//m.getgobooth.com/ 必威体育下载 daily 15 2024-10-24 17:40:08 apsoffice@iphy.ac.cn apsoffice@iphy.ac.cn 2024-10-24 17:40:08 zh Copyright ©Acta Physica Sinica All Rights Reserved. 京ICP备05002789号-1 Address: PostCode：100190 Phone: 010-82649829，82649241,82649863 Email: apsoffice@iphy.ac.cn Copyright ©Acta Physica Sinica All Rights Reserved apsoffice@iphy.ac.cn 1000-3290 //m.getgobooth.com/en/article/doi/10.7498/aps.19.341 Author(s): HOU BAI-YU <br/><p>Spinor wave functions are expressed in terms of variables in the coordinate system carried with the particle. The properties of various simple systems are discussed with the help of wave functions or scattering functions expressed in this form. The differential operators are expressed in terms of the infinitesimal rotation operators in the coordinate system carried with the particle. A simple way of separating the variables of various spinor wave equations is given.</p> <br/>Acta Physica Sinica. 1963 19(6): 341-359. Published 1963-03-05 Author(s): HOU BAI-YU <br/><p>Spinor wave functions are expressed in terms of variables in the coordinate system carried with the particle. The properties of various simple systems are discussed with the help of wave functions or scattering functions expressed in this form. The differential operators are expressed in terms of the infinitesimal rotation operators in the coordinate system carried with the particle. A simple way of separating the variables of various spinor wave equations is given.</p> <br/>Acta Physica Sinica. 1963 19(6): 341-359. Published 1963-03-05 THE SPINOR WAVE FUNCTIONS AND OPERATORS IN THE LOCAL COORDINATE SYSTEM HOU BAI-YU 1963-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(6): 341-359. article doi:10.7498/aps.19.341 10.7498/aps.19.341 Acta Physica Sinica 19 6 1963-03-05 //m.getgobooth.com/en/article/doi/10.7498/aps.19.341 341-359 //m.getgobooth.com/en/article/doi/10.7498/aps.19.360 Author(s): TSENG, C. Y., SHAN, Q. Z., CHENG, L. S. <br/><p>We have analyzed the effects of the pairing force on the nuclear structure of light nuclei: F19-g24. It is found that with the coupling strength G, Gx A~16-18 Mev, the observed moments of inertia of these nuclei can be predicated very well. The estimated even-odd mass difference P in general is a little larger than the energy gap in light nuclei. The fluctuation of the number of particles △N~1-1.5. The neglected higher-order terms in Bogolyubov-Belyaev's theory are also discussed. The main difficulties of the theory are the nonconservation of the number of particles, the treatment of excited states and the up pairing force.</p> <br/>Acta Physica Sinica. 1963 19(6): 360-369. Published 1963-03-05 Author(s): TSENG, C. Y., SHAN, Q. Z., CHENG, L. S. <br/><p>We have analyzed the effects of the pairing force on the nuclear structure of light nuclei: F19-g24. It is found that with the coupling strength G, Gx A~16-18 Mev, the observed moments of inertia of these nuclei can be predicated very well. The estimated even-odd mass difference P in general is a little larger than the energy gap in light nuclei. The fluctuation of the number of particles △N~1-1.5. The neglected higher-order terms in Bogolyubov-Belyaev's theory are also discussed. The main difficulties of the theory are the nonconservation of the number of particles, the treatment of excited states and the up pairing force.</p> <br/>Acta Physica Sinica. 1963 19(6): 360-369. Published 1963-03-05 THE SUPERFLUIDITY EFFECTS IN LIGHT NUCLEI TSENG, C. Y., SHAN, Q. Z., CHENG, L. S. 1963-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(6): 360-369. article doi:10.7498/aps.19.360 10.7498/aps.19.360 Acta Physica Sinica 19 6 1963-03-05 //m.getgobooth.com/en/article/doi/10.7498/aps.19.360 360-369 //m.getgobooth.com/en/article/doi/10.7498/aps.19.370 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(6): 370-383. Published 1963-03-05 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(6): 370-383. Published 1963-03-05 ПОПРАВОЧНЫЕ ФУНКЦИИ ПРИ ИЗМЕРЕНИИ УДЕЛЬнОГО СОПРОТИВЛЕНИЯ ЧЕТЫРЕХЗОНДОВЫМ МЕТОДОМ НА ОБРАЗЦЕ ПОЛУПРОВОДНИКА В ФОРМЕ ПРЯМОУГОЛЬНИКА 1963-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(6): 370-383. article doi:10.7498/aps.19.370 10.7498/aps.19.370 Acta Physica Sinica 19 6 1963-03-05 //m.getgobooth.com/en/article/doi/10.7498/aps.19.370 370-383 //m.getgobooth.com/en/article/doi/10.7498/aps.19.384 Author(s): SHEN GUANG-MING, GAO TIAN-MING, MAO JING-HUAI <br/><p>The results presented in this paper may be classified into three categories. First, there is derived the characteristics of gain, bandwidth, and figure of merit of a non-degenerative parametric amplifier of both fundamental and sub-harmonic pumping; and the comparison between them is carried out in substantial detail. Second, there is devised an analytical method for determining the harmonic contents of the capacitance of a nonlinear semiconductor diode, which is negatively biased and is under the action of a strong high frequency pumping voltage. The magnitudes of bias and pumping voltage are thus found quantitatively. Also, the stability requirements for pumping amplitude and pumping frequency are discussed. Third, the noise figure of a parametric amplifier itself and the effective noise figure of the amplifier loaded with a noisy second stage, which may be a frequency converter, are derived. Factors such as diode loss, match, and the bandwidth ratio of the signal to the idler circuit are all considered in the derivations so as to make the results with greater importance for practical applications. Finally, a numerical example is given to show the utility of the results presented in this paper and to illustrate a possible design procedure of a non-degenerative parametric amplifier.