2) periodic boundary condition
周期性边界条件
1.
aminotrimethylene phosphonic acid(ATMP),methylaminodimethylene phosphonic acid(MADMP),glycin dimethylene phosphonic acid(GDMP),ethylenediaminetetramethylene phosphonic acid(EDT- MP),1-hydroxyethylidene-1,1-diphosphonic acid(HEDP),1-aminoethylidene-1,1-diphosphonic acid(AEDP)and the(104)face of calcite crystal have been simulated by density functional theory under the periodic boundary condition.
用周期性边界条件下的密度泛函方法,模拟计算了6种有机膦酸阻垢剂[氨基三亚甲基膦酸(ATMP)、甲胺二亚甲基膦酸(MADMP)、甘氨酸二亚甲基膦酸(GDMP)、乙二胺四亚甲基膦酸(EDTMP)、羟基亚乙基二膦酸(HEDP)、氨基亚乙基二膦酸(AEDP)|与方解石(104)晶面的相互作用。
2.
Numerical simulations were used to simulate the temperature of liquid-jet at periodic boundary condition.
用数值计算的方法模拟了周期性边界条件下形状记忆合金温度场的分布情况,主要研究了射流速度、喷距以及射流周期对形状记忆合金的温度随时间的瞬态变化规律。
3.
The FDTD combined with periodic boundary condition (PBC) and absorber boundary condition (ABC) becomes the accurate and efficient tool for various periodic structures.
FDTD方法与周期性边界条件、吸收边界条件结合 ,构成分析各种周期性结构电磁特性准确、有效的通用工具 。
3) periodic head boundary
周期性水头边界
4) periodic boundary
周期边界
1.
The periodic boundary condition is constructed with Floquet theorem.
由Floquet定理建立了周期边界条件。
2.
The conservative form and singular perturbed ordinary differential equation with periodic boundary value problem were studied, and a conservative difference scheme was constructed.
研究守恒型奇摄动方程的周期边界问题 ,构造了一个守恒型差分格式 ,利用分解解的奇性项的方法 ,结合问题的渐近展开 ,证明所构造的差分格式为一阶一致收敛
3.
This paper, considers conservative equation with periodic boundary value problem, and construct a difference scheme, Uses the method of decomposing the singular term from its solution and combining an asymptotic expansion of the equation, proves that the scheme converges uniformly to the solution of differential equation with order one.
研究守恒型奇振动方程的周期边界问题，构造一个差分格式，利用分解解的奇性项的方法，结合问题的渐近展开，证明所构造的差分格式为一阶一致收敛。
6) nonperiodic boundary condition
非周期性边界条件
1.
Based on the theory of quantum exchange interaction, the eigenvalue problem and the existence conditions of the spin waves in a symmetrical ferromagnetic bilayer film are investigated under the nonperiodic boundary condition by the interfacerescaling approach.
采用界面重标度(IR)方法,研究了非周期性边界条件下,双层铁磁薄膜中自旋波的本征值问题及对称薄膜中自旋波的存在条件;并计入体单轴各向异性,讨论了其对对称铁磁薄膜中自旋波色散关系及波形的影响,结果表明:在完全对称情况下,该系统除了可能存在一支光学—光学界面模外,只存在体模一种形式。
2.
A symmetrical ferromagnetic bilayer film is investigated under the nonperiodic boundary condition and considering anisotropic field at two surfaces,by using the rescaling interface approach.
在非周期性边界条件和在考虑表面各向异性场的情况下 ,应用界面重参数化方法精确求解了两层对称铁磁薄膜中的低能自旋波本征问题 。
3.
In this article,based on one-dimension Heisenberg model,the unsymmetric bilayer ferromagnetic and antiferromagnetic thin films are investigated by using the interface rescaling approach under nonperiodic boundary condition.
以海森伯模型为基础,只考虑最近邻相互作用,在计入外磁场和非周期性边界条件下,应用界面重参数化(IR)方法,讨论了体各向异性场对界面自旋波存在条件的影响,结果发现:不管耦合多弱都会存在声学-声学型界面自旋波;若存在能隙,随着各向异性场的变化还会存在声学-光学型界面自旋波和光学-声学型界面自旋波。
补充资料：低血钾性周期性麻痹
低血钾性周期性麻痹
hypokalemic periodic paralysis
家族性周期性麻痹中的一种类型。为常染色体显性遗传。在我国大多数病例为散发而无家族史。发作多在夜间或清晨醒来时，病儿发觉不能移动自己的肢体，但说话和呼吸正常，重症四肢完全不能活动，不能抬头。发作时肌肉呈弛缓性麻痹，腱反射消失，感觉正常。麻痹持续数小时至2天。发作频度不等，一般不多于每月1次。发作时血清钾减低，为2.5～3.5mmol/L，心电图有低血钾表现。治疗发作时给一次氯化钾口服；重者可静脉滴注氯化钾，同时心电监护以防高钾血症。预防发作可于每晚睡前服氯化钾一次。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条