A solid particle injection system is developed for KSTAR. The system has a compact size, compatibility with a strong magnetic field and high vacuum environment, and the capability to inject a small amount of solid particles with a narrow injection angle. The target flight-distance of 10 cm has been achieved with a particle loss rate of less than 10%. Solid impurity particles such as tungsten an...

Siij,?May I point out, to any who feel reluctant to use percaine on account of the waste of time entailed in keeping the patient in the prone position for ten minutes after injection, that the prone position is now considered unnecessary. I now give percaine, the usual hypoboric solution, with the patient sitting up. Depending upon the height of anaesthesia required, the patient is allowed to s...

We investigate numerically the ability of three models (jet, structured outflow, energy injection) to accommodate the optical light-curve breaks observed in 10 GRB afterglows (980519, 990123, 990510, 991216, 000301c, 000926, 010222, 011211, 020813, and 030226), as well as the relative intensities of the radio, optical, and X-ray emissions of these afterglows. We find that the jet and structured...

We introduce a theoretical background for the photonic quantum ring laser facilitating the trap-induced gain-equalized resonances and the photonic quantum corral effect. The emission spectrum characteristics of the three dimensional (3D) toroidal cavity PQR device are discussed with experimental result including its angle dependent behavior. We also present the linewidth narrowing of the 3D Ray...

Abstract The increasing demands for reducing fuel consumption and emissions in contemporary technology solutions lead to the use of more sensors, actuators, control applications. With this engine complexity, feedback design is complex due coupling between inputs combustion parameters. To be able controller systematically, model predictive (MPC) comes scope because its advantages multi-input mul...

This study investigated the effects of high exhaust gas recirculation (EGR) rates on dimethyl ether (DME) fuel combustion performance, exhaust emissions and particle emission characteristics in a small direct injection diesel engine under various injection timings. To examine the effect of EGR and injection timings, the experiment was performed under high EGR rates (0%, 30%, 50%) and injection ...

Head direction cells encode an animal's heading in the horizontal plane. However, it is not clear why the directionality of a cell's mean firing rate differs for clockwise, compared with counterclockwise, head turns (this difference is known as the "separation angle") in anterior thalamus. Here we investigated in freely behaving rats whether intrinsic neuronal firing properties are linked to th...

A cost reduced method of producing injection molding tools is reported and demonstrated for the fabrication of optical microlens arrays. A standard computer-numerical-control (CNC) milling machine was used to make a rough mold in steel. Surface treatment of the steel mold by spray coating with photoresist is used to smooth the mold surface providing good optical quality. The tool and process ar...

This paper presents a new control topology to enable effective integration of voltage source converters (VSCs) in weak grids. The controller has two main parts. The first part is a linear power-damping and synchronizing controller which automatically synchronizes a VSC to a grid by providing damping and synchronizing power components, and enables effective full power injection even under very w...

purpose: to compare anterior segment and ocular biometric parameters of unaffected fellow eyes of patients with a previous attack of acute angle closure (aac), primary angle closure suspect (pacs) eyes, and normal eyes; and to assess the risk of developing aac in pacs. methods: in this prospective comparative observational case series, 16 unaffected fellow eyes of patients with a previous attac...