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Differential Cross Sections Of D*± Photoproduction In Ep Collisions At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, R. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, R. Giusti, G. Iacobucci, G. Laurenti, G. Levi May 1997

Differential Cross Sections Of D*± Photoproduction In Ep Collisions At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, R. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, R. Giusti, G. Iacobucci, G. Laurenti, G. Levi

Faculty Publications

Inclusive photoproduction of D*± in ep collisions at HERA has been measured with the ZEUS detector for photon-proton centre of mass energies in the range 115 < W < 280 GeV and photon virtuality Q2 < 4 GeV2. The cross section σ → D*X integrated over the kinematic region pDz.ast;⊥ > 3 GeV and -1.5 < ηD* < 1.0 is (10.6 ± 1.7(stat.) ± 1.61.3 (syst.)) nb. Differential cross sections as functions of pD*⊥, ηD* and W are given. The data are compared with two next-to-leading order perturbative QCD predictions. For a calculation using a massive charm scheme the predicted cross sections are smaller than the measured ones. A recent calculation using a massless charm scheme is in agreement with the data. © 1997 Published by Elsevier Science B.V.

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The Probability Density Function Of Ocean Surface Slopes And Its Effects On Radar Backscatter, Y. Liu, Xh Yan, W.T. Liu, P.A. Hwang May 1997

The Probability Density Function Of Ocean Surface Slopes And Its Effects On Radar Backscatter, Y. Liu, Xh Yan, W.T. Liu, P.A. Hwang

Faculty Publications

Based on Longuet-Higgins's theory of the probability distribution of wave amplitude and wave period and on some observations, a new probability density function (PDF) of ocean surface slopes is derived. It is f(zeta(x), zeta(y)) = n/2 pi(n - 1)sigma(u) sigma(c) x [1 + zeta(x)(2)/(n - 1)sigma(n)(2) + zeta(y)(2)/(n - 1)sigma(c)(2)](-(n + 2)/2) + skewness, where zeta(x) and zeta(y) are the slope components in upwind and crosswind directions, respectively; sigma(u)(2) and sigma(c)(2) are the corresponding mean-square slopes. The peakedness of slopes is generated by nonlinear wave-wave interactions in the range of gravity waves. The skewness of slopes is generated by nonlinear …

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On-Line Cartesian Trajectory Control Of Mechanisms Along Complex Curves, Edward Red, Zhaoxue Yang May 1997

On-Line Cartesian Trajectory Control Of Mechanisms Along Complex Curves, Edward Red, Zhaoxue Yang

Faculty Publications

New methods have been developed to control a mechanism's realtime Cartesian motion along spatially complex curves such as Non-Uniform Rational B-splines (NURBS). The methods dynamically map the critical trajectory parameters between parameter space, Cartesian space, and joint space. Trajectory models that relate Cartesian tool speeds and accelerations to joint speeds and accelerations have been generalized so that they can be applied to most classes of robots and CNC mechanisms.

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Secondary Dark Rings Of Internal Conical Refraction, Karl F. Warnick, David V. Arnold May 1997

Secondary Dark Rings Of Internal Conical Refraction, Karl F. Warnick, David V. Arnold

Faculty Publications

This paper treats the phenomenon of internal conical refraction, in which a narrow beam propagating along an optical axis of a biaxial anisotropic medium spreads into a hollow cone. An expression is obtained for the intensity distribution produced by conical refraction that predicts additional fringes concentric to the well known Poggendorf dark ring for certain propagation distances and beam widths.

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Apocalypse Not Yet, Roy Gane Apr 1997

Apocalypse Not Yet, Roy Gane

Faculty Publications

No abstract provided.

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Towards A New Sensibility For International Economic Development, Lan Cao Apr 1997

Towards A New Sensibility For International Economic Development, Lan Cao

Faculty Publications

No abstract provided.

