Abstract: Systems and methods include storage of a plurality of encrypted data pages of a row store database table in a persistent storage system, determination of a first encryption key associated with one of the plurality of encrypted data pages based on a header of the one of the plurality of encrypted data pages, determination of whether the first encryption key has been revoked, and, if it is determined that the first encryption key has been revoked, adding of a portion of volatile memory allocated to the one of the plurality of data pages to a free list.

Abstract: A catalyst for a fuel cell includes: a crystalline carbon support having a specific surface area of about 200 m2/g to about 500 m2/g; and intermetallic active particles of a transition metal and a noble metal, wherein the intermetallic active particles are supported on the crystalline carbon support and have a particle diameter of greater than or equal to about 3 nm.

Abstract: An inkjet printer gas pressure controller provided with a negative pressure test line, an inkjet printer including the gas pressure controller, and a method of testing negative pressure in the inkjet printer are proposed. The gas pressure controller having the negative pressure test line for controlling gas pressure includes a negative pressure generation unit capable of suctioning air and applying negative pressure through an output tube, a positive pressure generation unit capable of exhausting the air and applying positive pressure through the output tube, a negative pressure test line capable of testing the negative pressure generated by the negative pressure generation unit when connected to the negative pressure generation unit, and a pressure control module for controlling the negative pressure or positive pressure to be applied through the output tube by controlling a connection relationship between the negative pressure generation unit, the positive pressure generation unit, and the output tube.

Abstract: The present invention relates to an insulating gas used for electrical insulation or arc extinguishing of an electrical device, and an electrical device for insulating electricity using the same. The insulating gas of the present invention, which may replace SF6 gas, consists of a mixed gas of trifluoromethyl trifluorovinyl ether (CF3OCFCF2) and a carrier gas. The insulating gas of the present invention has the characteristics of a low boiling point, high dielectric strength, low toxicity, and a low global warming potential (GWP=1 or less), and thus may replace SF6, and the low global warming potential with no loss of high insulating capacity and arc extinguishing capability may reduce greenhouse gases.

Abstract: Aspects of the disclosed technology include techniques, a mechanism, and an apparatus for diagnosing a battery. One or more processors may measure voltages of a plurality of batteries and, based on the measured voltages, determine a voltage deviation of the plurality of batteries. The one or more processors may determine a voltage deviation variation of each battery of the plurality of batteries at predetermined times periods and may compare a pattern of the voltage deviation variations of each battery of the plurality of batteries with a preset diagnosis pattern to diagnose a state of each of the plurality of batteries.

Abstract: In various embodiments, methods, systems, software, and apparatuses for dynamically routing signals in a facility are provided, e.g., depending on current and/or predicted occupancy in the facility. The method may include: identifying small cell devices and Radio Access Units (RAUs) operatively coupled to a network of the facility; receiving one or more inputs through the network; determining a configuration for routing cellular communication signals between one or more of the small cell devices and one or more of the RAUs, which configuration is based at least in part on the one or more inputs; and routing the cellular communication signals between the one or more of the small cell devices and the one or more of the RAUs based at least in part on the configuration.

Abstract: An embodiment all-solid-state battery includes an anode current collector, a buffer layer disposed on the anode current collector, a solid electrolyte layer disposed on the buffer layer and including a solid electrolyte, a cathode active material layer disposed on the solid electrolyte layer, and a cathode current collector disposed on the cathode active material layer. The buffer layer includes a first layer disposed on the anode current collector and including an electrically conductive material, and a second layer disposed on the first layer and including a metal capable of alloying with lithium.

Abstract: Aspects of the disclosed technology include techniques, a mechanism, and an apparatus for diagnosing a battery. One or more processors may measure voltages of a plurality of batteries and, based on the measured voltages, determine a voltage deviation of the plurality of batteries. The one or more processors may determine a voltage deviation variation of each battery of the plurality of batteries at predetermined times periods and may compare a pattern of the voltage deviation variations of each battery of the plurality of batteries with a preset diagnosis pattern to diagnose a state of each of the plurality of batteries.

Abstract: A hydrogen generation and carbon dioxide storage system is capable of selectively dissolving and storing carbon dioxide contained in a mixed gas such as steel byproduct gas, exhaust gas, or the like. The system includes: a metal-carbon dioxide battery with an anode, a cathode, and a separator between the anode and the cathode; a first supply unit to supply a first electrolyte to the anode; a second supply unit to supply a second electrolyte to the cathode; a separation unit to separate hydrogen gas from a product discharged from the cathode; and a dissolution unit downstream of the separation unit to prepare a precursor by receiving a starting material and dissolving carbon dioxide in the starting material.

Abstract: A cathode active material for a lithium secondary battery has a structure of a lithium-nickel-based metal oxide. A crystal size in a (104) plane defined by Equation 1 is less than 200 nm. A thickness of a TM slab measured by a Rietveld method in a crystal structure of a space group R-3m by an X-ray diffraction (XRD) analysis is 2.15 ? or less. A thickness of a Li slab thickness measured by the Rietveld method in the crystal structure of the space group R-3m by the XRD analysis is 2.585 ? or more.

