Digital Commons Network^™

Optimizing Injector-Producer Spacing For Co2 Injection In Unconventional Reservoirs Of North America, Dheiaa Alfarge, Mingzhen Wei, Baojun Bai, Abdullah Almansour

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Shale oil reservoirs such as Bakken, Niobrara, and Eagle Ford have become the main target for oil and gas investors as conventional formations started to deplete and diminish in number. These reservoirs have a huge oil potential; however, the predicted primary oil recovery is still low as average of 7.5 %. Carbon dioxide (CO₂) flooding has been a controversial approach to increase oil recovery in these poor-quality formations. This study investigated the effect of injector-producer spacing, in range of 925-1664 ft, on CO₂ performance in these plays by using numerical simulation methods. CO₂ utilization value under …

Novel Environmentally Benign Hydrogel: Nano-Silica Hybrid Hydrolyzed Polyacrylamide/ Polyethyleneimine Gel System For Conformance Improvement In High Temperature High Salinity Reservoir, Liping Ma, Shitou Wang, Yifu Long, Changqian Zhu, Hongbin Yang, Tangying Yang, Xiaochun Liu, Xiaorong Li, Baojun Bai, Wanli Kang

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

In order to address the conformance problem in high temperature and high salinity/hardness reservoir, an environmentally benign in-situ gel was developed based on hydrolyzed polyacrylamide (HPAM) and polyethyleneimine (PEI). Moreover, silica nanoparticle (SNP) was embedded to improve the performance of HPAM/PEI gel. To achieve the optimum formulation of HPAM/PEI-SNP gel, a comprehensive investigation was first conducted with the respect of gelation time, gel strength, and thermal stability. In addition, the particle size of SNP was determined by Dynamic Light Scatter (DLS) and the microstructure of HPAM/ PEI-SNP gel was characterized via Scanning Electron Microscopy (SEM). The optimum formulation, containing the …

Underground Structures, Rock Structures And Rock Mechanics From Ancient Era To The Modern Age, Ebru Akiş, Özgür Satici

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Usage of underground space is an old habit for human beings since ancient era. Our ancestors have used caves as a shelter for protection from the wildlife and nature, and they excavated caves to extract valuable minerals. They also used them as sanctuaries, tombs or for storage of goods. In addition, they built tunnels to be used as assault systems or to underpass fortifications during ancient warfare. Later on, tunnels were driven to supply water to the towns or to protect the towns from floods. They also built them for communication purposes. Though not knowing the exact time when they …

Development Of Structural-Functional Integrated Energy Storage Concrete With Innovative Macro-Encapsulated Pcm By Hollow Steel Ball, Hongzhi Cui, Waiching Tang, Qinghua Qin, Feng Xing, Wenyu Liao, Haibo Wen

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Phase change materials (PCMs) have great potential for applications in energy efficient buildings. In this study, an innovative method of macro-encapsulation of PCM using hollow steel balls (HSB) was developed and the thermal and mechanical performance of PCM-HSB concrete was examined. The macro-encapsulation system (PCM-HSB) was attached with a metal clamp (c) for better mechanical interlocking with the mortar matrix. The latent heat of PCM-HSB-c that can be acquired is approximately 153.1 J/g, which can be considered to rank highly among PCM composites. According to the self-designed thermal performance evaluation, the PCM–HSB-c concrete panel is capable of reducing and deferring …

St. Louis Area Earthquake Hazards Mapping Project: Seismic And Liquefaction Hazard Maps, Chris H. Cramer, Robert A. Bauer, Jaewon Chung, J. David Rogers, Larry Pierce, Vicki Voigt, Brad Mitchell, David Gaunt, Robert A. Williams, David J. Hoffman, Gregory L. Hempen, Phyllis J. Steckel, Oliver Salz Boyd, Connor M. Watkins, Kathleen B. Tucker, Natasha S. Mccallister

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

We present probabilistic and deterministic seismic and liquefaction hazard maps for the densely populated St. Louis metropolitan area that account for the expected effects of surficial geology on earthquake ground shaking. Hazard calculations were based on a map grid of 0.005°, or about every 500 m, and are thus higher in resolution than any earlier studies. To estimate ground motions at the surface of the model (e.g., site amplification), we used a new detailed near-surface shear-wave velocity model in a 1D equivalent- linear response analysis. When compared with the 2014 U.S. Geological Survey (USGS) National Seismic Hazard Model, which uses …

Super-Strong Materials For Temperatures Exceeding 2000 ⁰C, Laura Silvestroni, Hans Joachim Kleebe, William Fahrenholtz, Jeremy Lee Watts

