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Based on the multifunctional demand for the effective heat transfer performance ata specified pumping power and structural stiffness,the thermo-mechanical performance of Kagome cells was studied in comparison with the traditional regular triangle,square and hexagon cells with low relative density.

在此基础上,针对轻质蜂窝(相对密度小于0.3),选取蜂窝面内等效剪切刚度表征夹层结构的承载能力,综合考虑散热能力和结构承载能力,比较了Kagome蜂窝与传统的正三角形、正方形和正六边形蜂窝的性能。

In reaction-injection moldinga mixture of two or more reactive fluids is forced under high pressure into the mold cavity.Chemical reactions take place in the mold rapidly and the polymer solidifies.Various fibers such as glass,graphite,or boron may also be used to reinforce the materials.Structural foams are also produced by a similar methodusing an inert gasand resin mixture.The product consists of a rigid cellular(closed-cell)structure with a continuous solid skin as muchas 0.080 in.(2mm)in thickness.There are several methods for forming structural foams with density reductions as much as 40% from the solid structure.Because stiffness is proportional to the third power of the thickness of a part,for the same weight of material used,cellular structures are stiffer than solid plastics or metals.

在反应注射成型所夹杂的两个或两个以上的接触过程中,被迫在高压下进入模具cavity.chemical反应发生在模具迅速和聚合物solidifies.various纤维如玻璃,石墨,或硼可能也可以用来加强materials.structural泡沫也产生类似的方法利用惰性气体和树脂mixture.the产品构成的一个硬性蜂窝的结构与连续性固皮肤作为留言Muchas 0.080英寸( 2毫米),在thickness.there有几种方法,形成结构性的泡沫密度减少了四成之多,从固体structure.because刚度成正比第三力量厚度的一部分,为同样重量的使用材料,蜂窝结构更为严厉的比硬塑料或金属。

A characteristic point stiffiness method for tracing limit point of MDOF (Multi-degree-of-freedom) nonlinear structures is proposed in this paper By means of this method, the whole nonlinear elastoplastic path of displacement -load of castellated beams has been successfully traced It gives an insight into the failure state of castellated baem

根据跟踪结构极限荷载的特征点刚度方法,首次对自由度数非常大的蜂窝梁进行了非线性荷载位移全过程分析,揭示了蜂窝梁的受力特性,从而对蜂窝梁的非线性工作状态有了较为全面的了解。

Honeycomb structure is one kind of special composite for structural usage, it is damageable, then the residual strength of damaged structure will sharp down, so it is very important for the study of the residual strength and the repair of damaged honeycomb structures.

蜂窝夹芯结构是一种特殊的结构用复合材料,它是较容易出现损伤的构件,而含损伤的复合材料结构会大大降低其剩余强度,所以对含损伤的蜂窝夹芯结构的剩余强度及其修补技术的研究就显得十分重要了。

The similar formula of bending stiffness was given about the wooding sandwich construction and the formula can forecast the stiffness of sandwich construction.

结果表明:木质蜂窝夹芯材料的抗弯性能较原蜂窝纸板大大提高,给出的木质蜂窝夹芯材料抗弯刚度的近似公式可以预测夹芯结构的刚度。

Numerical simulations are conduced for the deformation, instability and failure of aluminum honeycombs with different relative density. The meso-mechanisms of instability and failure are analyzed.

数值模拟了不同相对密度范围的铝蜂窝结构的变形、失稳和破坏现象,分析了结构失稳和破坏的细观力学机制。

It is indicated by reflectivity results that the absorbing layer should have an optimum thickness to make the reflectivity minimal for honeycomb-structured absorbing materials with different height of honeycombs.

反射率计算结果表明,不同的蜂窝高度,吸收层对应一最优厚度,使蜂窝结构吸波材料的反射率最低。

In Chapter Two, we introduce the Dirac Fermion as the low energy excitations of the graphene, based on the field theory. We then discuss two-dimensional honeycomb lattice in the nearest-neighbor tight-binding model.

在第二章里,我们研究最近邻紧束缚模型下的二维蜂窝结构的电子态,然后讨论对应的场论模型,即一维Dirac Fermions 模型,最后引出有效质量方程。

The failure mode of honeycomb fibreboard was analyzed from the structure of honeycomb fibreboard and mechanical aspects.

从蜂窝纸板的结构和力学角度分析了蜂窝纸板的破坏模式、纸蜂窝芯的压缩破坏过程和蜂窝胞壁壁板受载破坏机理,得知蜂窝纸板的压缩破坏主要与纸蜂窝芯的结构和蜂窝胞壁的屈曲有关,为蜂窝纸板缓冲性能的研究提供了理论基础。

The three-faced rotating mirror with honeycomb cellular structure in ultra-high speed camera was presented,and the mechanical traits of such structural three-faced aluminous rotating mirror were analyzed by use of FEM.

提出蜂窝结构的三面体转镜,对这种新型转镜做了结构设计,利用三维有限元计算技术,分析蜂窝结构三面体铝合金转镜的力学性能。

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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%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。