subject:(Hysteresis)

Ryerson University

1. Wang, Zhao. Implementation of Preisach-Krasnoselskii Hysteresis Model with the Use of Artificial Neural Networks.

Degree: 2004, Ryerson University

URL: https://digital.library.ryerson.ca/islandora/object/RULA%3A1932

► Accurate modeling of hysteresis is essential for both the design and performance evaluation of electromagnetic devices. This project proposes the use of feedforward meural networks… (more)

Subjects/Keywords: Hysteresis

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APA (6^th Edition):

Wang, Z. (2004). Implementation of Preisach-Krasnoselskii Hysteresis Model with the Use of Artificial Neural Networks. (Thesis). Ryerson University. Retrieved from https://digital.library.ryerson.ca/islandora/object/RULA%3A1932

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):

Wang, Zhao. “Implementation of Preisach-Krasnoselskii Hysteresis Model with the Use of Artificial Neural Networks.” 2004. Thesis, Ryerson University. Accessed March 02, 2021. https://digital.library.ryerson.ca/islandora/object/RULA%3A1932.

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

MLA Handbook (7^th Edition):

Wang, Zhao. “Implementation of Preisach-Krasnoselskii Hysteresis Model with the Use of Artificial Neural Networks.” 2004. Web. 02 Mar 2021.

Vancouver:

Wang Z. Implementation of Preisach-Krasnoselskii Hysteresis Model with the Use of Artificial Neural Networks. [Internet] [Thesis]. Ryerson University; 2004. [cited 2021 Mar 02]. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A1932.

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

Council of Science Editors:

Wang Z. Implementation of Preisach-Krasnoselskii Hysteresis Model with the Use of Artificial Neural Networks. [Thesis]. Ryerson University; 2004. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A1932

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

Oregon State University

2. Cox, Walter Allen. The energy hysteresis of a collagenous material.

Degree: MS, Physics, 1937, Oregon State University

URL: http://hdl.handle.net/1957/52472

Subjects/Keywords: Hysteresis

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APA (6^th Edition):

Cox, W. A. (1937). The energy hysteresis of a collagenous material. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/52472

Chicago Manual of Style (16^th Edition):

Cox, Walter Allen. “The energy hysteresis of a collagenous material.” 1937. Masters Thesis, Oregon State University. Accessed March 02, 2021. http://hdl.handle.net/1957/52472.

MLA Handbook (7^th Edition):

Cox, Walter Allen. “The energy hysteresis of a collagenous material.” 1937. Web. 02 Mar 2021.

Vancouver:

Cox WA. The energy hysteresis of a collagenous material. [Internet] [Masters thesis]. Oregon State University; 1937. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/1957/52472.

Council of Science Editors:

Cox WA. The energy hysteresis of a collagenous material. [Masters Thesis]. Oregon State University; 1937. Available from: http://hdl.handle.net/1957/52472

3. Roberto Wagner Jubert. Desempenho do setor industrial exportador brasileiro pela ótica de hysteresis: (1999-2007).

Degree: 2009, Universidade Federal da Paraíba

URL: http://bdtd.biblioteca.ufpb.br/tde_busca/arquivo.php?codArquivo=579

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Esta dissertação teve como objetivo identificar a existência de hysteresis nas exportações do setor industrial brasileiro. Portanto, foi realizada a análise descritiva das exportações (Free… (more)

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Esta dissertação teve como objetivo identificar a existência de hysteresis nas exportações do setor industrial brasileiro. Portanto, foi realizada a análise descritiva das exportações (Free on board), das quantidades exportadas (quantum) e índices de preço, como também, a estimação de parâmetros de diferenciação fracionária para mensurar hysteresis. Da análise descritiva é demonstrada evidências de hysteresis após o ano de 1999 nas exportações industriais, além disso, é evidenciada não persistência das empresas de médio porte em períodos de câmbio desfavorável e persistência de empresas de grande porte. Os resultados das estimações corroboram com a análise descritiva, identificam hysteresis com efeitos parciais para o período 1999-2002 e hysteresis para o período 2003-2007. Dos setores industriais estudados, foram destacados dois grupos exportadores de produtos industriais, sendo o Grupo 1 caracterizado por setores que apresentam a transição de hysteresis com efeitos parciais para hysteresis.

This thesis had as main objective to identify the existence of hysteresis in exports of the Brazilian industrial sector. Therefore, we performed a descriptive analysis of exports (free on board), the quantities exported (quantum) and price indices, as well as the estimation of parameters of fractional differentiation to measure hysteresis. Of descriptive analysis is demonstrated evidence of hysteresis after the year 1999 in industrial exports, moreover, is not apparent persistence of medium-sized companies in periods of unfavorable exchange rate and persistence of large companies. The results of estimations corroborate the descriptive analysis identify hysteresis with partial effects for the period 1999-2002 and hysteresis for the period 2003-2007. Of the industries studied, two groups were prominent exporters of industrial products, with group 1 for sectors that have characterized the transition from partial to hysteresis with hysteresis effects.

Advisors/Committee Members: Sinézio Fernandes Maia.

Subjects/Keywords: Exportações; Hysteresis; Brasil; ECONOMIA; Exports; Hysteresis; Brazil

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APA (6^th Edition):

Jubert, R. W. (2009). Desempenho do setor industrial exportador brasileiro pela ótica de hysteresis: (1999-2007). (Thesis). Universidade Federal da Paraíba. Retrieved from http://bdtd.biblioteca.ufpb.br/tde_busca/arquivo.php?codArquivo=579

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):

Jubert, Roberto Wagner. “Desempenho do setor industrial exportador brasileiro pela ótica de hysteresis: (1999-2007).” 2009. Thesis, Universidade Federal da Paraíba. Accessed March 02, 2021. http://bdtd.biblioteca.ufpb.br/tde_busca/arquivo.php?codArquivo=579.

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

MLA Handbook (7^th Edition):

Jubert, Roberto Wagner. “Desempenho do setor industrial exportador brasileiro pela ótica de hysteresis: (1999-2007).” 2009. Web. 02 Mar 2021.

Vancouver:

Jubert RW. Desempenho do setor industrial exportador brasileiro pela ótica de hysteresis: (1999-2007). [Internet] [Thesis]. Universidade Federal da Paraíba; 2009. [cited 2021 Mar 02]. Available from: http://bdtd.biblioteca.ufpb.br/tde_busca/arquivo.php?codArquivo=579.

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

Council of Science Editors:

Jubert RW. Desempenho do setor industrial exportador brasileiro pela ótica de hysteresis: (1999-2007). [Thesis]. Universidade Federal da Paraíba; 2009. Available from: http://bdtd.biblioteca.ufpb.br/tde_busca/arquivo.php?codArquivo=579

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

Wright State University

4. Alsari, Saad. The Influence of a Surface on Hysteresis Loops for Single-Domain Ferromagnetic Nanoparticles.

Degree: MS, Physics, 2018, Wright State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=wright1525715329704504

► The influence of surface effects on a hysteresis loop for single domain, ferromagnetic nanoparticles was examined. Theoretical equations were derived to describe the magnetic behavior… (more)

Subjects/Keywords: Physics; Hysteresis; Hysteresis Loop; Ferromagnetic; Nanoparticles

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APA (6^th Edition):

Alsari, S. (2018). The Influence of a Surface on Hysteresis Loops for Single-Domain Ferromagnetic Nanoparticles. (Masters Thesis). Wright State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=wright1525715329704504

Chicago Manual of Style (16^th Edition):

Alsari, Saad. “The Influence of a Surface on Hysteresis Loops for Single-Domain Ferromagnetic Nanoparticles.” 2018. Masters Thesis, Wright State University. Accessed March 02, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=wright1525715329704504.

MLA Handbook (7^th Edition):

Alsari, Saad. “The Influence of a Surface on Hysteresis Loops for Single-Domain Ferromagnetic Nanoparticles.” 2018. Web. 02 Mar 2021.

Vancouver:

Alsari S. The Influence of a Surface on Hysteresis Loops for Single-Domain Ferromagnetic Nanoparticles. [Internet] [Masters thesis]. Wright State University; 2018. [cited 2021 Mar 02]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=wright1525715329704504.

Council of Science Editors:

Alsari S. The Influence of a Surface on Hysteresis Loops for Single-Domain Ferromagnetic Nanoparticles. [Masters Thesis]. Wright State University; 2018. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=wright1525715329704504

University of Kashmir

5. Ahanger, Manzoor Ahmad. Hysteresis effect on sediment transport rate in Alluvial channels;.

Degree: 2015, University of Kashmir

URL: http://shodhganga.inflibnet.ac.in/handle/10603/50925

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The main aim of the present study is to evolve a procedure for finding out the sediment discharge q during an unsteady flow newlineFor this… (more)

Subjects/Keywords: Sediment-Alluvial-Hysteresis

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APA (6^th Edition):

Ahanger, M. A. (2015). Hysteresis effect on sediment transport rate in Alluvial channels;. (Thesis). University of Kashmir. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/50925

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):

Ahanger, Manzoor Ahmad. “Hysteresis effect on sediment transport rate in Alluvial channels;.” 2015. Thesis, University of Kashmir. Accessed March 02, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/50925.

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

MLA Handbook (7^th Edition):

Ahanger, Manzoor Ahmad. “Hysteresis effect on sediment transport rate in Alluvial channels;.” 2015. Web. 02 Mar 2021.

