Abstract: In a device for evaluating torsional structural performance of girder according to an embodiment of the present disclosure, a guide unit of a support member formed in a shape of an arc having its center that matches a shear center of the girder rotatably supports a rotating member, so that the shear center of the girder matches a center of torsion during clockwise or counterclockwise rotation of the rotating member, thereby measuring an accurate angle of twist and preventing an incident in which the rotating member escapes due to separation of a component by a rotational force.

Abstract: Provided is a method of diagnosing the degradation of a lithium secondary battery in a non-destructive manner without disassembling the battery, which includes: obtaining, from X-ray diffraction (XRD) data obtained during first charging of the lithium secondary battery, a first graph showing the change of the c-axis d-spacing value of the layered positive electrode active material according to the number of moles of lithium ions deintercalated from the layered positive electrode active material during the charging; obtaining, from XRD data obtained during second charging of the lithium secondary battery, a second graph showing the change of the c-axis d-spacing value of the layered positive electrode active material according to the number of moles of lithium ions deintercalated from the layered positive electrode active material during the charging; and classifying a cause of degradation of the secondary battery by comparing the first graph and the second graph.

Abstract: A cathode active material for a lithium secondary battery includes a lithium-transition metal oxide particle containing phosphorus introduced into the particle, and a coating formed on at least a portion of a surface of the lithium-transition metal oxide particle. The coating includes a phosphorus-containing compound. A content of phosphorus introduced into the lithium-transition metal oxide particle is in a range from 15 wt % to 30 wt % based on a sum of a weight of phosphorus introduced into the lithium-transition metal oxide particle and a weight of phosphorus contained in the coating.

Abstract: Provided is a liquid hydrogen storage system including: a hydrogen storage tank coupled to a vessel hull and configured to store liquid hydrogen; a catalyst for conversion of para hydrogen in the liquid hydrogen into ortho hydrogen; and a catalyst holder disposed at an upper portion of the hydrogen storage tank and configured to hold the catalyst. A catalytic reaction to convert the para hydrogen into the ortho hydrogen occurs as the temperature of the upper portion of the hydrogen storage tank increases.

Abstract: A button lighting module is provided including: a light guide plate which has a button through-hole formed in a thickness direction to allow a button device configured to input a command to pass therethrough and has a light refractor provided around the button through-hole to refract a light path upward; and a light source which is configured to radiate light so that the light is incident on the light guide plate through an outer peripheral side surface of the light guide plate.

Abstract: A button lighting module is provided including: a light guide plate which has a button through-hole formed in a thickness direction to allow a button device configured to input a command to pass therethrough and has a light refractor provided around the button through-hole to refract a light path upward; and a light source which is configured to radiate light so that the light is incident on the light guide plate through an outer peripheral side surface of the light guide plate.

Abstract: The present disclosure relates to a chalcogenide glass composition and a lens including a molded article of the same, which are capable of guaranteeing excellent refractive index, Vickers hardness, and price competitiveness without including an element such as arsenic harmful to the human body.

Abstract: An embodiment relates to a surface emitting laser device and a light emitting device including the same. The surface emitting laser device according to the embodiment includes: a first emitter having a first aperture and a first insulating region; a second emitter having a second aperture and a second insulating region and disposed adjacent to the first emitter; a third emitter having a third aperture and a third insulating region and disposed adjacent to the first emitter and the second emitter; and a first trench region disposed between the first emitter and the third emitter. The first trench region is disposed inside a virtual triangle connecting a center of the first aperture of the first emitter, a center of the second aperture of the second emitter, and a center of the third aperture of the third emitter.

Abstract: A method for reducing waste by recovering transition metal of a lithium secondary battery of the present invention includes preparing a cathode active material from a cathode of the lithium secondary battery, producing a first leachate by treating the cathode active material with a first acidic solution containing a reducing agent in an amount smaller than an amount corresponding to a reaction equivalent of the cathode active material, and producing a second leachate by treating the remaining cathode active material, which excludes a fraction contained in the first leachate, with a second acidic solution containing a reducing agent. Accordingly, extraction rate of manganese and purity of cobalt may be improved.

