When the Political Spotlight is On: Social Evaluations of Ri Sŭnggi and Ryǒ Kyǒnggu, Two Chemical Engineers in North Korea [PDF]
International Journal of Korean History, 2021 Dr. Ri Sŭnggi is celebrated alongside vinalon (also known as vinylon) in North Korea. As a synthetic fiber produced from polyvinyl alcohol, vinalon was invented by the research team to which Ri Sŭnggi belonged in 1939, and industrial production began in ...
Eunsung Cho
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Composites polyvinyl alcohol filled with nanocellulose from oil palm waste by formic acid hydrolysis [PDF]
MATEC Web of Conferences, 2019 Composites polyvinyl alcohol filled with nanocellulose from oil palm empty fruit bunch (OPEFB) and oil palm fronds (OPF) have investigated. Nanocellulose prepared by formic acid 50 wt%.
Aprilia Sri +4 more
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Buildings, 2022 To improve the mechanical properties and frost resistance of concrete, silica fume, and polyvinyl alcohol fiber compounded in concrete. The mechanical and frost resistance of concrete were comprehensively analyzed and evaluated for strength change, mass ...
Yan Tan +3 more
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Effects of Different Strain Immobilization Methods on Protease Production of Aeromonas Hydrophila MSB16 [PDF]
Biological Journal of Microorganism, 2022 Introduction: Microbial strain immobilization has some benefits like the repeatability and cost-effectiveness of strain recovery in the fermentation process.
Matia Sadat Borhani
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International Journal of Electrochemical Science, 2018 A novel rutin (RT) electrochemical sensor was fabricated by using reduced graphene oxide (rGO)/magnetite (Fe3O4)/silver nanoparticle (Ag)-molecularly imprinted polymer (MIP) composite to modify screen-printed electrode (SPE). The ternary composite of rGO/
Shiru Yang +7 more
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Effects of Different Fibers on the Mechanical Properties of Red Mud-Coal Metakaolin Based Geopolymer
Taiyuan Ligong Daxue xuebao, 2023 In order to promote energy conservation and facilitate the utilization of solid wastes, red mud, coal metakaolin, and alkaline activators were used as main raw materials to prepare red mud-coal metakaolin based geopolymer (RCG).
Ruijie WANG +9 more
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Preparation of a Hydrogel Nanofiber Wound Dressing
Nanomaterials, 2021 The study addressed the production of a hydrogel nanofiber skin cover and included the fabrication of hydrogel nanofibers from a blend of polyvinyl alcohol and alginate. The resulting fibrous layer was then crosslinked with glutaraldehyde, and, after 4 h
Radek Jirkovec +4 more
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SYNTHESIS OF MAGNESIUM PHOSPHATES IN A POLYMERIC MATRIX
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020 The dependence of the phase composition of nanoscale magnesium phosphates (MgNH4PO4 · 6H2O, Mg(H2PO4)2, MgHPO4 · 3H2O, Mg3(PO4)2 · 22H2O) with 13 - 54 nm crystallite size on the conditions of precipitation from aqueous solutions in the presence of the ...
O.N. Musskaya +2 more
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Influences of Polyvinyl Alcohol Fiber Addition on the Specimen Size Effect and Energy Absorption of Self-Consolidating Concrete [PDF]
Civil Engineering Infrastructures Journal, 2022 Polyvinyl alcohol is one of the most efficient synthetic fibers in concrete technology; however, the size effect was rarely evaluated in Polyvinyl alcohol fiber-reinforced concretes.
Iman Abbasi Nattaj Omrani +2 more
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Iron(III) chelating resins-IV. Crosslinked copolymer beads of 1-(B-acrylamidoethyl)-3-hydroxy-2-methyl-4(1H)-pyridinone (AHMP) with 2-hydroxyethyl methacrylate (HEMA) [PDF]
, 1994 Iron(III) chelating beads have been synthesized by copolymerization of 1-(ß-acrylamidoethyl)-3-hydroxy-2-methyl-4(IH)-pyridinone (AHMP) with 2-hydroxyethyl methacrylate (HEMA), and ethyleneglycol dimethacrylate (EGDMA) as the crosslinking agent.
Bantjes, A. +2 more
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