查询词典 descent method

The method for producing 4-aminodiphenylamine from nitrobenzene and aniline was an ideal method at the present.

从硝基苯和苯胺直接合成4氨基二苯胺是当前一种较为理想的方法。

A new method called generalized displacement method, using new structural model taking into account the deformation of the nodal point and avoiding the disadvantage of stiffened nodal point model, is proposed here to calculate the displacement and the stress in adjecent point of thin-walled structure.

一、薄壁杆件结构的计算模型对金属薄壁杆件组合结构用有限元法计算时，遇到的一个困难是不同截面形状的薄壁杆件在连接点处由翘曲引起的轴向位移不协调。

The simulation results indicate that comparing with the classical Wiener filter, this method performs better in visual effect, mean square error and peak noise-signal ratio, and is an effective method for image restoration.

仿真实验表明，从视觉效果、均方误差和峰值信噪比等方面进行比较，其恢复效果比经典的维纳滤波法好，是一种有效的方法。

Parallel to the nomographic method, the numeri- cal calculating method is also put forward here. As an example, the lead and aluminium rings are pressed with oil lubrication or with- out. The results of data processing by nomogram and the numerical calculating are compared.

在线图法处理实验数据的基础上，提出了理论计算法，并对铅、铝两种材料在有无润滑剂条件下进行了圆环压缩试验，比较了用线图法和理论计算法对实验数据的处理结果，指出了各种方法的优缺点。

There are not algebraic formula for solution of the5- n algebraic equation, Thispaper presents a soluted method of nomography. With this method all real roots can beobtained quickly.

五次代数方程不存在求解的代数公式，文中提出了利用诺模图求解方法，可以快速地求出方程的全部实根。

At the end of this paper, perpendicular design calculation of non -linear finite element method is used to evaluate slope reliability. The results are compared with those of Monte-Carlo method, Their difference is small.

提出了非线性有限元法的正交设计计算用于评价边坡工程的可靠性，将其结果与Monte—Carlo计算结果进行了详细比较，二者具有很好的一致性。

The regression method of rheolo- gy parameter for non-Newtonian fluid is obtained by the least square method.

同时根据最小二乘法原理得出确定非牛顿流体流变参数的回归分析方法。

Especially when he laid "being" in a indefinitely possible arrangement which made people think "nonbeing" there displays his unique angle of view, traditional philosophical method which is always suitable for target lost its logical effect before "being", so the directly perceived the senses phenomenological method entered his fundamental ontology.

尤其是他把存在放在一种无限可能性的层次上而引发的对"无"的思考显示了他独特的一个哲学视角，传统对象型符合式的哲学方法在存在面前便失去了逻辑效力，面向事实本身的现象学方法因之进入了他的基本本体论。

According to the most unfavorable fire scenario for safety evaeuation, the AEST can be obtained through the spread of fire and smoke spread simulation. And the REST of different staff loads are calculated by empirical formula method. Through contrasting two times, whether evacuation passage setting can meet the evacuation requirements is confirmed, and then solutions are proposed. Then highway tunnel fire cause is discussed by Fault Tree Analysis method, and the effective measures to reduce the probability of tunnel fire are reducing the number of flammable materials and using fire-retardant or noncombustible materials for inner decoration are obtained.

以厦门金山寨隧道为例分析火灾时人员的安全疏散，针对隧道内最不利人员安全疏散的火灾场景进行分析，通过对火灾蔓延、烟气扩散进行模拟获得可用的人员安全疏散时间AEST，并用经验公式法计算不同的人员荷载下必需的人员安全疏散时间REST，对比两个时间，判别当前疏散通道的设置是否满足人员疏散要求，并对不满足安全疏散要求的工况提出解决方案。

Second order nonelastic analysis method of multistorey and high-rise lightweight spatial steel frame is emphatically researched and calculating theory and design method ground on structural ultimate bearing capacity is established.

推导了半刚性连接轻型钢框架结构空间二阶非弹性分析新的切线刚度矩阵，建立半刚性连接轻型钢框架结构空间二阶非弹性分析和结构极限承载力设计新的计算方法。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。