Digital Commons Network^™

Current Requirements By Electro Hydrodynamic Filter Systems Under Shipboard Operation Conditions, Ravi Shankar Attri

Theses

An experimental study was performed to determine the current required by an ElectroHydrodynamic (EHD) filter system to clean contaminants from Diesel Engine Lubrication Oil under normal shipboard operation conditions. The amount of current at a set predetermined voltage, which together means Power, was needed in order to anticipate the power required to perform a Shipboard Site Test Evaluation of the EHD filter.

The filter uses the effect of dielectrophoresis to separate contaminants from the lubrication oil. The filter operates at two thousand volts (2KV ac-rms) and thus requires substantial current to energize its electrodes. This type of Power is not …

Flexible Manufacturing System Utilizing Computer Integrated Control And Modeling, Yahia Mohammed Al-Smadi

Theses

In today's fast-automated production, Flexible Manufacturing Systems (FMS) play a very important role by processing a variety of different types of workpieces simultaneously. This study provides valuable information about existing FMS workcells and brings to light a unique concept called Programmable Automation.

Another integrated concept of programmable automation that is discussed is the use of two feasibility approaches towards modeling and controlling FMS operations; the most commonly used is programmable logic controllers (PLC), and the other one, which has not yet implemented in many industrial applications is Petri Net controllers (PN). This latter method is a unique powerful technique to …

Determination Of Phase Composition Of Sputtered Tantalum On Steel Substrates By Resistivity Measurements, Younes Abbassi

Theses

The objective of this thesis was to develop a method of distinguishing between alpha and beta phases of tantalum films on steel substrates, using the four-point probe resistivity measurements. While there is a large difference between resistivities of the two Ta phases, the problem is challenging because the measurements are influenced by the low resistivity of steel.

For reference, the resistivity measurements of tantalum coatings (1-20 μm) on silicon and silicon dioxide substrates were conducted first. The measured resistivities were related to the crystallographic phase composition of Ta, which has lower resistivity in bcc form, α-phase, (13.5 to 42 μΩcm), …

A Case Study Of An Ergonomic Evaluation For A Shop Floor Facility, Ivan Siguencia

Theses

The aim of this paper is to discuss and recommend solutions for the ergonomic hazards present in a shop floor type of manufacturing facility. This type of study is important since the ergonomic issues that concern the shop floor worker are different than those faced by the assembly line worker. The shop floor employee for the most part enjoys work satisfaction, task variety, and is able to control his own work pace. From an ergonomic standpoint, this is the preferred work environment.

The focus of this paper is a case study. This study is a one-day ergonomic assessment of a …

Sustainable Agriculture : Pragmatism, Distinctions On Artifacts And The Role Of The Land Ethic, Dustin Mulvaney

Theses

This thesis will explore the ethical dimensions of global agriculture from the productionist paradigm to the land ethic in the context of the sustainable agriculture promoted in the fair trade, shade grown, and organic coffee movements. Much of the sustainable development debate in the environmental ethics literature has centered on justifications (from anthropocentric and nonanthropocentric worldviews) for preserving nature. Since agriculture is an artifact of human sedentary civilization, traditional nonanthropocentric arguments do not suffice because of the tendency to focus exclusively on natural systems. Building on the work of Katz's "Pragmatic ReConsideration" and Light's "methodological pragmatism," the role of anthropocentric …

Absorption Of Co2 Through Hollow Fiber Membranes Using Aqueous Solutions Of Various Absorbents, Praveen Babu Kosaraju

Theses

Absorption behavior of CO₂ was studied in different hollow fiber membrane modules fabricated using Celgard (polypropylene) and poly(4-methylpentene-1) microporous hollow fibers. Pure water, aqueous solutions of poly(amidoamine) (PAMAM) dendrimer of generation zero and monoethanolamine (MEA) were used as the absorbent; the absorbent solution flowed through the fiber bore, the gas mixture of C02 and N2 flowed countercurrently on the shell side. The system consisted of absorption in one module and stripping with Helium in another module of the same fibers. The absorption characteristics of the dendrimer solution and the MEA solution were studied in the modules built of Celgard …

