A computational optimization was performed for a direct-injection diesel engine using three-dimensional modeling. Fully transient CFD analyses of different valve profile strategies for the intake and compression strokes were performed to evaluate the effects on both engine performance and in-cylinder flow-field evolution. The turbulence model was used along with the second order linear upwin...

We gather and examine in detail gate decomposition techniques for continuous-variable quantum computers also introduce some new which expand on these methods. Both exact approximate methods are studied counts compared common operations. While each having distinct advantages, we find that decompositions have lower whereas can cover all operations but require significant circuit depth a modest pr...

PURPOSE The Ahmed glaucoma valve (AGV) implant is designed to prevent early postoperative hypotony. There is evidence of variation in hypotony rates in clinical trials which may be due to surgical technique variation, entry site leakage or valve defects from 'over priming'. We describe a simple preimplantation gravity driven test to assess valve function after priming that may reduce hypotony r...

Small diesel engines are widely used for commercial vehicle and passenger car applications due to their higher torque requirements, fuel economy, and better thermal efficiency. These engines are exposed to different operating and environmental conditions and hence emissions from these engines are erratic. Strategies are required to enhance performance and reduce engine-out emissions considering...

The phenomenon originating from spin-orbit coupling (SOC) provides energy-efficient strategies for spin manipulation and device applications. broken inversion symmetry interface resulting electric field induce a Rashba-type (SOF), which has been demonstrated to generate torque data storage In this study, we found that flipping can be achieved by the valley-Zeeman SOF in monolayer WSe2 at room t...

introduction: aortic valve sclerosisis considered as a manifestation of coronary atherosclerosis. recent studies demonstrated an association between aortic valve sclerosis and obstructive coronary artery disease. the purpose of this study was to evaluatethe correlation betweenaortic valve sclerosis andobstructive coronary artery disease and the extent of coronary artery disease in patients hosp...

Since economic liberalization period, Chinese housing typologies have experienced a dramatical change. From the traditional Siheyuan building type to the current gated communities, which prototype has become the most widespread residential housing type in modern China Cities. At the same time, many negative feedbacks about the city life have been appearing, such as traffic congestion, the loss ...

a 46 year old man had been undergone aortic valve replacement (avr) due to mechanical aortic valve endocarditis two month ago. he was referred to imam khomeini hospital because of dyspnea since two weeks ago. echocardiography showed the false aneurysm, with an area of flow beyond the lumen of the aorta. this patient underwent reoperation, the previously implanted aortic valve was removed, metic...

The p-i-n carbon nanotube (CNT) devices suffer from low ON/OFF current ratio and small saturation current. In this paper by band bending engineering, we improved the device performance of p-i-n CNT field effect transistors (CNTFET). A triple gate all around structure is proposed to manage the carrier transport along the channel. We called this structure multi-segment gate (MSG) CNTFET. Band to ...