The Study and Implementation of the Synchronization for Remote Database of Oracle Based on Log Paser

进入九十年代以来，随着信息化的深入，社会各项工作已越来越离不开计算机网络与数据库系统。由于计算机系统分布在不同地域，利用这些计算机系统的协同工作已经成为计算机领域中的一项重要技术，分布式数据库就是其中之一。如何保证各个系统中的服务器不间断地工作，并保证关键数据的同步已成为分布式数据库运用的核心问题。因此必须建立一套可靠的远程数据库同步方案。传统的数据同步方案都不能针对数据库的特定时间段或特定局部表区域进行局部同步，本文提出了一种基于oracle的日志解析的远程数据库同步的方法，能够很好的解决局部同步的问题。本文主要贡献总结如下： 1. 综述了远程数据库同步的各种方法及其优劣 本文综述了远程...With the further informatization after 1990s,various social work show more and more dependence on the network and database system.The computer system being distributed in different area,integrating all the computer system has become important technology in computer science fields.The distributed database system emerges at the time required.The core of the distributed database system lies in the gu...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X200623004

Study of mercury bioaccumulation and intake pathway of oyster (Crassostrea sp.) from post-desulfurization waste seawater discharged from a coal fired power plant

汞(Hg)是对人类最具毒害的元素之一。在环境Hg污染中，以人为源为主。近年来，为削减SO2对大气的污染，许多沿海地区的燃煤火力发电厂采用烟气海水脱硫(SFGD)工艺，但在SO2被海水吸收排海的同时，燃煤中大量的Hg也被吸收、排放到海域中。这部分Hg可被海洋生物直接利用、累积，并沿食物链逐级传递、放大，最终危害人类健康。因此，作为海洋环境中新的Hg污染源，SFGD燃煤电厂脱硫海水中的Hg及其对海洋生物的影响值得关注。 本论文以厦门SY电厂附近海域为研究区域，配备SFGD装置的燃煤电厂排放的脱硫海水为研究介质，巨牡蛎为指示生物，系统性地研究脱硫海水中Hg在巨牡蛎体内的累积及其毒性效应、脱硫海水的...Mercury (Hg) is one of the most toxic elements to human body. Anthropogenic activities are main sources for Hg pollution in the environment. In recent years, seawater flue gas desulfurization (SFGD) technique has been applied by many coal fired power plants in coastal areas to reduce SO2 pollution in atmosphere. However, while SO2 is neutralized with the seawater and discharged from the power plan...学位：理学博士院系专业：海洋与环境学院环境科学与工程系_环境科学学号：2262008015013

以课堂教学变革为导向的高校智慧教室建设

信息技术的快速发展,为智慧教室建设与课堂教学改革提供了可能与机会。近年来,高校积极对智慧教室开展研究与实践,并形成了各式各样的建设案例,同时也存在误区。厦门大学结合智慧教室建设与应用的经验,提出从无线网络环境、交互式电子白板、课堂任意分组、互动教学系统、多终端支持、智能管理、实时应答系统、课堂大数据分析等八个维度实现智慧教室核心功能,通过建设智慧教室,倒逼课堂革命

面瘫的古代针灸疗法特点分析

面瘫是以口眼歪斜为主要症状的一种病症。祖国医学认为本症是由于风寒外邪入侵面部，或由于内热亢盛筋脉不收所致。现代医学认为，本病可分为两类，其中周围性面瘫是由于茎乳孔内组织发生炎症水肿，压迫面神经所致；而中枢性面瘫则是由于脑部的炎症、肿瘤、脑血管疾病等所..

WM-10型水汞测量装置-原子荧光光谱仪联用测定海水中痕量总汞

采用WM-10型水汞测量装置与原子荧光光谱仪联用测定海水中的痕量总汞,海水中总汞的检测限为3.4 ng/l、线性范围为0.005~0.100μg/l(n=5,r=0.9995);无汞海水基底加0.0100μg/l汞标的水样,测定平均值为0.0105μg/l,相对标准偏差为11.8%(n=12);无汞海水基底加标平均回收率为102.8%。采用该法与EPA 1631方法分别测定了12个实际海水样,两种方法结果的相对百分偏差为0.3%~17.6%。方法可应用于海水中痕量总汞的测定。国家自然科学基金(NSF20777063);中国博士后科学基金(20080440731)项目资

