نتایج جستجو برای: glass beads
تعداد نتایج: 83206 فیلتر نتایج به سال:
Controlling the powder flow by surface properties of particles as well understanding their flowability under different processing dynamics are amongst major challenges industry. Indeed, handling large quantities needs powders with good flowability, adequate compressibility and few electrostatic charges. We have performed a chemical treatment in order to obtain hydrophobic glass bead its bulk be...
A new approach to the synthesis of highly stable aqueous colloids of coordination polymer nanoparticles was developed by using water-soluble chitosan beads as template and as stabilizing agent. The method consists in the synthesis of nanocomposite beads containing cyano-bridged coordination polymer nanoparticles via step-by-step coordination of the metal ions and the hexacyanometallate precurso...
Abstract This article presents the discovery and analysis of a new glass bead assemblage from Swahili site Mkokotoni, an early second millennium AD settlement in northwestern Zanzibar. It explores possibilities for local production beads using imported cullet or tubes at this site. Glass are ubiquitous archaeological sites on East African coast. They presumed to have been traded via long-distan...
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