Abstract: A memory system includes a memory device including an interface circuit and a semiconductor memory, and a controller to generate a command for controlling the memory device. The interface circuit receives the command from the controller; determines whether the command is for the semiconductor memory or the interface circuit; and when it is determined that the command is for the interface circuit, performs a blocking operation to block transfer of the command between the interface circuit and the semiconductor memory and performs an internal operation of the interface circuit. The internal operation includes a signal controlling operation, a training operation, a read operation, an on-die termination operation, a ZQ calibration operation, or a driving force control operation.

Abstract: Disclosed is a light emitting diode package. According to one embodiment, the light emitting diode package includes a body and a light emitting diode chip. The body includes a substrate and a sidewall formed on the substrate and may be formed with a cavity therein. The light emitting diode chip may be mounted on the substrate in the cavity of the body. The sidewall may include multiple inner side surfaces formed to surround the cavity. The inner side surfaces of the sidewall may include adjacent inner side surfaces forming an angle of 90 degrees or more therebetween. In addition, the substrate may include an insulating base, a first interconnect pattern formed on the base, a second interconnect pattern spaced apart from the first interconnect pattern, and an insulating region disposed inside the cavity to separate the first interconnect pattern from the second interconnect pattern.

Abstract: The present disclosure relates to the composition and process for the production of an ultra-strong, biocompatible, electroconductive, and stretchable hydrogel, which comprises: a step (a) of physical or chemical modification of natural polymers e.g., preparation of silk nanofiber and double methacrylation of gelatin; a step (b) of graphene oxide (GO) carboxylation; a step (c) of carbodiimidation between methacrylated natural polymers of step (a) and carboxylated GO of step (b); and a step (d) of three dimensional (3D) bioprinting of step (c) with/without silk nanofiber. It was found that these steps in this disclosure give rise to a biocompatible hydrogel with high mechanical strength in the range of load-bearing soft tissue such as tendon and heart as opposed to conventional hydrogels.

Abstract: A compression type ramen cooker according to an embodiment includes a main frame including side plates formed on both sides thereof, an upper main bar connecting the upper portions of the side plates, and a lower main bar connecting the lower portions of the side plates, a cooking vessel part rotatably mounted on the inner sides of the side plates, a compression chamber mounted above the upper main bar to seal or open the cooking vessel part by moving up and down, an induction heater rotatably mounted on the rear side of the cooking vessel part to heat the cooking vessel part, a ramen discharging part for discharging cooked ramen from the cooking vessel part, and a drain mounted in the lower end of the side plates on both sides to discard the water used for cleaning the cooking vessel part after cooking.

Abstract: A compression chamber for a compression type ramen cooker is capable of cooking ramen by compression by blocking a discharge of air in a cooking container while cooking ramen. The compression chamber includes a lid, a chamber container having an upper portion on which the lid is mounted and a bottom surface to which the cooking container is coupled to seal the cooking container, a heater installed through the lid and mounted inside the chamber container to heat the water stored in the chamber container, a supply valve unit installed through the lid to supply water to the inside of the chamber container, a discharge valve unit installed through the lid to supply water in the chamber container to the cooking container, and a vapor discharge unit on a lower side of the chamber container to discharge compressed steam inside the cooking container.

Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.

Abstract: An augmented-reality device is aligned with an environment using a correction source. A position of a reflector (or other device that is part of a surveying system) coupled with a surveying rod is measured in relation to a correction. A position of a visual design, which is coupled with the surveying rod, is measured in relation to an augmented-reality device, based on an image of the visual design acquired by the augmented-reality device. A coordinate system of the augmented-reality device is aligned with the environment based on the position of the reflector in relation to the correction source, the position of the visual design in relation to the augmented-reality device, and an offset between the reflector and visual design.

Abstract: An antimicrobial susceptibility test was developed that utilizes deuterium labeling of membrane lipids to track the growth of bacterial cells. Deuterium labeling of lipids can be detected using matrix-assisted laser desorption/ionization mass spectrometry. Additionally, bacteria growth is performed on the MALDI target, minimizing sample preparation materials and time. The labeling efficiency, or the ratio of labeled to unlabeled lipid peaks, provides information about the growth rate of bacteria. This growth ratio can differentiate between resistant and susceptible strains of bacteria as a resistant strain will maintain ˜50% labeling efficiency between untreated and treated cultures. In comparison, a susceptible strain will see a decrease in fractional abundance of deuterium from ˜50% in the untreated to ˜10% in the treated.

Abstract: The present application provides a heterocyclic compound, an organic light emitting device including the heterocyclic compound in an organic material layer, and a composition for an organic material layer.

Abstract: The technology disclosed relates to authenticating users using a plurality of non-deterministic registration biometric inputs. During registration, a plurality of non-deterministic biometric inputs are given as input to a trained machine learning model to generate sets of feature vectors. The non-deterministic biometric inputs can include a plurality of face images and a plurality of voice samples of a user. A characteristic identity vector for the user can be determined by averaging feature vectors. During authentication, a plurality of non-deterministic biometric inputs are given as input to a trained machine learning model to generate a set of authentication feature vectors. The sets of feature vectors are projected onto a surface of a hyper-sphere. The system can authenticate the user when a cosine distance between the authentication feature vector and a characteristic identity vector for the user is less than a pre-determined threshold.

