//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.19.139 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(3): 139-150. Published 2005-08-05 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(3): 139-150. Published 2005-08-05 КВАНТОВАЯ ТЕОРИЯ ФЕРРИМЛГНИТНОГО РЕЗОНАНСА——УСПОВИЯ РЕЗОНАНСА В ИЗОТРОПНОМ ФЕРРИТЕ 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(3): 139-150. article doi:10.7498/aps.19.139 10.7498/aps.19.139 Acta Physica Sinica 19 3 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.139 139-150 //www.getgobooth.com/en/article/doi/10.7498/aps.19.151 Author(s): SUN KUAN-YUNG, WEI YUNG-CHIO <br/><p>This paper is a preliminary report on acoustical studies of the sugar-cane fiber-board, emphasis being made for cases in which the fiberboard was perforated.Experiments with the non-perforated fiberboard indicated the existence of "mechanical vibration" determined by its boundary conditions including peripheral constraint, as well as of resonance absorption of thin panels backed by an air-space. When the fiberboard was perforated, resonance peaks became less prominent but the over-all absorption was higher than ordinary perforated panel absorbers previously investigated. In addition, two new types of perforated sound absorbers were briefly discussed.For most cases theoretical interpretations were given, especially on the basis of specific acoustic resistance, and both advantages and disadvantages for these fiberboard sound absorbers were discussed in the conclusion.</p> <br/>Acta Physica Sinica. 1963 19(3): 151-159. Published 2005-08-05 Author(s): SUN KUAN-YUNG, WEI YUNG-CHIO <br/><p>This paper is a preliminary report on acoustical studies of the sugar-cane fiber-board, emphasis being made for cases in which the fiberboard was perforated.Experiments with the non-perforated fiberboard indicated the existence of "mechanical vibration" determined by its boundary conditions including peripheral constraint, as well as of resonance absorption of thin panels backed by an air-space. When the fiberboard was perforated, resonance peaks became less prominent but the over-all absorption was higher than ordinary perforated panel absorbers previously investigated. In addition, two new types of perforated sound absorbers were briefly discussed.For most cases theoretical interpretations were given, especially on the basis of specific acoustic resistance, and both advantages and disadvantages for these fiberboard sound absorbers were discussed in the conclusion.</p> <br/>Acta Physica Sinica. 1963 19(3): 151-159. Published 2005-08-05 PRELIMINARY STUDIES OF PERFORATED "SUGAR-CANE FIBERBOARD" SOUND ABSORBERS SUN KUAN-YUNG, WEI YUNG-CHIO 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(3): 151-159. article doi:10.7498/aps.19.151 10.7498/aps.19.151 Acta Physica Sinica 19 3 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.151 151-159 //www.getgobooth.com/en/article/doi/10.7498/aps.19.160 Author(s): MING NAY-BEN, FAN TSUN-I, LI CHI, HSU YOU-SAN, FONG DUAN <br/><p>An electron bombardment furnace for laboratory use for the production of refractory metal single crystals is described. Molybdenum single crystals have been prepared and examined. Technique for the production of single crystals with controlled orientation is described. Microscopic examinations disclosed numerous terraces on the surfaces of Mo crystals, these terraces were tentatively identified as evaporation terraces.</p> <br/>Acta Physica Sinica. 1963 19(3): 160-164. Published 2005-08-05 Author(s): MING NAY-BEN, FAN TSUN-I, LI CHI, HSU YOU-SAN, FONG DUAN <br/><p>An electron bombardment furnace for laboratory use for the production of refractory metal single crystals is described. Molybdenum single crystals have been prepared and examined. Technique for the production of single crystals with controlled orientation is described. Microscopic examinations disclosed numerous terraces on the surfaces of Mo crystals, these terraces were tentatively identified as evaporation terraces.</p> <br/>Acta Physica Sinica. 1963 19(3): 160-164. Published 2005-08-05 PRODUCTION OF MOLYBDENUM SINGLE CRYSTALS WITH ELECTRON-BEAM FLOATING ZONE MELT MING NAY-BEN, FAN TSUN-I, LI CHI, HSU YOU-SAN, FONG DUAN 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(3): 160-164. article doi:10.7498/aps.19.160 10.7498/aps.19.160 Acta Physica Sinica 19 3 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.160 160-164 //www.getgobooth.com/en/article/doi/10.7498/aps.19.165 Author(s): FONG DUAN, MING NAY-BEN, LI CHI, LIN TIAN-NAN <br/><p>Oxalic acid solutions are used for producing etching pits on the surfaces of molybdenum crystals grown from electron-beam floating zone melt. By taking {100} as observation plane, dislocation densities along traces of three intersecting subboundaries are measured and the Read-Shockley formula for asymetrical tilt boundaries has been verified. The one-to-one correspondance between etching pits along these subboundaries and edge dislocations with Burgers vector &lt; (100) is demonstrated.</p> <br/>Acta Physica Sinica. 1963 19(3): 165-168. Published 2005-08-05 Author(s): FONG DUAN, MING NAY-BEN, LI CHI, LIN TIAN-NAN <br/><p>Oxalic acid solutions are used for producing etching pits on the surfaces of molybdenum crystals grown from electron-beam floating zone melt. By taking {100} as observation plane, dislocation densities along traces of three intersecting subboundaries are measured and the Read-Shockley formula for asymetrical tilt boundaries has been verified. The one-to-one correspondance between etching pits along these subboundaries and edge dislocations with Burgers vector &lt; (100) is demonstrated.</p> <br/>Acta Physica Sinica. 