山东省水旱灾害防治研究

分析了山东省水旱灾害的历史和现状 ,对水灾和旱灾的趋势进行评估和预测 ,根据水利工程现状和存在的问题 ,提出了防治措施 ,并就抗御特大水旱灾害的紧急对策进行了研究探讨     

光固化3D打印及光敏树脂改性研究进展

为加深对光固化3D技术及光敏树脂的研究,简述了光固化3D技术的6种主流技术种类及最新的计算轴向光刻(CAL)打印技术,分析了各自的成型原理及优缺点,介绍了光敏树脂固化原理及最新的光敏树脂改性研究,着重分析了在增强增韧、膨胀单体、医用方面和功能化研究进展,同时对光固化3D打印的发展现状进行分析及对前景进行了展望。     

隧道病害研究现状与进展

根据国内外隧道病害研究现状,笔者对隧道病害研究方法和特点进行了分析与综述,结合隧道健康诊断与维修加固需要,指出了目前研究中存在的问题,在此基础上,提出了病害研究的总体思路.     

光固化快速成型中光敏树脂固化机理研究

合成了一种适于光固化快速成型的环氧丙烯酸光敏树脂,探讨了该光敏树脂的紫外光固化机理,用SEM表征了树脂体系固化后的微观结构,用红外光谱(FTIR)对树脂体系固化过程进行了分析。研究结果表明:光敏树脂经紫外光固化后,呈交联的、不规则体型网络结构;树脂在光固化过程中,光引发剂的含量在一定数值范围内与光敏树脂中C=C双键的转化率成正比。     

Synthetic and bio-hybrid nanoscale layers with tailored surface functionalities

We examine the prospective routes for the design of synthetic/biomacromolecular/inorganic film assemblies for photothermal cell based on biomimetic approach. We demonstrate examples of channel proteins immobilized onto surfaces of silicon single crystals modified with Langmuir–Blodgett and self-assembled monolayers. These proteins can be immobilized in intact, closed-pore conformation. Their state within photosensitive monolayers can be controlled by the photoisomerization reaction triggered by UV light.     

汶川5．12地震中都江堰市学校建筑的受害情况

2008年5月12日14时28分发生的汶川大地震（M8.0）,使中国四川省主要城市的很多建筑都受到了破坏。笔者一行在地震发生一个月以后，在四川省都江堰市的学校建筑为对象，进行了受损度的调查。作为日本的研究人员，调查的目的是在可能的范围内把握学校建筑的现状，从学术的观点出发，正确记录受灾情况。在本报告中，对都江堰市中心约80栋学校建筑的受灾情况进行了分析，并参照了中国方面的有关调查结果，后来对都江堰市受灾学校进行了修复状况调查     

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。     

Surface damages and tool wear mode in end milling of hastelloy‐C276 under dry and wet conditions

Hastelloy‐C276 is a nickel based superalloy that is widely used in chemical, petro‐chemical, environmental and nuclear industries due to its outstanding performance in a wide range of corrosive mediums. The superior properties of nickel based superalloys impair their machinability which increases the difficulty in obtaining a good surface finish. Because most of the components' failures are initiated from surface defects, several researchers have been concerned about surface integrity in machining aerospace superalloys particularly Inconel‐718. Due to the lack of studies done on machining corrosion‐resistant superalloys, this study aims to investigate surface damages and tool wear modes in milling Hastelloy‐C276 under dry and wet conditions. The absence of cooling and lubricating actions in dry machining resulted in the formation of craters, severe plastic deformation, voids, debris re‐deposition and materials drag. The breakage of the nucleated carbide phases resulted in the formation of nucleated cavities on the machined surface in both wet and dry machining. Adhesive tool wear was less in dry machining due to the formation of oxide layers on tool faces which suppressed the formation of built‐up edges due to the weak adhesion properties of oxide compounds which resulted in less surface roughness at v_c = 50 m/min. On the other hand, the higher temperature and friction in dry machining resulted in severer tool coating delamination.     

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。