Optical interconnects (OIs) continue to require more and sophisticated driver receiver electronics as higher baud rates are pushed in datacom, mainly due the bandwidth stagnation of optoelectronic components such vertical-cavity surface-emitting laser (VCSEL) transmitter well photodetector (PD) receiver. Another important focus is maintaining high energy efficiency for OIs. For both cases, a re...

Abstract Piecewise-focusing (PWF) collectors replace the heliostat field and central tower receiver of Gen 2 concentrating solar thermal (CST) power plants. The PWF collector consists a large base frame supporting tiered array reflectors that concentrate sunlight into cavity receiver. rotates about pivot to track sun in azimuth, while rotate individual nearly-horizontal inclined axes elevation....

abstract : before initiating any endodontic therapy, probability of extra canals should be considered. the incidence of three canals in mandibular second premolar has been reported to be 0.46-0.5%. the present report describes nonsurgical endodontic treatment of three mandibular second premolars with three canals. in these cases, three orifices were located in mesiobuccal, distobuccal and lingu...

Abstract An integrated receiver storage for a beam-down concentrating solar power (CSP) plant enables simplifying the system layout and reducing costs. Here two-layer (TLIRS) design is proposed consisting of cavity packed-bed storage. The first layer porous ceramic second one rocks. To enable performance optimization system, models radiation, two-phase transient heat transfer local thermal none...

Abstract Recent studies found that some structural damage can be attributed to the effect of surface waves. A shallow underground structure may heavily influenced by waves, which makes lose energy over distance more slowly than body This study deals with evaluating Rayleigh waves (R-waves) interaction cavities on seismic ground response and amplification pattern using Finite Element Method (FEM...