Abstract: Embodiments of the present invention provide a cathode active material for a lithium secondary battery including lithium-transition metal composite oxide particles. The lithium-transition metal composite oxide particles have a (113) plane FWHM change rate of 75% or less, which is measured through in-situ X-ray diffraction (XRD) and defined by Equation 1. Thereby, life-span characteristics of the lithium secondary battery may be improved by preventing a lattice structure and/or a crystal structure in lithium-transition metal composite oxide particles from being deformed.

Abstract: The simulation system for predicting heating and cooling loads of a building comprises the collection unit collecting measurement data of a target building from a BEMS, the identification unit identifying indoor and outdoor temperature, humidity, and insolation measured in the building in real time based on RTS method, the correlation derivation unit deriving a correlation between energy usage based on the BEMS measurement data collected by the collection unit and the cooling and heating loads according to indoor and outdoor temperature, humidity, and insolation identified by the identification unit, the simulation unit predicting a change in cooling and heating loads according to a change in at least one of pieces of measurement data based on the correlation derived from the correlation derivation unit to perform a simulation, and the information provision unit providing a simulation result from the simulation unit in a visible form to a user terminal.

Abstract: A cathode active material for a lithium secondary battery according to an embodiment includes a plurality of a lithium metal oxide particle that include a core containing a lithium iron phosphate-based compound and being doped with at least one metal element of Ti, V and Mn; and a carbon coating formed of the core. A ratio of an intensity of a peak corresponding to PO4 relative to an intensity of a D band measured by a Raman spectroscopy analysis is in a range from 0.10 to 0.33.

Abstract: The present invention provides: a method for preparing a petcoke-based artificial graphite negative electrode material for a lithium secondary battery, in which low-grade petcoke is used as a raw material, and artificial graphite having a high degree of graphitization is prepared through leaching and acid treatment of pulverized/classified low-grade petcoke in an acidic solution, followed by carbonization and graphitization; an artificial graphite negative electrode material for a lithium secondary battery, prepared thereby; and a lithium secondary battery.

Abstract: The present invention relates to a motor driving control system and a control method thereof. The purpose of the present invention is to provide a motor driving control system and a control method thereof, which may change electric current limiting logic, which is applied to a BLDC motor for a cooling fan, in response to an operating speed of the motor to stably protect the motor from an overload in a low-speed driving state as well as an overload in a high-speed driving state.

Abstract: A cathode active material for a lithium secondary battery includes a lithium-transition metal composite oxide particle having a lattice strain (?) of 0.18 or less, which is calculated by applying Williamson-Hall method defined by Equation 1 to XRD peaks measured through XRD analysis, and having an XRD peak intensity ratio of 8.9% or less, which is defined by Equation 2. By controlling the lattice strain and XRD peak intensity ratio of the lithium-transition metal composite oxide particle, a lithium secondary battery with improved life-span characteristics as well as output characteristics is provided.

Abstract: The present invention relates to a piezoelectric ceramic stacked structure, and the piezoelectric ceramic stacked structure includes at least one first layer including a KNN-based ceramic; and at least one second layer including a BFO-based ceramic, wherein a ratio of a number (n1) of the first layers stacked to a number (n2) of the second layers stacked in the piezoelectric ceramic stacked structure satisfies Equation (1) below: 0.8×|q|/|p|?n1/n2?1.2×|q|/|p|??(1) (Equation (1) is as defined in the Description).

Abstract: A multilayer electronic component includes: a body including a capacitance forming portion in which dielectric layers and internal electrodes are alternately disposed in a first direction, and cover portions disposed on an upper surface and a lower surface of the capacitance forming portion, respectively, in the first direction; and external electrodes disposed on the body, wherein the cover portion includes a plurality of dielectric grains and a plurality of pores, and Gn/Pn is more than 10 and less than 30, in which Gn is the number of dielectric grains included in the cover portion and Pn is the number of pores included in the cover portion.

Abstract: A touch sensor may include a substrate and may include electrode units, first demultiplexers, second demultiplexers, and driving pads all located on the substrate. The electrode units each may include a plurality of electrode groups, the electrode groups each including a plurality of touch electrodes. The first demultiplexers each may include a plurality of sub-demultiplexers and each may be electrically connected to a corresponding one of the electrode units. Each of the sub-demultiplexers of a first demultiplexer may be electrically connected to a corresponding one of the electrode groups of a corresponding electrode unit. The second demultiplexers may be connected between the first demultiplexers and the driving pads.

Abstract: A cathode active material for a lithium secondary battery according to an embodiment includes lithium metal oxide particles containing lithium and nickel, and containing a small amount of cobalt or no cobalt. An average particle diameter, a modulus and a hardness of the lithium metal oxide particles are adjusted to satisfy a desired relation. A lithium secondary battery has improved high-temperature storage properties, structural stability and high power properties.

