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Kansas State University
1.
Kuang, Yan.
Modeling and
analysis of competing dynamic ecological systems.
Degree: PhD, Department of Industrial &
Manufacturing Systems Engineering, 2017, Kansas State University
URL: http://hdl.handle.net/2097/35555
► The dynamic relationship between competing ecological systems has long been and will continue to be one of vital topics in both ecology and mathematical ecology…
(more)
▼ The dynamic relationship between competing ecological
systems has long been and will continue to be one of vital topics
in both ecology and mathematical ecology because of its importance
and universal existence. Mathematical
modeling has become an
effective tool to model and simulate the dynamic system, providing
decision makers with strategy recommendations. Although a great
amount of previous work has attempted to model the biological
mechanisms including dispersal, only rarely has there been a
systematic investigation on different spatial effects.
The author
introduces spatial games as a
modeling approach with different
constructions towards different dynamic systems in order to benefit
from the systematic research on spatial dynamics when studying the
competing ecological systems. This research developed models of two
systems: (1) two-spotted spider mite prey-predator system; (2)
tomato spotted wilt virus (TSWV) and west flower thrips (WFT)
vector-borne disease system.
For two-spotted spider mite system,
the author presented four spatial mathematical models as well as a
novel spatial game model to describe the spatial movement of two
competing species.
For the TSWV-WFT system, a spatial game was
introduced to describe the spatial dynamics of adult thrips and the
novel model was validated with experimental data. The author also
gave suggestions for efficiently controlling the vector-borne
disease by performing sensitivity analysis towards parameters.
The
major contribution of this research is to introduce spatial games
as a tool to describe the dynamic schemes in ecological systems.
Compared to a traditional dynamic model, a spatial game model is
more expressive and informative. This approach uses a payoff
function and a movement probability function that can be adjusted
based on habits, characteristics and mobility schemes of different
competing entities, which has enriched its
modeling power.
The
methodology and
modeling approach used in this dissertation can be
applied to other competing species dynamic systems, and have a
broad impact on research areas related to mathematical ecology,
biology
modeling, epidemiology, pest control, vector-borne disease
control, and ecological decision-making processes.
Advisors/Committee Members: David H. Ben-Arieh.
Subjects/Keywords: Modeling
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APA (6th Edition):
Kuang, Y. (2017). Modeling and
analysis of competing dynamic ecological systems. (Doctoral Dissertation). Kansas State University. Retrieved from http://hdl.handle.net/2097/35555
Chicago Manual of Style (16th Edition):
Kuang, Yan. “Modeling and
analysis of competing dynamic ecological systems.” 2017. Doctoral Dissertation, Kansas State University. Accessed April 12, 2021.
http://hdl.handle.net/2097/35555.
MLA Handbook (7th Edition):
Kuang, Yan. “Modeling and
analysis of competing dynamic ecological systems.” 2017. Web. 12 Apr 2021.
Vancouver:
Kuang Y. Modeling and
analysis of competing dynamic ecological systems. [Internet] [Doctoral dissertation]. Kansas State University; 2017. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/2097/35555.
Council of Science Editors:
Kuang Y. Modeling and
analysis of competing dynamic ecological systems. [Doctoral Dissertation]. Kansas State University; 2017. Available from: http://hdl.handle.net/2097/35555

Colorado State University
2.
Miao, Zhongqi.
Modular modeling and its applications in studies of grazing effects.
Degree: MS(M.S.), Ecology, 2016, Colorado State University
URL: http://hdl.handle.net/10217/176713
► Grazing is an important ecosystem process that can affect the grazing system at different levels. Overall grazing effect can be a combination of various direct…
(more)
▼ Grazing is an important ecosystem process that can affect the grazing system at different levels. Overall grazing effect can be a combination of various direct and indirect effects. It is difficult to study grazing with all of the effects considered. To have a better knowledge of grazing effects and animal-plant interactions,
modeling is one important pathway to achieve this goal. People usually use a diversity of approaches when
modeling grazing based on different objectives, which makes model evaluations and comparisons difficult. With modular
modeling, where different model components are regarded as separate and standardized modules, this situation can be changed. An example model is developed using a modular approach. It included most of the grazing effects and switches that can turn these effects on and off. This model was designed to be capable for applications with different hypothesis and objectives. It is expected to be clearer for people who are not familiar to models to make comparisons and evaluations of grazing effects. To test the feasibility of the model, a theoretical experiment on compensatory behavior in grassland production and a realistic simulation on plant-animal interactions in Qinghai-Tibetan plateau, China, are conducted. The results of these two applications demonstrate the benefits of using modular
modeling in studies of grazing effects.
Advisors/Committee Members: Boone, Randall (advisor), Conant, Richard (committee member), Ocheltree, Troy (committee member).
Subjects/Keywords: modular modeling; ecological modeling; rangeland modeling
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Chicago ·
MLA ·
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Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Miao, Z. (2016). Modular modeling and its applications in studies of grazing effects. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/176713
Chicago Manual of Style (16th Edition):
Miao, Zhongqi. “Modular modeling and its applications in studies of grazing effects.” 2016. Masters Thesis, Colorado State University. Accessed April 12, 2021.
http://hdl.handle.net/10217/176713.
MLA Handbook (7th Edition):
Miao, Zhongqi. “Modular modeling and its applications in studies of grazing effects.” 2016. Web. 12 Apr 2021.
Vancouver:
Miao Z. Modular modeling and its applications in studies of grazing effects. [Internet] [Masters thesis]. Colorado State University; 2016. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/10217/176713.
Council of Science Editors:
Miao Z. Modular modeling and its applications in studies of grazing effects. [Masters Thesis]. Colorado State University; 2016. Available from: http://hdl.handle.net/10217/176713

University of Helsinki
3.
Tang, Hui.
The spatio-temporal evolution of the Asian monsoon climate in the Late Miocene and its causes: A regional climate model study.
Degree: Department of Geosciences and Geography, Division of Geology, 2013, University of Helsinki
URL: http://hdl.handle.net/10138/39411
► Late Miocene (11-5 Ma) is a crucial period for Asian monsoon evolution. Significant changes of both the India and East Asian monsoons in this period…
(more)
▼ Late Miocene (11-5 Ma) is a crucial period for Asian monsoon evolution. Significant changes of both the India and East Asian monsoons in this period have been documented in geological records. In this study, a high-resolution regional climate model COSMO-CLM driven by a fully coupled atmosphere-ocean general circulation model ECHAM5/MPI-OM is employed to investigate the monsoon climate change in the early Late Miocene (i.e. Tortonian) and its mechanisms. Our results suggest a generally weaker (stronger) summer (winter) monsoon circulation over East Asia and India in the Tortonian than today. The monsoon rainfall changes, however, might have exhibited great regional differences. The modern-like monsoonal climate may have existed in southern China and India in the Tortonian, while the monsoonal climate in northern China and northwestern India may have not fully developed at that time.
Sensitivity experiments with different orographic configurations in our regional model shows that different from the effect of the uplift of the entire Asian orography (i.e. bulk mountain uplift) which strengthens both the Indian and East Asian summer monsoons (ISM and EASM), the diachronous growth of different part of the Asian orography (i.e. regional mountain uplift) can lead to an asynchronous development of the ISM and EASM. While the ISM is primarily intensified by the presence of the southern TP (Zagros Mountains) due to its thermal insulation (mechanical blocking) effect, the EASM is mainly strengthened by the presence of the central and northern TP and the Tianshan Mountains owing to their strong diabatic heating effect. Such effects offer explanations to the asynchronous development of the ISM and EASM during the Middle Miocene (15 Ma), the Late Miocene (8 Ma) and Pliocene (4 Ma).
In addition to the mean monsoon climate, the interannual variability of the ISM in the Late Miocene is also explored by analyzing our model experiments for the Tortonian. It reveals that the interannual variability of the ISM in the Late Miocene may have been as strong as, or even stronger than at present. This can be attributed to the strong El Niño Southern Oscillation (ENSO) at that time. In addition, the extratropical influence, such as summer North Atlantic Oscillation, on the ISM might have been weak. This may have facilitated a stronger ENSO-ISM teleconnection in the Late Miocene.
We note that although the Late Miocene Asian monsoon climate is strongly influenced by regional tectonic changes (e.g. the lower northern TP), it still exhibits great resemblance to that projected under the future global warming conditions. Better knowledge and model simulations on the Late Miocene monsoon climate may provide useful constraints on the prediction of the future Asian monsoon changes.
Aasian monsuuni on ilmastosysteemin aktiivisimpia osia ja yli kolmannes ihmiskunnasta elää sen vaikutuksen alaisena. Sen luonnollisen vaihtelun ja mekanismien ymmärtäminen on tärkeää sekä tieteellisesti että käytännön kannalta. Tässä tutkimuksessa käytin erilaisia…
Subjects/Keywords: palaeoclimate modeling; palaeoclimate modeling
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Tang, H. (2013). The spatio-temporal evolution of the Asian monsoon climate in the Late Miocene and its causes: A regional climate model study. (Doctoral Dissertation). University of Helsinki. Retrieved from http://hdl.handle.net/10138/39411
Chicago Manual of Style (16th Edition):
Tang, Hui. “The spatio-temporal evolution of the Asian monsoon climate in the Late Miocene and its causes: A regional climate model study.” 2013. Doctoral Dissertation, University of Helsinki. Accessed April 12, 2021.
http://hdl.handle.net/10138/39411.
MLA Handbook (7th Edition):
Tang, Hui. “The spatio-temporal evolution of the Asian monsoon climate in the Late Miocene and its causes: A regional climate model study.” 2013. Web. 12 Apr 2021.
Vancouver:
Tang H. The spatio-temporal evolution of the Asian monsoon climate in the Late Miocene and its causes: A regional climate model study. [Internet] [Doctoral dissertation]. University of Helsinki; 2013. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/10138/39411.
Council of Science Editors:
Tang H. The spatio-temporal evolution of the Asian monsoon climate in the Late Miocene and its causes: A regional climate model study. [Doctoral Dissertation]. University of Helsinki; 2013. Available from: http://hdl.handle.net/10138/39411