Vancouver:

Ahanger MA. Hysteresis effect on sediment transport rate in Alluvial channels;. [Internet] [Thesis]. University of Kashmir; 2015. [cited 2021 Mar 02]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/50925.

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

Council of Science Editors:

Ahanger MA. Hysteresis effect on sediment transport rate in Alluvial channels;. [Thesis]. University of Kashmir; 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/50925

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

University of Kashmir

6. Ahanger, Manzoor Ahmad. Hysteresis effect on sediment transport rate in Alluvial channels; -.

Degree: Engineering, 2006, University of Kashmir

URL: http://shodhganga.inflibnet.ac.in/handle/10603/49092

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The main aim of the present study is to evolve a procedure for finding out the sediment discharge q during an unsteady flow newlineFor this… (more)

Subjects/Keywords: Alluvial; Hysteresis; Sediment

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APA (6^th Edition):

Ahanger, M. A. (2006). Hysteresis effect on sediment transport rate in Alluvial channels; -. (Thesis). University of Kashmir. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/49092

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):

Ahanger, Manzoor Ahmad. “Hysteresis effect on sediment transport rate in Alluvial channels; -.” 2006. Thesis, University of Kashmir. Accessed March 02, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/49092.

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

MLA Handbook (7^th Edition):

Ahanger, Manzoor Ahmad. “Hysteresis effect on sediment transport rate in Alluvial channels; -.” 2006. Web. 02 Mar 2021.

Vancouver:

Ahanger MA. Hysteresis effect on sediment transport rate in Alluvial channels; -. [Internet] [Thesis]. University of Kashmir; 2006. [cited 2021 Mar 02]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/49092.

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

Council of Science Editors:

Ahanger MA. Hysteresis effect on sediment transport rate in Alluvial channels; -. [Thesis]. University of Kashmir; 2006. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/49092

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

Michigan State University

7. Esbrook, Alexander James. Control of systems with hysteresis using servocompensators.

Degree: 2012, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:499

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Thesis Ph. D. Michigan State University, Electrical Engineering 2012.

The tracking problem in systems with hysteresis has become an important topic of research in the… (more)

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Thesis Ph. D. Michigan State University, Electrical Engineering 2012.

The tracking problem in systems with hysteresis has become an important topic of research in the past two decades, due in large part to advances in smart material actuators. In particular, applications like Scanning Probe Microscopy require high performance from hysteretic smart material actuators. Servocompensators, or internal model controllers, have been used successfully in many varieties of tracking problems for both linear and nonlinear systems; therefore, their application to systems with hysteresis is considered in this dissertation. The use of Multi-Harmonic Servocompensators (MHSC) is first proposed to simultaneously compensate for hysteresis and enable high-bandwidth tracking in systems with hysteresis, such as nanopositioners. With the model represented by linear dynamics preceded with a Prandtl-Ishlinskii hysteresis operator, the stability and periodicity of the closed-loop system's solutions are established when hysteresis inversion is included in the controller. Experiments on a commercial nanopositioner show that, with the proposed method, tracking can be achieved for a 200 Hz reference signal with 0.52% mean error and 1.5% peak error over a travel range of 40 μm. Additionally, the proposed method is shown at high frequencies to be superior to Iterative Learning Control (ILC), a common technique in nanopositioning control.The theoretical and practical weaknesses of the proposed approach are then addressed. First, the design of a novel adaptive servocompensator specialized to systems with hysteresis is presented, based on frequency estimation coupled with slow adaptation, and the stability in cases with one, two, or n unknown frequencies are established. Next, a condition in the form of a Linear Matrix Inequality is presented proving the stability of the proposed MHSC when hysteresis inversion is not used. It is then experimentally demonstrated that removing hysteresis inversion further reduces the tracking error achievable by the MHSC. Finally, the properties of self-excited limit cycles are studied for an integral-controlled system containing a play operator. A Newton-Raphson algorithm is formulated to calculate the limit cycles, and linear relationships between the amplitude and period of these limit cycles and system parameters are obtained.

Description based on online resource; title from PDF t.p. (ProQuest, viewed on Sept. 26, 2013)

Advisors/Committee Members: Tan, Xiaobo, Khalil, Hassan K, Zhu, George, Xi, Ning.

Subjects/Keywords: Hysteresis; Electrical engineering

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APA (6^th Edition):

Esbrook, A. J. (2012). Control of systems with hysteresis using servocompensators. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:499

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):

Esbrook, Alexander James. “Control of systems with hysteresis using servocompensators.” 2012. Thesis, Michigan State University. Accessed March 02, 2021. http://etd.lib.msu.edu/islandora/object/etd:499.

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

MLA Handbook (7^th Edition):

Esbrook, Alexander James. “Control of systems with hysteresis using servocompensators.” 2012. Web. 02 Mar 2021.

Vancouver:

Esbrook AJ. Control of systems with hysteresis using servocompensators. [Internet] [Thesis]. Michigan State University; 2012. [cited 2021 Mar 02]. Available from: http://etd.lib.msu.edu/islandora/object/etd:499.

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

Council of Science Editors:

Esbrook AJ. Control of systems with hysteresis using servocompensators. [Thesis]. Michigan State University; 2012. Available from: http://etd.lib.msu.edu/islandora/object/etd:499

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

Michigan State University

8. Zhang, Jun. Modeling, identification, and control of hysteretic systems with application to vanadium dioxide microactuators.

Degree: 2015, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:3520

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Thesis Ph. D. Michigan State University. Electrical Engineering 2015.

Hysteresis nonlinearity in magnetic and smart material systems hinders the realization of their potential in sensors… (more)

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Thesis Ph. D. Michigan State University. Electrical Engineering 2015.

Hysteresis nonlinearity in magnetic and smart material systems hinders the realization of their potential in sensors and actuators. The goal of this dissertation is to advance methods for modeling, identification, and control of hysteretic systems. These methods are applied to the inverse compensation, self-sensing feedback control, and robust control of vanadium dioxide (VO2) microactuators. As a novel smart material, VO2 undergoes a thermally induced insulator-to-metal transition and a structural phase transition, exhibiting pronounced hysteresis in electrical and mechanical domains. With the goal of obtaining accurate hysteresis models while maintaining a low model complexity, optimal compressions for two popular hysteresis models, namely the Preisach operator and the generalized Prandtl-Ishlinskii (GPI) model, are studied, where the Kullback-Leibler divergence and entropy, respectively, are adopted to quantify the information loss in model compression. While the optimal compression of the Preisach operator is realized using exhaustive search, dynamic programming is employed to optimally compress the GPI model efficiently. Both simulation and experimental results demonstrate that the proposed algorithms yield superior performances than typically adopted schemes. In order to identify the Preisach operator, existing work involves applying a complicated input sequence and measuring a large set of output data. We propose an efficient approach to identify the Preisach operator that requires fewer measurements. The output of the Preisach operator is transformed into the frequency domain, generating a sparse vector of discrete cosine transform (DCT) coefficients. The model parameters are reconstructed using a compressive sensing-based algorithm. The effectiveness of the proposed scheme is illustrated through simulation and experiments. A few new contributions have been made to the modeling and control of VO2 microactuators. In order to capture the non-monotonic curvature-temperature hysteresis of VO2 microactuators, physics-motivated models that combine a monotonic hysteresis operator for phase transition induced curvature and a memoryless operator for differential thermal expansion induced curvature are proposed. Effective inverse compensation schemes for the proposed non-monotonic hysteresis models are presented. The modeling and inverse compensation schemes are validated experimentally. Since external sensing systems are not desirable with micro devices, a self-sensing model is developed for VO2 microactuators to estimate the deflection from the resistance measurement. We exploit the physical understanding that each of the resistance and the deflection is determined by a hysteretic relationship with the temperature, which is modeled with a GPI model and an extended GPI model, respectively. The self-sensing model is obtained by cascading the extended GPI model with the inverse of the GPI model. The performance of the self-sensing scheme is…

Advisors/Committee Members: Tan, Xiaobo, Sepulveda, Nelson, Khalil, Hassan, Mukherjee, Ranjan.

Subjects/Keywords: Hysteresis; Microactuators; Engineering

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APA (6^th Edition):

Zhang, J. (2015). Modeling, identification, and control of hysteretic systems with application to vanadium dioxide microactuators. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:3520

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):

Zhang, Jun. “Modeling, identification, and control of hysteretic systems with application to vanadium dioxide microactuators.” 2015. Thesis, Michigan State University. Accessed March 02, 2021. http://etd.lib.msu.edu/islandora/object/etd:3520.

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

MLA Handbook (7^th Edition):

Zhang, Jun. “Modeling, identification, and control of hysteretic systems with application to vanadium dioxide microactuators.” 2015. Web. 02 Mar 2021.

Vancouver:

Zhang J. Modeling, identification, and control of hysteretic systems with application to vanadium dioxide microactuators. [Internet] [Thesis]. Michigan State University; 2015. [cited 2021 Mar 02]. Available from: http://etd.lib.msu.edu/islandora/object/etd:3520.

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

Council of Science Editors:

Zhang J. Modeling, identification, and control of hysteretic systems with application to vanadium dioxide microactuators. [Thesis]. Michigan State University; 2015. Available from: http://etd.lib.msu.edu/islandora/object/etd:3520

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

University of Waterloo

9. Valadkhan, Sina. Nano Positioning Control Using Magnetostrictive Actuators.

Degree: 2007, University of Waterloo

URL: http://hdl.handle.net/10012/3043

► The focus of this thesis is on the development of control systems for nano- positioning actuators using magnetostrictive materials. Magnetostrictive materials have large strokes and… (more)

Subjects/Keywords: hysteresis; control

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APA (6^th Edition):

Valadkhan, S. (2007). Nano Positioning Control Using Magnetostrictive Actuators. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/3043

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):

Valadkhan, Sina. “Nano Positioning Control Using Magnetostrictive Actuators.” 2007. Thesis, University of Waterloo. Accessed March 02, 2021. http://hdl.handle.net/10012/3043.

