Abstract: The present disclosure relates to a double-structure bush usable in a joint portion which operates in low speed and high load, and to a bearing assembly comprising same.

Abstract: The present disclosure relates to a double-structure bush usable in a joint portion which operates in low-speed and high-load, and a bearing assembly comprising the same.

Abstract: A method and an apparatus for providing a virtual channel service are disclosed. The method includes maintaining a contents list recorded in a personal video recorder and a virtual channel information, determining a playback order of recorded contents included in the list in accordance with a preset algorithm, and playing back in sequence the recorded contents through a predetermined virtual channel. As a result, a user may approach easily to the recorded contents.

Abstract: Provided are a method of manufacturing a flexible piezoelectric energy harvesting device using a piezoelectric composite, and a flexible piezoelectric energy harvesting device manufactured by the same. The method of manufacturing the flexible piezoelectric energy harvesting device includes: forming a first electrode layer on a first flexible substrate; spin-coating a piezoelectric composite layer on the first electrode layer, wherein the piezoelectric composite layer is produced by mixing piezoelectric powder with polymer; performing heat treatment on the piezoelectric composite layer to harden the piezoelectric composite layer; and bonding a second flexible substrate with a second electrode layer on the hardened piezoelectric composite layer. Therefore, it is possible to simplify a manufacturing process and manufacture a high-performance flexible piezoelectric energy harvesting device having various sizes and patterns.

Abstract: The present invention relates to a non-invasive health indicator monitoring system including a sensing module, an electric power storage module, and a circuit module to collect health indicator information by contacting with a subject. In addition, the present invention also relates to a method for monitoring health indicator continuously by using the health indicator monitoring system.

Abstract: Novel biologically active compounds of the general formula (I) in which one of X and X? represents a polymer, and the other represents a hydrogen atom; each Q independently represents a linking group; W represents an electron-withdrawing moiety or a moiety preparable by reduction of an electron-withdrawing moiety; or, if X? represents a polymer, X-Q-W— together may represent an electron withdrawing group; and in addition, if X represents a polymer, X? and electron withdrawing group W together with the interjacent atoms may form a ring; each of Z1 and Z2 independently represents a group derived from a biological molecule, each of which is linked to A and B via an amine group; or Z1 and Z2 together represent a single group derived from a biological molecule which is linked to A and B via two amine groups; A is a C1-5 alkylene or alkenylene chain; and B is a bond or a C1-4 alkylene or alkenylene chain; are formed by conjugating a suitable polymer to a suitable biologically active molecule via amine groups in sai

Abstract: Provided is an oxide electronic device, including: an oxide substrate; an oxide thin film layer formed on the oxide substrate and containing an oxide that is heterogeneous with respect to the oxide substrate; and a ferroelectric layer formed on the oxide thin film layer and controlling electric conductivity of two-dimensional electron gas (2DEG) generated at an interface between the oxide substrate and the oxide thin film layer. Provided also is a method for manufacturing an oxide electronic device, including: depositing, on an oxide substrate, an oxide that is heterogeneous with respect to the oxide substrate to form an oxide thin film layer; and forming a ferroelectric layer on the oxide thin film layer, wherein the ferroelectric layer controls electric conductivity of 2DEG generated at an interface between the oxide substrate and the oxide thin film layer.

Abstract: Provided is a method of fabricating an oxide thin film device using laser lift-off and an oxide thin film device fabricated by the same. The method includes: forming an oxide thin film on a growth substrate; bonding a temporary substrate on the oxide thin film; irradiating laser onto the growth substrate to separate the oxide thin film on which the temporary substrate has been bonded from the growth substrate; bonding a device substrate on the oxide thin film on which the temporary substrate has been bonded; and forming an upper electrode film on the oxide thin film. Therefore, it is possible to overcome problems caused by a defective layer by transferring an oxide thin film transferred on a polymer-based temporary substrate onto a device substrate, without using an interface on which a defective layer formed due to oxygen diffusion upon laser lift-off is formed.

Abstract: Novel biologically active compounds of the general formula (I) in which one of X and X? represents a polymer, and the other represents a hydrogen atom; each Q independently represents a linking group; W represents an electron-withdrawing moiety or a moiety preparable by reduction of an electron-withdrawing moiety; or, if X? represents a polymer, X-Q-W— together may represent an electron withdrawing group; and in addition, if X represents a polymer, X? and electron withdrawing group W together with the interjacent atoms may form a ring; each of Z1 and Z2 independently represents a group derived from a biological molecule, each of which is linked to A and B via a nucleophilic moiety; or Z1 and Z2 together represent a single group derived from a biological molecule which is linked to A and B via two nucleophilic moieties; A is a C1-5 alkylene or alkenylene chain; and B is a bond or a C1-4 alkylene or alkenylene chain; are formed by conjugating a suitable polymer to a suitable biologically active molecule via nuc

Abstract: The present disclosure provides a gas sensor including: a substrate; an electrode formed on the substrate; and a gas-sensing layer formed on the electrode, wherein the gas-sensing layer is a self-heating nanocolumnar structure having nanocolumns formed on the electrode and inclined with respect to the electrode with an angle of 60-89° and gas diffusion pores formed between the nanocolumns. The gas sensor according to the present disclosure requires no additional heater since it self-heats owing to the nanocolumnar structure and exhibits superior gas sensitivity even when no heat is applied from outside. Also, it can be mounted on mobile devices such as mobile phones because it consumes less power.