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Computer Ram 'Copies:' Hit Or Myth? Historical Perspectives On Caching As A Microcosm Of Current Copyright Concerns, I. Trotter Hardy Apr 1997

Computer Ram 'Copies:' Hit Or Myth? Historical Perspectives On Caching As A Microcosm Of Current Copyright Concerns, I. Trotter Hardy

Faculty Publications

No abstract provided.

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Paying For Suffering: The Problem Of Human Experimentation, Larry I. Palmer Apr 1997

Paying For Suffering: The Problem Of Human Experimentation, Larry I. Palmer

Faculty Publications

No abstract provided.

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A Soil-Canopy-Atmosphere Model For Use In Satellite Microwave Remote Sensing, Venkataraman Lakshmi, Eric F. Wood, Bhaskar J. Choudhury Mar 1997

A Soil-Canopy-Atmosphere Model For Use In Satellite Microwave Remote Sensing, Venkataraman Lakshmi, Eric F. Wood, Bhaskar J. Choudhury

Faculty Publications

Regional and global scale studies of land-surface-atmosphere interactions require the use of observations for calibration and validation. In situ field observations are not representative of the distributed nature of land surface characteristics, and large-scale field experiments are expensive undertakings. In light of these requirements and shortcomings, satellite observations serve our purposes adequately. The use of satellite data in land surface modeling requires developing a hydrological model with a thin upper layer to be compatible with the nature of the satellite observations and that would evaluate the soil moisture and soil temperature of a thin layer close to the surface. This …

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Wetland Loss In The Northern Gulf Of Mexico: Multiple Working Hypotheses, R. Eugene Turner Mar 1997

Wetland Loss In The Northern Gulf Of Mexico: Multiple Working Hypotheses, R. Eugene Turner

Faculty Publications

I examined four hypotheses about causes for the dramatically high coastal wetland losses (0.86% yr−1) in the northern Gulf of Mexico: an extensive dredged canal and spoil bank network, a decline in sediments in the Mississippi River during the 1950s, Mississippi River navigation and flood protection levees, and salinity changes. Natural factors contributing to these habitat changes include eustatic sea-level rise and geological compaction, which appear to have remained relatively constant this century, although variation does occur. These four hypotheses were tested using data on land-to-water changes in 15-min quadrangle maps inventoried for four intervals between the 1930s and 1990. …

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The Prosecutor V. Dusko Tadic: An Appraisal Of The First International War Crimes Trial Since Nüremberg, Michael P. Scharf Feb 1997

The Prosecutor V. Dusko Tadic: An Appraisal Of The First International War Crimes Trial Since Nüremberg, Michael P. Scharf

Faculty Publications

No abstract provided.

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The Law Of Above Averages: Leveling The New Genetic Enhancement Playing Field, Maxwell J. Mehlman Feb 1997

The Law Of Above Averages: Leveling The New Genetic Enhancement Playing Field, Maxwell J. Mehlman

Faculty Publications

In this article, I will explore some of the legal implications of this emerging technology-the technology of genetic enhancement. Specifically, I will discuss how the law might respond to two related consequences: an increase in social inequality, and the

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Dynamic Correlations In Porous Media, J.C. Lee Feb 1997

Dynamic Correlations In Porous Media, J.C. Lee

Faculty Publications

When binary liquid mixtures are infused into various random porous media, past experiment have shown that different media affect the dynamic correlations of concentration fluctuations in different ways. Vycor glasses of relatively small pore size and dilute gels allow the exponential bulk mode to remain in the final ensemble average, but Vycor glasses of vary large pore size do not. We take this to mean that the relaxation time of the bulk mode is spatialIy homogeneous in the two former media but heterogeneous in the latter media. Thus we search for a heterogeneous dynamic mode with an Ising model. We …

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Teaching Electromagnetic Field Theory Using Differential Forms, Karl F. Warnick, Richard H. Selfridge, David V. Arnold Feb 1997

Teaching Electromagnetic Field Theory Using Differential Forms, Karl F. Warnick, Richard H. Selfridge, David V. Arnold

