Other

Korea Advanced Institute of Science and Technology

Pusan National University

Sang Youl Yoon

Myung Hwan Oh

Hyung Jin Sung

Jeung Sang Go

Kwang Duk Ahn

Dong Ky Shin

Hyun-jong Paik

Kyung Chun Kim

Cheon Su Kang

Sang Bong Kwon

Dewan Hasan Ahmed

Hyo Sup Lee

Byung Yong Yu

Hong Beom Park

Chong Hong Pyun

Tae Suk Park

There is provided a flow-resistance reducing laminate comprising: a substrate; and a flow-resistance reducing layer formed on the substrate, wherein the flow-resistance reducing layer has a surface portion facing a liquid, wherein a flow interface is formed between the liquid and the laminate upon relative movement between the liquid and the laminate, wherein the flow-resistance reducing layer is configured such that an air layer defines the flow interface.

Laminate for reducing flow resistance and manufacturing method therefor

Disclosed herein is a membraneless micro fuel cell. A cathode fluid and an anode fluid with a low Reynolds number flowing along a cathode channel and an anode channel are formed to have an interface with each other through a micro passageway and to be mixed by only diffusion so that the direct mixing of the cathode fluid and the anode fluid is prevented, making it possible to prevent reactants from being depleted at an electrode surface as well as to increase the efficiency of the fuel cell.

Membraneless micro fuel cell

Disclosed is a wire-type corona charger having a wire electrode disposed between ground electrode plates. The wire electrode is supported by the ends of the plurality of wire electrode supporters which are so arranged that their ends have a curvature equal to arcuately-shaped upper edge of the ground electrode plates. The curvature coincides with one of the curvatures of the horizontal axis and the vertical axis of the interior surface of the panel faceplate, while the charger is pivoted along the other curvature of the faceplate. The charger can uniformly charge the photoconductive layer and improves the charging efficiency.

Wire type corona charger for electrophotographical manufacturing of CRTs

A wing shaped security device for a golf bag is disclosed. Wing shaped opening/closing plates are installed inside the mouth of a golf bag, and a locking member shifts the wing shaped opening/closing plates to the horizontal position or to the vertical position to close or open the mouth of the golf bag. This actuation is done within symmetrically partitioned spaces which are formed by a separating wall. According to the present invention as described above, the structure is very simple, and the structure does not protrude to the outside of the golf bag, but is contained within the golf bag. Therefore the aesthetics is neat, and the golfer will not be harmed by carrying the golf bag. Further, the golf clubs are positively locked in the bag and therefore, the expensive golf clubs will be prevented from being lost or stolen. Thus it is a safe and convenient device.

Wing shaped security device for golf bag

Growing community of inventors

Busan, South Korea

Sang Youl Yoon