武汉某超高层公寓与酒店建筑的空调系统设计

简要介绍了某超高层公寓及酒店建筑的冷热源、空调、通风及防排烟系统的设计,包括空调负荷计算、空调冷热源、空调末端系统、空调水系统、防排烟系统设计、排油烟系统以及绿色节能技术等。探讨了超高层公寓建筑空调通风系统设计应注意的问题。     

国家超级计算深圳中心空调设计

分析超级计算机空调负荷,介绍超级计算机空调系统概况及空调系统的特殊性,针对特殊性进行了分析。     

空调自控系统设计初探

此文阐述了空调自控系统的设计思想——使用计算机及网络技术实现对邮电通信楼集中空调系统的自动监测、控制和统一管理;阐述了空调自控系统设计的目的、范围、依据及系统设备选型问题;阐述了空调自控系统的设计方法。并讨论了空调自控系统的节能问题。     

暖通空调制冷系统的优化控制策略研究

暖通空调制冷系统在当前建筑行业中发挥着越来越重要的作用。为了进一步研究当前暖通空调制冷系统的优化控制方法,增强暖通空调制冷系统在建筑领域发挥的作用,文章分析了暖通空调制冷系统的工作原理,阐述了暖通空调对于建筑行业发展的重要意义及发展现状,并根据暖通空调制冷系统存在的主要问题论述当前暖通空调制冷系统的优化控制方法。     

基于变风量空调解决通信机房节能及热岛问题的应用

制冷空调系统解决了通信机房的发热问题,空调系统节能降耗已经成为通信机房系统节能的关键环节。文章重点通过介绍通信空调系统"热岛"问题的解决及节能设计,通过引入变风量空调解决通信机房节能及热岛问题,达到既实用又节能增效的目的。     

RS-232及RS-485总线在网络空调控制系统中的应用

本文介绍了RS-232及RS-485总线的基本通讯规则,阐述了基于RS-232及RS-485总线的网络空调控制系统组成,拟定了网络空调控制系统的基本通汛协议。通过具体实例介绍了编码数据的含义,简要论述了网络空调控制系统的功能。实践表明,基于RS-232及RS-485总线的网络空调控制系统性能可靠,功能完备,具有很大的推广应用价值。     

华中科技大学清洁能源学科大楼暖通空调设计

首先介绍了华中科技大学清洁能源学科大楼的建筑概况。然后结合甲方的意见,确定空调冷热源系统,并详细介绍了空调冷热源设计、地源热泵系统设计。根据建筑功能及室内温湿度要求,确定了不同功能房间的空调系统及气流组织。最后介绍了本建筑的通风及防排烟系统设计。     

中国江苏白马农业会展中心空调设计

中国江苏白马农业会展中心集展览、会议、办公及休闲服务等多功能于一体,空调冷热源及空调系统根据各区域的使用性质及特点分别设置.主要从冷热源方案、空调系统形式、BIM正向设计、暖通自控要求、绿色节能措施等方面,介绍了该项目的空调设计.     

某商业综合体项目空调冷热源方案对比分析

主要介绍了某一商业综合体项目的空调冷热源方案对比选取,空调水系统分区及主要功能区域空调末端风水系统的设计思路及做法,设计中充分考虑了前期投资、后期使用及其它多方面因素的影响,为暖通同行从业人员提供设计参考.     

内蒙古广播电视台广播机房空调系统简介

内蒙古广播电视台广播机房空调系统依据广播的特殊性及各类机房的特点设计,根据机房性质进行了不同的设计,各类空调协同工作,满足环境参数的要求,组成最终的空调系统。     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Development of the readout system for waveguide multilayer optical card

Waveguide multilayer optical card （WMOC） is a novel storage device of three-dimensional optical information. An advanced readout system fitting for the WMOC is introduced in this paper. The hardware mainly consists of the light source for reading, WMOC, motorized stages addressing unit, microscope imaging unit, CCD detecting unit and PC controlling ＆ processing unit. The movement of the precision motorized stage is controlled by the computer through Visual Basic （VB） language in software. A control panel is also designed to get the layer address and the page address through which the position of the motorized stages can be changed. The WMOC readout system is easy to manage and the readout result is directly displayed on computer monitor.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

Collinear phase-matching study of terahertz-wave generation via difference frequency mixed in GaAs and Inp

The collinearly phase-matching condition of terahertz-wave generation via difference frequency mixed in GaAs and InP is theoretically studied. In collinear phase-matching, the optimum phase-matching wave hands of these two crystals are calculated. The optimum phase-matching wave bands in GaAs and lnP are 0.95-1.38μm and 0.7-0.96μm respectively. The influence of the wavelength choice of the pump wave on the coherent length in THz-wave tuning is also discussed. The influence of the temperature alteration on the phase-matching and the temperature tuning properties in GaAs crystal are calculated and analyzed. It can serve for the following experiments as a theoretical evidence and a reference as well.     

Effects of the alloy compositions on the phonon-polaritons in ternary mixed crystals

Composition dependence of bulk and surface phonon-polaritons in ternary mixed crystals are studied in the framework of the modified random-element-isodisplacement model and the Bom-Huang approximation. The numerical results for Several Ⅱ - Ⅵ and Ⅲ- Ⅴ compound systems are performed, and the polariton frequencies as functions of the compositions for ternary mixed crystals AlxGa1-xAs, GaPxAS1-x, ZnSxSe1-x, GaAsxSb1-x, GaxIn1-xP, and ZnxCd1-xS as examples are given and discussed. The results show that the dependence of the energies of two branches of bulk phonon-polaritons which have phonon-like characteristics, and surface phonon-polaritons on the compositions of ternary mixed crystals are nonlinear and different from those of the corresponding binary systems.     

New insert layer structure OLEDs

An insert layer structure organic electroluminescent device（OLED） based on a new luminescent material （Zn（salen）） is fabricated. The configuration of the device is ITO/CuPc/NPD/Zn（salen）/Liq/LiF/A1/CuPc/NPD/Zn（salen）/Liq/LiF/A1. Effective insert electrode layers comprising LiF（1nm）/Al（5 nm） are used as a single semitransparent mirror, and bilayer cathode LiF（1 nm）/A1（100 nm） is used as a reflecting mirror. The two mirrors form a Fabry-Perot microcavity and two emissive units. The maximum brightness and luminous efficiency reach 674 cd/m^2 and 2.652 cd/A, respectively, which are 2.1 and 3.7 times higher than the conventional device, respectively. The superior brightness and luminous efficiency over conventional single-unit devices are attributed to microcavity effect.