//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.25.273 Author(s): ASTROPHYSICS GROUP <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 273-281. Published 1976-02-05 Author(s): ASTROPHYSICS GROUP <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 273-281. Published 1976-02-05 SOME TENTATIVE COMMENTS ON THE DEVELOPMENT OF MODERN COSMOLOGY ASTROPHYSICS GROUP 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 273-281. article doi:10.7498/aps.25.273 10.7498/aps.25.273 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.273 273-281 //www.getgobooth.com/en/article/doi/10.7498/aps.25.282 Author(s): LIU BO-WEN <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 282-283. Published 1976-02-05 Author(s): LIU BO-WEN <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 282-283. Published 1976-02-05 THE IDEALISTIC CONCEPT OF A FINITE UNIVERSE MUST BE CRITICIZED LIU BO-WEN 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 282-283. article doi:10.7498/aps.25.282 10.7498/aps.25.282 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.282 282-283 //www.getgobooth.com/en/article/doi/10.7498/aps.25.284 Author(s): LASER CRYSTALS RESEARCH GROUP <br/><p>For high perfection of structure in Nd-YAG laser crystals grown by the Czo-chralski method, the dislocation density of the crystals must be decreased. Research study seems to indicate that the direction of dislocation propagation is perpendicular to the solid-liquid interface. In crystals grown with a Convex solid-liquid interface, the low dislocation density is due to spreading out of the dislocations in the central part towards the surrounding areas and the edges. Hence, by applying suitable technology i. e. intentionally changing the shape of the solid-liquid interface, we can obtain crystals in which not only the dislocations are decreased, but also the facets are eliminated.</p> <br/>Acta Physica Sinica. 1976 25(4): 284-291. Published 1976-02-05 Author(s): LASER CRYSTALS RESEARCH GROUP <br/><p>For high perfection of structure in Nd-YAG laser crystals grown by the Czo-chralski method, the dislocation density of the crystals must be decreased. Research study seems to indicate that the direction of dislocation propagation is perpendicular to the solid-liquid interface. In crystals grown with a Convex solid-liquid interface, the low dislocation density is due to spreading out of the dislocations in the central part towards the surrounding areas and the edges. Hence, by applying suitable technology i. e. intentionally changing the shape of the solid-liquid interface, we can obtain crystals in which not only the dislocations are decreased, but also the facets are eliminated.</p> <br/>Acta Physica Sinica. 1976 25(4): 284-291. Published 1976-02-05 STUDIES ON DISLOCATIONS IN NEODYMIUM-DOPED ALUMINIUM-YTTRIUM GARNET (Nd-YAG) LASER CRYSTALS RESEARCH GROUP 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 284-291. article doi:10.7498/aps.25.284 10.7498/aps.25.284 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.284 284-291 //www.getgobooth.com/en/article/doi/10.7498/aps.25.292 Author(s): ZHANG JING-SHANG, ZHUO YI-ZHONG <br/><p>In this paper we use the microscopic "double well-cluster shell model" to discuss the existence of spurious states of motion of the center of mass during nuclear fission and heavy ion reactions. We outline the derivation of the general formulae with which the ,wave functions of the motion of the center of mass can be separated. Taking Be8 as an example, the existence of the spurious states is illustrated, and the components of these states and their corrections to the energy matrix elements are quantitatively evaluated.Through the analysis of the results of Be8 mentioned above, we conclude: although the propartion of the spurious states is only several per cent, their corrections to the fission barrier are significant, even larger then the corrections due to coulomb energy, and it is necessary to take them into account in accurate quantitative calculations. For a heavier nucleus, or higher excited states, the spurious states of the motion of the center of mass should be considered in more detail.