Digital Commons Network^™

Examining Bicycle And Motorized Vehicle Speeds And Their Relationships In The Context Of Urban Roadways, Jaclyn Sue Schaefer

Dissertations and Theses

This thesis presents a compilation of papers exploring passenger car and bicycle speeds through their interactions with each other and with urban roadway factors.

First, following a concern raised in part of the traffic literature that a large mode shift toward bicycling may cause travel time delays and potentially exacerbate congestion instead of alleviate it unless bicycle lanes are installed, an empirical study detailing how the presence of bicycles on urban roads without bicycle lanes may affect passenger car speeds is presented. Pneumatic tube data from six predominantly low speed, low volume roads in Portland, Oregon were utilized to identify …

Comparison Of Popular Three-Dimensional Printing Materials For Oral And Maxillofacial Surgical Guidance Model, Mohammad Adhitya, Sunarso Sunarso, Abdul Muis

Journal of Dentistry Indonesia

The application of three-dimensional (3D) models in the medical field has become popular. However, the accuracy of 3D models for surgical guidance varies among different materials and 3D printing technologies, such as printing machine usage. Objectives: This study aims to obtain more information about the effect of three different materials printed using a fused deposition material printer from the same digital data source. This study also aims to compare, analyze, and test the materials’ ability. Methods: Each of the filament materials (acetylbutane stearate [ABS], polylactic acid [PLA], and high-impact polystyrene [HIPS]) are printed at two infill densities, their weight, volume, …

A Proposed Pvps Simulink Model Suitable For Direct Coupled Ac Loads., Magdy Mohamed El-Saadawi, Mohamed Adel El-Sayes, M. Al-Hamdan

Mansoura Engineering Journal

In order to develop a PV system, it needs to be either tested in a laboratory based power system model or to be simulated using a simulation program like Simulink. In fact, PV simulations provide good understanding of PV performance. The effect of many PV parameters can be studied and analyzed by simulating the proposed model. This paper presents a proposed PVPS Simulink model suitable for direct coupled PV-AC load system. The model consists of PV generator, DC-DC converter, maximum power point controller, DC-AC inverter and capacitor bank DC link as energy storage system. The DC link is used also …

Hydraulic Calibration Of Pipe Network Model Using An Improved Genetic Technique., A. El-Ansary, Abd El-Razek Zeidan, Mahmoud Mohamed Ahmed El-Gamal, Hamdy Ahmed El-Ghandour

Mansoura Engineering Journal

This research paper exhibits the development and calibration capability of a computer optimization code, called SO-OPTIM. This code copes with several problems concerning water distribution networks which include: new design, rehabilitation, calibration; optimal scheduling of pumps, optimal operation of pump stations in the presence of water elevated tanks, and optimal pressure regulation. These problems are treated using a powerful genetic algorithm optimization technique which consists of a nonlinear objective functions subjected to both linear and non linear constraints. Different modifications were carried out in the simple genetic algorithm. The mentioned code links the optimization model and a hydraulic solver which …

An Efficient Design Methodology For Complex Sequential Asynchronous Digital Circuits, Tomasz Chadzynski

Master's Theses

Asynchronous digital logic as a design alternative offers a smaller circuit area and lower power consumption but suffers from increased complexity and difficulties related to logic hazards and elements synchronization. The presented work proposes a design methodology based on the speed-independent sequential logic theory, oriented toward asynchronous hardware implementation of complex multi-step algorithms. Targeting controller-centric devices that perform data-driven non-linear execution, the methodology offers a CSP language-based controller workflow description approach and the specification of a project implementation template supported by a two-stage design process. First, the CSP layer describes complex speed-independent controller behavior offering better scalability and maintainability than …

The Impact Of Compensation On Engagement And Organizational Tenure: The Moderating Role Of Perceived Organizational Support, Alexis Johnson

Master's Theses

Compensation is a crucial tool utilized by companies to help attract, retain, and motivate employees. However, previous research has overlooked the ways in which compensation might add value to important employee outcomes such as engagement and organizational tenure. Therefore, this present study aimed to close this gap by examining the relationship between pay level and engagement, as well as pay level and organizational tenure. It was hypothesized that higher pay levels would increase the engagement dimensions of dedication, vigor, and absorption in an employee, and that higher pay levels would increase organizational tenure in an individual. It also sought to …

Influence Of Social Circles On User Recommendations, Chaitanya Krishna Kasaraneni

Master's Theses

Recommender systems are powerful tools that filter and recommend content relevant to a user. One of the most popular techniques used in recommender systems is collaborative filtering. Collaborative filtering has been successfully incorporated in many applications. However, these recommendation systems require a minimum number of users, items, and ratings in order to provide effective recommendations. This results in the infamous cold start problem where the system is not able to produce effective recommendations for new users. In recent times, with escalation in the popularity and usage of social networks, people tend to share their experiences in the form of reviews …

