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弹性截面
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     First, according to experimental data of total cross section, elastic scattering cross section, nonelastic cross section and elastic scattering angular distribution of the neutron induced reaction on 135Ba, 136Ba, 137Ba, 138Ba and130Te, two sets of neutron optical potential parameters were obtained by using the program APOM94. The nuclear data determined theoretically by these two sets of neutron optical potential parameters were compared with experimental data, they are in good agreement with the experimental data.
     首先,根据中子入射靶核~(135)Ba、~(136)Ba、~(137)Ba、~(138)Ba和~(130)Te反应的总截面、弹性截面、去弹截面和弹性角分布的实验数据、应用自动调整中子光学势参数程序APOM94分别得到两组中子光学势参数。
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     On the theoretical side, a number of calculations of cross sections, elastic as well as total, for positron-alkali-metal atom systems at intermediate energies have been carried out.
     在中等能量下正电子与碱金属碰撞的弹性截面,总截面已经有理论工作计算出来了。
短句来源
     Nonlinear finite element analysis program of steel-concrete composite beams(NACB20) is worked out using eccentric plate elements and eccentric joint elements. The author carried out nonlinear analysis of composite beams by using the program NACB20 and ANSYS. By calculating deflection under different loads,elastic cross-section rigidity and plastic cross-section rigidity are obtained.
     应用偏心板单元和偏心连接单元编制了钢-混凝土组合梁非线性有限元分析程序NACB2.0,利用NACB2.0及ANSYS进行了组合梁非线性分析,计算了组合梁在各级荷载下的挠度值,确定了组合梁的弹性截面刚度和塑性截面刚度,得出了截面刚度计算公式,并与规范中的换算截面法和现有的试验结果进行了对比.
短句来源
     At incident energies below 10~(-4) cm~(-1),the inelastic quenching cross sections are found to be inversely proportional to the velocity of the incoming Ne atom in agreement with Wigner threshold law,and the elastic cross sections are found to tend to constant limiting values.
     在碰撞能低于10-4cm-1时,弹性截面趋于常数值,非弹性截面随碰撞速度减小线性增加,遵循Wigner定则预言的趋势.
短句来源
  相似匹配句对
     PLANAR VIBRATIONS OF A THIN ELASTIC ROD WITH CIRCULAR CROSS SECTION
     圆截面弹性细杆的平面振动
短句来源
     ELASTIC SCATTERING DIFFERENTIAL CROSS SECTIONS OF FAST NEUTRONS BY Ni
     Ni的快中子弹性散射微分截面
短句来源
     Enumeration of Resilient Functions
     弹性函数的计数
短句来源
     ii. Elasticity.
     (2)弹性空间。
短句来源
     VARIED CROSS-SECTION FET (VCFET)
     变截面场效应管
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  elastic cross section
The diffuse elastic cross section for neutrons is derived as for Huang scattering.
      
The effect of absorption potential is generally to reduce the elastic cross section.
      
A quantal calculation to evaluate theoretically the elastic cross section of electrons scattered by metal clusters is presented.
      
The differential elastic cross section is measured at 50 keV intervals with an ≈20 keV incident neutron energy spread.
      
The velocity dependence of the total elastic cross section has been measured for the scattering of H2, D2, and He beams by Ne, Ar, Kr, and Xe gases.
      
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Using elastic unitary condition of t channel, the double spectral function of photon-nucleon scattering and absorbtive parts of scattering amplitude (s channel) are given. Using date of low energy πN(3,3) resonance ρ resonance, the photo-production cross-sections of γ+q+q+π~++π- are calculated. The results are compared with the recent experimental data.

本文将带区近似法推广到光子-核子散射过程。由t道弹性么正条件导出了光子-核子散射的带区谱函数和s道散射振幅的吸收部分,由此计算了光生π介子的非弹性截面,并与实验作了比较。

Presented here is a discussion on certain elasticity characteristics of air spring and its application to vibration-grinder. Based on experimental results, the characteristic equation of a bag-shaped air spring, the calculation of its stiffness are introduced, and the simplified formulas for calculating the effective section of elasticity and its intensity are proposed. For industrial use, the selection of the air pressure inside the bag of the air spring under normal state is also indicated.

根据试验结果首先引证和导出了空气弹簧的特性方程及其刚度,进而提出有效弹性截面和强度的计算方法。在应用上以MGZ型高效率振动磨机的研制和应用为依据,给出了空气弹簧在标准状态下的气压选择公式,以及在动载状态下气压的控制准则,肯定了空气弹簧作为积极隔振的弹性元件在工程中的地位。

By using ΔE-E telescope and the time of flight detector, the energy spectra of pro-ducts between ~6Li and ~(16)O were measured for the reaction ~(12)C+~(27)Al, at 61.8 MeV. Thecontour plots of differential cross section in c. m. system and the angular distributionsof emitted fragments were obtained. The calculated values of fully relaxed energies indeep inelastic collistions agree with the experimental values. The mean interactiontime of di-nuclear system was estimated as from 1×10-(21)s to 1.4×10~(-22)s.

用△E-E望远镜技术和飞行时间技术对61.8MeV的~(12)C离子轰击~(27)Al靶的反应测量了从~6Li到~(16)O的诸同位素能谱。得到了质心系微分截面等高图及出射碎片角分布。从而得到轻系统深部非弹性碰撞过程的能量全弛豫值,并在耗散模型框架中,通过实验的能量全弛豫值与理论值的比较,得到了出射道的库仑能、核势能与转动能各自的贡献。通过理论拟合角分布,得出双核系统平均相互作用时间在1×10~(-21)—1.4×10~(-22)秒之间,得到了出射碎片分离时的最接近距离的参数值。通过势能面的计算,说明了出射产物产额的变化趋势。并从总产物角分布分解出准弹性截面及深部非弹性截面数值。

 
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