subject:(Harvesting)

Rutgers University

1. Mahdavi-Doost, Hajar, 1980-. Energy-aware reliable communication.

Degree: PhD, Electrical and Computer Engineering, 2016, Rutgers University

URL: https://rucore.libraries.rutgers.edu/rutgers-lib/50039/

► Emerging applications of short-range communication such as the Internet of Things and body area networks highlight the importance of processing energy, as compared to transmit… (more)

▼ Emerging applications of short-range communication such as the Internet of Things and body area networks highlight the importance of processing energy, as compared to transmit energy. In this thesis, we investigate fundamental limits of reliable communication when receiver processing is powered by random energy sources and subject to constraints on energy storage. We propose a receiver model that captures the trade-off between sampling energy and decoding energy. The model relies on the decoding energy being a decreasing function of the capacity gap between the code rate and the channel capacity. The receiver can save energy in sampling by dropping a fraction of samples, at the cost of reducing the effective capacity and thus increasing the energy needed for decoding. While sampling and decoding energies are typically comparable, the key issue is that the sampling is a real-time process; the samples must be collected during the transmission time of that packet. Thus the energy harvesting rate and battery size may constrain the sampling rate. This model allows us to characterize the maximum throughput of a basic communication channel with limited processing energy. This is done based on striking the balance between the sampling and decoding energy, subject to limited random arrival of energy, and limited battery size. We further extend this result to multi-user scenarios, where multiple transmitters communicate with a single receiver with limited energy. We introduce the concept of receive multi-user diversity, in which the receiver decodes the messages experiencing the strongest channels in order to reduce the decoding energy per user. Next, we propose using hybrid automatic retransmission request (HARQ) with soft combining to reduce the processing energy and improve the throughput under limited receiver energy. In this protocol, the receiver keeps requesting additional redundancy in order to increase the capacity gap, which in turn reduces the processing energy. We compare the performance of incremental redundancy (IR) HARQ, and Repetition-HARQ. In these systems, the decoding energy is a decreasing function of the capacity gap but an increasing function of the code-length. The IR-HARQ protocol yields a better capacity gap, but increases the code-length, while Repetition-HARQ offers less improvement in the capacity gap, but does not increase the effective code-length. Thus, contrary to systems without receiver energy constraints in which IR-HARQ always performs better, here, depending on the system parameters, Repetition-HARQ can outperform IR-HARQ. Finally, we study energy efficiency and energy harvesting in LTE networks. We formulate a single-cell downlink scheduling problem that enforces constraints on the selection of transmission parameters. Linear cost constraints on the set of channels are also imposed in order to accommodate energy efficiency considerations. We show that the resulting problem is NP-hard and we propose a deterministic multiplicative- update algorithm for which we establish… Advisors/Committee Members: Yates, Roy D. (chair), Mandayam, Narayan (internal member), Soljanin, Emina (internal member), Spasojevic, Predrag (internal member), Prasad, Narayan (outside member).

Subjects/Keywords: Energy harvesting

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APA (6^th Edition):

Mahdavi-Doost, Hajar, 1. (2016). Energy-aware reliable communication. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/50039/

Chicago Manual of Style (16^th Edition):

Mahdavi-Doost, Hajar, 1980-. “Energy-aware reliable communication.” 2016. Doctoral Dissertation, Rutgers University. Accessed March 05, 2021. https://rucore.libraries.rutgers.edu/rutgers-lib/50039/.

MLA Handbook (7^th Edition):

Mahdavi-Doost, Hajar, 1980-. “Energy-aware reliable communication.” 2016. Web. 05 Mar 2021.

Vancouver:

Mahdavi-Doost, Hajar 1. Energy-aware reliable communication. [Internet] [Doctoral dissertation]. Rutgers University; 2016. [cited 2021 Mar 05]. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/50039/.

Council of Science Editors:

Mahdavi-Doost, Hajar 1. Energy-aware reliable communication. [Doctoral Dissertation]. Rutgers University; 2016. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/50039/

Nelson Mandela Metropolitan University

2. Mathelele, Ouma Florah. A technical survey of the South African harvesting machine population.

Degree: 2019, Nelson Mandela Metropolitan University

URL: http://hdl.handle.net/10948/40999

► South Africa adopted the practice of conducting technical surveys from Austria three decades ago. The Austrian technical survey was used to model the South African… (more)

▼ South Africa adopted the practice of conducting technical surveys from Austria three decades ago. The Austrian technical survey was used to model the South African technical survey. The survey was conducted with the aim of providing the forestry industry with a detailed analysis of the state of timber harvesting operations. The first technical survey in South Africa was conducted in 1987, and the second one in 1998. The most recent study was carried out in 2007. Since 2007, there has been no other technical survey of a similar nature conducted on harvesting and transport operations. There is no recent information quantifying the volumes harvested, identifying harvesting systems and methods used, and determining volumes harvested using these systems and methods. Furthermore, no updated information exists on the type and quantities of timber trucks transporting the volume. A fourth technical survey that quantifies and analyses these aspects in harvesting operations, therefore, was due. The fourth technical survey aimed at quantifying the number of harvesting machines and timber trucks. The survey further investigated the drivers behind the mechanisation and system preference. The four technical surveys were compared to identify trends in harvesting machines and methods. The data were collected from grower companies, harvesting and transport contractors and small-scale timber growers. Questionnaires were sent to all potential respondents from the three target groups, and interviews were later conducted with selected respondents. The harvesting machines were quantified per function i.e. felling, extraction, processing and loading. The results showed that some machines were more common compared to other machines performing the same function. Mechanised felling machines sampled had more units in the fourth survey than the previous surveys had. Of the 10.6 million m3 volume surveyed in 2017, chainsaws had 1 048 units, and their number had decreased from the 5 000 sampled in the first technical survey in 1987 that sampled about 12.8 million m3. Harvesters and feller bunchers also increased from zero in the first technical survey to 94 and 13, respectively in the fourth survey. The drivers towards the increased use of mechanised equipment were identified as safety and health, ergonomics, productivity, labour issues, operational costs, terrain, and company policies. Despite the introduction of mechanisation, however, the use of manual labour was evident in hardwood processing and loading operations. Manual debarking was more common than mechanised debarking in the fourth technical survey. When comparing all four technical surveys, the cut to length (CTL) harvesting method was dominant in hardwood; harvesting 79% of the volume sampled in the 2017 survey. The full tree method was barely applied in the first three technical surveys and in the 2007 survey, it was absent. It was only in the fourth technical survey that the method was applied, felling 27% and 9% of the sampled volumes in softwood and hardwood, respectively. The…

Subjects/Keywords: Harvesting – South Africa; Energy harvesting – South Africa

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APA (6^th Edition):

Mathelele, O. F. (2019). A technical survey of the South African harvesting machine population. (Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/40999

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mathelele, Ouma Florah. “A technical survey of the South African harvesting machine population.” 2019. Thesis, Nelson Mandela Metropolitan University. Accessed March 05, 2021. http://hdl.handle.net/10948/40999.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mathelele, Ouma Florah. “A technical survey of the South African harvesting machine population.” 2019. Web. 05 Mar 2021.

Vancouver:

Mathelele OF. A technical survey of the South African harvesting machine population. [Internet] [Thesis]. Nelson Mandela Metropolitan University; 2019. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/10948/40999.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mathelele OF. A technical survey of the South African harvesting machine population. [Thesis]. Nelson Mandela Metropolitan University; 2019. Available from: http://hdl.handle.net/10948/40999

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester

3. Qi, Shaofan. Investigation of a novel multiresonant beam energy harvester and a complex conjugate matching circuit.

Degree: 2011, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:120197

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The aim of the work described in this thesis is firstly to improve the collection of vibration energy for piezoelectric cantilever harvesters, by a mechanical… (more)

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The aim of the work described in this thesis is firstly to improve the collection of vibration energy for piezoelectric cantilever harvesters, by a mechanical technique, so that the devices can harvest energy over a wider bandwidth. Secondly to investigate a new circuit topology for achieving complex conjugate load matching to the piezoelectric harvester. The thesis has been divided into two parts – the mechanical approach and the electrical approach.For the mechanical approach, a novel multiresonant beam, comprising piezoelectric fiber composites on a clamped-clamped beam and side mounted cantilevers, was proposed. The side cantilevers are tuned by tip masses to be resonant at different frequencies. A Rayleigh-Ritz model was developed to predict the vibration response of the proposed model multiresonant beam. This model showed that the bandwidth of the multiresonant beam was increased over that of a single cantilever harvester.A multiresonant beam for energy harvesting was experimentally tested and compared with a single cantilever energy harvester. The transmissibility and voltage responses were investigated, the beam showed a wide frequency response between 14.5Hz and 31Hz, whereas the single cantilever only showed one resonant frequency. Therefore the multiresonant beam system is feasible for wide band energy harvesting.For the electrical approach, the task was to investigate complex conjugate impedance matching for the piezoelectric energy harvesters, so that the output impedance from the piezoelectric harvester can be reduced, and maximum energy extracted from the device with a possibility of frequency tuning. A new amplified inductor circuit was proposed to enable the capacitive output impedance of the piezoelectric device to be cancelled. Experimental and software simulations are provided to verify the theoretical predictions.A prototype amplified inductor circuit was simulated and tested. The results showed that a variable effective inductance was achieved. However the circuit is lossy due to imperfections within the system, and needs further work to eliminate these imperfections.

N/A

Advisors/Committee Members: Shuttleworth, Roger.

Subjects/Keywords: piezoelectric; energy harvesting

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APA (6^th Edition):

Qi, S. (2011). Investigation of a novel multiresonant beam energy harvester and a complex conjugate matching circuit. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:120197

Chicago Manual of Style (16^th Edition):

Qi, Shaofan. “Investigation of a novel multiresonant beam energy harvester and a complex conjugate matching circuit.” 2011. Doctoral Dissertation, University of Manchester. Accessed March 05, 2021. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:120197.

MLA Handbook (7^th Edition):

Qi, Shaofan. “Investigation of a novel multiresonant beam energy harvester and a complex conjugate matching circuit.” 2011. Web. 05 Mar 2021.

Vancouver:

Qi S. Investigation of a novel multiresonant beam energy harvester and a complex conjugate matching circuit. [Internet] [Doctoral dissertation]. University of Manchester; 2011. [cited 2021 Mar 05]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:120197.