Transfer Learning For Hyperspectral Images Utilizing Channel Selection Techniques And Ensemble Methods, Scott Daniel Vogel

Master's Theses

Hyperspectral images contain information from a wider range of the electromagnetic spectrum than natural images which gives them potential for better classification ability. However, hyperspectral datasets are typically small due to the expensive equipment needed to obtain the images, which can limit classification performance. One solution to this problem is transfer learning, in which a model trained on one dataset is reused for a separate dataset. Research has shown that transfer learning between hyperspectral datasets can give improved performance over models without transfer learning when training data are limited. Since extra hyperspectral data are not always available, the solution proposed …

Nuclear Thermal Rocket Engine With A Toroidal Aerospike Nozzle, Kyle Stewart

Master's Theses

This thesis describes the coupling of a nuclear thermal rocket engine with a toroidal aerospike nozzle. The coupling of the two systems consists of two phases. The first of these phases begin with top-level systems and subsystems analysis and design of the new engine. The second phase is the analysis and characterization of the major engine systems through the use of computational fluid dynamics analysis. With the coupling of the nuclear thermal rocket engine with the aerospike nozzle, the new system will be known as the Nuclear Thermal Propulsion System. Due to the uniqueness of coupling a nuclear thermal rocket …

Lstm-Enabled Level Curve Tracking In Scalar Fields Using Multiple Mobile Robots, Kunj J. Parikh

Master's Theses

Autonomous mobile sensor networks are ideal candidates for exploring large-scaleunknown fields with tasks ranging from source seeking, level curve tracking, mapping an unknown field, and many more. In this work, we investigate the problem of level curve tracking in unknown scalar fields using a limited number of mobile sensors. The level curve tracking problem has been studied in many applications such as monitoring the propagation of fire boundaries and the algae blooms. We design and implement a long short term memory (LSTM) enabled control strategy for a mobile sensor network to detect and track the desired level curve. We develop …

Adaptive Learning Technique For Facial Recognition, Rachana Dineshkumar Bumb

Master's Theses

This research describes the adaptive learning technique for facial recognition. It is a common practice in convolutional neural network(CNN) based facial recognition to save its trained result on a large dataset and then load and apply it to ongoing facial recognition tasks. This generally used method lacks adaptation, and the ongoing evolution of new knowledge poses a key technical challenge. In this research, we propose a continued learning technique to incorporate new knowledge derived in each facial recognition process. A positive recognition with confidence score is assigned, and the image associated with this confidence is added to the image dataset …

Supervisor And Coworker Support: Their Moderating Roles On The Relationship Between Diversity Climate Perceptions And Retention-Related Outcomes, Sarah Crouse

Master's Theses

The purpose of the present study was to examine perceived supervisor support and perceived coworker support as moderators of the relationship between diversity climate perceptions and retention-related outcomes (affective commitment, organizational identification, and turnover intentions). Results from a self-report survey of 150 participants showed that neither perceived supervisor support nor perceived coworker support moderated the relationship between diversity climate perceptions and these outcomes. However, the results showed diversity climate perceptions were positively related to perceived supervisor support and perceived coworker support, and independently predicted these retention-related outcomes. Results also showed that perceived supervisor support was more strongly related to these …

Deep Reinforcement Learning Based Path-Planning For Multi-Agent Systems In Advection-Diffusion Field Reconstruction Tasks, Deepak Talwar

Master's Theses

Many environmental processes can be represented mathematically using spatial-temporal varying partial-differential equations. Timely estimation and prediction of processes such as wildfires is critical for disaster management response, but is difficult to accomplish without the availability of a dense network of stationary sensors. In this work, we propose a deep reinforcement learning-based real-time path-planning algorithm for mobile sensor networks traveling in a formation through a spatial-temporal varying advection-diffusion field for the task of field reconstruction. A deep Q-network (DQN) agent is trained on simulated advection-diffusion fields to direct the mobile sensor network to travel along information-rich trajectories. The field measurements made …

Inclusive Leadership, Psychological Empowerment, And Affective Organizational Commitment: A Mediated Model, Mariah Lyn Van Buskirk

Master's Theses

Inclusive leadership has become an important contextual factor to study in organizations given its impact on positive workplace outcomes. However, little is known about the ability of inclusive leadership to affect a wider range of outcomes and the various mediating mechanisms between inclusive leadership and outcomes. Therefore, the present study explored the mediating role of psychological empowerment on the relationship between inclusive leadership and affective organizational commitment. It was hypothesized that inclusive leadership would be positively related to affective organizational commitment both directly and indirectly through psychological empowerment. Results of an online survey from 189 employed individuals showed that inclusive …

A Historical Ecology Of Aridland Springs In Desert National Wildlife Refuge, Nuwu/Nuwuvi (Southern Paiute/Chemehuevi) Ancestral Territory, Nevada, Yarrow Sarah Valentine Geggus

Dissertations and Theses

Aridland springs are among the most threatened ecosystems in the world. Vital to desert ecologies and Indigenous cultures, these complex and individualistic ecosystems have layered histories. To inform management in the changing landscape of Desert National Wildlife Refuge, a 1.6 million acre protected area in Southern Nevada, I conducted a historical ecology study of a sample of ten upland springs. Through a six-part interdisciplinary methodology including interviews, archaeological survey, botanical survey, and archival research, I summarize findings into three broad eras: the Nuwu/Nuwuvi pre-Contact Era, the Settler Era, and the U.S. Fish and Wildlife Service Era.

