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in subjects: "Amplification"  
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ICF drivers: a comparison of some new entries and old standbys. Revision 1

Description: There has been a great deal of progress in recent years on the development of solid state and KrF lasers, light ion diodes, and heavy ion accelerators for use as drivers in inertial confinement fusion (ICF) facilities. Two relatively new entries in the ICF driver derby are the free electron laser (FEL) and the compact torus (CT). The status and remaining technological challenges of each potential driver are described. The author discusses driver performance criteria for various reactor applicat… more
Date: July 31, 1986
Creator: Hogan, W.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Uncharted Microbial World: Microbes and Their Activities in the Environment

Description: Microbes are the foundation for all of life. From the air we breathe to the soil we rely on for farming to the water we drink, everything humans need to survive is intimately coupled with the activities of microbes. Major advances have been made in the understanding of disease and the use of microorganisms in the industrial production of drugs, food products and wastewater treatment. However, our understanding of many complicated microbial environments (the gut and teeth), soil fertility, and b… more
Date: December 31, 2007
Creator: Harwood, Caroline & Buckley, Merry.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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WA80 BGO calorimetry electronics

Description: This paper describes instrumentation designed for BGO scintillator-based calorimetry of particles covering a very wide range of energies (from less than 50 MeV to 50 GeV). The instrumentation was designed to have a measurement accuracy of 0.1% over as much of the energy range as possible so the energy resolution of BGO would be the limiting factor. Two 1.5-cm{sup 2} photodiodes were used per 2.5 cm {times} 2.5 cm {times} 25 cm BGO crystal. Both a charge-sensitive preamplifier and a pulse proces… more
Date: October 31, 1991
Creator: Wintenberg, A. L.; Britton, C. L., Jr.; Ericson, M. N.; Maples, R. A.; Young, G. R. & Awes, T. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Design of a harmonic generation FEL experiment at BNL

Description: We present design parameters of a harmonic generation FEL experiment to be carried out at the Accelerator Test Facility (ATF) at BNL. This experiment out as a proof-of-principle for the proposed UV-FEL User`s Facility at BNL. In the experiment we plan to triple the frequency of a CO{sub 2} seed laser by utilizing two superconducting wigglers and a dispersive section. The first wiggler will be used in conjunction with the CO{sub 2} seed laser to generate a ponderomotive force that will bunch the… more
Date: December 31, 1991
Creator: Ben-Zvi, Ilan; Friedman, A.; Hung, C. M.; Ingold, G.; Krinsky, S.; Yang, K. M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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[An homologous recombination strategy to directly clone mammalian telemeres]. Progress report

Description: We have pursued three goals over the past year. The first involved determining whether the HARY vector could be used for homologous integration in the human genome. The second was to ascertain whether inserted sequences could be amplified in preference to the endogenous DHFR genes. The third was to determine if the HARY insertion could provide an anchor point for long range restriction mapping. The progress in each goal is described.
Date: December 31, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Rolling circle amplification of metazoan mitochondrialgenomes

Description: Here we report the successful use of rolling circle amplification (RCA) for the amplification of complete metazoan mt genomes to make a product that is amenable to high-throughput genome sequencing techniques. The benefits of RCA over PCR are many and with further development and refinement of RCA, the sequencing of organellar genomics will require far less time and effort than current long PCR approaches.
Date: July 31, 2005
Creator: Simison, W. Brian; Lindberg, D. R. & Boore, J. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Apparatus and method for extracting power from energetic ions produced in nuclear fusion

Description: This invention is comprised of an apparatus and method of extracting power from energetic ions produced by nuclear fusion in a toroidal plasma to enhance respectively the toroidal plasma current and fusion reactivity. By injecting waves of predetermined frequency and phase traveling substantially in a selected poloidal direction within the plasma, the energetic ions become diffused in energy and space such that the energetic ions lose energy and amplify the waves. The amplified waves are furthe… more
Date: December 31, 1993
Creator: Fisch, N. J. & Rax, J. M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
open access

Kinetic Alfven Waves at the Magnetopause--Mode Conversion, Transport and Formation of LLBL

