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University of Helsinki
1.
Avchaciov, Konstantin.
Atomistic studies of structural changes in metallic glasses and thin films under far-from-equilibrium conditions.
Degree: Department of Physics, Division of Materials Physics, 2015, University of Helsinki
URL: http://hdl.handle.net/10138/157009 
► Rapid technological development motivates the research community to find out new processing technologies for producing materials with unique properties. Production of new materials or improving…
(more)
▼ Rapid technological development motivates the research community to find out new processing technologies for producing materials with unique properties. Production of new materials or improving the existing ones requires development of new methods, which sometimes involves processing under far-from-equilibrium conditions. Usually underlying physical processes, taking place during such processing, are not well known. Understanding them is the key to the enhancement of processing methods. This thesis covers only a tiny part of a huge number of problems existing in the material science. The studies done here could be useful for solving the problem of metallic glass brittleness and for further development of the ion beam technology for controlling magnetic properties of thin films. Discussion on the pathway of the self-propagating high-temperature synthesis in multilayer metallic films was also included in the thesis
We studied the effect of ion irradiation on Cu64Zr36 metallic glass by means of molecular dynamics (MD). Low-energy ion irradiation of metallic glass produces damage zones, where the local structure of glass differs from the structure of pristine glass. These changes are independent on ion energy and flux due to the possibility of partial recovery during cascade relaxation. However, the size of the damage zones could be controlled by varying the dose of ions. This makes possible the production of either isolated damaged regions or homogeneously damaged glass. We showed that mechanical properties of the glass strongly depend on the local structure. In damage zones, the specific arrangement of the structural units is destroyed. This promotes the formation of many shear transformation zones in the damaged area, when a mechanical load is applied. It results in enhanced plasticity of the irradiated glass. Our research indicates that ion irradiation could be used for the softening of brittle metallic glasses for preventing formation of cracks in them.
Atomistic studies of the reaction pathway in the multilayer Ru/Al films were done to interpret the results from X-ray diffraction measurements. The MD simulations covered the first nanoseconds; at this timescale, no information about the reaction pathway could be obtained from the experimental methods. The MD simulations demonstrated simultaneous Ru dissolution into liquid Al and B2 RuAl phase nucleation at the Ru/Al interface. Our results agreed well with experimental observations, and, moreover, helped to refine understanding of the X-Ray diffractograms.
We also studied structural modifications of Pt/Co/Pt trilayer films, which could explain appearance of the perpendicular magnetic anisotropy (PMA) after irradiation with Ga+ ions. Molecular dynamics and Monte Carlo (MD-MC) simulations were performed to find changes in the long range order and short range order, associated with ion irradiation. The results of our simulations showed that the separated metal layers containing Pt and Co were intermixed and formed the new solid solution. This solution was…
Subjects/Keywords: material physics; material physics
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APA (6th Edition):
Avchaciov, K. (2015). Atomistic studies of structural changes in metallic glasses and thin films under far-from-equilibrium conditions. (Doctoral Dissertation). University of Helsinki. Retrieved from http://hdl.handle.net/10138/157009
Chicago Manual of Style (16th Edition):
Avchaciov, Konstantin. “Atomistic studies of structural changes in metallic glasses and thin films under far-from-equilibrium conditions.” 2015. Doctoral Dissertation, University of Helsinki. Accessed March 02, 2021.
http://hdl.handle.net/10138/157009.
MLA Handbook (7th Edition):
Avchaciov, Konstantin. “Atomistic studies of structural changes in metallic glasses and thin films under far-from-equilibrium conditions.” 2015. Web. 02 Mar 2021.
Vancouver:
Avchaciov K. Atomistic studies of structural changes in metallic glasses and thin films under far-from-equilibrium conditions. [Internet] [Doctoral dissertation]. University of Helsinki; 2015. [cited 2021 Mar 02].
Available from: http://hdl.handle.net/10138/157009.
Council of Science Editors:
Avchaciov K. Atomistic studies of structural changes in metallic glasses and thin films under far-from-equilibrium conditions. [Doctoral Dissertation]. University of Helsinki; 2015. Available from: http://hdl.handle.net/10138/157009
2.
Nelson, Jessica Lynne.
Detecting Dutchness: Global Identities in the
Seventeenth-Century Dutch Atlantic.
Degree: Department of Anthropology, 2018, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:792880/
► One of the early powers in the development of global trade, the Dutch in the 16th and 17th centuries carried trade goods from Africa, South…
(more)
▼ One of the early powers in the development of global
trade, the Dutch in the 16th and 17th centuries carried trade goods
from Africa, South America, the Caribbean, China, Russia, and many
European polities on their ships. Distinct from the imperially
driven motives of the English, Spanish, and Portuguese, Dutch
colonial expansion and trade was the provenance of individual
merchants and private companies, such as the Dutch East and West
India Companies, and were only provisionally governed by the States
General. As a result of the economic motives of these companies,
the Dutch colonies were radically different from the settler
colonies of their contemporaries. As places where commerce trumped
concerns for self-sufficiency and religious conversion, Dutch
colonies have long been recognized as some of the most diverse in
the colonial era. I study the
material culture of the Dutch West
India Company colonies of New Netherland and Caribbean St.
Eustatius, in conjunction with that of the Dutch Republic to
explore how these communities built upon a wide range of ethnic and
cultural influences to form a globally conscious Dutch identity
that was both widely shared and distinctly local during the Dutch
Golden Age. This dissertation contributes to the scholarship on
identity formation, colonialism, cosmopolitanism, and globalism,
merging dialogues occurring in historical archaeology, Caribbean
archaeology, and post medieval archaeology to present a more
comprehensive view of the 17th century Dutch experience and
identity and further archaeological engagement with the question of
colonial identity among the colonizers. Building on recent trends
in the archaeological study of identity (e.g. Voss 2008), this
research forwards the dialogue around colonial identities by also
looking at what constitutes a European identity in the 17th
century. A focus on the WIC colonies offers a strong point of
comparison with other colonial enterprises while also opening a
window onto one of the first truly global trading companies.
Analysis of these 17th century examples offers a diachronic
comparison for modern communities.
Advisors/Committee Members: Rubertone, Patricia (Advisor), Preucel, Robert (Advisor), Simmons, William (Reader), Huey, Paul (Reader).
Subjects/Keywords: Material culture
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APA ·
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CSE |
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Manager
APA (6th Edition):
Nelson, J. L. (2018). Detecting Dutchness: Global Identities in the
Seventeenth-Century Dutch Atlantic. (Thesis). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:792880/
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):
Nelson, Jessica Lynne. “Detecting Dutchness: Global Identities in the
Seventeenth-Century Dutch Atlantic.” 2018. Thesis, Brown University. Accessed March 02, 2021.
https://repository.library.brown.edu/studio/item/bdr:792880/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Nelson, Jessica Lynne. “Detecting Dutchness: Global Identities in the
Seventeenth-Century Dutch Atlantic.” 2018. Web. 02 Mar 2021.
Vancouver:
Nelson JL. Detecting Dutchness: Global Identities in the
Seventeenth-Century Dutch Atlantic. [Internet] [Thesis]. Brown University; 2018. [cited 2021 Mar 02].
Available from: https://repository.library.brown.edu/studio/item/bdr:792880/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Nelson JL. Detecting Dutchness: Global Identities in the
Seventeenth-Century Dutch Atlantic. [Thesis]. Brown University; 2018. Available from: https://repository.library.brown.edu/studio/item/bdr:792880/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
3.
Liu, Hanyang.
Auranofin releasing antibacterial and antibiofilm
polyurethane intravascular catheter coatings.
Degree: Biomedical Engineering, 2018, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:792789/
► Intravascular catheter related bloodstream infections are a leading cause of hospital-acquired nosocomial infections all over the world, which result in not only the burden of…
(more)
▼ Intravascular catheter related bloodstream infections
are a leading cause of hospital-acquired nosocomial infections all
over the world, which result in not only the burden of cost and
morbidity for patients but also the over-consumption of medical
resource for hospitals or health care organizations. In this study,
a novel auranofin releasing antibacterial and antibiofilm
polyurethane intravascular coatings were developed and investigated
to prevent catheter related blood stream infections. The drug
carrier, polyurethane, exhibited a barrier surrounding the
antibacterial agent, auranofin to extend the drug releasing time
and improve the long-term antibacterial and antibiofilm efficacy.
The study demonstrates that auranofin-polyurethane coated catheters
were able to inhibit methicillin resistant S. aureus growth for 7
days at the auranofin loading concentration as low as 3 mg/ml. When
the auranofin loading concentration increased to 60 mg/ml, the
coated catheters could resist bacterial growth on surface of
catheters for 26 days. The in vitro release profiles of the
auranofin from the auranofin-polyurethane coated catheters treated
with various concentrations of auranofin coating solution indicated
that slow and extended auranofin with at least minimum inhibitory
concentration was released from the polyurethane coating to inhibit
bacterial growth. In addition, the anitbiofilm efficacy of the
auranofin-polyurethane coated catheters was determined. By
monitoring the level bioluminescence of the bacteria, the
auranofin-polyurethane coated catheters were able to inhibit the
biofilm formation.
Advisors/Committee Members: Shukla, Anita (Advisor), Fuchs, Beth (Advisor), Tripathi, Anubhav (Reader), Lefort, Craig (Reader).
Subjects/Keywords: Antibacterial material
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Liu, H. (2018). Auranofin releasing antibacterial and antibiofilm
polyurethane intravascular catheter coatings. (Thesis). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:792789/
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):
Liu, Hanyang. “Auranofin releasing antibacterial and antibiofilm
polyurethane intravascular catheter coatings.” 2018. Thesis, Brown University. Accessed March 02, 2021.
https://repository.library.brown.edu/studio/item/bdr:792789/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Liu, Hanyang. “Auranofin releasing antibacterial and antibiofilm
polyurethane intravascular catheter coatings.” 2018. Web. 02 Mar 2021.
Vancouver:
Liu H. Auranofin releasing antibacterial and antibiofilm
polyurethane intravascular catheter coatings. [Internet] [Thesis]. Brown University; 2018. [cited 2021 Mar 02].
Available from: https://repository.library.brown.edu/studio/item/bdr:792789/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Liu H. Auranofin releasing antibacterial and antibiofilm
polyurethane intravascular catheter coatings. [Thesis]. Brown University; 2018. Available from: https://repository.library.brown.edu/studio/item/bdr:792789/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
4.
Sigdel, Aruna.
Biological Application of Magnetic Nanoparticles in Targeted
Therapeutics and Diagnostics.
Degree: PhD, Chemistry, 2014, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:386286/
► Abstract of "Biological Application of Magnetic Nanoparticles in Targeted Therapeutics and Diagnostics" by Aruna Sigdel, Ph.D., Brown University, May 2014 Theranostics, the combination of diagnosis…
(more)
▼ Abstract of "Biological Application of Magnetic
Nanoparticles in Targeted Therapeutics and Diagnostics" by Aruna
Sigdel, Ph.D., Brown University, May 2014 Theranostics, the
combination of diagnosis and therapy, holds great promise for
successful cancer therapy. It allows simultaneous monitoring of
distribution, localization/release of a chemotherapy drug, and
therapeutic response. Gold (Au) and iron oxide (Fe3O4)
nanoparticles (NPs) have been extensively studied for the
theranostic applications due to their distinguished
optical/magnetic properties, their biocompatibility, and their
modifiable surface chemistry. In one study, I synthesized
dumbbell-like Au-Fe3O4 NPs, which are both magnetically and
optically active, and functionalized them with doxorubicin (DOX, a
powerful cancer therapeutic drug) on the Au side via a pH sensitive
Schiff-base bond and MUC1 antibody on Fe3O4 side for breast cancer
targeting (MUC1-antigen is over-expressed in 95% of breast cancer
cells). The efficacies of these theranostic NPs for targeting and
therapy were evaluated both in vitro and in vivo. Our data show
that the theranostic NPs target breast cancer cells and release DOX
in low pH lysosomes to inhibit tumor growth. They are superior to
the pure therapeutic drug. I studied iron oxide (Fe3O4)
nanoparticles (NPs) which are FDA approved as contrast agents in
Magnetic Resonance Imaging (MRI). I synthesized, functionalized the
Fe3O4 NPs with pH low insertion peptide (pHLIP) and studied their
targeting ability to the cancer cells utilizing extracellular low
pH environment of tumor. I also studied an alternative approach for
cancer therapy without using any conventional drugs. In this study,
I synthesized FeAu alloy NPs and tested their controlled Fe-release
in low pH environment. FeAu alloy NPs possesses plasmonic property
that can be combined with theraperutic to monitor the therapeutic
response. I noticed that the release Fe(0) can catalyze H2O2
decomposition into hydroxyl radical, one of the known reactive
oxygen species (ROS). The overproduction of ROS causes rapid
oxidation of biomolecules, leading to cell apoptosis. My
preliminary tests showed that FeAu NPs are cytotoxic to cancer
cells and can be used as a new generation of therapeutic
drug.
