Social and Behavioral Sciences Commons^™

The Stability And Change Of Trait Emotional Intelligence, Conflict Communication Patterns, And Relationship Satisfaction: A One-Year Longitudinal Study, Patrick Heaven, Joseph Ciarrochi, Lynne Smith

joseph Ciarrochi

No abstract provided.

Efficiency And Stability In Large Matching Markets, Yeon-Koo Che, Olivier Tercieux

Cowles Foundation Discussion Papers

We study efficient and stable mechanisms in matching markets when the number of agents is large and individuals’ preferences and priorities are drawn randomly. When agents’ preferences are uncorrelated, then both efficiency and stability can be achieved in an asymptotic sense via standard mechanisms such as deferred acceptance and top trading cycles. When agents’ preferences are correlated over objects, however, these mechanisms are either inefficient or unstable even in an asymptotic sense. We propose a variant of deferred acceptance that is asymptotically efficient, asymptotically stable and asymptotically incentive compatible. This new mechanism performs well in a counterfactual calibration based on …

Inference Under Stability Of Risk Preferences, Levon Barseghyan, Francesca Molinari, Joshua C. Teitelbaum

Georgetown Law Faculty Publications and Other Works

We leverage the assumption that preferences are stable across contexts to partially identify and conduct inference on the parameters of a structural model of risky choice. Working with data on households' deductible choices across three lines of insurance coverage and a model that nests expected utility theory plus a range of non-expected utility models, we perform a revealed preference analysis that yields household-specific bounds on the model parameters. We then impose stability and other structural assumptions to tighten the bounds, and we explore what we can learn about households' risk preferences from the intervals defined by the bounds. We further …

Mother And Child Residential Treatment From An Adult Child Perspective: "The Forgotten Voices", April Eden Wilson

Electronic Theses, Projects, and Dissertations

These days most everyone can say that they know someone who has been impacted by substance abuse and today’s society is very familiar with the fact that it can wreak havoc on families. There has been a significant amount of research devoted to finding not only the best practices to treat families who are impacted by the disease of addiction but there has also been a great deal of attention focused on the adult perspective on these services once they have been received. Where the research is definitely lacking is how the children involved with the services perceive their own …

Thermal Stability And Properties Of Deformation-Processed Cu-Fe In Situ Composites, Keming Liu, Zhengyi Jiang, Jingwei Zhao, Jin Zou, Lei Lu, Deping Lu

Faculty of Engineering and Information Sciences - Papers: Part A

This paper investigated the thermal stability, tensile strength, and conductivity of deformation-processed Cu-14Fe in situ composites produced by thermo-mechanical processing. The thermal stability was analyzed using scanning electronic microscope and transmission electron microscope. The tensile strength and conductivity were evaluated using tensile-testing machine and micro-ohmmeter, respectively. The Fe fibers in the deformation-processed Cu-14Fe in situ composites undergo edge recession, longitudinal splitting, cylinderization, break-up, and spheroidization during the heat treatment. The Cu matrix experiences recovery, recrystallization, and precipitation phase transition. The tensile strength and conductivity first increase with increasing temperature of heat treatment, reach peak values at different temperatures, and then …

A Semi-Analytical Analysis Of The Stability Of The Reversible Selkov Model, Khaled. Al Noufaey, Timothy R. Marchant, Maureen P. Edwards

Faculty of Engineering and Information Sciences - Papers: Part A

Semi-analytical solutions for the reversible Selkov model are developed and used to investigate its static and dynamic stability. A one-dimensional reaction-diffusion cell is considered with all steps of the Selkov reaction modeled. A coupled set of four partial differential equations is obtained for the precursor, reactant, autocatalyst and final product concentrations. The Galerkin method is applied to approximate the spatial structure of the concentrations to obtain a lower-order, ordinary differential equation model, as an approximation to the governing partial differential equations. The semi-analytical model is analysed to obtain steady-state solutions, bifurcation diagrams and parameter maps in which the different types …

Stability Of Carbon Nanotube Yarn Biofuel Cell In Human Body Fluid, Cheong Hoon Kwon, Jae Ah Lee, Young-Bong Choi, Hyug-Han Kim, Geoffrey M. Spinks, Marcio D. Lima, Ray H. Baughman, Seon Jeong Kim

Faculty of Engineering and Information Sciences - Papers: Part A

High performance with stability, easy-handling electrodes, and biofluid-flow controllable system with mechanical strength of the biofuel cell can be considered as the critical issues for future human body implant. These three challenges are sufficiently considered by using the effective platform regarding the high surface area from multi-walled carbon nanotube-conducting polymer with poly(3,4-ethylenedioxythiophene), and size/shape dependent flexible yarn electrodes for the implantation of biofuel cell. High power biofuel cell of mW cm-2 range in physiological condition (low glucose-containing phosphate buffered saline solution and human blood serum) controlling the stirring degree is also first demonstrated for future implantation in this study. Biofuel …

