Wireless signals are inherently generated during the spark discharges of micro-electro-discharge machining (μEDM). This work harnesses signals between 300-750 MHz for the monitoring of batch mode machining quality. In particular, the wireless spectra are used to sense incipient, debris-dominated machining that can be destructive to both the tool and the workpiece. Planar stainless steel (316L) ...

in isobaric models for inertial confinement fusion it is assumed that the target configurationat stagnation time (maximum compression) consists of two regions, hot spark and cold fuel, respectively.here the conditions of spark formation and ignition in hydrogen equimolar isotopes in central sparkignition are investigated and permissible values of hs and ts are evaluated numerically. by introduc...

The developments of Al and V free, biocompatible Ti-alloy have been the subject researcher in orthopedic joints replacement domain. current article addresses methodology chosen for design, machinability, low-cost surface texturing process a high degree biocompatibility. It is evident that an astonishing increase biocompatibility can be achieved by synchronizing electro-discharge spark energy wi...

Temperature is one of the effective parameters in erosion of spark plug electrodes. In this research, temperature of spark plug was measured in engine's different operation conditions with two types of fuels: compressed natural gas and gasoline. Test results showed that, temperature of center electrode is lower than ground electrode and maximum difference between them is 110ºC that occurs at...

Flash sintering is a very promising method with great potential for the ultra-rapid production of objects firing processes mere seconds. However, transition from few millimeters samples to larger scales key issue. In this study, we explore spark plasma approach allowing stable hybrid heating in flash condition and producing near net shape sintered specimens. Two electric current configurations ...

gas motion within the cylinder is one of the major factors that control the combustion process in spark ignition engine. it also has significant impact on heat transfer. both the bulk gas motion and the turbulence characteristics of the flow are important and governing the overall behavior of the flow. an arrangement for obtaining a stratified charge, using port injection, is proposed for a cur...

Introduction: One of the most important human senses is vision, which its loss is causing many primary and secondary complications for physical and psychological health such as difficulties in static and dynamic balance. This study aimed to compare the effect of 8 weeks of Spark and Frenkel exercises training on the static and dynamic balance in blind people. ...