Digital Commons Network^™

Theoretical And Experimental Investigations Of Macro-Bend Losses For Standard Single Mode Fibers, Qian Wang, Gerald Farrell, Thomas Feir

Articles

Modeling of macro-bend losses for single mode fibers with multiple cladding or coating layers is presented. Macro-bend losses for standard single mode fibers (SMF28) are investigated theoretically and experimentally, showing that the inner primary coating layer of SMF28 has a significant impact on the bend losses and most of the radiation field is absorbed in the inner primary coating layer of SMF28. The agreement between theoretical calculations and experimental measurements suggests that the so-called elastooptical correction in modeling is not required for SMF28.

Use Of Advanced Synthesis Tools In Teaching Vlsi Design, Kevin Berwick, Dominic Nardone

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No abstract provided.

Seeing Crime And Punishment Through A Sociological Lens: Contributions, Practices, And The Future, Bernard E. Harcourt, Tracey L. Meares, John Hagan, Calvin Morrill

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No abstract provided.

What (Not) To Do About Obesity: A Moderate Aristotelian Answer, Richard A. Epstein

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No abstract provided.

Monopoly Dominance Or Level Playing Field - The New Antitrust Paradox, Richard A. Epstein

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No abstract provided.

Unbundling Scope-Of-Permission Goods: When Should We Invest In Reducing Entry Barriers?, Randal C. Picker

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No abstract provided.

Dollars And Death, Eric A. Posner, Cass R. Sunstein

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No abstract provided.

Hayek, Law, And Cognition, Richard A. Posner

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No abstract provided.

Policing L.A.'S Skid Row: Crime And Real Estate Redevelopment In Downtown Los Angeles (An Experiment In Real Time), Bernard E. Harcourt

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No abstract provided.

B2b E-Marketplaces In The Airline Industry: Process Drivers And Performance Indicators, Claudia-Maria Wagner, Bernd Huber, Edward Sweeney, Austin Smyth

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Competitive pressures are increasing within and between different strategically oriented groups of airlines. This paper focuses on the level of efficiency improvements gained by using e-Marketplaces in the procurement process. Findings from a survey among 88 international airlines reveal that the use of Business-to-Business (B2B) e-Marketplaces does play different roles across the various airline groupings. Airlines that are involved in strategic alliances show higher joint procurement activities than airlines that are not involved in strategic alliances. However, alliances are probably viewed as loose arrangements and thus airlines may be reluctant to share information on procurement prices and processes with another …

Group Judgments: Statistical Means, Deliberation, And Information Markets, Cass R. Sunstein

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How can groups elicit and aggregate the information held by their individual members? There are three possibilities. Groups might use the statistical mean of individual judgments; they might encourage deliberation; or they might use information markets. In both private and public institutions, deliberation is the standard way of proceeding; but for two reasons, deliberating groups often fail to make good decisions. First, the statements and acts of some group members convey relevant information, and that information often leads other people not to disclose what they know. Second, social pressures, imposed by some group members, often lead other group members to …

Irreversible And Catastrophic: Global Warming, Terrorism, And Other Problems Eleventh Annual Lloyd K. Garrison Lecture On Environmental Law, Cass R. Sunstein

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No abstract provided.

Precautions Against What - The Availability Heuristic And Cross-Cultural Risk Perception Meador Lecture Series 2004-2005: Risk And The Law, Cass R. Sunstein

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Because risks are on all sides of social situations, it is not possible to be globally "precautionary." Hence, the Precautionary Principle runs into serious conceptual difficulties; any precautions will themselves create hazards of one kind or another. When the principle gives guidance, it is often because of the availability heuristic, which can make some risks stand out as particularly salient, regardless of their actual magnitude. The same heuristic helps to explain differences across groups, cultures, and even nations in the perception of risks, especially when linked with such social processes as cascades and group polarization. One difficulty is that what …

Preemption Of State Spam Laws By The Federal Can-Spam Act, Roger Ford

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No abstract provided.

General Public License 3.0: Hacking The Free Software Movement's Constitution, Robert W. Gomulkiewicz

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The General Public License (GPL) enshrines a softwarehacker's' freedom to use code in important ways. Hackers oftenrefer to the GPL as the free software movement's "constitution."Richard Stallman, founder of the Free Software Foundation (FSF), wrote the most recent version of the GPL, version 2.0, back in 1991. For a constitution, a fourteen-year-old document is young, but for a license, it is quite old. The revision process is finally underway, led by Stallman and Eben Moglen, FSF's general counsel.