Stability Enhancement Of Magnetic Levitation Ball System With Two Controlled Electomagnets, Hai Huang, Haiping Du, Weihua Li

Faculty of Engineering and Information Sciences - Papers: Part A

Magnetic levitation ball system is a highly nonlinear and unstable system. If the system is linearised at the equilibrium point, the achievable balance range of the magnetically levitated ball is very short with one electromagnet. This paper presents an improved magnetic levitation ball system, that contains two electromagnets, where one electromagnet is set above the magnetic ball for pulling, and another one is set under the magnetic ball for pushing. In addition, this paper applies a 2-DOF (degree-of-freedom) PID (proportional-integral-derivative) controller instead of 1-DOF PID for the control of the two electromagnets so that they can work corporately to make …

Dollarisation: Any Possibility In Nigeria And Its Effects On Economic Management And Exchange Rate Stability, E.A. Abolo

Economic and Financial Review

This paper examined various type and definitions of dollarization, the possibility of dollarization in Nigeria and its effect on economic management. The author emphasized on unofficial dollarization and its benefits and costs.

Phenylalanine Control Predicts Cognition And White Matter Integrity In Children With Phenylketonuria, Anna Marie Hood

Arts & Sciences Electronic Theses and Dissertations

No abstract provided.

Influence Of The Nonlinear Gain On The Stability Limit Of A Semiconductor Laser With Optical Feedback, Yuanlong Fan, Yanguang Yu, Jiangtao Xi, Huiying Ye

Faculty of Engineering and Information Sciences - Papers: Part A

This paper presents the results revealing the influence of the nonlinear gain on the stability limit of a semiconductor laser (SL) with external optical feedback (EOF). A new system determinant is derived from the original Lang and Kobayashi (L-K) equations. By making analysis on the locus of the roots of the system determinant, the stability limit of the system is obtained, from which a number of important and interesting phenomenon revealed by the nonlinear gain is uncovered. The correctness of results is verified by numerical simulations.

A Novel Membrane Distillation-Thermophilic Bioreactor System: Biological Stability And Trace Organic Compound Removal, Kaushalya Wijekoon, Faisal Ibney Hai, Jinguo Kang, William Price, Wenshan Guo, Hao H. Ngo, Tzahi Cath, Long Nghiem

Faculty of Engineering and Information Sciences - Papers: Part A

The removal of trace organic compounds (TrOCs) by a novel membrane distillation-thermophilic bioreactor (MDBR) system was examined. Salinity build-up and the thermophilic conditions to some extent adversely impacted the performance of the bioreactor, particularly the removal of total nitrogen and recalcitrant TrOCs. While most TrOCs were well removed by the thermophilic bioreactor, compounds containing electron withdrawing functional groups in their molecular structure were recalcitrant to biological treatment and their removal efficiency by the thermophilic bioreactor was low (0-53%). However, the overall performance of the novel MDBR system with respect to the removal of total organic carbon, total nitrogen, and TrOCs …

Impact Of Wind Generation Mix On Transient Stability For An Interconnected Power System, Lasantha Meegahapola, Damian Flynn, Jason Kennedy, Tim Littler

Dr Lasantha G Meegahapola

The rapid growth of wind generation in many European countries is pushing power systems into uncharted territory. As additional wind generators are installed, the changing generation mix may impact on power system stability. This paper adopts the New England 39 bus system as a test system for transient stability analysis. Thermal generator models are based on a likely future plant mix for existing systems, while varying capacities of fixed-speed induction generators (FSIG) and doubly-fed induction generators (DFIG) are considered. The main emphasis here has been placed on the impact of wind technology mix on inter-area oscillations following transient grid disturbances. …

Impact On Transient And Frequency Stability For A Power System At Very High Wind Penetration, Lasantha Meegahapola, Damian Flynn

Dr Lasantha G Meegahapola

This paper analyzes the impact on transient and frequency stability for a power system at very high wind penetration (40% wind). Wind penetration is based on the doubly-fed induction generator (DFIG), and a systematic approach has been adopted for wind power integration. A sensitivity analysis has been carried out for each wind integration scenario and for different wind generator loading conditions. A range of fault locations has been selected for stability analysis based on the proximity to synchronous generation and wind farms. The analysis has shown that transient stability performance is subject to fault location in the network, especially when …

Transient Stability Analysis Of A Power System With High Wind Penetration, Lasantha Meegahapola, Damian Flynn, Tim Littler