Abstract: Disclosed are a high-sensitivity transparent gas sensor and a method for manufacturing the same. The transparent gas sensor includes a transparent substrate, a transparent electrode formed on the transparent substrate and a transparent gas-sensing layer formed on the transparent electrode. The transparent gas-sensing layer has a nanocolumnar structure having nanocolumns formed on the transparent electrode and gas diffusion pores formed between the nanocolumns.

Abstract: A cathode thin film for a lithium secondary cell, which uses a cathode active material substituting Sn for Mn in lithium manganese oxide, has a high discharge capacity and an improved cycle property.

Abstract: Provided is a method of fabricating an oxide thin film device using laser lift-off and an oxide thin film device fabricated by the same. The method includes: forming an oxide thin film on a growth substrate; bonding a temporary substrate on the oxide thin film; irradiating laser onto the growth substrate to separate the oxide thin film on which the temporary substrate has been bonded from the growth substrate; bonding a device substrate on the oxide thin film on which the temporary substrate has been bonded; and forming an upper electrode film on the oxide thin film. Therefore, it is possible to overcome problems caused by a defective layer by transferring an oxide thin film transferred on a polymer-based temporary substrate onto a device substrate, without using an interface on which a defective layer formed due to oxygen diffusion upon laser lift-off is formed.

Abstract: Provided are a method of manufacturing a flexible piezoelectric energy harvesting device using a piezoelectric composite, and a flexible piezoelectric energy harvesting device manufactured by the same. The method of manufacturing the flexible piezoelectric energy harvesting device includes: forming a first electrode layer on a first flexible substrate; spin-coating a piezoelectric composite layer on the first electrode layer, wherein the piezoelectric composite layer is produced by mixing piezoelectric powder with polymer; performing heat treatment on the piezoelectric composite layer to harden the piezoelectric composite layer; and bonding a second flexible substrate with a second electrode layer on the hardened piezoelectric composite layer. Therefore, it is possible to simplify a manufacturing process and manufacture a high-performance flexible piezoelectric energy harvesting device having various sizes and patterns.

Abstract: A cathode thin film for a lithium secondary cell, which uses a cathode active material substituting Sn for Mn in lithium manganese oxide, has a high discharge capacity and an improved cycle property.

Abstract: Provided are a thin film condenser for high-density packaging, a method for manufacturing the same and a high-density package substrate. The thin film condenser for high-density packaging, includes: a support substrate; a lower electrode formed on the support substrate; a dielectric thin film formed on the lower electrode; and an upper electrode formed on the dielectric thin film. Provided also is a method for manufacturing the same. The high-density package substrate, includes: at least two stacked substrates; thin film condensers embedded in the stacked substrates; an internal connection electrode formed in the stacked substrates and connecting the thin film condensers in series or in parallel; a surface electrode formed on the surface of the outermost substrate among the stacked substrates and connected to the internal connection electrode; and an integrated circuit connected to the surface electrode via a bump.

Abstract: A light emitting diode (LED) driver apparatus is provided. The LED driver apparatus includes an input unit, a PWM signal generation unit, a DC-DC converter, an LED driving unit, and a synchronization unit. The input unit is configured to receive a dimming signal. The PWM signal generation unit is configured to generate a PWM signal using an oscillator having a preset frequency. The DC-DC converter is configured to provide a driving voltage to an LED array using the generated PWM signal. The LED driving unit is configured to drive the LED array using the received dimming signal. The synchronization unit is configured to reset the oscillator based on a driving state of the LED array.

Abstract: Disclosed are a high-sensitivity transparent gas sensor and a method for manufacturing the same. The transparent gas sensor includes a transparent substrate, a transparent electrode formed on the transparent substrate and a transparent gas-sensing layer formed on the transparent electrode. The transparent gas-sensing layer has a nanocolumnar structure having nanocolumns formed on the transparent electrode and gas diffusion pores formed between the nanocolumns.

Abstract: Provided are a dielectric thin film and a method for manufacturing the same. The dielectric thin film has a composition represented by the formula of TaxMg1-xO, wherein 0.082?x?0.89. The dielectric thin film provides excellent dielectric characteristics. Particularly, the dielectric thin film provides a high relative permittivity as well as low dielectric loss and leakage current, although it is formed (deposited) at a low temperature of 350° C. or lower (between room temperature and 350° C.).

Abstract: Disclosed are a transparent conductive composition including a material of the following formula, a target, a transparent conductive thin film using the target, and a method for fabricating the same. The disclosed transparent conductive composition and transparent conductive thin film have superior conductivity (low resistivity) and high light transmittance. Especially, they may be usefully applied for the flexible electronic devices, which may be called the core of the future display industry, because they have low resistivity of not greater than 10?3 ?·cm and a high light transmittance of at least 90% even when deposition is carried out at room temperature. AlxZn1-xO In the above formula, x is within the range of 0.04?x?0.063.