Structural damage studies in conducting indium-tin oxide (ITO) thin films induced by Au swift heavy ions (SHI) irradiation

Spray pyrolysis deposited indium-tin oxide (ITO) thin films were fabricated and irradiated using Au⁸⁺ swift heavy ions (SHI) (100 MeV energy), at different fluency doses ranging between 1×10¹¹ ions/cm² and 1×10¹³ ions/cm². After irradiation, significant changes have been observed in surface morphology and crystallographic structure pertaining to increase in grain size, change in surface roughness, crystallographic disorders of large crystallites, and noticed a net decrease in optical transmittance and electrical resistivity of these films.     

低能质子注入金属靶实验中的核现象研究

在低能（60－360keV）质子注入氚化钛（Ti^2Hx）、钛（Ti)、钼底衬 箔及钼（Mo）和不锈钢（SS）等金属样品的实验中,观测了能量分别约为3．9、5．6和8．4MeV的带电粒子物。用符合望远镜和吸收片法进行了粒子鉴别的结果表明：这些带电粒子均具有α粒子特性。3种α粒子来自质子与不同靶核发生的垒下核反应。其中,能量为3．9MeV的）α粒子具有很高的产额,其对应核反应的准激发函数曲线在150－330keV能区内,随入射质子能量增大呈指数增长趋势。上述反应产物可能源于^11N(p,α)^12C,^11B(p,α)^8Be和^7Li(p,α)^4He等核反应。但相关靶核的来源仍有待解释。利用扫描电子显微镜观测到有微球状的奇异形貌。     

广布疲劳损伤裂纹萌生问题研究

围绕广布疲劳损伤裂纹萌生问题研究了广布疲劳损伤裂纹萌生寿命与广布疲劳损伤出现时间的关系,以及MSD对裂纹萌生寿命的影响。给出了根据疲劳开裂情况确定的裂纹萌生寿命和损伤累积的修正计算方法,解决了MSD结构中细节疲劳裂纹萌生寿命计算问题同时计及了MSD对裂纹萌生的促进加速效果。     

配电网运行区域的划类分析

配电网运行时的电能损耗在整个电网的网损中占有很大比重，因此，搞好配电网负荷管理和技术改造，可以降低网损、减少成本、提高经济效益。从配电网的网损与网损率的解析计算入手，分析了配电网运行中电能损耗的特殊规律，提出了经济运行负荷Pec与最小网损率△Amin％两个概念，导出了计算公式，给出了划分配电网经济运行区域[P]ec解析方法，阐述了各类运行区域的特点及管理要点，对配电网的降损节电，提高经济运行水平和搞好配电网的技术改造具有一定的指导意义和现实意义。     

对建筑抗震性能的几点认识

结合参加四川抗震救灾中看到的建筑震害现状,对地震及地震对建筑的影响有了更深刻的认识,在此基础上,对如何提高建筑抗震性能问题进行了探讨,并提出一点看法。     

紫外光固化环氧丙烯酸酯光敏预聚物改性研究进展

介绍了近年来环氧丙烯酸酯改性的研究进展,分别从二元酸及酸酐、醚、酯、双羟基化合物及硅氧烷等方面对环氧丙烯酸酯的改性进行了论述。     

Optimal metric for condition rating of existing buildings: is five the right number?

In the context of the built environment in the recent years, the concept of maintenance has changed from corrective to preventive maintenance. There is evidence that preventive maintenance is much more efficient than corrective maintenance, since severe deteriorations that may represent danger to people are avoided, and also money is saved. To make periodic inspections of the buildings is useful to quantify, the extent to which deteriorations are severe or not, in order to facilitate decision making and prioritise interventions. To this purpose, many scales have been used and are used to assess the severity of damage and degradation of the building components. But it appears evident that there is not consensus among users and these scales are different between them, with different number of degrees and metrics for the measurement of the condition state. The main goal of this paper is to calculate which is the optimal metric (which is the optimal number of degrees) of a severity scale of damages in buildings, so the corresponding scale could be of widespread and of common use among professionals, avoiding the problems of comparison between different evaluators. The proposed methodology to calculate the optimal metric of a scale can be also extended to other scopes.     

快速光造型实验装置研制

快速光造型是一种新颖的立体模型快速制造方法，它综合运用了激光、ＣＡＤ／ＣＡＭ、高分子材料等多领域高效技术，具有十分广阔的应用前景。但迄今为止，国内尚无产同用设备问世。     

开路p－n结对近邻光电二极管特性的影响

对ｐ－ｎ结邻近有大面积受光开路ｐ－ｎ结的光电特性进行了理论和实验分析。结果表明，这种结构不能改善光敏器件的灵敏度和探测率，而且由于大面积受光开路ｐ－ｎ结的存在，器件的灵敏度和探测率比相同面的单个ｐ－ｎ结小。     

非银核／乳化银壳多相组合光敏微晶体系

本文扼要介绍了近十几年开发出来的一种由非银核和卤化银壳组合微晶体所构成的新成像体系。这种新的成像体系具有一系列优越性，如：本征感光度高、光学增感效果好、遮盖力强和耗银量低等。因此将会有广阔的发展前景。