National Taiwan University

Chin-Chou Chu

Chien-Cheng Chang

Fan-Gang Tseng

Chien-Fu Chen

Chien-Chung Chang

Po-Hsiang Tsui

Shuo Feng Chiu

Yao Hung Huang

Jen-Jen Lin

Chun Chieh Wang

Chun-Fei Kung

Sheng Der Chao

Ssu Che Wang

The present disclosure provides a wave energy gathering and enhancing device disposed in a setting area of the sea-bed. A seawater wave approaches the wave energy gathering and enhancing device with a wave vector. The wave energy gathering and enhancing device comprises a plurality of structures. The plurality of structures are arranged below the sea surface in a two-dimensional symmetric discrete group. Each of the structures has a top surface and the top surface is located below the sea surface with a predetermined depth. A lattice with a definite lattice constant is formed by the plurality of structures. The lattice plane formed by the structures and the wave vector of the seawater wave form an angle. The structures enhance the amplitude of the seawater wave when the seawater wave interacts with and passes through the structures.

Wave energy gathering and enhancing device utilizing linearized shallow water wave theory

An ultrasonic imaging technique for differentiating the distribution of scatterers within a tissue comprises a correcting and an imaging procedure. The correcting procedure includes steps of obtaining ultrasonic backscattered signals from a standard phantom, compensating and demodulating the signals into an envelope image, calculating the parameter m and, selecting a window to calculate parameter min each location of the envelope image and, if&#x2260;then increase the size of the window to repeat the steps above, and when=, it is the optimal size of the window. The imaging procedure includes steps of obtaining ultrasonic backscattered signals from a target tissue, compensating and demodulating the signals into an envelope image, calculating min each location to form a mmatrix, and presenting the matrix by utilizing pseudocolors.

Ultrasonic imaging technique for differentiating the distribution of scatterers within a tissue

A liquid transportation device includes a working board, a working liquid, a liquid channel and a cover board, wherein the liquid channel is formed on a top surface of the working board, the covering board is fully covered the liquid channel, the liquid channel composed of a material substantially tending to the liquid, and the covering board is composed of a material substantially phobic to the liquid. The working liquid flows within the liquid channel in guidance of the deviation of surface tension between the liquid channel to the working liquid, and the covering board to the working liquid, so that the working liquid is transported within the liquid channel without any external power.

Surface-tension-guided liquid transportation device

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Taipei, Taiwan

Chin-Chou Chu