Abstract: The present invention relates to a method of tunning wettability of titanium dioxide layers against water by nanostructuring the titanium dioxide layers to increase a hydrophilicity of the titanium dioxide layers, and also coating the nanostructured titanium dioxide layers with silane layers to increase a hydrophobicity of the titanium dioxide layers. The method of tunning wettability of titanium dioxide layers against water according to the present invention comprises: (a) step of forming titanium dioxide layer on a substrate; (b) step of forming silica particle layers on the upper part of the titanium dioxide layer; (c) step of etching a surface of the laminate prepared in step (b); and (d) step of removing the silica particle layer etched and remained in the step (c).

Abstract: Disclosed is a device for bonding a flexible PCB (Printed Circuit Board) to a camera module, the device according to an exemplary embodiment of the present disclosure comprising a thermo-compression unit configured to bond the camera module to the flexible PCB using an conductive film by applying heat and pressure to the conductive film between the camera module and the flexible PCB, an ultrasonic wave bonding unit configured to directly transmit ultrasonic wave vibration energy to the camera module to remove an oxide film on connection particles intrinsically formed inside the conducive film, and a controller configured to activate the ultrasonic wave bonding unit when a temperature of the conductive film rises to a predetermined temperature.

Abstract: A parallel imaging (PI) method has been frequently used as a method for shortening an image acquisition time in the MRI field. The PI technique is a method for acquiring data using multi-channel coils, that is, several coils, when acquiring the data in MRI. According to this technique, data, the amount of which is smaller than that when the data is obtained using only one coil, is acquired, and then an image is obtained using coil information. According to an embodiment, a new image reconstruction method is proposed which adopts an expectation maximization (EM) technique that is different from the existing GRAPPA or SENSE technique when an image is obtained using PI data acquired through the radial trajectory.