Digital Commons Network^™

An Intelligent Framework For Efficiently Utilizing Distributed Heterogeneous Resources To Improve Hpc Application Performance, Moiz Arif

Theses

High-Performance Computing (HPC) workloads are being widely used to solve complex problems in scientific applications from diverse domains, such as weather forecasting, medical diagnostics, and fluid dynamics simulation. HPC workloads are traditionally executed on baremetal HPC systems, containers, functions, or as workflows or ensembles. These workloads consume a large amount of data and have large memory and storage requirements that typically exceed the limited amount of main memory and storage available on an HPC system. HPC workloads such as deep learning (DL) are executed on platforms such as TensorFlow or PyTorch, are oblivious to the availability and performance profiles of …

Transfer Learning Across Domains And Sensing Modalities, Chowdhury Sadman Jahan

Theses

Transfer learning facilitates the training of a deep learning (DL) model with limited or no labeled data, by initializing the network parameters using a similar model already trained on a different but related dataset or task. This dissertation examines two special cases of transfer learning for image classification tasks: cross-modal supervised learning, and cross-domain unsupervised adaptation. This dissertation proposes to apply cross-modal transfer learning to guide the training process of a DL model on Synthetic Aperture Radar (SAR) images via knowledge distillation from a DL model trained on corresponding electro-optical (EO) images. Furthermore, this approach explores class-balanced sampling strategies and …

From Ordinary To Extraordinary: Using Storytelling To Reveal The Hidden Histories Of Objects And Enhance Meaning Making In A Living History Village, Jill Poppenheimer Johnson

Theses

Objects without a narrative are simply things. By contrast, an object with a story can be used as a vehicle for a museum to open dialogues with visitors about the people of that time period, how they lived their lives, and what social aspects influenced them. The story of an object, what makes it different from hundreds of others just like it, can change it from ordinary to extraordinary and be used as a powerful learning tool by helping the audience to create connections and make meaning of what they are seeing and experiencing. This thesis explores the relationships between …

Prevalence And Risk Factors Of Hikikomori In Young Adults In The Middle East, Harshil Paresh Shah

Theses

Hikikomori, a form of severe social withdrawal that can occur without the presence of any other psychological disorder, was once thought to be a Japanese culture-bound phenomena. However, studies have emerged from several parts of the world showing that this may be a global issue. Extant literature suggests associations between hikikomori and behavioral addictions such as gaming addiction and Problematic Social Media Use (PSMU). Since there is a relative paucity of research examining this phenomenon in the Middle Eastern context, this study aimed to determine the prevalence and risk factors of hikikomori in young adults of the Middle East. It …

Improving Early Design Processes With The Use Of Bim And Vr Technologies In The Gcc Construction Industry, Mohamed Wahid Mohamed

Theses

The early stages of construction projects play a crucial role in determining the outcome of the entire project life cycle. However, conventional early design practices have been facing significant challenges and limitations in recent times. These challenges include a lack of coordination among various disciplines, communication gaps, and poor decision-making. Unfortunately, these challenges often lead to increased costs, project delays, and change orders. To tackle these challenges, it is essential to adopt the latest technological advancements in the construction industry. This is especially important given the complexity of modern construction projects and the rapid construction growth. One of the most …

Evaluating The Impact Of Hybrid Ventilation Strategies On Reducing The Cooling Load And Achieving Thermal Comfort Of Buildings: Regarding Arid Climate Of Uae, Sheikha A Hmed Al Niyadi

Theses

The hybrid ventilation system has shown considerable potential in managing indoor thermal comfort, preserving indoor air quality, and minimizing energy usage. This is achieved by integrating natural and mechanical ventilation. When natural ventilation is unfeasible, the system smoothly transitions to mechanical ventilation to uphold optimal indoor thermal comfort levels. However, the application of this system in extremely arid regions poses a challenge due to the high energy consumption linked to air conditioning and cooling during the summer. In these areas, air conditioning and cooling alone represent approximately 60% of urban energy consumption. This study aims to assess the viability of …

“Jí'Dë'Ö:H” Means Bird: Decolonizing The Modern Birding Experience Through The Inclusion Of Narratives From Indigenous Communities Of Western New York, Angelique M. Armstrong

Theses

This thesis explores the efficacy of combining Indigenous culture narratives with elements of traditional Euro-American field guides to create an alternative form of birding1 field guide. The desired outcome is to create a more inclusive and well-rounded birding experience that celebrates the wisdom and worldview of the people who inhabited the New World before its European “discovery.” The intention is to approach birding from the standpoint of the past and present Caretakers of the land; the members of Indigenous communities whose ancestors lived (and still live) in harmony with the land and living creatures (including birds). It seeks to answer …

