According to the critical field approximation at breakdown for a cylindrical junction, the optical design way with ring spacing is researched. 在纵向结深和掺杂浓度一定的条件下,根据临界电场击穿理论,讨论环间距的优化设计方法。
The numerical results show that the randomness of the width of fissure has a greater effect on seepage field than that of the trace and the spacing of fissure. 数值分析表明:隙宽的随机性对渗流场的影响最大,裂隙的迹长次之,间距的影响最小。
It's an effective method to obtain reasonable solidification structure by computing temperature field and the secondary dendrite arm spacing using mathematical model. 通过数学模拟计算凝固过程的温度场,进而计算二次枝晶间距是获得合理凝固组织的有效手段。
The text field to the right of the check box allows you to alter the spacing of the labels. 右边的文字框用于确定标注的时间间隔。
From the viewpoint of the flow field distribution features an analysis is conducted of the effect of blade spacing and cover ratio on air flow and gas solid separation. 并从其流场分布特点的角度分析了叶片间距、遮盖度对气流流动及气固分离的影响。
The strong probe field is coupled to the strong transition and creates two dressed states, the level spacing of which is far larger than the atomic decay rates. 强探测场与弱跃迁进行共振耦合产生两个修饰态,修饰态间距远大于原子衰减速率。
A Simple Method for Calculation of Field Drain Spacing for Groundwater Level Control 控制地下水位的田间排水沟间距简捷计算方法
It is useful to optimizing 2D transducer parameter for ultrasound imaging by simulating the sound field. We analysis the effect of frequency characteristic, array element size, spacing and number of element on the beam property of such 2D transducer arrays. 研究了宽带2D阵列波束的频率特性,并对阵列阵元尺寸和阵元数对波束特性的影响效果进行了研究。
A New Analytical Model for Predicting Distribution of the Ring Junction Voltage, Edge Peak Field and Optimal Ring Spacing of Planar Junction 场限环结构电压和边界峰值电场分布及环间距优化
At a given electric field intensity when the wire-wire spacing is 0.6-1 times that of the wire-plate, the utilization of pulsed energy by the reactor will reach a maximum value. 在电场长度一定下,线线间距为线板间距的0.6~1倍时,反应器对脉冲能量的利用达到最大。
In this paper, we studied the breakdown characterists of P+ N diode with field ring and field plate experimentally and presented the curve revealing relationship among optimal spacing between field ring and main junction, substrate density and junction depths. 本文从实验的角度研究了具有场板和场限制环的P+N二极管的击穿特性,给出了场环至主结的最佳间距与衬底浓度和结深的关系曲线。
The results of numerical simulation show that the average electric field strength between the wire and plate increases with the discharge wire diameter, and the optimized wire-to-wire spacing is 0.6-1 times the wire-to-plate spacing. 数值模拟显示增大放电线直径可以提高线板间的平均电场强度:线线间距选择范围为0.6-1倍线板间距时反应器电场符合流光的形成、发展与传播条件,此配置为最优的线板配置。
In ordinary field 3-D layout, receiving-line spacing is n-times the seismic source gap, and source-line spacing is n-times the receiver interval; as a result, at each intersecting point of source line and receiving line, source position superposes receiver position. 在常规三维观测系统中,接收线间距是震源间距的倍数,震源线间距是接收器间距的倍数,这使得在震源线和接收线的每个交点处震源和接收器是重合的。
Through a lot of small scale simulated tests in construction field, this paper systemically analyzed the dependence of the open area and visible depth of blasting craters, the thrown distance and the accumulation state of rock on the row spacing and the column spacing of plane charge. 本文通过在施工现场进行的大量小型模拟实验,对平面药包间、排距与爆破漏斗的开口面积、可见深度、爆岩的抛掷距离和堆积形态等关系进行了系统分析与研究。
Based on factory and field parameter distributions, a statistical design for the repeater spacing of 140Mbit/ s single mods fiber systems is presented. 本文根据实际的光功率概算参数分布,用统计法对140Mbit/s单模光纤系统的中继距离进行了设计。
Simplified Calculation of Field Drains Spacing in Evaporation Condition 有蒸发作用时田间排水沟(管)间距的简化计算
According to the field observation and model test data of ground water drawdown speed and the ratio of drainage water quantity and evaporation, by using the theory of ground water seepage, a new method for determining the field drain spacing is advanced. 本文根据地下水蒸发试验资料,利用地下水动力学理论,提出了考虑蒸发影响下按地下水位下降速度标准进行田间排水沟(管)间距的计算方法。
Calculation of Field Drain Spacing in Consideration of the Influence of Evaporation and Desalinization Requirement 考虑蒸发影响和脱盐要求的田间排水沟(管)间距计算
By small-scale simulating tests in a field, the size and depth of blasting cone from plane charges, the thrown piling and reasonable spacing and inter-row distances of charges were systemically studied. 本文通过现场小型模拟试验,对平面药包的爆破漏斗大小与深度、抛掷堆积规律以及合适的药包间、排距进行了系统研究与分析。
A new analytical model for predicting the distribution of the ring voltage, edge peak field and optimal spacing of the planar junction with a single floating field limiting ring structure is presented, based on the cylindrical symmetric solution and the critical field concept. 采用与平面结物理机理最接近的圆柱坐标对称解进行分析,提出了平面结场限环结构的电压分布和边界峰值电场的解析理论。
Effect of Electric Field on the Al-Cu Eutectic Interlamellar Spacing 电场对Al-Cu共晶片间距的影响
Based on the better layer wellbore information in north-ⅱ-west area, author develops expansion ternary eutectic field experiment of weak alkaline system of the better layer, and explores the reasonable well network, spacing and multiple combination method, researches remaining oil distribution. 利用北二区西部二类油层聚驱井筒资料,开展二类油层弱碱化体系扩大规模的三元复合驱矿场试验,探索合理的井网、井距及层系组合方法,进行剩余油分布研究。
In the different magnetic field, we calculated the nearest energy space level statistic, we find that the nearest energy level spacing follow the Poisson distribution, so it is still an integrable system when applied external magnetic field for the higher symmetry circular quantum billiard system. 对不同磁场下的能量本征值进行能级统计分析发现最近邻能级间隔分布符合Poisson分布,说明对称性比较高的圆形量子台球即使在加外磁场以后仍然是可积体系。
Based on the size of optimization design, magnetic field leakage curves of different magnetization unit number, structure spacing were gained. 基于优化设计的结构尺寸,通过计算得到不同磁化单元个数、磁化结构间距漏磁场分布曲线,对比分析由于多个磁化结构的引入所引起的缺陷漏磁场叠加规律、各磁化单元间的相互影响。
Especially, the influences of the several factors on both the electric field distribution and the radio interference characteristics have been systematically analyzed. These factors include the center spacing, the line height relative to ground, the bundle spacing, and sub-conductor radius. 此外,对交直流线路中心间距、对地高度、导线分裂间距以及子导线半径等因素对混合电场和混合无线电干扰的影响作了系统的计算分析。
Strong magnetic field increases the size of pearlite colonies while decreases the interlamellar spacing. 强磁场使得珠光体团簇增大,珠光体片间距减小。
Analysis showed that the array can obtain more gain of array with baffle than in the free field, when array and rigid baffle spacing, signal frequency and incident angle meet certain conditions. Finally, the paper dealt with the data of experiments. 分析表明,阵列与刚性障板在满足一定的间距、频率、入射角度条件时,可以得到比自由场中更大的阵增益。