Digital Commons Network^™

Content-Based Image Retrieval Using Deep Learning, Anshuman Vikram Singh

Theses

A content-based image retrieval (CBIR) system works on the low-level visual features of a user input query image, which makes it difficult for the users to formulate the query and also does not give satisfactory retrieval results. In the past image annotation was proposed as the best possible system for CBIR which works on the principle of automatically assigning keywords to images that help image retrieval users to query images based on these keywords. Image annotation is often regarded as the problem of image classification where the images are represented by some low-level features and the mapping between low-level features …

Establishing An Effective National Environmental Information System, Rizah Hajdari

Theses

This Capstone project addresses the important problem of functional improvement of the National Environmental System in Kosovo. The main issues addressed are the legal requirements for data collection, data processing, validation, and reporting, as stipulated by the law on environment; and the practical needs for improvement in order to make the system more effective, more reliable, and more usable in order to provide timely and accurate environmental data to the policymakers and to overall public. In order to better address the problem, consideration is given to both international and national context of EIS requirements. This is very relevant given the …

Principles And Applications Of Mechanical Dry Coating - Review And State-Of-The-Art, Sayani Bhaumik

Theses

Dry Coating of powders to form composite particulates has been firmly established and has garnered interest both in academia and industry due to its myriad applications. This thesis work is an attempt to map the progress of the dry coating technology from its incipient years in the '80s to the thriving practice in the present day. Dry coating is a relatively simple approach to coat powders with specific guest particles via mechanical means to produce composites with desired tailor-made properties, without the constraints of harmful emissions or huge capital investment. Composite particulates with enhanced flowability, high-temperature resistant properties, and modified …

Experimental Determination Of Solids Suspension With Angled Impeller In A Pharmaceutical Mixing Vessel, Yingxi Tang

Theses

Angled-mounted impellers are commonly used in a number of pharmaceutical industry applications, from laboratory reactors to full-scale tanks. In these systems, the impeller is not centrally and vertically mounted, as in most stirred vessels, but it enters the vessel, and is therefore immersed in the fluid, at an angle from the vertical. This arrangement provides some baffling effects that would not otherwise exist if the impeller was centrally mounted.

One common requirement for such systems is that they are capable of suspending small solids dispersed in the liquid. Therefore, it is critical to know the value of the minimum agitation …

An Extended Duration Operation For Solid Hollow Fiber Cooling Crystallization Method, Chi Jin

Theses

As recently demonstrated by Chen et al. [1], the solid hollow fiber cooling crystallization method to achieve continuous polymer coating/encapsulation of submicrometer particles, has advantages of no problem with high pressure, easy scale-up and production of free-flowing coated particles. There is a concern whether this crystallization method can be applied for an extended duration coating process; it was not investigated in the previous study. Therefore, in order to examine this problem, in this work, the duration of the whole crystallization coating process has been greatly extended from 5 min to 60 min and 120 min. For the purpose of being …

Design, Construction And Characterization Of A Wind Tunnel, Chang Ge

Theses

The wind tunnel is the most fundamental test equipment for aircraft testing and studying aerodynamics. Because of the complexity of the test-subject's geometry, it is difficult to study the aerodynamic pattern simply based on theoretical calculations. Most of the aerodynamics experiments still use wind tunnels. The progress of the wind tunnel is highly related to the advancements in air crafts. Aircraft manufacturing has pushed the wind tunnel technology forward. Wind tunnels can be categorized by the wind speed limit differences, which are controlled by the mechanism of the driving methods, structure applications, etc. In this case, we built a small …

Behavior Of Deformed Dermal Fibroblasts Seeded On A Silicon Membrane Under High Levels Of Strain, Laura Osorno

Theses

The main objective of this thesis is to understand, from a molecular perspective, the morphological and functional abnormalities of human dermal fibroblasts as a response to deformation produced by a normal force that can lead to the potential formation of stretch marks in pregnant women, adolescents, and people with Cushing's syndrome. The main function of dermal fibroblasts is to produce the essential fibrous components of the extracellular matrix (ECM) of the skin.

In order to study the mechanism of stretch mark formation, neonatal human dermal fibroblasts were seeded on a silicon membrane for controlled deformation. Upon reaching a confluence of …

Unsupervised Gene Regulatory Network Inference On Microarray Data, Nidhi Radia

Theses

Obtaining gene regulatory networks (GRNs) from expression data is a challenging and crucial task. Many computational methods and algorithms have been developed to infer gene networks for gene expression data, which are usually obtained from microarray experiments. A gene network is a method to depict the relation among clusters of genes. To infer gene networks, the unsupervised method is used in this study. The two types of data used are time-series data and steady-state data. The data is analyzed using various tools containing different algorithms and concepts. GRNs from time-series data tools are obtained using the Time-delayed Algorithm for the …

