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排序方式: 共有49条查询结果,搜索用时 31 毫秒
1.
B. Kotliński D. Androić G. Backenstoss D. Bosnar H. Breuer H. Döbbeling T. Dooling M. Furić P.A.M. Gram N.K. Gregory A. Hoffart C.H.Q. Ingram A. Klein K. Koch J. Köhler M. Kroedel G. Kyle A. Lehmann A.O. Mateos K. Michaelian T. Petković M. Planinić R.P. Redwine D. Rowntree U. Sennhauser N. Šimičević R. Trezeciak H. Ullrich H.J. Weyer M. Wildi K.E. Wilson 《The European Physical Journal A - Hadrons and Nuclei》1998,1(4):435-445
The pion absorption reaction (π+,3
p
) on Ar was studied at pion energies of 70, 118, 162 and 239 MeV, and on N and Xe at 239 MeV. The 3p cross section with a 50 MeV cut on the missing energy is presented. The existence of an initial state interaction (ISI) component
to the reaction was investigated. The portion of the 3p cross section assigned to the ISI process is less than one half and at lower energies significantly so.
Received: 11 December 1997 相似文献
2.
A necessary and sufficient condition of correctness of extremal problems for lower semicontinuous functionals defined in metric spaces is given.This work was performed under the auspices of the Italian Research Council, Grant No. 115-3083-0-5179. 相似文献
3.
4.
Sunto Si danno dei teoremi di punto fisso der trasformazioni multivoche non compatte, definite in un sottoinsieme convesso e chiuso
di uno spazio lineare topologico, localmente convesso e di Hausdorff. Tali teoremi estendono alcuni noti risultati dovuti
a Darbo, Sadovskij, Daneš ed altri.
Work performed under the auspices of the National Research Council (C.N.R.).
Entrata in Redazione il 18 maggio 1971. 相似文献
Work performed under the auspices of the National Research Council (C.N.R.).
Entrata in Redazione il 18 maggio 1971. 相似文献
5.
6.
D.A. Bell J.A. Buchanan M.M. Calkin J.M. Clement W.H. Dragoset M. Furić K.A. Johns J.D. Lesikar H.E. Miettinen T.A. Mulera G.S. Mutchler G.C. Phillips J.B. Roberts S.E. Turpin 《Physics letters. [Part B]》1980,94(3):310-314
We have measured the asymmetry parameter A and the spin correlation parameter Ann in pp elastic scattering, using the Argonne ZGS polarized proton beam and a polarized proton target. Angular distributions of A and Ann for |t| ? 0.2 (GeV/c)2wereobtainedateightmomentabetween 1.10 and 2if2.75 GeV/c. We find significant structure in both the energy and t-dependence of Ann at these energies. At plab ≈ 1.34 GeV/cAnn reaches a very large value of about 0.8–0.9 near θcm = 90°. 相似文献
7.
Let M be a differentiable manifold and [0, )×MM be a C1 map satisfying the condition (0, p)=p for all pM. Among other results, we prove that when the degree (also called Hopf index or Euler characteristic) of the tangent vector field wMTM, given by w(p)=(/)(0, p), is well defined and nonzero, then the set (of nontrivial pairs) admits a connected subset whose closure is not compact and meets the slice {0}×M of [0, )×M. This extends known results regarding the existence of harmonic solutions of periodic ordinary differential equations on manifolds. 相似文献
8.
Iva Movre Šapić Vesna Volovšek Krešimir Furić Lahorija Bistričić Vladimir Dananić 《Macromolecular Symposia》2011,305(1):122-125
In this work we investigated the solidification of aminopropylsilanetriol dissolved in water (∼25%) under different conditions by Raman spectroscopy. The solidification was carried out at three different temperatures 8 °C, 23 °C and 60 °C. The influence of electromagnetic radiation on the polymerization process was also studied. Samples were held to solidify in dark and at UV (254 nm and 356nm) spectral range. In order to investigate the influence of the substrate on the resulting polymer structure, teflon, PVC, glass, brass and silica were used. Best ordered polymerized structure was achieved for samples deposited on plastics and solidified in dark, at room temperature. 相似文献
9.
M. Furi P. Nistri M. P. Pera P. L. Zezza 《Journal of Optimization Theory and Applications》1985,45(2):231-256
Sufficient conditions for the local and global controllability of general nonlinear systems, by means of controls belonging to a fixed finite-dimensional subspace of the space of all admissible controls, are established with the aid of topological methods, such as homotopy invariance principles. Some applications to certain classes of nonlinear control processes are given, and various known results on the controllability of perturbed linear systems are also derived as particular cases. 相似文献
10.
C. J. Martoff D. Počanić L. W. Whitlow S. S. Hanna H. Ullrich S. Cierjacks M. Furić T. Petković H. J. Weyer 《Czechoslovak Journal of Physics》1986,36(3):378-382
Preliminary results of measurements of proton energy spectra and search for coincidentp, n pair emission following negative muon capture in12C,16O,27Al are given. A very clear signal for proton emission is found, which can be exploited in future detailed studies.Presented at the symposium Mesons and Light Nuclei, Bechyn, Czechoslovakia, May 27–June 1, 1985.This work was supported in part by the U.S. National Science Foundation, grant 83-10044-A 2, the German Bundesministerium für Forschung und Technologie, the International Buero Julich, and the Swiss National Science Foundation. 相似文献