The afterglow emission from a spreading jet expanding in a circumstellar cloud is discussed. Prompt X-ray radiation and a strong UV flash from the reverse shock produced by the interaction of the jet with the cloud may destroy and clear the dust out to about 30 pc within the initial solid angle of the jet. As the sideways expansion of the jet becomes significant, most of the optical radiation f...

In recent days, current research is going in alternative fuels due to increase in global warming and pollution in all over the world and also very stringent emission norms. In this way, the study on spray progress plays an important role in improving complete combustion and emission of fuel, because it is directly affects the air-fuel mixture formation. The macroscopic spray characteristics of ...

The bioavailability of recombinant human growth hormone (somatropin, CAS 12629-01-5) was compared between a transcutaneous jet injection device and subcutaneous cannula injection. Thirteen healthy male subjects received 8.64 IU somatropin once with jet and once with cannula injection in a randomized cross-over study. Baseline-corrected somatropin serum concentrations were evaluated with non-com...

Abstract In an aero-engine, the effect of oil-gas mixing directly affects working condition combustion chamber, and process RP-3 kerosene near near-critical point is more complicated because its physical properties are strongly affected by own temperature pressure changes. The injection was photographed under different conditions using high-speed ripple shadowing technology. It found that incre...

Wind turbine blades that undergo pitch-oscillating motion exhibit dynamic stall behavior, deteriorating their aerodynamic performance. In this regard, dielectric barrier discharge (DBD) plasma actuators are promising tools for controlling flow by inducing momentum jet flow. Four key parameters typically determine the jet: length, power, angle, and injection location. This paper presents a numer...

Plasma concentrations of lignocaine and the clearance rates of technetium-99m were compared in 10 healthy volunteers after injection with a gas-powered jet system and a needle and syringe. The dosage was highly accurate with jet injection. Bioavailability was comparable for both methods.

OBJECTIVE Insulin administered by jet injectors is dispensed over a larger subcutaneous area than insulin injected with a syringe, which may facilitate a more rapid absorption. This study compared the pharmacologic profile of administration of insulin aspart by jet injection to that by conventional insulin pen. RESEARCH DESIGN AND METHODS Euglycemic glucose clamp tests were performed in 18 he...

OBJECTIVE Clamp studies have shown that the absorption and action of rapid-acting insulin are faster with injection by a jet injector than with administration by conventional pen. To determine whether these pharmacokinetic changes also exist in patients with diabetes and benefit postprandial glucose control, we compared the pharmacologic profiles of insulin administration by jet injection versu...

The flow mechanism leading to the enhanced performance of a discrete co-flow jet (dCFJ) airfoil is investigated. Flow visualization and DPIV are used to analyze the difference between the flow along discrete jets and over the tabs used for discretization of the slot jet. Results show that the entrainment is uniform over the leading jet as long as the tab size is small enough. The jets expand sp...

The optimal design of the thrust vector control system solid rocket motors (SRMs) is discussed. injection a supersonic underexpanded gas jet into diverging part engine nozzle considered, and multiparameter optimization geometric shape parameters flow developed. turbulent viscous compressible in main simulated with Reynolds-averaged Navier–Stokes (RANS) equations shear stress transport (SST) tur...