Korea Advanced Institute of Science and Technology

Hyundai Motor Company

Korea Atomic Energy Research Institute

Kia Motors Corporation

Korea Electric Power Corporation

Korea Electrotechnology Research Institute

Taek-Soo Kim

Bo Ki Hong

Byeong-Heon Jeong

Sanwi Kim

Yonghee Kim

Jae-Han Kim

Do-Young Jeong

Hyounmin Park

Lim Lee

Sumin Kang

Jong Kil Oh

Ji Hun Kim

Kwang-Hoon Ko

Yong-Ho Cha

Jin-Bong Kim

Yong-Joo Kim

Myong-Soo Park

Don-Ha Hwang

Jae-Bum Pyo

Seong Yong Oh

Kyung-Rim Jang

The present invention relates to a soft robot using diamagnetic levitation. Such a soft robot using diamagnetic levitation is formed of a diamagnetic material to levitate on the ground on which a magnetic field is formed, and moves in a direction toward a predetermined point of a head part when the predetermined point of the head part is heated, and may thus move and change its direction in a state in which it is not in contact with the ground.

Soft robot using diamagnetic levitation

The present disclosure relates to a method for separating a carbon isotope and a method for concentrating a carbon isotope using the same, the method for separating a carbon isotope including: cooling a formaldehyde gas to a temperature of from 190K to 250K; and obtaining a mixed gas and residual formaldehyde by photodissociating the cooled formaldehyde gas, the mixed gas including carbon dioxide containing a carbon isotope and hydrogen.

Method for separating carbon isotope and method for concentrating carbon isotope using the same

Provided is a selective transfer method including depositing a thin film on a substrate; patterning the thin film using a laser or a tool to acquire a thin film of a target pattern; masking the thin film of the target pattern; selectively controlling a surface wettability through surface treatment of the masked thin film; delaminating the thin film of the target pattern by dipping a surface of the thin film with a wettability changed in response to a completion of the selective surface treatment into a liquid material and by applying a crack opening force capable of delaminating an interface between the thin film and the substrate; and immersing a target substrate into the liquid material when the thin film of the target pattern is floating in the liquid material and then scoop-up transferring the floating thin film of the target pattern.

Method for selective delamination and transfer of thin film using liquid platform

A process for isolatingO from water and a process for concentratingO by using the same are provided. The process for isolatingO from water includes: mixingO-containing water with formaldehyde to prepare an aqueous formaldehyde solution; heating the aqueous formaldehyde solution to generate a vapor mixture containing water vapor and formaldehyde vapor; and obtainingO-depleted water, residual formaldehyde, and a gas mixture containing hydrogen andO-enriched carbon monoxide, through photodissociating the vapor mixture. AnO-enriched water production process includes: an operation of adding hydrogen to the gas mixture to induce a catalytic methanation reaction to synthesize methane (CH) andO-enriched water (HO) through methanation, the operation being carried out following the process for isolatingO from water.

Process for isolating 170 isotope from water and process for concentrating 170 isotope using the same

Disclosed are a process for separating an electrode for membrane-electrode assemblies of fuel cells from the decal transfer film and an apparatus for separating the electrode. In particular, during the electrode separating process, only an electrode is separated from the decal transfer film on which the electrode is coated, without any damage, by a freezing method for freezing the specimen on the deionized water surface, and thus, wasting the expensive MEA is prevented. Thus, mechanical properties of the pristine electrode can be rapidly quantified in advance, and therefore, long term durability evaluation period during developing MEA having excellent durability is substantially reduced.

Process for separating electrode for membrane-electrode assembly of fuel cell and apparatus therefor

A method for coating a thin film in a rolling manner and a thin film coating apparatus are provided. The method includes: floating a thin film material on a liquefied material; rolling a cylindrical substrate after contacting the cylindrical substrate with the thin film material; and coating the thin film material on a surface of the cylindrical substrate by using an attraction force between the surface of the cylindrical substrate and the thin film material.

Method for coating thin film in rolling manner and apparatus for coating thin film by using the same

An apparatus for measuring micro-cracks in a membrane electrode assembly includes a resistance measurement unit to measure variation in electrical resistance of the membrane electrode assembly while tensioning the membrane electrode assembly in a state in which power is applied to an upper catalyst layer while a lower catalyst layer is insulated, an image capture unit to capture an image of micro-cracks in the upper catalyst layer while the membrane electrode assembly is being tensioned, and a controller to detect, in real time, variation in electrical resistance measured by the resistance measurement unit, corresponding to the image of micro-cracks captured by the image capture unit, and to interpret the size of the micro-cracks generated in the membrane electrode assembly based on the detected variation in electrical resistance.

Apparatus for measuring micro-cracks in a membrane electrode assembly and method for predicting generation of micro-cracks in the same

A method of detecting a partial discharge signals occurring at an insulator, using a Frequency Spectrum Analyzer (FSA) with a monitor screen. The method including the steps of setting a horizontal axis of the monitor screen as a time axis and a vertical axis as an axis representing a voltage magnitude; receiving a power frequency signal having phase angle and carrying the partial discharge signals derived from the insulator being tested, to display the magnitudes of the partial discharge signals based on the time axis; detecting each of the maximum value of the partial discharge signals being displayed by the receiving step, to cause them to be evaluated into coordinate values of the horizontal axis and the vertical axis discriminating each of the phase angles of the power frequency signal based on the coordinate value of the horizontal axis detected by the detecting step, and evaluating each of the magnitudes of the partial discharge signals positioned at respective phase angles of the power frequency signal based on the coordinate value of the vertical axis; and overlapping each the phase angle of the partial discharge signals positioned at the respective phase angles evaluated by the discriminating step with each other according to corresponding phase angles, and comparing them relative to each other, such that the magnitude and number of the partial discharge signals appearing at the respective phase angles of the power frequency signal can be evaluated.

Method of detecting partial discharge using frequency spectrum analyzer

Growing community of inventors

Daejeon, South Korea

Taek-Soo Kim