//www.getgobooth.com/ 必威体育下载 daily 15 2024-08-20 10:33:39 apsoffice@iphy.ac.cn apsoffice@iphy.ac.cn 2024-08-20 10:33:39 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.25.91 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 91-96. Published 1976-01-05 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 91-96. Published 1976-01-05 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 91-96. article doi:10.7498/aps.25.91 10.7498/aps.25.91 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.91 91-96 //www.getgobooth.com/en/article/doi/10.7498/aps.25.97 Author(s): LIU DONG, CAO SHU-LAN, SANG YA-NAN, WANG HUI-ZHI, LIU FU-SUI, WAN YU-ZHEN <br/><p>It has been observed experimentally that the height of the microwave induced step in half-wavelength Josephson tunnel junction varies with the microwave voltage approximately as the square of the Bessel function; Also Odd-numeral steps disappear sometimes.A theoritical explanation is given for the above phenomena.</p> <br/>Acta Physica Sinica. 1976 25(2): 97-104. Published 1976-01-05 Author(s): LIU DONG, CAO SHU-LAN, SANG YA-NAN, WANG HUI-ZHI, LIU FU-SUI, WAN YU-ZHEN <br/><p>It has been observed experimentally that the height of the microwave induced step in half-wavelength Josephson tunnel junction varies with the microwave voltage approximately as the square of the Bessel function; Also Odd-numeral steps disappear sometimes.A theoritical explanation is given for the above phenomena.</p> <br/>Acta Physica Sinica. 1976 25(2): 97-104. Published 1976-01-05 EXPERIMENTAL AND THEORETICAL RESEARCH ON THE MICROWAVE INDUCED EFFECT IN JOSEPHSON TUNNEL JUNCTIONS LIU DONG, CAO SHU-LAN, SANG YA-NAN, WANG HUI-ZHI, LIU FU-SUI, WAN YU-ZHEN 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 97-104. article doi:10.7498/aps.25.97 10.7498/aps.25.97 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.97 97-104 //www.getgobooth.com/en/article/doi/10.7498/aps.25.105 Author(s): ERG-1972, RESEARCH GROUP OP THE THIRD WORKSHOP <br/><p>The eddy current loss at low frequencies in thin strips of isoperm under superposed magnetization by alternating and direct currents has been analyzed with a model of coherent rotation in magnetic domains. It is considered that the eddy current loss anomaly is not only caused by the displacement of the domain walls, but also by the rotation of magnetization. As the magnetic permeability is a tensor in the rotation process, it gives rise to a "laterat eddy current" term in addition to that given by the classical theory. Thence an expression has been derived for the anomaly coefficient ηr of the eddy current loss due to rotation. The theory has been extended to certain applied fields, and corresponding conclusions have been obtained.</p> <br/>Acta Physica Sinica. 1976 25(2): 105-114. Published 1976-01-05 Author(s): ERG-1972, RESEARCH GROUP OP THE THIRD WORKSHOP <br/><p>The eddy current loss at low frequencies in thin strips of isoperm under superposed magnetization by alternating and direct currents has been analyzed with a model of coherent rotation in magnetic domains. It is considered that the eddy current loss anomaly is not only caused by the displacement of the domain walls, but also by the rotation of magnetization. As the magnetic permeability is a tensor in the rotation process, it gives rise to a "laterat eddy current" term in addition to that given by the classical theory. Thence an expression has been derived for the anomaly coefficient ηr of the eddy current loss due to rotation. The theory has been extended to certain applied fields, and corresponding conclusions have been obtained.</p> <br/>Acta Physica Sinica. 1976 25(2): 105-114. Published 1976-01-05 ANOMALOUS EDDY CURRENT LOSSES OF ISOPERM THIN STRIPS UNDER SUPERPOSED MAGNETIZATION BY ALTERNATING AND DIRECT CURRENTS ERG-1972, RESEARCH GROUP OP THE THIRD WORKSHOP 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 105-114. article doi:10.7498/aps.25.105 10.7498/aps.25.105 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.105 105-114 //www.getgobooth.com/en/article/doi/10.7498/aps.25.115 Author(s): ERG-1972, RESEARCH GROUP OP THE THIRD WORKSHOP <br/><p>Investigation has been made on the losses in magnetic cores consisting of strips of iron-nickel-cobalt alloy after annealment in a longitudinal magnetic field. It has been found that the p/f-f curve shows obvious anomalous behaviour. Explanation is given for this behaviour with a Theoretical model of the anomalous eddy current loss caused by the wall displacement in the 180?domains. Possible ways of minimizing the loss are suggested.</p> <br/>Acta Physica Sinica. 