乳胶厚度对卤化银反射全息图衍射特性的影响

实验研究了自制的超细颗粒卤化银乳剂SDUF－1分别在AAC显影、改进的R－10漂白处理及改进的GP－8溶解物理显影处理条件下，其乳胶厚度对反射全息图衍射特性的影响。实验结果表明，在这两种不同处理条件下衍射效率与胶厚的关系有相当大的差别，合适的乳胶厚度分别为12μm和6μm左右。     

崩落区回填的生产实践

本文就丰山铜矿无底柱分段崩落法及覆盖层的形成过程进行了介绍，分析了在丰山特定条件下利用露天剥离废石回填崩落区的原因和效果，对回填厚度及其对崩落范围，巷道稳定性影响进行了探讨。     

崩落区回填的生产实践

本文就丰山铜矿无底柱分段崩落法及覆盖层的形成过程进行了介绍，分析了在丰山特定条件下利用露天剥离废石回填崩落区的原因和效果，对回填厚度及其对崩落范围，巷道稳定性影响进行了探讨。     

提高小折射资料解释效率的几种方法

折射法在石油地震勘探中常用于低降速层厚度、速度的测定。常用的厚度计算方法较繁琐，易出错。这里介绍几种用折射法快速求取地层厚度的方法。方法介绍为了下面叙述方便，这里先给出临界距离法（Xc法）和截距时间法（To法）的厚度公式（1）临界距离法（2）截距时间法f述公式中：i为临界角；sini；。一见／V。；sini。。一V。／V。；…。手工来取低降速层厚度的快速方法这里介绍两种求取低降速层厚度方法——T近似法和图表法。T。近似法几近似法的数学式推导为令X。一t。；V；，当v。远大于风时，可以认为图l给出了几近似法的图解，图2…     

Effect of Thickness on the Structure and Tribological Properties of MoSx Coating

MoSx coatings were prepared by bipolar-pulse DC unbalanced magnetron-sputtering system with the variation of coating thickness at different Ar pressures.The composition and surface morphology were determined by using energy dispersive X-ray and scanning electron microscopy;the structural characterization was analyzed by X-ray diffraction.The friction and wear properties were investigated by fretting tests in air with less than 10% and 50% relative humidity.At 0.40 Pa pressure,(002) basal plane orientation was formed throughout the coatings.At 0.88 Pa and 1.60 Pa pressures,(002) basal plane orientation was only noticed in the first stage of coating growth(around 0.20 μm in thickness), and then edge orientations with their basal planes perpendicular to the surface would be evolved in the coatings.Humidity has a minor influence on the coatings that have(002) basal plane orientation,whereas the tribological properties of MoSx coatings with edge orientations are greatly affected by humidity.The mechanisms of coating growth and friction and wear processes are discussed.     

对沈阳节能建筑新标准编制工作的建议

本文通过对北京、沈阳节能建筑外墙的传热系数及其比值的计算分析,对沈阳编制节能建筑新标准提出了用保温材料厚度对传热系数、最小传热阻进行再隐藏的补充建议。     

控制镀Ni层厚度,提高微波管制管水平

电真空器件中常用的不锈钢、纯铁、可伐等材料在氢气炉中焊接,需电镀一层Ni作为保护层,不同材料焊接温度不同,所需最佳镀Ni层的厚度也不同,找出最佳镀Ni层厚度,经常监测与检测,可提高焊接质量及制管成品率.