Effect Of Impeller Submergence On Power Dissipation And Solids Suspension In Mixing Systems Equipped With Pitch-Blade Turbines, Yufeng Song

Theses

Mixing and dispersion of solids in a liquid is a process frequently encountered in the pharmaceutical industry and often conducted in cylindrical baffled tanks stirred by mechanical impellers. In operations where the liquid level is decreased (as often which emptying the tank) the process must be stopped when the solids are no longer suspended. In this work, the minimum agitation to suspend solids (Njs) when the liquid level was lowered, and the impeller submergence S_b changed as a result were determined for the case of a six-blade, pitch-blade turbine (6-PBT) impeller. The power consumed by the impeller …

Identifying Modifier Genes In Sma Model Mice, Weiting Xu

Theses

Spinal Muscular Atrophy (SMA) involves the loss of nerve cells called motor neurons in the spinal cord and is classified as a motor neuron disease, it affects 1 in 5000-10000 newborns, one of the leading genetic causes of infant death in USA. Mutations in the SMN1, UBA1, DYNC1H1 and VAPB genes cause spinal muscular atrophy. Extra copies of the SMN2 gene modify the severity of spinal muscular atrophy. Mutations in SMN1 (Motor Neuron 1) mainly causes SMA (Autosomal recessive inheritance). SMN1 gene mutations lead to a shortage of the SMN protein and SMN protein forms SMN complex …

The Kinetics Of Drug Dissolution In Polymers During Hot-Melt Extrusion, Huayang Fang

Theses

Extrusion has been a most important and widely used continuous process in polymer processing for over one hundred and fifty years. However, it has only been recently applied and adopted by the pharmaceutical industry to prepare solid oral dosage formulations with increased bioavailability for the poorly-water soluble drugs and controlled release characteristics for the water-soluble drugs. In pharmaceutical Hot-melt extrusion poorly water soluble drug particulates are mixed with water soluble polymer excipient particulates and fed in the extruder, where the polymer is melted, after which the drug particulates begin to dissolve into the polymer melt. Extrusion-generated mixing accelerates dissolution process. …

Experimental Determination Of The Agitation Requirements For Solids Suspension In Dissolution Systems Using A Mini Paddle Apparatus, Yang Song

Theses

Dissolution testing is a critical step in quality control of manufactured final products in the pharmaceutical industry. The United State Pharmacopeia (USP) Dissolution Testing Apparatus 2 (paddle) is the most widely used dissolution test devices in the pharmaceutical industry to formulate solid drug dosage forms and to develop quality control specifications for its manufacturing process.

Mini vessels and mini paddle dissolution testing systems are smaller versions of the USP 2 Apparatus. The concept of the mini paddle apparatus is similar to that of the USP 2 setup but it is scaled down about to 1/5 of the volume and 40% …

Bio-Medicinal Application For Plasma Electrolytic Oxidation Of Metals, Zunjian Yang

Theses

Plasma electrolytic oxidation (PEO), a novel method for forming ceramic coatings on metals, has been researched extensively in recent times. By applying high voltage between dielectric thin films, a plasma micro-arc is induced through penetration of breakdown in film boiling layer. Such a method takes advantage of high processing time, low equipment requirement and advanced coating performance.

Titanium alloys, Ti-6Al-4V and pure Titanium Grade 2, are two of most common Titanium alloys in daily use. Both of such Titanium alloys show great potential utilization in bio-medicinal application, especially in implants, for its excellent biocompatibility, high tensile strength, and high elastic …

Mining News Content For Popularity Prediction, Moayad Alshangiti

Theses

The problem of popularity prediction has been studied extensively in various previous research. The idea behind popularity prediction is that the attention users give to online items is unequally distributed, as only a small fraction of all the available content receives serious users attention. Researchers have been experimenting with different methods to find a way to predict that fraction. However, to the best of our knowledge, none of the previous work used the content for popularity prediction; instead, the research looked at other features such as early user reactions (number of views/shares/comments) of the first hours/days to predict the future …

3d Modeling Techniques For Print And Digital Media, Megan Ashley Stephens

Theses

In developing my thesis, I looked to gain skills using ZBrush to create 3D models, 3D scanning, and 3D printing. The models created compared the hearts of several vertebrates and were intended for students attending Comparative Vertebrate Anatomy . I used several resources to create a model of the human heart and was able to work from life while creating heart models from other vertebrates.

