The results show that the base width correlated with base resistance and current gain is one of the key factors for the optimum design of the device. 结果表明,与基极电阻和电流增益相关的基区宽度是器件优化设计的重点之一。
Design and Construction on a Large-scale Model Test on Variable Rigidity Design Method for Balance Settlement and Interaction between the Pile Shaft Resistance and the Base Resistance 变刚度调平设计和桩侧阻端阻相互作用大型模型试验设计与施工FRP层合板刚度退化的细观力学模型
It is deemed that there is an interaction between the pile shaft resistance and the pile base resistance, the enhancing response is ubiquitous for the pile shaft resistance around the pile end and intensifies with increase of soil strength underneath a pile. 作者认为,桩侧阻力与桩端阻力之间存在相互作用,桩侧阻力在桩端附近局部的增强效应是普遍存在的,并且随桩端土层强度的提高而提高;
And the mechanism reducing base resistance is studied in depth, the technology way reducing base resistance is discussed in theory. 同时对底排减阻机理进行了较为深入研究,从理论上探讨了降低底阻的技术途径;
The emitter-base junction capacitance of the FFJ is only decided by it's emitter doping profiles, so that both smaller base resistance rb and higher emitter cutoff frequency can simultaneously be obtained. 由于FFJ的发射极-基极结电容仅仅取决于它的发射极掺杂情况,因此,可以同时得到较小的基极电阻rb和较高的发射极截止频率f(TE)。
At the same time, size effect of base resistance and depth effect of shaft resistance in pile-rock interface are discussed. 同时,对桩端尺寸效应及侧阻深度效应进行了初步的探讨。
The ratio of base resistance of S1 to the total load is 22.46%, this pile is a friction-base pile; S1的端阻力占总荷载的比例为22.46%,为摩擦端承桩。
On the basis of experimental data the socket length, base resistance and shaft resistance of rock-socketed piles have been analyzed. 结合试验资料对嵌岩桩的嵌岩深度、端阻力以及桩侧阻力进行了分析。
Combined with the state of current market, a few new technologies of aluminium and its alloy surface treatment are simply introduced, which include nitro-fume free chemical polishing, unlimited temperature swift anodic oxidization, rough surface treatment, colouring anodized coating, base resistance high reflectivity sealing. 结合当前市场情况,介绍了铝和铝合金表面处理行业的新工艺,它包括无黄烟抛光工艺、宽温快速阳极氧化工艺、砂面处理工艺、彩色着色与染色工艺、耐碱增光封闭工艺。
In order to reduce base resistance and mitigate carrier freeze out at low temperatures, the base concentration can be increased. 为减小基区电阻和防止低温载流子冻析,可增加基区浓度。
UV-cured films of the said two kinds of PUA resins have good water resistance, solvent resistance and acid resistance, but strong base resistance thereof is on general level. 上述水性光固化树脂固化膜具有良好的耐水、耐溶剂和耐酸性,但耐强碱性一般。
This paper bases on the test data of a great volume of large-diameter pile, The behavior of the shaft resistance and base resistance and settlement of large-diameter pile is analyzed. 根据作者所做的大直径桩试验及收集来的大量大直径桩静载荷试桩资料,本文系统研究了大直径桩侧阻力与端阻力的性状,及侧阻力、端阻力与沉降的关系。
Considering the nonhomogeneous diffused layers, the design formulas for squeezed resistance in integrated circuits and base resistance in transistors are represented by average mobility of carriers. 考虑到扩散层的不均匀性,推导出了用平均迁移率表示的集成电路挤压电阻器和晶体管基极电阻的设计公式。
Research on the Shaft Resistance, Base Resistance and Settlement of Large-Diameter Pile 大直径桩侧阻、端阻及沉降研究
Compared to the traditional fabrication, ion implantation can reduce the extrinsic base resistance, the buried metal self-aligned technique can decrease the contact resistance of the electrode lead and reduce the area of the electrode mesa. 与传统制作方法相比,前者可减小外基区电阻,后者可以减小电极接触电阻,并能使器件的台面面积做得更小。
These factors, which include slurry's preparation, circulation, depuration and so on, would influence drilling speed, bore quality, exertion of pile shaft resistance and base resistance. 泥浆制备、循环、净化等因素的好坏直接影响到钻进速度和成孔质量、桩侧摩阻力及桩端阻力的发挥。
The axial capacity of single pile includes point or base resistance and side resistance. 桩的轴向承载力是由桩端阻力和桩侧摩阻力共同构成的。
The ohmic base resistance of bipolar transistor introduced in EM_2 Model is a very important parameter. 在双极型晶体管EM2模型参数中引入的基极电阻r'b是重要的也是较难测量的参数之一。
The post-grouting technology is one of the methods to increase the base areas and base resistance pressure. 桩端后注浆技术是增加桩端面积及提高桩端面上的单位面积阻力的方法之一。
A theoretical model is presented to determine the current dependence of base resistance RB ( IB) of bipolar transistor at high current, based on the effect of base conductivity modulation. 本文针对基极电阻随电流变化的实验事实,根据基区电导调制效应,提出了工作在大电流密度水平时,基极电阻RB(IB)的理论模型;
The improved method effectively eliminates the inherent systematic error of original method, and gets the base resistance simultaneously. 改进后的方法有效消除了原方法固有的系统误差,并且同时提取了基极电阻。
Testing base resistance r_ ( bb) of transistor 晶体管基区电阻r(bb)的测试
In this paper, the influencing factors such as characteristic of soils, intensity of rock, the depth of rock-socketed, the ratio of pile and rock module which has effect in the shaft resistance and base resistance are studied. 本文从影响嵌岩桩承载力的主要因素入手,分别讨论了上覆土层特性、基岩岩性、嵌岩深度、桩岩模量比等因素对嵌岩桩桩侧阻力和桩端阻力的影响。
The membrane prepared on the basis of the researches has the advantages of strong ability of acid and base resistance and wide range of suitable temperature. 在此基础上研制的此种膜具有强的耐酸碱腐蚀能力和宽的温度适应范围;
The second is, according to concept of ultimate bearing capacity, that pile shaft and base resistance can be made full use owing to pile's lengthening. 按极限荷载的定义,桩长伸长能充分发挥桩身承载力和桩底承载力;
The quasi-planar structure and low base resistance feature this device. 准平面和低基区电阻是该设计的主要特点。
Moreover, the series resistance at the base resistance Rb will weaken the capability of the device to withstand microwave damage. 同时,基极串联电阻Rb将会减弱器件的抗微波损伤能力。
With results of the model tests, the circular-pile and the pile with screws were compared in characters such as loading-settlement relationship, distribution regulations of the axial force, friction resistance and the base resistance. 对比分析了直线型桩和全螺旋模型桩的荷载&沉降关系、桩身轴力分布规律、桩侧阻力的分布和传递规律以及桩端阻力的发挥特征。