新型锍鎓盐类光生酸剂的产酸性能研究

对合成的两种新型锍鎓盐光生酸剂进行了基本物性考察，表明它们有较高的热分解温度和在常用有机溶剂中有较好的溶解性，并考察了其在405、365nm下乙腈中的分解及产酸性能。根据本实验室研究的方法计算出分解量子产率和产酸效率。     

光生酸剂光分解行为的研究

论文以对酸敏感的罗丹明B为示踪剂，通过采用分光光度法和荧光光谱法，建立了光生酸剂在溶剂中和在高分子薄膜中光分解行为的评价方法。研究结果表明，本研究提出的光生酸剂在溶液中和在高分子薄膜中产酸效率的评价方法切实可行，能够准确地定量评价光生酸剂的光化学反应和产酸行为，用这种测量方法可以评价现有的三嗪类与硫翁盐类光生酸剂的产酸优劣。     

荧光分光光度法在光生酸剂产酸测试中的应用

采用荧光分光光度法测试荧光素和罗丹明B作为荧光示踪剂的性能及介绍其在光生酸剂产酸测试中的应用。测试了膜中荧光素和罗丹明B两种示踪剂荧光强度与酸浓度的变化关系，比较了荧光素和罗丹明B在测试光生酸剂产酸中的性能优劣，从而得出了较优秀的荧光示踪剂。     

几种硫鎓盐类光产酸剂的合成与性质

硫鎓盐类光产酸剂因其较高的产酸效率和好的热稳定性而广泛应用于化学增幅光致抗蚀剂中。本论文选择不同的酚化合物为原料,使之与二甲基亚砜和氯化氢反应,合成了一系列硫鎓盐化合物,研究了其在有机溶剂中的溶解性、热稳定性、紫外吸收性质及其光解特性。以低压汞灯为曝光光源,测定了该类光产酸剂的光解量子效率在0.2—0.7范围。     

光交联型成像材料及其印刷基本性能研究

本文研究了一种酸致交联型CTP版材成像体系,利用三嗪类光生酸剂见光产酸引发酸敏树脂（酚醛树脂）交联原理,通过曝光、烤版、显影形成图像,并且研究了其成像条件,并与传统PS版材的图文和非图文接触角进行了比较。用制备的版材上机印刷,得到了图像完整清晰的印刷品。     

含硫光引发剂的进展

综述了国内外近３０年含硫光引发剂或称光增感剂的进展。对其中性能较好、实用价值较大的硫杂蒽酮系、硫醚二苯甲酮系、锍盐或盐系，以及我们新研究开发成功的新型含硫光引发剂作了重点介绍。     

甲基丙烯酸叔丁酯与甲基丙烯酸共聚树脂成像性能研究

本研究合成了甲基丙烯酸叔丁酯（TBMA）的均聚物及其与甲基丙烯酸（MAA）、苯乙烯（St）的共聚物,并与二乙烯基醚（BPA-DEVE）和光生酸剂（PAG）构成光敏成像体系。研究了两种不同光生酸剂和不同后烤版温度下体系的成像条件。研究表明：3,4-二甲氧基苯乙烯三嗪（DMOPV-TA）曝光产生的HCl对树脂中TBMA单元的酸解效果较差,但其对羧酸和BPA-DEVE形成的交联结构有较好的解交联效果;三苯胺硫鎓盐（TPASS）曝光产生的三氟甲磺酸对树脂中TBMA单元的酸解及体系解交联都有较好效果;同时,后烤版温度为140℃时成像感度高;在一定范围内,共聚树脂中MAA含量增加,体系的成像感度也增加。     

UV光催化桐油基多元醇的制备及表征

首先将桐油与甲醇经过酯交换反应制备桐酸甲酯,然后在浓硫酸的催化下将其与过氧化氢和乙酸反应,制备环氧桐酸甲酯,最后以阳离子光引发剂(三芳基硫鎓盐)为催化剂,在UV光照条件下催化环氧桐酸甲酯与二乙醇胺进行光化学开环反应,制备桐油基多元醇。并通过红外光谱、紫外光谱、核磁波谱、凝胶色谱等方法来鉴定产物的结构。结果表明,在UV光下三芳基硫鎓盐可以催化环氧桐酸甲酯开环制备桐油基多元醇,其羟基值为599.54mg KOH/g,平均分子量为544。     

鎓盐类阳离子光引发剂的研究进展

介绍了几种有代表性的鎓盐类阳离子光引发剂--芳基重氮盐、芳基翰盐和二烷基苯甲酰硫盐的研究进展情况,探讨了各引发剂的光解机理和优缺点,并提出了增强鎓盐光敏性的方法和相关机理,介绍了有代表性的3类光敏剂以及近年来研制的一些新型光敏剂,概述了大分子鎓盐引发剂的研究情况,最后简要说明了鎓盐阳离子引发刺的发展趋势及应用.     

