//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.27.237 Author(s): CHEN JIN-CHUAN, GAO MEI-JUAN, WANG FAN <br/><p>The expansion coefficients of the SU(3)?SO(3) and SU(4)?SU(2)×SU(2) wave functions in the Gelfand bases are given for particle number f = 1-6 and f = 1-4 respectively.</p> <br/>Acta Physica Sinica. 1978 27(3): 237-246. Published 2005-08-01 Author(s): CHEN JIN-CHUAN, GAO MEI-JUAN, WANG FAN <br/><p>The expansion coefficients of the SU(3)?SO(3) and SU(4)?SU(2)×SU(2) wave functions in the Gelfand bases are given for particle number f = 1-6 and f = 1-4 respectively.</p> <br/>Acta Physica Sinica. 1978 27(3): 237-246. Published 2005-08-01 PHYSICAL METHOD OF GROUP REPRESENTATION THEORY (V)——THE IRREDUCIBLE BASES OF SU(3)?SO(3) AND SU(4)?SU(2)×SU(2) CHEN JIN-CHUAN, GAO MEI-JUAN, WANG FAN 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 237-246. article doi:10.7498/aps.27.237 10.7498/aps.27.237 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.237 237-246 //www.getgobooth.com/en/article/doi/10.7498/aps.27.247 Author(s): XIMEN JI-YE <br/><p>In this paper, a combined system consists of electrostatic round lens and magnetic deflector with additional superimposed fields is studied. The general power-series expression for magnetic deflection fields, the electron trajectories described in vector form and the Gaussian optical characters of the system are obtained and discussed. Formulae for calculating the third order aberration in such a combined system are given in a compact matrix form, they are appropriate for numerical computational purpose. This paper and the previous work [1] are all concerned with the general theory of a combined electrostatic-magnetic system of electron optics, hence they may be useful for designers of cathode ray tubes and electron optical instruments.</p> <br/>Acta Physica Sinica. 1978 27(3): 247-259. Published 2005-08-01 Author(s): XIMEN JI-YE <br/><p>In this paper, a combined system consists of electrostatic round lens and magnetic deflector with additional superimposed fields is studied. The general power-series expression for magnetic deflection fields, the electron trajectories described in vector form and the Gaussian optical characters of the system are obtained and discussed. Formulae for calculating the third order aberration in such a combined system are given in a compact matrix form, they are appropriate for numerical computational purpose. This paper and the previous work [1] are all concerned with the general theory of a combined electrostatic-magnetic system of electron optics, hence they may be useful for designers of cathode ray tubes and electron optical instruments.</p> <br/>Acta Physica Sinica. 1978 27(3): 247-259. Published 2005-08-01 THE ELECTRON-OPTICAL CHARACTERS AND ABBERATION THEORY OF A COMBINED SYSTEM CONSISTS OF ELECTROSTATIC ROUND LENS AND MAGNETIC DEFLECTOR XIMEN JI-YE 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 247-259. article doi:10.7498/aps.27.247 10.7498/aps.27.247 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.247 247-259 //www.getgobooth.com/en/article/doi/10.7498/aps.27.260 Author(s): DAI LI-ZHI, WANG JUN-JIAN, HOU DE-HUI <br/><p>The magnetic properties of two kinds of alloys (Ni-Pe-Nb and Ni-Pe-Nb-Al) after various heat-treatments are studied. The initial and maximum permeabilities are high and can be compared with those of the technical Mo-permalloys. Some of the physical parameters of Ni-Pe-Nb and 4Mo-permalloy are tabulated here for comparison.The quaternary Ni-Pe-Nb-Al alloy possesses higher Vickers hardness and electrical resistivity. Curves of a. c. magnetic permeabilities of the Ni-Pe-Nb-Al alloy specimens are presented.In the specimens of Ni-Pe-Nb-Al after slow cooling from high temperature, modulated structures are developed with a wave-length of about 160?. Eapid cooling from 970℃ suppresses the formation of the modulated structure. The material with a modulated structure possesses higher hardness as well as higher coercive force.