Digital Commons Network^™

Characterization And Bioactive Properties Of Young And Mature Soybean And Their Protein Hydrolysates, Amna Khalifa Alnuaimi

Theses

Soybeans are known for their high protein content that could be substituted for animal proteins. The potential bioactive properties of mature soybean (MS) proteins and their hydrolysates have been widely explored. The aim of this study was to investigate and compare various in-vitro bioactive properties (antioxidant, anti-diabetic, anti-obesity, and anti-inflammatory) of young soybean (YS) and MS flour and their protein hydrolysates when subjected to in-vitro simulated gastrointestinal digestion (SGID) and enzymatic hydrolysis, respectively. In the first phase, SGID of YS and MS flour was carried out to mimic the human digestion, while in the second phase, enzymatic hydrolysis of the …

Production And Characterization Of Natural Date Fruit Powder (Pheonix Dactylifera L.), Fayeza Hasan

Theses

The aim of this thesis was to study the possibilities for production and the characterization of powder from ripened date fruits (Phoenix dactylifera L.). Various techniques including tray drying, freeze-drying, vacuum drying, microwave drying, convection drying were tested for their ability to dry the dates sufficiently to produce a dated powder. Six varieties of dates namely Barhi and Khalas (soft varieties), Sagi and Sukari (semi-dry varieties), and Barakawi and Gundeila (dry varieties) were evaluated for their drying characteristics. The drying parameters and the physicochemical characteristics were compared and a storage study for the date powder was conducted. It …

Thermo Hydraulic Performance Of Polymer Double-Pipe Heat Exchanger For Single-Phase Heating/Cooling Application, Ahmed Mohamed Gafar

Theses

This thesis details the model-based study carried out for understanding the thermal and hydraulic performance of double pipe heat exchangers with and without pin-fins; both counter and parallel flow configurations are considered in the study. The pin-fins are located on the outer wall of the inner pipe thereby extending into the annulus and in this study, the hot fluid is assumed to pass through the annulus. The model consists of multiple governing equations such as continuity equations, Navier-Stokes equations, and energy equations. A fluent module of Ansys Workbench is used for conducting the model-based study. Double pipe heat exchangers constructed …

Electrodeposition Study Of Alloys For Solar Energy, Corrosion Resistance, And Battery Applications, Thaier Tawfeek Alawadh

Theses

Copper-Zinc-Tin sulphide (CZTS) compound is one of the alloys, which has significantly caught the attention of a considerable number of researchers since the beginning of the century. Consequently, academic laboratories started investigating the alloy in-depth with its various combination due to its valuable applications with high potential usage. The CZTS alloy has a high tendency to replace the current copper indium gallium selenide (CIGS) thin-film solar cell system due to scarcity of CIGS components, and toxic manufacturing procedures compared to CZTS. Nevertheless, CZTS is a new studied compound with exceptionally low photovoltaic empirical efficiency and an inadequate understanding of its …

أحكام المسؤولیة القانونیة للروبوت الطبي, زینب مسعود علي

Theses

تعتبر الروبوتات الطبیة من أحدث تقنیات الذكاء الاصطناعي، والتي یتم استخدامھا في العدید من المجالات الطبیة كروبوتات الرعایة الصحیة التي تعتني بكبار السن أو المعاقین، والروبوتات الجراحیة التي یتم استخدامھا في العملیات الجراحیة. وتثیر الروبوتات الطبیة العدید من الإشكالیات القانونیة، منھا ما یتعلق بالجوانب الأخلاقیة ومنھا ما یتعلق بالجوانب الاجتماعیة، والمسؤولیة عن الأخطاء الطبیة التي تسببھا الروبوتات.

