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2005

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Articles 24421 - 24450 of 25124

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Applying Scenario-Based Design And Claim Analysis To The Design Of A Digital Library Of Geography Examination Resources, Yin-Leng Theng, Dion Hoe-Lian Goh, Ee Peng Lim, Zehua Liu, Ming Yin, Natalie Lee-San Pang, Patricia Bao-Bao Wong Jan 2005

Applying Scenario-Based Design And Claim Analysis To The Design Of A Digital Library Of Geography Examination Resources, Yin-Leng Theng, Dion Hoe-Lian Goh, Ee Peng Lim, Zehua Liu, Ming Yin, Natalie Lee-San Pang, Patricia Bao-Bao Wong

Research Collection School Of Computing and Information Systems

This paper describes the application of Carroll’s scenario-based design and claims analysis as a means of refinement to the initial design of a digital library of geographical resources (GeogDL) to prepare Singapore students to take a national examination in geography. GeogDL is built on top of G-Portal, a digital library providing services over geospatial and georeferenced Web content. Beyond improving the initial design of GeogDL, a main contribution of the paper is making explicit the use of Carroll’s strong theory-based but undercapitalized scenario-based design and claims analysis that inspired recommendations for the refinement of GeogDL. The paper concludes with an …

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A Multi-Agent Approach For Solving Optimization Problems Involving Expensive Resources, Hoong Chuin Lau, H. Wang Jan 2005

A Multi-Agent Approach For Solving Optimization Problems Involving Expensive Resources, Hoong Chuin Lau, H. Wang

Research Collection School Of Computing and Information Systems

In this paper, we propose a multi-agent approach for solving a class of optimization problems involving expensive resources, where monolithic local search schemes perform miserably. More specifically, we study the class of bin-packing problems. Under our proposed Fine-Grained Agent System scheme, rational agents work both collaboratively and selfishly based on local search and mimic physics-motivated systems. We apply our approach to a generalization of bin-packing - the Inventory Routing Problem with Time Windows - which is an important logistics problem, and demonstrate the efficiency and effectiveness of our approach.

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Electromechanical Power Generation For Interplanetary Space Travel Beyond Low Earth Orbit, Badrul H. Chowdhury, Sushant Barave Jan 2005

Electromechanical Power Generation For Interplanetary Space Travel Beyond Low Earth Orbit, Badrul H. Chowdhury, Sushant Barave

Electrical and Computer Engineering Faculty Research & Creative Works

Preliminary results of investigating high frequency power generation using a permanent magnet synchronous machine is presented. The specific application is crew exploration vehicles for space travel beyond low earth orbit.

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Neural Network-Based Control Of Nonlinear Discrete-Time Systems In Non-Strict Form, Jagannathan Sarangapani, Zheng Chen, Pingan He Jan 2005

Neural Network-Based Control Of Nonlinear Discrete-Time Systems In Non-Strict Form, Jagannathan Sarangapani, Zheng Chen, Pingan He

Electrical and Computer Engineering Faculty Research & Creative Works

A novel reinforcement learning-based adaptive neural network (NN) controller, also referred as the adaptive-critic NN controller, is developed to deliver a desired tracking performance for a class of non-strict feedback nonlinear discrete-time systems in the presence of bounded and unknown disturbances. The adaptive critic NN controller architecture includes a critic NN and two action NNs. The critic NN approximates certain strategic utility function whereas the action neural networks are used to minimize both the strategic utility function and the unknown dynamics estimation errors. The NN weights are tuned online so as to minimize certain performance index. By using gradient descent-based …

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Is The Contractor More Secure With A Priority Right? A Functional Analysis Of Article 286 Of Prc Contract Law, Wei Zhang Jan 2005

Is The Contractor More Secure With A Priority Right? A Functional Analysis Of Article 286 Of Prc Contract Law, Wei Zhang

Research Collection Yong Pung How School Of Law

In recent years, China’s economic boom has drawn considerable attention all around the world. Real estate development is among the strongest pillars that support the fast growing GDP of this country. When fascinated by the shining residential buildings, office towers and public facilities sprouting across the country, however, we are also surprised at the mountains of the outstanding debts that Chinese contractors are not able to collect. Statistics shows that the aggregate amount of overdue payment to contractors has increased steadily during the past 15 years nationwide, with about $440 million in 1990, $2.4 billion in 1992, $3.7 billion in …

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Leveling The Playing Field: Labor Provisions In Cafta, Marisa Anne Pagnattaro Jan 2005

