Digital Commons Network^™

Silicone Hollow Fiber Membrane Bioreactors For Mixed Aerobic And Anaerobic Treatment Of Gas Phase Toluene And Trichloroethylene, Alexander Lee Korff

Masters Theses

"Volatile Organic Compounds (VOCs) are common in effluent waste streams from many sectors of industry and low-cost emission control technologies have the potential to mitigate long-term impacts on the environment. Federal Regulations, such as the Clean Air Act and National Emission Standards for Hazardous Air Pollutants (NESHAPS), as well as state regulations are imposing stricter requirements on point-source emissions, with an emphasis on toxic VOCs. Trichloroethylene (TCE) and tetrachloroethylene (PCE), which are toxic VOCs, have been used since the 1920's for a variety of industrial applications like: degreasing, paint and printing operations, as extraction solvents, and for cleaning and drying …

Automated Channel Emulator Based On Mems Switch And Improvement Of Signal Transition, Jingdong Sun

Masters Theses

"Channel Emulator, which is widely used in communication system development, is an instrument that emulates the real-world signal propagation environment between transmitter and. [sic] To overcome the disadvantages of traditional channel emulator, we propose a novel structure of the automated channel emulator in Section 1, which can be controlled by software and integrated into auto-testing system. MEMS switch, with good RF performance, is used to connect and isolate multiple channels.

In Section 2, we divide the whole channel emulator system into Channel, Support, and Controller Board, and provide detailed design procedures with critical parameters of each board. The well-designed high …

Effect Of Reservoirs Heterogeneity On Injection Pressure And Placement Of Preformed Particle Gel For Conformance Control, Ze Wang

Masters Theses

"Preformed particle gels (PPG) have been successfully applied as a plugging agent for plugging fractures and then divert displacing fluid into poorly swept zones. However, PPG propagation and plugging mechanisms through open fractures have not been studied thoroughly.

This work investigated the influence of some factors (particle size, brine concentration, heterogeneity, and brine salinity) on gel injectivity, plugging performance for water flow through open fractures. Five-foot tubes were used to mimic open fractures. Three models were designed to conduct the work, including (1) single fracture with uniform fracture width, (2) single fracture with different widths, and (3) two parallel fractures …

Study On The Applicability Of Relative Permeability Modifiers For Water Shutoff Using Numerical Simulation, Dheiaa Khafief Khashan Alfarge

Masters Theses

"Water production is a challenging problem to be controlled during hydrocarbon-reservoirs production life. Disproportionate Permeability Reduction (DPR) is often used as water shutoff treatment in production wells when other conventional solutions like mechanical isolations are difficult to perform. This study applied numerical simulation methods to diagnose the factors impacting DPR treatment success on macroscopic level and to see when, where and at which conditions DPR treatment can give best results.

This work indicated that the following points should be considered before DPR treatment is executed in any reservoir to get a successful treatment. Firstly, this research explored that DPR performance …

Shale Instability Of Deviated Wellbores In Southern Iraqi Fields, Ahmed Ali Shanshool Alsubaih

Masters Theses

"Wellbore instability problems are the cause for the majority of nonproductive time in the southern Iraqi fields' developments. The most severe problem in terms of effort and disbursement which is referred to a pipe sticking in Tanuma shale formation. Examining the drilling data revealed that this phenomenon was mostly related to the shear failure of the wellbore. Thus, a geomechanical analysis and drilling parameters/ practice optimization analysis were performed on a field in southern Iraq based on data from 45 deviated wells. The geomechanics analysis predicted the suitable drilling fluid density to prevent onset shear failure by using the Mogi-Coulomb …

Deterministic Simulation Of Thermal Neutron Radiography And Tomography, Rajarshi Pal Chowdhury

