Data-driven Health Status Prediction of the Hydraulic Turbine Governing System

水轮机调速系统是水轮发电机组的关键控制系统。运用故障树与专家系统相结合的方法对调速系统可能发生的故障进行诊断,并基于历史数据,挖掘与故障相关的可能因素,对专家系统无法解决的故障进行分析,构建了基于数据驱动的水轮机调速系统健康状态预测系统。The hydraulic turbine governing system is the key control system of the hydro-turbine generator unit. In this paper,the fault tree method and the expert system are combined to predict the potential faults of the governing system.Based on the historical data,a data-driven health status prediction system is developed for the hydraulic turbine governing system to detect the possible factors of the faults and analyze the unsolved faults

Design and Implementation of Intelligent Home Control System Based on Android and Arduino

作为时下最炙手可热的移动应用端操作系统,Android以其显著的开放性、便于开发的灵活性、能够与Google应用的无缝对接性及丰富的第三方软硬件; 资源等成为智能应用系统不可或缺的组成部分;Arduino单片机系统以其开源的电子原型平台、灵活便捷的设计和丰富的传感器资源等被广泛应用。其与Ja; va和C语言相类似的基于; Wiring/Processing的语言开发环境更是受到越来越多的电子爱好者和开发者的青睐。本文以移动手机安卓系统为无线控制终端,结合Ardui; no单片机系统,设计并实验仿真了一款基于Android与Arduino的智能家居控制系统,以控制; LED灯示例,通过网络http传输控制指令到Arduino单片机系统,Arduino根据所接收到的指令,控制不同的家居电器完成所要求的工作任务。; 仿真实验表明,文章所设计方法行之有效,可以灵活的运用到日常家居电器设备,提供了一种智能家居系统设计的新思路,具有易实现,应用广的特点。As one of the most sought-after mobile application terminal operating; system, Android has become an indispensable part of the intelligent; application system, because it has the features of definite openness,; flexibility for development, perfect connection with Google applications; and abundant third party software and hardware resources and so on.; Arduino MCU system is widely used in society because of its; characteristics of open source electronic prototype platform, flexible; and convenient design, rich sensor resources, etc. Moreover, its classes; Java and C language based on Wiring/Processing development environment; are becoming more and more popular among the electronics enthusiasts and; developers. Taking the mobile phone Android system as wireless control; terminal, and combining Arduino MCU system, an intelligent home control; system based on Android and Arduino is designed and implemented in this; paper. By controlling LED lamp samples, with the network HTTP; transmission control instructions sending to the Arduino MCU system, and; according to the received instructions, Arduino can control different; household electrical appliances to complete the required tasks.; Experiments show that the methods designed in this paper can be flexibly; applied to daily household appliances, such as, home appliance control,; security equipment, etc. This paper provides a new idea for the design; of intelligent home system, which is easy to implement and widely used.2015年度"福建省高校杰出青年科研人才培育计划"项目; 2015年福建省高等学校创新创业教育改革项目;; 2016年本科高校重大教育教学改革研究项目; 2016年省级互联网实验教学示范中心项目; 2016年福建省高等学校服务产业特色专业建设项

PREPARATION AND CHARACTERIZATION of FeMo CofACTORS CONTAINING SINGLE AND DOUBLE Mo FROM NITROGENASE

固氮酶单、双钼铁钼辅基的制备与n-甲基甲酰胺碱度有关.质子激发X射线发射光谱和电感耦合等离子体发射光谱分析技术测定单、双钼铁钼辅基的钼铁流元素组成比值均为1∶6∶6.在紫外可见光谱区内，单、双钼铁钼辅基均无特征吸收峰，不含高柠檬酸盐。Preparation of FeMo cofactors containing single and double Mo was related with basicity of N-methylFormamide.The mininal elemental composition of FeMo cofactor containing single and double Mo was Found to be Mo: 6Fe: 6S by using inductively coupled plasma and proton induced X-ray emission analytical technique.F6Mo cofsctors containing single and double Mo showed Featureless absorbence peak in the ultraviolet and visible spectral range and did not contain homocitrate.国家自然科学基金;国家教委回国留学人员基

武夷山市洲庵遗址考古发掘简报

洲庵遗址位于福建省城村汉城遗址西南2公里处,2013年被调查发现。随后对其进行抢救性考古发掘,共发现汉代房址1处,宋代灰坑6个、窑炉3座,出土一批汉代、宋代建筑材料、陶瓷器标本,这为研究..

细菌铁蛋白氧化还原特性及电极活性的研究

棕色固氮菌细菌铁蛋白能直接快速地从金属铂电极上得到电子或提供电子给铂电极。经－６００ｍＶ（相对于ＮＨＥ）还原电位处理后，还原态细菌铁蛋白在可见光谱区中（３８０－５８０ｎｍ）所呈现的整体吸收光谱强度明显高于氧化态细菌铁蛋白的吸收光谱强度。经氯化钴处理后的细菌铁蛋白表现出较弱的电极活性及释放铁的速率明显下降。此外，细菌铁蛋白在体外模拟棕色固氮菌整体细胞内的微量氧环境体系中仍有氢还原现象，因而推测细菌铁蛋白在该菌体内也能进行吸氢反应。细菌铁蛋白是一种类似有吸氢氢酶功能的蛋白

