轴量法
- 与 轴量法 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In chapter 4, the in situ measurement system composed of the six-port reflectometer and the coaxial probe is introduced and some guidelines for in situ measurement is highlighted.
第二章建模和计算先对建模方法和反演方法进行了概述,然后建立了同轴探头的谱域全波模型,着重讨论了伽辽金矩量法求解积分方程有关的积分计算问题,分析了同轴探头高次模式的影响,最后给出了波导探头的谱域模型。
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Both the offset and tilted fedcoupling-slot array between the curved guide and sectoral guides and longitudinal radiating-slot array on sectoral guide are analyzed by moment method, taking into account of the effects of finite wall thickness and mutual coupling between the slots, employing the acceleration algorithms to accelerate the summation of slowly convergent series of the self-admittance of the waveguide-slot aperture, and introducing the surface Fock functions to simplify the computation of the self-and mutual coupling of the slots on the surface of cylinder.
采用矩量法分别分析弯波导与扇面波导间偏置倾斜馈电耦合缝阵和扇面波导轴向辐射缝面阵,其中计及有限波导壁厚及缝间互耦的影响,运用级数加速算法对波导中自导纳矩阵元级数进行加速处理,并引入表面Fock函数简化圆柱面上缝口面的自耦和互耦的计算。
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At first in the preliminary design this paper computes the linear damping coefficient of the viscous damper employed in this project using Composite Response Spectra approach, meantime, this paper proves that reducing the exponent of velocity of the piston can increase the magnitude of the dissipative energy, because of the viscous damper employed in the practical project character nonlinear behavior; next this chapter performs analysis and comparison between the building without and with the viscous dampers aforementioned when the building suffers from various Time Domain Response, from the angle of displacement, interstroy drift, velocity, interstory velocity, acceleration, energy, maximum axial force of the dampers and of the column etc., in order to prove that the incorporating the viscous dampers into the buildings has great superiority on enhancing its aseismic performance ; furthermore, this chapter also expatiates on diverse assembly form of the viscous dampers that results in the adverse impact on the internal force of the structural member in this building, on the ground of which this segment bring about the preference of the assembly form of the viscous damper; finally this chapter points out the sphere of application of the analysis and computation using Composite Response Spectra approach in design: it is available in well-proportioned stiffness structures and isn抰 available in the structures that contain weak story. It is recommendable, particularly, to incorporate the fluid viscous dampers into this structure that contain weak story to refrain earthquake and reinforce, such as the Central Hall of Shanghai Exhibition Hall.
首先使用了反应谱分析法设计出欲附设的粘滞阻尼器的线性阻尼系数,由于实际工程所用的粘滞阻尼器具有非线性的特性,故而笔者又证明了降低速度指数对提高粘滞阻尼器的耗能量的优势所在;接着分别从位移、层间位移、速度、层间速度、加速度、能量、最大阻尼出力和柱轴力等不同的角度对结构在附设粘滞阻尼器前后的时程反应进行了分析对比,籍此在实际工程中证明了附设粘滞阻尼器对于提高结构的抗震性能的优越性;再者,笔者还阐述了采用不同的粘滞阻尼器布置方式对结构中构件内力特别是柱轴力和基座竖向反力产生的不利影响,并在此基础上提出了布置方式的优选;最后,指出了反应谱法在设计中的适用范围:对于均匀结构反应谱法能够使用,而对于含有薄弱层的结构反应谱法并不适用;对于类似于上海展览馆中央大厅的含薄弱层的结构尤其值得使用粘滞阻尼器的方法进行抗震加固。
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Take DMSO swollen treatment and DEA-SO2-DMSO decrystallization treatment for example, the X-ray diffraction and the Tobolsky's intermittent stress relaxation of treated woods were determined during soaking in water, analyzed the effects of water on crystal degree and inter-cohesion of treated woods. According to these continuous relaxation curves measured in water with different temperatures, various thermodynamic quantities were obtained by using Eyring absolute rate theory, and reviewed the chemical reactions in wood which occur in different relaxation process. For the first time quantify these crosslinkings formed in the process of tensional relaxation by using the SMCIR intermittent stress relaxation way, and defined the cross-linking reaction types. In order to find out the contribute of drying to the fixation of deformation of chemically treated wood, stress relaxation of oven-dry untreated and treated wood was measured during the process of temperature elevation and descend, then analyzed the effect of temperature change on relaxation mechanism of treated oven-dry wood. According to continuous relaxation curves of oven-dry treated wood under various constant temperature, calculated the thermodynamics of relaxation process and discussed the mechanism of molecule change in wood, at the same time, also quantified these cross-linkings produced in wood by intermittent method and on the basis of which the model of molecular change during relaxation process of chemically treated was constructed.
