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by main strength相关的网络例句

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First, select four kinds of main risks source from bigly celebrate the main risk in region source, namely the flood, drought, sand-dust weather and petroleum pollution accident, etc. According to the different a request for to habitat, study this 19 kinds of landscapes ecosystem type of the Regional induce for 7 kinds of ecosystems system: Then the marsh of bulrush, lakes and reservoirs , salt alkali wasteland, prairie, island form wood, farmland, town. The difference is proceeded by characteristic according to each type ecosystem to the analysis of four kinds of main risks source, including the certain risk all rate, delimiting the space distribute, analyzing the risk strength to the receptor etc. At proceed the revelation the different from endanger to analyze the inside, this text borrows ecosystem index number that this index sign to reflect primarily habitat the ecosystem meaning of the type of habitat the different from position, with weak an index number to show the destructibility of the habitat, from but compute each ecosystem that is lost by ecosystem system an index number.

首先,从大庆地区主要的风险源中遴选出四种主要的风险源,即洪涝、干旱、沙尘天气和石油污染等;依据不同生物类群对生境的要求,将本研究区域的19种景观生态类型归纳为7种生态系统:即芦苇沼泽、湖泡库渠、盐碱荒地、草甸草原、岛状林、农田、城镇;对四种主要风险源的进行分析,包括确定风险概率,划定空间分布,对风险受体的作用强度分析等;在进行暴露和危害分析中,本文主要借生态指数这一指标来反映不同生境类型的生态意义和地位,以脆弱度指数来体现不同生境的易损性,从而计算出各受体生态系统的生态损失度指数;由于各主要风险物质对风险受体的作用强度是不同的,对形成区域性生态风险的作用大小也有差异,因此本文采用层次分析法对主要生态风险物质进行综合评价,并把判断矩阵排序权值的合理计算问题归为—非线性化问题,并提出用基于遗传算法(GA[5])的层次分析模型进行权重分析;进行风险表征,即综合前面两个阶段的信息,对环境中风险的性质和强度以及风险评价过程中不确定性问题进行分析与描述,并划分出五级生态风险区;最后,根据划分的五级生态风险区的特征,分别提出针对各生态风险区的生态风险管理对策。

Based on electro-characteristic and double electric layers models, directional mechanisms of soy protein molecular are analyzed for the first time on DC heating condition. After the main factors which effect soy protein gels transparency and strength being studied on DC heating condition, the different affects on soy protein gels transparency and strength by DC heating and water bath heating are analyzed and compared, and the transparent mechanisms of soy protein gels are further explored. In addition to temperature action as water bath heating, DC heating is added as electric field directional action. As a results, heating rate is increased. Directional range degrees of soy protein molecules are raised. These advantage the increase of soy protein gels transparency and strength. Microstructures of soy protein gels forming on DC heating condition are observed by SEM and the results showed that ordered structure of transparent soy protein gels on DC heating condition is more ordered than that of transparent soy protein gels on water bath heating condition.

首次从大豆蛋白的电特性和双电层模型上分析了直流电加热条件下,大豆蛋白分子定向的机理;通过对直流电加热条件下影响大豆蛋白凝胶透明性和强度主要因素的研究,分析和比较了直流电加热与水浴加热对大豆蛋白凝胶透明性和凝胶强度的不同影响,又进一步探讨了大豆蛋白凝胶透明的机理;直流电加热除了水浴加热中的温度作用以外,又增加了直流电场的定向作用,提高了加热速率,提高了大豆蛋白分子定向排列的程度,有利于蛋白质凝胶透明性和强度的提高;利用SEM对电场下大豆蛋白凝胶微观结构的观察,进一步证明了直流电加热比水浴加热形成的透明大豆蛋白凝胶微观结构具有更高的有序性。