</p> <br/>Acta Physica Sinica. 1976 25(4): 292-307. Published 1976-02-05 Author(s): ZHANG JING-SHANG, ZHUO YI-ZHONG <br/><p>In this paper we use the microscopic "double well-cluster shell model" to discuss the existence of spurious states of motion of the center of mass during nuclear fission and heavy ion reactions. We outline the derivation of the general formulae with which the ,wave functions of the motion of the center of mass can be separated. Taking Be8 as an example, the existence of the spurious states is illustrated, and the components of these states and their corrections to the energy matrix elements are quantitatively evaluated.Through the analysis of the results of Be8 mentioned above, we conclude: although the propartion of the spurious states is only several per cent, their corrections to the fission barrier are significant, even larger then the corrections due to coulomb energy, and it is necessary to take them into account in accurate quantitative calculations. For a heavier nucleus, or higher excited states, the spurious states of the motion of the center of mass should be considered in more detail.</p> <br/>Acta Physica Sinica. 1976 25(4): 292-307. Published 1976-02-05 SPURIOUS STATES OF MOTION OF THE CENTER OF MASS IN THE DOUBLE WELL-CLUSTER SHELL MODEL ZHANG JING-SHANG, ZHUO YI-ZHONG 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 292-307. article doi:10.7498/aps.25.292 10.7498/aps.25.292 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.292 292-307 //www.getgobooth.com/en/article/doi/10.7498/aps.25.308 Author(s): CAO CHANG-QI, QIN DAN-HUA <br/><p>Dyson representation is applied to find out whether the scaling property can be derived without reliance on the knocked-out mechanism. It is shown that, provided the spectral function in the Dyson represention of the matrix element of the current operators commutator has the proper behavior for large m2, the scaling property then follows for large v. No restriction whatever is required for q2, which may be very small even approaching zero. This characteristic seems to be consistent with the experiments. Furthermore, for a given v, the structure tensor Wμv is only determined by the spectral function inside the region m2≤Mpv, with no dependence on the true asymptotic behavior at m2→∞. Therefore the present observed scaling may only be a phenomena within a certain range. As v becomes still larger, the situation will probably change qualitatively.</p> <br/>Acta Physica Sinica. 1976 25(4): 308-315. Published 1976-02-05 Author(s): CAO CHANG-QI, QIN DAN-HUA <br/><p>Dyson representation is applied to find out whether the scaling property can be derived without reliance on the knocked-out mechanism. It is shown that, provided the spectral function in the Dyson represention of the matrix element of the current operators commutator has the proper behavior for large m2, the scaling property then follows for large v. No restriction whatever is required for q2, which may be very small even approaching zero. This characteristic seems to be consistent with the experiments. Furthermore, for a given v, the structure tensor Wμv is only determined by the spectral function inside the region m2≤Mpv, with no dependence on the true asymptotic behavior at m2→∞. Therefore the present observed scaling may only be a phenomena within a certain range. As v becomes still larger, the situation will probably change qualitatively.</p> <br/>Acta Physica Sinica. 1976 25(4): 308-315. Published 1976-02-05 DEEP INELASTIC ELECTRON-PROTON SCATTERING (Ⅱ) CAO CHANG-QI, QIN DAN-HUA 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 308-315. article doi:10.7498/aps.25.308 10.7498/aps.25.308 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.308 308-315 //www.getgobooth.com/en/article/doi/10.7498/aps.25.316 Author(s): ELEMENTARY PARTICLE THEORY GROUP <br/><p>The present paper starts from the Bethe-Salpeter equation for the bound states of a fermion and anti-fermion pair. Assuming that the interaction between the straton and anti-straton can be represented approximately by an instantaneous interaction in the center of mass system, we obtain the following main