碳粒

In the present study, the ability of wastes of 5 local bamboo species (Dendrocalamus latiflorus, Phyllostachys makinoi, P. pubescens, Bambusa stenostachya, and B. dolichoclada) to remove heavy metal ions of Cu, Pb, Cd and Ni from aqueous solutions, with different reaction times, particle sizes, and pH values were evaluated and compared with 4 known biosorbents of activated carbon, bark, exhausted coffee, and exhausted tea by inductively coupled plasma atomic emission spectroscopy.

本研究以感应耦合电浆原子发射光谱仪评估五种台湾常见竹材－麻竹、桂竹、孟宗竹、莿竹与长枝竹等废材在不同反应时间、粒径大小及不同pH值等条件下，对溶液中铜、铅、镉与镍等重金属之移除效果，并与四种已知生物性吸附材料之活性碳、树皮、咖啡渣与茶渣等进行比较。

The results showed that (1) The grain size of nanometer YiO_2 was40～80nm.The wavelength corresponding to the maximum absorbency values were observedin the 200～320nm range.The crystal structure of carbon doped TiO_2 photocatalyst is primarilyanatase(22.43% rutile), and the content of carbon is about 4.6%.(2) The relative humidityvaring from 8% to 80%, the photocatalytic degradation degree of benzene increased withincreasing relative humidity; and to toluene, degradation rate was hanced by relative humidityup to 60%, and more or less inhibited above 60%.(3) Scheme and results of orthogonal testswere used by evaluating the photocatalytic performance of the gas phase methanol, acetoneand 1-heptane.The results revealed that their degradation degree reached 84.5%, 93.39% and93.45%, respectively.(4) The 254nm UV lamp showed higher photocatalytic degradation rate.For methanol, acetone and 1-heptane, it was found that photocatalytic degradation reactionoccurs with the light strength of daylight lamp.(5) Under the the same conditions, 15%degradation degree has been obtained for benzene, whilst about 10% degradation degree wasattained by Degussa P25; During the initial phases, the toluene revealed higher photocatalyticactivity, comparing with Degussa P25, the degradation degree of methanol, acetone and1-heptane were slightly lower.

结果表明：(1)CVD法制备的纳米TiO_2光催化剂，颗粒球形度好、粒径在40～80nm之间；最大吸光度值所对应的波长为200～320nm；含碳量约为4.6％；晶型组成主要为锐钛矿型，金红石的含量约为22.43％；(2)在相对湿度为8％～80％范围内，苯的光催化降解率随着相对湿度的增大而增大；甲苯在相对湿度为60％时达到最好降解效果，当相对湿度增大到80％时光催化效果降低；(3)将正交实验设计及实验方案应用于气相甲醇、丙酮和正庚烷光催化降解研究，实验结果表明：三者最高降解率分别为84.5％、93.39％和93.45％；(4)有254nm紫外灯参与的光催化实验可以大大提高有机气体的光催化降解率；在日光灯的照射下，掺碳纳米TiO_2对气相甲醇、丙酮和正庚烷具有一定的光催化氧化能力；(5)较P25粉，在相同的光催化操作条件下：气相苯的平均降解率达15％，高于P25粉10％的降解率；气相甲苯在初始阶段具有较高的反应速率；气相甲醇、丙酮和正庚烷的降解率略低于P25粉。

MRS2 encode a magnesium transporter protein in Saccharomyces cerevisiae and deletion of MRS2 gene results in decrease in mitochondrial magnesium concentration, Group II RNA splicing defect and growth defect on nonfermentable carbon source.

MRS2 基因编码线粒体镁离子转运蛋白，MRS2缺失会导致酵母线粒体镁离子浓度下降、线粒体内II型内含子剪接缺陷和非发酵碳源上的生长缺陷。

A steel plate having a tensile strength of at least about 930 MPa (135Ksi), a toughness as measured by Charpy V-notch impact test at least about 120 joules (88 ft-lb), and a microstructure comprising at least about 90 volume percent of a mixture of fine-grained lower bainite and fine-grained lath martensite, wherein at least about 2/3 of said mixture consists of fine-grained lower bainite transformed from unrecrystallized austenite having an average grain size of less than about 10 microns and comprising iron and specified weight percentages of the additives: carbon, silicon, manganese, copper, nickel, niobium, titanium, aluminum, calcium,rare earth metals, and magnesium, is prepared by heating a steel slab to a suitable temperature; reducing the slab to form plate in one or more hot rolling passes (10) in a first temperature range in which austenite recrystallizes; further reducing said plate in one or more hot rolling passes (10) in a second temperature range in which austenite does not recrystallize, quenching (12) said plate to a suitable quench stop temperature (16); and stopping said quenching and allowing said plate to air cool (18) to ambient temperature.

