有...条件

In this topic, the dynamic analysis methods for piezoelectric vibrator are studied systematically based on the theoretical model, FEM numerical experimentation and FEM governing equation for given compound-mode vibrator, and some valuable conclusions are obtained. The main work accomplished is summarized as follows: 1.Elaborate the main modeling methods for piezoelectric vibrator and the significance and necessity to study the dynamic characteristics of piezoelectric vibrator which emphasize the urgency of this paper. 2.Take the bending deformation induced by piezoelectric ceramic as example, the energy transfer mechanism of electric energy to mechanical energy are analyzed; the motion and force transfer mechanism are analyzed for the longitudinal-bending vibrator. 3.Based on mode assumption and Hamilton principle, the coupling model of piezoelectric vibrator of linear USM is built; moreover, the equivalent circuit model is obtained and a coupling equation represents the relation between electric parameters and mechanical parameters is derived which provides foundation to match the vibrator and driving circuit. 4.Combine the constitutive equation of piezoelectric ceramic with elastic-dynamical equation, geometric equation in force field and the Maxwell equation in electric field and the corresponding boundary condition equation, the FEM control equation for piezoelectric vibrator of USM to solve dynamic electro-mechanical coupling field is established by employing the principle of virtual displacement. The equation lays the foundation to study the non-linear constitutive equation of piezoelectric ceramic driven by high-power. 5.Define the dynamic indexes of characteristic of vibrator and carry out variable parameters simulation by calculating the model parameters and the electric characteristics of vibrator are simulated according to the equivalent circuit model. By numerical experimentation, the working mode of vibration of vibrator and the shock excitation results of the working frequency band which provides the mode frequency to realize bimodal are analyzed. Detailed calculation of the electro-mechanical coupling field parameters is made by programming the FEM control equation.

本课题从理论模型、有限元数值试验、有限元控制模型等方面以复合振动模式振子为例对超声电机压电振子的动力学特性及其分析方法进行了全面系统地研究，得出了许多有价值的结论，主要概括如下： 1、阐述了目前针对超声电机压电振子的主要建模方法，对压电振子动态特性的研究意义和必要性进行了论述，突出了本文研究内容的迫切性； 2、以压电陶瓷诱发弹性体发生弯曲变形为例，分析了压电陶瓷通过诱发应变来实现机电能量转换的机理；对基于纵弯模式的压电振子的运动及动力传递机理进行了分析； 3、基于模态假定，利用分析动力学的Hamilton原理，建立了面向直线超声电机压电振子的机电耦合动力学模型，并据此建立了压电振子的等效电路模型，导出了电参量与动力学特性参量的耦合方程，为压电振子与驱动电路的匹配提供了依据； 4、从压电陶瓷的本构方程出发，综合力场的弹性动力学方程、几何方程、电场的麦克斯韦方程以及相应的边界条件方程，采用虚位移原理，建立了压电振子动态问题机电耦合场求解的有限元控制方程，为研究其大功率驱动下的非线性本构模型奠定了基础； 5、界定压电振子的动力学特性指标，对压电振子的机电耦合动力学模型参数进行计算及变参数仿真；依据等效电路模型，对压电振子的电学特性进行了仿真分析；通过有限元数值实验，对压电振子工作模态附近的模态振型及工作频率附近的频段进行了激振效果分析，找出了实现模态简并的激振频率；利用有限元控制方程，通过编程计算，对压电振子的力电耦合场参数进行了详细计算，得出了一些有价值的结论。

Of course, the yen loans in China at that time task of rebuilding, lack of funds, just to restore the building, played a big role, but the Chinese are not without conscience, China not only to thank the many (not like some Be good at lying to the Japanese said, no thanks to China, thanks to never, China made a real concrete, and also wrote a book report, but also the "friends" like little talk about the substance of ODA , As "friends" to leave more face-saving), but also to use as much as possible the conditions for the promotion of Sino-Japanese friendship (at that time if there is such a media and the Internet, people across the country will be possible,"Hara"), it can be said for a long time in our Is to try not to open Japan's war of "pain"(see the introduction of a large number of Japanese movies on TV we can see the direction of public opinion).

当然，对华日元贷款在当时中国百废待兴，资金缺乏，刚刚恢复建设的时候，发挥了不小的作用，但中国人是有良心的，中国不仅多次感谢了（根本没有象有些善于说谎的日本人说的那样，中国毫无谢意，从不感谢，中国实实在在具体的作了，又出书又写了报告，而且也和这位"友人"一样很少谈论ODA的实质，为"朋友"留些面子），而且也利用尽可能的条件宣传了中日友好（如果当时有现在这样的媒体和互联网，可能全国人民都会"哈日"了），可以说在很长时间我们是尽量不揭日本的战争之"痛"（看看当时大量引进的日本电影电视剧就可知我们的社会舆论的导向了）。

No difference of the occurrence of pyemia between the normal group and the MEFV mutant group was observed.

卡方检验结果显示，MEFV基因突变组脓毒症发生率与正常组之间的差异无统计学意义(P＞0.05)，尚不能认为有MEFV基因突变的病人烧伤后的脓毒症发生率高；非条件logistic回归分析表明，年龄和烧伤面积是影响烧伤病人预后的主要因素，而是否有MEFV基因突变尚不能确定为直接的影响因素。3。

The author puts forward in this chapter the new concepts of literate bilinguals and illiterate bilinguals. The author also considers the features of dominance and recessiveness owing to the language function and language loyalty.