The release of GPL version 3.0 will be momentous for many reasons, but one reason stands out: The GPL governs much of …

Holding Intellectual Property, Xuan-Thao Nguyen

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The collapse of WorldCom, Inc., exposed a complex web of accounting irregularities. Within that web, recent filings by Dick Thornburgh, WorldCom's Bankruptcy Court Examiner, reveal a different type of scheme that involves the holding of intellectual property. Further scrutinizing the scheme reveals that WorldCom and its tax advisors, KPMG Peat Marwick LLP (KPMG), devised a tax avoidance scheme through the creation of an intellectual property holding company (IP holding company). This type of scheme has been widely and quietly utilized in the last twenty years by many corporations with substantial intellectual property.

Indeed, as state taxing authorities have become more …

Memory And Pluralism On A Property Law Frontier, The Contested Landscape Of New Mexico's Costilla Valley, Gregory A. Hicks

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This article describes the decades-long dispute between Hispano settlers of the Costilla Valley in northern New Mexico's Sangre de Cristo Land Grant and the succession of entrepreneurial owners of the grant during the late nineteenth and early twentieth centuries. Through the U.S. Freehold Land and Emigration Company and its successors, the new Dutch and American owners sought to replace patterns of land and resource use developed during the Mexican period with patterns of use intended to support Anglo colonial settlement and intense development of the region's natural resources. The Dutch and American owners faced continuing resistance from the area's Hispano …

General Public License 3.0: Hacking The Free Software Movement's Constitution, Robert W. Gomulkiewicz

Articles

The General Public License (GPL) enshrines a software hacker’s freedom to use code in important ways. Hackers often refer to the GPL as the free software movement’s “constitution.” Richard Stallman, founder of the Free Software Foundation (FSF) wrote the most recent version of the GPL, version 2.0, back in 1991. For a constitution, a fourteen-year-old document is young, but for a license, it is quite old. The revision process is finally underway, led by Stallman and Eben Moglen, FSF’s general counsel.

The release of GPL version 3.0 will be momentous for many reasons, but one reason stands out: The GPL …

Converged Vs. Dedicated Ipsec Encryption Testing In Gigabit Ethernet Networks, Luther Troell, Jason Burns, Kurt Chapman, Dave Goddard, Matt Soderlund, Chris Ward

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In January, 2005, Safenet, Inc. contacted the networking group to investigate the possibility of using our students for the purpose of comparing the performance of dedicated encryption device to an integrated encrypting device. The tests would also include a performance comparison between Data Link Layer (Layer 2) devices and Network Layer (Layer 3) devices. It was decided that the tests would consist of throughput, frame loss, and network latency. Two network topologies were used for the experiments: gigabit Ethernet and SONET OC-48. The equipment to be tested was Safenet’s High Assurance 4000 Gateway (HA4000) for the gigabit Ethernet topology and …

Classroom Interpreting And Visual Information Processing In Mainstream Education For Deaf Students: Live Or Memorex?, Marc Marschark, Jeff Pelz, Carol Convertino, Patricia Sapere, Mary Ellen Arndt, Rosemarie Seewagen

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This study examined visual information processing and learning in classrooms including both deaf and hearing students. Of particular interest were the effects on deaf students’ learning of live (threedimensional) versus video-recorded (two-dimensional) sign language interpreting and the visual attention strategies of more and less experienced deaf signers exposed to simultaneous, multiple sources of visual information. Results from three experiments consistently indicated no differences in learning between three-dimensional and two-dimensional presentations among hearing or deaf students. Analyses of students’ allocation of visual attention and the influence of various demographic and experimental variables suggested considerable flexibility in deaf students’ receptive communication skills. …

The Invariant Algorithm For Identification And Detection Of Multiple Gas Plumes And Weak Releases, Erin O'Donnell, David W. Messinger, Carl Salvaggio, John Schott

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The ability to detect and identify gaseous effluents is a problem that has been pursued with limited success. It has been shown to bepossible using the Invariant algorithm on synthetic hyperspectralscenes with a strong single gas release. That however, is a veryspecific case and leaves room for further investigation. This studylooks at more realistic detection and release scenarios. Ourimplementation of the Invariant algorithm uses Singular ValueDecomposition (SVD) to select basis vectors from a subspace of targetgases in conjunction with a Generalized Likelihood Ratio Test (GLRT) to determine on a pixel by pixel basis how ``like" the target gas each pixel …

Do Institutions Matter? The Impact Of The Lead Plaintiff Provision Of The Private Securities Litigation Reform Act, Adam C. Pritchard, Stephen J. Choi, Jill E. Fisch

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When Congress enacted the Private Securities Litigation Reform Act in 1995 ("PSLRA"), the Act's "lead plaintiff' provision was the centerpiece of its efforts to increase investor control over securities fraud class actions. The lead plaintiff provision alters the balance of power between investors and class counsel by creating a presumption that the investor with the largest financial stake in the case will serve as lead plaintiff. The lead plaintiff then chooses class counsel and, at least in theory, negotiates the terms of counsel's compensation. Congress's stated purpose in enacting the lead plaintiff provision was to encourage institutional investors-pension funds, mutual …

Adaptive Voip Playout Scheduling: Assessing User Satisfaction, Miroslaw Narbutt, Andrew Kelly, Liam Murphy, Philip Perry

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Delay and packet loss dramatically affect the quality of a voice-over-IP (VoIP) call and depend on the playout buffer scheme implemented at the receiver. The choice of playout algorithm can’t be based on statistical metrics without considering the perceived end-to-end conversational speech quality. The authors present a method for evaluating various playout algorithms that extends the Emodel concept by estimating user satisfaction from time-varying transmission impairments. This article evaluates several playout algorithms and shows a correspondence between their results and those obtained via statistical loss and delay metrics.

