You searched for subject:(carrier transport).
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Boston College
1.
Protik, Nakib Haider.
Phonon and Carrier Transport in Semiconductors from First
Principles.
Degree: PhD, Physics, 2019, Boston College
URL: http://dlib.bc.edu/islandora/object/bc-ir:108608 
► We present fundamental studies of phonon and electron transport in semiconductors. First principles density functional theory (DFT) is combined with exact numerical solutions of the…
(more)
▼ We present fundamental studies of phonon and electron
transport in semiconductors. First principles density functional
theory (DFT) is combined with exact numerical solutions of the
Boltzmann
transport equation (BTE) for phonons and electrons to
calculate various
transport coefficients. The approach is used to
determine the lattice thermal conductivity of three hexagonal
polytypes of silicon carbide. The calculated results show excellent
agreement with recent experiments. Next, using the infinite orders
T-matrix approach, we calculate the effect of various neutral and
charged substitution defects on the thermal conductivity of boron
arsenide. Finally, we present a general coupled electron-phonon
BTEs scheme designed to capture the mutual drag of the two
interacting systems. By combining first principles calculations of
anharmonic phonon interactions with phenomenological models of
electron-phonon interactions, we apply our implementation of the
coupled BTEs to calculate the thermal conductivity, mobility,
Seebeck and Peltier coefficients of n-doped gallium arsenide. The
measured low temperature enhancement in the Seebeck coefficient is
captured using the solution of the fully coupled electron-phonon
BTEs, while the uncoupled electron BTE fails to do so. This work
gives insights into the fundamental nature of charge and heat
transport in semiconductors and advances predictive ab initio
computational approaches. We discuss possible extensions of our
work.
Advisors/Committee Members: David Broido (Thesis advisor).
Subjects/Keywords: Boltzmann transport; carrier transport; defects; drag effect; phonon transport; semiconductors
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APA (6th Edition):
Protik, N. H. (2019). Phonon and Carrier Transport in Semiconductors from First
Principles. (Doctoral Dissertation). Boston College. Retrieved from http://dlib.bc.edu/islandora/object/bc-ir:108608
Chicago Manual of Style (16th Edition):
Protik, Nakib Haider. “Phonon and Carrier Transport in Semiconductors from First
Principles.” 2019. Doctoral Dissertation, Boston College. Accessed March 05, 2021.
http://dlib.bc.edu/islandora/object/bc-ir:108608.
MLA Handbook (7th Edition):
Protik, Nakib Haider. “Phonon and Carrier Transport in Semiconductors from First
Principles.” 2019. Web. 05 Mar 2021.
Vancouver:
Protik NH. Phonon and Carrier Transport in Semiconductors from First
Principles. [Internet] [Doctoral dissertation]. Boston College; 2019. [cited 2021 Mar 05].
Available from: http://dlib.bc.edu/islandora/object/bc-ir:108608.
Council of Science Editors:
Protik NH. Phonon and Carrier Transport in Semiconductors from First
Principles. [Doctoral Dissertation]. Boston College; 2019. Available from: http://dlib.bc.edu/islandora/object/bc-ir:108608
The Ohio State University
2.
Poehler, Scott A.
Transport Phenomena of CVD Few-Layer MoS2 As-grown on an
Al2O3 Substrate.
Degree: MS, Electrical and Computer Engineering, 2015, The Ohio State University
URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1440181154
► Fabricating devices with as-grown films is necessary for high volume production however challenges with adding functional gates to MoS2 films natively grown on Al2O3 have…
(more)
▼ Fabricating devices with as-grown films is necessary
for high volume production however challenges with adding
functional gates to MoS2 films natively grown on Al2O3 have limited
its usefulness for VLSI manufacturing. A more thorough
understanding of this material configuration is required before we
can develop effective surface treatment strategies prior to adding
gate dielectrics. The scope of this study covers the
transport
phenomena of charge carriers in few layer MoS2 as-grown by CVD on
Al2O3 substrate. We examine
carrier transport mechanism dominance
for temperatures ranging from 30 K to 310 K for AC conductance
measurements and 5 K to 350 K for DC I-V measurements. Scaled AC
conductance verses frequency indicating a one-to-one relationship
between sDC and transition frequency ft, from 30 K to 90K is a
signature of variable range hopping (VRH)
transport as conductance
becomes steadily independent of frequency with increased
temperature. The scaling behavior with increasing temperature shows
a saturation point indicating a shift from VRH
transport. The fit
of AC conductance to the universal power relation s = s0(1+f/ft)s
supports the observed shift in
transport mechanisms. Conductance
becomes less sensitive to frequency beyond 90 K indicating
dominance of band
transport though there still exists a slight
dispersion of carriers even at higher temperatures. The T-p
relationship of conductance (Efros-Shklovskii (p=1/2) or Mott
(p=1/3)) at low temperatures favors the Efros-Shklovskii model.
Below the linear fit regions evidence shows resonant tunneling at
localized states. Above these linear fit regions, the resistance
curve derivative analysis of sDC from 100 K to 160 K is found to
correspond to the shift from VRH to band
transport. The
mobility-temperature dependence calculated from measured DC
current-voltage data using the Mott-Gurney law for space limited
current correlates mobility measurements to the observed transition
between
transport mechanisms with a defining temperature point of
about 160 K where the balance of
transport mechanisms shift. We
expected mobility to decrease at higher temperatures due to phonon
scattering, but found that mobility only continued to increase. We
determined that the modified Mott-Gurney-Hartke current model
explained the experimental data better at the higher temperature
indicating currents were more sensitive to the Frenkel effect and
showing evidence of a high density of traps. In the transition from
the hopping dominated
transport at very low temperatures to the
band
transport at higher temperatures, the conductance continues to
rise with temperature. The high density of traps increases the
influence of impurity scattering, screening the effects of phonon
scattering which explains the increasing mobility even at higher
temperatures.
Advisors/Committee Members: Lu, Wu (Advisor).
Subjects/Keywords: Electrical Engineering; Materials Science; MoS2, carrier transport mechanism, signature transport
transition
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APA (6th Edition):
Poehler, S. A. (2015). Transport Phenomena of CVD Few-Layer MoS2 As-grown on an
Al2O3 Substrate. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1440181154
Chicago Manual of Style (16th Edition):
Poehler, Scott A. “Transport Phenomena of CVD Few-Layer MoS2 As-grown on an
Al2O3 Substrate.” 2015. Masters Thesis, The Ohio State University. Accessed March 05, 2021.
http://rave.ohiolink.edu/etdc/view?acc_num=osu1440181154.
MLA Handbook (7th Edition):
Poehler, Scott A. “Transport Phenomena of CVD Few-Layer MoS2 As-grown on an
Al2O3 Substrate.” 2015. Web. 05 Mar 2021.
Vancouver:
Poehler SA. Transport Phenomena of CVD Few-Layer MoS2 As-grown on an
Al2O3 Substrate. [Internet] [Masters thesis]. The Ohio State University; 2015. [cited 2021 Mar 05].
Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1440181154.
Council of Science Editors:
Poehler SA. Transport Phenomena of CVD Few-Layer MoS2 As-grown on an
Al2O3 Substrate. [Masters Thesis]. The Ohio State University; 2015. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1440181154
University of Kansas
3.
Ruzicka, Brian Andrew.
Ultrafast optical studies of electronic dynamics in semiconductors.
Degree: PhD, Physics & Astronomy, 2012, University of Kansas
URL: http://hdl.handle.net/1808/10310
► The dynamics of charge carriers in semiconductors are of fundamental importance for semiconductor applications. This includes studies of energy relaxation, carrier recombination, and carrier transport…
(more)
▼ The dynamics of charge carriers in semiconductors are of fundamental importance for semiconductor applications. This includes studies of energy relaxation,
carrier recombination, and
carrier transport (both diffusive and ballistic). Due to their limited temporal resolution, electron measurement techniques cannot be used to study these processes on time scales in which the
carrier-lattice system is not in equilibrium. However, in contemporary semiconductor devices with nanometer dimensions, this is the regime that is of interest. In this dissertation, ultrafast optical experimental techniques and results from various semiconductors are presented, which provide information about nonequilibrium electronic dynamics. First, a time resolved pump-probe technique is discussed, which can be used to measure
carrier energy relaxation and
carrier lifetime, and results are presented on reduced graphene oxide, Si/SiGe quantum wells, and single walled carbon nanotubes. Then, a spatially and temporally resolved pump-probe technique is discussed, which can be used to study
carrier diffusion, and results are presented on GaAs, graphene, Si/SiGe quantum wells and single walled carbon nanotubes. Next, a quantum interference and control technique and a differential pump-probe technique that can be used to inject and detect ballistic currents are discussed along with results for the efficiency of such an injection technique and a demonstration of an AC spin polarized charge current in GaAs that was injected and detected using these techniques. Finally, a current-induced second harmonic generation technique that can be used to directly study currents is discussed, with results presented on both steady state and transient currents in GaAs.
Advisors/Committee Members: Zhao, Hui (advisor), Wu, Judy (cmtemember), Han, Siyuan (cmtemember), Chiu, Hsin-Ying (cmtemember), Ren, Shenqiang (cmtemember).
Subjects/Keywords: Physics; Condensed matter physics; Carrier dynamics; Carrier transport; Graphene; Pump-probe; Second harmonic generation; Ultrafast
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APA (6th Edition):
Ruzicka, B. A. (2012). Ultrafast optical studies of electronic dynamics in semiconductors. (Doctoral Dissertation). University of Kansas. Retrieved from http://hdl.handle.net/1808/10310
Chicago Manual of Style (16th Edition):
Ruzicka, Brian Andrew. “Ultrafast optical studies of electronic dynamics in semiconductors.” 2012. Doctoral Dissertation, University of Kansas. Accessed March 05, 2021.
http://hdl.handle.net/1808/10310.
MLA Handbook (7th Edition):
Ruzicka, Brian Andrew. “Ultrafast optical studies of electronic dynamics in semiconductors.” 2012. Web. 05 Mar 2021.
Vancouver:
Ruzicka BA. Ultrafast optical studies of electronic dynamics in semiconductors. [Internet] [Doctoral dissertation]. University of Kansas; 2012. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/1808/10310.
Council of Science Editors:
Ruzicka BA. Ultrafast optical studies of electronic dynamics in semiconductors. [Doctoral Dissertation]. University of Kansas; 2012. Available from: http://hdl.handle.net/1808/10310
University of Michigan
4.
Kim, Gun Ho.
Thermoelectric Transport in Organic Materials.
Degree: PhD, Mechanical Engineering, 2013, University of Michigan
URL: http://hdl.handle.net/2027.42/102350
► Organic materials are well-suited to certain applications due to their low cost, low weight, and mechanical flexibility, but are less desirable for other applications due…
(more)
▼ Organic materials are well-suited to certain applications due to their low cost, low weight, and mechanical flexibility, but are less desirable for other applications due to poor conduction of electricity and heat. The contributions of my work focus on strategies to mitigate these limitations in current and emerging organic materials, developing techniques to improve charge
carrier mobility in doped organic semiconductors (OSCs) and improve thermal conductivity in common commercial plastic materials.
Understanding of charge
carrier transport is a prerequisite to developing a good electrical conductor. In OSCs, charge carriers are historically assumed to be strongly localized, which bears heavily on their assumed mechanism of
transport; however, the degree of localization in emerging high-conductivity OSCs has been the
subject of intense study. My work develops a model that can be used with thermoelectric measurements to quantitatively determine the degree of
carrier localization in an OSC, and applies this technique to high-conductivity polymers and iodine-doped pentacene films. The model also suggests a strategy to improve energy conversion efficiency in OSC-based thermoelectric materials by reducing dopant volume. This strategy was confirmed experimentally to vary all three thermoelectric parameters (Seebeck coefficient, electrical conductivity, and thermal conductivity) in a manner that increases thermoelectric efficiency, in sharp contrast to their trade-offs in common inorganic semiconductor based thermoelectric materials. This method led to 70% increase in the thermoelectric efficiency from the previous record for an OSC.
Finally, I propose and study methods to increase inter-chain bonding in polymer mixtures as an efficient engineering route to improve their thermal conductivity. By controlling the mole fractions of components to favor (strong) hydrogen bonds over weaker van der Waals bonds, the thermal conductivities of mixtures of common commercial polymers are increased by an order of magnitude, reaching 1.72 W/mK, the highest value yet reported among non-crystalline polymer materials without the incorporation of fillers.
Advisors/Committee Members: Pipe, Kevin Patrick (committee member), Shtein, Max (committee member), Sangi Reddy, Pramod (committee member), Kurabayashi, Katsuo (committee member), Kim, Jinsang (committee member).
Subjects/Keywords: Organic Materials; Thermoelectric Conversion Efficiency; Charge Carrier Transport; Thermal Transport; Materials Science and Engineering; Engineering
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APA (6th Edition):
Kim, G. H. (2013). Thermoelectric Transport in Organic Materials. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/102350
Chicago Manual of Style (16th Edition):
Kim, Gun Ho. “Thermoelectric Transport in Organic Materials.” 2013. Doctoral Dissertation, University of Michigan. Accessed March 05, 2021.
http://hdl.handle.net/2027.42/102350.
MLA Handbook (7th Edition):
Kim, Gun Ho. “Thermoelectric Transport in Organic Materials.” 2013. Web. 05 Mar 2021.
Vancouver:
Kim GH. Thermoelectric Transport in Organic Materials. [Internet] [Doctoral dissertation]. University of Michigan; 2013. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/2027.42/102350.
Council of Science Editors:
Kim GH. Thermoelectric Transport in Organic Materials. [Doctoral Dissertation]. University of Michigan; 2013. Available from: http://hdl.handle.net/2027.42/102350
NSYSU
5.
