The experimental design and analysis for wavefront characterizing of an expended laser beam

激光波面分析与检测是精密测量技术的一个研究方向，它是建立在干涉测量技术的基础上而发展起来的。在经典物理学中，杨氏双缝干涉是最经典的干涉现象，这种干涉是基于等倾干涉原理通过条纹的变化来检测相干光束的波面特性。另外，基于等厚干涉技术发展起来的准直光检验器，在高效方便化的准直技术检验方面展现出了巨大的发展潜力。本文以由一块平行平晶组成的准直光检验器为核心，利用扩束镜改变633nmHe-Ne激光器的波面特性，在扩束镜光路轴后方，利用准直光检验器检验扩束激光波面特性，并结合光电技术CCD来呈现光波干涉条纹变化的现象，主要研究内容包括以下几个方面： （1）调节准直光检验器与入射光束的角度，让633nmH...The analysis and detection of the laser beam wavefront is becoming an important branch of the precision measurement technology. It is based on the the principle of the coherent light interference. In classical physics, the most classic phenomenon is the young's double-slit interference. This technique is based on the equal inclination interference principle to test the wavefront characterizing of ...学位：工程硕士院系专业：物理与机电工程学院_工程硕士(电子与通信工程)学号：X201018102

应用ODS 技术解决电子政务系统数据一致性问题

讨论了ODS 技术在电子政务系统中的应用. 将ODS 引入到电子政务系统中形成更为合理的DB2ODS2DW3 层结构,并通过ODS 记录系统和参考表的使用进行全局联机事务处理,使各业务数据库内容可以实时更新,保持数 据的一致性. 从根本上解决密切相关的业务数据库数据不一致的问题

Preparation of Supported Palladium Catalyst by Bioreduction

［中文文摘］将微生物可在常温下还原贵金属离子的特性引入催化剂的制备过程中,利用对Pd2+具有较强还原能力的地衣芽孢杆菌(简称R08)制得负载型Pd催化剂(简称催化剂)。采用X射线光电子能谱(XPS)和透射电镜(TEM)对催化剂进行表征。XPS测定结果表明,室温下R08菌体可将γ-A l2O3载体表面上的Pd2+基本还原为Pd0;生物还原法制得的催化剂的Pd微粒的平均粒径约为5nm。将该催化剂用于2%CO-98%空气(体积分数)混合气的催化氧化反应,CO完全氧化的最低反应温度为60℃,在此温度下催化剂的活性可恒定150h,结果优于相同条件下化学浸渍法制得的催化剂。XPS表征和催化活性评价结果说明,用于CO催化氧化反应的催化剂中单原子Pd活性中心的价态为0~+2。［英文文摘］Pd catalyst supported on γ2a lumina ( nanoparticles) with high dispersion was prepared by bioreduction with Bacillus lichenifoum is ( strain R08) , which was strong in reducing ab ility of Pd2 + . Catalysts prepared by bioreduction and impregnation were cha racte rized by m eans of XPS and TEM.XPS spectra indicated tha t s train R08 could almost completely reduce Pd2 + to Pd0. TEM images showed that average sizes of Pd particles on catalysts prepared by bioreduction and by impregnation were 5 nm and 18 nm, respectively. When catalyst p rep ared by bioreduc tion w as used in ox idization of carbon m onoxide to carbon dioxide, the carbon monoxide could be comp letely oxidized at the lowest temperature of 60 ℃and activity of catalyst could be main tained a t this tempe rature fo r 150 h. The result was better than catalyst prepared by imp regnation. Pd ( Ph2 PCH2 PPh2 ) 2 suppo rted on γ2alum ina was synthesized as catalyst for the oxidation. Results of XPS spectra and activity eva luation indicated that chemical valence state of Pd on active center of catalyst was between 0 and + 2.国家自然科学基金项目(20376067

Study on the Reduction of Supported Noble Metal Ions Using Bacteria

负载型贵金属离子细菌还原的探索研究傅锦坤于新生林种玉胡荣宗（固体表面物理化学国家重点实验室厦门大学化学系厦门361005）刘月英姚炳新翁绳周（厦门大学生物学系厦门361005）生物化学法制备高分散度贵金属（rH、PT、Pd、Ag、Au）催化剂的研究中...The Gram positive bacteria strain D01 selected From various samples, are possessed of the stronger reducing ability. Its culture was easy. Supported Rh 3+ , Pt 4+ , Pd 2+ , A + g, Au 3+ could be adsorbed and reduced by this bacteria.The results obtained by IR techniques shown that there was the biochemistry action between the bacteria and the noble metal ions. Using the cyclic voltammograph method indicated that the reducing ability of the bacteria were stronger. XPS experiments Further indicated above noble ions could be reduced by this bacteria with diFFerent degree, the reduction did not be inFluenced by the kinds of noble metal ions and supports. The results shown that the properties of redox of above noble metal ions For electron transFer were the same. The preparation of Au catalyst with high dispersion ( Au 0 For nanometer particles ) on (Fe 2O 3)was also studied.国家自然科学基金（风险基金）;固体表面物理化学国家重点实验室基

