查询词典 negative catalyst

Points of knowledge: To know the definition, performance, category and preparation of solid catalyst; characteristic of solid catalyst, basic course of gas-solid catalytic reaction, physical construction of catalyst; to understand the derivation of intrinsic kinetics of gas-solid catalytic reaction by using the Langmuir 's adsorption isothermal line.

知识要点：了解并掌握固体催化剂的定义、性能要求、种类和催化剂的制法；固体催化剂的特性，气-固相催化反应进行的基本过程，催化剂的物理结构；掌握朗哥缪尔吸附等温线推导气固相催化反应本征动力学的方法。

The catalyst support contains at least 20% by weight of TiO2 being present mainly in the anatase form. Furthermore, the catalyst support contains diatomaceous earth in an amount of at least 2% and less than 80% by weight of the catalyst support.

催化剂载体含有至少20重量％的主要以锐钛矿型存在的TiO2，而且催化剂载体中含有至少为2重量％，且小于80重量％的硅藻土，以催化剂载体重量计。

By Tyndall effect, electronic microscopic and super-filtering experiments, it was proved that V3-Al2Cl catalyst is a colloidal catalyst in butadiene-containing toluene solvent, which belongs to a multiphase catalyst. The diameters of the catalytic particles are from 1 nm to 100 nm, and the active sites are on the surface of the amorphous colloidal particles.

通过Tyndall效应、电镜观察和超过滤实验，证明了在溶有丁二烯的甲苯溶剂中V3-Al2Cl催化体系以小颗粒分散，粒径在1～100 nm之间，为胶体催化剂，属于高度分散的多相催化体系。

By comparing the dehydration methods of three catalytic esterification reactions and the catalysts used under negative pressure, the better method of synthesizing 2 ethylhexyl chloroacetate is using stannous oxide as catalyst under negative pressure.

通过对三种催化酯化反应的脱水方法及负压下使用不同催化剂的比较和选择，提出了以氧化亚锡为催化剂负压脱水合成氯乙酸2乙基己酯的方法。

The direct removal of coal ash by the negative pressure generated by a negative pressure fan,features less investment,simple system,simultaneous carriage and sorting ,and good airtightness,but its stability is poor,and it causes serious wear of pipeline and negative pressure fan as well.

负压取灰是利用负压风机所产生的负压将干灰直接取出的一种取灰方式，具有投资小、系统简单、可以同时实现输送和分选及密闭性好等优点，但是稳定性比较差，对管道和负压风机磨损较为严重。

The final results of empirical studies give as follows: the ownership of China institutional investors is negative to debt-asset ratio in the down range, positive to asset turnover ratio in the raise interval, positive to company size, earnings per share, and return on investment, negative to book-to-market rate, and in the later negative to the exchange rate and market risk.

最终实证研究结果为：中国机构投资者持股比例与资产负债率在股指下降时负相关，与资产周转率在股指上升时正相关，与公司规模、每股收益、投资回报率正相关，与账面市值比负相关，在后期与换手率、市场风险负相关。

There were only 5 cases negative for SYT-SSX genomic by seminested PCR, which were positive for SYT-SSX mRNA by RT-PCR. Three cases of synovial sarcoma negative for SYT-SSX mRNA were also negative for SYT-SSX genomic DNA. One case of synovial sarcoma was positive for SYT-SSX1 genomic DNA by seminested PCR, which can not be distinguished for SYT-SSX fusion type by RT-PCR.

只有5例SYT-SSX mRNA呈阳性而半巢式PCR SYT-SSX DNA检测呈阴性。3例RT-PCR检测SYT-SSX mRNA呈阴性者半巢式PCR亦为阴性结果。1例RT-PCR方法无法确定融合基因类型的病例SYT-SSX DNA检测为SYT-SSX1型。

At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.

其中，主要进行了以下几方面的工作：针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响，而非声波在空气中传播的速度，本文利用能量守恒原理，对其进行了修正；考虑到管内气体流速对压力波速的影响，对原始的负压波定位公式进行了一定程度的改进，并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法，提高了系统的定位精度；利用小波变换的多分辨率分解和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了降噪处理；并利用小波变换技术对信号奇异点的快速、准确的识别能力，对经上述消噪后的负压波信号进行了奇异点捕捉，精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度，从而进一步提高了定位的精度；考虑到小波变换是一种基波可变的信号分析工具，也就是说，不同的小波基波对信号分析的结果将有很大差别，这势必影响最终的处理结果，因此，我们又对比分析了本课题中小波基及尺度的选择问题，依据规则性系数相似性原理对母小波的选择进行了探索性研究；最后，还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。

Spell-Like Abilities: At will - animate dead, blasphemy, cause fear, chaos hammer, clairaudience/clairvoyance, charm person, comprehend languages, create greater undead, create undead, darkness, death knell, death ward, deeper darkness, desecrate, destruction, detect chaos, detect law, feeblemind, greater dispelling, harm, fear, lightning bolt, magic circle against law, major image, polymorph any object, polymorph self, project image, pyrotechnics, read magic, scrying, slay living, symbol, telekinesis, teleport without error (self plus 1000 pounds), unhallow, unholy aura, unholy blight, wail of the banshee, wall of fire; 6/day - enervation, horrid wilting, implosion, negative energy burst, negative energy ray, negative energy wave, persistent image, shatter; 3/day - power word: kill, power word: stun; 1/day – bestow greater curse, hellball, shapechange, soul shackle, spirit wall, stop heart, time stop; 1/week - absorb strength, crushing fist of spite, evil weather, gut wrench, imprison soul, wrack.

类法术能力：随意使用：活化尸体，降咒，恐惧诅咒，混沌战锤，锐耳/鹰眼术，魅惑人类，通晓语言，创造大型不死生物，创造不死生物，黑暗术，死亡丧钟，防死结界，深度黑暗术，猥亵术，毁灭术，侦测混乱，侦测秩序，弱智术，强化解除魔法，伤害术，恐惧术，闪电术，反秩序法阵，变形万物，变化自身，投影术，烟火术，解读魔法，占卜术，生灵必杀，法印术，心灵致动，无错传送（自身家1000磅物品），邪居，邪恶灵光，邪影击，女妖之嚎，火墙术；每天6次：虚弱术，恐怖枯萎术，内爆术，负能量脉冲，负能量射线，负能量波浪，永久幻象，粉碎术，每天3次：真言术：灭，真言术：定；每天1次：强力降咒术，地狱球，变形术，灵魂枷锁，灵魂之墙，心脏骤停，时间停止；每周一次：吸收力量，困扰之拳，邪恶天候，内脏绞痛，囚禁灵魂，灾难术。

Results In 585 staphylococcus, there were 406 staphylococcus aureus, which including 387 methicillin sensitive staphylococcus aureus and 19 methicillin resistant staphylococcus aureus. And there were 179 coagulase negative staphylococcus, including 20 methicillin sensitive coagulase negative staphylococcus and 159 methicillin resistant coagulase negative staphylococcus.

结果 585株葡萄球菌中，金黄色葡萄球菌406株，其中甲氧西林敏感的SA387株，甲氧西林耐药的SA19株；凝固酶阴性的葡萄球菌179株，其中甲氧西林敏感的CNS20株，甲氧西林耐药的CNS159株。

For every one of my New Year resolutions, I have been a backslider for years.

说到我的新年决心，我每年都做

With empathy and focus on a feeling level, we can all relate to the common ground of mutuality of emotions.

有了同情心和感觉上一级的重点，我们都可以涉及到相互的情感共同点。