Lin, Song-Cheng.
Study of Carrier Transport Properties of Phenothiazine/Dimesitylborane-Based Materials.
Degree: Master, Electro-Optical Engineering, 2016, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0722116-164916
► Organic semiconductors can be widely applied in optoelectronic devices benefiting on their unique optical and electrical properties. Carrier transport capability of the materials plays a…
(more)
▼ Organic semiconductors can be widely applied in optoelectronic devices benefiting on their unique optical and electrical properties.
Carrier transport capability of the materials plays a critical role in the performances of organic optoelectronic devices. Therefore, the development of bipolar-transporting materials is an important topic.
In this thesis, we use time-of-flight measurement technique to study
carrier transport properties of phenothiazine/dimesitylborane-based materials. The dimesitylborane and phenothiazine moieties was verified to introduce bipolar
transport capability. The electron and hole mobilities of these materials are in the range of 6.2Ã10-6ï¼1.0Ã10-3 cm2/Vs and 3.2Ã10-6ï¼8.8Ã10-5 cm2/Vs, respectively. Interestingly, we found that the electron mobility was increased with the increasing number of phenothiazine moieties. The electron mobilities of the three materials which have three, two and one phenothiazine moieties are 7.7 Ã 10-5cm2 / Vs, 2.8 Ã 10-5cm2 / Vs and 7.1 Ã 10-6cm2 / Vs, respectively.
Because the series of materials have bipolar transporting capability, they can be applied in OLED as host materials.
Advisors/Committee Members: Jiann-Tsuen Lin (chair), Li-Yin Chen (committee member), Ann-Kuo Chu (chair).
Subjects/Keywords: phenothiazine; dimesitylborane; time-of-flight; bipolar transport; carrier mobility
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APA ·
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APA (6th Edition):
Lin, S. (2016). Study of Carrier Transport Properties of Phenothiazine/Dimesitylborane-Based Materials. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0722116-164916
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Lin, Song-Cheng. “Study of Carrier Transport Properties of Phenothiazine/Dimesitylborane-Based Materials.” 2016. Thesis, NSYSU. Accessed March 05, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0722116-164916.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Lin, Song-Cheng. “Study of Carrier Transport Properties of Phenothiazine/Dimesitylborane-Based Materials.” 2016. Web. 05 Mar 2021.
Vancouver:
Lin S. Study of Carrier Transport Properties of Phenothiazine/Dimesitylborane-Based Materials. [Internet] [Thesis]. NSYSU; 2016. [cited 2021 Mar 05].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0722116-164916.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Lin S. Study of Carrier Transport Properties of Phenothiazine/Dimesitylborane-Based Materials. [Thesis]. NSYSU; 2016. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0722116-164916
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Ryerson University
6.
Zafar, Maliha.
Substrate Dependent Regulation of the Human Equilibrative Nucleoside Transporter 1 (hENT1) in HEK293 Cells.
Degree: 2015, Ryerson University
URL: https://digital.library.ryerson.ca/islandora/object/RULA%3A4189
► Nucleosides and nucleoside analog drugs enter cells through nucleoside transporters, such as the human equilibrative nucleoside transporter 1 (hENT1). The regulation of nucleoside transporters is…
(more)
▼ Nucleosides and nucleoside analog drugs enter cells through nucleoside transporters, such as the human equilibrative nucleoside transporter 1 (hENT1). The regulation of nucleoside transporters is poorly understood. In this study, through fluorescence-activated cell sorting (FACS) analyses, confocal microscopy and radio-ligand binding assays, I show a decrease in hENT1 abundance at the plasma membrane (PM) in HEK cells treated in the presence of a bolus amount of cytidine (40μM) for 6 hours. Kinetic and
transport assays indicate that the remaining hENT1 population at the PM has a higher Vmax and Km but there is no change in overall substrate uptake compared to untreated cells. I also show that cytidine pre-treatment leads to an increased cytotoxicity from gemcitabine (a nucleoside analog drug). These are the first data that show direct substrate dependent regulation of a nucleoside transporter by a mechanism that may involve increased recycling/internalization of the transporter.
Advisors/Committee Members: Coe, Imogen (Thesis advisor).
Subjects/Keywords: Cells – Mechanical properties; Nucleosides; Biological transport; Carrier proteins; Drug carriers (Pharmacy)
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APA ·
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APA (6th Edition):
Zafar, M. (2015). Substrate Dependent Regulation of the Human Equilibrative Nucleoside Transporter 1 (hENT1) in HEK293 Cells. (Thesis). Ryerson University. Retrieved from https://digital.library.ryerson.ca/islandora/object/RULA%3A4189
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Zafar, Maliha. “Substrate Dependent Regulation of the Human Equilibrative Nucleoside Transporter 1 (hENT1) in HEK293 Cells.” 2015. Thesis, Ryerson University. Accessed March 05, 2021.
https://digital.library.ryerson.ca/islandora/object/RULA%3A4189.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Zafar, Maliha. “Substrate Dependent Regulation of the Human Equilibrative Nucleoside Transporter 1 (hENT1) in HEK293 Cells.” 2015. Web. 05 Mar 2021.
Vancouver:
Zafar M. Substrate Dependent Regulation of the Human Equilibrative Nucleoside Transporter 1 (hENT1) in HEK293 Cells. [Internet] [Thesis]. Ryerson University; 2015. [cited 2021 Mar 05].
Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A4189.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Zafar M. Substrate Dependent Regulation of the Human Equilibrative Nucleoside Transporter 1 (hENT1) in HEK293 Cells. [Thesis]. Ryerson University; 2015. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A4189
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
NSYSU
7.
Hu, Yu-Yan.
Both Side Collection on Emitter Wrap Through Bifacial Solar Cell.
Degree: Master, Electrical Engineering, 2017, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0715117-114241
► We propose a symmetrical solar cell structure which has both emitters and Al-SFs in the both sides. They can enhance the effect of the both-side…
(more)
▼ We propose a symmetrical solar cell structure which has both emitters and Al-SFs in the both sides. They can enhance the effect of the both-side collection and increase the JSC. The comparison between the other cells also demonstrate the advantage of our new BSC-EWT (Both Side Collection on Emitter Wrap Through) solar cell. The both-sided emitter can lower
carrier transport lengths in the base which suppress the recombination effect. The both-side collection allow to employ low lifetime material, such as p-type Si or mc-Si, which can achieve high efficiency and low cost at the same time. By using the TCAD simulator with carefully calibration, we investigate the behavior of these cells. First, the EWT (Emitter Wrap Through) has double-sided emitters therefore the conversion efficiency improves 3.87 % compared with BC-BJ (Back contact and back junction), but it still needs to promote. When the both-side contacts are set up in the EWT, which is so-called BOSCO (Both Side Contact and Collection), the collection of minority
carrier has been promoted perfectly and improves the efficiency for 2.06 % again compared to EWT. In order to further improve the FF by lower the series resistance, our new BSC-EWT has proposed double-sided emitters and Al-SFs structure that can reduce the current paths. Even if there is a small reduction of JSC to BSC-EWT, the increments of FF contribute the efficiency significantly compared with BOSCO. Finally, the BSC-EWT achieve highest efficiency of 22.92 %, which improved 12.5 % compared to that of the original BC-BJ. Moreover, the bifacial testing shows that our BSC-EWT with double-sided emitters and both-side contacts is beneficial for bifacial application.
Advisors/Committee Members: Min-Hang, Weng (chair), Jyi-Tsong, Lin (committee member), Kow-Ming, Chang (chair), Shui-Hsiang, Su (chair), Chee-wee, Liu (chair).
Subjects/Keywords: both-side collection; carrier transport length; double-sided emitter; bifacial
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APA ·
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Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hu, Y. (2017). Both Side Collection on Emitter Wrap Through Bifacial Solar Cell. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0715117-114241
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hu, Yu-Yan. “Both Side Collection on Emitter Wrap Through Bifacial Solar Cell.” 2017. Thesis, NSYSU. Accessed March 05, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0715117-114241.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hu, Yu-Yan. “Both Side Collection on Emitter Wrap Through Bifacial Solar Cell.” 2017. Web. 05 Mar 2021.
Vancouver:
Hu Y. Both Side Collection on Emitter Wrap Through Bifacial Solar Cell. [Internet] [Thesis]. NSYSU; 2017. [cited 2021 Mar 05].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0715117-114241.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hu Y. Both Side Collection on Emitter Wrap Through Bifacial Solar Cell. [Thesis]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0715117-114241
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Jönköping University
8.
Tillman, Peter.
Carrier selection criteria for Scandinavian domestic road transport : A study of the competition between Scandinavian and Eastern European hauliers in a scenario without restrictions on cabotage.
Degree: Centre of Logistics and Supply Chain Management, 2012, Jönköping University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-19668
► The European Commission has for some time indicated a desire to remove the remaining restrictions on cabotage. Such liberalization is expected to result in…
(more)
▼ The European Commission has for some time indicated a desire to remove the remaining restrictions on cabotage. Such liberalization is expected to result in significant changes on some domestic road transport markets. The Scandinavian markets are among these and the local hauilers fear that the lower wages of Easter European hauliers will leave them out of business. In this thesis a scenario of full cabotage liberalization is assumed. Representatives from associations with interest within the Scandinavian road transport markets has been approached with a qualitative survey on carrier selection criteria. Respondents are asked to determine the importance of the criteria, as well as the relevance to the competition between Scandinavian and Eastern European hauliers. Finally they are asked to assess whether the advantage of each criterion lies with Scandinavian or Eastern European hauliers. The qualitative orientation of the survey is achieved though justification and follow up questions. Reliability of pickups and deliveries is still regarded the most important criteria. Also competitive prices received a high rating. It is concluded that the significant price difference between Scandinavian and Eastern European hauliers will benefit Eastern European hauliers considerably in the competition for the simple “from A to B” shipments. For more complicated shipments, entailing a higher level of service, communication and supply chain integration, the local hauliers are expected to stand their ground.
Subjects/Keywords: Carrier selection criteria; haulier selection; Road transport; cabotage.
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APA (6th Edition):
Tillman, P. (2012). Carrier selection criteria for Scandinavian domestic road transport : A study of the competition between Scandinavian and Eastern European hauliers in a scenario without restrictions on cabotage. (Thesis). Jönköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-19668
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Tillman, Peter. “Carrier selection criteria for Scandinavian domestic road transport : A study of the competition between Scandinavian and Eastern European hauliers in a scenario without restrictions on cabotage.” 2012. Thesis, Jönköping University. Accessed March 05, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-19668.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Tillman, Peter. “Carrier selection criteria for Scandinavian domestic road transport : A study of the competition between Scandinavian and Eastern European hauliers in a scenario without restrictions on cabotage.” 2012. Web. 05 Mar 2021.
Vancouver:
Tillman P. Carrier selection criteria for Scandinavian domestic road transport : A study of the competition between Scandinavian and Eastern European hauliers in a scenario without restrictions on cabotage. [Internet] [Thesis]. Jönköping University; 2012. [cited 2021 Mar 05].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-19668.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Tillman P. Carrier selection criteria for Scandinavian domestic road transport : A study of the competition between Scandinavian and Eastern European hauliers in a scenario without restrictions on cabotage. [Thesis]. Jönköping University; 2012. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-19668
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Hong Kong University of Science and Technology
9.
Sun, Yiwen.
The novel role of Trs85p in the ER-Golgi secretory pathway.
Degree: 2014, Hong Kong University of Science and Technology
URL: http://repository.ust.hk/ir/Record/1783.1-79433
;
https://doi.org/10.14711/thesis-b1334236
;
http://repository.ust.hk/ir/bitstream/1783.1-79433/1/th_redirect.html
► In the yeast membrane traffic pathway, COPI mediated ER-Golgi retrograde traffic is essential for its indispensible role in recycling ER resident proteins, trafficking machinery molecules…
(more)
▼ In the yeast membrane traffic pathway, COPI mediated ER-Golgi retrograde traffic is essential for its indispensible role in recycling ER resident proteins, trafficking machinery molecules and maintaining the integrity of the Golgi apparatus. As the interdependence of ER-Golgi anterograde and retrograde pathways makes it difficult to separate them for individual study, some mechanisms and molecules responsible for the retrograde traffic remain elusive. Some trafficking components fulfilling key functions in the early secretory pathway are not essential, which indicates that multiples molecules or parallel pathways might be involved complementally. In present study, aiming to identify the potential retrograde traffic pathway, I conducted a genetic screen with a sec26 mutant. SEC26 is an essential gene encoding a subunit of COPI complex, the mutation of which results in the failure of sorting v-SNARE Sec22p in the COPI vesicles. However, the deficiency of Sec22p recycling doesn’t disturb the bi-directional traffic between ER and Golgi. In the screen, four genes were discovered that their missense mutations or null mutations were synthetic lethal with the sec26 mutant. TRS85, encoding a unique subunit of TRAPPIII complex, was among them. Besides trs85Δ, a trs85 allele with a conserved amino acid substitution was identified to be synthetic sick with the sec26 mutant. Previously, the TRAPPIII complex was considered to be only involved in initiating the organization of preautophagosome and tethering in autophagy pathway. Interestingly, I discovered that the trs85Δ, and the trs85 allele strains are defective in the anterograde delivering of Sec22p, and the Carboxypeptidase Y from ER to Golgi, which reveals a possible role of Trs85p in the early secretory pathway. In conclusion, the TRAPP III complex, and its downstream effector GTPase Ypt1p might also function in the early secretory pathway, similarly with the TRAPPI, which has already been identified as tethering factor in the cis-Golgi membrane. The TRAPPIII complex might function in a parallel anterograde pathway that is essential to compensate the Sec22p when the later fails to be recycled, or the TRAPPIII-dependent pathway is required to deliver the traffic components that function in parallel with Sec22p in the retrograde direction.
