Conventional material removal of BK7 optical glass will normally result in brittle fracture at the surface, generating severe subsurface damage and poor surface finish. Subsurface damages induced by grinding strongly influence the mechanical strength and optical quality of optical glasses. However, through ductile mode grinding it is possible to reduce the surface and subsurface cracks. It is m...

A novel valveless micro impedance pump is proposed and analyzed in this study. The pump is constructed of a upper glass plate, two glass tubes, a PDMS (polydimethylsilxane) diaphragm with an electromagnetic actuating mechanism and a glass substrate. The actuating mechanism comprises an electroplated permanent magnet mounted on a flexible PDMS diaphragm and electroplated Cu coils located on a gl...

Complex profile and micro-channel generation in silica glass with higher machining depth is an exigent issue to the researchers by μ-ECDM process. Fundamentals of come from hybrid amalgamation effects ECM EDM. The intensity sparking contributes material erosion melting chemical etching job-specimen. paper consists parametric influences as well comparative analysis on (MD) surface roughness (Ra)...

currently available non-invasive clinical methods for diagnosing osteoporosis are mainly associated with ionizing radiation. ultrasonic assessment of bone disease is a more recent technology. a theoretical explanation for the relationship between ultrasonic parameters and bone structure is necessary. thus, two types of bone samples of perspex (hap) and perspex-glass beads were produced. each ty...