Digital Commons Network^™

Coastal Bathymetry Of The United Arab Emirates Using Satellite-Based Remote Sensing Data, Naser Salem Aldahmani

Theses

Bathymetry is the study of the bed under the water's surface, giving us the water's depth. The Thesis will be about studying the coastal area of the UAE by using satellite images that can help access large regions of the UAE Coast. Also, by using a history of 5 years of satellite visible bands and NIR images, we can see the change of depth near the coastal. The benefit of that study will help to build ship baths through shallow water and to go in and out of ports of UAE. Early warnings of the sea level increasing near the …

Development Of Guidance, Navigation, And Control Systems For Multi-Spacecraft Assembly In Proximity Operations, Mohammed Ayman Atallah

Theses

This thesis presents the development of Guidance, Navigation, and Control (GNC) algorithms for multi-spacecraft assembly in proximity operations. A 3-DOF mathematical model of spacecraft relative translational motion is derived using the Euler-Lagrange method. Additionally, a 6-DOF mathematical model of spacecraft relative translational and rotational motion is derived using the twistor method, with consideration for the kinematic coupling effect. A new Linear Time-Invariant (LTI) model is developed based on the twistor model, which is utilized in the design of the GNC systems. Both LTI Model Predictive Control (MPC) and Linear Time-Varying (LTV) MPC algorithms are employed to develop Guidance and Control …

Risk Factors For Eating Disorders Among Uae University Students: The Role Of Family Dysfunction And Attachment Styles, Aya Jaber Dandachi

Theses

A topic that is highly researched nowadays in the UAE is eating disorders (EDs). They are characterized by a persistent disturbance of eating-related behaviors that can result in altered consumption of food. Literature has suggested that there are several factors that can make an individual vulnerable to EDs, including family dynamics and attachment styles. This thesis is an attempt to examine the impact of family dynamics and early attachment on mental health wellbeing. The main objective is to examine how family dysfunctional concepts (rigid, chaotic, enmeshed, and disengaged) and attachment styles (close, dependent, and anxious) can be potential risk factors …

Radio Emission From Low Mass Active Galactic Nuclei, Ammara Aftab

Theses

Massive black holes of a few million to billion solar masses lurk at the centers of the most present-day massive galaxies but their origin is still unknown. The low mass galaxies (M* ~ 3x10⁹ Mʘ) hosting black holes with masses ranging from 10³ to 10⁵ Mʘ are ideal laboratories to test the models of black hole formation and they may help in understanding the co-evolution of central black holes with their host galaxies. In this thesis, we have developed a detailed theoretical model/framework to estimate the radio emission from low-mass active galactic nuclei (AGN). We also compute …

Selection Of Natural Surfactants For Possible Use In Improving Oil Recovery Of Carbonate Oil Reservoirs, Hiba Hachem Limam

Theses

Middle East petroleum industry is currently searching for the most suitable enhanced oil technique to improve the oil recovery from local oil reservoirs. The biggest challenge for the application of enhanced oil recovery (EOR) in the Middle East is the harsh environment (high salinity and temperature). Surfactant (synthetic or natural) is one of the EOR major players considered for application in the Middle East. However, synthetic surfactants have several drawbacks, such as economically unattractive and environmental impacts. This study investigated the possible use of natural surfactant extracted from the leaves of three types of plants, namely Aloe Vera, Tetraena qatarensis, …

Real-Time Object Tracking With Yolov5 And Recurrent Network On A Hardware Platform, Mohammed Abdulhakeem Alameri

Theses

The advancement of computer vision, particularly in the domain of object tracking, involves the integration of conventional feature-based approaches with contemporary deep learning methodologies. The initial phase of object detection plays a fundamental role in generating prospective objects for further tracking, and its level of success has a direct influence on the overall effectiveness of the tracking process. Many of the methods used to generate candidate objects start with object detection, and then object tracking algorithms are developed to link the object instances together to create the trajectories.
The primary difficulties in object tracking pertain to the establishment of reliable …

Parental Participation In An Esl Take-Home Book Bag Program For A Second Grade Class In Al Ain, Dina Ahmad Al Khawaldeh

Theses

The purpose of this current study is to explore Emirati parents' attitudes toward their involvement in their children's ESL take-home book reading experience. The study aims to explore the reading habits of Emirati families and their perceptions of reading books in English with their children.