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

MLA Handbook (7^th Edition):

Valadkhan, Sina. “Nano Positioning Control Using Magnetostrictive Actuators.” 2007. Web. 02 Mar 2021.

Vancouver:

Valadkhan S. Nano Positioning Control Using Magnetostrictive Actuators. [Internet] [Thesis]. University of Waterloo; 2007. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10012/3043.

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

Council of Science Editors:

Valadkhan S. Nano Positioning Control Using Magnetostrictive Actuators. [Thesis]. University of Waterloo; 2007. Available from: http://hdl.handle.net/10012/3043

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

North Carolina State University

10. Fan, Xiang. Adaptive Control of Hysteretic Smart Material Systems.

Degree: PhD, Applied Mathematics, 2009, North Carolina State University

URL: http://www.lib.ncsu.edu/resolver/1840.16/4648

► Smart materials exhibit nonlinearities and hysteresis when driven at field levels necessary to meet stringent performance criteria in high performance applications. This requires models and… (more)

▼ Smart materials exhibit nonlinearities and hysteresis when driven at field levels necessary to meet stringent performance criteria in high performance applications. This requires models and control designs that effectively compensate for the nonlinear, hysteretic field-coupled material behavior. In this dissertation, we investigate model identification using the homogenized energy model and adaptive control of hysteresis in smart hysteretic system, while the approaches are applicable to control of a wide class of ferroelectric, ferromagnetic and ferroelastic materials, we illustrate the ideas through the example of controlling a ferroelectric actuator. We pursue the problem of hysteresis control through two complimentary approaches: linear adaptive control using an inverse compensator and nonlinear adaptive control. Inverse control is a fundamental approach to accommodate hysteresis effect by constructing a right inverse of the hysteresis. Due to the open-loop nature of inverse control, the performance of the inverse compensation is susceptible to model uncertainties and to error introduced by inexact inverse algorithms. The objective of adaptive control is to design a controller that can adjust its behavior to tolerate uncertainties or time-varying parameters. We employ the homogenized energy model to quantify the hysteresis. On the basis of the hysteresis model, we propose an adaptive control framework by combining inverse compensation with adaptive control techniques, and investigate the parameter identification methods for the hysteresis model. We prove the asymptotic tracking property of the proposed adaptive inverse control algorithm, discuss the issue of parameters convergence and illustrate the performance of the proposed control method through simulations. Adaptive nonlinear control is a more challenging task and has received increasing attention in recent years. The challenge addressed here is how to fuse hysteresis models with available adaptive control techniques to have the basic requirement of stability of the system. In this dissertation, an adaptive variable structure control approach, serving as an illustration, is fused with the homogenized energy model without constructing a hysteresis inverse. The global stability of the system and tracking a desire trajectory to a certain precision are achieved under certain conditions. Simulations are performed on an unstable nonlinear system. The purpose of exploring new avenues to fuse the model of hysteresis nonlinearities with the available adaptive controller designs without constructing a hysteresis inverse is achieved and illustrated with the promising simulation results. This provides a step toward the development of a general nonlinear adaptive control framework for hysteretic systems. Advisors/Committee Members: Ralph Smith, Committee Chair (advisor).

Subjects/Keywords: Smart Materials; Hysteresis; Adaptive Control

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APA (6^th Edition):

Fan, X. (2009). Adaptive Control of Hysteretic Smart Material Systems. (Doctoral Dissertation). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/4648

Chicago Manual of Style (16^th Edition):

Fan, Xiang. “Adaptive Control of Hysteretic Smart Material Systems.” 2009. Doctoral Dissertation, North Carolina State University. Accessed March 02, 2021. http://www.lib.ncsu.edu/resolver/1840.16/4648.

MLA Handbook (7^th Edition):

Fan, Xiang. “Adaptive Control of Hysteretic Smart Material Systems.” 2009. Web. 02 Mar 2021.

Vancouver:

Fan X. Adaptive Control of Hysteretic Smart Material Systems. [Internet] [Doctoral dissertation]. North Carolina State University; 2009. [cited 2021 Mar 02]. Available from: http://www.lib.ncsu.edu/resolver/1840.16/4648.

Council of Science Editors:

Fan X. Adaptive Control of Hysteretic Smart Material Systems. [Doctoral Dissertation]. North Carolina State University; 2009. Available from: http://www.lib.ncsu.edu/resolver/1840.16/4648

Rice University

11. Grimmer, Michael L. Analysis of Hysteretic Systems: Preisach Formalism and Bouc-Wen Modeling.

Degree: MS, Engineering, 2017, Rice University

URL: http://hdl.handle.net/1911/96148

► The inherently nonlinear phenomenon of hysteresis is notoriously difficult to model. Of notable interest are the inverse models of hysteresis which identify the parameters of… (more)

Subjects/Keywords: Hysteresis; Preisach; Bouc-Wen

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APA (6^th Edition):

Grimmer, M. L. (2017). Analysis of Hysteretic Systems: Preisach Formalism and Bouc-Wen Modeling. (Masters Thesis). Rice University. Retrieved from http://hdl.handle.net/1911/96148

Chicago Manual of Style (16^th Edition):

Grimmer, Michael L. “Analysis of Hysteretic Systems: Preisach Formalism and Bouc-Wen Modeling.” 2017. Masters Thesis, Rice University. Accessed March 02, 2021. http://hdl.handle.net/1911/96148.

MLA Handbook (7^th Edition):

Grimmer, Michael L. “Analysis of Hysteretic Systems: Preisach Formalism and Bouc-Wen Modeling.” 2017. Web. 02 Mar 2021.

Vancouver:

Grimmer ML. Analysis of Hysteretic Systems: Preisach Formalism and Bouc-Wen Modeling. [Internet] [Masters thesis]. Rice University; 2017. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/1911/96148.

Council of Science Editors:

Grimmer ML. Analysis of Hysteretic Systems: Preisach Formalism and Bouc-Wen Modeling. [Masters Thesis]. Rice University; 2017. Available from: http://hdl.handle.net/1911/96148

Michigan State University

12. Reynolds, James J. An investigation of model reference adaptive control of unknown dynamic hysteretic systems using slow adaptation.

Degree: MS, Department of Electrical and Computer Engineering, 2007, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:38769

Subjects/Keywords: Hysteresis loop

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

APA (6^th Edition):

Reynolds, J. J. (2007). An investigation of model reference adaptive control of unknown dynamic hysteretic systems using slow adaptation. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:38769

Chicago Manual of Style (16^th Edition):

Reynolds, James J. “An investigation of model reference adaptive control of unknown dynamic hysteretic systems using slow adaptation.” 2007. Masters Thesis, Michigan State University. Accessed March 02, 2021. http://etd.lib.msu.edu/islandora/object/etd:38769.

MLA Handbook (7^th Edition):

Reynolds, James J. “An investigation of model reference adaptive control of unknown dynamic hysteretic systems using slow adaptation.” 2007. Web. 02 Mar 2021.

Vancouver:

Reynolds JJ. An investigation of model reference adaptive control of unknown dynamic hysteretic systems using slow adaptation. [Internet] [Masters thesis]. Michigan State University; 2007. [cited 2021 Mar 02]. Available from: http://etd.lib.msu.edu/islandora/object/etd:38769.

Council of Science Editors:

Reynolds JJ. An investigation of model reference adaptive control of unknown dynamic hysteretic systems using slow adaptation. [Masters Thesis]. Michigan State University; 2007. Available from: http://etd.lib.msu.edu/islandora/object/etd:38769

University of Arizona

13. Dobrzynski, Robert Edmund, 1926-. Acceleration induced hysteresis in a contactor type servomechanism .

Degree: 1959, University of Arizona

URL: http://hdl.handle.net/10150/551409

Subjects/Keywords: Hysteresis.; Servomechanisms.

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

APA (6^th Edition):

Dobrzynski, Robert Edmund, 1. (1959). Acceleration induced hysteresis in a contactor type servomechanism . (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/551409

Chicago Manual of Style (16^th Edition):

Dobrzynski, Robert Edmund, 1926-. “Acceleration induced hysteresis in a contactor type servomechanism .” 1959. Masters Thesis, University of Arizona. Accessed March 02, 2021. http://hdl.handle.net/10150/551409.

MLA Handbook (7^th Edition):

Dobrzynski, Robert Edmund, 1926-. “Acceleration induced hysteresis in a contactor type servomechanism .” 1959. Web. 02 Mar 2021.

Vancouver:

Dobrzynski, Robert Edmund 1. Acceleration induced hysteresis in a contactor type servomechanism . [Internet] [Masters thesis]. University of Arizona; 1959. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10150/551409.

Council of Science Editors:

Dobrzynski, Robert Edmund 1. Acceleration induced hysteresis in a contactor type servomechanism . [Masters Thesis]. University of Arizona; 1959. Available from: http://hdl.handle.net/10150/551409

University of Waterloo

14. Abedi, Ali. The Effect of an Axial Catalyst Distribution on the Performance of a Diesel Oxidation Catalyst and Inverse Hysteresis Phenomena during CO and C3H6 Oxidation.

