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低饱和比熟料制备水泥混凝土的特性研究 被引量:1
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作者 劳祖漫 方盛楠 +2 位作者 林华 朱金阳 易绍任 《混凝土》 CAS 北大核心 2019年第6期76-77,83,共3页
采用某公司提供的两种水泥,分别是利用低品位石灰石生产的KH=0.82的低饱和比熟料制备的P·O 42.5级水泥为S1以及KH=0.9的正常熟料制备P·O 42.5级水泥为S2。通过做两种水泥以及在混凝土C30、C50的工作性能、抗压强度来表征S1、S... 采用某公司提供的两种水泥,分别是利用低品位石灰石生产的KH=0.82的低饱和比熟料制备的P·O 42.5级水泥为S1以及KH=0.9的正常熟料制备P·O 42.5级水泥为S2。通过做两种水泥以及在混凝土C30、C50的工作性能、抗压强度来表征S1、S2的差异性,结果表明S1在水泥以及混凝土C30、C50的工作性能上与S2相差不大,虽然S1在水泥胶砂以及在混凝土的早期强度上低于S2,但在后期强度上完全赶超S2,而且从C30、C50混凝土的强度方面表明S1更有利于制备高强度等级混凝土。 展开更多
关键词 低饱和比 水泥 混凝土 经损
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BGIDB:A fundus ground truth building tool with automatic DDLS classification for glaucoma research
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作者 ZOU Bei-ji GUO Yun-di +3 位作者 CHEN Zai-liang HE Qi ZHU Cheng-zhang OUYANG Ping-bo 《Journal of Central South University》 SCIE EI CAS CSCD 2018年第9期2058-2068,共11页
Taking advantage of the new standard HTML5,we designed an online tool called a browser/server-based glaucoma image database builder(BGIDB)for the demarcation of the optic disk and cup’s ellipse-like boundaries.The B-... Taking advantage of the new standard HTML5,we designed an online tool called a browser/server-based glaucoma image database builder(BGIDB)for the demarcation of the optic disk and cup’s ellipse-like boundaries.The B-spline interpolation algorithm is used,and a specially designed algorithm is proposed for classifying the disease grade according to the disc damage likelihood scale criterion,which is correlated strongly with the glaucoma process by quantity.This tool exhibits the best performance with a low overlapping error of 4.34%for the optic disk demarcation and 8.31%for the optic cup demarcation.It also has preferable time-consuming as compared to other tools and is a cross-platform system.This tool has already been utilized in building the ophthalmic image database in the cooperation of Center for Ophthalmic Imaging Research and The Second Xiangya Hospital. 展开更多
关键词 GLAUCOMA image database B-SPLINE disc damage likelihood scale(DDLS)
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