University of Texas – Austin
4.
Leroux, Audrey Josée.
Estimating a three-level latent variable regression model with cross-classified multiple membership data.
Degree: PhD, Educational Psychology, 2014, University of Texas – Austin
URL: http://hdl.handle.net/2152/26929
► The current study proposed a new model, termed the cross-classified multiple membership latent variable regression (CCMM-LVR) model, to be utilized for multiple membership data structures…
(more)
▼ The current study proposed a new model, termed the cross-classified multiple membership latent variable regression (CCMM-LVR) model, to be utilized for multiple membership data structures (for example, in the presence of student mobility across schools) that provides an extension to the three-level latent variable regression model (HM3-LVR). The HM3-LVR model is beneficial for testing more flexible, directional hypotheses about growth trajectory parameters and handles pure clustering of participants within higher-level units. However, the HM3-LVR model involves the assumption that students remain in the same cluster (school) throughout the duration of the time period of interest. The CCMM-LVR model, on the other hand, appropriately models the participants’ changing clusters over time. The first purpose of this study was to demonstrate use and interpretation of the CCMM-LVR model and its parameters with a large-scale longitudinal dataset that had a multiple membership data structure (i.e., student mobility). The impact of ignoring mobility in the real data was investigated by comparing parameter estimates, standard error estimates, and model fit indices for the two estimating models (CCMM-LVR and HM3-LVR). The second purpose of the dissertation was to conduct a simulation study to try to understand the source of potential differences between the two estimating models and find out which model’s estimates were closer to the truth given the conditions investigated. The manipulated conditions in the simulation study included the mobility rate, number of clustering units, number of individuals (i.e., students) per cluster (here, school), and number of measurement occasions per individual. The outcomes investigated in the simulation study included relative parameter bias, relative standard error bias, root mean square error, and coverage rates of the 95% credible intervals. Substantial bias was found across conditions for both models, but the CCMM-LVR model resulted in the least amount of relative parameter bias and more efficient estimates of the parameters, especially for larger numbers of clustering units. The results of the real data and simulation studies are discussed, along with the implications for applied researchers for when to consider using the CCMM-LVR model versus the misspecified HM3-LVR model.
Advisors/Committee Members: Beretvas, Susan Natasha (advisor).
Subjects/Keywords: Multilevel modeling; Growth curve modeling
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Leroux, A. J. (2014). Estimating a three-level latent variable regression model with cross-classified multiple membership data. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/26929
Chicago Manual of Style (16th Edition):
Leroux, Audrey Josée. “Estimating a three-level latent variable regression model with cross-classified multiple membership data.” 2014. Doctoral Dissertation, University of Texas – Austin. Accessed April 12, 2021.
http://hdl.handle.net/2152/26929.
MLA Handbook (7th Edition):
Leroux, Audrey Josée. “Estimating a three-level latent variable regression model with cross-classified multiple membership data.” 2014. Web. 12 Apr 2021.
Vancouver:
Leroux AJ. Estimating a three-level latent variable regression model with cross-classified multiple membership data. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2014. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/2152/26929.
Council of Science Editors:
Leroux AJ. Estimating a three-level latent variable regression model with cross-classified multiple membership data. [Doctoral Dissertation]. University of Texas – Austin; 2014. Available from: http://hdl.handle.net/2152/26929

Universiteit Utrecht
5.
Enckevort, C.M.W. van.
Students' learning of molecular modeling.
The case of computer-aided drug design against malaria disease.
Degree: 2014, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/298078
► Models are important tools used in the production, dissemination and acceptance of scientific knowledge (Dori & Barak, 2001, p. 62). The skills to learn with,…
(more)
▼ Models are important tools used in the production, dissemination and acceptance of scientific knowledge (Dori & Barak, 2001, p. 62). The skills to learn with, about and to construct a model are important for understanding in science. Within science education, especially in chemistry education, molecular
modeling (construction of a model) received a more extensive place in the curriculum. Despite the importance of this topic, little is known about teaching molecular
modeling in chemistry or science education and also the amount of teaching materials is limited.
In this study, a design based experiment was performed to get an insight in students’ learning of molecular
modeling. Within the context of drug design for malaria disease, students had to complete a curriculum unit in which they had to model a molecular analog. 24 students worked in teams of three students during the intervention of the curriculum unit. It was investigated which insights and learning outcomes the design acquired for students in the process of molecular
modeling. Also the affection of the students was measured. Data was collected by using a set of questionnaires, analyzing the recorded audiotapes and written answers and doing a group interview. The audiotapes and written answers were coded, scored and compared to a reference framework drafted in a hypothetical learning trajectory (HLT) to get an insight in the learning outcomes of the students. An inter-rater reliability check was included to ensure reliability. The questionnaires and the interviews were used to map the (improved) insights in molecular
modeling and the affection of the students.
The outcomes of this study are promising for the future. Students show great affection for the curriculum unit and a clear insight is gained about the improvements which have to be implemented to improve students’ learning about molecular
modeling.
Advisors/Committee Members: Prins, Gjalt.
Subjects/Keywords: Molecular modeling
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Enckevort, C. M. W. v. (2014). Students' learning of molecular modeling.
The case of computer-aided drug design against malaria disease. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/298078
Chicago Manual of Style (16th Edition):
Enckevort, C M W van. “Students' learning of molecular modeling.
The case of computer-aided drug design against malaria disease.” 2014. Masters Thesis, Universiteit Utrecht. Accessed April 12, 2021.
http://dspace.library.uu.nl:8080/handle/1874/298078.
MLA Handbook (7th Edition):
Enckevort, C M W van. “Students' learning of molecular modeling.
The case of computer-aided drug design against malaria disease.” 2014. Web. 12 Apr 2021.
Vancouver:
Enckevort CMWv. Students' learning of molecular modeling.
The case of computer-aided drug design against malaria disease. [Internet] [Masters thesis]. Universiteit Utrecht; 2014. [cited 2021 Apr 12].
Available from: http://dspace.library.uu.nl:8080/handle/1874/298078.
Council of Science Editors:
Enckevort CMWv. Students' learning of molecular modeling.
The case of computer-aided drug design against malaria disease. [Masters Thesis]. Universiteit Utrecht; 2014. Available from: http://dspace.library.uu.nl:8080/handle/1874/298078

Oregon State University
6.
Costa, Timothy B.
Hybrid Multiscale Methods with Applications to Semiconductors, Porous Media, and Materials Science.
Degree: PhD, Mathematics, 2016, Oregon State University
URL: http://hdl.handle.net/1957/59138
► In this work we consider two multiscale applications with tremendous computational complexity at the lower scale. First, we examine a model for charge transport in…
(more)
▼ In this work we consider two multiscale applications with tremendous computational
complexity at the lower scale. First, we examine a model for charge transport in semicon-
ductor structures with heterojunction interfaces. Due to the complex physical phenomena
at the interface, the model at the design scale is unable to adequately capture the behavior
of the structure in the interface region. Simultaneously it is computationally intractable to
simulate the full heterostructure on the scale required near the interface. Second, we con-
sider the problem of the simulation of fluid flow in a dynamically evolving porous medium.
The evolution of the medium strongly couples the porescale flow solutions and the macro
scale model, requiring a novel approach to communicate the porescale evolution to the
macroscale without resorting to the intractable simulation of the fluid flow problem di-
rectly on the porescale geometry. We formulate novel methods for these two applications
in the multiscale framework. For the semiconductor problem we present iterative sub-
structuring domain decomposition methods that decouple the interface computation from
the macroscale model. For the fluid flow problem we develop a reduced order three-scale
fluid flow model based on a spatial decomposition of the porescale geometry and the offline
approximation of a stochastic process describing macroscale permeability paramaterized
by the volume fraction of the evolved geometry.
Advisors/Committee Members: Peszynska, Malgorzata (advisor), Showalter, Ralph (committee member).
Subjects/Keywords: Multiscale modeling
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Costa, T. B. (2016). Hybrid Multiscale Methods with Applications to Semiconductors, Porous Media, and Materials Science. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/59138
Chicago Manual of Style (16th Edition):
Costa, Timothy B. “Hybrid Multiscale Methods with Applications to Semiconductors, Porous Media, and Materials Science.” 2016. Doctoral Dissertation, Oregon State University. Accessed April 12, 2021.
http://hdl.handle.net/1957/59138.
MLA Handbook (7th Edition):
Costa, Timothy B. “Hybrid Multiscale Methods with Applications to Semiconductors, Porous Media, and Materials Science.” 2016. Web. 12 Apr 2021.
Vancouver:
Costa TB. Hybrid Multiscale Methods with Applications to Semiconductors, Porous Media, and Materials Science. [Internet] [Doctoral dissertation]. Oregon State University; 2016. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/1957/59138.
Council of Science Editors:
Costa TB. Hybrid Multiscale Methods with Applications to Semiconductors, Porous Media, and Materials Science. [Doctoral Dissertation]. Oregon State University; 2016. Available from: http://hdl.handle.net/1957/59138
7.
Mallikarjuna Reddy, C.
Mathematical modeling in biological sciences a
study.
Degree: Mathematics, 2013, Jawaharlal Nehru Technological University, Anantapuram
URL: http://shodhganga.inflibnet.ac.in/handle/10603/11531
► Mathematical modeling in biological sciences is an interdisciplinary scientific research field. Mathematical modeling in developmental process has earned new respect and plays a key role…
(more)
▼ Mathematical modeling in biological sciences is an
interdisciplinary scientific research field. Mathematical modeling
in developmental process has earned new respect and plays a key
role in all domains of science and eventually provided fresh
insight into biological sciences too. Models serve as a tool to
develop, to validate hypothesis made from experimental data and
there by gaining new knowledge about biological processes. In this
work, an attempt is made to prepare mathematical model for the
water treatment, bone transplantation, blood flow and orientation
of erythrocytes in biological systems under varied boundary
conditions. Especially in water treatment and bone grafting nano
materials and methods are introduced. newlineThe present thesis is
spread over into five chapters. newlineChapter one provides brief
general introduction to the mathematical modeling and their
importance, mathematical modeling in biological sciences, need of
mathematical models, general modeling strategy, modeling
objectives, model classifications, modeling advantages, benefits,
limitations, fluids, nano materials and scope of present study are
described. The field of mathematical biology is growing rapidly.
Mathematical modeling plays an important and often indispensable
role in biological sciences because it serves as a crucial link
between the concept and realization of a biological circuit
newlineChapter two focuses the finite element analysis of blood
flow and application of pressure in the human thumb and
applications in disease invention. The human thumb has direct link
with brain, pituitary gland, pineal gland, mental nerves, head
nerves, neck etc. In particular point, the thumb pressure is
applied on a particular part and stimulates and activates. The
finite element models to analyze the blood perfusion and heat
transport in the human thumb were developed based on the transport
theory in porous media with applying of pressure. The blood
pressure and velocity at particular time were first computed and
corresponding values for the thumb were subseq
references- 92-101
Advisors/Committee Members: Ramabhupal Reddy, B.
Subjects/Keywords: Mathematical modeling
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APA ·
Chicago ·
MLA ·
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Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Mallikarjuna Reddy, C. (2013). Mathematical modeling in biological sciences a
study. (Thesis). Jawaharlal Nehru Technological University, Anantapuram. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/11531
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Mallikarjuna Reddy, C. “Mathematical modeling in biological sciences a
study.” 2013. Thesis, Jawaharlal Nehru Technological University, Anantapuram. Accessed April 12, 2021.
http://shodhganga.inflibnet.ac.in/handle/10603/11531.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mallikarjuna Reddy, C. “Mathematical modeling in biological sciences a
study.” 2013. Web. 12 Apr 2021.
Vancouver:
Mallikarjuna Reddy C. Mathematical modeling in biological sciences a
study. [Internet] [Thesis]. Jawaharlal Nehru Technological University, Anantapuram; 2013. [cited 2021 Apr 12].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/11531.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mallikarjuna Reddy C. Mathematical modeling in biological sciences a
study. [Thesis]. Jawaharlal Nehru Technological University, Anantapuram; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/11531
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
8.
Deaton, Brian D.
Causal Modeling with Applications to the Foreign Exchange Market.
Degree: 2013, Texas Digital Library
URL: http://hdl.handle.net/1969;
http://hdl.handle.net/2249.1/66829
► A combination of time series models and causal search algorithms is applied to the foreign exchange markets to find causal linkages between the six most…
(more)
▼ A combination of time series models and causal search algorithms is applied to the foreign exchange markets to find causal linkages between the six most widely traded currencies (Australian dollar, Canadian dollar, euro, Great Britain pound sterling, Japanese yen, and United States dollar). This information is used in portfolio management to improve risk management, to visualize the causal connections between currencies, and enhance the forecasting ability of time series models.
In the first section, a method is presented that decomposes portfolio risk so that risk contributions sum to the total portfolio???s risk. This decomposition is based upon a market???s underlying independent risk factors, which are found empirically using a causal search algorithm based on independent component analysis. In an application, independent risk contributions are constrained during portfolio optimizations, and the internal risk characteristics of the resulting portfolios are shown to be superior to those constructed using more traditional constraints.
In the second section, three causal search algorithms are used to identify causal relationships amongst the six most widely traded currencies in the years 2009-2011. The intent is to discover causal relationships within each year and to observe how these causal relationships change over time. The causal relationships are presented as directed acyclic graphs, and these are relatively stable over time. There might be, however, latent variables that affect the six most widely traded currencies.
In the third section, probability forecasts of the Swiss franc/euro (CHF/EUR) exchange rate from three different time series models are generated before, surrounding, and after the placement of a floor on the CHF/EUR exchange rate by the Swiss National Bank. The goal is to determine whether the exchange rate floor has a positive, negative, or insignificant affect on the calibration of the probability forecasts. Forecasts from the models are ranked with score metrics, and a graphical d-separation criterion is used in an attempt to identify the preferred model based on forecast performance. The study finds evidence that the floor on the CHF/EUR has a negative impact on the forecasting performance of the three time series models.
Advisors/Committee Members: Bessler, David A (advisor).
Subjects/Keywords: Causal Modeling
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Deaton, B. D. (2013). Causal Modeling with Applications to the Foreign Exchange Market. (Thesis). Texas Digital Library. Retrieved from http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66829
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Deaton, Brian D. “Causal Modeling with Applications to the Foreign Exchange Market.” 2013. Thesis, Texas Digital Library. Accessed April 12, 2021.
http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66829.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Deaton, Brian D. “Causal Modeling with Applications to the Foreign Exchange Market.” 2013. Web. 12 Apr 2021.
Vancouver:
Deaton BD. Causal Modeling with Applications to the Foreign Exchange Market. [Internet] [Thesis]. Texas Digital Library; 2013. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66829.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Deaton BD. Causal Modeling with Applications to the Foreign Exchange Market. [Thesis]. Texas Digital Library; 2013. Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66829
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University
9.
Pulver, Jeffrey Robert.
Modeling Community Structure and Abundance Using Observer Data for the U.S. Gulf of Mexico Deepwater Reef Fishery.
Degree: MS, Marine Biology, 2015, Texas A&M University
URL: http://hdl.handle.net/1969.1/155417
► Fishery observer data collected in the Gulf of Mexico deepwater reef fish fishery from July 2006 through December 2013 were examined for community structure using…
(more)
▼ Fishery observer data collected in the Gulf of Mexico deepwater reef fish fishery from July 2006 through December 2013 were examined for community structure using hierarchical cluster analyses to quantify species relationships and reveal stratifications in the fishery. The correlation measure of dissimilarity with average agglomerative linkage was the most efficient method using randomly fake species as a comparison tool between dissimilarity and linkage choices. This approach in combination with a multiscale bootstrapping revealed distinct stratifications and probabilities indicating the strength of species relationships in the fishery. For deepwater species managed under the individual fishing quota (IFQ) system, cluster analyses findings detected patterns in species co-occurrence on fishing sets that may be of interest to managers. Additionally, delta-lognormal boosted regression tree and zero-inflated negative binomial predictive models were compared for standardizing spatial abundance for the fishery. Deltalognormal boosted regression tree models were superior in representing fine-scale variations, however, zero-inflated negative binomial models were more representative in abundance observed on a larger spatial scale. An examination of the deepwater IFQmanaged species also found evidence for size selection of discards and differences in retention rates for some species managed under the same allocation category.
Advisors/Committee Members: Liu, Hui (advisor), von Zharen, Wyndylyn (committee member), Wells, R. J. David (committee member).
Subjects/Keywords: Fisheries; Modeling
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Pulver, J. R. (2015). Modeling Community Structure and Abundance Using Observer Data for the U.S. Gulf of Mexico Deepwater Reef Fishery. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/155417
Chicago Manual of Style (16th Edition):
Pulver, Jeffrey Robert. “Modeling Community Structure and Abundance Using Observer Data for the U.S. Gulf of Mexico Deepwater Reef Fishery.” 2015. Masters Thesis, Texas A&M University. Accessed April 12, 2021.
http://hdl.handle.net/1969.1/155417.
MLA Handbook (7th Edition):
Pulver, Jeffrey Robert. “Modeling Community Structure and Abundance Using Observer Data for the U.S. Gulf of Mexico Deepwater Reef Fishery.” 2015. Web. 12 Apr 2021.
Vancouver:
Pulver JR. Modeling Community Structure and Abundance Using Observer Data for the U.S. Gulf of Mexico Deepwater Reef Fishery. [Internet] [Masters thesis]. Texas A&M University; 2015. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/1969.1/155417.
Council of Science Editors:
Pulver JR. Modeling Community Structure and Abundance Using Observer Data for the U.S. Gulf of Mexico Deepwater Reef Fishery. [Masters Thesis]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/155417