Faculty Publications

The calculus of differential forms has significant advantages over traditional methods as a tool for teaching electromagnetic (EM) field theory. First, films clarify the relationship between field intensity and flux density, by providing distinct mathematical and graphical representations for the two types of fields. Second, Ampere's and Faraday's laws obtain graphical representations that are as intuitive as the representation of Gauss's law. Third, the vector Stokes theorem and the divergence theorem become special cases of a single relationship that is easier for the student to remember, apply, and visualize than their vector formulations. Fourth, computational simplifications result from the use …

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United States V. Ross: Evolving Standards For Warrantless Searches, Lewis R. Katz Jan 1997

United States V. Ross: Evolving Standards For Warrantless Searches, Lewis R. Katz

Faculty Publications

The purpose of this Article is to examine the Ross decision and its implications for related fourth amendment areas. It will also discuss the automobile exception, the broad scope of warrantless searches, and the possible emergence of a public place-proba

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Effects Of Monomer Structure Ontheir Organization And Polymerizationin A Smectic Liquid Crystal, C. Allan Guymon, Erik N. Hoggan, Noal A. Clark, Thomas P. Rieker, David M. Walba, Christopher N. Bowman Jan 1997

Effects Of Monomer Structure Ontheir Organization And Polymerizationin A Smectic Liquid Crystal, C. Allan Guymon, Erik N. Hoggan, Noal A. Clark, Thomas P. Rieker, David M. Walba, Christopher N. Bowman

Faculty Publications

Photopolymerizable diacrylate monomers dissolved in fluid-layer smectic A and smectic C liquid crystal (LC) hosts exhibited significant spatial segregation and orientation that depend strongly on monomer structure. Small, flexible monomers such as 1,6-hexanediol diacrylate (HDDA) oriented parallel to the smectic layers and intercalated, whereas rod-shaped mesogen-like monomers such as 1,4-di-(4-(6-acryloyloxyhexyloxy)benzoyloxy)-2-methylbenzene (C6M) oriented normal to the smectic layers and collected within them. Such spatial segregation caused by the smectic layering dramatically enhanced photopolymerization rates; for HDDA, termination rates were reduced, whereas for C6M, both the termination and propagation rates were increased. These polymerization precursor structures suggest novel materials-design paradigms for gel …

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Analytical Models For Vehicle/Gap Distribution On Automated Highway Systems, Jacob Tsao, Randolph W. Hall, Indrajit Chatterjee Jan 1997

Analytical Models For Vehicle/Gap Distribution On Automated Highway Systems, Jacob Tsao, Randolph W. Hall, Indrajit Chatterjee

Faculty Publications

Highway congestion has in recent years become a pervasive problem for urban and suburban areas alike. The concept of Automated Highway Systems is based on the belief that integration of sensing, communication, and control technologies into vehicles and highways can lead to a large improvement in capacity and safety without requiring a significant amount of additional highway right-of-way. A fundamental determinant of Automated Highway Systems capacity is the vehicle-following rule, the rule that governs the behavior of vehicles traveling along a common lane (e.g., the spacing between any two longitudinally adjacent vehicles). Vehicle following affects the longitudinal capacity (achievable flow …

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Anomalous Flow Profile Due To The Curvature Effect On Slip Length, Alejandro Garcia, K. Tibbs, F. Baras Jan 1997

Anomalous Flow Profile Due To The Curvature Effect On Slip Length, Alejandro Garcia, K. Tibbs, F. Baras

Faculty Publications

No abstract provided.

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Multilevel Block Coded Modulation With Unequal Error Protection, Robert H. Morelos-Zaragoza, Marc P. C. Fossorier, Shu Lin, Hideki Imai Jan 1997

Multilevel Block Coded Modulation With Unequal Error Protection, Robert H. Morelos-Zaragoza, Marc P. C. Fossorier, Shu Lin, Hideki Imai

Faculty Publications

Multilevel block coded modulation (BCM) schemes with unequal error protection (UEP) are investigated. These schemes are based on unconventional set partitions that greatly reduce the error coefficients associated with multi-stage decoding of conventional BCM, at the expense of smaller intra-set distances.

