Digital Commons Network^™

Selective Excitation And Thermal Quenching Of The Yellow Luminescence Of Gan, John S. Colton, P. Y. Yu, K. L. Teo, E. R. Weber, P. Perlin, I. Grzegory, K. Uchida

Faculty Publications

We report the observation of narrower structures in the yellow luminescence of bulk and thin-film n-type GaN, using the technique of selective excitation. These fine structures exhibit thermal quenching associated with an activated behavior. We attribute these fine structures to phonons and electronic excitations of a shallow donor-deep acceptor complex, and determine its activation energy for delocalization. Our results suggest that in addition to distant donor-acceptor pairs, the yellow luminescence can also involve emission complexes of shallow donors and deep acceptors.

Thermodynamic Model And The Controlling Variables Of Phosphate Lattice Loss, Mohammad Abutayeh

USF Tampa Graduate Theses and Dissertations

A thermodynamic model was developed based upon five equilibrium reactions to predict the limits of distribution of phosphates between the liquid and the solid phases in a reactor used to extract phosphoric acid from phosphate rock. A computer code was generated to carry out different simulations of the model using several inputs of temperatures and liquid phase sulfuric acid contents. Ideal Solution, Debye-Hückel, and Robinson-Guggenheim-Bates electrolyte activity coefficient models were employed alternately in each simulation to complete the thermodynamic model and the outputs were compared to one another.

Experimental data of equilibrium constants were regressed to adjust the values of …

The State Of Utah, Plaintiff/Appellee, V. Philip E. Hollen, Defendant/Appellant : Reply Brief Of Appellant

Utah Appeals Court Briefs

Appeal from a judgment of conviction for one count of Aggravated Robbery, a first degree felony in violation of Utah Code Ann. § 76-6-302 (1995), with firearm enhancement, and two counts of Aggravated Assault, a third degree felony in violation· of Utah Code Ann. § 76-5-103 (Supp. 1998), in the Third Judicial District Court in and for Salt Lake County, State of Utah, the Honorable Sandra Peuler, Judge, presiding.

1999-2000 Master Class "Playing To Win" - Sergiu Schwartz (Violin), Sergiu Schwartz, Gabrielle Fink, Daniel Andai, Ann Fink, Julian Killkneen, Tao Lin

Master Classes

No abstract provided.

Electron Injection By Dephasing Electrons With Laser Fields, E. Dodd, J.K. Kim, Donald P. Umstadter

Donald Umstadter Publications

The authors seek to review injection concepts for plasma based acceleration. It is shown that regardless of injection mechanism, resultant beams will be similar due to wave structure. Also, most schemes employ the same basic processes, namely the dephasing of electrons by laser fields, and can thus be analyzed with similar approaches.

Acceleration Of Electrons In A Self-Modulated Laser Wakefield, Shouyuan Chen, M. Krishnan, Anatoly Maksimchuk, Donald P. Umstadter

Donald Umstadter Publications

Acceleration of electrons in a self-modulated laser-wakefield is investigated. The generated electron beam is oberved to have a multi-component beam profile and its energy distribution undergoes discrete transitions as the conditions are varied. These features can be explained by simple simulations of electron propagation in a 3-D plasma wave.

Otter Realm, November 22, 1999, Vol. 5 No. 7, California State University, Monterey Bay

The Otter Realm

CSUMB's Official but Secret Definition of Multiculturalism -- Skidmore College Official Disposes of 1,000 Copies of Student Newspaper -- 'Multiculturalism': Where Did It Come From? -- CSUMB Student Voice Takes a Stand -- "What Does 'Multiculturalism' Mean to You?" -- Educational Opportunity Program Struggles to Grow at CSUMB -- Facets of Our World: Multiculturalism -- Santos and Santos: Packed with Controversial Symbolism -- CSUMB Soccer Teams End Season With Style!

Evaluation Of Energy Efficient Improvements To Portable Classrooms In Florida, Florida Solar Energy Center, Michael Callahan

FSEC Energy Research Center®

Florida has over 25,000 portable classrooms in use around the state. Energy costs for these structures exceed $20 million a year - or about 11% of all energy-related expenditures for educational facilities. Research has also shown interior ventilation rates in these classrooms typically fall far below the recommended levels in ASHRAE Standard 62-1989.

To explore ways in which costs might be reduced and the physical learning environment improved, we conducted a two year experiment in two highly instrumented portable classrooms at Silver Sands Middle School in Volusia County. A series of retrofits, aimed to cut energy use and improve ventilation …

The Weekly Challenger, November 20, 1999, The Weekly Challenger, Et Al

Weekly Challenger Newspaper Collection

The November 20, 1999, issue of The Weekly Challenger.

