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Annealing Embrittlement in Fe-Mo-Si-B Amorphous Alloy
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作者 li, jm Quan, MX Hu, ZQ 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 1997年第1期61-64,共4页
Annealing at T-a=200 degrees C or so, the enhancement in the average tensile fracture strength of as-quenched (Fe0.99Mo0.01)(78)Si9B13 metallic glass increases about 7 similar to 8%. The origin of the annealing embrit... Annealing at T-a=200 degrees C or so, the enhancement in the average tensile fracture strength of as-quenched (Fe0.99Mo0.01)(78)Si9B13 metallic glass increases about 7 similar to 8%. The origin of the annealing embrittlement at 244 degrees C in the metallic glass (Fe0.99Mo0.01)(78)Si9B13 was revealed that due to the formation of nanoscale granular with bcc structure resulting in the stress localization. The temperature of annealing embrittlement was in agreement with the calculated value from T-bcc=0.637 T-c (T-c is the crystallized temperature), based on micromechanism of crystallization of metallic glass. 展开更多
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Plant regeneration from dry mature endosperm cultures of Eucommia ulmoides Oliv.
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作者 Zhu, DY Jiang, JH +5 位作者 Pei, DQ Tian, HQ Wang, M Zhu, M Mi, JJ li, jm 《Chinese Science Bulletin》 SCIE EI CAS 1997年第8期703-704,共2页
EUCOMMIA ulmoides is not only a famous medicinal plant,but also a most promising rubber-source plant in the temperate zone.All the individuals present in this species are diploid(2n=2x=34),and the objective of this wo... EUCOMMIA ulmoides is not only a famous medicinal plant,but also a most promising rubber-source plant in the temperate zone.All the individuals present in this species are diploid(2n=2x=34),and the objective of this work is to establish a novel triploid type of it so as to im-prove its overall biomass output or rubber content in the leaf cells by the characteristic cell en- 展开更多
关键词 Plant regeneration from dry mature endosperm cultures of Eucommia ulmoides Oliv
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The first internal-tide deposits found in China 被引量:5
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作者 Gao, ZZ He, YB +3 位作者 li, jm li, WF Luo, SS Wang, ZZ 《Chinese Science Bulletin》 SCIE EI CAS 1997年第13期1113-1117,共5页
NOT until Gao Zhenzhong and Eriksson studied the Ordovician of Fincastle area, Appalachi-ans, the USA in 1990, did sedimentologist recognize internal-tide deposits in the ancientrecord and begin to use the term of ... NOT until Gao Zhenzhong and Eriksson studied the Ordovician of Fincastle area, Appalachi-ans, the USA in 1990, did sedimentologist recognize internal-tide deposits in the ancientrecord and begin to use the term of 'internal-tide deposit'. In the Ordovician of Fincastlearea, two facies are recognized: (i) bidirectional cross-laminated very fine grained 展开更多
关键词 sedimentary facies internal-tide DEPOSITS BIDIRECTIONAL cross-laminations COUPLET BIDIRECTIONAL graded sequences
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