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Tyrannous Lex, Thomas E. Baker Jan 1997

Tyrannous Lex, Thomas E. Baker

Faculty Publications

Professor Baker presents a fundamentally unique question. Including all of the legal opinions, statutes and administrative rules, how much law do we have? Is there way to calculate a “Gross Legal Product” for the United States and what effect does this “GLP” have on the U.S. economy? What about all of the secondary legal sources? What do they add, if anything, to our ability to understand all of the law that is constantly being produced? All these and more are the subject of Professor Baker’s article.

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Concatenated Multilevel Coded Modulation Schemes For Digital Satellite Broadcasting, Robert H. Morelos-Zaragoza, Hideki Imai Jan 1997

Concatenated Multilevel Coded Modulation Schemes For Digital Satellite Broadcasting, Robert H. Morelos-Zaragoza, Hideki Imai

Faculty Publications

The error performance of bandwith-efficient concatenated multilevel coded modulation (MCM) schemes for digital satellite broadcasting is analyzed. Nonstandard partitioning, multistage decoding, and outer Reed-Solomon (RS) codes are employed to provided unequal error protection capabilities.

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State Of Maine Property Tax Reform, Kim Bridgham, Annie Lunt Jan 1997

State Of Maine Property Tax Reform, Kim Bridgham, Annie Lunt

Faculty Publications

In January, 1997, Governor Angus King established a 10 person committee representing a broad cross-section of citizens interest to investigate what changes are needed in the Maine tax system to address the issue of high property taxes. The Governor's Select Committee on Property Tax Reform (the "Committee") was charged with examining how to reduce the burden of the property tax. The Committee was asked to recommend steps the State and local governments in Maine could take to reduce the burden of the property tax as well as changes in the way that the property tax is administered and collected to …

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The Economics Of Hardwood Management In The United States: 1950-1995, An Annotated Bibliography, Steven J. Goodson, Steven H. Bullard Jan 1997

The Economics Of Hardwood Management In The United States: 1950-1995, An Annotated Bibliography, Steven J. Goodson, Steven H. Bullard

Faculty Publications

This bibliography includes journal articles, published reports, conference proceedings articles, and academic theses and dissertations dated between 1950 and 1995 that concern economic aspects of managing hardwood tree species for timber production in the United States. The articles and reports were identified through keyword searches of computer databases available through the Mississippi State University computer system. Keywords used included individual species names as well as economic terms such as costs, returns, investment, and profit. The specific databases included the 1) USDA Agricultural Library - AGRICOLA CD-ROMs, 2) Colorado Alliance of Research Libraries System, 3) EBSCO Dissertation Abstracts, and 4) the …

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Impacts Of Climate Change On Net Productivity Of Coastal Waters: Implications For Carbon Budgets And Hypoxia, D Justic, N N. Rabalais, R. Eugene Turner Jan 1997

Impacts Of Climate Change On Net Productivity Of Coastal Waters: Implications For Carbon Budgets And Hypoxia, D Justic, N N. Rabalais, R. Eugene Turner

Faculty Publications

General circulation models predict that freshwater discharge from the Mississippi River (USA) to the coastal ocean would increase 20 % if atmospheric CO2 concentration doubles. Here we use a coupled physical-biological 2-box model to investigate the potential impacts of increased freshwater and nutrient inputs on the production and decay of organic matter in the coastal waters of the northern Gulf of Mexico. Model results for a doubled CO2 climate indicate that the annual net productivity of the upper water column (NP, 0 to 10 m) is likely to increase by 65 g C m(-2) yr(-1), relative to a 1985-1992 average …

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Electronic Discovery: Making Your Opponent's Computer A Vital Part Of Your Legal Team, Jay E. Grenig Jan 1997

Electronic Discovery: Making Your Opponent's Computer A Vital Part Of Your Legal Team, Jay E. Grenig

Faculty Publications

No abstract provided.

