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The generalized force consists of the generalized conservative force, the generalized dissipation force and the generalized force in correspondence with the generalized coordinate except the generalized conservative force and the generalized dissipation force.

基于非自治有阻尼系统推导了第二类Lagrange方程,使用虚功原理,给出了广义力的求解方法,广义力由广义保守力、广义耗散力、除广义保守力和广义耗散力以外的对应于广义坐标的广义力这3部分组成。

There are so many southern Republicans in Congress that they pretty much call the shots in the national Republican Party, making it more socially conservative than many non-southerners can stomach.

在国会中,南方来的共和党人太多了,以至于他们几乎控制了国家共和党,这就使得共和党变得很保守,这种保守是许多非南方人不能忍受的。

We have done some exploratory work from several aspects to generalize the Brownian motor to the more real situation: The model which molecular motor has internal degree of freedom; The track on which the Brownian particle moves cannot be completely ordered and contain certain amount of disorder, the model is rocking ratchets with stochastic potentials; A two-dimensional ratchet model with a non-conservative force to realize the coupling between the mechanical and chemical processes.

目前大多数的研究工作是把分子马达抽象为一维的点粒子,我们在推广布朗马达到更真实的方向上开展了以下几个侧面的研究分子马达动力学行为的探索性工作:分子马达具有内部结构的电偶极子模型;考虑分子马达的轨道不规则、不光滑的摇摆棘轮模型;提出一个具有非保守脉冲力场的二维棘轮模型。

In this paper, firstly, the new combined error model of cumulative geoid height influenced by three error sources including the inter-satellite range-rate of K-band ranging system, orbital position of GPS receiver and non-conservative force of accelerometer from GRACE satellites is established using the semi-analytical method. Secondly, the dependability of error models is demonstrated based on matching relationship among the accuracy indexes of key payloads. Finally, the accuracy of global gravitational field up to degree and order 120 is effectively and rapidly estimated from GRACE Level 1B measured observation errors of the year 2006 publicized by the Jet Propulsion Laboratory in the USA, and the cumulative geoid height error is 18.368 cm at degree 120, which preferably accords with the Earth's gravitational field model EIGEN-GRACE02S provided by the GeoForschungsZentrum Potsdam in Germany.

首先基于半解析法建立了新的GRACE卫星K波段测量系统星间测速、GPS接收机轨道位置和加速度计非保守力误差联合影响累计大地水准面的误差模型;其次,基于各关键载荷精度指标的匹配关系,论证了误差模型的可靠性;最后,基于美国喷气动力实验室公布的2006年的GRACE Level 1B实测误差数据,有效和快速地估计了120阶全球重力场的精度,在120阶处累计大地水准面的精度为18.368 cm,其结果和德国地学研究中心公布的EIGEN-GRACE02S全球重力场模型符合较好。

The Levy style Cable Dome model is made up of 〓5 tension piano-wires and 〓32×1 5 compressive steel pipes, distance between nodes and the tension force of cables is adjusted by screw up and down the turnbuckle The procedure of shaping up included four ways, and the loading included fully loaded and half loaded, to validate the influence of unconservative property, the author carried through the slack procedure and the unload procedure.

该Levy型索穹顶模型,以受拉的〓5高强钢丝和〓32×1.5受压钢管构成,节点间拉索的长度以及拉索的预拉力通过拧紧或放松花篮螺丝来调节。试验内容包括成形试验和承载力试验,成形试验尝试了四种不同的成形方法,为了考察结构非保守性的影响,每种成形方法成形后,还逆序进行了结构的松弛试验,荷载态试验包括均布荷载满载(即在所有压杆上部节点施加集中荷载)和半载(在结构1/2的压杆上部节点施加集中荷载)的加载和卸载时结构工作性能的测试。

It is more conservative with screen handling and thus does not screw up the screen as easily as more or less. p uses its own termcap package with TERMPATH support that makes it easy to have a local .termcap file in the user's home directory to override bad termcap entries. p supports three text attributes for nroff: bold, italic, and bold-italic. p is able to find patterns in higlighted text. p also filters out unprintable characters.

它在屏幕处理上是更保守的,这样就不会轻易地把屏幕弄得一团糟。p使用它自己的带有TERMPATH支持的termcap包,这可以方便地用用户主目录中的本地。termcap文件覆盖坏的termcap条目。p支持nroff的三个文本属性:粗体、斜体、和粗-斜体。p能在突出选中的文本中发现图案,也可以过滤出非打印字符。

In the buckling question under nonconservation force,a simply example( the dynamic stability question under the uniformly follower forces with small deformation % linear elastic, straight normal.) is considered.The variational equation of braid composite cylindrical shells subjectd to uniformly follower forces is deduced based on the variation principle of quasinatural frequency of elastic nonconservative system self-excited vibration.The calculated formulas of the flutter load and quasinatural frequency of shells are obtained. The program for calculating the flutter load is developed.The numerical example is given and some useful conclusions are obtained.

对非保守力作用下的屈曲问题,具体研究了圆柱壳在比较简单的情况,即小变形、线弹性、直法线假设下在随动力作用下的壳屈曲问题,由拟固有频率变分原理推出了圆柱壳受随从力作用的变分方程,得到了颤振载荷与壳弯曲的固有频率的计算公式,编制了相应的计算机程序,并给出了具体算例,得到了一些有益的结论。

Recombinatino polypeptide or chemically synthesized polypeptide antigen is used to immunize the mammal to obtain polyclonal antibody and the nonconservative amion acid sequence of the antiboby to N-terminal with recognition site qBrn-2 of development regulatory protein qBrn-2. The antibody does not recognize other POU structure domain protein, and recognizes specifically qunique protein in Western imprinting experiment. The qBrn-2 expression mode obtained immunohistochemistry process is identical with the resulted height of in-situ molecular hydridization.

以重组多肽或化学合成多肽为抗原免疫哺乳动物获得的多克隆抗体,这一抗体对发育调控蛋白qBrn-2的识别位点为qBrn-2的N-末端的非保守性的氨基酸序列,该抗体不识别其它POU结构域蛋白;在Western印记实验中,该抗体特异地识别单一的蛋白;利用免疫组织化学接示的qBrn-2表达模式与分子原位杂交的结果高度一致。

On the basis of design of a new type bilateral excitation electromagnetic vibrating head, a simplified mathematic model was set up through predigesting electromagnetic field to electromagnetic route method, and motion function of the system was also obtained based on variational theory and non-conservative system Lagrange function.

在设计了一种新型的双边激励的电磁式振动头的基础上,采用将磁场简化为磁路进行分析计算的方法建立振动头的简化数学模型,并根据变分原理及非保守系统拉格朗日方程得出系统的运动方程。

After considering the earth rotation and non-conservative forces energy dissipation, the energy conservation equation was presented. The formula of the gravitation potential and tide-generating force additional potential of sun and moon were given in detail.

给出了地心惯性系下顾及地球自转和非保守力能量损耗的能量守恒方程,并且对日、月摄动位与引潮力附加位的计算方法作了相应的分析,同时介绍了加速度数据的处理方法。

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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?