搜索结果: 136-150 共查到“理学 structural”相关记录321条 . 查询时间(0.078 秒)
Groundwater compartmentalisation：a water table height and geochemical analysis of the structural controls on the subdivision of a major aquifer, the Sherwood Sandstone, Merseyside, UK
Groundwater compartmentalisation Sherwood Sandstone water table height
2009/5/13
Compartmentalisation, the subdivision of an aquifer into discrete and relatively isolated units, may be of critical importance for the protection of groundwater although it has been largely ignored i...
Electronic and structural properties of two mirrored boron-nitride nanocones with 240o disclination
electronic structure nanomaterials nanocones boron and nitrogen
2010/7/5
We studied, through first-principles calculations based on the density functional theory, the charge distribution, the density of states and the tip rearrangement of two mirrored boron nitride nanocon...
Vegetation composition and soil microbial community structural changes along a wetland hydrological gradient
phospholipid fatty acid soil microbial Vegetation composition
2009/4/28
Fluctuations in wetland hydrology create an interplay between aerobic and anaerobic conditions, controlling vegetation composition and microbial community structure and activity in wetland soils. In t...
The contribution of soil structural degradation to catchment flooding: a preliminary investigation of the 2000 floods in England and Wales
soil structure land management Curve Number
2009/3/12
During the autumn of 2000, England and Wales experienced the wettest conditions for over 270 years, causing significant flooding.
Structural changes in the beef meat demand in Slovakia and demand elasticity estimation
beef meat consumption households’ consumption price elasticity income elasticity BSE disease
2014/3/3
The article focuses on assessing the consumer habits attitudes and behaviour towards the beef meat demand. The main objective of this study is to investigate the determinants of the households’ beef m...
A Structural Front Over the Continental Shelf of the Eastern Bering Sea
Conductivity and temperature versus depth expendable bathythermograph Eastern Bering Sea
2009/2/11
Conductivity and temperature versus depth (CTD) and expendable bathythermograph (XBT) data taken during the ice-free seasons of 1975–77 define a structural front paralleling the 50 m isobath. This fro...
Overview of the structural unification of quantum mechanics and relativity using the algebra of quantions
structural unification quantum mechanics relativity the algebra of quantions
2010/4/7
The purpose of this contribution is to provide an introduction for a general physics audience to the recent results of Emile Grgin that unifies quantum mechanics and relativity into the same mathemati...
Structural stability, Morse's lemma and singular economies
Structural stability Morse functions singular economies
2010/9/14
In this paper we consider economies whose consumption spaces are subsets of a Hilbert space with non-empty interior, and we introduce the Negishi approach to characterize the social equilibria of thes...
First-principles calculations of structural, electronic and optical properties of Zinc-blende Six Ge1-x C alloys
Alloys Lattice parameter Bulk modulus Electronic structure Band-gap Gap bowing Optical properties
2010/4/8
We present first-principles calculations of the structural, electronic and optical properties of zinc-blende Six Ge1-x C alloys by application of the full potential linearized augmented plane wave (FP...
29 October 2007, Çameli earthquake and structural damages at unreinforced masonry buildings
Ç ameli earthquake and structural damages unreinforced masonry buildings
2009/12/30
A recent earthquake of M=4.9 occurred on 29 October 2007 in Çameli, Denizli, which is located in a seismically active region at southwest Anatolia, Turkey. It has caused extensive damages at un...
Effect of UV radiation and temperature on the emission of methane from plant biomass and structural components
UV radiation emission methane plant biomass structural components
2010/1/15
The recently reported finding that plant matter and living plants produce significant amounts of the important greenhouse gas methane under aerobic conditions has led to an intense scientific and publ...
Synthesis and X-Ray Structural Studies of Amino Acids Half Sandwich Complexes of Osmium(II)
Osmium X-Ray studies N ligands Amino acids Half sandwich Complexes
2010/4/16
The amino acids complexes of osmium(II), i.e. [Os(h 6-p-cymene)(h1-N-(rac)-phenylglycine methyl ester)Cl2] (A) and [Os(h 6-p-cymene) (h1-N,N'-(S)-phenylalanine amido) Cl] (B), were prepared by an ultr...
Miocene to present kinematics of fault-bend folding across the Huerguosi anticline, northern Tianshan (China), derived from structural, seismic, and magnetostratigraphic data
Miocene to present kinematics fault-bend folding across Huoerguosi anticline northern Tianshan structural seismic magnetostratigraphic data
2014/4/15
We combine surface structural measurements, subsurface seismic imaging, and magnetostratigraphic dating to retrieve, through geometric modeling, the detailed history of fold growth and sedimentation ...
Structural and Elastic Properties of MgX (X=Se, Te) Semi Conducting Compounds under High Pressure
Alkaline earth chalcogenides phase transitions high-pressure
2010/4/9
In the present paper, we have investigated the high-pressure structural phase transition of magnesium chalcogenides using the three-body potential (TBP) model. Phase transition pressures are associate...
群体遗传不平衡条件下的结构基因遗传共适应特性 Genetic Co-adaptability Among Structural Genes under the Condition of Genetic Disequilibrium
山羊群体 结构基因 遗传共适应 遗传不平衡
2007/12/30
摘要本研究以柴达木山羊、柴达木绒山羊和辽宁绒山羊三个群体共147只山羊为材料，利用聚丙烯酰胺凝胶电泳（PAGE）技术检测了5种血液蛋白质（酶）基因座的遗传多态性，并进行了结构基因遗传共适应的研究，结果发现：45个基因座组合中有10个基因座组合处于遗传不平衡状态，并且这些遗传不平衡皆单纯由遗传共适应差异造成；除辽宁绒山羊Tf-PA-3组合的遗传不平衡包含非等位基因间的遗传共适应差异外，其他基因座组合...