Based on an analysis of dynamic conditions for migration and precipitation of gold grains in water system and their diffusion in soil , this paper has advanced a discriminant formula for surfacce ore potential of gold anomalies from 1 : 50000 stream sediment survey , recounted methods for estimating the highest gold grade ores within the anomalies , calculated the discriminant indices for qinba area , and summed up index characteristics of ore - induced gold anomalies in 1 : 10000 soil survey , estimation formulae for orebody location as well as coefficients and constants of slope angles of various orders and grades 摘要在分析金粒在水系中运移、落淤和在土壤中扩散动力条件的基础上，本文建立了五万分之一水系沉积物测量金异常地表含矿性的判别公式，阐述了推算异常内矿石最高金品位的方法并计算了秦巴地区的判别指数；总结出万分之一土壤测量矿致金异常的标志特徵、矿体定位的估算公式及各级次地形坡度角的系数和常数。
Finally , the paper gives an example of the system used in the automatically spinning control system in the machine . many essential parameters were tested , which includes communication speed , the percentage of errorness or lost packet , and the response time etc . all prove that the system has very good performance and great value in application 测试表明系统具有极好的性能，能够在100米左右的范围内挂接100个以上的控制节点并以500kbps的速率通信，系统响应时间小于lins ，出错率和丢包率均低于万分之一，囚此该系统在工业自动化中具有很大的应用价值。
High resolution digital smps becomes the hotspot in the power supply field . more and more attention has beed payed to how to realize high resolution digital smps , and it has already taken a long step develop . improving the resolution of digital smps by new techniques becomes a forever topic . under the learning of the status and develping trend of smps , considering the practical requirement of task , a control system of smps implemented by microcontroller with high resolution , high speed , high integration is carried out . by combining the embedded system and power electronics , it is discussed that a high resolution smps ’ s output voltage with 0 . 01 % resolution pwm wave output , in the basis of microcontroller , and the pwm wave double modulation arithmetic 不断用新技术手段实现数字开关电源的高精度是一个永恒的话题。经过了解国内外开关电源的发展现状和发展趋势,结合实际课题的要求,提出了使用高精度、高速度、高集成度的微控制器组成开关电源的控制系统。讨论了将嵌入式系统与电力电子结合,在微控制器硬件基础上通过软件pwm波双调制算法输出高精度pwm波,实现开关电源输出电压的万分之一精度的方法。
Finally , many essential parameters were tested , which include communication speed , the percentage of error , and the response time etc . all prove that the system has very good performance and great value in application . the system can communicate at 500kbps with 100 device in 100m , and the response time is less than 0 . 5ms , the percentage of error is less than 1 测试表明系统具有极好的性能，能够在100米左右的范围内挂接100个以上的控制节点并以500kbps的速率通信，系统响应时间小于0 . 5ms ，出错率低于万分之一，因此该系统在工业控制自动化中具有广泛的应用价值。
Direct current , peak to peak amplitude of the measured quantity is implemented . the whole system has the integrated functions of data process , communicate , display , etc . during designing the hardware , in order to improve the whole system ’ s interference immunity , the advantages of small outline ( so ) chip is fully considered by proper redistribution , the analog parts and digital parts are separated by optoelectronic isolator to reduce the interaction 本课题根据黑龙江省计量研究院的要求,依据最新测量理论设计了直流测量模块,其性能已经达到了万分之一的精度,实现了一个集直流电压、直流电流及峰峰值测量于一体,具有数据处理、通讯、显示等功能的单片机测试系统。
If any principal of contractor temporarily leave construction worksite due to special status , he or she shall be agreed in written by client or arrange another principal to instruct on worksite , otherwise one day delayed , contractor will bear the penal sum of 1 / 10000 of total project price for breaking the contract 如承包人的任何一个负责人因特殊情况需暂离本工程施工所在地，需征得发包人书面同意并由另一个负责人负责在现场指挥施工，否则每延续一天，承包人承担本工程合同总价款万分之一的违约金。
