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Gindikin that complex analytic objects related to these domains will provide explicit realizations of unitary representations ofH?.


Here we provide certain conditions (more general than those in [Ka1]) which guarantee preservation of the topology under a modification.


We investigate conditions on kernel operators in order to provide prescribed orders of approximation in the TriebelLizorkin spaces.


We provide a direct computational proof of the known inclusion ${\cal H}({\bf R} \times {\bf R}) \subseteq {\cal H}({\bf R}^2),$ where ${\cal H}({\bf R} \times {\bf R})$ is the product Hardy space defined for example by R.


The space spanned by the translates of φv can only provide approximation order if the refinement maskP has certain particular factorization properties.

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 Hydration of high alumina cements made by sintering process in rotary kiln is investigated. Under 20℃ curing, the main hydration products of all of the three kinds of cements with successive higher CaO/Al_2O_3 ratios are CAH(10) (not C_2AH_8) and alumina gel, i. e., they are essentially the same as the hydration products of the cement made by fusion process as generally reported. The hydration products of cement having a lower CaO/Al2O_3 ratio or a higher CA_2 content are more stable.The formation of more... Hydration of high alumina cements made by sintering process in rotary kiln is investigated. Under 20℃ curing, the main hydration products of all of the three kinds of cements with successive higher CaO/Al_2O_3 ratios are CAH(10) (not C_2AH_8) and alumina gel, i. e., they are essentially the same as the hydration products of the cement made by fusion process as generally reported. The hydration products of cement having a lower CaO/Al2O_3 ratio or a higher CA_2 content are more stable.The formation of more basic hydrated aluminates (i. e., C_2AH_8 or C_3AH_6) and gibbsite of this kind of cement occurs at a higher curing temperature.While the latter subjects to the same curing temperature as the cement of higher CaO/Al_2O_3,its initial products will be stable unless it subjects to a longer curing.Under various curing temperatures, the variation of strength of the three cements can be explained by the difference in stability of the hydration products, cement of higher CaO/Al_2O_3 ratio providing the lowest thermal stability of the hydrated products and decreasing in strength of the paste under higher temperature.  研究了三种CaO/Al_2O_3不同的矾土水泥的水化,常温下的主要水化产物都是CAH_(10)(而不是C_2AH_3)和氧化铝胶滞体,与熔融法制矾土水泥是一致的。CaO/Al_2O_3小的水泥具有较好的稳定性,表现在生成或转化为高碱性水化铝酸钙(C_2AH_3或C_3AH_6)和三水矾土(AH_3)的温度较高;在同一养护温度下,水化物转化需要的时间亦较长,三种水泥在不同养护条件下的强度变化规律可从其水化产物的稳定性得到说明,即CaO/Al_2O_3比大的水泥生成的水化物热稳定性最差,高温下强度降低更甚。  This paper describes an approximate solution, in polar coordinates, to the plane problem of foundation consolidation (suitable for certain boundary conditions), and also provides graphs for calculating the distribution of pore water pressure at any time underneath the strip footing with uniform load. They may be applicable to calculating the pore water pressures under conditions of complicated or varying loadings. In the paper, the above results are used to determine the critical edge load on imperfectly... This paper describes an approximate solution, in polar coordinates, to the plane problem of foundation consolidation (suitable for certain boundary conditions), and also provides graphs for calculating the distribution of pore water pressure at any time underneath the strip footing with uniform load. They may be applicable to calculating the pore water pressures under conditions of complicated or varying loadings. In the paper, the above results are used to determine the critical edge load on imperfectly consolidated foundation and the process of foundation settlement is also analysed.  本文叙述了地基渗透固結平面課題的极坐标近似解法(适合于某些边界条件),并提出了条形均布荷重下任何时刻地基內孔隙水压力分布的計算图表,可供在复杂荷重及施荷速率条件下計算孔隙水压力之用。文中另应用上述成果以确定未完全固結地基的边緣临界荷重,并就地基随时間的沉陷过程作了分析。  This paper describes a new method for the structural analysis of impervious concrete diaphragms cast in sand and gravel foundations beneath earth dams. The soil pressure acting on the diaphragm is calculated by considering the interaction between the diaphragm and the foundation. The necessary equations of displacements in the foundation with limited depth produced by the loading of an earth dam and by the horizontal force acting at the interior of the foundation are derived and the deformation equations of... This paper describes a new method for the structural analysis of impervious concrete diaphragms cast in sand and gravel foundations beneath earth dams. The soil pressure acting on the diaphragm is calculated by considering the interaction between the diaphragm and the foundation. The necessary equations of displacements in the foundation with limited depth produced by the loading of an earth dam and by the horizontal force acting at the interior of the foundation are derived and the deformation equations of the diaphragm under the action of external loads are also established. Then, by the compatibility condition of displacements, four sets of linear algebraic equations all expressed in terms of soil pressure are developed with charts provided for the determination of the numerical values of constant terms in these equations. The results of a worked example which compares the present method of analysis with the existing one indicate that the latter in assuming a known distribution of soil pressure would give a solution of considerably large error, and it should not be applied in practice.  关于土坝砂砾地基混凝土防渗墙的结构分析问题,目前还沒有一个比较合理的计算方法.本文介绍了一个新方法,主要是考虑混凝土墙与砂砾地基的相互作用,根据两者位移相一致的条件来求解出作用于墙上的土压力。文中推导了有限深度地基在地表受到了土坝荷重和在內部受到水平集中力作用在地基內引起的水平位移公式,以及混凝土墙在外力作用下的变位方程,最后根据位移相协调的条件得出了适合于不同支承情况和计算情况的四种线性方程组,极易直接求解出土压力值.各方程组中的常数项也可方便地从曲线中查出.通过对某一工程实例的计算,认为过去防渗墙结构分析中采用土压力为某一已知分布的假定将导致很大的誤差,不宜继续采用。   << 更多相关文摘 
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