//www.getgobooth.com/ 必威体育下载 daily 15 2024-08-20 10:33:40 apsoffice@iphy.ac.cn apsoffice@iphy.ac.cn 2024-08-20 10:33:40 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 //www.getgobooth.com/en/article/doi/10.7498/aps.18.609 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1962 18(12): 609-620. Published 1962-06-05 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1962 18(12): 609-620. Published 1962-06-05 МОДЕЛЬ ХИМИЧЕСКИХ СВЯЗЕЙ ДЛЯ ВАНЛЕНТНЫХ ПОЛУПРОВОДНИКОВ 1962-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1962 18(12): 609-620. article doi:10.7498/aps.18.609 10.7498/aps.18.609 Acta Physica Sinica 18 12 1962-06-05 //www.getgobooth.com/en/article/doi/10.7498/aps.18.609 609-620 //www.getgobooth.com/en/article/doi/10.7498/aps.18.621 Author(s): PENG HONG-AN <br/><p>Starting from the dispersion relation we have discussed low energies π-N scattering amplitude with isospin positive part. It is shown that for P1/2+ -wave, the results evaluating from CGLN formula are essentially in agreement with experiments. But for S-wave, when comparing with experiments, even the sign of CGLN results is wrong. Further they are increasing as energy very rapidly that exceeds the limit allowed by the unitary condition. From analysis it is shown that one cannot solve this problem and at the same time keep the agreeing of the calculated P1/2+-wave results with the experiments by introducting a π-π S-wave interaction. But alternatively if we attacked from the π-N S-partial wave dispersion relation with one subtraction, then the results agree with the experiments fairly well. So it is likely that the π-π S-wave interaction plays an unimportant role in it.</p> <br/>Acta Physica Sinica. 1962 18(12): 621-628. Published 1962-06-05 Author(s): PENG HONG-AN <br/><p>Starting from the dispersion relation we have discussed low energies π-N scattering amplitude with isospin positive part. It is shown that for P1/2+ -wave, the results evaluating from CGLN formula are essentially in agreement with experiments. But for S-wave, when comparing with experiments, even the sign of CGLN results is wrong. Further they are increasing as energy very rapidly that exceeds the limit allowed by the unitary condition. From analysis it is shown that one cannot solve this problem and at the same time keep the agreeing of the calculated P1/2+-wave results with the experiments by introducting a π-π S-wave interaction. But alternatively if we attacked from the π-N S-partial wave dispersion relation with one subtraction, then the results agree with the experiments fairly well. So it is likely that the π-π S-wave interaction plays an unimportant role in it.</p> <br/>Acta Physica Sinica. 1962 18(12): 621-628. Published 1962-06-05 LOW ENERGY PION-NUCLEON SCATTERING AND PION-PION INTERACTION PENG HONG-AN 1962-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1962 18(12): 621-628. article doi:10.7498/aps.18.621 10.7498/aps.18.621 Acta Physica Sinica 18 12 1962-06-05 //www.getgobooth.com/en/article/doi/10.7498/aps.18.621 621-628 //www.getgobooth.com/en/article/doi/10.7498/aps.18.629 Author(s): KU FU-NIEN <br/><p>In this paper we studied the Maxwell's equations in imhomogeneous and anisotropic media as an operator. It is defined in a bounded region, which can be comprehended as a resonant cavity in micro-wave technique. But these cavities are filled with ferrite, plasma or other gyrotropic medium, all these new media become more and more important in practice. We proved that under some concrete conditions imposed on μ, ε and restrictions on the boundary value, the operator of Maxwell's equations becomes a symmetric one. The symmetry and self-adjoint property give much convenience in eigenfunction expansion problems. Besides, we derived the orthogonality of characteristic oscillation and reciprocity theorem in general.If it does not satisfy the conditions of symmetry, we introduced the concept of adjoint-cavity. The so-called adjoint cavity coincides with the primary cavity in geometrical shape, but both μ, ε and boundry conditions do not coincide. It has some properties similiar with self-adjoint cavity in orthogonality and reciprocity theorem.