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991.
992.
O. Perru D. Verney F. Ibrahim O. Bajeat C. Bourgeois F. Clapier E. Cottereau C. Donzaud S. Du M. Ducourtieux S. Essabaa S. Galès D. Guillemaud-Mueller O. Hubert C. Lau H. Lefort F. Le Blanc A. C. Mueller J. Obert N. Pauwels J. C. Potier F. Pougheon J. Proust B. Roussière J. Sauvage O. Sorlin 《The European Physical Journal A - Hadrons and Nuclei》2006,28(3):307-312
The γ-ray de-excitations following the β-decay of 83Ga and the β-n decay of 84Ga have been studied. The radioactive species were produced using the PARRNe on-line mass-separator installed at the IPN Orsay
Tandem accelerator. Two γ-lines were attributed to 83Ge with the aid of β-γ and γ-γ coincidences. The Z identification of the γ-lines was provided by time analysis of a buid-up/decay cycle. The excited levels of 83Ge can be explained by the coupling of the single neutron state ν2d
5/2 to the first 2+ excitation of the 82Ge core. 相似文献
993.
Ibrahim A. Abbas Hamdy M. Youssef 《Archive of Applied Mechanics (Ingenieur Archiv)》2009,79(10):917-925
A general finite element model is proposed to analyze transient phenomena in thermoelastic solids. Youssef model of two-temperature
generalized magneto-thermoelasticity is selected for an homogenous, isotropic, conducting and elastic medium, which is subjected
to thermal shock, and a magnetic field with constant intensity acts tangent to the bounding plane. The numerical solution
of the nondimensional governing partial differential equations of the problem has been shown graphically. 相似文献
994.
995.
F. I. Mamedov 《Mathematical Notes》1993,53(1):50-58
Translated from Matematicheskie Zametki, Vol. 53, No. 1, pp. 68–82, January, 1993. 相似文献
996.
B. Reussière F. Ibrahim P. Kilcher F. Le Blanc J. Oms J. Sauvage A. Wojtasiewicz 《Zeitschrift für Physik A Hadrons and Nuclei》1995,351(2):127-128
The decay of181Ir has been studied on-line with mass-separated sources from the ISOCELE facility. The level scheme of181 Os has been established. The isomeric state has been located at 48.9 keV above the ground state. Thus the isomeric and ground states are identified as the 7/2?(T1/2 =2.7 m) and 1/2?(T1/2=105 m) levels respectively. 相似文献
997.
Neutron Activation Analysis (NAA) and Inductively Coupled Plasma (ICP) spectrometry were used to determine the concentration of trace metals in marine bivalveAnadara
granosa. A total of 11 elements: Mg, Cl, Mn, K, Se, Br, Zn, Co, Fe, Rb, Cd and Cu were detected. Analyses were performed to examine the relationship between metal concentration and body weight. Results from both techniques show linear relationship between total metal concentration and body weight. 相似文献
998.
999.
The optimal control of an elastically connected rectangular plate–membrane system by point-wise actuators is considered. Problems of the type are of significant practical interest in most real mechanical structures widely used in aeronautical, civil, naval, and mechanical engineering. An index of performance is formulated, which consists of a modified energy functional of the two coupled structure at a specified time and penalty functions involving the point control actuators. Necessary conditions of optimality are derived in the form of independent integral equations which lead to explicit expressions for the point-wise actuators. The results are applied to a specific problem, and numerical results are given that reveal the effectiveness of the proposed control mechanism. 相似文献
1000.