当代科技革命的特点及其启示

当代科技革命浪潮在全球兴起,以科技竞争推动经济竞争已成为新一轮科技革命的焦点.我们应当正确认识当代科技革命的特点,分析其对世界政治经济的影响,制定实施一系列科技政策措施,迅速提高我国的综合国力,实现经济、社会、环境的协调发展.     

Calculation of the Thermoelastoplastic Nonaxisymmetric Stress-Strain State of Layered Orthotropic Shells of Revolution

The methods for determining the nonaxisymmetric thermoelastoplastic stress-strain state of layered orthotropic shells of revolution are developed. It is assumed that the layered package deforms without mutual slippage or separation of layers. The problem is solved using the geometrically nonlinear theory of shells based on the Kirchhoff-Love hypotheses. In the isotropic layers, plastic deformations may appear, whereas the orthotropic layers deform in the elastic region. It is assumed that the mechanical properties of the materials are temperature-dependent. The thermoplasticity equations are presented in a form corresponding to the method of additional deformations. The order of the system of partial differential equations obtained is reduced with the help of trigonometric series in the circumferential coordinate. The resulting systems of ordinary differential equations are solved by the Godunov technique of discrete orthogonalization. The nonaxisymmetric thermoelastoplastic stress-strain states of layered shells of revolution are considered as examples.     

土地革命时期中共文化建设的理论和实践--以中央苏区为例

土地革命时期，中国共产党在农村创立了革命根据地，建立了苏维埃政府。为了解除反动统治阶级所加在工农群众精神上的桎梏，为了更好地进行苏维埃的政权建设，中国共产党在极其艰难的条件下，积极地探索化建设的理论，并努力实践，创造了新的革命化。     

论晚清步调不一的诗界革命和小说界革命——以梁启超、黄遵宪为中心

评价梁启超、黄遵宪等人的诗界革命,可以联系他们对小说界革命的看法,他们面对两种文类革新时发言的姿态是很不一样的。在以激进的言论探讨小说界革命的同时,对诗界革命的态度却是审慎的,甚至趋向保守的。这说明不同的文类成规对美学变革有不同的制约作用。梳理和比较梁启超、黄遵宪等人面对诗界革命和小说界革命的不同反应,可以借此更深入地反思古典成规对诗歌革新的强大牵引力。     

用于旋转壳分析的广义样条子域法

本文以非等距Ｂ＿３样条函数为基函数分别建立了旋转壳子午向和环向形函数，其中环向形函数满足周期性条件。采取先子午向插值后环向插值的方式得到旋转壳广义样条子域位移模式。该模式可沿子午向与环向各结线任意设取结点，亦即不同环线可以有不同的结点数，从而大大提高了样条子域法的灵活性，拓宽了其应用范围。     

Stability of shells of revolution made of a damageable nonlinear elastic material

The problem of bifurcation instability of shells of revolution made of a nonlinear elastic material progressively damaged under loading is formulated and solved __________ Translated from Prikladnaya Mekhanika, Vol. 43, No. 5, pp. 35–45, May 2007.     

PLASTIC BUCKLING OF STIFFENED TORISPHERICAL SHELL

ＰＬＡＳＴＩＣＢＵＣＫＬＩＮＧＯＦＳＴＩＦＦＥＮＥＤＴＯＲＩＳＰＨＥＲＩＣＡＬＳＨＥＬＬＨａｏＧａｎｇ（郝刚）ＺｅｎｇＧｕａｎｇｗｕ（曾广武）ＨａｏＱｉａｎｇ（郝强）（ＲｅｃｅｉｖｅｄＤｅｃ．３０，１９９４．ＣｏｍｍｕｎｉｃａｔｅｄｂｙＰａｎＬｉｚｈ...     

Stability of conical shells made of composites with one plane of elastic symmetry

The paper proposes a technique for stability analysis of anisotropic laminated thin shells of revolution made of a composite with one plane of symmetry. The technique is used for numerical analysis of truncated cones made of binder-impregnated filaments continuously wound along geodesic lines. It is shown that the effect of low symmetry on the critical loads depends not only on the number of laminas, but also on the cone angle __________ Translated from Prikladnaya Mekhanika, Vol. 43, No. 6, pp. 93–101, June 2007.     

张德勒晃动的物理解释

从行星自转与公转的相关性出发，导出地球内核的偏心距，从而得知自转轴的偏心距，据此解释了张德晃动现象。     

论创新人才的培养和教育

只有加速创新人才的培养、教育,才能迅速提升国民的创新素质和整个国家的创新能力。创新人才需要具备的最重要的基本素质,乃是思维创新能力、丰富充沛的激情、坚定的信念和意志品质。因此,培养创新人才应当遵循科学规律,坚持以人为本,努力推进多元教育、自由教育、个性特色教育,有效激励受教育者不断探索,深入开发受教育者的智慧潜能。