用SLAVICH全色干版制作真彩色DENISYUK全息图技术

介绍了成功利用ＳＬＡＶＩＣＨ高分辨率全色银盐干版制作真彩色ＤＥＮＩＳＹＵＫ反射全息图的技术，其中包括三基色选取，光路设置，化学处理方法等，制作出的全息图彩色逼真，鲜明。本方法的化学处理比已报导的方法简单。     

高效液相色谱法测定6—氰—2—萘酚的量

对高效液相色谱的色谱柱、流动相及柱温等主要因素分析优化，然后对6-氰-2-萘酚进行定量测定，样品量在0．2～5．2μg范围内，线性关系良好，精密度高，为工业化生产提供了一个较好的分析方法。     

等离子弧焊对12Cr18Ni10Ti低周腐蚀疲劳寿命的影响

薄壁金属的连接和成型采用微束等离子弧焊的方法具有较多优点。微束等离子孤焊的工艺参数对焊缝的形状和焊接质量都有影响。文章研究了不同的焊接速度对12Cr18Ni10Ti薄板在腐蚀性介质中的低用腐蚀疲劳寿命的影响。结果表明,在其他工艺参数相同的情况下,焊接速度在60～125 m/h内变化,焊接试板在大气和3％NaCl溶液中的低用腐蚀疲劳寿命相差较大。     

Cu-Fe Catalysts Modified by Rare Earths for Preparation of High Alcohols from Fatty Acid Esters Reduction

Cu-Fe Catalysts Modified by Rare Earths for Preparation of High Alcohols from Fatty Acid Esters Reduction     

Structural characteristics of SiGe/Si materials investigated by raman spectroscopy

In this paper, we employ a simple, efficient, and nondestructive Raman scattering analysis method to study the structural features of Si_1−xGe_x/Si film. Markedly, the method can simultaneously determine the Ge fractional composition x, the strain of SiGe films as well as its relaxation degree, the thickness of a SiGe epilayer and the crystallinity of SiGe film. At the same time, Rutherford backscattering spectroscopy/Channeling are also used to characterize SiGe films with the aim of corroborating the validity of the Raman analysis with respect to the Ge content, and the thickness and crystal quality of the SiGe film. It is demonstrated that Raman spectra show significant promise for obtaining a considerable variety of parameters of SiGe film in a nondestructive, highly production-efficient, and cost-effective manner.     

Effects of the antihypertensive drug efonidipine hydrochloride on albuminuria and renal histopathology in young spontaneously hypertensive rats with diabetes

We examined 199 consecutive referrals to the Lipid Clinic at the National hospital in 1995 in order to compare referral- and chart data on familial hyperlipidaemia, familial cardiovascular disease, diagnosis, and lifestyle. 78% of referrals were from general practitioners. Most of the referrals included information on familial hyperlipidaemia and cardiovascular disease and on diet, but did not specify a lipid diagnosis. Less than half of the referrals included information on smoking habits (which was almost always specified in the chart). Up to 80% did not include information on alcohol, body mass index and physical activity, which was also often missing in the chart. We conclude that the referring doctors, and to some extent the clinic physicians, identified patients with a familial risk of cardiovascular disease, but they did not appear to characterise important lifestyle habits related to cardiovascular risk.     

基于W态的控制量子对话

我们提出了一个基于W态的控制量子对话方案.两个合法的用户Alice和Bob在控制者Charlie的帮助下可以同时交换他们的秘密信息.我们分析了这个方案的安全性,而且指出这个方案可以有效地抵制截取再发送攻击,纠缠测量攻击和干扰攻击.     

A two-dimensional linear variation displacement discontinuity method for three-layered elastic media

A new displacement discontinuity method is developed for the analysis of multi-layered elastic media. This approach is based on a novel superposition scheme and the analytical solution to the problem of a displacement discontinuity element within bonded half-planes. A three-layered elastic region is obtained by superposing two sets of bonded half-planes and subtracting one infinite plane. The advantages of this approach are: (1) it is not necessary to introduce elements at the interface, (2) the method is applicable for three dimensional modelling and (3) it can be extended to an N (N>3) layer system easily. The accuracy of the model is illustrated by comparing the numerical results with the analytical solutions for a hole in an infinite strip in tension and with the numerical solution for a pressurized crack within a three-layered system. In order to show the efficacy of the developed model, the simulation results of a typical South African mining problem and general tunnel excavation problems are also presented.     

煤层气资源量计算中的几个问题

对煤气资源量计算中的几个问题作了探讨。提出，煤气资源量中的甲烷量是计算储量的主要对象；煤层围岩及不可采煤层中的气体应得到重视；计算储量时可采用数值模拟法，将这部分储量放入开发阶段的储量动态模拟之中，以减少煤层气开发初期的风险。     

用275高沸物合成255甲基苯基硅油

以２７５高沸物、二苯基硅二醇、八甲基环四硅氧烷为原料，经碱催化平衡反应制得２５５甲基苯基硅油，探讨了影响平衡反应的诸因素。结果表明：平衡时间４ｈ，平衡温度１１０～１２０℃，催化剂加入量占总加料量的００５％～００６％，采用４种配方制得的２５５甲基苯基硅油质量合格。