Abstract: The present invention relates to a lithium metal complex oxide and a preparation method thereof, and more particularly, to a lithium metal complex oxide mixed with a metal compound for a lithium reaction, stirred and heat-treated to allow residual lithium and a metal compound for reducing lithium (or a metal compound for lithium reduction) to react with each other on a surface to form a product, which is included in the lithium metal complex oxide, in which the content of Ni3+ is higher than the content of Ni2+ and a ratio of Ni3+/Ni2+ is 1.5 or greater so that life characteristics and capacity characteristics are improved, while residual lithium is reduced, and a preparation method thereof.

Abstract: Disclosed is an austenitic stainless steel having an increased yield ratio. The disclosed austenitic stainless steel is characterized by comprising, in percent by weight (wt %), 0.1% or less (exclusive of 0) of C, 0.2% or less (exclusive of 0) of N, 1.5 to 2.5% of Si, 6.0 to 10.0% of Mn, 15.0 to 17.0% of Cr, 0.3% or less (exclusive of 0) of Ni, 2.0 to 3.0% of Cu, and the remainder of Fe and other inevitable impurities, and satisfying Expressions (1) and (2) below. 3.2?5.53+1.4Ni?0.16Cr+17.1(C+N)+0.722Mn+1.4Cu?5.59Si?7??Expression (1): 551-462(C+N)?9.2Si?8.1Mn?13.7Cr?29(Ni+Cu)?110??Expression (2): wherein C, N, Si, Mn, Cr, Ni, and Cu indicate the content (wt %) of respective elements.

Abstract: Disclosed is a lithium complex oxide and method of manufacturing the same, more particularly, a lithium complex oxide effective in improving the characteristics of capacity, resistance, and lifetime with reduced residual lithium and with different interplanar distances of crystalline structure between a primary particle locating in an internal part of secondary particle and a primary particle locating on the surface part of the secondary particle, and a method of preparing the same.

Abstract: The present invention relates to a lithium metal complex oxide and a preparation method thereof, and more particularly, to a lithium metal complex oxide mixed with a metal compound for a lithium reaction, stirred and heat-treated to allow residual lithium and a metal compound for reducing lithium (or a metal compound for lithium reduction) to react with each other on a surface to form a product, which is included in the lithium metal complex oxide, in which the content of Ni3+ is higher than the content of Ni2+ and a ratio of Ni3+/Ni2+ is 1.5 or greater so that life characteristics and capacity characteristics are improved, while residual lithium is reduced, and a preparation method thereof.

Abstract: Disclosed is a lithium complex oxide and method of manufacturing the same, more particularly, a lithium complex oxide effective in improving the characteristics of capacity, resistance, and lifetime with reduced residual lithium and with different interplanar distances of crystalline structure between a primary particle locating in an internal part of secondary particle and a primary particle locating on the surface part of the secondary particle, and a method of preparing the same.

Abstract: A system for estimating a real-time renewable energy generation quantity according to an embodiment of the present disclosure includes a site setting unit for setting a benchmarking group based on geographical locations of a plurality of renewable energy generation sites and setting a benchmarking site for each benchmarking group, a site generation quantity calculation unit for calculating a real-time generation quantity prediction value of each of sites except the benchmarking site among the sites included in the benchmarking group by using a preset prediction model based on a real-time generation quantity actual-measurement value of the corresponding benchmarking site, and a total generation quantity estimation unit for estimating a total real-time generation quantity of all the sites by summing the calculated real-time generation quantity prediction values for the respective sites and the real-time generation quantity actual-measurement value of the benchmarking site.

Abstract: A substrate transfer device includes a transfer unit configured to transfer, in a first direction, a carrier in which substrates are stored, an upper interface unit configured to move the transfer unit, a lower interface unit configured to receive the carrier from the transfer unit, and a controller configured to control the upper interface unit and the lower interface unit integrally such that the transfer unit and the carrier move in the first direction at the same time.

Abstract: An overlay measurement device measures an error between a first overlay mark and a second overlay mark respectively formed on different layers formed on a wafer. The device is configured to detect a height of the first overlay mark based on a change in the signal of the first detector according to a change in the relative position of the objective lens with respect to the wafer in the optical axis direction and detect a height of the second overlay mark based on a change in the signal of the second detector according to a change in the relative position of the objective lens with respect to the wafer in the optical axis direction.

Abstract: A measurement carrier includes a housing having an internal space, and a flow-rate measuring device located within the internal space. A bottom surface of the housing includes a first inflow hole, a second inflow hole, and an outflow hole, which provide fluid communication between the internal space and an outer space. The flow-rate measuring device may include a first flow-rate measuring sensor in fluid communication with the first inflow hole, and a second flow-rate measuring sensor in fluid communication with the second inflow hole.

Abstract: Disclosed is a smart balancing energy charging control system including a multi-power input unit connected to each of different power sources and receiving power for charging a battery pack from the different power sources, a micro-controller unit performing charging within rated power of the battery pack using charge power applied from the different power sources applied from the multi-power input unit and performing smart charging balancing control by determining whether a predetermined condition is met, and a battery pack charge connection unit coupled to the battery pack and charging the battery pack with the charge power applied through the smart charging balancing control under the control of the micro-control unit.