Masters Theses

"In recent years, thermal neutron radiography and tomography have gained much attention as one of the nondestructive testing methods. However, the application of thermal neutron radiography and tomography hindered by their technical complexity, radiation shielding, and time-consuming data collection processes. Monte Carlo simulations have been developed in the past to improve the neutron imaging facility's ability. In this present work, a new deterministic simulation approach has been proposed and demonstrated to simulate neutron radiographs numerically using a ray tracing algorithm. This approach has made the simulation of neutron radiographs much faster than by previously used stochastic methods (i.e Monte Carlo …

Composite Model Representation For Computer Aided Design Of Functionally Gradient Materials, Fangquan Wang

Masters Theses

"Functionally Gradient Materials (FGMs) feature smooth transition from one material to another within a single object. FGMs modeling is considered to be one of the new challenges in Computer Aided Design (CAD) area. To overcome this challenge, this thesis presents a composite approach to model FGMs. The input in STL format can be meshed and voxelized in FGMs modeling system. The material composition in each voxel can be generated from multiple different types of control features. And LTI filters including Gaussian Filter and Average Filter are applied to blur default material features in order to generate FGMs inside models. The …

Fluid Flow Through Deformation Band, Huining Zhang

Masters Theses

"Cataclastic deformation bands, which are common in porous sandstone, have the potential to restrict fluid flow. Geological studies have shown that permeability of deformation band shear zones can be one to five orders of magnitude less than for the sandstone host rock. However, recent studies based on simplified analytical estimates have shown that fluid flow in jointed deformation bands may not be retarded since joints play an important role in conducting fluids. In this study, 2 dimensional finite element analysis (FEA) is used to simulate the total discharge flow rate through jointed deformations. Variations of single planar and conjugate jointed …

An Investigation Of Plugging And Increasing Oil Recovery In Sandstone Porous Media By Micrometer-Size Particle Gel, Haifeng Ding

Masters Theses

"Micrometer-size particle gel (microgel) has been developed and successfully applied to improve conformance in mature reservoirs. However, quite few researches have been published to address on their effect on oil recovery and rock permeability modification.

This work conducted a series of core flooding experiments to investigate the injectivity, plugging efficiency and improving oil recovery potentials of a couple of microgels synthesized in our lab.

First, this work studied the impact of permeability and crosslinker concentration on PAM type microgel treatment. Results shows that microgel treatment would have a less plugging efficiency in lower permeability rocks, which could be caused by …

Single Phase Gas Flow Response Of Fractured Horizontal And Vertical Wells To Repeated Production, Divya Kandlakunta

Masters Theses

"Historically, the conventional approach to well production has been to produce continuously, minimizing interruptions to flow insofar as possible. Yet some operators have observed improved well flow rates and ultimate recovery after a significant well shut-in periods. These production increases have not been documented. This study investigates the production impact of cyclic production/shut-in on fractured vertical and horizontal gas well performance.

A numerical reservoir model in Stimplan software was used to model production in fracture stimulated vertical and horizontal gas wells. Reservoir permeability is varied over a range of 0.0001 md to 1 md, and the shut-in period was varied …

Hydrodynamic Of A Co-Current Gas Liquid Upflow In A Moving Packed Bed Reactor With Porous Catalysts, Ali Jabbar Toukan

Masters Theses

"In this study, the hydrodynamic, i.e. flow regime identification, line average liquid holdup, and the internal liquid holdup of a co-current moving packed bed reactor were studied. For the sake of hydrodynamics study, moving bed reactor is investigated as two-phase upflow packed bed reactor. Scaled down configuration was used to simulate of the moving bed reactors utilized in the industrial process. First, line average liquid holdup is measured with different geometrical configurations covering empty, dry, wet, and packed column under flowrates operation conditions. A new methodology has been developed to determine the line average liquid holdup for a porous catalyst. …

Parallel Profiles Of Inflammatory And Effector Memory T Cells In Visceral Fat And Liver Of Obesity-Associated Cancer Patients, Melissa Conroy, Karen Galvin, Suzanne Doyle, Maria Kavanagh, Ann-Marie Mongan, Aoife Cannon, Gillian Moore, John Reynolds, Joanne Lysaght

