Results 61 to 70 of about 7,538 (194)
Controlled Production and Degradation of Selected Biomaterials [PDF]
, 2010 Předložená disertační práce se zabývá studiem produkce a degradace polymerních materiálů s využitím mikroorganismů. Hlavní pozornost je upřena ke studiu produkce polyesterů bakteriálního původu - polyhydroxyalkanoátů.
Obruča, Stanislav
core +1 more source
Overview of liquid lubricants for advanced aircraft [PDF]
An overall status report on liquid lubricants for use in high-performance turbojet engines is presented. Emphasis is placed on the oxidation and thermal stability requirements imposed upon the lubrication system.
Loomis, W. R.
core +1 more source
Design and Realization of Measuring Coils for Diagnostics Quantity of Nanoparticles in Kerosene and Identifying of Type Natural Oil [PDF]
, 2015 The first part describes the design of the coil to detect the concentration of iron oxide nanoparticles (0.0 % to 0.5 %) in the kerosene sample using the impedance spectroscopy method.
Spohner, M.
core
Different Chain Length Tannic Acid Preparations as Coating Agents for Zein Nanoparticles
CompoundsProteins that are amphiphilic and have low water solubility can self-assemble into nanoparticles useful in food science, pharmaceutical science, or biotechnology. However, protein nanoparticles exhibit drawbacks such as low stability unless the particles
Sadeepa Y. Mallikarachchi +3 more
doaj +1 more source
Suitability of crude glycerol as a substrate for biobutanol production
Наукові доповіді Національного університету біоресурсів і природокористування УкраїниGlycerol is a natural polyol formed as a major by-product during biodiesel production. The use of glycerol, which is uniquely utilised by Clostridium pasteurianum, for butanol production is highly promising but requires a thorough understanding and ...
O. Tigunova
doaj +1 more source
Synthesis of polyformals [PDF]
, 1981 Formals of CH2OH(CHOH) sub n CH2OH polyols (n = 2 to 4) are prepared in less than 15 minutes by heating to about 125 C, a mixture of e.g. sorbitol and paraformaldehyde in slight excess (5 to 10%), in the presence of e.g.
Poshkus, A. C.
core +1 more source
Revista Brasileira de ZootecniaTannins represent one of the most abundant polyphenolic compounds in plants. Tannins exist as a multitude of chemically unique entities in nature.
Harley D. Naumann +3 more
doaj +1 more source
High temperature ablative foam [PDF]
, 1992 An ablative foam composition is formed of approximately 150 to 250 parts by weight polymeric isocyanate having an isocyanate functionality of 2.6 to 3.2; approximately 15 to 30 parts by weight reactive flame retardant having a hydroxyl number range from ...
Liu, Matthew T.
core +1 more source
Properties of Polyol Esters for Low GWP Refrigerants
, 2021 HFC (Hydrofluorocarbon) refrigerants, whose ODP (Ozone Depletion Potential) is 0, are used in refrigeration and air conditioning equipments recently. It is known that HFCs are high GWP (Global Warming Potential) refrigerants. In October 2016, Kigali Amendment to the Montreal Protocol was stated to achieve the phase-down of HFC refrigerants to prevent ...
Nakajima, Tatsuki +2 more
openaire +1 more source
Alignment of Carbon Nanotubes Comprising Magnetically Sensitive Metal Oxides in Nanofluids [PDF]
The present invention is a nanoparticle mixture or suspension or nanofluid comprising nonmagnetically sensitive nanoparticles, magnetically sensitive nanoparticles, and surfactant(s).
Hong, Haiping, Peterson, G. P. 'Bud'
core +1 more source