نتایج جستجو برای: injectors
تعداد نتایج: 1362 فیلتر نتایج به سال:
The Sources and Injectors Service is in charge of all the ion sources delivering beams to the main accelerators installed at LNL. In particular, both negative and positive ions can be produced: the first are extracted from two identical sputtering-type negative ion sources, model "860C" developed by HV Engineering [1]; the second are produced by a full permanent magnet Electron Cyclotron Resona...
Results Adrenaline auto-injector was prescribed in 258 children (66% boys and 34% girls). In 120 of them adrenaline auto-injector was prescribed de novo. 2% of them were babies, 31% 1 to 5 years old, 52% 6 to 14 years old and 15% 15 to 18 years old. In 66% adrenaline auto-injector was prescribed because of anaphylaxis, in 27% because of urticaria or/and angioedema and in 7% because of other rea...
The aeration process via injectors is used to combat the lack of oxygen in lakes due to eutrophication. A 3D numerical simulation of the resulting flow using a simplified model is presented. In order to generate the best dynamic in the fluid with respect to the aeration purpose, the optimization of the injectors location is considered. We propose to adapt to this problem the topological sensiti...
The formation of vortex or ‘string’ cavitation has been visualised at pressures up to 2000 bar in an automotive-sized optical diesel fuel injector nozzle. The multi-hole nozzle geometry studied allowed observation of the hole-to-hole vortex interaction and, in particular, that of a bridging vortex in the sac region between the holes. Above a threshold Reynolds number, their formation and appear...
The presence of a powerful accelerator complex that could serve as injector has been instrumental in the decision to build the LHC at CERN. This existing complex has now confirmed its capability, having demonstrated that it is able to deliver beam with the nominal characteristics as well as numerous other types of beams which will be essential for tuning-in, commissioning and operating the futu...
The momentum flux ratio (MFR) significantly affects the mixing characteristics and combustion efficiency of propellants in rocket engine injectors. spray three gas-centered swirl-coaxial injectors used a full-scale test were investigated according to change ratio. difference was analyzed through comparison with results using visualization quantification. cross-sectional shape droplet distributi...
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