ELECT A ±10.5 V programmable pulse generator (PPG) fabricated by highvoltage (HV) BCD CMOS technology is demonstrated, where a charge pump composed of five cascaded voltage doublers is included to boost the voltage from 2.5 V to be higher than 10 V. A crossvoltage-domain operational amplifier is proposed to carry out voltage level conversion and amplification. HV analogue switches are also prop...

One of the important problems in reducing of pollutant emission from DI and IDI diesel engines is trade-off  between soot and NOx. Split injection is one of the most powerful tools that makes the chance to shift the trade-off curve closer to origin.  At the present work, the effect of split injection on the combustion process and emissions of a cylinder IDI diesel engine under the specification...

This paper discusses a process for validating the Airspace Concept Evaluation System using real world historical flight operational data. ACES inputs are generated from select real world data and processed to create a realistic reproduction of a single day’s operations within the National Airspace System. ACES outputs are then compared to real world operational metrics and delay statistics for ...

in this study, as for the re-casting, surface alloying and re-solidification layer of this alloys at the work piece level machining with wire electro discharge machining (wedm), changes of surface micro hardness with changes of operational parameters has been studied. therefore, study shows using surface alloying phenomena with the diffusion of wire material into the machined surface and select...

The DC motor is an important part of an equipment in many industrial applications requiring variable speed and load characteristics due to its ease of controllability. Nowadays, there are lots of good-quality motor speed controllers on the market. However, their costs are relatively high. A speed controller with both low cost and good performance will be highly marketable, especially for small ...