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beams
相关语句
  
     Nonlinear Dynamics of Flexible Beams Undergoing a Large Overall Motion
     大范围运动柔性非线性动力学
短句来源
     Experimental and Theoretical Study of Transferring Structure for Steel Reinforced Concrete Beams
     型钢混凝土式转换框架结构的试验和理论研究
短句来源
     Dynamical Analysis of Transverse Vibrations of Axially Moving Viscoelastic Beams
     轴向运动粘弹性的横向振动分析
短句来源
     Finite Element Modeling and Analytical Study on the Behavior of Beams Prestressed with Unbonded Tendon
     无粘结预应力的有限元建模与性能分析研究
短句来源
     Service Behavior of Steel-Concrete Composite Box Beams and Triaxial Nonlinear Analysis
     钢—混凝土组合箱受力性能及空间非线性分析
短句来源
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  光束
     Study on the Beams Quality of Nonparaxial Scalar and Vectorial Beams
     非傍轴标量和矢量光束光束质量研究
短句来源
     Study on the Propagation Properties and Anomalous Spectral Behavior of Ultrashort Pulsed Beams
     超短脉冲光束的传输特性和光谱异常行为的研究
短句来源
     Dynamic analysis on transmissions of paraxial light beams
     傍轴光束传输的动力学分析
短句来源
     Lamb's theory of traveling-wave Gaussian beams and output expressions of ring lasers considering the radial distribution
     行波高斯光束Lamb理论及考虑径向分布的环形激光输出表达式
短句来源
     Research on the behavior of Gauss light beams in CO_2 laser
     组合式CO_2激光器中高斯光束行为的探讨
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  “beams”译为未确定词的双语例句
     Linear Elastic Theory and Ultimate Load Carrying Capacity Analysis of Thin-walled Curved Beams
     薄壁曲梁线弹性理论和弹塑性稳定极限承载力分析
短句来源
     Analysis on Mechanical Behavior of Reinforced Concrete Beams with Externally Bonded CFRP
     碳纤维加固钢筋混凝土桥梁复合结构的力学行为分析
短句来源
     Study of Experimental and Nonlinear Analysis Method on Conglutinated Steel Reinforced Concrete Beams and Columns
     粘钢加固梁柱试验及非线性分析方法研究
短句来源
     Experimental Research and Design Theory of RC Beams Strengthened by Pre-Stressed FRP Sheet
     预应力FRP加固混凝土受弯构件试验及设计理论研究
短句来源
     ON THE MATRIX THEORY OF CONTINUOUS BEAMS ON ELASTIC FOUNDATION
     弹性基礎上的连续樑的矩阵理论
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  beams
The sensitive unit of the accelerometer is the metal-oxide semiconductor (MOS) ROs located on silicon beams.
      
By using Mie's theory, the boundary conditions, and some advanced mathematical knowledge, the scattering problem of a plane-wave by bi-sphere groups and of cores-traversed coherent Gauss-beams by one sphere was addressed.
      
Coincidence imaging and interference with coherent Gaussian beams
      
we present a theoretical study of coincidence imaging and interference with coherent Gaussian beams.
      
The nature of the coincidence imaging and interference between quantum entangled photon pairs and coherent Gaussian beams are different.
      
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With γ-rays of various wave-lengths the number of counts produced in a Geiger-Muller counter of Pb-wall was determined in equal time intervals. The same experiment was carried out with a counter of Al-wall. Let Npb and NA1 represent the number of counts produced in the Pb-counter and Al-counter respectively by a beam of γ-rays of even wave-length in a given time interval. The ratio Nph/NA1 observed decreases at first with the wavelength of the incident beam due to the diminishing photo-electric of...

With γ-rays of various wave-lengths the number of counts produced in a Geiger-Muller counter of Pb-wall was determined in equal time intervals. The same experiment was carried out with a counter of Al-wall. Let Npb and NA1 represent the number of counts produced in the Pb-counter and Al-counter respectively by a beam of γ-rays of even wave-length in a given time interval. The ratio Nph/NA1 observed decreases at first with the wavelength of the incident beam due to the diminishing photo-electric of lead. It is, however, found to increase by 16% when the wavelength of the incident radiation is decreased from a value 6.6 x. u. 4.7 x. u. This rising is due to particles produced by the interaction of hard γ-rays with the Pb-nuclei.