Queens University
10.
Parsa, Mohammad Ali.
The Application of Monte Carlo Combined Methods For Modeling of Polymerization Kinetics
.
Degree: Chemical Engineering, 2014, Queens University
URL: http://hdl.handle.net/1974/12530
► The advantages and disadvantages of the two major categories of numerical methods, deterministic and stochastic approaches, in polymer reaction engineering are discussed. Combinations of methods…
(more)
▼ The advantages and disadvantages of the two major categories of numerical methods, deterministic and stochastic approaches, in polymer reaction engineering are discussed. Combinations of methods are suggested in order to take advantage of both techniques. A hybrid deterministic/stochastic approach and a combined stochastic/stochastic method are developed to represent two polymerization systems of interest.
The distribution of functional groups in polymer chains produced in radical copolymerization by starved-feed semibatch operation is simulated using three different methodologies. A deterministic model is formulated to separately track the homopolymer chains that are produced without the desired functionality, a Monte Carlo (MC) model is written to represent the system, and a hybrid deterministic/MC approach is taken using new capabilities within the software package PREDICI.
Two Monte Carlo algorithms (dynamic and static) are combined in order to model and simulate the branch distribution and topology of polymer chains synthesized in hyper-branched polymerization of polyethylene with Pd-diimine catalysts. A sensitivity analysis is conducted in order to investigate the impact of kinetic and stochastic parameters on the branch distribution as well as average chain length. Simulated results show excellent agreement with experimental observations.
Subjects/Keywords: Polymerization
;
Modeling
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Parsa, M. A. (2014). The Application of Monte Carlo Combined Methods For Modeling of Polymerization Kinetics
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/12530
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Parsa, Mohammad Ali. “The Application of Monte Carlo Combined Methods For Modeling of Polymerization Kinetics
.” 2014. Thesis, Queens University. Accessed April 12, 2021.
http://hdl.handle.net/1974/12530.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Parsa, Mohammad Ali. “The Application of Monte Carlo Combined Methods For Modeling of Polymerization Kinetics
.” 2014. Web. 12 Apr 2021.
Vancouver:
Parsa MA. The Application of Monte Carlo Combined Methods For Modeling of Polymerization Kinetics
. [Internet] [Thesis]. Queens University; 2014. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/1974/12530.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Parsa MA. The Application of Monte Carlo Combined Methods For Modeling of Polymerization Kinetics
. [Thesis]. Queens University; 2014. Available from: http://hdl.handle.net/1974/12530
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
11.
Fox, Neal P.
Top-Down Effects on Speech Perception: An Integrated
Computational and Behavioral Approach.
Degree: PhD, Cognitive Sciences, 2016, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:674171/
► During auditory language comprehension, bottom-up acoustic cues in the sensory signal are critical to the recognition of spoken words. However, listeners are also sensitive to…
(more)
▼ During auditory language comprehension, bottom-up
acoustic cues in the sensory signal are critical to the recognition
of spoken words. However, listeners are also sensitive to
higher-level processing; in general, identification of ambiguous
targets is biased by prior expectations (e.g., words over
non-words, contextually consistent words over inconsistent words).
Although it is clear that such top-down cues influence word
recognition, how they do so is less clear. The present work
examines several questions about the computational principles
underlying top-down effects on speech perception, focusing
primarily on the influence of a preceding sentential context (e.g.,
Valerie hated the... vs. Brett hated to...) on the identification
of phonetically ambiguous targets from voice-onset time continua
(e.g., between bay and pay). Chapter 1 considers a longstanding
debate: do top-down effects result from interactive modulation of
perceptual processing or from entirely autonomous, decision-level
processing? Some research has suggested that the time course of
top-down effects is incompatible with interactive models. However,
two experiments illustrate that, with appropriate controls, the
predictions of interactive models are supported. Ultimately,
though, two weaknesses of existing spoken word recognition models
(whether interactive or autonomous) are that they ignore the role
of sentential context and that they ignore the enormous variability
in the size of top-down effects. To address these gaps, Chapter 2
introduces BIASES (short for Bayesian Integration of Acoustic and
Sentential Evidence in Speech), a newly developed computational
model of speech perception. Chapter 3 demonstrates BIASES’ ability
to predict and explain fine-grained variability and asymmetries in
both novel experimental data and in previously published work.
Finally, Chapter 4 employs BIASES to examine top-down processing in
patients with aphasia. Model-based analysis of previously published
data and new data utilizing stimuli from Chapter 1 suggest that
patients experience both bottom-up processing deficits and lexical
processing deficits. Importantly, those impairments differ as a
function of patients’ clinical diagnoses. In sum, this work offers
new insights into the computations occurring at the interface
between the perceptual processing of speech and the cognitive and
linguistic processing of language.
Advisors/Committee Members: Blumstein, Sheila (Director), Frank, Michael (Reader), Morgan, James (Reader).
Subjects/Keywords: computational modeling
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Fox, N. P. (2016). Top-Down Effects on Speech Perception: An Integrated
Computational and Behavioral Approach. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:674171/
Chicago Manual of Style (16th Edition):
Fox, Neal P. “Top-Down Effects on Speech Perception: An Integrated
Computational and Behavioral Approach.” 2016. Doctoral Dissertation, Brown University. Accessed April 12, 2021.
https://repository.library.brown.edu/studio/item/bdr:674171/.
MLA Handbook (7th Edition):
Fox, Neal P. “Top-Down Effects on Speech Perception: An Integrated
Computational and Behavioral Approach.” 2016. Web. 12 Apr 2021.
Vancouver:
Fox NP. Top-Down Effects on Speech Perception: An Integrated
Computational and Behavioral Approach. [Internet] [Doctoral dissertation]. Brown University; 2016. [cited 2021 Apr 12].
Available from: https://repository.library.brown.edu/studio/item/bdr:674171/.
Council of Science Editors:
Fox NP. Top-Down Effects on Speech Perception: An Integrated
Computational and Behavioral Approach. [Doctoral Dissertation]. Brown University; 2016. Available from: https://repository.library.brown.edu/studio/item/bdr:674171/

