The amount of pollutant gases in the atmosphere has reached a critical state due to an increase in industrial development and the rapid growth of automobile industries that use fossil fuels. The combustion of fossil fuels produces harmful gases such as carbon dioxide, nitrogen monoxide (NO), soot, particulate matter (PM), etc. The use of Dimethyl Ether (DME) biofuel in diesel engines or other c...

This study used land gravity and airborne magnetic data to investigate the depth magmatic chamber map heat flow distribution beneath active volcanoes of Hawaii Island using Curie point (CPD) modeling. Obtaining some ground-based geophysical measurements was problematic due accessibility limitations; therefore, this available data. The CPD were bottom layer by calculating isotherm (540°C) Island...

Introduction charge collection) of Q 104. The drift field was chosen to give an electron drift velocity of 1 cm/usec. %1/5 the saturated velocity in this gas mixture. The volume of uniform field (adequate for longitudinal drift measurenents of dE/dx) extends to within +3 mm of the sense plane and +l mm of the cathode planes. Hence, in principle, 80% of the track length through a chamber of this...

Thyroid hormone (TH) is critical in cardiac cell differentiation (regulating contractile proteins and cell geometry) and this effect could be potentially exploited therapeutically in reversing the process of de-differentiation which underlies postischemic cardiac remodeling. Acute myocardial infarction was induced in male Wistar rats by ligating left coronary artery (AMI, n=8), while sham opera...

There is evidence that hypertension is frequently associated with overweight/obesity even in kids and adolescents. Either conditions influence development of left ventricular (LV) hypertrophy (LVH), through different biological and hemodynamic mechanisms: obesity is conventionally thought to elicit a coherent growth of LV chamber dimensions and myocardial wall thickness (eccentric LV geometry),...

This paper presents a dynamic model of the interior ballistics of an experimental liquid propellant powered rifle. The liquid propellant powered rifle described utilizes a mixture of hydroxyl ammonium nitrate and hydrocarbon fuel to replace gunpowder typically used in such firearms. The motivation for such a development is to discard the need for a shell casing whereby carrying only propellant ...

This paper presented an experimental and numerical study of pre-chamber volume, number orifices orifice diameter influence on engine performance emissions. All the measurements were performed a single cylinder test at fixed speed 1600 rpm, while load was varied by change excess air ratio in main chamber from stochiometric mixture to lean limit. The total nine variants comprised three different ...

We have developed an in-plane bi-polymer check-valve for controlling microfluidic flow and preventing contamination between solutions by tilizing the elastic force of a swollen hydrogel. The valve was created using microfluidic tectonics, a fabrication procedure that allows construction f microscale components and autonomous systems using liquid-phase photopolymerization and in situ fabrication...