Yellow luminescence (YL) is probably the longest and most studied defect-related band in GaN, yet its electronic structure or chemical identity remain unclear. Most of theoretical work so far has attributed feature to bulk defects, whereas spectroscopic studies have suggested a surface origin. Here, we apply deep level spectroscopy using sub-bandgap photovoltage that provides energy distributio...

Wood utilisation is an important factor affecting production costs, but the combined rate of wood generally only 50 to 70%. During process, rejection scheme defects one most factors yield. This paper provides overview main quality, introduces techniques for detecting and identifying using different technologies, highlights more widely used image recognition-based surface defect identification m...

A technique for registering and relating events that cause an observable definable system state is proposed. Discrete of system-state transfer are expressed by event tracking clustering in the form contiguous quanta data. This approach capable describing typical processes industrial systems a chain codes contain input/output parameters. The constituent nodes Markovian Processes series akin to g...

purpose: to evaluate the diagnostic signs, intraoperative complications and postoperative outcomes in children with congenital cataract and pre-existing posterior capsule defect (ppcd). methods: this interventional case series was conducted on 14 eyes of 7 patients who underwent lensectomy-anterior vitrectomy for congenital cataract with ppcd. all children had bilateral cataract. preoperative d...

BACKGROUND The effect of osteoallograft repair of a Hill-Sachs lesion and the effect of allograft fit on glenohumeral translations in response to applied force are poorly understood. PURPOSE To compare the impact of a 25% Hill-Sachs lesion, a perfect osteoallograft repair (PAR) of a 25% Hill-Sachs lesion, and an "imperfect" osteoallograft repair (IAR) of a 25% Hill-Sachs lesion on glenohumera...