红外加热节能技术的现状与发展前景

本文综述了国内外节能的现状与发展趋势,论述了远红外电加热领域的发展前景,强调了加强基础理论研究的重要性,介绍了我国红外加热应用的领域和国外新开发的红外产品。     

远红外织物的保健性能

远红外织物是８０年代中期研究开发出的一种通过高效吸收和发射远红外线而具有改善微循环、促进血液循环等功能的新型纺织品。本文通过研究实例综述了国内外近年来对远红外织物保健性能的研究成果。     

基于工作流技术的多媒体远程教学课件模型的设计与实现

利用C／S模型开发多媒体教学课件,通过WEB浏览器访问是多媒体教学研究的发展趋势。文章基于面向对象技术,提出了一种集教学,练习,答疑和考试于一体的交互工作流式多媒体教学模型,并利用办公自动化软件LotusNotes／Domino 在大型机S／390上实现了汇编语言的多媒体教学系统。     

Low‐Frequency Phonons in High‐Pressure High‐Temperature C60 Polymers

Abstract

Inelastic neutron scattering investigations of the orthorhombic (O), tetragonal (T), and rhombohedral (R) pressure‐polymerized phases of C₆₀ as well as the pressure‐dimerized state give evidence for differences in the responses of low‐energy excitations between these phases. These differences are assigned to changes in low‐energy interball modes dynamics as a function of the structure of pressure‐polymerized phases. Far‐infrared transmittance measurements complete the information of the low‐frequency vibrational dynamics of these phases. The temperature dependence of these low‐frequency excitations reveals a strong anharmonicity and possible phase transitions.     

Energy sector of the Russian Far East: Current status and scenarios for the future

This article describes the Russian Far East's energy sector, stressing its limited energy exports, and use of separate electricity and heating grids to geographically dispersed population centers with various supply patterns distributed across a vast territory. One key strategic trend has been to strengthen the potential of the region as an energy supplier for the countries of Northeast Asia. This underlies the framework used to develop three energy scenarios of the Russian Far East's energy future through 2030: Reference, National Alternative and Regional Alternative. While the Regional Alternative case has much greater total costs for implementation, yields almost the same amount of emissions as the BAU case, and requires greater governmental efforts to bring it to reality, it looks preferable for the RFE as a whole because it has a well-balanced primary energy consumption mix, lower energy and ecology/GDP indices, and a lower fraction of energy imports; offers greater diversity of energy supply; and provides better local energy service. The authors would like to thank Boris Saneev, Alexander Sokolov, Alexander Izhbuldin from the Institute of Energy Systems, Irkutsk; Julia Savelieva from Far Eastern Coal Research; and Alla Filatova from Far Eastern Power Engineering Institute for providing technical information, and expertise.     

近距离和远距离通讯系统

这是一个三级近距离及一级远距离通讯系统。近距离通讯采用 RS—232口,远距离采用 RS—422口。本文主要叙述用先进语言 turbo.c 开发通讯程序。这种通讯程序适用性强、简便。既适合近距离,又适合远距离,只要把不同的通讯口地址替换即可。     

Shallow impurities in quantum-well structures: A far infrared view

Recent high magnetic field, far infrared transmission and photoconductivity experiments on shallow donor impurities (Si) doped in the centers of the wells, the centers of the barriers and the edges of the wells in GaAs/AlGaAs multiple-quantum-well (MQW) structures are described. For donors doped in the centers of the wells, transitions to various high excited states have been observed. The assignment of these transitions and their relationship to the hydrogenic transitions in bulk (three dimensional) semiconductors is discussed. The edge-doped samples show dramatic differences in line shape for otherwise identical samples doped at the top and bottom of the GaAs wells. It is concluded from comparison with model calculations that the Si donors are redistributed along the growth direction, and such modeling should permit the determination of the impurity distribution non-destructively. Samples doped in the centers of the barriers show two lines at frequencies lower than that of the well-center impurities. The dominant line is due to electrons in the wells bound to their parent positive donor ions in the centers of the barriers. Possible origins of the weaker line are discussed.     

Observation of the solid-state formation of a TTF–CA complex by terahertz spectroscopy

The solid-state synthesis of a tetrathiafulvalene–chloranil (TTF–CA) complex was demonstrated, and progress in the formation of the complex was monitored using a GaP Raman terahertz (THz) spectrometer. Clear transitions in the THz absorption spectra indicated that the mixture of TTF and CA became the black phase TTF–CA complex. The results of X-ray diffraction, Raman scattering, and FTIR spectra are presented as supporting evidence.     

电离层远紫外日辉辐射反演O/N_2技术

探索了如何从空间对远紫外日辉辐射进行遥感观测,以便为检测高层大气状态提供新的监测方法。针对风云三号(FY-3)气象卫星有效载荷观测结果的数据处理,研究了利用140~180nm波段的LBH(Lyman-Birge-Hopfield)日辉辐射与OI 135.6nm日辉辐射进行O/N2反演的方法。通过研究这两个远紫外日辉观测信号的辐射特性,验证了二者的柱辐射率之比135.6/LBH与太阳活动呈相关关系。检验了太阳活动对O/N2反演曲线的影响,结果表明:太阳活动的变化会造成O/N2反演曲线之间存在比较大的偏差,因此在O/N2的反演技术中必须考虑如何消除太阳活动的影响。本文的工作为FY-3载荷仪器的O/N2图像反演技术的研究奠定了基础。     

染整工艺应用远红外加热技术的研究(Ⅱ)

上期刊登的内容为远红外加热技术应用于染整加工的意义及推广应用的关键，在于运用好远红外辐射加热技术三原则即最佳光谱匹配、定向集中辐射和最佳综合效益，并论证了最佳光谱匹配原则。