Zobrazeno 1 - 10
of 22
pro vyhledávání: '"L, Thorsell"'
Autor:
P. Lindman, L. Thorsell
Publikováno v:
IEEE Transactions on Power Electronics. 11:365-373
The design of modern decentralized power systems in telecommunication applications are increasingly realized by using distributed DC/DC power modules. Power modules are usually characterized by high switching frequencies, which enable the use of smal
Autor:
L. Thorsell, P. Lindman
Publikováno v:
Proceedings of Intelec 93: 15th International Telecommunications Energy Conference.
The design of modern decentralized power systems in telecommunication applications are normally realized by using distributed DC/DC power modules. Power modules are usually characterized by high switching frequencies which enables the use of small fe
Autor:
L. Thorsell, P. Lindman
Publikováno v:
10th International Telecommunications Energy Conference.
An n+1 redundant system using modular hybrid DC/DC converters connected in parallel where the normally associated isolation diodes are omitted is described. Reliability and efficiency analysis of the systems was performed, based on a comparison betwe
Autor:
L. Thorsell
Publikováno v:
12th International Conference on Telecommunications Energy.
The author considers different power distribution systems for telephone switching equipment. Described are central distribution, decentralized distribution with one converter per shelf, and decentralized distribution with distributed on-board supplie
Publikováno v:
Journal of assisted reproduction and genetics. 18(10)
The purpose was to determine whether the number of embryos available for transfer following IVF in women over age 39 predicted a successful pregnancy outcome.Retrospective analysis of 455 consecutive IVF cycles in womenor = 40 years of age.Few cycles
Autor:
Robert J. Deltete, David L. Thorsell
Publikováno v:
Journal of Chemical Education. 73:289
This article describes the very different personalities and scientific styles of the physicist Josiah Willard Gibbs and the chemist Wilhelm Ostwald.
Autor:
Fred B. Wampler, Edward K. Damon, Fu Su, David L. Thorsell, Jack G. Calvert, Jan W. Bottenheim
Publikováno v:
Chemical Physics Letters. 51:150-154
The phosphorescent lifetimes of SO2(3B1) molecules have been studied at excitation wavelength 2662 and 3631 A under high pressure conditions (1 torr ⩽ P ⩽ 400 torr) in the presence of foreign gases (CO2, CO and N2). The pressure saturation effect
Publikováno v:
The Journal of Chemical Physics. 61:3450-3458
Changes in the zero‐field splitting parameters of phosphorescent 1,2;5,6‐dibenzanthracene, phenanthrene, and naphthalene oriented in single‐crystal hosts have been determined at temperatures near 77°K upon perdeuterating the phosphorescent mol
Publikováno v:
Chemical Physics Letters. 49:305-311
The phosphorescence decay kinetics of SO 2 ( 3 B 1 ) molecules have been studied using laser excitation at discrete wave-lengths within both the first-allowed singlet and the “forbidden” triplet bands of SO 2 . The estimated collision-free lifeti
Publikováno v:
International Journal of Chemical Kinetics. 6:829-848
The chemical reactions of SO2(3B1) molecules with cis- and trans-2-butene have been studied in gaseous mixtures at 25°C by excitation of SO2 within the SO2(3B1) SO2(+, 1A1) ‘forbidden’ band using 3500–4100-A light. The initial quatum yields of