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2000

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Articles 1681 - 1710 of 6604

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Effective Surface Debye Temperature For Nimnsb.100. Epitaxial Films, C.N. Borca, Takashi Komesu, Hae-Kyung Jeong, Peter A. Dowben, D. Ristoiu, Ch. Hordequin, J. Pierre, J. P. Nozie`Res Jul 2000

Effective Surface Debye Temperature For Nimnsb.100. Epitaxial Films, C.N. Borca, Takashi Komesu, Hae-Kyung Jeong, Peter A. Dowben, D. Ristoiu, Ch. Hordequin, J. Pierre, J. P. Nozie`Res

Peter Dowben Publications

The surface Debye temperature of the NiMnSb (100) epitaxial films has been obtained using low energy electron diffraction, inverse photoemission, and core-level photoemission. The normal dynamic motion of the (100) surface results in a value for the effective surface Debye temperature of 145613 K. This is far smaller than the bulk Debye temperature of 31265 K obtained from wave vector dependent inelastic neutron scattering. The large difference between these measures of surface and bulk dynamic motion indicates a soft and compositionally different (100) surface. © 2000 American Institute of Physics. [S0003-6951(00)05127-5]


Quantum Computation Through Entangling Single Photons In Multipath Interferometers, John C. Howell, John A. Yeazell Jul 2000

Quantum Computation Through Entangling Single Photons In Multipath Interferometers, John C. Howell, John A. Yeazell

Mathematics, Physics, and Computer Science Faculty Articles and Research

Single-photon interferometry has been used to simulate quantum computations. Its use has been limited to studying few-bit applications due to rapid growth in physical size with numbers of bits. We propose a hybrid approach that employs n photons, each having L degrees of freedom yielding Ln basis states. The photons are entangled via a quantum nondemolition measurement. This approach introduces the essential element of quantum computing, that is, entanglement into the interferometry. Using these techniques, we demonstrate a controlled-NOT gate and a Grover's search circuit. These ideas are also applicable to the study of nonlocal correlations in many dimensions.


Deafdigest Gold: Vol. 4, No. 48 July 2, 2000, Barry Strassler Jul 2000

Deafdigest Gold: Vol. 4, No. 48 July 2, 2000, Barry Strassler

DeafDigest Gold 2000

No abstract provided.


Fresh Faces, Bright Futures, Merrimack College Jul 2000

Fresh Faces, Bright Futures, Merrimack College

Merrimack Magazine

No abstract provided.


The Web Magazine 2000, Summer, Matt Webber Jul 2000

The Web Magazine 2000, Summer, Matt Webber

The Web Magazine

The Web Magazine focuses on alumni news and campus events from Gardner-Webb College; now Gardner-Webb University. This issue reflects on the overall importance of teachers in relation to the college experience. The issue also focuses on the highlight of the GWU graduation as given by a Broyhill Honorary Doctorate. It is also important to recognize the different departments at GWU such as the office of Academic Affairs and their newly elected Assistant Vice President, Dr. Philip Williams. Along with Dr. Williams, the baseball team captured the regional championship, Dr. Paul Jolley was named SAC Hall of Fame, the School of …


Collegiate Life From Both Sides Of The Desk: South Dakota State University In The 1880s, Lisa R. Lindell Jul 2000

Collegiate Life From Both Sides Of The Desk: South Dakota State University In The 1880s, Lisa R. Lindell

Hilton M. Briggs Library Faculty Publications

The ninth of August 1888 was a day to remember in the history of South Dakota State University and the life of one of its first students. On that day, John Merton Aldrich and two classmates graduated from the institution then known as Dakota Agricultural College (DAC), becoming the first to complete the full college program. Excited and a little dazed, having just become engaged to be married the previous day, Aldrich still took time to recount the ceremonies in his diary, a record he had faithfully kept throughout his three years at DAC. Among his teachers and mentors at …