Abstract: The present disclosure relates to a welding base metal for recycling a railway wheel and a method for recycling a railway wheel using the same, which can overlay-weld a railway wheel with a welding base metal suitable for overlay-welding a railway wheel through a heat treatment, form a surface hardened layer, and strengthen the metal structure of the railway wheel, in order to recycle the railway wheel. The welding base metal for recycling a railway wheel may be used as a surface hardened layer of a railway wheel because the welding base metal has high hardness while exhibiting a similar property to the railway wheel. Furthermore, the welding base metal can change the metal structure of the recycled railway wheel, and thus delay the initial wear time of the recycled railway wheel.

Abstract: A compression chamber for a compression type ramen cooker is capable of cooking ramen by compression by blocking a discharge of air in a cooking container while cooking ramen. The compression chamber includes a lid, a chamber container having an upper portion on which the lid is mounted and a bottom surface to which the cooking container is coupled to seal the cooking container, a heater installed through the lid and mounted inside the chamber container to heat the water stored in the chamber container, a supply valve unit installed through the lid to supply water to the inside of the chamber container, a discharge valve unit installed through the lid to supply water in the chamber container to the cooking container, and a vapor discharge unit on a lower side of the chamber container to discharge compressed steam inside the cooking container.

Abstract: Provided is a razor cartridge including: at least one razor blade having a cutting edge formed therein; a blade housing accommodating the at least one razor blade in a longitudinal direction; and a housing cover comprising a razor blade window and a window frame, the razor blade window through which at least a portion of the cutting edge is exposed, and the window frame which is formed to surround at least a portion of the razor blade window and detachably coupled to the blade housing. At least one of the blade housing and the housing cover includes a detachment part for separating at least a portion of the window frame from the housing cover by an external force.

Abstract: Provided is a cell culture device that has a simple structure and ensures sufficient nutrient supply to cells and oxygenation of the cells to thereby enable mass cell culture. The cell culture device comprises: a cell culture container which is an approximately cylindrical body provided with a flat bottom part at the lower end; a dish-shaped body having an approximately disc shape which is provided with a plurality of magnetic attraction members, said magnetic attraction members being positioned in the circumferential part at equal intervals, and horizontally disposed in a non-contact state within a hollow space inside the cell culture container; and a cyclic body which is provided with a plurality of magnetic attraction members and positioned outside the cell culture container so that the cell culture container is located within the cycle thereof. The cyclic body and the dish-shaped body move vertically in magnetic conjunction to thereby agitate a medium and supply nutrients to cells.

Abstract: A compression type ramen cooker according to an embodiment includes a main frame including side plates formed on both sides thereof, an upper main bar connecting the upper portions of the side plates, and a lower main bar connecting the lower portions of the side plates, a cooking vessel part rotatably mounted on the inner sides of the side plates, a compression chamber mounted above the upper main bar to seal or open the cooking vessel part by moving up and down, an induction heater rotatably mounted on the rear side of the cooking vessel part to heat the cooking vessel part, a ramen discharging part for discharging cooked ramen from the cooking vessel part, and a drain mounted in the lower end of the side plates on both sides to discard the water used for cleaning the cooking vessel part after cooking.

Abstract: The present disclosure is directed to providing impeller type oil transportation device including; a transport unit provided such that a mixed fluid including an oil is fed on one side; and an impeller provided in the transport unit, the impeller including a core connected to a rotation axis, and wings extending radially from the core and having hydrophilic teeth on an outer surface to transport the mixed fluid including the oil to the other side of the transport unit by rotation, wherein the impeller is provided in the transport unit such that parts of the wings are exposed above a surface of the mixed fluid, to separate the oil adhered to the teeth while the mixed fluid is fed into a space between the adjacent teeth by capillary flow when the wings exposed above the surface of the mixed fluid move on to the mixed fluid by the rotation.

Abstract: The present disclosure is directed to providing impeller type oil transportation device including; a transport unit provided such that a mixed fluid including an oil is fed on one side; and an impeller provided in the transport unit, the impeller including a core connected to a rotation axis, and wings extending radially from the core and having hydrophilic teeth on an outer surface to transport the mixed fluid including the oil to the other side of the transport unit by rotation, wherein the impeller is provided in the transport unit such that parts of the wings are exposed above a surface of the mixed fluid, to separate the oil adhered to the teeth while the mixed fluid is fed into a space between the adjacent teeth by capillary flow when the wings exposed above the surface of the mixed fluid move on to the mixed fluid by the rotation.

Abstract: The present disclosure may provide a semiconductor device having a stable structure and a low manufacturing degree of the difficulty. The device may include conductive layers and insulating layers which are alternately stacked; a plurality of pillars passing through the conductive layers and the insulating layers; and a plurality of deposition inhibiting patterns, each deposition inhibiting pattern being formed along a portion of an interface between a side-wall of each of the pillars and each of the conductive layers and along a portion of an interface between each of the insulating layers and each of the conductive layers.