现代化印刷中的激光技术

提出了激光在印刷中的应用,从实际应用的角度阐述了激光在现代印刷中的应用.例如在直接制版中、采用CTP的激光雕刻技术中、数字印刷技术、调制器等.从以上各个方面的应用从而说明了激光在现代印刷中具有重大的作用.     

浅议IGBT模块

IGBT模块在现代电力电子技术中得到了越来越广泛的应用,在较高频率的大、中功率应用中占据了主导地位。     

专家系统在拆除爆破中的应用

拆除爆破是一门理论上发展尚不完善，在实际工程中仍主要依赖于设计者经验的应用学科，专家系统在这一领域的应用研究显得十分必要。本文简述了专家系统在工程爆破中的应用现状，分析了专家系统在拆除爆破中的应用研究的意义，并对专家系统在拆除爆破中应用研究的可行性和发展前景进行了探讨。     

GPS技术在水利工程测量中的应用分析

近年来在社会快速发展过程中,我国水利工程事业取得了较快的发展,在水利工程建设过程中,GPS技术在工程测量中应用十分广泛,这有效地提高了水利工程测量工作的效率和测量结果的精确度,对水利工程安全施工奠定了良好的基础。文中从GPS技术在水利工程测量中应用的优点入手,分析了GPS技术在水利工程测量中的应用现状,并进一步对GPS技术在水利工程测量中的应用进行了具体的阐述。     

专家系统在拆除爆破中的应用

拆除爆破是一门理论上发展尚不完善，在实际工程中仍主要依赖于设计者经验的应用学科，专家系统在这一领域的应用研究显得十分必要。本文简述了专家系统在工程爆破中的应用现状，分析了专家系统在拆除爆破中的应用研究的意义，并对专家系统在拆除爆破中应用研究的可行性和发展前景进行了探讨。     

管理会计在现代企业中的应用现状及对策

加强管理会计的研究和在企业中的应用有着重要的意义。文章分析了管理会计在我国企业中应用的问题,并在此基础上提出了提高管理会计在企业中应用水平的建议和举措。     

中高温热泵技术在工业中的应用现状

分析了中高温热泵技术的特点及其应用前景,并通过典型的工程实例介绍了我国中高温热泵技术在工业中的实际应用情况,最后总结了中高温热泵技术在工业应用中的注意问题和发展方向,为中高温热泵技术在我国的推广应用与高效运行提供有效参考。     

活性炭吸附及其组合消毒技术

文章概述了活性炭吸附和紫外线消毒技术在家用净水器中应用的技术优势,介绍了紫外线消毒技术在水处理领域应用的评价标准以及目前在家用净水器中应用的制约因素。     

房屋建筑施工中ERP系统应用探析

根据多年来的施工经验,笔者认为信息化的管理在建筑施工企业中应用极为重要,尤其在房屋建筑施工企业中。文章简述了目前房屋建筑施工中ERP系统应用建议,阐述了ERP系统的应用实施,最后得出结论。     

石墨烯及氧化石墨烯在纺织领域的应用

本文阐述了石墨烯及氧化石墨烯在纺织领域的应用研究进展,介绍了石墨烯及氧化石墨烯的特性和结构特点,系统总结了石墨烯纤维、石墨烯复合纤维的开发以及在纺织中的应用、石墨烯功能织物的开发和应用现状,指出石墨烯在纺织中应用已成为热点,并且其应用价值已得到体现.同时,石墨烯在纺织中的应用还存在许多问题,相信随着研究的不断深入,其在纺织中应用必将会有更广阔的前景.     

Nanostructured electronic and magnetic materials

Research and development in nanostructured materials is one of the most intensely studied areas in science. As a result of concerted R & D efforts, nanostructured electronic and magnetic materials have achieved commercial success. Specific examples of novel industrially important nanostructured electronic and magnetic materials are provided. Advantages of nanocrystalline magnetic materials in the context of both materials and devices are discussed. Several high technology examples of the use of nanostructured magnetic materials are presented. Methods of processing nanostructured materials are described and the examples of sol gel, rapid solidification and powder injection moulding as potential processing methods for making nanostructured materials are outlined. Some opportunities and challenges are discussed.     

Materials for magnetic refrigeration between 2 K and 20 K

As part of a research and development programme on magnetic refrigeration, paramagnetic materials suitable for magnetic refrigeration in the 2 to 20 K range have been studied. The bestgadolinium materials with known properties, as derived from a literature survey, are plotted. For one of those materials, gadolinium gallium garnet, we present the results of our field-dependent heat capacity measurements. Preparation and fabrication of gadolinium compounds are discussed briefly as well as the scope for further work for selecting and studying working materials for magnetic refrigeration.     

