热处理炉衬内涂敷SiC涂料的节能

利用SiC发射率高的原理,把自行研制成功的SiC涂料涂敷在热处理电炉、燃料炉炉衬内,经多年使用证明:可使炉子升温速度缩短2/5,节能约8%.     

高发射率远红外涂料作用的探讨

本文阐明了高发射率远红外涂料作用的机理，同时还研究了“ＪＳ－１号”远红外涂料，用它涂覆在国产硬质９５号玻璃上制成的加热器，其节能效果超过乳白石英加热器，并且成本可大幅度降低。本涂料具有粘结牢固、不粉化、不脱落等优点。     

高发射率红外涂料进展

研制了高发射率红外涂料,2.5～25μm内其总发射率可达91％;在650℃的光谱发射率ε_λ=75～90％。其性能近似于灰体。将涂料与无机高温粘接剂混合涂在电阻加热炉的内壁上。在加热升温过程(250～1100℃)明显缩短时间,在4kW电炉上节时效率为25％左右,具有显著节能效果。     

红外涂料的节能评估

讨论了红外辐射涂料的节能机制，分析了涂料对燃料加热炉排烟温度的影响及涂料与炉表温度的关系，并从理论和实践两方面评估了红外涂料的节能作用．     

优质高温红外涂料的研制与应用

研制了一类高温红外涂料,在2.5～5μm波段有很高的热发射率。分析了影响热发射率的若干因素,探讨了提高热发射率的机理。解决了涂料与金属基体的粘接问题,粘结力及热震击性能均达到了国际先进水平。用在高温电阻炉的电阻带及炉衬上,取得了优异的节能效果,此类涂料在低温场合,亦有广阔的应用前景。     

一种在8—12μm波段高发射率涂料的研制

影响目标红外辐射亮度有两个因素：表面温度和发射率。运用涂料是改变发射率的一种简单可行的方法，使用不同发射率的涂料能够灵活有效地使目标热变形，达到隐身的目的。我们研制的一种高发射率涂料（ＦＨ９４－１型）由粘合剂、着色染料、填加剂配制而成。用红外光谱仪测得该涂料在８￣１２μｍ波段有较强吸收特性，这种吸收特性主要来自填加剂。使用ＡＧＥＭＡ９００热像仪，测得８￣１２μｍ波段法向平均发射率εｎ等于０．９２。     

一种在8—12μm波段高发射率涂料的研制

影响目标红外辐射亮度有两个因素：表面温度和发射率。运用涂料是改变发射率的一种简单可行的方法，使用不同发射率的涂料能够灵活有效地使目标热变形，达到隐身的目的。我们研制的一种高发射率涂料（ＦＨ９４－１型）由粘合剂、着色染料、填加剂配制而成。用红外光谱仪测得该涂料在８￣１２μｍ波段有较强吸收特性，这种吸收特性主要来自填加剂。使用ＡＧＥＭＡ９００热像仪，测得８￣１２μｍ波段法向平均发射率εｎ等于０．９２。     

红外涂料在金属发热体上的应用

红外涂料在金属发热体上的应用朱水平，韩仁，张理齐（武汉武钢钢铁研究所４３００８０）本文介绍了红外涂料在武钢硅钢连续退火炉上的应用，并就其对电阻带、辐射管等发热体提高热发射率、节能、延长使用寿命的作用进行了详细的阐述。红外涂料在金属发热体上的应用@朱水...     

粉体材料的法向光谱发射比测试系统的设计

阐述了采用“单光束比较辐射度量法”测量材料的法向光谱发射率的原理和系统设计 方法;改进、设计制作了黑体炉、样品炉、斩波装置、扫描装置和A/ D 转换系统,用V C + + 完成了“法向光谱发射比测试系统中文操作软件”的编写;利用此系统测量了涂料样品的法向光谱发射率。     

高发射率涂料的研究及应用现状

高发射率涂料是一类有着良好热辐射性能的涂料,是一类用途广泛的功能性材料.简单介绍高发射率耐热涂料的组成,分析影响涂层热辐射性能及耐热性能的一些因素,同时列举在国内外此类涂层一些应用情况.     

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.     

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.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output（MIMO） communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks