Abstract: A method of preparing a positive electrode active material and a positive electrode active material prepared by the same are disclosed herein. The method is capable of reducing an amount of a water-washing solution used, minimizing surface deterioration of the positive electrode active material, and effectively controlling residual lithium. In some embodiments, a method includes: performing a first water-washing of a lithium transition metal oxide in a first water-washing solution, performing a first filtering to separate the lithium transition metal oxide from the first water-washing solution, and performing, concurrently, a second water-washing and a second filtering of the lithium transition metal oxide with a second water-washing solution using a filtering device capable of concurrently water-washing and filtering, wherein the second water-washing solution is in an amount of 10 parts by weight to 50 parts by weight with respect to 100 parts by weight of the first water-washing solution.

Abstract: Disclosed herein are a biodegradable polymer microparticle for a filler, a freeze-dried body including the same, a manufacturing method thereof, and filler injection including the freeze-dried body. The freeze-dried body includes hydrophilic surface-treated biodegradable polymer microparticle and a biocompatible carrier, wherein the hydrophilic surface-treated biodegradable polymer microparticle has an average particle diameter (D50) of 20 to 50 ?m and is polydioxanone which has a carboxyl group on the surface thereof. The hydrophilic surface-treated biodegradable polymer microparticle is a plasma surface-treated product or a base surface-treated product using discharge of the biodegradable polymer microparticle. The content of the biocompatible carrier is 1 to 5 parts by weight based on 100 parts by weight of the freeze-dried body.

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 semiconductor chip includes a semiconductor device connected between a first node to which a power supply voltage is applied and a second node to which a ground voltage is applied, a first ring oscillator connected to the first node through a first supply switch and the second node through a first ground switch and a second ring oscillator connected to the first node through a second supply switch and the second node through a second ground switch, wherein the first supply and ground switches are configured to operate in response to a first control signal, thereby operating the first ring oscillator, and the second supply and ground switches are configured to operate in response to a second control signal, thereby operating the second ring oscillator.

Abstract: An integrated circuit and an electronic device including the integrated circuit are provided. An integrated circuit includes a sequential logic circuit, which includes a first scan cell that is configured to receive a scan input, and a plurality of scan cells sequentially connected in series from the first scan cell, a control unit, which is configured to receive a selection signal including an output of each of the plurality of scan cells, and is further configured to output a control signal responsive to the selection signal, and a monitoring circuit, which is configured to receive the control signal, is configured to perform first monitoring of first data at a first node that is an observation node in the sequential logic circuit responsive to the control signal, and is configured to output a result of the first monitoring to a monitoring node.

Abstract: A built-in type antenna of a folder type wireless phone is disclosed, in which the antenna is extended to a folder in a non-contact manner using a hinge unit. The antenna includes a second coupling plate formed at a curved part of the hinge unit and connected with the antenna of the folder, and a first coupling plate provided in a main body facing to the hinge unit and connected with the antenna of the main body, wherein the first coupling plate and the second coupling plate overlap each other to have a uniform opening within the range of a rotational angle area that opens and closes the folder.