Effects Of Planetary Wave-Breaking On The Seasonal Variation Of Total Column Ozone, Terrence R. Nathan, Eugene C. Cordero, Long Li, Donald J. Wuebbles Jul 2000

Effects Of Planetary Wave-Breaking On The Seasonal Variation Of Total Column Ozone, Terrence R. Nathan, Eugene C. Cordero, Long Li, Donald J. Wuebbles

Faculty Publications, Meteorology and Climate Science

The effects of planetary wave breaking on the seasonal variation of total column ozone are investigated using a zonally averaged chemical-radiative-transport model of the atmosphere. The planetary wave breaking effects of zonal wavenumbers k=1 and k=2 are significant in the middle latitude stratosphere during Northern Hemisphere (NH) winter, whereas only wave k=1 is important during Southern Hemisphere (SH) winter. The mixing and induced meridional circulation due to the planetary wave breaking increases the seasonal variation of total column ozone in NH (SH) middle latitudes by ∼20% (∼10%).


Keith County Test-Hole Logs: Nebraska Water Survey Test-Hole Report No. 51, Robert F. Diffendal Jr., James W. Goeke Jul 2000

Keith County Test-Hole Logs: Nebraska Water Survey Test-Hole Report No. 51, Robert F. Diffendal Jr., James W. Goeke

Robert F. Diffendal, Jr., Publications

In 1930, the Conservation and Survey Division (CSD) of the University of Nebraska and the U.S. Geological Survey began a program of cooperative groundwater studies in Nebraska. Since then test drilling by use of rotary drilling equipment has been an integral part of that program. This report contains logs of all the test holes drilled in the county under the program as well as those drilled by the Conservation and Survey Division with financial assistance from other government agencies.

The maps in this report show the locations of all test holes drilled in the county since 1934 (Figure la–d).

Present …


The Bridge, Summer 2000, Roger Williams University Alumni Association Jul 2000

The Bridge, Summer 2000, Roger Williams University Alumni Association

Alumni Newsletters and Magazines

No abstract provided.


Trophic Dynamics And Pollution Effects In Cave Springs Cave, Arkansas, G. O. Graening, Arthur V. Brown Jul 2000

Trophic Dynamics And Pollution Effects In Cave Springs Cave, Arkansas, G. O. Graening, Arthur V. Brown

Arkansas Water Resources Center Technical Reports

No abstract provided.


Abstracts Of Papers Presented At The Seventy-Eight Annual Meeting, Virginia Academy Of Science, May 23-26, 2000, Radford University, Radford, Va Jul 2000

Abstracts Of Papers Presented At The Seventy-Eight Annual Meeting, Virginia Academy Of Science, May 23-26, 2000, Radford University, Radford, Va

Virginia Journal of Science

This document is a list of the abstracts of papers presented at the seventy-eighth meeting of the Virginia Academy of Science that took place at Radford University on May 23 through the 26th, 2000.


Why 95% And Two Sigma? A Theoretical Justification For An Empirical Measurement Practice, Hung T. Nguyen, Vladik Kreinovich, Chin-Wang Tao Jul 2000

Why 95% And Two Sigma? A Theoretical Justification For An Empirical Measurement Practice, Hung T. Nguyen, Vladik Kreinovich, Chin-Wang Tao

Departmental Technical Reports (CS)

The probability p(k) that the value of a random variable is far away from the mean (e.g. further than k standard deviations away) is so small that this possibility can be often safely ignored. It is desirable to select k for which the dependence of the probability p(k) on the distribution is the smallest possible. Empirically, this dependence is the smallest for k between 1.5 and 2.5. In this paper, we give a theoretical explanation for this empirical result.


On Representation And Approximation Of Operations In Boolean Algebras, I. R. Goodman, Vladik Kreinovich Jul 2000

On Representation And Approximation Of Operations In Boolean Algebras, I. R. Goodman, Vladik Kreinovich

Departmental Technical Reports (CS)

Several universal approximation and universal representation results are known for non-Boolean multi-valued logics such as fuzzy logics. In this paper, we show that similar results can be proven for multi-valued Boolean logics as well.


