台2線 68K 八斗子滾石災害致災成因初探

基隆市北寧路於2013 年8 月31 日下午發生高強度降雨事件 (最高達94.5 mm/hr)，並導致台2 線68K+000 處於當日16 時19 分左右發生落石擊毀小客車之意外。本次落石災害之發生區屬於大寮層中段塊狀砂岩，且為逆向坡之型態，現地調查結果顯示本區域具有兩組傾角近乎垂直之節理面，一組走向約略平行於海岸線，另一組走向則約略垂直於海岸線。致災成因可能與長期雨水入滲及風化作用有關，節理裂隙除因風化作用逐漸加大外，節理面上之含鐵質結核亦可能於風化後體積增加，進而加速節理開裂速度。本次落石災害之運動歷程大致可分為傾倒、滾動、墜落、彈跳、滾動等數段歷程，落石運動過程耗時約23 秒，移動路徑上之植被與風化土壤層可能為遲滯落石運動之主因。本文將說明此次災害之地質調查成果，並探討可能之破壞機制，以供未來類似災害之防治對策參考。Several rockfalls caused damages on Highway No.2 during an intensive rainfall on August 31, 2013, in Keelung. One of the rockfalls hit a car and the event was captured by a camera. This study analyzes the mechanism of the rockfall based on the video and field investigation. Two major joints which led to the hazard, one was parallel to the coast and the other was perpendicular to the coast. Both of them were almost vertical and cut the rock into several blocks. Weathering processes may have lead to the extension of joints during the heavy rainfall; the infiltration and the surface runoff took the weathered material away, making the rock unable and ultimately leading to the rockfall. The process of this hazard can be divided into topple, roll, fall, bounce and roll. The rockfall took about 23 seconds in total. This paper focuses on the results of field investigation and the mechanism of the rockfall is also discussed

Application and Development of Synchronous Fluorescence Spectrometry

［中文文摘］同步荧光技术是解决多组分荧光物质同时测定的良好手段之一。本文从恒波长同步荧光法、恒能量同步荧光法、可变角同步荧光法、恒基体同步荧光法以及它们与导数技术、低温技术、化学计量学方法的联用等方面对同步荧光技术领域出现的新技术及应用作一评述。［英文文摘］Synchronous fluorescence spectrometry is useful in simultaneous determination of multi-component fluorescent substances. Its application and development in recent years are reviewed. Synchronous fluorescence approaches, including constant-wavelength synchronous fluorescence, constant-energy synchronous fluorescence, variable-angle synchronous fluorescence, isopotential matrix synchronous fluorescence, and the combination with the derivative technique, stoichiometry and cryogenic technique are discussed.国家自然科学基金(No .2 9875 0 2 3);教育部优秀青年教师基金;福建省自然科学基金资助项目

基于ANSYS的履带起重机臂架参数化建模

臂架是履带起重机的主要受载构件,其强度直接影响起重机的安全性能。一台履带起重机具有多种臂架组合方式,使得有限元模型的建立非常繁琐。本文以ANSYS参数化设计语言(APDL)为基础,研究了履带起重机臂架系统参数化建模方法,设计了局部参数和总体参数两种参数;通过设置两种参数,实现了各种臂架组合,从而避免了不必要的重复性工作,极大地提高了效率

Progress on Fabrication, Modification and Applications of Titania Nanotube Arrays

新型纳米材料TiO2纳米管阵列具有独特的、高度有序的阵列结构和良好的力学性能、化学稳定性以及抗腐蚀性能。该材料以纯金属钛为基体,在含有少量氟离子的电解质溶液中通过电化学阳极氧化法制得。本文综述了近年来TiO2纳米管阵列在不同电解液体系中的制备工艺、形成机理、修饰改性及其在光催化降解污染物、太阳能电池、气敏传感材料、光解水制氢等领域应用的最新研究成果,并指出目前存在的问题,对今后的研究提出了展望。Titania nanotube arrays as a novel nano-material has unique highly ordered array structure, good mechanical and chemical stability, as well as excellent corrosion resistance. It has been fabricated by electrochemical anodization of pure Ti sheet in electrolytes containing small amounts of fluoric ions. This paper reviews the new research achievements of TiO2 nanotube arrays on the preparation processes, forming mechanism, modification and the applications in the photocatalytic degradation of pollutants, solar cells, gas sensor materials, photolysis water. The existing problems and further prospects in this field are also discussed.福建省自然科学基金资助项目(No.2007J0227

