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661.
本文以Mv=γ P+P'V作为吸放热量的判据,分析了理想气体微过程的热传递情况,讨论了任意准静态过程的热传递规律,总结了决定热传递规律的几个因素.  相似文献   
662.
我国国家赔偿制度虽然对有故意或者重大过失的国家工作人员做出了进行追偿的规定,但是,由于现有规定过于简单、笼统,不具有可操作性,所以,追偿制度未能得到很好地落实.文章从追偿责任的主体、时效、费用限制等方面对追偿制度进行了论述.  相似文献   
663.
Recent resource recovery facility stack tests have increased the available pool of data on emissions from these facilities. This has led to more accurate predictions of emissions from proposed facilities. The source, type, and rate of emissions presented are based upon a review of the literature, theoretical approaches, stack test data from existing facilities, permit levels of other facilities, and discussions with equipment manufacturers. The pollutants selected for study are those regulated by United States Environmental Protection Agency (USEPA) Prevention of Significant Deterioration (PSD) regulations and other pollutants of concern. The pollutants studied are particulate matter, sulfur dioxide, nitrogen oxides, carbon monoxide, nonmethane hydrocarbons, hydrogen sulfide, reduced sulfide, reduced sulfur compounds, total reduced sulfur, lead, mercury, beryllium, arsenic, cadmium, chromium, chromium +6, copper, manganese, nickel, vanadium, zinc, hydrogen chloride, fluorides, sulfuric acid mist, polynuclear aromatic hydrocarbons, polychlorinated biphenyls, vinyl chloride, dioxins, furans, formaldehyde, and asbestos.  相似文献   
664.
在低沸点工质换热试验台上对R134a进行光管、强化管内水平流动的沸腾换热试验,分析讨论了热进口效应以及周向壁面的温度分布.  相似文献   
665.
用卡他温度计测定社鼠毛皮的保温性能,发现缝套和未缝套、不同季节、变温和恒温动物之间相差很大,不同性别、不同海拔高度、变温动物间、恒温动物间差异甚微.  相似文献   
666.
建立了可进行两股及多股流换热器动态特性试验研究的装置.对一.个两股流板翅式换热器施加流量按阶跃变化、进口温度按指数函数变化的时间域扰动信号,进行了动态试验.得到了换热器动态模型对流量扰动可接线性建模的扰动范围,确定了各股流体对进口温度扰动的响应延滞时间的计算公式.对换热器进行了一系列的动态特性测试,并获得其动态响应过程曲线.试验工况的传热单元数范围为0.6~3,雷诺数为200~2000,普朗特数为2~7.试验数据为建立完善的理论模型提供了可对比的依据.  相似文献   
667.
讨论了华蓝废水的滤过性能和沉降性能.采用PE过滤器回收废水中的华蓝颜料,并用压缩空气反吹法卸除滤饼;堵塞的PE管用碱和酸浸泡可使其再生.与板框压滤机相比单位面积上生产能力大幅度提高,效益显著.  相似文献   
668.
近年来 ,我国经济增长速度日趋减缓 ,主要是受到居民收入瓶颈和“不成熟市场经济”体制瓶颈的制约。前者表现在两方面 :一是因农业、工商业不景气引起的居民可支配收入减少 ,二是居民收入差距拉得过大 ;后者体现为货币政策和财政政策的失灵 ,其原因在于政府宏观调控举措与不成熟市场经济不相适应 ,在市场主体、市场机制、市场秩序和社会保障体系等方面缺乏微观经济体制基础。  相似文献   
669.
The authors consider a special case of inference in the presence of nuisance parameters. They show that when the orthogonalized score function is a function of a statistic S, no Fisher information for the interest parameter is lost by using the marginal distribution of S rather than the full distribution of the observations. Therefore, no information for the interest parameter is recovered by conditioning on an ancillary statistic, and information will be lost by conditioning on an approximate ancillary statistic. This is the case for regular multivariate exponential families when the interest parameter is a subvector of the expectation parameter and the statistic is the maximum likelihood estimate of the interest parameter. Several examples are considered, including the 2 × 2 table.  相似文献   
670.
In recent years people with eating disorders have begun to discuss their experiences on the Internet. While attempts to explain eating disorders in contemporary society have concentrated on their etiology as problems of individuals, the family or society, in their postings on the Internet, some people who have recovered discuss eating disorders as “eating problems” caused by excessively strict dieting. Further, they believe they overcame their disorders by consuming regular meals. The present research attempts to shed light on both the conditions surrounding sufferers of eating disorders and the direction that some have taken to affect their recovery. In this article I focus on the narratives of two people who have recovered from bulimia nervosa. I examine why they refer to their illness as an eating problem, rather than accepting conventional explanations. Further, I consider what they are trying to achieve in doing so. Two results were obtained. First, it was determined that, though both of the subjects of this research were familiar with the conventional etiological explanations of eating disorders, they both also criticize the individual, familial and societal interpretations for providing no solution. Second, it became clear, through narratives explaining eating disorders as eating problems that can be solved via eating exercises, that the subjects were attempting to reclaim the means of ending their binging and regurgitation and, more broadly, the right to solve their own problems.  相似文献   
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