</p> <br/>Acta Physica Sinica. 1978 27(3): 260-268. Published 2005-08-01 Author(s): DAI LI-ZHI, WANG JUN-JIAN, HOU DE-HUI <br/><p>The magnetic properties of two kinds of alloys (Ni-Pe-Nb and Ni-Pe-Nb-Al) after various heat-treatments are studied. The initial and maximum permeabilities are high and can be compared with those of the technical Mo-permalloys. Some of the physical parameters of Ni-Pe-Nb and 4Mo-permalloy are tabulated here for comparison.The quaternary Ni-Pe-Nb-Al alloy possesses higher Vickers hardness and electrical resistivity. Curves of a. c. magnetic permeabilities of the Ni-Pe-Nb-Al alloy specimens are presented.In the specimens of Ni-Pe-Nb-Al after slow cooling from high temperature, modulated structures are developed with a wave-length of about 160?. Eapid cooling from 970℃ suppresses the formation of the modulated structure. The material with a modulated structure possesses higher hardness as well as higher coercive force.</p> <br/>Acta Physica Sinica. 1978 27(3): 260-268. Published 2005-08-01 A PRELIMINARY STUDY OF THE MAGNETIC PROPERTIES AND STRUCTURES OF Ni-Fe-Nb AND Ni-Fe-Nb-Al ALLOYS DAI LI-ZHI, WANG JUN-JIAN, HOU DE-HUI 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 260-268. article doi:10.7498/aps.27.260 10.7498/aps.27.260 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.260 260-268 //www.getgobooth.com/en/article/doi/10.7498/aps.27.269 Author(s): FAN TIAN-YOU, LIANG ZHEN-YA <br/><p>After a careful study of the article by Hull and Rimmer, we found that there existed some contradictions between the facts and theory put forward. Basing on the experimental data from related references and those obtained in our own laboratory, and retaining the rational basis of the above mentioned work, we suggest a new mechanism of creep rupture and derive a formula for the rupture time. The theoretical values agree fairly well with those measured. From these results, it seems that our treatment has improved some what the theory of Hull and Rimmer.</p> <br/>Acta Physica Sinica. 1978 27(3): 269-275. Published 2005-08-01 Author(s): FAN TIAN-YOU, LIANG ZHEN-YA <br/><p>After a careful study of the article by Hull and Rimmer, we found that there existed some contradictions between the facts and theory put forward. Basing on the experimental data from related references and those obtained in our own laboratory, and retaining the rational basis of the above mentioned work, we suggest a new mechanism of creep rupture and derive a formula for the rupture time. The theoretical values agree fairly well with those measured. From these results, it seems that our treatment has improved some what the theory of Hull and Rimmer.</p> <br/>Acta Physica Sinica. 1978 27(3): 269-275. Published 2005-08-01 A POSSIBLE MECHANISM OF THE GROWTH OF GRAIN-BOUNDARY CRACK AND AN ESTIMATION OF CREEP RUPTURE TIME FAN TIAN-YOU, LIANG ZHEN-YA 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 269-275. article doi:10.7498/aps.27.269 10.7498/aps.27.269 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.269 269-275 //www.getgobooth.com/en/article/doi/10.7498/aps.27.276 Author(s): LIN TIEN-HUI, TIAN YOU-CAI, CUI BAO-KUN <br/><p>This paper deals with the properties of films used as entrance window of a gas-flow type ultrasoft X-ray counter. The effects of the base material and conductive coatings of the films on performance characteristics of the counter are investigated. Experimental results show that, among the material under study, Formvar exhibits more satisfactory gas-sealing property and has higher transmissivity for X-rays. In addition, it is found that the conductive coating on the film has a significant effect on the stability of the measured intensity. An interpretation on these effects by taking into acounts of the feature of electron multiplication process in the counter caused by ultra-soft X-rays is proposed.</p> <br/>Acta Physica Sinica. 