Collaboration efforts of the JINR TRT group, Russian institutions and the international scientific organizations in constructing the ATLAS Inner Detector TRT for LHC is summarized. R&D and TRT construction were accomplished during 1994–2007 at the Laboratory of Particle Physics of the Joint Institute ...
三苯甲基(Trt)是50年代开始用于多肽合成的,也被用于保护各种氨基,如氨基酸、青霉素、头孢霉素等。N-Trt-α-氨基酸的酯不能发生水解,需要较强的去保护条件,α-质子同样不易被脱去,这意味着,在分子中其他地方的酯可以选择性的水解。 在接肽反应中,Trt-氨基酸(除Trt-Gly和Trt-A...
西南科技大学硕士研究生学位论文 第1II页 actual situation of the Group TaT TRT Group proposed to further improve the effective financial control recommendations equally to modem society to pursue sound development of other Group companies have an important reference. Keywords:Enterprise Group;parent company...
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高炉煤气余压回收透平发电装置(简称TRT)是一种二次能量回收装置,节能环保。采用TRT替代减压阀组,回收了被减压阀组白白释放的能量,既净化了环境(回收了能源),又降低了噪音,同时可为企业带来可观的经济效益和社会效益。 TRT共用型TRT TRT可应用与多种布置形式,包括电动机+TRT,电动机+鼓风机+TRT三机组(BPRT),TRT+...
group_by(bras.f, id) %>% # 按治疗组和患者ID分组 slice(n()) %>% # 取每组的最后一行(即PD前最后时间点) select(bras.f, id, ps, ttc, tran) # 选择需要的列:治疗组、患者ID、倾向评分、治疗转换时间、治疗转换状态 # 合并基线数据和时间依赖协变量 ...
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FinancialsDividendsEarningsPrice HistoryEventsInsiders Trio-Tech International News Investing News, Analysis, and Tips Mar 26, 2022 7:00 AM EDT 10 Small-Cap Stocks That Still Look Intriguing Real Money Columnist James 'Rev Shark' Deporre updates promising names he first identified at the start of...