منابع مشابه
Angiotensin II and Aging
Organ malfunction is an inevitable result of the natural process of aging which all species undergo. Modifications in organ structure directly related to aging cause functional deterioration of varying degrees in humans by, among other things, leading to replacement of functional parenchyma by fibro-connective tissues and induction of arteriosclerosis in the blood vessels of several organs. Age...
متن کاملCharacterization of Copper-Manganese Oxide Catalysts and Their Precursors: Effect of Precipitate Aging upon the Structure and Morphology of Precursors and Catalysts
Copper-manganese oxide catalysts are prepared with an atomic ratio of Cu/Mn=2/1 using a coprecipitation procedure under air atmosphere. The time of aging, i.e., the time that precipitate remains in contact with the precipitating medium, has been varied from 0 (for unaged precursor) to 300 minutes and the effect of precipitate aging time in each atmosphere upon the structure and morphology of di...
متن کاملEnvironmental effects on mechanical properties of glass/epoxy and fiber metal laminates, Part II: Isothermal aging
The aim of this study is to investigate effects of isothermal aging on mechanical properties of fiber metal laminates (FMLs) and glass/epoxy composites. For this purpose, both materials were fabricated using the wet lay-up manufacturing technique under vacuum pressure. Both the glass/epoxy composites and the FML specimens were then subjected to isothermal aging (130°C, dried air) for up to 5 we...
متن کاملDo antihypertensive drugs precipitate diabetes?
A longitudinal population study of 1462 women aged 38-60 was carried out from 1968-9 to 1980-1 in Gothenburg, Sweden. The initial and follow up examinations included questions concerning history of diabetes and antihypertensive treatment. A considerably increased risk of developing diabetes was observed for subjects with hypertension taking diuretics (895 patient years), subjects taking beta bl...
متن کاملPrecipitate coarsening in multicomponent systems
Expressions to obtain composition shifts due to capillarity are presented when the chemical potential shifts of the precipitate phase are taken into account. These are applied to calculate the precipitate coarsening kinetics in multicomponent systems, showing dependence on the solution thermodynamics followed by the continuous phase. 2002 Published by Elsevier Science Ltd. on behalf of Acta Mat...
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ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1950
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.71.314