Sk Innovation Co., Ltd.

Lg Chem, Ltd

Sk Geo Centric Co., Ltd.

Lg Energy Solution, Ltd.

Korea Hydro Nuclear Power Co., Ltd.

Korea Basic Science Institute

Sk Global Chemical Co., Ltd.

Ji Hoon Lee

Sang Il Lee

Young Eun Cheon

Jung Hoon Lee

Hyung Kyun Yu

Su Taek Jung

Soo Ji Hwang

Seok Jin Kim

Min Hyeong Kang

Tae Won Hwang

Yeon Ho Kim

Sang Hyun Koo

Ho Yeon Yang

Jin Soo Choi

Yong Chan Kim

Sang Hun Kim

Yong Su Choi

Hee Soo Kim

Sang Suk Jung

Wook Jang

Min Ji Lee

Ki Hoon Paeng

Dae Hyun Choo

Hyung Seok Han

Chang Soon Lee

Cho Long Kim

Dong Min Yun

Kyung Jong Oh

Hyo Kyun Chung

Dae Sung Song

Se Jin Jung

Gun Hwa Kim

Hee Du Lee

Ki Bang Sung

Young Bu Choi

Woo Cheul Jeong

Jung Geun Jang

Koon Soon Kim

Da Rong Kim

Hang Rae Cho

The present invention relates to a composition comprising a CYP4A-inhibiting compound as an active ingredient for preventing or treating metabolic diseases, more specifically to a composition comprising the compound expressed by chemical formula 1 of the present invention or pharmaceutically acceptable salt thereof as an active ingredient for preventing, ameliorating or treating metabolic diseases.

Composition comprising CYP4A-inhibiting compound as active ingredient for preventing or treating metabolic diseases

Disclosed is a method for providing improved hydrogenation activity by pretreating a catalyst in a three-step manner before selective hydrogenation of unsaturated hydrocarbons in an aromatic fraction in the presence of an oxide-type bimetallic (particularly nickel-molybdenum) supported catalyst.

Method of improving selective hydrogenation of unsaturated hydrocarbon in aromatic fraction through catalyst pretreatment

The present invention provides an apparatus for inspecting a welding state in a welded portion for an electronic or mechanical coupling in a lithium secondary battery, the apparatus including: a measuring unit configured to obtain data for deriving a resistance value of the welded portion by allowing a resistance measuring probe to contact the welded portion; and a controller configured to communicate with the measuring unit, determine the resistance value of the welded portion by receiving the data obtained from the measuring unit, and determine whether a weak welding was performed by comparing the determined resistance value with a threshold resistance value, in which the measuring unit is configured to allow the resistance measuring probe to contact one end and the other end of the welded portion.

Welding quality inspection device

A method for inspecting a welding defect of the present invention includes: a threshold resistance setting step (S) of measuring a resistance of a welded portion of a sample group and deriving a threshold resistance value which becomes an evaluation standard of a weak welding; a resistance measuring step (S) of measuring a resistance value of a welded portion to be inspected; and a step (S) of determining as a weak welding if the resistance value measured in the resistance measuring step exceeds the threshold resistance value, wherein the threshold resistance setting step (S) and the resistance measuring step (S) include measuring a resistance using a microresistance measuring instrument having a resolution of nanoohm to microohm units. The welding defect inspection method of the present invention shows excellent detection power for the welding defect by a weak welding.

Welding failure inspection method

Disclosed is a method for producing hydrogen, carbon, and ethylene from a methane-containing feedstock even without recycling of unreacted methane by providing a single process or system in which a methane-containing feedstock is subjected to two methane conversion steps. The method includes a first conversion step of producing hydrogen and carbonaceous materials and a second conversion step of producing acetylene from unreacted methane and hydrogen discharged from the first conversion step while maintaining a good methane conversion and suppressing coke formation, followed by separating and recovering ethylene and hydrogen produced through selective hydrogenation of acetylene.

Process for producing hydrogen, carbon, and ethylene from methane-containing feedstock

Disclosed are a process and system that are capable of performing selective hydrogenation on aromatic fractions by configuring a catalyst bed through staged loading of a plurality of hydrogenation catalysts with different catalytic properties, or configuring a catalyst system in which a plurality of hydrogenation catalysts are arranged using a plurality of reactors in such a way as to be equivalent with the staged loading, and as a result, are capable of suppressing aromatic loss while improving the selective removal of unsaturated hydrocarbons in the aromatic fraction and durability compared to the case of using a single catalyst.