Abstract: An image sensor a substrate comprising a first surface and a second surface opposite to the first surface; a first pixel region; a second pixel region; a third pixel region; a first lens on the first pixel region; a second lens on the second and third pixel regions; an element separation film provided in the substrate and interposed between the first pixel region the second pixel region; a first color filter configured to transmit light focused by the second lens to the second pixel region and the third pixel region; and a color filter grid forming a region in which the first color filter is provided. A width of the first pixel region in a first direction is between 0.5 um and 0.9 um. The first lens is disposed on the second surface. The first direction is parallel to the second surface.

Abstract: A method for training an analysis model according to an embodiment includes receiving synthetic data for original data from a client apparatus, determining a hyperparameter value for analysis model training using the synthetic data, receiving a ciphertext for the original data from the client apparatus, and training the analysis model using the determined hyperparameter value and the received cipher text.

Abstract: A clock distribution network includes a global clock tree and a local clock tree. When the clock distribution network is activated, the local clock tree is first activated, and the voltage levels of first and second output clock signals are set as a common mode voltage level. When the global clock tree is activated, the global clock tree generates first and second global clock signals from first and second input clock signals. The local clock tree generates the first and second output clock signals from the first and second global clock signals.

Abstract: Disclosed is an automated liquid-phase immunoassay apparatus used with a cuvette having a plurality of chambers containing a reagent necessary for detection of an analyte in a biological specimen. The apparatus includes a movable cuvette module equipped with the cuvette, an optical reading module for optical assaying of a material resulting from a reaction between the specimen and the reagent, and a dispenser module which is positioned on the cuvette module and which dispenses the specimen and the reagent to the plurality of chambers of the cuvette and washes the specimen and the reagent therefrom.

Abstract: A method for highlighting lyrics of a sound source is disclosed. A method for highlighting lyrics according to the present invention includes the steps of: displaying, by a user terminal, lyrics of a sound source; receiving, by the user terminal, an input of a user's interaction to select part of the lyrics; displaying, by the user terminal, the selected part of the lyrics to be distinguished from other parts; and when an input of the user's interaction desiring to share shared information including the selected part of the lyrics with a server or other terminal is received, transmitting, by the user terminal, the shared information to the server or the other terminal.

Abstract: The present invention relates to a continuous blood glucose measurement apparatus which, by manufacturing a body-attachable unit in an assembled state inside an applicator, minimizes the additional work by a user for attaching the body-attachable unit to the body and thus enables the body-attachable unit to be attached to the body simply by means of operating the applicator, and, by providing a wireless communication chip on the body-attachable unit and enabling communication with an external terminal, can be used in a simple and convenient manner without the additional work of connecting a separate transmitter and enables easier maintenance and management, and, by having the operation of the body-attachable unit initiated by means of the user's manipulation after being attached to the body, enables the operation initiation point to be adjusted to an appropriate point as necessary by the user, enables an operation initiation in a stabilized state and thus enables more accurate blood glucose measurement.

Abstract: Disclosed are a cathode active material for a lithium secondary battery including a core containing lithium composite metal oxide, and a coating layer disposed on the core, containing a mixture of lithium oxide, tungsten oxide, boron oxide and phosphorus oxide, and having an amorphous phase, and a lithium secondary battery including the same.

Abstract: A hydrogen generation and carbon dioxide storage system for producing an alkali bicarbonate is provided. The system may include: a metal-carbon dioxide battery comprising an anode, a cathode, and a separator interposed between the anode and the cathode; a first supplier configured to provide a first electrolyte to the anode; a second supplier configured to provide a second electrolyte to the cathode; a reaction unit configured to manufacture a precursor material by reacting starting materials comprising aqueous alkali carbonate solution and carbon dioxide; a third supplier configured to provide the aqueous alkali carbonate solution to the reaction unit; a fourth supplier configured to provide the carbon dioxide to the reaction unit; and a hydrogen gas separator configured to separate hydrogen gas from a product discharged from the cathode and to provide a remainder of the product to the reaction unit.

Abstract: An operating room allocation apparatus may be provided. The apparatus according to an embodiment of the present disclosure may include: an information obtaining unit configured to obtain information about patient's entry and exit times in each operating room; a first calculation unit configured to calculate a utilization rate of the operating room for each certain time period based on the patient's entry and exit times; and a second calculation unit configured to receive certain time information from a user and calculate an average utilization rate by time period in the received time information.

Abstract: A camera lens assembly includes a plurality of optical lenses accommodated in the camera lens assembly, a first lens mount for detachably mounting the camera lens assembly to the camera body, a first electric connector formed on a rear face of the camera lens assembly. The first electric connector is electrically coupled to the camera body when the camera lens assembly is mounted on the camera body, a lens communication unit connected to the first electric connector so as to transmit and receive an electrical signal between the camera lens assembly and the camera body, a lens driver for controlling a displacement of each of the plurality of optical lenses based on the electrical signal received from the camera body, and an indicator for visually presenting an imaging state of the camera body, based on the received electrical signal.