Subjects/Keywords: Carrier proteins
; Endoplasmic reticulum
; Membrane proteins
; Biological transport
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APA (6th Edition):
Sun, Y. (2014). The novel role of Trs85p in the ER-Golgi secretory pathway. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-79433 ; https://doi.org/10.14711/thesis-b1334236 ; http://repository.ust.hk/ir/bitstream/1783.1-79433/1/th_redirect.html
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Sun, Yiwen. “The novel role of Trs85p in the ER-Golgi secretory pathway.” 2014. Thesis, Hong Kong University of Science and Technology. Accessed March 05, 2021.
http://repository.ust.hk/ir/Record/1783.1-79433 ; https://doi.org/10.14711/thesis-b1334236 ; http://repository.ust.hk/ir/bitstream/1783.1-79433/1/th_redirect.html.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Sun, Yiwen. “The novel role of Trs85p in the ER-Golgi secretory pathway.” 2014. Web. 05 Mar 2021.
Vancouver:
Sun Y. The novel role of Trs85p in the ER-Golgi secretory pathway. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2014. [cited 2021 Mar 05].
Available from: http://repository.ust.hk/ir/Record/1783.1-79433 ; https://doi.org/10.14711/thesis-b1334236 ; http://repository.ust.hk/ir/bitstream/1783.1-79433/1/th_redirect.html.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Sun Y. The novel role of Trs85p in the ER-Golgi secretory pathway. [Thesis]. Hong Kong University of Science and Technology; 2014. Available from: http://repository.ust.hk/ir/Record/1783.1-79433 ; https://doi.org/10.14711/thesis-b1334236 ; http://repository.ust.hk/ir/bitstream/1783.1-79433/1/th_redirect.html
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Florida Atlantic University
10.
Purpura, Lauren Angeline.
An investigation of membrane transporter proteins in the distal vertebrate retina: excitatory amino acid transporters and sodium potassium chloride cotransporters.
Degree: 2014, Florida Atlantic University
URL: http://purl.flvc.org/fau/fd/FA00004224
;
(URL)
http://purl.flvc.org/fau/fd/FA00004224
► Summary: Neurons are able to maintain membrane potential and synaptic integrity by an intricate equilibrium of membrane transporter proteins and ion channels. Two membrane proteins…
(more)
▼ Summary: Neurons are able to maintain membrane potential and synaptic integrity by an
intricate equilibrium of membrane transporter proteins and ion channels. Two
membrane proteins of particular importance in the vertebrate retina are the
excitatory amino acid transporters (EAATs) which are responsible for the reuptake
of glutamate into both glial and neuronal cells and the sodium potassium
chloride cotransporters (NKCCs) that are responsible for the uptake of chloride
ions into the cell. NKCCs are electro-neutral with the uptake of 2 Cl- coupled to
an exchange of a potassium and Na+ ion into the cells. Therefore, there is little
change of cell membrane potential in the action of NKCCs. In this study the
localization and function of EAATs in the distal retina is investigated. Whole cell
patch clamp recordings in lower vertebrate retina have demonstrated that EAAT2
is the main synaptic EAATs in rod photoreceptors and it is localized to the axon terminals. Furthermore, the action of the transporter seems to be modified by
intracellular calcium concentration. There is also evidence that EAAT2 might be
regulated by feedback from the neuron network by glycinergic and GABAergic
mechanisms. The second half of this study investigates expression of NKCCs in
the retina by western blot analysis and quantitative polymerase chain reaction.
There are two forms of NKCCs, NKCC1 and NKCC2. NKCC1 is mostly
expressed in the central nervous system and NKCC2 was thought to only be
expressed in the kidneys. NKCC1 is responsible for the majority of chloride
uptake into neuronal and epithelial cells and NKCC1 is expressed in the distal
retina where photoreceptors synapse on second order horizontal and bipolar
cells. This study found the expression of NKCC1 in the distal retina to be
regulated by temporal light and dark adaptation. Light adaptation increased
phosphorylated NKCC1 expression (the active form of the cotransporter). The
increase in NKCC1 expression during light adaptation was modulated by
dopamine. Specifically, a D1 receptor agonist increased phosphorylated NKCC1
expression. Dopamine is an essential chemical and receptor known for initiating
light adaptation in retina. Finally, an NKCC1 knockout mouse model was
examined and it revealed that both forms of NKCC are expressed in the
vertebrate retina.
2014
Degree granted: Dissertation (Ph.D.) – Florida Atlantic University, 2014.
Collection: FAU
Advisors/Committee Members: Shen, Wen (Thesis advisor), Florida Atlantic University (Degree grantor), Charles E. Schmidt College of Science, Department of Biological Sciences.
Subjects/Keywords: Biological transport; Carrier proteins; Cellular signal transduction; Neural receptors; Retina – Cytology
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to Zotero / EndNote / Reference
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APA (6th Edition):
Purpura, L. A. (2014). An investigation of membrane transporter proteins in the distal vertebrate retina: excitatory amino acid transporters and sodium potassium chloride cotransporters. (Thesis). Florida Atlantic University. Retrieved from http://purl.flvc.org/fau/fd/FA00004224 ; (URL) http://purl.flvc.org/fau/fd/FA00004224
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Purpura, Lauren Angeline. “An investigation of membrane transporter proteins in the distal vertebrate retina: excitatory amino acid transporters and sodium potassium chloride cotransporters.” 2014. Thesis, Florida Atlantic University. Accessed March 05, 2021.
http://purl.flvc.org/fau/fd/FA00004224 ; (URL) http://purl.flvc.org/fau/fd/FA00004224.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Purpura, Lauren Angeline. “An investigation of membrane transporter proteins in the distal vertebrate retina: excitatory amino acid transporters and sodium potassium chloride cotransporters.” 2014. Web. 05 Mar 2021.
Vancouver:
Purpura LA. An investigation of membrane transporter proteins in the distal vertebrate retina: excitatory amino acid transporters and sodium potassium chloride cotransporters. [Internet] [Thesis]. Florida Atlantic University; 2014. [cited 2021 Mar 05].
Available from: http://purl.flvc.org/fau/fd/FA00004224 ; (URL) http://purl.flvc.org/fau/fd/FA00004224.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Purpura LA. An investigation of membrane transporter proteins in the distal vertebrate retina: excitatory amino acid transporters and sodium potassium chloride cotransporters. [Thesis]. Florida Atlantic University; 2014. Available from: http://purl.flvc.org/fau/fd/FA00004224 ; (URL) http://purl.flvc.org/fau/fd/FA00004224
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Notre Dame
11.
Tian Fang.
Carrier Transport in Graphene, Graphene Nanoribbon and GaN
HEMTs</h1>.
Degree: Electrical Engineering, 2012, University of Notre Dame
URL: https://curate.nd.edu/show/nv935140w15
► Graphene has a linear energy momentum dispersion and its Fermi velocity is vf=108 cm/s. This high carrier velocity and its perfect two-dimensional structure make…
(more)
▼ Graphene has a linear energy momentum
dispersion and its Fermi velocity is vf=10
8 cm/s. This high
carrier velocity and its perfect two-dimensional structure make it
suitable for high speed electronic devices. In this work, we study
the
carrier transport in graphene and quasi-one dimensional
graphene nanoribbons. The current-carrying capability in graphene
under high fields is investigated by numerical simulations. The
simulations reveal the roles of the hot-phonon effct and
carrier-carrier scatterings in graphene under high fields. The
effect of line edge roughness on mobility in sub-10 nm graphene
nanoribbons is studied analytically. The results indicate the
mobility in sub-10 nm graphene nanoribbons is limited by edge
roughness scatterings and agree with experimental work. In
addition, we explore inter-band tunneling in graphene and graphene
nanoribbons and the current-voltage characteristics of their p-n
junctions are calculated. Finally, an optical-phonon limited
velocity model is extended from carbon-based materials to
III-nitride semiconductors, which have comparable optical phonon
scattering rates. The electron-phonon interaction in graphene and
III-Nitride semiconductors have similarities characterized by light
mass atoms (C or N). Thus, high-field
transport in both materials
have similarities which enable analytical modeling of radio
frequency performance in these materials. GaN-based transistor
performance is studied based on the model.
Advisors/Committee Members: Alan Seabaugh, Committee Member, Gregory Snider, Committee Member, Debdeep Jena, Committee Member, Mark Wistey, Committee Member, Huili Xing, Committee Member.
Subjects/Keywords: carrier transport; graphene; GaN; graphene nanoribbon; high electron mobility transistor
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APA (6th Edition):
Fang, T. (2012). Carrier Transport in Graphene, Graphene Nanoribbon and GaN
HEMTs</h1>. (Thesis). University of Notre Dame. Retrieved from https://curate.nd.edu/show/nv935140w15
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Fang, Tian. “Carrier Transport in Graphene, Graphene Nanoribbon and GaN
HEMTs</h1>.” 2012. Thesis, University of Notre Dame. Accessed March 05, 2021.
https://curate.nd.edu/show/nv935140w15.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Fang, Tian. “Carrier Transport in Graphene, Graphene Nanoribbon and GaN
HEMTs</h1>.” 2012. Web. 05 Mar 2021.
Vancouver:
Fang T. Carrier Transport in Graphene, Graphene Nanoribbon and GaN
HEMTs</h1>. [Internet] [Thesis]. University of Notre Dame; 2012. [cited 2021 Mar 05].
Available from: https://curate.nd.edu/show/nv935140w15.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Fang T. Carrier Transport in Graphene, Graphene Nanoribbon and GaN
HEMTs</h1>. [Thesis]. University of Notre Dame; 2012. Available from: https://curate.nd.edu/show/nv935140w15
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Texas Tech University
12.
Gray, Kevin Anthony.
Protein:protein complexes in plant and bacterial electron transfer systems.
Degree: Chemistry, 1988, Texas Tech University
URL: http://hdl.handle.net/2346/20368
► The following study is composed of two main parts. Both are concerned with soluble electron transfer proteins but from two diverse systems. The first part…
(more)
▼ The following study is composed of two main parts. Both are concerned with soluble electron transfer proteins but from two diverse systems. The first part involves the elucidation of the initial steps of methylamine metabolism in the Gram-negative bacterium Paracoccus denitrificans. Oxidation-reduction properties and protein-protein interactions for the soluble constituents are reported. The second part concerns several ferredoxindependent enzymes from spinach. The interaction between ferredoxin and ferredoxin-NADP+ oxidoreductase (FNR); ferredoxin-hioredoxin oxidoreductase (FTR) and ferredoxin-nitrite oxidoreductase (nitrite reductase) is studied.
Subjects/Keywords: Electron transport; Carrier proteins
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gray, K. A. (1988). Protein:protein complexes in plant and bacterial electron transfer systems. (Thesis). Texas Tech University. Retrieved from http://hdl.handle.net/2346/20368
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Gray, Kevin Anthony. “Protein:protein complexes in plant and bacterial electron transfer systems.” 1988. Thesis, Texas Tech University. Accessed March 05, 2021.
http://hdl.handle.net/2346/20368.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Gray, Kevin Anthony. “Protein:protein complexes in plant and bacterial electron transfer systems.” 1988. Web. 05 Mar 2021.
Vancouver:
Gray KA. Protein:protein complexes in plant and bacterial electron transfer systems. [Internet] [Thesis]. Texas Tech University; 1988. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/2346/20368.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Gray KA. Protein:protein complexes in plant and bacterial electron transfer systems. [Thesis]. Texas Tech University; 1988. Available from: http://hdl.handle.net/2346/20368
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Arizona
13.
Huang, Wei-Jie.
Towards Increased Photovoltaic Energy Generation Efficiency and Reliability: Quantum-Scale Spectral Sensitizers in Thin-Film Hybrid Devices and Microcracking in Monocrystalline Si
.
Degree: 2016, University of Arizona
URL: http://hdl.handle.net/10150/623175
► The present work focuses on two strategies contributing to the development of high efficiency, cost-effective photovoltaic (PV) technology for renewable energy generation: the design of…
(more)
▼ The present work focuses on two strategies contributing to the development of high efficiency, cost-effective photovoltaic (PV) technology for renewable energy generation: the design of new materials offering enhanced opto-electronic performance and the investigation of material degradation processes and their role in predicting the long-term reliability of PV modules in the field. The first portion of the present work investigates the integration of a novel CdTe-ZnO nanocomposite material as a spectral sensitizer component within a thin-film, hybrid heterojunction (HJ) PV device structure. Quantum-scale semiconductors have the potential to improve PV device performance through enhanced spectral absorption and photocarrier
transport. This is realized via appropriate design of the semiconductor nanophase (providing tunable spectral absorption) and its spatial distribution within an electrically active matrix (providing long-range charge
transport). Here, CdTe nanocrystals, embedded in an electrically active ZnO matrix, form a nanocomposite (NC) offering control of both spectral absorption and photocarrier
transport behavior through the manipulation of nanophase assembly (ensemble effects). A sequential radio- frequency (RF) magnetron sputter deposition technique affords the control of semiconductor nanophase spatial distribution relative to the HJ plane in a hybrid, ZnO-P3HT test structure. Energy conversion performance (current density-voltage (J-V) and external quantum efficiency (EQE) response) was examined as a function of the location of the CdTe nanophase absorber region using both one dimensional solar cell capacitance simulator (SCAPS) and the experimental examination of analogous P3HT-ZnO based hybrid thin films. Enhancement in simulated EQE over a spectral range consistent with the absorption region of the CdTe nanophase (i.e. 400–475 nm) is confirmed in the experimental studies. Moreover, a trend of decreasing quantum efficiency in this spectral range with increasing separation between the CdTe nanophase region and the heterojunction plane is observed. The results are interpreted in terms of
carrier scattering/recombination length mitigating the successful
transport of carriers across the junction. The second portion of the research addresses the need for robust PV performance in commercial module as a primary contributor to cost-effective operation in both distributed systems and utility scale generation systems. The understanding of physical and chemical mechanisms resulting in the degradation of materials of construction used in PV modules is needed to understand the contribution of these processes to module integrity and performance loss with time under varied application environments. In this context, the second part of present study addresses microcracking in Si–an established degradation process contributing to PV module power loss. The study isolates microcrack propagation in single-crystal Si, and investigates the effect of local environment (temperature, humidity) on microcrack elongation under…
Advisors/Committee Members: Potter, Barrett G., Jr (advisor), Potter, Barrett G., Jr. (committeemember), Potter, Kelly (committeemember), Muralidharan, Krishna (committeemember).