一种钢板，其抗拉强度至少约930MPa135ksi），在－40℃（－40°F）下，采用夏氏V型缺口冲击试验测定的韧性至少约120焦耳（88英尺－磅），并且其显微组织包含至少约90％体积的细晶粒的下贝氏体和细晶粒的板条马氏体的混合物，其中该混合物的至少约2／3由从平均粒径小于约10微米的未再结晶奥氏体转变而来的细晶粒的下贝氏体组成，而且，其中所述的钢板包含铁和特定重量百分比的添加元素：碳、硅、锰、铜、镍、铌、钛、铝、钙、稀土金属和镁，所述钢的制备过程为：将一钢板坯加热至一个适当的温度；在奥氏体可发生再结晶的第一个温度范围内，采用一个或多个热轧道次（10），将所述板坯轧制成板材；在奥氏体不发生再结晶的第二个温度范围，采用一个或多个热轧道次（10）进一步轧制所述板材；将所述板材淬火处理（12）至一个适当的淬火终止温度（16）；停止所述淬火处理并将所述板材空冷（18）至室温。

By adding different additive during carbonating process, cubic, spherical and chain calcium carbonate are prepared. Moreover, ultrasonic technique is used in the experiment.

通过在碳化反应过程中向反应溶液加入不同种类的添加剂，制备出了立方形、球形、链状碳酸钙，且其平均粒径均小于100nm。

The experimental results show that most of the diesel particulates are wad-shaped and chain-shaped and composed mainly of organic compounds or carbon particles covered with organic compounds. The peak value of the diesel particle size distribution is about 40 nm. In the exhaust gas, the PM concentration was 32. 6mg/m~3～143.6mg/m~3, NO_x 208 × 10~(-6)～ 568×10~(-6), SO_2 18 × 10~(-6) and HC about 16 × 10~(-6)..

实验结果表明，颗粒物大多呈絮状及链状形态，其构成主要为有机物或为有机物所覆盖的碳微粒，粒径分布峰值约为40nm；柴油机废气中颗粒物浓度为32.6mg／m~3～143.6mg／m~3，NO_x浓度为208×10~(-6)～568×10~(-6)，SO_2和HC化合物浓度分别为18×10~(-6)和16×10~(-6)。

The company's alloy products used in high-quality tungsten carbide alloy powder as raw materials, the world's leading production technology, advanced selection of bilateral pressure XDZY-16A automatically Press, XDZL dumping rotating tube feeder system, XDPW spray drying system Tablets of equipment, XDYT vacuum sintering dewaxing one furnace, precision control of temperature and pressure control equipment for fully automated operation, with more than climate control and ensure stability in the production process.

本公司生产的合金制品系采用优质的碳化钨合金粉末为原材料，采用世界领先的生产工艺，选用先进的XDZY-16A双侧压自动压机，XDZL倾旋筒制料机，XDPW喷雾干燥制粒设备，XDYT真空烧结脱蜡一体炉，精密控制设备温度和压力控制为全自动化操作，带多气氛控制，保证了生产工艺过程稳定。

Powder metallurgy technology and equipment: Injection forming, pressing, fritting, breaking, polishing, sizing, drying, quenching, reducing, charring, mould and shooting etc

粉末冶金及硬质合金技术、设备类：注射成形、压制、烧结、破碎、研磨、筛分、干燥、淬火、还原、碳化、模具、机床及制粒等粉末冶金应用技术和设备

Powder metallurgy and magnetic material technology and equipment:Injection forming, pressing, fritting, breaking, polishing, sizing, drying, quenching, reducing, charring, mould and shotting etc

粉末冶金及磁性材料技术、设备类：注射成形、压制、烧结、破碎、研磨、筛分、干燥、淬火、还原、碳化、模具、机床及制粒等粉末冶金应用技术和设备

The results indicate that there are high dispersions and high loadings of SnO2 nanoparticles on MWCNTs.

结果表明SnO2纳米粒子均匀地覆盖在碳纳米管上，粒径小于10nm。

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。