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The time of the establishment of investment funds in china is not long and still in the growth stage, as a result, with the bull and bear market of the end of the season, the fund has exposed many problems of development. how to solve the problems encountered during development has become the hottest topic recently.
我国的投资基金成立时间不长,尚处于成长阶段,随着牛市的终结和熊市的来临,基金的发展暴露出很多问题,如何解决发展中遇到的难题成为了当前最热的话题之一。
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Thermal neutron radiography is a useful complementary tool of the other non-destructive testing methods for the hydrogenous materials and heavy metal subassembly,and thermal neutron tomography has not been developed in China.
热中子照相技术在检测含氢材料、重金属等样品方面是X射线等其他无损检测技术的有益补充,热中子层析照相技术研究在国内尚是空白。
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With some examples, the correlat ions between the thermal expansion coefficients of minerals and the types of cr ystal structures, the nature of chemical bonds, the valencies of ions , the interionic distances, the percentage ionic characters, the electronic conf igurations of ions and the chemical compositions are discussed and summarised . The crystal chemistry approach has been used in the calculation of the th ermal expansion coefficients for minerals with simple structures and composition s.
晶体化学方法是研究矿物热膨胀系数的有效方法,但由于矿物的热膨胀系数和晶体化学参数之间的定量关系尚未完全弄清,目前仅仅能对简单结构矿物的热膨胀系数进行计算,结构、成分较复杂的矿物的热膨胀系数计算尚缺乏好的晶体化学模型。
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Using of optical microscopy, X-ray diffraction, transmission electron microscopy, hardness and tensile testing, the effect of thermal exposure at high temperatures on the microstructures and of high-temperature tensile properties of rapidly solidified AlCrYZr have been studied. The results show that there are two main phases,Al20Cr2Y(cubic, a=1.437 nm) and DO23Al3Zr(terganal, a=0.4 013 nm , c= 1.732 nm), in the as-solidified alloy. The Al20Cr2Y phase can maintain its cubic structure at 500℃, but the particles coarsen remarkably and even become lumpish. In coarse lumpish Al20Cr2Y phase the plane faults and twin structures exist.
摘 要:采用金相、 X射线衍射、透射电镜、硬度测定和拉伸试验研究了高温热暴露对快速凝固AlCrYZr合金显微组织影响和高温下力学性能的热稳定性,结果表明,快速凝固AlCrYZr合金主要第二相为Al20Cr2Y(立方,a=1.437nm)和DO23Al3Zr(正方,a=0.401 3nm, c=1.732nm),Al20Cr2Y在500℃热暴露尚能保持其立方结构,但质点明显粗化,甚至块状化,在粗大的Al20Cr2Y相中存在有层错和孪晶结构。
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Although the TSOT heat exchanger has been successfully applied in the realm of heat-recovery in industrial boilers and furnaces, the mechanisms of TSOT and its effects of some elements on its heat transfer features are unknown. Reports about the TSOT research have seldom seen. So it is not only urgent but also important to do some investigations on TOST to enrich the heat pipe theory and guide engineering design.
由侧端切向开漩流孔的半开式热虹吸管制成的热管换热器已在工业锅炉、窑炉中初步得到成功应用,但对其内部的机理和有关影响因素尚不十分清楚,在国内、国外文献资料中对该种热管的相关研究资料的报道也较少,因此,迫切需要进行相应的研究,以丰富热管理论并指导工程设计。
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In this paper, the main work has been focused on the rare reported arsenomolybdates, and nine novel compounds have been synthesized. Sandwich arsenomolybdates:(NH_4)_(12)[Cr_2AsMo_7O_(27_2]·11H_2O (1)(NH_4)_(14)[Cu_2AsMo_7O_(27_2]·13H_2O (2) Double sandwich arsenomolybdates:(NH_4)_(12)Cu(H_2O)_4[As_2Fe_6Mo_(22)O_(85)(H_2O)]·19H_2O (3)(NH_4)_(15)[As_2CoFe_5Mo_(22)O_(85)(H_2O)]·16H_2O(4)(NH_4)_(14)Mn_(0.5)[As_2Fe_5MnMo_(22)O_(85)(H_2O)]·22H_2O(5) Cagelike arsenomolybdate:(NH_4)_(11)[AgAs_2Mo_(16)O_(54)]·9H_2O (6) Organic-inorganic molybdenum arsenate complexes:CuAs_6Mo_6O_(30{[Cu_4]_3[CuAs_6Mo_6O_(30)]}_2·6H_2O (7),[Cu_2]_3[As_3Mo_3O_(15)]_2·2H_2O (8)(NH_4)_(10){Cu(H_2O)_4}[AsMo_6O_(21)(O_2CCH_3)_3]_2·12H_2O (9)All of the above polyoxomolybdates were characterized by IR spectroscopy, TG-DSC, elemental analysis, and single-crystal X-ray analysis to identify their structures and chemical compositions.