1963 19(3): 165-168. Published 2005-08-05 EXPERIMENTAL EVIDENCE FOR THE EXISTANCE OF DISLOCATIONS WITH BURGERS VECTOR &lt;100&lt; IN MOLYBDENUM CRYSTALS FONG DUAN, MING NAY-BEN, LI CHI, LIN TIAN-NAN 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(3): 165-168. article doi:10.7498/aps.19.165 10.7498/aps.19.165 Acta Physica Sinica 19 3 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.165 165-168 //www.getgobooth.com/en/article/doi/10.7498/aps.19.169 Author(s): JEN LANG <br/><p>The radiation of a thin linear monopole antenna of any length erected at the tip and along the axis of a metallic spheroid of any length and eccentricity is analized. The monopole is excited at its base. General expressions for the fields are obtained.</p> <br/>Acta Physica Sinica. 1963 19(3): 169-175. Published 2005-08-05 Author(s): JEN LANG <br/><p>The radiation of a thin linear monopole antenna of any length erected at the tip and along the axis of a metallic spheroid of any length and eccentricity is analized. The monopole is excited at its base. General expressions for the fields are obtained.</p> <br/>Acta Physica Sinica. 1963 19(3): 169-175. Published 2005-08-05 RADIATION FROM A LINEAR MONOPOLE ANTENNA AT THE TIP OF A METALLIC PROLATE SPHEROID JEN LANG 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(3): 169-175. article doi:10.7498/aps.19.169 10.7498/aps.19.169 Acta Physica Sinica 19 3 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.169 169-175 //www.getgobooth.com/en/article/doi/10.7498/aps.19.176 Author(s): WANG SHOU-WU <br/><p>A new method for measuring the life time of minority current carriers in semiconductors is described. Measurements are made by observing the photoconductive decay of the spreading resistance under a point contact. This method possesses the following advantages: (1) It is not necessary to cut the specimen into special form. (2) No fixed electrode has to be made to the specimen. (3) It is applicable to test inhomo-geneous specimen. (4) No particular surface treatment is necessary. (5) Apparatus used is simple and easy to operate. (6) Enough accuracy is obtainable. A theoretical analysis is given of the effects of surface recombination velocity and of varying absorption depth of the light in specimen. Experimental details and discussions are given for Ge and Si specimens. Results are in agreement with those obtained by other methods.</p> <br/>Acta Physica Sinica. 1963 19(3): 176-190. Published 2005-08-05 Author(s): WANG SHOU-WU <br/><p>A new method for measuring the life time of minority current carriers in semiconductors is described. Measurements are made by observing the photoconductive decay of the spreading resistance under a point contact. This method possesses the following advantages: (1) It is not necessary to cut the specimen into special form. (2) No fixed electrode has to be made to the specimen. (3) It is applicable to test inhomo-geneous specimen. (4) No particular surface treatment is necessary. (5) Apparatus used is simple and easy to operate. (6) Enough accuracy is obtainable. A theoretical analysis is given of the effects of surface recombination velocity and of varying absorption depth of the light in specimen. Experimental details and discussions are given for Ge and Si specimens. Results are in agreement with those obtained by other methods.</p> <br/>Acta Physica Sinica. 1963 19(3): 176-190. Published 2005-08-05 THE MEASUREMENT OF THE LIFE TIME OF MINORITY CURRENT CARRIERS IN SEMICONDUCTORS BY OBSERVING THE PHOTO-CONDUCTIVE DECAY OF THE SPREADING RESISTANCE UNDER A POINT CONTACT WANG SHOU-WU 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(3): 176-190. article doi:10.7498/aps.19.176 10.7498/aps.19.176 Acta Physica Sinica 19 3 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.176 176-190 //www.getgobooth.com/en/article/doi/10.7498/aps.19.191 Author(s): ZHUANG WEI-HWA, PAN GUI-SHENG <br/><p>The photo-conductive decay of the spreading resistance of Ge and Si is investigated. The influence of the surface recombination velocity and the depth of absorption of the exciting light on the shape of the decay curve are studied in detail. The decay curves obtained are consistent with those predicted by the theory. The conditions required for accurate measurement of bulk lifetime are also discussed.</p> <br/>Acta Physica Sinica. 1963 19(3): 191-201. Published 2005-08-05 Author(s): ZHUANG WEI-HWA, PAN GUI-SHENG <br/><p>The photo-conductive decay of the spreading resistance of Ge and Si is investigated. The influence of the surface recombination velocity and the depth of absorption of the exciting light on the shape of the decay curve are studied in detail. The decay curves obtained are consistent with those predicted by the theory. The conditions required for accurate measurement of bulk lifetime are also discussed.</p> <br/>Acta Physica Sinica. 1963 19(3): 191-201. Published 2005-08-05 MEASUREMENT OF MINORITY CARRIER LIFETIME IN Ge AND Si BY THE SPREADING-RESISTANCEPHOTO-DECAY METHOD ZHUANG WEI-HWA, PAN GUI-SHENG 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(3): 191-201. article doi:10.7498/aps.19.191 10.7498/aps.19.191 Acta Physica Sinica 19 3 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.191 191-201 //www.getgobooth.com/en/article/doi/10.7498/aps.19.202 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(3): 202-204. Published 2005-08-05 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(3): 202-204. Published 2005-08-05 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(3): 202-204. article doi:10.7498/aps.19.202 10.7498/aps.19.202 Acta Physica Sinica 19 3 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.202 202-204

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