منابع مشابه
Innovative Monitoring of Atmospheric Gaseous Hydrogen Fluoride
Hydrogen fluoride (HF) is a basic raw material for a wide variety of industrial products, with a worldwide production capacity of more than three million metric tonnes. A novel method for determining particulate fluoride and gaseous hydrogen fluoride in air is presented herewith. Air was sampled using miniaturised 13 mm Swinnex two-stage filter holders in a medium-flow pumping system and throug...
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An initial 1,2-hydrogen shift versus a 1,3-deuterium shift in emerging FCD2CH2CH2 ions lead to differing patterns of deuteration in the neutral products that are recovered following reaction with a Brønsted base. Transient dideuterated fluoropropyl ions have been produced in [C3H4D2F PhO•] ion-neutral complexes by 70 eV electron impact on FCD2CH2CH2OPh and the resulting fluoropropenes collected...
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Two decades ago, the literature dealing with the possible applications of low molar mass liquid crystals, also called monomer liquid crystals (MLCs), only included about 50 references. Today, thousands of papers, conference reports, books or book chapters and patents refer to the study and applications of MLCs as lubricants and lubricant additives and efforts are made to develop new commercial ...
متن کاملTribology in biology
Man has conducted research in the field of tribology for several thousands of years. Nature has been producing lubricants and adhesives for millions of years. Biotribologists gather information about biological surfaces in relative motion, their friction, adhesion, lubrication and wear, and apply this knowledge to technological innovation as well as to the development of environmentally sound p...
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ژورنال
عنوان ژورنال: Journal of the Vacuum Society of Japan
سال: 2010
ISSN: 1882-4749,1882-2398
DOI: 10.3131/jvsj2.53.280