University of Nairobi
12.
Wamuyu, George M.
Modeling Multidimensional Indicators of Poverty in Africa
.
Degree: 2015, University of Nairobi
URL: http://hdl.handle.net/11295/97648
► Poverty is a condition in which a person or community is lacking the basic needs required for a minimum standard of well-being. Poverty can be…
(more)
▼ Poverty is a condition in which a person or community is lacking the basic needs
required for a minimum standard of well-being. Poverty can be measured using eco-
nomic, social and environmental indicators. Past research on measuring poverty has
been done using an income approach. The income approach considers only one dimen-
sion of poverty and fails to consider other dimensions such as social and environmental
dimensions. The aim of this study is to develop a concept of measuring poverty using
a multidimensional approach.We used data from the Ethiopia Demographic Health
Survey. Multi-Correspondence Analysis and Non Linear Principal Component Anal-
ysis were used to extract and weight indicators of poverty.The weighted indicators
were then used to construct a Poverty index.This index can assist policy makers in
quantifying poverty.
Subjects/Keywords: Modeling Multidimensional
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Wamuyu, G. M. (2015). Modeling Multidimensional Indicators of Poverty in Africa
. (Thesis). University of Nairobi. Retrieved from http://hdl.handle.net/11295/97648
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Wamuyu, George M. “Modeling Multidimensional Indicators of Poverty in Africa
.” 2015. Thesis, University of Nairobi. Accessed April 12, 2021.
http://hdl.handle.net/11295/97648.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wamuyu, George M. “Modeling Multidimensional Indicators of Poverty in Africa
.” 2015. Web. 12 Apr 2021.
Vancouver:
Wamuyu GM. Modeling Multidimensional Indicators of Poverty in Africa
. [Internet] [Thesis]. University of Nairobi; 2015. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/11295/97648.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wamuyu GM. Modeling Multidimensional Indicators of Poverty in Africa
. [Thesis]. University of Nairobi; 2015. Available from: http://hdl.handle.net/11295/97648
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Wake Forest University
13.
Decker, William.
Modular Use of Human Body Models of Various Complexities in the Head and Thoraco-Abdominal Regions.
Degree: 2018, Wake Forest University
URL: http://hdl.handle.net/10339/90702
► The field of injury biomechanics is constantly evolving, and with it, the tools available for researchers. Computational modeling is one of these tools, specifically finite…
(more)
▼ The field of injury biomechanics is constantly evolving, and with it, the tools available for researchers. Computational modeling is one of these tools, specifically finite element human body models (HBMs). Finite element human body models can be used to investigate the mechanism and injury tolerance of various regions of the human body during blunt impact trauma through the use of computer simulation. These models can be used as a supplement to traditional crash test dummies for crash safety evaluation due to their affordability, ease of use, and increased available data points. As part of the Global Human Body Models Consortium (GHBMC) project, HBMs have developed and become more complex and biofidelic. They have also become more computationally expensive which may restrict usage from individuals with limited computational power. This motivated the development of faster running simplified HBMs similar to the detailed models, but restricted to analysis of kinematics and kinetics. In order to use the benefits from both types of models, we have developed an approach to modularly incorporate detailed components into the simplified models which allows the ability to obtain organ level response much faster than the full detailed model. The method has been implemented with the brain and thoracoabdominal cavity with comparable results to the detailed model, but with a time savings up to 90%. This thesis describes the implementation and evaluation of this modular method within the GHBMC 50th percentile male model.
Subjects/Keywords: computational modeling
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Decker, W. (2018). Modular Use of Human Body Models of Various Complexities in the Head and Thoraco-Abdominal Regions. (Thesis). Wake Forest University. Retrieved from http://hdl.handle.net/10339/90702
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Decker, William. “Modular Use of Human Body Models of Various Complexities in the Head and Thoraco-Abdominal Regions.” 2018. Thesis, Wake Forest University. Accessed April 12, 2021.
http://hdl.handle.net/10339/90702.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Decker, William. “Modular Use of Human Body Models of Various Complexities in the Head and Thoraco-Abdominal Regions.” 2018. Web. 12 Apr 2021.
Vancouver:
Decker W. Modular Use of Human Body Models of Various Complexities in the Head and Thoraco-Abdominal Regions. [Internet] [Thesis]. Wake Forest University; 2018. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/10339/90702.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Decker W. Modular Use of Human Body Models of Various Complexities in the Head and Thoraco-Abdominal Regions. [Thesis]. Wake Forest University; 2018. Available from: http://hdl.handle.net/10339/90702
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

California State Polytechnic University – Pomona
14.
Secor, Samantha.
Human Impact on a Simple Climate Model.
Degree: MS, Department of Mathematics and Statistics, 2020, California State Polytechnic University – Pomona
URL: http://hdl.handle.net/10211.3/216851
► In this thesis, we use a system of nonlinear differential equations to model the average temperature and the percentage of glacial volume on Earth. We…
(more)
▼ In this thesis, we use a system of nonlinear differential equations to model the average temperature and the percentage of glacial volume on Earth. We first make sense of the model itself, down to its geophysical properties so that we can interpret the real-world meaning of its mathematical representation. We then evaluate the model algebraically to determine the locations of the equilibrium solutions and to come up with a form for which we can run simulations. To understand numerically, we conduct various differential equation transformations that are easier to comprehend. We can then use the results to categorize all of the equilibrium points and note interesting behavior within the linearized and nonlinearized models. Lastly, we modify the initial conditions to understand how human activity would affect the model. We simulate the results over time to determine how soon drastic events would take place.
Advisors/Committee Members: Switkes, Jennifer (advisor), von Bremen, Hubertus (committee member).
Subjects/Keywords: climate modeling
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Secor, S. (2020). Human Impact on a Simple Climate Model. (Masters Thesis). California State Polytechnic University – Pomona. Retrieved from http://hdl.handle.net/10211.3/216851
Chicago Manual of Style (16th Edition):
Secor, Samantha. “Human Impact on a Simple Climate Model.” 2020. Masters Thesis, California State Polytechnic University – Pomona. Accessed April 12, 2021.
http://hdl.handle.net/10211.3/216851.
MLA Handbook (7th Edition):
Secor, Samantha. “Human Impact on a Simple Climate Model.” 2020. Web. 12 Apr 2021.
Vancouver:
Secor S. Human Impact on a Simple Climate Model. [Internet] [Masters thesis]. California State Polytechnic University – Pomona; 2020. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/10211.3/216851.
Council of Science Editors:
Secor S. Human Impact on a Simple Climate Model. [Masters Thesis]. California State Polytechnic University – Pomona; 2020. Available from: http://hdl.handle.net/10211.3/216851

Colorado State University
15.
Tuffly, Michael Francis.
Modeling the spatial and temporal dynamics of the amber-marked birch leaf miner infestation in Anchorage, Alaska.
Degree: PhD, Forest and Rangeland Stewardship, 2012, Colorado State University
URL: http://hdl.handle.net/10217/71597
► Since 1998, the invasive insect amber-marked birch leaf miner (Profenusa thomsoni Konow.) has been an issue for the birch trees in Alaska's Anchorage Bowl. P.…
(more)
▼ Since 1998, the invasive insect amber-marked birch leaf miner (Profenusa thomsoni Konow.) has been an issue for the birch trees in Alaska's Anchorage Bowl. P. thomsoni is native to Europe and an invasive defoliator of birch trees; its impacts are considered aesthetically unpleasing to Anchorage residents. In this study, a spatial and temporal model was constructed using a cellular automata (CA) method. Employing the statistical program R (R Development Core Team 2008), coupled with a custom library called RandomFields (Schlather 2012) and linear regression techniques, a CA model was created. Using five years of field data gathered between 2006 and 2010 (Lundquist et al. 2012), the CA model mimics the observed change in severity of the infestation based upon the severity in the previous year and if the region was in an area that increased or decreased in severity. A voracity test was used to compare the CA model output for the time period of the observed field data; a sensitivity analysis on various input parameters was also implemented. The CA model simulated results were analyzed for the time period 1998 to 2018 and indicated that P. thomsoni may follow three primary phases: 1) expansion, 2) decline, and 3) equilibrium. The expansion phase demonstrated a six-year spatial spread cycle, which can be described as random, disjointed regions of high infestation that move about the landscape. The expansion phase may be the result of an abundance of host, lack of natural enemies, and no density-dependent factors. The declining phase is depicted as a decrease in severity at an increase rate. The declining phase is possibly due to the combination of density-dependent factors and natural enemies. The equilibrium phase is a possible product of long-term plant defenses. The development of this spatial and temporal predictive CA model will allow resource managers to be proactive in order to mitigate and manage the P. thomsoni infestation. In addition, this
modeling method can be used to simulate other forest pests and pathogens at the landscape level.
Advisors/Committee Members: Reich, Robin (advisor), Jacobi, William (committee member), Khosla, Rajiv (committee member), Lundquist, John (committee member).
Subjects/Keywords: spatial modeling
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Tuffly, M. F. (2012). Modeling the spatial and temporal dynamics of the amber-marked birch leaf miner infestation in Anchorage, Alaska. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/71597
Chicago Manual of Style (16th Edition):
Tuffly, Michael Francis. “Modeling the spatial and temporal dynamics of the amber-marked birch leaf miner infestation in Anchorage, Alaska.” 2012. Doctoral Dissertation, Colorado State University. Accessed April 12, 2021.
http://hdl.handle.net/10217/71597.
MLA Handbook (7th Edition):
Tuffly, Michael Francis. “Modeling the spatial and temporal dynamics of the amber-marked birch leaf miner infestation in Anchorage, Alaska.” 2012. Web. 12 Apr 2021.
Vancouver:
Tuffly MF. Modeling the spatial and temporal dynamics of the amber-marked birch leaf miner infestation in Anchorage, Alaska. [Internet] [Doctoral dissertation]. Colorado State University; 2012. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/10217/71597.
Council of Science Editors:
Tuffly MF. Modeling the spatial and temporal dynamics of the amber-marked birch leaf miner infestation in Anchorage, Alaska. [Doctoral Dissertation]. Colorado State University; 2012. Available from: http://hdl.handle.net/10217/71597