Subjects/Keywords: Monocrystalline Si;
Photovoltaic;
Quantum dotsnanostructure;
Spectral sensitizer;
Carrier transport
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Huang, W. (2016). Towards Increased Photovoltaic Energy Generation Efficiency and Reliability: Quantum-Scale Spectral Sensitizers in Thin-Film Hybrid Devices and Microcracking in Monocrystalline Si
. (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/623175
Chicago Manual of Style (16th Edition):
Huang, Wei-Jie. “Towards Increased Photovoltaic Energy Generation Efficiency and Reliability: Quantum-Scale Spectral Sensitizers in Thin-Film Hybrid Devices and Microcracking in Monocrystalline Si
.” 2016. Doctoral Dissertation, University of Arizona. Accessed March 05, 2021.
http://hdl.handle.net/10150/623175.
MLA Handbook (7th Edition):
Huang, Wei-Jie. “Towards Increased Photovoltaic Energy Generation Efficiency and Reliability: Quantum-Scale Spectral Sensitizers in Thin-Film Hybrid Devices and Microcracking in Monocrystalline Si
.” 2016. Web. 05 Mar 2021.
Vancouver:
Huang W. Towards Increased Photovoltaic Energy Generation Efficiency and Reliability: Quantum-Scale Spectral Sensitizers in Thin-Film Hybrid Devices and Microcracking in Monocrystalline Si
. [Internet] [Doctoral dissertation]. University of Arizona; 2016. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10150/623175.
Council of Science Editors:
Huang W. Towards Increased Photovoltaic Energy Generation Efficiency and Reliability: Quantum-Scale Spectral Sensitizers in Thin-Film Hybrid Devices and Microcracking in Monocrystalline Si
. [Doctoral Dissertation]. University of Arizona; 2016. Available from: http://hdl.handle.net/10150/623175
14.
Hamm, Daniel Shane.
Development and Characterization of Lithium Indium Diselenide for Neutron Detection and Imaging Applications.
Degree: 2018, University of Tennessee – Knoxville
URL: https://trace.tennessee.edu/utk_graddiss/4892
► Lithium indium diselenide [LISe] is under development as a single crystal semiconductor detector for neutron detection applications. Enriched in lithium-6, a neutron sensitive isotope, this…
(more)
▼ Lithium indium diselenide [LISe] is under development as a single crystal semiconductor detector for neutron detection applications. Enriched in lithium-6, a neutron sensitive isotope, this wide-band gap semiconductor possesses the inherent neutron-gamma discrimination afforded by the thermal neutron capture reaction energy while providing distinct efficiency advantages over lithiated conversion layer detectors. The overarching theme of this work is to characterize the fundamental properties of this material to optimize its performance in neutron detection applications. The work presented here includes the identification of a suitable metallurgical contact for advanced detector fabrication, fundamental electronic property characterization, and proof-of-principle fast neutron imaging performance. Candidate contact materials were deposited through radio frequency magnetron sputtering. The primary metrics used to identify a robust contact were adhesion to the LISe surface and current voltage characteristics. Among the numerous contacts investigated, indium demonstrated the best adhesion properties. Its viability was demonstrated through the fabrication of a pixelated thermal neutron imaging detector (LTNI). Charge generation, transport, and trapping properties were investigated with emphasis on the stability of these properties post-operation in high thermal neutron flux fields. Neutron and alpha spectroscopy, photoinduced current transient spectroscopy, Raman spectroscopy, trap-filled limited voltage, and photoconductivity measurements were used to probe the charge transport and trapping mechanisms. Moderate transport properties were identified with respect to comparable technologies. Defect studies demonstrated that the type and density of defects strongly influenced performance of the detector. Encouraged by the performance of LTNI, an imaging detector was fabricated by coupling a LISe crystal to a 256 x 256 channel Timepix Application Specific Integrated Circuit to maximize spatial resolution. The fast neutron spatial resolution for 9MeV [electron-Volts] neutrons was investigated via a knife edge experiment. The measured efficiency was in agreement with the Evaluated Nuclear Data File cross-section database. The ultimate spatial resolution of the system was determined as 1.55 millimeters via the 10-90% decrease in contrast of the one-dimensional edge spread function. In conclusion, this material has been shown to exhibit suitable properties warranting further development for high efficiency slow neutron applications guided by the results of this work.
Subjects/Keywords: neutron detection; neutron radiography; 6LiInSe2; semiconductor radiation detector; charge carrier transport
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APA (6th Edition):
Hamm, D. S. (2018). Development and Characterization of Lithium Indium Diselenide for Neutron Detection and Imaging Applications. (Doctoral Dissertation). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_graddiss/4892
Chicago Manual of Style (16th Edition):
Hamm, Daniel Shane. “Development and Characterization of Lithium Indium Diselenide for Neutron Detection and Imaging Applications.” 2018. Doctoral Dissertation, University of Tennessee – Knoxville. Accessed March 05, 2021.
https://trace.tennessee.edu/utk_graddiss/4892.
MLA Handbook (7th Edition):
Hamm, Daniel Shane. “Development and Characterization of Lithium Indium Diselenide for Neutron Detection and Imaging Applications.” 2018. Web. 05 Mar 2021.
Vancouver:
Hamm DS. Development and Characterization of Lithium Indium Diselenide for Neutron Detection and Imaging Applications. [Internet] [Doctoral dissertation]. University of Tennessee – Knoxville; 2018. [cited 2021 Mar 05].
Available from: https://trace.tennessee.edu/utk_graddiss/4892.
Council of Science Editors:
Hamm DS. Development and Characterization of Lithium Indium Diselenide for Neutron Detection and Imaging Applications. [Doctoral Dissertation]. University of Tennessee – Knoxville; 2018. Available from: https://trace.tennessee.edu/utk_graddiss/4892
Vanderbilt University
15.
Talbert, Eric Michael.
Photoexcited Carrier Dynamics in Mixed Halide Perovskites: A Morphological Perspective.
Degree: MS, Chemical Engineering, 2016, Vanderbilt University
URL: http://hdl.handle.net/1803/13468
► In this work, we probe the mechanisms of excitation and subsequent recombination of electron-hole pairs in the mixed bandgap perovskite crystal CH3NH3Pb(I1-xBrx)3, x=0-0.33, using ultrafast…
(more)
▼ In this work, we probe the mechanisms of excitation and subsequent recombination of electron-hole pairs in the mixed bandgap perovskite crystal CH
3NH
3Pb(I
1-xBr
x)
3, x=0-0.33, using ultrafast spectroscopies. The perovskite grain size can be tuned to reflect the size of intrinsic iodide-rich nuclei, which depend strongly on coordination of PbI
2 with the deposition solvent prior to spin-casting. These iodide-rich nuclei, visualized for the first time in SEM and STEM-EDS, serve as low-bandgap recombination centers within the mixed crystal. Picosecond time-resolved photoluminescence (tr-PL) reveals that higher bromide compositions and smaller intrinsic nuclei maximize
carrier lifetime. Introduction of bromide also affects absorbance: as bromide composition increases, the bulk bandgap increases, shifting the absorbance band edge into the visible range. While femtosecond transient absorption spectroscopy (TAS) reveals that lifetimes of
carrier trapping and charge injection are independent of bromide content, the lifetime of electron thermalization shortens with added bromide, indicating that bromide introduction improves phonon
transport as well as
carrier transport. With an understanding of intrinsic compositional variations in mixed halide perovskites, the unique
carrier transport properties of these material may be realized in future solar cells and light-emitting diodes.
Advisors/Committee Members: Kane.G.Jennings, Ph.D. (committee member), Rizia Bardhan, Ph.D. (Committee Chair).
Subjects/Keywords: carrier transport; grain morphology; mixed halide perovskite; photoluminescence; transient absorption spectroscopy
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APA (6th Edition):
Talbert, E. M. (2016). Photoexcited Carrier Dynamics in Mixed Halide Perovskites: A Morphological Perspective. (Thesis). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/13468
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Talbert, Eric Michael. “Photoexcited Carrier Dynamics in Mixed Halide Perovskites: A Morphological Perspective.” 2016. Thesis, Vanderbilt University. Accessed March 05, 2021.
http://hdl.handle.net/1803/13468.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Talbert, Eric Michael. “Photoexcited Carrier Dynamics in Mixed Halide Perovskites: A Morphological Perspective.” 2016. Web. 05 Mar 2021.
Vancouver:
Talbert EM. Photoexcited Carrier Dynamics in Mixed Halide Perovskites: A Morphological Perspective. [Internet] [Thesis]. Vanderbilt University; 2016. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/1803/13468.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Talbert EM. Photoexcited Carrier Dynamics in Mixed Halide Perovskites: A Morphological Perspective. [Thesis]. Vanderbilt University; 2016. Available from: http://hdl.handle.net/1803/13468
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
King Abdullah University of Science and Technology
16.
Lardhi, Sheikha F.
Theoretical Investigation of Bismuth-Based Semiconductors for Photocatalytic Applications.
Degree: Physical Science and Engineering (PSE) Division, 2017, King Abdullah University of Science and Technology
URL: http://hdl.handle.net/10754/626307
► Converting solar energy to clean fuel has gained remarkable attention as an emerged renewable energy resource but optimum efficiency in photocatalytic applications has not yet…
(more)
▼ Converting solar energy to clean fuel has gained remarkable attention as an emerged renewable energy resource but optimum efficiency in photocatalytic applications has not yet been reached. One of the dominant factors is designing efficient photocatalytic semiconductors. The research reveals a theoretical investigation of optoelectronic properties of bismuth-based metal oxide and oxysulfide semiconductors using highly accurate first-principles quantum method based on density functional theory along with the range-separated hybrid HSE06 exchange-correlation functional.
First, bismuth titanate compounds including Bi12TiO20, Bi4Ti3O12, and Bi2Ti2O7 were studied in a combined experimental and theoretical approach to prove its photocatalytic activity under UV light. They have unique bismuth layered structure, tunable electronic properties, high dielectric constant and low electron and effective masses in one crystallographic direction allowing for good charge separation and
carrier diffusion properties. The accuracy of the investigation was determined by the good agreement between experimental and theoretical values.
Next, BiVO4 with the highest efficiency for oxygen evolution was investigated. A discrepancy between the experimental and theoretical bandgap was reported and inspired a systematic study of all intrinsic defects of the material and the corresponding effect on the optical and
transport properties. A candidate defective structure was proposed for an efficient photocatalytic performance. To overcome the
carrier transport limitation, a mild hydrogen treatment was also introduced.
Carrier lifetime was enhanced due to a significant reduction of trap-assisted recombination, either via passivation of deep trap states or reduction of trap state density.
Finally, an accurate theoretical approach to design a new family of semiconductors with enhanced optoelectronic properties for water splitting was proposed. We simulated the solid solutions Bi1−xRExCuOS (RE = Y, La, Gd and Lu) from pure BiCuOS to pure RECuOS compositions. Starting from the thermodynamic stability of the solid solution, several properties were computed for each system including bandgaps, dielectric constants, effective masses and exciton binding energies. Several compositions with specific organization and density of Bi and RE atoms, were found to be appropriate for water splitting applications. In General, the presented results give further insights to the experimentalists and recommendations for appropriate future application and defect-design of each material.
Advisors/Committee Members: Cavallo, Luigi (advisor), Takanabe, Kazuhiro (committee member), Nunes, Suzana Pereira (committee member), Adi, Fatwa (committee member).
Subjects/Keywords: Photocatalytic; Semiconductors; DFT; Water Splitting; Optoelectronics; Carrier transport
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APA (6th Edition):
Lardhi, S. F. (2017). Theoretical Investigation of Bismuth-Based Semiconductors for Photocatalytic Applications. (Thesis). King Abdullah University of Science and Technology. Retrieved from http://hdl.handle.net/10754/626307
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Lardhi, Sheikha F. “Theoretical Investigation of Bismuth-Based Semiconductors for Photocatalytic Applications.” 2017. Thesis, King Abdullah University of Science and Technology. Accessed March 05, 2021.
http://hdl.handle.net/10754/626307.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Lardhi, Sheikha F. “Theoretical Investigation of Bismuth-Based Semiconductors for Photocatalytic Applications.” 2017. Web. 05 Mar 2021.
Vancouver:
Lardhi SF. Theoretical Investigation of Bismuth-Based Semiconductors for Photocatalytic Applications. [Internet] [Thesis]. King Abdullah University of Science and Technology; 2017. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10754/626307.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Lardhi SF. Theoretical Investigation of Bismuth-Based Semiconductors for Photocatalytic Applications. [Thesis]. King Abdullah University of Science and Technology; 2017. Available from: http://hdl.handle.net/10754/626307
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
17.
Minnee, Thomas.