Council of Science Editors:

Qi S. Investigation of a novel multiresonant beam energy harvester and a complex conjugate matching circuit. [Doctoral Dissertation]. University of Manchester; 2011. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:120197

Cornell University

4. Dietl, John. Elastodynaimc Systems: Ornithopters And Power Harvesting.

Degree: PhD, Mechanical Engineering, 2011, Cornell University

URL: http://hdl.handle.net/1813/33546

► Ornithopters are air vehicles that fly using flapping wings as lift and propulsion. The study of ornithopter flight dynamics is complicated by time-varying aerodynamics and… (more)

Subjects/Keywords: Ornithopter; Power Harvesting

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APA (6^th Edition):

Dietl, J. (2011). Elastodynaimc Systems: Ornithopters And Power Harvesting. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/33546

Chicago Manual of Style (16^th Edition):

Dietl, John. “Elastodynaimc Systems: Ornithopters And Power Harvesting.” 2011. Doctoral Dissertation, Cornell University. Accessed March 05, 2021. http://hdl.handle.net/1813/33546.

MLA Handbook (7^th Edition):

Dietl, John. “Elastodynaimc Systems: Ornithopters And Power Harvesting.” 2011. Web. 05 Mar 2021.

Vancouver:

Dietl J. Elastodynaimc Systems: Ornithopters And Power Harvesting. [Internet] [Doctoral dissertation]. Cornell University; 2011. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1813/33546.

Council of Science Editors:

Dietl J. Elastodynaimc Systems: Ornithopters And Power Harvesting. [Doctoral Dissertation]. Cornell University; 2011. Available from: http://hdl.handle.net/1813/33546

Penn State University

5. Depenbusch, Nathan Thomas. Atmospheric Energy Harvesting for Small Uninhabited Aircraft by Gust Soaring .

Degree: 2011, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/11934

► Applying bird-inspired flight planning and control techniques to small robotic aircraft can greatly improve flight performance. This paper discusses a method for improving cruise performance… (more)

Subjects/Keywords: gust energy harvesting

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APA (6^th Edition):

Depenbusch, N. T. (2011). Atmospheric Energy Harvesting for Small Uninhabited Aircraft by Gust Soaring . (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/11934

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Depenbusch, Nathan Thomas. “Atmospheric Energy Harvesting for Small Uninhabited Aircraft by Gust Soaring .” 2011. Thesis, Penn State University. Accessed March 05, 2021. https://submit-etda.libraries.psu.edu/catalog/11934.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Depenbusch, Nathan Thomas. “Atmospheric Energy Harvesting for Small Uninhabited Aircraft by Gust Soaring .” 2011. Web. 05 Mar 2021.

Vancouver:

Depenbusch NT. Atmospheric Energy Harvesting for Small Uninhabited Aircraft by Gust Soaring . [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Mar 05]. Available from: https://submit-etda.libraries.psu.edu/catalog/11934.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Depenbusch NT. Atmospheric Energy Harvesting for Small Uninhabited Aircraft by Gust Soaring . [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/11934

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rice University

6. Kazem Pour, Mohammad. Micrometer Scale Sensors Using Optical Energy Harvesting.

Degree: MS, Engineering, 2017, Rice University

URL: http://hdl.handle.net/1911/105540

► Single-chip millimeter-sized sensors with wireless energy harvesting ca- pabilities are receiving increasing attention because of the rise of Internet of Things (IoT) applications. However, there… (more)

▼ Single-chip millimeter-sized sensors with wireless energy harvesting ca- pabilities are receiving increasing attention because of the rise of Internet of Things (IoT) applications. However, there are certain applications with stricter size requirements. For example, in oil and gas elds, sensors are needed to penetrate to the fractures where the measurement needs to be done, and then retrieved later. After retrieving the sensors, the stored data must be read wirelessly. This means the sensor needs to be small enough to t between sand particles. In addition, biomedical applications often need sensors able to be injected into the patient's body. These sen- sors also have strict size requirements. A good estimate of size for both of the above applications would be 100 m 100 m 100 m. Conventional millimeter-sized chips use RF and microwave communica- tion. However, two problems arise in smaller sensors: energy transfer and communication. As a general rule, energy transfer and communication in dimensions smaller than 1mm becomes ine cient due to small antenna size. As we approach the micrometer regime, this problem gets more severe and makes it impossible to use conventional RF and microwave communication links. A wired link to the chip is also impossible since any practical bond pad is simply too large or too fragile. Hence, a more compact method of communication is needed. To address the above challenges, we have designed the smallest silicon- based chip that can receive power through a free-space optical link and communicate back using an optical transmitter or through a conducting liquid such as water. Because optical systems operate at extremely small wavelengths, they can be good candidates for replacing current communi- cation systems. We demonstrated that one can exploit this fact and tackle the applications mentioned above. We designed a micrometer scale chip able to harvest the optical energy of a laser beam and turn on a digital circuit capable of communicating data. We have shrunken the size of the chip by eliminating all the analog circuits conventionally used in other methods of energy harvesting. Advisors/Committee Members: Babakhani, Aydin (advisor), Aazhang, Behnaam (committee member), Kono, Junichiro (committee member).

Subjects/Keywords: Energy harvesting; photodiode

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APA (6^th Edition):

Kazem Pour, M. (2017). Micrometer Scale Sensors Using Optical Energy Harvesting. (Masters Thesis). Rice University. Retrieved from http://hdl.handle.net/1911/105540

Chicago Manual of Style (16^th Edition):

Kazem Pour, Mohammad. “Micrometer Scale Sensors Using Optical Energy Harvesting.” 2017. Masters Thesis, Rice University. Accessed March 05, 2021. http://hdl.handle.net/1911/105540.

MLA Handbook (7^th Edition):

Kazem Pour, Mohammad. “Micrometer Scale Sensors Using Optical Energy Harvesting.” 2017. Web. 05 Mar 2021.

Vancouver:

Kazem Pour M. Micrometer Scale Sensors Using Optical Energy Harvesting. [Internet] [Masters thesis]. Rice University; 2017. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1911/105540.

Council of Science Editors:

Kazem Pour M. Micrometer Scale Sensors Using Optical Energy Harvesting. [Masters Thesis]. Rice University; 2017. Available from: http://hdl.handle.net/1911/105540

University of Texas – Austin

7. -6310-5323. Rainwater harvesting : the impact of residential-scale treatment and physicochemical conditions in the cistern on microbiological water quality.

Degree: PhD, Civil Engineering, 2017, University of Texas – Austin

URL: http://dx.doi.org/10.26153/tsw/2630

► Rainwater harvesting (RWH) at an individual residence is an alternative method of water supply for potable and non-potable uses. However, raw harvested rainwater and household-treated… (more)

▼ Rainwater harvesting (RWH) at an individual residence is an alternative method of water supply for potable and non-potable uses. However, raw harvested rainwater and household-treated rainwater frequently contain a substantial number of unidentified microorganisms, some of which might be human pathogens. The objectives of this study were to understand the microbiological quality of harvested rainwater at residential RWH systems and to understand temporal changes in the rainwater cistern microbiome. To achieve these objectives, physicochemical/microbiological water quality parameters and the harvested rainwater microbiome were analyzed at the cistern and finished cold-water taps of residential RWH systems over the period of one year. Additionally, the impact of physicochemical conditions in the cistern on microbiological water quality was studied in bench-scale cisterns over a 28-day period. In the residential RWH systems, potential human pathogens (Mycobacterium avium, Mycobacterium intracellulare, Aspergillus flavus, Aspergillus fumigatus, and Aspergillus niger) were found frequently in cisterns and in treated rainwater delivered at the tap; Legionella pneumophila was not detected as frequently, but it persisted in a system after its first detection. The dissolved organic carbon (DOC) concentration was positively rank-correlated with heterotrophic plate counts (HPC) and L. pneumophila in non-chlorinated cisterns. The harvested rainwater microbiome was diverse and distinct between RWH sites. The diversity of the rainwater microbiome was correlated with HPC and DOC concentrations. The non-chlorinated cisterns had very stable microbiomes over the period of a year, suggesting that fresh rainfall does not change the cistern microbiome substantially. Filtration/ultraviolet-treatment changed the composition of the harvested rainwater microbiome, but DNA from two genera that contain potential human pathogens (Mycobacterium and Legionella) still were found in most samples. The bench-scale cistern experiments showed that the cistern microbiome proceeded towards its pre-disturbance state after an influx of fresh roof-harvested rainwater. The L. pneumophila concentration decreased over time in all the cisterns, even though HPC in the cisterns were stable over 28 days. Chlorination effectively inactivated L. pneumophila in the cistern but only temporarily impacted HPC and the relative abundance of operational taxonomic units in the Firmicutes (e.g., Clostridium spp.). Advisors/Committee Members: Kirisits, Mary Jo (advisor), Kinney, Kerry A. (committee member), Lye, Dennis J. (committee member), Liljestrand, Howard M. (committee member), Appling, Dean R. (committee member).

