一个“中等强国”的战略空间拓展——“印-太战略弧”视阈下的澳大利亚安全重构

澳大利亚在安全领域提出的"印-太战略弧"一词是对美国"重返亚太"战略的呼应,透露出澳大利亚未来安全战略的视野指向。澳大利亚在参与"印-太战略弧"地区的国际博弈中,面临着在中美之间、既有强国与新兴大国之间、太平洋次区域组织与泛太平洋组织之间的"选边困境",其战略空间也受到来自这三方面的共同挤压。澳大利亚未来安全战略空间的拓展总体表现出"三向性"特征,努力寻求安全战略转型中的战略增长点,为中国把握太平洋安全形势的发展方向、投放力量和谋篇布局提供了有益启示。     

试论侦查人员出庭作证制度的构建

侦查人员出庭作证制度在我国设立与否争论已久,但一直未能明确。从侦查人员的证人资格及其出庭的意义,探讨在现阶段侦查人员出庭作证制度所存在的障碍及其建立制度的构想。     

Anthropic Shadow: Observation Selection Effects and Human Extinction Risks

We describe a significant practical consequence of taking anthropic biases into account in deriving predictions for rare stochastic catastrophic events. The risks associated with catastrophes such as asteroidal/cometary impacts, supervolcanic episodes, and explosions of supernovae/gamma‐ray bursts are based on their observed frequencies. As a result, the frequencies of catastrophes that destroy or are otherwise incompatible with the existence of observers are systematically underestimated. We describe the consequences of this anthropic bias for estimation of catastrophic risks, and suggest some directions for future work.     

PECVD氮化硅膜的制备及其红外光谱分析

用等离子（增强）化学气相淀积（PECVD）法在Si基底上制备氮化硅薄膜，通过红外吸收光谱研究分析了薄膜中的成分及键结构．     

复合膜光学常数的研究

在1.33×10~(-3)Pa真空度下,用电子束蒸发法在K_?玻璃上成功地淀积了厚度为1200～1500A的复合光学膜,测量了不同参数下制备的膜折射率的平均值,并从色散方程推导出了折射率随波长变化的理论公式,发现复合膜成份决定其折射率的大小值。真空度和衬底温度对折射率值也有明显的影响。文中也给出部分膜色散系数值。     

激光辅助冷喷涂Stellite 6多颗粒沉积的数值模拟

针对激光辅助冷喷涂过程中Stellite 6多颗粒沉积机理的问题,运用有限元分析软件ANSYS/LS-DYNA对Stellite 6多颗粒在不同工艺参数下的碰撞过程进行了数值模拟,并与实验结果进行了比较分析。研究表明：多颗粒沉积过程,后续颗粒对先前沉积颗粒具有夯实作用,相邻颗粒间的变形能够填充颗粒间的空隙;颗粒沉积过程中无金属射流现象、无新物质生成、无氧化反应;Stellite 6颗粒在45钢基体上的沉积机制为镶嵌式的机械咬合。实验结果与数值模拟相吻合。     

真空助力器带主缸总成试验台的开发

通过分析汽车真空助力器及制动主缸结构和工作原理,详细研究有关标准,设计开发出了关于助力器及主缸的综合性能试验台。试验台的开发过程中程序的编制完全采用的是Visual Basic6．0语言。该试验台能满足不同标准下实验方法的要求并能全面准确地体现真空助力器及主缸的各种性能。     

高分子辅助沉积法制备氧化物和氮化物薄膜

高分子辅助沉积法是近年来发展起来的一种薄膜沉积方法。该方法利用高分子与金属键合形成均匀稳定的溶液,将溶液涂覆在基片上后,通过热处理使高分子分解而形成薄膜。该文介绍了使用该方法制备的一些具有代表性的氧化物和氮化物薄膜,包括简单氧化物/氮化物,如TiO2、GaN和AlN等,复杂氧化物/氮化物如(Ba,Sr)TiO3、Ti1-xAlxN等。通过X射线衍射、透射电镜、介电测试和光学测试等方法对薄膜的结构和性能进行了表征和分析,并探讨了基片和工艺条件对结构和性能的影响。这些结果表明高分子辅助沉积法可以广泛应用于制备各种高质量的氧化物和氮化物薄膜。     

Vacuum erection device in treatment of organic erectile dysfunction and penile vascular differences between patients with DM type I and DM type II

The aim of this study is to investigate changes in the vascular system and hemodynamics between patients with organic erectile dysfunction (ED) (DM type I and II), as well as to compare the quality of sexual life between those two groups after the treatment with vacuum erection device (VED). Study enrolled 50 males with DM, aged from 35 to 67 years, who have attended the urologic clinic due to inability to attain and maintain an erection of the penis sufficient to permit satisfactory sexual intercourse. Patients were using VED and six months later were assessed for therapy results. The International Index of Erectile Function (IIEF) was used to quantify erectile dysfunction. Alprostadil injection test was also used, with Doppler color flow imaging system, to evaluate the peak systolic velocity (PSV) and diameter of cavernosal artery (DCA). Significantly higher values of PSV were obtained in patients with DM type II. Also, DCA showed significant difference between two groups of patients. There was significant improvement in three items of IIEF after six months of treatment among both groups of examinees. Patients with DM type I had more serious risk for development of arteriogenic ED. VED could be a good alternative therapy for patients who denied peroral therapy.     

真空降水联合强夯法加固粉土路基的研究

结合绍兴滨海新城新东线道路的软基处理工程,进行了真空井点降水联合强夯法的现场试验研究。试验过程中对每遍处理过程中的孔隙水压力、地下水位、施工沉降进行了实时监测和分析,并对加固后的路基进行静力触探检测和地基承载力检测。结果表明:真空井点降水联合强夯法可有效加固深厚饱和粉土路基,能加快孔隙水压力消散,缩短工期;并使加固后土体的Ps值和地基承载力显著提高,有效加固深度达8 m,处理效果显著。