Advisors/Committee Members: Sun, Shouheng (Director), Basu, Amit (Reader), Hurt, Robert (Reader).
Subjects/Keywords: Material Science
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sigdel, A. (2014). Biological Application of Magnetic Nanoparticles in Targeted
Therapeutics and Diagnostics. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:386286/
Chicago Manual of Style (16th Edition):
Sigdel, Aruna. “Biological Application of Magnetic Nanoparticles in Targeted
Therapeutics and Diagnostics.” 2014. Doctoral Dissertation, Brown University. Accessed March 02, 2021.
https://repository.library.brown.edu/studio/item/bdr:386286/.
MLA Handbook (7th Edition):
Sigdel, Aruna. “Biological Application of Magnetic Nanoparticles in Targeted
Therapeutics and Diagnostics.” 2014. Web. 02 Mar 2021.
Vancouver:
Sigdel A. Biological Application of Magnetic Nanoparticles in Targeted
Therapeutics and Diagnostics. [Internet] [Doctoral dissertation]. Brown University; 2014. [cited 2021 Mar 02].
Available from: https://repository.library.brown.edu/studio/item/bdr:386286/.
Council of Science Editors:
Sigdel A. Biological Application of Magnetic Nanoparticles in Targeted
Therapeutics and Diagnostics. [Doctoral Dissertation]. Brown University; 2014. Available from: https://repository.library.brown.edu/studio/item/bdr:386286/
Addis Ababa University
5.
Mengistu, Aregaw Kebede.
Investigation of Calcite and Volcanic Ash for Their Utilizations as Cement Filling and Additive Materials
.
Degree: 2012, Addis Ababa University
URL: http://etd.aau.edu.et/dspace/handle/123456789/762
► The purpose of this study is to use calcite and volcanic soil as cement filling and additive materials in order to maximize cement productions in…
(more)
▼ The purpose of this study is to use calcite and volcanic soil as cement filling and additive
materials in order to maximize cement productions in Ethiopia. In this study the
characteristics of calcite and volcanic soil, suitable mix design of OPC raw materials,
sources of calcite, chemical properties of calcite, volcanic soil, basic cement raw
materials and clinker, and the effect of calcite and volcanic soil on mechanical
performance of concrete were investigated. The additions of calcite up to 15% by weight
improves early strength and additions above 15% results little decreasing early strength
but develop high lateral strength. Use of volcanic soil from 28% to 35% by weight results
a decrease of early strength and develops lateral strength. The additions of these materials
did not affect quality of cement and mechanical performance of concrete.
The investigation shows that up to 15% Calcite filled cements have superior properties to
the current Portland cement and Portland Pozzolanic Cements such as high early strength,
excellent volume stability, minimum cost of productions and easy manufacture process.
Advisors/Committee Members: _Dr. Mesfin Redi_ (advisor).
Subjects/Keywords: material science
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APA ·
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APA (6th Edition):
Mengistu, A. K. (2012). Investigation of Calcite and Volcanic Ash for Their Utilizations as Cement Filling and Additive Materials
. (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/762
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):
Mengistu, Aregaw Kebede. “Investigation of Calcite and Volcanic Ash for Their Utilizations as Cement Filling and Additive Materials
.” 2012. Thesis, Addis Ababa University. Accessed March 02, 2021.
http://etd.aau.edu.et/dspace/handle/123456789/762.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mengistu, Aregaw Kebede. “Investigation of Calcite and Volcanic Ash for Their Utilizations as Cement Filling and Additive Materials
.” 2012. Web. 02 Mar 2021.
Vancouver:
Mengistu AK. Investigation of Calcite and Volcanic Ash for Their Utilizations as Cement Filling and Additive Materials
. [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2021 Mar 02].
Available from: http://etd.aau.edu.et/dspace/handle/123456789/762.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mengistu AK. Investigation of Calcite and Volcanic Ash for Their Utilizations as Cement Filling and Additive Materials
. [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/762
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Addis Ababa University
6.
TSEGAYE, BELEGE.
ROLE OF SURFACE CHEMISTRY IN MODIFYING THE OPTICAL PROPERTIES OF SILICON NANOSTRUCTURE
.
Degree: 2012, Addis Ababa University
URL: http://etd.aau.edu.et/dspace/handle/123456789/765
► We combine two model used earlier. We vary the fitting parameters C and α (which depend on surface, geometry, confinement, size, porosity and materials properties).…
(more)
▼ We combine two model used earlier. We vary the fitting parameters C and α (which depend on
surface, geometry, confinement, size, porosity and materials properties). We use surface energy (E s =
0.05eV), binding energy (Eb = 0.07eV), C, and α using these as input we generate Eg and PL
intensity spectra. The Eg and PL spectrum are compared with TB and PP data. The position of PL
peak is used to find the band gap and compared with the experiment. The main objective is to use the
already existing model, combining them and use fitting parameters to calculate optical properties
like PL intensity and band gap for varying size. The results show qualitative agreement with the
experiment. This is due to the simplicity of the model. However, we found it is interesting to use the
fitting parameters C and α to show that our model is in good agreement with the experimental
observation.
Advisors/Committee Members: Dr. S. K Ghoshal (advisor).
Subjects/Keywords: material science
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Record Details
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APA ·
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MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
TSEGAYE, B. (2012). ROLE OF SURFACE CHEMISTRY IN MODIFYING THE OPTICAL PROPERTIES OF SILICON NANOSTRUCTURE
. (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/765
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):
TSEGAYE, BELEGE. “ROLE OF SURFACE CHEMISTRY IN MODIFYING THE OPTICAL PROPERTIES OF SILICON NANOSTRUCTURE
.” 2012. Thesis, Addis Ababa University. Accessed March 02, 2021.
http://etd.aau.edu.et/dspace/handle/123456789/765.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
TSEGAYE, BELEGE. “ROLE OF SURFACE CHEMISTRY IN MODIFYING THE OPTICAL PROPERTIES OF SILICON NANOSTRUCTURE
.” 2012. Web. 02 Mar 2021.
Vancouver:
TSEGAYE B. ROLE OF SURFACE CHEMISTRY IN MODIFYING THE OPTICAL PROPERTIES OF SILICON NANOSTRUCTURE
. [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2021 Mar 02].
Available from: http://etd.aau.edu.et/dspace/handle/123456789/765.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
TSEGAYE B. ROLE OF SURFACE CHEMISTRY IN MODIFYING THE OPTICAL PROPERTIES OF SILICON NANOSTRUCTURE
. [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/765
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Addis Ababa University
7.
ANTENEH, WODAJE BAYEH.
SOLID STATE PHOTOELECTROCHEMICAL SOLAR ENERGY CONVERSION BASED ON A MIXTURE OF MEH-PPV AND MDMO-PPV
.
Degree: 2012, Addis Ababa University
URL: http://etd.aau.edu.et/dspace/handle/123456789/766
► Solid state photoelectrochemical solar energy conversion based on a mixture of MEH- PPV and MDMO-PPV, coated on ITO glass as light harvesting unit, a solid…
(more)
▼ Solid state photoelectrochemical solar energy conversion based on a mixture of MEH-
PPV and MDMO-PPV, coated on ITO glass as light harvesting unit, a solid polymer
electrolyte, POMOE complexed with I3- /I- redox couple and oxidized PEDOT as counter
electrode have been fabricated and studied for its photoresponse behavior. The short
circuit current (Isc), open circuit voltage (Voc), and fill factor (FF) of this mixed polymer
based PEC is higher than that of MEH-PPV based device. A PEC with a structure ITO│
(MEH-PPV:MDMO-PPV)│POMOE│: I3- /I-│PEDOT│ITO produce Voc of 289.7 mV,
Isc of 0.21 A/cm2 and FF of 0.32. The device showed an incident monochromatic photon
to current conversion efficiency (IPCE) of 0.0034% illuminated from front side and
0.00013% illuminated from back side. The dependence of Isc and Voc on incident light
intensity showed both Isc and Voc increases with increasing light intensity. The plot of
logIsc versus logPi yielded straight line with the power factor α is equal to 0.793. Our
results show that mixing of two donor type polymer, PEC show relatively improved
performance when compared with individual MEH-PPV based device.
Advisors/Committee Members: _Prof. Teketel Yohannes (advisor).
Subjects/Keywords: material science
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):
ANTENEH, W. B. (2012). SOLID STATE PHOTOELECTROCHEMICAL SOLAR ENERGY CONVERSION BASED ON A MIXTURE OF MEH-PPV AND MDMO-PPV
. (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/766
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):
ANTENEH, WODAJE BAYEH. “SOLID STATE PHOTOELECTROCHEMICAL SOLAR ENERGY CONVERSION BASED ON A MIXTURE OF MEH-PPV AND MDMO-PPV
.” 2012. Thesis, Addis Ababa University. Accessed March 02, 2021.
http://etd.aau.edu.et/dspace/handle/123456789/766.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
ANTENEH, WODAJE BAYEH. “SOLID STATE PHOTOELECTROCHEMICAL SOLAR ENERGY CONVERSION BASED ON A MIXTURE OF MEH-PPV AND MDMO-PPV
.” 2012. Web. 02 Mar 2021.
Vancouver:
ANTENEH WB. SOLID STATE PHOTOELECTROCHEMICAL SOLAR ENERGY CONVERSION BASED ON A MIXTURE OF MEH-PPV AND MDMO-PPV
. [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2021 Mar 02].
Available from: http://etd.aau.edu.et/dspace/handle/123456789/766.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
ANTENEH WB. SOLID STATE PHOTOELECTROCHEMICAL SOLAR ENERGY CONVERSION BASED ON A MIXTURE OF MEH-PPV AND MDMO-PPV
. [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/766
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Addis Ababa University
8.
Getachew, Abera.
The Management and Utilization of Educational Material Resources in Secondary School in North Shoa Zone of Oromia
.
Degree: 2014, Addis Ababa University
URL: http://etd.aau.edu.et/dspace/handle/123456789/6901
► The study was initiated to explore the management and utilization of educational material resources in selected secondary schools of North Shoa. It attempted to identify.…
(more)
▼ The study was initiated to explore the management and utilization of educational
material resources in selected secondary schools of North Shoa. It attempted to identify. How are educational
material resources managed and utilized to achieve educational objectives in secondary schools? To realize the purpose of the study, descriptive survey research design was selected which helps researcher to have understanding of the problem by studying the current status, nature of the prevailing conditions, practices and trends through relevant and precise information. Mixed research method is particularly important in complementing the limitation of each method by another. Both primary and secondary sources of data were used in the study. Three different but complementary data collection instruments such as questionnaire, interview and FGD were used for the sampling technique. Whereas, FGD participants (selected teachers and administrative staffs), interview participants (WEOH, principals and administrative staffs) and questionnaire participants (teachers) where selected. Accor0dingly, the study was carried out on five secondary schools that were selected using random sampling technique. The study also involved 81 teachers, 5 secondary school principals, five WEOH, and eleven administrative staffs; the total of 102 respondents. Data were analyzed and interpreted using both quantitatively and qualitatively. The data collected through questionnaire were analyzed quantitatively: percentages and mean were used; qualitative data collected through interviews and FGDS and open ended questions were analyzed by explanation as well as in narrative form. The finding of the study revealed that, there are noticeable short coming in the management of educational
material resources. Among these, in adequate 5knowledge of principals and school board in resource management, delay in purchasing, lack of gathering pertinent information during purchasing, lack of utilization of available resources exhaustively, delay in distribution of
material resources, lack of exchange of information among distribution and allocation bodies, lack of need assessment during planning and inventory control were the major challenges in the management and utilization of educational materials resources. Accordingly, the conclusion drawn is that the management of educational
material resources in secondary schools under consideration was less than expectation. Finally, recommendations for addressing this issues were proposed as, among other things provision of awareness raising instruction, organizing a committee responsible for
material resources management and utilization, conduct research by DOFED and OFED as to how to improve the function of the organization, developing a sense of ownership among the school community and preventive maintenance for wanton or other damages so as to improve the management and utilization of educational
material resources
Advisors/Committee Members: Hailesellassie Woldegerima (Asst. prof) (advisor).
