We investigate the phenomenon of microseisms caused by storm and typhoon based on the data collected from gravimeter and broadband seismograph of Tai'an station in Shandong Province since 2016 by using the method of time-frequency analysis.The results show that the frequency of microseism signals produced by these two weather processes almost distribute in the range of 2-20 s,and their energy mainly concentrate on 5-7 s,and there is an energy steadily enhanced frequency band near 15 s.Microseism signals generated during storm have a dynamic characteristic of a decreasing frequency.In fact,the microseism signals generated under both weather conditions show a continuous,high frequency and long duration nature,which reflects the moving characteristic of the excitation source of microseisms signals.Considering the correspondence between the microseisms of Tai'an station and the storm and typhoon,it reveals that the microseism is a kind of micro vibration process,which is related to the offshore storm or typhoon in open sea,rather than a precursory anomaly associated with earthquakes.

In this paper, though a coordinate conversion program of coal ifeld geological and geophysical prospecting company of Jilin Province, the authors analyze comparatively frequently-used coordinate transformation in surveying and mapping work and share used correct mathematical model in the program, which provide reference for relevant measurement.

污泥浓缩池是污水处理厂的主要臭气源之一,消除臭气污染是环保大势所趋.在深圳滨河污水处理厂污泥浓缩池除臭工程设计中,对臭气的封闭、收集和处理系统进行了方案论证和设计选型,肯定了膜结构的封闭优势和生物滴滤法的处理效果,可为同类工程的实施提供参考.

The induced polarization method has been applied in the metals,oil,mineral resources and groundwater exploration,which is at present one of the most effective geophysical exploration methods.Induced polarization method in electronic conductive mineral reaction is very sensitive,this not only in the process of exploration can be observed at the same time in the power supply of potential difference at a time,and can still be observed after power off,slow attenuation of residual potential difference,it is still slow after power attenuation of residual potential difference,is caused by the electrochemical action,when measured in electron conduction of ore body,such as metal sulfide ore and some metal oxide deposits exist,we will be observed in the electrochemical function increased significantly,so the slow decay residual quantity of electrical potential difference looking for metal deposit important clues and references.

The proper winding ratio can prevent yarn overlapping resulting from too small yarn interval when winding,but the yarn separation angle decreases with the spindle diameter increasing,which may make yarn overlapping,edge collapsing and other problems.Therefore,the relationship between the winding ratio and yarn separation angle was analyzed using mathematical methods,and it was found that the grade type decreasing winding ratio can avoid yarn separation angle continuous reducing,insure proper yarn interval without affecting regular arrangement pattern.This paper presents a new method which conducts dynamic regulation of winding ratio,decreases the yarn separation angle,prevents unparalleled yarn overlapping and improves yarn package volume.Examples are given as well.

The deformation influenced by the short-impending power coupling between the atmospheric and the earth is analyzed in the paper.According to the pressure data recorded by Tai'an station,the short-impending stress reflected by the seismic precursory instruments and discussed their relations.

对电气火灾的产生原因进行了分析,列出了电气火灾监控防范的相关标准。简述了电气火灾监控系统的组成、设置原则以及设计方法。建议电气火灾监控系统设计与应用应充分考虑低压配电系统的特性。并分析了电气火灾监控系统应用中应注意的问题。

TISCO Iron-making Factory 1800m3 BF was blowed in on 31th,Jul,2007. After PCI was started for one month,the target was made to improve injection lance,in order to increase its operating safety,solve air leakage phenomenon during operation,avoid tuyere wear,and realize on-line changing and recycling of injection lance material.

Studies on the 63 ~ 125 μ m particle heavy mineral from56 heavy mineral samples from three cylindrical cores,CJ08-630,CJ08-923,CJ08-1185 of the coast of the East China Sea continental shelf show: Heavy minerals,56 types of species,the highest content of up to 53.1 percent;average levels of low,at 8.5%.To amphibole mineral composition category,curtain-type,stone-like,flaky mineral,pyrite and self-metallic mineral magnetite,limonite,and so on the main.Heavy mineral sources of complex and varied,including land-based sources,since a variety of sources,such as the Health and minerals.Those heavey minerals entered rivers along the coast are the main sources of land-based sources of minerals.There are also heavey minerals which came from the coast and islands of the erosion,erosion of.Sedimentary environment is the main factor which influenced the distribution of heavy minerals.