Simplifying Semiclassical Electron Transport in Highly Inhomogeneous Fields.
Degree: 2018, Victoria University of Wellington
URL: http://hdl.handle.net/10063/7711
► The Boltzmann transport equation describes the dynamics of electrons via the time evolution of a 6-D scalar field. This semiclassical description is valid in any…
(more)
▼ The Boltzmann
transport equation describes the dynamics of electrons via the time evolution of a 6-D scalar field. This semiclassical description is valid in any device where the external field is relatively constant over the decoherence length. Near equilibrium, the electron distribution can be characterized by a local chemical potential and the lattice temperature, leading to a simplified electron state described by a 3-D scalar field. When external fields are large, this approximation breaks down as the electrons are accelerated far away from a lattice temperature thermal equilibrium. If the external field is quasi-homogeneous, the local field or average kinetic energy can be used to characterize the shape of the distribution function, leading to an electron state described by one or two 3-D scalar fields. However, if the external field is not quasi-homogeneous, there is currently no significant simplification of the Boltzmann
transport equation that is widely accepted as being theoretically sound.
In this thesis, we derive significant simplifications of the semiclassical electron state in devices where the external fields are highly inhomogeneous. We argue that in many materials where the crystal momentum transfer in one scattering time is large, the scattering operator will drive the electron distribution toward a local elastically-constrained quasi-equilibrium, which is characterised by a 4-D scalar field. Furthermore, we argue that in materials where the energy spectrum of scattering is not narrow, electrons in the device are efficiently driven toward one of three quasi-equilibria at different temperatures, one of which is also constrained by an upper limit on the chemical potential. The result is an electron state characterized by four to six 3-D scalar fields, depending on whether electron-electron scattering between two high energy electrons can or cannot be neglected. We present equations of motion for these simplified electron states that can be solved efficiently if the
transport parameters – associated with well-defined weighted integrals of the scattering operator and bandstructure over these quasi-equilibria – are precomputed and stored in a look-up table.
Advisors/Committee Members: Ruck, Ben.
Subjects/Keywords: Non-Equilibrium Electrons; Hot Electrons; Boltzmann Transport Equation; Semiclassical Electron Transport; Non-Equilibrium Carrier Transport; Energy Transport; Hydrodynamic Electron Transport; Macroscopic Electron Transport
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APA (6th Edition):
Minnee, T. (2018). Simplifying Semiclassical Electron Transport in Highly Inhomogeneous Fields. (Doctoral Dissertation). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/7711
Chicago Manual of Style (16th Edition):
Minnee, Thomas. “Simplifying Semiclassical Electron Transport in Highly Inhomogeneous Fields.” 2018. Doctoral Dissertation, Victoria University of Wellington. Accessed March 05, 2021.
http://hdl.handle.net/10063/7711.
MLA Handbook (7th Edition):
Minnee, Thomas. “Simplifying Semiclassical Electron Transport in Highly Inhomogeneous Fields.” 2018. Web. 05 Mar 2021.
Vancouver:
Minnee T. Simplifying Semiclassical Electron Transport in Highly Inhomogeneous Fields. [Internet] [Doctoral dissertation]. Victoria University of Wellington; 2018. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10063/7711.
Council of Science Editors:
Minnee T. Simplifying Semiclassical Electron Transport in Highly Inhomogeneous Fields. [Doctoral Dissertation]. Victoria University of Wellington; 2018. Available from: http://hdl.handle.net/10063/7711
Freie Universität Berlin
18.
Hempel, Hannes.
Untersuchung von Ladungsträgerdynamiken in neuen photovoltaischen Materialien.
Degree: 2020, Freie Universität Berlin
URL: http://dx.doi.org/10.17169/refubium-26512
► Die Entwicklung neuer Materialien für die Photovoltaik bedurfte in der Vergangenheit mehrerer Jahrzehnte. Um jedoch mit dem Fortschritt der etablierten Solarzellentechnologien mitzuhalten und die Entwicklung…
(more)
▼ Die Entwicklung neuer Materialien für die Photovoltaik bedurfte in der Vergangenheit mehrerer Jahrzehnte. Um jedoch mit dem Fortschritt der etablierten Solarzellentechnologien mitzuhalten und die Entwicklung innerhalb der kurzen Finanzierungszeiträume in der Wissenschaft umzusetzen, muss die Forschungszeit deutlich verkürzt werden. Dieses Ziel kann durch zeitaufgelöste Terahertzspektroskopie (TRTS) realisiert werden, welche die Verluste in photovoltaischen Materialien aufzeigt und damit deren Weiterentwicklung steuern kann.
Zuerst werden in dieser Arbeit die Weiterentwicklung von TRTS und deren Anpassung auf die Anforderungen der Photovoltaik beschrieben. In der Veröffentlichung [3] wurde gezeigt, dass TRTS die Ladungsträgermobiltäten und Lebenszeiten in Dünnschichten auf Metallsubstraten messen kann, was der Standardaufbau einer Dünnschicht-Solarzelle ist. Des Weiteren wird in Veröffentlichung [5] gezeigt, dass die Elektronmobilität und die Lochmobilität separat mit TRTS gemessen werden können, wenn die Summe der beiden Mobilitäten, welche standardmäßig mit TRTS gemessen wird, mit einer Analyse der TRTS-Transienten kombiniert wird.
Dann werden die Ladungsträgerdynamiken in einer Cu2ZnSnSe4 Dünnschicht im Detail untersucht, welche während meines Aufenthaltes am National Renewable Energy Laboratory (NREL) in den USA hergestellt wurde und welche deren Weltrekord-Cu2ZnSnSe4-Solarzelle entspricht. Dabei werden die Ladungsträgerabkühlung, deren Trapping, Lokalisation, Rekombination und
Transport untersucht und in ein Gesamtbild integriert. Die Rekombination der photoinduzierten Ladungsträger ist charakterisiert von einer Lebenszeit von 4.4 ns und von einer Oberflächenrekombinationsgeschwindigkeit von 6*104 cm/s [5]. Der Ladungsträgertransort wird von einer Elektronmobilität von 127 cm2/Vs ±25 %, und einer Lochmobilität von 7cm2/Vs ±50 %, beherrscht. Diese Mobilitäten sind durch Ladungsträgerlokalisation auf einem Bereich von ca. 11 nm begrenzt und entsprechen dem
Transport innerhalb der ca. 1 µm großen Körner in dem polykristallinen Cu2ZnSnSe4 [4]. Im Vergleich zu 15 weiteren photovoltaischen Materialien, welche ich als Ko-autor untersucht habe [7-17], ist die Mobilität in Cu2ZnSnSe4 jedoch relativ hoch.
Die Effizienz der Cu2ZnSnSe4 Solarzelle von 7.2 % ist relativ niedrig im Vergleich zu ihrem „Shockley-Queisser-Limit“ und zu anderen weiter entwickelten Materialien. Diese Unterlegenheit wird zum Großteil durch Ladungsträgerrekombination hervorgerufen, welche die Spannung um ca. 239 meV und den Strom um 8.5 mA/cm2 reduziert. Bandtails, welche oft als hauptsächliche Limitation aufgeführt werden, tragen nur zu einem geringeren Verlust in der Spannung von ca. ~105 meV bei und reduzieren die Ladungsträgermobilität auf ein Zehntel. Einen Einfluss auf die Ladungsträgerrekombination konnte jedoch nicht zweifelsfrei nachgewiesen werden. Die Ladungsträgermobilität, die Absorption und die Bandlückenenergie von Cu2ZnSnSe4 sind für Solarzellen bestens geeignet.
Advisors/Committee Members: male (gender), Heyne, Karsten (inspector), Lips, Klaus (firstReferee), Kampfrath, Tobias (furtherReferee).
Subjects/Keywords: solar cell; photovoltaic; terahertz spectroscopy; charge carrier mobility; charge carrier transport; charge carrier recombination; 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik
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APA ·
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MLA ·
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APA (6th Edition):
Hempel, H. (2020). Untersuchung von Ladungsträgerdynamiken in neuen photovoltaischen Materialien. (Thesis). Freie Universität Berlin. Retrieved from http://dx.doi.org/10.17169/refubium-26512
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hempel, Hannes. “Untersuchung von Ladungsträgerdynamiken in neuen photovoltaischen Materialien.” 2020. Thesis, Freie Universität Berlin. Accessed March 05, 2021.
http://dx.doi.org/10.17169/refubium-26512.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hempel, Hannes. “Untersuchung von Ladungsträgerdynamiken in neuen photovoltaischen Materialien.” 2020. Web. 05 Mar 2021.
Vancouver:
Hempel H. Untersuchung von Ladungsträgerdynamiken in neuen photovoltaischen Materialien. [Internet] [Thesis]. Freie Universität Berlin; 2020. [cited 2021 Mar 05].
Available from: http://dx.doi.org/10.17169/refubium-26512.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hempel H. Untersuchung von Ladungsträgerdynamiken in neuen photovoltaischen Materialien. [Thesis]. Freie Universität Berlin; 2020. Available from: http://dx.doi.org/10.17169/refubium-26512
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
19.
Sarupinda, Tendai Ishmael.
Modelling Cellular Permeability via Carrier Mediated Transport.
Degree: 2016, University of Hertfordshire
URL: http://hdl.handle.net/2299/17256
► The relative importance of passive diffusion and carrier mediated transport processes to membrane permeability of drugs is a subject of current debate. Passive diffusion and…
(more)
▼ The relative importance of passive diffusion and carrier mediated transport processes to membrane permeability of drugs is a subject of current debate. Passive diffusion and carrier mediated transport are the two main methods by which drugs permeate the cell membrane. The permeability of molecules through membranes can have an impact on their absorption, distribution, metabolism and excretion (ADME) properties. It is therefore important to be able to predict the extent to which novel molecules can permeate the cell membrane. In vitro models of human intestinal absorption can be used to predict the likelihood of molecules permeating the human intestinal epithelium. Quantitative structure activity relationships (QSAR) techniques explain the relationship between molecular structure and cellular permeability. Current QSAR methods make use of physicochemical and structural property descriptors. These descriptors are able to predict the membrane permeability of molecules via passive diffusion rather than via membrane transporters. The aim of this study was to develop novel descriptors of carrier mediated transport that can be used in the development of QSAR models of permeability. The concept of metabolite likeness was investigated for its utility as a measure of the likelihood of molecules undergoing carrier mediated transport. This investigation found that approved drugs are generally more similar to human endogenous metabolites than molecules found in commercial databases. The use of a protein target prediction tool, PIDGIN, was also investigated. This study found that a relatively small number of membrane transporters that are expressed in caco-2 cells have models available in PIDGIN. New QSAR models of membrane permeability were developed using physicochemical and structural property descriptors and in combination with the novel descriptors of carrier mediated transport. Novel models for predicting drug efflux ratio were developed and perform well in validation tests. Comparisons of predictive performance between QSAR models generated from physicochemical property descriptors alone and in combination with ‘carrier-mediated transport descriptors’ were carried out. The general observation was that the novel descriptors of carrier mediated transport pursued did not significantly improve the predictive performance of models. However, some substructures from the MACCS keys list, which are relevant to protein binding, were found to be important determinants of caco-2 permeability of molecules and could potentially be used to identify molecules that may undergo active transport. The performance of logistic regression classification models of efflux ratio was 88%. Not many studies have developed QSAR models of efflux ratio. This is a relatively novel approach which could be useful in identifying, and thus help to avoid, potential substrates of efflux transporters in drug discovery.
Subjects/Keywords: passive diffusion; carrier mediated transport; ADME properties; QSAR; QSAR models of permeability; drug efflux ratio; carrier mediated transport decsriptors; QSAR models of efflux ratio
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APA ·
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Export
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APA (6th Edition):
Sarupinda, T. I. (2016). Modelling Cellular Permeability via Carrier Mediated Transport. (Masters Thesis). University of Hertfordshire. Retrieved from http://hdl.handle.net/2299/17256
Chicago Manual of Style (16th Edition):
Sarupinda, Tendai Ishmael. “Modelling Cellular Permeability via Carrier Mediated Transport.” 2016. Masters Thesis, University of Hertfordshire. Accessed March 05, 2021.
http://hdl.handle.net/2299/17256.
MLA Handbook (7th Edition):
Sarupinda, Tendai Ishmael. “Modelling Cellular Permeability via Carrier Mediated Transport.” 2016. Web. 05 Mar 2021.
Vancouver:
Sarupinda TI. Modelling Cellular Permeability via Carrier Mediated Transport. [Internet] [Masters thesis]. University of Hertfordshire; 2016. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/2299/17256.
Council of Science Editors:
Sarupinda TI. Modelling Cellular Permeability via Carrier Mediated Transport. [Masters Thesis]. University of Hertfordshire; 2016. Available from: http://hdl.handle.net/2299/17256
NSYSU
20.
Lou, Jyun-Hao.
Study of Resistance Switching Physical Mechanism in Hafnium Oxide Thin Film for Resistive Random Access Memory.
Degree: Master, Physics, 2012, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0714112-162455
► This study is focuses on the resistance switching physical mechanism in hafnium oxide (HfO2) of resistive random access memory (RRAM). HfO2 was taken as the…
(more)
▼ This study is focuses on the resistance switching physical mechanism in hafnium oxide (HfO2) of resistive random access memory (RRAM). HfO2 was taken as the resistance switching layer because HfO2 is extremely compatible with the prevalent complementary metal oxide semiconductor (CMOS) process. The detail physical mechanism is studied by the stable RRAM device (Ti/HfO2/TiN), which is offered from Industrial Technology Research Institute (ITRI). In this study, the resistance switching property of two different forming conductions are compared, including DC sweeping forming and AC pulse forming. In general, forming is a pivotal process in resistance
random access memory (RRAM) to activate the resistance switching behavior. However, over forming would lead to device damage. The overshoot current has been considered as a degradation reason during the forming process. The circuit design is used to obtain the overshoot effect of DC sweeping forming by oscilloscope and semiconductor parameter analyzer system. The quantity of charge through the switching layer has been proven as the key element in the formation of the conduction path. Ultra-fast pulse
forming can form a discontinuous conduction path to reduce the operation power.