Degree: 2012, University of Waterloo

URL: http://hdl.handle.net/10012/6996

► The Diesel Oxidation Catalyst (DOC) is a key component in the exhaust after-treatment system of diesel engines. In this study two aspects of a DOC… (more)

▼ The Diesel Oxidation Catalyst (DOC) is a key component in the exhaust after-treatment system of diesel engines. In this study two aspects of a DOC were investigated: catalyst distribution and reactant species interactions. In the first part, the effect of an axial Pt distribution along a DOC was investigated by comparing a standard sample, with a homogeneous Pt distribution along the length, with a zoned sample, where the Pt was non-homogeneously distributed along the length. Temperature-programmed oxidation (TPO) and spatially-resolved gas-phase concentration measurement experiments were used to compare the CO, C3H6 and NO oxidation performance of the standard and zoned catalysts. Both catalyst types had the same total amount of Pt but different distributions. The zoned catalyst, with more Pt located in the upstream portion, showed better performance than the standard catalyst, especially at high total flow rate and when a mixture of the reactants were used. The superior performance of the zoned sample is due to a larger, localized exotherm in the upstream region, where more Pt is located, and a decrease in the self-poisoning effect downstream, where reaction light-off occurs. In addition, catalyst durability against thermal degradation was tested by exposing the whole catalyst (homogeneous aging) and part of the catalyst (heterogeneous aging) to high temperatures. In general, the zoned catalyst showed better performance than the standard catalyst after thermal aging, especially after heterogeneous aging. The reason for the superior performance of the zoned catalyst, especially after heterogeneous aging, is that the back of the catalyst, which is exposed to higher temperature, contains less Pt than the front; therefore, most of the Pt particles in the zoned catalyst were not affected by thermal aging. However, after homogeneous aging, the performance of the standard catalyst was better than the zoned catalyst at higher flow rate and temperature most likely due to the different sintering rates in the zoned sample compared to the standard one. In the second part of this research, the interactions between CO, C3H6, H2, and NO were tested over a commercial Pt/Al2O3 monolith sample by studying these reactions during ignition and extinction (warm-up and cool-down). Results showed that CO, C3H6, and NO inhibit their own oxidation and each other’s oxidation due to the self-poisoning effect and competitive adsorption over active sites. In the case of a CO + C3H6 mixture, interesting CO and C3H6 oxidation trends were observed during the extinction phase. As the C3H6 concentration increased in the mixture, the catalytic activity of CO oxidation during the extinction phase decreased until it was actually poorer than that during the ignition phase. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) showed different C3H6 oxidation intermediates during the extinction phase on the catalyst surface, thus blocking active sites and lowering catalyst activity.

Subjects/Keywords: Diesel Oxidation Catalyst; Hysteresis

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

APA (6^th Edition):

Abedi, A. (2012). The Effect of an Axial Catalyst Distribution on the Performance of a Diesel Oxidation Catalyst and Inverse Hysteresis Phenomena during CO and C3H6 Oxidation. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/6996

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):

Abedi, Ali. “The Effect of an Axial Catalyst Distribution on the Performance of a Diesel Oxidation Catalyst and Inverse Hysteresis Phenomena during CO and C3H6 Oxidation.” 2012. Thesis, University of Waterloo. Accessed March 02, 2021. http://hdl.handle.net/10012/6996.

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

MLA Handbook (7^th Edition):

Abedi, Ali. “The Effect of an Axial Catalyst Distribution on the Performance of a Diesel Oxidation Catalyst and Inverse Hysteresis Phenomena during CO and C3H6 Oxidation.” 2012. Web. 02 Mar 2021.

Vancouver:

Abedi A. The Effect of an Axial Catalyst Distribution on the Performance of a Diesel Oxidation Catalyst and Inverse Hysteresis Phenomena during CO and C3H6 Oxidation. [Internet] [Thesis]. University of Waterloo; 2012. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10012/6996.

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

Council of Science Editors:

Abedi A. The Effect of an Axial Catalyst Distribution on the Performance of a Diesel Oxidation Catalyst and Inverse Hysteresis Phenomena during CO and C3H6 Oxidation. [Thesis]. University of Waterloo; 2012. Available from: http://hdl.handle.net/10012/6996

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

University of South Australia

15. Saghafifar, Mahmoud. Magnetic hysteresis modelling using knowledge based engineering techniques.

Degree: 2004, University of South Australia

URL: http://arrow.unisa.edu.au:8081/1959.8/24959 ; http://arrow.unisa.edu.au/vital/access/manager/Repository/unisa:24959

►

Magnetic hysteresis modelling plays a crucial role in determining the electromagnetic properties of soft magnetic materials. A new approach to modelling is the use of… (more)

Subjects/Keywords: Hysteresis; Magnetism; Hysteresis loop

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

APA (6^th Edition):

Saghafifar, M. (2004). Magnetic hysteresis modelling using knowledge based engineering techniques. (Thesis). University of South Australia. Retrieved from http://arrow.unisa.edu.au:8081/1959.8/24959 ; http://arrow.unisa.edu.au/vital/access/manager/Repository/unisa:24959

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):

Saghafifar, Mahmoud. “Magnetic hysteresis modelling using knowledge based engineering techniques.” 2004. Thesis, University of South Australia. Accessed March 02, 2021. http://arrow.unisa.edu.au:8081/1959.8/24959 ; http://arrow.unisa.edu.au/vital/access/manager/Repository/unisa:24959.

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

MLA Handbook (7^th Edition):

Saghafifar, Mahmoud. “Magnetic hysteresis modelling using knowledge based engineering techniques.” 2004. Web. 02 Mar 2021.

Vancouver:

Saghafifar M. Magnetic hysteresis modelling using knowledge based engineering techniques. [Internet] [Thesis]. University of South Australia; 2004. [cited 2021 Mar 02]. Available from: http://arrow.unisa.edu.au:8081/1959.8/24959 ; http://arrow.unisa.edu.au/vital/access/manager/Repository/unisa:24959.

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

Council of Science Editors:

Saghafifar M. Magnetic hysteresis modelling using knowledge based engineering techniques. [Thesis]. University of South Australia; 2004. Available from: http://arrow.unisa.edu.au:8081/1959.8/24959 ; http://arrow.unisa.edu.au/vital/access/manager/Repository/unisa:24959

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

Washington State University

16. [No author]. Development of hysteresis analysis as a model-independent approach to assess temporal dissociation in pharmacokinetics and pharmacodynamics .

Degree: 2016, Washington State University

URL: http://hdl.handle.net/2376/12054

► Pharmacodynamic hysteresis is a loop, typically anti-clockwise, in the effect-concentration profile, resulting from temporal dissociation between elaboration of effect and changes in drug concentration. Hysteresis… (more)

▼ Pharmacodynamic hysteresis is a loop, typically anti-clockwise, in the effect-concentration profile, resulting from temporal dissociation between elaboration of effect and changes in drug concentration. Hysteresis behavior impairs recovery of reliable numerical estimates of pharmacodynamic parameters. Existing methods for analyzing data with a hysteresis have focused on integrated pharmacokinetic-pharmacodynamic modeling, which is based on hypothetical constructs and unverifiable assumptions. The work presented herein was aimed at developing and evaluating model-independent metrics to quantify time delays in pharmacokinetic/pharmacodynamic systems. Relationships between various descriptors of hysteresis morphology and parameters associated with distributional (pharmacokinetic) or effect (pharmacodynamic) delays were explored in silico. The ratio of x- versus y-coordinate of the hysteresis centroid was identified through simulation studies as the most useful descriptor in characterizing pharmacokinetic delays. Utility of this metric was demonstrated with mined data examining distribution of methotrexate into human brain, and indicated that hysteresis analysis can provide robust and sensitive results when traditional parametric approaches fail. The utility of hysteresis analysis in pharmacodynamic experiments was examined with simulated data generated from a multiplicity of commonly-encountered pharmacokinetic-pharmacodynamic systems, including systems with delayed distribution to the receptor target (effect-compartment systems) and delayed elaboration of effect after binding of the drug to the target (indirect response systems). In addition, the influence of the shape of the effect-versus concentration relationship (linear, hyperbolic, or sigmoidal) on hysteresis analysis was explored. Results of these experiments indicated that hysteresis analysis is most useful when the effect-concentration relationship is linear. Consistent with observations for nonlinear pharmacokinetic systems, nonlinearities in the effect-concentration profile resulted in nonlinear relationships between hysteresis descriptors and model parameters, with a consequent loss in analytical sensitivity and specificity. Results obtained with simulated data were confirmed with data mined from 12 published reports. Taken together, the results of this project indicate that the hysteresis centroid provides information useful in quantifying delays in pharmacokinetic/pharmacodynamic systems without need for underlying assumptions. In particular, the centroid is useful for hypotheses-testing, rather than descriptive, purposes. As with non-compartmental approaches for pharmacokinetic analysis based on statistical moment theory, hysteresis analysis appears to be useful only for linear systems. Advisors/Committee Members: Pollack, Gary M (advisor).

Subjects/Keywords: Pharmaceutical sciences; Hysteresis analysis; Hysteresis descriptors; temporal delay

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

APA (6^th Edition):

author], [. (2016). Development of hysteresis analysis as a model-independent approach to assess temporal dissociation in pharmacokinetics and pharmacodynamics . (Thesis). Washington State University. Retrieved from http://hdl.handle.net/2376/12054

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):

author], [No. “Development of hysteresis analysis as a model-independent approach to assess temporal dissociation in pharmacokinetics and pharmacodynamics .” 2016. Thesis, Washington State University. Accessed March 02, 2021. http://hdl.handle.net/2376/12054.

