招标项目

<正>1.江苏NO.2014G15地块房地产开发项目所属行业:水利桥梁建筑项目简介:南京朗庆置业有限公司(属于南京朗诗地产有限公司全资子公司)拟在南京江宁空港开发区信诚大道以南、来凤路以西地块内投资18.5亿元建设房地产项目,正在审核备案,本项目总用地面积为201053.8平方米,其中B地块用地性质为二类居住用地,用于建设住宅及配套设施的总用地面积为164493.6平方米,总建筑面积247305平方米,此外代征道路面积为6276.7平方米,代征绿地面积为3488.3平方米;E地块用地性质为小学用地,用于建     

Convective Drying of Sludge Cake

This paper presented an experimental study on convective drying of waste water sludge collected from Beijing GaoBeiDian Sewage Treatment Plant, particularly on the correlation between the observed shrinkage dynamics of sludge cake and the drying curve. During the initial stage of drying the process resembles to that of a particulate bed, in which moisture diffuses and evaporates at the upper surface. Conventional drying theory assuming a diffusion-evaporating front interprets this period of drying. Consequently, owing to the very large shrinkage ratio of the dried cake, cracks emerges and propagates on and within the cake body, whence inducing evaporating channel that facilitates the water removal. This occurrence compensates the reduction of surface area for evaporation, whence extending the constant-rate period during the test. Afterwards, the cracks meet with each other and form isolated cake piles, while the subsequent drying occur mainly within these piles and the conventional theory fails. The tran     

An Exact Solution for Heat Transfer of a Jet Co-Axially Impinging on a Rotating Disk and Its Comparisons with Stagnation Point Experiments

IntroductionJet impingement is a widely used high-efficiencytechnique fOr cooling rotating disks, which are end-wallsurfaces of gas turbine rotors, comPuter disk drives etc.Fluid f'low, heat trallsfer and geometric arrangement inthe case of a single round jet impinging co-axially in anorthogonal mode on a rotatng disk are characterized byFig. l.Many peculiarihes of fluid fIow and heat transfer ofreal impinging jets under comPlicated conditions(different system geometry, impinging flow proper…     

Mssbauer study of the effect of Nb in Fe-based nanocrystalline alloy

1 INTRODUCTIONFe-based alloys with a nanocrystamne structure are very attractive soft mopeticmaterials. Especially, it has been found that nanocrystalline ajloy Feva.SCu1Nb3Si13.SBgalloy (Finemet) shows excellent magnetic properties[1'2]. The ndcrostructure of the alloys consists of ultra-ace crystalhae grains with diameter of 10-20urn and a residualamorphous phase. The relation of the ndcrostructure and the magnetic properties haseXtensively been investigated. It has been reported th…     

钻石的零售市场及品牌的重要性

从４Ｃ到商业化几个世纪以来 ,钻石的买主和拥有者对钻石看重的是其严格按４Ｃ评估的瑰丽程度 ,它们给佩戴者带来的快感 ,从佩戴者周围激发的敬畏和艳羡。这一情况在２０年前达到了顶峰 ,当时出现了钻石热 ,报上连篇累牍地报导８００美元的黄金和“钻石投资” :一克拉Ｄ色级无瑕钻石售６２０００美元 ,空谈家称 ,这个价格既使再高一倍仍然便宜 ,投资热并未持续太久 ,但其遗产———一种越来越依赖于实验室分级报告和价格表的形式 ,永远地改变了钻石市场。出版商ＭａｒｔｉｎＲａｐａｐｏｒｔ起步于１９７８年 ,当时他们报价单的印刷跟不上钻…     

节能降耗的优选产品——科里奥利质量流量计

中国在节能降耗方面，与发达国家相比还有很大差距，去年我国的能耗指标一完成单位GDP节能4％未实现。因此在“十一五”期间完成单位GDP节能20％的目标是一个非常艰巨的任务。中国的经济在不断的发展过程中，如何才能在资源的开采和生产消耗等环节达到减量化、再利用和节能降耗等目的。研究表明中国在能源消耗方面，如果通过提高工业耗能效率水平并使之达到国际水准，那么将有降低40％～50％能耗的潜力。为此，《中国仪器仪表》杂志记者专访了艾默生高准公司（MicroMotion）亚太区销售／市场部总监一邓凯文先生。[编者按]     

Mullite Precursor Gels and as Binder in Corundum-mullite Refractory

1IntroductionMullitehasbeenstudiedforoneoftheprimecandi datematerialsforhightemperaturestructuralapplicationsbecauseofitsthermalandchemicalstability ,excellenthightemperaturepropertiessuchashighstrengthretentionandhighcreepresistance[1- 2 ] .Mullitehasbecomein creasinglyimportantnotjustinheatexchangers ,electron icpackagingandopticalmaterialsbutalsoasthermalbar riercoatingsandinadvancedrefractoryapplication[1] .Differenttypesofmulliteprecursorsweredescribed ,oneofthemisthesol gelmethodbywhichd…