Abstract: A semiconductor integrated circuit includes a first internal voltage generator including a PMOS and a first comparator, and a second internal voltage generator including an NMOS, a second comparator, and a voltage pump generator configured to provide a pumping power voltage to the second comparator. A power control circuit switchably enables an output from the first internal voltage generator during a power-on of the semiconductor integrated circuit and enables an output from the second internal voltage generator after the power-on.

Abstract: The fluid dynamic bearing assembly of including: a sleeve formed to have a hollow into which a shaft is inserted; a sleeve housing formed to insert the sleeve therein; a bypass passage formed to axially communicate the upper portion and the lower portion of the sleeve between the sleeve and the sleeve housing and dispersing pressure of a lubricating fluid in the hollow; an oil sealing cap having an oil passage communicated with the bypass passage and taper-sealing the lubricating fluid within the oil passage; and a thrust plate formed to have a hole corresponding to a shape of the outer peripheral surface of the shaft and axially disposed under the sleeve.

Abstract: There are provided a chip resistor and a method of manufacturing the same. The chip resistor includes a ceramic substrate; an adhesion portion formed on a surface of the ceramic substrate; and a resistor formed on the adhesion portion, wherein the adhesion portion includes at least one of copper (Cu), nickel (Ni), and copper-nickel (Cu—Ni).

Abstract: A scaffold for tissue regeneration is provided. In a preferred embodiment, the scaffold is implantable in a patient in need of nerve or other tissue regeneration and includes a structure which has a plurality of uniaxially oriented nanofibers made of at least one synthetic polymer. Preferably, at least 75% of the nanofibers are oriented within 20 degrees of the uniaxial orientation. The scaffold beneficially provides directional cues for cell and tissue regeneration, presumably by mimicking the natural strategy using filamentous structures during development and regeneration.

Abstract: An array speaker system canceling non-uniform radiation patterns and a method for implementing the same are provided. The method for canceling non-uniform radiation patterns includes predicting radiation patterns in an array speaker with respect to input signals, generating cancellation signals with respect to at least one region corresponding to non-uniform radiation patterns of the predicted radiation patterns, synthesizing the input signals and the cancellation signals, and outputting the synthesized signals to the array speaker. Sound signals from which non-uniform radiation patterns having distorted sound are cancelled such that a stable sound field having uniform radiation characteristics may be obtained and provided to a listener.

Abstract: In one aspect, films that can serve as a model or mimic for the basal lamina are described herein. In some embodiments, a film described herein comprises a top surface and a bottom surface in facing opposition to the top surface, wherein the film is formed from Type I collagen and one or more additional extracellular matrix proteins. The additional extracellular matrix proteins, in some cases, comprise one or more of Type IV collagen, laminin, and fibronectin. Moreover, in some instances, the weight ratio of Type I collagen to the additional extracellular matrix proteins in the film is at least about 40:1.

Abstract: A method and apparatus for compensating for a near-field effect in a speaker array system is provided. The method includes generating a virtual sound signal at a position, which is separated from a speaker array by a predetermined distance, based on an input sound signal, and outputting the generated virtual sound signal using the speaker array. Therefore, the near-field effect, in which a sound radiated from a speaker array is distorted to have non-uniform radiation characteristics near the speaker array, can be compensated for. Consequently, the method and apparatus can provide a stable sound field, into which non-uniform radiation characteristics uniformly converge, to a listener.

Abstract: The spindle motor includes a rotating shaft and a sleeve. The rotating shaft has a stepped portion in a fluid dynamic pressure shafting system. The sleeve is fitted over the circumferential outer surface of the rotating shaft. A sleeve recess is formed in the inner surface of the sleeve so that the edges of the stepped portion are spaced apart from the sleeve.

Abstract: There are provided a mold for manufacturing a sleeve capable of improving product quality by preventing damage in an edge of a mold used for manufacturing a sintered type sleeve, and a sleeve manufactured by using the same. The mold includes: a housing mold having a hollow part formed therein, a closed lower end, and a pillar standing at a center thereof in order to form a shaft hole of a sleeve; and a pressing mold pressing sintering powder after the housing mold is filled with the sintering powder, thereby allowing the sintering powder to be sintered in a sleeve shape, wherein the pressing mold has an outer inclined surface formed along an edge portion of an outer diameter of a front end thereof and a step portion formed at an outermost portion of the outer inclined surface.

Abstract: An exhaust manifold includes: an inlet portion which collects exhaust gas discharged through a first to a fourth exhaust ports; an outlet portion discharging the exhaust gas; and a tube portion connecting the inlet and the outlet portions. The inlet portion comprises: a first inlet portion one end of which communicates with the first and the second exhaust ports; and a second inlet portion one end of which communicates with the third and the fourth exhaust ports. Since the inlet portion is provided as two considering the combustion sequence, the productability and the economic feasibility can be enhanced, and the surrounding space can be enlarged to enhance the workability, and a simple exterior appearance can be obtained, and interference between exhaust gases can be effectively prevented, and since the size of the exhaust manifold can be increased, an engine load can be reduced to improve the fuel mileage.