Subjects/Keywords: Rainwater harvesting; Microbiome

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APA (6^th Edition):

-6310-5323. (2017). Rainwater harvesting : the impact of residential-scale treatment and physicochemical conditions in the cistern on microbiological water quality. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://dx.doi.org/10.26153/tsw/2630

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

-6310-5323. “Rainwater harvesting : the impact of residential-scale treatment and physicochemical conditions in the cistern on microbiological water quality.” 2017. Doctoral Dissertation, University of Texas – Austin. Accessed March 05, 2021. http://dx.doi.org/10.26153/tsw/2630.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

-6310-5323. “Rainwater harvesting : the impact of residential-scale treatment and physicochemical conditions in the cistern on microbiological water quality.” 2017. Web. 05 Mar 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

-6310-5323. Rainwater harvesting : the impact of residential-scale treatment and physicochemical conditions in the cistern on microbiological water quality. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2017. [cited 2021 Mar 05]. Available from: http://dx.doi.org/10.26153/tsw/2630.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

-6310-5323. Rainwater harvesting : the impact of residential-scale treatment and physicochemical conditions in the cistern on microbiological water quality. [Doctoral Dissertation]. University of Texas – Austin; 2017. Available from: http://dx.doi.org/10.26153/tsw/2630

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Rutgers University

8. Jasim, Abbas Fadhil, 1980-. Piezoelectric energy harvesting from roadway.

Degree: PhD, Civil and Environmental Engineering, 2018, Rutgers University

URL: https://rucore.libraries.rutgers.edu/rutgers-lib/57620/

► Energy harvesting technologies have attracted much attention as an alternative power source of roadway accessories in different scales. Piezoelectric materials, which have been widely used… (more)

▼ Energy harvesting technologies have attracted much attention as an alternative power source of roadway accessories in different scales. Piezoelectric materials, which have been widely used in sensor technologies due to their cost-effectiveness, are capable of producing electrical energy from mechanical energy. Therefore, piezoelectric transducers can be designed to harvest the wasted mechanical energy generated under wheel loading that can be stored in an electronic capacitor or integrated with sensors for in-situ road condition monitoring. This dissertation aims to develop a novel design of a piezoelectric transducer with optimized geometry for energy harvesting under vehicular loading in the roadway. The novel Bridge transducer with layered poling is designed to increase the piezoelectric coefficient and the relative dielectric permittivity, which produces much higher energy than traditional transducers. Finite element analysis (FEA) was conducted to predict the generated energy output and the resulted mechanical stress in the lead zirconate titanate (PZT) transducer. The results of the optimization analysis indicate that the optimized geometry parameters can generate the maximum energy output within the stress failure criteria. Later, an energy harvester module that contains multiple stacked transducers, 64 novel transducers, was fabricated and tested under single pulse and cyclic loading events. The main objectives of this part were to evaluate the energy output and fatigue behavior of the piezoelectric energy harvester using laboratory testing and numerical simulation. The analysis results showed that two different material failure models need to be considered in relation to mechanical failure of the Bridge transducer, namely tensile and shear failure. This emphasizes that the optimum design of energy module should consider the balance of energy output and fatigue life that are affected by the fabrication of a single Bridge transducer and the packaging design of the energy module. To take into account the nature of the energy harvester-pavement interaction and to achieve better computation efficiency, the effect of this interaction on pavement responses was studied using a decoupled approach. First, a 3D pavement model was built, and then the pavement responses under the tire contact stresses were calculated. The effects of energy harvester-pavement interaction at different locations, horizontally and vertically, were also analyzed. The results show that the maximum power output of the energy harvester module is around 122mW at a vehicle speed of 65mph and 3 inches embedded depth. Furthermore, embedding the energy harvesting module below 3 inches from the pavement surface is the best location to maximize both power output and service life. Finally, to reveal the potentials of some important technologies for harvesting energy from a pavement network, a case study is discussed, which uses the New Jersey roadway network as the example for analysis. The potential of electrical energy generation for… Advisors/Committee Members: Jasim, Abbas Fadhil, 1980- (author), WANG, HAO (chair), School of Graduate Studies.

Subjects/Keywords: Piezoelectricity; Energy harvesting

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APA (6^th Edition):

Jasim, Abbas Fadhil, 1. (2018). Piezoelectric energy harvesting from roadway. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/57620/

Chicago Manual of Style (16^th Edition):

Jasim, Abbas Fadhil, 1980-. “Piezoelectric energy harvesting from roadway.” 2018. Doctoral Dissertation, Rutgers University. Accessed March 05, 2021. https://rucore.libraries.rutgers.edu/rutgers-lib/57620/.

MLA Handbook (7^th Edition):

Jasim, Abbas Fadhil, 1980-. “Piezoelectric energy harvesting from roadway.” 2018. Web. 05 Mar 2021.

Vancouver:

Jasim, Abbas Fadhil 1. Piezoelectric energy harvesting from roadway. [Internet] [Doctoral dissertation]. Rutgers University; 2018. [cited 2021 Mar 05]. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/57620/.

Council of Science Editors:

Jasim, Abbas Fadhil 1. Piezoelectric energy harvesting from roadway. [Doctoral Dissertation]. Rutgers University; 2018. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/57620/

Stellenbosch University

9. Rabie, John Frederick. Analysis of a mechanised cut-to-lenth harvesting operation through use of discrete-event simulation.

Degree: MScFor, Forest and Wood Science, 2015, Stellenbosch University

URL: http://hdl.handle.net/10019.1/96609

► ENGLISH ABSTRACT: Abstract Mechanised timber harvesting operations are rapidly increasing in South Africa, particularly in Eucalyptus pulpwood production. There are however still considerable inefficiencies in… (more)

▼ ENGLISH ABSTRACT: Abstract Mechanised timber harvesting operations are rapidly increasing in South Africa, particularly in Eucalyptus pulpwood production. There are however still considerable inefficiencies in implementation and evidence of unnecessary operational variability in current mechanised systems. A typical South African cut-to-length operation for harvesting Eucalyptus pulp logs utilising two excavator-based harvesters and one purpose-built forwarder was studied. The ability of performing discrete-event simulation using R was tested. One of the harvesters and the forwarder were simulated individually and alternative work methods were modelled and compared against the original work method. The changes in productivity based on productive machine hours and cost were recorded. The input data was negatively affected by the large variation in stand and individual tree characteristics. This led to a decrease in model validity. Machine simulation models where however able to capture trends found by other authors. The current method of felling a combination of the four and five tree wide swaths yielded the highest productivity of 11.43 m3 hr -1. Tree size had a notable effect on both the harvester and forwarder productivity. Increasing the tree size from 0.14 m3 to 0.20 m3 and 0.3 m3 led to productivity increases of 5.26 m3 hr -1 and 13.14 m3 hr -1, respectively. When comparing the original mean stack sizes of 2.5 m3, stacks with a mean volume of 5.4 m3 yielded an increase in productivity of 5.91 m3 hr -1. Fitting a larger grapple (1 m2 vs. original 0.8 m2 opening) to the forwarder showed increased productivities across all stack sizes. Forwarder productivity decreased by up to 17.8% with an increase in extraction distance. The largest decrease in forwarder productivity was noted when increasing the on-road travel (both loaded and unloaded) distance from 0 m to 100 m (single road scenario); decreasing by 6.1% when using the standard grapple and 7.6% when using the larger grapple. When using both roads the largest productivity decreases were found when increasing the on-road extraction distance from 0 m to 200 m; decreasing by 15.3% when using the standard grapple and 17.8% when using the larger grapple. Costing of each individual machine was carried out per alternative scenario. Decreases in harvester cost were noted between increasing tree sizes, and forwarder cost increased with extraction distance. Harvester cost decreased by as much as R35.24 m-3 when increasing mean tree volume from 0.14 m3 to 0.3 m3, whereas forwarding cost decreased by a maximum of R1.13 m-3 when extracting larger stacks (5.4 m3), when compared to the observed system (2.5 m3 stacks). Removal of all road travel elements and piling directly at roadside, showed savings of up to R10.21 m-3 when compared to the observed system. R proved to be useful for carrying out discrete-event simulations, however, dedicated simulation probability distributions need to be developed before it can be said that R is highly suitable for discrete-event… Advisors/Committee Members: Ackerman, Pierre Alexander, Pulkki, Reino Evert, Laengin, Dirk Werner, Stellenbosch University. Faculty of AgriSciences. Dept. of Forest and Wood Science..

Subjects/Keywords: Eucalyptus – Harvesting; Timber – Harvesting; Eucalyptus – Productivity; UCTD; Forest harvesting

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APA (6^th Edition):

Rabie, J. F. (2015). Analysis of a mechanised cut-to-lenth harvesting operation through use of discrete-event simulation. (Masters Thesis). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/96609

Chicago Manual of Style (16^th Edition):

Rabie, John Frederick. “Analysis of a mechanised cut-to-lenth harvesting operation through use of discrete-event simulation.” 2015. Masters Thesis, Stellenbosch University. Accessed March 05, 2021. http://hdl.handle.net/10019.1/96609.

MLA Handbook (7^th Edition):

Rabie, John Frederick. “Analysis of a mechanised cut-to-lenth harvesting operation through use of discrete-event simulation.” 2015. Web. 05 Mar 2021.

Vancouver:

Rabie JF. Analysis of a mechanised cut-to-lenth harvesting operation through use of discrete-event simulation. [Internet] [Masters thesis]. Stellenbosch University; 2015. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/10019.1/96609.

Council of Science Editors:

Rabie JF. Analysis of a mechanised cut-to-lenth harvesting operation through use of discrete-event simulation. [Masters Thesis]. Stellenbosch University; 2015. Available from: http://hdl.handle.net/10019.1/96609

North Carolina State University

10. Hannum, Lindsay Cloud. Developing Machinery to Harvest Small Diameter Woody Biomass Transforming a Fire Hazard into an Energy Crisis Solution.

Degree: MS, Forestry, 2009, North Carolina State University

URL: http://www.lib.ncsu.edu/resolver/1840.16/930

► Energy demands continue to increase despite depleting fossil fuels and growing awareness of global climate changes. Biomass energy will play a vital role as the… (more)

Subjects/Keywords: biomass harvesting; small diameter wood biomass; biomass machinery; harvesting equipment; forestry harvesting systems

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APA (6^th Edition):

Hannum, L. C. (2009). Developing Machinery to Harvest Small Diameter Woody Biomass Transforming a Fire Hazard into an Energy Crisis Solution. (Thesis). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/930

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hannum, Lindsay Cloud. “Developing Machinery to Harvest Small Diameter Woody Biomass Transforming a Fire Hazard into an Energy Crisis Solution.” 2009. Thesis, North Carolina State University. Accessed March 05, 2021. http://www.lib.ncsu.edu/resolver/1840.16/930.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hannum, Lindsay Cloud. “Developing Machinery to Harvest Small Diameter Woody Biomass Transforming a Fire Hazard into an Energy Crisis Solution.” 2009. Web. 05 Mar 2021.