Optimization Of In-Vitro Regeneration And Agrobacterium-Mediated Transformation Of Lactuca Sativa, Mohamed Omer Elsiddig

Theses

Lettuce (Lactuca sativa L.) is a leafy vegetable consumed worldwide, mainly as a green salad. It is an herbaceous, self-pollinated annual plant of the family Asteraceae. Lettuce is low in calories, fat, and sodium. It is a good source of fiber, iron, folate, and vitamin C. Improving existing lettuce varieties for water use efficiency, photosynthesis efficiency, salt tolerance, increased nutritional content, etc., is the need of the hour, considering that lettuce is a crop ideal for vertical farming in the UAE.

This study aimed to develop a highly efficient in vitro regeneration and Agrobacterium- mediated transformation protocol for a popular …

Faithful Representation Of Free Groups And Congruent Subgroups Of Sl3(Z), Julius Kurian

Theses

This thesis is concerned with the matrix representation of a free nonabelian group by matrices of size ≥ 3. We proceed from defining an equivalence class and then transitioning to free groups.We discuss in details the group G_n(k) which is the group generated by the matrices filled with first, (second, etc.) column, except for the intersection with the diagonal, and we have ones on the diagonal and zeros at the other places. The filled places are occupied by the same parameter k. An alternative proof for the known fact that G_n(3) is not …

Molecular Geometry Changes In Some Carbonyls And Aromatic Rings Upon Electronic Excitation: Herzberg-Teller Vibronic Coupling And Unitary Duschinsky Rotation, Maryam Yahya Al-Sakkaf

Theses

The common assumption in probing the dynamical motion of molecules is that the molecular electronic activity depends weakly on vibrational coordinates on electronic excitation. Therefore, electron-vibration interaction, which is known as Vibronic Coupling (VC), may be ignored. The Herzberg-Teller theory of Vibronic Coupling (HTVC) is a breakdown of the Born-Oppenheimer Approximation (BOA) since nuclear and electronic degrees of freedom can no longer be separated. The inclusion of a single quantum of a non-totally symmetric vibrational mode changes the overall symmetry of the state and permits the transition. Often, this assumption may be invalid, especially in carbonyl and aromatic compounds. This …

Mapping And Analyzing Urban Growth In The Abu Dhabi Metropolitan Using Geospatial Technologies Integrated With Machine Learning, Hamsa Mohamed Yusuf

Theses

Urbanization is happening at a rate twice the increase in population on a worldwide scale. This has great environmental and social impacts, along with large impacts on regional climate and one of the reasons for this is the ever-continuous change of land use and land cover. The availability of high-resolution satellite imagery in addition to the advancements in geospatial technology allow mapping of LULC changes to be done accurately, efficiently and covering wide areas. This thesis studies the urban Land Use and Land Cover Change (LULCC) that happened in Abu Dhabi city for the last 3 decades by utilizing geospatial …

Pricing Asian Options During Crises With The Impact Of Exogenous Event, Moath Ali Bakour

Theses

Asian options are financial derivatives products whose value depends on the value of underlying asset prices. These options are called path-dependent since their payoff is built on the prices of the underlying asset over some time. As in the case of the European options, the Asian option pricing problem is primarily subject to the prediction model for asset prices. The pioneer Black-Scholes model in the paper [2] suggests a GBM-Geometric Brownian motion. The Black-Scholes formula has several shortcomings. For instance, the Geometric Brownian motion does not take into consideration crises. Another problem in the Black- Scholes model is that it …

Design Analysis Of The Structural System Of Alainsat-1 Cubesat By Simulation And Experimental Validation, Abdalla Saad Elshaal

Theses

This thesis presents the process of conducting the structural analysis of AlAinSat-1 CubeSat through a numerical solution using Siemens NX. AlAinSat-1 is a 3U remote-sensing CubeSat carrying two earth observation payloads. The CubeSat is scheduled for launch on SpaceX's Falcon 9 rocket. To ensure the success of the mission and its ability to withstand the launch environment, several scenarios should be analyzed. For the AlAinSat-1 model, the Finite Element Analysis (FEA) method is used, and four types of structural analyses are considered: modal, quasi-static, buckling, and random vibration analyses. The steps followed include idealizing, meshing, assembling, applying connections and boundary …

