Search

This paper presents an unmanned underwater vehicle (UUV) with high maneuverability to be controlled in strong tidal currents. A radio buoy is connected to the UUV with an intermediate cable, and a wireless RF modem is installed to communicate with a support vessel. This paper presents the design and development of the UUV and the buoy systems. The vehicle equips with two main thrusters and four vertical/ horizontal tunnel thrusters in the middle of the vehicle. This paper discusses the hydrodynamic characteristics of the multiple thrusters, and strategies to maneuver the UUV with multiple thruster. Finally this paper presents effectiveness of the UUV with the buoy in conducting a simulated object installation.

Known chlorine atom concentrations were prepared in a discharge flow system and used to etch the (100) face of a gallium arsenide single crystal. The etch rate was monitored by mass spectrometry, laser interferometry, and surface proftlometry. In the temperature range from 90 to 160°C the reaction can be described by the rate law $$Etch rate = kP_{Cl} $$ where $$k = 9 \times 10^{(6 \pm 0.5)} \mu m min^{ - 1} Torr^{ - 1} e^{ - 9 \pm 1)kcal/RT} $$

14.1” qFHD quarter Full High Definition Transparent Active Matrix Organic Light Emitting Display AM OLED was developed with the well known and reliable technology based on LTPS Low Temperature Poly Silicon backplane. The key concept of the transparent AM OLED display lies on the seethrough window on each pixel so that the objects across the device can be seen. In the design of pixel structure, functional separation of light emitting area and seethrough area was realized on the different regions. The features of transparency and transmitted image quality were investigated and optimized in the design of the pixel structure. Up to 38% transparency of the prototype panel was accomplished with the high transparent cathode material which transmittance was more than 75%. LTPS based Active Matrix and Top emission OLED structure was used for the prototype to provide wide range of color expression, more than 100% of color gamut.