磁吸附爬壁机器人控制系统的研究

在研制爬壁机器人基础上，比较了磁吸附爬壁机器人的各种吸附与驱动方式的优缺点，设计了机器人的控制系统，推导出控制算法，并实验结果表明控制系统能满足工作要求。     

ATM网络中基于VP子网的最短虚路由策略

本文借鉴了分组网络的路由选择方式，根据ＡＴＭ网络的特点，提出一种基于ＶＰ子网的虚通路ＶＣ最短路由策略，通过计算机模拟讨论了这种策略的有效性，并与ＬＢＡ（ＬｅａｓｔＢｕｓｙＡｌ－ｔｅｒｎａｔｉｖｅ）策略比较。结论表明：在轻流量和大流量情况时，两种路由策略效果相近，而在中等流量时，本文提出的路由策略优于ＬＢＡ。     

带保护环结构的条形X光阵列探测器

研究了带有保护环结构的条形 X光阵列探测器 ,结果表明 ,保护环的存在不仅降低了表面漏电 ,而且抑制了耗尽区的侧向扩展 .厚度为 30 0 μm的探测器样品 ,切割后的“死区”长度为 15 0 μm;环境温度为 18℃时 ,70 V偏压下加保护环测得的探测器完全耗尽时的漏电流为 2 0 n A.     

对三峡通航建筑物总体布置及冲沙措施的建议

为了改善三峡工程通航建筑物工作条件，尽量解决通航建筑物上下游引航道及船闸取水口的泥沙淤积问题，根据三峡坝区泥沙和通航模型试验结果，对三峡工程通航建筑物整体布置方案及冲沙工程措施提出以下建议：（１）枢纽运行前期３０＋２年，在永久船闸第一闸首上游修建６６０ｍ长的短隔流堤，在升船机上游引航道右侧设置长２５０ｍ的浮式导航堤；（２）枢纽运行至３０＋２年，视碍航趋势，续建全包隔流堤；（３）临时船闸停航后，可改建２孔５．５ｍ×９．６ｍ的冲沙闸；（４）在永久船闸和升船机之间兴建一条冲沙隧洞，加大冲沙流量并保护永久船闸的侧向取水口。     

~(125)I-苯妥英放免分析测定盒的质量控制

我们使用了自己生产的~(125)I-苯妥英放免测定盒及卫生部药检所的苯妥英质控血清进行质量控制的实验。计算了十六批测定数据的内质量控制的各质量控制数值:平均批变异系数(ABCV),RER,精密度图,剂量反应曲线的r、a、b及ED值,并用Rodbard介绍的方差分析法计算批内、批间精密度,最后作了质控图及2-样本youden图。以此评价批内及批间漂移,检定苯妥英放免药盒的质量并为使用该药盒的临床实验室提供质控参考数值。这些方法     

Structural, electronic and magnetic properties of ultra-narrow NbSe2 nanoribbons

Structural, electronic and magnetic properties of ultra-narrow NbSe2 nanoribbons with different chirality and edge structures are studied by using density functional theory calculations. Armchair-like NbSe2 nanoribbons exhibit nonmagnetic and metal behavior. Zigzag-like NbSe2 nanoribbons always have ferromagnetic ground states with electronic types ranging from semiconductor, metal, even to half-metal. And stability estimation indicates that the zigzag-like NbSe2 nanoribbons with 50% Se passivation at Nb edges are the most energetically stable. All these findings suggest potential applications of NbSe2 nanoribbons in spintronic devices.     

Stereoscopic system for inexpensive hazardous area three-dimensional robot localization applications based on incoherent optical fiber bundle calibrated for high-resolution image transmission

Computer vision, despite all the recent progress, still cannot be employed technically in most hazardous and harsh industrial areas. Most of the alternative solutions to this modern issue are usually unavailable mainly due to the global visual inspection solution cost. The best suitable option is the use of an incoherent optical fiber bundle (IOFB) that obviously requires a calibration step before image transmission purpose. We already presented our contribution to this topic improving the calibration method of the IOFB for image transmission, with some additional and essential steps that considerably improve the reconstructed image quality while also drastically reducing the processing time needed. We also proposed and evaluated a new full-resolution calibration method in a very recent study. We present and discuss in this paper an application using the IOFB for robot guiding in hazardous areas, based on a stereoscopic vision system. Conclusions compare the low- and full-resolution IOFB calibration methods for the depicted application and introduce some advantages of a specially designed IOFB that could perfectly fit with some industrial applications.     

无溶剂聚氨酯弹性舰船地板材料的制备及性能研究

以组合聚醚多元醇、4,4′-二苯基甲烷二异氰酸酯(MDI)和3,3′-二氯-4,4'-二氨基二苯甲烷(MOCA)为原料制备了舱室用无溶剂聚氨酯弹性地板材料,研究了R值、扩链剂、填料等因素对其力学性能、阻燃性能等的影响规律.结果表明,该弹性地板材料具有优良的弹性、强度、环保和施工工艺性,可以满足现代舰船舱室地板的性能要求...