碳

By using the pules echo ultrasonic technique with 10 MHz. the ultrasonic velocities of the amorphouse carbon and their pressure dependence have been measured in the pressure up to I GPa. We have calculated its second, third- and combinations of forth-order elastic constants, and have researched its Gruneisen constant.

本文报导了利用10MHz超声脉冲&回波重合法&，测量非晶碳的声速及其在1GPa压力以内的变化规律，得到非晶碳的二阶弹性常数，三阶弹性常数及组合的四阶弹性常数，从而进一步计算和研究非晶碳的Gr？

The retorting process of coals using hot char as solid heat carrier lines up every single process which is needed for the production of CMS.

以灵武煤半焦GLW-72为原料，粉碎至粒度＜160目，混入40wt%的亚硫酸盐纸浆废液成型，将成型物在N〓气保护下，以10℃/min的升温速率加热到900℃碳化45min，冷却到室温所得碳化产品用于变压吸附空分，可获得含N〓96.3vol%的富N〓气体；将上述产品进一步作碳沉积处理，可获得空分性能达98.4vol%的炭分子筛，该结果与在同一空分装置上测得的国外炭分子筛的空分性能（98.23vol%）相当。

The experimental results denoted that the finer pearlite along the austenite boundaries in the as-cast Cr30Ni20NRE steel disappeared first under long-term and high-temperature service condition, and that an umber of Cr- richened carbides were formed due to unila-teral carburizing at long-term and high- temperature, consequently causing Ni to concentrate, bulging and calalyzing decomposition of the carburizing gas.

试验结果表明，长期在高温条件下服役，铸态Cr30Ni20NRE耐热钢中沿奥氏体晶界的珠光首先融入奥氏体，长期高温单边渗碳形成大量富铬碳化物，促使镍富集并起泡形成瘤状物，催化含碳气体的分解；表层瘤状物使辐射管表层疏松，表面积扩张，加快了碳向基体的渗入，提供了碳化物持续长大的条件，并引起沿碳化物周边开裂和奥氏体基体严重萎缩；合金元素的重新分布造成主合金元素铬和镍产生两极分化，镍和硅的富集促使石墨化，与侵入的氧形成内部氧化空洞和膨胀疏松，最终导致构件穿孔失效。

Currently sequestrating CO2 to agricultural soil is a. front field in soil carbon cycle studies, among which whether agricultural soil redistribution leads to carbon sequestration has developed scientific, political and social interests.

当前，农田土壤固碳过程是土壤碳循环研究中的一个前沿领域，其中农田土壤再分布过程能否导致土壤固碳已引起科学上、政治上以及社会上广泛的兴趣。

B〓C coating possessed 4% of porosity, 12. 8Gpa of bonding strength, 28Gpa of microhardness, and its modulus is up to 230Gpa. It would provide a kind of coating material with excellent properties for many industrial fields.(2) The phase composition of B〓C coating was studied by XPS, XRD and EDS. It was found that: the oxidation activity energy of B〓C powder and coating is different, which is due to the difference of phase composition between them.

用XPS、XRD和EDX研究了碳化硼涂层的相组成，发现碳化硼粉末在涂层形成过程中不可避免的存在分解；比较了碳化硼涂层和粉末在高温下的氧化行为，发现涂层的氧化活化能比粉末要低，这是由于涂层和粉末相组成不同所造成的。

A process for continuously preparing nm carbon tubes on fluidized bed include such steps as carrying the transition metal oxide catalyst on carrier, putting it in catalyst-activating reactor, reduction reaction by introducing the gas mixture of nitrogen gas and hydrogen or CO gas to the reactor, loading the catalyst into fluidized bed, and introducing mixed reaction gas to its to grow said nm carbon tubes on the catalyst by chemical gas-phase deposition.

本发明涉及一种流化床连续化制备碳纳米管的方法，首先将过渡金属的氧化物催化剂载于担体上，然后将其放在催化剂活化反应器内，通入流动的氢气或一氧化碳与氮气的混合气体进行还原反应，最后将催化剂送至流化床中，通入反应混合气体，流化床的下部则得到碳纳米管。本发明的方法和装置，在流化床中经过化学气相沉积，在催化剂载体上生长出碳纳米管。

So the key point of removing carbon dioxide by PSA lied in the development and selection of high quality adsorbent and the design for suitable process flow.The purpose of this paper was to remove carbon dioxide from synthesis gas of synthetic ammonia industry by the way of PSA.

因此变压吸附法脱碳的关键在于高效脱碳吸附剂的开发和选择，以及合理的工艺流程的设计，以实现脱碳过程的高选择性和产品气的高回收率。

This paper described the mechanism of the transfer and introduced several methods to calculate the amount of carbon transfer. We contrasted to these methods, and expounded the biogeochemical ways of stable isotope techniques. Problems existed in the research were discussed.

表述了该地区SOC向SIC转移的机理；介绍了几种常用计算碳转移量的方法；并对其进行对比分析；重点阐述了应用碳稳定同位素技术的生物地球化学方法在碳转移量计算中的应用。

The change of pH value and viscosity in carbonization process of suspension were compared and analyzed.

目前，有关纳米碳酸钙的制备研究，主要集中在碳化反应工段的碳化反应设备结构、碳化反应条件优化、添加剂选择、气体分布器形式等方面[2～5]，而就原料石灰的质量对纳米碳酸钙制备过程和产品质量的影响研究报道很少。

The contribution of water concentration on the growth of carbon nanotubes was investigated. Scanning electron microscopy results showed that the grown CNTs in CH4/H2 gas mixure had chain-shaped structure and the diameter was about 40—90nm. With the addition of proper amount of water, the diameter of CNTs became uniform, and the surfaces of nanotubes were fully covered with nano-sized node-like structures. When more water was added, branched carbon nanotubes were synthesized.

场发射扫描电子显微镜结果表明，不加水时，制备出的碳纳米管直径不均匀，分布在40—90nm之间，呈链节状的结构；加入少量水时，制备出的碳纳米管直径比较均匀，集中在70nm左右，表面为瘤状结构；当水的流量进一步增加时，得到的碳纳米管表面光滑，出现了枝状结构。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。