Articles

In the midst of a worsening obesity epidemic, the incidence of obesity-associated morbidities, including cancer, diabetes, cardiac and liver disease is increasing. Insights into mechanisms underlying pathological obesity-associated inflammation are lacking. Both the omentum, the principal component of visceral fat, and liver of obese individuals are sites of excessive inflammation, but to date the T cell profiles of both compartments have not been assessed or compared in a patient cohort with obesity-associated disease. We have previously identified that omentum is enriched with inflammatory cytokines, chemokines and T cells. Here, we compared the inflammatory profile of T cells in the omentum …

Integration Of New Biological And Physical Retrospective Dosimetry Methods Into Eu Emergency Response Plans – Joint Reneb And Eurados Inter-Laboratory Comparisons, Elizabeth Ainsbury, Christophe Badie, Stephen Barnard, Aidan Meade

Articles

RENEB, 'Realising the European Network of Biodosimetry and Physical Retrospective Dosimetry,' is a network for research and emergency response mutual assistance in biodosimetry within the EU. Within this extremely active network, a number of new dosimetry methods have recently been proposed or developed. There is a requirement to test and/or validate these candidate techniques and inter-comparison exercises are a well-established method for such validation.

A Novel Anthropomorphic Flow Phantom For The Quantitative Evaluation Of Prostate Dce-Mri Acquisition Techniques, Silvin Knight, Jacinta Browne, James Meaney, David Smith, Andrew Fagan

Articles

A novel anthropomorphic flow phantom device has been developed which can be used for quantitatively assessing the ability of MRI scanners to accurately measure signal / concentration time-intensity curves (CTCs) associated with dynamic contrast-enhanced (DCE) MRI. Modelling of the complex pharmacokinetics of contrast agents as they perfuse through the tumour capillary network has shown great promise for cancer diagnosis and therapy monitoring. However, clinical adoption has been hindered by methodological problems, resulting in a lack of consensus regarding the most appropriate acquisition and modelling methodology to use and a consequent wide discrepancy in published data. A heretofore overlooked source of …

Screening For Peripheral Arterial Disease And Carotid Artery Disease In Patients With Abdominal Aortic Aneurysm, C. Gray, Patrick J. Goodman, Paul Cullen, Stephen Badger, Kevin O'Malley, Martin K. O'Donohoe, Ciarán O. Mcdonnell

Articles

Screening for concomitant atherosclerotic disease is important in cardiovascular risk reduction. This study assessed the prevalence of carotid artery disease (CAD) and peripheral arterial disease (PAD) in patients with known abdominal aortic aneurysms (AAAs). All patients with AAA attending the vascular laboratory between the January 1, 2007, and December 31, 2009, were eligible for a carotid ultrasound and measurement of ankle brachial indices. A total of 389 (305 males) patients were identified on the AAA surveillance program with a mean (±standard deviation) age of 76 (±8) years. The mean age of the males was 75.4 (±7.8) years, and the mean …

A Tribute To Justice Antonin Scalia, Michael S. Mcginniss

North Dakota Law Review

No abstract provided.

Suitability Of The Underlying Theories Of Zealous Advocacy In Ensuring Justice: Laying The Ground To Look Beyond The Zealous Advocacy, Liton Chandra Biswas

North Dakota Law Review

No abstract provided.

Technology Competence: The New Ethical Mandate For North Dakota Lawyers And The Practice Of Law, Tracy Vigness Kolb

North Dakota Law Review

No abstract provided.

The Court And The Cannonball: An Inside Look, Lee Levine, Stephen Wermiel

American University Law Review

No abstract provided.

How Dramatic Shifts In Perceptions Of Parenting Have Exposed Families, Free-Range Or Otherwise, To State Intervention: A Common Law Tort Approach To Redefining Child Neglect, David Manno

American University Law Review

No abstract provided.

2015 Patent Decisions Of The Federal Circuit, Craig E. Countryman

American University Law Review

No abstract provided.

