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期刊Molecular dynamics simulations of microscopicstructure of ultra strong shock waves in dense helium被引量:1
《物理学前沿:英文版》2016年第6期197-207,共11页Hao Liu Wei Kang Qi Zhang Yin Zhang Huilin Duan X. T. He 
Hydrodynamic properties and structure of strong shock waves in classical dense helium are simulatedusing non-equilibrium molecular dynamics methods. The shock speed in the simulation reaches 100km/s and the Mach numbe...显示全部
关键词:shock structure  high MACH number  DENSE media 
期刊中美高校女子高水平竞技比较研究
《河北体育学院学报》2019年第3期85-90,共6页韩园园 张振龙 
运用文献资料法和比较分析法,对中美高校女子高水平竞技发展现状进行比较研究。对标美国,我国高校女子高水平竞技主要存在男女运动员人数不均,项目、赛事设置不平衡,资金来源单一、经费欠缺等问题。指出,美国高校女子高水平竞技发展的...显示全部
关键词:中美高校 女子高水平竞技 人数 项目 赛事 资金 
期刊Does the Universe Really Expand, or Does the Size of Matter Shrink Instead?
《现代物理(英文)》2017年第12期2077-2086,共10页Hwei-Jang Yo 
Modern cosmology is built on the concept of the spatial expansion of the Universe. And the current astronomical observation is consistent with this paradigm. However, the expansion of the Universe is an expansion rela...显示全部
关键词:SHRINKING MATTER Varying Constant Large number HYPOTHESIS 
期刊Curing theory of A_f-A_g type free radical polymerization (I)──Distribution function and its invariant property
《中国科学:化学英文版》1998年第6期652-659,共8页王海军 吕中元 黄旭日 李泽生 唐敖庆 
ProjectsupportedbytheNationalNaturalScienceFoundationofChina (GrantNo .2 96 730 18),andthePh .D . fundsoftheStateEducationCommissionofChina
By means of polymer statistical theory, the sol fraction and the gelation condition of A f-A g type nonlinear free radical polymerization are obtained by introducing the probabilities with respect to initiation and ch...显示全部
关键词:free RADICAL POLYMERIZATION SOL FRACTION equilibrium number FRACTION distribution. 
期刊SOUND RADIATION FROM PLATES ON ELASTIC FOUNDATION UNDER ACTION OF MOVING LINE FORCES被引量:1
《东华大学学报:英文版》1989年第1期82-94,共13页彭宏 
An analysis is made of the problem of sound radiation from infinite one-dimensional plateson elastic foundation, when the plates are subjected to the action of harmonic line forces movingat subsonic speeds (M <...显示全部
关键词:INFINITE dimensional PLATES (structure) elastic foundation MACH number stiffness resonance frequency COINCIDENCE phenomenon MOVING harmonic LINE force radiated sound power 
期刊Floral Properties of Different Lucerne Varieties and Their Effects on Bee Visitation
《动物与饲料科学:英文版》2014年第2期72-74,共3页Jiang Hua Shan Guilian Duan Xinhui Bi Yufen He Chenggang 
supported by National Natural Science Foundation of China(Grant No.31060324);Natural Science Foundation of Yunnan Province(Grant No.2012FB148);Natural Science Key Foundation of Yunnan Provincial Education Department(Grant No.2012Z021)
Lucerne( Medicago sativa L.) is a plant of strict allogamy,and its pollination relies on bees mainly. Genetic variations of lucerne floral properties,including receptacle diameter,coronary length,number of flowers per...显示全部
关键词:LUCERNE FLORAL properties number of visiting BEES 
期刊IMPACT OF ATMOSPHERIC LOW-FREQUENCY OSCILLATION ON THE IMMIGRATION OF NILAPARVATA LUGENS(STL) IN HUNAN AND JIANGXI PROVINCES
《热带气象学报:英文版》2018年第2期209-219,共11页孙思思 包云轩 郑腾飞 陆明红 谢晓金 
National Science Foundation of China(41075086,41475106);Science Research Program of Universities and Colleges in Jiangsu Province(14KJA170003);Priority Academic Program Development of Jiangsu Higher Education Institutions(IRT1147)
Various features of the atmospheric environment affect the number of migratory insects, besides their initial population. However, little is known about the impact of atmospheric low-frequency oscillation(10 to 90 day...显示全部
关键词:atmospheric low-frequency oscillation Nilaparvata lugens(Stl) immigrating number cycle of 10-20 days atmospheric circulation 
期刊Isolation and Characterization of Nitrogen Fixing Rhizobia from Cultivated and Uncultivated Soils of Northern Tanzania
《美国植物学期刊(英文)》2014年第26期4050-4067,共18页Zephania Simon Kelvin Mtei Amare Gessesse Patrick A. Ndakidemi 
Soil bacteria1 called rhizobia are gram-negative capable to colonize the soil immediately surrounding roots under the influence of the plant “rhizosphere” and reduce atmospheric nitrogen into the form available to p...显示全部
关键词:Isolation RHIZOBIA NITROGEN Fixation SYMBIOSIS NODULES LEGUME Most PROBABLE number 
期刊Determination of the packing number D_λ(3,W_4^((3)),v)被引量:2
《中国科学:数学英文版》2009年第11期2537-2548,共12页WU Yan & CHANG YanXun Institute of Mathematics,Beijing Jiaotong University,Beijing 100044,China 
supported by National Natural Science Foundation of China (Grant Nos. 10771013, 10831002)
A t-hyperwheel(t≥3) of length l(or W l(t) for brevity) is a t-uniform hypergraph(V,E) ,where E = {e1,e2,. . .,el} and v1,v2,. . .,vl are distinct vertices of V = il=1 ei such that for i = 1,. . .,l,vi,vi+1 ∈ ei and ...显示全部
关键词:t-(v Γ λ) PACKING LEAVE PACKING number GROUP divisible(Γ t) -design candelabra(Γ t) -system 
期刊Structure and prime decomposition law and relative extensions of abelian fields with prime power degree
《中国科学:数学英文版》1999年第8期816-824,共9页张贤科 
Project supported by the National Natural Science Foundation of China (Grant No. 19771052).
Let L be an abelian extension of the rationals Q whose Galois group Gal(L) is an abelian (q-group q is any prime number). The explicit law of prime decomposition in L for any prime number p, the inertia group, residue...显示全部
关键词:algebraic number FIELD ABELIAN FIELD PRIME DECOMPOSITION RELATIVE extension INERTIA group. 
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