Development Of A Method To Examine Shear Stress On Cardiomyocytes, Dhawal Desai

Theses

Cardiac hypertrophy is the remodeling or enlargement of the heart exhibited by individuals suffering from heart disease. Cardiac hypertrophy involves two mechanisms, mechanical stresses and humoral changes in the cardiac tissue. One such humoral change involves the Renin Angiotensin System (RAS). The primary fimction of RAS is maintenance of hemodynamics of the body mediated through an effector protein, Angiotensin 11. However, RAS has been shown to play a significant role in the pathophysiology of the heart; contributing to hypertension, cardiac hypertrophy and myocardial infarction. RAS acts through binding of Angiotensin 11 at its receptors. The two forms of Angiotensin 11 …

Development Of A Series Of Experiences To Help Students Evaluate Their Aptitudes For The Study And Practice Of Industrial Design, Paul Skaggs

Theses

In this thesis, author tries to discover and define the aptitudes that are desirable for industrial designers, and explore ways to allow the students to experience and realize what these aptitudes are in order to help the students self-evaluate their "fit" for the study of industrial design.

Structure Of Visual Storytelling And Graphic Design, Didon Danisworo

Theses

None provided.

The Marsh, Joshua Gramse

Theses

A descriptive narration of a project to create a short 2-D/3-D computer animated film, "The Marsh." The film is a non-character-based narrative progression showing a marsh during three phases of human history. Includes original thesis proposal, original storyboard, color stills, and the original poem that inspired the film.

Experiencing Discovery: Designing For Visual Delight, Sandy Knight

Theses

None provided.

Present Absence: The Visible And Invisible In Graphic Design, Michelle Carfagno

Theses

None provided.

Manifestations Of A Social Addiction: Forms Of Despair And Desire, Jose Santisteban

Theses

Not Included

Teacher Perceptions Of The New York State Regents Requirements: A Pilot Study, Jennifer Lerner

Theses

This pilot study investigated teachers' perceptions of the effects of the New York State Regents requirements on teachers and students. An eight question Likert scale survey was administered to one hundred high school teachers in an upstate New York urban school district. Survey questions covered the impact of the new standards on teacher autonomy, in addition to student and teacher anxiety level. Teachers were asked about the fairness of the exams, the amount of time spent teaching to exams, and how they perceived the exams as impacting school drop-out rate. Results indicated that teachers believed that the new requirements had …

How Substance Abuse Affects Sibling Relationships: A Qualitative Study, Kellee Garney

Theses

The purpose of this research was to gain an understanding of the sibling relationship when one sibling abuses drugs and/or alcohol. It was hypothesized that a sibling relationship with a substance-abusing sibling would have lower levels of closeness and trust than non-substance abusing sibling relationships. Nineteen young adults aged 19-47 were interviewed regarding their perceptions of the sibling relationship. Nine participants had a sibling they perceived as abusing drugs or alcohol, 1 participant was a substance abuser with a non-abusing sibling, and 9 participants had a non-substance abusing sibling. The sample was not randomly selected with participants recruited from Rochester …

Dynamic Surface: An Extrapolation Of Biodesign, Aniket Vardhan

Theses

None provided.

Intelligent Life, Jeff Spoonhower

Theses

None provided.

Study Of Aberrations Of Stepper Lenses In-Situ Using Phase Shifting Point Diffraction Interferometry, P. Venkataraman

Theses

Stepper lenses are tested by the lens manufacturer using various interferometric methods like phase measurement interferometry (PMI), before they are assembled onto the stepper or scanner. Once the system is set up, there are a few methods to study the lens aberrations in-situ using interferometry. The methods currently used are direct ones like direct aerial image measurement (DAIM) or indirect ones in which images of lines and spaces are formed in the photoresist and the aberrations inferred from scanning electron microscope (SEM) images of these. We propose using phase shifting point diffraction interferometry (PSPDI) for the purpose of measuring aberrations …

Southco Windscreen 2 Project Evaluation, Richard Langkamp

Theses

None provided.

Residence Of Memory, Peter Glasheen

Theses

Consists of 30 slides of the M.F.A. thesis exhibition "Residence of memory". The thesis investigates the history of funerary vessels and specifically practice of cremation.

