查询词典 hydrogen cyanide

A highly effective screening model was built, in which enrichment was conducted by adding a definite amount of cyanide into the innutrient medium. Forty-nine kinds of cyanide-resistant strains were isolated from twenty samples of soil, among which twenty-nine kinds of strains showed the cyanide-degradation ability and the bacterial strain numbered DC02 was the best.

构建筛选模型，通过施加选择压力，即在一相对贫乏的培养基中加入一定量的氰化物来进行富集，从20份土壤中筛选出49株耐氰菌，29株具有降氰活性，其中菌株DC02降氰效果最佳。

Properties : White crystallization or powder , proportion 1.735 , melting point is 287 ℃, apt to dissolve in water , ethanol and propanone , aqueous solution is neutral , turn into the blood red sulphur cyaniding iron with molysite , reactionless with inferior molysite, salt function turns into dark blue sulphur cobalt cyanide, turn into white sulphur silver precipitating or black sulphur copper cyanide cyanide to precipitate with the silver salt or copper salt function with cobalt.

白色结晶或粉末，比重 1.735 ，熔点 28 7 ℃，易溶于水、乙醇和丙酮，水溶液呈中性，与铁盐生成血红色的硫氰化铁，与亚铁盐则无反应，与钴盐作用生成深蓝色的硫氰化钴，与银盐或铜盐作用生成白色的硫氰化银沉淀或黑色的硫氰化铜沉淀。

Corrosion rate of non-cyanide cadmium coatings is similar to cyanided ones. It is considered that non-cyanide cadmium coatings can be used for four types of cli- mates instead of cyanide coatings in case of some conditions.

无氰镀镉层的腐蚀速率与氰化镀镉接近，可以认为在一定条件下无氰镀镉能够代替氰化镀镉工艺用于上述4种典型的大气环境的腐蚀防护。

Process development for the gold concentrate roasting- cyanide leaching in China;2. The feasibility study of extracting gold by liquid membrane techuique from the pulp of cyanide leaching ;3. Discussion on the cause of low silver leaching rate taken place in gold and silver cyanide leaching and ways to increase it

加强充气搅拌预氧化可将含金硫化矿在磨矿过程中产生的、对氰化浸出有害的难免离子氧化成对氰化浸出无害的离子，同时在磁黄铁矿和白铁矿颗粒表面生成Fe3薄膜，阻止了它们的进一步溶解，从而大大提高了金银的氰化浸出率。

The invention provides an anhydrous hydrogen fluoride production process; reaction raw materials fluorite powder and sulfate are mixed by an external mixer and enter into a converter with jacket; hot air with the temperature of 350 DEG C to 600 DEG C is fed in the jacket; the fluorite powder and the sulfate have chemical reaction and produce hydrogen fluoride; the produced hydrogen fluoride enters into a scrubber from a furnace header to be washed; the washed hydrogen fluoride enters into an intermediate tank from a condenser, and then receives distillation and degasification to prepare the finished product anhydrous hydrogen fluoride; solid residue is emitted from a furnace tail.

本发明提供一种无水氟化氢生产工艺，反应原料萤石粉及硫酸经外混器混合后进入带有夹套的转炉，向夹套内通入350～600℃的热风，萤石粉和硫酸在发生化学反应生成氟化氢，生成的氟化氢气体由炉头进入洗涤塔进行洗涤，洗涤后的氟化氢由冷凝器进入中间槽，然后经过精馏、脱气制得成品无水氟化氢；固体残渣由炉尾排出。

In this paper, the current states of research about the basic theory of harmonic oscillator and hydrogen atom in quantum mechanics are firstly reviewed. On base of it, and the relationships between harmonic oscillator and hydrogen atom in quantum mechanics are studied. By use of the relationships between the hermite polynomial and the laguerre polynomial, the eigenequations of one-dimensional harmonic oscillator and hydrogen atom are conversed into the same equations in form. Therefore the relationships between energy levels and wave functions of one-dimensional harmonic oscillator and hydrogen atom are found. Through the coordinates transform, the relationships between energy levels and wave functions of two-dimensional harmonic oscillator and hydrogen atom are found.