Predict And Provide Vs Explore, Envision And Plan: Transforming The Urban Planning Approach Towards The Future, Elzbieta Krawczyk, John Ratcliffe

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Thinking about the future of humanity cannot be separated from thinking about the future of cities. Today, half of the world’s population lives in cities and the number of urban dwellers is constantly growing. On one hand, cities play a key role in generating economic growth; they are cores of human activity and frontiers of technological and cultural progress. On the other, urban areas are a source of a broad range of social and environmental problems and are especially vulnerable to the threats posed by factors such as climate change, terrorism, pandemic, social and cultural clashes. Considering the role and …

E-Procurement In The Aviation Industry: Value Creation Potential Of B2b Emarketplaces, Claudia-Maria Wagner, Bernd Huber, Edward Sweeney, Austin Smyth

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In academic literature, only limited research has been undertaken in exploring the value creation of B2B (Business-to-Business) e-Marketplace models in the aviation industry. The aim of this publication is a theoretical analysis to explore whether or not B2B e-Marketplaces can make a contribution to the achievement of competitive advantage in procurement in the aviation industry. The research focuses on the potential of B2B e-Marketplaces in terms of improving an airline’s competitiveness in its procurement value chain and discusses empirical results from a survey among international e-Marketplace / portal operators

Cavity-Backed Slot Antenna Array For The Repeater System Of A Satellite Digital Multimedia Broadcasting Service, Byungje Lee, Frances J. Harackiewicz, Byungwoon Jung, Myun-Joo Park

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For the repeater system of the satellite digital multimedia broadcasting (DMB) service (2630~2655 MHz) requiring a high-gain antenna and enough isolation between antennas, a cavity-backed slot antenna array (CBSAA) fed by a single waveguide is proposed to suppress side lobe level (SLL) and to increase front-to-back ratio (FBR). The SLL and FBR are enhanced with an optimized magnitude ratio of the electric field at each slot and an additional vertical reflector. The measured SLLs in the Hand E-planes are under -33.24 and -35.78 dB, respectively. An FBR over 37.84 dB and a peak gain over 17 dBi are measured. The …

Resistances To Reforming Corporate Governance: The Diffusion Of Qlccs, Robert Eli Rosen

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No abstract provided.

Spectral Imaging Using A Commercial Colour-Filter Array Digital Camera, Roy Berns, Lawrence Taplin, Mahdi Nezamabadi

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A multi-year research programme is underway to develop and deliver spectral-based digital cameras for imaging cultural heritage at the National Gallery of Art, Washington DC, and the Museum of Modern Art, New York. The cameras will be used for documentation, production imaging, and conservation science. Three approaches have undergone testing: a liquid-crystal tunable filter (LCTF) coupled with a monochrome camera, a six-position filter wheel containing absorption filters coupled with a monochrome camera, and a two-position filter slider containing absorption filters coupled with a colour-filter array (CFA) colour camera. The last approach is the most practical as it uses conventional digital …

Evaluation Of A Modified Sinar 54m Digital Camera At The National Gallery Of Art, Washington Dc During April, 2005, Roy Berns, Lawrence Taplin

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On April 26 – 27 2005, the RIT team brought their prototype Sinar 54M camera system to the National Gallery of Art’s Imaging Department. The team included Lawrence Taplin, Mitchell Rosen, and Roy Berns. RIT brought a spectroradiometer to measure the daylight fluorescent viewing illumination and if time allowed, NGA’s CRT display. They also brought a Macintosh G5 to control the camera and for image processing. NGA is using a production Sinar 54M. This enabled a direct comparison between NGA’s digital imaging workflow and the RIT workflow. Both cameras used the same lighting, Broncolor pulsed Xenon, lighting geometry, and photography …

A Simulation Of Composite Dispatching Rules, Conwip And Push Lot Release In Semiconductor Fabrication, Nizar Bahaji, Michael Kuhl

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This paper evaluates dispatching rules and order release policies in two fabs representing two wafer fabrication modes, namely, ASIC and low-mix high-volume production. Order release policies were fixed-interval (push) release, and constant work-in-process, CONWIP (pull) policy. Following rigorous fab modeling and statistical analysis, new composite dispatching rules were found to be robust for system cycle time and due-date adherence measures, in both production modes.