1976 25(2): 115-121. Published 1976-01-05 Author(s): ERG-1972, RESEARCH GROUP OP THE THIRD WORKSHOP <br/><p>Investigation has been made on the losses in magnetic cores consisting of strips of iron-nickel-cobalt alloy after annealment in a longitudinal magnetic field. It has been found that the p/f-f curve shows obvious anomalous behaviour. Explanation is given for this behaviour with a Theoretical model of the anomalous eddy current loss caused by the wall displacement in the 180?domains. Possible ways of minimizing the loss are suggested.</p> <br/>Acta Physica Sinica. 1976 25(2): 115-121. Published 1976-01-05 LOSSES IN THE MAGNETIC CORES OF IRON-NICKEL-COBALT ALLOY HAVING RECTANGULAR HYSTERESIS LOOP ERG-1972, RESEARCH GROUP OP THE THIRD WORKSHOP 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 115-121. article doi:10.7498/aps.25.115 10.7498/aps.25.115 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.115 115-121 //www.getgobooth.com/en/article/doi/10.7498/aps.25.122 Author(s): SUPERCONDUCTING MATERIALS GROUP <br/><p>The X ray structural analysis and superconducting critical temperature measurements for Nb3Ga ribbon prepared by the diffusion process are reported.</p> <br/>Acta Physica Sinica. 1976 25(2): 122-123. Published 1976-01-05 Author(s): SUPERCONDUCTING MATERIALS GROUP <br/><p>The X ray structural analysis and superconducting critical temperature measurements for Nb3Ga ribbon prepared by the diffusion process are reported.</p> <br/>Acta Physica Sinica. 1976 25(2): 122-123. Published 1976-01-05 OBSERVATION OF THE DIFFUSION LAYER OF Nb&lt;sub&lt;3&lt;/sub&lt;Ga TAPES SUPERCONDUCTING MATERIALS GROUP 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 122-123. article doi:10.7498/aps.25.122 10.7498/aps.25.122 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.122 122-123 //www.getgobooth.com/en/article/doi/10.7498/aps.25.124 Author(s): OPTICAL INFOHMATION PROCESSING GROUP <br/><p>A noncoherent optical method for processing images blurred by large relative motions has been developed. The blurred image is directly differentiated by means of a pair of positive and negative plates, the optical densities of which are strictly "mutually compensated", thus giving the deblurred image. This method can be used to process both translation-blurred and rotation-blurred images; the latter are still difficult to process by coherent methods at present.</p> <br/>Acta Physica Sinica. 1976 25(2): 124-128. Published 1976-01-05 Author(s): OPTICAL INFOHMATION PROCESSING GROUP <br/><p>A noncoherent optical method for processing images blurred by large relative motions has been developed. The blurred image is directly differentiated by means of a pair of positive and negative plates, the optical densities of which are strictly "mutually compensated", thus giving the deblurred image. This method can be used to process both translation-blurred and rotation-blurred images; the latter are still difficult to process by coherent methods at present.</p> <br/>Acta Physica Sinica. 1976 25(2): 124-128. Published 1976-01-05 NONCOHERENT OPTICAL PROCESSING OF IMAGES BLURRED BY LARGE RELATIVE MOTIONS OPTICAL INFOHMATION PROCESSING GROUP 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 124-128. article doi:10.7498/aps.25.124 10.7498/aps.25.124 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.124 124-128 //www.getgobooth.com/en/article/doi/10.7498/aps.25.129 Author(s): α-LITHIUM IODATE EESEARCH GROUP <br/><p>The following investigations have been carried out on the basis of our previous work [1]. The (002) intensities of neutron diffraction from α-LiIO3 single crystals under a DC or AC field along the c-axis were measured in various eases. (1) With a DC field applied at a temperature below 180 K or so, no enhancement is found to appear. When the DC field is applied at room temperature and the sample then cooled down to 180 K or even lower (e. g liquid nitrogen temperature), the magnitude of the diffraction intensity enhancement initially observed at room temperature remains the same, even after removing the applied voltage. (2) When a narrow neutron beam is scanned across a thicker crystal and a DC field applied, the diffraction intensity enhancement is not limited to the region near the electrodes, but also appears in each scanned region. (3) When a low-frequency AC field is applied, the enhancement decreases as the frequency increases for the same Vs.m.s. Above 1500 c/s the effect becomes negligible.</p> <br/>Acta Physica Sinica. 