Leveling The Playing Field: Labor Provisions In Cafta, Marisa Anne Pagnattaro

Fordham International Law Journal

Part I of this Article details labor problems in CAFTA countries, with specific emphasis on problems related to fundamental labor rights. Part II discusses the labor-related trading objectives mandated by the U.S. Congress in the TPA, including the relationship of those objectives to core international labor standards promulgated by the International Labor Organization ("ILO"). Part III then analyzes the labor provisions that are included in CAFTA. To the extent that these provisions do not fulfill the labor objectives set forth in the TPA and do not adequately promote core international labor standards, Part IV proposes provisions that the United States …

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The Impact Of U.N. Human Rights Commission Reform On The Ground: Investigating Extrajudicial Executions Of Honduran Street Children, Caroline Mchale Jan 2005

The Impact Of U.N. Human Rights Commission Reform On The Ground: Investigating Extrajudicial Executions Of Honduran Street Children, Caroline Mchale

Fordham International Law Journal

This Note uses the case of Honduran street children to demonstrate that the U.N. Principles have not been adequately implemented, and argues that the international community should use the creation of the U.N. Human Rights Council (“Council”) as an opportunity to insist on better training and monitoring of investigative personnel worldwide. Part I reviews the legal standards establishing extrajudicial executions of street children as a major human rights violation and the Honduran State's duty to investigate. Part I also examines challenges facing Honduran investigative police agencies, including budget crises and accusations of corruption and complicity. Part I concludes with a …

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From Stockholm To New York, Via Rio And Johannesburg: Has The Environment Lost Its Way On The Global Agenda?, Paolo Galizzi Jan 2005

From Stockholm To New York, Via Rio And Johannesburg: Has The Environment Lost Its Way On The Global Agenda?, Paolo Galizzi

Fordham International Law Journal

This Article will examine the response of the international community to the compelling evidence on the environmental crisis facing our Planet. It will analyze the place of the environment in the international agenda from the early 1970s, when an international environmental agenda emerged, to the 2005 World Summit, where Heads of State and Government gathered to renew their commitment to the international agenda for the twenty-first century agreed at the Millennium Summit. More specifically, the Article will examine the "comprehensive" international environmental agenda that has emerged within the U.N.

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Anisotropic Diffusion Of N-Butane And N-Decane On A Stepped Surface, Shrijay Subramaniyan, Jee-Ching Wang Jan 2005

Anisotropic Diffusion Of N-Butane And N-Decane On A Stepped Surface, Shrijay Subramaniyan, Jee-Ching Wang

Chemical and Biochemical Engineering Faculty Research & Creative Works

The diffusion of single n-butane and n-decane molecules on a model stepped surface, Pt(655), and on a corresponding flat surface, Pt(111), is investigated using molecular-dynamics simulations and anisotropic united atom model. The surface step on Pt(655) causes the alkane molecules to adsorb on the lower terrace in all-trans conformations with their long molecular axes adjacent and parallel to the step edge, and to diffuse anisotropically along the surface step via a constant wiggly motion without rotation or marked deviation from the parallel adsorption configuration. At relatively high temperatures, the alkane molecules can temporarily break away from the step edge but …

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Measurement And Prediction Of Pressure Drop In Pneumatic Conveying: Effect Of Particle Characteristics, Mass Loading, And Reynolds Number, Kimberly H. Henthorn, Kinam Park, Jennifer S. Curtis Jan 2005

Measurement And Prediction Of Pressure Drop In Pneumatic Conveying: Effect Of Particle Characteristics, Mass Loading, And Reynolds Number, Kimberly H. Henthorn, Kinam Park, Jennifer S. Curtis

Chemical and Biochemical Engineering Faculty Research & Creative Works

This paper reports the effect of Reynolds number, mass loading, and particle shape and size on pressure drop in a vertical gas-solids pneumatic conveying line. We isolate the effect of one variable while holding all others constant. A commonly used pressure drop correlation and a state-of-the-art multiphase computational fluid dynamics (CFD) models are then assessed by comparing their predictions to experimental data. Deficiencies in the models and the correlation are identified, and possible modifications are proposed. The most notable deficiency is the inability of both the experimental correlation and the CFD model to accurately predict the pressure drop for gas-solids …

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Deuterium Nmr Studies Of Segmental Dynamics Of Anopore-Adsorbed Poly(Methyl Acrylate), Macduff O. Okuom, Frank D. Blum Jan 2005

Deuterium Nmr Studies Of Segmental Dynamics Of Anopore-Adsorbed Poly(Methyl Acrylate), Macduff O. Okuom, Frank D. Blum

