砷的

Because of the rapid development of the wireless communication technology, the design and research of the integrated circuits in the related field has gained more and more attention in recent years. And with the advance of the IC process technology, the cutoff frequency of MOS devices can reach several giga herz or more. It is a trend that CMOS process will replace the III-V compound process such as gallium arsenide or silicon bipolar process which were dominant in the fields of radio frequency and microwave.

近年来，由于无线通信技术的飞速发展，相关领域的集成电路的设计研究也受到越来越多的关注；同时由于工艺技术的不断进步，MOS器件的特征频率也可以达到几个GHz或更高的水平，原来在射频、微波领域占主导地位的三五族化合物半导体工艺如砷化镓及硅双极型工艺也有逐渐被CMOS工艺所取代的趋势。

He performed pioneer research concerning the effects of toxic substances on the heart and blood's circulatory system. He performed important experiments concerning the toxicity of water hemlock, arsenic, monkshood, et al. His most important written work in this field was the 1679 Historia cicutae aquaticae.

他演出的先驱研究有关的影响，有毒物质对心脏和血液循环系统他表演的重要实验，有关毒性的水铁杉，砷，附子，等其最重要的写在这一领域的工作是为1679 沿革cicutae aquaticae 。

The addition of MCMP had not only ensured the water quality of treated effluent to be up to first-class B of "Discharge standard of pollutants for municipal wastewater treatment plant"(GB18918-2002), but also achieved the removal of N and P effectively. Based on surveying the content of heavy metals, the T-Hg is about 81% higher, the TAs is about 110% higher, the TNi is 46% higher, the TK is 24% higher, the TP is 7% higher, the TCr is 64% lower, the TN is 29% lower. The MLVSS/MLSS is lower. The SVI value is from 19.3 to 26.23. This method needed no changes for wastewater treatment process and operation pattern, the extra consumption of power was also needlessness.

但同时发现，总汞较试验前提高81%，总砷较试验前提高110%，总镍较试验前提高46%，总钾较试验前提高24%，总磷提高7%；总铬较试验前减少64%，总氮减少29%，污泥的MLVSS/MLSS值略有降低，SVI值从19.3增加到26.23，为了保证排放的污泥中重金属含量不超标，在以后的实际生产运行中，需要定期以排泥形式排出含重金属等污染物的污泥，以保证污水处理的正常运行。

As an important grain production base of North China, Hetao area can provide high-grade farm products. But there are some serious eco-geochemical problems including soil salification, which restricts regional agricultural development, and endemic diseases of arseniasis and fluorosis, which badly affect the human health.

作为我国北方重要的粮食生产基地可以为全国生产出优质的绿色产品；但河套地区也具有比较严重的生态地球化学问题，首先是土壤的盐渍化制约了河套地区农业的发展，其次是全区以砷氟中毒为主的地方病比较严重，极大地影响了该区人民的身体健康。

After thermodynamic studies on the former two typical fine disseminated gold deposits, the following facts are found: both existent and transferring form of gold in mineralizing hydrothermal solution are predominated by Au 〓 and AuH〓SiO〓; the contribution of AuCl〓〓 is negligible to mineralization; and those contribution of gold bearing complexes including Au with As-S and Sb-S are much less than that of Au 〓 and AuH〓SiO〓, organic complex take effect in some degree during the relatively low temperature activating period of gold.

对以上两个典型微细浸染型金矿床的热力学研究，发现成矿热液中金的存在和迁移形式均以Au〓和AuH〓SiO〓为主，AuCl〓对金迁移成矿的贡献微不足道，金砷硫或金锑硫等复合配合物对金成矿的作用远不及Au〓和AuH〓SiO〓，有机配合物在温度较低的金的活化期有一定作用。

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。

Soil Science Department, Rothamsted Research, Harpenden, Hertfordshire AL5 2JQ, U.K., School of Earth and Space Science, University of Science and Technology of China, Hefei, Anhui 230026, China, and School of Biological Sciences, University of Aberdeen, Cruickshank Building, St. Machar Drive, Aberdeen, AB24 3UU, U.K.

在发表于8月1日出版的《环境科学与技术》的一篇论文中，英国洛桑研究所的赵方杰及其同事比较了淹水种植的水稻与旱作种植的水稻之间的砷水平，淹水种植水稻是南方国家最传统的耕作方法，而旱作种植水稻则指的是不把水稻根部浸于水中的做法。

A novel lightly-doped channel approach for linearity improvement of InGaP/InGaAs pseudomorphic high-electron-mobility transistor device was presented. Light doping in the channel region of the conventional δ-doped InGaP/InGaAs PHEMT was adopted to provide a uniform and symmetric electron distribution in the channel region to achieve flat extrinsic transconductance distribution under different gate bias conditions.

本次实验在传统矽平面掺杂元件结构的通道区域中加入微量的杂质浓度掺杂，使得电子在元件通道层中的分布更为均匀及对称，以期望在不同的闸极偏压条件下得到较为平坦的转导值分布曲线，改善磷化铟镓/砷化铟镓假晶式高电子迁移率电晶体的线性度表现。

Methylated trivalent metabolites that are potent cytotoxins, genotoxins and enzyme inhibitors may contribute to the in vivo therapeutic effect of iAs〓.

甲基化的三价砷代谢产物具有更强的细胞毒性，基因毒性和对酶活性的抑制，并可能对As〓O〓在体内的治疗起了一定的作用。

Possibilities include altering farm practices--growing paddy rice in raised beds, for instance--and engineering rice plants to shed arsenic.

可能采取的措施包括改变农场的做法，例如：在凸起的培育床上种植水稻以及采用遗传工程学的方法去除其中的砷等。

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。