Enhancing Cybersecurity Awareness In The United Arab Emirates: An Assessment Of Current Practices And The Development Of An Ai-Enhanced Mobile Application, Meera Humaid Alalawi

Theses

In today's interconnected world, individuals, private corporations, public institutions, and governments face increasingly sophisticated cyber threats and attacks, highlighting the critical need for individuals and organizations to understand cybersecurity comprehensively. Cyberattacks have affected many countries and infrastructures in different sectors worldwide, including the United Arab Emirates (UAE), which has become a main target for cybercrime due to its booming economy and tourism. The UAE considers cybersecurity an increasingly critical issue in our digital world, and increasing cybersecurity awareness among residents is essential to protect themselves and their organizations from cyberattacks. The primary objectives of this study are to identify key …

Satellite-Based Spatial And Temporal Characterization Of Rainfall Over The Uae, Yassin Ibrahim Ahmad

Theses

Studies on rainfall characteristics have been of particular interest in the arid and semi-arid regions, including the United Arab Emirates (UAE), due to its impact on the built and natural environment. Rainfall represents a vital water source and a potential threat to the built environment, particularly during flash rainfall. This thesis evaluates spatial and temporal variation of rainfall in the UAE. The UAE is classified into four ecosystems with a distinct distribution of precipitation (East Coast, Mountains, the Gravel Plains, and Desert Foreland). Satellite data on daily rainfall for the years starting from 2001 up to 2020 was obtained from …

Phytochemical Analysis, Antioxidant, And Anti-Breast Cancer Evaluation Of Haplophyllum Tuberculatum, A Medicinal Plant Native To The Emirate Of Ras Al Khaimah, Uae, Aaesha Mohammad Adam

Theses

Breast cancer (BC) emerges as the prevailing cancer type diagnosed in women, with more than 2 million new cases documented in 2020 worldwide. BC is the third leading cause of death after cardiovascular diseases and injuries in the United Arab Emirates (UAE). There are multiple treatment options for breast cancer including surgery, radiotherapy, and chemotherapy. Nevertheless, these treatments often impact surrounding tissues and cause side effects. Consequently, researchers seek an alternative approach that offers high efficacy and reduced cytotoxicity. Medicinal plants serve as a promising alternative for cancer treatment due to their accessibility, efficacy, and lower toxicity. Haplophyllum tuberculatum is …

Increasing The Phytoremediation Efficiency Of Heavy Metal-Contaminated Soils In The Uae Using Endophytic Actinobacteria For Sustainable Agriculture, Archana Mathew Mathai

Theses

Pollution caused by heavy metals (HMs) is a major environmental concern worldwide. Human actions, agriculture practices and industrial activities can cause the release of HMs into the environment. Soil contamination with HMs may have negative effects on crops, thus disrupting the food chain and posing risks to human health. Lead (Pb) is a common pollutant found in the soil when at high concentrations. Conventional land remediation techniques depending on chemical and mechanical methods are quite expensive and would lead to long-term deterioration of the ecosystems, while phytoremediation can serve as an alternative, eco-friendly approach to restore the lands for agricultural …

Expression Of Human Arginine Vasopressin In Arabidopsis Thaliana And Assessment Of Abiotic Stress Tolerance, Maitha Salem Aldarmaki

Theses

Human Arginine Vasopressin (HsAVP) is a nona-peptide that acts as an antidiuretic hormone. In human AVP regulates water permeability through the regulation of the water channel, aquaporin 2. The process begins with the binding of vasopressin to V2 receptor which activates cAMP-dependent protein kinase A (PKA). PKA phosphorylates aquaporin-2 at Ser256 and allows the aquaporin-2-containing vesicle to fuse with the apical membrane which increases water permeability. The present study describes the functional analysis of the codon-optimized HsAVP overexpressed in Arabidopsis thaliana. The main objective of the study is to assess if HsAVP affects drought and salinity stress …

Investigating The Magnetic Cycle Of The Planet-Hosting Star Hd189733, Mohammad Samih Raja

Theses

HD189733 is a planet-hosting star, harboring a hot Jupiter situated at approximately 8.8 stellar radii. This system is among the most studied systems for stellar magnetism, Star-Planet Interactions, and exoplanetary atmospheric studies. The largescale magnetic field of the star exhibits variability on relatively short timescales, however, no magnetic field cycle, including polarity flips, has been observed to date. This absence of cycle detection could be due to observational gaps between observing campaigns.