本文选择目前报道尚少的砷钼杂多化合物为研究重点,合成了不同结构类型的九个新的杂多化合物:单夹心化合物:(NH_4)_(12)[Cr_2AsMo_7O_(27_2]·11H_2O(1)(NH_4)_(14)[Cu_2AsMo-7O_(27_2]·13H_2O(2)双夹心化合物:(NH_4)_(12)Cu(H_2O)_4[As_2Fe_6Mo_(22)O_(85)(H_2O)]·19H_2O(3)(NH_4)_(15)[As_2CoFe_5Mo_(22)O_(85)(H_2O)]·16H_2O(4)(NH_4)_(14)Mn_(0.5)[As_2Fe_5MnMo_22_O_(85(来源:AbcccBC论文网www.abclunwen.comH_2O]·22H_2O(5)笼状结构化合物:(NH_4)_(11)[AgAs_2Mo_(15)O_(54)]·9H_2O(6)有机配体修饰的化合物:CuAs_6Mo_6O_(30{[Cu_4]_3[CuAs_6Mo_6O_(30)]}_2·6H_2O(7) [Cu_2]_3[As_3Mo_3O_(15)]_2·2H_2O(8)(NH_4)_(10){Cu(H_2O)_4}[AsMo_6O_(21)(O_2CCH_3)_3]_2·12H_2O(9)对上述新化合物进行了瓜光谱分析、元素分析、热分析和X-射线单晶衍射测试,确定了它们的组成和结构,对部分化合物还进行了UV-vis及荧光光谱分析和循环伏安表征。
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The numerical simulation results agree satisfactorily with the existing experimental results of dropwise condensation heat transfer on copper surface over a wide range of pressures.
本论文应用随机分形模型来描述珠状凝结液滴的空间分布和尺度分布,在此基础上实现了珠状凝结换热的直接数值模拟,并将此方法推广到核态池沸腾换热的数值模拟中,这在国内外尚属首次。
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Girls on a Bridge, one of Edvard Munch's most widely popular and acclaimed motifs, was painted during one of the most turbulent periods of his life.
对莱热而言,塞尚的艺术是一种造形的对立, 1909-1913年间在莱热的立体派绘画期中,这种现象导致了一种近乎抽象的艺术,但根本上它是现代写实主义的基础。
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However, the risk of overheating is already plaguing the industry that is not yet mature.
不过, 过热的风险已经在困扰这个尚不成熟的行业。
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The fire-proof safe is tested by the highest point 1030℃,burned for 1 hour....
经高温燃烧后,紧接着将尚红热的防火保险箱提升到4米高度作坠落测试。
- 更多网络解释与尚热的相关的网络解释 [注:此内容来源于网络,仅供参考]
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miliaria:痱子
病因和发病机制 发病原因尚不十分清楚,但遗传与地...概述 痱子(miliaria)是高温潮闷热环境下,出汗过多引起的小水疱或丘疱疹. 也称汗疹. 病因和发病机制 在炎夏或湿热环境里,汗液大量分泌,不能及时地从体表挥发,致使汗管口角质浸渍、肿胀,
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Lithocarpus:柯属
这里除了在山地南坡低地或沟谷中因受小地形隐蔽、水热条件优良的情况下,尚偶见有南部分布过来的亚热带季风常绿阔叶林的种类成分或局部的热带林的层片外,一般山地森林植被皆以壳斗科树种占优势,主要是常绿的栲属(Castanopsis)、柯属(Lithocarpus)和栎属(Quercus),
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leng:冷
尚文婕昨天选歌和演唱都非常的好,她送上的标新立异的评语是:你今天的衣服为你的歌声打分了......许飞和刘力扬站在一起时,她说:你们都是冷的,但刘力扬冷里有力量,许飞却像冰山,破冰之后里面的水就是热的(必须提醒的是春晓同志发音里把"冷"(LENG)明显弄成(NEN)了,