Korea Advanced Institute of Science and Technology

Yonsei University

Donghee Industrial Co., Ltd.

Chonnam National University

Korea Institute of Materials Science

Korea Western Power Co., Ltd.

Korea East-west Power Co., Ltd.

Korea South-east Power Co., Ltd.

Arstroma Co., Ltd.

Korea Elastic Power Corporation

Kyung Min Kim

Sung Hyon Myaeng

Yu Chul Jung

Dong Hwan Kim

Beom Seok Kim

Woong Hee Jeong

Hyun Jae Kim

Hyung Hee Cho

Sung Yong Park

Jun Su Park

Jun Han Kim

Gwan Shig Kim

Joong Won Lee

Jung Bin Lee

Ky Yeong Shin

Seon Ho Kim

Chil Woo Lee

Young Kuk Kim

Keun Chan Park

Yong Hwan Mo

Yong Seok Eom

Kwang Hyuck Lee

Ho Kyu Moon

Jung Hyeon Bae

Min Ji Pyo

Jung Goo Lee

Youn Kyoung Baek

Jin Hyuk Choi

The present invention relates to a method for producing a magnetic powder, including: preparing a precursor solution containing an iron precursor and a silica precursor; spraying the precursor solution to form iron/silica precursor droplets; drying the iron/silica precursor droplets to produce iron/silica precursor particles; and heat treating the iron/silica precursor particles to produce an iron oxide/silica composite powder in which iron oxide particles are embedded in a silica matrix. The present invention also relates to a magnetic powder produced by the method. The present invention may provide an iron oxide magnetic powder that does not use rare earth elements and a method for producing the same.

Iron oxide magnetic powder and manufacturing method therefor

A carbon dioxide (CO) separation membrane module performance evaluation system and device may include a simulated gas supply line configured to simulate a gas composition of boiler exhaust gas and supply the gas to a module unit part; the module unit part including a COseparation membrane module and configured to cause the gas to permeate through the COseparation membrane module and separately discharge permeated gas, to a permeation line, and separately discharge passed gas to a passage line; a discharge line configured to combine the gases and discharge the combined gas to the outside of the system; an analyzer part configured to collect each of the gas, analyze components thereof, and evaluate performance of the module; a refiner part to remove pollutants; a measurer part to measure a flow rate, a temperature, and a pressure; and a controller part to determine a state of the overall system.

System for evaluating performance of carbon dioxide separation membrane module and device therefor

The present invention relates to a gas turbine device using a supercritical fluid as a cooling fluid, the gas turbine device having a compressor for compressing air, a combustor for burning the air emitted from the compressor and fuel, and a turbine driven by the burned gas emitted from the combustor, wherein the gas turbine device includes cooling passages formed in the combustor and the turbine, along which the supercritical fluid as a cooling fluid flows to allow the combustor and the turbine to be cooled.

Gas turbine device using supercritical fluid as cooling fluid

Disclosed is a mobile application search method and system using a human activity knowledge database. The mobile application search system includes a user interface unit that provides an input environment to allow a user to input a user query and displays a mobile application search result related to the user query and a mobile application search engine that receives the user query from the user interface unit and searches for a mobile application related to the user query using an activity knowledge database in which a list of elements involved in achieving a plurality of goals that people desire in daily life is stored. The present invention increases the user's satisfaction by solving a word mismatching problem between a user query and a mobile application and improves mobile application search performance using a human activity knowledge database.

Mobile application search method and system using human activity knowledge database

Provided are a composition for an oxide semiconductor, a preparation method of the composition, a method for forming an oxide semiconductor thin film using the composition, and a method for forming an electronic device using the composition. The composition for an oxide semiconductor includes a compound for an oxide thin film and a stabilizer for adjusting conductivity of the oxide thin film. The stabilizer is included with the mole number of two to twelve times larger than the total mole number of the compound.

Composition for oxide thin film, preparation method of the composition, methods for forming the oxide thin film using the composition, and electronic device using the composition

An information retrieval system and method, and more particularly, a query and document topic category transition analysis system and method in which a query topic category of a query input from a user as an information retrieval keyword and a document topic category of a document which a user regards as relevant and selects from information retrieval results are classified to analyze transition between the query topic category and the document topic category, and a query expansion-based information retrieval system and method using query and document topic category transition analysis in which a query input from a user is expanded using a topic category transition analysis result, and corresponding information or documents are retrieved using the expanded query are provided.

Query and document topic category transition analysis system and method and query expansion-based information retrieval system and method

An accelerator pedal which has a housing; a foot plate coupled hingedly with the housing; a pedal arm; a carrier that penetrates the housing to connect the foot plate and the pedal arm; a compression spring to apply restoring force to the carrier; and a cover. The accelerator pedal has a plate coupling part that extends from a body of the housing. The foot plate has a first end is inserted into a coupling hole of the plate coupling part and is coupled hingedly with the housing. The compression spring is disposed between a lower side of the body of the housing and the carrier.

Accelerator pedal

The present invention related to an electronic organ type accelerator pedal. The electronic organ type accelerator pedal according to the present invention is capable of enhancing stability by the compression spring having a double structure and the carrier restricting the reverse rotation of the foot plate, while maintaining the benefit of the electronic accelerator pedal which is capable of ensuring space, improving an operation feeling and reducing driver's fatigue since the electronic accelerator pedal is not influenced by tension changes of the cable, and improving fuel efficiency by improving fuel consumption rate.

Electronic organ type accelerator pedal

Growing community of inventors

Busan, South Korea

Kyung Min Kim