Université de Neuchâtel
16.
Borghi, Andrea.
3D stochastic modeling of karst aquifers using a
pseudo-genetic methodology.
Degree: 2013, Université de Neuchâtel
URL: http://doc.rero.ch/record/31792
► Le but de cette thèse est le développement d'une méthodologie de modélisation des aquifères karstiques. Premièrement, la géométrie des conduits karstiques est simulée. La géométrie…
(more)
▼ Le but de cette thèse est le développement d'une
méthodologie de modélisation des aquifères karstiques.
Premièrement, la géométrie des conduits karstiques est simulée. La
géométrie de ces conduits est contrôlée à large échelle par la
géologie (modèle géologique), et à plus petite échelle par la
fracturation (modèle stochastique de fracturation).
Deuxièmement, ces modèles géométriques (formations 3D et conduits
ensemble) sont utilisés comme base pour la simulation d'écoulement
et de transport. En dernière partie, le simulateur de
conduits SKS ("Stochastic Karst Simulator") est couplé avec la
simulation d'écoulement et transport pour investiguer une approche
inverse qui permette d'utiliser cette méthodologie dans une étude
d'incertitude. La méthodologie de simulation des
conduits karstiques développée ici se base sur une approche dite
"<i>pseudo-génétique</i>", càd qui mime les résultats
des processus de spéléogénèses, sans pour autant simuler toute la
dynamique complexe de ces processus, comme la dissolution et le
transport réactif de calcite, etc. Dans cette approche
<i>pseudo-génétique</i> les conduits karstiques sont
simulés par une physique approchée, qui se base sur le principe de
minimisation de l'énérgie. L'eau se déplace dans un milieu en
cherchant le chemin de moindre résistance. Ce principe est utilisé
ici, par l'utilisation d'un algorithme de Fast Marching, qui permet
de calculer le chemin de moindre effort.
Advisors/Committee Members: Philippe (Dir.).
Subjects/Keywords: geological modeling
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Borghi, A. (2013). 3D stochastic modeling of karst aquifers using a
pseudo-genetic methodology. (Thesis). Université de Neuchâtel. Retrieved from http://doc.rero.ch/record/31792
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Borghi, Andrea. “3D stochastic modeling of karst aquifers using a
pseudo-genetic methodology.” 2013. Thesis, Université de Neuchâtel. Accessed April 12, 2021.
http://doc.rero.ch/record/31792.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Borghi, Andrea. “3D stochastic modeling of karst aquifers using a
pseudo-genetic methodology.” 2013. Web. 12 Apr 2021.
Vancouver:
Borghi A. 3D stochastic modeling of karst aquifers using a
pseudo-genetic methodology. [Internet] [Thesis]. Université de Neuchâtel; 2013. [cited 2021 Apr 12].
Available from: http://doc.rero.ch/record/31792.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Borghi A. 3D stochastic modeling of karst aquifers using a
pseudo-genetic methodology. [Thesis]. Université de Neuchâtel; 2013. Available from: http://doc.rero.ch/record/31792
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
17.
Díaz Sainz, Guillermo.
Modelado y simulación de un proceso de electrodiálisis con membranas bipolares suministrado con energía solar fotovoltaica: Modeling and simulation of an electrodialysis procccesses with bipolar membrane supplied with photovoltaic solar energy.
Degree: Máster en Ingeniería Química, 2017, Universidad de Cantabria
URL: http://hdl.handle.net/10902/10498
Subjects/Keywords: Modeling
…Aldaz, A. Photovoltaic
electrodialysis system for brackish water desalination: Modeling of…
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Díaz Sainz, G. (2017). Modelado y simulación de un proceso de electrodiálisis con membranas bipolares suministrado con energía solar fotovoltaica: Modeling and simulation of an electrodialysis procccesses with bipolar membrane supplied with photovoltaic solar energy. (Masters Thesis). Universidad de Cantabria. Retrieved from http://hdl.handle.net/10902/10498
Chicago Manual of Style (16th Edition):
Díaz Sainz, Guillermo. “Modelado y simulación de un proceso de electrodiálisis con membranas bipolares suministrado con energía solar fotovoltaica: Modeling and simulation of an electrodialysis procccesses with bipolar membrane supplied with photovoltaic solar energy.” 2017. Masters Thesis, Universidad de Cantabria. Accessed April 12, 2021.
http://hdl.handle.net/10902/10498.
MLA Handbook (7th Edition):
Díaz Sainz, Guillermo. “Modelado y simulación de un proceso de electrodiálisis con membranas bipolares suministrado con energía solar fotovoltaica: Modeling and simulation of an electrodialysis procccesses with bipolar membrane supplied with photovoltaic solar energy.” 2017. Web. 12 Apr 2021.
Vancouver:
Díaz Sainz G. Modelado y simulación de un proceso de electrodiálisis con membranas bipolares suministrado con energía solar fotovoltaica: Modeling and simulation of an electrodialysis procccesses with bipolar membrane supplied with photovoltaic solar energy. [Internet] [Masters thesis]. Universidad de Cantabria; 2017. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/10902/10498.
Council of Science Editors:
Díaz Sainz G. Modelado y simulación de un proceso de electrodiálisis con membranas bipolares suministrado con energía solar fotovoltaica: Modeling and simulation of an electrodialysis procccesses with bipolar membrane supplied with photovoltaic solar energy. [Masters Thesis]. Universidad de Cantabria; 2017. Available from: http://hdl.handle.net/10902/10498

University of Illinois – Urbana-Champaign
18.
Choi, Jae Won.
Modeling wireless acoustic power transmission systems.
Degree: MS, Electrical & Computer Engr, 2020, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/107851
► In the presence of a barrier which is conductive and structurally prevents penetration of electromagnetic energy, acoustic wave transmission is often used for data communications…
(more)
▼ In the presence of a barrier which is conductive and structurally prevents penetration of electromagnetic energy, acoustic wave transmission is often used for data communications and could be a viable option for wireless power transfer. Such a power transfer system design would need to incorporate the behavior of the entire acoustic channel, taking into account the properties of the acoustic transducers that create the acoustic signals, the propagation of the acoustic signals through the barrier, and the transducers and circuitry that transform the acoustic power back into electrical power. The thesis presents a model that translates the acoustic components of the system into a model that is suitable for analysis using the electrical components. Basic principles of acoustic physics and piezoelectric material properties will be discussed. Then an ABCD-parameter, two-port network representation is derived for a system compromising a piezoelectric transducer and a solid barrier. Such representations can be also be expressed in lumped-element circuits, which can be useful in designing the electrical end of the power transfer system. Using ABCD-parameter models, multiple acoustical and piezoelectric elements are cascaded and modeled as a single two-port network. Using parameter conversion of the two-port network, source and load impedance can be matched to maximize the power transfer.
Advisors/Committee Members: Singer, Andrew C (advisor).
Subjects/Keywords: Acoustic modeling
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Choi, J. W. (2020). Modeling wireless acoustic power transmission systems. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/107851
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Choi, Jae Won. “Modeling wireless acoustic power transmission systems.” 2020. Thesis, University of Illinois – Urbana-Champaign. Accessed April 12, 2021.
http://hdl.handle.net/2142/107851.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Choi, Jae Won. “Modeling wireless acoustic power transmission systems.” 2020. Web. 12 Apr 2021.
Vancouver:
Choi JW. Modeling wireless acoustic power transmission systems. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2020. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/2142/107851.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Choi JW. Modeling wireless acoustic power transmission systems. [Thesis]. University of Illinois – Urbana-Champaign; 2020. Available from: http://hdl.handle.net/2142/107851
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Notre Dame
19.
Ryan C. Kennedy.
Verification and Validation of Agent-based and
Equation-based Simulations.
Degree: Computer Science and Engineering, 2006, University of Notre Dame
URL: https://curate.nd.edu/show/ms35t724t3v
► This work centers around two subjects: 1) verification and validation of simulation models and 2) identifying transposable elements through novel approaches. Performing verification and…
(more)
▼ This work centers around two subjects: 1)
verification and validation of simulation models and 2) identifying
transposable elements through novel approaches.
Performing verification and validation on
simulations has become increasingly important as they are used in
more and more applications. Agent-based simulations are becoming
very popular and the verification and validation work previously
performed on them is minimal. Here, we perform verification and
validation techniques, including docking and visualization, on an
agent-based and an equation-based model and contrast the
effectiveness of the techniques used.
Identifying transposable elements in a genome is important for many
reasons, such as when performing evolutionary studies or when
annotating genomes. Here, we identify transposable elements in the
newly released Aedes aegypti genome using
innovative approaches, while utilizing some standard bioinformatics
tools.
Advisors/Committee Members: Frank H. Collins, Committee Member, Gregory R. Madey, Committee Chair, Amitabh Chaudhary, Committee Member, Thomas F. Cosimano, Committee Member.
Subjects/Keywords: Modeling
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Kennedy, R. C. (2006). Verification and Validation of Agent-based and
Equation-based Simulations. (Thesis). University of Notre Dame. Retrieved from https://curate.nd.edu/show/ms35t724t3v
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kennedy, Ryan C.. “Verification and Validation of Agent-based and
Equation-based Simulations.” 2006. Thesis, University of Notre Dame. Accessed April 12, 2021.
https://curate.nd.edu/show/ms35t724t3v.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kennedy, Ryan C.. “Verification and Validation of Agent-based and
Equation-based Simulations.” 2006. Web. 12 Apr 2021.
Vancouver:
Kennedy RC. Verification and Validation of Agent-based and
Equation-based Simulations. [Internet] [Thesis]. University of Notre Dame; 2006. [cited 2021 Apr 12].
Available from: https://curate.nd.edu/show/ms35t724t3v.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kennedy RC. Verification and Validation of Agent-based and
Equation-based Simulations. [Thesis]. University of Notre Dame; 2006. Available from: https://curate.nd.edu/show/ms35t724t3v
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
20.
Disenhof, Corinne R.
Investigation of Surface Models and the Use of a Smart Rock for Rockfall Modeling.
Degree: MS, 2018, University of New Hampshire
URL: https://scholars.unh.edu/thesis/1244
► Rockfall is a worldwide problem, claiming lives and causing damage to infrastructure. Common and well-studied in mountainous areas, it nevertheless poses hazards in less rugged…
(more)
▼ Rockfall is a worldwide problem, claiming lives and causing damage to infrastructure. Common and well-studied in mountainous areas, it nevertheless poses hazards in less rugged terrain as well. In New Hampshire, major instances of rockfall occur infrequently, despite the well-publicized demise of the Old Man in the Mountain. To maintain this level of safety, the Department of Transportation monitors and remediates rock cuts along roadways to minimize the threat of rockfall. However, detailed assessments of rock slope stability, such as 3D structural and stability analyses and 2D rockfall runout
modeling, are rare. A major limit on these analyses is the lack of detailed digital data, such as terrestrial lidar, which can be expensive to obtain. This thesis examines the use of readily-available digital data to perform rockfall
modeling and also assesses the use of an instrumented “Smart Rock” to obtain measurable data from experimental rockfall events. Digital elevation models and a simple photogrammetry methodology are used to create 2D profiles of rock exposures for rockfall runout
modeling. Rockfall models are compared to video analyses and Smart Rock measurements of experimental rockfalls to verify the
modeling results. The redesigned “rockfall” Smart Rock is shown to characterize rock motion throughout the rockfall path.
Advisors/Committee Members: Jean Benoit, Majid Ghayoomi, Neil Olson.
Subjects/Keywords: Modeling; Rockfall
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Disenhof, C. R. (2018). Investigation of Surface Models and the Use of a Smart Rock for Rockfall Modeling. (Thesis). University of New Hampshire. Retrieved from https://scholars.unh.edu/thesis/1244
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Disenhof, Corinne R. “Investigation of Surface Models and the Use of a Smart Rock for Rockfall Modeling.” 2018. Thesis, University of New Hampshire. Accessed April 12, 2021.
https://scholars.unh.edu/thesis/1244.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Disenhof, Corinne R. “Investigation of Surface Models and the Use of a Smart Rock for Rockfall Modeling.” 2018. Web. 12 Apr 2021.
Vancouver:
Disenhof CR. Investigation of Surface Models and the Use of a Smart Rock for Rockfall Modeling. [Internet] [Thesis]. University of New Hampshire; 2018. [cited 2021 Apr 12].
Available from: https://scholars.unh.edu/thesis/1244.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Disenhof CR. Investigation of Surface Models and the Use of a Smart Rock for Rockfall Modeling. [Thesis]. University of New Hampshire; 2018. Available from: https://scholars.unh.edu/thesis/1244
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Hawaii – Manoa
21.
Cook, Cory Len.
Increasing learning-related social skills in kindergarten students using video self-modeling.
Degree: 2016, University of Hawaii – Manoa
URL: http://hdl.handle.net/10125/101675
► M.A. University of Hawaii at Manoa 2011.
Many children who enter kindergarten are lacking the skills to succeed academically and this can lead to problems…
(more)
▼ M.A. University of Hawaii at Manoa 2011.
Many children who enter kindergarten are lacking the skills to succeed academically and this can lead to problems in transition and academic success for the student. Therefore an early intervention that addresses learning-related social skills is of need in order to address these issues before it is too late. One way to do this is by using video self-modeling. Video-self-modeling includes observation and imitation of oneself on videotape that records specific desirable behaviors. The purpose of this study is to investigate the effectiveness of video self-modeling on learning-related social skill acquisition. Three kindergarten students, two male and one female, at a Native Hawaiian public charter school participated. Experimental control was demonstrated using a staggered multiple-baseline design across participants. Significant learning-related social skill acquisition and maintenance was observed using a video self-modeling intervention.
Subjects/Keywords: self-modeling
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cook, C. L. (2016). Increasing learning-related social skills in kindergarten students using video self-modeling. (Thesis). University of Hawaii – Manoa. Retrieved from http://hdl.handle.net/10125/101675
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Cook, Cory Len. “Increasing learning-related social skills in kindergarten students using video self-modeling.” 2016. Thesis, University of Hawaii – Manoa. Accessed April 12, 2021.
http://hdl.handle.net/10125/101675.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Cook, Cory Len. “Increasing learning-related social skills in kindergarten students using video self-modeling.” 2016. Web. 12 Apr 2021.
Vancouver:
Cook CL. Increasing learning-related social skills in kindergarten students using video self-modeling. [Internet] [Thesis]. University of Hawaii – Manoa; 2016. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/10125/101675.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Cook CL. Increasing learning-related social skills in kindergarten students using video self-modeling. [Thesis]. University of Hawaii – Manoa; 2016. Available from: http://hdl.handle.net/10125/101675
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

