论述几种常见“冷桥”节点和处理方法

论述几种常见“冷桥”发生的位置和原因，提出了处理方法     

山东招平断裂带大磨曲家金矿床流体包裹体初步研究

The Damoqujia gold deposit, discovered recently and located in the north of Zhaoping fault zone, is a large altered rock type deposit. In this paper, we report the preliminary research results of the fluid inclusions and discuss its metallogenic implications. The homogenization temperatures of fluid inclusions fall into four ranges： 310 ～350℃, 230 ～270℃, 160 ～ 200℃ and 110 ～ 150℃ ; corresponding to the four stages of hydrothermal ore～forming processes ： coarse grain pyrite～milk white quartz stage （ I ）, smoky gray Au～bearing quartz～fine grain pyrite stage （ 11 ） , Au～bearing polymetallic sulfide～quartz stage （ III ） , and quartz～carbonate stage （ IV ）. Ore～forming fluid is with low salinity and low density, ranging from 1.4 WtNacl% to 13.6 WtN～cl% and from 0.48g/cm～ to 1.03g/cm～ respectively. The inclusions are dominated by H20 and CO2 in gaseous compositions, and Na ＋ and K ～ in positive ions, SO～～ and CI ～ in negative ions of liquid compositions. Au～S complex is the major form for transportation of gold. The pressure varied from 260MPa to 340MPa during the formation of CO2～bearing inclusions at the early mineralization; the fluids are rich in SO～～ and Na ＂. The pressure is 26 ～49 ～ 105 Pa during the formation of the aqueous salt inclusions in late mineralization, the inclusions are rich in CI～ （ F～ ）, Na～. ～$18Oqu～,zis 10. 64 ～ 12.68%0, and the corresponding ～518 OH2o and ～＆D is -5.44 ～ 6.47%0 and -95.52 ～ 106.48%o respectively. Based on the studies about compositions and hydrogen and oxygen isotopes of inclusions, it is evidenced that ore-forming fluid is magmatic hydrothermal fluid in early period, but affected by meteoric water in late.     

Fault diagnosis for analog circuits based on chaotic signal excitation

A fault diagnosis method for analog circuit is proposed in this paper. An all-purpose amplifier is taken as the typical circuit under test (CUT). The chaotic signal, which is generated by an improved Chua's circuit, is employed as the excitation signal of CUT. The algorithm for phase-space reconstruction of chaotic time series is a combination algorithm of multiple autocorrelation and Γ-test. The circuit state is estimated based on detecting the geometric change of Chua's attractor with a data-mining approach. For the purpose of information fusion, another eight features are extracted from the testing data to comprehensively determine the CUT states. A discussion is made for comparing the effectiveness of each feature according to the testing results.     

柴油发电机组故障录波器的研究

故障录波器一般应用于高压端的电力系统,由柴油发电机组构成的低压电力系统很少安装故障录波器,而柴油发电机组发生故障是很常见的。计算机软硬件技术的飞速发展,现场总线、数字信号处理器(DSP)、嵌入式计算机技术以及相关的一些软件技术为微机型故障录波装置的改善提供了必要条件。本文介绍了一种基于当前先进的计算机技术的高性能的机组故障录波装置的设计方案,该装置特别适合柴油发电机构成的低压电力系统。     

原发性痛经的中医药研究与治疗进展

收集近十余年原发性痛经中医药研究的文献资料,从病因病机、中药内服治疗、外治治疗、中成药治疗及导引、五行音乐对该病的治疗等方面进行了综述。     

热工DCS系统常见故障分析及处理措施

随着现场自动化程度的不断提高,火电机组对DCS系统的依赖性也越来越高.针对宏伟热电厂分散控制系统运行的实际情况,从DCS模件、硬件、软件、通讯网络、电源及现场事故案例等方面对DCS系统应用中影响机组安全稳定运行的故障现象和安全隐患进行分析和探讨,并对火电机组的DCS系统安全运行、日常维护和技术监督提出了应用技术水平的建议.     

业余足球运动员踝关节损伤的原因及治疗

通过查阅相关资料,并参与山西省太原市业余足球比赛若干场次,对在比赛中踝关节急性损伤的运动员进行各期治疗并进行对比,观察疗效。结果显示：业余足球运动员踝关节损伤后未处理的,痊愈率为17％;只进行前期处理的,痊愈率为50％;进行前期、中期、后期治疗的,痊愈率为100％。     

一例雏鸡球虫病的诊治

球虫是养殖生产中的常见病,在禽生产的各个阶段都能感染,给禽生产带来巨大损失。本文主要针对患有球虫疾病的雏鸡的临床症状,剖检特征进行报道,对发病原因进行分析,通过实验室诊断方法确诊,并进行临床诊疗。     

一例雏鸡球虫病的诊治

球虫是养殖生产中的常见病,在禽生产的各个阶段都能感染,给禽生产带来巨大损失。本文主要针对患有球虫疾病的雏鸡的临床症状,剖检特征进行报道,对发病原因进行分析,通过实验室诊断方法确诊,并进行临床诊疗。     

换土垫层软弱下卧层验算的一点体会

换填地基处理在浅基础设计中经常用到,但在地基换填后的软弱下卧层验算中的一些细节易使人疏忽,并导致计算结果出现一定的偏差。本文通过软弱下卧层验算工程实例,说明对一些细节的疏忽可能导致截然相反的判定结果。