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排序方式: 共有69条查询结果,搜索用时 31 毫秒
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Phelps T. J. Siegrist R. L. Korte N. E. Pickering D. A. Strong-Gunderson J. M. Palumbo A. V. Walker J. F. Morrissey C. M. Mackowski R. 《Applied biochemistry and biotechnology》1994,45(1):835-845
Applied Biochemistry and Biotechnology - Soil column studies were used to evaluate petroleum hydrocarbon (PHC) remediation in soils from Kwajalein Atoll. Treatments included controls, and... 相似文献
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Noel Kong Rong Yi Sarah Zhao Jasmeet Sandhu Geoffrey Lam Devan Loganathan Barbara Morrissey 《Journal of separation science》2014,37(21):3015-3023
A sensitive hydrophilic interaction liquid chromatography coupled with tandem mass spectrometry method was developed and validated for the simultaneous detection and quantification of etilefrine and oxilofrine in equine blood plasma and urine. The method is highly sensitive and specific with good precision and accuracy. In plasma the limit of detection and limit of quantification are 0.03 and 0.1 ng/mL, respectively, for both analytes. In urine the limit of detection and limit of quantification are 0.3 and 1 ng/mL, respectively, for both analytes. The suitability of the method for doping control analysis in equine species is demonstrated by analyzing postadministration samples collected after a single intravenous administration of 50 mg etilefrine to a standardbred mare. Etilefrine was detected up to 120 h in urine and up to 48 h in plasma. Etilefrine is highly conjugated in equine urine whereas it exists in the free form in equine plasma. Therefore, enzyme hydrolysis prior to sample preparation is recommended for the detection and quantification of etilefrine and oxilofrine in equine urine. 相似文献
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D.J. Morrissey 《The European Physical Journal A - Hadrons and Nuclei》2002,15(1-2):105-108
The physics opportunities made possible by beams of rare isotopes are among the richest available in nuclear science. The
rare-isotope accelerator (RIA) now under development is an innovative accelerator that will define the state of the art for
all such facilities. A novel aspect of the RIA project is the conversion of the most intense high-energy heavy-ion beams into
both fast and reaccelerated exotic beams. Along with target fragmentation in next-generation high-power ISOL targets, RIA
will use projectile fragmentation in a high-energy separator/gas-filled ion collector system to provide an extensive range
of thermalized ions for reacceleration. In addition, a second high-energy separator will provide the same or larger range
of ions for high-energy experiments. A brief overview of the RIA accelerator concept, the layout of the facility, and production
techniques will be given along with information on the present R&D efforts in gaseous-ion collection.
Received: 21 March 2002 / Accepted: 16 May 2002 / Published online: 31 October 2002
RID="a"
ID="a"e-mail: morrissey@nscl.msu.edu 相似文献
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Two numerical procedures for finding the acoustic eigenvalues in the rectangular room with arbitrary (uniform) wall impedances are developed. One numerical procedure applies Newton's method. Here, starting with soft walls, the eigenvalues are found by increasing the impedances of each wall pair in small increments up to the terminal impedances. Another procedure poses the eigenvalue problem as one of homotopic continuation from a non-physical reference configuration in which all eigenvalues are known and obvious. The continuation is performed by the numerical integration of two differential equations. The latter procedure was found to be faster and finds all possible solutions. The set of eigenvalues allowed the room modal natural frequencies and damping constants to be obtained. From sound decays measured in a hard-walled rectangular room, and from the collective-modal-decay curve, the impedances of the hard walls are estimated. These are then used to find the reverberation times of the modes in the room with the floor lined with sound absorbing material of known acoustic impedance. It was found that a single reverberation time, for all modes, is only supported in the rectangular room with hard walls and at the higher frequency bands, consistent with Sabine's theory, which assumes a diffuse sound field. In the rectangular room with hard walls and at the lower frequency bands, and in the rectangular room with the floor lined with sound absorbing material and for all frequency bands, modes with rather distinctive reverberation times may produce sound decays not always consistent with Sabine's prediction. 相似文献
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R. Pfaff B. M. Young W. Benenson J. Clayton D. J. Morrissey N. A. Orr T. Reposeur M. Thoennessen J. A. Winger 《Zeitschrift für Physik A Hadrons and Nuclei》1993,347(1):67-70
A comparison has been made between the production of high energy (E γ≧30 MeV)γ rays from the bombardment of124Sn and112Sn targets withE/A= 10 MeV12C ions. The results are well explained by then-p bremsstrahlung model and do not indicate the need for any new processes. 相似文献
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D.J. Morrissey W. Benenson E. Kashy B. Sherrill A.D. Panagiotou R.A. Blue R.M. Ronningen J. van der Plicht H. Utsunomiya 《Physics letters. [Part B]》1984,148(6):423-427
An effective temperature inferred from the slope of kinetic energy spectra of the emitted fragments is not reflected in the relative populations of excited states of the emitted nuclei. We found that the excited state populations of 6Li, 7Li and 7Be emitted near 90° in the lab from the reaction of 490 MeV 14N with Ag are significantly lower than those expected on the basis of their effective temperature. 相似文献