This study employed a sequential mixed methods design to gather data from parents and students. A pre-experimental demographic survey was sent to the parents and students to ask about their reading habits at home before experiencing it and after the book reading experience. In addition, a take-home literacy bag activity was disseminated to students and …

Association Of Human Leukocyte Antigen (Hla) Alleles With Atopic Dermatitis In The Uae Population, Suhib Ziad Abu Jwayed

Theses

In the face of the increasing global prevalence of Atopic Dermatitis (AD), a chronic inflammatory skin condition, this thesis seeks to elucidate the genetic underpinnings of AD within the UAE population. Previous literature has underscored the ethnic-specific involvement of Human Leukocytes Antigen (HLA) genetic variations, especially within HLA-A and HLA-DRB1 genes, in the pathogenesis of various skin diseases, including AD. Leveraging this knowledge, our research specifically aimed to investigate the association between these HLA variants and AD in the UAE. Utilizing a comparative approach, the frequencies of HLA-A and HLA-DRB1 variants were assessed in AD patients vis-à-vis a control group. …

Dress-Code Violation Detection In Arabic Regions Using Object Detection Machine Learning Model, Maha Sadat Aghaei

Theses

The dress code violation detection system is crucial for assessing clothing appropriateness in public areas. This study aims to improve this system using advanced computer vision and machine learning techniques to more effectively categorize people's attire in images and videos. To enhance adaptability and create a user-friendly graphical interface for system management and deployment, we have generated a unique dataset from various contexts mix of Western and Arabic clothing. This allows users to interact with graphical components, including the ability to upload images or use live video for clothing detection. Moreover, we have taken privacy concerns into account and implemented …

Measuring Jupiter’S Wind From Cassini Spacecraft Observations, Malak Ali Nazmi

Theses

Jupiter's atmosphere has remarkable features like the Great Red Spot, and strong dynamic events take place in its atmosphere for hundreds of years.
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/="/">We have a set 280 images of Cassini spacecraft December 2000 of southern and northern hemisphere of Jupiter planet which were taken by four distinct filters with a wide range of wavelengths extending from 455 nm to 889 nm to study the Great Red Spot dynamics and measure the velocity fields using Correlation Imaging Velocimetry technique. To understand the mechanism of energy transfer between eddies and jets which governs Jupiter's atmosphere for a long time, …

Development Of Unsaturated Polyester Resin Mortar Utilizing Industrial Wastes, Fatema Ahmed Alahmed

Theses

In recent years, polymer mortar (PM) has played a crucial role in the modern construction industry. It is gaining recognition as an effective and quick repair material in construction applications because it has several benefits over traditional Portland cement concrete. Various types of polymer binders, such as unsaturated polyester resin (UPR), have been used in these materials owing to their low cost, excellent strength, high workability, and rapid curing. This study investigates the feasibility of reutilizing locally available waste in the production of UPR-based polymer mortar, which facilitates the development of mortars with less environmental impact. In this study, the …

Bearings Fault Classification Using Machine Learning And Dashboard For Bearing Signals Vibration, Ameirah Mohamed

Theses

Bearings are crucial components for the mechanical system that allows relative motion between two parts. Bearings primarily used to reduce the friction on the component. However, Bearings can fail for several reasons such corrosions, fatigue and electrical damage ..etc .This research aims to develop an accurate prediction model and visualization dashboard to avoid the costly downtimes, high repair cost and enhance the maintenance experience for workers and engineers. The data used in this research is CASE WESTERN RESRVE UNIVERSITY (CWRU) bearing data set. The data set contains signals vibration readings of bearings that can used for bearings fault detection. The …