Materials Science and Engineering Faculty Research & Creative Works

Ceramics based on group IV-V transition metal borides and carbides possess melting points above 3000⁰C, are ablation resistant and are, therefore, candidates for the design of components of next generation space vehicles, rocket nozzle inserts, and nose cones or leading edges for hypersonic aerospace vehicles. As such, they will have to bear high thermo-mechanical loads, which makes strength at high temperature of great importance. While testing of these materials above 2000⁰C is necessary to prove their capabilities at anticipated operating temperatures, literature reports are quite limited. Reported strength values for zirconium diboride (ZrB₂) ceramics can exceed 1 GPa …

Semi-Analytical Approach For Time-Dependent Load-Settlement Response Of A Jacked Pile In Clay Strata, Lin Li, Jingpei Li, De'an Sun, Weibing Gong

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Mechanical behavior of the soil around a jacked pile changes significantly during pile installation and subsequent consolidation. Hence, an axially loaded jacked pile exhibits apparent time-dependent bearing performance after pile installation. This paper presents a semi-analytical approach to predict the time-dependent bearing performance of an axially loaded jacked pile in saturated clay strata. The effects of pile installation and subsequent consolidation on the changes in mechanical properties of the surrounding soil are modeled by the cavity expansion theory and the radial consolidation theory, respectively. An exponential function-based load-transfer (t-z) curve is employed to describe the nonlinear behavior of the pile-soil …

Enhancing Light Transmission Through A Disordered Waveguide With Inhomogeneous Scattering And Loss, Raktim Sarma, Alexey Yamilov, Hui Cao

Physics Faculty Research & Creative Works

We enhanced the total transmission of light through a disordered waveguide with spatially inhomogeneous scattering and loss by shaping the incident wavefront of a laser beam. Using an on-chip tapered lead, we were able to access all input modes in the waveguide with a spatial light modulator. The adaptive wavefront shaping resulted in selective coupling of input light to high transmission channels, which bypassed the regions of higher scattering and loss in the waveguide. Spatial inhomogeneity in scattering and loss leads to the modification of the spatial structures of transmission eigenchannels, allowing wavefront shaping to redirect the energy flux to …

Laboratory Schools Annual Report, 2016-2017, Laboratory Schools, Illinois State University

Annual Reports – Laboratory Schools

Illinois State University Laboratory Schools annual report

Walking In The City: Koji Nakano’S Reimagining And Re-Sounding Of The Tale Of Genji, Isabella Ramos

Scripps Senior Theses

Imagined Sceneries is a work written by composer Dr. Koji Nakano of Burapha University, Thailand for two sopranos, koto, light percussion, narrations, soundscapes recorded in Kyoto, Japan in December 2015, and digital projections of Ebina Masao’s 1953 print series Tale of Genji. Imagined Sceneries’ reimagining and “re-sounding” of Heian Kyoto relies on a balance between what is imagined and what is experienced in performance. Its many elements collectively explore multiple layers of Japanese histories, soundscapes, environments, and sensibilities. Using Michel de Certeau’s concepts of the city, this thesis journeys through Nakano’s imagined spaces.

Masculinity On Women In Japan: Gender Fluidity Explored Through Literature And Performance, Jessica M. Perreira

Scripps Senior Theses

The first half of my thesis are my translations from Yumi Hirosawa’s Onna O Aisuru Onnatachi. The first translation is excerpts from a high school girls journal documenting her realization and acceptance of being lesbian, and her time with her first girlfriend. The second translation is a report by a freelance writer on three different lesbian bars in Shinjuku Ni-Chome. The most notable bar is an onabe bar called Little Prince. Onabe in the simplest terms are women who dress and act like men. Onabe are important to the research portion of my thesis because they allowed me to research …

Social Cohesion As A Gateway: Examining France's Efforts In Building Equitable Education Access For Marginalized Immigrants, Cherish Molezion

Scripps Senior Theses

This thesis examines the effects of France’s educational social cohesion policies, Zones d’Education Prioritaire (ZEP schools) and L’Agence nationale pour la cohesion sociale et l’égalité des chances (Acsé). I argue that these policies affect access to education for working-class descendants of immigrants; however, France’s republican ideology inhibits the extent to which equitability can be established between working-class descendants of immigrants and the majority population. Though a quantitative and qualitative data analysis, I scrutinize trends in education access and the labor market over the 2000s. Lastly, I make policy recommendations centering around positive discrimination approaches that France should adopt, in …

‘Invisible Women’: German Migrant Women’S Cultural Identity In Western Australia, 1945-1973, Sonja Porter

Theses : Honours

This study focused on the lived experiences of four German women who immigrated to Western Australia between 1945 and 1973. In 1945 post-WWII European migrants were permitted to immigrate to Australia for the first time since Federation and the introduction of the White Australia policy in 1901. 1973 signified the end of the White Australia policy and the beginning of establishing equality for migrants in Australia. Between 1945 and 1973 all migrants were expected to assimilate to the Australian culture and way of life and relinquish their own cultural identity. The aims of this study were to explore the impacts …

