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The Sơn Vi culture is the name given to a culture of the late Palaeolithic and early Mesolithic Age in Vietnam. [1] [2] Sơn Vi itself is a village (xã) in Lâm Thao District, Phú Thọ Province. Sơn Vi is the official Chinese character tên chữ name of the village, it also has a demotic Vietnamese tên nôm name, kẻ Vây. [3]
Poly(p-phenylene vinylene) (PPV, or polyphenylene vinylene) is a conducting polymer of the rigid-rod polymer family. PPV is the only polymer of this type that can be processed into a highly ordered crystalline thin film. PPV and its derivatives are electrically conducting upon doping.
Poly Inc., formerly Polycom, is an American multinational corporation that develops video, voice and content collaboration and communication technology. Poly is a subsidiary of HP Inc. [ 2 ] [ 3 ] Polycom was co-founded in 1990 by Brian L Hinman and Jeffrey Rodman. [ 4 ]
Poly Property Group Co., Ltd., is a Hong Kong incorporated Chinese property developer, with its major businesses include property development, investment and management. It mainly develops mid to high-end residential and commercial properties in the cities along Yangtze River Delta and Pearl River Delta as well as the second-tier provincial ...
Polyethylene was first synthesized by the German chemist Hans von Pechmann, who prepared it by accident in 1898 while investigating diazomethane. [12] [a] [13] [b] When his colleagues Eugen Bamberger and Friedrich Tschirner characterized the white, waxy substance that he had created, they recognized that it contained long −CH 2 − chains and termed it polymethylene.
Từ điển bách khoa Việt Nam (lit: Encyclopaedic Dictionary of Vietnam) is a state-sponsored Vietnamese-language encyclopedia that was first published in 1995. It has four volumes consisting of 40,000 entries, the final of which was published in 2005. [1]
Polysulfone (PSU) repeating unit. Polyethersulfone (PES) repeating unit. Polysulfones are a family of high performance thermoplastics.These polymers are known for their toughness and stability at high temperatures.
A pUC19 cloning vector showing the multiple cloning site sequence with restriction enzyme sites. A multiple cloning site (MCS), also called a polylinker, is a short segment of DNA which contains many (up to ~20) restriction sites—a standard feature of engineered plasmids. [1]