Learning To Learn From Sparse User Interactions, Krishna Prasad Neupane

Theses

The ability to learn from user interactions provides an effective means to understand user intent through their behaviors that is instrumental to improve user engagement, incorporate user feedback, and gauge user satisfaction. By leveraging important cues embedded in such interactions, a learning system can collect key evidence to uncover users’ cognitive, affective, and behavioral factors, all of which are critical to maintain and/or increase its user base. However, in practical settings, interactive systems are still challenged by sparse user interactions that are also dynamic, noisy, and highly heterogeneous. As a result, both traditional statistical learning methods and contemporary deep neural …

The Psychological Motivations Of Attendees To Engage And Share Their Event Experiences, Denise Matoushek

Theses

Social media usage, content creation and consumption has increased steadily throughout the years. This facet has impacted the event industry and their audiences’ expectations of immersive and high-end digital opportunities with the goal of memory capturing and user generated content. In addition to providing digital event opportunities, meeting audiences on their psychological level when in attendance at events heightens the likelihood of revisits, word-of-mouth, and social media sharing. The two main psychological aspects to study are that of belonging and internal motivation. In the event field, belonging is the feeling or association to a community of peers and internal motivation …

Rooted In Meaning: Plant Iconography On Nasca Polychrome Ceramics, Amanda G. Lange

Theses

This thesis explores the Nasca use of plant iconography as part of their polychrome ceramics produced at the end of the Early Horizon around 100 BCE to those produced in the beginning and middle of the Early Intermediate Period circa 1to 450 CE. During this time the religious site of Cahuachi was in use as a pilgrimage center as well as the production center of polychrome pottery. The Nasca created their colorful ceramics here to distribute to visiting pilgrims during times of festival or ritual. The culture’s iconography has been studied extensively, most of which focuses on the forms of …

Shōjo, Kawaii, And Yōkai Iconographies In Chiho Aoshima's Strawberry Fields And How They Relate To Contemporary Gender Dynamics In Japan, Neo Sim Yee

Theses

This paper analyzes the shōjo, kawaii, and yōkai iconographies in Chiho Aoshima’s digital painting Strawberry Fields and examines how they relate to contemporary gender dynamics and anxieties in Japan. The painting bears the artist’s distinctive, characteristic style, which includes elements that are childlike and monstrous, cute and dark. The work, rich in layered context, simultaneously reminisces about the innocence and freedom of adolescence, and critiques the prominent the unequal, rigid, and highly restrictive gender roles dictated by the Japanese patriarchal system. The distinct two halves of Strawberry Fields depict the dichotomous vision of Japanese women—innocent and girly versus defiant and …

Pseudo-Dionysius’S Response To Neoplatonism: An Exploration Of Pseudo-Dionysius’ Historical Context And His Source Utilization In “The Mystical Theology”, Mhanna Joseph Kallas

Theses

This research delves into the writings of Pseudo-Dionysius the Areopagite, particularly his blending of Neoplatonic ideas with Christian theology in his work "The Mystical Theology." Pseudo-Dionysius, a significant figure in Christian mysticism, draws upon a diverse array of sources to articulate his theological vision. An in-depth analysis of "The Mystical Theology" and its foundational texts reveals Pseudo-Dionysius's aim to align Neoplatonic apophatic strategies with Christian thought, suggesting that the essence of many Neoplatonic theological concepts is either inherent in or can be extrapolated from Christian doctrine. By shedding light on Pseudo-Dionysius's strategic selection and adaptation of various sources, this study …

Perceived Speed In Transitions Between Neutral And Chromatic Illumination, Abby Weymouth

Theses

Lighting that gradually changes over time, also known as dynamic lighting, is an integral part of our experience of illumination. Daylight is a prime example of this, and LED technology has led to its increasing use in artificial lighting as well. However, perception of dynamic lighting has not been extensively studied. Previous work has focused exclusively either on daylight illumination or relatively chromatic illumination, and most research examined lighting transitions at speeds near detection thresholds. Past studies have found that the perception of illumination changes is far from uniform across color space. Perception of transitions has been found to vary …

Fabrication Of Diffraction Grating Prototype Solar Sails For In-Space Propulsion, Qing Xian Wang