Experimental study on reperfusion of intraocular lens

作者简介: 祁明信, 男, 1945 年7 月 出生, 教授、主任医师、博士研究生 导师, 主要从事白内障的基础与临 床研究。联系电话: 0591-83570887; E-mail:qihuang@netease. com 通讯作者: 黄秀榕,E-mail:[email protected][中文文摘]目的开展晶状体再灌注的离体和动物实验研究,并对再灌注人工晶状体技术进行评价。方法采用新鲜离体幼兔眼、离体猪眼、新西兰白兔眼,应用自行研制的人工晶状体材料,进行以下实验:(1)体外固化实验;(2)晶状体前囊膜微型撕囊及其稳固性实验;(3)经微型前囊膜开口超声乳化吸出晶状体内容物实验;(4)活的新西兰白兔眼内人工晶状体再灌注实验。结果(1)按硅酮聚合物与固化剂50:1的比例可获得柔软、弹性好、固化时间短(完全固化时间为60min)的注入材料;(2)晶状体前囊膜1.8～2.0mm的连续环形撕囊口具有较好的稳定性,可经该微型开口吸出晶状体内容物并灌注材料;(3)超声能量18%、流量25mL·min-1、负压120mmHg(1kPa=7.5mmHg)为晶状体内容物经微型前囊膜开口吸出的最佳条件;(4)注入灌注材料后可形成由晶状体囊膜包裹的、置换原晶状体皮质和核的、新的再灌注人工晶状体。结论采用再灌注人工晶状体的方法可进行新型人工晶状体再灌注,可为治疗白内障和老视提供参考。[英文文摘]Objective To carry out the experimental study on reperfusion of intraocular lens(IOLs) in vitro or in animal,and to assess the technique of IOLs reperfusion.Methods The following experiments were performed by using self-developed materials in fresh rabbit eyes and pig eyes in vitro,as well as in eyes of alive New-Zea-land rabbits:(1)Solidification study of self-developed material in vitro;(2)Continuous circular capsulorhexis(CCC) in anterior capsule of lens and its stability;(3)Draw of lens contents via phaco through mini-CCC;(4)IOLs ref illing in the eyes of alive New-Zea land rabbits. Results(1) Thematerialwhich was soft, springy and short-term solidification(full solidification time was 60 minutes) were obtained in certain proportion of geland solidified agent(50:1) in vitro; ( 2)The CCC in anterior capsule of lens with 1.8-2.0 mm diameter had very good stability. The lens contents were drawn and the materialwere refilled through themini-CCC; (3) The best conditions of drawing out lens contents through m ini-CCC were phaco energy 18% , flow 25 mL·min- 1, and negative pressure 120 mmH g (1kPa=7.5 mmHg);(4) The new refilled IOLs, which were wrapped by capsule of lens and were replaced original cortex and nucleus of lens, were obtained after thematerial refillied. Conc lusion. New IOLs are refilled through this method, which can prov ide reference for the treatment of cataract and presbyopia.福建省科技三项费用;教育厅重点资助项目基金资助(编号:K98041

Adsorption and Hydrogenation of CO over Rh Ag/SiO 2 Catalyst

应用表面反应红外动态技术考察了促进型铑催化剂rH-Ag/SIO2上CO吸附及其加氢反应的性能，结果表明：线式吸附态的CO对氢的反应性能高于桥式吸附的CO，是加氢反应的主要活性吸附态.反应条件下温度升高有利于rH-Ag/SIO2上线/桥CO吸附态强度比值的增加.表面反应生成了表面甲酰基、甲酸盐、乙酰基、乙酸盐、乙烯酮及烯醇盐等关键的C1-2含氧中间体.助剂Ag的加入提高了铑催化剂上CO吸附态的线/桥强度比值以及线式吸附CO的加氢反应速率和C2含氧物的生成率.SurFace reaction inFrared dynamic technique was used to examine the CO adsorption and the hydrogenation properties over promoted rhodium catalyst,Rh Ag/SiO 2.The result indicated that reactivity of the linear CO with hydrogen was higher than that of the bridged CO,and that the linear CO was the major active adsorbed species in the hydrogenation.Increase in temperature Favored increase in the intensity ratio of linear to bridged CO bands on Rh Ag/SiO 2.Some C 1 2 oxygenated intermediates, such as surFace Formyl, Formate,acetyl, acetate, ketene and enolate,appeared in the surFace reaction.Addition of promoter Ag was in Favor of increasing the linear to bridged intensity ratio of the CO adsorption state,and thus the rates of CO hydrogenation and the Formation of C 2 oxygenate on the Rh catalyst.国家自然科学基