This thesis aims to explore the variability of the activity of HD189733 by conducting a homogeneous analysis of several publicly available datasets, obtained using several spectrographs/telescopes, spanning 18 …

Pea And Hemp Protein-Polyphenol Complexes For Improved Curcumin Delivery Via Emulsion System, Muhammed Suhail Ashraf

Theses

This study focuses on producing and characterizing protein-polyphenol complexes derived from pea and hemp proteins, paired with a variety of polyphenols including 2,4-Dihydroxybenzoic acid, Ferulic acid, and Rutin. The complexes were characterized using various techniques: UV-visible spectroscopy, fluorescence spectroscopy, total phenolic content analysis, and radical scavenging activities. Further, oil-in-water emulsions stabilised using these protein-polyphenol complexes and starch were explored as delivery systems for curcumin respectively. The formation of complexes was revealed by UV-visible spectroscopy, which indicated significant changes in the spectra of hemp and pea proteins upon complexation with polyphenols. The findings from UV-visible spectroscopy were supported by data from …

مبدأ الاقتناع القضائي في ضوء أحكام المحكمة الاتحادیة العلیا, محمد حسن العیدروس

Theses

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The Principle of Judicial Conviction in View of the Rulings of the Federal Supreme

The principle of judicial conviction is the main pillar of the theory of criminal evidence, it is not imagined that the criminal judge issues his judgment without basing this judgment on a firm conviction that has no doubt or guess, as it is known that criminal judgments of conviction are based on certainty and certainty, and the principle of judicial conviction represents a major guarantee of reassurance of the validity and integrity of penal judgments and access to justice, and this study dealt with rooting …

Intelligent Tutoring System Ontology, Wael Mohamed Hassan

Theses

The integration of pedagogical rules into Intelligent Tutoring Systems (ITS) using semantic web technologies, particularly the Web Ontology Language (OWL), holds great promise for enhancing the capabilities of these systems. However, a significant challenge arises from the labor-intensive process of manually constructing ontologies, which can consume valuable time and resources. While ontologies offer numerous advantages, including robust knowledge inference and scalability, the limitations of manual ontology creation are evident in terms of time and flexibility. Therefore, the primary objective of this research is to develop an efficient and automated solution that harnesses the benefits of ontologies while reducing the time …

Disturbance Observer-Based Control For Pmsg-Based Wind Turbiner Considering Unbalanced Grid Conditions, Moayad Alanani Maher

Theses

A typical Permanent Magnet Synchronous Generator (PMSG)-based wind turbine system consists of an electrical generator, Machine-Side Converter (MSC), Grid-Side Converter (GSC), dc-link capacitor, and a passive filter such as L filter or LCL filter to connect the GSC to the host grid. When the wind turbine operates under unbalanced grid voltages, a negative sequence component is introduced to the system. This negative sequence voltage can pose challenges for classical controllers to ensure an efficient control of the PMSG-based wind turbine system. On one hand, when the control objective is to ensure injecting sinusoidal and balanced three-phase currents to the grid, …

Theoretical And Computational Astrochemistry: A Variational Quantum Monte Carlo (Vqmc) Study Of The Trihydrogen Molecule Cation (H3+), Ahmad Saeed Alsaed

Theses

H₃⁺ is the simplest Three-Center Two-Electron molecule and it is of much interest in astrochemistry due to its high occurrence in the outer space, high reactivity, and strong acidic properties. In addition,H₃⁺ is involved in many chemical reactions in the interstellar medium (ISM) and its significant ability to absorb energy contributed to the cooling of the Universe during its early stages.

The main objective of this thesis is to approximate the ground state electronic energy of H₃⁺ by using a simple trial wavefunction consisting of a doubly occupied molecular orbital multiplied by a Jastrow …

Organic-Based Nutrient Solutions For Sustainable Vegetable Production In A Zero -Runoff Soilless Growing System, Maitha Salem Almheiri

Theses

As the adoption of soilless production systems escalates to meet the rising demand for safe and healthy fresh produce, the growing environmental awareness and consumer’s preference for sustainable production systems are stimulating the reduction of synthetic inputs. A greenhouse study using an auto-pot zero-runoff hydroponic system and lettuce (Lactuca sativa L.) as a model vegetable crop was conducted to evaluate the potential of substituting synthetic fertilizer Nutrient Solutions (NS) with organic-based NS. The use of organic NS resulted in lettuce plants with fewer leaves and a smaller leaf area, plant height, stem diameter, and fresh biomass compared to those …

اﺳﺘﻌﻤﺎل اﻟﻌﻘﻮد اﻟﺬﻛﯿﺔ ﻓﻲ ﺳﻮق اﻷوراق اﻟﻤﺎﻟﯿﺔ: دراﺳﺔ تحليلية, ﻣﺤﻤﺪ ﺧﺎﻟﺪ إﺑﺮاھﯿﻢ

Theses

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Using Smart Contracts in Financial Stock Market: An Analytical Study

Smart contracts are considered one of the latest technologies that have obtained attention from many Legalists and Engineers. Smart contracts are a set of arrangements written via programming languages through computer programs or by programmers without the need for an intermediary. Smart contracts are self-executing. It executes once the terms and conditions agreed between the parties happen.