基于LabVIEW的远程PID温度控制系统

在冶金、化学、食品和农业等许多领域中,人们需要对各类加热炉、热处理炉、反应炉和锅炉中的温度进行监测与控制,尤其在一些化学材料的制备过程中,由于热处理工艺的需要,需要加热炉按某一设定规律升温、保温和降温,要求较高的

新诊断2型糖尿病患者血清炎症因子及外周血单个核细胞中核因子κB活性变化

【目的】探讨新诊断2型糖尿病患者血清炎症因子超敏-C反应蛋白（hs-CRP）、肿瘤坏死因子α（TNF-α）、白介素-6（IL-6）水平及外周血单个核细胞（PMNC）中NF-κB的活性变化。【方法】选择健康成人66例，新诊断2型糖尿病患者92例，分为正常对照组和2型糖尿病组，分析比较两组血清炎症因子及PMNC中NF-κB活性水平。血清hs-CRP、TNF-α、IL-6采用酶联免疫吸附法测定。免疫印迹分析检测PMNC中核因子KBp65（Set^536）的磷酸化水平，β-actin作为内参。【结果】2型糖尿病组患者的血清CRP、IL-6、INF-α水平均显著高于正常对照组（P〈0．001）；糖尿病组患者PMNC中NF-κB P65（Ser^536）磷酸化水平高于正常对照组（0．85±0．38vs0．47±0．25，P〈0．05）；在糖尿病组，log（CRP）与质量指数（BMI）、腰围、腰臀比、稳态模型法估计的胰岛素抵抗指数（HOMA-IR）、log（IL-6）、log（TNF-α）、糖基化血红蛋白（hemoglobin，Alc）呈正相关。【结论】结果提示2型糖尿病患者处于炎症状态，血清炎症因子水平及PMNC中NF-κB活性的升高可能与胰岛素抵抗和动脉粥样硬化的形成有关

血液透析室护士身心健康状况与应对方式的关系研究

目的通过对血液透析室护士身心健康状况与应对方式的调查研究,促进护士心理行为良性发展,提高其身心健康水平。方法采用一般资料调查表、康奈尔健康问卷、简易应对方式量表对269名血液透析室护士进行问卷调查。结果血液透析室护士最常见的躯体健康问题是眼和耳(24.67%),其次是消化系统(18.26%),最常见的心理健康问题是不适应(19.42%),身心健康阳性率为15.61%,心理健康阳性率为7.43%。年龄越大、工作年限越长,护士的心理健康水平越高,消极应对得分明显高于常模,消极应对得分与身心健康状况得分呈正相关(P<0.01)。结论血液透析室护士身心健康状况不容乐观,既要提高工作能力也要注重心理调节能力的培养,促进护士形成积极的心理反应模式,尤其是年轻护士,应学会和运用积极的应对策略,保持良好的身心健康状况。厦门市科技计划项目(3502Z20144041

Fabrication of Highly Ordered Titanium Dioxide Nanotube Array and Investigation of Its Photocatalytic Activity

采用电化学阳极氧化法在钛表面构筑了一种结构有序、微米级的TiO2纳米管阵列膜层.考察了制备电压、氧化时间、溶液搅拌等实验参数对TiO2纳米管阵列形貌和尺寸的影响.应用SEM和XRD对膜层的形貌和晶型进行了分析和表征,并通过TiO2纳米管阵列膜对甲基橙的光催化降解,研究了TiO2纳米管阵列膜层结构与光催化活性的关系.结果表明:阳极电压和溶液搅拌对制备TiO2纳米管阵列的结构起到关键的作用.控制20V电压制备的TiO2纳米管阵列膜,管长达2.6～3.3μm,经500℃热处理后具有最高的光催化活性,其光催化性能明显优于一般的TiO2纳米颗粒膜.A highly ordered titanium dioxide (TiO2) nanotube array film on titanium substrate was fabri- cated by using an electrochemical anodic oxidation method, and some preparation parameters of the TiO2 nanotube arrays were investigated as well. The SEM and XRD experiments were performed to characterize the morphology and crystalline phase of the TiO2 nanotube arrays. It was found that the morphology of the TiO2 nanotube arrays was greatly associated with the anodization voltage. The photocatalytic activity of the TiO2 nanotube array film was evaluated by the decolorization of methyl orange under the illumination of a high-pressure mercury lamp. The results showed that the TiO2 nanotube arrays prepared at 20 V and an- nealed at 500 ℃ exhibited the best photocatalytic activity to the degradation of methyl orange. And the photocatalytic activity of the TiO2 nanotube array film was much higher than that of the regular TiO2 nanoparticle film.国家自然科学基金(No.50571085);; 福建省科技项目(Nos.2005HZ01-3,2007H0031)资助项目