1978 27(3): 276-283. Published 2005-08-01 Author(s): LIN TIEN-HUI, TIAN YOU-CAI, CUI BAO-KUN <br/><p>This paper deals with the properties of films used as entrance window of a gas-flow type ultrasoft X-ray counter. The effects of the base material and conductive coatings of the films on performance characteristics of the counter are investigated. Experimental results show that, among the material under study, Formvar exhibits more satisfactory gas-sealing property and has higher transmissivity for X-rays. In addition, it is found that the conductive coating on the film has a significant effect on the stability of the measured intensity. An interpretation on these effects by taking into acounts of the feature of electron multiplication process in the counter caused by ultra-soft X-rays is proposed.</p> <br/>Acta Physica Sinica. 1978 27(3): 276-283. Published 2005-08-01 AN INVESTIGATION ON THE FILMS USED AS THE WINDOWS OF ULTRA-SOFT X-RAY COUNTERS LIN TIEN-HUI, TIAN YOU-CAI, CUI BAO-KUN 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 276-283. article doi:10.7498/aps.27.276 10.7498/aps.27.276 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.276 276-283 //www.getgobooth.com/en/article/doi/10.7498/aps.27.284 Author(s): LIU HUANG-FENG, WANG LIAN-ZHI <br/><p>In this paper, the possibility of realization of a dye laser with double pumping source is discussed. The introduction of an auxilary T1 → S1 pumping is shown to be beneficial in lowering the laser threshold, increasing the gain and flourescence quantum yield, and further extending the types of laser dyes and the frequency tunning range.</p> <br/>Acta Physica Sinica. 1978 27(3): 284-290. Published 2005-08-01 Author(s): LIU HUANG-FENG, WANG LIAN-ZHI <br/><p>In this paper, the possibility of realization of a dye laser with double pumping source is discussed. The introduction of an auxilary T1 → S1 pumping is shown to be beneficial in lowering the laser threshold, increasing the gain and flourescence quantum yield, and further extending the types of laser dyes and the frequency tunning range.</p> <br/>Acta Physica Sinica. 1978 27(3): 284-290. Published 2005-08-01 A DYE LASER WITH DOUBLE PUMPING SOURCE LIU HUANG-FENG, WANG LIAN-ZHI 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 284-290. article doi:10.7498/aps.27.284 10.7498/aps.27.284 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.284 284-290 //www.getgobooth.com/en/article/doi/10.7498/aps.27.291 Author(s): LIN HONG-YI <br/><p>In this paper, the impurity profile of the 4 mm band silicon avalanche diode is studied by means of the characteristics of the Schottky barrier. The characteristics of the impurity profile of the epitaxial layers, the impurity profile of the device and its effects on device performance are measured and discussed.</p> <br/>Acta Physica Sinica. 1978 27(3): 291-302. Published 2005-08-01 Author(s): LIN HONG-YI <br/><p>In this paper, the impurity profile of the 4 mm band silicon avalanche diode is studied by means of the characteristics of the Schottky barrier. The characteristics of the impurity profile of the epitaxial layers, the impurity profile of the device and its effects on device performance are measured and discussed.</p> <br/>Acta Physica Sinica. 1978 27(3): 291-302. Published 2005-08-01 AN INVESTIGATION OF THE IMPURITY PROFILE OF THE 4mm BAND SILICON AVALANCHE DIODE BY MEANS OF THE SCHOTTKY BARRIER CHARACTERISTICS LIN HONG-YI 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 291-302. article doi:10.7498/aps.27.291 10.7498/aps.27.291 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.291 291-302 //www.getgobooth.com/en/article/doi/10.7498/aps.27.303 Author(s): HU KAI-SHENG, FU DE-HUI, WANG YONG-ZHEN <br/><p>In this paper, we report the design and performance of a rotational type lumious intensity distribution measuring device and an integration sphere. They can be used to measure the angular distribution of luminons intensity and total light flux of LED's. Geometry of the experimental arrangement is described in detail. Measure-ments have been carried out on red emitting GaAsxPx-1, yellow and green emitting GaP and up-conversion GaAs diodes.