For millennia, Nuwu/Nuwuvi drank …

Sensitivity Analysis Of An Agent-Based Simulation Model Using Reconstructability Analysis, Andey M. Nunes, Martin Zwick, Wayne Wakeland

Complex Systems Faculty Publications and Presentations

Reconstructability analysis, a methodology based on information theory and graph theory, was used to perform a sensitivity analysis of an agent-based model. The NetLogo BehaviorSpace tool was employed to do a full 2^k factorial parameter sweep on Uri Wilensky’s Wealth Distribution NetLogo model, to which a Gini-coefficient convergence condition was added. The analysis identified the most influential predictors (parameters and their interactions) of the Gini coefficient wealth inequality outcome. Implications of this type of analysis for building and testing agent-based simulation models are discussed.

Distributed Load Testing By Modeling And Simulating User Behavior, Chester Ira Parrott

LSU Doctoral Dissertations

Modern human-machine systems such as microservices rely upon agile engineering practices which require changes to be tested and released more frequently than classically engineered systems. A critical step in the testing of such systems is the generation of realistic workloads or load testing. Generated workload emulates the expected behaviors of users and machines within a system under test in order to find potentially unknown failure states. Typical testing tools rely on static testing artifacts to generate realistic workload conditions. Such artifacts can be cumbersome and costly to maintain; however, even model-based alternatives can prevent adaptation to changes in a system …

Sustainable Impact Region As An Introduction To Architectural Education Development (A View And Practical Study On Mansoura Department Of Architectural Engineering Strategy)., Alaa Shams Aldein Aleshi

Mansoura Engineering Journal

Although agreeing that developing architectural education is a must to suit future thinking in Egypt and the need to activate concepts that have become contemporary as Sustainability and Globalization. However, developing ways are still points of contention between different trends of architectural education and dealing with them as independent points that have their own architectural style and architectural culture. The research represents a neutral vision that studies how to achieve sustainabiliiy from two main axes: cultural privacy without detachment.:Region of educational impact in universities 2:communicating with modern architectural thoughts communication This research aims to: • Confirming local universities role in …

Chse Guidelines As One Of The Government'sefforts To Prevent And Control The Novel Coronavirus Disease (Covid-19) In The Implementation Of Indonesia Mice Industry, Mahadewi Mahadewi

Journal of Indonesian Tourism and Policy Studies

The COVID-19 pandemic that has hit Indonesia has helped change public awareness of cleanliness, health, safety and environmental sustainability (CHSE). This awareness also affects the improvement of the quality of services and products in the world of Indonesian tourism. Economic recovery affected by COVID-19 in the tourism sector, especially in the industry for organizing Meetings, Incentives, Conventions and Exhibitions (MICE) activities, needs to be done with due observance of government regulations and international guidelines regarding the implementation of MICE activities. There needs to be a practical guide for the tourism industry, especially MICE in order to prepare activities, products and …

Three Conceptions Of Corporate Crime (And One Avenue For Reform), Miriam H. Baer

Law and Contemporary Problems

No abstract provided.

The Government’S Prioritization Of Information Over Sanction: Implications For Compliance, Veronica Root Martinez

Law and Contemporary Problems

No abstract provided.

The Body Corporate, Mihailis E. Diamantis

Law and Contemporary Problems

No abstract provided.

The Application Of The Guide Code Of Conduct For Muslim Tour Leadercommunities During The Covid19 Pandemic, Mochamad Fajar Akbar, Asep Syaiful Bahri

Journal of Indonesian Tourism and Policy Studies

Research on the application of the guide code of conduct for Muslim tour leader communities during the Covid19 pandemic is to determine the strategy for implementing the guide code of ethics for Muslim tour leader communities during the Covid19 pandemic. The sample in this study is the Muslim tour leader community, amounting to 200 respondents. The data analysis method used in this research is descriptive method using Importance performance analysis. Based on the survey results, there is an average value of the level of importance is 8.19 and the average value of the level of need is 7.39. This indicates …