Advisors/Committee Members: Ann-Kuo Chu (chair), Zhen-Ming Wu (chair), Simon M. Sze (chair), Ting-Chang Chang (committee member), Dershin Gan (chair).
Subjects/Keywords: Non-volatile memory (NVM); RRAM; Hafnium oxide; Carrier transport mechanism; Resistance switching
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Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lou, J. (2012). Study of Resistance Switching Physical Mechanism in Hafnium Oxide Thin Film for Resistive Random Access Memory. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0714112-162455
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Lou, Jyun-Hao. “Study of Resistance Switching Physical Mechanism in Hafnium Oxide Thin Film for Resistive Random Access Memory.” 2012. Thesis, NSYSU. Accessed March 05, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0714112-162455.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Lou, Jyun-Hao. “Study of Resistance Switching Physical Mechanism in Hafnium Oxide Thin Film for Resistive Random Access Memory.” 2012. Web. 05 Mar 2021.
Vancouver:
Lou J. Study of Resistance Switching Physical Mechanism in Hafnium Oxide Thin Film for Resistive Random Access Memory. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Mar 05].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0714112-162455.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Lou J. Study of Resistance Switching Physical Mechanism in Hafnium Oxide Thin Film for Resistive Random Access Memory. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0714112-162455
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Toronto
21.
Alam, Camille.
Regulation of Folate Transport at the Blood-brain Barrier: A Novel Strategy for the Treatment of Childhood Neurological Disorders Associated with Cerebral Folate Deficiency.
Degree: PhD, 2020, University of Toronto
URL: http://hdl.handle.net/1807/101300
► Folates are crucial for the maintenance of central nervous system homeostasis. Folate transport is mediated by three major pathways, i.e., folate receptor alpha (FRα), proton-coupled…
(more)
▼ Folates are crucial for the maintenance of central nervous system homeostasis. Folate
transport is mediated by three major pathways, i.e., folate receptor alpha (FRα), proton-coupled folate transporter (PCFT) and reduced folate
carrier (RFC), known to be regulated by transcription factors. Brain folate delivery occurs predominantly at the choroid plexus through concerted actions of FRα and PCFT; inactivation of these
transport systems causes cerebral folate deficiency resulting in early childhood neurodegeneration. Increasing brain folate permeability or finding alternative routes for brain folate
transport could lead to therapeutic benefits. The overall goal of this PhD thesis was to characterize folate
transport at the blood-brain barrier (BBB) by examining the role and regulation of folate transporters (i.e., RFC) in brain folate uptake. The objectives of this thesis were to: i) determine RFC functional expression in several in vitro (primary or immortalized cultures of human/rodent brain microvessel endothelial cells) and ex vivo (isolated mouse brain capillaries) BBB models, ii) investigate the role of transcription factors, particularly vitamin D receptor (VDR) and nuclear respiratory factor 1 (NRF-1), in the regulation of RFC in various BBB model systems, and iii) examine in vivo, using Folr1 (FRα) knockout mice, the relative contribution of RFC in overall brain folate uptake. We initially demonstrated that RFC is functionally expressed in in vitro systems representative of human (hCMEC/D3 cells) and rodent (mouse brain capillaries) BBB, and that activation of VDR by its ligand, 1,25-dihydroxyvitamin D3 or calcitriol, significantly increased RFC mRNA and protein expression as well as function. We further showed in vivo, using Folr1 knockout mice, that loss of FRα substantially decreased folate delivery to the brain, but
transport was restored through calcitriol administration. Additionally, we provided in vitro and in vivo evidence that RFC expression and
transport activity is inducible by another transcription factor, NRF-1. These findings demonstrate that augmenting RFC functional expression through interaction with specific transcription factors could constitute a novel strategy for enhancing brain folate delivery. Modulating folate uptake at the BBB may have clinical significance due to the lack of established optimal therapy for neurometabolic disorders caused by loss of FRα or PCFT function.
Advisors/Committee Members: Bendayan, Reina, Pharmaceutical Sciences.
Subjects/Keywords: blood-brain barrier; brain folate transport; folate deficiency; reduced folate carrier; transcription factors; 0572
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Export
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APA (6th Edition):
Alam, C. (2020). Regulation of Folate Transport at the Blood-brain Barrier: A Novel Strategy for the Treatment of Childhood Neurological Disorders Associated with Cerebral Folate Deficiency. (Doctoral Dissertation). University of Toronto. Retrieved from http://hdl.handle.net/1807/101300
Chicago Manual of Style (16th Edition):
Alam, Camille. “Regulation of Folate Transport at the Blood-brain Barrier: A Novel Strategy for the Treatment of Childhood Neurological Disorders Associated with Cerebral Folate Deficiency.” 2020. Doctoral Dissertation, University of Toronto. Accessed March 05, 2021.
http://hdl.handle.net/1807/101300.
MLA Handbook (7th Edition):
Alam, Camille. “Regulation of Folate Transport at the Blood-brain Barrier: A Novel Strategy for the Treatment of Childhood Neurological Disorders Associated with Cerebral Folate Deficiency.” 2020. Web. 05 Mar 2021.
Vancouver:
Alam C. Regulation of Folate Transport at the Blood-brain Barrier: A Novel Strategy for the Treatment of Childhood Neurological Disorders Associated with Cerebral Folate Deficiency. [Internet] [Doctoral dissertation]. University of Toronto; 2020. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/1807/101300.
Council of Science Editors:
Alam C. Regulation of Folate Transport at the Blood-brain Barrier: A Novel Strategy for the Treatment of Childhood Neurological Disorders Associated with Cerebral Folate Deficiency. [Doctoral Dissertation]. University of Toronto; 2020. Available from: http://hdl.handle.net/1807/101300
Vilnius University
22.
Pranaitis, Mindaugas.
Study of carrier transport, trapping and optical
nonlinearities in polymers promising for optoelectronic
applications.
Degree: Dissertation, Materials Engineering, 2012, Vilnius University
URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121001_093403-67813
;
► The main goals of the thesis are advanced characterization by complementary optical and electrical methods of organic semiconductors and the complexes of DNA (deoxyribonucleic acid)…
(more)
▼ The main goals of the thesis are advanced
characterization by complementary optical and electrical methods of
organic semiconductors and the complexes of DNA (deoxyribonucleic
acid) designed with purposefully controllable properties for opto-,
photo- and electrical applications in modern device engineering. It
was demonstrated that the polymer photovoltaic device having an
active layer with donor/transmitter/acceptor structure bearing
polar molecules exhibits the improvement of the external quantum
efficiency associated with the growth of the mobility and reduced
potential barrier for charge injection or extraction from the
electrodes. The impact of the trapping states and their energetical
and spatial distribution on the charge transport properties of
organic semiconductors was revealed by several different
complementary methods. It was demonstrated that carrier trapping is
effectively involved in the charge transport phenomena, depending
on the exciting light spectral range and applied electrical field.
The influence of the hybrid DNA, dyes and silica material complexes
on the optical properties of bio-organic materials was proven.
Later the new cationic surfactant with a high efficiency third
order nonlinear optical properties was demonstrated, which extended
the range of available solvents for DNA
complex.
Disertacija skirta išanalizuoti veiksnius,
įtakojančius krūvio pernašą ir pagavimą šiuolaikinėse organinėse
medžiagose skirtose optoelektronikai, bei ištirti DNR bio-molekulių
įtaką elektrinėms bei optinėms medžiagų savybėms. Eksperimentiškai
nustatyta, kad polimerinės medžiagos turinčios aktyviojo sluoksnio
struktūrą: donoras/pernašos grandis/akceptorius ir chemiškai
sujungtos su polinėmis molekulėmis, pasižymi išorinio kvantinio
našumo padidėjimu, susijusiu su judrio išaugimu ir sumažėjusiu
potencialo barjeru krūvininkų injekcijai ar ekstrakcijai iš
elektrodų. Panaudojant keletą skirtingų, bet papildančių
eksperimentinių metodų, parodyta pagavimo būsenų ir jų energetinio
bei erdvinio pasiskirstymo įtaka krūvininkų pernašos savybėms
organiniuose puslaidininkiuose. Pademonstruota, kad krūvininkų
pagavimas efektyviai lemia krūvio pernašos reiškinius ir priklauso
nuo žadinančios šviesos spektro pločio bei pridėto elektrinio
lauko. Nustatyta DNR komplekso, sudaryto iš dažo ir silikagelio
matricos, įtaka optinėms medžiagos savybėms. Taip pat
pademonstruoti nauji katijoniniai surfaktantai su efektyviomis
trečios eilės netiesinės optikos savybėmis, kurie išplečia
tirpiklių pasirinkimą gaminant DNR
kompleksus.
Advisors/Committee Members: Kažukauskas, Vaidotas (Doctoral dissertation supervisor), Sahraoui, Bouchta (Doctoral dissertation supervisor), Juršėnas, Saulius (Doctoral dissertation committee chair), Aleksiejūnas, Ramūnas (Doctoral dissertation committee member), El-Ghayoury, Adbelkrim (Doctoral dissertation committee member), Migalska-Zalas, Anna (Doctoral dissertation committee member), Tomašiūnas, Roland (Doctoral dissertation committee member), Couris, Stelios (Doctoral dissertation opponent), Kazlauskas, Karolis (Doctoral dissertation opponent).
Subjects/Keywords: Carrier
transport; Trapping; Polymer; DNA complex; Krūvio
pernaša; Pagava; Polimeriniai
puslaidininkiai; DNR
kompleksai
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MLA ·
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APA (6th Edition):
Pranaitis, M. (2012). Study of carrier transport, trapping and optical
nonlinearities in polymers promising for optoelectronic
applications. (Doctoral Dissertation). Vilnius University. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121001_093403-67813 ;
Chicago Manual of Style (16th Edition):
Pranaitis, Mindaugas. “Study of carrier transport, trapping and optical
nonlinearities in polymers promising for optoelectronic
applications.” 2012. Doctoral Dissertation, Vilnius University. Accessed March 05, 2021.
http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121001_093403-67813 ;.
MLA Handbook (7th Edition):
Pranaitis, Mindaugas. “Study of carrier transport, trapping and optical
nonlinearities in polymers promising for optoelectronic
applications.” 2012. Web. 05 Mar 2021.
Vancouver:
Pranaitis M. Study of carrier transport, trapping and optical
nonlinearities in polymers promising for optoelectronic
applications. [Internet] [Doctoral dissertation]. Vilnius University; 2012. [cited 2021 Mar 05].
Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121001_093403-67813 ;.
Council of Science Editors:
Pranaitis M. Study of carrier transport, trapping and optical
nonlinearities in polymers promising for optoelectronic
applications. [Doctoral Dissertation]. Vilnius University; 2012. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121001_093403-67813 ;
Vilnius University
23.
Pranaitis, Mindaugas.
Krūvio pernašos ir pagavos bei optinių
netiesiškumų tyrimas polimerinėse medžiagose, perspektyviose
optoelektronikos taikymams.
Degree: PhD, Materials Engineering, 2012, Vilnius University
URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121001_093418-45447
;
► Disertacija skirta išanalizuoti veiksnius, įtakojančius krūvio pernašą ir pagavimą šiuolaikinėse organinėse medžiagose skirtose optoelektronikai, bei ištirti DNR bio-molekulių įtaką elektrinėms bei optinėms medžiagų savybėms. Eksperimentiškai…
(more)
▼ Disertacija skirta išanalizuoti veiksnius,
įtakojančius krūvio pernašą ir pagavimą šiuolaikinėse organinėse
medžiagose skirtose optoelektronikai, bei ištirti DNR bio-molekulių
įtaką elektrinėms bei optinėms medžiagų savybėms. Eksperimentiškai
nustatyta, kad polimerinės medžiagos turinčios aktyviojo sluoksnio
struktūrą: donoras/pernašos grandis/akceptorius ir chemiškai
sujungtos su polinėmis molekulėmis, pasižymi išorinio kvantinio
našumo padidėjimu, susijusiu su judrio išaugimu ir sumažėjusiu
potencialo barjeru krūvininkų injekcijai ar ekstrakcijai iš
elektrodų. Panaudojant keletą skirtingų, bet papildančių
eksperimentinių metodų, parodyta pagavimo būsenų ir jų energetinio
bei erdvinio pasiskirstymo įtaka krūvininkų pernašos savybėms
organiniuose puslaidininkiuose. Pademonstruota, kad krūvininkų
pagavimas efektyviai lemia krūvio pernašos reiškinius ir priklauso
nuo žadinančios šviesos spektro pločio bei pridėto elektrinio
lauko. Nustatyta DNR komplekso, sudaryto iš dažo ir silikagelio
matricos, įtaka optinėms medžiagos savybėms. Taip pat
pademonstruoti nauji katijoniniai surfaktantai su efektyviomis
trečios eilės netiesinės optikos savybėmis, kurie išplečia
tirpiklių pasirinkimą gaminant DNR
kompleksus.