</p> <br/>Acta Physica Sinica. 1978 27(3): 303-313. Published 2005-08-01 Author(s): HU KAI-SHENG, FU DE-HUI, WANG YONG-ZHEN <br/><p>In this paper, we report the design and performance of a rotational type lumious intensity distribution measuring device and an integration sphere. They can be used to measure the angular distribution of luminons intensity and total light flux of LED's. Geometry of the experimental arrangement is described in detail. Measure-ments have been carried out on red emitting GaAsxPx-1, yellow and green emitting GaP and up-conversion GaAs diodes.</p> <br/>Acta Physica Sinica. 1978 27(3): 303-313. Published 2005-08-01 MEASUREMENTS OF ANGULAR DISTRIBUTION OF LUMINOUS INTENSITY AND TOTAL LIGHT FLUX OF LIGHT EMITTING DIODES HU KAI-SHENG, FU DE-HUI, WANG YONG-ZHEN 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 303-313. article doi:10.7498/aps.27.303 10.7498/aps.27.303 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.303 303-313 //www.getgobooth.com/en/article/doi/10.7498/aps.27.314 Author(s): YI SUN-SHENG, LIANG JING-KUI <br/><p>The irregular variation of lattice constants of the α-LiIO3 single crystal originated in the growth process and the fluctuation phenomena of lattice constants under the action of an electrostatic field were investigated by an X-ray double-crystal spectro-meter in the (n, -n) arrangement.The results obtained support the view point that the enhancement of neutron diffraction intensity of the l≠0 reflection under the action of an electrostatic field along z-axis is due to the existence of a gradient of lattice constant c.</p> <br/>Acta Physica Sinica. 1978 27(3): 314-321. Published 2005-08-01 Author(s): YI SUN-SHENG, LIANG JING-KUI <br/><p>The irregular variation of lattice constants of the α-LiIO3 single crystal originated in the growth process and the fluctuation phenomena of lattice constants under the action of an electrostatic field were investigated by an X-ray double-crystal spectro-meter in the (n, -n) arrangement.The results obtained support the view point that the enhancement of neutron diffraction intensity of the l≠0 reflection under the action of an electrostatic field along z-axis is due to the existence of a gradient of lattice constant c.</p> <br/>Acta Physica Sinica. 1978 27(3): 314-321. Published 2005-08-01 VARIATION OF LATTICE CONSTANTS IN THE α-LiIO&lt;sub&lt;3&lt;/sub&lt; SINGLE CRYSTAL UNDER THE ACTION OF AN ELECTROSTATIC FIELD YI SUN-SHENG, LIANG JING-KUI 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 314-321. article doi:10.7498/aps.27.314 10.7498/aps.27.314 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.314 314-321 //www.getgobooth.com/en/article/doi/10.7498/aps.27.322 Author(s): FENG KE-AN <br/><p>In this article, dynamical features of non - equilibrium phase transitions are dis-cussed, taking the physical problems of OPO and laser processes as two examples. The phase transition point is found to be the point of sudden change from a stable nodal point to a saddle point. The role of fluctuations and dissipations in such phase transi-tions is elucidated, and critical exponents analogous to those in the second order phase transition are found (β = 1/2, γ = 1).</p> <br/>Acta Physica Sinica. 1978 27(3): 322-330. Published 2005-08-01 Author(s): FENG KE-AN <br/><p>In this article, dynamical features of non - equilibrium phase transitions are dis-cussed, taking the physical problems of OPO and laser processes as two examples. The phase transition point is found to be the point of sudden change from a stable nodal point to a saddle point. The role of fluctuations and dissipations in such phase transi-tions is elucidated, and critical exponents analogous to those in the second order phase transition are found (β = 1/2, γ = 1).</p> <br/>Acta Physica Sinica. 