Extracting Fuzzy Sparse Rule Base By Cartesian Representation And Clustering, Yeung Yam, Vladik Kreinovich, Hung T. Nguyen Jul 2000

Extracting Fuzzy Sparse Rule Base By Cartesian Representation And Clustering, Yeung Yam, Vladik Kreinovich, Hung T. Nguyen

Departmental Technical Reports (CS)

Sparse rule base and interpolation have been proposed as possible solution to alleviate the geometric complexity problem of large fuzzy set. However, no formal method to extract sparse rule base is yet available. This paper combines the recently introduced Cartesian representation of membership functions and a mountain method-based clustering technique for extraction. A case study is included to demonstrate the effectiveness of the approach.


Julb2000, Robert Kelly Jul 2000

Julb2000, Robert Kelly

Robert Kelly Manuscripts

From July 2000 Robert Kelly Archive.


Jule2000, Robert Kelly Jul 2000

Jule2000, Robert Kelly

Robert Kelly Manuscripts

From July 2000 Robert Kelly Archive.


Julc2000, Robert Kelly Jul 2000

Julc2000, Robert Kelly

Robert Kelly Manuscripts

From July 2000 Robert Kelly Archive.


Summer 2000, Seattle University Jul 2000

Summer 2000, Seattle University

Seattle University News (Sun)

No abstract provided.


Modelling The Dynamics Of Abyssal Equator-Crossing Currents, P. F. Choboter, G. E. Swaters Jul 2000

Modelling The Dynamics Of Abyssal Equator-Crossing Currents, P. F. Choboter, G. E. Swaters

Mathematics

No abstract provided.


Wavelet-Based Approach For Structural Damage Detection, Z. Hou, Mohammad N. Noori, R. St. Amand Jul 2000

Wavelet-Based Approach For Structural Damage Detection, Z. Hou, Mohammad N. Noori, R. St. Amand

Office of the Dean (CENG) Scholarship

A wavelet-based approach is proposed for structural damage detection and health monitoring. Characteristics of representative vibration signals under the wavelet transformation are examined. The methodology is then applied to simulation data generated from a simple structural model subjected to a harmonic excitation. The model consists of multiple breakable springs, some of which may suffer irreversible damage when the response exceeds a threshold value or the number of cycles of motion is accumulated beyond their fatigue life. In cases of either abrupt or accumulative damages, occurrence of damage and the moment when it occurs can be clearly determined in the details …


The Prevalence-Based Need For Adapted Physical Education Teachers In The United States, Jiabei Zhang Jul 2000

The Prevalence-Based Need For Adapted Physical Education Teachers In The United States, Jiabei Zhang

Human Performance and Health Education Faculty Research

The purpose was to develop a method for projecting the need for adapted physical education (APE) teachers in the public schools in the United States. This method was derived from a prevalence-based model---dividing the nurn- ber of APE students enrolled by the APE student-teacher ratio and then sub- tracting the number of APE teachers hired. This model used the findings of Kelly and Gansneder (1998) that (a) 4% of the school population required APE services and (b) the overall national APE student-teacher ratio was 104: 1. The results revealed a need for 22,116 additional APE teachers nationwide as well as …


Rollins College Brevard Campus Class Schedule Summer 2000, Rollins College Jul 2000

Rollins College Brevard Campus Class Schedule Summer 2000, Rollins College

Brevard Campus Catalogs

No abstract provided.


Ua64/2 The Challenge: The Newsletter Of The Center For Gifted Studies (No. 5, Summer 2000), Center For Gifted Studies, Tracy Inman Editor Jul 2000

Ua64/2 The Challenge: The Newsletter Of The Center For Gifted Studies (No. 5, Summer 2000), Center For Gifted Studies, Tracy Inman Editor

Gifted Studies Publications

No abstract provided.