California State Polytechnic University – Pomona
22.
Patil, Deepali.
Aluminizing UNS S30400: Thermodynamic and Kinetic Modeling.
Degree: MS, Department of Chemical and Materials Engineering, 2020, California State Polytechnic University – Pomona
URL: http://hdl.handle.net/10211.3/215333
► The deleterious effects of corrosion can be mitigated by the application of coatings that form a protective oxide layer. Halide Activated Pack Cementation (HAPC) is…
(more)
▼ The deleterious effects of corrosion can be mitigated by the application of coatings that form a protective oxide layer. Halide Activated Pack Cementation (HAPC) is a coating method in which a halide vapor is generated within a pack and undergoes reactions that result in the coating element being deposited onto the substrate and diffusing into it. In this study, UNS S30400 was aluminized for various times (1 h, 4 h and 9 h) at 650??C. Coupon cross-sections were characterized using optical microscopy, scanning electron microscopy coupled with electron dispersive spectroscopy and electron probe micro analyzer to measure coating thicknesses and concentration profiles of coating element Al and substrate elements Fe, Cr and Ni. To understand the phases formed in the aluminizing of UNS S30400 the coatings, a study was performed using Thermo-Calc. An isopleth for the pseudo-binary system, Al-(Fe-Cr-Ni) was generated. In order to study the kinetics of the coating growth, diffusion coefficients were calculated using a diffusion tool from a Python library, pyDiffusion, where experimentally determined concentration profiles were provided as the input and inter-diffusion coefficients were calculated. The source code for calculation of diffusion coefficients for this system was validated by using concentration profiles as input from two different sources, (a) EDS data from aluminizing UNS S30400 (Cal Poly Pomona), and (b)aluminized Ni-Al alloy from external literature. There are several issues remaining in regard to the code and suggestions for future work have been provided.
Advisors/Committee Members: Ravi, Vilupanur (advisor), Nakhjiri, Navid (committee member).
Subjects/Keywords: diffusion modeling
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Patil, D. (2020). Aluminizing UNS S30400: Thermodynamic and Kinetic Modeling. (Masters Thesis). California State Polytechnic University – Pomona. Retrieved from http://hdl.handle.net/10211.3/215333
Chicago Manual of Style (16th Edition):
Patil, Deepali. “Aluminizing UNS S30400: Thermodynamic and Kinetic Modeling.” 2020. Masters Thesis, California State Polytechnic University – Pomona. Accessed April 12, 2021.
http://hdl.handle.net/10211.3/215333.
MLA Handbook (7th Edition):
Patil, Deepali. “Aluminizing UNS S30400: Thermodynamic and Kinetic Modeling.” 2020. Web. 12 Apr 2021.
Vancouver:
Patil D. Aluminizing UNS S30400: Thermodynamic and Kinetic Modeling. [Internet] [Masters thesis]. California State Polytechnic University – Pomona; 2020. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/10211.3/215333.
Council of Science Editors:
Patil D. Aluminizing UNS S30400: Thermodynamic and Kinetic Modeling. [Masters Thesis]. California State Polytechnic University – Pomona; 2020. Available from: http://hdl.handle.net/10211.3/215333

Louisiana State University
23.
McCammon, Miles Alexander.
Variations in pore water salinities above and below allochthonous salt sheets in the deepwater Gulf of Mexico: implications for mechanisms of solute transport.
Degree: MS, Earth Sciences, 2011, Louisiana State University
URL: etd-01232012-154927
;
https://digitalcommons.lsu.edu/gradschool_theses/1911
► Spatial variations in salinity of pore waters in marine sediments provide useful information on processes and rates of subseafloor fluid flow and solute transport, particularly…
(more)
▼ Spatial variations in salinity of pore waters in marine sediments provide useful information on processes and rates of subseafloor fluid flow and solute transport, particularly if there are evaporites in the section. Pore water salinities were determined for 18 drill holes which penetrated allochthonous salt bodies in 12 widely-scattered protraction blocks on the Louisiana offshore continental shelf and slope. Salinities were calculated from Log ASCII Standard-Logging While Drilling (LAS-LWD) logs using the Revil et al. (1998) dual-conductivity technique. The sites represent a wide range of field settings. Water depths range from 30 to 1990 m, depths to the top of salt from the seafloor range from 440 to 5200 m, and salt thicknesses range from 70 to 2000 m. Sediment ages above and below salt and approximate sedimentation rates were determined from Bureau of Ocean Energy Management (BOEM) paleontological data and range from Miocene to Recent. Sites in eight blocks have concave downward salinity profiles above salt, consistent with transient molecular diffusive transport with possible compaction-driven flow. The salinity profiles were modeled using two scenarios: 1) salt was emplaced at its present depth, and molecular diffusion upward from the top of salt has been the sole solute transport mechanism; 2) salt was emplaced near the seafloor, and there has been progressive burial of salt with compaction-driven advective flow upward since. The time required by molecular diffusion alone tends to exceed the age of the sediments. A better fit in space and time is obtained on the assumption that sediment compaction is also a driving force. Salinities in two blocks increase upward, possibly reflecting lateral flow of brines from shallower salt. Salinities in the two remaining blocks are elevated but constant for distances of 500 to 1000 m above salt and may reflect ponding of brines derived from shallower salt. At sites where there is subsalt information, the salinity profiles are generally convex upward, reflecting probable diffusional transport downward. The results are consistent with an earlier LSU study which concluded that dominant mechanisms of vertical solute transport in deepwater Gulf of Mexico sediments include diffusion and compaction-driven advection.
Subjects/Keywords: groundwater; modeling
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
McCammon, M. A. (2011). Variations in pore water salinities above and below allochthonous salt sheets in the deepwater Gulf of Mexico: implications for mechanisms of solute transport. (Masters Thesis). Louisiana State University. Retrieved from etd-01232012-154927 ; https://digitalcommons.lsu.edu/gradschool_theses/1911
Chicago Manual of Style (16th Edition):
McCammon, Miles Alexander. “Variations in pore water salinities above and below allochthonous salt sheets in the deepwater Gulf of Mexico: implications for mechanisms of solute transport.” 2011. Masters Thesis, Louisiana State University. Accessed April 12, 2021.
etd-01232012-154927 ; https://digitalcommons.lsu.edu/gradschool_theses/1911.
MLA Handbook (7th Edition):
McCammon, Miles Alexander. “Variations in pore water salinities above and below allochthonous salt sheets in the deepwater Gulf of Mexico: implications for mechanisms of solute transport.” 2011. Web. 12 Apr 2021.
Vancouver:
McCammon MA. Variations in pore water salinities above and below allochthonous salt sheets in the deepwater Gulf of Mexico: implications for mechanisms of solute transport. [Internet] [Masters thesis]. Louisiana State University; 2011. [cited 2021 Apr 12].
Available from: etd-01232012-154927 ; https://digitalcommons.lsu.edu/gradschool_theses/1911.
Council of Science Editors:
McCammon MA. Variations in pore water salinities above and below allochthonous salt sheets in the deepwater Gulf of Mexico: implications for mechanisms of solute transport. [Masters Thesis]. Louisiana State University; 2011. Available from: etd-01232012-154927 ; https://digitalcommons.lsu.edu/gradschool_theses/1911

