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961.
Intranuclear cascading mechanism one of the important non-linear effects in high energy nucleusnucleus collisions is investigated. The data on multiplicity (n s ) and pseudorapidity (η) distributions of shower particles produced by32S and16O at 200A GeV,16O at 60A GeV,28Si at 14.5A GeV and He at ≈140A GeV are presented and compared with the string model VENUS, which takes into account the cascade interactions of secondary particles. The effect of the intranuclear collisions on the distributions of <η> versus <n s > is discussed for all the beams. 相似文献
962.
J. Goswamy A. Sharma D. Mehta B. Chand N. Singh P. N. Trehan P. Singh R. G. Pilley H. G. Devare R. K. Bhowmik C. R. Praharaj 《Zeitschrift für Physik A Hadrons and Nuclei》1992,344(2):233-234
High spin states in 120Xe, populated via107Ag(16O, p2n) and108Pd(16O, 4n)reactions have been studied using γ-ray spectroscopic techniques. 21 new transitions have been added to extend the level scheme. Two S-bands are extended upto 26+ and 22+;these bands are found to cross the g. s band at hΩ=0. 39 and 0. 47 MeV. The band structures have been discussed within the framework of CSM. 相似文献
963.
Doppler-limited high resolution laser optogalvanic spectra of six transitions of rhenium lying in the range 560–620 nm have
been recorded. Isotope shifts between the two natural isotopes of rhenium,185Re and187Re, have been calculated in all the six transitions. Hyperfine coupling constants for eight levels belonging to the configurations
5d
56s
2, 5d
66s, 5d
46s
26p and 5d
56s6p are reported. Wherever possible our constants are compared with those given by others. 相似文献
964.
K. Singh S. S. Bhoga S. D. Wachasunder 《Applied Physics A: Materials Science & Processing》1992,55(5):493-501
A systematic investigation of the Ag2SO4-Na2SO4 binary system which forms a complete solid solution in the entire compositional range reveals the mobility of Ag+ as well as Na+. This is concluded on the basis of the appearance of two overlapping semicircles in the complex impedance plane. Transport number measurements using Tubandt and dc polarisation methods support the mobility of both ions. Further, the maximum conductivity for 30 Ag2SO4-70 Na2SO4 is due to optimum percolating paths resulting from lattice expansion. The decrease in conductivity beyond this, is caused by the increased interaction of Ag+ and Na+. 相似文献
965.
In the present paper, we obtain three unified fractional derivative formulae (FDF). The first involves the product of a general
class of polynomials and the multivariableH-function. The second involves the product of a general class of polynomials and two multivariableH-functions and has been obtained with the help of the generalized Leibniz rule for fractional derivatives. The last FDF also
involves the product of a general class of polynomials and the multivariableH-function but it is obtained by the application of the first FDF twice and it involves two independent variables instead of
one. The polynomials and the functions involved in all our fractional derivative formulae as well as their arguments which
are of the typex
ρ
Π
i=1
s
(x
t
i
+α
i
)
σ
i
are quite general in nature. These formulae, besides being of very general character have been put in a compact form avoiding
the occurrence of infinite series and thus making them useful in applications. Our findings provide interesting unifications
and extensions of a number of (new and known) results. For the sake of illustration, we give here exact references to the
results (in essence) of five research papers [2, 3,10, 12, 13] that follow as particular cases of our findings. In the end,
we record a new fractional derivative formula involving the product of the Hermite polynomials, the Laguerre polynomials and
the product ofr different Whittaker functions as a simple special case of our first formula. 相似文献
966.
967.
Narendra Singh 《Pramana》2003,60(1):53-58
Assuming a relation between the quark mass matrices of the two sectors a unique solution can be obtained for the CKM flavor
mixing matrix. A numerical example is worked out which is in excellent agreement with experimental data. 相似文献
968.
G. Singh P. Srivastava J. Srivastava 《Journal of Thermal Analysis and Calorimetry》2007,89(1):181-189
Five salts of dichloroanilinium bromide (DCABr) were prepared and characterized by elemental and spectral studies. The thermal
decomposition of DCABr was studied by using TG-DTG-DTA techniques and the results are discussed here. Kinetic parameters with
the help of model fitting and isoconversional methods have been evaluated critically. A mechanism of decomposition has also
been suggested. 相似文献
969.
Very recently Deo, in the paper “Simultaneous approximation by Lupas operators with weighted function of Szasz operators”
[J. Inequal. Pure Appl. Math., 5, No. 4 (2004)] claimed to introduce the integral modifications of Lupas operators. These operators were first introduced
in 1993 by Gupta and Srivastava. They estimated the simultaneous approximation for these operators and called them Baskakov-Szasz
operators. There are several misprints in the paper by Deo. This motivated us to perform subsequent investigations in this
direction. We extend the study and estimate a saturation result in simultaneous approximation for the linear combinations
of these summation-integral-type operators.
Published in Ukrains’kyi Matematychnyi Zhurnal, Vol. 59, No. 8, pp. 1135–1139, August, 2007. 相似文献
970.
A method is presented to derive hadronic gas equation of state incorporating the effect of finite size of baryons in a thermodynamically consistent way. The model contains a more realistic picture of incorporating the effect of excluded volume unlike earlier methods. The results obtained by our calculation and those by the thermodynamically inconsistent methods used in many earlier works are compared. 相似文献