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resultant force相关的网络例句

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与 resultant force 相关的网络例句 [注:此内容来源于网络,仅供参考]

As to the high polarity, high boiling point resultant—trimesic acid, the analysis methods of infrared spetrum, gas chromatography-mass spectroscopy, vapour-phase chromatography, acid number titration and so on are seperately used to characterize its property. Infrared spetrum and gas chromatography-mass spectroscopy are used to have a qualitative analysis on the resultant and are compared with the stand diagram. Sulfuric acid-methanol esterification and rapid esterification are used to prepare the trimesic acid trimethyl-ester and have a FID quantitative analysis. So that we make sure the purity of trimesic acid in the resultant and also we have an acid alkali titration on the resultant to get its acid number, in order to verify the purity of trimesic acid in the resultant.

对于高极性、高沸点的固体产物均苯三甲酸,分别采用红外光谱、气质联用、气相色谱、酸值滴定等分析手段进行了表征:利用红外光谱、气质联用的方法进行产物的定性分析,并与在同一仪器、同一条件下做出的标准谱图进行比对;采用硫酸-甲醇酯化法和快速酯化法制备出均苯三甲酸三甲酯,对其进行气相色谱FID定量分析,进而确定固体产物中均苯三甲酸的纯度;用酸碱滴定法确定固体产物的酸值,以对固体产物中均苯三甲酸的纯度进行验证。

Dealcoholization temperature markedly influences the surface area and porosity of the resultant MAO-supports. When the support was pretreated at lower or higher temperature, the corresponding MAO-support shows very low surface area;2.XRD and IR analyses indicate that MAO has reacted with the residual ethanol in the supports, which is an important manner to get MAO fixed on the carrier. Morever, XPS analyse indicates that MAO can also be coordinated with MgCl_2, which is another way to get MAO fixed on the support;3.ICP and EDX analyses indicate that dealcoholization temperature not only determined the element content on the solid catalyst, but also influences the element distribution on the carrier;4.The activities of the supported phenoxy-imine catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature. The support (MSP-5) obtained by treating MgCl_2·2.56C_2H_5OH at 160℃for 4 h, then modified by MAO is very effective for immobilizing complex 3, the resultant solid catalyst (MSPC-5) shows very high activity in ethylene polymerization, and its kinetics of polymerization is stable during the reaction process. Finally, PEs with spherical morphology and high bulk density (over 0.35g/ml) were obtained, without reactor fouling;5.In this work, polymerization conditions such as alkylaluminums, Al/Zr ratio, temperature and H_2 had a pronounced effect on the activity of MSPC-5 and properties of PE;(3). New MgCl_2-Supported Single-Site Catalysts for Ethylene PolymerizationIn this work, a kind of new MgCl_2 support was obtained by anhydrous MgCl_2 co-milled with solid MAO, and it is a creative contribution. Then some single-site catalysts were supported on the new MgCl_2 support, and the resulted solid catalysts were tested in ethylene polymerization, the results indicated that:1.XRD and IR analyses indicate that MAO does be coordinated with MgCl_2, which is in good agreement with the results obtained by XPS;2.co-mlling time had no obvious effect on the texture of support after 12 hours;3.In this work, MgCl_2 was co-milled with solid MAO for different hours, and then complex 3 was supported on these co-milled supports. It was found that co-milling time markedly influences the activity of solid catalysts, but it had negligible effect on the kinetic profile and the properties of resultant PE.

