Digital Commons Network^™

Simulation Of Ultrashort Electron Pulse Generation From Optical Injection Into Wake-Field Plasma Waves, D.S. Dodd, J.K. Kim, Donald P. Umstadter

Donald Umstadter Publications

A laser-plasma-based source of relativistic electrons is described in detail, and analyzed in two dimensions using theoretical and numeric techniques. Two laser beams are focused in a plasma, one exciting a wake-field electron plasma wave while another locally alters some electron trajectories in such a way that they can be trapped and accelerated by the wave. Previous analyses dealt only with one-dimensional models. In this paper two-dimensional particle-in-cell simulations and analysis of single particle trajectories show that the radial wake field plays an important role. The simulation results are interpreted to evaluate the accelerated electron beam's properties and compared with …

Meiningens To Perform "Proof", University Relations

Campus News Archive

No abstract provided.

Utb/Tsc Board Of Trustees - Minutes - 2004-11-22, University Of Texas At Brownsville And Texas Southmost College. Vice President For Administration And Partnership Affairs.

UTB/TSC Archives - UTB/TSC Board of Trustees Meetings 2003-2011

No abstract provided.

November 22, 2004 Reporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

Electrical Properties And Raman Scattering Study Of Single Crystal Cs2nb4o11, Jianjun Liu, E. P. Kharitonova, Chun-Gang Duan, Wai-Ning Mei, Robert W. Smith, John R. Hardy

Chemistry Faculty Publications

We studied temperature dependence of complex capacitance, impedance, and polarized Raman spectra of single crystal Cs2Nb4O11. First, we observed a sharp-shaped peak at 165 ^oC in the complex capacitance, then found drastic changes in the Raman spectra in the same temperature range. Utilizing the pseudosymmetry search of structure space group, we attributed the observed anomalies to a structural change from the room temperature orthorhombic Pnn2 to another or- thorhombic Imm2. We also measured room temperature polarized Raman spectra in different symmetries of normal vibrations and assigned high wavenumber Raman bands to the internal vibrations of NbO6 octahedra and NbO4 …

The Bank Of Hoven (Plains Commerce Bank) V. Long Family Land And Cattle Company, Inc., Frank Pommersheim

Tribal Court Opinions Authored by Emeritus Professor of Law Frank Pommersheim

No abstract provided.

The Bg News November 22, 2004, Bowling Green State University

BG News (Student Newspaper)

The BGSU campus student newspaper. November 22, 2004. Volume 95-Issue 63.

Local Optical Properties, Electron Densities, And London Dispersion Energies Of Atomically Structured Grain Boundaries, Roger H. French

Faculty Scholarship

Quantitative analysis of spatially resolved valence electron energy-loss spectra shows strong physical property contrasts for Σ5 and near Σ13 grain boundaries in Fe-doped SrTiO3, resulting in London dispersion interaction energies of 14 to 50mJ/m2 between the adjacent grains. The determination of local physical properties of grain boundary cores and the appreciable contribution of long-range London dispersion to interface energies provides new information on formation and control of interfaces in materials.

The Structures Of C-C4F8 And C-C4F8¯ And The Adiabatic Electron Affinity Of C-C4F8, Gordon A. Gallup

Gordon Gallup Publications

Calculations at the 6311G(dps) level have been used to elucidate the structures of octafluorocyclobutane c-C₄F₈ and its negative ion c-C₄F₈^¯. With no empirical adjustments, we obtain 0.640 eV for the adiabatic electron affi nity of c-C₄F₈. This may be compared with an experimental value of 0.63 ± 0.05 eV from the FALP method. c-C₄F₈ has unusual features in that there is an increase in symmetry, D_2d to D_4h, in going from the neutral molecule to the negative ion, and …

Condition Monitoring Of Squirrel-Cage Induction Motors Fed By Pwm-Based Drives Using A Parameter Estimation Approach, Behrooz Mirafzal, F. Fateh, Chia-Chou Yeh, Richard J. Povinelli, Nabeel Demerdash

Electrical and Computer Engineering Faculty Research and Publications

Abstract:

A rotor condition monitoring technique is presented in this paper based on a parameter estimation approach. In this technique, the stator currents, voltages and motor speed are used as the input signals, where the outputs will be the rotor's inductance, resistance and consequently rotor time constant. This approach is verified by simulation of two different induction motor cases. These simulations are buttressed by experimental data obtained for a 2-hp induction motor in the case of healthy as well as one, three and five rotor bar breakages. In these tests, the induction motor was energized from a PWM-based drive, in …

Characterizing The Regulatory Environment Affecting The Forest Products Industry In California, Richard Thompson, Christopher Dicus

Natural Resources Management and Environmental Sciences

No abstract provided.