</p> <br/>Acta Physica Sinica. 1962 18(12): 629-635. Published 1962-06-05 Author(s): KU FU-NIEN <br/><p>In this paper we studied the Maxwell's equations in imhomogeneous and anisotropic media as an operator. It is defined in a bounded region, which can be comprehended as a resonant cavity in micro-wave technique. But these cavities are filled with ferrite, plasma or other gyrotropic medium, all these new media become more and more important in practice. We proved that under some concrete conditions imposed on μ, ε and restrictions on the boundary value, the operator of Maxwell's equations becomes a symmetric one. The symmetry and self-adjoint property give much convenience in eigenfunction expansion problems. Besides, we derived the orthogonality of characteristic oscillation and reciprocity theorem in general.If it does not satisfy the conditions of symmetry, we introduced the concept of adjoint-cavity. The so-called adjoint cavity coincides with the primary cavity in geometrical shape, but both μ, ε and boundry conditions do not coincide. It has some properties similiar with self-adjoint cavity in orthogonality and reciprocity theorem.</p> <br/>Acta Physica Sinica. 1962 18(12): 629-635. Published 1962-06-05 SOME PROPERTIES OF OPERATOR IN ELECTROMAGNETIC THEORY KU FU-NIEN 1962-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1962 18(12): 629-635. article doi:10.7498/aps.18.629 10.7498/aps.18.629 Acta Physica Sinica 18 12 1962-06-05 //www.getgobooth.com/en/article/doi/10.7498/aps.18.629 629-635 //www.getgobooth.com/en/article/doi/10.7498/aps.18.636 Author(s): KU FU-NIEN <br/><p>In this paper, we suggest one method of finding the Green tensor functions in whole space, which are defined in formula (3). Some times it is also called the elementary solution of the corresponding differential equation. All this method is based on Fourier transform. Owing to complexity, we are obliged to make some simplifications. Magneto-gyrotropic media and electric-gyrotropic media are considered separately. For magneto-gyrotropic medium, such as ferrite, μ, is a tensor while ε remains scalar. Conversely, for electric-gyrotropic medium, such as plasma, ε is tensor and μ remains scalar. Taking advantage of the smallness of matrix μp (defined in (15)) we make an expansion in power series of μp, and carry out the calculations in first order approximation. The concrete results are expressed in formulae (23)、(25)、(28)、(32) and (33). The physical meaning of Γ and the effective region of the asymptotic expansions are discussed.</p> <br/>Acta Physica Sinica. 1962 18(12): 636-645. Published 1962-06-05 Author(s): KU FU-NIEN <br/><p>In this paper, we suggest one method of finding the Green tensor functions in whole space, which are defined in formula (3). Some times it is also called the elementary solution of the corresponding differential equation. All this method is based on Fourier transform. Owing to complexity, we are obliged to make some simplifications. Magneto-gyrotropic media and electric-gyrotropic media are considered separately. For magneto-gyrotropic medium, such as ferrite, μ, is a tensor while ε remains scalar. Conversely, for electric-gyrotropic medium, such as plasma, ε is tensor and μ remains scalar. Taking advantage of the smallness of matrix μp (defined in (15)) we make an expansion in power series of μp, and carry out the calculations in first order approximation. The concrete results are expressed in formulae (23)、(25)、(28)、(32) and (33). The physical meaning of Γ and the effective region of the asymptotic expansions are discussed.</p> <br/>Acta Physica Sinica. 1962 18(12): 636-645. Published 1962-06-05 ABOUT ONE METHOD OF FINDING THE GREEN TENSOR FUNCTIONS OF ELECTROMAGNETIC FIELD IN ANISOTROPIC MEDIA KU FU-NIEN 1962-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1962 18(12): 636-645. article doi:10.7498/aps.18.636 10.7498/aps.18.636 Acta Physica Sinica 18 12 1962-06-05 //www.getgobooth.com/en/article/doi/10.7498/aps.18.636 636-645 //www.getgobooth.com/en/article/doi/10.7498/aps.18.646 Author(s): HSIA CHENG-CHUAN <br/><p>In a ferroresonant circuit containing incandescent lamps of suitable capacity, flickering phenomenon was observed. In the present paper, the explanation about this flickering phenomenon is given, the condition under which this flicker takes place is pointed out, and the method of computing the flicker period is given. The experiment data agree with he theoretical results approximately.