Theses

Solar sails offer advantages over rockets for heliocentric navigation by utilizing sunlight as an unlimited source of radiation pressure for propulsion. This eliminates the need to carry fuel and allows the sail craft to reach destinations that are difficult or impossible for rockets to reach. Solar sails provide a small but continuous acceleration that produces large changes in the sail craft velocity over time. A conventional solar sail makes use of the law of reflection to achieve in-space propulsion. By tilting the reflective sail away from the sunline, an optimal angle of reflection is achieved, generating a transverse force for …

Multimodal Ai For Prediction Of Distant Metastasis In Carcinoma Patients, Isaac Olatunji

Theses

Metastasis of cancer is directly related to death in almost all cases, however a lot is yet to be understood about this process. Despite advancements in the available radiological investigation techniques, not all cases of Distant Metastasis (DM) are diagnosed at initial clinical presentation. Also, there are currently no standard biomarkers of metastasis. Early, accurate diagnosis of DM is however crucial for clinical decision making, and planning of appropriate management strategies. Previous works have achieved little success in attempts to predict DM from either clinical, genomic, radiology, or histopathology data. In this work we attempt a multimodal approach to predict …

Optimal Entanglement And Spin Squeezing In Collections Of Two-Level Atoms, Emily Finson

Theses

Spin squeezing is a bulk, non-classical effect that can occur in spin systems and occurs when fluctuations between two observables are redistributed while still maintaining the minimum uncertainty product. Planar-quantum squeezing is a similar phenomenon where there are decreased spin variances in two orthogonal spin components. In the work that follows, we consider specifically the realization of a spin-j system, a collection of N = 2j two-level atoms, in accordance with the famous Dicke model for such a system. Both spin and planar-quantum squeezing act as entanglement witnesses. This means that where we observe spin squeezing we should also observe …

Self-Assembling Peptide-Based High-Relaxivity Prostate-Cancer-Targeted Mri Contrast Agents, Andrew O'Brien

Theses

Magnetic Resonance Imaging (MRI) is a widely used, highly effective imaging method for diagnosing cancer and guiding treatment. MRI contrast agents enhance image quality, with higher relaxivity (r1) contrast agents providing the best utility. Attaching a cancer-specific-targeting group enhances the image further. Therefore, a high-relaxivity cancer-targeted contrast agent is a highly desirable tool for diagnosis and treatment. Our group previously synthesized a peptide-based MRI contrast agent with the Ala(Gd-DO3A) chelator that targeted the prostate cancer biomarker PSMA using the small-molecule ligand DCL. While this agent displayed nominal relaxivity, it was serendipitously found that the relaxivity of a synthetic intermediate containing …

Psychosocial Predictors Of Cosmetic Surgery Acceptance Among Young Adult Women In The Uae. The Role Of Selfie Behavior, Narcissism And Religiosity: A Cross-Sectional Study, Amna Ahmad Alsadani

Theses

Cosmetic surgery is prevalent in the UAE and has been linked to negative psychological and physical consequences. The present study investigates psychosocial factors expected to predict an acceptance of cosmetic surgery among young adult women in the UAE. It was hypothesized that high selfie behavior, high narcissism, and low levels of religiosity would have a positive association with an interest in cosmetic surgery. The factors that motivate people to undergo cosmetic surgery were assessed using the 15-item Acceptance of Cosmetic Surgery Scale. Selfie behavior was examined using two questions derived from previous research. Narcissism was assessed using the 16-item Narcissistic …

A Smart Chatbot System For Digitizing Service Management To Improve Business Continuity, Asraa Mohammed Albeshr

Theses

Chatbots, also called digital systems that require a natural language-based interface for user interaction, are increasingly being integrated into our daily lives. These chatbots respond intelligently to voice and text and function as sophisticated entities. Its functioning includes the recognition of multiple human languages through the application of Natural Language Processing (NLP) techniques. These chatbots find applications in various areas such as e-commerce services, medical assistance, recommendation systems, and educational purposes. This reflects the versatility and widespread adoption of this technology. AI chatbots play a crucial role in improving IT support in IT Service Management (ITSM) for better business continuity. …

Impact Of Covid-19 On Security Vulnerabilities Of Learning Management Systems: A Study Towards Security And Sustainability Enhancement, Souheil Abdel-Latif Akacha