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

MLA Handbook (7^th Edition):

author], [No. “Development of hysteresis analysis as a model-independent approach to assess temporal dissociation in pharmacokinetics and pharmacodynamics .” 2016. Web. 02 Mar 2021.

Vancouver:

author] [. Development of hysteresis analysis as a model-independent approach to assess temporal dissociation in pharmacokinetics and pharmacodynamics . [Internet] [Thesis]. Washington State University; 2016. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/2376/12054.

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

Council of Science Editors:

author] [. Development of hysteresis analysis as a model-independent approach to assess temporal dissociation in pharmacokinetics and pharmacodynamics . [Thesis]. Washington State University; 2016. Available from: http://hdl.handle.net/2376/12054

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

NSYSU

17. Liao, Po-Hsuan. Study of Electro-optical Effects in Polymer Stabilized Blue-Phase Liquid Crystal displays.

Degree: Master, Electro-Optical Engineering, 2012, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0726112-021734

► In previous studies, I learned the curing of the electro-optical effects in polymer stabilize blue phase liquid crystal under different temperature, such as the hysteresis… (more)

▼ In previous studies, I learned the curing of the electro-optical effects in polymer stabilize blue phase liquid crystal under different temperature, such as the hysteresis effect, residual transmittance, drive voltage. So find out before curing blue phase temperature range is very important. Since previous studies have used methods is polarizing microscope and measuring reflectance spectra. In order to the blue phase be used in the display. If we use of Bragg reflectors in the visible blue phase liquid crystal. Resulting in the dark state is not good, the contrast reduction, so we must use the blue phase liquid crystal reflectance spectra in the non-visible light. But this liquid crystal cannot use the previously described methods to define the blue phase liquid crystal temperature range. In our experiment, we use different ways to recognized liquid crystal. We have used polarizing microscope, DSC, Kossel diagram and measuring reflectance spectra. We cannot see blue phase by polarizing microscope and Kossel diagram because the blue phase liquid crystal reflectance spectra in the non-visible light. The liquid crystal material absorbs the UV light. Our DSC resolution is not enough to found the blue phase temperature range. When we recognized liquid crystal, we found the light run through the liquid crystal box. In different phase have different lateral scattering intensity. When we cooling temperature can found the lateral scattering intensity is weak in isotropic. When we phase enter the blue phase II, the lateral scattering intensity rise slowly. When the blue phase II into the blue phase I, we can see first decreased and then increased curve. Last when into the cholesterol phase, the lateral scattering intensity rises quickly. We observe this property can discriminate the blue phase temperature range. When we found the blue phase temperature range, we analyze the hysteresis and drive voltage in different curing temperature. We found this material property. When we curing in high temperature. The drive voltage has decrease, but the hysteresis has increase. When curing in low temperature. The drive voltage has increase, but the hysteresis has decrease. Last we use SEM analyze the polymer structure. But we lost the slight polymer structure when we wash the liquid crystal. So we cannot analyze the slight polymer structure. Advisors/Committee Members: Andy Ying-Guey Fun (chair), Shie-Chang Jeng (chair), Wen-Jun Zheng (chair), Wei Lee (chair), Tsung-Hsien Lin (committee member).

Subjects/Keywords: hysteresis; blue phase; monomer; drive voltage

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

APA (6^th Edition):

Liao, P. (2012). Study of Electro-optical Effects in Polymer Stabilized Blue-Phase Liquid Crystal displays. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0726112-021734

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):

Liao, Po-Hsuan. “Study of Electro-optical Effects in Polymer Stabilized Blue-Phase Liquid Crystal displays.” 2012. Thesis, NSYSU. Accessed March 02, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0726112-021734.

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

MLA Handbook (7^th Edition):

Liao, Po-Hsuan. “Study of Electro-optical Effects in Polymer Stabilized Blue-Phase Liquid Crystal displays.” 2012. Web. 02 Mar 2021.

Vancouver:

Liao P. Study of Electro-optical Effects in Polymer Stabilized Blue-Phase Liquid Crystal displays. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Mar 02]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0726112-021734.

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

Council of Science Editors:

Liao P. Study of Electro-optical Effects in Polymer Stabilized Blue-Phase Liquid Crystal displays. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0726112-021734

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

NSYSU

18. Guo, Jin-Yu. The Analysis of Transformer to Ferroresonance with Hysteresis.

Degree: Master, Electrical Engineering, 2004, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0217104-152503

► It can not always be expected that ferroresonance happens.The ferroresonance is rarely seen on the nonlinear resonance of the power system. If the resonance is… (more)

Subjects/Keywords: overvoltage; ferroresonance; hysteresis

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

APA (6^th Edition):

Guo, J. (2004). The Analysis of Transformer to Ferroresonance with Hysteresis. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0217104-152503

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):

Guo, Jin-Yu. “The Analysis of Transformer to Ferroresonance with Hysteresis.” 2004. Thesis, NSYSU. Accessed March 02, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0217104-152503.

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

MLA Handbook (7^th Edition):

Guo, Jin-Yu. “The Analysis of Transformer to Ferroresonance with Hysteresis.” 2004. Web. 02 Mar 2021.

Vancouver:

Guo J. The Analysis of Transformer to Ferroresonance with Hysteresis. [Internet] [Thesis]. NSYSU; 2004. [cited 2021 Mar 02]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0217104-152503.

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

Council of Science Editors:

Guo J. The Analysis of Transformer to Ferroresonance with Hysteresis. [Thesis]. NSYSU; 2004. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0217104-152503

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

NSYSU

19. Chen, Bo-han. Hysteresis in Unemploymentï¼The Empirical Evidences of the frequent trading Countries with Taiwan.

Degree: Master, Economics, 2012, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0625112-144837

► ããThis paper uses the unemployment rate in quarterly data from 1987 to 2011, empirical exploration whether unemployment rate of with Taiwanâs frequent trading countries has… (more)

Subjects/Keywords: hysteresis effect; ILT test; unemployment rate

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APA (6^th Edition):

Chen, B. (2012). Hysteresis in Unemploymentï¼The Empirical Evidences of the frequent trading Countries with Taiwan. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0625112-144837

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):

Chen, Bo-han. “Hysteresis in Unemploymentï¼The Empirical Evidences of the frequent trading Countries with Taiwan.” 2012. Thesis, NSYSU. Accessed March 02, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0625112-144837.

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

MLA Handbook (7^th Edition):

Chen, Bo-han. “Hysteresis in Unemploymentï¼The Empirical Evidences of the frequent trading Countries with Taiwan.” 2012. Web. 02 Mar 2021.

Vancouver:

Chen B. Hysteresis in Unemploymentï¼The Empirical Evidences of the frequent trading Countries with Taiwan. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Mar 02]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0625112-144837.

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

Council of Science Editors:

Chen B. Hysteresis in Unemploymentï¼The Empirical Evidences of the frequent trading Countries with Taiwan. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0625112-144837

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

Ryerson University

20. Chan, Che-Hang Cliff. Actuator hysteresis modeling and compensation with an adaptive search space based genetic algorithm.

Degree: 2003, Ryerson University

URL: https://digital.library.ryerson.ca/islandora/object/RULA%3A478

► The thesis presents a Genetic Algorithm with Adaptive Search Space (GAASS) proposed to improve both convergence performance and solution accuracy of traditional Genetic Algorithms(GAs). The… (more)

Subjects/Keywords: Genetic algorithms; Hysteresis

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APA (6^th Edition):

Chan, C. C. (2003). Actuator hysteresis modeling and compensation with an adaptive search space based genetic algorithm. (Thesis). Ryerson University. Retrieved from https://digital.library.ryerson.ca/islandora/object/RULA%3A478

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):

Chan, Che-Hang Cliff. “Actuator hysteresis modeling and compensation with an adaptive search space based genetic algorithm.” 2003. Thesis, Ryerson University. Accessed March 02, 2021. https://digital.library.ryerson.ca/islandora/object/RULA%3A478.

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

MLA Handbook (7^th Edition):

Chan, Che-Hang Cliff. “Actuator hysteresis modeling and compensation with an adaptive search space based genetic algorithm.” 2003. Web. 02 Mar 2021.

Vancouver:

Chan CC. Actuator hysteresis modeling and compensation with an adaptive search space based genetic algorithm. [Internet] [Thesis]. Ryerson University; 2003. [cited 2021 Mar 02]. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A478.

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

Council of Science Editors:

Chan CC. Actuator hysteresis modeling and compensation with an adaptive search space based genetic algorithm. [Thesis]. Ryerson University; 2003. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A478

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

Rochester Institute of Technology

21. Rath, Cody. Investigation of the effect of geometry and surface properties on water buildup in pem fuel cell gas channel corners.

