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The CW phased-array antenna for the EBWH/CD has been developed in QUEST. The measured fields were in excellent agreement with those evaluated by the Kirchhoff integral. The thermal load and stress were analyzed. The phase array has been fast scanned to control the incident polarization and angle.
This paper reports the design, fabrication and evaluation of piezoresistive effect of the top-down fabricated p-type <110> Si nanowires (SiNWs). The SiNWs with the length of 2 ??m, thickness of 35 nm and width ranges from 35 nm to 490 nm have been fabricated by electron beam (EB) direct writing and reactive ion etching (RIE). The impurity concentration of the SiNWs is 2 ?? 1018 cm-3, obtained...
The phased-array antenna has been designed for steady-state electron Bernstein wave heating and current drive at 8.2 GHz in the QUEST tokamak. The prototype antenna had rather large side-lobe components. In the new designed antenna the side-lobe components were reduced by modification of the antenna structure. For the steady-state operation, forced water-cooling and thermal stress were analyzed for...
The impact of extensively usage visual display terminal (VDT) on automatic nervous system are observed and analyzed based on physiological information, i.e., electroencephalogram (EEG), heart rate variability (HRV) and thermograph. Two types of experiment which have different intermittent schedule were conducted using the Kraepelin psycho diagnostic test. The purpose is to determine the given task...
For femoral fracture reduction, we have developed a surgical robotic system. Indirect traction is employed in our system. Indirect traction in fracture reduction is a generally used surgical method for preventing complications such as bone splits caused by high stress on bones. For traction, a patientpsilas foot is gripped by a jig and pulled to the distal side. Indirect traction has the advantage...
In this study, we have simulated the piezoresistance effect in bulk silicon and silicon nanowires (SiNWs) based on the first-principle calculations of model structures. The band structure changes according to stress was observed o the SiNWs model. The piezoresistance coefficients with respect to cross-sectional area of 50 nm SiNW together with SEM image of the model were presented.
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