首先综述了谐振子与氢原子的基本理论的研究现状，并在此基础上对谐振子与氢原子的关系展开了研究，通过厄密特方程与拉盖尔方程的相互转化，将一维谐振子与一维氢原子的本征值方程转化为相同形式的方程，从而比较得出它们能量及波函数间的关系，并通过坐标变换将直角坐标系下二维氢原子的本征值方程转化成与曲线坐标系下二维谐振子的本征值方程相同的形式，从而得出二维氢原子与二维谐振子的能量及波函数的关系。

The present invention relates to compounds of formula wherein R is hydrogen, lower alkyl, lower alkoxy, halogen or lower alkyl substituted by halogen; R is hydrogen or halogen; or R and R are together with the carbon atom to which they are attached -CH=CH-CH=CH-; R is hydrogen, lower alkyl, phenyl optionally substituted by halogen, or is hetaryl, optionally substituted by lower alkyl; R is hydrogen, lower alkyl, phenyl, benzyl, lower alkenyl, lower alkoxy, phenyloxy, benzyloxy, S-lower alkyl, halogen, CN, lower alkyl substituted by halogen or O-lower alkyl substituted by halogen; R is hydrogen or lower alkyl, aryl is phenyl or naphthyl; n is 1, 2 or 3; m is 1 or 2; and pharmaceutically acceptable acid addition salts and tautomeric forms thereof.

本发明涉及式化合物及其可药用的酸加成盐和互变异构形式，其中R 1 是氢、低级烷基、低级烷氧基、卤素或被卤素取代的低级烷基；R是氢或卤素；或R 1 和R与它们连接的碳原子一起是-CH＝CH-CH＝CH-；R 2 是氢、低级烷基、任选被卤素取代的苯基或者是任选被低级烷基取代的杂芳基；R 3 是氢、低级烷基、苯基、苄基、低级链烯基、低级烷氧基、苯氧基、苄氧基、S-低级烷基、卤素、CN、被卤素取代的低级烷基或被卤素取代的O-低级烷基；R 4 是氢或低级烷基，芳基是苯基或萘基；n是1、2或3；m是1或2。

In this thesis,the AM1,MNDO,MINDO/3(mainly AM1)and INDO/S-CI semiempirical MO methods were used toinvestigate the excited-state intramolecular protontransfer reactions of salicylic acid derivatives—salicylic acid,methyl salicylate,salicylaldehyde,o-hydroxyaceto-phenone,salicylamide and 3-hydroxy-picolinamide (6 conformers and 2-3 anion species);2-(2'-hydroxy-5' methylphenyl) benzotriazole(4 conformers),2-(2' hydroxyphenyl) benzimidazole (3 conformers and 3anion species),Bis-2,5-(2-benzoxazolyl)hydroquinone(3 conformers),2-(2'-hydroxyphenyl)benzothiazole(2conformers) and 7-azaindole dimer (2 conformers).Theinvestigations were described as follows.Geometry optimization,relative stability andhydrogen bonding energy First,for sylicylic acid derivative molecules,the AM1,MNDO and MINDO/3 methods were used toinvestigate ground-state geometry optimization,energies,relative stabilities and hydrogen-bondingenergies on the five kinds of the molecules(designing 6 conformers and 2-3 anion species).Comparing with experimental data,the optimizedgeometry,the order of stability,the hydrogen-bonding energies and the distances between O-O in O-H..O hydrogen bonds by AM1 method were in agreementwith the experimental data,however,the C-C bondlengths optimized by MNDO and MINDO/3 were longer,C-O and O-H bond lengths were shorter;for C-N bondlengths,the results opitimized by MNDO method werethe same as those by AM1 method,nevertheless the C-Nbond lengths given by MINDO/3 method were muchshorter.For some sylicylic acid derivatives(e.g.methyl salicylate,salicylamide),the order ofstabilities on the conformers given by MNDO andMINDO/3 methods were not in agreement with theexisting conformers deduced by experimental methods,and the hydrogen bonding energies calculated by MNDO.and MINDO/3 methods were smaller.Second,the studyon the other systems found that the optimizedgeometry of the proton-transfered product with INDOmethod could not be obtained,only could theoptimized geometry of reactant be obtained,and thecalculated hydrogen bonding energies were greater.Many results of calculation indicated that the studyon the excited-state intramolecular proton transferreaction system using AM1 method was suitable andreliable.