Abstract: The present invention discloses a gold-colored steel sheet capable of expressing color without peeling of a modified layer and the gold-colored steel sheet capable of forming a color-modified layer through a conventional annealing process without expensive facilities. A method of manufacturing the gold-colored steel sheet according to an embodiment of the present invention can form a TiN modified layer on a surface of a steel sheet comprising 0.3 to 1.5 wt % of titanium (Ti) by an annealing treatment in a nitrogen (N2) atmosphere at 900 to 1,200° C. for 30 to 300 seconds.

Abstract: This intelligent portable energy storage system interlinked with an uninterruptible power supply comprises: an uninterruptible power supply including a power input terminal to which power is input from an external power source and an output terminal with which a load device is coupled; a plurality of output ports for coupling the load device; a communication module for receiving external data; and an energy storage device including an analysis processor for learning and analyzing the external data received by the communication module and the power consumption patterns of a user, wherein, when a power supply cutoff time is detected through the learning and analysis by the analysis processor, the energy storage device is cut off from regular charging received from the uninterruptible power supply and supplies power to the load device.

Abstract: A technology disclosed in the present disclosure provides a Group III-V-based quantum dot including a seed which includes a Group III element, a Group V element, and an active metal having various oxidation numbers and in which a molar ratio of the Group III element and the active metal is 1:3 to 1:30, and a method of manufacturing the same.

Abstract: This invention relates to a method for producing multimodal polyolefin using multistage continuous polymerization process for producing multimodal polyolefin having superior melt-strength, moldability, mechanical strength, processability, and appearance. A method for producing multimodal polyolefin using multistage polymerization process, comprising the steps of: polymerizing a high molecular weight bimodal polymer by introducing a monomer in the presence of a catalyst composition including two or more different catalysts in a first reactor; and continuously introducing the high molecular weight bimodal polymer produced in the first reactor into a second reactor, and polymerizing a low molecular weight bimodal polymer by introducing a monomer in the presence of the catalyst composition, wherein the multimodal polyolefin includes the high molecular weight bimodal polymer and the low molecular weight bimodal polymer at the same time.

Abstract: The austenitic stainless steel that does not cause defects such as aging crack or delayed fracture even after the expansion and curling process of 5 steps or more is disclosed. In accordance with an aspect of the present disclosure, an austenitic stainless steel with excellent pipe expanding workability and aging crack resistance includes, in percent (%) by weight of the entire composition, C: 0.01 to 0.04%, Si: 0.1 to 1.0%, Mn: 0.1 to 2.0%, Cr: 16 to 20%, Ni: 6 to 10%, Cu: 0.1 to 2.0%, Mo: 0.2% or less, N: 0.035 to 0.07%, the remainder of iron (Fe) and other inevitable impurities, and the C+N satisfies 0.1% or less, the product of the Md30 (° C.) value and average grain size (?m) satisfies less than ?500.

Abstract: An overlay measurement device for measuring an error between a first overlay mark and a second overlay mark respectively formed on different layers formed on a wafer is proposed. The device includes a light source, a first beam splitter configured to split a beam emitted from the light source into two beams, a first color filter configured to adjust a center wavelength and a band width of one of the beams split by the first beam splitter so that the center wavelength and the band width of one of the beams become suitable for acquiring an image of the first overlay mark.

Abstract: A stainless steel with a yield strength of 2,200 MPa or more is disclosed through the generation of the strain-induced martensite phase and the increase of the martensite phase strength. A high strength stainless steel according to an embodiment of present disclosure includes, in percent (%) by weight of the entire composition, C: 0.14 to 0.20%, Si: 0.8 to 1.0%, Mn: more than 0 and 0.5% or less, Cr: 15.0 to 17.0%, Ni: 4.0 to 5.0%, Mo: 0.6 to 0.8%, Cu: 0.5% or less, N: 0.05 to 0.11%, the remainder of iron (Fe) and other inevitable impurities, and C+N: 0.25% or more and Md30 value satisfies 40° C. or more.

Abstract: The present invention provides a quantum dot of which a surface is passivated with a short chain ligand, and a method of passivating a surface of the quantum dot using a ligand exchange reaction.

Abstract: Disclosed is a ferritic stainless steel with improved workability and high temperature strength through control of component composition and precipitate distribution, and a manufacturing method thereof. The ferritic stainless steel excellent in workability and high temperature strength according to an embodiment of the present disclosure includes, in percent (%) by weight of the entire composition, C: 0.0005 to 0.02%, N: 0.005 to 0.02%, Si: 0.01 to 1.0%, Mn: 0.01 to 1.2%, P: 0.001 to 0.05%, Cr: 10.0 to 25.0%, Mo: 1.5 to 3.0%, Nb: 0.3 to 0.7%, W: 0.5 to 2.0%, the remainder of iron (Fe) and other inevitable impurities, and the number of precipitates with an average diameter of 0.5 ?m or less is 105 pieces/mi or less.

Abstract: The present invention relates to a method of preparing a positive electrode active material for a lithium secondary battery and the positive electrode active material for the lithium secondary battery prepared thereby, and more specifically, to a method of preparing a positive electrode active material for a lithium secondary battery, the method comprising doping or coating the positive electrode active material for the lithium secondary battery with a predetermined metal oxide, and the positive electrode active material for the lithium secondary battery which is prepared thereby and has a reduced amount of residual lithium.