日语「~(だ)からね」句式研究

本文从日语教育的角度对日汉对译时「~(だ)からね」的句法意义进行分析。表明原因理由的「(だ)からね」有时被译为连词"因为",但从实例来看更多情况并不译成"因为"。反过来,汉语句中在表示判断主张原因和理由,虽然没有使用连词"因为"等特定的形式,但在译成日语时常常使用「(だ)からね」这一形式。汉语不用标志性的"因为"之类的连词也能表明上下文的逻辑关系,而日语在表达事物间的逻辑关系时却要用「(だ)からね」之类的形式加以明示。     

生物酶在水平井钻井液中的应用

提出了在水平井中运用生物酶解除钻井液对地层造成的伤害 ,详细阐述了生物酶的作用机理。通过室内粘度降低、滤饼清除和渗透率恢复等评价实验 ,及中东地区三口多油层井的现场对比实验 ,证明了运用生物酶作为破胶剂处理水平井钻井液对地层伤害的优越性     

Mn18Cr18N新型护环钢应用特性研究

主要研究了加热温度对Ｍｎ１８Ｃｒ１８Ｎ钢机械性能影响，并测定了该钢断裂韧性Ｋ１Ｃ值及裂纹扩展速率，低周次疲劳特性和抗应力腐蚀性能。     

相对小裂纹da／dN公式参数的试验测定法

本文研究了耐久性分析的确定性裂纹增长方法（DCGA）中相对小裂纹的da／dN公式参数的试验测定方法,为耐久性分析的“发展的确定性裂纹增长方法（EDCGA）[1]”提供了计算依据,从而使应用这一改进后的EDCGA进行损伤度评估和经济寿命预测能够得以实现。     

Dark matter searches with H.E.S.S.

WIMP annihilations are required to reproduce the correct dark matter abundance in the Universe. This process can occur in dense regions of our Galaxy such as the Galactic center, dwarf galaxies and other types of sub-haloes. High-energy γ-rays are produced in dark matter particle collisions and can be detected by Cherenkov telescopes such as H.E.S.S. We report here the search for γ-ray signals from the Galactic center and the nearby Sagittarius and Canis Major satellites. In the absence of a convincing signal, modelling the dark matter density within these objects allows to put constraints on the WIMP parameters such as its mass and annihilation cross-section. Beyond these targeted searches, the wide-field survey of the inner Galaxy with H.E.S.S. is used to constrain sub-halo formation models involving intermediate-mass black holes.     

The Mona Lisa identification: Evidence from a computer analysis

A recent computer-aided study identified the model immortalized in Leonardo da Vinci's celebratedMona Lisa to be none other than the artist himself. A follow-up investigation empolying similar techniques identifies the subject of asecond HiddenMona Lisa by the same artist. Analysis of photographic and x-ray images indicates that Leonardo first created a sketch of Isabella, Duchess of Aragon, which he later painted over with theMona Lisa, using himself as the model.     

Rectangle packing with additional restrictions

We formulate a generalization of the NP-complete rectangle packing problem by parameterizing it in terms of packing density, the ratio of rectangle areas, and the aspect ratio of individual rectangles. Then we show that almost all restrictions of this problem remain NP-complete and identify some cases where the answer to the decision problem can be found in constant time.