The Running Performance Profile Of Elite Gaelic Football Match-Play, Shane Malone, Barry Solan, Kieran Collins

Articles

The current study examined (a) the match running performance of Gaelic football and (b) the decrement in match running performance with respect to position. Global positioning satellite system technologies (4-Hz; VX Sport) were used with 3 elite intercounty teams across 3 full seasons with 250 full game data sets collected. Game movements were classified according to game actions and distance covered across speed zone thresholds (total distance [TD], high-speed running distance [HSRD; ≥17 km·h], sprint distance [SD; ≥22 km·h]; accelerations [n]; peak speed [km·h]). The influence of running performance in each quarter on the subsequent quarter was analyzed across all …

The Relationship Between Technical Performance Indicators And Running Performance In Elite Gaelic Football, Shane Mangan, Martin Ryan, Simon Devenney, Aidan Shovlin, Jason Mcgahan, Shane Malone, Cian O'Neill, Con Burns, Kieran Collins

Articles

The aim of the current study was to assess whether technical performance relates to positional running demands of elite Gaelic football players. Over a period of three years (2014–2016), four elite Gaelic football teams were monitored using GPS technologies. Four hundred and thirty-two individual player samples were collected from 52 competitive matches. Video analysis software was used to code technical performance indicators in all games. Pearson’s correlations were performed between all technical variables and total distance (m) and high-speed distance (≥17 km h−1). Total ball in play time had small to medium effects (r = .233 to .390, p …

A Contemporary Multi-Modal Mechanical Approach To Training Monitoring In Elite Professional Soccer, Adam Owen, Leo Djaoui, Matthew Newton, Shane Malone, Bruno Mendes

Articles

Objectives: Understanding movements and mechanical demands of elite soccer players during training and competitive stressors is important for the support provision of player performance. Continued appreciation to quantify and monitor training load (TL) is apparent, however reporting multi-modal approaches in-line with competitive match-play demands remain limited. The investigation aimed to highlight a multimodal training monitoring method and its relationship to match-play. Subjects: 29 elite European soccer players participated were assessed (26.7 ± 4.07 years, height 183.4 ± 5.87 cm, body mass 78.4 ± 8.03 kg, 57.55 ± 5.32 ml.kg⁻¹.min⁻¹ and body composition 54.12 ± 13.65 mm) with daily …

Jesus & The Gospels, William C. Hackett Jr

Syllabus Repository

No abstract provided.

Hermeneutics, Margaret English De Alminana

Syllabus Repository

No abstract provided.

Seventh-Day Adventist Approaches To Other Religions: Preliminary Findings From 1930–1950, Part Ii, Andrew Tompkins

Andrews University Seminary Studies (AUSS)

No abstract provided.

The Whole Church Sings: Congregational Singing In Luther’S Wittenberg [Review] / Leaver, Robin A., Jo Ann Davidson

Andrews University Seminary Studies (AUSS)

No abstract provided.

The Mystery Of Unanimity In Hosanna-Tabor Evangelical Lutheran Church & School V. Eeoc, Ira C. Lupu, Robert W. Tuttle

GW Law Faculty Publications & Other Works

In Hosanna-Tabor Evangelical Lutheran Church & School v. EEOC (2012), the Supreme Court held that the First Amendment supports a “ministerial exception” defense in anti-discrimination suits by clergy against their institutional religious employers. In advance of the decision, the outcome seemed unpredictable, and the Court’s unanimity arrived as a shock.

This paper illuminates the result, reasoning, and unanimity in Hosanna-Tabor. We explain how Hosanna-Tabor stands in a long line of decisions, grounded in both the Establishment Clause and the Free Exercise Clause, that prohibit state adjudication of “strictly and purely ecclesiastical" questions.

Part I examines why unanimity on the Supreme …

A Concise Guide To The Articles Of Confederation As A Source For Determining The Original Meaning Of The Constitution, Gregory E. Maggs

GW Law Faculty Publications & Other Works

Judges and scholars often refer to the Articles of Confederation when making claims about the original meaning of the United States Constitution. To help readers understand and evaluate such claims, this piece describes the formation and content of the Articles of Confederation and explains four ways in which the Articles may provide evidence of the original meaning of the Constitution. The two appendices to this piece contain an annotated copy of the Articles of confederation and a table linking provisions of the Constitution to their antecedents in the Articles.

