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  • 2000-2004  (6)
  • 1970-1974  (6)
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  • 1
    Electronic Resource
    Electronic Resource
    Performance of an advanced elliptically polarized undulator with shimming : Papers from the 12th National Synchrotron Radiation Instrumentation Conference (2002)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 73 (2002), S. 1436-1439 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A 4-m-long elliptically polarizing undulator (EPU5.6) device with an Apple-II structure is installed in the Synchrotron Radiation Research Center storage ring. This is the longest EPU device with an Apple-II structure worldwide. The errors of the magnet construction and the assembly process are among the several factors that can degrade the spectral performance. This study describes the mechanical design concept and construction that reduce magnetic field errors to keep high performance of the magnet. The electron orbit distortion in various polarization radiation modes is discussed with reference to a global feedback system and a feed forward table with following gap and phase. The beam dynamic effects are also investigated when the phase and magnetic gap are changed. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1445486
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  • 2
    Electronic Resource
    Electronic Resource
    A systematic study on the pulsed wire system for magnetic field measurements on the long undulator with high field : Papers from the 12th National Synchrotron Radiation Instrumentation Conference (2002)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 73 (2002), S. 1430-1432 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The pulsed wire method for magnetic field measurement has been developed by several groups. In most cases the thin wires were used and only the short magnets were measured to ignore the dispersion due to stiffness of the wires. In the application to the long insertion devices, a lot of spurious signals occurred and contaminated the normal field signals. In this article we demonstrate a new approach to applying the pulsed wire method to a long insertion undulator with a high field. Thick wire is used instead. Then we can cancel the dispersion and trace back the normal field signal by using the fast Fourier transform calculation. The results are quite comparable to Hall probe measurement. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1436542
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The new proton pump inhibitor esomeprazole is effective as a maintenance therapy in GERD patients with healed erosive oesophagitis: a 6-month, randomized, double-blind, placebo-controlled study of efficacy and safety (2001)
    Oxford UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 15 (2001), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Esomeprazole, the S-isomer of omeprazole, is the first proton pump inhibitor to be developed as an optical isomer. In patients with erosive oesophagitis, esomeprazole has produced significantly greater healing rates and improved symptom resolution vs. omeprazole.〈section xml:id="abs1-2"〉〈title type="main"〉Aim:This study assesses the efficacy of esomeprazole for preventing relapse in patients with healed oesophagitis.〈section xml:id="abs1-3"〉〈title type="main"〉Methods:In this 6-month US multicentre randomized double-blind placebo-controlled trial, 375 Helicobacter pylori-negative patients with endoscopically healed oesophagitis received esomeprazole 40 mg, 20 mg, 10 mg, or placebo once daily. The primary efficacy end-point was maintenance of healing at 6 months. Secondary end-points assessed changes in symptoms, and long-term safety and tolerability.〈section xml:id="abs1-4"〉〈title type="main"〉Results:Significantly (P 〈 0.001) more patients remained healed with esomeprazole 40 mg (87.9%), 20 mg (78.7%), or 10 mg (54.2%), than with placebo (29.1%). Relapse, when it occurred, was later with esomeprazole. Sustained resolution of heartburn was observed in the 40 mg and 20 mg groups; there was a high correlation between absence of heartburn and maintenance of healing. Adverse effects were mild, infrequent and not significantly different between groups.〈section xml:id="abs1-5"〉〈title type="main"〉Conclusions:Esomeprazole is effective and well-tolerated in the maintenance of healing of erosive oesophagitis. Esomeprazole 40 mg and 20 mg offer significant clinical benefit to patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.2001.01024.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    REGIONAL WATER QUALITY MANAGEMENT BY THE GENERALIZED REDUCED GRADIENT METHOD (1973)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 9 (1973), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: : A river basin-wide water quality management system is considered. The river receives thermal as well as organic wastes. At-source treatment of these pollutants is imposed to control the basin-wide water quality. The related water quality standards are: the minimum DO concentration, the maximum allowable BOD concentration, the maximum allowable stream temperature, and the allowable rise in stream temperature. The general dynamic mathematical model representing water quality in streams and the thermal effects on BOD and DO concentrations is presented. The model is highly nonlinear in nature. The optimal management problem involving the model is solved by a recently developed nonlinear propgramming technique - the generalized reduced gradient (GRG) method. Comparison of results obtained by the GRG method vs. dynamic programming, and of results using a more realistic mathematical model vs. a simple model are presented. The analysis procedure can be applied to designing new and examining existing water quality programs, and to study the influence of alternate policies and constraints.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1973.tb05855.x