Abstract: The Zero User Interface (UI)-based automatic speech translation system and method can solve problems such as the procedural inconvenience of inputting speech signals and the malfunction of speech recognition due to crosstalk when users who speak difference languages have a face-to-face conversation. The system includes an automatic speech translation server, speaker terminals and a counterpart terminal. The automatic speech translation server selects a speech signal of a speaker among multiple speech signals received from speaker terminals connected to an automatic speech translation service and transmits a result of translating the speech signal of the speaker into a target language to a counterpart terminal.

Abstract: The present invention relates to a polyimide precursor, a polyimide precursor solution, a polyimide film, a manufacturing method thereof, and a use thereof. The polyimide precursor according to the present invention may provide a polyimide film that has excellent heat resistance and satisfies transparency and a low coefficient of linear thermal expansion, and thus the polyimide film will be usefully applicable in the field of flexible displays requiring high dimensional stability.

Abstract: A railess variable seatback type rear seat includes: a linear movement device configured to convert a rotation of a motor into a linear movement; a sliding movement device configured to convert the linear movement into a sliding movement in which a seat cushion is pushed forward or backward; and a reclining angle change device configured to convert the sliding movement into a reclining movement, and to fold a seatback, which is connected to the seat cushion, forward or to recline the seatback backward.

Abstract: A touch sensor includes first touch cells disposed in a first touch sensing area, the first touch cells each including a first touch pattern and a first dummy pattern, and second touch cells disposed in a second touch sensing area, the second touch cells each including a second touch pattern and a second dummy pattern. An area of a first dummy pattern area in which the first dummy pattern is disposed is greater than an area of a second dummy pattern area in which the second dummy pattern is disposed.

Abstract: A battery includes an electrode assembly including a first electrode, a second electrode and a separator between the first electrode and the second electrode, the first electrode, the second electrode and the separator being wound around a winding axis to define a core and an outer peripheral surface. The first electrode and the second electrode include a first uncoated region and a second uncoated region along a winding direction, respectively, and an active material layer coating is absent in the first uncoated region and the second uncoated region. The battery further includes a housing receiving the electrode assembly through an opening formed at a bottom, a first current collector coupled to the first uncoated region and disposed within the housing, a cap covering the opening, a spacer interposed between the cap and the electrode assembly to fix the electrode assembly and seal the housing, and a terminal electrically connected to the second uncoated region.

Abstract: The present invention relates to an integrated connector and a heat exchanger including the same, in which a connector main body is formed by pressing one pipe, a cap is press-fitted into the connector main body, such that the integrated connector is formed so that an interior of the connector main body is blocked by the cap. Therefore, the number of components used to manufacture a connector, which connects and securely couples a header tank and a gas-liquid separator, may be reduced, the integrated connector may be easily manufactured, and a brazing defect may be reduced at portions where the integrated connector is joined to the header tank and the gas-liquid separator of the heat exchanger.

Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on a winding axis to define a core and an outer circumference. The first electrode includes a first active material portion coated with an active material layer and a first uncoated portion not coated with an active material layer along a winding direction. At least a part of the first uncoated portion is defined as an electrode tab by itself. The first uncoated portion includes a first portion adjacent to the core of the electrode assembly, a second portion adjacent to the outer circumference of the electrode assembly, and a third portion interposed between the first portion and the second portion. The first portion or the second portion has a smaller height than the third portion in the winding axis direction.

Abstract: Provided is method of providing a conversation service in an electronic apparatus, including receiving a conversation input from a user terminal, identifying conversation history information associated with a user of the user terminal, obtaining score information corresponding to the user based on the conversation input and the conversation history information, obtaining response information based on the conversation input and the conversation history information, and providing the user terminal with at least one of the score information and the response information.

Abstract: A service identifying and processing method using a wireless terminal message according to an exemplary embodiment of the present invention includes (a) receiving a wireless terminal message by a first entity which is a mobile device; and (b) expressing, by a first agent which is an information processing application program installed on the first entity, entity information of second entity based on the wireless terminal message and service confirmation information related to service provided by the second entity, through an application screen by the first agent.

Abstract: A memory controller includes: a request buffer storing read and write requests of a first rank, and read and write requests of a second rank; an arbiter determining a first request and second requests among the stored requests, the second requests to be issued after the first request according to a descending priority, such that a B request has a higher priority than a C request among the second requests; and a command generator generating commands to be issued to the first rank and the second rank according to the issue order of the first and second requests, wherein the B request is a command whose type and rank are different from those of the first request, and wherein the C request is a command whose type is the same as the type of the first request and whose rank is different from the rank of the first request.