各向异性随机表面参量的光散射测量

用原子力显微镜对粗糙硅表面进行了形貌测量,发现其高度分布的各向异性,根据光场分布特点,结合晶片样品表面的散射方位曲线,在入射角是75°的情况下,沿着散射方位曲线测量了样品表面的光散射轮廓,引入自仿射分形随机表面模型,利用傅立叶变换法对光的散射轮廓进行定量分析,成功提取了随机表面参量,并与在原子力显微镜下测量样品表面高度分布经计算所得的数据相比较,验证所得参量的正确性.     

浅谈PowerMaster智能高频开关电力操作电源系统在供电系统中的应用

研究了直流操作电源监控的关键技术,结合电力电子、计算机、通信等新技术,研究了该系统直流操作电源监控模块,对其器件及电路进行了分析。     

喷射混凝土在桥梁维修加固工程中的应用

笔者主要阐述了锚喷混凝土在桥梁维修加固工程中的应用,并从喷射混凝土设计、喷射混凝土施工两方面分析了喷射混凝土施工工艺的经济性及实用性。     

女性主义翻译观探析

女性主义翻译理论以其鲜明的政治话语推动了翻译研究的“文化转向”，它不仅使译论界进一步发现结构主义关照下的传统译论所存在的盲点和误区，而且为翻译研究提供了新的视角。然而，它过于强调对语言的“操纵”和译者的“干预”，认为翻译即“重写”，为女性代言，引起了译论界的不少批评。     

The mechanism for fuzzy-ball working fluids for controlling &; killing lost circulation

Lost circulation controlling & killing material has been a focused issue since a long time ago. A novel leak resistance fluid with the raw materials such as SDS, SDBS, HES, PAM and proprietary productions has been developed from laboratory. The experiment and application shows that the new leak resistance fluid can plug leaking passage of different sizes simultaneously. Observing with 1000 to 2000 time microscope, it is found that the working liquid contains a kind of spherical material which has the microstructure of “one core, two layers, and three membranes”. When it is in a static state, the inside of the material looks like an airbag and the outside looks like some fuzzy things which has high gel strength. While when it is in a dynamic state, the fuzzy thing is cut or scattered and flow ability becomes much better. That is the reason why it is called fuzzy-ball. When the diameter or the width of the leak passage is greater than the fuzzy-ball’s, the fuzzy-ball accumulates in conical shape to decompose the working fluid pressure of liquid column to achieve blocking; when the diameter or the width of the leak passage is equivalent to the fuzzy-ball’s, the fuzzy-ball changes from sphere to oval–shape to increase the resistance to the leak passage and plug the holes; when the diameter or the width of the leak passage is smaller than the fuzzy-ball’s, the leaks could be blocked up by the non-permeable membrane formed by the gel of high strength in the working fluid. In these cases, the leak passages of different sizes could be blocked comprehensively.     

Room temperature ferromagnetism of Ni,(Ni,Li),(Ni,N)-doped ZnO thin films

Ni-doped ZnO thin films (Ni concentration up to 10 mol%) were generated on Si (100) substrates by a sol-gel technique. The films showed wurtzite structure and no other phase was found. The chemical state of Ni was found to be bivalent by X-ray photoelectron spectroscopy. The results of magnetic measurements at room temperature indicated that the films were ferromagnetic, and magnetic moment decreased with rise of Ni concentration. The magnetization of Ni (10 mol%)-doped ZnO film annealed in nitrogen was low...     

面向知识经济 加快科技成果产业化

叙述了知识经济及其要求,在此基础上提出了实现科技成果产业化的前提是科技开发,指出实现科技成果产业化的关键是科技成果推广.     

Experimental Investigation of Yarn Twist Blockage

In twisting a yarn running over a guide surface, the twist inserted into the part in front of the guide is impeded to transmit freely to the part behind the contact zone. A new device has been set up for investigating twist blockage and yarn torque - twist simultaneously. Measurements of twist blockage in relationship to different parameters have been carried out by using a monofilament yarn and a multifilament yarn. The factors under consideration include the wrap angle, yarn tension and input twist.     

水下枪弹速度测量误差分析

简要介绍了水下枪弹运动时｛ｘｉ，ｔｉ｝ 数据对的获取方法。分析了弹丸在水中与空气中运动规律的差异，提出了适合于水中弹丸运动的位移—时间回归模型。讨论了弹丸运动速度之标准误差的计算方法，并给出了标准误差之变化规律。