资料摘要
资料下载Recent progress in the cartography market can only be described as radical. The time-consuming days of mapping by hand seem numbered, as geographic information system (GIS) experts, professional land surveyors (PLS) and others within the field of cartography awaken to the advantages of integrating light detecting and ranging (LIDAR) into their mobile mapping systems. LIDAR is similar to radar, except that the sensor sends out and receives....................
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NASA海洋色度仪的设计与开发.--精密超级双相混合轴承盒
简介：一种高精度、高分辨率的海洋彩色成像 (OCI) 仪器正在开发中，用于浮游生物、气溶胶、云、海洋生态系统 (PACE) 任务需要一对中速连续扫描海洋表面的机制。
刹车片材料的摩擦学
简介：刹车片材料的摩擦学 特伦托大学的Straffelini教授和Gialanella教授领导的一个团队正在使用Ducom多功能摩擦磨损试验机（POD 4.0）开发新型制动材料，可以将空气中的磨损颗粒减少50%。
盾构机钻头效率研究
简介：盾构机钻头效率研究 钻头的形状也会对每米钻入岩石的总切削量产生影响。与半球形相比，锥形形状可以施加高接触压力。然而，半球形会含有更多的第三体磨损颗粒，从而产生高应力。
热轧钢摩擦试验机
简介：热轧钢摩擦试验机 了解工件和模具之间的高温摩擦和磨损对于降低与热成型操作相关的风险非常重要。 传统的摩擦试验机无法捕获热冲压操作中的两个关键因素 a）材料转移和附着力导致的磨损 b）模拟模具和工件之间的温差
四球试验机中的剪切稳定性测试
简介：Lubricant formulations which ensure a stable viscosity under high shear rates (~107sec-1) are critical to ensure adequate film thickness to protect equipment from unacceptable wear and scuffing. Viscosity modifier used as additives are susceptible to degradation during mechanical shearing. The KRL shear stability test (CEC L-45-99) is considered one of the most severe tests to estimate the permanent change in viscosity caused by mechanical stresses and correlates well with the field data for a 60 hour test.
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