Process for reducing unsaturated hydrocarbons in aromatic fraction through selective hydrogenation

Disclosed are a catalyst and a preparation method therefor, the catalyst being able to maintain a high production yield of C8 aromatic hydrocarbons in the process of converting a feedstock containing alkyl aromatics to C8 aromatic hydrocarbons such as mixed xylene through disproportionation/transalkylation/dealkylation while reducing a content of ethylbenzene in the products.

Catalyst for producing C8 aromatic hydrocarbon having reduced ethylbenzene content and preparation method therefor

Disclosed are a bifunctional catalyst and a preparation method therefor, the bifunctional catalyst being suitable to produce high-value aromatic hydrocarbons by subjecting alkylaromatic hydrocarbons to a disproportionation/transalkylation/dealkylation reaction while suppressing aromatic loss or subjecting C8 aromatic hydrocarbons to an isomerization reaction while suppressing xylene loss.

Catalyst for converting alkylaromatic hydrocarbon and preparation method thereof

A battery cell includes an electrode assembly and a battery case. The electrode assembly includes a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The battery case includes an upper case and a lower case, at least one of the upper case and the lower case being provided with a receiving part, in which the electrode assembly is mounted. One end of each of electrode tabs extending from electrode plates of the electrode assembly is coupled to a corresponding end of an electrode lead, which protrudes outward from the battery case. The electrode lead is provided with at least one notch part configured to rupture in response to expansion deformation of the battery case when the pressure in the battery cell increases to achieve the electrical cutoff of the battery.

Pouch-typed battery cell comprising electrode lead having current breaking function

The present disclosure provides a process for effectively separating and removing by-products (light gas, C5-C6 hydrocarbon oil fraction, polyethylbenzene) contained in a substantial amount in addition to ethylbenzene as a target compound in an alkylation reaction product of a fluidized catalytic cracking off-gas to prepare ethylbenzene having high purity, and process economical efficiency may be secured by utilizing the polyethylbenzene as an absorbent or gasoline fraction, without requiring a transalkylation reaction for further producing ethylbenzene from polyethylbenzene.

Method for recovering ethylbenzene from alkylation product of fluidized catalytic cracking off-gas and benzene

A secondary battery includes a pouch case provided with an accommodation part accommodating an electrode assembly and a gas pocket part collecting a gas generated in the accommodation part by the electrode assembly, and a clamp device coupled between the accommodation part and the gas pocket part to seal a gap between the accommodation part and the gas pocket part.

Secondary battery having a clamping device and method for manufacturing same

A waste liquid treatment apparatus with enhanced treatment capacity for a pre-treatment facility of a liquid radwaste treatment system for a nuclear power plant. The waste liquid treatment apparatus includes: a water tank into which a waste liquid is introduced and from which filtered permeated water is discharged; a waste liquid introduction section through which waste liquid is introduced into the water tank; submerged membranes annularly disposed and spaced apart from each other for filtering foreign substances from the waste liquid; a permeated water suctioning section suctioning the filtered water of the waste liquid and discharging the filtered water outside the water tank; an air supplying section supplying compressed air to the submerged membranes to remove foreign substances; and a porous support plate supporting the submerged membranes.

Device for treatment of waste liquid

Disclosed is a method and device for simply and safely preparing, using a direct synthesis process at room temperature, a radioactive methyl iodine (CHI) tracer for use in evaluating the ability of impregnated activated carbon to adsorb radioactive organic iodine according to ASTM D 3803 (Standard Test Method for Nuclear-Grade Activated Carbon), in which the tracer can be directly synthesized by mixing radioactive sodium iodide (NaI) with methyl iodine (CHI) at room temperature under reduced pressure, thus shortening excessive synthesis time and decreasing the probability of radiation exposure due to leakage of volatile material during the distillation.

Method and device for synthesizing radioactive methyl iodide tracer

Growing community of inventors

Daejeon, South Korea

Ji Hoon Lee