激光诱变微生物的遗传和刺激效应机理及育种研究：ⅡHe—Ne激光…

本文研究了Ｈｅ－Ｎｅ激光对酿酒酵母菌Ｓａｃｃｈａｒｏｍｙｃｅｓ ｃｅｒｅｖｉｓｉａｅ ＡＳ２．１１８９的细胞生长刺激效应。在６个剂量中，观察了激光对酵母菌细胞数的消长变化。并且将酵母菌全静息细胞于倒置显微镜上连续３小时辐照，发现可诱发和促使酵母细胞芽殖生长速度加快。     

激光诱变微生物的遗传和刺激效应机理及育种研究──Ⅲ．不同激光对酵母菌作用的比较

研究了ＣＯ２激光和Ｈｅ－Ｎｅ激光对酿酒酵母菌ＳａｃｃｈａｒｏｍｙｃｅｓｃｅｒｅｖｉｓｉａｅＡＳ２．１１８９的生理刺激作用和诱变效应；就两种激光不同的辐照剂量、酵母菌细胞的消长及其乙醇代谢的变化进行了比较。     

低能量He—Ne激光血管内照射对血脂的影响

应用低能量Ｈｅ—Ｎｅ激光血管内照射外周循环血液，结果显示：与对照组相比较，Ｔ—Ｇ差异显著（Ｐ＜０．００５），Ｔ—ｃｈ与ＨＤＬ—ｃｈ差异非常显著（Ｐ＜０．０１—０．００５）．说明低能量Ｈｅ—Ｎｅ激光血管内照射，可遏制高脂血症及心脑血管病等的发生。     

He─Ne激光对白术种子萌发与幼苗生长的影响

用Ｈｅ—Ｎｅ激光辐照白术种子，并对其发芽势、发芽率、贮藏物质运转率和幼苗株高、叶面积、根长等指标进行检测。结果表明，适宜剂量的激光辐照对白术种子的萌发与幼苗生长有明显的促进作用。     

He—Ne激光血管内照射仪的展顾

Ｈｅ—Ｎｅ激光血管内照射仪的展顾许荣聚，里新阳（辽宁朝阳２３４医院，朝阳１２２０００）９３年仅有２—３个厂家研制Ｈｅ—Ｎｅ激光血管内照射仪，９４年就猛进到几十家，目前估计有上百个厂家、院校和研究所研制和生产此类仪器。除６３２．ｓｕｍ的激光波长外，现已...     

激光照射,免疫抑制剂及其配合对免疫细胞的影响

应用３９．７２Ｊ／ｃｍ＾２的Ｈｅ－Ｎｅ激光连续１４天照射健康大鼠脊背正中线皮肤，并同时分别与亚剂量的免疫抑制剂环孢霉素Ａ，硫唑嘌呤相匹配，观察了它们对Ｔ，Ｂ淋巴细胞数，淋巴细胞转化刺激指数（Ｓ，Ｉ），１０＾６个淋巴细胞ＣＰＭ数的影响，结果表明，大剂量Ｈｅ－Ｎｅ激光和Ａｚ唑嘌呤均可降低大鼠Ｂ淋巴细胞数，大剂量Ｈｅ－Ｎｅ激光，环孢霉素Ａ，硫唑嘌呤及激光照射与二者配合，均可使淋巴细胞转化刺激指数（Ｓ，Ｉ     

激光诱导榆树单倍体植株及无融合生殖的研究

试验应用激光诱导单倍体无融合生殖，主要是通过对琅琊榆（ＵｌｍｕｓｃｈｅｎｍｏｕｉｉＣｈｅｎｇ）、醉翁榆（Ｕ．ｇａｕｓｓｅｎｉｉＣｈｅｎｇ）花药、子房离体组织培养，得出促使出愈率最高并获得器官分化的是Ｈｅ－Ｎｅ激光照射剂量２０Ｊ／ｃｍ２．其中醉翁榆子房愈伤组织经过长达５２０天的分化培养，还能从它的次生愈伤组织中得到绿芽分化。试验还获得琅琊榆人工去雄后用Ｈｅ－Ｎｅ激光、ＣＯ２激光不同照射剂量诱导无融合生殖产生的种子。重复试验发现，经激光处理的去雄花枝一直不发叶，而与ｃｋ形成了鲜明对比。     

激光与~（60）Co－γ射线对花生的诱变效应研究

Ｈｅ－Ｎｅ、ＣＯ２和ＹＡＧ激光对花生幼苗期的生长有刺激作用，但６０Ｃｏ－γ射线对花生幼苗期的生长有一定的抑制作用；Ｈｅ－Ｎｅ和ＣＯ２激光处理的Ｌ１植株总果数和饱果数均比对照增多，但Ｎ２激光和６０Ｃｏ－γ射线处理的Ｌ１值株的总果数和饱果数均比对照减少；Ｈｅ－Ｎｅ、Ｎ２、ＣＯ２激光和６０Ｃｏ－γ射线能诱发花生根尖细胞染色体畸变，且畸变率随辐照剂量的增大而上升；Ｈｅ－Ｎｅ、Ｎ２、ＣＯ２激光和６０Ｃｏ－γ射线所诱发花生的变异性状是可以向继代遗传的。     

He－Ne激光对杜梨种子萌发与幼苗生长的影响

用不同剂量的Ｈｅ－Ｎｅ激光辐照杜梨种子，并进行发芽试验，结果表明，１５．２８Ｊ／ｃｍ２、３０．５６Ｊ／ｃｍ２的辐照对杜梨种子的发芽率、发芽指数、贮藏物质运转率、幼苗干重、下胚轴长度、活力指数均有显著的促进作用，５７．３０ＺＪ／ｃｍ２的辐照则对上述指标有一定的抑制作用。     

He—Ne激光对杜梨种子萌发与幼苗生长的影响

用不同剂量的Ｈｅ－Ｎｅ激光辐照杜梨种子，并进行发芽试验，结果表明，１５．２８Ｊ／ｃｍ＾２３０．５６Ｊ／ｃｍ＾２的辐照对杜梨种子的发芽率、发芽指数、贮藏物质运转率、幼苗干重、下胚轴长度、活力指数均有显著的促进作用，５７．３０Ｊ／ｃｍ＾２的辐照则对上述指标有一定的抑制作用。     

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.