Vancouver:

Hannum LC. Developing Machinery to Harvest Small Diameter Woody Biomass Transforming a Fire Hazard into an Energy Crisis Solution. [Internet] [Thesis]. North Carolina State University; 2009. [cited 2021 Mar 05]. Available from: http://www.lib.ncsu.edu/resolver/1840.16/930.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hannum LC. Developing Machinery to Harvest Small Diameter Woody Biomass Transforming a Fire Hazard into an Energy Crisis Solution. [Thesis]. North Carolina State University; 2009. Available from: http://www.lib.ncsu.edu/resolver/1840.16/930

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan State University

11. Hanson, Carl John. A comparison of procedures used in harvesting alfalfa and alsike clover seed.

Degree: MS, 1949, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:7779

Subjects/Keywords: Alfalfa – Harvesting; Clover – Harvesting; Harvesting – Research

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APA (6^th Edition):

Hanson, C. J. (1949). A comparison of procedures used in harvesting alfalfa and alsike clover seed. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:7779

Chicago Manual of Style (16^th Edition):

Hanson, Carl John. “A comparison of procedures used in harvesting alfalfa and alsike clover seed.” 1949. Masters Thesis, Michigan State University. Accessed March 05, 2021. http://etd.lib.msu.edu/islandora/object/etd:7779.

MLA Handbook (7^th Edition):

Hanson, Carl John. “A comparison of procedures used in harvesting alfalfa and alsike clover seed.” 1949. Web. 05 Mar 2021.

Vancouver:

Hanson CJ. A comparison of procedures used in harvesting alfalfa and alsike clover seed. [Internet] [Masters thesis]. Michigan State University; 1949. [cited 2021 Mar 05]. Available from: http://etd.lib.msu.edu/islandora/object/etd:7779.

Council of Science Editors:

Hanson CJ. A comparison of procedures used in harvesting alfalfa and alsike clover seed. [Masters Thesis]. Michigan State University; 1949. Available from: http://etd.lib.msu.edu/islandora/object/etd:7779

Oregon State University

12. Clark, Sally Lynn. Effects of winter grazing by geese on rye grass seed yield.

Degree: MS, Fisheries and Wildlife, 1976, Oregon State University

URL: http://hdl.handle.net/1957/21918

Subjects/Keywords: Seeds – Harvesting

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APA (6^th Edition):

Clark, S. L. (1976). Effects of winter grazing by geese on rye grass seed yield. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/21918

Chicago Manual of Style (16^th Edition):

Clark, Sally Lynn. “Effects of winter grazing by geese on rye grass seed yield.” 1976. Masters Thesis, Oregon State University. Accessed March 05, 2021. http://hdl.handle.net/1957/21918.

MLA Handbook (7^th Edition):

Clark, Sally Lynn. “Effects of winter grazing by geese on rye grass seed yield.” 1976. Web. 05 Mar 2021.

Vancouver:

Clark SL. Effects of winter grazing by geese on rye grass seed yield. [Internet] [Masters thesis]. Oregon State University; 1976. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1957/21918.

Council of Science Editors:

Clark SL. Effects of winter grazing by geese on rye grass seed yield. [Masters Thesis]. Oregon State University; 1976. Available from: http://hdl.handle.net/1957/21918

Oregon State University

13. Duarte, Arthur Culver. The economics of mechanical harvesting of tomatoes in the Salinas Valley, California.

Degree: MS, Agricultural Economics, 1965, Oregon State University

URL: http://hdl.handle.net/1957/18530

► A study was made to determine and examine the economics of the mechanical harvest of tomatoes in the Salinas Valley of California. To achieve this… (more)

▼ A study was made to determine and examine the economics of the mechanical harvest of tomatoes in the Salinas Valley of California. To achieve this objective, it was necessary to detail the related cultural requirements of the machine harvested crop to the extent they budget technique, two economic models; one for hand picking and one for machine harvest and making the necessary comparisons. The results found could not be compared with findings of other researchers since only fragmentary economic data pertaining to the complete cost structure of a mechanical tomato harvesting operation are available. The special cultural requirements of the tomato crop to permit mechanical harvest were discussed as well as the harvest procedures and practices. The two economic models were structured on the basis of standard cultural practices for hand harvesting and the practices projected and discussed for machine harvesting. Each model was developed for 75 acres of tomatoes as part of a 500 acre diversified farm. Growing conditions were assumed to be normal for both harvesting methods as were yields at 25 tons per acre. Costs in the models were structured on the basis of actual or projected inputs, rates, and prices. Based on conditions, rates, and charges used in the economic models, it was found that the total of all costs for the hand harvest crop were 684 per acre compared to 615 per acre for the machine harvest crop. The harvest costs were found to be 326 per acre for hand harvesting and 246 per acre for machine harvesting. Costs other than harvest were not greatly different. In order to determine the feasibility of a new method of harvest, the effect on revenue must be considered as well as the impact on costs. Gross revenue from the machine harvest operation was 713 per acre, which was eight dollars less per acre than for hand harvesting. However, because of the much lower costs of machine harvesting, the net revenue was 98 per acre for the machine harvest model compared to 38 per acre for the hand harvest model. The net advantage in favor of the machine harvest method amounts to 60 per acre. From the information analysed, it was concluded that the capital required for mechanical harvesting equipment would be a limiting factor in many situations. Although acreage could be limiting in some cases, only about 38 acres of tomatoes would be required for justification of mechanical harvesting equipment. It was concluded that the mechanical harvest of tomatoes in the Salinas Valley is currently economically feasible and its advantage over hand picking probably will increase with the passing of time. Advisors/Committee Members: Blanch, Grant E (advisor).

Subjects/Keywords: Tomatoes – Harvesting

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APA (6^th Edition):

Duarte, A. C. (1965). The economics of mechanical harvesting of tomatoes in the Salinas Valley, California. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/18530

Chicago Manual of Style (16^th Edition):

Duarte, Arthur Culver. “The economics of mechanical harvesting of tomatoes in the Salinas Valley, California.” 1965. Masters Thesis, Oregon State University. Accessed March 05, 2021. http://hdl.handle.net/1957/18530.

MLA Handbook (7^th Edition):

Duarte, Arthur Culver. “The economics of mechanical harvesting of tomatoes in the Salinas Valley, California.” 1965. Web. 05 Mar 2021.

Vancouver:

Duarte AC. The economics of mechanical harvesting of tomatoes in the Salinas Valley, California. [Internet] [Masters thesis]. Oregon State University; 1965. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1957/18530.

Council of Science Editors:

Duarte AC. The economics of mechanical harvesting of tomatoes in the Salinas Valley, California. [Masters Thesis]. Oregon State University; 1965. Available from: http://hdl.handle.net/1957/18530

14. Abu-Saliek, Fatin Hajjaj. Pentagonal and hexagonal macrorings of porphyrin dimers exhibiting light-harvesting antenna function : 光捕集アンテナ機能を示すポルフィリンダイマーの5および6量体マクロリング.

Degree: Nara Institute of Science and Technology / 奈良先端科学技術大学院大学

URL: http://hdl.handle.net/10061/4036

Subjects/Keywords: light-harvesting

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APA (6^th Edition):

Abu-Saliek, F. H. (n.d.). Pentagonal and hexagonal macrorings of porphyrin dimers exhibiting light-harvesting antenna function : 光捕集アンテナ機能を示すポルフィリンダイマーの5および6量体マクロリング. (Thesis). Nara Institute of Science and Technology / 奈良先端科学技術大学院大学. Retrieved from http://hdl.handle.net/10061/4036

Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Abu-Saliek, Fatin Hajjaj. “Pentagonal and hexagonal macrorings of porphyrin dimers exhibiting light-harvesting antenna function : 光捕集アンテナ機能を示すポルフィリンダイマーの5および6量体マクロリング.” Thesis, Nara Institute of Science and Technology / 奈良先端科学技術大学院大学. Accessed March 05, 2021. http://hdl.handle.net/10061/4036.

Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Abu-Saliek, Fatin Hajjaj. “Pentagonal and hexagonal macrorings of porphyrin dimers exhibiting light-harvesting antenna function : 光捕集アンテナ機能を示すポルフィリンダイマーの5および6量体マクロリング.” Web. 05 Mar 2021.

Note: this citation may be lacking information needed for this citation format:
No year of publication.

Vancouver:

Abu-Saliek FH. Pentagonal and hexagonal macrorings of porphyrin dimers exhibiting light-harvesting antenna function : 光捕集アンテナ機能を示すポルフィリンダイマーの5および6量体マクロリング. [Internet] [Thesis]. Nara Institute of Science and Technology / 奈良先端科学技術大学院大学; [cited 2021 Mar 05]. Available from: http://hdl.handle.net/10061/4036.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

Council of Science Editors:

Abu-Saliek FH. Pentagonal and hexagonal macrorings of porphyrin dimers exhibiting light-harvesting antenna function : 光捕集アンテナ機能を示すポルフィリンダイマーの5および6量体マクロリング. [Thesis]. Nara Institute of Science and Technology / 奈良先端科学技術大学院大学; Available from: http://hdl.handle.net/10061/4036

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

University of Utah

15. Heit, John Dale. A framework to estimate power output as a function of input vibration parameters for vibration energy harvesting.

Degree: MS, Metallurgical Engineering, 2014, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3143/rec/42

► A standard lumped parameter model for an inertial vibration energy harvester consists of a proof mass, spring, and damper(s). This model can also be described… (more)

▼ A standard lumped parameter model for an inertial vibration energy harvester consists of a proof mass, spring, and damper(s). This model can also be described with a proof mass, viscous damping element for parasitic mechanical losses, and a generalized transducer that applies some force to the mass damper system. The transducer may contain restorative spring elements and energy extraction elements to harvest power. Currently the framework to relate vibration input to an optimal transducer architecture does not exist. Previous work has shown that for some inputs nonlinear transducer architectures can result in an increased power output.This paper outlines a mathematical framework needed in order to find the optimal transducer architecture for a given vibration input. This framework defines the theoretical upper limit that any inertial transducer can harvest from a given vibration input in the presence of viscous mechanical damping. This framework is then applied to three cases of standard input types. The first application is a single sinusoid input. The transducer architecture found is the expected result, a linear spring with matched resonance to the input, and an energy extraction element, that behaves as a linear viscous damper, with matched impedance to the mechanical damping. The second application of this framework is an input of two sinusoids both having equal magnitude but different frequencies. The resulting optimal transducer is dependent on the difference in the frequencies of the two signals. This optimal transducer is often not realizable with a passive system, as it is inherently time dependent. For all cases of frequency separation between the two sinusoidal inputs, the upper limit for the energy generated is found to be twice that of a linear harvester tuned to the lower of the two frequencies.The third application is for an input whose frequency changes linearly in time (i.e. a swept sinusoid). The optimal transducer architecture for this input is found to be completely time dependent. However for the case when the change in the input frequency is much slower than the period of the system, the transducer can be approximated by a linear spring whose stiffness changes in time.

Subjects/Keywords: Energy harvesting; Optimal; Vibration

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APA (6^th Edition):

Heit, J. D. (2014). A framework to estimate power output as a function of input vibration parameters for vibration energy harvesting. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3143/rec/42

Chicago Manual of Style (16^th Edition):

Heit, John Dale. “A framework to estimate power output as a function of input vibration parameters for vibration energy harvesting.” 2014. Masters Thesis, University of Utah. Accessed March 05, 2021. http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3143/rec/42.

MLA Handbook (7^th Edition):

Heit, John Dale. “A framework to estimate power output as a function of input vibration parameters for vibration energy harvesting.” 2014. Web. 05 Mar 2021.

Vancouver:

Heit JD. A framework to estimate power output as a function of input vibration parameters for vibration energy harvesting. [Internet] [Masters thesis]. University of Utah; 2014. [cited 2021 Mar 05]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3143/rec/42.

Council of Science Editors:

Heit JD. A framework to estimate power output as a function of input vibration parameters for vibration energy harvesting. [Masters Thesis]. University of Utah; 2014. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3143/rec/42

University of Utah

16. Jensen, Mark A. Feasibility of rainwater harvesting for urban water management in Salt Lake City.

Degree: MS;, Civil & Environmental Engineering;, 2008, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1406/rec/491

► Water managers in the western United States are being challenged by rapid urban growth and limited water availability. The development of new water resources is… (more)

Subjects/Keywords: Water harvesting; Water supply

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APA (6^th Edition):

Jensen, M. A. (2008). Feasibility of rainwater harvesting for urban water management in Salt Lake City. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1406/rec/491

Chicago Manual of Style (16^th Edition):

Jensen, Mark A. “Feasibility of rainwater harvesting for urban water management in Salt Lake City.” 2008. Masters Thesis, University of Utah. Accessed March 05, 2021. http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1406/rec/491.

MLA Handbook (7^th Edition):

Jensen, Mark A. “Feasibility of rainwater harvesting for urban water management in Salt Lake City.” 2008. Web. 05 Mar 2021.

Vancouver:

Jensen MA. Feasibility of rainwater harvesting for urban water management in Salt Lake City. [Internet] [Masters thesis]. University of Utah; 2008. [cited 2021 Mar 05]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1406/rec/491.

Council of Science Editors:

Jensen MA. Feasibility of rainwater harvesting for urban water management in Salt Lake City. [Masters Thesis]. University of Utah; 2008. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1406/rec/491

University of Utah

17. York, Christopher. Impacts of large-scale green infrastructure implementation and climate change on receiving water response in the salt lake city area.

Degree: MS, Civil & Environmental Engineering, 2015, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3760/rec/1303

► Farmington Bay is an important natural resource for the state of Utah, providing wetland habitats including freshwater and salt water, marshes, mud flats, and upland… (more)

▼ Farmington Bay is an important natural resource for the state of Utah, providing wetland habitats including freshwater and salt water, marshes, mud flats, and upland areas. The primary water source for Farmington Bay is the Jordan River, which receives water from natural and urban runoff in the Salt Lake Valley. This thesis work is guided by broad interest in evaluating implications of green infrastructure as a stormwater management practice on return flows under current and potential future climate change scenarios. The ultimate goal was to create a model to explore the impacts that bioretention, rainwater harvesting, and climate change may have, individually and combined, on the downstream stakeholders and receiving water systems in the Salt Lake Valley. This was performed using integrated modeling techniques through use of GoldSim software. Overall, the model demonstrated that bioretention and rainwater harvesting individually and combined showed minimal to no impacts to downstream water users, Jordan River flows, and ultimately Farmington Bay water levels. Bioretention reduced the flow in the Jordan River by less than 1%, primarily during peak flow. Rainwater harvesting actually kept more water in the natural system on average because less water was needed from the water treatment facilities when outdoor irrigation was supplemented with rainwater. This means more water stayed in the upstream reservoir or bypassed to the Jordan River. The user reliability did not differ for any of the bioretention and rainwater harvesting scenarios. Climate change had the greatest impact to Jordan River flows, Farmington Bay water levels, and user reliability. The selected 20% reduction in tributary flows and precipitation led to an average decrease of 11% in the Jordan River streamflow when compared to average baseline scenario over a 25-year simulation. The user reliability decreased by 5% and most importantly, there was found to be an average of 36% decrease in the water levels in Farmington Bay, with a critical level of 41,000 acre-feet reached. The resultant of this is a loss of up to 15,000 acres of open bay that would impact bird habitat, brine shrimp grounds, recreationalists, bird watchers, hunters, and more.

Subjects/Keywords: Bioretention; Green infrastructure; Rainwater harvesting

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APA (6^th Edition):

York, C. (2015). Impacts of large-scale green infrastructure implementation and climate change on receiving water response in the salt lake city area. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3760/rec/1303

Chicago Manual of Style (16^th Edition):

York, Christopher. “Impacts of large-scale green infrastructure implementation and climate change on receiving water response in the salt lake city area.” 2015. Masters Thesis, University of Utah. Accessed March 05, 2021. http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3760/rec/1303.

MLA Handbook (7^th Edition):

York, Christopher. “Impacts of large-scale green infrastructure implementation and climate change on receiving water response in the salt lake city area.” 2015. Web. 05 Mar 2021.

Vancouver:

York C. Impacts of large-scale green infrastructure implementation and climate change on receiving water response in the salt lake city area. [Internet] [Masters thesis]. University of Utah; 2015. [cited 2021 Mar 05]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3760/rec/1303.

Council of Science Editors:

York C. Impacts of large-scale green infrastructure implementation and climate change on receiving water response in the salt lake city area. [Masters Thesis]. University of Utah; 2015. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3760/rec/1303

University of Alberta

18. Abele, Suzanne E. Gastropod diversity in the boreal mixedwood forest of northern Alberta - variation among forest types and response to partial harvesting.

Degree: MS, Department of Renewable Resources, 2010, University of Alberta

URL: https://era.library.ualberta.ca/files/mp48sd794

► Terrestrial gastropods are important decomposers, herbivores, and prey items in forest systems and constitute a poorly understood element of forest biodiversity in Canada. I studied… (more)

Subjects/Keywords: boreal; mixedwood; gastropod; harvesting

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APA (6^th Edition):

Abele, S. E. (2010). Gastropod diversity in the boreal mixedwood forest of northern Alberta - variation among forest types and response to partial harvesting. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/mp48sd794

Chicago Manual of Style (16^th Edition):

Abele, Suzanne E. “Gastropod diversity in the boreal mixedwood forest of northern Alberta - variation among forest types and response to partial harvesting.” 2010. Masters Thesis, University of Alberta. Accessed March 05, 2021. https://era.library.ualberta.ca/files/mp48sd794.

MLA Handbook (7^th Edition):

Abele, Suzanne E. “Gastropod diversity in the boreal mixedwood forest of northern Alberta - variation among forest types and response to partial harvesting.” 2010. Web. 05 Mar 2021.

Vancouver:

Abele SE. Gastropod diversity in the boreal mixedwood forest of northern Alberta - variation among forest types and response to partial harvesting. [Internet] [Masters thesis]. University of Alberta; 2010. [cited 2021 Mar 05]. Available from: https://era.library.ualberta.ca/files/mp48sd794.

Council of Science Editors:

Abele SE. Gastropod diversity in the boreal mixedwood forest of northern Alberta - variation among forest types and response to partial harvesting. [Masters Thesis]. University of Alberta; 2010. Available from: https://era.library.ualberta.ca/files/mp48sd794

University of Alberta

19. Kollias, Aristotelis. Thermoelectric Harvesting and Seasonal Routing in Wireless Sensor Networks.

Degree: MS, Department of Computing Science, 2016, University of Alberta

URL: https://era.library.ualberta.ca/files/c2v23vt42k

► We propose the use of embedded in-wall thermoelectric harvester to power the nodes of a wireless sensor network. We exploit significant temperature differences of indoor… (more)

Subjects/Keywords: Seasonal Routing; Thermoelectric Harvesting

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APA (6^th Edition):

Kollias, A. (2016). Thermoelectric Harvesting and Seasonal Routing in Wireless Sensor Networks. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/c2v23vt42k

Chicago Manual of Style (16^th Edition):

Kollias, Aristotelis. “Thermoelectric Harvesting and Seasonal Routing in Wireless Sensor Networks.” 2016. Masters Thesis, University of Alberta. Accessed March 05, 2021. https://era.library.ualberta.ca/files/c2v23vt42k.

MLA Handbook (7^th Edition):

Kollias, Aristotelis. “Thermoelectric Harvesting and Seasonal Routing in Wireless Sensor Networks.” 2016. Web. 05 Mar 2021.

Vancouver:

Kollias A. Thermoelectric Harvesting and Seasonal Routing in Wireless Sensor Networks. [Internet] [Masters thesis]. University of Alberta; 2016. [cited 2021 Mar 05]. Available from: https://era.library.ualberta.ca/files/c2v23vt42k.