The main results of the investigation are as following:(1) Some important criteria for the design of multi-layer structure are acquired: the ratio of the layer thickness to the contact diameter should be controlled to a value about 0.8; increasing the number of the gradient layers and elasticity modulus of the top layer would benefit to the yield strength and the stress status at the interface.(2)By means of molecular dynamics simulations for a indentation and sliding process, it is discovered that dislocations of 45 direction to the surface occur in the surfaces layer, which is correspond to the direction of the plastic flows observed in the macroscopic continuous medium. The irreversible deformation caused by the dislocation and the atom piles at the surface are responsible for the irreversibility of the force response. They are also the main factors for the friction generation. The temperature and the indentation velocity have significant effects on the deformation behaviors of the material of the surface layer. The yield strength would increase obviously if the indentation velocity is greater than 10 m/s.(3)A method to evaluate the fracture toughness of coating by estimating the crack-density functionβof a Wicker''s indentation was proposed. Meanwhile a new surface treatment technology was developed using non-equilibrium plasma.(4)A MD-FE hybrid method and corresponding software was developed to analysis the tribological behaviors for multiplayer system.

研究主要内容和结果有:(1)得到指导梯度膜设计的几个准则:控制膜层厚度与接触半径比在0.8左右为宜;适当增加梯度层层数和顶层弹性模量,有利于提高抗屈服能力和改善界面处的应力状态;(2)通过对嵌入和滑动摩擦过程的分子动力学模拟,发现表层产生一个与宏观连续介质的塑性流动方向观测一致的45 方向位错;位错造成的不可逆变形和表面的原子堆积,是力的响应不可逆性的原因,也是构成摩擦力的主要因素;温度和嵌入速度对材料变形特性有显著的影响,当嵌入速度大于10 m/s时,屈服强度明显增加;(3)提出压痕裂纹密度系数β半定量判定膜层断裂韧性的方法;并开发出表面强化新工艺;(4)开发出分析表面摩擦学特性的MD-FE复合模拟方法和相应模拟软件。

In the numerous extension patterns, the government leading extension pattern is the strongest, quicker, and the extension area is larger, but the extension system should be further strengthened, and the policy supports should be given by the government. The extension pattern with the research institutes as the main body is strict and scientific, and is welcomed by the peasants, but the extension strength is weak. The extension pattern with the companies as the main body has the advantage in the extension area, and is a new pattern, but the service consciousness of the agricultural fertilization should be strengthened. The extension pattern with the supply and marketing cooperative as the main body has the advantage of retailing fertilizers, but the technical training to the vocational staff should be strengthened. In the extension pattern with the chain radiation as the main body, the activity of the peasants is higher.

研究表明,在众多的推广模式中,政府主导型推广模式的推广力度最大,推广速度较快,推广面积也较大,但是推广体系应进一步强化,政府应给予政策上支持;以科研单位为主体的推广模式严谨、科学,受到农民的欢迎,但推广力度小;以公司为主体的推广模式在推广面积上有一定优势,是一支新生力量,但应强化农化服务意识;以供销社为主体的推广模式具有分销肥料的优势,但应对该系统的业务人员加强技术培训;以连锁辐射为主体的推广模式中,农民积极性高;以科研+公司+推广+农户为主体的(来源:ABC论文5b网www.abclunwen.com)推广模式在推广面积、农民的积极性均有一定优势,它能把几大部门的利益集中在一起,取长补短,以共同促进平衡施肥的发展。

The cuspidine is all long known as the main factor leading to the low strength o the sinter bearing fluorine, But with the fluorine decreasing by a wide margin, the strength of the sinter bearingfluorine get lower. So, the first work is to fine out the reason to cause the strength low.

含氟烧结矿中的枪晶石一直被认为是制约包钢烧结矿强度的主要因素,但随着含氟量的大幅度降低,烧结矿的强度却进一步恶化,因此,弄清影响低氟烧结矿强度的原因是提高烧结矿强度的前提和基础。

A high-strength steel pipe rockbolt has an expansive rockbolt main body prepared by processing a high-strength steel sheet of 1.8-2.3 mm in thickness with tensile strength of 490-640 N/mm 2 and elongation of 20% or more to a welded pipe and roll-forming the welded pipe to a shaped pipe having one or more concavities extending along an axial direction.