The Effects Of Life Space Crisis Intervention Training On Levels Of Teacher Stress And Time-Out Room Referrals, Michele Helfand

Theses

Student behavioral problems are often cited as factors contributing to school violence and teacher stress. School violence and teacher stress ultimately contribute to a deterioration in the quality of the educational system in our society. Life Space Crisis Intervention (LSCI) is a strategy for using student problems as an opportunity to promote insight and behavior change. The intent of this study was to empirically examine the effects of a Life Space Crisis Intervention training. The outcome variables were teacher responses to a self report measure of stress (The Teacher Stress Inventory) and number and severity of time out room referrals. …

Automatic Indoor/Outdoor Scene Classification, Navid Serrano

Theses

The advent and wide acceptance of digital imaging technology has motivated an upsurge in research focused on managing the ever-growing number of digital images. Current research in image manipulation represents a general shift in the field of computer vision from traditional image analysis based on low-level features (e.g. color and texture) to semantic scene understanding based on high-level features (e.g. grass and sky). One particular area of investigation is scene categorization, where the organization of a large number of images is treated as a classification problem. Generally, the classification involves mapping a set of traditional low-level features to semantically meaningful …

Simulation And Economic Study Of The Med-Tvc Units At Umm Al Nar Desalination Plant, Shaikh Omar Al-Habshi

Theses

A rigorous mathematical model has been used to develop a steady state simulation program MEDNAR to analyze the multi-effect thermal vapor compression desalination (MED-TVC) plant at Umm Al-Nar power and desalination plant. The effect of thermodynamic losses on the thermal performance ratio, the specific heat transfer area and the specific flow rate of the cooling water are taken into account. The losses contemplated are the boiling point elevation and the temperature depression corresponding to the pressure drop during the vapor condensation process. The MEDNAR also takes into consideration the variation in the physical properties of the seawater with temperature and …

Msf Desalination: Modeling, Simulation, And Economic Study, Abdallah S. Al-Mazroui

Theses

Some data was collected and reported for seawater desalination in the gulf region. Some information is also given regarding the multi–stage flash (MSF) desalination plants in the United Arab Emirates. The total installed capacity of these plants is 518 MIG. It was revealed that the water demand in the Abu Dhabi Emirate alone has increased by 30 folds during the last 25 years.

A literature survey was conducted mainly on modeling and simulation of MSF desalination processes. A number of commercial software such as Speedup, Camel, and EvapoLund were reviewed with special emphasis on EvapoLund that has been used as …

Dependence Of Vco Jitter On Coupled Noise, Harikrishna Parthasarathy

Theses

In mixed signal systems, the Phase Locked Loop (PLL) forms an integral part of the clock distribution scheme. The PLL is used to generate a local clock frequency, which is much higher than the external clock. The performance of a PLL is greatly influenced by the Voltage Controlled Oscillator (VCO). Any nonlinearity introduced by the VCO affects the synchronization between operation of on-chip circuitry and the external components. The jitter or phase noise of a VCO is the most important non-ideality. Phase noise or jitter becomes critical as system frequency increases. The source of timing error maybe due to various …

Reflection, Melissa Sciera

Theses

Not Included

Effectiveness Of Opc For Systems Integration In The Process Control Information Architecture, Philips Zachariah

Theses

A Process is defined as the progression to some particular end or objective through a logical and orderly sequence of events. Various devices (e.g., actuators, limit switches, motors, sensors, etc.) play a significant role in making sure that the process attains its objective (e.g., maintaining the furnace temperature within an acceptable limit). To do these things effectively, manufacturers need to access data from the plant floor or devices and integrate those into their control applications, which maybe one of the "off the shelf tools such as Supervisory Control and Data Acquisition (SCADA), Distributed Control System (DCS), or Programmable Logic Controllers …

Power Distribution Design For High-Density Packages, Ghanshyam Nayak

Theses

This thesis describes the design of a high-density power distribution system. Properties of impedances of power distribution systems are examined. Impedances are classified as self and trans-impedances. These properties are then used to save simulation time, which is a big factor for power distribution system design. Time domain models are extracted for the test cases. A novel 2D-3D technique of placing decoupling capacitors is demonstrated that is based on the effectiveness of the capacitor at that location. The power distribution system acts as a cavity resonator supporting discrete modes that vary with distance. Each capacitor is placed at the physical …

Analysis Of H/W & S/W Techniques For Data Reduction In High Speed Digital Image Processing, Paul Desanctis

Theses

With the widespread utilization of charge-coupled-devices, there is much interest in methods to efficiently process images. The processing, manipulation, and storage of photographic quality digital images place significant demands on today's computers. Even with today's high performance bus structure and real-time operating systems, manipulating full resolution image data may quickly overwhelm computer hardware and software. In response to this, data reduction techniques have been developed to aid in resolving this problem. Two common data reduction techniques include data sub-sampling and data averaging. Data sub-sampling approach is simplistic in nature and perhaps easiest to implement in both hardware and/or software. This …

Spring-, Andrew Mcpherson

Theses

None provided.