难解 发表于 2025-3-28 17:10:50
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On One Locus in the Planeen planar quadrilateral . are concyclic. In general the locus is a cubic curve. We get a correspondence between some types of quadrilaterals and some classes of cubic curves. In the paper we answer several questions: For which quadrilaterals is the searched locus a cubic curve and for which a conic?东西 发表于 2025-3-29 13:36:16
http://reply.papertrans.cn/47/4602/460103/460103_46.pngmonochromatic 发表于 2025-3-29 15:35:03
Geometric Constructive Traces in Drawings by Francesco Borromini, relating to designs of cupolas, in order to highlight the geometric constructions and the proportional relationships in function of the realization of the projects. In fact, besides the symbolic geometries traceable especially in the most famous buildings, such as the San Carlo alle Quattro Fontansacrum 发表于 2025-3-29 20:38:14
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e recent review of literature on using CMOS processes for La1.1 Overview of Lab-on-Chip Laboratory-on-Chip (LoC) is a multidisciplinary approach used for the miniaturization, integration and automation of biological assays or procedures in analytical chemistry . Biology and chemistry are experiEmmenagogue 发表于 2025-3-30 07:34:01
Hellmuth Stachelgical assays or procedures in analytical chemistry . Biology and chemistry are experimental sciences that are continuing to evolve and develop new protocols. Each protocol offers step-by-step laboratory instructions, lists of the necessary equipments and required biological and/or chemical subs