利用高压毛细管流变仪对SEBS和TPU的流变性能进行了研究。结果表明,SEBS熔体流动表现为非牛顿性,粘度随剪切速率增加而降低。
The rheological results of SEBS and TPU by means of high pressure capillary indicates that SEBS is non-Newton fluid, the viscosity decreases when the shear rate increases.
换句话说,伏尔泰在科学上的业余性“是他当时吸引力的一个来源,第一次证明了牛顿的思想对非专业人士的可接受性”。
In other words, Voltaire's amateurism in science "was a source of his contemporary appeal, demonstrating for the first time the accessibility of Newton's ideas to nonspecialists".
问题是在量子力学中,时间保持其牛顿式超然性,提供物质赖以舞动但从不受其存在的影响的舞台。
The snag is that in quantum mechanics, time retains its Newtonian aloofness, providing the stage against which matter dances but never being affected by its presence.
现在,有希望从另外一条途径去解决这个难题:通过对牛顿第二定律进行修正以后,排除了暗物质存在的可能性。
Now, one hopes to solve the puzzle a different way: using a modified version of Newton's second law that would eliminate the need for dark matter altogether.
您的祖先和牛顿、叔本华不同的地方是他认为时间没有同一性和绝对性。
Differing from Newton and Schopenhauer, your ancestor did not think of time as absolute and uniform.
艾萨克·牛顿发现了世界定律,主要进行物理研究,但他还臆想出一些疯狂的可能性,预言了世界的末日。
Isaac Newton, amidst discovering the laws of the world, basically writing physics and thinking up insane possibilities, put a date to the end of the world.
后来戏剧性的一幕发生了:乔布斯突然把一部“牛顿”扔进了几步以外的垃圾箱,以此来强调他的决定。
Jobs then dramatically hurled a Newton into a garbage can a few feet away to punctuate his decision.
那个具有确定性的时钟机构式宇宙的牛顿的观点被量子力学更具动态性的,不确定性的也更让人迷惑的世界的理论所取代。
The deterministic, Newtonian view of a clockwork Universe was replaced by the much more dynamic, uncertain and entangled world of Quantum Mechanics.
病毒在北卡罗来纳州的牛顿·格罗夫的母猪中传播,并导致母猪流产。随后病毒传到了德克·萨斯、爱荷华和明尼苏达州,引起了流行病学专家对这种新病毒的关注,并警告其在人类中爆发的可能性。
It spread among pregnant sows in Newton Grove, N.C., causing them to abort their litters, and then to swine in Texas, Iowa and.
我相信伊萨克·牛顿爵士也很想见到这一切,因为这能证明他的第一运动定律的正确性。
I'm pretty sure that Sir Isaac would have loved to see this, as it would have proved his first law of motion to be correct.
讨论具有一般形式的对流项、扩散项、边界流项以及反应项的一维牛顿渗流方程初边值问题非负解的整体存在性。
The present paper studied the global existence of nonnegative solutions of one-dimensional Newtonian filtration equation with more general boundary fluxes term, reaction, diffusion and convection.
本文对牛顿万有引力定律提出了一种非黎曼几何的相对论性的可能修正公式。
In this paper, a possible Correction of non-Riemannian geometric relativity is made for Newton's Law of Gravitation.
动力学方程的不可积性是对牛顿力学的第三个限制。
The unintegratable feature of dynamic equation is the third limit to Newton's mechanics.
这种方法不仅具有牛顿方法的快速收敛性,又具有理想的总体收敛性。
This approach has not only the rapid convergence for Newton's method, but also the desirable overall convergence.
沿袭用锥模型来逼近原问题的思路,本文主要研究锥模型拟牛顿信赖域方法的参数选择、收敛性和数值实现。
In this paper, we mainly discuss the modified quasi-Newton trust region methods based on a conic model (TRCM method) and prove their convergence properties.