Degree: Mechanical Engineering, 2011, Rochester Institute of Technology

URL: https://scholarworks.rit.edu/theses/5879

► Over the past few decades, polymer electrolyte membrane (PEM) fuel cells have been gaining increased attention as a possible replacement for the internal combustion engine.… (more)

▼ Over the past few decades, polymer electrolyte membrane (PEM) fuel cells have been gaining increased attention as a possible replacement for the internal combustion engine. Fuel cell vehicles are an attractive alternative because of the fact that they can operate without the use of fossil fuels, are more efficient than internal combustion vehicles, and have no harmful emissions with the only byproducts being heat and pure water. Managing this water has been shown to be a key area of research. In order for fuel cells to operate properly, there must be a certain level of hydration present in the membrane; however, too much water can cause the cell to flood, which reduces access of reactants to the reaction sites and consequently the amount of electrochemical reactions. These effects cause a decrease in the overall efficiency and performance of the cell. One specific area of interest that has gained attention recently is the buildup of water in the reactant gas channels. Several works have focused on droplet channel interactions, however many only investigate the droplet growth process, or just the interaction between the droplet and the air cross flow. Few works have investigated the interaction between the growing droplet when it is exposed to a base and channel side which typically have differing surface energies. This issue is addressed in this work at a fundamental level by investigating droplet formation and accumulation in a corner. The work presented here utilizes an ex situ experimental approach that visualizes the dynamics of a water droplet as it emerges from a fibrous material and interacts with a solid side wall surface. A test section is designed and used to characterize the movement of the droplet interfaces as a function of geometry, surface energy, i.e. contact angle, and surface roughness. The governing principle behind the design of this setup is the Concus - Finn Condition and it is proposed here that this condition can be used as a tool for designing channels with improved water management. It has been determined that the local contact angle is a critical parameter when analyzing the behavior of a growing droplet on the surface of a fibrous material as it interacts with the channel side wall. Also, local contact angle values were found to exceed the previously measured contact angles for the surfaces due to the severely strained interface of the droplet over the porous structure. The Concus-Finn condition can be successfully used to determine the behavior of a droplet in a corner based on the local contact angle. A force balance analysis is used to support this finding and to determine the driving forces that cause the droplet behavior. Advisors/Committee Members: Kandlikar, Satish.

Subjects/Keywords: Concus-finn condition; Contact angle hysteresis; PEMFC

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

APA (6^th Edition):

Rath, C. (2011). Investigation of the effect of geometry and surface properties on water buildup in pem fuel cell gas channel corners. (Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/5879

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):

Rath, Cody. “Investigation of the effect of geometry and surface properties on water buildup in pem fuel cell gas channel corners.” 2011. Thesis, Rochester Institute of Technology. Accessed March 02, 2021. https://scholarworks.rit.edu/theses/5879.

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

MLA Handbook (7^th Edition):

Rath, Cody. “Investigation of the effect of geometry and surface properties on water buildup in pem fuel cell gas channel corners.” 2011. Web. 02 Mar 2021.

Vancouver:

Rath C. Investigation of the effect of geometry and surface properties on water buildup in pem fuel cell gas channel corners. [Internet] [Thesis]. Rochester Institute of Technology; 2011. [cited 2021 Mar 02]. Available from: https://scholarworks.rit.edu/theses/5879.

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

Council of Science Editors:

Rath C. Investigation of the effect of geometry and surface properties on water buildup in pem fuel cell gas channel corners. [Thesis]. Rochester Institute of Technology; 2011. Available from: https://scholarworks.rit.edu/theses/5879

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

University of Utah

22. Abraham, Jacob Isaac Kalunakaahele. Feasibility study of a natural gas storage prospect reservoir using decline curve and hysteresis analysis.

Degree: MS, Chemical Engineering, 2015, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3557/rec/1021

► Underground natural gas baseload storage facilities are a vital part of the world’s natural gas infrastructure. These facilities allow Exploration & Production (E&P) andtransmission pipeline… (more)

▼ Underground natural gas baseload storage facilities are a vital part of the world’s natural gas infrastructure. These facilities allow Exploration & Production (E&P) andtransmission pipeline companies to utilize natural gas assets year round while providing means for consistent gas supply throughout the year. The purpose of this thesis is to present a process in which a feasibility study can be conducted for a prospective baseload storage facility. This was accomplished by explaining 1) the theory of natural gas storage reservoir engineering; 2) geologic consideration for underground storage prospects; 3) design of a new underground baseload facility using decline curve analysis and hysteresis analysis; and 4) a detailed economic analysis of a storage prospect.A depleted natural gas reservoir was evaluated for its potential to become an underground baseload storage facility for natural gas. For this underground reservoir, it is estimated the Original Gas in Place (OGIP) was 59.4 Billion Cubic Feet (BCF) using hysteresis analysis. The cushion gas requirement was solved to be 50% of the OGIP, or 29.7 BCF. There is currently 7.4 BCF of native gas present in the reservoir. The required injection cushion gas requirement is estimated at 22.3 BCF. The maximum field deliverability was estimated to be 284.3 Thousand Cubic Feet per Day (MCF/D) at a reservoir pressure of 868.5 psia. The minimum field deliverability was estimated to be 83.8 MCF/D at a cushion gas pressure of 434.1 psia. Maximum and minimumdeliverabilities assume 30 injection/withdrawal wells are present at 6 different well pads throughout the field.After analyzing three different economic scenarios for the prospective storage field it was determined this project is not economically feasible under current market conditions.Recommendations for future work include the operating company conducting a 3D seismic survey and re-evaluating the project using 3D reservoir simulation evaluating the possibilities of 1) using horizontal drilling to minimize number of wells, 2) simulate storage well performance if vertical wells are hydraulically fractured, and/or 3) simulate if the prospective storage facility can be pressurized over the original discovery pressure.

Subjects/Keywords: Decline; Deliverability; Engineering; Hysteresis; Reservoir; Storage

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APA (6^th Edition):

Abraham, J. I. K. (2015). Feasibility study of a natural gas storage prospect reservoir using decline curve and hysteresis analysis. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3557/rec/1021

Chicago Manual of Style (16^th Edition):

Abraham, Jacob Isaac Kalunakaahele. “Feasibility study of a natural gas storage prospect reservoir using decline curve and hysteresis analysis.” 2015. Masters Thesis, University of Utah. Accessed March 02, 2021. http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3557/rec/1021.

MLA Handbook (7^th Edition):

Abraham, Jacob Isaac Kalunakaahele. “Feasibility study of a natural gas storage prospect reservoir using decline curve and hysteresis analysis.” 2015. Web. 02 Mar 2021.

Vancouver:

Abraham JIK. Feasibility study of a natural gas storage prospect reservoir using decline curve and hysteresis analysis. [Internet] [Masters thesis]. University of Utah; 2015. [cited 2021 Mar 02]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3557/rec/1021.

Council of Science Editors:

Abraham JIK. Feasibility study of a natural gas storage prospect reservoir using decline curve and hysteresis analysis. [Masters Thesis]. University of Utah; 2015. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3557/rec/1021

Universidade Federal da Bahia

23. Vilson Almeida Santos. Evidência de histerese na taxa de desemprego do Brasil: uma abordagem com modelos de longa persistência.

Degree: 2006, Universidade Federal da Bahia

URL: http://www.bibliotecadigital.ufba.br/tde_busca/arquivo.php?codArquivo=657

►

Estudos sobre o problema do desemprego na Europa nas décadas de 80 e 90 permitiram evidenciar o que ficou conhecido na literatura como histerese. Este… (more)

▼

Estudos sobre o problema do desemprego na Europa nas décadas de 80 e 90 permitiram evidenciar o que ficou conhecido na literatura como histerese. Este fenômeno propõe que choques exógenos aleatórios provocam desvios da taxa de desemprego de equilíbrio que podem ser permanentes ainda que os efeitos desses choques sejam removidos. Neste trabalho utiliza-se o procedimento paramétrico para estimar o parâmetro d dos modelos ARFIMA (p,d,q). Os resultados indicam que os valores estimados dos coeficientes do parâmetro de integração fracionário convergem, através do processo iterativo, para valores acima da unidade. Algebricamente, estes são os valores dos parâmetros que maximizam a função de verossimilhança estimada. Tais resultados indicam a não estacionariedade do processo gerador dos dados para a série em nível. Isto implica na permanência dos efeitos de inovações não esperadas sobre a série, nos permitindo evidenciar a presença de histerese na taxa de desemprego do Brasil sob a abordagem dos modelos ARFIMA.

Studies on the problem of the unemployment in the Europe in the decades of 80 and 90 had allowed to evidence what he was known in literature as hysteresis. This phenomenon considers that random exógenos shocks provoke shunting lines of the tax of balance unemployment that can be permanent despite the effect of these shocks are removed. In this work the parametric procedure is used esteem parameter d of models ARFIMA (p, d, q). The results indicate that the esteem values of the coefficients of the fractionary parameter of integration converge, through the iterative process, for values above of the unit. Algebraic, these are the values of the parameters that maximize the function of esteem likelyhood. Such results indicate not the estacionariedade of the process generated of the data for the series in level. This implies in the permanence of the effect of innovations not waited on the series, in allowing to evidence the presence of hysteresis in the tax of unemployment of Brazil under the boarding of models ARFIMA.

Advisors/Committee Members: Carlos Alberto Gentil Marques, Sinézio Fernandes Maia, Antônio Wilson Ferreira Menezes.

Subjects/Keywords: Brasil; histerese; unemployment; Brazil; hysteresis; ECONOMIA; desemprego

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APA (6^th Edition):

Santos, V. A. (2006). Evidência de histerese na taxa de desemprego do Brasil: uma abordagem com modelos de longa persistência. (Thesis). Universidade Federal da Bahia. Retrieved from http://www.bibliotecadigital.ufba.br/tde_busca/arquivo.php?codArquivo=657

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):

Santos, Vilson Almeida. “Evidência de histerese na taxa de desemprego do Brasil: uma abordagem com modelos de longa persistência.” 2006. Thesis, Universidade Federal da Bahia. Accessed March 02, 2021. http://www.bibliotecadigital.ufba.br/tde_busca/arquivo.php?codArquivo=657.

