Homogeneous charge compression ignition technology has exhibited high potential to reduce fuel consumption and NOx emissions over normal spark-ignition engines significantly. Optimized kinetic process technology is implemented to realize homogeneous charge compression ignition combustion in a port fuel injection gasoline engine. The combustion and emission characteristics are investigated with ...

The effects of high sodium intake (drinking 0.9% NaCl for 15 days) on the increased renal sympathetic nerve activity and decreased urinary sodium excretion resulting from stressful environmental stimulation (air jet to head) were examined in conscious spontaneously hypertensive rats (SHR) and normotensive Wistar-Kyoto rats (WKY). On a normal sodium intake in SHR, air stress increased renal symp...

Pump intake is designed to provide adequate water supply to pumps. It is essential to design the pump intake to provide fairly uniform and swirl free flow to pumps. However, it is not always possible due to site constraints. Investigation of pump intake is required prior to installing the pumps at site. There are two approaches (experimental and numerical) followed for such investigation. The p...

Jet mixings of a coplanar alternating-lobe nozzle (CoALN), scarfing (ScALN), sword (SwALN), and chevron (SwChALN) were numerically investigated using three different far-field velocities to simulate the conditions pumping air intake stamping intake. It was confirmed that can be introduced increase cool involved in mixing for an infrared suppressor helicopter. found increases amount stream near ...

Expanding traditional time geography, this study examines personal exposure to air pollution and personal pollutant intake, and defines personal health danger zones by accounting for individual level space-time behavior. A 3D personal air pollution and health risk map is constructed to visualize individual space-time path, personal Air Quality Indexes (AQIs), and personal health danger zones. P...

Twenty-four laryngectomies, ranging widely in speaking ability, read a standard passage for audio recording. Four experienced voice clinicians rated the acceptability of the speakers' air intake noise. Independently, overall speech proficiency ratings were obtained for 18 of the subjects. Five objective measures of the subjects' esophageal speech were obtained using a real-time intensity displa...

Performance of a gas turbine mainly depends on the inlet air temperature. The power output of a gas turbine depends on the flow of mass through it. This is precisely the reason why on hot days, when air is less dense, power output falls. The objective here is to assess the advanced systems applied in reducing the gas turbine intake air temperature and examine the merits from integration of the ...

Forced-air warming devices are effective for the prevention of surgical hypothermia. However, these devices intake nonsterile floor-level air, and it is unknown whether they have adequate filtration measures to prevent the internal buildup or emission of microbial contaminants. We rated the intake filtration efficiency of a popular current-generation forced-air warming device (Bair Hugger model...

A model based control scheme is designed to regu late the cylinder air charge of a camless multicylinder engine for unthrottled operation The controller con sists of a feedforward and an adaptive feedback scheme based on a control oriented model of the breathing process of an engine equipped with electro hydraulic springless valve train The nonlinear control scheme is designed to achieve cylind...