Subjects/Keywords: material resources
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APA (6th Edition):
Getachew, A. (2014). The Management and Utilization of Educational Material Resources in Secondary School in North Shoa Zone of Oromia
. (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/6901
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):
Getachew, Abera. “The Management and Utilization of Educational Material Resources in Secondary School in North Shoa Zone of Oromia
.” 2014. Thesis, Addis Ababa University. Accessed March 02, 2021.
http://etd.aau.edu.et/dspace/handle/123456789/6901.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Getachew, Abera. “The Management and Utilization of Educational Material Resources in Secondary School in North Shoa Zone of Oromia
.” 2014. Web. 02 Mar 2021.
Vancouver:
Getachew A. The Management and Utilization of Educational Material Resources in Secondary School in North Shoa Zone of Oromia
. [Internet] [Thesis]. Addis Ababa University; 2014. [cited 2021 Mar 02].
Available from: http://etd.aau.edu.et/dspace/handle/123456789/6901.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Getachew A. The Management and Utilization of Educational Material Resources in Secondary School in North Shoa Zone of Oromia
. [Thesis]. Addis Ababa University; 2014. Available from: http://etd.aau.edu.et/dspace/handle/123456789/6901
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Technical University of Lisbon
9.
Veloso, Jorge Filipe Azambujo.
An empirical study on deprivation.
Degree: 2014, Technical University of Lisbon
URL: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/7572
► Mestrado em Econometria Aplicada e Previsão
O objetivo deste trabalho é identificar os determinantes socio-económicos e demográficos da Intensidade da Privação Matéria, e investigar as…
(more)
▼ Mestrado em Econometria Aplicada e Previsão
O objetivo deste trabalho é identificar os determinantes socio-económicos e demográficos da Intensidade da Privação Matéria, e investigar as suas alterações quando se considera diferentes contextos macroeconómicos - crescimento moderado
versus recessão (Economia Portuguesa, anos 2004 e 2012) e os grupos complementares - Economicamente Pobres e Não-Pobres. Este trabalho usa os 9 indicadores de Privação Material presentemente usados pelo Eurostat nos 27 Estados Membros da União Europeia para modelar o Score de Privação Material. Dado que a nossa variável de interesse é uma variável de
contagem, vamos aplicar métodos para modelação de dados de contagem, nomeadamente, o modelo de Poisson e o modelo Zero-Inflated Poisson. Os resultados mostram quais são os principais determinantes da Intensidade da Privação Material, e que estes não variam, de forma significativa, face aos diferentes cenários macroeconómicos e grupos considerados.
The aim of this dissertation is to determine the socio-economic and demographic determinants of Material Deprivation Intensity, and investigate their changes when considering different macroeconomic backgrounds - moderate growth versus recession (Portuguese economy, years 2004 and 2012), and the additional groups - Income and Non-Income Poor. This work uses the 9 Material Deprivation indicators currently in use by
Eurostat in the 27 European Union Member States to model the Material Deprivation Score. Given that the interest variable is a count variable, we will apply methodological framework for count data modeling, more particularly, Poisson and Zero-Inflated Poisson models. The results have shown what are the key determinants of the Material Deprivation Intensity, and also that they don?t change, in a significant way, in face of the considered macroeconomic backgrounds and groups.
Advisors/Committee Members: Proença, Isabel.
Subjects/Keywords: Privação Material; Intensidade da Privação Material; Pobreza; Material Deprivation; Material Deprivation Intensity; Poverty
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APA (6th Edition):
Veloso, J. F. A. (2014). An empirical study on deprivation. (Thesis). Technical University of Lisbon. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/7572
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):
Veloso, Jorge Filipe Azambujo. “An empirical study on deprivation.” 2014. Thesis, Technical University of Lisbon. Accessed March 02, 2021.
http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/7572.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Veloso, Jorge Filipe Azambujo. “An empirical study on deprivation.” 2014. Web. 02 Mar 2021.
Vancouver:
Veloso JFA. An empirical study on deprivation. [Internet] [Thesis]. Technical University of Lisbon; 2014. [cited 2021 Mar 02].
Available from: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/7572.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Veloso JFA. An empirical study on deprivation. [Thesis]. Technical University of Lisbon; 2014. Available from: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/7572
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Mississippi State University
10.
Bhatt, Chet Raj.
Material characterization using laser-induced breakdown spectroscopy.
Degree: PhD, Physics and Astronomy, 2018, Mississippi State University
URL: http://sun.library.msstate.edu/ETD-db/theses/available/etd-09142017-200240/
;
► Laser-induced breakdown spectroscopy (LIBS) has been established as a rapid, in situ, and real-time spectroscopic analytical technique for material characterization. It is very handy…
(more)
▼ Laser-induced breakdown spectroscopy (LIBS) has been established as a rapid, in situ, and real-time spectroscopic analytical technique for
material characterization. It is very handy for the study of all kinds of materials irrespective of their state. After being used for a Mars mission, LIBS has gained global attention and many scientific researches are investigating its applications. The main objective of this dissertation is to study the possibility of using laser spectroscopic sensing techniques for
material characterization and if possible, to develop methodologies.
Studying molecular emission spectra for elemental analysis is a relatively new trend in the spectroscopic field. Molecular emission from SrCl and SrO observed in LIBS spectra were analyzed and compared with atomic emission from Sr. Calibration models were developed using both molecular bands and atomic spectral peaks.
The determination of nutritional elements in crops, vegetables, and fruits is very important to evaluate their nutritional status. The LIBS technique was applied to identify the nutritional elements present in cauliflower and broccoli, and to evaluate the difference between organic and conventional vegetables in terms of nutritional elements. Principal
component analysis (PCA) and one-to-one comparison using Student's t-test were employed for discrimination between organic and conventional vegetable flowers.
Early iron and steel production in the state of Pennsylvania (United States) mostly utilized blast furnaces that were operated by charcoal as a primary fuel, followed by anthracite, then coke. The process left behind a by-product known as blast furnace slag. Blast furnace slag, non-metallic in nature, appears to have various industrial applications. LIBS was used for the analysis of charcoal blast furnace slags and qualitative as well as quantitative analyses were demonstrated.
To evaluate the possibility of using the LIBS technique to detect and quantify rare earth elements, three consecutive studies were executed. Firstly, pure oxides of six rare earth elements were studied and then real samples directly taken from natural ores were analyzed. In the third step, two rare earth elements (Eu and Yb) in aqueous solutions were studied by underwater LIBS and the pressure effect on the plasma emission is discussed.
Advisors/Committee Members: David L. Monts (committee member), Hendrik F. Arnoldus (committee member), Jagdish P. Singh (committee member), Dustin McIntyre (committee member), Ratneshwar Jha (committee member).
Subjects/Keywords: Material characterization; LIBS
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APA (6th Edition):
Bhatt, C. R. (2018). Material characterization using laser-induced breakdown spectroscopy. (Doctoral Dissertation). Mississippi State University. Retrieved from http://sun.library.msstate.edu/ETD-db/theses/available/etd-09142017-200240/ ;
Chicago Manual of Style (16th Edition):
Bhatt, Chet Raj. “Material characterization using laser-induced breakdown spectroscopy.” 2018. Doctoral Dissertation, Mississippi State University. Accessed March 02, 2021.
http://sun.library.msstate.edu/ETD-db/theses/available/etd-09142017-200240/ ;.
MLA Handbook (7th Edition):
Bhatt, Chet Raj. “Material characterization using laser-induced breakdown spectroscopy.” 2018. Web. 02 Mar 2021.
Vancouver:
Bhatt CR. Material characterization using laser-induced breakdown spectroscopy. [Internet] [Doctoral dissertation]. Mississippi State University; 2018. [cited 2021 Mar 02].
Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-09142017-200240/ ;.
Council of Science Editors:
Bhatt CR. Material characterization using laser-induced breakdown spectroscopy. [Doctoral Dissertation]. Mississippi State University; 2018. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-09142017-200240/ ;
University of Ottawa
11.
MacIntyre, Hector.
Material Culture and Technological Determinism
.
Degree: 2015, University of Ottawa
URL: http://hdl.handle.net/10393/31939
► This dissertation has two results. First, I argue that each of the two basic components of technological determinism (TD)—what I call the inexorability thesis and…
(more)
▼ This dissertation has two results. First, I argue that each of the two basic components of technological determinism (TD)—what I call the inexorability thesis and the autonomy thesis—are plausible claims on a naturalistic stance. Second, I argue that a normative model for the design of cognitive systems can guide the practice of cognitive engineering, e.g. the task of building cognitive aids and enhancements. TD conjoins two logically independent but empirically related claims. The inexorability thesis is the claim that technology change is an evolutionary process. I defend this claim against considerations raised by Lewens, most notably the lack of a robust account of artifact reproduction that would underwrite genuine transmission. I consider (but reject) the solution of memeticists to this problem. I find that theorists of cultural evolution, e.g. Boyd and Richerson (among others), do present a plausible response. Technologies can be said to evolve via the cumulative selective process of cultural retention. The autonomy thesis is the claim that features of human cognitive agency arise from material culture. I argue for this thesis through a consideration of the merits of Preston’s theory of material culture. Her sociogeneric approach attributes human cognitive agency to a material cultural genesis, and this approach is backed by strong anthropological evidence. Preston would not accept the thesis but she does not manage to exclude it, despite an admirable attempt to develop an account of innovation. I also consider the design of technologies in the practice of cognitive engineering and propose adopting a normative theory of factitious intellectual virtue as a model to guide design in this arena.
Subjects/Keywords: Technology;
Material culture
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APA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
MacIntyre, H. (2015). Material Culture and Technological Determinism
. (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/31939
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):
MacIntyre, Hector. “Material Culture and Technological Determinism
.” 2015. Thesis, University of Ottawa. Accessed March 02, 2021.
http://hdl.handle.net/10393/31939.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
MacIntyre, Hector. “Material Culture and Technological Determinism
.” 2015. Web. 02 Mar 2021.
Vancouver:
MacIntyre H. Material Culture and Technological Determinism
. [Internet] [Thesis]. University of Ottawa; 2015. [cited 2021 Mar 02].
Available from: http://hdl.handle.net/10393/31939.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
MacIntyre H. Material Culture and Technological Determinism
. [Thesis]. University of Ottawa; 2015. Available from: http://hdl.handle.net/10393/31939
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Ghana
12.
Marfo, K.K.
Effects of Metakaolin as Supplementary Cementitious Material in Mortars for Construction Applications
.
Degree: 2018, University of Ghana
URL: http://ugspace.ug.edu.gh/handle/123456789/29614
► This work presents the effects of metakaolin as a supplementary cementitious material in mortars for construction applications. Kaolin from Teleku Bokazo was calcined at 650…
(more)
▼ This work presents the effects of metakaolin as a supplementary cementitious material in mortars for construction applications. Kaolin from Teleku Bokazo was calcined at 650 °C and partially used to replace Portland limestone cement to produce mortars and paste. The metakaolin was successfully used in a cement paste and its effect observed in the different cement replacements proportions. The replacements ranged from 10% - 35% by mass and characterised after 3, 7, 14 and 28 days of curing. Kaolin was characterized using X-ray diffractometer (XRD) with illite, kaolinite and quartz as the main crystalline phases. The metakaolin was also characterised using XRD with quartz as the main crystalline phase. Calcium silicate hydrate, calcium aluminium silicate hydrate, portlandite, calcite and ettringite were some of the hydrated compounds formed in the hydrated pastes. Fourier transform infrared spectroscopy was used to determine the functional groups of the hydrated cement products formed from the metakaolin cement paste. Other test including initial setting and water consistency were also carried out. Water consistency and setting times generally increased with increase in metakaolin addition. The optimum metakaolin replacement for flexural strength after 28 days curing was 15 and 20% whereas the compressive strength after 28 days curing was 20% metakaolin replacement. Generally, the metakaolin reduced the amount of water absorbed by capillary action for the 28 days cured mortar bars.
The results suggest that 20% metakaolin replacements of Portland limestone possess characteristics that can be adopted for use in mortars for construction applications.