能力极大的丙种镭辐射,可以影响原子核,这是新近发见的事实。为进一步的研究,我们把极硬的丙种镭辐射,照在铅的数电子管(Electron Counter)上结果:除了射出的光电子和反跳子(Compton RecoilElectron)外,还观察到一种电子(有阴阳二种),约占总数的百分之十七。这种电子的来源,现在有两种解释:1从原子核里射出。(2)直接由丙种镭辐射变成。

A method based upon simple diffraction theory is described for the calculation of modified paraboloid reflectors to produce from a point source a shaped beam of arbitrary shape in one plane and uniformly narrow in the perpendicular planes. A specific application of the shaped beam antennas is in connection with radar antennas designed for height finding. In this case the antenna must have a sharp elevation beam for obtaining precise elevation information and a rapid elevation scan. The beam...

A method based upon simple diffraction theory is described for the calculation of modified paraboloid reflectors to produce from a point source a shaped beam of arbitrary shape in one plane and uniformly narrow in the perpendicular planes. A specific application of the shaped beam antennas is in connection with radar antennas designed for height finding. In this case the antenna must have a sharp elevation beam for obtaining precise elevation information and a rapid elevation scan. The beam must be relatively broad in azimuth in order that the target will be held in the beam long enough to obtain height information. If a fixed minimum of illumination is to be achieved at a given linear distance on both sides of the center line of the azimuth beam, the amplitude pattern must have the so-called "double cosecant" or "beavertail" shape.

本论文讨论如何利用简单衍射理论,计算改良抛物面反射器天线幅射之图型。此反射器可将一无方向性辐射源之能量聚集于任何形状之波束中。此原理可以应用在地面上或船面上寻求飞机高度雷达天线之设计。在此类雷达中,天线之方位图型必须为“双馀割平方”式;其特性为自波束对称轴线起,至其两端,辐射一次路程之功率,与方位角之馀割平方成正比。得此图型之最简易方法为置一狭窄之铅垂金属条于一截形抛物面反射器之中心,金属条之宽度,可改变波束之方向性;其支距,即金属条与反射器之距离,可影响两反射波之位相。故改变金属条之宽度及其支距,可得欲得之图型。 利用衍射及干涉理论,计算金属条及截形抛物面所生之总图型为:在方位面内,幅射强度J_H与水平角θ之关系为: J_H =AA[sin~2(15πsinθ)/(15πsinθ)~2-2(1-cosπ/4)sin(2πsinθ)/2πsinθ(sin(2πsinθ)/2πsinθ-sin(15πsinθ)/15πsinθ)]A为辐射波振幅,A为A之复共轭数。计算之结果与实验之结果,颇为一致。

Single storied industrial buildings composed of steel trusses and reinforced-concrete columns are very common. As the upper joints are hinged, the stresses in the columns are not influenced by the elastic properties of the trusses; while the upper joints are rigid, methods of analysis are usually based on the assumption that the moment of inertia of a steel truss may be taken as equivalent to that of a beam. In this paper, the author making use of the principle of least work reviews the equations for calculating...

Single storied industrial buildings composed of steel trusses and reinforced-concrete columns are very common. As the upper joints are hinged, the stresses in the columns are not influenced by the elastic properties of the trusses; while the upper joints are rigid, methods of analysis are usually based on the assumption that the moment of inertia of a steel truss may be taken as equivalent to that of a beam. In this paper, the author making use of the principle of least work reviews the equations for calculating the angle-changes at the ends of a truss, and then illustrates their applications with two practical examples: one with flat roof and the other with gabled-roof. They are solved respectively by the method of slopedeflection for the cases of no-sidesway, sidesway-correction and sidesway included by solving the elastic equations of unit deformation. The results are compared with those obtained with usual assumptions.

單層廠房採用鋼架砼柱之混合結構,極為普遍,上端鉸結時柱之應力並不受桁架彈性常數之影響,上端剛結時之分析方法,對於鋼架之截面慣矩每予假定,並代之以假想變梁,本文作者用最小功能定律以求計算桁架兩端角變常數之公式;再取二實例:一平頂屋架,一脊式屋架,用角變位移法分就無側欹、侧欹校正及單位變位彈性方程解三步驟解出共結果,與一般假定方法所得相互比較。

 
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