Council of Science Editors:

Kollias A. Thermoelectric Harvesting and Seasonal Routing in Wireless Sensor Networks. [Masters Thesis]. University of Alberta; 2016. Available from: https://era.library.ualberta.ca/files/c2v23vt42k

Oregon State University

20. Tongumpai, Peeradet. Strategies for machine harvesting of mature coffee (Coffea arabica L.) fruits.

Degree: PhD, Horticulture, 1993, Oregon State University

URL: http://hdl.handle.net/1957/25799

► Greenhouse and field grown coffee plants were used to study the synchronization of flowering and fruiting. The purpose of these studies was to develop methods… (more)

▼ Greenhouse and field grown coffee plants were used to study the synchronization of flowering and fruiting. The purpose of these studies was to develop methods of improving the selective harvesting of mature coffee fruits by machine. The studies were divided into 4 parts: 1) Synchronization of flowering, 2) Synchronization of fruiting, 3) Determination of fruit detachment and fruit removal force (FRF), and 4) Alteration of the FRF of ripe fruits. Either mist irrigation or water deficit stress followed by sufficient watering were effective in inducing flowering. Gibberellic acid treatment was less effective. Gibberellic acid applied to field grown coffee plants with fruit at different ages up to 40 days after anthesis advanced fruit maturity but did not synchronize fruit maturation. Ethephon sprayed on fruits at 230 days after anthesis resulted in uniform ripening of fruit on greenhouse grown coffee plants. The mechanism of abscission of green and ripe fruits was studied. No abscission layer was found at the sites of detachment in either green or ripe fruits. The detachment of ripe fruits occurred at random, by the breaking of parenchymatous pericarp tissue immediately above the pedicel. In contrast, the detachment of green fruits occurred at random along the pedicel. The FRF of green fruits was greater than the FRF of ripe fruits. The FRF decreased as fruits matured in both the ethephon and control treatments. Indices of fruit maturation were correlated with FRF. Exocarp color change, expressed quantitatively as the degree of lightness (L) and hue angle (θ), was correlated with the FRF. The soluble solids content of the pericarp tissue decreased as fruit matured. There was a strong inverse correlation between FRF and soluble solids content of the pericarp. Further reduction in the FRF of ripe fruits was achieved by mist irrigation. The FRF of green fruits was not affected by the mist irrigation treatment. These studies provide strong evidence for the selective harvesting of mature coffee fruits by machine by integration of synchronized flowering and fruiting, and the reduction in FRF of ripe fruits. Advisors/Committee Members: Fuchigami, Leslie H. (advisor), Doescher, Paul (committee member).

Subjects/Keywords: Coffee – Harvesting

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APA (6^th Edition):

Tongumpai, P. (1993). Strategies for machine harvesting of mature coffee (Coffea arabica L.) fruits. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/25799

Chicago Manual of Style (16^th Edition):

Tongumpai, Peeradet. “Strategies for machine harvesting of mature coffee (Coffea arabica L.) fruits.” 1993. Doctoral Dissertation, Oregon State University. Accessed March 05, 2021. http://hdl.handle.net/1957/25799.

MLA Handbook (7^th Edition):

Tongumpai, Peeradet. “Strategies for machine harvesting of mature coffee (Coffea arabica L.) fruits.” 1993. Web. 05 Mar 2021.

Vancouver:

Tongumpai P. Strategies for machine harvesting of mature coffee (Coffea arabica L.) fruits. [Internet] [Doctoral dissertation]. Oregon State University; 1993. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1957/25799.

Council of Science Editors:

Tongumpai P. Strategies for machine harvesting of mature coffee (Coffea arabica L.) fruits. [Doctoral Dissertation]. Oregon State University; 1993. Available from: http://hdl.handle.net/1957/25799

Cornell University

21. Reissman, Timothy. Mesoscale Transduction Systems And Applications To Energy Harvesting Onboard Flying Insects.

Degree: PhD, Mechanical Engineering, 2013, Cornell University

URL: http://hdl.handle.net/1813/33957

► We begin this dissertation first by defining the mesoscale as the realm of feature sizes that span from the single micron to the centimeter range.… (more)

▼ We begin this dissertation first by defining the mesoscale as the realm of feature sizes that span from the single micron to the centimeter range. The motivation for focusing on the mesoscale is that in terms of today's power applications, such geometric scale is required in order to allow for sufficient energy transduction within the larger devices that they serve. Thus, by further developing the models and fabrication techniques within the mesoscale, this collection of works aims to achieve a direct and immediate impact on advancing the state of the art within these facets of transduction technology. The first chapter of this dissertation describes the derivation and first known experimental validation of a generalized analytical method for predicting the performance of a piezoelectric vibration energy harvesting devices with geometric discontinuities. Here we adapt the transfer matrix method to incorporate the direct piezoelectric effect, thereby predicting the electromechanical response of such devices. The significance of this work is that it a means to progress away from geometry specific solutions to a generalized analytical approach for design. The next chapter describes the results of a fan-folded, i.e. discontinuous geometry, piezoelectric structure attached to a Manduca sexta hawkmoth. Here the design criteria are developed through empirical studies of insect's abilities and by the power requirements of the proposed miniaturized onboard devices. The significance of this work is that it provides the first known successful demonstration of in-situ harnessing of free, flapping flight on an insect capable of powering technology such as radio transmissions. The third chapter details the use of single-level lithography to simplify the microfabrication of stacked inductors used in power converter technology. By using such a technique and increasing the scale to the mesoscale range, the inductance of such devices can be increased to the necessary micro-Henry inductance level. The fourth chapter describes the full conduction, convection, and radiation modeling of the classic thermal micro-actuator. Within this model, we extend beyond the conventional conduction-only approach to yield more accurate models and transfer functions needed for advancing controls applications in microscale technology. Advisors/Committee Members: Garcia, Ephrahim (chair), Erickson, David (committee member), Gilmour Jr., Robert F (committee member).

Subjects/Keywords: mesoscale transduction; energy harvesting; piezoelectric

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APA (6^th Edition):

Reissman, T. (2013). Mesoscale Transduction Systems And Applications To Energy Harvesting Onboard Flying Insects. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/33957

Chicago Manual of Style (16^th Edition):

Reissman, Timothy. “Mesoscale Transduction Systems And Applications To Energy Harvesting Onboard Flying Insects.” 2013. Doctoral Dissertation, Cornell University. Accessed March 05, 2021. http://hdl.handle.net/1813/33957.

MLA Handbook (7^th Edition):

Reissman, Timothy. “Mesoscale Transduction Systems And Applications To Energy Harvesting Onboard Flying Insects.” 2013. Web. 05 Mar 2021.

Vancouver:

Reissman T. Mesoscale Transduction Systems And Applications To Energy Harvesting Onboard Flying Insects. [Internet] [Doctoral dissertation]. Cornell University; 2013. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1813/33957.

Council of Science Editors:

Reissman T. Mesoscale Transduction Systems And Applications To Energy Harvesting Onboard Flying Insects. [Doctoral Dissertation]. Cornell University; 2013. Available from: http://hdl.handle.net/1813/33957

22. Kush, Mona. Spatial perspectives of rainwater harvesting in Central Delhi;.

Degree: Geography, 2002, Chaudhary Charan Singh University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/42040

None newline

Bibliography p. 1-8

Advisors/Committee Members: Singh, Virandra.

Subjects/Keywords: Rainwater harvesting

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APA (6^th Edition):

Kush, M. (2002). Spatial perspectives of rainwater harvesting in Central Delhi;. (Thesis). Chaudhary Charan Singh University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/42040

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kush, Mona. “Spatial perspectives of rainwater harvesting in Central Delhi;.” 2002. Thesis, Chaudhary Charan Singh University. Accessed March 05, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/42040.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kush, Mona. “Spatial perspectives of rainwater harvesting in Central Delhi;.” 2002. Web. 05 Mar 2021.

Vancouver:

Kush M. Spatial perspectives of rainwater harvesting in Central Delhi;. [Internet] [Thesis]. Chaudhary Charan Singh University; 2002. [cited 2021 Mar 05]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/42040.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kush M. Spatial perspectives of rainwater harvesting in Central Delhi;. [Thesis]. Chaudhary Charan Singh University; 2002. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/42040

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

23. Kovalcik, Derek John. Algal Harvesting for Biodiesel Production: Comparing Centrifugation and Electrocoagulation.

Degree: MS, Agricultural Systems Management, 2013, Texas A&M University

URL: http://hdl.handle.net/1969.1/151112

► Electrocoagulation was compared to centrifugation at pilot scale for harvesting Nannochloris oculata and Nannochloropsis salina for biodiesel production. The pilot scale testing is a proof… (more)

▼ Electrocoagulation was compared to centrifugation at pilot scale for harvesting Nannochloris oculata and Nannochloropsis salina for biodiesel production. The pilot scale testing is a proof of concept and no optimization was conducted. Testing used the KASELCO commercial electrocoagulation system. The KASELCO electrocoagulation system successfully coagulated microalgae in laboratory testing. Aluminum and stainless steel electrodes successfully recovered algae in laboratory testing. Electricity consumed was lowest using aluminum electrodes in laboratory testing, but inconsistently coagulated microalgae at the pilot scale. Stainless steel electrodes consistently recovered algae and were selected as the primary electrode to treat microalgae at the pilot scale. Scaling power settings to pilot testing using laboratory data was successful following KASELCO’s proprietary guidelines. The KASELCO electrocoagulation system showed an electrical reduction in pilot scale operational cost for harvesting. Economic analysis using the Algae Income Simulation Model concluded that the KASELCO electrocoagulation system increase net present value of a commercial algae farm by $56,139,609 using a discount factor of 0.04. The KASELCO electrocoagulation system was calculated to use 26 kWh/ton at a commercial algae farm. However, cultivation and extraction processes are energy intensive, resulting in minimal electrical savings for the algae farm. The increase in net present value reduced production costs at the algae farm by 1%. The probability of success for the microalgae farm was zero for all scenarios analyzed. While a reduction in capital and operational costs were observed, several improvements, including harvesting using electrocoagulation, in cultivation, extraction, and conversion are necessary for economic success for biodiesel production using algae farms. Advisors/Committee Members: Lacey, Ronald E. (advisor), Smith, Patricia K. (committee member), Outlaw, Joe L. (committee member).

Subjects/Keywords: Algal harvesting; Electrocoagulation; Biodiesel; Biofuels

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APA (6^th Edition):

Kovalcik, D. J. (2013). Algal Harvesting for Biodiesel Production: Comparing Centrifugation and Electrocoagulation. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/151112

Chicago Manual of Style (16^th Edition):

Kovalcik, Derek John. “Algal Harvesting for Biodiesel Production: Comparing Centrifugation and Electrocoagulation.” 2013. Masters Thesis, Texas A&M University. Accessed March 05, 2021. http://hdl.handle.net/1969.1/151112.

MLA Handbook (7^th Edition):

Kovalcik, Derek John. “Algal Harvesting for Biodiesel Production: Comparing Centrifugation and Electrocoagulation.” 2013. Web. 05 Mar 2021.

Vancouver:

Kovalcik DJ. Algal Harvesting for Biodiesel Production: Comparing Centrifugation and Electrocoagulation. [Internet] [Masters thesis]. Texas A&M University; 2013. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1969.1/151112.

