In this study, we showed that FSL® phototherapy can be an effective and safe treatment option in AD.

AbslraeL @er the years, lidar probing has k e n widely used to identify doud properties (e.g. thickness and ancentration) in an atmosphere. In the current paper, we mamine the inverse problem of reconstructing the doud mncentralion from lidar signal. The problem that is considered is a hyperbolic system of fint-order partial differential equations in a semi-infinite medium. The issues of existence, uniqueness and mnlinuous dependence on initial data of the inverse problem are addressed.

A highly sensitive InGaAs/InP heterojunction phototransistor (HPT) has been proposed and characterized using front-side optical injection. We also present optimized epitaxial structures to increase the optical gain and discuss the device operation mechanism and experimental results. The experimental results show that our device has an optical responsivity of 122.5 A/W, which is significantly higher than that of a conventional PIN photodetector with the same light absorbing area. This optical responsivity is extremely high and seems to exceed that of the APD. This high value of responsivity originates from the optical gain-enhanced device structure. The typical optical gain is approximately 188, which is much higher than that of any HPTs that have been reported. This means HPTs are 188 times more sensitive than PIN photodetectors. The proposed device can be easily fabricated using conventional HBT processing without additional steps. With these InGaAs/InP HPTs, we can construct a highly sensitive near-IR imaging system to detect very weak optical signals.

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-It is necessary to accurately predict converter losses for optimized design of a high-power DC-DC converter. The losses of switching devices and inductor among the elements of the converter take significantly greater proportion. The current ripple will be determined by the size of the inductance and this inductance value varies depending on the DC amount of inductor current. As the inductance changes according to load current, the change influences not only the inductor loss itself but also the total converter loss. In this paper, for more accurate design of a bi-directional DC-DC converter for 30kW-class energy storage system, more accurate computational model is proposed considering inductance variation according to the load current change. The inductance changes using variable magnetic cores are verified and converter efficiency is tested through simulations and experiments.