黑龙江省逊克县高松山金矿构造控矿特征及找矿方向

高松山金矿床是一浅成低温热液型金矿床,矿区内断裂构造发育且具有多期活动的特点,沙阿其河断裂及其伴生的NWW、NEE、近EW向次级断裂构造是矿区内主要控矿构造,控制了矿区内金矿的产出。在构造控矿研究的基础上,结合前人的研究成果,指出了矿区进一步找矿方向。     

十二五教育科学国家社科基金立项课题趋势研究

以第十二个五年计划为契机,运用文献计量学的方法,对全国教育科学规划领导小组办公室公布的六五计划到十一五计划期间的教育科学国家社科基金项目立项课题的资料,进行多角度、多方位的比较,分析教育科学立项的基本特征。结果显示:教育学学科发展多元化,各年度立项螺旋式递增,立项主旨体现社会发展动态,立项类型以教育部与国家级课题为主。立项单位集中于中东部地区的师范类院校,综合类院校及独立科研院所相对较少,且各单位立项数不均。立项课题主持人更新较快,呈现逐年递减趋势。中西部地区获准立项比例较低,呈现逐年递增趋势。教育科学各分支学科立项比例失衡,应进一步提升该学科的地位,探究教育科学学科群建设的发展趋势。     

多元化社区体育服务体系构建研究

随着经济的发展,我国全民健身事业进入了"黄金发展期",而社区体育服务体系的建设正是发展我国全民健身事业开展的基础,也是构建和谐社会的一项重要举措。为此,本文通过对各种观点的分析,对"多元化社区体育服务体系"进行了界定;阐述了五个子系统的作用及构建途径,并提出了构建多元化社区体育服务体系应注意的问题。     

基于复杂性原理的黄金市场价格分析及其应用研究

从定量分析的角度出发,通过分形维数、hurst指数和Lyapunov指数等研究复杂性系统常用的特征指标来分析美国黄金价格的分布特征和非线性结构,以美国黄金市场的价格走势数据为例构造RBF人工神经网络对黄金市场进行预测.研究结果表明黄金价格市场存在较为复杂的分形结构和混沌现象.     

Electrochemical Behavior and Determination of Trifluoperazine at Decanethiol Self-Assembled Monolayer Modified Gold Electrodes

0　IntroductionTrifluoperazine is a derivative of phenothiazine. It hasneuroleptic and antidepressive actions, hence has beenwidely used in the treatment of psychotic patients[1]. As it hassuch function and application, trifluoperazine’s characteristicsand detection methods were studied by means of spectropho tometry[2], capillary zone electrophoresis[3], titrimetry[4],fluorometry[5], high performance liquid chromatographyetc[6]. Because of the electroactivity of trifluoperaz…     

电镀挂具上镀金层的回收与提纯

采用以草酸为还原剂的氧化－还原法，在溶液温度为５０～７０℃，ｐＨ为３～５的条件下，回收与提纯电镀挂具上的镀金层，金的回收率可达９７．９％，纯度为９８％以上。     

Development of Olefin Polymerization Catalysts and Their Commercialization

1TheinternationaltrendonpolyolefincatalystR&DandcurrentsituationinChi na　Therapiddevelopmentofpolyolefinindustryhasacloserelationwiththeprogressinpolyolefintechnology.Catalyst,asacoreofthetechnology ,playsaleadingroleintheevolvementoftheindustry .Withthedevelopmentofcatalyst,polyolefinprocessesaresimplified ,productgradesdiversi fied ,andresinperformanceimproved .Theseprogresseshavewidenedtheapplicationscopeofresinsandbettermetthede mandfromsociety .　Initsdevelopment,threekindsofpolyolefin…     

河台韧性剪切带金矿床微量元素稀土元素地球化学特征

河台金矿床赋存于河台韧性剪切带中,矿体严格受剪切带控制,矿石类型以糜棱岩型矿石为主,并有少量石英脉型矿石。矿床以富集Au,Ag,Se,S,As,Bi,Cu,Sb的元素组合为特征,Au/ag比值在2～10,同时W,Sn,U,Pb也有一定程度的富集。亲铁元素Sc,Ti,V,Cr,Mn,Co,Ni出现亏损;大离子亲石元素Rb,Cs发生富集,而sr、Ba、Y等出现亏损,同时REE元素也出现亏损,稀土元素组成以轻稀土富集为特征,∑LREE/∑HREE为5.1~11.53,∑REE在54.49×10-6～137.45×10-6之间,出现明显的Eu亏损,δEu在0.52~0.66之间。根据特征富集元素组合及元素含量向深部的变化趋势,推测矿床向深部的延伸仍具有很好的工业前景。     

Ethylene Oligomerization and Polymerization: Alternative Iron Catalysts beyond 2,6-Bisiminopyridyl Iron Complexes

1Introduction Polyolefin industry arrives the option to transfer from multiple-site systems of the classical Ziegler-Natta catalysts to more sophisticated single-site catalysts. The late-transition metal compounds were traditionally assumed with poor polymerization properties due to the highly competitive chain-termination step, and produced the short-chain oligomers up to 40 carbon atoms (SHOP catalysts). Recently the polyolefins employing latetransition metal complexes as catalysts became a hot research subject with the pioneering works by Brookhart and Gibson. It is promising for nickel catalysts to use solely ethylene as monomer for highly branched polyethylenes, and the designed nickel catalysts were not useful in industry. It is critical time to investigate the relationship of coordination modes of nickel complexes and its catalytic activities and the properties of resultant polyethylenes.     

2，2＇─联吡啶在金电极表面吸附行为的研究

本文使用恒电位方波慢扫描法，测量了不同浓度的２，２＇─联吡啶在金电极表面的微分电容曲线，从而得到２，２＇─联吡啶在金电极表面的吸附电位范围为＋０．６５～－１．２０Ｖ（ＶＳ．ＳＣＥ）、吸附类型服从Ｆｒｕｍｋｉｎ型吸附、吸附自由能为－３５．８６ＫＪ·ｍｏｌ－１。