对北京市供热体制改革的几点思考

根据北京市供热体制的现状和存在的问题 ,对今后供热体制改革的基本思路、解决办法进行了思考分析 ,并提出相应的建议     

地坪式采暖系统应用前景

本文介绍地坪式采暖系统的结构、性能及它的应用前景。     

Practical Aspects of Analyzing Vegetable Oils in Fire Debris*

Abstract: Vegetable oils undergo burning, self‐heating, and spontaneous ignition, resulting in their presence in fire debris. As these processes can affect the fatty acid content of vegetable oils, it is important that debris be properly handled in order to obtain reliable and informative data. This research investigated changes in vegetable oil content as a result of storage conditions and different types of burning. Material spiked with vegetable oils and burned was stored under various long‐term conditions, and debris was tested by heating overnight using passive headspace concentration. Results indicated that refrigeration is ideal for fire debris samples suspected of containing vegetable oils and that including passive headspace concentration in the analytical scheme would not affect oils. Spontaneous ignition experiments were conducted to compare the effects of various burning processes on vegetable oil content. Vegetable oils that experienced nonpiloted ignition, self‐heating, and spontaneous ignition produced noticeably different chromatograms from those that underwent piloted ignition.     

芬兰利用区域供热系统的热制冷

在夏季采用区域供热系统的热量作为吸收式冷凝器制冷系统的能源,可代替电和机械能源制冷。     

试论低谷电能采暖的环境与经济效益

各城市大量的低谷电没有利用 ,电价是峰电的 1 /3左右。电热锅炉在夜间利用低谷电能蓄热 ,既可供暖 ,又可蓄热 ,且不产生任何污染     

浅谈住宅供暖方式多样化

文章对集中供热、户用燃气炉和电采暖 3类主要供暖方式分别做了介绍 ,指出其适用范围 ,就如何认识“住宅供暖方式多样化”发表了个人的几个观点     

Comparison of Chemical and Heating Methods to Enhance Latent Fingerprint Deposits on Thermal Paper

A comparison is made of proprietary methods to develop latent fingerprint deposits on the inked side of thermal paper using either chemical treatment (Thermanin) or the application of heat to the paper (Hot Print System). Results with a trial of five donors show that the application of heat produces statistically significantly more fingerprint ridge detail than the chemical treatment for both fingerprint deposits aged up to 4 weeks and for a nine sequence depletion series. Subjecting the thermal paper to heat treatment with the Hot Print System did not inhibit subsequent ninhydrin chemical development of fingerprint deposits on the noninked side of the paper. A further benefit of the application of heat is the rapid development of fingerprint deposits (less than a minute) compared with up to 12 h for the Thermanin chemical treatment.     

供热合同履行中的侵权问题研究——以长春地区为例

城市供热与人们的生活息息相关。在供热合同的履行过程中,经常会出现纠纷。除了供热合同纠纷外,侵权纠纷也占据供暖合同履行过程中纠纷的大部分。经常出现的侵权纠纷主要集中在供暖前暖气试水、供热过程中的暖气漏水以及供热管网的维修过程中。通常在确认责任承担问题上对供热设施产权界定非常重要,它直接涉及到承担责任主体。因此,本文力图通...