Subjects/Keywords: Metakaolin;
Cementitious Material
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APA (6th Edition):
Marfo, K. K. (2018). Effects of Metakaolin as Supplementary Cementitious Material in Mortars for Construction Applications
. (Masters Thesis). University of Ghana. Retrieved from http://ugspace.ug.edu.gh/handle/123456789/29614
Chicago Manual of Style (16th Edition):
Marfo, K K. “Effects of Metakaolin as Supplementary Cementitious Material in Mortars for Construction Applications
.” 2018. Masters Thesis, University of Ghana. Accessed March 02, 2021.
http://ugspace.ug.edu.gh/handle/123456789/29614.
MLA Handbook (7th Edition):
Marfo, K K. “Effects of Metakaolin as Supplementary Cementitious Material in Mortars for Construction Applications
.” 2018. Web. 02 Mar 2021.
Vancouver:
Marfo KK. Effects of Metakaolin as Supplementary Cementitious Material in Mortars for Construction Applications
. [Internet] [Masters thesis]. University of Ghana; 2018. [cited 2021 Mar 02].
Available from: http://ugspace.ug.edu.gh/handle/123456789/29614.
Council of Science Editors:
Marfo KK. Effects of Metakaolin as Supplementary Cementitious Material in Mortars for Construction Applications
. [Masters Thesis]. University of Ghana; 2018. Available from: http://ugspace.ug.edu.gh/handle/123456789/29614
University of Illinois – Chicago
13.
Behranginia, Amirhossein.
2D-Materials: Synthesis and Investigation of Electrical and Thermal Properties.
Degree: 2018, University of Illinois – Chicago
URL: http://hdl.handle.net/10027/23130
► This dissertation presents a study of (1) the growth of in-plane MoS2-graphene heterostructure together with its electrical characterizations, (2) the power dissipation of the WSe2…
(more)
▼ This dissertation presents a study of (1) the growth of in-plane MoS2-graphene heterostructure together with its electrical characterizations, (2) the power dissipation of the WSe2 FET as a representative of 2D-
material FETs (Field effect transistors), and (3) thermal dissipation across monolayer CVD graphene, as a representative of 2D-materials, on different technologically-viable substrates.
First, the in-plane MoS2-graphene heterostructure is grown by the CVD method for large-scale applications. Electrical characterizations and 1/f noise measurements of this heterostructure reveal an order of magnitude higher electron mobility and lower noise amplitude for this heterostructure compared to conventional metal-contact MoS2 devices. The KPFM (Kelvin Probe Force Microscop) study is performed to map the surface potential distribution across the MoS2-graphene interface and visualizes the reduction of the MoS2-graphene interface resistance at positive gate voltages. The DFT (Density Functional Theory) calculations demonstrate that the role of this interface resistance is less than 1% of the overall device resistance at gate voltages above 60 V. Similar failure modes and electrostatic breakdown fields for MoS2-graphene and MoS2-metal devices are also observed by electrostatic breakdown measurements.
Second, the power dissipation of the WSe2 FET, as a representative of the 2D-materials, is investigated by the Raman thermometry method. The low-frequency E2g2 peak of WSe2
material is used to measure the temperature rise of the device versus different the applied electrical powers. The interface resistance measurement between WSe2 and SiO2/Si substrate reveals that their interface TBC (Thermal Boundary Conductance) is in the low range of the solid-solid interfaces, proving the importance of the interface resistances for thermal dissipation of 2D-FETs.
Finally,to shed light on the role of the interface resistance of 2D-materials with different substrates, thermal dissipation of CVD graphene on different technologically-viable substrates is investigated. The interface resistances between graphene and different tested substrates reveal that the overall thermal dissipation performance on AlN is better than on diamond substrate, although the thermal conductance of the AlN is significantly lower than that diamond
material. These results confirm that the thermal conductance of the substrate is not the only key factor which is important for thermal dissipation of the 2D-
material devices and that the role of the boundary resistance between 2D-
material and substrate is very crucial.
Advisors/Committee Members: Salehi-Khojin, Amin (advisor), Feinerman, Alan (committee member), Klie, Robert F (committee member), Shahbazian-Yassar, Reza (committee member), Abiade, Jeremiah (committee member), Salehi-Khojin, Amin (chair).
Subjects/Keywords: 2D Material; Heterostructure
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Manager
APA (6th Edition):
Behranginia, A. (2018). 2D-Materials: Synthesis and Investigation of Electrical and Thermal Properties. (Thesis). University of Illinois – Chicago. Retrieved from http://hdl.handle.net/10027/23130
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):
Behranginia, Amirhossein. “2D-Materials: Synthesis and Investigation of Electrical and Thermal Properties.” 2018. Thesis, University of Illinois – Chicago. Accessed March 02, 2021.
http://hdl.handle.net/10027/23130.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Behranginia, Amirhossein. “2D-Materials: Synthesis and Investigation of Electrical and Thermal Properties.” 2018. Web. 02 Mar 2021.
Vancouver:
Behranginia A. 2D-Materials: Synthesis and Investigation of Electrical and Thermal Properties. [Internet] [Thesis]. University of Illinois – Chicago; 2018. [cited 2021 Mar 02].
Available from: http://hdl.handle.net/10027/23130.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Behranginia A. 2D-Materials: Synthesis and Investigation of Electrical and Thermal Properties. [Thesis]. University of Illinois – Chicago; 2018. Available from: http://hdl.handle.net/10027/23130
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Queen Mary, University of London
14.
Rigby, Jeffrey Michael.
Holomorphic dynamics on bounded symmetric domains of finite rank.
Degree: PhD, 2015, Queen Mary, University of London
URL: http://qmro.qmul.ac.uk/xmlui/handle/123456789/13118
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.775118
► In this thesis we present new results in holomorphic dynamics on rank-2 bounded symmetric domains, which can be infinite-dimensional. Some of these results have been…
(more)
▼ In this thesis we present new results in holomorphic dynamics on rank-2 bounded symmetric domains, which can be infinite-dimensional. Some of these results have been published in [12]. Together with other current research, this establishes a comprehensive theory of the dynamics of fixed-point-free holomorphic self-maps on rank-2 bounded symmetric domains. Jordan theory is the novel approach used to achieve these results, which relates to the hyperbolic geometry of bounded symmetric domains. We examine the iterates of a fixed-point-free holomorphic self-map on the open unit balls D of two classes of JB*-triples: 1. A finite `1-sum V of Hilbert spaces; 2. The Banach space L(C2,H) of all bounded linear operators from C2 to a Hilbert space H. The main results in each case are an explicit description in Jordan theoretic terms of the invariant domains of f and an analysis of the subsequential limit points of the iterates of f in the topology of locally uniform convergence. Details are given as follows. Let f : D ! D be a compact fixed-point-free holomorphic map. We show the existence of horospheres S(⇠,) at a boundary point ⇠ of D, parameterised by a positive number #, satisfying f(S(⇠, #) D) ⇢ S(⇠, #) D. These horospheres are described in terms of the Bergmann operator. 6 7 In Case 1, where V is a sum of p Hilbert spaces V1, . . . ,Vp, the horosphere S(⇠, #) at the boundary point ⇠ = (⇠1, . . . , ⇠p) has the form S(⇠, #) = Yp j=1 Sj(⇠j,#) where, for some nonempty subset J of {1, ..., p}, Sj(⇠j,#) = Dj for j 62 J and, for j 2 J, Sj(⇠j,#) = #2j ⇠j + B(#j⇠j,#j⇠j)1/2(Dj) where Dj is the open unit ball of Vj and #j > 0. In Case 2, the horosphere has the form S(⇠, #) = #21 e + #22 v + B (#1e + #2v, #1e + #2v)1/2 (D) where #1 2 (0, 1), #2 2 [0, 1) and e is a minimal tripotent. Leveraging these results we analyse the subsequential limit points of (fn). In Case 1, we prove that each limit point h of the iterates (fn) satisfies ⇠j 2 ⇡j & h(D) for all j 2 J and ⇡j&h(·) = ⇠j whenever ⇡j&h(D) meets the boundary of Dj , where ⇡j is the coordinate map (x1, ...,xp) 2 D 7! xj 2 Dj . In Case 2, the boundary point ⇠, takes the form e+%v,, where e is a minimal tripotent, % 2 [0, 1] and, if % 6= 0, v is a minimal tripotent. For each limit point h of (fn), we have h(D) ⇢ Ku for some tripotent u satisfying Ku Ke 6= ;, where Ka denotes the boundary component in D containing a.
Subjects/Keywords: Mathematics; Material Sciences
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Manager
APA (6th Edition):
Rigby, J. M. (2015). Holomorphic dynamics on bounded symmetric domains of finite rank. (Doctoral Dissertation). Queen Mary, University of London. Retrieved from http://qmro.qmul.ac.uk/xmlui/handle/123456789/13118 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.775118
Chicago Manual of Style (16th Edition):
Rigby, Jeffrey Michael. “Holomorphic dynamics on bounded symmetric domains of finite rank.” 2015. Doctoral Dissertation, Queen Mary, University of London. Accessed March 02, 2021.
http://qmro.qmul.ac.uk/xmlui/handle/123456789/13118 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.775118.
MLA Handbook (7th Edition):
Rigby, Jeffrey Michael. “Holomorphic dynamics on bounded symmetric domains of finite rank.” 2015. Web. 02 Mar 2021.
Vancouver:
Rigby JM. Holomorphic dynamics on bounded symmetric domains of finite rank. [Internet] [Doctoral dissertation]. Queen Mary, University of London; 2015. [cited 2021 Mar 02].
Available from: http://qmro.qmul.ac.uk/xmlui/handle/123456789/13118 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.775118.
Council of Science Editors:
Rigby JM. Holomorphic dynamics on bounded symmetric domains of finite rank. [Doctoral Dissertation]. Queen Mary, University of London; 2015. Available from: http://qmro.qmul.ac.uk/xmlui/handle/123456789/13118 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.775118
University College Cork
15.
Allen, William.
A nation preferring visions: moving statues, apparitions and vernacular religion in contemporary Ireland.
Degree: 2014, University College Cork
URL: http://hdl.handle.net/10468/2105
► This thesis examines important issues of Irish vernacular Catholicism, Irish religious and cultural identities, the impacts of modernity plus socio-religious and economic change on traditional…
(more)
▼ This thesis examines important issues of Irish vernacular Catholicism, Irish religious and cultural identities, the impacts of modernity plus socio-religious and economic change on traditional religiosity, sacred landscape and topophilia, religious
material culture, folk and individual creativity, gender roles and expectations, and devotional subcultures through the vehicle of Marian apparitions and their aftermath in the Republic of Ireland in the late 20th and early 21st centuries. This thesis examines in detail five Irish Marian shrines as case studies; Knock shrine (Co. Mayo), Ballinspittle and Mitchelstown grottoes (Co. Cork), Mount Melleray grotto (Co. Waterford) and the Marian shrines of Inchigeela in West Cork and the attached houses of prayer. Key themes include; vernacular religious theory; the nature of Irish indigenous Catholicism; local, global and transnational trends in contemporary Irish devotional life; areas of individual creativity, fluidity and agency in Marian devotion; and the vital role and influence of
material culture in and on local and individual religiosity.
Advisors/Committee Members: Kapaló, James Alexander.
Subjects/Keywords: Vernacular; Apparition; Material
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APA (6th Edition):
Allen, W. (2014). A nation preferring visions: moving statues, apparitions and vernacular religion in contemporary Ireland. (Thesis). University College Cork. Retrieved from http://hdl.handle.net/10468/2105
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):
Allen, William. “A nation preferring visions: moving statues, apparitions and vernacular religion in contemporary Ireland.” 2014. Thesis, University College Cork. Accessed March 02, 2021.
http://hdl.handle.net/10468/2105.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Allen, William. “A nation preferring visions: moving statues, apparitions and vernacular religion in contemporary Ireland.” 2014. Web. 02 Mar 2021.
Vancouver:
Allen W. A nation preferring visions: moving statues, apparitions and vernacular religion in contemporary Ireland. [Internet] [Thesis]. University College Cork; 2014. [cited 2021 Mar 02].
Available from: http://hdl.handle.net/10468/2105.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Allen W. A nation preferring visions: moving statues, apparitions and vernacular religion in contemporary Ireland. [Thesis]. University College Cork; 2014. Available from: http://hdl.handle.net/10468/2105
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Illinois – Urbana-Champaign
16.
Liu, Jialun.
Nanoscale electronic devices based on the hybrid stacks of two-dimensional materials and ferroelectric metal oxides.
