نتایج جستجو برای: particle injector
تعداد نتایج: 177872 فیلتر نتایج به سال:
BACKGROUND Studies demonstrate that both doctors and patients may use adrenaline auto-injector improperly and the usage skills are improved by training. In this study, we aimed to determine the appropriate frequency of training to maintain skills for adrenaline auto-injector use. METHODS We invited all interns of 2011-2012 training period. At baseline, all participants were given theoretical ...
A major challenge in high-resolution x-ray free-electron laser-based coherent diffractive imaging is the development of aerosol injectors that can efficiently deliver particles to the peak intensity of the focused X-ray beam. Here, we consider the use of a simple convergent-orifice nozzle for producing tightly focused beams of particles. Through optical imaging we show that 0.5 μm particles can...
The CEBAF injector is designed to produce three cw polarized beams to be simultaneously accelerated and delivered to three experimental halls. These beams have independent current controls that can be as low as few hundred pico-amperes or as high as 200 microamperes. The beams are created in a photocathode gun using 3 separate rf gain switched lasers each operating at 499 MHz which together mak...
The aim of this study was to investigate the effects of various marination processes on the quality characteristics of chicken breast prepared with chicken feet gelatin and wheat fiber. The chicken feet gelatin was swollen with hydrochloric solution (0.1 N HCl, pH 1.31±0.02) and dehydrated by freeze-drying. The composition (w/w) of the marinade was water (10%), soy sauce (12%), phosphate (0.3%)...
A new injector made of a 100 MeV Linac and a 2.5 GeV booster ring is being built at ELETTRA to provide full energy injection into the storage ring in top-up mode. This project has required a novel design of the control system with the adoption of a new architecture and the use of up to date technologies, which will also be the basis of the control systems for future projects and accelerators up...
We present results of a 1D analysis demonstrating that electrons oscillating in a Penning trap may drain the energy stored in an adjacent active medium. Consequently, energy imparted by the active medium to the electrons allows them to leave the trap. A simplified configuration is analysed in a self-consistent way and its equilibrium conditions are characterized assuming continuous pumping of t...
The aim of t his project is the construction of efficient high fidelity schemes for systems of PDEs that contain shock waves. We advocate here the Discontinuous collocation method, i.e. multi-domain spe method with stable and conservative penalty interface conditions. In this work. the previously developed methodology is generalized to inhomogeneous grid to simulate the two dimensional superson...
BACKGROUND The purpose of this study was to assess the risk of intraocular contamination caused by intraocular lens (IOL) insertion with injectors by observing the dynamics of an ophthalmic viscosurgical device (OVD). METHODS Each type of injector was equipped with a colored OVD and IOL, and a 2 mm length from the tip of the cartridge was replaced with a colored OVD. The various combinations ...
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