Relaxation and physical aging in network glasses: a review
نویسندگان
چکیده
منابع مشابه
Physical aging in polymer glasses.
Physical aging refers to structural relaxation of the glassy state toward the metastable equilibrium amorphous state, and it is accompanied by changes in almost all physical properties. These changes, which must be taken into account in the design, manufacture, and use of glassy polymer materials and devices, present a daunting challenge to theorists.
متن کاملA review on nutrition and skin aging
Background: Skin reflects the general health status and is not an exception in the process of aging. Intervention studies indicate that it is possible to delay skin aging and improve skin conditions through diet-based anti-aging strategies. The purpose of the current work was to review recent existing literature regarding the role of nutrition, for and against skin aging processes.Method: This ...
متن کاملbioactive glasses in dentistry: a review
bioactive glasses are silicate-based and can form a strong chemical bond with the tissues. these biomaterials are highly biocompatible and can form a hydroxyapatite layer when implanted in the body or soaked in the simulated body fluid. due to several disadvantages, conventional glass processing method including melting of glass components, is replaced by sol-gel method with a large number of b...
متن کاملRelaxation processes in harmonic glasses?
A relaxation process, with the associated phenomenology of sound attenuation and sound velocity dispersion, is found in a simulated harmonic Lennard-Jones glass. We propose to identify this process with the so-called microscopic (or, instantaneous) relaxation process observed in real glasses and supercooled liquids. A model based on the memory function approach accounts for the observation and ...
متن کاملPhysical Activity and Exercise Recommendations in Pregnancy; a Review Study
Many women today tend to exercise during pregnancy. Given the importance of this period of life, the present study was conducted to investigate the effects of exercise on pregnancy and the recommendations that should be considered. According to studies, despite physiological and anatomical changes in pregnancy, physical activity in improving cardiovascular fitness, preventing overweight, preven...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Reports on Progress in Physics
سال: 2016
ISSN: 0034-4885,1361-6633
DOI: 10.1088/0034-4885/79/6/066504