以DMSO膨胀处理及DEA- SO2-DMSO非晶化塑化处理为例,测定了两种处理木材在水浸渍过程中的X射线衍射及Tobolsky间歇应力松弛,分析了水对处理木材结晶度及内部凝聚力的影响;通过未处理和两种处理木材在不同温度水中的连续应力松弛测定,应用Eyring的绝对速度反应理论计算并获得了松弛过程中的各热力学量,分析了在水中松弛过程中不同阶段木材内部发生的化学反应;并首次采用SMCIR连续·不连续双曲线应力松弛法定量了轴向拉伸应力松弛过程中木材内部产生的架桥量,明确了交联反应的类型;为了了解干燥对处理木材塑性变形固定的影响,测定了未处理和两种处理绝干木材在温度下降过程和上升过程中的应力松弛,分析了温度变化对处理绝干木材应力松弛的影响;根据多个温度水平下的连续应力松弛测定曲线,计算松弛过程的热力学量,考察了绝干木材在松弛过程中内部发生的分子变化机理,同时也用间歇法定量了木材内部新形成的架桥量,并在此基础上构筑处理木材在松弛过程中内部分子构造的变化模型。
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And the emeraldine salts (ES2) of polyaniline were prepared by emeraldine base form of polyaniline doped with different acid dopants at room temperature. The structure and morphology of ES1 and ES2 were characterized by Fourier transform infrared spectrometer, Ultraviolet-Visible spectrophotometer and wide angle X-ray diffactometer, respectively.
并藉由傅立叶红外线光谱仪结构之鉴定,四点导电度计体积电阻之测定,黏度法重量平均分子量之量测,元素分析仪元素掺杂比之测定,紫外线-可见光光谱分析仪吸收波长之解析,X-ray绕射分析仪分子形态之分析,低频/高频阻抗分析仪介电行为之探讨,以及同轴量测系统电磁波遮蔽效应等之量测。
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Observe the tectological changes of the poroma, count the number of osteoblasts, determine the ratio between trabecula and marrow in the trabecula area of the newly born bone.
以三维有限元法分析肱骨中段横形或斜形骨折在骨痂同样充满断端、骨痂力学性能相同,分别在肢体远端纵轴、水平轴和矢状轴方向上施加相同载荷的条件下,比较两种骨折断端间的最大应力值和最大位移量,及肢体远端的最大位移量。
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Firstly, we research the Vlasov antenna with reflector mainly. A new method to calculate the radiation of the antenna is founded with Vectorial Theory of Diffraction, and the corresponding program is made. The reflective characters of Vlasov antenna are studied with Moment Methods, and the results show that the total reflected energy is less than 0.25%. The radiation patterns of the antenna are analyzed, and the formulas to estimate the wave beam parameters and to design the antenna are provided. The feasibility of radiating high-order modes by Vlasov antenna is also discussed and verified. The hermetization of the Vlasov antenna is researched and the results show that with such kinds of hermetization the antenna can work under gigawatt level. The design of the mode converter from TEM to TMoi is studied, which is useful when the TEM coaxial mode is radiated by Vlasov antenna. At last, the flared-end Vlasov antenna is also discussed.
在Vlasov天线方面:用矢量绕射理论建立了天线辐射场的计算模型并编写了计算程序,该程序计算结果在主瓣上与实验测量吻合良好,近旁瓣也基本一致;利用矩量法计算了天线的反射系数,表明该天线有较小的反射,总的能量反射小于0.25%;详细分析了天线的辐射特性,给出了天线辐射波束相关参数的估算公式和天线设计公式;进一步研究和论证了Vlasov天线辐射高阶轴对称模的可行性;对天线的密封方式和功率容量进行了讨论,结果表明在不需很大密封罩的情况下可以获得GW级的功率容量;为了用Vlasov天线辐射同轴TEM模,研究了TEM-TM_(01)模式转换器的设计,得到了一些基本规律;最后,介绍和分析了带有锥形喇叭的Vlasov天线。
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The theoretical results of the radiation characteristics such as input impedance,gain and axial ratio of circular polarization are given,which are validated by experimentation.
基于矩量法的分析途径,本文提出了计算矩形腔十字裂缝天线的数值方法,给出天线单元的输入阻抗、增益和轴比等辐射特性的数值结果,并进行了实验验证。
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The axial fixed position preload is applied to middle ring of the shaft,the axial rigidity of the angular contact ball bearing is obtained by the impulse excitation tests.
对转台中环主轴施加轴向定位预紧力,通过脉冲激励法试验得到角接触球轴承的轴向刚度,试验结果与理论结果吻合较好,为转台研制中各轴系预紧量的控制提供了理论和实验依据。
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As a first step to industrialize this focusing coal liquefaction technology, it is essential to study the multiphase transport characteristics of this new type reactor. In this paper, mass transfer and mixing characteristics of a three-phase continuous loop reactor with a concentric draft tube were measured by the dynamic dissolved oxygen and saturated KCl solution pulse trace methods,with glass beads as solid phase, air as gas phase and tap water as liquid phase, respectively.
本文在同心内置Φ 0.14×1.5m导流筒的Φ 0.2×2.5m有机玻璃环流反应器中,以空气和水为气、液相,玻璃珠为固相,分别利用动态溶氧法与饱和KCl脉冲示踪法测量了液相体积传质系数和轴向分散系数,考察了表观气速、进料浆速、固含率、固相颗粒直径、液相表面张力以及操作方式对上述两个传递参数的影响规律,并将实验结果关联为量纲为1关联式;同时,根据环流反应器的结构特点,建立了传质系数分区模型和轴向分散系数分区模型且分别获得了解析解,对床层传质和混合的不均匀性做了理论分析。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力