It is revealed by finite element analysis on three-dimension bellows model that the immediate cause for in-plane instability of bellows is the unsymmetrical load or the unsymmetrical structure of bellows.
对波纹管三维实体模型的有限元稳定性分析表明，导致实际波纹管产生平面失稳状况的直接原因应为波纹管所承受载荷的不对称性和波纹管结构本身的不对称性。
Secondly, the strain - stress field of this kind of welded joint is seriously analyzed and it is found that this fracture field is different from those of all-base material and symmetrical structure of welded joint. It is the unsymmetrical strain - stress field. So, the proper fracture parameter must be found to study the fracture properties of this typical welding structure.
其次，基于数值解的结果，详细地分析了不同组配对熔合线含裂纹焊接接头裂纹尖端应力应变场的影响，为寻求适合的断裂性能评定参量提供依据；然后，采用目前普遍使用的J积分断裂参量，对于裂纹处于焊缝中间、熔合线和热影响区三种裂纹位置的焊接接头，进行了有限元数值计算。
Encryption international standards and popular commercial encryption systems are reviewed. An unsymmetrical security transmission structure based on Advanced Encryption Standard, public key encryption system and message digest Hash function (MD5) has been devised by considering of the characteristics of actual management information systems. The hybrid encryption system was implemented by C# language and it was tested in the practical situation.
从分析加密算法国际标准和流行的商业加密系统入手，结合实际管理信息系统的数据及操作特点，基于先进加密标准、非对称公钥系统和信息摘要Hash算法(MD5)提出了一种非对称数据安全传输方案，并利用C#语言开发了相应的程序并进行了系统测试。
The main innovations are:(1) Puts forward a new length-adaptive fractional harmonic pre-emphasize algorithm to improve the precision of pitch search; (2) Puts forward a new fractional harmonic-enhance algorithm for algebraic codebook and combines two different pulse-dispersion technologies both in encoder and in decoder to improve the random codebook excitation; (3) Puts forward new unsymmetrical algebraic codebook structure to utilize the unsymmetrical distribution of residual signal, therefore constructs random codebook efficiently at low bit-rate; (4) Puts forward the method of directing the gain quantization by predictor selection bit of LSP quantization to improve the quantization efficiency of speech transition; (5) Integrated the above improvements, two new low bit-rate high quality CELP speech coding algorithm are put forward: 4kb/s Multiple Pulse Dispersion-Algebraic Code Excited Linear Prediction and 3.3kb/s Multiple Pulse Dispersion-Un-Symmetrical Algebraic Code Excited Linear Prediction (MPD-USACELP). The speech quality and algorithm delay of the two new algorithms have reached the current international level.
主要成果有：（1）提出了一种新的长度自适应分数谐波预加重方法提高了基音周期搜索准确度；（2）提出了一种新的代数码本分数谐波增强算法，并结合使用编码器和解码器中两种不同的脉冲散布技术，有效改进了随机码本激励；（3）提出了新的非均匀代数码本结构，充分利用了余量信号幅度分布的非均匀性，在低速率下利用很少的比特很好的构造了随机码本；（4）提出了利用LSP量化预测器选择信息指导增益量化的方法，显著提高了语音过渡段的量化效率；（5）结合这些改进措施，设计并实现了两种新的低速率高质量CELP算法：4kb／s多重脉冲散布代数码本激励线性预测算法和3.3kb／s多重脉冲散布非均匀代数码本激励线性预测（MPD-USACELP）算法，两种新算法的质量都达到了国际同类算法的水平，并保持了较低的算法延时和算法复杂度。
In addition, owing to the side column structure being subjected to the action of alternate stress of unsymmetrical cycle, it is recommended that the strength of side column should be evaluated by the allowable stress under the condition of alternate stress.
此外，由于侧柱结构承受非对称循环交变应力的作用，故建议按交变应力下的许用应力来评价侧柱结构的强度。
The seasonal and annual variations of pure ozone flux in Southern Hemisphere have two peak values which show the structure of unsymmetrical seasonal wave, which is completely contrary with Northern Hemisphere.
南北半球臭氧净通量的变化趋势相反，南半球为双峰结构，表现为非对称振幅的季节波动结构。
This reflects two problems of the open structure of Chinese economy. First, foreign investment in China exceeded greatly Chinese investment abroad, it is very unsymmetrical that the ways and sources that Chinese residents gain revenue from abroad and foreign residents gain revenue from China.
它反映了中国经济开放结构中的两个问题：一是中国对外投资大大少于引进外资，因而中国国民从国外获得收入的途径、来源和外国国民从中国获得收入的途径、来源极不对称；
Soil-structure interaction of unsymmetrical trench installation culvert full cellularised container ship
非对称沟埋式涵洞涵-土作用机理（英文）全槽格式集装箱船全格栅式集装箱船
It is clear that the pump capacity affects the spinning and unsymmetrical structure formation.
泵供量对纺丝成形、不对称结构形成的影响较大；
Theory and dynamic model on the unsymmetrical structure formation of high-speed spinning pet & ⅰ. basic theory and the influences of pump capacity and take-up speed
涤纶高速纺不对称结构形成的理论研究及纺丝动力学模型&Ⅰ.基本理论及泵供量和卷绕速度的影响
Different from the ordinary quadrangular arranged boiler, hexagonal-arranged burner boiler with a high length-width ratio is unsymmetrical structure.
高长宽比、六角切向布置方式的锅炉与普通的四角切向布置的矩形锅炉不同，在位置结构上存在不对称性。
The membrane has two layers, with the thin and compact surface active layer containing quaternary ammonium salt and the bottom layer with unsymmetrical and spongy structure.
该复合膜很明显由两层组成，上层是较薄且致密的壳聚糖季铵盐表层，下层是非对称的多孔聚丙烯腈支撑层。
This paper describes the structure and principle of a bifilar torsion pendulum in its general (unsymmetrical) form.
本文介绍了一般双线摆的结构原理。
Finally, it is discovered the strongest rainstorm center was resulted in the unsymmetrical structure of typhoon " Bilis " through the structure sensitivity test.
最后进行削弱台风非对称性结构敏感性试验，发现台风登陆前后最强暴雨中心落在福建北部沿海地区是由台风较强的非对称性结构造成的。
A Study on the Relationship between the Structure and Properties of Unsymmetrical Carbocyanine Green-sensitizing Dyes
不对称碳菁感绿增感染料结构与性能关系研究
Synthesis of Copper (ⅱ) Coordination Polymer Based on Chiral Unsymmetrical Schiff-Base and Its Crystal Structure
手性不对称希夫碱铜配位聚合物的合成及其晶体结构
Finally, an unsymmetrical rotor structure is proposed, which can reduce armature reactions, linearize the control characteristics and increase overload capacity.
最后，为进一步提高性能，使之具有线性的控制特性和大的过载能力，文中提出了一种电枢反应小的不对称转子磁路结构的方波电机。
Suppose the restoring force model of the unsymmetrical structure be a bilinear stiffness model, and the viscoelastic halfspace a lumped parameter model, then the spatial computation model of the soil-structure interaction system is derived.
假定非对称结构的恢复力为双线性模型，地基土为集中参数模型，建立了地基-结构空间相互作用模型。
Symmetric Decomposition Method of the Unsymmetrical Load on Symmetrical Structure
对称结构中非对称载荷的对称分解方法
It analyses the structure characteristics of the unsymmetrical workpiece and its problem for the forming.
以半椭圓形内胆工件为例，分析了非对称形工件的结构特点及由此给成形来的问题，介绍了对此类工件可以采取的工艺对策，以及可应用于批量生产的成形工艺方法和主要模具的结构特点。