Cat Tracks – Tracking Wildlife Through Crowdsourcing Using Firebase, Tracy Ho

Master's Projects

Many mountain lions are killed in the state of California every year from roadkill. To reduce these numbers, it is important that a system be built to track where these mountain lions have been around. One such system could be built using the platform-as-a-service, Firebase. Firebase is a platform service that collects and manages data that comes in through a mobile application. For the development of cross-platform mobile applications, Flutter is used as a toolkit for developers for both iOS and Android. This entire system, Cat Tracks is proposed as a crowdsource platform to track wildlife, with the current focus …

I Already Belong: Immigrant-Origin College Students’ Persistence, Kerrie Devries, Wayne Harrison, Jonathan Santo

Psychology Faculty Publications

Children of immigrant and refugee populations are increasing in the U.S. but are underrepresented at U.S. universities. Collectivistic, immigrant-origin students may be less responsive to current best practice integration approaches, which focus on institutional Academic and Social Integration as necessary for college persistence. Homoginizing U.S.-origin and immigrant-origin students in persistence strategies, particularly institutional Social Integration, may not take into consideration culture-of-origin differences, such as the degree of ongoing family connectedness, that motivate students toward college persistence. Antecedents of college intentions to persist were compared for immigrant-origin students (N=87) and U.S.- origin students (N=122) at a midwestern university. Model comparisons revealed …

The Modern Pay For Play Model: Laws That Protect Student-Athletes' Fundamental Right To Commercialze Their Names, Images, And Likeness, Paul A. Schwabe Jr.

Brooklyn Journal of Corporate, Financial & Commercial Law

In O’Bannon v. NCAA, the United States District Court for the Northern District of California entered a permanent injunction against the National Collegiate Athletic Association enjoining the collegiate sports governing body from enforcing limits on student-athlete compensation derived from the use of their name, images, and likenesses rights. The court concluded that NCAA rules unreasonably restrained trade in violation of the Sherman Anti-Trust Act, however, neither the court nor the NCAA laid out a framework for lawfully implementing these new economic rights to student-athletes. Since that ruling, only one state’s legislature, California, has attempted to pass legislation to prevent the …

Consumers' Declining Power In The Fintech Auto Loan Market, Pamela Foohey

Brooklyn Journal of Corporate, Financial & Commercial Law

Automobiles have become part of America’s infrastructure. For most people, having access to a car is crucial to their livelihoods and they will take on significant amounts of debt to purchase vehicles. Auto debt is unlike any other consumer debt, both in its structure, which allows creditors to easily seize collateral, and in its lack of regulation. The unique and lucrative nature of auto debt has not gone unnoticed by lenders or by companies leveraging fintech to offer people new ways to purchase cars and car loans. This Article assesses the evolving marketplace for auto sales, leasing, and loans to …

Alternative Data And Insider Trading: Are Investment Managers Assleep At The Wheel On Big Data Use?, William Montemarano

Brooklyn Journal of Corporate, Financial & Commercial Law

The rapid rise of “big data” has transformed the way that professional investors make investment decisions. In addition, the intersection of the United States federal securities laws and the use of “big data” to inform securities trading lies in uncharted waters. The nuanced and factually-dependent securities laws are far behind industry practices, and the Securities and Exchange Commission (SEC) and the Department of Justice (DOJ) have remained largely silent on the issue to date. This Note argues that this combination of murky laws and rapidly evolving business practices gives rise to legal and regulatory risk, and that investment managers leveraging …

Comparative Evaluation Of Apical Extrusion Debris And Irrigant During Calcium Hydroxide Removal And Endodontic Instrumentation Using Three Types Of Instrumentation Systems, Selen İnce Yusufoğlu, Esma Saricam

Journal of Dentistry Indonesia

Many root canal preparation techniques and instruments produce apically extruded materials to a certain extent depending on the preparation system adopted. The extrusion of debris from the apical foramen during chemomechanical preparation may cause postoperative pain and failure of endodontic treatment. Objective: This study evaluates the differences in the apical extrusion of debris and calcium hydroxide (CH) during endodontic instrumentation by using Reciproc Blue (RB), WaveOne Gold (WOG), and F6 Skytaper (F6). Methods: Six experimental study groups (n = 13) were established. The root canal procedures for all groups were prepared with different methods: Group I: One Shape (OS) instrumentation, …

Simulation Of Mosul Dam Break Using Finite Volume Method, Ayhan H. Saleem, Jowhar R. Mohammad

Polytechnic Journal

Mosul dam is an earth-fill embankment located north of Iraq on the Tigris River forming a reservoir with 11.11 km3 water storage capacity which is the largest dam in the country. The dam is built on a rock bed foundation, in which the dissolution process is dynamic in the zone where gypsum and anhydrite layers present. During the construction development seepage locations were found in the dam foundation and the grouting process is in progress until now to control this problem. Therefore, the possibility of the Mosul dam break is highlighted by previous studies. In this research, a FORTRAN code …