Dr Lasantha G Meegahapola

This paper presents transient stability analysis for a power system with high wind penetration. The transient stability has been evaluated based on two stability criteria: rotor angle stability and voltage stability. A modified IEEE-14 bus system has been used as the main study network and simulations have been conducted at several wind power penetration levels, defined as a fraction of total system generation. A wide range of scenarios have been presented based on the wind farm voltage at the point of connection, i.e. low voltage (LV) distribution level and high voltage (HV) transmission level, and the type of wind generator …

Active Use Of Dfig Based Wind Farms For Transient Stability Improvement During Grid Disturbances, Lasantha Meegahapola, Damian Flynn, Jason Kennedy, Tim Littler

Dr Lasantha G Meegahapola

The doubly-fed induction generator (DFIG) now represents the dominant technology in wind turbine design. One consequence of this is limited damping and inertial response during transient grid disturbances. A 'decoupled' strategy is therefore proposed to operate the DFIG grid-side converter (GSC) as a static synchronous compensator (STATCOM) during a fault, supporting the local voltage, while the DFIG operates as a fixed-speed induction generator (FSIG) providing an inertial response. The modeling aspects of the decoupled control strategy, the selection of protection control settings, the significance of the fault location and operation at sub- and super-synchronous speeds are analyzed in detail. In …

Capability Curve Based Enhanced Reactive Power Control Strategy For Stability Enhancement And Network Voltage Management, Lasantha Meegahapola, Tim Littler, Sarath Perera

Dr Lasantha G Meegahapola

Reactive power has become a vital resource in modern electricity networks due to increased penetration of distributed generation. This paper examines the extended reactive power capability of DFIGs to improve network stability and capability to manage network voltage profile during transient faults and dynamic operating conditions. A coordinated reactive power controller is designed by considering the reactive power capabilities of the rotor-side converter (RSC) and the grid-side converter (GSC) of the DFIG in order to maximise the reactive power support from DFIGs. The study has illustrated that, a significant reactive power contribution can be obtained from partially loaded DFIG wind …

Stability And Change In Women's Personality Across The Life Course, Carly D. Lebaron

Theses and Dissertations

The current study sought to examine change and stability of personality in a sample of women over the course of 35 years. Existing research is mixed regarding whether or not personality changes over time or whether it remains stable. Using a sample of 187 women tracked over four time points (approximately 10 years between each time point), change and stability in openness to experience, extraversion, and neuroticism was tested using a stacked multilevel growth curve analysis. Four life course events (transition to parenthood, change in marital status, wife entering or leaving the workforce, and husband retiring) were added as predictors …

The Effect Of Institutional Veto Players On Education Policy Reform In The United States And Finland, Isham C. Hewgley Iv

Chancellor’s Honors Program Projects

No abstract provided.

Future Stability In The European Union: Realism, Constructivism, And Institutionalism, Maya Swisa

Claremont-UC Undergraduate Research Conference on the European Union

No abstract provided.

The Kosovo War: Nato’S Opportunity, Sead Osmani

Claremont-UC Undergraduate Research Conference on the European Union

No abstract provided.

Switching Radical Stability By Ph-Induced Orbital Conversion, Ganna Gryn'ova, David L. Marshall, Stephen J. Blanksby, Michelle L. Coote

Faculty of Science, Medicine and Health - Papers: part A

In most radicals the singly occupied molecular orbital (SOMO) is the highest-energy occupied molecular orbital (HOMO); however, in a small number of reported compounds this is not the case. In the present work we expand significantly the scope of this phenomenon, known as SOMO–HOMO energy-level conversion, by showing that it occurs in virtually any distonic radical anion that contains a sufficiently stabilized radical (aminoxyl, peroxyl, aminyl) non-π-conjugated with a negative charge (carboxylate, phosphate, sulfate). Moreover, regular orbital order is restored on protonation of the anionic fragment, and hence the orbital configuration can be switched by pH. Most importantly, our theoretical …

Independent Control Of Limb Force Underlies Stability During Voluntary Head Movements In Standing Humans, Paul Stapley, Alicia Hilderley, Julia Leonard

Dr Paul J Stapley

Postural stability during voluntary head movements is maintained through the integration of vestibular and neck afferent inputs. These inputs combine to accurately estimate trunk position in space, relative to a turning head. In animals, a loss of vestibular information leads to an active destabilization of balance as neck afferent information is interpreted as a movement of the trunk under a stable head (Stapley et al. 2006).

