|
Abstract: Backing weld procedure technique of all-position narrow gap and thick-walled pipe welding is developed about all-position single-pass welding section analysis,wire feeding behavior , weld arc length , welding current analysis,procedure and joint
|
|
|
文摘:从单焊道全位置区段、送丝行为、焊接弧长(电压)、电流行为分析、工艺试验和接头检验等几方面介绍管道全位置打底焊工艺特点，其研究成果对全位置焊接机的制造和调试具有普遍指导意义。 |
|
Abstract: Base on analysis the characteristics and develop ment state of safety management information system (MIS), this paper discuss the content include in mine safety MIS： safety information, safety analysis,accide n t prediction, safety evaluation.
|
|
|
文摘:在分析安全管理信息系统的特点和发展状况的基础上，论述了矿山安全管理信息系统所包括的内容：安全信息，系统安全分析，事故预测，安全评价。 |
|
Abstract: Based on 1∶1,000,000 generalized aeromagnetic survey in centraland western Qinghai-Tibet plateau, this paper has made interpretation and investigation on such geological and geophysical problems related to the plateau area as the Yarlung Zangbo
|
|
|
文摘:根据青藏高原中西部1∶100万航磁概查结果，对雅鲁藏布江缝合带、塔里木盆地南部边界、高原内部几条规模较大断裂和区域性负磁异常带等高原地区几个有关的地质和地球物理问题进行了解释和探讨，获得了与以往不同的认识，这对青藏高原的深入研究具有重要意义。 |
|
Abstract: Based on 1∶200000 aeromagnetic survey data performed in 1998, and referred to materials of geolo-gic and geochemical prospecting of the working area, this paper discusses the relationship between the characte-ristics of magnetic field, magmatic
|
|
|
文摘:本文以1998年1∶20万航空磁测资料为基础，参考地质和化探资料，对工作区磁场特征、岩浆岩、断裂构造与矿产分布的关系进行探讨，研究地质成矿环境，建立寻找热液型和火山-沉积型的铜、铅、锌、金、铁、锰矿找矿标志，对本区找矿远景进行了预测。 |
|
Abstract: Based on 1∶50 000 high-precision aeromagnetic data of 1996 and consulting other geophysical and geological data,this paper has analysed the framework of basement structure and fault structure and,in particular,probed into the relationships of ae
|
|
|
文摘:以1996年1∶5万高精度航空磁测资料为基础，参考其它地球物理及地质资料，对山东黄河口地区基底构造、断裂构造格架进行了分析，尤其是探讨了航磁场特征、基底构造、断裂构造与地下热水分布的关系，在此基础上对本区的地热水远景进行了初步的分析。 |
|
Abstract: Based on Equivalent Liquid Surface Descending Method(ELSDM)and Isolated Melting Zone Method,a multi-hot-spot and simultaneous shrinkage-feeding method was established to predict the shrinkage cavities of steel casting during solidification simul
|
|
|
文摘:本文在等效液面收缩法和孤立域法基础上建立了预测铸钢件缩孔的新方法——多热节和即缩即补方法，该法实现了对模拟铸件各热节的内部动态瞬时补缩，并采用该方法对两个实际铸钢件进行了缩孔分析。 |
|
Abstract: Based on Genetic Programming(GP ),a new method of formula discovery from data is introduced.The details of the method description,the design and development of the key data structure of this method are presented.Finally,two representative simula
|
|
|
文摘:本文通过对遗传建模和公式发现进行分析，提出了基于遗传建模的公式发现算法，并给出了具体的描述，对算法中关键对象的数据结构给出了具体的设计，最后针对数列归纳和公式发现给出了运行结果。 |
|
Abstract: Based on PGP algorithm,this paper proposes animprove d crypto-system that can be applied to the secure electric mail,and its securit yis also discussed.
|
|
|
文摘:基于PGP算法，文中提出了一个应用于安全电子邮件的改进保密系统，并讨论它的安全性. |
|
Abstract: Based on a description of the principle of surface wave survey exemplified by the surface wave exploration in the harnessing and beautification of Fenhe River, this paper recounts the field work method,data-processing and geological effects of s
|
|
|
文摘:通过对面波勘测原理的介绍，结合太原城区汾河治理美化工程面波勘探实例，简述面波勘探野外工作方法、资料处理及达到的地质效果。 |
|
Abstract: Based on a lot of technical literature both abroad and domestic,this paper analyses the recent developments and the general trend of dewatering tech nolohy.
|
|
|
文摘:在查阅大量文献资料的基础上，分析了国内外高效脱水技术与设备的发展动态，分析了今后的发展趋势。 |
|
Abstract: Based on a previous algorithm proposed in [ 1 ], this paper addressed an adaptive hashing algorithm of Chinese characters.
|
|
|
文摘:在文献[1]的基础上，本文提出了一个适合中文信息处理用的汉字自适应散列分组查找算法。 |
