The problem of preparation of linear materials is a typical integer programing. In this paper, the selection of decision schemes, modeling, the analysis of solution are studied.
线材的合理利用问题是一类很有代表性的整数规划问题。本文对线材下料问题决策的方案选择、模型的建立、解的分析进行了系统的分析和研究。
Considering the linear strain-hardening effect of materials, this paper proposes a computation method for the stresses and strength of autofrettaged cylinders.
本文主要讨论了在材料线性应变硬化效应的情况下,自紧管应力与强度的计算公式的推导。
In engineering practice, when a foundation size is small, the foundation pressure can be treated as linear distribution and simply calculated according to formulas of Mechanics of Materials.
在工程实际中,当基础尺寸较小时,基底压力可当作直线分布,按材料力学公式简化计算。
While water soluble hemostatic materials is a kind of linear high polymer, its viscosity is greatly affected by shearing stress and other factors during solvation.
水溶性止血纺织材料为线型高分子聚合物,在溶解过程中,粘度受剪切应力及其他因素影响极大。
But for materials of the general system well testing (often 4 points), description and special linear regression should be used in these two ways.
但是,对于常规系统试井(一般为4点)测试资料,这两种方法的应用,需要进行作图和特定的线性回归处理。
The results indicate that the relationship between stress ratio and strain incremental ratio in these materials is still a linear relation on the extended moblized plane.
结果表明,在扩展强度发挥面上,这几种材料的应力比与应变增量比之间仍具有线性关系。
Based on the deformation theory of linear hardening materials, a simplified finite element analysis method is proposed to calculate the limit load of structures.
基于线性硬化材料形变理论,本文提出了一种计算结构极限载荷的有限元简化算法。
Besides, in analysis of reflectivity versus incident Angle of absorbing materials, it used to use linear interpolating method and resulted in considerable error.
此外,在以前分析计算吸波材料的反射率与入射角的关系时,常采用性线插值法,这会引入较大的设计误差。
The peak wavelength of the semiconductor laser(LD) linear array with the materials is 939.
利用该材料制成半导体激光(LD)线阵列的峰值波长为939。
A simplified model is proposed for plasticity in particle-reinforced composite materials with linear spring-type imperfect interfaces under proportional loading.
本文研究线弹簧型弱界面颗粒增强复合材料,在比例加载条件下的简化塑性模型。
His specialties are condensed matter physics, optics (linear and nonlinear), and materials science.
专业是凝态物理、光学(线性和非线性)以及材料科学。
The results show that corrugated boards may be simplified into linear elastic materials.
实验结果表明瓦楞纸板可简化为线弹性材料。
Based on analysis of the asymmetrical hysteretic nonlinearity of materials, a piecewise linear asymmetrical hysteretic model was built.
分析了振动压实过程中被压实材料的不对称迟滞特性,建立了一种分段线性的不对称迟滞模型。
The effect of soft coatings on the elastic moduli of composite materials is studied, in which the coating is modeled by a linear spring type imperfect interface.
采用线弹簧型弱界面模型来模拟柔性涂层,研究柔性涂层对复合材料宏观弹性模量的影响。
By using the hypothesis of the deformation of the straight bar and beam in mechanics of materials, a new engineering calculating model for a linear inclusion in plane is presented.
使用材料力学的直杆和梁的变形假定,对平面线夹杂问题提出一种新的工程计算模型。
One is that the two materials are assumed to be linear elastic ones.
另一种情况假设其中一种材料是纯线弹性材料。
For linear viscoelastic cracked bodies, when the applied stresses are constant, the displacement components are time dependent and are functions of rheological constants of materials.
对于线粘弹性裂纹体,当外应力是常数时,各位移分量均是时间相依的,且是材料流变常数的函数。
The linear fracture condition which has been shown to be applicable to a wide variety of materials of engineering importance, is detailed with special reference to its technological significance.
现已证明线性断裂条件可用于许多工程材料,这里着重叙述的是它的技术意义。
It also reduces bill of materials with the functionality of five discrete devices - power switch, linear regulator, buck regulator, buck-boost regulator, and monitor, says the company.
这也降低了材料的五个分立器件的功能比尔-电源开关,线性稳压器,降压稳压器,降压-升压型稳压器和显示器,说公司。
Linear alkylbenzenes are important raw materials for the synthesis of washing agent and it is synthesized from the alkylation of benzene with long-chain alkene in the presence of an acid catalyst.
长链烷基苯是合成洗涤剂的重要原料,是由苯与长链烯烃在酸性催化剂作用下烷基化反应生成的。
On the basis of a lot of experimental datas, experimental mathematical models of electric spark forming of several sorts of materials are built up with multiple linear regression analysis.
在大量实验数据的基础上,采用最小二乘法建立了实用的多种材料电加工实验数学模型。
According to the non-linear theory of composition of the graded function materials distribution, the volume content function of polyurethane in the mixed resin was achieved.
本论文根据制备梯度功能材料成分分布的非线性理论,计算出聚氨酯在混合树脂中体积比的分布函数。
Tension control is one of the key techniques of the winding process for linear, strip and area elastic materials, it affects the quality of winded products directly.
张力控制是线状、带状及面状弹性材料缠绕工艺中的一项关键技术,它直接影响到缠绕制品的质量。
Stability of normal shock waves in viscous materials is analyzed with linear stability theory(LST).
用线性稳定性理论,分析粘性物质中的正激波稳定性问题。
This paper proposes a command and control method of the battlefield materials transportation, which is based on linear programming and dual analysis.
一种基于线性规划及对偶分析的战场物资运输的指挥控制方法为解决此类问题提供了一种可行途径。
The radial members and gores are regarded as non linear elastic materials.
伞绳和伞衣处理成非线性弹性构件。
Basing on the elastic bending theory of beams in large deflection, the non-linear shearing behavior of cellular materials under large deformation is studied in the paper.
将梁的弹性大挠度弯曲理论应用于蜂窝壁板,研究了大变形条件下蜂窝材料的非线性剪切变形行为。
Modulated photothermal techniques provide useful methods based on linear relations to measure the thermal diffusivity of homogeneous materials.
调制光热技术的基础上的线性关系来衡量均质材料中的热扩散提供了有用的方法。
The synthesis of asymmetrical phthalocyanines and their recent studies in the field of organic non-linear optics, charge transfer materials, catalysts and molecular rectifiers are reviewed.
综述了近年来不对称酞菁化合物的合成进展及不对称酞菁在有机非线性光学、电荷转移、催化剂,分子整流器等领域的研究与应用。
The synthesis of asymmetrical phthalocyanines and their recent studies in the field of organic non-linear optics, charge transfer materials, catalysts and molecular rectifiers are reviewed.
综述了近年来不对称酞菁化合物的合成进展及不对称酞菁在有机非线性光学、电荷转移、催化剂,分子整流器等领域的研究与应用。
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