Degree: PhD, Electrical & Computer Engr, 2020, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/107844
► Further scaling of complementary metal-oxide-semiconductor (CMOS) dimensions will soon lead to a tremendous rise in power consumption while limited gain in the performance of integrated…
(more)
▼ Further scaling of complementary metal-oxide-semiconductor (CMOS) dimensions will soon lead to a tremendous rise in power consumption while limited gain in the performance of integrated circuits. “Beyond-CMOS” devices, based on two-dimensional (2D) materials, can potentially overcome these limitations and further improve the performance, reduce energy consumption, and add novel functionalities to the CMOS platform. In this Ph.D. dissertation, we investigated energy efficient electronic devices based on a new hybrid
material platform consisting of two-dimensional materials and ferroelectric metal oxides. The ferroelectric metal oxides provide programmable and non-volatile doping in the 2D materials, while the atomically thin body in 2D materials enables strong electrostatic control over the channel by the polarized ferroelectric metal oxides.
We design and demonstrate a new type of classifier using ferroelectric graphene transistors, which can perform the “comparison” function in the analog domain instead of the traditional digital domain. This new type of classifier utilizes the ambipolar transport and zero bandgap of the graphene to perform the absolute difference function, |A-B|, directly. Unlike the image classifier based on silicon CMOS, the classifier based on ferroelectric graphene transistors only needs ONE transistor per pixel, which will significantly reduce chip area and energy consumption. More importantly, the embedded ferroelectric layer in the graphene transistor enables the non-volatile storage of the target image inside the analog device. Therefore, a single graphene transistor can perform both image storage and comparison functions concurrently. This in-memory computing will eliminate the need for frequent image loading/unloading, which will further reduce the power consumption related to the data transfer.
We also explored non-volatile reconfigurable devices based on the hybrid stacks of ferroelectric materials and 2D materials. In traditional silicon CMOS, once the device is fabricated, its function is fixed as either an n-type or a p-type transistor. In this work, we show that functionality of this new type of device can be dynamically reconfigured during operation and the reconfiguration is non-volatile and reprogrammable. We have successfully demonstrated the electrostatic controlled reconfigurable devices based on black phosphorus and non-volatile reconfigurable devices based on molybdenum telluride and ferroelectric hafnium zirconium oxides. These reconfigurable devices will enable the logic circuits to evolve their functions on-demand. The 3D monolithic integration of these reconfigurable devices/circuits and memory blocks will enable in-memory computing and reduce the energy consumption and latency related to the transportation of “Big Data”.
This work will open a new path toward the design of novel nano-function circuits based on unique
material properties that are absent in traditional circuits based on CMOS logic transistors and Von Neumann architectures. These new devices will also…
Advisors/Committee Members: Zhu, Wenjuan (advisor), Lyding, Joseph W. (Committee Chair), Li, Xiuling (committee member), Cao, Qing (committee member).
Subjects/Keywords: 2D material; ferroelectrics
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APA ·
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MLA ·
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to Zotero / EndNote / Reference
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APA (6th Edition):
Liu, J. (2020). Nanoscale electronic devices based on the hybrid stacks of two-dimensional materials and ferroelectric metal oxides. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/107844
Chicago Manual of Style (16th Edition):
Liu, Jialun. “Nanoscale electronic devices based on the hybrid stacks of two-dimensional materials and ferroelectric metal oxides.” 2020. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed March 02, 2021.
http://hdl.handle.net/2142/107844.
MLA Handbook (7th Edition):
Liu, Jialun. “Nanoscale electronic devices based on the hybrid stacks of two-dimensional materials and ferroelectric metal oxides.” 2020. Web. 02 Mar 2021.
Vancouver:
Liu J. Nanoscale electronic devices based on the hybrid stacks of two-dimensional materials and ferroelectric metal oxides. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2020. [cited 2021 Mar 02].
Available from: http://hdl.handle.net/2142/107844.
Council of Science Editors:
Liu J. Nanoscale electronic devices based on the hybrid stacks of two-dimensional materials and ferroelectric metal oxides. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2020. Available from: http://hdl.handle.net/2142/107844
University of Illinois – Urbana-Champaign
17.
Cho, Shinhu.
Geopolymer composites and their applications in stress wave mitigation.
Degree: PhD, Mechanical Engineering, 2015, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/88053
► In recent years, environmentally friendly materials have been the focus as alternatives to ordinary Portland cement (OPC), which generates about 6% of the total carbon…
(more)
▼ In recent years, environmentally friendly materials have been the focus as alternatives to ordinary Portland cement (OPC), which generates about 6% of the total carbon dioxide emission in the world today and contributes to global warming. An alternative
material to cement is aluminosilicate inorganic polymer, also known as “geopolymer” which emits about 80% less CO2 than OPC. Therefore, the chemical, mechanical, thermal and electrical properties of geopolymers have been of interest for the past two decades.
The processes and microstructures of potassium-based geopolymer (K2O ∙ Al2O3 ∙ 4SiO2 ∙ 11H2O) have been studied by many researchers with various techniques. However, the brittleness and relatively lower strength limited the use of geopolymer in certain applications. Therefore, short carbon fibers (60 and 100 μm) have been introduced to reinforce the mechanical properties of potassium based geopolymer. The proper mixing and drying conditions of carbon fiber reinforced potassium geopolymer (Cf KGP) were determined since the mechanical properties varied in wide range depending on the drying conditions. Various static mechanical tests (flexure, uniaxial compression, hardness, toughness and biaxial tensile tests) and statistical analyses of brittle fractures (Weibull distribution) have been performed to investigate the optimal mechanical strengths of Cf KGP composites. In addition to the static measurements, the Young’s and shear moduli of Cf KGP have been measured by dynamic methods such as impulse excitation (IE) and resonant ultrasound spectroscopy (RUS) and compared with various theoretical models.
Graphene nanoplatelets have high mechanical, electrical and thermal properties that can significantly improve the desired properties of composites at even low contents. 1, 2 and 3 wt% of graphene nanoplatelet-reinforced, potassium geopolymers (GNP KGP) were prepared and their microstructures were investigated by SEM, XRD and Raman spectroscopy. The mechanical properties such as flexure strength, Weibull modulus, Vickers hardness and Young’s modulus were measured by four-point flexure, microindentation and impulse excitation testing. In addition to mechanical properties, the electrical and thermal properties of GNP KGP were investigated by measuring electrical resistances and thermal conductivities. Moreover, silicon functionalized graphene nanoplatelets (sGNP) were prepared in order to enhance interfacial bonding between GNP and the geopolymer matrix. The various mechanical properties of sGNP KGP were measured and compared with GNP KGP, in order to investigate the effect of silicon functionalization.
Due to their similarity with concrete, geopolymers have been mainly used as structural materials. With documented chemical and mechanical properties of geopolymers, their use could be expanded to applications in many disciplines. In this work, geopolymers were used as granular media and displayed interesting dynamic behavior for stress wave mitigation and as acoustic metamaterials. The fabrication of geopolymer beads was…
Advisors/Committee Members: Kriven, Waltraud M. (advisor), Vakakis, Alexander F. (Committee Chair), Shang, Jian Ku (committee member), Mondal, Paramita (committee member).
Subjects/Keywords: Geopolymer; Sustainable Material
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APA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cho, S. (2015). Geopolymer composites and their applications in stress wave mitigation. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/88053
Chicago Manual of Style (16th Edition):
Cho, Shinhu. “Geopolymer composites and their applications in stress wave mitigation.” 2015. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed March 02, 2021.
http://hdl.handle.net/2142/88053.
MLA Handbook (7th Edition):
Cho, Shinhu. “Geopolymer composites and their applications in stress wave mitigation.” 2015. Web. 02 Mar 2021.
Vancouver:
Cho S. Geopolymer composites and their applications in stress wave mitigation. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2015. [cited 2021 Mar 02].
Available from: http://hdl.handle.net/2142/88053.
Council of Science Editors:
Cho S. Geopolymer composites and their applications in stress wave mitigation. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/88053
University of Illinois – Urbana-Champaign
18.
Schafer, Kevin A.
Improving reactivity of aluminum-based structural energetic materials.
Degree: MS, Mechanical Engineering, 2017, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/97636
► A common use for reactive metals is adding them to applications involving propellants and explosives to improve energy density and overall energy output. A newer…
(more)
▼ A common use for reactive metals is adding them to applications involving propellants and explosives to improve energy density and overall energy output. A newer application for the use of reactive metals is in warhead casings. Reactive metals provide the ability to boost performance in blast parameters such as peak overpressure and blast impulse. A strong contender for this application is aluminum because of its high combustion enthalpy, but current aluminum blast casings do not expend much of this stored energy. Aluminum casings also tend to create fragments that are too large to ignite and provide blast enhancement. The objective for this study is to find the most opportune methods to improve reactivity in aluminum based structural energetic materials. This will be done by testing different alloy structures and various
material inserts in structured explosive experiments. This study will also utilize heavy end confinement for all tests while also taking multiple pressure measurements, high speed images, and spectroscopic images in order to decide the performance improvement from each casing.
Advisors/Committee Members: Glumac, Nick (advisor).
Subjects/Keywords: Aluminum; Energetic material
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APA ·
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Export
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APA (6th Edition):
Schafer, K. A. (2017). Improving reactivity of aluminum-based structural energetic materials. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/97636
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):
Schafer, Kevin A. “Improving reactivity of aluminum-based structural energetic materials.” 2017. Thesis, University of Illinois – Urbana-Champaign. Accessed March 02, 2021.
http://hdl.handle.net/2142/97636.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Schafer, Kevin A. “Improving reactivity of aluminum-based structural energetic materials.” 2017. Web. 02 Mar 2021.
Vancouver:
Schafer KA. Improving reactivity of aluminum-based structural energetic materials. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2017. [cited 2021 Mar 02].
Available from: http://hdl.handle.net/2142/97636.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Schafer KA. Improving reactivity of aluminum-based structural energetic materials. [Thesis]. University of Illinois – Urbana-Champaign; 2017. Available from: http://hdl.handle.net/2142/97636
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Universitat de Valencia
19.
Rosado Calatayud, Luis Miguel.
Sociedad, cultura material y consumo en la Valencia de finales del Antiguo Régimen: un análisis comparativo entre el medio rural y el urbano. (Sueca-Xàtiva, 1700-1824)
.
Degree: 2014, Universitat de Valencia
URL: http://hdl.handle.net/10550/35460
► En la tesis doctoral Sociedad, cultura material y consumo en la Valencia de finales del Antiguo Régimen: Un análisis comparativo entre el medio rural y…
(more)
▼ En la tesis doctoral Sociedad, cultura
material y consumo en la Valencia de finales del Antiguo Régimen: Un análisis comparativo entre el medio rural y el urbano. (Sueca-Xàtiva, 1700-1824), se aborda un estudio comparativo de la evolución de la demanda de los diferentes tipos de bienes, y de un modo especial de los géneros textiles, entre 1700 y 1824 mediante el análisis del consumo realizado en un núcleo rural y uno urbano. Este trabajo de investigación trata de contribuir al conocimiento del proceso de transformación que experimentó la sociedad pre-industrial valenciana como consecuencia del desarrollo de las relaciones de mercado y la difusión de nuevas pautas de consumo. Este estudio se inserta en el marco de las líneas de investigación sobre la cultura
material y el consumo en el ámbito de la historia económica del Antiguo Régimen.
Tomando como muestra las localidades de Sueca y Xàtiva, situadas en el área central del territorio valenciano. Procediendo en los dos casos al examen de una amplia muestra de contratos dotales e inventarios post-mortem -los cuales se han complementado con la documentación de carácter censal, judicial, fiscal y política- para perfilar la identidad y el marco social de los individuos estudiados. La investigación ha puesto de manifiesto que el crecimiento demográfico y económico que se produjo en el siglo XVIII en Sueca fue mucho más intenso que el que tuvo lugar en Xàtiva, sobre todo a partir de mediados de la centuria, lo que atenuó considerablemente la superioridad inicial de los niveles de riqueza que existían en ésta.