Perspectives differ among legalists about the legality of smart contracts. Some legalists consider these contracts as binding legal contracts, while others believe that a smart contract might be just a part of …

اﻻﺧﺘﺼﺎص اﻟﻨﻮﻋﻲ ﻟﻤﺤﻜﻤﺘﻲ اﻟﺠﻨﺎﯾﺎت اﻟﻜﺒﺮى واﻟﺼﻐﺮى طﺒﻘﺎ ﻟﻘﺎﻧﻮن اﻹﺟﺮاءات اﻟﺠﺰاﺋﯿﺔ اﻻﺗﺤﺎدي, ﺧﺎﻟﺪ ﻧﺪﯾﻠﮫ اﻟﻨﻌﯿﻤﻲ

Theses

The Specific Jurisdiction of the Major and Minor Criminal Courts in Accordance with the Federal Criminal Procedure Law

This study deals with the rules of specific jurisdiction for the major and minor criminal courts in accordance with the Federal Code of Criminal Procedure, where specific jurisdiction is one of the most important jurisdictions stipulated by the federal legislator, by allocating specific courts to specific types of crimes. In light of this, the federal legislator in the United Arab Emirates has singled out a new system with regard to specific jurisdiction, distinguishing between the major and minor criminal courts in terms …

دور ﻣﻮاﻗﻊ اﻟﺘﻮاﺻﻞ اﻻﺟﺘﻤﺎﻋﻲ ﻓﻲ ﺗﻨﻤﯿﺔ اﻟﻮﻋﻲ اﻟﺴﯿﺎﺳﻲ ﻟﺪى ﻋﯿﻨﮫ ﻣﻦ اﻟﺸﺒﺎب اﻟﺠﺎﻣﻌﯿﯿﻦ ﻓﻲ دوﻟﺔ اﻹﻣﺎرات اﻟﻌﺮﺑﯿﺔ اﻟﻤﺘﺤﺪة, ﺷﻤﺎ ﻣﺒﺨﻮت اﻟﻤﻨﺼﻮري

Theses

The Role of Social Media in Shaping Political Awareness Among a Sample of Current and Graduate University Students in the United Arab Emiratesd

This study examines the impact of social media platforms on the political awareness among a sample of current and graduate university students in the UAE, including both current students and graduates. It aims to recognize the degree of political awareness of young people and the motivations for them to turn to social media platforms as a way of expressing their political views, as opposed to other methods, and the extent to which political beliefs spread across social …

Locally Tailored Knowledge, Attitude And Practice Towards Diet Sustainability Questionnaire: Validation Among Uaeu Adults, Asma Bahaaldeen Numan

Theses

Food production is a major contributor to global environmental change and sustainability. Sustainable diets can be defined as “diets with low environmental impacts which contribute to food and nutrition security and healthy life for present and future generations”. The United Arab Emirates (UAE) aims to enhance its food security to meet the current local demand and future needs of an increasing population. Before determining a sustainable diet pattern for the UAE population, it is foremost more important to understand the perception of sustainable diet production and consumption. A thorough comprehension of the knowledge, attitudes, and practices of the United Arab …

Synthesis And Biological Assessment Of Safranal-Loaded Metal-Organic Framework Nanostructures, Alia Musabbeh Alkaabi

Theses

Liver cancer remains a primary worldwide health concern, necessitating the development of innovative and effective treatment options. In this study, we present a biocompatible iron-based metal-organic framework (Fe-MOF) consisting of iron ligands connected by terephthalate linkers loaded with safranal, a major biomolecule of saffron (the stigmas of Crocus sativus flower), as therapeutic intervention with dual efficiency. This compound not only meets the demand for improved liver cancer therapies but also exhibits antibacterial properties against Escherichia coli and Lactobacillus. The synthesis stage of the study focuses on preparing MIL-88B(Fe) and loading safranal into/onto its structure (SAF@MIL-88B(Fe)). The material's composition and …