Chemistry Faculty Research & Creative Works

Studies of segmental dynamics of polymers at interfaces provide a basis for understanding the properties of composite materials. Interfacial phenomena in multi-phase systems need to be understood as devices made from multi-phase polymeric systems become smaller. Various techniques have been used to investigate interfacial polymers at the air-polymer-solid interface; for example, ellipsometry,1 X-ray,2 and neutron reflectometry.3 These techniques typically characterize the structure (often the thickness) of the polymer layer and are normally used to determine the glass-transition temperature (Tg) through a break in the thicknesstemperature curve. There have been a few reports where the dynamics of polymers at the surface-air …

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Negative Reinforcement And Backtrack-Points For Recurrent Neural Networks For Cost-Based Abduction, Donald C. Wunsch, Ashraf M. Abdelbar, M. A. El-Hemaly, Emad A. M. Andrews Jan 2005

Negative Reinforcement And Backtrack-Points For Recurrent Neural Networks For Cost-Based Abduction, Donald C. Wunsch, Ashraf M. Abdelbar, M. A. El-Hemaly, Emad A. M. Andrews

Electrical and Computer Engineering Faculty Research & Creative Works

Abduction is the process of proceeding from data describing a set of observations or events, to a set of hypotheses which best explains or accounts for the data. Cost-based abduction (CKA) is an AI formalism in which evidence to be explained is treated as a goal to be proven, proofs have costs based on how much needs to be assumed to complete the proof, and the set of assumptions needed to complete the least-cost proof are taken as the best explanation for the given evidence. In this paper, we introduce two techniques for improving the performance of high order recurrent …

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Teaching Enron, Milton C. Regan Jan 2005

Teaching Enron, Milton C. Regan

Georgetown Law Faculty Publications and Other Works

What follows is a discussion of several transactions that the Examiner analyzed for the Enron bankruptcy court. These represent only a portion of the many transactions that the Examiner analyzed, but constitute a large number of the transactions with respect to which he focused on the conduct of attorneys. In most of these cases, the Examiner found that Enron's lawyers potentially could be liable to the company under various causes of action. In some instances, the Examiner did not find potential liability. These transactions are included in my discussion, however, because they can be used to explore certain ethical issues …

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Wetting Kinetics Of Films Containing Non-Adsorbing Polymers, S. Saritha, Xianzhong Zhang, Partho Neogi Jan 2005

Wetting Kinetics Of Films Containing Non-Adsorbing Polymers, S. Saritha, Xianzhong Zhang, Partho Neogi

Chemical and Biochemical Engineering Faculty Research & Creative Works

Kinetics of wetting by a polymer solution have been studied theoretically for a film pinned to a slot. The fluid mechanical equations have been solved using a numerical scheme. The role of polymers appears in the disjoining pressure in the model. The spreading kinetics are observed to follow a power law: a power of (1/4) is observed at short times due to the Laplace pressure, and (1/2) at large times under the Hamaker part of the disjoining pressure at very large times and with no equilibration. It is argued and demonstrated that techniques which have low resolutions such as microscopy …

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Channel Networks In Ice: Application Of River Network Research To Ice Streams, Jeremy Carter Mason Jan 2005

Channel Networks In Ice: Application Of River Network Research To Ice Streams, Jeremy Carter Mason

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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Developmental Incompetence, Due Process, And Juvenile Justice Policy, Elizabeth S. Scott, Thomas Grisso Jan 2005

Developmental Incompetence, Due Process, And Juvenile Justice Policy, Elizabeth S. Scott, Thomas Grisso

Faculty Scholarship

In 2003, the Florida District Court of Appeal reversed the murder conviction and life sentence imposed on Lionel Tate, who was twelve years old when he killed his six-year-old neighbor. Since Lionel was reported to be the youngest person in modern times to be sent to prison for life, the case had generated considerable debate, and the decision was appealed on several grounds. What persuaded the appellate court that the conviction could not stand, however, was the trial court's rejection of a petition by Lionel's attorney for an evaluation of his client's competence to assist counsel and to make a …

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Sources Of Water Captured By Municipal Supply Wells In A Highly Conductive Aquifer Western Montana, Amelia A. Tallman Jan 2005

Sources Of Water Captured By Municipal Supply Wells In A Highly Conductive Aquifer Western Montana, Amelia A. Tallman

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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Effect Of Supplemental Feeding On Cognitive Function In Wildland Firefighters During Arduous Fire, Annie J. Goodson Jan 2005

Effect Of Supplemental Feeding On Cognitive Function In Wildland Firefighters During Arduous Fire, Annie J. Goodson