hrHPV DNA载量 分型和E6蛋白对宫颈癌前病变进展的预测作用

目的:探讨预测高危型人乳头瘤病毒(high risk human papillomavirus,hrHPV)阳性和宫颈上皮内瘤样病变1级(cervical in-traepithelial neoplasia grade 1,CIN1)妇女进展的生物学标志物。方法:2010年10月至2012年8月在山西省、河南省和江西省招募7 543名妇女,采用hrHPV DNA检测和E6蛋白检测(Onco E6)等方法进行宫颈癌筛查,任一结果阳性者转诊阴道镜并取活检,于1年后随访。纳入基线hrHPV阳性或病理诊断CIN1者。结果:共纳入794例满足条件妇女,1年后88例妇女病理级别发生进展。基线hrHPV DNA中高载量者进展的风险是低载量者的2.9倍(95%CI为1.8~4.8),hrHPV16/18/45、E6蛋白阳性者进展的风险分别是阴性者的2.4倍(95%CI为1.5~3.9)、2.9倍(95%CI为1.5~5.9),其进展至宫颈上皮内瘤样病变2级及以上(cervical intraepi-thelial neoplasia grade 2 or worse,CIN2+)的绝对风险分别为4.9%(95%CI为3.2~7.4)、9.0%(95%CI为5.5~14.3)、18.8%(95%CI为10.2~31.9)。hrHPV16/18/45中高载量且E6蛋白(Onco E6)阳性妇女进展的绝对风险高达32.4%(11/34)。结论:hrHPV DNA中高载量、hrHPV16/18/45分型以及E6蛋白(Onco E6)可作为妇女hrHPV阳性和CIN1进展的生物学标志物,特别是hrHPV中高载量且E6蛋白(Onco E6)阳性妇女,临床应给予密切随访。中国医学科学院医学与健康科技创新工程重大协同创新项目(编号:2016-I2M-1-019)资助~

猪脾铁蛋白电子隧道特性及释放铁途径的研究

维生素Ｃ和连二亚硫酸钠混合后只能加速猪脾铁蛋白释放铁的速率，并不能使铁蛋白释放铁的动力学途径由复杂转化为简单．而单独维生素Ｃ却能利用蛋白壳上的电子隧道传递电子，迫使铁蛋白以二分之一的反应级数方式释放整体铁核的铁并起着抗磷酸盐阻遏释放铁速率的作用，简化释放铁的途径．对维生素Ｃ参与铁蛋白释放铁的机理进行了讨论

马脾铁蛋白释放铁的反应级数和速率相数的转换

采用差示法研究铁蛋白释放铁的动力学规律和反应级数的转换。结果表明：马脾铁蛋白释放铁的速率及相数与还原剂Na2S2O4。浓度及铁还原速率无关，与该蛋白蛋白壳的调节速率有关。在pH50～6．0范围内，马脾铁蛋白以三相不同速率方式释放占原铁核总铁量80％的铁。但在pH9．0介质中，OH-不仅能参与铁蛋白铁核组成，减缓释放铁的速率，而且使原混合级反应转换为一级反应，从而使铁蛋白释放铁的动力学过程由复杂转化为简单

Analysis on the epidemiological characteristics of the sporadic cases with hepatitis E infection in the rural area in Jiangsu province

目的了解江苏省农村散发性戊型肝炎的流行病学特征。方法通过建立覆盖市、镇、村三级医疗卫生服务机构的疑似肝炎主动监测网络,系统全面地监测戊型肝炎病例的发病情况。结果主动监测网络的敏感性明显高于网络报告系统,能更加准确、全面地掌握戊肝的发病规律。结果显示戊型肝炎病例占疑似急性肝炎病例的26.7%,男性戊肝发病率高于女性(P<0.01);发病随着年龄增长而上升,多见35岁以上人群;全年均有发病,冬春季节较高;戊型肝炎病毒株HEV1、4型并存,但以HEV4型为主(92.5%)。结论疑似肝炎主动监测系统数据显示目前戊肝发病率有被低估的风险。To understand the epidemiological characteristics of the sporadic cases with hepatitis E infection in the rural area of Jiangsu province,the prevalence of hepatitis E infection was surveyed systemically and completely through the initiatively monitoring system for the suspected cases of hepatitis E covering the city,town and village levels of medical and health service organizations.It was found that the initiatively monitoring system for suspected hepatitis E cases reflected the incidence of hepatitis E more accurately and comprehensively and was proved to be more sensitive than the network reporting system.The cases with hepatitis E accounted to 26.7% of the suspected cases with acute hepatitis and they were more frequent in male than in female.The incidence of hepatitis E increased with advance of age and most of cases occurred with age over 35.Estimated incidence was stable on the whole year,but rose up in winter and spring.The HEV type 1 and type 4 co-existed,but the HEV type 4 was proved to be the main type(92.5%).From the above observations,it seems that the initiatively monitoring system for the suspected cases of hepatitis E may be under-estimated for the risk of the hepatitis E infection in rural area of Jiangsu province.国家高技术研究发展计划(863计划)(2006AA02A209)资

棕色固氮菌细菌铁蛋白释放铁的动力学方程和性质

棕色固氮菌细菌铁蛋白铁核中的磷铁组成存在非均匀性。细菌铁蛋白释放铁的动力学特性表现出复杂性。通过动力学曲线分析，提出蛋白壳自身调节能力起着限制释放铁速率关键步骤的观点，建立分析铁蛋白释放铁的动力学特性方程并用它较合理地阐明铁蛋白释放铁的动力学规律及储存铁的途径。用分光光度法和动力学方程研究细菌铁蛋白释放铁的全过程，其结果表明该蛋白以一级反应方式释放铁核表层的铁和以零级反应方式释放铁核内层的铁。外加磷酸盐能强烈地抑制释放铁的速率，引起释放铁的反应级数的转化，迫使铁蛋白以一级反应的方式释放铁核中的大多数铁。国家教委回国留学人员基金;福建省自然科学基