Nonlinear Parallel And Perpendicular Diffusion Of Charged Cosmic Rays In Weak Turbulence, Andreas Schalchi, John William Bieber, William H. Matthaeus, Gang Qin

Aerospace, Physics, and Space Science Faculty Publications

The problem of particle transport perpendicular to a magnetic background field is well known in cosmic-ray astrophysics. Whereas it is widely accepted that quasi-linear theory (QLT) of particle transport does not provide the correct results for perpendicular diffusion, it was assumed for a long time that QLT is the correct theory for parallel diffusion. In the current paper we demonstrate that QLT is in general also incorrect for parallel particle transport if we consider composite turbulence geometry. Motivated through the recent success of the so-called nonlinear guiding center theory of perpendicular diffusion, we present a new theory for parallel and …

The Nuclear Reddening Curve For Active Galactic Nuclei And The Shape Of The Infrared To X-Ray Spectral Energy Distribution, C. Martin Gaskell, René W. Goosmann, Robert R. J. Antonucci, David H. Whysong

Department of Physics and Astronomy: Faculty Publications

We present extinction curves derived from the broad emission lines and continua of samples of 72 radio-loud and 1018 radio-quiet active galactic nuclei (AGNs). The curves are significantly flatter in the UV than curves for the local interstellar medium. The reddening curves for the radio-quiet Large Bright Quasar Survey quasars are slightly steeper than those of the radio-loud quasars in the UV, probably because of additional reddening by dust farther out in the host galaxies of the former. The UV extinction curves for the radio-loud AGNs are very flat. This is explicable with slight modifications to standard Mathis-Rumpl-Nordsieck dust models: …

Mechanism And Control Of High-Intensity-Laser-Driven Proton Acceleration, T. Lin, K. Flippo, M. Rever, Anatoly Maksimchuk, Donald P. Umstadter

Donald Umstadter Publications

We discuss the optimization and control of laser-driven proton beams. Specifically, we report on the dependence of high-intensity laser accelerated proton beams on the material properties of various thin-film targets. Evidence of star-like filaments and beam hollowing (predicted from the electrothermal instability theory) is observed on Radiochromic Film (RCF) and CR-39 nuclear track detectors. The proton beam spatial profile is found to depend on initial target conductivity and target thickness. For resistive target materials, these structured profiles are explained by the inhibition of current, due to the lack of a return current. The conductors, however, can support large propagating currents …

Consultation With School Personnel, Susan M. Sheridan, Richard J. Cowan

Department of Educational Psychology: Faculty Publications

Consultation services in school settings is gaining increased recognition in research, training and practice, and is expanding to include a variety of related professionals as consultants (e.g., special educators, counseling psychologists, community psychologists, speech pathologists; Gutkin & Curtis, 1999). There also appears to be a trend in increased consultation between medical professionals (e.g., general physicians, pediatricians, psychiatrists) and school personnel. Whereas the term consultation may have broad meanings across educational, medical, and psychological practice, one common feature is that consultation generally consists of two or more people working together to address concerns regarding a third-party client (Sheridan & Kratochwill, 1991). …

Thermodynamic Modeling, Energy Equipartition, And Nonconservation Of Entropy For Discrete-Time Dynamical Systems, Wassim H. Haddad, Qing Hui, Sergey G. Nersesov, Vijaysekhar Chellaboina

Department of Electrical and Computer Engineering: Faculty Publications

We develop thermodynamic models for discrete-time large-scale dynamical systems. Specifically, using compartmental dynamical system theory, we develop energy flowmodels possessing energy conservation, energy equipartition, temperature equipartition, and entropy nonconservation principles for discrete-time, large-scale dynamical systems. Furthermore, we introduce a new and dual notion to entropy; namely, ectropy, as a measure of the tendency of a dynamical system to do useful work and grow more organized, and show that conservation of energy in an isolated thermodynamic system necessarily leads to nonconservation of ectropy and entropy. In addition, using the system ectropy as a Lyapunov function candidate, we show that our discrete-time, …

Faculty Senate Meeting Minutes Nov 19, 2004, A-State Faculty Senate

Faculty Senate Minutes

No abstract provided.

College Voice Vol. 28 No. 10, Connecticut College

2004-2005

No abstract provided.

Utb-Tsc Academic Senate Minutes 2004-11-19, University Of Texas At Brownsville And Texas Southmost College. Faculty Senate.

UTB/TSC Faculty Senate Minutes

No abstract provided.

Volume 42, Number 13: November 19, 2004, University Of North Dakota

University Letter Archive

No abstract provided.