I successfully learned ZBrush and 3D scanning, and successfully printed 3D heart models. ZBrush allowed me to create several intricate models for use in both animation and print media. The 3D scanning technique did not …

Creation Of A Curatorial Plan For The Rit Archives: A Case Study Of The Frans Wildenhain Ceramic Collection, Alexander Nacca

Theses

Professionals in museums, archives, and libraries have a responsibility to maintain the quality of their collections so that the general public and scholars can enjoy and benefit from them. As such, any institution that holds, or displays objects for any period of time should have a curatorial plan in place that describes the necessary care, conservation, and preservation of those items. Without such a plan, museum professionals and their collections suffer. This thesis recognizes the importance of such documentation. In the absence of a curatorial care plan for the Wildenhain Ceramic Collection, I have created one. This collection is housed …

Identity Aperture: Self-Portraits, Genealogy, And Other Archives, Yuxiang Dong

Theses

As a foreigner in the United States, I need a passport, I-20, and visas to provide the answer to a very simple question: who am I? This body of work grew out of this urgent curiosity about identity. Meta-cultural and meta-biological factors like race, gender, and nationality give me a certain identity without me asking for it. However, I tend to forget the fact that my identity is negotiable and is constantly being negotiated around and inside me. At a certain point, I realize that in order to understand the man I have become, I need to re-encounter my journey …

Repurposing Vacant Lots For Stormwater Runoff Mitigation In Rochester, New York, Sandra Golberg

Theses

The area of the US known as the Rust Belt had an economic boom in the early 1900’s, and cities expanded rapidly to accommodate bustling manufacturing industries. This area then experienced a significant loss of population due to the migration of manufacturing industries to other areas beginning in the 1970’s. Many lots have become vacant and many homes have been abandoned because of this significant population loss. Industrialization introduces large areas of impervious surfaces and disturbs natural soils and landcovers, resulting in extensive stormwater runoff. While economies have declined, the problem of stormwater runoff remains. To mitigate the cascading problems …

Water Hyacinth - The Green Potential, Ratchanon Keawmanee

Theses

Aggressive invasion of floating water hyacinth has always been a big problem in Tropical countries, including Thailand. The ever growing amount of water hyacinth has polluted and block the flow of water in many rivers. A current solution for this problem is removal of water hyacinth from the rivers which basically harvest the plants from the rivers and dispose them someplace else. As stated, they are just plain and temporarily solutions, so such a problem still persists as time passes. My idea is to make use of what is so called "natural waste" and turn them into marketable goods which …

Neural Chimeras In The Huber-Braun Model With Abrams-Strogatz And Kuramoto Coupling Schemes, Tera Ashley Glaze

Theses

A chimera state occurs when a group of identical oscillators divides into two subgroups, one with synchronized activity, and one with unsynchronized activity. Found commonly in Abrams-Strogatz and in Kuramoto coupling, this state has been studied in many media, such as chemical, mechanical, and optical. Similar simulations have been investigated for media not as easily studied experimentally, such as neurons. The theoretical basis of the chimera state is still under study. Here, the chimera state is studied in context of the Huber-Braun model for neurons, with the two aforementioned coupling schemes. Forms of the chimera state different from the norm …

Integrated Cardiac Electromechanics: Modeling And Personalization, Hongda Mao

Theses

Cardiac disease remains the leading cause of morbidity and mortality in the world. A variety of heart diagnosis techniques have been developed during the last century, and generally fall into two groups. The first group evaluates the electrical function of the heart using electrophysiological data such as electrocardiogram (ECG), while the second group aims to assess the mechanical function of the heart through medical imaging data. Nevertheless, the heart is an integrated electromechanical organ, where its cyclic pumping arises from the synergy of its electrical and mechanical function which requires first to be electrically excited in order to contract. At …

Potential Of Greywater Reuse And Its Effects On Potable Water Demand Management And Downstream Sewer Network, Muhammad Ashfaque Rajput Abdul Hameed

Theses

The UAE’s water demand is rapidly increasing because of population growth, infrastructure development, expansion of agricultural practices, and desert greening policies. These circumstances force the country to depend on expansive desalinated water and made the country the second-largest desalination water producer in the world. It is essential to reduce the current water consumption rates by using efficient methods and conservation techniques. Greywater reuse is an effective and promising alternative to cope with this challenge. The study aimed to reduce water consumption in the Emirate of Abu Dhabi by investigating the potential of greywater reuse. A field survey was carried out …

Trascriptome Analysis Reveals Genes Commonly Induced By Botrytis Cinerea Infection, Cold, Drought And Oxidative Stresses In Arabidopsis Thaliana, Ahmed Dawood Al-Azzawi Al-Azzawi

Theses

Signaling pathways controlling biotic and abiotic stress responses may interact synergistically or antagonistically. To identify the similarities and differences among responses to diverse stresses, we analyzed previously published microarray data on the transcriptomic responses of Arabidopsis thaliana to infection with Botrytis cinerea (a biotic stress), and to cold, drought, and oxidative stresses (abiotic stresses). Our analyses showed that at early stages after B. cinerea inoculation, 1498 genes were up-regulated (B. cinerea up-regulated genes; BUGs) and 1138 genes were down-regulated (B. cinerea down-regulated genes; BDGs). We showed a unique program of gene expression was activated in response each biotic and abiotic …