含磺酸正丁酯单元聚合物的热性能研究

本研究对p-乙烯基苯磺酸正丁酯（BPSS）与甲基丙烯酸甲酯（MMA）按不同比例共聚得到的二元共聚物进行了较系统的热性能研究。通过DSC和IR分析测试手段,发现该类聚合物在200-240℃发生热分解,聚合物中的磺酸酯基团能够在较短时间内分解生成磺酸,并且其热分解表现出自加速效应。同时,进一步研究表明在加入三苯胺硫盐热生酸剂后,磺酸酯基团热分解所需能量大幅度降低,并且实现中性水溶所需烤版时间也有所减少,聚合物能够发生较大的亲和性变化。     

凝固科学技术与材料

从凝固科学与实践发展的角度介绍了当前凝固材料体系的基本框架和凝固科学主要发展阶段的基本理论。作为材料科学与工程的基本组成，凝固科学技术正在现代科学理论的基础上针对传统材料的改性提高和新材料的发展需求，以控形、控构、控性为目标开展优质铸件的定向、晶体生长、快凝、深过冷及各种新型和超常领域凝固过程的研究，并介绍了其中某些方面和展望了可能的发展趋势。     

江澳两地高校文创设计的协同研究与商业实践

目的 探索江门世遗文化的传承、发展和转化的新思路,践行国家在《粤港澳大湾区发展规划》纲要中要求江门承担与港澳地区文化创意合作与开发任务的分工。方法 与澳门高校紧密合作,开展专业培训课程,以开平碉楼为例,从人文视角开展设计研究,梳理开平碉楼的文化脉络,把世遗文化的元素和其背后的文化融入文创产品中,提升文创产品的附加值,推动当地文创产业结构的变革。结果 两地高校构建了稳定的科研团队,开设长期有效的设计培训课程,与景区建立了研究协作关系,帮助景区构建了一套产销研的商业模式。结论 以跨区域高校合作为平台,以文创产品为抓手,依托江澳两地的资源优势,可以构建江门世遗文化全新的品牌形象,最终推动开平世遗文化的活化。     

The Candela and Photometric and Radiometric Measurements

The national measurement system for photometric and radiometric quantities is presently based upon techniques that make these quantities traceable to a high-accuracy cryogenic radiometer. The redefinition of the candela in 1979 provided the opportunity for national measurement laboratories to base their photometric measurements on optical detector technology rather than on the emission from high-temperature blackbody optical sources. The ensuing technical developments of the past 20 years, including the significant improvements in cryogenic radiometer performance, have provided the opportunity to place the fundamental maintenance of photometric quantities upon absolute detector based technology as was allowed by the 1979 redefinition. Additionally, the development of improved photodetectors has had a significant impact on the methodology in most of the radiometric measurement areas. This paper will review the status of the NIST implementation of the technical changes mandated by the 1979 redefinition of the candela and its effect upon the maintenance and dissemination of optical radiation measurements.     

Creation and motion of dislocations and fracture in metal and silicon crystals

By making a step on one surface ( ) of a rectangular small paralellepiped copper crystal, dislocations could be created by the molecular dynamic method. The dislocation created was not a complete edge dislocation but a pair of Heidenreich-Shockley partial dislocations. Each time a dislocation was created, the stress on the surface was released. Small copper crystals having a notch were pulled (until fracture), compressed and buckled by use of the molecular dynamic method. An embedded atom potential was used to represent the interaction between atoms. Dislocations were created near the tip of the notch. A very sharp yield stress was observed. The results of high speed deformations of pure silicon small crystals using the molecular dynamics are presented. The results suggest that plastic deformation may be possible for the silicon with a high speed deformation even at room temperature. Another small size single crystal, the same size and the same surfaces, was compressed using molecular dynamic method. The surfaces are {110}, {112} and {111}. The compressed direction was [111]. It was found that silicon crystals are possible to be compressed with a high speed deformation. This may suggest that silicon may be plastically deformed with high speed deformation.     

Error and uncertainty in modeling and simulation

This article develops a general framework for identifying error and uncertainty in computational simulations that deal with the numerical solution of a set of partial differential equations (PDEs). A comprehensive, new view of the general phases of modeling and simulation is proposed, consisting of the following phases: conceptual modeling of the physical system, mathematical modeling of the conceptual model, discretization and algorithm selection for the mathematical model, computer programming of the discrete model, numerical solution of the computer program model, and representation of the numerical solution. Our view incorporates the modeling and simulation phases that are recognized in the systems engineering and operations research communities, but it adds phases that are specific to the numerical solution of PDEs. In each of these phases, general sources of uncertainty, both aleatory and epistemic, and error are identified. Our general framework is applicable to any numerical discretization procedure for solving ODEs or PDEs. To demonstrate this framework, we describe a system-level example: the flight of an unguided, rocket-boosted, aircraft-launched missile. This example is discussed in detail at each of the six phases of modeling and simulation. Two alternative models of the flight dynamics are considered, along with aleatory uncertainty of the initial mass of the missile and epistemic uncertainty in the thrust of the rocket motor. We also investigate the interaction of modeling uncertainties and numerical integration error in the solution of the ordinary differential equations for the flight dynamics.     

PSD和PWELCH函数的分析改进及应用

针对MATLAB中两个内建功率谱密度计算函数psd()和pwelch()计算结果迥异的现象,在功率谱密度估计理论的基础上,根据经典的周期图理论和Welch平均周期图方法,通过详细分析源程序,解析计算方法,发现psd()计算的并不是工程单边功率谱密度,而是采样信号双边谱,故与pwelch()结果迥异,另外pwelch()不能对分段信号数据进行预处理。就上述不足提出了相应的改进措施,比较验证表明改进措施行之有效。     

Miniature and MEMS-type vacuum sensors and pumps

In the paper, the observable trends of the actual research and development of selected types of miniature and MEMS-type vacuum sensors are presented. Some information about the new types of active vacuum gauges, which are offered by the leading manufacturers of the vacuum measurement instruments, is given. Next, the list of MEMS devices that need vacuum for proper operation is presented. Some aspects of vacuum-encapsulation of MEMS devices, on wafer level and package level are shown. The new conceptions of obtaining and maintenance of high and ultra-high vacuum in MEMS devices are described. They concern the conception of integration of a miniature orbitron pump on-chip with MEMS-type device or with vacuum part of the portable advanced instruments such as electron microscope, ion mass spectrometer, and free electron laser.