摘要:
An air purifier includes a vibrating member disposed adjacent to a dust filter, and first and second vibration motor assemblies disposed longitudinally and transversely on the vibrating member, respectively, to cause the vibrating member to vibrate in several directions. Each of the vibration motor assemblies has a case fixed to the vibrating member, a vibrating motor disposed within the case, and a cover to close the case. The vibration motor includes a stator fitted to a sheet member within the case, a rotor rotatably disposed within the stator, and an eccentric shaft connected to the rotor to generate vibration via an eccentric rotation of the eccentric shaft.
摘要:
The present invention relates to a digital/analog converter, in which a divided-voltage generating section and a divided-voltage selecting section are added to a conventional digital/analog converter so that a digital signal with high resolution of more than 10 bits can be processed and the size of an IC can be reduced. The digital/analog converter includes a first divided-voltage generating section which divides a reference supply voltage through the voltage distribution; a decoder section which receives a digital signal so as to output a decoded selection signal; a first divided-voltage selecting section which selects and outputs a plurality of divided voltages among the divided voltages generated from the first divided-voltage generating section on the basis of the selection signal output from the decoder section; a second divided-voltage selecting section which selects and outputs a plurality of divided voltages among the divided-voltages output from the first divided-voltage selecting section on the basis of the selection signal output from the decoder section; a second divided-voltage generating section which divides the plurality of divided-voltages output from the second divided-voltage selecting section; a third divided-voltage selecting section which selects a predetermined voltage among the divided-voltages output from the second divided-voltages generating section on the basis of the selection signal output from the decoder; and a voltage output section which outputs the predetermined voltage selected from the third divided-voltage selecting section.
摘要:
A multi-transmission phase mask, and an exposure method using the same are disclosed. The mask comprises a transparent substrate, a light shielding film formed on the transparent substrate and defining a light transmission region and a light shielding region, and a phase inversion region formed on a predetermined portion of the light transmission region so as to allow exposure light to be transmitted therethrough with a phase of the light being inverted. In the method, a pattern of a semiconductor diode is exposed on a wafer by illuminating exposure light to the multi-transmission phase mask through a modified illumination system comprising at least two poles, each having a preset opening angle. According to the present invention, a defect wherein a pattern unit of a storage node contact pattern is not regularly opened on a wafer, or a defect wherein the pattern units are bridged to each other can be prevented from occurring.
摘要:
The body hair and feet drying chair is a seat comprising an upright base having a top portion, a middle portion, and a bottom portion, and a hollow interior. A seat is disposed on top of the base. At least one air outlet is defined in the seat in communication with the base's hollow interior. At least one air channel is defined in the bottom portion of the base in communication with the base's hollow interior. A motorized fan contained within the hollow interior of the base draws air into the hollow interior through the air channels and expels air from the hollow interior through the air outlets. Air expelled from the air outlets dries genital and posterior areas of a user seated on the body hair and feet drying chair, while air drawn into the air channels dries the user's feet and toes when the user's feet and toes are positioned over the air channels.
摘要:
Disclosed is a method of producing a polyethylene terephthalate-based polyester fiber, including spinning polyethylene terephthalate based polyester to produce an undrawn yarn with an intrinsic viscosity of 0.83 or more and a density of 1.338 g/cm3 or more, multi-stage drawing the undrawn yarn, heat-setting the drawn yarn, relaxing the heat-set yarn, and winding the relaxed yarn to produce the resulting drawn yarn with an intrinsic viscosity of 0.83 or more and a density of 1.38 to 1.3865 g/cm3. Compared to a prior polyester yarn with high modulus and low shrinkage, produced according to conventional melt-spinning and drawing processes, an industrial polyester yarn with high modulus and low shrinkage according to the present invention contributes to significantly improving strength retention (tenacity of a dip cord/tenacity of a grey yarn) of the dip cord, produced by treating the polyester yarn of the present invention with an adhesive (RFL) and subsequently heat-treating the RFL-treated polyester yarn. Therefore, the polyester multifilament yarn according to the present invention is useful as a tire cord.
摘要:
A system for aborting web services automatically and a method thereof are provided. In the system, an application program container has a first web service application program embedded, intercepts a message that is transmitted and received between a second web service program located externally and the first web service application program, identifies the kind of an operation requested by the second web service application program, and keeps information required for compensation. A protocol manager generates and manages a first sub-transaction object by a request of the second web service application program. A local compensator compensates the first sub-transaction if a global transaction coordinator that coordinates the state and success factor of a global transaction which is an upper-layer transaction of the generated first sub-transaction sends a command to compensate a second sub-transaction already committed. A protocol service unit transmits and receives messages for managing the first sub-transaction by communicating with the global transaction coordinator. A registration service unit registers the generated first sub-transaction with the global transaction coordinator.
摘要:
Provided are a self-aligned heterojunction bipolar transistor that can prevent electrical short-circuit caused by the agglomeration during the formation of a silicide electrode, minimize resistance by forming thick base electrodes, minimize the parasitic resistance of the base and parasitic capacitance between the base and the collector, and thus improve the process stability and economical efficiency by ruling out a wet-etching process and performing a selective thin film growing process once, and a manufacturing method thereof. The heterojunction bipolar transistor of this research includes: a collector and a collector electrode formed within a silicon substrate; base electrodes formed on the collector and including a protrusion having a first opening and a body having a second opening for exposing the surface of the collector; a base epitaxial layer grown selectively on the collector exposed thorough the first opening; sidewall spacers formed on the sidewalls of the second opening; an emitter electrode formed on the base epitaxial layer in the shape of an overhang that covers the sidewall spacers; and an insulation layer inserted between the overhang of the emitter electrode and the base electrodes and connected to the sidewall spacers.
摘要:
An LED surface light source is provided. The LED surface light source includes: an upper plate having a light emitting part for emitting an LED light and a reflector; a plurality of LEDs regularly arranged in horizontal and vertical directions; and a lower plate on which the plurality of LED are arranged and supported.
摘要:
Disclosed herein is a reactive sputtering deposition apparatus in which a partition plate is provided between a sputtering target and a substrate. The reactive sputtering deposition apparatus comprises a deposition chamber for creating an inner process atmosphere of the apparatus, a target including a metal material to be deposited, a substrate on which a reaction product of the metal material separated from the target with a reactive gas is deposited, and a partition plate dividing the deposition chamber into a reaction chamber at the side of the substrate and a sputtering chamber at the side of the target and provided between the target and the substrate, wherein an opening is formed through a central portion of the partition plate to allow the metal material separated from the target to reach the substrate. According to the reactive sputtering deposition apparatus, the transfer of the reactive gas to the metal target is minimized and thus the oxidation of the metal target is prevented, thereby enabling deposition of a metal oxide thin film on the substrate at a high rate. Further disclosed is a reactive sputtering deposition method using the apparatus.
摘要:
Disclosed is a projection system including: Red, Green Blue laser light sources; DMDs (Digital Micromirror Devices) for respectively displaying corresponding color images, by using Red, Green and Blue lights emitting from the laser light sources by electrical signals; a prism for synthesizing the color images displayed by the DMDs; first, second and third projection lens systems positioned between the DMDs and the prism; and a fourth projection lens system for magnifying and projecting the synthesized images.