conclusions: (1) the solution of the Bethe-Salpeter equation may be carried out in ordinary three dimensional space and the numbers of components of the wave functions for the pseudo-scalar and vector mesons reduce respectively from 4 and 8 to 2 and 4; (2) If the interaction is spherically symmetrical in space and its spinor structure is of the diagonal coupling type, then it is seen from the equation for the pseudo-scalar mesons that the meson mass appears as a quadratic eigen value in the equation, without leading to the negative energy excitation usually encountered in the fourdimensional equation; (3) The structure wave function obtained in the instantaneous interaction may be used to study both the mass spectra of the bound states, and the processes involving only the center of mass system.</p> <br/>Acta Physica Sinica. 1976 25(4): 316-323. Published 1976-02-05 Author(s): ELEMENTARY PARTICLE THEORY GROUP <br/><p>The present paper starts from the Bethe-Salpeter equation for the bound states of a fermion and anti-fermion pair. Assuming that the interaction between the straton and anti-straton can be represented approximately by an instantaneous interaction in the center of mass system, we obtain the following main conclusions: (1) the solution of the Bethe-Salpeter equation may be carried out in ordinary three dimensional space and the numbers of components of the wave functions for the pseudo-scalar and vector mesons reduce respectively from 4 and 8 to 2 and 4; (2) If the interaction is spherically symmetrical in space and its spinor structure is of the diagonal coupling type, then it is seen from the equation for the pseudo-scalar mesons that the meson mass appears as a quadratic eigen value in the equation, without leading to the negative energy excitation usually encountered in the fourdimensional equation; (3) The structure wave function obtained in the instantaneous interaction may be used to study both the mass spectra of the bound states, and the processes involving only the center of mass system.</p> <br/>Acta Physica Sinica. 1976 25(4): 316-323. Published 1976-02-05 SOME DISCUSSIONS ON THE STRUCTURE WAVE FUNCTIONS OF MESONS FOR THE INSTANTANEOUS INTERACTION APPROXIMATION (Ⅰ)——GENERAL PROPERTIES OF WAVE FUNCTIONS OF MESONS IN THE INSTANTANEOUS INTERACTION CASE ELEMENTARY PARTICLE THEORY GROUP 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 316-323. article doi:10.7498/aps.25.316 10.7498/aps.25.316 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.316 316-323 //www.getgobooth.com/en/article/doi/10.7498/aps.25.324 Author(s): XU JI-AN <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 324-326. Published 1976-02-05 Author(s): XU JI-AN <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 324-326. Published 1976-02-05 AN ISOTHERMAL EQUATION OF STATE FOR SOLIDS XU JI-AN 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 324-326. article doi:10.7498/aps.25.324 10.7498/aps.25.324 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.324 324-326 //www.getgobooth.com/en/article/doi/10.7498/aps.25.327 Author(s): YANG YING-CHANG <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 327-330. Published 1976-02-05 Author(s): YANG YING-CHANG <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 327-330. Published 1976-02-05 ON THE COERCIVITY OF THE RCo&lt;sub&lt;5&lt;/sub&lt; COMPOUNDS YANG YING-CHANG 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 327-330. article doi:10.7498/aps.25.327 10.7498/aps.25.327 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.327 327-330 //www.getgobooth.com/en/article/doi/10.7498/aps.25.331 Author(s): LI BING-AN, YUAN TONG-ZE <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 331-335. Published 1976-02-05 Author(s): LI BING-AN, YUAN TONG-ZE <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 331-335. Published 1976-02-05 MESONIC WAVE FUNCTIONS AT ZERO POINT AND DECAY PROCESSES π&lt;sub&lt;μ2&lt;/sub&lt;, K&lt;sub&lt;μ2&lt;/sub&lt; AND 1&lt;sup&lt;-&lt;/sup&lt;→e&lt;sup&lt;+&lt;/sup&lt;e&lt;sup&lt;-&lt;/sup&lt; LI BING-AN, YUAN TONG-ZE 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 331-335. article doi:10.7498/aps.25.331 