Abstract: There is provided a method of processing uplink Ethernet packets of an aggregation node included in a distributed antenna system, the method includes: receiving a plurality of uplink Ethernet packets; summing the plurality of received uplink Ethernet packets; and transmitting the summed uplink Ethernet packets in an uplink direction.

Abstract: Provided is a turbidity meter including a main body, a fluid container which is formed inside the main body and in which a fluid is accommodatable, a fluid inlet pipe which is connected to the fluid container and via which the fluid is supplied to the fluid container, a fluid outlet pipe which is connected to the fluid container and via which the fluid is discharged from the fluid container to the outside, a wave source configured to irradiate waves toward the fluid container, a detector configured to detect a laser speckle at every time point set in advance, the laser speckle being generated due to multiple scattering of the irradiated waves in the fluid, and a controller configured to estimate the presence or absence of impurities in the fluid in real-time by using the detected laser speckle.

Abstract: Disclosed are an all-solid-state battery having high capacity and excellent durability and a method for manufacturing the same. The method includes preparing a first solid electrolyte part including a first transfer film layer and a first layer disposed on the first transfer film layer and including a first solid electrolyte, preparing a second solid electrolyte part including a second transfer film layer and a second layer disposed on the second transfer film layer and including a second solid electrolyte, forming a first solid electrolyte layer on a cathode part by transferring the first layer onto the cathode part, forming a second solid electrolyte layer on an anode part by transferring the second layer onto the anode part, and preparing a stack by stacking the first solid electrolyte layer and the second solid electrolyte layer so as to come into contact with each other.

Abstract: A distributed antenna system of the present invention implements duplication by a method of configuring a first headend unit and a second headend unit in an active state or in a standby state and connecting a hub unit or a remote unit to the first headend unit and the second headend unit and by a method of connecting, through a redundancy link, a hub unit or remote units of a branch group branched from and connected to each headend unit, activating the redundancy link according to the control of an active headend unit when an error occurs in a frame transmission path, and changing logical port states of a hub unit or remote units that cannot transmit frames due to the error in order to change the frame transmission path so that frame transmission is possible through the activated redundancy link.

Abstract: Disclosed is an in-building distributed repeater technique for distributing a wireless mobile communication signal into a building. Mobile communication signals of service carriers in communication between devices of an in-building distributed repeater system may be converted into intermediate frequency (IF) signals with adjacent frequency bands and may be transmitted or received as analog signals with compressed bandwidths through frequency division multiplexing. The service band gap spacing of Tx downstream analog IF signals transmitted by a headend unit to a remote service unit is wider than that of Rx downstream analog IF signals received from an active antenna unit.

Abstract: A technology related to a distributed antenna system is disclosed. In an exemplary embodiment, a distributed antenna system may include a master unit and a plurality of remote units. The master unit may be interfaced with a wireless communications network and perform a bidirectional simultaneous digital radio frequency distribution of a wireless signal. The plurality of remote units may be each coupled to the master unit, and each perform a wireless transmission or reception of a split radio frequency signal to or from terminals located within a coverage. The master unit and the plurality of remote units may transmit or receive digital radio frequency signals in a wavelet transform domain. The master unit may determine whether the digital radio frequency signal, transmitted by each of the remote units, is normal, and merge the digital radio frequency signals.

Abstract: The present invention relates to a test sample receiving block and a microbial detection apparatus using the same. The test sample receiving block may include a sample receiving block having a sample groove portion formed therein, the sample groove portion containing the sample so that a light emission module emits light to the sample and a sensor module can detect a speckle generated when the emitted light is scattered by motion of bacteria or microbes contained in the sample, wherein the sample receiving block is surface-treated to increase an optical path of light reaching the sensor module when the emitted light is reflected or scattered by the sample accommodated in the sample groove portion, so that a pattern is formed on a surface of the sample groove portion.

Abstract: A positive electrode material including a first positive electrode active material represented by Formula 1 and a second positive electrode active material represented by Formula 2, a positive electrode including the same, and a lithium secondary battery including the positive electrode are provided. The positive electrode material has a bimodal particle size distribution including large diameter particles and small diameter particles, and the difference in average particle diameter (D50) between the large diameter particles and the small diameter particles is 3 ?m or greater.

Abstract: Disclosed herein are an apparatus and method for managing personal information.