总胆固醇/高密度脂蛋白胆固醇比值与缺血性卒中复发关系研究 Correlation between Total Cholesterol / High Density Lipoprotein Cholesterol Ratio and Recurrent Stroke in Patients with Acute Ischemic Stroke

【摘要】 目的 探讨急性缺血性卒中90 d内复发与TC/HDL-C比值的关系。 方法 利用急性缺血性卒中患者氧化应激水平临床观察研究（Study on Oxidative Stress in Patients with Acute Ischemic Stroke，SOS-Stroke）数据库的3605例患者作为研究对象，采用多因素Logistic回归分析急性缺血性卒中患者90 d卒中复发的影响因素。 结果 该研究人群中有231例（6.40%）患者90 d卒中复发，多因素Logistics回归结果显示：年龄（OR1.02，95%CI 1.00～1.03，P=0.011）、糖尿病史（OR 1.44，95%CI 1.00～2.07，P=0.048）是卒中复发的危险因素，住院期间服用降脂药物（OR 0.60，95%CI 0.40～0.90，P=0.012）则是卒中复发的保护因素，急性缺血性卒中患者中TC/HDL-C比值不是卒中复发的预测因素。 结论 TC/HDL-C比值不能预测急性缺血性卒中90 d内复发的风险。 【Abstract】 Objective To investigate the correlation between TC/HDL-C ratio and recurrent stroke within 90 days after onset in patients with acute ischemic stroke (AIS). Methods The data of 3605 patients from the Study on Oxidative Stress in Patients with Acute Ischemic Stroke (SOS-Stroke) were selected. Multivariate logistic regression analysis was used to analyze the influence factors for recurrent stroke within 90 days after onset in patients with AIS. Results Recurrent stroke within 90 days occurred in 231 patients (6.40%). Logistic regression analysis showed that age (OR 1.02, 95%CI 1.00-1.03, P=0.011), history of diabetes (OR 1.44, 95%CI 1.00-2.07, P=0.048) were the risk factors of recurrent stroke, and taking lipid-lowering drugs during hospitalization (OR 0.60, 95%CI 0.40-0.90, P=0.012) was the protection factor of recurrent stroke. Conclusions TC/HDL-C ratio can’t predict the risk of recurrent stroke within 90 days after onset in AIS patients

知識經濟社會中的教育功能 Functions of Education in KBE Society

基於教育一方面應符應社會結構，一方面卻要做為社會變遷的動因，引導社會。本文旨在探討知識經濟社會發展過程中教育的功能。具體目的有三：第一，了解目前知識經濟社會的樣貌；第二，建構知識經濟社會的理想形象；第三，探討教育在知識社會發展過程中教育應有的功能。藉由理論理述、文獻探討，編擬初步調查問卷，再利用德懷術對14位學者專家進行諮詢，先後進行三回合的書面往返討論、修訂，漸漸獲得較大的共識，差異性漸趨減少，最後獲得結論。客觀地了解知識經濟社會的現實面，亦建構出理想知識經濟社會特性計有8項，並澄清知識經濟社會中的教育功能計有9項，以做為教育改革與學術研究之指引。 This paper intended to analyze how education should function in a knowledge-based economy (KBE) society. The education not only corresponds with what the society needs, but also leads a society developing toward an ideal state. Accordingly, three objectives were set: 1. to investigate the status quo of emerging the KBE society. 2. to construct an ideal image for the KBE society. 3. to analyze the functions of education to be performed in the KBE society. Since it concerns not only “what to be”, but also “ought to be”, and what it deals with is a newly controversial issue about KBE society with education. Thus, the Delphi- technique was considered to be as an appropriate approach for this study. Fourteen concerned scholars and professionals concerned were selected as the consulting subjects. After three times back and forth in written forms, the opinions of subjects reached a fair agreement. Through systematical and critical examination of the data collection, the results revealed what the current KBE society shows, and constructed the eight characteristics of an ideal KBE society. At last, the study clarified nine functions which education should perform to meet the demands of the KBE society. It is hoped that the conclusions might be taken as a guideline to future research, as well as for education practice and also as leading for educational innovation in the near future

基于互信息量估计的几何与概率联合整形技术

针对正交振幅调制在高信噪比的加性高斯白噪声(AWGN)信道与香农极限有1.53 dB容量间隙的问题，文章提出了一种基于互信息量估计的几何与概率联合整形的方法，将几何整形与概率整形相结合，提升通信系统的互信息量。文章将互信息量估计作为计算系统互信息量的方式，以最大化互信息量为目的训练发端的编码器，实现几何整形与概率整形。通过在不同信噪比下AWGN信道中的仿真，验证了基于互信息量估计的几何与概率联合整形系统的性能要优于单独进行几何整形或概率整形的性能。在信噪比为10 dB的AWGN信道中，系统的互信息量与几何整形相比有0.041 7 bit/symbol的增益，与概率整形相比有0.027 9 bit/symbol的增益