1978 27(3): 322-330. Published 2005-08-01 TWO EXAMPLES OF NON-EQUILIBRIUM PHASE TRANSITION -OPTICAL PARAMETRIC OSCILLATION AND LASER FENG KE-AN 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 322-330. article doi:10.7498/aps.27.322 10.7498/aps.27.322 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.322 322-330 //www.getgobooth.com/en/article/doi/10.7498/aps.27.331 Author(s): SHENG JIAN <br/><p></p> <br/>Acta Physica Sinica. 1978 27(3): 331-338. Published 2005-08-01 Author(s): SHENG JIAN <br/><p></p> <br/>Acta Physica Sinica. 1978 27(3): 331-338. Published 2005-08-01 AN APPROXIMATE GRAPHIC METHOD TO CONSTRUCT THE DEMAGNETIZATION CURVE FOR PERMANENT MAGNETIC MATERIALS SHENG JIAN 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 331-338. article doi:10.7498/aps.27.331 10.7498/aps.27.331 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.331 331-338 //www.getgobooth.com/en/article/doi/10.7498/aps.27.339 Author(s): XU JI-AN <br/><p></p> <br/>Acta Physica Sinica. 1978 27(3): 339-343. Published 2005-08-01 Author(s): XU JI-AN <br/><p></p> <br/>Acta Physica Sinica. 1978 27(3): 339-343. Published 2005-08-01 AN ISOTHERMAL EQUATION OF STATE FOR SOLIDS (Ⅱ) XU JI-AN 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 339-343. article doi:10.7498/aps.27.339 10.7498/aps.27.339 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.339 339-343 //www.getgobooth.com/en/article/doi/10.7498/aps.27.344 Author(s): SHEN ZHU-TONG, WANG LI-JUN, YANG YI-JUAN, NIE JIAN-JUN, LIU YU-MING, ZHANG JUN <br/><p></p> <br/>Acta Physica Sinica. 1978 27(3): 344-348. Published 2005-08-01 Author(s): SHEN ZHU-TONG, WANG LI-JUN, YANG YI-JUAN, NIE JIAN-JUN, LIU YU-MING, ZHANG JUN <br/><p></p> <br/>Acta Physica Sinica. 1978 27(3): 344-348. Published 2005-08-01 THE MECHANISM OF SINTERING POLYCRYSTAL DIAMOND UNDER HIGH PRESSURE——THE INTERACTION BETWEEN THE BINARY INCLUSIONS AND DIAMOND SHEN ZHU-TONG, WANG LI-JUN, YANG YI-JUAN, NIE JIAN-JUN, LIU YU-MING, ZHANG JUN 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 344-348. article doi:10.7498/aps.27.344 10.7498/aps.27.344 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.344 344-348 //www.getgobooth.com/en/article/doi/10.7498/aps.27.349 Author(s): ZHANG DE <br/><p></p> <br/>Acta Physica Sinica. 1978 27(3): 349-352. Published 2005-08-01 Author(s): ZHANG DE <br/><p></p> <br/>Acta Physica Sinica. 1978 27(3): 349-352. Published 2005-08-01 SUPPRESSION OF DIRECT TRANSMISSION IN SAW RASONATOR FILTERS BY INVERSE PHASE IDT ZHANG DE 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 349-352. article doi:10.7498/aps.27.349 10.7498/aps.27.349 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.349 349-352 //www.getgobooth.com/en/article/doi/10.7498/aps.27.353 Author(s): LIU FU-SUI, WU HANG-SHENG <br/><p></p> <br/>Acta Physica Sinica. 1978 27(3): 353-355. Published 2005-08-01 Author(s): LIU FU-SUI, WU HANG-SHENG <br/><p></p> <br/>Acta Physica Sinica. 1978 27(3): 353-355. Published 2005-08-01 THE INFLUENCE OF THE JUNCTION RESISTANCE ON THE COUPLING BETWEEN THE MICROWAVE AND THE JOSEPHSON TUNNELING JUNCTION LIU FU-SUI, WU HANG-SHENG 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 353-355. article doi:10.7498/aps.27.353 10.7498/aps.27.353 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.353 353-355 //www.getgobooth.com/en/article/doi/10.7498/aps.27.356 Author(s): SHEN JIAN-YA <br/><p></p> <br/>Acta Physica Sinica. 1978 27(3): 356-360. Published 2005-08-01 Author(s): SHEN JIAN-YA <br/><p></p> <br/>Acta Physica Sinica. 1978 27(3): 356-360. Published 2005-08-01 A DISCUSSION ON THE INCIDENT ANGLES OF THE FOCUSING BEAM PROJECTING ON THE COVERED SREA ON THE OUTER SURFACE OF TUBE WALL UNDER NOT SHEN JIAN-YA 2005-08-01 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1978 27(3): 356-360. article doi:10.7498/aps.27.356 10.7498/aps.27.356 Acta Physica Sinica 27 3 2005-08-01 //www.getgobooth.com/en/article/doi/10.7498/aps.27.356 356-360

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