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  • 5
    Electronic Resource
    Electronic Resource
    WATER QUALITY CONTROL BY ARTIFICIAL AERATION OF STREAM RECEIVING THERMAL AND ORGANIC WASTE DISCHARGES (1973)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 9 (1973), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: : The purpose of this work is to study the installation of artificial aerators for water quality control of a stream which receives thermal and organic waste discharges. The location and numer of diffuser type aerators to be installed along the stream are determined so as to maintain the stream DO content above a certain minimum requirement (4 mg/l or 5 mg/l) for normal aquatic life. Effects of the stream velocity, upstream BOD concentration and rates of thermal and organic waste discharges to the stream are examined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1973.tb05812.x
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  • 6
    Electronic Resource
    Electronic Resource
    DIGITAL SIMULATION OF THE EFFECT OF THERMAL DISCHARGE ON STREAM WATER QUALITY (1973)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 9 (1973), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: A modified transient version of the Streeter-Phelps model along with the energy balance equation is employed to analyze the effects of waste heat discharge from power plants on stream water quality. Analysis is also made to examine the effects of the upstream water quality and stream velocity on the downstream DO concentration level. The resulting coupled nonlinear hyperbolic partial differential equations representing the energy, BOD and DO concentrations are solved by the method of characteristics and simulated on a digital computer. Final numerical results indicate that the allowable quantity of thermal discharge does heavily depend on the upstream quality.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1973.tb01791.x
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  • 7
    Electronic Resource
    Electronic Resource
    Physical and Sensory Characteristics of Chiffon Cake Prepared with Erythritol as Replacement for Sucrose (2003)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 68 (2003), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : The effects of erythritol on physical and sensory characteristics of chiffon cakes were studied. The results showed that chiffon cakes prepared with 25%, 50%, 75%, and 100% replacement of sucrose with erythritol were lighter in crust and crumb and less sweet in crumbs than those with sucrose. There were no differences in the specific gravity of cake batter, volume, and moisture content between cakes prepared with sucrose or erythritol. Results from sensory evaluation also showed no significant differences in crumb color, moistness, and tenderness for any cakes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2003.tb07027.x
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  • 8
    Electronic Resource
    Electronic Resource
    Charge radii of light and heavy mesons (2002)
    Springer
    The European physical journal 23 (2002), S. 585-590 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. We calculate the electromagnetic (EM) form factors of the pseudoscalar mesons in the light-front framework. Specifically, these form factors are directly extracted from the relevant matrix elements, instead of choosing the Breit frame. The results show that the charge radius of the meson is related to both the first and second longitudinal momentum square derivatives of the momentum distribution function. The static properties of the EM form factors and the heavy quark symmetry of the charge radii are checked analytically in the heavy quark limit. In addition, we use the Gaussian-type wavefunction to obtain the numerical results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100520200904
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  • 9
    Electronic Resource
    Electronic Resource
    Charge and transition form factors of light mesons in LFQM (2001)
    Springer
    The European physical journal 19 (2001), S. 105-111 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. The charge and transition form factors of pions ( $F_\pi$ , $F_{\pi\gamma}$ , and $F_{\pi\gamma^*}$ ) are studied in the light-front quark model (LFQM). We find that our results for $F_\pi$ and $F_{\pi\gamma}$ agree well with experiment. Furthermore, the mixing of $\eta$ and $\eta'$ is considered. We also calculate $F_{\eta\gamma}$ and $F_{\eta'\gamma}$ and compare them with the data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100520100584
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  • 10
    Electronic Resource
    Electronic Resource
    Surface renewal and penetration models in the transient state (1971)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 17 (1971), S. 154-160 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The transient models for some interphase transport processes have been developed based on the transient age distributions derived from the population balance. These models appear to represent physical reality more accurately than do the steady state models during the start-up period of the transport processes.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690170131
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