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

MLA Handbook (7^th Edition):

Santos, Vilson Almeida. “Evidência de histerese na taxa de desemprego do Brasil: uma abordagem com modelos de longa persistência.” 2006. Web. 02 Mar 2021.

Vancouver:

Santos VA. Evidência de histerese na taxa de desemprego do Brasil: uma abordagem com modelos de longa persistência. [Internet] [Thesis]. Universidade Federal da Bahia; 2006. [cited 2021 Mar 02]. Available from: http://www.bibliotecadigital.ufba.br/tde_busca/arquivo.php?codArquivo=657.

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

Council of Science Editors:

Santos VA. Evidência de histerese na taxa de desemprego do Brasil: uma abordagem com modelos de longa persistência. [Thesis]. Universidade Federal da Bahia; 2006. Available from: http://www.bibliotecadigital.ufba.br/tde_busca/arquivo.php?codArquivo=657

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

Texas A&M University

24. Franco, Brian Eelan. Engineering the Martensitic Transformation Hysteresis of Ni-Rich NiTi Alloys.

Degree: MS, Mechanical Engineering, 2014, Texas A&M University

URL: http://hdl.handle.net/1969.1/153807

► The shape memory behavior in NiTi alloys can be exploited for a wide variety of applications that require active materials. The application dictates the transformation… (more)

Subjects/Keywords: Shape memory; NiTi; Precipitation; Aging treatments; hysteresis

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APA (6^th Edition):

Franco, B. E. (2014). Engineering the Martensitic Transformation Hysteresis of Ni-Rich NiTi Alloys. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/153807

Chicago Manual of Style (16^th Edition):

Franco, Brian Eelan. “Engineering the Martensitic Transformation Hysteresis of Ni-Rich NiTi Alloys.” 2014. Masters Thesis, Texas A&M University. Accessed March 02, 2021. http://hdl.handle.net/1969.1/153807.

MLA Handbook (7^th Edition):

Franco, Brian Eelan. “Engineering the Martensitic Transformation Hysteresis of Ni-Rich NiTi Alloys.” 2014. Web. 02 Mar 2021.

Vancouver:

Franco BE. Engineering the Martensitic Transformation Hysteresis of Ni-Rich NiTi Alloys. [Internet] [Masters thesis]. Texas A&M University; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/1969.1/153807.

Council of Science Editors:

Franco BE. Engineering the Martensitic Transformation Hysteresis of Ni-Rich NiTi Alloys. [Masters Thesis]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/153807

University of Johannesburg

25. Bothma, Paul Ronald. Die optimering van die ontwerp en die elektroniese kommutasie van 'n histeresemasjien vir hoë rotasiesnelhede.

Degree: 2014, University of Johannesburg

URL: http://hdl.handle.net/10210/11172

►

M.Ing. (Electrical & Electronic Engineering Science)

This dissertation deals with the design and implementation of a hysteresis machine for high-speed applications. A model is introduced… (more)

Subjects/Keywords: Electric motors; Hysteresis - Design and construction

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APA (6^th Edition):

Bothma, P. R. (2014). Die optimering van die ontwerp en die elektroniese kommutasie van 'n histeresemasjien vir hoë rotasiesnelhede. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/11172

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):

Bothma, Paul Ronald. “Die optimering van die ontwerp en die elektroniese kommutasie van 'n histeresemasjien vir hoë rotasiesnelhede.” 2014. Thesis, University of Johannesburg. Accessed March 02, 2021. http://hdl.handle.net/10210/11172.

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

MLA Handbook (7^th Edition):

Bothma, Paul Ronald. “Die optimering van die ontwerp en die elektroniese kommutasie van 'n histeresemasjien vir hoë rotasiesnelhede.” 2014. Web. 02 Mar 2021.

Vancouver:

Bothma PR. Die optimering van die ontwerp en die elektroniese kommutasie van 'n histeresemasjien vir hoë rotasiesnelhede. [Internet] [Thesis]. University of Johannesburg; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10210/11172.

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

Council of Science Editors:

Bothma PR. Die optimering van die ontwerp en die elektroniese kommutasie van 'n histeresemasjien vir hoë rotasiesnelhede. [Thesis]. University of Johannesburg; 2014. Available from: http://hdl.handle.net/10210/11172

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

Australian National University

26. Wu, Yiliang. Towards Highly Efficient Perovskite/c-Si Monolithic Tandem Solar Cells .

Degree: 2018, Australian National University

URL: http://hdl.handle.net/1885/162745

► Solar photovoltaic technology based on crystalline silicon (c-Si) has dramatically reduced in cost in the last several years, to the point where the cost of… (more)

▼ Solar photovoltaic technology based on crystalline silicon (c-Si) has dramatically reduced in cost in the last several years, to the point where the cost of solar electricity now rivals that from coal power plants in many locations around the world. Increasing the power conversion efficiency is the most promising method to further reduce the cost. Since the efficiency of c-Si cells is approaching its theoretical limit, alternative approaches are required to enable step changes in efficiency. The rapid development of perovskite cells provides an opportunity to fabricate highly efficient perovskite/c-Si tandem cells, with an efficiency substantially greater than that possible with c-Si. One potential difficulty to achieve a highly efficient perovskite top cell for such a tandem device is the hysteresis behaviour usually displayed by these cells. It is necessary to understand the root causes of hysteresis in order to assess whether and to what extent the underlying mechanisms responsible will limit the efficiency or stability of the cells. We show for the first time, that the transient changes in terminal voltage and luminescent intensity do not follow the relationship that would be predicted by the generalised Planck radiation law. Using numerical simulation, we demonstrate that due to the accumulation of mobile ions at interfaces and together with significant defect related interface recombination, a resistive barrier to majority carrier flow at the interfaces between the perovskite film and the electron or hole transport layer can result in decoupling of the internal quasi-Fermi level separation and the externally measured voltage. Additional to the perovskite work, we report a specially designed homojunction c-Si solar cell architecture which provides a wide window for the perovskite top cell processing temperature of up to 400 °C, and which features passivation on both sides of the c-Si substrate using conventional, industry standard homojunction (diffused junction) technology. With a modified vacuum flash assisted perovskite deposition method, we demonstrate a 1 cm2 monolithic perovskite/c-Si tandem cell with 22.5% stabilized efficiency, which is the highest efficiency reported to date with a homojunction c-Si substrate. The unique design presented in this work opens up a new approach for achieving highly efficient monolithic perovskite/c-Si tandem devices. In the final work, we carefully investigate the monolithic tandems based on HJT (heterojunction technology) and PERT (passivated emitter rear totally diffused) structures recently published. Based on the simulation results, for both structures, we show that a significant increase in efficiency can be achieved by simply reducing the resistivity of the c-Si wafer and changing the wafer from n-type to p-type without changing…

Subjects/Keywords: perovskite; silicon; tandem; hysteresis; solar cell

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APA (6^th Edition):

Wu, Y. (2018). Towards Highly Efficient Perovskite/c-Si Monolithic Tandem Solar Cells . (Thesis). Australian National University. Retrieved from http://hdl.handle.net/1885/162745

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):

Wu, Yiliang. “Towards Highly Efficient Perovskite/c-Si Monolithic Tandem Solar Cells .” 2018. Thesis, Australian National University. Accessed March 02, 2021. http://hdl.handle.net/1885/162745.

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

MLA Handbook (7^th Edition):

Wu, Yiliang. “Towards Highly Efficient Perovskite/c-Si Monolithic Tandem Solar Cells .” 2018. Web. 02 Mar 2021.

Vancouver:

Wu Y. Towards Highly Efficient Perovskite/c-Si Monolithic Tandem Solar Cells . [Internet] [Thesis]. Australian National University; 2018. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/1885/162745.

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

Council of Science Editors:

Wu Y. Towards Highly Efficient Perovskite/c-Si Monolithic Tandem Solar Cells . [Thesis]. Australian National University; 2018. Available from: http://hdl.handle.net/1885/162745

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

Colorado State University

27. Huber, David P. Re-evaluating effects of water quality changes on soil hydraulic properties.

Degree: MS(M.S.), Soil and Crop Sciences, 2011, Colorado State University

URL: http://hdl.handle.net/10217/51797

► Elevated soil salinity has long been an agricultural concern, causing reductions in infiltration and crop yields, and in extreme cases loss of agricultural land. This… (more)

▼ Elevated soil salinity has long been an agricultural concern, causing reductions in infiltration and crop yields, and in extreme cases loss of agricultural land. This study reexamines how salinity affects soil hydraulic properties in order to address deficiencies in prediction methods and management of salinity's impacts on soils. This research project explores the effects of both changing irrigation water electrical conductivity (EC) and sodium adsorption ratio (SAR) on soil hydraulic conductivity, K, and soil moisture retention, θ, over a range of soil water tensions. The Results show that a decrease in EC from 20 to 0.25 dS m-1, with SAR held constant at low to moderate levels, causes changes in K(θ) only after dropping below 1.5 dS m-1 for soils at this particular site. The initial K(θ) could not be recovered by increasing the EC to its original level, indicating that irreversible clay dispersion had taken place. Increasing SAR from approximately 4 to 25 with EC held at 0.5 dS m-1 caused slight reductions in K(θ). In contrast to the EC treatment, K(θ) partially recovered after the SAR was reduced to its initial condition. The mechanism for the SAR effect is clay swelling and is reversible with changing soil water chemistry. The results from both EC and SAR treatments are consistent with other research reports. However, in contrast to previous studies and of particular interest is the magnitude of change in K with changing EC or SAR and decreasing θ. Unlike current models that assume the decline in K due to solution chemistry is constant over the entire K(θ) range, equal to the change at Ksat, this study observes an exponential increase in the solution chemistry's effect on K with decreasing θ. These findings suggest that current models that ignore solution chemistry, or models that assume a constant K reduction for the entire K(θ) function, are over-estimating the drainage in these systems. Adoption of a more characteristic solution chemistry model, similar to the one presented here, could help better manage irrigation water quality, reduce salt accumulation, and improve crop yields. Advisors/Committee Members: Butters, Greg (advisor), Garcia, Luis (advisor), Barbarick, Kenneth (committee member).