</p> <br/>Acta Physica Sinica. 1963 19(6): 384-397. Published 1963-03-05 Author(s): SHEN GUANG-MING, GAO TIAN-MING, MAO JING-HUAI <br/><p>The results presented in this paper may be classified into three categories. First, there is derived the characteristics of gain, bandwidth, and figure of merit of a non-degenerative parametric amplifier of both fundamental and sub-harmonic pumping; and the comparison between them is carried out in substantial detail. Second, there is devised an analytical method for determining the harmonic contents of the capacitance of a nonlinear semiconductor diode, which is negatively biased and is under the action of a strong high frequency pumping voltage. The magnitudes of bias and pumping voltage are thus found quantitatively. Also, the stability requirements for pumping amplitude and pumping frequency are discussed. Third, the noise figure of a parametric amplifier itself and the effective noise figure of the amplifier loaded with a noisy second stage, which may be a frequency converter, are derived. Factors such as diode loss, match, and the bandwidth ratio of the signal to the idler circuit are all considered in the derivations so as to make the results with greater importance for practical applications. Finally, a numerical example is given to show the utility of the results presented in this paper and to illustrate a possible design procedure of a non-degenerative parametric amplifier.</p> <br/>Acta Physica Sinica. 1963 19(6): 384-397. Published 1963-03-05 AN ANALYSIS OF FUNDAMENTAL AND SUB-HARMONIC PUMPING PARAMETRIC AMPLIFIERS SHEN GUANG-MING, GAO TIAN-MING, MAO JING-HUAI 1963-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(6): 384-397. article doi:10.7498/aps.19.384 10.7498/aps.19.384 Acta Physica Sinica 19 6 1963-03-05 //m.getgobooth.com/en/article/doi/10.7498/aps.19.384 384-397 //m.getgobooth.com/en/article/doi/10.7498/aps.19.398 Author(s): CHEN SHIH, DAI YUANG-BENG <br/><p>The expression of the absorptive part of the nucleon-nucleon scattering amplitude in the "strip approximation" is given. Utilizing the experimental data of low energy π-N scattering, the total cross section of N-N inelastic scattering at 4 BeV. laboratory energy is calculated. For p-p scattering we find σin=25 mb., in agreement with the experimental data. However, the isotopic spin dependence is important in the energy region 3-4 BeV. The result shows that the internal part of the spectral function may be also important.</p> <br/>Acta Physica Sinica. 1963 19(6): 398-403. Published 1963-03-05 Author(s): CHEN SHIH, DAI YUANG-BENG <br/><p>The expression of the absorptive part of the nucleon-nucleon scattering amplitude in the "strip approximation" is given. Utilizing the experimental data of low energy π-N scattering, the total cross section of N-N inelastic scattering at 4 BeV. laboratory energy is calculated. For p-p scattering we find σin=25 mb., in agreement with the experimental data. However, the isotopic spin dependence is important in the energy region 3-4 BeV. The result shows that the internal part of the spectral function may be also important.</p> <br/>Acta Physica Sinica. 1963 19(6): 398-403. Published 1963-03-05 N-N SCATTERING AT 4 BeV. LABORATORY ENERGY CHEN SHIH, DAI YUANG-BENG 1963-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(6): 398-403. article doi:10.7498/aps.19.398 10.7498/aps.19.398 Acta Physica Sinica 19 6 1963-03-05 //m.getgobooth.com/en/article/doi/10.7498/aps.19.398 398-403 //m.getgobooth.com/en/article/doi/10.7498/aps.19.404 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(6): 404-406. Published 1963-03-05 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(6): 404-406. Published 1963-03-05 1963-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(6): 404-406. article doi:10.7498/aps.19.404 10.7498/aps.19.404 Acta Physica Sinica 19 6 1963-03-05 //m.getgobooth.com/en/article/doi/10.7498/aps.19.404 404-406 //m.getgobooth.com/en/article/doi/10.7498/aps.19.407 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(6): 407-408. Published 1963-03-05 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(6): 407-408. Published 1963-03-05 1963-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(6): 407-408. article doi:10.7498/aps.19.407 10.7498/aps.19.407 Acta Physica Sinica 19 6 1963-03-05 //m.getgobooth.com/en/article/doi/10.7498/aps.19.407 407-408