高强度钢管锚杆具有可膨胀锚杆主体,该主体通过下列步骤制成:将抗拉强度为490~640N/mm 2 ,伸长率为20%或更大,厚1.8~2.3mm的高强度钢板加工成焊接管,再将该焊接管滚轧成型成具有一个或多个沿轴向延伸的凹部的异形管。

Based on measuring the diameter and friction coefficient of treated and untreated wool fibers, the principle of anti-pilling by using sol-gel technology was explained Besides above, anti-pilling finishing by using cross-linking agent for low twist knitted cotton fabric was also researched in this paper. Due to the strong damage to the strength of the knitted cotton fabric (bursting strength retention rate is 55%) by citric acid treated, main researching focus was on the application of SDP resin. The optimizing treating condition was selected from the results of the orthogonal experiment.

针对单独使用柠檬酸处理时织物强力损伤较大(顶破强力保留率55%)的问题,重点研究了SDP交联树脂处理时各个工艺因素的影响,通过正交实验,筛选出了最佳处理工艺,此工艺下处理的棉针织物的起毛起球等级可以提高1.0-1.5级,其顶破强力保留率达到60%-65%。

By employing the Jordan-Wigner transformation and a modified mean field method, we are able to determine its ground-state quantum phase diagram approximately. The chapter IV is the main part of this Thesis. It contains the main innovations in our work. We propose and study in detail a S=1 Ising chain with the interplay of single-ion anisotropy and dimerization. The main results and innovations are the following: We show that the total number of the zero-component of spins at each site is a conserved quantity. This quantity, which may intuitively called as hole's quantum number, is hidden in the system. We show further that the hole's number in the ground-state is zero; By using the Jordan-Wigner transformation, we map this model onto a series of subsystems described by the spin 1/2 dimerized transverse Ising model. We solve the subsystems exactly, by presenting the exact wave functions and spectra;We show that this system exhibits a series of quantum phase transitions by varying the dimerization strength. We determine the quantum critical points exactly. We also show that the criticality is the same as that of the uniform S = 1/2 transverse Ising chain.

第四章是本文的重点及主要创新内容,我们具体研究了自旋为1的在横向单离子晶格场中的一维二聚化Ising链,我们得到的主要结果和创新之处是:(1)证明了这一模型具有一种隐藏的对称性,即自旋第三分量为零的格点数目是一个守恒量,并证明基态出现在空穴数目为零的子空间中;(2)利用Jordan-Wigner 变换将此模型变换到一系列自旋为1/2的横磁场中的二聚化Ising 模型,并给出了相应严格的波函数及能谱;(3)我们发现系统的基态随着二聚化强度的变化将呈现出一系列量子相变,我们得到了量子临界点的精确位置,并证明其临界性质与自旋为1/2的横磁场中的均匀Ising 链中的临界行为属于同一普适类。

In order to research the ship ultimate strength, the ultimate strength of stiffened panel must be considered. And the web buckling and the stiffener tripping are the two main failure forms of stiffened panel. Based on the two main failure forms in this paper, according to the six failure modes of stiffened panel, the ultimate strength is solved by programming, and the failure mode is presented.

船体梁可近似看作是由加筋板组成的薄壁箱型结构,要研究船舶的极限强度,必须考虑加筋板的临界应力,而腹板屈曲和扶强材侧倾是加筋板的两种主要失效模式,本文在分析这两种失效模式的基础上,根据加筋板的六种失效模式,编程求解加筋板的临界应力,并给出其失效模式。

Changing formula forms of single-shear, twin-shear and three-shear yield strength criteria, show that many of yield strength criteria of rock and soil materials can be expressed by the τ8 = gf function forms unter the ordinary condition, and that the main differ ences of yield strength value will mainly forcus on the different function forms of gθσ among single-shear, twin-shear and three-shear yield strength criteria.

对岩土体常用的单剪屈服强度准则、双剪屈服强度准则和三剪屈服强度准则进行了系统的论述,通过对单剪、双剪和三剪屈服强度准则进行转化,指出岩土的屈服强度准则一般可表达为τ8=gf的函数形式,阐明了单剪、双剪和三剪屈服强度准则的差异主要表现在g函数的不同,并进一步解释了中间主应力σ2对岩土类材料屈服强度的影响。

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I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援,我们正徵召国家所有各种的力量:我们的外交及发展,我们的经济力量与道德劝说,所以你们与其他军人不须要孤独地负起国家安全的责任。

Imagine yourself to be an actor in a play on the stage.

设想你自己是一个演员在舞台上表演。