外部条件主要有：建立保护和发展朝鲜语文教学的法律制度，这对双语现象的形成起到了重要的保障作用；最大限度地普及双语教育制下的基础教育，这对双语人的双语水平有根本影响；做好与双语教育发展相关的配套工程，这直接关系到非文盲双语人的质量；与朝鲜族自身发展相关的新事物、新变革，这是双语现象形成的相关因素。

Bindings worn, some corners showing cardboard at tips, hinges rubbed, most hinges starting to crack at top and bottom, 3 upper hinges cracked along half the length but covers still holding, some spines slightly chipped at top or bottom, title label missing on Volume I, label slightly chipped on 3 volumes, inscription to all pastedowns, occasional light staining and light soiling mainly to margins and chiefly in Volume I, some ink splashed on fore-edges of Volume II, just showing at edge of title page, small piece torn from fore-edge of 1 page in Volume I with loss of about 3 words on recto and verso, small closed tear to margin in Volume III, 2 in Volume IV, 1 just entering text, all neatly repaired with no loss of text, small piece missing from 1 corner in Volume V, no loss of text, title page of Volume VII slightly browned and with small piece missing from fore-edge margin, small hole in 1 text page with loss of a few letters, all still easily legible, map of the world has several repairs to reverse, no loss of image, plus several misfolds, lightly browned along 1 vertical fold, some calculations in old ink on reverse of 1 map, tiny hole in 1 map with very slight loss, a small brown stain to 1 plate, 3 tiny holes in lower margin of 1 plate.

条件绑定破旧，在一些弯道显示提示纸板，摩擦铰链，铰链最开始打击在顶部和底部，3上铰链沿长度的一半，但其涵盖破获仍然持有，有些刺略有顶部或底部缺口，标题标签上卷失踪一，标签上稍微切3卷，所有pastedowns题词，偶尔光染色和轻弄脏主要是利润率和主要余卷，一些墨水溅到突出，第二卷的边缘，就显示在标题页的边缘，小件撕裂的前奏，1页边卷约3对直肠和Verso的损失我的话，小封闭撕裂，在第三卷，第四卷2，1只输入文本，所有整齐，没有文字的损失修复保证金，从一小块角落的第五卷，没有文字的损失，卷扉页七略变黄，并从一小块突出失踪的边缘利润，在1文字页小孔与几个字母损失失踪，所有仍然很容易辨认，在世界地图上有几个维修扭转，没有形象的损失，再加上一些变异，轻轻沿1垂直倍褐变，在对1地图，地图上，在一洞非常小的损失，改变旧墨水一些计算小褐变1盘，3小孔低1板块边缘。

If the entrusting party fails to provide or refurnish relevant technical materials, data or working conditions two months after the dute date, thereby causing work stoppage on the part of the advisory party, the advisory party has the right to cancel the contract and the entrusting party should pay default fines or compensate for the losses, except otherwise provided in the contract.

委托方逾期两个月不提供或者不补充有关技术资料、数据和工作条件，导致顾问方无法开展工作的，顾问方有权解除合同，委托方应当支付违约金或者赔偿损失。合同另有约定的除外。

We extracted membrane protein of Mycoplasma hyopneumoniae MY-99 strain from its different passages strains MY-99l,MY-993 and rejuvenescence strain MY-992, then analyzed them by SDS-PAGE, the results show that the membrane protein of Mycoplasma hyopneumoniae MY-99 strain mutated during artificial culturing . According to the electrophoretic profiles, the membrane proteins of MY-991 include 7 protein bands: 94.4KD,57.5KD,46.0KD,36.0KD,32.4KD,20.4KD and 16.6KD.

采用0.4％TritonX-100结合KI提取猪肿炎支原体MY-99株不同代次的传代株MY-991、MY-993和复壮株MY-992的膜蛋白，并通过SDS-PAGE技术对其膜蛋白进行比较分析发现，在人工培养条件下猪肺炎支原体MY-99株的膜蛋白发生了一定的变异，其中MY-991株的膜蛋白有七条蛋白条带：94.4KD、57.5KD、46.0KD、36.0KD、32.4KD、20.4KD和16.6KD，MY-993株的膜蛋白有七条蛋白条带：94.4KD、57.5KD、46.0KD、41.0KD、36.0KD、32.4KD和19.5KD，MY-992株的膜蛋白只有两条蛋白条带：46.0KD和32.4KD。

Compared to reticulated structure, it has more stability bearing capacity. So the sheet-space structure is a structure system which has good future.

其稳定承载力比相同条件下的网壳结构有很大的提高，是一种很有发展潜力的空间结构形式。

In those conditions as make for the studies of the entity, the seeking - as innate forces - for the influences held by those who concentrate in the silence and in the mental imaginative forces - these, guided by a stabilized ideal, may be made most helpful; these - run rampant, without consideration as to whether same becomes riotous in activity; not clothed, to be sure, in any form of censure, but as to whether same becomes a continuity of influences as of helpfulness or riotousness - without respect of persons, places or things - is different.

在作为此个体的学习的那些条件当中，寻求—作为与生俱来的力量—作为被那些集中于寂静和精神上的想象力里面的人所持守的影响—这些，被1个稳固的灵性理想所指导，大概会是最有帮助的；这些—行为放4的，对于是否同样的人成为在行为上放纵的欠缺考虑；不穿衣服的，无可否认，以任何形式的谴责，但是关于是否同样的人成为1个关于有帮助的或者放纵的影响的连续—不尊重人，地方或者事情—是不1样的。

There was a huge library near the riverfront, but I knew that Negroes were not allowed to patronize its shelves.

有一个靠近河边巨大的藏书室，但我知道黑人不准光顾的货架上 45.1974年，该研究所的指示进行，但条件是根据其研究结果，其中也有一个市场的作用。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。