They['Ve] Got Eyes In The Sky: How The Family Educational Rights And Privacy Act Governs Body Camera Use In Public Schools, Sarah Pierce West

American University Law Review

No abstract provided.

"Group Play Therapy" From The Handbook Of Child And Adolescent Group Therapy, Michelle Englbom-Deglmann

Faculty Publications - Graduate School of Counseling

Group therapy, with clients of all ages, has a significant focus on community. As part of this community focus, group therapy has the potential to combat one of the greatest human pains: loneliness. Play therapy clients, most often children, “already struggle for autonomy and identity in this world, and can be cruelly oppressed in the midst of trauma and chaos and left feeling unfairly isolated” (Sweeney, 2011, p. 227). In his discussion of loneliness, Moustakas (1974) poignantly wrote, “It is the terror of loneliness, not loneliness itself but loneliness anxiety, the fear of being left alone, of being left out, …

Red Note New Music Festival Program, 2016, School Of Music

Red Note New Music Festival

The RED NOTE New Music Festival at Illinois State University is a week-long event which features outstanding performances of contemporary concert music.

The Viejo Period, Michael T. Searcy, Jane H. Kelley

Faculty Publications

Farming peoples thrived in the mountains, basins, and river valleys of northwestern Chihuahua for hundreds of years prior to the construction of platform mounds and ball courts at Paquime. Their small pithouse villages dotted the landscape near the rich floodplain of the Casas Grandes River, where they farmed maize, beans, and other goods. It was during this time (AD. 400-1200), known as the Viejo Period, that the foundations of the Chihuahuan culture were formed. While recognized as forming the roots of a more complex society, Viejo Period sites lack the monumental architecture and ornate pottery of the Medio Period (AD. …

The Benefit Of Friends: The Importance Of Sexual Restraint And Friendship In Marriage Formation, Jason S. Carroll

Faculty Publications

For young adults today, the word "friend" has multiple and sometimes contradictory meanings. For example, the term "friend" can refer to one's "best friend (BFF)" or "boyfriend" or "girlfriend"–labels that typically convey an ongoing relationship of commitment and concern between two people. But at the time, someone can be "friends" with several hundred people on their Facebook page, many of whom he or she never associates with or barely knows. And even a stranger is considered "friendly" when he is nice or courteous, even though there is no ongoing form of friendship in that association. In our modern society the …

“Error But Without Malice” In Defamation Of Public Officials: The Value Of Free Expression In International Human Rights Law, Edward L. Carter

Faculty Publications

Government officials in various parts of the world use defamation to silence critics, but defamation liability may curtail freedom of expression on topics of public interest and undermine human rights generally. Article 19 of the International Covenant on Civil and Political Rights guarantees freedom of expression unless a state can show need to protect individual reputation and acts proportionally. In its adjudication of complaints for violations of Article 19, and in its General Comment 34, the United Nations Human Rights Committee has crafted the principle that defamation liability may not be imposed if an erroneous statement about a public official …

Beyond The Paris Attacks: Unveiling The War Within French Counterterror Policy, Khaled A. Beydoun

American University Law Review

No abstract provided.

Walker V. Texas Division, Sons Of Confederate Veterans, Inc. And License Plate Speech: A Dangerous Roadblock For The First Amendment, Morgan E. Creamer

American University Law Review

No abstract provided.

Pipes, Pools And Filters: How Collaboration Networks Affect Innovative Performance, Harpeet Singh, David Kryscynski, Xinxin Li, Ram Gopal

Faculty Publications

Innovation requires inventors to have both "new knowledge" and the ability to combine and configure knowledge (i.e. "combinatory knowledge") and such knowledge may flow through networks. We argue that both combinatory knowledge and new knowledge are accessed through collaboration networks, but that inventors' abilities to access such knowledge depends on its location in the network. Combinatory knowledge transfers from direct contacts, but not easily from indirect contacts. In contrast, new knowledge transfers from both direct and indirect contacts, but is far more likely to be new and useful when it comes from indirect contacts. Exploring knowledge flows in 69,476 patents …