XPS研究结果表明,MAO不仅仅只和乙醇作用,MAO还与MgCl_2本身有一定的作用,这是一个极为重要的发现;3、通过ICP和EDX表征,发现载体的脱醇温度直接影响着元素在固体催化剂中的含量及分布;4、脱醇温度极大地影响着负载苯氧基亚胺类催化剂的活性和聚合物的性能,特别是原始载体经160℃活化4小时制备得到的固体催化剂MSPC-5的活性明显高于其他脱醇温度条件下制得的固体催化,并且催化剂寿命长,表现出稳定的动力学行为,最终获得了高堆密度(大于0.35g/ml)的球形聚乙烯颗粒;5、本文选择MSPC-5为研究对象,考察了聚合反应参数对催化剂的活性及其聚合物的影响,研究发现:不同的烷基铝对催化剂具有非常重要的影响,特别足TIBA对MSPC-5的助催化活性最高,烷基铝的加入量有一个较佳值,聚合温度为80度时活性最高,H_2的加入使催化剂的活性明显降低且聚合物的分子量也减小;、新型氯化镁载体负载单活性中心催化剂催化乙烯聚合本文创造性采用固体MAO与无水氯化镁直接进行共研磨,制备出了一种的新型的氯化镁载体,并将该载体用于多种单活性中心催化剂的负载化研究,研究表明:1、通过BET、XRD的表征,再次证实了MAO与MgCl_2之间具有直接作用,与XPS的研究结果相一致;2、当研磨时间高于12小时时,延长研磨时间对载体的结构没有显著的影响;3、将配合物3负载于共研磨时间不同的一系列载体上,乙烯聚合结果表明,尽管共研磨时间对负载催化剂的活性具有明显的影响,但是它对聚合物的性能以及催化剂的影响不明显。

Dealcoholization temperature markedly influences the surface area and porosity of the resultant MAO-supports. When the support was pretreated at lower or higher temperature, the corresponding MAO-support shows very low surface area; 2.XRD and IR analyses indicate that MAO has reacted with the residual ethanol in the supports, which is an important manner to get MAO fixed on the carrier. Morever, XPS analyse indicates that MAO can also be coordinated with MgCl_2, which is another way to get MAO fixed on the support; 3.ICP and EDX analyses indicate that dealcoholization temperature not only determined the element content on the solid catalyst, but also influences the element distribution on the carrier; 4.The activities of the supported phenoxy-imine catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature. The support (MSP-5) obtained by treating MgCl_2·2.56C_2H_5OH at 160℃for 4 h, then modified by MAO is very effective for immobilizing complex 3, the resultant solid catalyst (MSPC-5) shows very high activity in ethylene polymerization, and its kinetics of polymerization is stable during the reaction process. Finally, PEs with spherical morphology and high bulk density (over 0.35g/ml) were obtained, without reactor fouling; 5.In this work, polymerization conditions such as alkylaluminums, Al/Zr ratio, temperature and H_2 had a pronounced effect on the activity of MSPC-5 and properties of PE;(3). New MgCl_2-Supported Single-Site Catalysts for Ethylene Polymerization In this work, a kind of new MgCl_2 support was obtained by anhydrous MgCl_2 co-milled with solid MAO, and it is a creative contribution. Then some single-site catalysts were supported on the new MgCl_2 support, and the resulted solid catalysts were tested in ethylene polymerization, the results indicated that: 1.XRD and IR analyses indicate that MAO does be coordinated with MgCl_2, which is in good agreement with the results obtained by XPS; 2.co-mlling time had no obvious effect on the texture of support after 12 hours; 3.In this work, MgCl_2 was co-milled with solid MAO for different hours, and then complex 3 was supported on these co-milled supports. It was found that co-milling time markedly influences the activity of solid catalysts, but it had negligible effect on the kinetic profile and the properties of resultant PE.