وعلیھ یسلط ھذا البحث الضوء على موضوع الروبوتات الطبیة، والنظام العام والإطار القانوني لھذه الروبوتات والمسؤولیة المترتبة علیھا. ویعرض ھذا البحث للإطار القانوني الحالي لروبوتات العنایة الصحیة والروبوتات الجراحیة، وإسقاطھا على قانون المسؤولیة الطبیة في دولة الإمارات، والبحث في الطبیعة القانونیة والأساس القانوني …

Dynamics Biological Efficiency Of Basidiomycetes Fungi In Date Palm Leaf Waste Composting And Suitability As Growing Media, Fatema Saif Alkaabi

Theses

Soil quality and fertility status is grossly poor in arid regions. The problem is compounded due to lack of organic matter in the coarse sandy soil. Therefore, agricultural practices tend to use different organic materials like peat moss, perlite, etc., as organic materials. Despite the role of these growing media in improving the chemical and physical properties of soils, they are non-renewable resources and have high price in the market which make cultivation noneconomical. Hence, renewable resources like biowaste such as date palm leaf waste has been used as alternative source in the experiment to compare with other composting materials …

Sum Of Squares With Q-Series, Gosper’S Q- Trigonometry, An New Identities Via An Extended Bailey Transform, Zina Al Houchan

Theses

This report is concerned about q-series and some of their applications. Firstly, Jacobi’s q-series proof for Legendre’s theorem on sums of four squares will be presented. By way of comparison, the classical approach of this result will be also discussed. Secondly, Gosper’s q-trigonometry will be introduced using Jacobi’s theta functions and the theory of elliptic functions shall be employed to confirm one of Gosper’s conjectures. As an application, a proof for Fermat’s theorem on the sums of squares will be provided. Thirdly, an extended version of Bailey’s transform will be established and as a consequence, a variety of new q-series …

Bending-Torsion Flutter Analysis Of A Viscoelastic Tapered Wing Carrying An Engine And Subjected To A Follower Thrust Force, Youssef Shaaban Abdelfattah Matter

Theses

Flutter, a dynamic divergent instability, is one of the significant phenomena of Aeroelasticity. This dangerous aeroelastic phenomenon can occur to any flexible structure subjected to aerodynamic forces such as aircraft wings, bridges, buildings, etc. It is important to analyze the flutter in order to predict the speed and frequency at which it occurs so that structural damages and failures can be avoided. This thesis is concerned with non-dimensional parametric modeling of the flutter of a viscoelastic tapered wing with an attached engine. The main objectives of this thesis are to determine regions of stability and boundaries of flutter speed and …

The Q-Gauss Product, Q-Trigonometry Via Landen-Like Identities, And Positive Alternating Q-Series, Sarah Abo Touk

Theses

The object of this report is q-series and their relationship with certain special functions. Firstly, Jackson’s q-analogue of the Euler gamma function is introduced and a q-analogue for a famous formula of Gauss on products of the gamma function will be presented. Secondly, Jacobi’s theta functions will be discussed in details and new Landenlike half argument formulas will be established. As an application, q-trigonometric formulas shall be derived and a new proof for a well-known q-series relation of Jacobi will be given. Thirdly, an extended Bailey transform will be presented and a variety of new q-series will be deduced as …

التنفیذ على الأموال المنقولة المرھونة (( دراسة تحلیلة وفقا للقانون الاتحادي رقم (4) لسنة 2020 في شأن ضمان الحقوق في الأموال المنقولة و قرار مجلس الوزراء رقم ( 57 ) في شأن اللائحة التنظیمیة للقانون الاتحادي رقم ( 11 ) لسنة 1992 بشأن قانون الإجراءات المدنیة, مھا یوسف یعقوب علي الحوسني

Theses

تتناول ھذه الدراسة التنفیذ على الأموال المنقولة المرھونة وھي دراسة تحلیلة بین كل من قانون اتحادي رقم ( 4) بشأن ضمان الحقوق في الأموال المنقولة و قرار مجلس الوزراء رقم (57 ) في شأن اللائحة التنظیمیة للقانون الاتحادي رقم ( 11 ) لسنة 1992 بشأن قانون الإجراءات المدنیة، وحیث تبینّ من خلال ھذه الدراسة أن ھناك نوعان من التنفیذ ھما التنفیذ دون اللجوء إلى المحكمة والتي تحتوي على التنفیذ بتملك أو بیع الضمانة (المال المرھون) وذلك دون تقدیم طلب لمحكمة التنفیذ ویكون باتفاق كل من المضمون لھ (الدائن المرتھن) والضامن (المدین الراھن) وھذا وفق ما جاء بھ قانون ضمان الحقوق …

Performance Of Cement-Free Geopolymer Concrete Made With Ceramic Waste Powder Using Taguchi Method, Ponalagappan Chokkalingam