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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The Objectivity Of Student Ratings Of Instructors Among Taiwanese Students, Shu-Hui Tsai Jan 2005

The Objectivity Of Student Ratings Of Instructors Among Taiwanese Students, Shu-Hui Tsai

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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A Narrative Inquiry Of Non -Profit Organization Turnaround: Leadership Through Operant Focus, Rory A. Weishaar Jan 2005

A Narrative Inquiry Of Non -Profit Organization Turnaround: Leadership Through Operant Focus, Rory A. Weishaar

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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Relationship Between School Principals' Workload And Their Quality Of Life In Taiwan, Hui-Tzu Wu Jan 2005

Relationship Between School Principals' Workload And Their Quality Of Life In Taiwan, Hui-Tzu Wu

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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Investigations Into The Occurrence And Causes Of Diel Changes In The Chemistry Of Streams, Stephen R. Parker Jan 2005

Investigations Into The Occurrence And Causes Of Diel Changes In The Chemistry Of Streams, Stephen R. Parker

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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Investigations Of A Chip-Firing Game, David Perkins Jan 2005

Investigations Of A Chip-Firing Game, David Perkins

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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A Tracer Monitored Titration For Seawater Total Alkalinity, Todd R. Martz Jan 2005

A Tracer Monitored Titration For Seawater Total Alkalinity, Todd R. Martz

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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Community Characteristics And Special Education Enrollment Rates In Montana, Klarissa L. Jensen Jan 2005

Community Characteristics And Special Education Enrollment Rates In Montana, Klarissa L. Jensen

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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Improving Agricultural Productivity In Thailand, James M. Biondich Jan 2005

Improving Agricultural Productivity In Thailand, James M. Biondich

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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Simulation-Based Performance Modeling For War Fighter In Loop Minefield Detection System, Abhilash Rajagopal, Sanjeev Agarwal, Sreeram Ramakrishnan Jan 2005

Simulation-Based Performance Modeling For War Fighter In Loop Minefield Detection System, Abhilash Rajagopal, Sanjeev Agarwal, Sreeram Ramakrishnan

Electrical and Computer Engineering Faculty Research & Creative Works

No abstract provided.

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Obesity And The Struggle Within Ourselves, Maxwell Gregg Bloche Jan 2005

Obesity And The Struggle Within Ourselves, Maxwell Gregg Bloche

Georgetown Law Faculty Publications and Other Works

The author argues that we ought to treat our eating, exercise habits, and girth as personal matters, for the most part, but that law can and should make a contribution, as an ally of our longer-term will against our immediate cravings. Law can be our ally in this fashion without command-and-control intrusion into our private lives. Such intrusion is at odds with our core beliefs and unlikely to produce public health success. It is more likely to provoke popular backlash--one reason why some who stand to gain from our unhealthy dining choices try to cast government efforts to inform these …

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A Microphone Array System For Multimedia Applications With Near-Field Signal Targets, Y. Rosa Zheng, M. El-Tanany, R. A. Goubran, Hongchi Shi Jan 2005

A Microphone Array System For Multimedia Applications With Near-Field Signal Targets, Y. Rosa Zheng, M. El-Tanany, R. A. Goubran, Hongchi Shi

Electrical and Computer Engineering Faculty Research & Creative Works

A microphone array beamforming system is proposed for multimedia communication applications using four sets of small planar arrays mounted on a computer monitor. A new virtual array approach is employed such that the original signals received by the array elements are weighted and delayed to synthesize a large, nonuniformly spaced, harmonically nested virtual array covering the frequency band [50, 7000] Hz of the wideband telephony. Subband multirate processing and near-field beamforming techniques are then used jointly by the nested virtual array to improve the performances in reverberant environments. A new beamforming algorithm is also proposed using a broadband near-field spherically …

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Constitutive Commitments And Roosevelt's Second Bill Of Rights: A Dialogue, Randy E. Barnett, Cass R. Sunstein Jan 2005

Constitutive Commitments And Roosevelt's Second Bill Of Rights: A Dialogue, Randy E. Barnett, Cass R. Sunstein

Georgetown Law Faculty Publications and Other Works

What made the Second Bill of Rights possible? Part of the answer lies in a simple idea, one pervasive in the American legal culture during Roosevelt's time: No one really opposes government intervention. Markets and wealth depend on government. Without government creating and protecting property rights, property itself cannot exist. Even the people who most loudly denounce government interference depend on it every day. Their own rights do not come from minimizing government but are a product of government. Political scientist Lester Ward vividly captured the point: "[T]hose who denounce state intervention are the ones who most frequently and successfully …

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