The reasons of electrical fire were analyzed. The relative standard of electrical fire monitoring and fighting were given. The component, set principles and design method of electrical fire monitoring system were briefly described. It was suggested that the characteristics of low voltage distribution system should be noticed when electrical fire monitoring system was designed and applied. At last, several points for attention of application in electrical fire monitoring system were analyzed.

对东海沿岸陆架CJ08-630、CJ08-923、CJ08-1185 3个柱状岩心56个重矿物样品63～125μm粒级重矿物的研究表明,重矿物种类有56种,最高含量可达53.1%,平均含量较低,为8.5%.矿物组成以闪石类、帘石类、辉石类、片状矿物、自生黄铁矿及金属矿物磁铁矿、褐铁矿等为主.重矿物来源复杂多样,包括陆源、自生等,其中沿岸河流输入物是主要陆源矿物来源,此外还有沿岸和岛屿等的剥蚀物、冲刷物.沉积环境是影响重矿物分布的主要因素.

First the article discusses water resources value and its calculation.Economic loss of pollution water,its essence is that water resources is polluted so causing use value dropping of disppear.On the base of looking back on existing calculating model of economic loss for polluted water pointing at the existing lack in calculation,the article raises applying logistic,model to research on economic loss caused by water pollution.Also according to 2002-2004 water quality monitoring material of Dagujia River vallue supplied by Yantai City Bureau of Environmental Protection,the article researches on because of water pollution causing economic loss and gets the relative conclusion.Finally the article puts forward the effective measurecounter of protection and controll water pollution and public attentions is thoroughly aroused as to its importance.

加入WTO后,我国物流业面临着国外先进物流业的巨大竞争压力和挑战,既有整体物流企业素质和行业内部发展不平衡的问题,也有强大的国外物流企业参与竞争和物流市场份额变化方面的原因.文章结合我国物流产业的运作现状,对我国物流产业发展的制约因素以及存在的问题进行了探讨与分析,提出了我国物流产业的发展战略:制定物流产业发展方针和总目标:加快物流领域信息化、网络化建设;注重人才培养;积极发展第三物流.

The design is in the C language programming foundation,by using Visual C++ 6.0 development environments,the principle of adoption of technology is applied to the design,by using C language for realizing technical processes and the principles of the output deal with the process of programming,as well as the problems encountered and solutions.It realizes the stunt and the special effect of simple image synthesis.And it is trasmitted through Visual C++ visible contact surface for realizing image synthesis.

The value and its calculation of water resource were discussed. Based on the data base of Dagujia River water quality monitoring from 2002 to 2004,the economic loss caused by water pollution was evaluated according to the Logistic model. Some counter-measures preventing and controlling water pollution were put forward.

Hua Feng coal mine has unique advantages to develop circular economy base on its location,resources and social environment. In accordance with the requirements of circular economy,the full development and reasonable utilization of resources are an urgent need. Economic development needs both market mechanism and coal mine system,especially promotion of mine system development.

The development of recycling economy has unique advantages,Beacus of The location,Resource conditions and social environment of Huafeng Mine.In accordance with the requirements of the development of recycling economy.The full development and reasonable utilization of resources is the current implementation of the scientific concept of development as an urgent need to address the issue.Economic development needs of the market mechanism and system of coal dual role.Especially mine inseparable from the promotion system.

Based on the analysis of the domestic and foreign university traveling development,the paper proposes that we should develop university traveling market and establish rational development operation mechanism to maximize benefits of university market development.

Along with the scale expansion of universities,more students are enrolled and more diversified cour-ses are available,and it has added to the difficulty of university management and students' comprehensive quality evaluation.Based on Web,with computers as the main carriers,this system adopts the ASP and the SQL server 2000for database and Dream weaver 6.0and Front Page 2000for the design of Web pages.It is a comprehensive,concise and systematic tool for evaluation and management.Now it has came to be in the spotlight of scientific re-search,and can serve as a good solution to some problems occurred in the process of university reform.