University of Central Florida
24.
Anderson, Wesley.
Development of a Functional In Vitro 3D Model of the Peripheral Nerve.
Degree: 2018, University of Central Florida
URL: https://stars.library.ucf.edu/etd/5946
► Peripheral neuropathies, affect approximately 20 million people in the United States and are often a complication of conditions such as diabetes that can result in…
(more)
▼ Peripheral neuropathies, affect approximately 20 million people in the United States and are often a complication of conditions such as diabetes that can result in amputation of affected areas such as the feet and toes. In vitro methodologies to facilitate the understanding and treatment of these disorders often lack the cellular and functional complexity required to accurately model peripheral neuropathies. In particular, they are often 2-D and functional readouts, such as electrical activity, are limited to cell bodies thereby limiting the understanding of axonopathy which often characterizes these disorders.
We have developed a functional 3-D model of peripheral nerves using a capillary alginate gel (Capgel™), as a scaffold. We hypothesize that: 1) The unique microcapillary structure of Capgel™ allows for the
modeling of the 3-D microstructure of the peripheral nerve, and 2) That axon bundling in the capillary allows for the detection of axonal electrical activity.
In our initial studies, we demonstrate that culturing embryonic dorsal root ganglia (DRG) within the Capgel™ environment allows for the separation of cell bodies from axons and recreates many of the features of an in vivo peripheral nerve fascicle including myelinated axons and the formation of a rudimentary perineurium. To develop functionality for this model we have integrated the DRG Capgel™ culture with a microelectrode array to examine spontaneous activity in axon bundles, which we find demonstrates superiority to other widely used 2-D models of the same tissue. Furthermore, by analyzing the activity on individual electrodes, we were able to record action potentials from multiple axons within the same bundle indicating a functional complexity comparable to that observed in fascicles in vivo. This 3D model of the peripheral nerve can be used to study the functional complexities of peripheral neuropathies and nerve regeneration as well as being utilized in the development of novel therapeutics.
Advisors/Committee Members: Lambert, Stephen.
Subjects/Keywords: Disease Modeling
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Anderson, W. (2018). Development of a Functional In Vitro 3D Model of the Peripheral Nerve. (Doctoral Dissertation). University of Central Florida. Retrieved from https://stars.library.ucf.edu/etd/5946
Chicago Manual of Style (16th Edition):
Anderson, Wesley. “Development of a Functional In Vitro 3D Model of the Peripheral Nerve.” 2018. Doctoral Dissertation, University of Central Florida. Accessed April 12, 2021.
https://stars.library.ucf.edu/etd/5946.
MLA Handbook (7th Edition):
Anderson, Wesley. “Development of a Functional In Vitro 3D Model of the Peripheral Nerve.” 2018. Web. 12 Apr 2021.
Vancouver:
Anderson W. Development of a Functional In Vitro 3D Model of the Peripheral Nerve. [Internet] [Doctoral dissertation]. University of Central Florida; 2018. [cited 2021 Apr 12].
Available from: https://stars.library.ucf.edu/etd/5946.
Council of Science Editors:
Anderson W. Development of a Functional In Vitro 3D Model of the Peripheral Nerve. [Doctoral Dissertation]. University of Central Florida; 2018. Available from: https://stars.library.ucf.edu/etd/5946

Georgia State University
25.
Sterrett, Natalie.
Characterizing Multiple Spatial Waves of the 1991-1997 Cholera Epidemic in Peru.
Degree: MPH, Public Health, 2018, Georgia State University
URL: https://scholarworks.gsu.edu/iph_theses/607
► Background Due to a lack of sanitary infrastructure and a highly susceptible population, Peru experienced a historic outbreak of Vibrio cholerae O1 that began…
(more)
▼ Background
Due to a lack of sanitary infrastructure and a highly susceptible population, Peru experienced a historic outbreak of Vibrio cholerae O1 that began in 1991 and generated multiple waves of disease for several years. Though case-fatality was low, the epidemic put massive strain on healthcare and governmental resources. Here we explore the transmission dynamics and spatiotemporal variation of cholera in Peru using mathematical models and statistical analyses that account for environmental conditions favoring the persistence of bacteria in the environment.
Methods
The authors use dynamic transmission models that incorporate seasonal variation in temperature, concentration of vibrios in the environment, as well as separate human and environmental transmission pathways. The model is fit to weekly department level data obtained from the cholera surveillance system in Peru. The authors also assess the spatial patterns of cholera transmission and correlations between case incidence, time of epidemic onset, and department level variables. Reproductive numbers are compared across departments.
Results
Our findings indicate that the epidemic first hit the coastal departments of Peru and later spread through the highlands and jungle regions. There was high seasonal variation in case incidence, with three clear waves of transmission corresponding to the warm seasons in Peru. Department level variables such as population size and elevation also played a role in transmission patterns. Finally, basic reproductive numbers most often ranged from one to eleven depending on department and time of year. Lima had the largest reproductive number, likely due to its population density and proximity to the coast.
Conclusions
Incorporating environmental variables into an epidemic model predicts the multiple waves of transmission characteristic of it{V. cholerae}, and effectively differentiates transmission patterns by geographic region even in the absence of unique parameter estimates. Mathematical models can provide valuable information about transmission patterns and should continue to be used to inform public health decision making.
Advisors/Committee Members: Gerardo Chowell, Kimberlyn Roosa.
Subjects/Keywords: cholera; modeling
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sterrett, N. (2018). Characterizing Multiple Spatial Waves of the 1991-1997 Cholera Epidemic in Peru. (Thesis). Georgia State University. Retrieved from https://scholarworks.gsu.edu/iph_theses/607
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Sterrett, Natalie. “Characterizing Multiple Spatial Waves of the 1991-1997 Cholera Epidemic in Peru.” 2018. Thesis, Georgia State University. Accessed April 12, 2021.
https://scholarworks.gsu.edu/iph_theses/607.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Sterrett, Natalie. “Characterizing Multiple Spatial Waves of the 1991-1997 Cholera Epidemic in Peru.” 2018. Web. 12 Apr 2021.
Vancouver:
Sterrett N. Characterizing Multiple Spatial Waves of the 1991-1997 Cholera Epidemic in Peru. [Internet] [Thesis]. Georgia State University; 2018. [cited 2021 Apr 12].
Available from: https://scholarworks.gsu.edu/iph_theses/607.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Sterrett N. Characterizing Multiple Spatial Waves of the 1991-1997 Cholera Epidemic in Peru. [Thesis]. Georgia State University; 2018. Available from: https://scholarworks.gsu.edu/iph_theses/607
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Texas – Austin
26.
Gutekunst, Robert Jacob.
An empirical delay model for application in unsignalized intersections in dynamic traffic assignment.
Degree: MSin Engineering, Civil Engineering, 2014, University of Texas – Austin
URL: http://hdl.handle.net/2152/28256
► Up until recently, unsignalized nodes have been either ignored or inadequately represented in Dynamic Traffic Assignment (DTA) models. This is due to the difficult nature…
(more)
▼ Up until recently, unsignalized nodes have been either ignored or inadequately represented in Dynamic Traffic Assignment (DTA) models. This is due to the difficult nature of incorporating internal node conflicts into dynamic flow models. It was thought or assumed that these nodes had little impact on overall model results, but evidence from testing in Visual Interactive System for Transportation Algorithms (VISTA), a DTA model, reveals that may not be the case. This paper explores recent attempts at characterizing stop sign effects within DTA flow models. From previous studies, it has been found that incorporating these unsignalized and priority movements internal to the flow model requires large amounts of computational power, are challenging to make efficient, and lead to a multiple or infinite solution space. Based on these findings, a deterministic approach is both impractical and likely impossible in the existing framework of the Cell Transmission (CTM) and Link Transmission (LTM) models commonly used in DTA. Thus, a method of utilizing empirical relationships based on information readily available in these models may be a more acceptable approach. Microsimulation is much more suitable for
modeling these types of interactions and is capable of producing results near to reality. For this reason, microsimulation was chosen as a viable method for developing empirical relationships of such complex interactions to then be used as inputs into the macroscopic flow models of DTA. This paper presents a model developed to calculate delays expected by vehicles at stop approaches based on information that can be taken from a dynamic flow model such as CTM and LTM models. This model is validated by video data recorded and analyzed for accuracy. Potential uses and probable implementations of the model are explored to appropriately incorporate unsignalized and priority movements into existing flow models.
Advisors/Committee Members: Machemehl, Randy B. (advisor).
Subjects/Keywords: DTA; Modeling
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APA ·
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APA (6th Edition):
Gutekunst, R. J. (2014). An empirical delay model for application in unsignalized intersections in dynamic traffic assignment. (Masters Thesis). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/28256
Chicago Manual of Style (16th Edition):
Gutekunst, Robert Jacob. “An empirical delay model for application in unsignalized intersections in dynamic traffic assignment.” 2014. Masters Thesis, University of Texas – Austin. Accessed April 12, 2021.
http://hdl.handle.net/2152/28256.
MLA Handbook (7th Edition):
Gutekunst, Robert Jacob. “An empirical delay model for application in unsignalized intersections in dynamic traffic assignment.” 2014. Web. 12 Apr 2021.
Vancouver:
Gutekunst RJ. An empirical delay model for application in unsignalized intersections in dynamic traffic assignment. [Internet] [Masters thesis]. University of Texas – Austin; 2014. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/2152/28256.
Council of Science Editors:
Gutekunst RJ. An empirical delay model for application in unsignalized intersections in dynamic traffic assignment. [Masters Thesis]. University of Texas – Austin; 2014. Available from: http://hdl.handle.net/2152/28256

University of Texas – Austin
27.
Mu, Xiaojia.
Modeling the biomolecular self-assembly and interaction.
Degree: PhD, Biomedical Engineering, 2014, University of Texas – Austin
URL: http://hdl.handle.net/2152/31288
► What materials designers most envy is nature’s building design. It has long been a dream for scientists to mimic and further engineer the behaviors, interactions,…
(more)
▼ What materials designers most envy is nature’s building design. It has long been a dream for scientists to mimic and further engineer the behaviors, interactions, and reactions of biomolecules beyond experimental limits. To interpret and facilitate novel materials’ design, a hierarchical approach is presented in this dissertation. With the advent of molecular
modeling, many biomolecular interactions can be studied. Using both computational and experimental approaches, we investigated the self-assembly of fluorenylmethoxycarbonyl-conjugated dipeptides (which are called “biomimetic materials”) including Fmoc-dialanine (Fmoc-AA) and Fmoc-Alanine-Lactic acid (Fmoc-ALac) molecules. We simulated the assembly of Fmoc-dipeptides and compared with experiments. We illustrated not only the angstrom-scale self-assembled structures, but also a prevalent polyproline II conformation with β-sheet-like hydrogen bonding pattern among short peptides. Further, simulations to calculate the potential of mean force (PMF) and melting temperatures were performed to gain deeper insights into the inter-fibril interaction. An energetic preference for fibril-fibril surface contact was demonstrated for the first time, which arises from a fibril-level amphiphilicity. From our study, a hierarchical self-assembly process mediated by the balance between hydrophobicity and hydrophilicity of fibril structures was unveiled. The next major topic in this dissertation involves the development of a chemically accurate polarizable multipole-based molecular mechanics model with the investigation of a series of chloromethanes. The ability of molecular
modeling to make prediction is determined by the accuracy of underlying physical model. The traditional fixed-charge based force field is severely limited when applied to highly charged systems, halogen, phosphate and sulfate compounds. Via a sophisticated electrostatic model, an accurate description of electrostatics in organochlorine compounds and halogen bonds were achieved. Our model demonstrated its advantages by reproducing the experimental density and heat of vaporization; besides, the calculated hydration free energy, solvent reaction fields, and interaction energies of several homo- and heterodimer of chloromethanes were all in good agreement with experimental and ab initio data.
Advisors/Committee Members: Ren, Pengyu (advisor), Suggs, Laura (committee member), Elber, Ron (committee member), Stachowiak, Jeanne C. (committee member), Yeh, Hsin-Chih (Tim) (committee member).
Subjects/Keywords: Simulation; Modeling
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mu, X. (2014). Modeling the biomolecular self-assembly and interaction. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/31288
Chicago Manual of Style (16th Edition):
Mu, Xiaojia. “Modeling the biomolecular self-assembly and interaction.” 2014. Doctoral Dissertation, University of Texas – Austin. Accessed April 12, 2021.
http://hdl.handle.net/2152/31288.
MLA Handbook (7th Edition):
Mu, Xiaojia. “Modeling the biomolecular self-assembly and interaction.” 2014. Web. 12 Apr 2021.
Vancouver:
Mu X. Modeling the biomolecular self-assembly and interaction. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2014. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/2152/31288.
Council of Science Editors:
Mu X. Modeling the biomolecular self-assembly and interaction. [Doctoral Dissertation]. University of Texas – Austin; 2014. Available from: http://hdl.handle.net/2152/31288