Third Report On Crimes Against Humanity, Sean D. Murphy

GW Law Faculty Publications & Other Works

In July 2014, the U.N. International Law Commission placed the topic “Crimes against humanity” on its current program of work and appointed a Special Rapporteur. According to the topic proposal, the objective of the Commission is to draft articles for what could become a Convention on the Prevention and Punishment of Crimes against Humanity.

In 2015, based on the Special Rapporteur’s First Report, the Commission provisionally adopted the first four draft articles with commentary. In 2016, based on the Special Rapporteur’s Second Report, the Commission provisionally adopted an addition six draft articles with commentary. In this Third Report, which will …

Introduction, Naomi R. Cahn, June Carbone

GW Law Faculty Publications & Other Works

This is an introduction to a symposium issue that brings together two different sets of paper. The first set of papers were written in honor of Catharine A. MacKinnon, “Legal Feminism: Looking Back, Looking Forward.;” The second set of papers are drawn from a conference on “The Family-Inequality Debate: A Workshop on Coercion, Class, and Paternal Participation."

The U.S. Federal Procurement System: An Introduction, Christopher R. Yukins

GW Law Faculty Publications & Other Works

The U.S. procurement market is one of the largest in the world, and the procurement law which guides that market, a regulatory regime which is both complex and mature, offers important lessons for other procurement systems around the world. This article provides a modest introduction to U.S. procurement law – especially federal procurement law, which generally is more extensively developed than state or local procurement law – and suggests possible lessons learned that may be useful for other systems. The article proceeds in several parts. The article reviews the history of the federal procurement system, which can be traced to …

Crimes Against Humanity And Other Topics: The Sixty-Ninth Session Of The International Law Commission, Sean D. Murphy

GW Law Faculty Publications & Other Works

This essay analyzes the outcome of the sixty-ninth session of the U.N. International Law Commission held in the summer of 2017 in Geneva. The session was the first of a new quinquennium of the Commission, consisting of members who will serve from 2017 until 2021. Notably, the Commission completed on first reading a full set of draft articles with commentary on crimes against humanity. Progress was also made in developing draft guidelines on the provisional application of treaties; draft guidelines on protection of the atmosphere; draft articles on the immunity of state officials from foreign criminal jurisdiction; and draft conclusions …

Reducing Extreme Poverty Through Skill Training For Industry Job Placement, Abu S. Shonchoy, Selim Raihan, Tomoki Fujii

Research Collection School Of Economics

Vocational training programs aimed at rapidly growing sectors have the potential to reduce skills gaps, improve income and employment potentials. Such programs often been unsuccessful, because they are not driven by industry-demand and market-linkages, and they are not well targeted. Our rigorous RCT-based impact study shows that a targeted training-program offered to poor rural households in northwest Bangladesh has significant effects on employment in garment factories. Data from a follow-up — six and twelve months’ after the intervention — shows a statistically significant and large employment effect of the training program when it is combined with the stipend or internship.This …

Jump Regressions, Jia Li, Viktor Todorov, George Tauchen

Research Collection School Of Economics

We develop econometric tools for studying jump dependence of two processes from high-frequency observations on a fixed time interval. In this context, only segments of data around a few outlying observations are informative for the inference. We derive an asymptotically valid test for stability of a linear jump relation over regions of the jump size domain. The test has power against general forms of nonlinearity in the jump dependence as well as temporal instabilities. We further propose an efficient estimator for the linear jump regression model that is formed by optimally weighting the detected jumps with weights based on the …

Mixed-Scale Jump Regressions With Bootstrap Inference, Jia Li, Viktor Todorov, George Tauchen

Research Collection School Of Economics

We develop an efficient mixed-scale estimator for jump regressions using high-frequency asset returns. A fine time scale is used to accurately identify the locations of large rare jumps in the explanatory variables such as the price of the market portfolio. A coarse scale is then used in the estimation in order to attenuate the effect of trading frictions in the dependent variable such as the prices of potentially less liquid assets. The proposed estimator has a non-standard asymptotic distribution that cannot be made asymptotically pivotal via studentization. We propose a novel bootstrap procedure for feasible inference and justify its asymptotic …

The Investment Protection Chapter Of The Eu-Singapore Free Trade Agreement: A Model For The Post-Brexit Uk Iias, Siraj Shaik Aziz

Research Collection Yong Pung How School Of Law

The impending British exit (Brexit) from the European Union has placed the UK's investment policy at a crossroads. A post-Brexit UK will now have to reorganise its investment relationships with its economic partners through bespoke UK IIAs. This exercise will have to accommodate the shifting Zeitgeist concerning the balance of investors' rights and the right to regulate IIAs that is expected. This paper examines the continued relevance of the recently minted Investment Protection Chapter in the EU-Singapore Free Trade Agreement, acknowledged by Britain's power brokers, as a persuasive model for the UK to emulate for this purpose. This is notwithstanding …