查询词典 carbon

We prepared the ordered porous alumina membrane by a two-step anodization method in oxalic or sulfuric acids, which is a self-ordered hexagonal array of cells with an adjustable pore diameter of 20-150nm and a different pore structures (i.e. Y-branched, dendriform, toothed and torous ones). Furthermore, the template-electrodeposition, vapor-catalytic growth, and controlled chemical etching were developed for well-aligned carbon nanotubes and oxide nanopillars with adjustable diameter, Al2O3-AlN one-dimensional heterojunction, Y-junction and dendriform metal nanowires, as well as Y-junction, and torous carbon nanotubes. The resultant one-dimensional junctions were characterized by XRD, SEM, TEM,HRTEM, and STM, and the field emission of the well-aligned carbon nanotubes and the luminescence of ZnO nanopillar array have also been mearsured.

完善和发展了阳极腐蚀法制备多孔氧化铝膜的方法，制备出了孔径在20-150nm之间可调和具有不同孔结构（如Y形、树枝状、锯齿状）的系列多孔氧化铝模板，在此基础上，利用电化学沉积、气相催化生长和化学控制腐蚀等方法，成功地生长出具有可调直径的碳纳米管和氧化物纳米柱有序阵列、Al2O3-AlN异质结纳米线、Y形和树枝状的金属纳米线以及Y形、藕节形和锯齿形的碳纳米管等多种一维结纳米材料及其阵列体系，探索了基于模板孔壁内沿生长一维结纳米材料的机制，较系统的研究了碳纳米管阵列的场发射性能和氧化锌纳米柱的发光性能，为低维纳米材料器件化提供了实验基础。

The main problems resulting from the active carbon discolorization from GF extraction liquor in industry are the entrainment of GF in active carbon and environmental pollution due to pile-up and disposal of spent active carbon.

目前工业上采用的活性炭提取液脱色存在的主要问题是，活性炭中难免夹带有灰黄霉素，废弃活性炭的堆积与处置对环境造成污染。

With the soil planted the konjac as the investigation and study object and planted corn as CK, the soil organic carbon, soil active organic matter, soil entire nitrogen, edaphon quantity and edaphon community structure was determined. The change of soil carbon nitrogen, edaphon carbon nitrogen and edaphon bacterium and fungus was analyzed.

方法］以种植魔芋地的土壤作为调查研究对象，用种植玉米的土壤作为对照，测定土壤有机碳、土壤活性有机质、土壤全氮、土壤微生物量和土壤微生物群落结构，分析土壤碳氮、土壤微生物碳氮和土壤微生物细菌和真菌的变化。

How to reduce to small opening ratio and to increase resist oxidation capability and to reduce consume of anode carbon lump , as well as how to improve to electric conductivity ratio and to reduce electric power consumption of anode carbon lump and to increase economy benefit is main purpose on optimization and treatment on electrolyze aluminum anode carbon lump .

阳极炭块优化处理的目的是降低炭块孔隙率，提高其抗氧化性能，降低阳极消耗；提高阳极炭块的导电率，降低电耗，提高经济效益和改善环境质量。

The thermodynamic functions of NO removal by low carbon hydrocarbons such as methane, ethane, ethene, ethine, propane and propene are calculated,and enthalpy changes of reaction producing activated particles from low carbon hydrocarbons in electric field are calculated to find out the appropriate low carbon hydrocarbons for removing NO.

通过计算甲烷、乙烷、乙烯、乙炔、丙烷和丙烯等低碳烃与NO反应的热力学函数和低碳烃在电场作用下产生活性粒子的反应焓变，找出合适的低碳烃作为脱除NO的添加剂。

The results show that under the follow conditions: pyrolysis temperature 270癈,active carbon and: ethyne black=9:l, carbon pretreated with HNOs, 7.18% Mn(NO3)2(vs. carbon support) catalyst can exhibit the best performance. In order to improve the electrocatalystic performance of MnO2, Pb(CH3COO)2 , La(NO3)3-6H2O and Ce(NO3)3-6H2O are chosen as additives of MnCVC air electrode . Electrochemical performance of the electrodes is studied by current-potential polarization curves.

为了提高催化剂的性能，选择了醋酸铅、稀土作为添加剂，采用稳态极化和交流阻抗测试方法，结果表明：铅的氧化物、稀土La和Ce可作为MnO_2催化剂的助剂来促进氧气还原反应的进行，醋酸铅添加7.5％时极化最小，在一般金属-空气电池的工作电流密度20～50mA／cm~(-2)下，电位比单独MnO_2催化剂可提升30～50mV。

The reason for the fail of carbon nitride synthesis was analysed and relevant graphitoid carbon nitride and unformed carbon nitride s were introduced in the article.

分析了妨碍碳氮化物合成成功的原因，对相关的类石墨的碳氮化合物和无定型的碳氮化合物作了介绍。

The biggest effect that carbon markets have had on emissions so far, according to Kristian Tangen of Point Carbon, has been on investment in developing countries. The Kyoto protocol, a 1997 agreement on emissions, set up a "clean development mechanism" by which reductions in greenhouse gases in developing countries could generate a carbon credit that can be traded alongside the EUA.

碳点公司的克里斯蒂安·唐更说，迄今为止，碳市场对二氧化碳排放影响最大的就是对发展中国家的投资。1997年签订的关于二氧化碳排放的京都议定书建立了一个&洁净发展机制&，通过它发展中国家减少排放的温室气体所产生的碳额度可以与欧盟配额一起用作交易。

Carbon storages of the upper horizon in lessive dark brown forest soil, brown coniferous forest soil and mountain tundra soil were 10959 gC m-2 (0-20 cm), 4199 gC irf2 (0-10 cm) and 6171 gC m~2 (0-32 cm) respectively, occupy 60%,50% and 77% of total carbon storage. This showed that the upper horizon was accumulating soil organic carbon.

显然，低海拔地带土壤发育程度比高海拔带土壤发育程度要好，这是由于高海拔带土壤受火山喷发、气候、温度等自然因素的影响较大，从而致使土壤有机质的发育过程缓慢。

On the basis of the ligamental reticulated carbon foam by Klett J W in 2000 and hollow microsphere carbon foam by Bruneton E in 2002, a hollow microsphere/ reticulated composite carbon foam was prepared by microstructural optimization, carbonization and graphitization respectively.

在Klett J W等人于2000年制备的韧带网络型碳泡沫和Bruneten E等人在2002年制备了一种空心微球碳泡沫材料结构的基础上，分别经过微观结构优化、碳化、石墨化处理，制备出了一种空心微球/网络复合型碳泡沫材料。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。