University of Waterloo
28.
Ning, Zeren.
Comparison of Hydraulic Tomography Survey with and without Cut-off Walls at the Narashino Site, Japan.
Degree: 2021, University of Waterloo
URL: http://hdl.handle.net/10012/16630
► This study investigates the performance of several different conceptualizations of inverse modeling including the effective parameter, geological zonation and geostatistical inversion approaches, on characterizing the…
(more)
▼ This study investigates the performance of several different conceptualizations of inverse modeling including the effective parameter, geological zonation and geostatistical inversion approaches, on characterizing the hydraulic parameter fields, such as hydraulic conductivity and specific storage, at the Narashino Site in Chiba Prefecture, Japan. The simulation of effective parameter and geological zonation approaches are achieved by coupling HydroGeoSphere (HGS) and model independent parameter estimation code PEST using head records during the step-up pumping/injection tests, while the simulation of geostatistical inversion approach is achieved by using the sequential successive linear estimator with the loop iteration scheme (SSLE_loop) to invert the hydraulic tomography (HT) test data collected during 2019 and 2020. The simulation results of the step-up pumping/injection tests also provide geological information that are used as prior information in the HT analyses.
Results obtained from different approaches suggest that HT is a robust method on characterizing the heterogeneity of hydraulic properties. Comparison of the investigated cases indicates that including more data into the inversion process is able to improve the prediction of the groundwater flow behavior. Yet, a data set that contains noise or error might result in the deterioration of estimation performance. Also, the comparison of results from the 2019 and 2020 HT surveys revealed some discrepancy in the estimated values. The discrepancy might be caused by: (1) different number of tests analyzed; (2) different number of data sets incorporated into the inverse model; (3) different order of tests included in SSLE_loop; and (4) different testing conditions. Overall, this study successfully characterizes the heterogeneity and demonstrates the effectiveness of the HT method at the Narashino Site.
Subjects/Keywords: groundwater modeling
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ning, Z. (2021). Comparison of Hydraulic Tomography Survey with and without Cut-off Walls at the Narashino Site, Japan. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/16630
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ning, Zeren. “Comparison of Hydraulic Tomography Survey with and without Cut-off Walls at the Narashino Site, Japan.” 2021. Thesis, University of Waterloo. Accessed April 12, 2021.
http://hdl.handle.net/10012/16630.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ning, Zeren. “Comparison of Hydraulic Tomography Survey with and without Cut-off Walls at the Narashino Site, Japan.” 2021. Web. 12 Apr 2021.
Vancouver:
Ning Z. Comparison of Hydraulic Tomography Survey with and without Cut-off Walls at the Narashino Site, Japan. [Internet] [Thesis]. University of Waterloo; 2021. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/10012/16630.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ning Z. Comparison of Hydraulic Tomography Survey with and without Cut-off Walls at the Narashino Site, Japan. [Thesis]. University of Waterloo; 2021. Available from: http://hdl.handle.net/10012/16630
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology
29.
Verstegen, E. (author).
Runoff Modeling in Drainage Networks Using Probabilistic Graphs.
Degree: 2016, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:42578519-128b-4f1f-bad9-540f319a8361
► Conventional hydrological models use a deterministic approach. One could think of it like a black box, having an input, parameters, relations and an output. The…
(more)
▼ Conventional hydrological models use a deterministic approach. One could think of it like a black box, having an input, parameters, relations and an output. The parameters are calibrated by comparing the model output with observations of the system response (for example river runoff). When assessing the uncertainty in models the focus is often on the parameter uncertainty and all other variables are considered to be true. Not taking into account all sources of uncertainty, results in unreliable knowledge about the parameter uncertainty. A method to include more sources of uncertainty is applying a probabilistic model. Using this model, all variables are described by probability distributions. In a spatially distributed model this allows for a spatial estimation of variables and their uncertainty in all model components. Due to the large amount of variables in a distributed model, the complexity of the exact solution of the probabilistic model increases. To be able to efficiently calculate an approximate solution, the probabilistic model is factorized and structured in a factor graph, a form of a probabilistic graph. A factor graph contains factors and variables, where the factors represent the relations between variables and physical knowledge while the variables represent the belief about the data. A factor graph is bipartite, which means that factors are only connected with variables and vice versa. Information propagates through the graph using message passing. This is a process where a factor updates each connected variable, based on a function of the other connected variables. If the graph has a tree structure, message passing starts at the highest level of the tree, progressing downward. This ensures that all information reaches the root of the tree. The process is then reversed in an upward sweep of message passing, propagating all gained knowledge also upstream. When approximations are used or when the tree contains cycles, multiple iterations (downward and upward sweeps) are needed for the variables to converge to their final value. The result is a posterior distribution of every variable in every cell. In this research, a probabilistic graph is applied on a distributed runoff accumulation model. In each cell of the model a local runoff is calculated based on the precipitation, evaporation and an unknown bias term (initiated by bias parameters), which are all represented by a Gaussian distribution. Using flow paths, derived from a Digital Elevation Model, the local runoff is accumulated into accumulated runoff. A physical positivity constraint is added to the accumulated runoff and forcing data to prevent negative values. Multiple runoff observations (Gaussian distributed) are added resulting in spatial estimations of accumulated runoff, local runoff and bias, and an updated belief about the precipitation and evaporation. The bias parameters which initiate the bias in each cell contain uncertainty as well, allowing the parameters to be updated given the data received from the model. After the solution has…
Advisors/Committee Members: Schoups, G.H.W. (mentor), van de Giesen, N.C. (mentor), Heemink, A.W. (mentor).
Subjects/Keywords: runoff modeling; discharge modeling; graphical modeling; probabilistic modeling; factor graph; uncertainty; spatial distribution; distributed modeling
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Verstegen, E. (. (2016). Runoff Modeling in Drainage Networks Using Probabilistic Graphs. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:42578519-128b-4f1f-bad9-540f319a8361
Chicago Manual of Style (16th Edition):
Verstegen, E (author). “Runoff Modeling in Drainage Networks Using Probabilistic Graphs.” 2016. Masters Thesis, Delft University of Technology. Accessed April 12, 2021.
http://resolver.tudelft.nl/uuid:42578519-128b-4f1f-bad9-540f319a8361.
MLA Handbook (7th Edition):
Verstegen, E (author). “Runoff Modeling in Drainage Networks Using Probabilistic Graphs.” 2016. Web. 12 Apr 2021.
Vancouver:
Verstegen E(. Runoff Modeling in Drainage Networks Using Probabilistic Graphs. [Internet] [Masters thesis]. Delft University of Technology; 2016. [cited 2021 Apr 12].
Available from: http://resolver.tudelft.nl/uuid:42578519-128b-4f1f-bad9-540f319a8361.
Council of Science Editors:
Verstegen E(. Runoff Modeling in Drainage Networks Using Probabilistic Graphs. [Masters Thesis]. Delft University of Technology; 2016. Available from: http://resolver.tudelft.nl/uuid:42578519-128b-4f1f-bad9-540f319a8361

Cornell University
30.
Cerrone, Albert.
Investigation Of Multiscale Damage Initiation And Propagation Capabilities.
Degree: PhD, Civil and Environmental Engineering, 2014, Cornell University
URL: http://hdl.handle.net/1813/37021
► Fracture is largely a microstructure-based phenomenon, but for experimentalists, computational mechanicians, and fleet managers operating at the macroscale, this fact might seem inexplicable, inapplicable, or…
(more)
▼ Fracture is largely a microstructure-based phenomenon, but for experimentalists, computational mechanicians, and fleet managers operating at the macroscale, this fact might seem inexplicable, inapplicable, or even inconsequential. The latter response is what the three chapters of this dissertation address. Together, they attempt to dispel the notion that microstructural effects do not translate in any useful way to the structural scale. They also present models which are verified and validated herein to ease this disconnect. These three chapters are individual papers submitted to refereed journals for publication. The paper in the first chapter appears in Engineering Fracture Mechanics (DOI: http://dx.doi.org/10.1016/j.engfracmech.2014.03.010). It generalizes the Park-PaulinoRoesler potential-based cohesive zone model to three-dimensions, a means to model fracture even under a high degree of mode-mixity at both the macro- and micro-scales. The generalization is validated against several material tests at the macroscale: T-Peel, MMB, ECT, and BDWT. Its ability to model intergranular fracture at the microscale is also explored. The paper in the second chapter fills a void in the Digital Twin community- it presents for the first time a straight-forward use case which both clarifies and motivates this new paradigm in fleet management. Specifically, ductile fracture is modeled in a non-standardized specimen which fails along one of two likely crack paths. This crack path ambiguity, the result of grain-size deviations in specimen geometry, underpins the importance of considering as-manufactured component geometry in the design, assessment, and certification of structural systems, a cornerstone of Digital Twin. It also highlights the limitations of a continuum plasticity damage model in resolving accurately this ambiguity particularly close to the bifurcation, on the order of a few grain sizes, and motivates the need to consider crack nucleation at the microscale. The paper in the third chapter demonstrates Digital Twin at the microscale. It details the implementation, verification, and validation of a microstructure-based, Digital Twin framework which accounts for the predominant microcrack nucleation mechanism in the nickel-based superalloy LSHR. Also included is an extensive grain boundary analysis, an investigation that would otherwise be impossible to conduct to any appreciable fidelity without the as-processed, Digital Twin microstructural model.
Advisors/Committee Members: Ingraffea, Anthony R (chair), Zehnder, Alan Taylor (committee member), Warner, Derek H. (committee member), Rollett, Anthony (committee member).
Subjects/Keywords: cohesive zone modeling; Digital Twin; microscale modeling
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cerrone, A. (2014). Investigation Of Multiscale Damage Initiation And Propagation Capabilities. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/37021
Chicago Manual of Style (16th Edition):
Cerrone, Albert. “Investigation Of Multiscale Damage Initiation And Propagation Capabilities.” 2014. Doctoral Dissertation, Cornell University. Accessed April 12, 2021.
http://hdl.handle.net/1813/37021.
MLA Handbook (7th Edition):
Cerrone, Albert. “Investigation Of Multiscale Damage Initiation And Propagation Capabilities.” 2014. Web. 12 Apr 2021.
Vancouver:
Cerrone A. Investigation Of Multiscale Damage Initiation And Propagation Capabilities. [Internet] [Doctoral dissertation]. Cornell University; 2014. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/1813/37021.
Council of Science Editors:
Cerrone A. Investigation Of Multiscale Damage Initiation And Propagation Capabilities. [Doctoral Dissertation]. Cornell University; 2014. Available from: http://hdl.handle.net/1813/37021
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