Results 51 to 60 of about 712,370 (141)
, 2003 一种β-榄香烯五元氮杂环衍生物，其结构如I式或II式，其中R为：苯基、4-氯-苯基、3-氯-苯基、2-氯-苯基、4-吡啶基、3-吡啶基、2-吡啶基、4-氟-苯基、3-氟-苯基、2-氟-苯基、4-溴-苯基、3-溴-苯基、2-溴-苯基、4-甲基-苯基、3-甲基-苯基、2-甲基-苯基、2，4-二氯-苯基、4-碘-苯基、3-碘-苯基、2-碘-苯基、4-甲氧基-苯基、3-甲氧基-苯基、2-甲氧基-苯基、4-三氟甲基-苯基、3-三氟甲基-苯基、2-三氟甲基-苯基或C1-C5的烷烃取代，M＝O、S或NH基 ...
肖红斌 +3 more
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Evolution Behavior of Inclusions in Ti-IF Steel Steelmaking by 300t-BOF-RH-CC Flowsheet
Teshugang, 2017 Of tested Ti-IF steel (/%：≤0.0035C, ≤0.03Si, 0.08~0.20Mn, ≤0.025P, ≤0.015S, 0.05〜0.07Ti, 0.030~0.055Als, ≤0.0040N) the BOF end [C] is 0.03%〜0.06%, end [O] is 0.0030%~0.0060% , the lime and top slag modification agent containing aluminium are added during
姚思源
doaj
, 2017 报道西藏自治区林芝市发现的2种中国新外来植物:多籽藜Chenopodium polyspermum L.和瑞典藜C.suecicum Murr。两种植物在林芝市区绿化带和空地生长旺盛,并正常结实,说明其在西藏具有较强的入侵能力。调查表明 ...
李振宇 +3 more
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Effect of Casting Slab Defect on Cold Draw Quality of SWRH82B Steel Wire Coil
Teshugang, 2007 The microstructure and composition of fracture during cold drawing failure of wire coil of SWRH82B stell (0.80~0.84C,0.75~0.85Mn,0.18～0.22Cr,0.015～0.035Al) produced by 280 mm×380 mm casting slab have been observed and analyzed by scanning electron ...
赵莉萍 +3 more
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Evolution of Inclusion in 304 Stainless Steel during VOD + LF Refining Process
Teshugang, 2018 The change of inclusions in the VOD + LF refining process of 304 stainless steel was studied. Before and after the beginning and end of the smelting process of the second VOD furnace with continuous casting and continuous casting, before and after the ...
王传东, 王志军
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Analysis and Control of Macro Inclusion in Structural Steel Melting by EAF-LF-CC Process
Teshugang, 2007 The composition of macro inclusion in 20MnTiB steel and 45 steel melting by 70 t EAF-LF-CC flow sheet at Egang and ingredient of mold powder and refractory material for concasting process have been analyzed,and it is obtained that the macro inclusion
李冬生, 徐冠宇
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, 2014 本发明涉及一种快速，灵敏地检测邻苯二甲酸酯类化合物的方法。以放射性源为电离源的离子迁移谱技术为基本的检测技术，在正离子模式下，通过在循环气路中添加掺杂剂建立一种检测邻苯二甲酸酯类化合物的方法。掺杂剂的加入净化了离子迁移谱正离子模式下的背景谱峰 ...
陈创 +5 more
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Dynamics Model of Intra-Granular Ferrite Nucleation Induced by Inclusions
Teshugang, 2014 According to the experimental phenomena and thermodynamics mechanism of heterogeneous nucleation, combined with mathematic calculation, a dynamics model of intra-granular ferrite nucleation induced by inclusions has been established. Results show that in
朱立光 +3 more
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, 2019 为探讨杜鹃花属植物种间杂交的向性特征,依据该属5亚属、3组、12亚组、32种、33对正反交组合与自交性质清楚的186个杂交组合,对有关向性问题进行了初步研究。结果表明:(1)杜鹃花属植物种间杂交由双向可育→单向不育→双向不育的比率变化与其亲本的系统位置由原始→进化以及双亲间的亲缘关系由密切→疏远同向;原始的常绿杜鹃亚属(Subgen. Hymenanthes)内种间比较进化的杜鹃亚属(Subgen.
庄平
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Teshugang, 2013 The effect of 0. 000 5% ~Q. 001 2% Mg on inclusion formation and solidification structure of ferrite stainless steel 430 (/% : 0.04C, 0.25-0.32Si, 0.28-0.38Mn, 16.5-16.9Cr) melting by a 60 kg vacuum induction furnace has been tested and studied.
公茂涛, 陈兆平, 徐迎铁, 疏达
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