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American Innocence, Robert N. Strassfeld Jan 1997

American Innocence, Robert N. Strassfeld

Faculty Publications

The sad fact is that our relationship to torture and other atrocities is more complicated and less innocent than we or President Bush would like to believe. This article examines that relationship and the ways in which we try to distance ourselves from torture and atrocity. Part II briefly explores our notions of exceptionalism and innocence. Part III then turns to our efforts to evade responsibility for torture and atrocity. First, it briefly discusses ways in which we try to deny our own acts of torture and abuse through rhetorical misdirection and by relegating torture to the shadows. Part III's …

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Release Of Inorganic Material During Coal Devolatilization, Larry L. Baxter, Reginald E. Mitchell, Thomas H. Fletcher Jan 1997

Release Of Inorganic Material During Coal Devolatilization, Larry L. Baxter, Reginald E. Mitchell, Thomas H. Fletcher

Faculty Publications

Experimental results presented in this paper indicate that coal devolatilization products convectively remove a fraction of the nonvolatile components of inorganic material atomically dispersed in the coal matrix. Results from three facilities burning six different coals illustrate this mechanism of ash transformation and release from coal particles. Titanium is chosen to illustrate this type of mass release from coal particles on the basis of its low volatility and mode of occurrence in the coal. During moderate rates of devolatilization (104 K/s heating rate), no significant loss of titanium is noted. At more rapid rates of heating/devolatilization (105 K/s) …

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Soot In Coal Combustion Systems, Thomas H. Fletcher, Jinliang Ma, Jim Rigby, Alexander L. Brown, Brent W. Webb Jan 1997

Soot In Coal Combustion Systems, Thomas H. Fletcher, Jinliang Ma, Jim Rigby, Alexander L. Brown, Brent W. Webb

Faculty Publications

Soot is generated from coal when volatile matter, tar in particular, undergoes secondary reactions at high temperatures. A description of soot in coal flames allows better calculations of radiative transfer and temperatures in near-burner regions, which in turn allows more accurate predictions of NOx formation in coal-fired furnaces. Experiments are reviewed that examine the formation, agglomeration and properties of coal-derived soot, including pyrolysis experiments and combustion experiments. This review includes the types of experiments performed, the soot yields obtained, the size of the soot particles and agglomerates, the optical properties of soot, the relationship between coal-derived soot and soot …

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Radar Backscatter Measurement Accuracy For A Spaceborne Pencil-Beam Wind Scatterometer With Transmit Modulation, David G. Long, Michael W. Spencer Jan 1997

Radar Backscatter Measurement Accuracy For A Spaceborne Pencil-Beam Wind Scatterometer With Transmit Modulation, David G. Long, Michael W. Spencer

Faculty Publications

Scatterometers are remote sensing radars designed to measure near-surface winds over the ocean. The difficulties of accommodating traditional fan-beam scatterometers on spacecraft has lead to the development of a scanning pencil-beam instrument known as SeaWinds. SeaWinds will be part of the Japanese Advanced Earth Observing Satellite II (ADEOS-II) to be launched in 1999. To analyze the performance of the SeaWinds design, a new expression for the measurement accuracy of a pencil-beam system is required. In this paper the authors derive a general expression for the backscatter measurement accuracy for a pencil-beam scatterometer which includes the effects of transmit signal modulation …

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Report Of The Task Force On Rule 102(E) Proceedings: Rule 102(E) Sanctions Against Accountants, Dixie L. Johnson, John H. Sturc, Kenneth B. Winer, Jayne W. Barnard, Evan J. Falchuk, Jeffrey T. Gilleran, Thomas Gorman, David B. Hardison, Gloria K. Niemi, Thomas L. Riesenberg Jan 1997

Report Of The Task Force On Rule 102(E) Proceedings: Rule 102(E) Sanctions Against Accountants, Dixie L. Johnson, John H. Sturc, Kenneth B. Winer, Jayne W. Barnard, Evan J. Falchuk, Jeffrey T. Gilleran, Thomas Gorman, David B. Hardison, Gloria K. Niemi, Thomas L. Riesenberg

Faculty Publications

No abstract provided.

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