Design of air-condition intelligence electric-economized device

空调智能节电器是针对空调、冰柜等家用高能耗制冷设备而开发的新型节电器产品。它通过优化压缩机运行曲线,实现对空调、冰柜的节电控制。设计的空调智能节电器硬件由89S52处理器、瞬态型SC2272-M4遥控解码芯片、开关电源等部分组成;软件由初始化模块、键码采集、按键处理、参数保存、显示模块、压缩机控制模块等部分构成。该节电器可遥控设定节电率;并通过减少空调压缩机的启停次数,延长空调机的使用寿命;同时,采用小体积、低功耗的开关电源有效降低节电器自身耗电。该节电器经国家家用电器质量监督检验中心测试,节电率可达到15%-45%,市场应用前景广阔。The air-condition intelligence electric-economized device is a new type of energy saving product which is developed for high-energy consumed refrigeration equipments,such as air-conditioner device and icebox,in household. This device saves the energy through optimizing the compressor’s operating curve.Its hardware is made up of 89S52 processor,SC2272-M4 telecontrol decoding chip,switching power and so on,while the software is made up of initialization module,key code collection,key-press processing,parameters preservation,display module,and compressor control module.This device can be set the electricity-economized rate remotely.It can extend the life span of the air-condition by reducing the start-stop times of the compressors,and can effectively reduce the energy consuming of itself by using small and low-energy consumed switching power.Tested by the national household appliances’ quality supervision and inspection center,this device’s electricity-economized rate is 15%-45%,so it has a bright future of market application.福建省科技计划项目资助(No.2004J020)

基于盘网双待的公共计算机实验室系统维护方案

计算机系统的维护是高校公共计算机实验室面临的一大难题。基于单机或网络的多种系统维护方法存在缺陷,盘网双待技术实现了服务器中的系统镜像与本机缓存的系统自动同步。系统的启动可以根据故障智能识别与切换,在单机硬盘出现故障时系统从网络启动,网络出现故障时从本地硬盘启动,是一种高可用性和高可靠性的系统解决方案,可以作为公共计算机实验室系统维护较为有效的解决方法

Bioaccumulation of Mercury in Crassostrea sp.Exposed to Waste Seawater Discharged from a Coal-fired Power Plant Equipped with a Seawater Flue-gas Desulfuriaztion System

研究了巨牡蛎(CrASSOSTrEA SP.)对配备烟气海水脱硫装置电厂的脱硫海水中汞(Hg)的生物累积.在电厂的排水口(实验点)和参考点分别吊养牡蛎群,定期采集样品,测定海水中的Hg浓度和牡蛎的Hg含量(均以干重计).实验点和参考点海水中的总汞(THg)浓度分别为(120.6±55.5)ng.l-1(n=5)和(2.7±1.0)ng.l-1(n=5),甲基汞(MEHg)的浓度分别为(0.30±0.44)ng.l-1(n=5)和(0.28±0.31)ng.l-1(n=5).在7 d内,实验点牡蛎体内THg含量从(138.3±14.3)ng.g-1(n=6)迅速增加到(3 012±289)ng.g-1(n=6),且在后来的34 d内,一直保持在2 935~4 490 ng.g-1的高含量水平;而参考点牡蛎对THg未见明显累积,为60.7~137.5 ng.g-1之间.暴露期间实验点牡蛎体内MEHg的含量未发生显著变化,保持在55.4~73.1 ng.g-1之间.而参考点牡蛎MEHg含量呈略微下降的趋势,但变化幅度不大,在15.6~55.6 ng.g-1之间.本研究表明,燃煤电厂排放的脱硫海水中的THg可被牡蛎迅速累积至很高的含量水平,有不容忽视的潜在风险.脱硫海水中MEHg的浓度很低,其在牡蛎体内未见明显累积;在本研究的条件下,未观测到牡蛎自身合成MEHg或将无机汞转化为MEHg.A field experiment was conducted to study mercury(Hg) bioaccumulation in Crassostrea sp.exposed to waste seawater discharged from a coal-fired power plant equipped with a flue gas desulfurization system.Oysters were cultured in the discharge outlet of the power plant(studying site) and a control site,respectively.The total Hg(THg) concentrations(all counted as dry weight) of seawater in the studying and control sites were determined as(120.6±55.5)ng·L-1(n=5) and(2.7±1.0)ng·L-1(n=5),respectively,while methyl Hg(MeHg) concentrations were(0.30±0.44)ng·L-1(n=5) and(0.28±0.31)ng·L-1(n=5),respectively.The THg in oyster at the studying site increased dramatically from(138.3±14.3)ng·g-1(n=6) to(3 012±289)ng·g-1(n=6) within 7 d,and remained at high levels of 2 935-4 490 ng·g-1 for the next 34 d.In contrast,the THg in oyster at the control site showed no significant change,and kept at low levels of 60.7-137.5 ng·g-1.After 41 d exposure,the MeHg in oyster at the studying site had no significant change,ranging from 55.4 ng·g-1 to 73.1 ng·g-1,and the content at the control site showed a slight decrease,ranging from 15.6 to 55.6 ng·g-1.The study showed that THg in the waste seawater discharged at the coal-fired power plant could be quickly bioaccumulated by oyster to a great extent,the potential risk can thus not be ignored.MeHg concentration in the waste seawater was quite low,and no obvious bioaccumulation was found in oyster.Under the study conditions,no self-synthesis of MeHg or transformation of inorganic Hg into MeHg was found.国家自然科学基金项目(20777063;40976070