Subjects/Keywords: soil; Colorado; hydrology; hysteresis; modelling; salinity

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APA (6^th Edition):

Huber, D. P. (2011). Re-evaluating effects of water quality changes on soil hydraulic properties. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/51797

Chicago Manual of Style (16^th Edition):

Huber, David P. “Re-evaluating effects of water quality changes on soil hydraulic properties.” 2011. Masters Thesis, Colorado State University. Accessed March 02, 2021. http://hdl.handle.net/10217/51797.

MLA Handbook (7^th Edition):

Huber, David P. “Re-evaluating effects of water quality changes on soil hydraulic properties.” 2011. Web. 02 Mar 2021.

Vancouver:

Huber DP. Re-evaluating effects of water quality changes on soil hydraulic properties. [Internet] [Masters thesis]. Colorado State University; 2011. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10217/51797.

Council of Science Editors:

Huber DP. Re-evaluating effects of water quality changes on soil hydraulic properties. [Masters Thesis]. Colorado State University; 2011. Available from: http://hdl.handle.net/10217/51797

University of Otago

28. McKellar, James Lawrence Oreti. Thermal Hysteresis Proteins in Tenebrio molitor Larvae .

Degree: 2013, University of Otago

URL: http://hdl.handle.net/10523/4363

► Adaptation to cooler climates is a necessity for the organisms which endure temperatures below freezing. The yellow mealworm beetle, Tenebrio molitor, overwinters in the larval… (more)

Subjects/Keywords: Thermal Hysteresis Proteins; Freeze Tolerance; Tenebrio molitor

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APA (6^th Edition):

McKellar, J. L. O. (2013). Thermal Hysteresis Proteins in Tenebrio molitor Larvae . (Masters Thesis). University of Otago. Retrieved from http://hdl.handle.net/10523/4363

Chicago Manual of Style (16^th Edition):

McKellar, James Lawrence Oreti. “Thermal Hysteresis Proteins in Tenebrio molitor Larvae .” 2013. Masters Thesis, University of Otago. Accessed March 02, 2021. http://hdl.handle.net/10523/4363.

MLA Handbook (7^th Edition):

McKellar, James Lawrence Oreti. “Thermal Hysteresis Proteins in Tenebrio molitor Larvae .” 2013. Web. 02 Mar 2021.

Vancouver:

McKellar JLO. Thermal Hysteresis Proteins in Tenebrio molitor Larvae . [Internet] [Masters thesis]. University of Otago; 2013. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10523/4363.

Council of Science Editors:

McKellar JLO. Thermal Hysteresis Proteins in Tenebrio molitor Larvae . [Masters Thesis]. University of Otago; 2013. Available from: http://hdl.handle.net/10523/4363

University of Manitoba

29. Fang, Chun. Improved inverse Jiles-Atherton hysteresis model for investigating controlled switching of three-phase five-limb parallel-operated HVDC converter transformers.

Degree: Electrical and Computer Engineering, 2017, University of Manitoba

URL: http://hdl.handle.net/1993/32339

► Ferromagnetic characteristics and magnetic coupling are two crucial aspects when investigating controlled switching transient phenomenon of three-phase five-limb power transformers. Classic Jiles-Atherton (J-A) hysteresis model… (more)

Subjects/Keywords: Jiles-Atherton; Hysteresis; Controlled switching; HVDC; PSO

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APA (6^th Edition):

Fang, C. (2017). Improved inverse Jiles-Atherton hysteresis model for investigating controlled switching of three-phase five-limb parallel-operated HVDC converter transformers. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/32339

Chicago Manual of Style (16^th Edition):

Fang, Chun. “Improved inverse Jiles-Atherton hysteresis model for investigating controlled switching of three-phase five-limb parallel-operated HVDC converter transformers.” 2017. Masters Thesis, University of Manitoba. Accessed March 02, 2021. http://hdl.handle.net/1993/32339.

MLA Handbook (7^th Edition):

Fang, Chun. “Improved inverse Jiles-Atherton hysteresis model for investigating controlled switching of three-phase five-limb parallel-operated HVDC converter transformers.” 2017. Web. 02 Mar 2021.

Vancouver:

Fang C. Improved inverse Jiles-Atherton hysteresis model for investigating controlled switching of three-phase five-limb parallel-operated HVDC converter transformers. [Internet] [Masters thesis]. University of Manitoba; 2017. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/1993/32339.

Council of Science Editors:

Fang C. Improved inverse Jiles-Atherton hysteresis model for investigating controlled switching of three-phase five-limb parallel-operated HVDC converter transformers. [Masters Thesis]. University of Manitoba; 2017. Available from: http://hdl.handle.net/1993/32339

Delft University of Technology

30. Baas, Olivier (author). Nonlinear behaviour of ferromagnetic steel.

Degree: 2018, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:dc977bf0-8154-43ca-abe1-5160c7877ff2

► In order to monitor elliptical fatigue crack growth in ferromagnetic steel using magnetic methods, analternative to the self magnetic flux leakage method must be derived… (more)

▼ In order to monitor elliptical fatigue crack growth in ferromagnetic steel using magnetic methods, analternative to the self magnetic flux leakage method must be derived as elliptical cracks can grow to significant sizes before they reach through the thickness of the plate material. An approach is sought by translating subtle changes in magnetisation back to the Villari effect, a phenomenon which depicts how applied stress induces changes in magnetisation in ferromagnetic objects. Since the magnitude of these changes in magnetisation is small, other nonlinear effects of similar order such as magnetic relaxation and hysteresis are identified, measured and quantified preliminarily. The magnetic behaviour in this project is assumed to be quasi-static, and derivations of the expressions for the magnetic field around simple geometric shapes are provided in order to understand magnetic behaviour and verify the outcome of the numerical simulations. It is shown that the numerical simulations produce identical magnetostatic induction fields as the analytically derived expressions when using a sufficiently refined mesh. An attempt is made to measure long-term magnetic relaxation by subjecting a solid prolate spheroid to a continuous uniform background field for periods of an hour while trying to measure differences in the induction field at a fixed distance. Short-term relaxation, the time it takes for an object to reach a certain magnetisation when the background field is abruptly changed, is also investigated. It is concluded that both effects could not be successfully measured using the current setup. In order to draw proper conclusions, further research into this topic should be conducted using more accurate equipment for extended periods of time. Upon investigation it is discovered that it can not be assumed that the steel specimens exhibit a uniform permanent magnetisation. A self-developed method is introduced through which non-uniform magnetisation in three directions can be calculated by means of inversion using a set of magnetic induction field measurements in a plane below the specimen when the background field is zero. These measurements are translated to magnetisation using a set of higher order square Gaussian distribution functions that are spaced in a grid over the domain of the test specimen in order to vary the magnetisation locally. Literature that shows comparable results regarding description of non-uniform permanent magnetisation using an array of induction field measurements has not been found. The concept of hysteresis is introduced and a method is presented through which the parameters of the Jiles-Atherton hysteresis model can be determined using parameter fitting in combination with a forward numerical model created in COMSOL. Closure of minor loops require modifications to the original JA equations which are implemented in the forward model. The numerical model is encapsulated within the Shuffled Leaping Frog parameter optimisation algorithm in order to… Advisors/Committee Members: Kaminski, Mirek (mentor), van Woerkom, Paul (graduation committee), Keetels, Geert (graduation committee), Pahlavan, Pooria (graduation committee), Vijn, Aad (graduation committee), Lepelaars, E.S.A.M. (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Magnetism; Hysteresis; Villari effect; Crack-propagation

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APA (6^th Edition):

Baas, O. (. (2018). Nonlinear behaviour of ferromagnetic steel. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:dc977bf0-8154-43ca-abe1-5160c7877ff2

Chicago Manual of Style (16^th Edition):

Baas, Olivier (author). “Nonlinear behaviour of ferromagnetic steel.” 2018. Masters Thesis, Delft University of Technology. Accessed March 02, 2021. http://resolver.tudelft.nl/uuid:dc977bf0-8154-43ca-abe1-5160c7877ff2.

MLA Handbook (7^th Edition):

Baas, Olivier (author). “Nonlinear behaviour of ferromagnetic steel.” 2018. Web. 02 Mar 2021.

Vancouver:

Baas O(. Nonlinear behaviour of ferromagnetic steel. [Internet] [Masters thesis]. Delft University of Technology; 2018. [cited 2021 Mar 02]. Available from: http://resolver.tudelft.nl/uuid:dc977bf0-8154-43ca-abe1-5160c7877ff2.

Council of Science Editors:

Baas O(. Nonlinear behaviour of ferromagnetic steel. [Masters Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:dc977bf0-8154-43ca-abe1-5160c7877ff2

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