1976 25(2): 129-134. Published 1976-01-05 Author(s): α-LITHIUM IODATE EESEARCH GROUP <br/><p>The following investigations have been carried out on the basis of our previous work [1]. The (002) intensities of neutron diffraction from α-LiIO3 single crystals under a DC or AC field along the c-axis were measured in various eases. (1) With a DC field applied at a temperature below 180 K or so, no enhancement is found to appear. When the DC field is applied at room temperature and the sample then cooled down to 180 K or even lower (e. g liquid nitrogen temperature), the magnitude of the diffraction intensity enhancement initially observed at room temperature remains the same, even after removing the applied voltage. (2) When a narrow neutron beam is scanned across a thicker crystal and a DC field applied, the diffraction intensity enhancement is not limited to the region near the electrodes, but also appears in each scanned region. (3) When a low-frequency AC field is applied, the enhancement decreases as the frequency increases for the same Vs.m.s. Above 1500 c/s the effect becomes negligible.</p> <br/>Acta Physica Sinica. 1976 25(2): 129-134. Published 1976-01-05 ENHANCEMENT OF NEUTRON DIFFRACTION INTENSITIES OF α-LiIO&lt;sub&lt;3&lt;/sub&lt; SINGLE CRYSTALS WITH THE APPLICATION OF A DC FIELD (Ⅱ) α-LITHIUM IODATE EESEARCH GROUP 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 129-134. article doi:10.7498/aps.25.129 10.7498/aps.25.129 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.129 129-134 //www.getgobooth.com/en/article/doi/10.7498/aps.25.135 Author(s): BAO CHENG-GUANG <br/><p>In this paper we give different types of generalized Watson expansions, therefore the total scattering process occurring in a N-body system can be decomposed into local processes (process involving only a few particles).</p> <br/>Acta Physica Sinica. 1976 25(2): 135-145. Published 1976-01-05 Author(s): BAO CHENG-GUANG <br/><p>In this paper we give different types of generalized Watson expansions, therefore the total scattering process occurring in a N-body system can be decomposed into local processes (process involving only a few particles).</p> <br/>Acta Physica Sinica. 1976 25(2): 135-145. Published 1976-01-05 N-BODY SCATTERING——(Ⅲ) LOCAL PROCESS AND GENERALIZED WATSON EXPANSION BAO CHENG-GUANG 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 135-145. article doi:10.7498/aps.25.135 10.7498/aps.25.135 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.135 135-145 //www.getgobooth.com/en/article/doi/10.7498/aps.25.146 Author(s): CHEN CHUANG-TIAN <br/><p>In order to elucidate the relationship between the structure and the electro-optical and nonlinear optical effects in crystals of the perovskite type, we have here proposed a deformed oxygen-octahedra model for these crystals. On the basis of quasi-molecular orbitals and ionic bond orbitals for the ionic grouping TiO6 formulated under the imposed crystal field, we have calculated the various electro-optical and second optical harmonic coefficients for the BaTiO3 crystal without introducing any adjustable parameters. It is gratifying to note that the calculated values of the electro-optical and second optical harmonic coefficients agree satisfactorily with the experimental values. As is to be expected, the quasi-molecular orbitals contribute very little to these optical effects. We have been led to the following conclusions:1) The electro-optical and second optical harmonic effects of the BaTiO3 crystal arise as a direct consequence of the deformation of the TiO6 oxygen-octahedra. The more these octahedra are deformed, the larger are these optical effects.2) When BaTiO3 is present as the ferroelectric phase, a strong odd ordered-term crystal field arises as a result of the spontaneous polarization within the crystal. This explains why BaTiO3 possesses such large electro-optical and second harmonic optical effects. The covalent bonds in the ionic group TiO6 tend to cancel each other in their contribution to these effects.3) The electro-optical and second harmonic optical coefficients are directly proportional to the degree of spontaneous polarization.</p> <br/>Acta Physica Sinica. 1976 25(2): 146-161. Published 1976-01-05 Author(s): CHEN CHUANG-TIAN <br/><p>In order to elucidate the relationship between the structure and the electro-optical and nonlinear optical effects in crystals of the perovskite type, we have here proposed a deformed oxygen-octahedra model for these crystals. On the basis of quasi-molecular orbitals and ionic bond orbitals for the ionic grouping TiO6 formulated under the imposed crystal field, we have calculated the various electro-optical and second optical harmonic coefficients for the BaTiO3 crystal without introducing any adjustable parameters. It is gratifying to note that the calculated values of the electro-optical and second optical harmonic coefficients agree satisfactorily with the experimental values. As is to be expected, the quasi-molecular orbitals contribute very little to these optical effects. We have been led to the following conclusions:1) The electro-optical and second optical harmonic effects of the BaTiO3 crystal arise as a direct consequence of the deformation of the TiO6 oxygen-octahedra. The more these octahedra are deformed, the larger are these optical effects.2) When BaTiO3 is present as the ferroelectric phase, a strong odd ordered-term crystal field arises as a result of the spontaneous polarization within the crystal. This explains why BaTiO3 possesses such large electro-optical and second harmonic optical effects. The covalent bonds in the ionic group TiO6 tend to cancel each other in their contribution to these effects.3) The electro-optical and second harmonic optical coefficients are directly proportional to the degree of spontaneous polarization.</p> <br/>Acta Physica Sinica. 1976 25(2): 146-161. Published 1976-01-05 AN IONIC GROUPING THEORY OF THE ELECTRO-OPTICAL AND NON-LINEAR OPTICAL EFFECTS OF CRYSTALS (Ⅰ)——A THEORETICAL CALCULATION OF ELECTRO-OPTICAL AND SECOND OPTICAL HARMONIC COEFFICIENTS OF BARIUM TITANATE CRYSTALS BASED ON A DEFORMED OXYGEN-OCTAHEDRA CHEN CHUANG-TIAN 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 146-161. article doi:10.7498/aps.25.146 10.7498/aps.25.146 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.146 146-161 //www.getgobooth.com/en/article/doi/10.7498/aps.25.162 Author(s): ZHANG JIN-BIAO <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 162-167. Published 1976-01-05 Author(s): ZHANG JIN-BIAO <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 162-167. Published 1976-01-05 ON THE SCATTERING OF PLANE WAVES BY A METAL GRATING IN A STRATIFIED MEDIA ZHANG JIN-BIAO 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 162-167. article doi:10.7498/aps.25.162 10.7498/aps.25.162 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.162 162-167 //www.getgobooth.com/en/article/doi/10.7498/aps.25.168 Author(s): LUO LIAO-FU, LU TAN <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 168-171. Published 1976-01-05 Author(s): LUO LIAO-FU, LU TAN <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 168-171. Published 1976-01-05 THE INNER SYMMETRIES OF HADRONS AND THE SUPERNARROW RESONANCES LUO LIAO-FU, LU TAN 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 168-171. article doi:10.7498/aps.25.168 10.7498/aps.25.168 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.168 168-171 //www.getgobooth.com/en/article/doi/10.7498/aps.25.172 Author(s): ZHANG ZONG-YE, LI GUANG-LIE <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 172-174. Published 1976-01-05 Author(s): ZHANG ZONG-YE, LI GUANG-LIE <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 172-174. Published 1976-01-05 THE SYMMETRY CLASSIFICATION FOR THE EXCITED STATES OF HYPERNUCLEI ZHANG ZONG-YE, LI GUANG-LIE 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 172-174. article doi:10.7498/aps.25.172 10.7498/aps.25.172 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.172 172-174 //www.getgobooth.com/en/article/doi/10.7498/aps.25.175 Author(s): WANG CHAO-JUN, HE JING-TANG, ZHENG ZHI-PANG, TANG XIAO-WEI <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 175-177. Published 1976-01-05 Author(s): WANG CHAO-JUN, HE JING-TANG, ZHENG ZHI-PANG, TANG XIAO-WEI <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 175-177. Published 1976-01-05 A LOW-PRESSURE PROPORTIONAL COUNTER WANG CHAO-JUN, HE JING-TANG, ZHENG ZHI-PANG, TANG XIAO-WEI 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 175-177. article doi:10.7498/aps.25.175 10.7498/aps.25.175 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.175 175-177 //www.getgobooth.com/en/article/doi/10.7498/aps.25.178 Author(s): THE Mn-Zn FERRITE SINGLE CRYSTAL GROUP <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 178-178. Published 1976-01-05 Author(s): THE Mn-Zn FERRITE SINGLE CRYSTAL GROUP <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 178-178. Published 1976-01-05 A HIGH TEMPERATURE FURNACE FOR GROWING SINGLE CRYSTALS IN AN ATMOSPHERE OF OXYGEN THE Mn-Zn FERRITE SINGLE CRYSTAL GROUP 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 178-178. article doi:10.7498/aps.25.178 10.7498/aps.25.178 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.178 178-178 //www.getgobooth.com/en/article/doi/10.7498/aps.25.179 Author(s): GAAS SINGLE CRYSTAL RESEARCH GROUP <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 179-180. Published 1976-01-05 Author(s): GAAS SINGLE CRYSTAL RESEARCH GROUP <br/><p></p> <br/>Acta Physica Sinica. 1976 25(2): 179-180. Published 1976-01-05 TE-DOPED GaAs CRYSTALS OF LOW DISLOCATION DENSITY GROWN BY THE HORIZONTAL BRIDGMAN METHOD GAAS SINGLE CRYSTAL RESEARCH GROUP 1976-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(2): 179-180. article doi:10.7498/aps.25.179 10.7498/aps.25.179 Acta Physica Sinica 25 2 1976-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.179 179-180

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