Theses

The ceramic industry produces a substantial amount of waste during its production processes. Recycling and reutilizing such ceramic waste is a challenge due to its extended biodegradation period. Consequently, the ceramic industry is dedicated to attaining a sustainable solution to dispose of this waste rather than discarding it wastefully into landfills or stockpiles. In turn, the demand for ordinary Portland cement has been on a steady increase, leading to concerns about the sustainability of the construction industry. As a sustainable alternative to cement, alkali-activated binders have been proposed owing to their ability to reduce carbon emissions, preserve nonrenewable natural resources, …

Development Of Piezoelectric Energy Harvesting System For Low-Frequency Vibrations, Mai Rabie Mahmoud Ismail

Theses

Harvesting energy from vibration sources has attracted the interest of researchers for the past three decades. Researchers have been working on the potential of achieving self-powered MEMS scale devices. Piezoelectric cantilever harvesters have caught the attention in this field because of the excellent combination of high-power density and compact structure. The main objective of this thesis is to develop a novel and optimum piezoelectric harvester system using lumped parameter model (LPM) for given vibration sources. The finite element model (FEM) is used in this work as an original approach to be utilized for optimal design optimization. Three types of validations …

Fabrication Of Chemically-Functionalized 3dprinted Porous Scaffolds For Biomedical Applications, Eiman Hamed Alblooshi

Theses

Hard tissues, such as bone and teeth, are natural composites of collagen nanofibers that are reinforced by inorganic calcium phosphate Nano crystallites, in the form of nanocomposites. The interlocking between these components in hard tissues explains their unique characteristics. Bone is mainly classified into two major types; compact and cancellous depending on the extent of porosity. Fractures in the compact bone can be treated using bone fixation implants, such as rods, screws, and plates, or can be totally replaced by bone implants if complete substitution is required. Cancellous bone, on the other hand, is highly porous and its substitution with …

Controllability And Observability Of Blood Glucose Levels And The Impact Of Covid-19 On Diabetic Patients, Mahra Salem Nasser Abdulla Alblooshi

Theses

Diabetes is a metabolic disorder that is characterized by high blood glucose concentrations resulting from insulin deficiency in case of type 1 or insulin inefficiency in case of type 2. While no cure for diabetes exists, the artificial pancreas is a possible way to manage diabetes, especially for type 1 diabetics. Where an artificial pancreas is a closed-loop control system with an integrated mathematical model. This control system imitates the function of a healthy pancreas. The first part of this thesis is concerned with the control system of an artificial pancreas that is based on Bergman’s minimal model of glucose-insulin …

Levels Of Testosterone Esters In Camel Hair, Aysha Khalid Alraeesi

Theses

Doping and steroid use represent a serious threat to animal health and can even lead to their untimely and painful death. However, doping is an acute problem in today's animal racing world, particularly in camel racing. Testosterone and its ten esters (benzoate, valerate, isocaproate, hexahydrobenzoate, decanoate, undecanoate, laurate, enanthate, cypionate, and caproate) are of utmost importance because when they are administered to animals it is difficult to measure them efficiently. The levels of testosterone and its esters in camels and other animals are typically determined using urine and blood tests. The aim of this study was to develop and validate …

Transcriptomic Analysis Of The Glycophytic Crop Ipomoea Aquatica Under Salinity Conditions Compared To Its Wild Halophyte Relative Ipomoea Pes-Caprae, Ruwan Saeed Aljneibi Husam Saeed Aljneibi

Theses

This study focuses on the glycophytic crop Ipomoea Aquatica (commonly known as water spinach) and its wild halophytic relative Ipomoea pes-caprae. I. Aquatica is a crop with economic value; however, it is unable to tolerate high levels of salinity. Whereas its relative Ipomoea pes-caprae is able to grow and thrive in the harsh environment of the UAE. The main aim of this study is to analyze the genetic differences underlying the variation in the two plants’ response to salinity and determine the genetic components that can be used to enhance I. Aquatica's tolerance to salinity. Accordingly, the plants were subjected …

Effect Of High-Pressure Processing On Quality And Shelf Life Of Green Fresh Juice Produced From A Blend Of Fruit And Vegetable, Ahlam Abdulla Al Hammadi

Theses

Background: The technology of high hydrostatic pressure (HPP) in food processing started to take a huge attention in food industries due to its ability to increase the shelf life of processed products by inactivating food-borne microorganisms and undesired enzymes that cause changes not acceptable by the consumers. Because of the treatments take place at low temperature and because no chemical preservatives are added, advantageous and gives more value to the product and matches consumer demand for healthy products.