No obstante, a pesar de la aproximación de los niveles de consumo que se produjo entre ambas localidades, se mantuvieron importantes diferencias que ponían de manifiesto la diversidad de los comportamientos sociales existentes entre el medio rural y el urbano. Así, en las dotes de Sueca seguían teniendo un peso mayor los bienes raíces, reflejando el carácter mayoritariamente rural de su actividad económica. Igualmente, los géneros textiles que integraban el ajuar doméstico eran menos numerosos que los existentes en las dotes de Xàtiva, pero tenían un valor muy superior. Realmente, las dotes de esta última ciudad seguían reflejando las peculiaridades de una sociedad urbana al contener un mayor número de prendas de indumentaria de un valor relativamente moderado. Por el contrario, las menores oportunidades de manifestar públicamente la posición social que existían en Sueca determinaban que se otorgase una mayor importancia al ajuar doméstico, mientras que las prendas de indumentaria de que se disponía destacaban por su riqueza y ostentación.
Además de constatar estas diferencias, la tesis ha puesto de manifiesto también el protagonismo que tuvieron los sectores sociales intermedios en la introducción de las innovaciones que se producían en materia de consumo, matizando la tesis clásica del “trickle down” sobre la existencia de un proceso lineal de imitación de los comportamientos de las clases sociales superiores por parte de las inferiores.
Advisors/Committee Members: Franch Benavent, Ricardo (advisor).
Subjects/Keywords: consumo;
cultura material
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APA ·
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APA (6th Edition):
Rosado Calatayud, L. M. (2014). Sociedad, cultura material y consumo en la Valencia de finales del Antiguo Régimen: un análisis comparativo entre el medio rural y el urbano. (Sueca-Xàtiva, 1700-1824)
. (Doctoral Dissertation). Universitat de Valencia. Retrieved from http://hdl.handle.net/10550/35460
Chicago Manual of Style (16th Edition):
Rosado Calatayud, Luis Miguel. “Sociedad, cultura material y consumo en la Valencia de finales del Antiguo Régimen: un análisis comparativo entre el medio rural y el urbano. (Sueca-Xàtiva, 1700-1824)
.” 2014. Doctoral Dissertation, Universitat de Valencia. Accessed March 02, 2021.
http://hdl.handle.net/10550/35460.
MLA Handbook (7th Edition):
Rosado Calatayud, Luis Miguel. “Sociedad, cultura material y consumo en la Valencia de finales del Antiguo Régimen: un análisis comparativo entre el medio rural y el urbano. (Sueca-Xàtiva, 1700-1824)
.” 2014. Web. 02 Mar 2021.
Vancouver:
Rosado Calatayud LM. Sociedad, cultura material y consumo en la Valencia de finales del Antiguo Régimen: un análisis comparativo entre el medio rural y el urbano. (Sueca-Xàtiva, 1700-1824)
. [Internet] [Doctoral dissertation]. Universitat de Valencia; 2014. [cited 2021 Mar 02].
Available from: http://hdl.handle.net/10550/35460.
Council of Science Editors:
Rosado Calatayud LM. Sociedad, cultura material y consumo en la Valencia de finales del Antiguo Régimen: un análisis comparativo entre el medio rural y el urbano. (Sueca-Xàtiva, 1700-1824)
. [Doctoral Dissertation]. Universitat de Valencia; 2014. Available from: http://hdl.handle.net/10550/35460
Queens University
20.
Holmberg, Rebecca.
Characterization of Electrochemically Formed Coloured Passive Layers on Titanium and Zirconium: Optical, Surface and Corrosion Properties
.
Degree: Chemistry, 2011, Queens University
URL: http://hdl.handle.net/1974/6733
► Electrochemically formed passive layers on titanium and zirconium, and their optical, surface and corrosion properties are presented. With the use of higher applied AC voltages,…
(more)
▼ Electrochemically formed passive layers on titanium and zirconium, and their optical, surface and corrosion properties are presented. With the use of higher applied AC voltages, the passive layers become thicker and more protective of the underlying metal, as determined from thickness measurements by scanning electron microscopy and focused ion beam instruments, as well as passive layer corrosion resistance measurements by electrochemical polarization curve and inductively coupled plasma mass spectrometry experiments. The surface morphology of all samples was studied with atomic force microscopy, profilometry, visible light microscopy, transmission electron microscopy, and finally electron backscattered diffraction experiments. The passive layers were found to be uniform in their surface structure with no cracks or fractures. However, the samples prepared at VAC = 60-80 V showed defects, which were increasingly prevalent at higher VAC. These defects are thought to be attributed to a process of localized electrochemical breakdown. The aforementioned increase in corrosion resistance is in spite of the defects, which were observed for the samples prepared at VAC = 60-80 V. Surface morphology, in relation to optical properties, was also investigated through reflectance spectroscopy measurements. A correlation between grain colouration and light reflected from the sample surface was observed through measurements using visible light microscopy as well as near infrared ultraviolet visible reflectance spectroscopy. These experiments showed a red-shift of wavelength maxima (λmax) values as voltages, and therefore thickness, were increased. This is the reason that different colours are seen for different thicknesses; the red shift causes different wavelengths to be reflected constructively and destructively. Overall, these passive layers are protective of an already remarkable metal and, with greater knowledge of their properties, their potential may be observed in a wide range of applications.
Subjects/Keywords: Material Science
;
Electrochemistry
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APA ·
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APA (6th Edition):
Holmberg, R. (2011). Characterization of Electrochemically Formed Coloured Passive Layers on Titanium and Zirconium: Optical, Surface and Corrosion Properties
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/6733
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):
Holmberg, Rebecca. “Characterization of Electrochemically Formed Coloured Passive Layers on Titanium and Zirconium: Optical, Surface and Corrosion Properties
.” 2011. Thesis, Queens University. Accessed March 02, 2021.
http://hdl.handle.net/1974/6733.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Holmberg, Rebecca. “Characterization of Electrochemically Formed Coloured Passive Layers on Titanium and Zirconium: Optical, Surface and Corrosion Properties
.” 2011. Web. 02 Mar 2021.
Vancouver:
Holmberg R. Characterization of Electrochemically Formed Coloured Passive Layers on Titanium and Zirconium: Optical, Surface and Corrosion Properties
. [Internet] [Thesis]. Queens University; 2011. [cited 2021 Mar 02].
Available from: http://hdl.handle.net/1974/6733.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Holmberg R. Characterization of Electrochemically Formed Coloured Passive Layers on Titanium and Zirconium: Optical, Surface and Corrosion Properties
. [Thesis]. Queens University; 2011. Available from: http://hdl.handle.net/1974/6733
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
21.
Johnson II, Phillip D.
"The Nonchalant Flick of the Carp's Tail": A Material Ecocritical Analysis of US Literature of Carp Introduction and Invasion.
Degree: 2014, University of Nevada – Reno
URL: http://hdl.handle.net/11714/2982
► This dissertation separates American writing about carp into three extended chapters that organize the texts about carp (Cyprinus carpio) according to tropological themes that have…
(more)
▼ This dissertation separates American writing about carp into three extended chapters that organize the texts about carp (Cyprinus carpio) according to tropological themes that have represented carp in different historical-cultural moments: as a pond fish, a trash fish, and an invasive species, or invasive alien species (IAS). In addition, each chapter reads these works through a particular facet of
material ecocriticism, most notably, that of assemblage formation and distributed agencies. Chapter One, "Pond Fish: The Assemblage of Carp Introduction," retells the story of carp introduction as an assemblage of inter- and intra-working agents and quasi-agents. Chapter Two, "Trash Fish: Disflavor as Deviant Agency," reads texts through the concept of "deviant agents" to re-center the story told about the change in public attitudes that turned carp from useful, domesticated fish into trash fish. Chapter Three, "Invasive Fish in Eco-Tragic Narratives," combines approaches from the first two chapters about assemblages and small agencies to examine what I call the eco-tragic narrative of carp invasion. Eco-tragedies frame the carp story using elements of tragedy that run counter to
material ecocritical reading, but are useful in that distinction. Eco-tragedies continue to frame IAS stories to the present day. The epilogue concludes the study by discussing how the carp's relationship with humans continues to change and also discusses the implications of Jane Bennett's notion of horizontal ethics as it applies to carp in the US.
Advisors/Committee Members: Johnson, II, Phillip D. (advisor), Glotfelty, Cheryll (committee member), Slovic, Scott (committee member), Gifford, Justin (committee member), Starrs, Paul F. (committee member), Miller, Glenn C. (committee member).
Subjects/Keywords: Carp; Material Ecocriticism
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Export
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APA (6th Edition):
Johnson II, P. D. (2014). "The Nonchalant Flick of the Carp's Tail": A Material Ecocritical Analysis of US Literature of Carp Introduction and Invasion. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/2982
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):
Johnson II, Phillip D. “"The Nonchalant Flick of the Carp's Tail": A Material Ecocritical Analysis of US Literature of Carp Introduction and Invasion.” 2014. Thesis, University of Nevada – Reno. Accessed March 02, 2021.
http://hdl.handle.net/11714/2982.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Johnson II, Phillip D. “"The Nonchalant Flick of the Carp's Tail": A Material Ecocritical Analysis of US Literature of Carp Introduction and Invasion.” 2014. Web. 02 Mar 2021.
Vancouver:
Johnson II PD. "The Nonchalant Flick of the Carp's Tail": A Material Ecocritical Analysis of US Literature of Carp Introduction and Invasion. [Internet] [Thesis]. University of Nevada – Reno; 2014. [cited 2021 Mar 02].
Available from: http://hdl.handle.net/11714/2982.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Johnson II PD. "The Nonchalant Flick of the Carp's Tail": A Material Ecocritical Analysis of US Literature of Carp Introduction and Invasion. [Thesis]. University of Nevada – Reno; 2014. Available from: http://hdl.handle.net/11714/2982
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Georgia Tech
22.
Han, Kyuhwan.
Magneto-dielectric material characterization and RF antenna design.
Degree: PhD, Electrical and Computer Engineering, 2015, Georgia Tech
URL: http://hdl.handle.net/1853/53863
► A novel material characterization method for magneto-dielectric composite material was proposed. MD materials have been reported as providing new opportunities for effective antenna size reduction…
(more)
▼ A novel
material characterization method for magneto-dielectric composite
material was proposed. MD materials have been reported as providing new opportunities for effective antenna size reduction in many studies. Since MD materials have to be realized through
material synthesis, an accurate measurement method is required to extract them. The proposed method, cavity perturbation technique using substrate integrated waveguide cavity resonator, has been demonstrated through theories, simulations and measurement that it can be used to extract both electric and magnetic properties of the MD composite
material effectively. MD materials using cobalt-fluoropolymer have been synthesized and
material design guidelines for antenna applications are also provided. The benefits of using MD materials on antenna miniaturization was also demonstrated by comparing the performance of an antenna on MD
material to other antennae on high dielectric constant materials and FR-4
material. Through simulations and measurements, the MD
material is a promising solution for next generation smartphone or wearable type applications.
Advisors/Committee Members: Swaminathan, Madhavan (advisor), Liu, Meilin (committee member), Peterson, Andrew F. (committee member), Durgin, Gregory D. (committee member), Pulugurtha, Raj M. (committee member).
Subjects/Keywords: Magneto-dielectric material; Material characterization method; RF antenna design; Ferromagentic material
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APA (6th Edition):
Han, K. (2015). Magneto-dielectric material characterization and RF antenna design. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/53863
Chicago Manual of Style (16th Edition):
Han, Kyuhwan. “Magneto-dielectric material characterization and RF antenna design.” 2015. Doctoral Dissertation, Georgia Tech. Accessed March 02, 2021.
http://hdl.handle.net/1853/53863.
MLA Handbook (7th Edition):
Han, Kyuhwan. “Magneto-dielectric material characterization and RF antenna design.” 2015. Web. 02 Mar 2021.
Vancouver:
Han K. Magneto-dielectric material characterization and RF antenna design. [Internet] [Doctoral dissertation]. Georgia Tech; 2015. [cited 2021 Mar 02].
Available from: http://hdl.handle.net/1853/53863.
Council of Science Editors:
Han K. Magneto-dielectric material characterization and RF antenna design. [Doctoral Dissertation]. Georgia Tech; 2015. Available from: http://hdl.handle.net/1853/53863
KTH
23.
Erlandsson, Lisa.
Cirkulär materialhantering för minskad klimatpåverkan inom byggbranschen.
