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41.
The 31P NMR spectra and structure of some compounds containing phosphonium ions in 25-oleum solution
25-oleum has proved to be an extremely useful solvent for recording the 31P NMR spectra of a variety of compounds containing phosphonium ions. Not only have data in very good agreement with previous solid state and solution results been obtained, but the structures of some solids containing mixtures of phosphorus (V) species have been ascertained for the first time. 相似文献
42.
Cherry M. L. Dabrowska A. Deines-Jones P. Dubinina A. J. Hołyński R. Jones W. V. Kolganova E. D. Olszewski A. Pozharova E. A. Sengupta K. Skorodko T. Yu. Smirnitski V. A. Szarska M. Waddington C. J. Wefel J. P. Wilczyńska B. Wolter W. 《Zeitschrift fur Physik C Particles and Fields》1994,63(4):549-556
Zeitschrift für Physik C Particles and Fields - We have investigated the particle production and fragmentation of nuclei participating in the interactions of 10.6 GeV/n gold nuclei in nuclear... 相似文献
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M. L. Cherry A. Da̧browska P. Deines-Jones A. J. Dubinina R. Hołyński W. V. Jones A. Olszewski K. Sengupta V. A. Smirnitski M. Szarska A. Trzupek C. J. Waddington J. P. Wefel B. Wilczynska H. Wilczynski W. Wolter B. Wosiek K. Woźniak 《Zeitschrift fur Physik C Particles and Fields》1997,73(3):449-454
The transverse momentum (pt) distributions of helium fragments from gold fragmentation on different nuclei of nuclear emulsion have been measured and a clear increase of average p t with target mass is seen. The p t distributions can be parameterized by a sum of three exponential functions of the form $\sim {\rm exp}(-p_{t}^{2}/B_{i})$ . The differences in p t distributions in interactions on different targets can be explained by different contributions of the three exponential functions. These contributions depend on the projectile breakup in the collision, and for a given degree of the projectile breakup do not depend on the target mass. 相似文献
46.
Savajols H Korichi A Ward D Appelbe D Ball GC Beausang C Beck FA Byrski T Curien D Dagnall P de France G Disdier D Duchêne G Erturk S Finck C Flibotte S Gall B Galindo-Uribarri A Haas B Hackman G Janzen VP Kharraja B Lisle JC Merdinger JC Mullins SM Pilotte S Prévost D Radford DC Rauch V Rigollet C Smalley D Smith MB Stezowski O Styczen J Theisen C Twin PJ Vivien JP Waddington JC Zuber K Ragnarsson I 《Physical review letters》1996,76(24):4480-4483
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W. E. Thrun C. E. White C. S. Lowe H. H. Willard N. K. Tang K. P. Young M. C. Lay S. J. Fainberg E. M. Tal S. P. Moltschanow H. Pinsl K. Steinhäuser G. B. Brook A. G. Waddington L. H. Callendar H. V. Churchill R. W. Bridges M. F. Lee und L. Moreau 《Fresenius' Journal of Analytical Chemistry》1939,117(1-2):69-72
Ohne Zusammenfassung 相似文献
48.
Accreditation of testing and calibration laboratories is the most frequently used type of accreditation. European Co-operation
for Accreditation (EA) as the European network of recognised national accreditation bodies covers accreditation of all types
of conformity assessment bodies. In Europe, the number of accredited testing and calibration laboratories covered under the
EA Multilateral Agreement is about 15,000 nowadays. 相似文献
49.
M.L. Cherry A. Dąbrowska P. Deines-Jones R. Hołyński B.S. Nilsen A. Olszewski M. Szarska A. Trzupek C.J. Waddington J.P. Wefel B. Wilczyńska H. Wilczyński W. Wolter B. Wosiek K. Woźniak 《The European Physical Journal C - Particles and Fields》1998,5(4):641-650
We have investigated the interactions of 10.6 GeV/n Au in nuclear emulsion. Two methods of separating interactions into those
with hydrogen, light (C,N,O) and heavy (Ag,Br) target nuclei were used, giving almost identical results, which strengthened
our confidence in the correctness of these methods. We also measured the angular distributions of singly and multiply charged
relativistic particles emitted from the interaction vertices and the charges of the multiply charged projectile fragments.
The fragmentation of the projectile Au nuclei and of the target nuclei were analyzed. The multiparticle production was studied
as a function of the mass of the target nucleus. The multiplicity and the pseudorapidity distributions of relativistic singly
charged particles were compared with the predictions of the RQMD Model.
Received: 22 April 1998 / Published online: 8 September 1998 相似文献
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