Council of Science Editors:

Kovalcik DJ. Algal Harvesting for Biodiesel Production: Comparing Centrifugation and Electrocoagulation. [Masters Thesis]. Texas A&M University; 2013. Available from: http://hdl.handle.net/1969.1/151112

Texas A&M University

24. Carreon Bautista, Salvador. Power Management Circuits for Energy Harvesting Applications.

Degree: PhD, Electrical Engineering, 2015, Texas A&M University

URL: http://hdl.handle.net/1969.1/161667

► Energy harvesting is the process of converting ambient available energy into usable electrical energy. Multiple types of sources are can be used to harness environmental… (more)

Subjects/Keywords: Energy Harvesting; Integrated Circuits

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APA (6^th Edition):

Carreon Bautista, S. (2015). Power Management Circuits for Energy Harvesting Applications. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/161667

Chicago Manual of Style (16^th Edition):

Carreon Bautista, Salvador. “Power Management Circuits for Energy Harvesting Applications.” 2015. Doctoral Dissertation, Texas A&M University. Accessed March 05, 2021. http://hdl.handle.net/1969.1/161667.

MLA Handbook (7^th Edition):

Carreon Bautista, Salvador. “Power Management Circuits for Energy Harvesting Applications.” 2015. Web. 05 Mar 2021.

Vancouver:

Carreon Bautista S. Power Management Circuits for Energy Harvesting Applications. [Internet] [Doctoral dissertation]. Texas A&M University; 2015. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1969.1/161667.

Council of Science Editors:

Carreon Bautista S. Power Management Circuits for Energy Harvesting Applications. [Doctoral Dissertation]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/161667

Penn State University

25. Mahmood, Raheel Sheikh. Vibration energy harvesting from rotorcraft drive systems using thermoelectric conversion of heat generated by mechanical damping.

Degree: 2014, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/23693

► Energy harvesting from ambient structural vibrations on rotorcraft continues to generate increasing interest due to its potential use in powering wireless sensors for applications such… (more)

▼ Energy harvesting from ambient structural vibrations on rotorcraft continues to generate increasing interest due to its potential use in powering wireless sensors for applications such as structural health monitoring. Vibration energy harvesters developed in the past have used piezoelectric or electromagnetic devices to convert mechanical work into electrical energy for use by accelerometers, strain gauges, or other devices. Vibrations from rotorcraft drive systems typically occur within a frequency range of 500 to 3000~Hz as a result of transmission gear meshing. An alternative method for vibration energy harvesting employs a thermoelectric generator which converts thermal energy dissipated by a damped mechanical oscillator installed on the vibrating structure to electrical energy. Damping of the oscillator is provided by either a viscoelastic spring or by forces due to eddy current induction in a metal plate moving relative to a magnetic field. Two harvester designs implementing oscillators damped by either viscoelastic or electromagnetic forces are described, and one-dimensional analytical models are developed to model heat generation and conduction for each design. Test articles are designed for experimental evaluation of the two heating methods, and the analytical models are used to predict the behavior of the test articles. An analogous thermal circuit model is used to model transient heat flow, and a finite element model is used to model magnetic flux distribution to aid in prediction of temperature response of the test articles. Experimental characterization of a stiff, low damping elastomer indicated decreasing stiffness and loss factor with increasing base acceleration. The average measured stiffness was found to be slightly lower than the expected value based on the material specification, and the average loss factor was also lower than expected but aligned with the expected value at low acceleration levels. An increase in the temperature of the viscoelastic test article driven at resonance was recorded at a slightly lower rate than predicted. Induction heating measurements of aluminum plates of varying thicknesses showed an increase in surface heating with plate thickness. The measured temperature over the test period increased quadratically with relative velocity, as predicted by the analytical model. Measurement of the power output of two thermoelectric generators with changing surface temperature revealed differences in the response for upward and downward temperature change, indicating nonlinearities in the behavior of these units. Results of the study showed limited applicability of the considered approaches for high frequency vibration energy harvesting applications due to the long time required for heating of the elastomer, or the high velocities required for magnetic induction heating. Suggestions for improving the performance and efficiency of the proposed harvesters are provided along with recommendations for future work. Advisors/Committee Members: George A Lesieutre, Thesis Advisor/Co-Advisor, Edward A Smith, Thesis Advisor/Co-Advisor.

Subjects/Keywords: energy harvesting; vibration; rotorcraft

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APA (6^th Edition):

Mahmood, R. S. (2014). Vibration energy harvesting from rotorcraft drive systems using thermoelectric conversion of heat generated by mechanical damping. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/23693

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mahmood, Raheel Sheikh. “Vibration energy harvesting from rotorcraft drive systems using thermoelectric conversion of heat generated by mechanical damping.” 2014. Thesis, Penn State University. Accessed March 05, 2021. https://submit-etda.libraries.psu.edu/catalog/23693.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mahmood, Raheel Sheikh. “Vibration energy harvesting from rotorcraft drive systems using thermoelectric conversion of heat generated by mechanical damping.” 2014. Web. 05 Mar 2021.

Vancouver:

Mahmood RS. Vibration energy harvesting from rotorcraft drive systems using thermoelectric conversion of heat generated by mechanical damping. [Internet] [Thesis]. Penn State University; 2014. [cited 2021 Mar 05]. Available from: https://submit-etda.libraries.psu.edu/catalog/23693.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mahmood RS. Vibration energy harvesting from rotorcraft drive systems using thermoelectric conversion of heat generated by mechanical damping. [Thesis]. Penn State University; 2014. Available from: https://submit-etda.libraries.psu.edu/catalog/23693

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waterloo

26. Kayaharman, Muhammed. Design, fabrication and characterization of ferroelectret energy harvester.

Degree: 2019, University of Waterloo

URL: http://hdl.handle.net/10012/14545

► Energy harvesters gained significant interest over the last decade with the reduce in power requirements of today’s electrical devices and with the fast developments in… (more)

Subjects/Keywords: energy harvesting; piezoelectric; ferroelectret; vibration

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APA (6^th Edition):

Kayaharman, M. (2019). Design, fabrication and characterization of ferroelectret energy harvester. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/14545

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kayaharman, Muhammed. “Design, fabrication and characterization of ferroelectret energy harvester.” 2019. Thesis, University of Waterloo. Accessed March 05, 2021. http://hdl.handle.net/10012/14545.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kayaharman, Muhammed. “Design, fabrication and characterization of ferroelectret energy harvester.” 2019. Web. 05 Mar 2021.

Vancouver:

Kayaharman M. Design, fabrication and characterization of ferroelectret energy harvester. [Internet] [Thesis]. University of Waterloo; 2019. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/10012/14545.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kayaharman M. Design, fabrication and characterization of ferroelectret energy harvester. [Thesis]. University of Waterloo; 2019. Available from: http://hdl.handle.net/10012/14545

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

27. Austruy, Julien. ROTOR HUB VIBRATION AND BLADE LOADS REDUCTION, AND ENERGY HARVESTING VIA EMBEDDED RADIAL OSCILLATOR .

Degree: 2011, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/12121

► An embedded radial absorber is investigated to control helicopter rotor hub vibration and blade loads. The absorber is modeled as a discrete mass moving in… (more)

▼ An embedded radial absorber is investigated to control helicopter rotor hub vibration and blade loads. The absorber is modeled as a discrete mass moving in the spanwise direction within the blade. The absorber is retained in place and tuned with a spring and a damper. The radial absorber couples with lead-lag dynamic through Coriolis forces. The embedded radial absorber coupled to the helicopter is analyzed with a comprehensive rotorcraft model. The blade is modeled as an elastic beam undergoing flap bending, lag bending and elastic torsion, and a radial degree of freedom is added for the absorber. The tuning of the embedded radial absorber to a frequency close to 3/rev with no damping is shown to reduce significantly (up to 86%) the 4/rev in-plane hub forces of a 4-bladed hingeless rotor similar to a MBB BO-105 in high speed flight. The simulation shows that the absorber modifies the in-plane blade root shears to synchronize them to cancel each other in the transmission from rotating frame to fixed frame. A design of an embedded radial absorber experiment for hub vibration control is presented and it is concluded that for such high tuning frequencies as 3/rev, it is feasible to use a regular coil spring to compensate for the steady centrifugal force. Large reduction of blade lag shear (85%) and lag bending moment (71%) is achieved by tuning the embedded radial absorber close to 1/rev (also shown for a BO-105 like helicopter in high speed flight). The absorber reduces the amplitude of the lag bending moment at 1/rev, thus reducing the blade lead-lag motion and reducing the blade drag shear and lag bending moment. Finally, the use of the embedded radial absorber is investigated as a source electrical power when combined with an electromagnetic circuit. A model of the electromagnetic system is developed and validated, and an evaluation of the amount of power harvestable for different configurations is presented. The maximum power harvested was calculated to be 133 watts. Advisors/Committee Members: Dr Farhan Gandhi, Dissertation Advisor/Co-Advisor, Farhan S Gandhi, Committee Chair/Co-Chair, George A Lesieutre, Committee Member, Edward C Smith, Committee Member, Sean N Brennan, Committee Member, Karl Martin Reichard, Committee Member.

Subjects/Keywords: vibration control; rotorcraft; energy harvesting

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APA (6^th Edition):

Austruy, J. (2011). ROTOR HUB VIBRATION AND BLADE LOADS REDUCTION, AND ENERGY HARVESTING VIA EMBEDDED RADIAL OSCILLATOR . (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/12121

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Austruy, Julien. “ROTOR HUB VIBRATION AND BLADE LOADS REDUCTION, AND ENERGY HARVESTING VIA EMBEDDED RADIAL OSCILLATOR .” 2011. Thesis, Penn State University. Accessed March 05, 2021. https://submit-etda.libraries.psu.edu/catalog/12121.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Austruy, Julien. “ROTOR HUB VIBRATION AND BLADE LOADS REDUCTION, AND ENERGY HARVESTING VIA EMBEDDED RADIAL OSCILLATOR .” 2011. Web. 05 Mar 2021.

