搜索结果: 1-15 共查到“理学 SS”相关记录31条 . 查询时间(0.061 秒)
扶桑绵粉蚧Phenacoccus solenopsis Tinsley是我国近年新发现的一种严重威胁农林业生产的重要外来入侵害虫。针对扶桑绵粉蚧与其他粉蚧类昆虫难以准确快速识别且适生区广泛的问题， 以扶桑绵粉蚧为靶标， 以我国常见的其他7种粉蚧为参照， 采用基于线粒体DNA细胞色素C氧化酶亚基Ⅰ (mtDNA COI) 基因序列的种特异性(species-specific COI, SS-COI)...
The unusual radio transient in M82: an SS 433 analogue?
stars:radio:continuum – stars:X-rays:binaries – Galaxies:individual:M82– X-rays:galaxies
2011/10/19
In this paper we discuss the recently discovered radio transient in the nuclear region of M\,82. It has been suggested that this source is an X-ray binary, which, given the radio flux density, would r...
SS 433: The wiggle of the wind
stars: individual: SS 433 - binaries: close - stars: fundamental parameters - winds
2011/10/13
The Balmer H alpha emission line in the stationary spectrum of SS 433 has a component originating in the wind above the accretion disk. The Doppler motion of this line is a blurred representation of t...
Stratified spaces constitute a Fraïssé catego
Stratified spaces constitute Fraï ssé catego
2010/11/23
We prove that stratified spaces and stratified pseudomanifolds satisfy categorical Fra\"{\i}ss\'e properties. This result was presented for the First Meeting of Logic and Algebra in Bogot\'a, on Sept...
We report BVR photometry of the V1343 Aql= SS 433 microquasar at different phases of the 13–day orbital cycle for the 1986–1990 observing seasons. The data include five complete cycles of the 163d pre...
The effect of the infrared excess from the Be star on inverse Compton gamma-ray production in PSR B1259-63/SS 2883
radiation mechanisms non-thermal – pulsars individual PSR B1259-63–X-rays binaries
2010/11/12
The binary system PSR B1259-63 consists of a 48 ms pulsar in a 3.4 year or-bit around a Be star and unpulsed TeV gamma-ray emission has been detected near previous periastron passages.
The Bergman property for endomorphism monoids of some Fraïssé limits
Bergman property for endomorphism monoids Fraï ssé limits
2010/12/3
Based on an idea of Y. P´eresse and some results ofMaltcev, Mitchell and Ruˇskuc,we present sufficient conditions under which the endomorphism monoid of an ultrahomogeneous first-order structure...
200AGeVpp、pS和SS碰撞中单奇异粒子产生数据的分析
奇异粒子 奇异增强 夸克－胶子等离子体
2009/6/3
用相对论性核-核碰撞的蒙特卡罗事件产生器──LUCIAE,分析了200AGeVpp､pS和SS碰撞中单奇异粒子产生的实验数据.结果表明:SS中心碰撞相对于pp或pS最小偏畸事件,似乎有更强的末态相互作用,更短的奇异粒子产生时间,和更大的奇异粒子对压低因子. 从pp到pS再到SS奇异增强的实验事实,似乎不必引入夸克-胶子等离子体就能得到解释.
报道了配合物[M(SS)(NN)](M=Zn2+,Cd2+)(SS=mnt2-,1,2-二氰基乙烯-1，2-二硫醇离子，NN=5-NO2-phen, 5-硝基-1,10-邻菲咯啉)的合成，探讨了Zn(SS)(NN)和Cd(SS)(NN)在二甲基亚砜(DMSO)、二甲基甲酰胺(DMF)、丙酮(acetone)、吡啶(Py)等溶剂中的电子吸收光谱。研究发现配合物的紫外区的吸收带270～280 nm，3...
We prove the Gr¨uss inequality on time scales and thus unify corresponding continuous
and discrete versions from the literature. We also apply our results to the quantum
calculus case.
A Sharp Inequality of Ostrowski-Grüss Type
Ostrowski-Grüss type inequality Grüss type inequality for Riemann-Stieltjes integrals Lipschitzian type function Sharp bound
2008/7/3
The main purpose of this paper is to use a Grüss type inequality for Riemann-Stieltjes integrals to obtain a sharp integral inequality of Ostrowski-Grüss type for functions whose first derivatives are...
A General $L_2$ Inequality of Grüss Type
Euler-Maclaurin formula Error estimate Grüss type inequality
2008/7/3
A General $L_2$ Inequality of Grüss Type.
A Generalisation of the Pre-Grüss Inequality and Applications to some Quadrature Formulae
Pre-Grüss inequality Generalization Quadrature formulae
2008/7/3
A generalization of the pre-Grüss inequality is presented. It is applied to estimations of remainders of some quadrature formulae.
A Generalized Ostrowski-Grüss Type Inequality for Twice Differentiable Mappings and Applications
Ostrowski inequality Grüss inequality
2008/7/3
A generalized Ostrowski type inequality for twice differentiable mappings in terms of the upper and lower bounds of the second derivative is established. The inequality is applied to numerical integra...
A Grüss type inequality for sequences of vectors in inner product spaces and applications
Grüss Inequality inner product spaces
2008/7/3
A Grüss type inequality for sequences of vectors in inner product spaces which complement a recent result from [6] and applications for differentiable convex functions defined on inner product spaces ...