主方向线 principal line of direction; principal lines of direction
方程 [数学] equation 三次方程 cubic equation; 高次方程 equation of higher degree; 线性方程 linear equation; 把方程式简化成 ... reduce the equation to ...; 物态方程 equation of state; 化学方程 chemical equation
在本地或主方赛场举行的 played on or connected with one's own ground
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Based on this situation , in this paper , a more actual dynamic - chemical coupling model than two - state model , a periodic four - state kinetic hopping model , is established , and analyzed by the master equation method 基于这种情况,本文建立了一维周期性四态随机跃迁模型,并利用主方程方法进行了研究。
An explicit solution for the probability distribution as a function of the time and position in the master equation is obtained when the substeps between arbitrary adjacent states in a single period are equal for the molecular motor 并取得了如下成果: 1计算了分子马达在等间距跃迁情况下,当给定初始分布时,任意位置任意时刻主方程中几率分布的解析表达式。
In the second part , a method studying stochastic transition which is the master equation method is introduced , and explicit solutions of velocity v and diffusion constant d of the steady state are obtained when a particle hops among a dimensional and periodic n states 第二部分介绍了一种研究随机跃迁的方法?主方程方法,着重推导了粒子做一维周期性n态随机跃迁时达到稳态的速度、扩散系数的一般表达式。
The orthogonality basis of geometric algebra is used to convert the quantum master equation into state space model ; the equation is divided into several parts matrix is analyzed to show its compact on the evolution and the dynamics of the system 本文从量子主方程模型出发,选取一组合适的完备正交基将主方程模型转化为实向量空间上的利于设计控制方案的状态空间模型,并基于此模型针对一个典型的二能级量子系统设计最优控制方案,仿真结果验证了方案的有效性。
First , the paper researchs the spice simulation of single electron transistor based on curve approach and quasi - analytical model of single electron transisor , and simulate characteristic of single electon transistor with matlab tool . secondly , the paper combine spice simulation program with master equation of single electron transistor , put forward novel spice simulation method of single electron transistor based on master equation , by choose master state of single electron transistor and build master equation of single electron transistor , afterward gain nonlinear cortrolled source of spice model of single electron transistor by solve the master equation of single electron transistor and simulate v - i characteristic of single electon transistor by spice program , it ’ s result prove the method is availability precision comparing with master equation method 然后在此基础上提出了基于主方程法单电子晶体管spice模拟新方法,本论文结合当前电路模拟软件spice程序和单电子晶体管主方程模拟算法,通过选择单电子岛电子数的主要状态,建立单电子晶体管主方程,然后求解主方程,求得单电子晶体管spice等效模型的受控源的非线性函数,然后利用集成电路辅助分析软件spice的abm (模拟行为建模)建立单电子晶体管( set ) spice等效模型,利用set的等效模型对单电子晶体管v - i特性进行仿真,实验证明此方法与直接解主方程法相比具有一定的精度。
Then , based on the latest high - resolution , three - dimension crystal structure of kcsa potassium channel , a three - state hopping model is established to study permeation of an open - state potassium channel . breaking through other theories , we innovatively choose the master equation to characterize the dynamics of the system and educe the results according with experiments and the study of the others 其次基于最新的kcsa钾离子通道高分辨率的三维晶体结构,建立了一个三态跳跃模型来研究kcsa钾离子通道的通透性,并且首次应用主方程方法描述它的动力学特征,取得了与实验和他人的研究相吻合的结果。