Effects of Ciji Hua'ai Baosheng Decoction on peripheral blood cells and spleen hematopoietic growth factors of tumor chemotherapy model mice with H22 hepatoma carcinoma cells

目的:研究慈济化癌保生汤(CHBT)对H22肝癌化疗小鼠外周血细胞以及脾脏造血生长因子红细胞生成素(EPO)、粒细胞-巨噬细胞集落刺激因子(GM-CSF)以及造血功能的作用。方法:将肝癌H22细胞悬液(2×107/m L)接种于Kunming种小鼠右前腋皮下,约7d后,全部形成移植瘤,环磷酰胺(CTX)按200mg/kg(0.2m L/10g)腹腔注射,建立H22肝癌小鼠化疗模型。随机分为模型组,CTX(0.033g/kg)组,CHBT高、中、低剂量(117、58.5、29.25g/kg)组,连续给药10d,采用全自动血细胞分析仪检测外周血红细胞、白细胞、血小板和血红蛋白,运用酶联免疫吸附测定法检测脾组织EPO和GM-CSF含量。结果:与模型组和CTX组比较,CHBT高、中、低剂量组红细胞、白细胞、血小板数量明显升高(P<0.05,P<0.01);CHBT高、中剂量组血红蛋白升高(P<0.05,P<0.01);CHBT各剂量组EPO、GM-CSF含量升高(P<0.01,P<0.05)。结论:慈济化癌保生汤能促进化疗后EPO和GM-CSF的生成并增强活性,刺激血细胞的产生,维持外周血象稳定性。Objective: To investigate the effects of Ciji Hua'ai Baosheng Decoction(CHBT) on peripheral blood cells, spleen hematopoietic growth factors such as erythropoietin(EPO) and granulocyte-macrophage colony stimulating factor(GM-CSF), and blood-producing function of tumor chemotherapy model mice with H22 hepatoma carcinoma cells. Methods: The suspension of H22 hepatoma carcinoma cells(2×107/m L) were subcutaneously injected into the right anterior armpit of Kunming mice. After 7 days, all mice formed the transplanted tumors, and then the cytoxan(CTX) at the dosage of 200mg/kg were intraperitoneally injected into the mice to establish the tumor chemotherapy model. The mice were randomly divided into model group, CTX(0.033g/kg) group, CHBT high, middle and low dose(117, 58.5, 29.25g/kg) groups. The experiment groups were treated for 10 days. The levels of red blood cells, white blood cells, platelet and hemoglobin in peripheral blood were detected by automatic blood cell analyzer. The contents of EPO and GM-CSF in spleen tissue were assayed by enzyme-linked immunosorbent assay. Results: Compared with model group and CTX group, the levels of red blood cells, white blood cells and platelet in high, middle and low dose CHBT groups were increased significantly(P<0.05, P<0.01), the levels of hemoglobin in CHBT high and middle dose groups were increased(P<0.05, P<0.01), the contents of EPO and GM-CSF in CHBT high, middle and low dose groups were increased significantly(P<0.05, P<0.01). Conclusion: The CHBT in given concentration could promote the production of EPO and GM-CSF after tumor chemotherapy and stimulate the hemocytogenesis to maintain the stability of peripheral haemogram, which may be the possible mechanism of CHBT ameliorating the haemogram of cancer after chemotherapy.国家自然科学青年基金项目(No.81202659);; 厦门市重大科技计划项目(No.3502Z20100006);; 福建省自然科学基金项目(No.2014J01373);; 厦门市科技计划项目(No.3502Z20153027)~

Application of Oxalyl Dihydrazide in the Combustion Synthesis of LaAlO_3

通过金属硝酸盐和草酸二酰肼氧化还原的混合物燃烧方法合成了钙钛矿型lAAlO3粉末。混合物在350℃着火燃烧后产物为非晶态,进一步在500℃和600℃焙烧后得到单相结晶钙钛矿相。混合物的dSC分析得知,混合物的着火起始温度为340℃。这种软化学方法的应用使钙钛矿型lAAlO3的合成温度达到了迄今为止的最低温度。The LaAlO 3 Fine powder with perovskite structure has been synthesized by the combustion of redox mixture containing corresponding stoichiometric amount of metal nitrate, La(NO 3) 3·6H 2O and Al(NO 3) 3·9H 2O,and oxalyl dihydrazide, C 2H 6N 4O 2 at 350℃.The powder combustion product was amorphous.It could yields crystalline single phase perovskite aFter being calcined at 500℃ and 600℃.DSC analysis on the mixture shows that the process of combustion starts at 340℃.The application of such socalled soft chemistry method has reached the so Far lowest synthetic temperature of the perovskite type LaAlO 3.福建省自然科学基金;国家教委回国科研基