Biofilms were obtained from cocoons of the silkworm, Bombyx mori, involving removal sericin, extraction and solubilization fibroin fibers, dialysis dispersions preparation biofilms by casting process. Biofilm transparency was verified UV?Vis spectroscopy thermal stability thermogravimetric/differential scanning calorimetry (TG/DSC). Soon after preparation, solidification solution prepared extra...

Many natural materials demonstrate ideal design inspirations for the development of lightweight composite with excellent damage tolerance. One notable example is layered architecture nacre, which possesses toughness an order magnitude higher than its constituent parts. Man-made nacre-like ceramic/polymer composites obtained through direct infiltration polymer in ceramic scaffolds have been show...

We present here an alternative method for calculating magnifications in gravitational lensing calculations – the Ray Bundle method. We provide a detailed comparison between the distribution of magnifications obtained compared with analytic results and conventional ray-shooting methods. The Ray Bundle method provides high accuracy in the weak lensing limit, and is computationally much faster tha...

Present chemical-physical characteristics of ingot and continuous casting powders can be critically evaluated pointing out history of invention of these materials. In an original tone, pioneering nature of first developments of casting powders will be described, illustrating empirical know-how of casting powders technology, based on trial-and-error method. It will be originally emphasized that ...