Abstract: A propeller shaft for a vehicle includes a shaft having locking protrusions on an outer circumference, a tube having locking grooves on an inner circumference into which the shaft is inserted, the locking grooves engaging with the locking protrusions to form the spline coupling, a dynamic damper inside the tube to correspond to an end of the shaft and absorbing vibrations transmitted from a driving system, and a rubber stopper interposed between an outer circumference of the dynamic damper and the inner circumference of the tube to support the dynamic damper and correspond to the end of the shaft to limit sliding of the tube at normal times. The rubber stopper is broken by a pushing operation of the tube when an impact load greater than a collapse load of the rubber stopper acts on the rubber stopper, thereby permitting the sliding of the tube.

Abstract: A propeller shaft for a vehicle includes: a shaft having a plurality of catching protrusions for a spline-connection along an outer peripheral surface; a tube having a plurality of catching grooves along an inner peripheral surface into which the shaft is inserted; a stopper member provided to be fixed to an inner peripheral surface of the tube, one end corresponding to a remote end of the shaft and which is fractured when a collision load is applied thereto; and a locking member one end of which is in contact with one end of the stopper member and which is connected to the shaft and supports both ends of the stopper member together with the shaft, thereby restricting a sliding of the shaft, and which is slid inside the tube together with the shaft when the stopper member is fractured.

Abstract: A liquid crystal display (LCD) device includes first and second substrates facing each other, each of the first and second substrates having a first substrate having a display region, a non-display region, and a seal pattern region disposed in the non-display region; a protection layer on the first substrate and having a first seal pattern groove in the seal pattern region; first and second dams on the second substrate and respectively disposed at both ends of the first seal pattern groove, the first and second dams configured to form a second seal pattern groove corresponding to the first seal pattern groove; a pixel electrode on the first substrate; a common electrode on one of the first and second substrates; a liquid crystal layer between the first and second substrates; and a seal pattern having one end inserted into the first seal pattern groove and the other end inserted into the second seal pattern groove.

Abstract: A mounting structure of a drive-shaft may include a shaft, a housing, a spring guide slidably disposed inside the housing having one end facing the shaft, and a spring with one end supported by a spring guide and the other end supported by the housing, in which a transmission has a companion flange with a cup-shaped coupling portion at an end, so when the housing enters the coupling portion, an elastic force of the spring biases the housing into the coupling portion.

Abstract: In an aspect of the present disclosure, there is disclosed a manufacture method of an antireflection coating using a self-assembly nano structure, which includes forming a first metal droplet on a substrate by means of droplet epitaxy, depositing a first non-metal on the formed first metal droplet, and forming a first nano compound crystal by means of self-assembly of the deposited first non-metal and the first metal droplet.

Abstract: A propeller shaft for a vehicle includes a shaft having locking protrusions on an outer circumference, a tube having locking grooves on an inner circumference into which the shaft is inserted, the locking grooves engaging with the locking protrusions to form the spline coupling, a dynamic damper inside the tube to correspond to an end of the shaft and absorbing vibrations transmitted from a driving system, and a rubber stopper interposed between an outer circumference of the dynamic damper and the inner circumference of the tube to support the dynamic damper and correspond to the end of the shaft to limit sliding of the tube at normal times. The rubber stopper is broken by a pushing operation of the tube when an impact load greater than a collapse load of the rubber stopper acts on the rubber stopper, thereby permitting the sliding of the tube.

Abstract: A propeller shaft for a vehicle includes: a shaft having a plurality of catching protrusions for a spline-connection along an outer peripheral surface; a tube having a plurality of catching grooves along an inner peripheral surface into which the shaft is inserted; a stopper member provided to be fixed to an inner peripheral surface of the tube, one end corresponding to a remote end of the shaft and which is fractured when a collision load is applied thereto; and a locking member one end of which is in contact with one end of the stopper member and which is connected to the shaft and supports both ends of the stopper member together with the shaft, thereby restricting a sliding of the shaft, and which is slid inside the tube together with the shaft when the stopper member is fractured.

Abstract: A mounting structure of a drive-shaft includes: a shaft; a housing; a spring guide slidably disposed inside the housing having one end facing the shaft; and a spring with one end supported by a spring guide and the other end supported by the housing, in which a transmission has a companion flange with a cup-shaped coupling portion at an end, so when the housing enters the coupling portion, an elastic force of the spring biases the housing into the coupling portion. Since a fixing bolt is not used, it is possible to quickly assemble and disassemble the drive-shaft in maintenance.

Abstract: Provided is a device for measuring a bending angle of a constant velocity joint of a drive shaft, the device including an outer race provided at a drive shaft and having an opening part formed at one end thereof, a permanent magnet mounted in the opening part of the outer race, and a sensor provided on an outer peripheral surface of the drive shaft and interlocking with the permanent magnet to measure a bending angle between the drive shaft and the outer race. Therefore, a size and a direction of the bending angle between the drive shaft and the outer race may be measured, thereby making it possible to improve marketability and stability of a vehicle.