Degree: Building Technology and Design, 2019, KTH
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259994
► Återvinning av olika varor i dagens samhälle är viktigt för att uppnå minskad miljöpåverkan. Genom att minska uttaget av jungfruligt material och istället använda…
(more)
▼ Återvinning av olika varor i dagens samhälle är viktigt för att uppnå minskad miljöpåverkan. Genom att minska uttaget av jungfruligt material och istället använda återvunnet material kan en positiv klimatpåverkan erhållas. Att eliminera linjära materialflöden till fördel för cirkulära flöden kan ekonomisk vinning uppfyllas via affärsmodeller inom cirkulär ekonomi. Byggsektorn står för en betydande del av miljöpåverkan och resursanvändningen, samt genererat avfall i samhället. Därmed finns stora möjligheter att öka cirkularitet genom bättre system för återvinning och därmed främja en mer hållbar framtid. Från NCC gavs ett uppdrag med syfte att undersöka hur stor andel återvunnet material som byggdes in i deras bostadsprojekt. Genom intervjuer med deras leverantörer undersökte denna studie hur stor andel återvunnet material som deras mest använda byggvaror bestod av. Dessa byggvaror var betong, armering, mineralull, cellplast, gips och kök. Vidare undersöktes vilka möjligheter till återvinning som fanns för respektive vara. Syftet var också att, utöver detta, finna mer miljövänliga alternativ för byggbranschen i allmänhet och i synnerhet för de produkter som i dagsläget har störst förbättringspotential. Resultatet visar att andelen återvunnet material för respektive byggvara var varierande, från 0 % till 96 %. Tillsammans bidrar dessa värden till en total andel för NCC’s bostadsprojekt på 8,5 %. Kunskapen och möjligheten till att öka andelen återvunna material som byggvarorna innehåller finns hos leverantörerna. En faktor till detta var att andrahandsvärdet varierade stort samt att det saknas ekonomiska incitament för att sortera byggavfallet. Slutsatsen är därför att det krävs en ökad kostnad för att ta ut jungfruligt material i kombination med att det måste kosta mer att deponera. Med andra ord, förbrukat material ska inte ses som avfall utan som en resurs för att cirkulär ekonomi ska kunna förverkligas i samhället och därmed bidra till positiv miljöpåverkan och förbättrad resurshushållning. Utbildning, samarbete och personligt engagemang är faktorer som krävs för att denna samhällsomställning ska kunna ske.
Recycling of waste is important for the environment in today ́s society. Through less use of new raw material and increased use of recycled material, the climate change can be battled. To eliminate linear flow of material in favour of circular is a part of circular economy. The construction industry contributes to a significant part of both the energy consumption and the amount of waste, and therefore has great opportunities to recycle NCC wants to know how much recycled material they used in their housing projects. Through interviews with their suppliers, this study investigates how much recycled material some of their most used building goods (for example concrete, reinforcement and isolation) contained. Further, the opportunities for recycling of the different types of building goods were analysed. The…
Subjects/Keywords: circular material handling; recycled material; construction material; material recycling; cirkulär materialhantering; återvunnet material; byggmaterial; materialåtervinning; Construction Management; Byggproduktion
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APA (6th Edition):
Erlandsson, L. (2019). Cirkulär materialhantering för minskad klimatpåverkan inom byggbranschen. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259994
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):
Erlandsson, Lisa. “Cirkulär materialhantering för minskad klimatpåverkan inom byggbranschen.” 2019. Thesis, KTH. Accessed March 02, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259994.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Erlandsson, Lisa. “Cirkulär materialhantering för minskad klimatpåverkan inom byggbranschen.” 2019. Web. 02 Mar 2021.
Vancouver:
Erlandsson L. Cirkulär materialhantering för minskad klimatpåverkan inom byggbranschen. [Internet] [Thesis]. KTH; 2019. [cited 2021 Mar 02].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259994.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Erlandsson L. Cirkulär materialhantering för minskad klimatpåverkan inom byggbranschen. [Thesis]. KTH; 2019. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259994
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Linköping University
24.
Phiri, Tapiwanashe.
Simmulating pullout forces in particleboard.
Degree: Solid Mechanics, 2019, Linköping University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-164242
► Pull-out forces of screws and connectors in particleboard are particularly important when designing for strength and, or assembly in the furniture industry. The aim…
(more)
▼ Pull-out forces of screws and connectors in particleboard are particularly important when designing for strength and, or assembly in the furniture industry. The aim of this thesis was to develop a simulation model of particleboard that can predict pull-out forces of screws better than the currently used simulation model at IKEA of Sweden. The developed model was validated against experimental results from pull-out tests carried out by IKEA. Material properties for particleboard are determined from experiments previously carried out at IKEA test labs unless stated otherwise in the report. The authors did not carry out any tests. In order to simulate the pull-out forces of a screw, the finite element method was employed, simulation models from three different material models selected from the Finite Element Analysis (FEA) software LS-DYNA. The first material model considered Mat_143, a wood material model based on the Hashin failure criterion and used to develop simulation model 1. The second material considered, Mat_122 3D, based on Hill’s plasticity theory, was used with Mat_Add_Generalised_Damage to allow for incremental damage accumulation and failure. This was simulation model 2. The third one, Mat_221 which represents an orthotropic material with simplified damage, was used to develop simulation model 3. Experimental test results for tensile test, bending test, shear test and, finally, the screw pull-out test was used to validate the simulation models. Before the scale validation, a single hexahedral element was simulated to evaluate the accuracy of the simulation models and to get a better understanding of the limitations of the material models. A mesh type and convergence study was carried out where it was concluded that the first- and second-order hexahedral and tetrahedral elements could be employed for the full model simulations, giving a sufficiently accurate result, i.e. matching the experimental results by at least 86%. An element size range of 1-3 mm was enough for quasi-static load cases and while an element size range 0.15-3 mm was relevant for dynamic load cases. Model 1 was abandoned when it was discovered the material model was not suitable for predicting material behaviour other than that of wood for a large mesh. The remaining two simulation models were evaluated for tensile, shear and bending load cases. Simulation model 2 predicted both tensile and bending forces with an accuracy of 99% or higher, and predicted shear forces with an accuracy of 86%. Simulation model 3 predicts both tensile and shear forces with an accuracy of 98% or higher and predicted bending forces with an accuracy of 86%. For the screw pull-out test, simulation models 2 and 3 under-predicted the pull-out forces significantly due to premature shear failure.iiiThe currently used particleboard simulation model is referred to as simulation model 4 throughout the report. Simulation model 4 was the most accurate simulation model for predicting pull-out forces in particleboard.
Subjects/Keywords: transversely isotropic material; orthotropic material; particleboard; finite element analysis; material model; Applied Mechanics; Teknisk mekanik
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APA (6th Edition):
Phiri, T. (2019). Simmulating pullout forces in particleboard. (Thesis). Linköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-164242
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):
Phiri, Tapiwanashe. “Simmulating pullout forces in particleboard.” 2019. Thesis, Linköping University. Accessed March 02, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-164242.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Phiri, Tapiwanashe. “Simmulating pullout forces in particleboard.” 2019. Web. 02 Mar 2021.
Vancouver:
Phiri T. Simmulating pullout forces in particleboard. [Internet] [Thesis]. Linköping University; 2019. [cited 2021 Mar 02].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-164242.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Phiri T. Simmulating pullout forces in particleboard. [Thesis]. Linköping University; 2019. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-164242
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Brunel University
25.
Suwan, Teewara.
Development of self-cured geopolymer cement.
Degree: PhD, 2016, Brunel University
URL: http://bura.brunel.ac.uk/handle/2438/12975
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.690874
► To support the concept of environmentally friendly materials and sustainable development, the low-carbon cementitious materials have been extensively studied to reduce amount of CO2 emission…
(more)
▼ To support the concept of environmentally friendly materials and sustainable development, the low-carbon cementitious materials have been extensively studied to reduce amount of CO2 emission to the atmosphere. One of the efforts is to promote alternative cementitious binders by utilizing abundant alumina-silicate wastes from the industrial sectors (e.g. fly ash or furnace slag), among which “Geopolymer (GP) cement” has received most attention as it can perform a wide variety of behaviours, in addition to cost reduction and less environmental impacts. The most common geopolymer production, fly ash-based, gained some strength with very slow rate at ambient temperature, while the strength is evidently improved when cured in high (above room) temperature, e.g. over 40°C. The major challenge is to step over the limitation of heat curing process and inconvenience in practice. In this study, the testing schemes of (i) GP manufacturing in various processes, (ii) inclusion of ordinary Portland cement (OPC) in GP mixture, called GeoPC and (iii) GeoPC manufactured with dry-mixing method, have been intensively investigated through mechanical testing (Setting time, Compressive strength and Internal heat measurement) and mechanism analysis (XRD, FTIR, SEM and EDXA) in order to develop the geopolymers, achieving reasonable strength without external sources of heat curing. It is found that the proposed (dry) mixing process could have generated intensive heat liberation which was observed as a comparable factor to heat curing from any other external sources, enhancing the curing regime of the mixture. The additional calcium content in the developed GeoPC system not only resulted in an improvement of an early strength by the extra precipitation of calcium compounds (C,N-A-S-H), but also provided a latent heat from the reaction of its high potential energy compounds (e.g. OPC or alkaline activators). The developments from these approaches could lead to geopolymer production to achieve reasonable strength in ambient curing temperature known as “Self-cured geopolymer cement”, without external heat, and hence provide construction industry viable technologies of applying geopolymers in on-site and off-site construction.
Subjects/Keywords: 666; Construction material; Geopolymer cement; Cement and concrete; Engineering material; Material science
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APA (6th Edition):
Suwan, T. (2016). Development of self-cured geopolymer cement. (Doctoral Dissertation). Brunel University. Retrieved from http://bura.brunel.ac.uk/handle/2438/12975 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.690874
Chicago Manual of Style (16th Edition):
Suwan, Teewara. “Development of self-cured geopolymer cement.” 2016. Doctoral Dissertation, Brunel University. Accessed March 02, 2021.
http://bura.brunel.ac.uk/handle/2438/12975 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.690874.
MLA Handbook (7th Edition):
Suwan, Teewara. “Development of self-cured geopolymer cement.” 2016. Web. 02 Mar 2021.
Vancouver:
Suwan T. Development of self-cured geopolymer cement. [Internet] [Doctoral dissertation]. Brunel University; 2016. [cited 2021 Mar 02].
Available from: http://bura.brunel.ac.uk/handle/2438/12975 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.690874.
Council of Science Editors:
Suwan T. Development of self-cured geopolymer cement. [Doctoral Dissertation]. Brunel University; 2016. Available from: http://bura.brunel.ac.uk/handle/2438/12975 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.690874
Loughborough University
26.
Guarnera, Dar'ya.
Image based surface reflectance remapping for consistent and tool independent material appearence.
Degree: PhD, 2018, Loughborough University
URL: http://hdl.handle.net/2134/33410
► Physically-based rendering in Computer Graphics requires the knowledge of material properties other than 3D shapes, textures and colors, in order to solve the rendering equation.…
(more)
▼ Physically-based rendering in Computer Graphics requires the knowledge of material properties other than 3D shapes, textures and colors, in order to solve the rendering equation. A number of material models have been developed, since no model is currently able to reproduce the full range of available materials. Although only few material models have been widely adopted in current rendering systems, the lack of standardisation causes several issues in the 3D modelling workflow, leading to a heavy tool dependency of material appearance. In industry, final decisions about products are often based on a virtual prototype, a crucial step for the production pipeline, usually developed by a collaborations among several departments, which exchange data. Unfortunately, exchanged data often tends to differ from the original, when imported into a different application. As a result, delivering consistent visual results requires time, labour and computational cost. This thesis begins with an examination of the current state of the art in material appearance representation and capture, in order to identify a suitable strategy to tackle material appearance consistency. Automatic solutions to this problem are suggested in this work, accounting for the constraints of real-world scenarios, where the only available information is a reference rendering and the renderer used to obtain it, with no access to the implementation of the shaders. In particular, two image-based frameworks are proposed, working under these constraints. The first one, validated by means of perceptual studies, is aimed to the remapping of BRDF parameters and useful when the parameters used for the reference rendering are available. The second one provides consistent material appearance across different renderers, even when the parameters used for the reference are unknown. It allows the selection of an arbitrary reference rendering tool, and manipulates the output of other renderers in order to be consistent with the reference.
Subjects/Keywords: 006.6; Material appearance; BRDF; Material representation; Material acquisition; Computer graphics; Consistent appearance
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APA ·
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MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Guarnera, D. (2018). Image based surface reflectance remapping for consistent and tool independent material appearence. (Doctoral Dissertation). Loughborough University. Retrieved from http://hdl.handle.net/2134/33410
Chicago Manual of Style (16th Edition):
Guarnera, Dar'ya. “Image based surface reflectance remapping for consistent and tool independent material appearence.” 2018. Doctoral Dissertation, Loughborough University. Accessed March 02, 2021.
http://hdl.handle.net/2134/33410.