本论文用AM1、MNDO、MINDO/3（主要是AM1）和INDO/S-CI半经验分子轨道方法对水杨酸衍生物系列——水杨酸、水杨酸甲酯、水杨醛、O-羟基乙酰苯酮、水杨酰胺和3-羟基吡啶酰胺（6种异构体和2-3种阴离子）；2-（2'-羟基-5'-甲基苯基）苯并三〓唑（4种异构体）；2-（2'-羟基苯基）苯并咪唑（3种异构体和3种阴离子）；2，5-二间氮杂氧茚氢醌（3种异构体）；2-（2'-羟基苯基）间〓杂硫茚（2种异构体）和7-〓吲哚二体（2种异构体）的激发态分子内质子转移反应在以下几个方面进行了较系统的理论研究：几何构型优化和相对稳定性及氢键能首先以水杨酸衍生物系列分子为例，用AM1、MNDO和MINDO/3方法考察了5种分子（每种分子设计6种异构体和2-3种阴离子）的基态几何构型优化，能量、相对稳定性和氢键能计算，通过和实验数据进行比较，AM1方法给出的优化几何构型、稳定性次序、氢键能和O—H。。。O氢键的0—0距离与实验数据吻合最好，MNDO和MINDO/3方法优化的C-C键长偏长，C-O键和O-H键长偏短；对于C-N键长，MNDO和AM1优化结果差别不大，而MINDO/3给出了过短的C-N键长，MNDO和MINDO/3方法给出的有些水杨酸衍生物分子（如水杨酸甲酯和水杨酰胺）异构体的稳定性次序和实验上推测的可存在异构体结果不一致，MNDO和MINDO/3方法给出的氢键能偏低，对其他体系的研究发现INDO方法常常不能得到质子转移产物的优化几何构型，只能得到反应物的优化构型，并且估算的氢键能偏高，大量的计算结果表明AM1方法对本论文研究的激发态分子内质子转移反应体系是适宜和可靠的。

The biological hydrogen is very important to solute the energy crisis and the environmental pollution. Our country works out the organic waste water zymotechnics biological hydrogen technology by the tired of oxygen active sludge and the organic waste water as produces raw material. It is proved by the experiment in HIT. This research was discovered first in our country and foreign and realized the experimental scale non-fossilization mold mushroom spawn for a long time to continue producing the biological hydrogen technology. It also realized the experimental scale continue to produce the hydrogen for a long time. It was a domain significant breakthrough in biological hydrogen.

生物制氢对于解决能源危机和环境污染都具有十分重要的意义，我国以厌氧活性污泥和有机质废水为生产原料的有机废水发酵法生物制氢技术在哈工大通过实验研究验证，该项研究在国内外首创并实现了中试规模连续非固定化菌种长期持续生物制氢技术，并实现了中试规模连续流长期持续产氢，是生物制氢领域的一项重大突破。

After it introduced the zymotechnics biology hydrogen technology technical process which was instructed under the ethyl alcohol fermentation biological hydrogen theory, it also elaborated the biological hydrogen water treatment automatic control system structure drawing and the control plan. It has carried on the detailed introduction to the lowest level entire production control process. It is including the mix regulating reservoir automatic control return route, the biological system hydrogen reactor temperature, the PH value control loop, the tired of the oxygen reactor temperature, the PH value control loop, need oxygen response pond control loop, sedimentation pond control loop, the biological hydrogen examination return route and so on..

在介绍了乙醇型发酵生物制氢理论指导下的发酵法生物制氢技术的工艺流程之后，又论述了生物制氢水处理自动控制系统的结构图和控制方案，并且对最底层的整个生产控制过程进行了详细介绍，包括了混合调节池自动控制回路，生物制氢反应器的温度、PH值控制回路，厌氧反应器温度、PH值控制回路，好氧反应池控制回路，沉淀池控制回路，生物制氢间氢气检测回路等等。

I'm going tor her!

我这就去救她！

As rise are design to help keep a several toney , a brain chemical at continues lever.

SSRI被设计来帮助保持血液中的复合胺即在大脑中一个连续水平的化学物质。