Results 81 to 90 of about 586,744 (148)
, 2003 本发明提供一种高灵敏度均相DNA杂交荧光测定法。它使用乙二胺四乙酸的铕配合物标记5’-末端或3’-末端的DNA探针，和一种二齿β-二酮标记3，-末端或5’-末端的DNA探针，同时用于DNA的杂交反应；当二种标记DNA探针与目标DNA杂交后，EDTA-Eu与β-二酮相互靠近进而形成EDTA-Eu-β-二酮强荧光性三元荧光配合物，通过时间分辨荧光法测定形成的三元荧光配合物荧光强度即可测得目标DNA的浓度。本发明的方法灵敏度更高，应用范围广 ...
袁景利, 王桂兰
core
Water Model Test of 58t Tundish with Channel Filter for Two Strands Slab Casting and Application
Teshugang, 2018 The effect of channel filter on fluid field of liquid in a 58t tundish has been studied by using geometric similarity 0.29 : 1 water model to test liquid flow by both control flow devices- turbulence controller + retaining wall + dam and turbulence ...
钟巍 +4 more
doaj
Scattering of sh wave by a crack inside a circular inclusion
, 2003 利用特殊函数的Graf加法公式和波函数展开方法得出了圆夹杂内作用集中力的格林函数。根据Bessel函数的渐近性质，对所得格林函数的奇异部分和有界部分进行了分离。利用所得的格林函数和互易定理得出了圆夹杂内裂纹在SH波作用下的散射场。根据裂纹的散射场建立了圆夹杂内裂纹的超奇异积分方程。对超奇异积分方程的数值求解 ...
陆建飞, 柳春图, 蔡兰
core
Practice of Steel 18CrNiMo7-6 Bloom by Process of 120 t BOF-LF-RH-410 mm x 530 mm Continuous Casting
Teshugang, 2019 The steel grade 18CrNiMo7-6 with diameter of Φ115 ~250 nun round from process route of hot metal + scrap-120 t BOF-RH- 410 mm x530 mm continuous casting-bloom heating by walking forward heating fumace-750 rolling¬annealing. Its chemical composition is (/%
李博鹏 +6 more
doaj
, 2014 本实用新型是一种恒温掺杂剂装置，掺杂物装置工作的恒温状态下，应用于离子迁移谱上，当恒定的气流吹过掺杂物装置时，能产生的恒定的掺杂物浓度，同时消除了环境温度对掺杂剂装置的影响。该装置结构简单，易于实现，体积小，工作可靠，性能稳定 ...
李海洋, 仓怀文, 李东明
core
Teshugang, 2005 According to the solubility product theory of second phase in austenite, Ostward ripening theory, grain size control theory and precipitation strengthening theory, the probability for formation of inclusions in austenite and the inclusion size control ...
雍岐龙 +4 more
doaj
[Determination of 13 prohibited alkaloids in essential oil-based cosmetics by ultra performance liquid chromatography-tandem mass spectrometry combining QuEChERS purification]. [PDF]
Se PuLiu Z +6 more
europepmc +1 more source
, 2018 为探索杜鹃花属植物亚属间杂交的可育性规律,该文对常绿杜鹃亚属(subgen. Hymenanthes)、杜鹃亚属(subgen. Rhododendron)及马银花亚属(subgen. Azaleastrum)、映山红亚属(subgen. Tsutsusi)和羊踯躅亚属(subgen. Pentanthera)的亚属间杂交进行了研究,共涉及杜鹃花属植物5亚属15亚组32种,杂交组合118个。结果表明:(1)杜鹃花属植物的亚属间杂交存在明显的生殖障碍,其可育性水平与亚属及其类群组合有关,高、中 ...
庄平
core
[[abstract]]本发明是关于式(I)的杂环化合物，另揭露包含该杂环化合物的药物组合物以及使用该杂环化合物驱使造血干细胞(HSC)及内皮前驱细胞(EPC)进入周边血液循环的方法。本发明更提供一种使用该杂环化合物治疗组织损伤、癌症、发炎性疾病 ...
赵宇生;夏克山;詹景智;邹伦;陈炯东
core +1 more source
[Establishment of an gastric dysfunction and depression comorbidity model simulating clinical etiology in mice using a combined stress protocol]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoHuang Q +7 more
europepmc +1 more source