College of Arts & Sciences: Recent submissions
Now showing items 161-180 of 337
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Relationship between structure, properties and UV/Heat protection behavior of two different types of polyethylene manufactured in Qatar
(2021 , Professional Masters Project)Accelerated (artificial) weathering and thermal ageing tests were performed to investigate the effectiveness of different UV/HALS formulations in reducing the UV/heat degradation effect for two different low-density ... -
Cumulative exposure lognormal model with hybrid
(2021 , Master Thesis)This research aims to analyze data coming from step stress life testing experiments that are commonly used to make inferences on the reliability of products and machines. Customers expect a reliable product that can ... -
Accelerated failure time for Weibull distribution based partly interval censored data
(2021 , Professional Masters Project)In this project, the performance of maximum likelihood estimators of the parameters of Accelerated Failure Time (AFT) regression model based on Weibull distribution with simple imputations methods under Partly-Interval ... -
Nutrient consumption over time in plant litter decomposition in drylands: effects of different species mixtures and Photodegradation
(2021 , Professional Masters Project)Plant litter decomposition in soil is a dynamic process that is affected and regulated by several factors. Soil microbial activity, light intensity, litter composition and habitat all affect the rate of decomposition ... -
السياسة القطرية اتجاه مكافحة الارهاب في الفترة 2004/ 2020
(2021 , Master Thesis)هدفت الدراسة إلى بيان دور السياسة القطرية اتجاه مكافحة الإرهاب (2004-2020) فدولة قطر بالرغم من صغر مساحتها إلا أن لها تأثير ونفوذا في الساحتين الإقليمية والدولية، وقد استغلت السياسة القطرية مكانتها المتميزة في إرساء السلم ... -
العسكرة في إسرائيل: التجليات السياسية والاقتصادية والمجتمعية
(2021 , Master Thesis)برز الاهتمام بدراسة العلاقات المدنية العسكرية لدى العديد من منظري الدراسات السياسية والاستراتيجية وذلك لما تلعبه من دور مؤثر في سياق تطور الدولة الحديثة منذ نشأتها من جهة، وبين سياق السير نحو الديمقراطية من جهة أخرى، ... -
العلاقات المدنية العسكرية في حالات الطوارئ: قطر نموذجا
(2021 , Master Thesis)تناقش الدراسة الأدوار غير التقليدية للجيوش سواء مع قوات الأمن الداخلية في حفظ الأمن والتحقيق بالجرائم وتأمين الفعاليات الكبرى مثل القمم والأحداث الرياضية، و المشاركة في تطبيق إجراءات الوقاية والعزل وتقديم المساعدة اللوجستية ... -
Women's Political Participation in Oman: State, Society, and Culture
(2021 , Dissertation)This dissertation studies the social, legal, and institutional factors that hinder women in Oman from advancing their political participation from the perspective of female candidates. The main finding is that lager ... -
Phase II Non-parametric and Semi-parametric Profile Monitoring
(2021 , Master Thesis)The emergence of new technologies, as well as the availability of large amounts of information related to quality measurements, have shed the light to a new type of response characteristic called profile. Profiles are ... -
ASSESSMENT OF ORDERING PRACTICES AT BIOMEDICAL RESEARCH CENTER (BRC)- METABOLIC RESEARCH LABORATORY (MRL)
(2021 , Professional Masters Project)Background: Assessment of the purchasing and ordering process in the Metabolic Research Laboratory (MRL) at the Biomedical Research Center (BRC) at Qatar University (QU) is a critical component of the quality management ... -
ENHANCING THE FOULING RESISTANCE AND REJECTION OF CELLULOSE ACETATE [CA] /MXENE [𝑇𝑖3𝐶2𝑇𝑥] NANOCOMPOSITE MEMBRANES
(2021 , Master Thesis)Obstacles in the membrane-based separation field are mainly related to membrane fouling. This study synthesized a pioneering covalently crosslinked cellulose acetate anti-fouling mixed matrix membrane containing between ... -
Biodiversity of Ant Fauna (Hymenoptera: Formicidae) in Qatar
(2021 , Dissertation)Information on Formicidae of Qatar as well as insect fauna is poorly documented. So far only six species of Formicidae (ants) belonging to five genera have been recorded from Qatar; Brachyponera sennaarensis, Cataglyphis ... -
Designing of polyethylene-based material modified by plasma discharge for water/oil separation
(2021 , Master Thesis)Produced water (PW) from petrochemical industries is one of the largest wastewaters generated in Qatar. Soluble and insoluble oil contaminants occur in this water and must be removed if water will be used or discharged ... -
Muqim in Qatar Without Arabic: An Analysis of Arabic Language Competency Among Expatriates in Qatar
(2021 , Master Thesis)This study investigates the Arabic language proficiency levels and rates among a group of non-Arab expatriates in Qatar, as well as their attitudes toward Arabic and experiences of learning and using it in their daily ... -
Log-logistic Cox Model for Breast Cancer Partly Interval Censored Data
(2021 , Master Thesis)The research in this study is concerned with implementing techniques in data which include censored observations for the evaluation of survival analysis. Analysis of survival research has numerous distinctions in the ... -
Goodness of Fit Testing for the Log-Logistic distribution Based on Type I Censored Data
(2021 , Master Thesis)The main aim of this thesis is to investigate the problem of the goodness of fit test for Log-Logistic distribution based on empirical distribution function under Type I censored data. The maximum likelihood estimation ... -
Exponential model for breast cancer partly interval censored data via multiple imputation
(2021 , Master Thesis)The estimation problem for interval-censored data has been investigated by several authors. The application of conventional methods to interval censored data that has been considered by Lindsey and Ryan (1998) showed ... -
Linking Soil Chemical Parameters and Arbuscular Mycorrhizal Fungal Communities in Qatar
(2020 , Master Thesis)Much of Qatar’s habitats are characterized by a hyper-arid climate, low rainfall and scarce soil nutrients; all of which combine to create a stress-induced environment for fungal development. Agricultural productivity ... -
Fabrication of Heterostructured TiO2 Nanorods for Enhanced Solar Water Splitting
(2020 , Master Thesis)As global population growth and energy demand keep to ramp up, green and sustainable energy production with environmental concerns has become as one of the most serious challenges over the past years. Photocatalysis is a ... -
Enhancing the Thermoelectric Properties of N-type Bismuth-Telluride-Based Alloys Using Graphene As A Nanofiller
(2020 , Master Thesis)Bismuth telluride chalcogenides are the ideal thermoelectric materials used for near room temperature applications. However, the usage of these materials is relegated to a few applications as a result of the extremely low ...