为改进网络学习效率及大范围收敛性,提出了网络权值学习的单调同伦方法,该方法具有与牛顿法相同的二阶收敛性。
To improve the learning efficiency and global convergence we present the monotone homotopy method, which has the same convergence as the Newton's method, to train the weights of the network.
研究球形约束变分不等式求解的算法,提出一种光滑化牛顿方法,证明了该方法具有全局收敛性和超线性收敛。
In this paper we present a smoothing Newton method for solving ball constrained variational inequalities. Global and superlinear convergence theorems of the proposed method are established.
研究了一类超定非线性方程组的牛顿迭代法的收敛性。
The convergence properties of Newton's method for a type of overdetermined systems of equations were studied.
在采用一个鲁棒性匹配误差映射函数的基础上,使用一种类牛顿法的迭代优化方法实现了基于仿射模型的图像目标跟踪算法。
With the use of a robust error mapping function, an affine model-based target tracking algorithm is formulated, in which a quasi-Newton's iterative method is implemented in the optimization progress.
本文介绍一种用透射光做牛顿环实验的方法,并从理论上证明了这种方法的可行性。
A method of making Newton rings experiment with the transmission light is introduced. The feasibility of the method is proved in theory.
牛顿力学的时间可逆性与宏观热力学过程不可逆性的矛盾,很长时间以来一直是物理学和哲学中争论最多的问题之一。
The contradiction between temporal reversibility of Newton mechanics and irreversibility of thermodynamic process has long been one of the most frequently debated problems in physics and philosophy.
牛顿第二定律实质上是动量连续性方程的积分形式,因而,力可以被理解为动量流。
Forces can be visualized as momentum currents, for Newton's Second Law is equivalent to the continuity equation for momentum in integral form.
应用物理学中的质量守恒定律、牛顿第二定律、动量定律等,建立了交通流的连续性方程、欧拉方程和动量方程;
Conservation of mass, second Newton's law, and momentum law are introduced into traffic flow to set up traffic continuity equation, Euler's equation, and momentum integral equation.
利用混沌理论论证了牛顿力学在非线性系统中存在内在随机性。
The paper proves the randomicity of Newtonian mechanics in nonlinear system by applying the theory of chaos.
此文针对塑性成形有限元分析大增量加载的收敛性困难,推导了用于板料成形弹塑性有限元分析的牛顿一致迭代公式。
In this paper, facing the convergent problem of plastic forming using large incremental step, we deduced the iterative formula used in analysis of elastic-plastic plate forming finite element method.
在已有的基础上探讨了它的半局部收敛性,利用强函数原理,在一定的条件下给出并证明不精确牛顿法的半局部收敛性。
There have many papers for its local convergence, This paper probes into the semi-local convergence using a majorant function principle on some weak condition.
海森矩阵被应用于牛顿法解决的大规模优化问题。混合偏导数和海森矩阵的对称性海森矩阵的混合偏导数是海森矩阵非主对角线上的元素。
Hessian matrices are used in large-scale optimization problems within Newton-type methods because they are the coefficient of the quadratic term of a local Taylor expansion of a function.
与拟牛顿法和蚁群算法相比,新算法不仅提高了解的精确性,而且增强了收敛的可靠性。
Compared with the quasi Newton methods and ACA, the solution accuracy of new algorithm is not only improved, but also the convergent reliability is increased.
澄清了对牛顿第一定律的一些模糊认识,对认识牛顿三定律之间的关系和理论的完备性和逻辑性提出了不同的看法。
The obscure understanding on Newton's First law was cleared up. Some different idea about the relation of Newtion's three law and the theory's completeness and logic was put forward.
澄清了对牛顿第一定律的一些模糊认识,对认识牛顿三定律之间的关系和理论的完备性和逻辑性提出了不同的看法。
The obscure understanding on Newton's First law was cleared up. Some different idea about the relation of Newtion's three law and the theory's completeness and logic was put forward.
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