Analysis Of Cycle 2 Science Textbooks Representation Of Scientific Literacy And Readability Level, Aisha Abdulla Salem Al Qaydi Al Qaydi

Theses

For over half a century, textbooks have played a decisive role in teaching and learning activities. In today’s classrooms, textbooks serve as primary teaching instruments and greatly influence how knowledge is delivered and communicated. With the development of the society, a majority of teachers use textbooks to guide their instruction. On the other hand, readability of textbooks is an important construct for both educators and textbook authors. Finding the right fit between the students’ reading ability and the text difficulty is an important and challenging task for teachers. This study is about how scientific content is presented and represented in …

Applications Of Pure And Recycled Polymeric Micronanofiber For The Removal Of Oil Spills, Afra Gharib Khamis Al-Blooshi Al-Blooshi

Theses

Cleaning oil spills is a universal concern due to its environmental impact. The aim of this study is to study the effectiveness and applications of pure and recycled polymers in clean-up and the recovery of crude oil from oil spills. In this study, micro-nanofibers of analytical-grade and commercial polystyrene samples were prepared by electrospinning technique. Fiber size distribution was shown to vary with the electrospinning parameters and type of polymer. Fibrous sorbents prepare hereafter were investigated for their efficiency in removing oil spills. Results showed a variation in the sorption capacities of the fibers to various types of crude oils …

Principals' Instructional Leadership Practices And Their Relationship To Teachers' Instructional Practices In Sharjah Schools, Hayat Mohamed Al Hosani

Theses

Instructional leadership has become one of the most widely researched topics. This type of leadership has been connected to teacher growth and development, teacher job satisfaction, student achievement, and improving school climate in general. This study focuses on instructional leadership in schools of Sharjah Education Zone. Specifically, the study aims to describe the principal instructional leadership practices, to identify the most and least important teachers' instructional practices, and to investigate whether there is a relationship between the principals' instructional practices and teachers' teaching practices. This study is quantitative in nature and therefore a questionnaire was used to collect data from …

Efficient Data Communication In Unmanned Aerial Vehicles, Farhan Mohamed

Theses

A large number of recent advancements in the technology of Unmanned Aerial Vehicles (UAVs) have enabled them to be very useful and effective in many applications in today’s society. They demonstrate a high degree of stability and agility in the air. A few years ago military applications were the main driving force behind the development of UAVs and UAV systems. Many of their applications included monitoring, surveillance, data transmission and communication. Recently, several opportunities have emerged and participated in driving the development of UAV technology further ahead. Such opportunities include integration of UAVs with smart cities, disaster recovery, military and …

Optimal Packaging Of Mason-Pfizer Monkey Virus (Mpmv) Genomic Rna Depends On Conserved Long Range Interactions Between U5 And Gag Complementary Sequences, Rawan M. Khaleel Kalloush

Theses

Employing a combination of genetic and biochemical approaches, we have recently shown that the 5’ end of MPMV genome (from the first nucleotide in R up to 120 nt of Gag) contains a number of sequence and structural motifs important for MPMV gRNA packaging and dimerization. A distinguishing feature of the higher order structure of MPMV packaging signal RNA is two long-range interactions (LRI) between U5 and Gag complementary sequences, LRI-I and LRI-II, which are phylogenetically conserved among different MPMV strains. These LRIs have been suggested to play a role in stabilizing the RNA secondary structure of the 5’ UTR …

Adsorption Of Dyes On Activated Carbon From Agricultural Wastes, Maliha Parvin

Theses

Adsorption of dyes as a remediation technique for dye-loaded wastewater remains an area of interest. On the one hand, adsorption using bio-derived, renewable sorbent materials can be seen as environmentally friendly, on the other hand adsorption can provide us with a trouble-free, commercially cheap operation. The main objective of this thesis is adsorption of the dyes Crystal Violet (CV) and Nile Blue (NB) on activated carbon derived from date palm leaf wastes. For this purpose, activated carbon was prepared via chemical treatment of palm leaf wastes with sulfuric acid (H2SO4), phosphoric acid (H3PO4), and nitric acid (HNO3), respectively, with subsequent …

Mathematical Modeling Of Communicable Imported Diseases Screening In The United Arab Emirates, Lahbib Ben Ahmadi

Theses

The United Arab Emirates (UAE), as one of the countries with high numbers of expatriates in the world, is expected to face public health challenges. The reason for this situation is that the majority of those expatriates belong to regions where health issues are usually left behind. This may create the possibility of having imported communicable diseases. However, screening policy should be tested and adapted to protect the population from any imported communicable disease. This study aims at identifying an approach and method to deal with these imported diseases via a set of differential equations. The spread of a communicable …