Abstract: The present disclosure relates to a plurality of host materials, organic electroluminescent compounds, and organic electroluminescent devices comprising the same. By comprising specific combinations of compounds according to the present disclosure as the plurality of host materials or by comprising a compound according to the present disclosure, it is possible to provide organic electroluminescent devices having improved lifespan characteristics compared to conventional organic electroluminescent devices.

Abstract: The present invention relates to a steel material for pressure vessels, offshore structures and the like and, more specifically, to a high-strength steel material having excellent low-temperature strain aging impact properties and a method for manufacturing same.

Abstract: A vehicular heat management system includes a refrigerant circulation line configured to generate hot energy or cold energy depending on a flow direction of a refrigerant, a heater core side coolant circulation line configured to transfer refrigerant heat generated in the refrigerant circulation line to a heater core to heat a passenger compartment, and a battery side coolant circulation line configured to receive coolant heat of the heater core side coolant circulation line via a coolant and then circulate the coolant through a battery to preheat the battery.

Abstract: A vehicular heat management system for individually cooling and heating a plurality of air conditioning regions of a vehicle includes a plurality of refrigerant circulation lines configured to cool and heat the air conditioning regions individually shared by the refrigerant circulation lines. The refrigerant circulation lines are provided with one or more air conditioning units for individually cooling and heating the respective air conditioning regions, and are configured to supply a refrigerant to the corresponding air conditioning units to individually cool and heat the air conditioning regions corresponding to the air conditioning units.

Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound can be a bipolar compound having a p-type moiety and an n-type moiety and has high energy level and proper energy bandgap for an emissive layer of the OLED. As the organic compound is applied into the emissive layer, the OLED can maximize its luminous properties as holes and electrons are recombined uniformly over the whole area in an emitting material layer (EML).

Abstract: An embodiment roof assembly for a vehicle includes a roof panel including a core, an upper skin attached to a top surface of the core, and a lower skin attached to a bottom surface of the core, a face sheet disposed above the roof panel, and a foam layer interposed between the roof panel and the face sheet.

Abstract: Disclosed is a radar antenna including an antenna body including a first plate and a second plate; a slot radiation part and a slot reception part formed in the first plate; a transmission port and a reception port formed in the second plate; and a waveguide formed by assembling the first and second plates. The slot radiation part includes a first slot radiation part configured to radiate a radio wave in a first detection range, and a second slot radiation part configured to radiate radio waves in a second detection range having a larger width and distance than the first detection range.

Abstract: Provided are an improved culture process for reducing unwanted culture byproducts when a target protein is produced in a glutamine-free cell culture medium, an improved culture process for producing a target protein in a glutamine-free cell culture medium, or an improved culture process for producing a target protein in a glutamine-free cell culture medium.

Abstract: Provided is a catalyst including: a support including titanium oxide; an active catalyst component including vanadium oxide; and a co-catalyst including antimony and cerium, in which the catalyst is included in a deNox reduction reaction that decomposes nitrogen oxide. The catalyst may improve sulfur poisoning tolerance characteristics while improving the deNox efficiency at a temperature in a wide range from low temperature to high temperature.

Abstract: An apparatus is for constructing a guide line for a road. The apparatus includes a painting apparatus part that stores a lane paint, is driven by receiving power, and supplies the lane paint. A nozzle part is installed in the painting apparatus part and sprays the lane paint supplied from the painting apparatus part on a road to form a guide line for a road including at least one of a directional mark and a lane. An adjustment part is installed in the painting apparatus part and adjusts at least one of a location and an interval of the lane paint sprayed from the nozzle part.

Abstract: The present invention provides a novel crystalline form of [R—(R*,R*)]-2-(4-fluorophenyl)-?,?-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrol-1-heptanoic acid hemi-calcium salt (atorvastatin hemi-calcium salt) of the following formula 1, which is known to be useful as a drug, a hydrate thereof and a preparation method thereof:

Abstract: Provided are an apparatus and a method of constructing a guide line for a road, and the apparatus includes a painting apparatus part that stores a lane paint, is driven by receiving power, and supplies the lane paint, a nozzle part that is installed in the painting apparatus part and sprays the lane paint supplied from the painting apparatus part on a road to form a guide line for a road including at least one of a directional mark and a lane, and an adjustment part that is installed in the painting apparatus part and adjusts at least one of a location and an interval of the lane paint sprayed from the nozzle part.

Abstract: A catalyst for selective catalytic reduction is described. Cerium (III) sulfate (cerous sulfate) is bound to a support. The catalyst also includes vanadium oxide and cerium oxide.

Abstract: The present invention provides a novel crystalline form of [R—(R*,R*)]-2-(4-fluorophenyl)-?,?-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrol-1-heptanoic acid hemi-calcium salt (atorvastatin hemi-calcium salt) of the following formula 1, which is known to be useful as a drug, a hydrate thereof and a preparation method thereof:

Abstract: A method of manufacturing stab-resistant fabric using water punching is provided. Aramid fabric and nonwoven aramid fabric are combined through water punching, thereby enhancing activities by ensuring flexibility and stab-resistance performance, and the method is an aramid composite fabric manufacturing method which performs water punching with pressure of 50 to 250 bar when the water punching is performed.

Abstract: A catalyst for selective catalytic reduction is described. Cerium (III) sulfate (cerous sulfate) is bound to a support. The catalyst also includes vanadium oxide and cerium oxide.

Abstract: A display apparatus which is connectable to at least one terminal apparatus is disclosed. The display apparatus includes a display, a communicator configured to receive home screen information from the terminal apparatus, and a controller configured to generate a home screen based on the received home screen information and control the display to display the generated home screen.

Abstract: A mobile terminal and an operating method thereof are provided. The operating method includes providing a transparent flexible display having a first display region at the front of the transparent flexible display and a second display region at the rear of the transparent flexible display; displaying an image in the first display region; determining whether a bend signal indicating that the transparent flexible display is bent is detected; and if the results of the determining indicate that a portion of the second display region has the same display direction as that of the first display region, displaying information regarding the image in the portion of the second display region having the same display direction as that of the first display region. Therefore, it is possible to display various information not only using a display region at the front of a display device but also using a display region at the rear of the display device.

Abstract: The present invention provides a novel crystalline form of [R—(R*,R*)]-2-(4-fluorophenyl)-?,?-dihydroxy-5-(1-mthylethyl)-3 -phenyl-4-[(phenylamino)carbonyl]-1H-pyrrol-1-heptanoic acid hemi-calcium salt (atorvastatin hemi-calcium salt) of the following formula 1, which is known to be useful as a drug, a hydrate thereof and a preparation method thereof:

Abstract: The present invention provides a novel crystalline form of [R-(R*,R*)]-2-(4-fluorophenyl)-?,?-dihydroxy-5-(1-mthylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrol-1-heptanoic acid hemi-calcium salt (atorvastatin hemi-calcium salt) of the following formula 1, which is known to be useful as a drug, a hydrate thereof and a preparation method thereof: