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Thirdly, by applying Frenchet derivative analysis, the iteration formula is derived to solve the constrained functional minimization problem, essentially the formula is a level set equation, in which the motion velocity of the level set is the shape sensitivity of material interfaces.

为了有效处理违反约束，这里还提出了在违反约束水平集的负法凸锥内构造水平集的法向修正速度的返回映射算法，它可以方便地处理多材料、多约束和含有非设计域的结构设计问题，使初值给定容易。

By applying Frenchet derivative analysis, the iteration formula is derived to solve the constrained functional minimization problem, essentially the formula is a level set equation, in which the motion velocity of the level set is the shape sensitivity of material interfaces.

这样就把材料界面表示为一组高维函数的水平集，使拓扑优化问题转化为材料界面追踪问题，这时材料界面的形状敏度就(来源：9aABb5C论文网www.abclunwen.com)是水平集的运动速度。

Our company main products have 5-1500KW diesel generator set is widely used in industry, posts and telecommunications, transportation of water, oil coal, hospitals, airports, high-rise buildings, highways, industrial and mining enterprises in such important fields as an ideal and reliable quality contingency reserve or common power supply.company is mainly engaged in the production of diesel generating sets, sales, leasing and spare parts supply company, from the diesel generator set production, sale, lease to support the design, implementation, from the diesel generating sets of normal maintenance to a variety of Trouble-shooting, we were able to realize your needs.

我公司主导产品有 5-1500KW 柴油发电机组，广泛应用于军工、邮电通信、交通水利、油田煤矿、医院、机场、高层建筑、高速公路、工矿企业等重要领域，作为一种理想的质量可靠的应急备用或常用电源。康诚公司主要从事柴油发电机组的生产、销售、租赁及零配件供应的专业公司，从柴油发电机组的生产、销售、租赁到配套工程的设计、实施，从柴油发电机组的正常维护到各种故障的排除，我们都能实现您的需要。

Secondly, by using the connection, we prove that the minimal continuous semi-flow is the minimal continuous flow if its time-one map is open, and for any minimal continuous semi-flow, there is an invariant residual set such that the restriction to the set is a minimal continuous flow.

为此，我们首先建立了它与其时间1映射极小集的联系；然后，利用这种联系证明了：若时间1映射为开映射，则它是极小的连续流，并且一般地说来，对任意极小连续半流，存在不变的剩余集，使得它在这不变集上的限制是极小的连续流。

The concept of controlled λ-exponentially contractive set for the systems is introduced,and relation between the set and that for its Euler approximation discrete-time system is also established.

首先，引入连续时间系统的受控λ-收缩集概念，并建立了与其Euler逼近的离散系统的受控收缩集之间的关系。

For critical applications an alarm can be set to activate should the oxygen level exceed a set control limit.

对于关键应用报警可设置为激活应该含氧量超过了一套控制上限。

It rotates the point set and calculates the extremum of X coordinate, and finally gets the Convex Hull of the point set.

它充分利用了成熟的数据库技术，能够在比较短的时间内计算出海量平面点集的近似凸壳。

In this paper,we give the definition of an∈,∈∨q(λ,μ-convex fuzzy set and discuss some of the fundamental properties of such convex fuzzy set.

给出∈，∈∨q(λ，μ-凸模糊集的定义，讨论它们的一些基本性质。

A new concept of convex set and its some characteristic properties This paper give a new definition, the support direction of a boundary point of convex set.

2复杂网格的Buffon概率在积分几何中，运动公式是一些定义在定区域与动区域交集上的几何函数的积分公式。

In this paper the topological properties of solution set of non-autonomous differential inclusions are discussed,and the fact that the mild solution set of Cauchy is a retract of a convex subset of a Banach space is proved.

讨论了半线性微分包含解的拓扑性质，证明了非自治情况下其适度解集是一Banach空间的凸子集的收缩核，且收缩映射连续依赖于初值。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。