XPS研究结果表明,MAO不仅仅只和乙醇作用,MAO还与MgCl_2本身有一定的作用,这是一个极为重要的发现; 3、通过ICP和EDX表征,发现载体的脱醇温度直接影响着元素在固体催化剂中的含量及分布; 4、脱醇温度极大地影响着负载苯氧基亚胺类催化剂的活性和聚合物的性能,特别是原始载体经160℃活化4小时制备得到的固体催化剂MSPC-5的活性明显高于其他脱醇温度条件下制得的固体催化,并且催化剂寿命长,表现出稳定的动力学行为,最终获得了高堆密度(大于0.35g/ml)的球形聚乙烯颗粒; 5、本文选择MSPC-5为研究对象,考察了聚合反应参数对催化剂的活性及其聚合物的影响,研究发现:不同的烷基铝对催化剂具有非常重要的影响,特别足TIBA对MSPC-5的助催化活性最高,烷基铝的加入量有一个较佳值,聚合温度为80度时活性最高,H_2的加入使催化剂的活性明显降低且聚合物的分子量也减小;、新型氯化镁载体负载单活性中心催化剂催化乙烯聚合本文创造性采用固体MAO与无水氯化镁直接进行共研磨,制备出了一种的新型的氯化镁载体,并将该载体用于多种单活性中心催化剂的负载化研究,研究表明: 1、通过BET、XRD的表征,再次证实了MAO与MgCl_2之间具有直接作用,与XPS的研究结果相一致; 2、当研磨时间高于12小时时,延长研磨时间对载体的结构没有显著的影响; 3、将配合物3负载于共研磨时间不同的一系列载体上,乙烯聚合结果表明,尽管共研磨时间对负载催化剂的活性具有明显的影响,但是它对聚合物的性能以及催化剂的影响不明显。

In this paper the conflicting discussion of scholastic view-point on seepage force which has lasted many years is stated. Then the physical concept of seepage force and its related forces including the resolved two components (a seepage force and a buoyant force) from seepage resultant force, the transformation between the seepage force and boundary pore water pressures, schematic diagram of forces acting on unit soil mass and the mathematic proof by Green theorem are described.

追述了多年来对渗透力学术观点的争论,并再就此问题论述了渗透力的物理概念及其与之相关的各力(包括渗流作用合力及其分解成的两个分力,渗透力与周边孔隙水压力的转换关系及各力作用在单位土体的图示;从数学上引用格林公式,证明土体表面水压力与土体本身渗透力之间的转换关系。

If only the interatomic force are considered, atomic stress amounts to the potential density in the resultant force field generated by the neighboring atoms, and atomic elastic constants equals to the potential density increment in the same resultant force field.

如果只考虑原子间作用力的影响,原子应力等于该原子在周围邻域原子合成张量力场中的势能密度,原子弹性常数等于发生单位应变时原子在邻域原子合成力场中势能密度的增量。

So say American film society to sue fast thunder can additional purposeful, these year western country always censures China in intellectual property domain, because,force of fire of before a few years of Zhuhai is sued by SIGMATEL of provider of American MP3 chip also is intellectual property, the swift and violent development that real reason is Zhuhai fire force truly has browbeaten SIGMATEL, the intellectual property case that SIGMATEL prosecutes Zhuhai fire force also is absent MP3, and in domain of power source power comsumption, allegedly the period of time of to lodge a complaint, the client of force of many Zhuhai fire converts SIGMATEL, because,very simple everybody does not consider the matter the lawsuit ask for trouble of Zhuhai fire force, this just also is the real reason that SIGMATEL sues Zhuhai fire force, do sth over and over again prosecution of two years is Zhuhai fire force as a result eventually most reconcile in both sides of Shenzhen countercharge SIGMATEL, the judgement that the market share of force of final Zhuhai fire exceeds SIGMATEL to became the MP3 chip provider with the greatest whole world to also prove SIGMATEL is original and be anxious.

这么说来美国电影协会起诉迅雷只能另有目的,这些年西方国家总是在知识产权领域指责中国,前几年珠海炬力被美国MP3芯片提供商SIGMATEL起诉也是因为知识产权,真正的原因确是珠海炬力的迅猛发展已经威胁到SIGMATEL,SIGMATEL起诉珠海炬力的知识产权案也不在MP3,而在电源功耗领域,据说提起诉讼的一段时间,大量珠海炬力的客户都转投SIGMATEL,原因很简单大家都不想因为珠海炬力的官司惹火上身,这也才是SIGMATEL起诉珠海炬力的真正原因,折腾了两年的起诉最终结果是珠海炬力在深圳反诉SIGMATEL双方和解,最后珠海炬力的市场份额超过SIGMATEL成为全球最大的MP3芯片提供商也证实了SIGMATEL最初的判定和担忧。