Abstract: Provided are a method, medium and apparatus for enhancing an acoustic signal using an auditory property. An acoustic signal is enhanced by generating a plurality of harmonic signals based on a predetermined acoustic signal frequency, selecting harmonic signals, which exist in an area masked by the predetermined harmonic signal, from among the generated plurality of harmonic signals, and outputting harmonic signals remaining after excluding the selected harmonic signals from the generated plurality of harmonic signals. The enhancement results in a bass signal of good sound quality and having a low distortion ratio, without changing the structure of a micro speaker.

Abstract: There are provided a hydrodynamic bearing assembly capable of increasing a storage amount of oil and preventing evaporation or leakage of the oil by increasing a length of a sealing part, and a motor including the same. The hydrodynamic bearing assembly includes: a sleeve supporting a shaft such that an upper end of the shaft protrudes upwardly in an axial direction; a sleeve housing provided to enclose an outer peripheral surface of the sleeve, and forming an oil interface between an inner peripheral surface thereof in an outer diameter direction and a main wall part protruding downwardly in the axial direction from a rotor case inserted into the upper end of the shaft; and a cover member provided in lower portions of the shaft and the sleeve and coupled to the sleeve housing while having a clearance therebetween.

Abstract: Disclosed is a method for manufacturing a soundproofing material by finely crushing a discarded car seat, mixing the crushed car seat with polyester fiber, low-melting polyester fiber such as LM PET, polypropylene fiber and hemp, and carding the resulting mixture, and a soundproofing material composition prepared thereby. The disclosed method allows recycling of polyurethane foam of the discarded car seat into a soundproofing material composition having superior appearance quality and soundproofing performance. The disclosed method also prevents generation of excessive static electricity and allows preparation of a soundproofing material with smooth surface.

Abstract: A method and apparatus for ultrasound diagnosis that reduces interference and restores missed signals, is provided. The method of ultrasound diagnosis includes operations of receiving a Doppler signal having at least one gap; respectively obtaining model parameter sets of first and second Doppler signals by using Doppler signal periods before and after a start of the at least one gap; synthesizing first and second Doppler information by respectively using the model parameter sets of the first and second Doppler signals; and generating Doppler information for the at least one gap by cross-fading the synthesized first and second Doppler information. The apparatus includes a transformer for transforming received I and Q signals into stereo audio signals using a Hilbert transform; and a source separator which removes interference from the stereo audio signals by performing source separation on the stereo audio signals.

Abstract: There is provided a motor including: a stationary member including a core having a coil wound therearound and generating rotation force; and a rotating member including a magnet facing the coil so as to be rotatable with respect to the stationary member, wherein the rotating member rotates while descending by thrust dynamic pressure directed downwardly in an axial direction and generated in the rotating member when power is applied to the coil.

Abstract: Disclosed herein is a spindle motor including a rotating part including a rotating shaft, a hub, and a magnet and a fixing part including a sleeve supporting the rotating shaft and an armature opposite to the magnet, wherein a working fluid is injected between the rotating shaft and the sleeve so as to form a fluid dynamic bearing part, and the sleeve is as a sintered sleeve by sintering and a top and a bottom of an inner peripheral surface of the sleeve is protruded toward the rotating shaft, whereby the spindle motor improving dynamic pumping capability and extending a span of a radial bearing part to a top end and a bottom end of the sleeve as compared with the spindle motor according to the prior art can be provided.

Abstract: A method of removing a vocal signal is provided, the method including: extracting a difference signal between an input left signal and an input right signal of a stereo signal; obtaining left panning information of the input left signal from the input left signal, and right panning information of the input right signal from the input right signal; and generating an output left signal by applying the left panning information to the difference signal, and an output right signal by applying the right panning information to the difference signal.

Abstract: Provided is novel use of CA-125. As it is discovered that CA-125 level are positively associated with bone mineral density, thereby CA-125 can be used in biomarker to diagnose osteoporosis or osteopenia, or extent of growth plate development.

Abstract: Disclosed herein is a highly-durable electrode tool for electrochemical machining, which can prevent the corrosion and abrasion of a conductive pattern at the time of electrochemical machining for forming dynamic pressure-generating grooves of a fluid dynamic bearing, and a method of manufacturing the same. The electrode tool for electrochemical machining includes: an electrode substrate on which a conductive pattern is formed to have protrusions corresponding to the fine grooves and to which negative current is applied; a nonconductive insulating layer, covering an entire top surface of the electrode substrate excluding the conductive pattern; and a conductive layer, which is formed on the conductive pattern to protect the conductive pattern, and a top surface of which is the same height as a top surface of the nonconductive insulating layer.

Abstract: Provided are a method and apparatus for audio bass enhancement using stereo speakers. By filtering a baseband signal of an input signal whose frequency is lower than a blocking frequency calculated based on the distance between first and second speakers, delaying the filtered signal for a predetermined time period, combining a signal component of the input signal output from the first speaker and a signal component of the delayed signal output from the first speaker and making the combined signal component correspond to the first speaker, and combining a signal component of the input signal output from the second speaker and a signal component of the delayed signal output from the second speaker and making the combined signal component correspond to the second speaker, deep and rich audio bass can be provided by a simple operation without structural modification of speakers with respect to micro speakers in which audio bass reproduction is not conventionally performed efficiently.