Capability Curve Based Enhanced Reactive Power Control Strategy For Stability Enhancement And Network Voltage Management, Lasantha Meegahapola, Tim Littler, Sarath Perera

Faculty of Engineering and Information Sciences - Papers: Part A

Reactive power has become a vital resource in modern electricity networks due to increased penetration of distributed generation. This paper examines the extended reactive power capability of DFIGs to improve network stability and capability to manage network voltage profile during transient faults and dynamic operating conditions. A coordinated reactive power controller is designed by considering the reactive power capabilities of the rotor-side converter (RSC) and the grid-side converter (GSC) of the DFIG in order to maximise the reactive power support from DFIGs. The study has illustrated that, a significant reactive power contribution can be obtained from partially loaded DFIG wind …

Addressing Retained Austenite Stability In Advanced High Strength Steels, Elena V. Pereloma, Azdiar A. Gazder, Ilana B. Timokhina

Faculty of Engineering and Information Sciences - Papers: Part A

Advances in the development of new high strength steels have resulted in microstructures containing significant volume fractions of retained austenite. The transformation of retained austenite to martensite upon straining contributes towards improving the ductility. However, in order to gain from the above beneficial effect, the volume fraction, size, morphology and distribution of the retained austenite need to be controlled. In this regard, it is well known that carbon concentration in the retained austenite is responsible for its chemical stability, whereas its size and morphology determines its mechanical stability. Thus, to achieve the required mechanical properties, control of the processing parameters …

The Effect Of Band-Tail States On The Thermal Stability Of The Infrared Stimulated Luminescence From K-Feldspar, Bo Li, Sheng-Hua Li

Faculty of Science, Medicine and Health - Papers: part A

The thermal stability of the infrared stimulated luminescence (IRSL) signal from a sedimentary K-feldspar was investigated using isothermal decay study. It is observed that the isothermal decay of IRSL signal cannot be described using a first-order exponential decay function. Instead, the decay can be well described by considering the presence of band-tail states. Based on the isothermal decay results, a trap depth of ∼1.92 eV was obtained for the IRSL stimulated at 50 °C and the width of the band-tail states was found to be ∼0.37 eV below the conduction band edge. Deeper trap depths (up to ∼2.06 eV) were …

Introducing The Stability Theory In Alliance Politics: The Us, Japan, And South Korea, Rachel Cone

CMC Senior Theses

Analyzing the current state of the United States' alliances with both Japan and South Korea underscores the failure of the traditional alliance theory concepts, realism, liberalism, and constructivism, to adequately describe their continuation. Introducing a concept termed the stability theory to alliance theory explains the current trajectories of the US-Japan and US-South Korea alliances. Stability theory is an extension of the conception of the three aforementioned theories and hedging, and is based in part upon the inherent inertia resisting change, in a long-standing alliance. In setting the stage for the introduction of stability theory, the past, present, and future of …

Effect Of Atmospheric Boundary Layer Conditions On Agricultural Spray Drift, William Tollefson

LSU Master's Theses

Drift of pesticides can be a significant health hazard, particularly in areas where agricultural land is adjacent to a school, retirement home, or other populated area. Off-target drift of pesticides depends on many atmospheric variables, both mechanical and thermal. While non-atmospheric variables, such as applicator nozzle size, height of application, and particle size, can be controlled by the applicator to reduce drift potential, understanding how atmospheric conditions set a framework for drift potential enables applicators to choose to spray when the weather conditions would minimize drift. Specifically, atmospheric stability plays an important role in the near-ground concentration of sprays downwind …

Matching With Incomplete Information, Quingmin Liu, George J. Mailath, Andrew Postlewaite, Larry Samuelson

Cowles Foundation Discussion Papers

A large literature uses matching models to analyze markets with two-sided heterogeneity, studying problems such as the matching of students to schools, residents to hospitals, husbands to wives, and workers to firms. The analysis typically assumes that the agents have complete information, and examines core outcomes. We formulate a notion of stable outcomes in matching problems with one-sided asymmetric information. The key conceptual problem is to formulate a notion of a blocking pair that takes account of the inferences that the uninformed agent might make from the hypothesis that the current allocation is stable. We show that the set of …

Hegemonic Rivalry In The Maghreb: Algeria And Morocco In The Western Sahara Conflict, Michael D. Jacobs

USF Tampa Graduate Theses and Dissertations

Western Sahara has been in a state of political crisis since Spain granted the territory to Morocco and Mauritania in 1975. While Morocco has attempted to incorporate the region within its borders, the Polisario Front (Frente Popular de Liberación de Saguía el Hamra y Río de Oro) has challenged Morocco's claims and proclaimed they are the voice of the indigenous Sahrawi people. Algeria, home to a majority of the Sahrawi refugees, continues to support the Polisario and their goal of independence from Morocco.

Yet, does Algeria have an ulterior motive for their actions beyond support for a displaced people? This …