Abstract: Disclosed herein are an apparatus and method for recommending privacy control. A privacy control server includes multiple common privacy control recommendation models learned based on personal information provision histories of multiple users, a user preference determination unit for generating at least one question item based on the multiple common privacy control recommendation models and determining a privacy control preference of a user based on a result of a user answer to the at least one question item, and a common privacy control recommendation model provision unit for providing a common privacy control recommendation model selected to match the privacy control preference of the user to the user.

Abstract: A positive electrode active material precursor is provided, which includes a transition metal hydroxide particle represented by Formula 1 and a cobalt oxide particle and a manganese oxide particle attached to the surface of the transition metal hydroxide particle. A preparation method thereof, a positive electrode active material prepared using the same, a positive electrode including the positive electrode active material, and a secondary battery including the positive electrode are also provided.

Abstract: Provided is a turbidity monitoring apparatus including a multi-tubular structure including an inner tube through a fluid to be measured flows and an outer tube that surrounds the inner tube, a wave source configured to irradiate a wave towards the multi-tubular structure, a detection unit configured to detect a laser speckle at each preset time, the laser speckle being generated by multiple scattering of the irradiated wave in the multi-tubular structure, and a control unit configured to estimate, in real time, the concentration of suspended substances or turbidity substances in the fluid to be measured, by using the detected laser speckles.

Abstract: The present disclosure relates to a novel polypeptide having an activity of exporting 5?-inosine monophosphate, a microorganism comprising the same, a method for preparing 5?-inosine monophosphate using the same, and a method for increasing export of 5?-inosine monophosphate.

Abstract: Provided is a microorganism detection apparatus including a body, a sample accommodator module provided in the body to accommodate a sample, a beam irradiation module for irradiating a beam to the sample, a sensor module for detecting speckles generated when the beam irradiated to the sample is scattered due to motion of bacteria or microorganisms included in the sample, and a controller for controlling the beam irradiated from the beam irradiation module, and storing and analyzing images detected by the sensor module, wherein the sample accommodator module includes a sample accommodation block having a sample hole capable of accommodating a container containing the sample, and a heater for supplying heat to the bacteria or microorganisms in the sample at a preset temperature.

Abstract: A positive electrode material for a secondary battery, including a first positive electrode active material and a second positive electrode active material, wherein the first positive electrode active material and the second positive electrode active material consist of a lithium composite transition metal oxide including at least two or more transition metals selected from the group consisting of nickel (Ni), cobalt (Co) and manganese (Mn) are provided. The average particle size (D50) of the first positive electrode active material is two or more times larger than that of the second positive electrode active material, and the first positive electrode active material has a concentration gradient in which at least one of Ni, Co or Mn contained in the lithium composite transition metal oxide has a concentration difference of 1.5 mol % or more between the center and the surface of a particle of the lithium composite transition metal oxide.

Abstract: A polarizing plate and an optical display apparatus including the same are provided. A polarizing plate includes a polarizer and a protective film stacked on at least one surface of the polarizer, and the polarizer includes a hydrophobic polyvinyl alcohol resin, the polarizer has a surface roughness (Ra) of about 10 nm or less on a surface thereof facing the protective film, and the polarizing plate has a maximum metal ion-infiltration length of about 400 ?m or less between the polarizer and the protective film when metal powder-containing pastes are deposited on a surface of the polarizing plate in a thickness direction thereof and left at 60° C. and 95% relative humidity (RH) for 240 hours.

Abstract: A secondary battery includes a plurality of secondary batteries, each secondary battery having two side surfaces that are flat and parallel to each other; and a housing having a bottom part formed in a horizontal direction, two vertical sidewalls extending parallel to each other in a longitudinal direction at opposite ends of the bottom part, and a ceiling part extending from an upper end of each of the sidewalls and disposed parallel to the bottom part. The plurality of secondary batteries are mounted to be stacked in a thickness direction thereof so that side surfaces of outermost secondary batteries of the plurality of secondary batteries face respective sidewalls. A rib is formed inside each of edges connecting the bottom part and the sidewalls of the housing to each other to have a thickness thicker than other portions of the sidewalls.

Abstract: Disclosed is an all-solid-state battery having a uniformly deposited or grown lithium layer, thereby having excellent durability.

Abstract: Provided are a lithium secondary battery having high durability and a method for manufacturing the same. The lithium secondary battery includes a reinforcing layer positioned on the outside of at least one of a negative electrode current collector and a positive electrode current collector and including a matrix containing a polymer and a thermally conductive filler dispersed in the matrix.

Abstract: Disclosed are a device and method for managing credentials. In a multi-decentralized identity management service environment, a user can safely manage credentials that have been once issued, and can use the credentials in various user terminals without being redundantly issued credentials.