The paper consists of following contents:(1)starting with a historicalreview of the use-of-force,this paper reveals a paradoxical evolvementof the two trends in use-of-force,compares the absolutization andinfinity with controllability and finity of the use-of-force,and clarifiesnew characteristics of the use-of-force in post-Cold War era;(2)bysystematically analyzing the era background from the viewpoints ofeconomic globalization,political multipole,military high tech,national separatism and the hegemonism,the paper clarifies factorslimiting and stimulating the use-of-force;(3)by analyzing the lawbackground mainly from the viewpoint of international laws,the paperespecially centralizes the discussion on restrictions made by moderninternational laws on the use-of-force and their limits,dissects thechallenges brought up by the high tech war to international laws;(4)the use-of-force by UN and other regional international organization;(5)refuting the theory of"humanitarian intervention"advocated bythe USA and certain western countries,the paper expatiates the rightrelations between human rights and sovereignty,and demonstrates therightness of the sovereignties and UN;(6)the basic guidelines of theuse-of-force in the post-Cold War era.

分别从经济全球化、政治多极化、军事高技术化以及民族分离主义的泛滥、霸权主义的恶性膨胀等方面系统分析冷战后武力使用的时代背景,揭示出冷战后时代同时存在的限制、约束武力使用的因素,以及诱发、刺激武力使用的因素。(3)主要从国际法的角度分析武力使用的法律背景,着重探讨现代国际法对武力使用的规范和制约作用以及这种作用的有限性,同时剖析现代高技术战争对国际法提出的挑战。(4)主要探讨联合国以及区域性国际组织在冷战后使用武力的实践以及存在的问题。(5)驳斥以美国为首的某些西方国家所鼓吹的&人道主义干涉&论,阐述人权与主权的正确关系,论证主权国家和联合国并没有过时,不能用非人道手段解决人道主义问题。(6)系统提出了冷战后国家间使用武力应遵守的基本准则。

We want to move up ticklish Stone, the facilities of the moment will be greater than the force of gravity produced by a rock moment, we all know that the moment arm of force multiplied by the force equal to the size of the arm of force as an arm of force in the greater 2 , Finger pressure, the more gravity than, stone ticklish ticklish point of this very long arm of force, so we used a very small force so that the stones will be able to move up.

我们要想让怕痒石动起来,所施的力的力矩就要大于石头重力所产生的力矩,我们都知道力矩等于力臂乘以力的大小,当力臂2越大于力臂1时,手指压力也就越小于重力,怕痒石怕痒的这个点的力臂非常长,所以我们用很小的力就能使石头动起来。

The force is dominated by entropy force when the chain isdeformed less than 0.9 of the full-extended chain, while by enthalpy force. Theenthalpy force is contributed by the intro-molecular interaction. Bond stretchcontributes to the force more than bond angle bend. Torsion and VDW contributelittle to the force.3. The internal energy contribution to the elastic force It is in dispute that whether 〓 is dependent on the strain, and it is hard toresolve the problem using present elastic theories because they are athermal.

我们模拟了聚乙烯模型聚合物的SMFS,研究了链长、势能有效距离和温度对力谱的影响,探讨了力谱的本质问题,得到以下结果:改进的分子动力学方法可以很好的模拟聚合物的SMFS;SMFS是链段的性质而不是整个高分子链的性质,对于聚乙烯,该链段碳原子数目大于40;SMFS的本质是熵弹性,形变小于全伸直链的0.9时,力为熵弹力;形变超过全伸直链的0.9时,能弹力占主导地位,这种能弹力完全是分子内相互作用引起的,是由键伸缩和键角弯曲贡献的。3。

The dynamic equations of the 6-DOF platform are presented by applying Newton-Euler method. At the same time the concepts of transition matrixes of the resultant force vector and the resultant moment are introduced.

并应用牛顿----欧拉法建立了转台的动力学方程式,给出了主矢变换矩阵和主矩变换矩阵的概念,并对转台动力学特性进行了研究。

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