Vancouver:

Austruy J. ROTOR HUB VIBRATION AND BLADE LOADS REDUCTION, AND ENERGY HARVESTING VIA EMBEDDED RADIAL OSCILLATOR . [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Mar 05]. Available from: https://submit-etda.libraries.psu.edu/catalog/12121.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Austruy J. ROTOR HUB VIBRATION AND BLADE LOADS REDUCTION, AND ENERGY HARVESTING VIA EMBEDDED RADIAL OSCILLATOR . [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/12121

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

28. Zhou, Yue. High Performance Ionic Capacitive Energy Storage and Harvesting Devices.

Degree: 2015, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/27156

► Due to the deep concerns of environmental issues and the consumption of fossil fuels, such as petroleum, natural gas and coal, as well as the… (more)

▼ Due to the deep concerns of environmental issues and the consumption of fossil fuels, such as petroleum, natural gas and coal, as well as the accelerated greenhouse effect, the renewable energy sources e.g., wind, solar and hydroelectricity have attracted enormous interests. The large fluctuations of these renewable energy sources in power output have brought the vigorous development of the area of energy storage system. Supercapacitors, which bridge the gap of power and energy between batteries and dielectric capacitors, have developed fast in the last decades among these energy storage devices. Although batteries can store a large quantity of energy, they release energy in a slow rate, resulting in a very low power density with a limited lifetime. On the other hand, dielectric capacitors can be charged and discharged at high rate and hence possess very high power density, but their energy density is low. With relatively high power, mid-high energy density and long cycle lifetime, supercapacitors are attractive for many applications, such as in grid scale renewable energy storage and in hybrid electric vehicles where high energy, high power and reasonable lifetime are all required. However, the current commercial supercapacitor product still suffers from the low energy density (less than 10 Wh/kg) and low power density (1 kW/kg). Hence, it is highly desired to further improve electrochemcial performance of supercapacitors cells for the advanced and wide applications. In this dissertation, different supercapacitor cells are introduced to improve the performance by several strategies such as controlling the nanomorphology of electrodes and optimizing the cell configuration. The tortuous ion transport pathways formed in activated carbon, which is widely used as electrodes in the current commerical products, have influenced the power denisty of the cell. To overcome this drawback, the aligned carbon nanotubes (A-CNTs) were investigated in this dissetation due to the superior electrical conductivity and parallel ion pathways of electrodes. Meanwhile, to achieve high volumetric energy and power densities of the cells, a unique mechanical densification method was developed to allow the density of A-CNTs to be tuned precisely over a broad range from 1% volume fraction (Vf) to 40% Vf while preserving the straight ion pathway between A-CNTs. As a result, the supercapacitors fabricated from 40% volumetric fraction (Vf) of A-CNTs as the electrodes with the thickness of 0.8 mm exhibit a power density of 25 kW L-1 (50 kW kg-1), which is much higher than that of the A-CNTs electrodes with similar thickness fabricated by other methods and that of activated carbon electrodes. Pseudocapacitive materials, such as conducitng polymers and transition metal oxides, can be incorporated into the electrode to increase the specific capacitance because the whole bulk (not only the surface for pure carbon electrode) of pseudocapacitive material has involved the electrochemical energy storage. Poly(ethylenedioxythiophene) (PEDOT) was studied as… Advisors/Committee Members: Qiming Zhang, Dissertation Advisor/Co-Advisor, Qiming Zhang, Committee Chair/Co-Chair, Shizhuo Yin, Committee Member, Noel Christopher Giebink, Committee Member, Qing Wang, Committee Member.

Subjects/Keywords: Energy storage; Energy harvesting; supercapacitor

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APA (6^th Edition):

Zhou, Y. (2015). High Performance Ionic Capacitive Energy Storage and Harvesting Devices. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/27156

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zhou, Yue. “High Performance Ionic Capacitive Energy Storage and Harvesting Devices.” 2015. Thesis, Penn State University. Accessed March 05, 2021. https://submit-etda.libraries.psu.edu/catalog/27156.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zhou, Yue. “High Performance Ionic Capacitive Energy Storage and Harvesting Devices.” 2015. Web. 05 Mar 2021.

Vancouver:

Zhou Y. High Performance Ionic Capacitive Energy Storage and Harvesting Devices. [Internet] [Thesis]. Penn State University; 2015. [cited 2021 Mar 05]. Available from: https://submit-etda.libraries.psu.edu/catalog/27156.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zhou Y. High Performance Ionic Capacitive Energy Storage and Harvesting Devices. [Thesis]. Penn State University; 2015. Available from: https://submit-etda.libraries.psu.edu/catalog/27156

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

29. Moss, William Tyler. Miniature Autonomous Robots for Pipeline Inspection.

Degree: MS, Aerospace Engineering, 2016, Texas A&M University

URL: http://hdl.handle.net/1969.1/158949

► Aging natural gas pipeline infrastructure is becoming an increasingly large problem in the United States. There are more than 2.4 million miles of pipelines currently… (more)

▼ Aging natural gas pipeline infrastructure is becoming an increasingly large problem in the United States. There are more than 2.4 million miles of pipelines currently in use, all of which require regular maintenance and inspection to ensure safety. It is estimated that 70% of these lines were installed prior to the widespread use of the most common inspection tool, pigs, and therefore require some other tool to carry out tasks such as direct line inspection, pipeline mapping, gas quality monitoring, and cleaning. This has prompted a large growth in the area of robotic inspection devices to fill this market gap. However, many of the robots developed either fall short of true autonomy, are unable to operate in live flow conditions, or are designed for only a specific pipe size. This thesis details the design of a robotic platform called MARPI, or Miniature Autonomous Robot for Pipeline Inspection, which addresses the weaknesses of both pigs and previous robots. MARPI is a wheeled robot that was developed to include several key features: energy harvesting, wireless communication, onboard navigation system, and a small profile and footprint in the pipe. The robot uses two 150:1 micro gear motors for its drive mechanism and features a permanent Neodymium magnet to make the robot adhere to the surface of steel pipes. The energy harvesting system was characterized through a series of wind tunnel experiments which showed that to maximize the power generated it is best to have a turbine with a high number of buckets/blades, streamlined bucket geometry, and a relatively large offset from a bluff body below. To carry out the design of MARPI, a statics model was developed and used to predict the magnetic force required to adhere to and avoid sliding in the pipe, and the motor torque required to propel the robot. This model was used to analyze the performance of the robot as a function of robot size. Key results show that to minimize power consumption, the robot should travel vertically with the flow, and to maximize range per day, a small robot with a large turbine is best. Advisors/Committee Members: Boyd, James G (advisor), Bhattacharya, Raktim (committee member), Malak, Richard (committee member).

Subjects/Keywords: Robotics; Pipeline Inspection; Energy Harvesting

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Moss, W. T. (2016). Miniature Autonomous Robots for Pipeline Inspection. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/158949

Chicago Manual of Style (16^th Edition):

Moss, William Tyler. “Miniature Autonomous Robots for Pipeline Inspection.” 2016. Masters Thesis, Texas A&M University. Accessed March 05, 2021. http://hdl.handle.net/1969.1/158949.

MLA Handbook (7^th Edition):

Moss, William Tyler. “Miniature Autonomous Robots for Pipeline Inspection.” 2016. Web. 05 Mar 2021.

Vancouver:

Moss WT. Miniature Autonomous Robots for Pipeline Inspection. [Internet] [Masters thesis]. Texas A&M University; 2016. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1969.1/158949.

Council of Science Editors:

Moss WT. Miniature Autonomous Robots for Pipeline Inspection. [Masters Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/158949

Penn State University

30. Vitt, Nikolas Troy. Investigation of a Balanced-Armature Transducer for Vibrational Energy Harvesting .

Degree: 2011, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/12164

► There are countless portable devices that rely on batteries to operate. In some applications, replacing or recharging batteries is not feasible or is… (more)

▼ There are countless portable devices that rely on batteries to operate. In some applications, replacing or recharging batteries is not feasible or is very costly. One promising solution for extending the life of low power portable devices that rely on stored energy is vibrational energy harvesting. This thesis investigates the potential of using a commercially available hearing aid loudspeaker as a vibrational energy harvesting device. The device under study is the Knowles CI-28409 balanced armature transducer. In addition to being commercially available, the CI-28409 is attractive because it has an overall device volume of just 0.28 cm3. Moreover, the use of balanced armature transducers for energy harvesting has yet to be explored in the literature. A primary contribution of this work is the development of an analog circuit model of the CI-28409, which captures the behavior of the device when subjected to vibration inputs. In addition, electrical input impedance measurements and vibration response measurements of the CI-28409 are made. These measurements are used to verify the validity of the model and to establish the baseline performance of the device as an energy harvester. The model and measurements show that using the CI-28409 as an energy harvesting device without any modifications is impractical. For an input acceleration of 9.8 m/s2 applied to the housing of the CI-28409, measurements showed that the device is only capable of producing a maximum of roughly 80 nW into an 825Ω resistor at 1.7 kHz. However, the proposed model predicts that, by modifying the design so that the vibrations are applied to the armature while allowing the rest of the device to move freely, the Knowles CI-28409 may be able to produce as much as 57 μW of power for an input acceleration of 8.8 m/s2 at 250 Hz. Advisors/Committee Members: Stephen Thompson, Thesis Advisor/Co-Advisor, Stephen Thompson, Thesis Advisor/Co-Advisor.

Subjects/Keywords: energy harvesting; Balanced-armature; transducer

Record Details Similar Records Cite « Share

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Vitt, N. T. (2011). Investigation of a Balanced-Armature Transducer for Vibrational Energy Harvesting . (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/12164

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Vitt, Nikolas Troy. “Investigation of a Balanced-Armature Transducer for Vibrational Energy Harvesting .” 2011. Thesis, Penn State University. Accessed March 05, 2021. https://submit-etda.libraries.psu.edu/catalog/12164.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Vitt, Nikolas Troy. “Investigation of a Balanced-Armature Transducer for Vibrational Energy Harvesting .” 2011. Web. 05 Mar 2021.

Vancouver:

Vitt NT. Investigation of a Balanced-Armature Transducer for Vibrational Energy Harvesting . [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Mar 05]. Available from: https://submit-etda.libraries.psu.edu/catalog/12164.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Vitt NT. Investigation of a Balanced-Armature Transducer for Vibrational Energy Harvesting . [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/12164

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Open Access Theses and Dissertations