Ua11/1 On Campus Vol. 10, No. 4, Wku Public Affairs Jul 2000

Ua11/1 On Campus Vol. 10, No. 4, Wku Public Affairs

WKU Administration Documents

Magazine created for WKU faculty and staff.


Smokejumper Magazine, July 2000, National Smokejumper Association, Gregg Phifer, Neil Shier Jul 2000

Smokejumper Magazine, July 2000, National Smokejumper Association, Gregg Phifer, Neil Shier

Smokejumper and Static Line Magazines

This issue of the National Smokejumper Association (NSA) Smokejumper Magazine contains the following articles: Jumping into History (1949 Washington DC jump), Bob Caldwell profile, My Brush with History-CPS Smokejumpers (Gregg Phifer), Casual Reflections (Neil Shier). Smokejumper Magazine continues Static Line, which was the original title of the NSA quarterly magazine.


Primate Numerical Competence: Contributions Toward Understanding Nonhuman Cognition, Sarah T. Boysen, Karen I. Hallberg Jul 2000

Primate Numerical Competence: Contributions Toward Understanding Nonhuman Cognition, Sarah T. Boysen, Karen I. Hallberg

Sentience Collection

Nonhuman primates represent the most significant extant species for comparative studies of cognition, including such complex phenomena as numerical competence, among others. Studies of numerical skills in monkeys and apes have a long, though somewhat sparse history, although questions for current empirical studies remain of great interest to several fields, including comparative, developmental, and cognitive psychology; anthropology; ethology; and philosophy, to name a few. In addition to demonstrated similarities in complex information processing, empirical studies of a variety of potential cognitive limitations or constraints have provided insights into similarities and differences across the primate order, and continue to offer theoretical …


Primate Numerical Competence: Contributions Toward Understanding Nonhuman Cognition, Sarah T. Boysen, Karen I. Hallberg Jul 2000

Primate Numerical Competence: Contributions Toward Understanding Nonhuman Cognition, Sarah T. Boysen, Karen I. Hallberg

Sentience Collection

Nonhuman primates represent the most significant extant species for comparative studies of cognition, including such complex phenomena as numerical competence, among others. Studies of numerical skills in monkeys and apes have a long, though somewhat sparse history, although questions for current empirical studies remain of great interest to several fields, including comparative, developmental, and cognitive psychology; anthropology; ethology; and philosophy, to name a few. In addition to demonstrated similarities in complex information processing, empirical studies of a variety of potential cognitive limitations or constraints have provided insights into similarities and differences across the primate order, and continue to offer theoretical …


Virginia Junior Academy Of Science Awards Presented At Radford University May 2000 Jul 2000

Virginia Junior Academy Of Science Awards Presented At Radford University May 2000

Virginia Journal of Science

Awards presented by the Virginia Academy of Science in May 2000.


Status Survey Of Aquatic Cave Fauna In Arkansas, G. O. Graening, Arthur V. Brown Jul 2000

Status Survey Of Aquatic Cave Fauna In Arkansas, G. O. Graening, Arthur V. Brown

Arkansas Water Resources Center Technical Reports

No abstract provided.


Dimensionality Reduction Using Genetic Algorithms, Michael L. Raymer, William F. Punch, Erik D. Goodman, Leslie A. Kuhn, Anil K. Jain Jul 2000

Dimensionality Reduction Using Genetic Algorithms, Michael L. Raymer, William F. Punch, Erik D. Goodman, Leslie A. Kuhn, Anil K. Jain

Kno.e.sis Publications

Pattern recognition generally requires that objects be described in terms of a set of measurable features. The selection and quality of the features representing each pattern affect the success of subsequent classification. Feature extraction is the process of deriving new features from original features to reduce the cost of feature measurement, increase classifier efficiency, and allow higher accuracy. Many feature extraction techniques involve linear transformations of the original pattern vectors to new vectors of lower dimensionality. While this is useful for data visualization and classification efficiency, it does not necessarily reduce the number of features to be measured since each …