</p> <br/>Acta Physica Sinica. 1962 18(12): 646-656. Published 1962-06-05 Author(s): HSIA CHENG-CHUAN <br/><p>In a ferroresonant circuit containing incandescent lamps of suitable capacity, flickering phenomenon was observed. In the present paper, the explanation about this flickering phenomenon is given, the condition under which this flicker takes place is pointed out, and the method of computing the flicker period is given. The experiment data agree with he theoretical results approximately.</p> <br/>Acta Physica Sinica. 1962 18(12): 646-656. Published 1962-06-05 ON THE FLICKERING PHENOMENON IN THE FERRORESONANT CIRCUIT HSIA CHENG-CHUAN 1962-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1962 18(12): 646-656. article doi:10.7498/aps.18.646 10.7498/aps.18.646 Acta Physica Sinica 18 12 1962-06-05 //www.getgobooth.com/en/article/doi/10.7498/aps.18.646 646-656 //www.getgobooth.com/en/article/doi/10.7498/aps.18.657 Author(s): HSIN SHIEN-CHIEH, TSAO CHAI-LIN, WU TSAI-DE <br/><p>In this paper the principle of simulating an axial and plane symmetrical magnetic field by a resistance network analogue is analysed. The method of current injection has also been discussed and the formula for the second order approximation was given. Based on the above principle, a resistance network analogue with associated apparatus was constructed. The central part of the network contains 10×14 units. It is extended by end strips to 28 and 32 units in z and r directions respectively. Experiments have been done with this network for several types of field, which have precise solutions analytically. Errors of the network under various conditions were noted and its origin traced. Experience shows that the analogue is reliable. It shortens considerably the time required for the design of many complex magnetic configurations.</p> <br/>Acta Physica Sinica. 1962 18(12): 657-669. Published 1962-06-05 Author(s): HSIN SHIEN-CHIEH, TSAO CHAI-LIN, WU TSAI-DE <br/><p>In this paper the principle of simulating an axial and plane symmetrical magnetic field by a resistance network analogue is analysed. The method of current injection has also been discussed and the formula for the second order approximation was given. Based on the above principle, a resistance network analogue with associated apparatus was constructed. The central part of the network contains 10×14 units. It is extended by end strips to 28 and 32 units in z and r directions respectively. Experiments have been done with this network for several types of field, which have precise solutions analytically. Errors of the network under various conditions were noted and its origin traced. Experience shows that the analogue is reliable. It shortens considerably the time required for the design of many complex magnetic configurations.</p> <br/>Acta Physica Sinica. 1962 18(12): 657-669. Published 1962-06-05 A RESISTANCE NETWORK ANALOGUE FOR MAGNETIC FIELD WITH BOTH AXIAL AND PLANE SYMMETRY HSIN SHIEN-CHIEH, TSAO CHAI-LIN, WU TSAI-DE 1962-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1962 18(12): 657-669. article doi:10.7498/aps.18.657 10.7498/aps.18.657 Acta Physica Sinica 18 12 1962-06-05 //www.getgobooth.com/en/article/doi/10.7498/aps.18.657 657-669 //www.getgobooth.com/en/article/doi/10.7498/aps.18.670 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1962 18(12): 670-682. Published 1962-06-05 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1962 18(12): 670-682. Published 1962-06-05 НЕИЗОХРОННОЕ ЯВЛЕНИЕ В ИЗОХРОННОМ ЦИКЛОТРОНЕ 1962-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1962 18(12): 670-682. article doi:10.7498/aps.18.670 10.7498/aps.18.670 Acta Physica Sinica 18 12 1962-06-05 //www.getgobooth.com/en/article/doi/10.7498/aps.18.670 670-682

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