Aims: The aim of this thesis was to study the effect of HPP on certain quality parameters of green fruit juice compared …

The Impact Of An Enrichment Program On Uae High School Students’ Creative Problem Solving Skills, Alyazia Sulaiman Alshehhi

Theses

Training human resources to be creative and innovate in the UAE had become a significant matter recently to stay within the stage of progressing towards a more dependable economy rather than oil. Gifted and talented individuals are the country's main resources, and way to progress. This study, therefore, aims to explore the impact of an enrichment program on improving UAE high school gifted students’ creative problem-solving skills. The sample included 78 gifted students from Abu Dhabi government schools. The students were grouped randomly into a control group (27 students), and an experimental group (30 students) who were exposed to a …

The Relationship Among Social Competence, Social Skills, And Academic Achievement For Students With Specific Learning Disability In The Uae, Amna Salem Al Yahyaee

Theses

The objective of this study is fourfold. To examine the relationship between a) parental involvement in their children’s education and social competence, b) parental involvement in their children’s education and their children’s academic achievement, c) parental involvement in their children's social competence and their children’s academic achievement, and d) parental involvement in their children's social competence and their children’s social skills. Thirty parents of children with specific learning disabilities participated in this study. Quantitative analysis was used in this study to answer the research questions. The results of this study revealed that there was no statistically significant relationship between parents’ …

Performance Evaluation Of Cement-Free Geopolymer Concrete Made With Recycled Concrete Aggregates And Steel Fibers, Jamal Ahmad Husam Samer Medljy

Theses

Sustainable and innovative alternatives have been investigated to replace concrete’s main components, natural aggregates, and cement. Previous studies have been carried out to replace NA and cement with recycled concrete aggregates (RCA) and inorganic alkali-activated geopolymer binders, respectively. Yet, such sustainable concrete has only been proposed for non-structural purposes, owing to the inferior properties of RCA. This research work aims to assess the feasibility of reutilizing RCA from construction and demolition waste and locally available industrial solid by-products in the production of sustainable geopolymer concrete for structural applications. The binding materials were either in the form of a single precursor, …

Effectiveness Of Food Safety Training On Knowledge, Atitude, And Practices (Kap) Of Homebased Food Business (Hfb) In Al Ain, Uae, Mariam Mohammed Al Kaabi

Theses

This research aimed at evaluating the levels of knowledge, relevant attitudes, and food safety practices (KAP) of food handlers that have home food businesses (HFB) in Al Ain city, UAE. It examined the effectiveness of the Essential Food Safety Training Program (EFST) in providing food safety Knowledge, attitude, and practices. A quantitative research method was conducted using a sample of 68 participants who responded to the questionnaires. Three research questions were used to guide the study and explore the differences of the level of Knowledge, Attitudes, and Practice (KAP) before and after training program by using a paired-samples t-test. This …

Scenario-Based Simulation Of Treatment Processes For Minimization Of Sludge Production From Al-Saad Wastewater Treatment Plant, Omar Gamil Abdelmajeed Hussien

Theses

The biological-activated sludge treatment process is the most widely used approach to treating domestic wastewater. It involves the transformation of soluble and particulate organic matter to gases and large amounts of settleable biomass (produced sludge). This sludge is considered one of the most pressing management challenges since its treatment represents approximately 50 to 60% of the total operational cost of a wastewater treatment plant (WWTP). The traditional management of excess sludge is by disposal in landfills, incineration, or agriculture reuse in the form of fertilizers but due to energy and environmental concerns, many jurisdictions developed strict policies and regulations for …

Numerical Investigation Of Mesh-Based Enhancement Of Vapor Bubble Condensation, Omar Darwish Ali Alqadi Alhammadi

Theses

The aim of this work is to study the vapor bubble condensation process and the enhancement technique via affecting bubbles dynamic using a mesh-based structure. The bubble dynamics and thermal behavior are studied by considering the heat and mass transfer through the bubble’s interface area between the vapor and liquid regions and the resulting condensation effects. The thermal characteristics of bubbles are observed considering the initial and final liquid temperatures. Additionally, the bubble dynamics are studied in terms of several parameters including the relative velocity of the bubble, bubble deformation, interfacial area, and the bubble diameters. The relation between the …

The Impact Of Digital Games Based Learning (Abacus) On Students’ Performance In Fraction For Fifth Grade Students In Al-Ain, Haneen Mazen Almassri

Theses

ABACUS active learn is an inclusive online site for teachers and students to illustrate and learn Mathematics in the primary level. ABACUS is considered as an online innovation that enables the students to have the ownership of their learning through interactive activities that can be done independently in the classroom or spend their rewards in online learning games. The main objective of this study is to examine the effect of using ABACUS on students’ performance of 5^th grade while studying Fractions. This study designed to be tested in Al-Ain, United Arab Emirates. A quasi-experimental design was used to collect …

Voicer: A Sign Language Interpreter Application For Deaf People To Better Communicate With Others, Yezhang Wang

Theses

In the past two decades, the rapid development of technology has made our daily life has changed dramatically. Everything has become easier and more convenient. However, while we can already communicate with people anywhere in the world in real time, most deaf and hard of hearing (HOH) people still need the intervention of a sign language interpreter to carry out their daily studies and work. Undeniably, Internet technology and smartphones have also significantly changed the lives of deaf people. But the barriers between them and the hearing world still exist. A significant number of studies have pointed out that cultural …

Healthway: A Personal Health Record System For User To Manage Their Own Health Condition, Jie Zhang

Theses

The 21st century is the era of the Internet, big data, but also the era of AI. The vigorous development of AI and Internet technology has also injected fresh blood into the traditional medical industry. Today, the Internet affects every aspect of the medical and health industry. For example, medical providers can use the Electronic Health Record System (EHR) to quickly obtain the necessary information and data to assist them to make disease diagnoses. The remote consultation and consultation of medical staff also require the help of the Internet, especially the 5G Internet. In this context, the demands of individual …

Using Ar And Vr Characters For Enhancing User Experience In A Museum, Kunal Shailesh Shitut

Theses

Museums and cultural heritage institutions have used technology to create interactive exhibits and pedagogical tools that help spark visitors’ interests. The rise of Augmented, Virtual and Mixed Reality Systems has further enabled the creation of a new generation of immersive experiences that can engage and educate visitors. These technologies can be used to develop digital characters that can serve as virtual tour guides and improve user engagement by answering questions and forming social bonds with the users. While such tour guides have been deployed as exhibits at many museums, the implementation is usually limited to a single exhibit or a …

Computational Design, Simulation Of Meshing, And Stress Analysis Of Strain Wave Gear Drives, Eloy Yague-Spaude

Theses

Strain wave gear (SWG) drives were patented in 1959 by C. Walton Musser as a coaxial, compact, and lightweight gear drive providing remarkably large gear ratios without backlash. This outstanding performance requires the use of a flexible gear, as well as a meshing process with two regions of tooth contact as opposed to traditional gear drives, which only mesh in a single region. The latter drives have been studied for centuries under the principles of solid mechanics whereas SWG drives lack strong bodies of literature, principles, and computational tools for their design.

SWG drives include three parts: wave generator, flexible …

Design For Hiking Safety & Fun, Tianyou Wu

Theses

With the urbanization of the world's population, more and more people have begun to choose outdoor hiking to get close to nature and get exercise. But outdoor hiking can be dangerous, and lack of relevant knowledge not only makes hikers have a poor or stressful time, but it can also be fatal. Losing your way in the wilderness encountering wild beasts, an unfamiliar poisonous plant, lack of physical strength, extreme weather, and other accidents will put many travelers into crisis every year. A safe and comfortable outdoor travel experience could not only increase the safety and fun of travel but …

Daniel: Towards Automated Bug Discovery By Black Box Test Case Generation & Recommendation, Michael G. Peechatt

Theses

Finding and documenting bugs in software systems is an essential component of the software development process. A bug is defined as a series of steps that produces behavior which differs from the software specification and requirements. Finding steps to produce such behavior requires expert knowledge of the possible operations of the software in development as well as intuition and creativity. This thesis proposes the Directed Action Node Input Execution Language (DANIEL), a language that represents test cases as directed graphs, where each node represents an action, and possible input arguments for each action are represented along the incoming directed edges. …