A Kind of Software Based on GPRS to Monitor the Production Data of Oil Well

设计了一种基于gPrS(gEnErAl PACkET rAdIO SErVICE)的远程油井生产数据监测系统中的软件。采用MICrOSOfT SQl SErVEr2000及MICrOSOfT VISuAl STudIO 10.0编写了服务器软件以及基于ASP(ACTIVE SErVEr PAgES).nET的网站,使管理人员可以及时掌握每口油井的运行情况。通过gPrS实现了对采油井的实时监测,通过数据信号采集,进行远距离传输,对数据的分析处理,使用户在远端实时掌握油井的生产动态。该系统具有抗干扰性强、实时性强、成本低等优点,在实际使用中对实现数字化油田提供了一定的帮助。The paper designs a kind of monitoring systems based on GPRS to monitor the production data of oil well.The server software is designed by Microsoft SQL Server 2000 and Microsoft Visual Studio 10.0,and the website based on ASP( Active Server Pages).NET.User could know the running status of every oil well in time by monitoring based on GPRS.Users could understand the dynamic production datain real-time by remotely transferring the collected signals and analyzing data.The system has the advantages of strong anti-jamming ability,good real-time performance and low cost.In practice,this software will be useful to build digitized oilfield enterprises

The Research of Tongue Pressure Measurement on the Palate

采用全口义齿对上颌缺损进行修复后，舌肌的功能性运动对义齿基托的压力由上颚以及牙槽骨组织进行承担，适当的压力有利于牙槽骨正常发育，过大的压力则会加快牙槽骨的退化速度。上颚所受压力状况不仅对义齿的固定具有影响，更与患者口腔健康息息相关。因此，口腔修复学界对舌肌对上颚的压力测定都有着比较密切的关注。 针对以上问题，本文设计了一种舌肌对上颚的压力测量系统，论文主要开展了以下研究工作： 1.针对低压力（0.5N）、低变化量(0.02N)的压力测量，对弹性元件的受力结构进行分析，通过固定梁结构实现了机械形变的放大，解决了灵敏度低的问题，制作了基于康铜薄膜应变片的压力传感器；针对应变片的微小电阻信号变化...By using complete denture to restoration maxillary defect, the functional movement of tongue would bring supporting pressure to denture base, which borne by the palate and alveolar bone. A proper pressure would keep alveolar bone healthy, while put too much pressure on it would makes the bone absorption by oral mucosa faster. Pressure on the palate not only affects the position of denture, but als...学位：工学硕士院系专业：物理与机电工程学院_机械制造及其自动化学号：1992012115272

Design of the High-efficiency LED Driving Circuit Based on Automatic Gain Control(AGC)

设计了一款具有高效率的发光二级管(lEd)驱动芯片,采用自动增益控制(AgC)原理,通过内部的峰值电压检测和自动增益调节反馈控制机制,实现幅值稳定、相位相同的正弦包络电压输出,为原边电感电流控制提供比较阀值电压,实现脉宽调制(PWM)耦合的负载恒流输出,进而提高lEd发光效率.芯片的工作电压适合于宽电压范围,在交流85~265V范围内,输出表现了良好的恒流特性,实现高达95%以上的功率因数(Pf)值,lEd的工作效率达80%以上.A high-efficiency chip of LED driver is designed.It is got a constant current output of PWM modulate,through technology of the control mechanisms of internal peak voltage detection and the automatic gain adjustment,to achieve a stable amplitude and the same phase sinusoidal envelope voltage output,which supply the comparison threshold voltage for primary side inductor current control by principle of the automatic gain control(AGC).The operating voltage of the chip is suitable for wide voltage range applications,the output performance of the constant current characteristic has a PF value up to 95%,LED work efficiency more than 80%,within the range of 85Vto 265V

脱层材料与槽接式挫屈束制支撑的性能研究

挫屈束制支撑耐震性能优劣与否与脱层材料性能有密切关系,首先提出了一种估算脱层不完全因子的方法,利用4组分别使用不同脱层材料的挫屈束制支撑进行构件试验;研究结果表明以黏性橡胶作为脱层材料具有可靠性、经济性与优良的施工性。特别介绍了地震工程研究中心近期所研发的槽接式挫屈束制支撑,并通过3组实尺寸构件试验验证了其耐震性能;测试构件包含一组长度为12.5m,最大抗压强度超过16800kN,核心消能段应变量达3.5%的构件。试验结果表明,新研发的槽接式挫屈束制支撑经济效益极高,迟滞消能行为良好稳定,具有优良的耐震性能,各组试体于试验停止前所累积的总非线性变形量皆超过400倍斜撑屈曲位移量;研究亦显示,非线性结构分析软件PISA3D可准确预测其受力与变形反应

銀－奈米碳管－全氟磺酸聚合物薄膜及以其修飾之電極

本發明提出一種銀－奈米碳管－全氟磺酸聚合物薄膜，包括一奈米碳管－全氟磺酸聚合物薄膜及沉積於該奈米碳管－全氟磺酸聚合物薄膜上的銀奈米粒子；其中該奈米碳管－全氟磺酸聚合物薄膜係奈米碳管與全氟磺酸聚合物以重量比1/10－1/200混合形成之薄膜，銀沉積電荷為10mC/cm2－15000mC/cm2。本發明亦提出一種以銀－奈米碳管－全氟磺酸聚合物薄膜修飾之電極，包括一電極載體及形成於該電極載體表面之銀－奈米碳管－全氟磺酸聚合物薄膜。本發明之電極可作為表面增強拉曼散射活性基材，用於偵測化學或生物分子。本發明更提出以電化學還原法製造上述之薄膜或電極，具有簡單及經濟等優點