Magnetic Sensor Principle for Susceptibility Imaging of Para- and Diamagnetic Materials

In ferromagnetic materials, magnetic domain walls interact with microstructure over similar mechanisms as dislocations do. Under the absence of stress as an additional influence, the magnetic properties of these materials are often correlated with mechanical-technological characteristics such as hardness and strength. This fundamental observation is the basis of micro-magnetic materials characterization. It is not yet well known, but quite legitimate to assume that such a correlation also exists between magnetic and mechanical properties of para- and diamagnetic materials, since the interactions on the electron spin level depend on the molecular structure and determine the magnetic behavior. Similar effects are known to exist in the electrical domain. As an example, the electrical conductivity of nonmagnetic materials such as aluminum or nickel based alloys, which can be assessed non-destructively using eddy current impedance measurements, is affected by stress and dislocation density. Much less is known about the correlation between the mechanical properties and the magnetic susceptibility of non-ferromagnetic materials such as graphite, aluminum and plastics. Today, there is no commercialized non-destructive method which uses the concept of magnetic susceptibility measurements for the characterization of dia- and paramagnetic materials. This article proposes a force-based magnetic sensor principle for susceptibility imaging of such materials.     

磁性多孔碳材料的研究进展

磁性多孔碳材料同时具有磁性和多孔性质,其拥有丰富的孔道结构、高的比表面积、高孔容、良好的活性位点和磁性可分离等优异的性能,可以很好的解决多孔碳材料在应用过程中难分离回收等问题,因此,磁性多孔碳材料已经在吸附领域得到广泛的应用.按照孔径大小、磁性强弱以及组合方式的不同将磁性多孔碳材料进行了分类,并综述了近年来磁性多孔碳材...     

Deuton-M Magnetic Tapes and Sheets for Cards

1. IntroductionMagnetic cards have been the major position ofdata carrier for personal financial transaction andidentification data for several decades. Most of themagnetic card is a so-called "plastic card" or "magnetic stripe card" with a magnetic stripe flushed withthe card surface, and used as the bank card, the creditcard, the debit card, the iD card, etc. Recentlyl highcoercivity magnetic stripe card "HiCo" has been introduced to the market and taking place of the low coercivity magneti…     

磁制冷材料中一级磁相变的研究进展

磁制冷技术作为21世纪的新一代制冷技术已经受到了关注。因此近年来具有一级磁相变的磁制冷材料成为全球学术界的一个研究热点,并越来越受到工业界的重视。主要介绍了磁制冷材料中的一级磁相变特点,综述了具有一级磁相变的磁制冷材料的研究进展和应用现状。最后展望了具有一级磁相变的磁制冷材料的发展趋势。     

Humidity-induced magnetization and magnetic pole inversion in a cyano-bridged metal assembly

In general, magnetic properties of bulk magnetic materials are independent of the humidity of the environment. To obtain a magnetic material that has humidity-sensitive characteristics, water vapour must penetrate the lattice and act on spin sites. Nanoporous materials composed of metal-assembled complexes may be expected to display some humidity response because materials in this category can show functionalities such as gas storage and molecular recognition. Here, we demonstrate humidity-induced reversible variations in the magnetic properties of cyano-bridged cobalt(II)-manganese(II)-chromium(III) metal assemblies. The observed magnetic humidity response is due to adsorption and desorption of a ligand water molecule on the cobalt ion, which changes cobalt (II) between a 6- and 4-fold coordination geometry and switches the magnetic interaction between ferromagnetic coupling and antiferromagnetic coupling.     

纳米磁性材料及其应用

纳米磁性材料是纳米材料中最早进入工业化生产,应用十分广泛的一类功能材料,纳米磁性材料的特性不同于常规的磁性材料,其原因在于与磁性相关联的特征物理长庆恰好处于纳米量级,例如,磁单畴尺寸,超顺磁性临界尺寸,交换作用长度,以主电子平均自由路磁程自由路程等大致处于1－100nm量级,当磁性体的尺寸与这些特征物理长度相当时,就会呈现反常的磁学与电学性质,利用这些新特性,已涌现出一系列新材料与众多应用。     

金属磁粉心的研究现状及发展趋势

金属磁粉心材料由金属软磁粉末、有机或无机绝缘添加剂和粘结剂组成,其是以金属软磁粉末为原料,经过绝缘包覆、压制成型和热处理等工艺制成的软磁复合材料。本文系统阐述了金属磁粉心材料的材料分类、制备工艺、磁性能及其应用,同时对其未来的发展趋势做了预测,为今后金属磁粉心的研究与发展提供了参考。     

Properties,Benefits, and Application of Nanocrystalline Structures in Magnetic Materials

The magnetic properties of nanocrystalline hard magnetic and soft magnetic are summarized. When the grain size becomes of the order f the magnetic exchange length exchange coupling occurs. The different concepts of exchange coupling in these materials are discussed. Exchange coupling leads in isotropic hard magnetic materials to a remanence enhancement. Soft magnetic materials exhibit due to exchange coupling a lower coercivity, lower losses and consequently also improved properties.