Subsidence, Mixing, And Denitrification Of Arctic Polar Vortex Air Measured During Polaris, M. Rex, R. J. Salawitch, G. C. Toon, B. Sen, J. J. Margitan, G. B. Osterman, J. F. Blavier, R. S. Gao, Stephen G. Donnelly Ph.D., E. Keim, J. Neuman, D. W. Fahey, C. R. Webster, D. C. Scott, R. L. Herman, R. D. May, E. J. Moyer, M. R. Gunson, F. W. Irion, A. Y. Chang, C. P. Rinsland, T. P. Bui

Chemistry Faculty Publications

We determine the degree of denitrification that occurred during the 1996-1997 Arctic winter using a technique that is based on balloon and aircraft borne measurements of NOy, N2O, and CH4. The NOy/N2O relation can undergo significant change due to isentropic mixing of subsided vortex air masses with extravortex air due to the high nonlinearity of the relation. These transport related reductions in NOy can be difficult to distinguish from the effects of denitrification caused by sedimentation of condensed HNO3. In this study, high-altitude balloon measurements are used to define the properties of air masses that later descend in the polar …

Reverie And The Image Making Process, Yea-Ryung Yoo

Theses

This thesis examines the creative process involved in the creation of a work of art; in this case, a painting. First, the artist creates a visual language, which becomes his instrument of communication. Then in the studio, the practical process activates visual representation of the language, communicated in brushstrokes. The visual image created through this process stimulates the artist emotionally, while imparting a sense of satisfaction to the viewer who understands that he has been brought into the aesthetic world created by the artist.

Faculty Senate Minutes - November 19, 1999, Usm Faculty Senate

Faculty Senate Minutes

No abstract provided.

The Buff And Blue Vol. 108, No. 11 November 19, 1999, Christopher Kaftan

1991-2000

No abstract provided.

Spartan Daily, November 19, 1999, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 113, Issue 58

The Echo: November 19, 1999, Taylor University

1999-2000 (Volume 87)

90’s Night Rocks – TU catalog changes planned for fall of 2000 – IS reports ResNet ‘running smoothly – Senate eyes new projects – Correction – World News – National News – State News – Searching the Ceilings – Guest Columnist: Happy Medium – Guest Columnist: The musings of an angsty duck – Letters to the editor – Editorial: The purpose of The Echo – Letter to the Editor – Handicapped accessibility on Taylor’s campus: Is Taylor prepared to help the disabled? – Wandering Wheels – Hypocrisy practices what it preaches – the reel enchilada – over the rhine …living …

Sandspur, Vol 106 No 10, November 19, 1999, Rollins College

The Rollins Sandspur

Rollins College student newspaper, written by the students and published at Rollins College. The Sandspur started as a literary journal.

Cellular Telephone V Zoning Bd. Of Ho-Ho-Kus

1999 Decisions

USDC for the District of New Jersey

The Tiger Vol. 93 Issue 10 1999-11-19, Clemson University

Tiger Newspapers

No abstract provided.

Lady Eagles Vs. Davis & Elkins / Eagles Vs. Virginia-Wise / Eagles Vs. St. Francis (Ind.), Morehead State University. Office Of Athletics.

Morehead State Sports Team Programs

The official game program from the November 19, 23 and 30, 1999 basketball games between Morehead State University and Davis & Elkins College, Virginia-Wise University and the University of St. Francis.

Flyer News, Vol. 47, No. 17 (Nov. 19, 1999), University Of Dayton

Flyer News

Student-run newspaper of the University of Dayton

Daily Eastern News: November 19, 1999, Eastern Illinois University

November

No abstract provided.

The Daily Egyptian, November 19, 1999, Daily Egyptian Staff

November 1999

No abstract provided.

Panther- November 1999 - Vol. Lxxvii, No.6, Prairie View A&M University

PV Panther Newspapers

No abstract provided.

The Hilltop 11-19-1999, Hilltop Staff

The Hilltop: 1990-2000

No abstract provided.

Soundings 1999-11-19 (V.12 No.23), N/A N/A

Soundings

No abstract provided.

The Murray Ledger And Times, November 19, 1999, The Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

Perceptions Of Couple Functioning Among Female Survivors Of Child Sexual Abuse, David Dilillo, Patricia J. Long

Department of Psychology: Faculty Publications

A sample of 51 college women retrospectively reporting a history of childhood sexual abuse and 91 women failing to report such a history was examined in order to investigate the relationship between victimization history and survivors' self-reports of functioning in adult intimate relationships. Specifically, relationship satisfaction, communication, and trust were examined in heterosexual relationships of at least six months' duration. As hypothesized, even when demographic differences between groups were controlled, survivors reported significantly less relationship satisfaction, poorer communication, and lower levels of trust in their partners than did women with no history of sexual abuse. The implications of these results …

The New Hampshire, Vol. 89 [90], No. 23 (Nov. 19, 1999), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire. This volume was printed as 89, but it is the 90th volume in the series. This was corrected in pencil.

Crusader, November, 19, 1999, College Of The Holy Cross

Student Newspapers

The student newspaper for the College of the Holy Cross in Worcester, Massachusetts. Articles include coverage of campus events and issues, sports, editorials and special features.

Volume 37, Number 13: November 19, 1999, University Of North Dakota

University Letter Archive

No abstract provided.