摘要：For further understanding of self-heating of coal,we tested the reactions of seven different ranks of coal under inert *** the test,50-gram of coal sample ranged from 0.18 mm to 0.38 mm was put into a special designed copper reaction vessel and let pure nitrogen to flow into the coal sample from the bottom at a rate of 100 mL/*** programmed temperature enclosure was run at a programmed rate of 0.8 °C/*** concentration of the carbon oxides and the coal temperature were *** results show that the coal reactions under inert atmosphere can generate CO and *** reactions under inert atmosphere are affected by coal ranks,initial pore structure of coal and sulfur *** low ranks of coal,the productions of carbon oxides are *** coal temperature is lower than the surrounding temperature throughout the reactions under inert atmosphere,but it rises quickly and reaches a crossing point temperature in the later stage under dry-air *** on the analysis,it indicates the self-reaction of initial active groups exists in the self-heating of coal besides the reactions in the two parallel reactions *** combustion of coal is due to both the oxidation heat accumulation and the chain reaction.A new reaction model of self-heating of coal was proposed.

摘要：进一步的理解煤自我加热被调查煤的不同等级的交叉的点温度(CPT ) 获得。测试为煤用一个自我设计的试验性的系统被执行自我加热。50 g (???

摘要：设计了一个超高频射频识别读写器的基带接收机,该芯片既支持UHF频段的ISO18000-6B标准,也能支持ISO18000-6C标准。该数字基带接收机主要包括抽取滤波、去直流、相位恢复等基本单元,在解码部分体现了一种新的数字基带解码器。该解码器在过零检测解码方法的基础上进行了"零点"的修复,从而可以更加有效地实现解码。和相关器解调解码相比,这种方法所需硬件更少,解码的实时性更强。不包括测试管脚,该数字芯片在0.18μmCMOS工艺下的总面积为730μm×3375μm,其中解码部分占总面积的1%;整个数字芯片的功耗为32.89mW,解码部分的功耗为0.23mW。

摘要：设计了一套基于模糊数风险分析法的智能汽轮机控制系统:通过对汽轮机的运行特点进行研究,将汽轮机的启动过程划分为若干个步序依次执行;采用模糊数相似度风险分析法,对汽轮机启动过程中的风险进行预估和管控,并结合运行人员经验,以确定是否执行下一步序,据此规划适宜的启动路径。该技术实现了采用非热应力模型的汽轮机自启动控制,对国产汽轮机自启动技术的研究与应用具有一定的参考价值。

摘要：本文介绍了CFZ195柴油机的设计思路、主要部分的设计方案及结构特点、主要性能指标及试验研究情况。