Abstract: A semiconductor apparatus includes a plurality of memory blocks including a plurality of unit memory blocks, respectively, a first area extending in a first direction among areas formed among the plurality of memory blocks, a second area extending in a second direction among the areas formed among the plurality of memory blocks, and a test mode-related circuit block arranged at an edge part of the first area.

Abstract: Provided is a concentration ratio controlling apparatus for concentration type solar cells. The concentration ratio controlling apparatus may include a first condensing unit to primarily concentrate quantity of light that is irradiated from a light source; a second condensing unit disposed between a lower portion of the first condensing unit and a solar cell to secondarily concentrate the quantity of light that has passed through the first condensing unit and thereby irradiate the secondarily concentrated light toward the solar cell; an adjustment unit disposed in an optical path between the light source and the first condensing unit to adjust a concentration area of the first condensing unit based on an external force, and thereby adjust the quantity of light that is concentrated by the first condensing unit; and a control unit to analyze an input signal and thereby supply a corresponding drive control signal to the adjustment unit.

Abstract: A thermoplastic resin composition includes (A) thermoplastic resin in an amount of about 100 parts by weight, (B) flame retardant in an amount of about 1 to about 10 parts by weight, and (C) carbon nanotubes in an amount of about 0.005 to about 0.05 parts by weight. The thermoplastic resin composition of the present invention can have excellent anti-dripping properties.

Abstract: Disclosed is a nano-structure manufacturing method which includes: forming a first semiconductor composite layer, a semiconductor quantum structure layer, a second semiconductor composite layer, and a semiconductor quantum dot layer on a substrate in order; thermally treating the semiconductor quantum dot layer so that quantum dots of the semiconductor quantum dot layer are aggregated; and performing an etching process by using the aggregated quantum dots as a mask.

Abstract: In an aspect of the present disclosure, there is disclosed a manufacture method of an antireflection coating using a self-assembly nano structure, which includes forming a first metal droplet on a substrate by means of droplet epitaxy, depositing a first non-metal on the formed first metal droplet, and forming a first nano compound crystal by means of self-assembly of the deposited first non-metal and the first metal droplet.

Abstract: There is provided a distributed Bragg's reflector (DBR) comprising a substrate and an unit distributed Bragg's reflector (DBR) layer, wherein a multi-layer is laminated on the substrate. The unit DBR layer is composed of a multi-layer laminated structure of unit digital-alloy multinary compound semiconductor layer/multinary compound semiconductor layer or unit digital-alloy multinary compound semiconductor layer/unit digital-alloy multinary compound semiconductor layer. The unit digital-alloy multinary compound semiconductor layer is composed of the multi-layer laminated structure of the first layer of multinary compound semiconductor and the second layer of a different multinary compound semiconductor on said first layer. The digital-alloy distributed Bragg's reflector of the present invention has a uniform quality on the substance area and the filter and reflector having uniformly high quality can be mass produced by using the reflector.

Abstract: The carbon nanotube dispersion includes: carbon nanotubes; polyarylene ether having a number-average molecular weight of about 5,000 g/mol to about 25,000 g/mol; and a solvent, wherein the polyarylene ether may be non-covalently bonded to surfaces of the carbon nanotubes via ?-? stacking interaction. The carbon nanotube dispersion is prepared by dispersing carbon nanotubes using inexpensive polyarylene ether.

Abstract: A thermoplastic resin composition includes (A) thermoplastic resin in an amount of about 100 parts by weight, (B) flame retardant in an amount of about 1 to about 10 parts by weight, and (C) carbon nanotubes in an amount of about 0.005 to about 0.05 parts by weight. The thermoplastic resin composition of the present invention can have excellent anti-dripping properties.

Abstract: Disclosed is a drive shaft that includes a first rotary shaft having a plurality of locking projections for a spline engagement formed along an outer circumferential surface of the end portion of the first rotary shaft. The driveshaft further includes a secondary rotary shaft having a plurality of locking grooves for the spline engagement corresponding to the locking projections, which are formed on the inner circumferential surface into which the first rotary shaft are inserted. Additionally, the driveshaft includes fixing members fitted on the outer circumference of the first rotary shaft and fixing apertures which are formed through the outer circumference of the first rotary shaft or the inner circumference of the second rotary shaft to correspond to the fixing members and into which the fixing members are fitted.

Abstract: A boot unit may comprise a boot that includes a small diameter portion formed at one side, a large diameter portion form at the other side, and a wrinkle portion formed between the small diameter portion and the large diameter portion, a bushing that is integrally formed with an interior circumference or an exterior circumference in a circumferential direction and having a predetermined thickness, and a band that is formed in the bushing along the circumferential direction of the bushing and has substantially a ring shape.

Abstract: Disclosed is a nano-structure manufacturing method which includes: forming a first semiconductor composite layer, a semiconductor quantum structure layer, a second semiconductor composite layer, and a semiconductor quantum dot layer on a substrate in order; thermally treating the semiconductor quantum dot layer so that quantum dots of the semiconductor quantum dot layer are aggregated; and performing an etching process by using the aggregated quantum dots as a mask.