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本文推导了硬币在不同环境下的基本运动方程,分析了硬币的绕圈运动问题,并利用其结果讨论了两种特殊的运动模式,最后用计算机模拟的方法进行了验证. 相似文献
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模拟法指的是以相似理论为基础,不直接研究自然现象或过程的本身,而用与这些自然现象或过程相似的模型来进行研究的一种方法.当前物理实验中的模拟基本上可分为以下二种类型:(1)物理模拟.物理模拟就是指两个不同本质的物理现象或过程,当可用同一个数学方程来描述,就可用其物理现象或过程来模拟另一物理现象或过程.例如,静电场的电位与电流场的电位具有相同的数学表达式,故常用稳恒电流场模拟静电场.(2)计算机模拟(数学模拟).本质上是对某物理现象或过程建立数学模型,再借助计算机技术来模拟物理实验中所发生的物理过程的方法. 相似文献
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讨论了两列相向而行、振幅随传播距离增加而线性衰减的相干波叠加后的数学形式,并用计算机模拟了计算结果,得到稳定的驻波波形. 相似文献
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根据几何光学中的光线方程,推导出了折射率跃变界面处光折射的代数方程,依据该方程讨论了球面界面的"焦点"、"焦距"问题并用计算机进行了模拟.该方法对学生理解光的传播行为及提高几何光学的教学效果有帮助. 相似文献
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计算机模拟光源的非单色性对迈克尔孙干涉条纹可见度的影响 总被引:3,自引:1,他引:2
通过开发的“迈克尔孙模拟实验平台”中的数值模拟和实验现象模拟,讨论分析了光源的非单色性对迈克尔孙干涉条纹可见度的影响,用直观的计算机图形将抽象的光的时间相干性理论形象化,从而弥补了光学实验教学中的理论欠缺和理论教学与实验相脱节的不足. 相似文献
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高Verdet常数的Tb3+铝硼硅酸盐玻璃 总被引:1,自引:1,他引:0
本文研究了一种铝硼硅酸盐基质玻璃,通过加大单位体积的稀土离子浓度,并选择P值大的顺磁性Tb3+作为弗尔德常数贡献的主要离子,经反复试验研究,制定合理的熔制工艺,得到性能稳定的透明顺磁旋光玻璃。弗尔德常数V=-0.375/Oe·cm。是目前世界上弗尔德常数较高的磁旋光玻璃。 相似文献
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The nuclear shapes of 187,189Tl were investigated theoretically in this work. The total routhian surface (TRS) calculations were performed for N=106 and 108 isotopes of thallium (Z=81). The single-particle energies were obtained from the deformed Woods-Saxon potential, with the Lipkin-Nogami (LN) treatment
of pairing. It is found that the collective oblate rotation coexists with the high-K prolate rotation. Superdeformed prolate rotation is included in this calculation.
Supported by the National Natural Science Foundation of China (Grant Nos. 10575036 and 10675046) and the Natural Science Foundation
of Zhejiang Province of China (Grant Nos. Y605476 and Y604027) 相似文献
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采用激光测量了蔗糖溶液的旋光率及其浓度,利用计算机实时采集数据并输出图形,使实验具有直观、准确度高、操作简便等特点. 相似文献
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S.-X. Wang J. Schroderus I. Ozier N. Moazzen-AhmadiV.-M. Horneman V.V. IlyushynE.A. Alekseev A.A. KatrichS.F. Dyubko 《Journal of Molecular Spectroscopy》2002,214(1):69-79
An investigation of the torsion-rotation-vibration energies in the ν5 vibrational state in CH3CF3 has been carried out using infrared and mm-wave spectroscopy. The lowest frequency parallel fundamental band ν5 near 600 cm−1 has been measured at a resolution of 0.00125 cm−1 with Fourier transform spectroscopy for the two lowest torsional states v6=0 and 1. The cold band (v5=1, v6=0)←(v5=0, v6=0) showed no torsional splittings and looked much like a parallel band in a C3v molecule. The hot band (v5=1, v6=1)←(v5=0, v6=1) consisted of three distinct subbands, one for each torsional sublevel σ=0, +1, and −1. For the state (v5=1, v6=1), the torsional splitting was increased from ∼0.001 cm−1 to ∼0.022 cm−1 by torsion-mediated Fermi-type interaction primarily with the dark state (v5=0, v6=5). The effects of this coupling on the spectrum are striking in spite of the fact that the two interacting states are ∼100 cm−1 apart and differ by four units in v6. The large amplitude character of the state (v5=0, v6=5) is seen to be largely responsible for the unusual (k, σ) dependence of the energies in the state (v5=1, v6=1). The pure rotational spectrum in the state (v5=1, v6=0) has been measured between ∼50 and 370 GHz with Doppler-limited resolution; no σ-splitting was detected. The 3590 infrared and mm-wave frequencies measured here have been analyzed together with the 1494 measurements reported earlier by Wang et al. in an analysis of the vibrational ground state (2001, J. Mol. Spectrosc.205, 146-163). A good fit was obtained here by varying 36 parameters in a Hamiltonian which takes into account the interaction between the torsional stacks of levels for v5=0 and 1, as well as the (A1−A2) splittings measured earlier for v5=0. The explicit treatment of the interstack interactions is shown to lead to significant changes in the parameters (V0,3, V0,6) that characterize the torsional potential for v5=0. These changes have been explained quantitatively by examining the contact transformation that is implicitly applied when the interstack coupling is neglected. 相似文献
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石英晶体右旋光与左旋光折射率差的温度特性 总被引:2,自引:1,他引:1
利用Jones矩阵,从理论上分析了石英晶体的旋光特性。在-10~60℃的温度范围内,实验测试了石英晶体的旋光角随温度的变化关系,并得出了石英晶体右旋圆偏振光与左旋圆偏振光折射率差随温度的变化关系。结果表明,对单色光来说,石英晶体右旋光与左旋光折射率差随温度的升高而增加,也就是说,石英晶体的旋光率随温度变化的这一特性是由晶体的右旋圆偏振光与左旋圆偏振光的折射率差随温度的变化引起的。 相似文献
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味精精制过程中的谷氨酸钠溶液浓度需控制在一定的范围。本文报道一种可用于在线监测谷氨酸钠浓度的双光束激光旋光差动式检测法,并对该方法的可行性进行了初步的实验研究。实测结果表明本方法有较好的实用性。 相似文献