The steady state operation of tokamak reactors requires re-radiating a substantial part of the fusion energy dissipated in plasma to make the heat loads onto the first wall more uniform and to reduce the erosion of divertor plates. One of the approaches realizing this goal uses injection of lithium dust jet into the scrape-off layer. In this paper a quantitative conceptual analysis of the react...

Two-dimensional numerical simulations are used to explore the mechanism for asymmetric deflection of the glottal jet during phonation. The model employs the full Navier-Stokes equations for the flow but a simple laryngeal geometry and vocal-fold motion. The study focuses on the effect of Reynolds number and glottal opening angle with a particular emphasis on examining the importance of the so-c...

PURPOSE This phase I clinical trial evaluated safety, feasibility, and efficiency of nonviral intratumoral jet-injection gene transfer in patients with skin metastases from melanoma and breast cancer. EXPERIMENTAL DESIGN Seventeen patients were enrolled. The patients received five jet injections with a total dose of 0.05 mg beta-galactosidase (LacZ)-expressing plasmid DNA (pCMVbeta) into a si...

We present a re-analysis of the optical spectroscopic data on SS 433 from the last quarter-century and demonstrate that these data alone contain systematic and identifiable deviations from the traditional kinematic model for the jets: variations in speed, which agree with our analysis of recent radio data; in precessioncone angle and in phase. We present a simple technique for separating out th...

The heat transfer enhancement of a jet issued from the circular cylinder placed in three-dimensional microchannel at low Reynolds numbers were studied systematically by using numerical simulation. effects on thermal efficiency evaluated varying injection ratios (I) and angles (θ). physical mechanism was revealed through analyses vorticity dynamic temperature field. results showed that proportio...

This prospective, nonblinded study, comparing jet injection with needle-syringe injection of lidocaine in performing digital blocks, tested the hypothesis that jet injection can be used effectively as a less painful way to perform digital blocks. Twenty-four adult patients with injuries of the middle or distal phalanges of the fingers received digital blocks using a jet injector on one side of ...

As a new manufacturing process, abrasive water jet (AWJ)cutting has been very effective for difficult-to-machine materials. From the point of view of jet generation, abrasive water jets can be categorized as injection jeti or suspension jets. Injection jets are the most commonly used type for practical applications. An injection AWJ is formed by accelerating small abrasive particles through con...

Abstract Cavitation peening is a peening method using impacts at cavitation bubble collapses generated by a cavitating jet. In order to introduce compressive residual stress avoiding damage on the peened surface, residual stress of stainless steel was investigated at various cavitating conditions. It was revealed that the large cavitating jet at low injection pressure such as 30 MPa can introdu...

Major pollutants emission from Direct-Injection (D.I) diesel engines are predicted by means of a mathematical model. In order to construct such a model, an integral Multi-Zone Combustion Model (MZCM) is formulated, which basically consists of jet mixing and combustion submodels. In MZCM, variation of injection pressure is considered. Also time period of ignition delay is predicted by considerin...