MLA Handbook (7th Edition):
Guarnera, Dar'ya. “Image based surface reflectance remapping for consistent and tool independent material appearence.” 2018. Web. 02 Mar 2021.
Vancouver:
Guarnera D. Image based surface reflectance remapping for consistent and tool independent material appearence. [Internet] [Doctoral dissertation]. Loughborough University; 2018. [cited 2021 Mar 02].
Available from: http://hdl.handle.net/2134/33410.
Council of Science Editors:
Guarnera D. Image based surface reflectance remapping for consistent and tool independent material appearence. [Doctoral Dissertation]. Loughborough University; 2018. Available from: http://hdl.handle.net/2134/33410
NSYSU
27.
Dai, Hong-kwang.
The cost minimization of steel material profolio using dynamic programming.
Degree: Master, Information Management, 2009, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0818109-155333
► In ordert to increasing the capacity of stocking and integration in the process of optimizing the internal cost in steel industry. The cost of material…
(more)
▼ In ordert to increasing the capacity of stocking and integration in the process of optimizing the internal cost in steel industry. The cost of
material profolio is usually being ignored during opmization. Experiences-based decision paten still being carried out in
material profolio in this industry.Thus the Inventory and Manufacture cost are losing inadvertently. This study aims at obtaining the minimum
material profolio cost so that we provide a model concerned with cost and element limitation of target product.Using dynamic programming into
material-profolio decision making process. We divided
material profolio into three steps, transforming the productive limitations into mathematic constrains,and implememting by software.The real-case data is given to estabilish the model database.Comparing our data with the real data,we found that with the approach, we significately reduced and the cost and variety of
material profolio in different critiria
Advisors/Committee Members: Ho Chin - Fu (chair), Liu Ping-Yang (committee member), Tu Yi-Min (chair).
Subjects/Keywords: material profolio; dynamic programming; scheduling
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Manager
APA (6th Edition):
Dai, H. (2009). The cost minimization of steel material profolio using dynamic programming. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0818109-155333
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):
Dai, Hong-kwang. “The cost minimization of steel material profolio using dynamic programming.” 2009. Thesis, NSYSU. Accessed March 02, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0818109-155333.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Dai, Hong-kwang. “The cost minimization of steel material profolio using dynamic programming.” 2009. Web. 02 Mar 2021.
Vancouver:
Dai H. The cost minimization of steel material profolio using dynamic programming. [Internet] [Thesis]. NSYSU; 2009. [cited 2021 Mar 02].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0818109-155333.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Dai H. The cost minimization of steel material profolio using dynamic programming. [Thesis]. NSYSU; 2009. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0818109-155333
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
NSYSU
28.
Ho, Shou-yi.
A carbazole derivative as a host material with high triplet energy for phosphorescence organic light emitting diode.
Degree: Master, Electro-Optical Engineering, 2012, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0809112-144514
► Solid state lighting industry is booming in recent years because of the green energy requirement. Therefore, phosphorescent OLEDs using phosphorescent emitters doped into charge-transporting hosts…
(more)
▼ Solid state lighting industry is booming in recent years because of the green energy requirement. Therefore, phosphorescent OLEDs using phosphorescent emitters doped into charge-transporting hosts as emissive layers (EMLs) have attracted extensive interest due to their highly efficient emission compared to conventional fluorescent OLEDs, through radiative harvesting of both electro-generated singlet and triplet excitons.
To achieve better charge balance and device performance, many researchers focus on developing new phosphorescent host materials with bipolar charge transporting property. In this work, we successfully designed and synthesized a host
material CzppT containing hole-transporting carbazole and electron-transporting pyridine and investigated the physical properties. With a high triplet energy, CzppT is considered a promising universal host
material and has been applied to phosphorescent OLEDs of blue/white colors. Blue/white OLEDs based on CzppT as host and Firpic/Ir(piq)2(acac) as dopant materials show maximum external quantum efficiencies (11.0% for blue, 11.32% for white) and CIE coordinates [(0.18,0.41)for blue, (0.32,0.36) for white)]. The results indicate that the bipolar host CzppT with high triplet energy has potential in manufacturing blue and white OLEDs for display or lighting applications.
Advisors/Committee Members: Su-Hua Yang (chair), Yu-Kai Han (chair), Wen-Yao Huang (chair), Ko-Shan Ho (chair), Mei-Ying Chang (committee member).
Subjects/Keywords: carbazole; host material; PhOLEDs
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APA ·
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Export
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Manager
APA (6th Edition):
Ho, S. (2012). A carbazole derivative as a host material with high triplet energy for phosphorescence organic light emitting diode. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0809112-144514
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):
Ho, Shou-yi. “A carbazole derivative as a host material with high triplet energy for phosphorescence organic light emitting diode.” 2012. Thesis, NSYSU. Accessed March 02, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0809112-144514.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ho, Shou-yi. “A carbazole derivative as a host material with high triplet energy for phosphorescence organic light emitting diode.” 2012. Web. 02 Mar 2021.
Vancouver:
Ho S. A carbazole derivative as a host material with high triplet energy for phosphorescence organic light emitting diode. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Mar 02].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0809112-144514.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ho S. A carbazole derivative as a host material with high triplet energy for phosphorescence organic light emitting diode. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0809112-144514
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Dalhousie University
29.
McLeod, Amanda.
ARCHITECTURE AS A CULTURAL TOOL: A HOUSING PROPOSAL FOR A
CREE COMMUNITY ON THE WESTERN JAMES BAY.
Degree: M. Arch., Department of Architecture, 2011, Dalhousie University
URL: http://hdl.handle.net/10222/14084
► This thesis is a northern response to the dwelling culture and housing shortage of the Cree community in Moosonee, Ontario, located on the Western James…
(more)
▼ This thesis is a northern response to the dwelling
culture and housing shortage of the Cree community in Moosonee,
Ontario, located on the Western James Bay. The program of this
thesis centres on housing, shared workshop space, and a public
room, all designed specifically for those with the greatest need,
multi-generational families, the elderly, and single parents with
children. By anchoring the project with the premise of home as a
zero point, a necessary place of beginning, I examined the typology
of the house and its ability to respond to both landscape and
culture. The housing responds to existing patterns in
material
culture, social structure, and ways of experiencing the land.
Through this project I have investigated the myriad ways in which
architecture can act as a cultural tool that reaffirms a sense of
place and responds to living patterns and the northern
climate.
Advisors/Committee Members: Peter Sassenroth (external-examiner), Steve Parcell (graduate-coordinator), Jane Abbott, Emanuel Jannsch (thesis-reader), Richard Kroeker (thesis-supervisor), Not Applicable (ethics-approval), Not Applicable (manuscripts), Not Applicable (copyright-release).
Subjects/Keywords: Housing; Cree; northern; material culture
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APA (6th Edition):
McLeod, A. (2011). ARCHITECTURE AS A CULTURAL TOOL: A HOUSING PROPOSAL FOR A
CREE COMMUNITY ON THE WESTERN JAMES BAY. (Masters Thesis). Dalhousie University. Retrieved from http://hdl.handle.net/10222/14084
Chicago Manual of Style (16th Edition):
McLeod, Amanda. “ARCHITECTURE AS A CULTURAL TOOL: A HOUSING PROPOSAL FOR A
CREE COMMUNITY ON THE WESTERN JAMES BAY.” 2011. Masters Thesis, Dalhousie University. Accessed March 02, 2021.
http://hdl.handle.net/10222/14084.
MLA Handbook (7th Edition):
McLeod, Amanda. “ARCHITECTURE AS A CULTURAL TOOL: A HOUSING PROPOSAL FOR A
CREE COMMUNITY ON THE WESTERN JAMES BAY.” 2011. Web. 02 Mar 2021.
Vancouver:
McLeod A. ARCHITECTURE AS A CULTURAL TOOL: A HOUSING PROPOSAL FOR A
CREE COMMUNITY ON THE WESTERN JAMES BAY. [Internet] [Masters thesis]. Dalhousie University; 2011. [cited 2021 Mar 02].
Available from: http://hdl.handle.net/10222/14084.
Council of Science Editors:
McLeod A. ARCHITECTURE AS A CULTURAL TOOL: A HOUSING PROPOSAL FOR A
CREE COMMUNITY ON THE WESTERN JAMES BAY. [Masters Thesis]. Dalhousie University; 2011. Available from: http://hdl.handle.net/10222/14084
UCLA
30.
Li, Mufan.
Rational design of platinum-based ultrafine nanowire material for superior electro-catalytic properties.
Degree: Chemistry, 2017, UCLA
URL: http://www.escholarship.org/uc/item/8w49k0g3
► Oxygen reduction reaction (ORR) and hydrogen evolution (HER) are two critical electro-chemical reactions for proton exchange membrane fuel cell (PEMFC) applications. However, both ORR and…
(more)
▼ Oxygen reduction reaction (ORR) and hydrogen evolution (HER) are two critical electro-chemical reactions for proton exchange membrane fuel cell (PEMFC) applications. However, both ORR and HER need catalysts to overcome their respective kinetic barrier, and noble metal platinum has been proved to be the most active element to catalyze both reactions. Due to the extreme sacristy and high price of Pt, promoting the Pt mass activity (activity per given Pt mass) present the key challenge for electro-catalyst design. Improving the Pt mass activity should optimize both the specific activity and the electrochemical active surface area (ECSA) simultaneously. In first part of my dissertation, we show that solution-synthesized Pt/NiO core/shell nanowires can be readily converted into PtNi alloy nanowires through a post-synthesis thermal annealing process, and then transformed into jagged Pt nanowires (J-PtNWs) via an electrochemical dealloying. The jagged nanowires exhibit an ECSA of 118 meter square per gram Pt and a specific activity of 11.5 milliamperes per square centimeter for ORR (at 0.9 Volt versus the reversible hydrogen electrode) for a mass activity of 13.6 ampere per milligram Pt, or nearly doubles previously reported best values. Reactive molecular dynamics simulations suggest that highly stressed, undercoordinated rhombahedral-rich surface configurations of the jagged nanowires enhanced ORR activity versus more relaxed surfaces. In second part of my dissertation, we developed a controlled electro-chemical approach to modify jagged platinum nanowire with nickel hydroxide species [J-PtNWs/Ni(OH)2]. The result materials feature rich surface defects and locally decorated Ni(OH)2 species as bifunctional catalysts for highly efficient electro-catalytic water splitting. Electrocatalytic studies show that J-PtNWs/Ni(OH)2 exhibits extraordinary activity for hydrogen evolution reactions (HER) with a record high mass activity of 11.8 A/mgPt at -70 mV versus reversible hydrogen electrode (RHE) at pH 14, which is 17 times higher than that of Pt/C catalyst and 9 times higher than best HER performance reported to date. Density functional theory calculations demonstrate that defective surface offers an ensemble of highly active sites, and that surface Ni(OH)2 species further tune the hydrogen binding energy towards optimal value. Moreover, we further show such surface modification could also greatly enhance the catalytic activity towards the oxygen evolution reaction (OER) and enable a bifunctional catalyst for highly efficient water splitting with a mass activity of 0.6 A/mgPt at 1.6 V vs. RHE.
Subjects/Keywords: Chemistry; electro-catalysis; nano material
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APA (6th Edition):
Li, M. (2017). Rational design of platinum-based ultrafine nanowire material for superior electro-catalytic properties. (Thesis). UCLA. Retrieved from http://www.escholarship.org/uc/item/8w49k0g3
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):
Li, Mufan. “Rational design of platinum-based ultrafine nanowire material for superior electro-catalytic properties.” 2017. Thesis, UCLA. Accessed March 02, 2021.
http://www.escholarship.org/uc/item/8w49k0g3.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Li, Mufan. “Rational design of platinum-based ultrafine nanowire material for superior electro-catalytic properties.” 2017. Web. 02 Mar 2021.
Vancouver:
Li M. Rational design of platinum-based ultrafine nanowire material for superior electro-catalytic properties. [Internet] [Thesis]. UCLA; 2017. [cited 2021 Mar 02].
Available from: http://www.escholarship.org/uc/item/8w49k0g3.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Li M. Rational design of platinum-based ultrafine nanowire material for superior electro-catalytic properties. [Thesis]. UCLA; 2017. Available from: http://www.escholarship.org/uc/item/8w49k0g3
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
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