排序方式: 共有37条查询结果,搜索用时 171 毫秒
21.
质子交换膜燃料电池(Proton Exchange Membrane Fuel Cells,PEMFC)的内部环境是影响电堆性能及寿命的重要因素,针对风冷式燃料电池运行特点,在分析燃料电池温、湿度环境控制方式的基础上,研究了反应风速对系统湿度特性的影响,提出了反应风速与温度对湿度进行联合控制的方式,并通过3kW小型燃料电池样机实验,验证了该方法的可行性。 相似文献
22.
管来良 《武警工程学院学报》2011,(1):82-84
条令是实行科学管理的重要依据。新的共同条令的颁发,为实现科学管理创造了良好条件,也对增强管理的科学性提出了更高要求。院校贯彻落实新条令要强化三个观念:强化贯彻新条令的观念,围绕中心凝聚力量;强化以质量效益为核心的观念,提升教学工作和管理教育水平;强化以人为本的观念,营造和谐的环境氛围。确保院校作风优良、纪律严明、秩序正规,推进院校建设全面发展,提高人才培养质量,促进武警院校正规化建设。 相似文献
23.
基于知识的某新型地空导弹装备的故障智能诊断 总被引:1,自引:0,他引:1
为保障系统可靠运行,及时正确地对系统的各种异常状态或故障状态做出诊断,提出一种基于知识的智能诊断方法,并运用该方法建立一个故障分析和诊断系统;在故障树层次诊断模型的基础上,形成了综合模糊推理和规则推理的混合推理方法.通过具体实例表明,采用该方法是可行的. 相似文献
24.
Risk-Adjusted-Return-On-Capital (RAROC) is a loan-pricing criterion under which a bank sets the loan term such that a certain rate of return is achieved on the regulatory capital required by the Basel regulation. Some banks calculate the amount of regulatory capital for each loan under the standardized approach (“standardized banks,” the regulatory capital is proportional to the loan amount), and others under the internal rating-based (IRB) approach (“IRB banks,” the regulatory capital is related to the Value-at-Risk of the loan). This article examines the impact of the RAROC criterion on the bank's loan-pricing decision and the retailer's inventory decision. We find that among the loan terms that satisfy the bank's RAROC criterion, the one that benefits the retailer the most requires the bank to specify an inventory advance rate in addition to the interest rate. Under this loan term, the retailer's inventory level is more sensitive to his asset level when facing an IRB bank compared to a standardized bank. An IRB (standardized) loan leads to higher profit and inventory level for retailers with high (low) asset. For retailers with medium asset, an IRB loan results in a higher retailer profit but a lower consumer welfare. Calibrated numerical study reveals that the benefit of choosing standardized banks (relative to IRB banks) can be as high as 30% for industries with severe capital constraints, volatile demands, and low profit margins, highlighting the importance for retailers to carefully choose the type of banks to borrow from. When the interest rate is capped by regulation, retailers borrowing from a standardized bank are more likely to be influenced by the interest rate cap than those borrowing from an IRB bank. Under strong empire-building incentives (the bank will offer loan terms to maximize the size of the loan), retailers with medium initial asset level shift their preference from IRB banks to standardized banks. 相似文献
25.
为了提高红外被动寻的防空导弹命中目标的精度,建立了导弹超前修正导引规律的数学模型和仿真模型,并对模型进行分析,得出此规律能确实使导弹改变飞行姿态、实现导弹弹道前向偏移的结论。超前修正导引规律是对经典比例导引规律的修正和提升,更好地满足了红外被动寻的防空导弹的性能指标和命中精度要求。 相似文献
26.
在研究精密和超精密加工技术的发展对直线度误差分离技术所提出的新要求的基础上 ,定量分析了传感器初始对准误差 ,忽略摆角误差和传感器漂移特性差异在时域和频域直线度误差分离方法中造成的误差 ,同时指出了频域方法中权系数对测量误差的放大作用。并讨论了一些消除误差的方法。最后由此得出两点法与三点法相结合的组合方法是最适用于超精密直线度测量的误差分离方法的结论。 相似文献
27.
28.
29.
30.
王奔 《中国人民武装警察部队学院学报》2011,(10):35-37
结合防火工作实际,对现行防火规范及《住宅建筑规范》中的安全疏散问题进行了分析,指出了防火规范中存在的关于安全疏散方面的问题,并进行了深入剖析提出了修订建议。 相似文献