The main goals of the thesis are advanced
characterization by complementary optical and electrical methods of
organic semiconductors and the complexes of DNA (deoxyribonucleic
acid) designed with purposefully controllable properties for opto-,
photo- and electrical applications in modern device engineering. It
was demonstrated that the polymer photovoltaic device having an
active layer with donor/transmitter/acceptor structure bearing
polar molecules exhibits the improvement of the external quantum
efficiency associated with the growth of the mobility and reduced
potential barrier for charge injection or extraction from the
electrodes. The impact of the trapping states and their energetical
and spatial distribution on the charge transport properties of
organic semiconductors was revealed by several different
complementary methods. It was demonstrated that carrier trapping is
effectively involved in the charge transport phenomena, depending
on the exciting light spectral range and applied electrical field.
The influence of the hybrid DNA, dyes and silica material complexes
on the optical properties of bio-organic materials was proven.
Later the new cationic surfactant with a high efficiency third
order nonlinear optical properties was demonstrated, which extended
the range of available solvents for DNA
complex.
Advisors/Committee Members: Kažukauskas, Vaidotas (Doctoral dissertation supervisor), Sahraoui, Bouchta (Doctoral dissertation supervisor), Juršėnas, Saulius (Doctoral dissertation committee chair), Aleksiejūnas, Ramūnas (Doctoral dissertation committee member), El-Ghayoury, Abdelkrim (Doctoral dissertation committee member), Migalska-Zalas, Anna (Doctoral dissertation committee member), Tomašiūnas, Roland (Doctoral dissertation committee member), Couris, Stelios (Doctoral dissertation opponent), Kazlauskas, Karolis (Doctoral dissertation opponent).
Subjects/Keywords: Kšūvio
pernaša; Pagava; Polimeriniai
puslaidininkiai; DNR
kompleksai; Carrier
transport; Trapping; Polymer; DNA comlex
Record Details
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Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Pranaitis, M. (2012). Krūvio pernašos ir pagavos bei optinių
netiesiškumų tyrimas polimerinėse medžiagose, perspektyviose
optoelektronikos taikymams. (Doctoral Dissertation). Vilnius University. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121001_093418-45447 ;
Chicago Manual of Style (16th Edition):
Pranaitis, Mindaugas. “Krūvio pernašos ir pagavos bei optinių
netiesiškumų tyrimas polimerinėse medžiagose, perspektyviose
optoelektronikos taikymams.” 2012. Doctoral Dissertation, Vilnius University. Accessed March 05, 2021.
http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121001_093418-45447 ;.
MLA Handbook (7th Edition):
Pranaitis, Mindaugas. “Krūvio pernašos ir pagavos bei optinių
netiesiškumų tyrimas polimerinėse medžiagose, perspektyviose
optoelektronikos taikymams.” 2012. Web. 05 Mar 2021.
Vancouver:
Pranaitis M. Krūvio pernašos ir pagavos bei optinių
netiesiškumų tyrimas polimerinėse medžiagose, perspektyviose
optoelektronikos taikymams. [Internet] [Doctoral dissertation]. Vilnius University; 2012. [cited 2021 Mar 05].
Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121001_093418-45447 ;.
Council of Science Editors:
Pranaitis M. Krūvio pernašos ir pagavos bei optinių
netiesiškumų tyrimas polimerinėse medžiagose, perspektyviose
optoelektronikos taikymams. [Doctoral Dissertation]. Vilnius University; 2012. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121001_093418-45447 ;
Mykolas Romeris University
24.
Abromavičius,
Giedrius.
Vežėjo ir ekspeditoriaus sutartiniai
santykiai.
Degree: Master, Law, 2010, Mykolas Romeris University
URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100224_113248-44648
;
► Magistro baigiamajame darbe analizuojamas vežėjo ir ekspeditoriaus sutartinių santykių teisinis reglamentavimas, šios temos aktualumą lemia tai, kad transporto sritis yra viena iš prioritetinių šalies ūkio…
(more)
▼ Magistro baigiamajame darbe analizuojamas
vežėjo ir ekspeditoriaus sutartinių santykių teisinis
reglamentavimas, šios temos aktualumą lemia tai, kad transporto
sritis yra viena iš prioritetinių šalies ūkio sričių,
ekspeditoriaus vaidmuo krovinių gabenimo procese pastaruoju metu
labai išaugo, o teisiniai santykiai, susiklostantys tarp vežėjo ir
ekspeditoriaus nei teisinėje literatūroje, nei teismų praktikoje
nebuvo analizuojami. Autorius kelia mokslinę problemą, kad
ekspeditoriaus padėties teisinio reglamentavimo krovinių gabenimo
procese neaiškumas neigiamai įtakoja vežėjo ir ekspeditoriaus
teisių apsaugą bei gynimą. Todėl šiuo tyrimu siekiama nustatyti, ar
vežėjo ir ekspeditoriaus sutartinių santykių teisinis
reglamentavimas Lietuvoje atitinka rinkos poreikius. Magistro
baigiamajame darbe keliami uždaviniai įvertinti, ar teisinis
reglamentavimas Lietuvoje nepagrįstai nevaržo ekspeditoriaus teisės
sudaryti krovinių vežimo sutarties savo arba užsakovo vardu, taip
pat įvertinti vežėjo ir ekspeditoriaus teisinę padėtį, kai
ekspeditorius vežimo sutartį sudaro savo arba užsakovo vardu,
palyginti Lietuvoje galiojantį vežėjo bei ekspeditoriaus sutartinių
santykių teisinį reglamentavimą su galiojančiu Vokietijoje, aptarti
krovinių vežimo dokumentų reikšmę vežėjo ir ekspeditoriaus
sutartiniams santykiams, taip pat įvertinti rekomendacinio pobūdžio
teisės normų (angl. soft law) įtaką vežėjo ir ekspeditoriaus
sutartiniams santykiams. Šiuo tyrimu autorius siekia pagrįsti (arba
paneigti)... [toliau žr. visą tekstą]
The subject of the Master thesis is the
legal regulation concerning contractual relations between the
carrier and forwarder. The relevance of the subject determines the
fact, that transport branch has a priority status among other
economy branches, the role of the forwarder has increased
significant, and the legal relations between these characters were
never an object of legal studies. The scholar question of this
Master thesis is that the legal regulation of forwarders activity
in the process of the carriage of goods is not explicit and clear
enough and it affects the protection of the rights of the carrier
and the forwarder. Therefore the purpose of this Master thesis is
defining if the legal regulation of the contractual relations
between the carrier and forwarder accords the demands of the
market. The Master thesis has a task to define if the legal
regulation do not straitens the right to sign the contract of
carriage of goods in the name of the forwarder or the name of his
customer, to study the legal character of a carrier and a
forwarder, in the case of signing the agreement in his name or the
name of the customer, to compare the legal regulation applicable in
Lithuania and Germany. In the thesis we also examine the papers of
the carriage of goods, the soft law legal acts and their influence
to the contractual relations. The research must validate or deny
the hypothesis that the legal regulation in Lithuania grants an
effective protection of the rights of carrier and... [to full
text]
Advisors/Committee Members: Sinkevičius, Edvardas (Master’s thesis supervisor), Karulaitytė-Kvainauskienė, Inga (Master’s thesis reviewer), Baranauskas, Egidijus (Master’s degree committee chair), Novikovienė, Lina (Master’s degree committee member), Švirinas, Daivis (Master’s degree committee member), Talutis , Tomas (Master’s degree committee member), Verseckas , Vincas (Master’s degree committee member).
Subjects/Keywords: Transporto
teisė; Vežėjas; Ekspeditorius; Sutartis; Teisinis
reglamentavimas; Transport law; Carrier; Forwarder; Contract; Legal
regulation
Record Details
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Record Details
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Abromavičius,
Giedrius. (2010). Vežėjo ir ekspeditoriaus sutartiniai
santykiai. (Masters Thesis). Mykolas Romeris University. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100224_113248-44648 ;
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Chicago Manual of Style (16th Edition):
Abromavičius,
Giedrius. “Vežėjo ir ekspeditoriaus sutartiniai
santykiai.” 2010. Masters Thesis, Mykolas Romeris University. Accessed March 05, 2021.
http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100224_113248-44648 ;.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
MLA Handbook (7th Edition):
Abromavičius,
Giedrius. “Vežėjo ir ekspeditoriaus sutartiniai
santykiai.” 2010. Web. 05 Mar 2021.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Vancouver:
Abromavičius,
Giedrius. Vežėjo ir ekspeditoriaus sutartiniai
santykiai. [Internet] [Masters thesis]. Mykolas Romeris University; 2010. [cited 2021 Mar 05].
Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100224_113248-44648 ;.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Council of Science Editors:
Abromavičius,
Giedrius. Vežėjo ir ekspeditoriaus sutartiniai
santykiai. [Masters Thesis]. Mykolas Romeris University; 2010. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100224_113248-44648 ;
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Brno University of Technology
25.
Valenta, Martin.
Návrh optimalizace logistiky a skladového hospodářství v podniku: The Proposal for Optimization of Logistic and Warehousing.
Degree: 2018, Brno University of Technology
URL: http://hdl.handle.net/11012/83584
► The Bachelor thesis „The proposal for optimalization of logistics and warehousing“ aims to optimize supply and transportation process, while using ABC analysis and procurement of…
(more)
▼ The Bachelor thesis „The proposal for optimalization of logistics and warehousing“ aims to optimize supply and transportation process, while using ABC analysis and procurement of a new vehicle. The main objective of this thesis is to improve the process from a financial and time efficiency perspective. First chapter contains theoretical knowledge of logistics,
transport and warehouse management, that will be used to analyze the current situation and subsequently propose improvements to the waknesses of these processes.
Advisors/Committee Members: Luňáček, Jiří (advisor), Poláček, Tomáš (referee).
Subjects/Keywords: logistika; doprava; dopravca; vozidlo; riadenie zásob; výrobok; logistics; transport; carrier; vehicle; warehouse management; product
Record Details
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APA ·
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MLA ·
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APA (6th Edition):
Valenta, M. (2018). Návrh optimalizace logistiky a skladového hospodářství v podniku: The Proposal for Optimization of Logistic and Warehousing. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/83584
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Valenta, Martin. “Návrh optimalizace logistiky a skladového hospodářství v podniku: The Proposal for Optimization of Logistic and Warehousing.” 2018. Thesis, Brno University of Technology. Accessed March 05, 2021.
http://hdl.handle.net/11012/83584.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Valenta, Martin. “Návrh optimalizace logistiky a skladového hospodářství v podniku: The Proposal for Optimization of Logistic and Warehousing.” 2018. Web. 05 Mar 2021.
Vancouver:
Valenta M. Návrh optimalizace logistiky a skladového hospodářství v podniku: The Proposal for Optimization of Logistic and Warehousing. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/11012/83584.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Valenta M. Návrh optimalizace logistiky a skladového hospodářství v podniku: The Proposal for Optimization of Logistic and Warehousing. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/83584
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Montana
26.
Casady, Lucas A.
Asymptotic reductions of a model describing facilitated diffusion in membrane transport.
Degree: MS, 2004, University of Montana
URL: https://scholarworks.umt.edu/etd/6639
Subjects/Keywords: Biological transport.; Carrier proteins Mathematical models.
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Casady, L. A. (2004). Asymptotic reductions of a model describing facilitated diffusion in membrane transport. (Masters Thesis). University of Montana. Retrieved from https://scholarworks.umt.edu/etd/6639
Chicago Manual of Style (16th Edition):
Casady, Lucas A. “Asymptotic reductions of a model describing facilitated diffusion in membrane transport.” 2004. Masters Thesis, University of Montana. Accessed March 05, 2021.
https://scholarworks.umt.edu/etd/6639.
MLA Handbook (7th Edition):
Casady, Lucas A. “Asymptotic reductions of a model describing facilitated diffusion in membrane transport.” 2004. Web. 05 Mar 2021.
Vancouver:
Casady LA. Asymptotic reductions of a model describing facilitated diffusion in membrane transport. [Internet] [Masters thesis]. University of Montana; 2004. [cited 2021 Mar 05].
Available from: https://scholarworks.umt.edu/etd/6639.
Council of Science Editors:
Casady LA. Asymptotic reductions of a model describing facilitated diffusion in membrane transport. [Masters Thesis]. University of Montana; 2004. Available from: https://scholarworks.umt.edu/etd/6639
University of Oklahoma
27.
Rassel, SM Shazzad.
CHARACTERIZATION AND DEVELOPMENT OF SEMICONDUCTOR CASCADE DEVICES.
Degree: PhD, 2018, University of Oklahoma
URL: http://hdl.handle.net/11244/299799
► Interband cascade lasers (ICLs) are efficient source of mid-infrared light for many applications that require low power consumption and continuous wave (cw) operation at room…
(more)
▼ Interband cascade lasers (ICLs) are efficient source of mid-infrared light for many applications that require low power consumption and continuous wave (cw) operation at room temperature. In the last decade, remarkable progress has been made in developing ICLs on GaSb substrates, mainly in the 3 to 4μm wavelength region, but room temperature (RT) cw operation at the longer wavelength region beyond 6μm has not been achieved. Based on the characterization of earlier grown ICLs, InAs-based plasmon-waveguide ICLs were designed and fabricated to achieve improved performance near or beyond 6μm. These lasers were extensively characterized, investigated and analyzed in terms of various performance features and compared to other state-of-the-art lasers. One laser demonstrated a threshold current density (Jth) as low as 333A/cm2 at 300K for emission at 6003nm. This Jth is the lowest ever reported for a mid-infrared semiconductor laser in this wavelength range. These ICLs lased at temperatures up to 293K in cw mode and up to 357K in pulsed mode. A narrow-ridge laser operated in cw at 293K with a threshold input power as low as 0.66W, and was able to generate 3mW/facet output power at 280K, without accounting for beam divergence loss. These results are very encouraging examples of efficient ICLs at long wavelengths with low power consumption.