Hess V. Indiana Revisited: A Panel Discussion With Case Participants (Video), Ralph F. Gaebler, Richard Vaughan

Maurer Law Events

On November 19th, 2004, a panel discussion was held in the Moot Court Room of the Indiana University-Bloomington School of Law. The topic of the discussion was the landmark United States Supreme Court case, Hess v. Indiana. The case is particularly relevant to the law school because two members of the faculty (Tom Schornhorst and Pat Baude) served as lawyers to the defendant Greg Hess. Additionally, the protest and arrest took place half a block from the law school in front of the University's administration building (Bryan Hall) in 1970.

Joining Professors Schornhorst and Baude on the panel are three …

The New Hampshire, Vol. 94 [95], No. 19 (Nov. 19, 2004, The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire. This volume was printed as 94, but it is the 95th volume in the series. This was corrected in pencil.

Multi-Event Crisis Management Using Non-Cooperative Repeated Games, Upavan Gupta

USF Tampa Graduate Theses and Dissertations

The optimal allocation of the resources to the emergency locations in the event of multiple crises in an urban environment is an intricate problem, especially when the available resources are limited. In such a scenario, it is important to allocate emergency response units in a fair manner based on the criticality of the crisis events and their requests. In this research, a crisis management tool is developed which incorporates a resource allocation algorithm. The problem is formulated as a game theoretic framework in which the crisis events are modeled as the players, the emergency response centers as the resource locations …

Daily Eastern News: November 19, 2004, Eastern Illinois University

November

No abstract provided.

The Institutionalization Of Service-Learning As A Pedagogical Tool For Campus Engagement At Public Versus Private Higher Education Institutions, Gwenda R. Greene

Thesis, Dissertations, Student Creative Activity, and Scholarship

Historically, higher education institutions have charged departments such as Academic Affairs with students' academic growth, and Student Affairs with their social and emotional development. Where and how these two come together to engage the holistic development of students will differ widely among institutions. This research premise was to investigate a method that could help bridge Academic Affairs and Student Affairs areas. A comprehensive review of the literature on educational reforms in higher education delineates service-learning as an innovative pedagogy for impacting the holistic development of students while enhancing the scholarship of engagement throughout the institutions. This research outlines theories, principles, …

Calcium Responses Of Chicken Trigeminal Ganglion Neurons To Methyl Anthranilate And Capsaicin, Michael L. Kirifides, Michael P. Kurnellas, Larry Clark, Bruce P. Bryant

United States Department of Agriculture Wildlife Services: Staff Publications

Using digital fluorescence imaging, we determined the effects of methyl anthranilate (MA), an avian irritant, and capsaicin (CAP), a mammalian irritant, on intracellular calcium ([Ca2+]i) in chicken trigeminal neurons. Concentration–response functions indicated that the threshold for inducing increases in [Ca2+]i was higher for CAP (30·mmol·l–1) than for MA (10·mmol·l–1). The maximum magnitudes of [Ca2+]i in response to MA and CAP were compared after normalization to 40·mmol·l–1 KCl. At equal concentrations (300·mmol·l–1), trigeminal neurons responded with a greater change in [Ca2+]i to MA (78% of KCl) than to CAP (43% of KCl). Furthermore, at 300·mmol·l–1, 48% of neurons responded to MA …

Eastern Progress - 18 Nov 2004, Eastern Kentucky University

Eastern Progress 2004-2005

No abstract provided.

University College And General Education Committee Report #2004-05-2, University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.

Bicistronic And Fused Monocistronic Transcripts Are Derived From Adjacent Loci In The Arabidopsis Genome, Jyothi Thimmapuram, Hui Duan, Lei Liu, Mary A. Schuler

Cyber Center Publications

Comparisons of full-length cDNAs and genomic DNAs available for Arabidopsis thaliana described here indicate that some adjacent loci are transcribed into extremely long RNAs spanning two annotated genes. Once expressed, some of these transcripts are post-transcriptionally spliced within their coding and intergenic sequences to generate bicistronic transcripts containing two complete open reading frames. Others are spliced to generate monocistronic transcripts coding for fusion proteins with sequences derived from both loci. RT-PCR of several P450 transcripts in this collection indicates that these extended transcripts exist side by side with shorter monocistronic transcripts derived from the individual loci in each pair. The …

Undergraduate Curriculum And Academic Policy Committee Minutes, November 18, 2004

Undergraduate Curriculum and Academic Policy Committee Minutes

Minutes from the Wright State University Faculty Senate Undergraduate Curriculum and Academic Policy Committee meeting held on November 18, 2004.