10.7498/aps.25.331 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.331 331-335 //www.getgobooth.com/en/article/doi/10.7498/aps.25.336 Author(s): NI GUANG-JIONG <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 336-339. Published 1976-02-05 Author(s): NI GUANG-JIONG <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 336-339. Published 1976-02-05 THE PAIRING VIBRATION MODEL OF MESON STATES NI GUANG-JIONG 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 336-339. article doi:10.7498/aps.25.336 10.7498/aps.25.336 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.336 336-339 //www.getgobooth.com/en/article/doi/10.7498/aps.25.340 Author(s): WANG DING-SHENG, PU FU-CHO <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 340-341. Published 1976-02-05 Author(s): WANG DING-SHENG, PU FU-CHO <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 340-341. Published 1976-02-05 A SIMPLE MODEL FOR NON-UNIFORM FERROMAGNETS WANG DING-SHENG, PU FU-CHO 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 340-341. article doi:10.7498/aps.25.340 10.7498/aps.25.340 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.340 340-341 //www.getgobooth.com/en/article/doi/10.7498/aps.25.342 Author(s): EMULSION CHAMBER GROUP <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 342-343. Published 1976-02-05 Author(s): EMULSION CHAMBER GROUP <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 342-343. Published 1976-02-05 A PRELIMINARY STUDY OF ULTRA-HIGH ENERGY γ-RAYS USING AN EMULSION CHAMBER EMULSION CHAMBER GROUP 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 342-343. article doi:10.7498/aps.25.342 10.7498/aps.25.342 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.342 342-343 //www.getgobooth.com/en/article/doi/10.7498/aps.25.344 Author(s): TOUGHNESS GROUP, METAL PHYSICS <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 344-351. Published 1976-02-05 Author(s): TOUGHNESS GROUP, METAL PHYSICS <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 344-351. Published 1976-02-05 MEASUREMENT OF THE INITIATION OF CRACK PROPAGATION BY AN ELECTRICAL RESISTANCE METHOD TOUGHNESS GROUP, METAL PHYSICS 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 344-351. article doi:10.7498/aps.25.344 10.7498/aps.25.344 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.344 344-351 //www.getgobooth.com/en/article/doi/10.7498/aps.25.352 Author(s): SPEECH RECOGNITION RESEARCH GROUP <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 352-354. Published 1976-02-05 Author(s): SPEECH RECOGNITION RESEARCH GROUP <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 352-354. Published 1976-02-05 THE USE OF CORRELATION MATRICES IN SPOKEN DIGITS RECOGNITION SPEECH RECOGNITION RESEARCH GROUP 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 352-354. article doi:10.7498/aps.25.352 10.7498/aps.25.352 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.352 352-354 //www.getgobooth.com/en/article/doi/10.7498/aps.25.355 Author(s): QIN YUAN-XUN <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 355-361. Published 1976-02-05 Author(s): QIN YUAN-XUN <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 355-361. Published 1976-02-05 THEORY OF LOCAL INSTANTANEOUS SYMMETRY OF SPACE-TIME UNDER VARIABLE VELOCITY CONDITION QIN YUAN-XUN 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 355-361. article doi:10.7498/aps.25.355 10.7498/aps.25.355 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.355 355-361 //www.getgobooth.com/en/article/doi/10.7498/aps.25.362 Author(s): LIU LIAO, YANG YI-HONG, CHEN FANG-PEI, SHAO JI-QUN <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 362-366. Published 1976-02-05 Author(s): LIU LIAO, YANG YI-HONG, CHEN FANG-PEI, SHAO JI-QUN <br/><p></p> <br/>Acta Physica Sinica. 1976 25(4): 362-366. Published 1976-02-05 关于“典型时空”的问题讨论 LIU LIAO, YANG YI-HONG, CHEN FANG-PEI, SHAO JI-QUN 1976-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1976 25(4): 362-366. article doi:10.7498/aps.25.362 10.7498/aps.25.362 Acta Physica Sinica 25 4 1976-02-05 //www.getgobooth.com/en/article/doi/10.7498/aps.25.362 362-366

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