To investigate the quality of the laser beam of these InAs-based ICLs, the far-field patterns were studied and analyzed for both broad-area and narrow-ridge geometries. In the growth direction, near diffraction-limited single-mode beams were obtained. As expected, multi-mode lasing was observed in the lateral direction because the stripe widths were much longer than the lasing wavelength. Also, as expected, these multi-modes were found to be dependent on applied bias current. These far-field profiles were compared to simulations and reasonable agreement was obtained. Beam propagation factors were plotted against the laser stripe sizes and the values were found close to unity along the growth direction -indicating better beam quality, and below 18 along lateral direction -indicating room for improvement. This methodology can be applied to previously fabricated ICLs to better understand their beam optics.
In a related research project, single mode operation of ICLs was obtained by designing and fabricating a cleaved-coupled-cavity (CCC) laser. In our case, rather than cleaving to fabricate two cavities, we successfully demonstrated two ion-milling recipes, using a focused ion beam (FIB) to fabricate our CCC lasers. One recipe separated the two sections of CCC lasers electrically and the other recipe milled a narrow slot (air-gap) into the mesa. Based on the optical power from the fabricated cavities, the quality of the milled facet was found to be comparable to that of an as-cleaved facet. This CCC laser demonstrated a single mode operation at ~3109nm at room temperature with a reasonable side-mode-suppression-ratio (SMSR) of 24dB. A continuous tuning range of ~1.1nm and…
Advisors/Committee Members: Yang, Rui (advisor), Johnson, Matthew (committee member), Santos, Michael (committee member), Sigmarsson, Hjalti (committee member), Fulton, Caleb (committee member).
Subjects/Keywords: interband cascade laser; high-frequency; coupled cavity laser; far field beam; carrier transport
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Rassel, S. S. (2018). CHARACTERIZATION AND DEVELOPMENT OF SEMICONDUCTOR CASCADE DEVICES. (Doctoral Dissertation). University of Oklahoma. Retrieved from http://hdl.handle.net/11244/299799
Chicago Manual of Style (16th Edition):
Rassel, SM Shazzad. “CHARACTERIZATION AND DEVELOPMENT OF SEMICONDUCTOR CASCADE DEVICES.” 2018. Doctoral Dissertation, University of Oklahoma. Accessed March 05, 2021.
http://hdl.handle.net/11244/299799.
MLA Handbook (7th Edition):
Rassel, SM Shazzad. “CHARACTERIZATION AND DEVELOPMENT OF SEMICONDUCTOR CASCADE DEVICES.” 2018. Web. 05 Mar 2021.
Vancouver:
Rassel SS. CHARACTERIZATION AND DEVELOPMENT OF SEMICONDUCTOR CASCADE DEVICES. [Internet] [Doctoral dissertation]. University of Oklahoma; 2018. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/11244/299799.
Council of Science Editors:
Rassel SS. CHARACTERIZATION AND DEVELOPMENT OF SEMICONDUCTOR CASCADE DEVICES. [Doctoral Dissertation]. University of Oklahoma; 2018. Available from: http://hdl.handle.net/11244/299799
University of Saskatchewan
28.
Simonson, Blaine M.
X-ray Induced Effects and Charge Collection Efficiency in Stabilized Amorphous Selenium Based X-ray Photoconductors.
Degree: 2020, University of Saskatchewan
URL: http://hdl.handle.net/10388/12912
► Stabilized amorphous selenium (a-Se) photoconductive layers are currently used in most modern flat panel digital x-ray image detectors for mammography. The performance of these detectors…
(more)
▼ Stabilized amorphous selenium (a-Se) photoconductive layers are currently used in most modern flat panel digital x-ray image detectors for mammography. The performance of these detectors depends, in part, on the electronic
transport properties of the a-Se photoconductive layer. The
transport properties consist of the charge
carrier drift mobility μ and deep trapping time (lifetime) τ, of both electrons and holes in the photoconductive layer, which determine the x-ray sensitivity of the x-ray image detector through the charge collection efficiency. The product of a carrier’s drift mobility, lifetime, and the applied electric field μτF is the
carrier schubweg, which refers to the average distance a charge
carrier can travel in the photoconductive layer before it becomes trapped. Trapped carriers are not collected and cause a decrease in the charge collection efficiency and the x-ray sensitivity. The time-of-flight (TOF) and the interrupted-field time-of-flight (IFTOF) experimental techniques are used to measure the
transport properties of both holes and electrons in a-Se layers. The TOF transient photoconductivity technique measures the transient photocurrent response of photoinjected charge carriers as they travel through a highly resistive sample under the influence of an electric field. The time width of the TOF pulse is directly related to the drift mobility of the
carrier. The IFTOF technique interrupts the drift of the charge carriers through the sample by temporarily removing the electric field, which allows carriers to interact with deep traps in the bulk. The number of free carriers in the bulk decreases over the interruption time. When the electric field is reapplied the remaining free carriers resume drifting through the sample. The ratio of the recovered charge carriers before and after the interruption is related to the charge
carrier deep trapping time (lifetime).
The effects of high dose x-ray radiation of a-Se on the
transport properties is examined. Stabilized amorphous selenium films, with a nominal composition of a-Se: 0.3% As + 10 ppm Cl, were fabricated through evaporation techniques. X-ray radiation was provided by an Al-filtered tungsten target x-ray tube. The absorbed dose rate was varied from 0.12 Gy/s - 2.5 Gy/s, the x-ray energy was varied from 50 kVp - 90 kVp (corresponding to a mean photon energy from 31.9 keV – 44.7 keV), and the applied electric field was varied from 0 V/μm - 10 V/μm. X-ray irradiation had no effect on the drift mobility of either holes or electrons. In the absence of an applied electric field it was found, for both electrons and holes, that reduction in the electron and hole lifetimes depended only on the total or accumulated dose D, absorbed in a-Se, and not on the rate of dose delivery or on the x-ray energy over the ranges examined. This allows the reduction in the
carrier lifetimes to be simply modeled by τo/τ = 1 + AD, where τo is the lifetime before x-ray exposure (equilibrium lifetime), τ is the lifetime after exposure, D is the total absorbed dose, and A is a…
Advisors/Committee Members: Kasap, Safa, Johanson, Robert, Dinh, Anh, Chen, Li, Bourassa, Adam.
Subjects/Keywords: Amorphous Selenium; X-ray Detector; Charge Transport; Charge Carrier Lifetime; X-ray damage to Charge Transport; Charge Collection Efficiency
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APA (6th Edition):
Simonson, B. M. (2020). X-ray Induced Effects and Charge Collection Efficiency in Stabilized Amorphous Selenium Based X-ray Photoconductors. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/12912
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Simonson, Blaine M. “X-ray Induced Effects and Charge Collection Efficiency in Stabilized Amorphous Selenium Based X-ray Photoconductors.” 2020. Thesis, University of Saskatchewan. Accessed March 05, 2021.
http://hdl.handle.net/10388/12912.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Simonson, Blaine M. “X-ray Induced Effects and Charge Collection Efficiency in Stabilized Amorphous Selenium Based X-ray Photoconductors.” 2020. Web. 05 Mar 2021.
Vancouver:
Simonson BM. X-ray Induced Effects and Charge Collection Efficiency in Stabilized Amorphous Selenium Based X-ray Photoconductors. [Internet] [Thesis]. University of Saskatchewan; 2020. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10388/12912.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Simonson BM. X-ray Induced Effects and Charge Collection Efficiency in Stabilized Amorphous Selenium Based X-ray Photoconductors. [Thesis]. University of Saskatchewan; 2020. Available from: http://hdl.handle.net/10388/12912
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of New Mexico
29.
Casias, Lilian K.
Transport in Mid-Wavelength Infrared (MWIR) p- and n-type InAsSb and InAs/InAsSb Type-II Strained Layer Superlattices (T2SLs) for infrared detection.
Degree: Electrical and Computer Engineering, 2019, University of New Mexico
URL: https://digitalrepository.unm.edu/ece_etds/456
► In order to tackle vertical transport, lateral transport must be better understood. There are added challenges to determining the lateral bulk carrier concentration in…
(more)
▼ In order to tackle vertical
transport, lateral
transport must be better understood. There are added challenges to determining the lateral bulk
carrier concentration in narrow bandgap materials due to the potential for electron accumulation at the surface of the material and at its interface with the layer grown directly below it. Electron accumulation layers form high conductance electron channels that can dominate both resistivity and Hall-Effect
transport measurements. Therefore, to correctly determine the lateral bulk concentration and mobility, temperature- and magnetic-field-dependent
transport measurements in conjunction with Multi-
Carrier Fit (MCF) analysis were utilized on a series of
p-doped InAs
0.91Sb
0.09 samples on GaSb substrates. The samples are etched to different thicknesses, and variable-field measurements are utilized to assist in confirming whether a
carrier species represents bulk, interface or surface conduction.
Secondly,
n-type temperature- and magnetic-field dependent measurements on InAsSb and InAs/InAsSb T2SLs materials were performed to extract the lateral
transport properties for all the carriers present in each sample under two different doping concentrations (Non-Intentionally Doped or
NID and Silicon-doped). For lateral
transport measurements, NRL MULTIBANDS® simulations were utilized to extract and compare the interface carriers for each sample. Lastly, substrate-removed, Metal-Semiconductor-Metal (MSM) devices were fabricated to extract vertical
transport mobilities, while conventional Van der Pauw structures were used for lateral measurements. To accurately determine the lateral and vertical
transport properties in the presence of multiple
carrier species, Multi-
Carrier Fit (MCF) and High-Resolution Mobility Spectrum Analysis (HR-MSA) were employed.
Advisors/Committee Members: Dr. Ganesh Balakrishnan, Dr. Francesca Cavallo, Dr. Sanjay Krishna, Dr. Christian Morath.
Subjects/Keywords: Magneto-Resistance; Multi-Carrier Analysis; Substrate Removal; Vertical transport; Lateral Transport; Infrared Detectors; Electrical and Computer Engineering
Record Details
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Casias, L. K. (2019). Transport in Mid-Wavelength Infrared (MWIR) p- and n-type InAsSb and InAs/InAsSb Type-II Strained Layer Superlattices (T2SLs) for infrared detection. (Doctoral Dissertation). University of New Mexico. Retrieved from https://digitalrepository.unm.edu/ece_etds/456
Chicago Manual of Style (16th Edition):
Casias, Lilian K. “Transport in Mid-Wavelength Infrared (MWIR) p- and n-type InAsSb and InAs/InAsSb Type-II Strained Layer Superlattices (T2SLs) for infrared detection.” 2019. Doctoral Dissertation, University of New Mexico. Accessed March 05, 2021.
https://digitalrepository.unm.edu/ece_etds/456.
MLA Handbook (7th Edition):
Casias, Lilian K. “Transport in Mid-Wavelength Infrared (MWIR) p- and n-type InAsSb and InAs/InAsSb Type-II Strained Layer Superlattices (T2SLs) for infrared detection.” 2019. Web. 05 Mar 2021.
Vancouver:
Casias LK. Transport in Mid-Wavelength Infrared (MWIR) p- and n-type InAsSb and InAs/InAsSb Type-II Strained Layer Superlattices (T2SLs) for infrared detection. [Internet] [Doctoral dissertation]. University of New Mexico; 2019. [cited 2021 Mar 05].
Available from: https://digitalrepository.unm.edu/ece_etds/456.
Council of Science Editors:
Casias LK. Transport in Mid-Wavelength Infrared (MWIR) p- and n-type InAsSb and InAs/InAsSb Type-II Strained Layer Superlattices (T2SLs) for infrared detection. [Doctoral Dissertation]. University of New Mexico; 2019. Available from: https://digitalrepository.unm.edu/ece_etds/456
Arizona State University
30.
Lin, Zhiyuan.
Study of Minority Carrier Lifetime and Transport in
InAs/InAsSb type-II Superlattices Using a Real-Time Baseline
Correction Method.
Degree: Electrical Engineering, 2016, Arizona State University
URL: http://repository.asu.edu/items/40750
Subjects/Keywords: Engineering; Electrical engineering; Carrier Lifetime; Carrier Transport; InAs/InAsSb Type-II Superlattice
Record Details
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Record Details
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Cite
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lin, Z. (2016). Study of Minority Carrier Lifetime and Transport in
InAs/InAsSb type-II Superlattices Using a Real-Time Baseline
Correction Method. (Doctoral Dissertation). Arizona State University. Retrieved from http://repository.asu.edu/items/40750
Chicago Manual of Style (16th Edition):
Lin, Zhiyuan. “Study of Minority Carrier Lifetime and Transport in
InAs/InAsSb type-II Superlattices Using a Real-Time Baseline
Correction Method.” 2016. Doctoral Dissertation, Arizona State University. Accessed March 05, 2021.
http://repository.asu.edu/items/40750.
MLA Handbook (7th Edition):
Lin, Zhiyuan. “Study of Minority Carrier Lifetime and Transport in
InAs/InAsSb type-II Superlattices Using a Real-Time Baseline
Correction Method.” 2016. Web. 05 Mar 2021.
Vancouver:
Lin Z. Study of Minority Carrier Lifetime and Transport in
InAs/InAsSb type-II Superlattices Using a Real-Time Baseline
Correction Method. [Internet] [Doctoral dissertation]. Arizona State University; 2016. [cited 2021 Mar 05].
Available from: http://repository.asu.edu/items/40750.
Council of Science Editors:
Lin Z. Study of Minority Carrier Lifetime and Transport in
InAs/InAsSb type-II Superlattices Using a Real-Time Baseline
Correction Method. [Doctoral Dissertation]. Arizona State University; 2016. Available from: http://repository.asu.edu/items/40750
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Open Access Theses and Dissertations