Abstract: The present invention relates to a novel isoquinoline derivative, a preparing method thereof, and a pharmaceutical composition for preventing or treating autophagy related diseases containing the same as an active ingredient. The novel isoquinoline furanone derivative according to the present invention is capable of regulating autophagy activity, and thus, by using this derivative as an active ingredient, there is a useful effect that can be used as a pharmaceutical composition for preventing or treating autophagy-related diseases such as neurodegenerative diseases, cancer, metabolic diseases, inflammatory diseases or melanogenesis-related diseases, a health functional food composition for ameliorating thereof, or a cosmetic composition with a whitening function.

Abstract: Disclosed herein is a photoresist composition comprising a first polymer comprising an acid labile group; a photoacid generator; and an acid diffusion control agent that comprises a tri-alkyl amide compound having a lipophilicity (log P) value that is greater than 11.

Abstract: The present disclosure relates to a global positioning system for compensating for relative positioning errors between vehicles. A follower vehicle of the global positioning system includes a correction message receiver configured to receive correction message including velocity information about a leader vehicle and GNSS raw measurements of the leader vehicle from the leader vehicle, a relative positioning result calculator configured to calculate a relative positioning result between the leader vehicle and the follower vehicle based on the GNSS measurements of the leader vehicle, and a relative positioning result corrector configured to calculate a corrected relative positioning result through an operation based on the calculated relative positioning result and the velocity information about the leader vehicle.

Abstract: The present application relates to a method of producing natural nitrite, the method including preparing an extract from a plant containing nitrate, activating nitrate reductase within the plant extract, and inactivating the nitrate reductase. According to the method of producing the natural nitrite, nitrite may be produced in a high concentration from natural raw materials without inoculation of reducing bacteria.

Abstract: The present application relates to a natural coloring agent composition including a fermented plant product, wherein the composition includes nitrite in a concentration of 700 ppm or more and includes free sugar in a concentration of 1,000 ppm or less, and the free sugar includes lactose. The natural coloring agent composition may be prepared from natural raw materials to contain nitrite in a high concentration without inoculation of reducing bacteria, and may have an excellent color development effect when applied to meat products in place of synthetic nitrite.

Abstract: An apparatus for cooling a coil of a motor includes a cooling cap unit covering an end coil of a stator coil bundle, coupled to a stator, and having, formed therein, a flow path through which fluid is able to flow; an inlet flow path unit formed at one part of the cooling cap unit, and forming an inlet path through which fluid is introduced into the cooling cap unit; an outlet flow path unit formed at the other part of the cooling cap unit, and forming an outlet path through which fluid is discharged to an outside of the cooling cap unit; and a cap fixing unit fixing the cooling cap unit to the stator or a motor housing.

Abstract: Provided is a method for isolation and expansion of dermal papilla cells, and more particularly, to a method of isolating dermal papilla cells from hair bulbs, isolated from scalp tissue, by chopping, and then expanding the isolated dermal papilla cells by passaging. The expanded dermal papilla cells may play an important role in hair growth, and thus the present invention may be used in various industrial fields, including the medical field and the cosmetic field.

Abstract: A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a plurality of a lithium-transition metal composite oxide particle having a shape of a secondary particle in which a plurality of primary particles are aggregated. The lithium-transition metal composite oxide particle includes a lithium-molybdenum-containing portion having a hexagonal close-packed structure formed between the primary particles.

Abstract: Provided is a slurry composition for a metal film for a contact process. A polishing slurry composition includes abrasive particles, a compound including one or more functional groups capable of hydrogen bonding, a nonionic polymer including one or more hydrophilic functional groups in a repeating unit structure, and an oxidizer.

Abstract: The present disclosure relates to a process gas supplying unit configured to uniformly supply a process gas to each region of a substrate when a substrate is treated using plasma, and a substrate treating apparatus including the same. According to the present disclosure, the effect of improving the treating efficiency of the substrate may be obtained by uniformly supplying the process gas.

Abstract: An intermediate useful for the synthesis of an SGLT inhibitor and a method for preparing an SGLT inhibitor are provided. By employing an intermediate having Chemical Formula 5, the difficulty of purification with existing processes can be solved, the quality requirements for related substances can be achieved with only one purification step, and the quality control problem in each step can be solved by performing several steps in situ. A method for synthesizing a compound of Chemical Formula 1 by using a compound of Chemical Formula 5 enables purification in an earlier step, thereby solving the problems of existing synthesis processes, in which the quality requirements for related substances were difficult to control step-by-step due to a continuous process, thereby minimizing the amount of related substances in the final product. In addition, the yield of a diphenylmethane derivative according to Chemical Formula 1 is increased.