Description: At the magnetopause, large amplitude, low-frequency (ULF), transverse MHD waves are nearly always observed. These waves likely result from mode conversion of compressional MHD waves observed in the magnetosheath to kinetic Alfven waves at the magnetopause where there is a steep gradient in the Alfven velocity [Johnson and Cheng, Geophys. Res. Lett. 24 (1997) 1423]. The mode-conversion process can explain the following wave observations typically found during satellite crossings of the magnetopa… more
Date: May 31, 2002
Creator: Johnson, Jay R. & Cheng, C. Z.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Spheromak Impedance and Current Amplification

Description: It is shown that high current amplification can be achieved only by injecting helicity on the timescale for reconnection, {tau}{sub REC}, which determines the effective impedance of the spheromak. An approximate equation for current amplification is: dI{sub TOR}{sup 2}/dt {approx} I{sup 2}/{tau}{sub REC} - I{sub TOR}{sup 2}/{tau}{sub closed} where I is the gun current, I{sub TOR} is the spheromak toroidal current and {tau}{sub CLOSED} is the ohmic decay time of the spheromak. Achieving high cur… more
Date: January 31, 2002
Creator: Fowler, T K; Hua, D D & Stallard, B W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Final Report BW Sample Collection& Preparation Device

Description: The objective of this project was to develop the technique needed to prepare a field collected sample for laboratory analysis and build a portable integrated biological detection instrument with new miniaturized and automated sample purification capabilities. The device will prepare bacterial spores, bacterial vegetative cells, and viral particles for PCR amplification.
Date: January 31, 2002
Creator: Koopman, R P; Belgrader, P; Meyer, G; Benett, W J; Richards, J B; Hadley, D R et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The oncogenic action of ionizing radiation on rat skin. Final progress report, May 1, 1990--April 30, 1992

Description: The multistage theory of carcinogenesis specifies that cells progress to cancer through a series of discrete, irreversible genetic alterations, but data on radiation-induced cancer incidence in rat skin suggests that an intermediate repairable alteration may occur. Data are presented on cancer induction in rat skin exposed to an electron beam (LET=0.34 keV/{mu}), a neon ion beam (LET=45) or an argon ion beam (LET=125). The rats were observed for tumors at least 78 weeks with squamous and basal … more
Date: December 31, 1992
Creator: Burns, F. J. & Garte, S. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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[One-step PCR sequencing]. Final report, July 1, 1994--August 31, 1997

Description: The author explored the use of a novel class of boronated nucleic acids, the boranophosphates, as an alternative, but complementary method to dideoxysequencing. Boranophosphates can be used to directly amplify and sequence single- or double-stranded DNA. Fragments are derived not from truncations during polymerase synthesis, but from insertion and digestion back to a boronated marker or delimiter that was incorporated during exponential amplification. The method, which the author calls Boronate… more
Date: December 31, 1997
Creator: Shaw, B.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Diode Laser System for Synchronous Photoinjection

Description: A laser system, which is composed of a gain switched diode seed laser and a single-pass diode optical amplifier, is used to drive the polarized electron source at Jefferson Lab. The system emits pulsed laser light synchronized to the accelerating cavity radio frequency (rf) at 1497 MHz or the third subharmonic, 499 MHz. The maximum average output power from the laser system is 500 mW and the optical pulse width is 60 to 80 ps. The laser system is compact and very reliable operating remotely for… more
Date: December 31, 1997
Creator: Poelker, M., Hansknecht, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Amplification of Xenon NMR and MRI by remote detection

Description: A novel technique is proposed in which a nuclear magneticresonance (NMR) spectrum or magnetic resonance image (MRI) is encoded andstored as spin polarization and is then moved to a different physicallocation to be detected. Remote detection allows the separateoptimization of the encoding and detection steps, permitting theindependent choice of experimental conditions, and excitation anddetection methodologies. In the first experimental demonstration of thistechnique, we show that NMR signal can… more
Date: March 31, 2003
Creator: Moule, Adam J.; Spence, Megan M.; Han, Song-I; Seeley, Juliette A.; Pierce, Kimberly L.; Saxena, Sunil et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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