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Semiconductor Quantum Rods as Single Molecule FluorescentBiological Labels

Description: In recent years, semiconductor quantum dots have beenapplied with great advantage in a wide range of biological imagingapplications. The continuing developments in the synthesis of nanoscalematerials and specifically in the area of colloidal semiconductornanocrystals have created an opportunity to generate a next generation ofbiological labels with complementary or in some cases enhanced propertiescompared to colloidal quantum dots. In this paper, we report thedevelopment of rod shaped semicond… more
Date: May 29, 2006
Creator: Fu, Aihua; Gu, Weiwei; Boussert, Benjamine; Koski, Kristie; Gerion, Daniele; Manna, Liberato et al.
Partner: UNT Libraries Government Documents Department
open access

Comparative Studies of Proton Accelerators for High Power Applications.

Description: There are many applications requiring high power proton accelerators of various kinds. However, each type of proton accelerator can only provide beam with certain characteristics, hence the match of accelerators and their applications need careful evaluation. In this talk, the beam parameters and performance limitations of linac, cyclotron, synchrotron, and FFAG accelerators are studied and their relative merits for application in neutron, muon, neutrino, and ADS will be assessed in terms of be… more
Date: May 29, 2006
Creator: Weng, W. T.
Partner: UNT Libraries Government Documents Department
open access

Developing New Nanoprobes from Semiconductor Nanocrystals

Description: In recent years, semiconductor nanocrystal quantum dots havegarnered the spotlight as an important new class of biological labelingtool. Withoptical properties superior to conventional organicfluorophores from many aspects, such as high photostability andmultiplexing capability, quantum dots have been applied in a variety ofadvanced imaging applications. This dissertation research goes along withlarge amount of research efforts in this field, while focusing on thedesign and development of new n… more
Date: May 29, 2006
Creator: Fu, Aihua
Partner: UNT Libraries Government Documents Department
open access

Single-shot spatio-temporal measurements of high-field terahertzpulses

Description: The electric field profiles of broad-bandwidth coherentterahertz (THz) pulses, emitted by laserwakefield-accelerated electronbunches, are studied. The near-single-cycle THz pulses are measured withtwo single-shot techniques in the temporal and spatial domains. Spectraof 0 - 6 THz and peak fields up to ~; 0.4 MVcm-1 are observed. Themeasured field substructure demonstrates the manifestation ofspatio-temporal coupling at focus, which affects the interpretation ofTHz radiation as a bunch diagnosti… more
Date: May 29, 2006
Creator: van Tilborg, J.; Schroeder, C. B.; Toth, Cs.; Geddes, C. G. R.; Esarey, E. & Leemans, W. P.
Partner: UNT Libraries Government Documents Department
open access

Effects of sample mass and macrofossil type on radiocarbon dating of arctic and boreal lake sediments

Description: Dating lake sediments by accelerator mass spectrometry (AMS) {sup 14}C analysis of plant macrofossils overcomes one of the main problems associated with dating bulk sediment samples, the presence of old organic matter. Even so, many AMS dates from arctic and boreal sites appear to misrepresent the age of the sediment. To understand the nature of these apparent dating anomalies better, we conducted a series of {sup 14}C dating experiments using samples from Alaskan and Siberian lake-sediment cor… more
Date: May 29, 2006
Creator: Oswald, W. W.; Anderson, P. M.; Brown, T. A.; Brubaker, L. B.; Hu, F. S.; Lozhkin, A. V. et al.
Partner: UNT Libraries Government Documents Department
open access

Heat of Dissolution Measurements for CO2 in Mixed Alkanolamine Solvents

Description: The main objective of this project is to measure heat of dissolution of CO{sub 2} in carefully selected mixed alkanolamine solvent systems, and provide such directly measured data that might be used for efficient design of CO{sub 2} capture processes, or for better understanding of thermodynamics of CO{sub 2}-alkanolamine systems. Carbon dioxide is one of the major greenhouse gases, and the need for stabilization of its composition in earth's atmosphere is vital for the future of mankind. Altho… more
Date: May 29, 2006
Creator: Kabadi, Vinayak N.
Partner: UNT Libraries Government Documents Department
open access

SUMMARY OF GENERAL WORKING GROUP A+B+D: CODES BENCHMARKING.

Description: Computer simulation is an indispensable tool in assisting the design, construction, and operation of accelerators. In particular, computer simulation complements analytical theories and experimental observations in understanding beam dynamics in accelerators. The ultimate function of computer simulation is to study mechanisms that limit the performance of frontier accelerators. There are four goals for the benchmarking of computer simulation codes, namely debugging, validation, comparison and v… more
Date: May 29, 2006
Creator: WEI, J.; SHAPOSHNIKOVA, E.; ZIMMERMANN, F. & HOFMANN, I.
Partner: UNT Libraries Government Documents Department
open access

Improved Oil Recovery from Upper Jurassic Smackover Carbonates through the Application of Advanced Technologies at Womack Hill Oil Field, Choctaw and Clarke Counties, Alabama, Eastern Gulf Coastal Plan (Phase II)

Description: The principal research efforts for Phase II of the project were drilling an infill well strategically located in Section 13, T. 10 N., R. 2 W., of the Womack Hill Field, Choctaw and Clarke Counties, Alabama, and obtaining fresh core from the upper Smackover reservoir to test the feasibility of implementing an immobilized enzyme technology project in this field. The Turner Land and Timber Company 13-10 No. 1 well was successfully drilled and tested at a daily rate of 132 barrels of oil in Sectio… more
Date: May 29, 2006
Creator: Mancini, Ernest A.; Benson, Joe; Hilton, David; Cate, David & Brown, Lewis
Partner: UNT Libraries Government Documents Department
open access

Experimental Studies of Ibs (Intra-Beam Scattering) in Rhic and Comparison With Theory.

Description: A high-energy electron cooling system is presently being developed to overcome emittance growth due to Intra-beam Scattering (IBS) in RHIC. A critical item for choosing appropriate parameters of the cooler is an accurate description of the IBS. The analytic models were verified vs dedicated IBS measurements. Analysis of the 2004 data with the Au ions showed very good agreement for the longitudinal growth rates but significant disagreement with exact IBS models for the transverse growth rates. E… more
Date: May 29, 2006
Creator: Fedotov, A. V.; Fischer, W.; Tepikian, S. & Wei, J.
Partner: UNT Libraries Government Documents Department
open access

Analysis of the Magnetized Friction Force.

Description: A comprehensive examination of theoretical models for the friction force, in use by the electron cooling community, was performed. Here, they present their insights about the models gained as a result of comparison between the friction force formulas and direct numerical simulations, as well as studies of the cooling process as a whole.
Date: May 29, 2006
Creator: Fedotov, A. V.; Bruhwiler, D. L. & Sidorin, A. O.
Partner: UNT Libraries Government Documents Department
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