Theses

The rapid adoption of Learning Management Systems (LMSs) like Moodle, Chamilo, and Ilias became essential for online education due to the Coronavirus Disease 2019 (COVID-19) pandemic, revolutionizing online learning while exposing security vulnerabilities. This thesis explores security concerns within these LMSs across different pandemic periods. By analyzing existing patches, security measures, and emerging cybersecurity technologies, recommendations are formulated to enhance LMS security against evolving cyber threats, providing actionable insights for educational institutions to ensure secure online education continuity. The numerical findings highlight the increasing need for proactive security measures in Moodle, the fluctuating nature of vulnerabilities in Chamilo, and the …

Analysis Of Cycle 2 Science Textbooks For Representation Of Elements Contributing To Quality Science Textbooks As Learning Resources, Sohani Mehzabin Prova

Theses

Science textbooks are a valuable resource for both students and teachers. They hold a significant role in students' learning of science. Most science teachers in the United Arab Emirates (UAE) rely on science textbooks as the foundation for their teaching. However, until now, limited research has been conducted to assess the appropriateness of science textbooks prescribed by the Ministry of Education in the UAE. Therefore, this study aims to evaluate the representation of elements contributing to the suitability of cycle 2 (grades 5 to 8) science textbooks as learning resources as prescribed by the Ministry of Education of the UAE. …

Heat Transfer Performance Of Single-Phase Circular Heat Sink With Micro Pin-Fin, Mouza Abdulla Al Shamsi

Theses

This thesis presents a numerical study of laminar forced convection in a novel design of a microscale single phase water cooled circular heat sink with pin fins developed and analyzed to serve as a miniaturized cooling system. The developed heat sink in this study aims to achieve efficient heat dissipation from high electronics integration that generates high heat flux and non-uniform temperature distribution, which leads to the reduction of life and reliability of electronic devices.

Numerical analysis of ten different configurations of the circular heat sink has been carried out for the heat flux of 100 W/cm2 at range of …

Hydrometeorological Analysis Of A Flooding Event In Fujairah Emirate, Ahmad Abed Rabu Albreiki

Theses

This thesis conducts an extensive hydrological examination of a flooding event in Fujairah emirate, a partially dry landscape distinguished by its exceptional land utilization and soil composition. This research reveals crucial knowledge about how Fujairah Emirate basins behave hydrologically by fusing land use, land cover classification, hydrological soil groups, weighted Curve Number (CN), maximum discharge computations, and return period evaluations. One fundamental discovery is the significant differences in CN values across the region's basins. These differences highlight the powerful influence of land use and soil composition on the likelihood of water runoff. Basins with urbanization and impermeable surfaces tend to …

Examining The Parallel Mediating Effect Of Emotion Dysregulation And Eating Beliefs In The Association Between Low Self¬-Esteem And Binge Eating Behaviours, Farah Al Mohammed

Theses

Research in the United Arab Emirates (UAE) around the causes and non-pharmacological treatment options of binge eating behaviours and other eating disorders is limited. Moreover, given the documented increase in binge eating behaviours which, in turn, is associated with two additional eating disorders (i.e., binge eating disorder and bulimia nervosa), there is an urgent need to understand the factors that are implicated in the causation and maintenance of binge eating behaviours in the UAE. A comprehensive understanding of these factors will assist psychotherapists and other mental health professionals in tailoring the interventions that they provide in the treatment and management …

Ai Application In Architecture In Uae: Developing And Testing Advanced Optimization Model For A Parametric Shading Structure As A Retrofit Strategy Of A Midrise Residential Building Façade In Downtown Abu Dhabi, Anwar Ghaleb Ahmad

Theses

Artificial intelligence is a phenomenon that influences every aspect of our lives. AI applications have already started to change the methods in different disciplines. Architecture is one of the disciplines that is highly affected by the developments of AI technologies. With the United Arab Emirates heading to employ new technology to lead the country and region development, it is important to explore and develop the application of AI in the strategic disciplines of the country in which the built environment is essential. This study aimed to develop and evaluate an advanced model script (to be used as a tool) using …