Abstract: Disclosed is a magneto-rheological fluid composition which comprises magnetic particles, a fluid, a dispersant, a structure stabilizer and an anti-friction additive. Particularly, the magnetic particles include non-coated magnetic particles and polyvinyl butyral-coated magnetic particles at the weight ratio of about 1:1 to 4:1. Accordingly, dispersion stability and yield stress are improved substantially when magnetic field is applied to the magneto-rheological fluid.

Abstract: An input driver includes a power converting unit and a level adjusting unit. The power converting unit is configured to generate a first power and a second power having an anti-phase relationship based on input power, and process the first power and the second power as differential inputs to output a third power. The level adjusting unit is configured to adjust a voltage level of the third power and output the adjusted power as an input to a power amplifier.

Abstract: The invention provides a cold-proof grease composition for reducing noise. In certain embodiments, the invention provides a grease composition having an improved noise-reduction effect without sacrificing lubricant adhesiveness at high and low temperatures. In one embodiment, the grease composition comprises a synthetic hydrocarbon oil as a base oil, a lithium-based thickener, and a poly(methyl acrylate) (PMA)-based copolymer.

Abstract: An acoustic monitoring system has an acoustic front-end, a first signal path from the acoustic front-end directly to an audio transducer and a second signal path from the acoustic front-end to an acoustic data processor via an analog-to-digital converter. The acoustic front-end receives an acoustic sensor signal responsive to body sounds in a person. The audio transducer provides continuous audio of the body sounds. The acoustic data processor provides audio of the body sounds upon user demand.

Abstract: A physiological acoustic monitoring system receives physiological data from an acoustic sensor, down-samples the data to generate raw audio of breathing sounds and compresses the raw audio. The acoustic monitoring system has an acoustic sensor signal responsive to tracheal sounds in a person. An A/D converter is responsive to the sensor signal so as to generate breathing sound data. A decimation filter and mixer down-samples the breathing sound data to raw audio data. A coder/compressor generates compressed audio data from the raw audio data. A decoder/decompressor decodes and decompresses the compressed audio data into decompressed audio data. The decompressed audio data is utilized to generate respiration-related parameters in real-time. The compressed audio data is stored and retrieved so as to generate respiration-related parameters in non-real-time. The real-time and non-real-time parameters are compared to verify matching results across multiple monitors.

Abstract: Disclosed is a composition of brake fluid for a vehicle. The composition includes an amount of about 30 to 60 wt % of a boric ester compound; an amount of about 30 to 60 wt % of alkylene glycol alkyl ether; and an amount of about 0.05 to 10 wt % of oil soluble polyalkylene glycol (OSP), based on the total weight of the composition. Accordingly, the OSP-containing composition for brake fluid may decreases a moisture absorption amount of the brake fluid in the air and maintain a high boiling point of the brake fluid for a long period of time, thereby extending a period for changing brake fluid and improving corrosion prevention performance, metal wear prevention performance, and an operation of a master cylinder.

Abstract: A gear oil composition includes base oil including poly-alpha-olefin (PAO) synthetic oil in 70 to 95% by weight and oil-soluble polyalkylene glycol (OSP) synthetic oil in 5 to 30% by weight based on the weight of the base oil. The gear oil further includes a polyalkyl methacrylate-based Viscosity modifer in 5 to 20 parts by weight, based on 100 parts by weight of the base oil.

Abstract: A non-contact type power transceiving apparatus may include: a non-contact type power transmitting apparatus adjusting bias power setting a level of transmission power based on a request and transmitting one of a first power and a second power having a power level higher than that of the first power in a non-contact scheme; and a non-contact type power receiving apparatus requesting one of the first power and the second power from the non-contact type power transmitting apparatus and varying a set temperature level determining an abnormal state based on the requested power.

Abstract: A coil device may be capable of varying the gap of a coil so that several devices may be wirelessly charged simultaneously or a single device may be wirelessly charged with concentrated power. The coil device may include: a case having a reception space and varying a charging area upon a user's selection; and a coil part, having, in the reception space of the case, a coil body formed of a wound conductor having a predetermined length. A gap of the wound conductor of the coil body varies as the charging area of the case varies.

Abstract: There are provided a carrier substrate including: a first metal layer; a barrier layer formed on one surface of the first carrier metal layer; and a second metal layer formed on one surface of the barrier layer, and a method of manufacturing a printed circuit board using the same.

Abstract: A wireless power transmitter includes a case including a base plate and a structure disposed on the base plate; and a transmitting coil having a three-dimensional spiral shape disposed on a side surface of the structure and configured to generate a magnetic field in a direction perpendicular to the side surface of the structure.

Abstract: Disclosed is a manual transmission oil composition which include: (A) a polyalphaolefin (PAO) synthetic base oil in an amount of about 75 to 85 wt %; (B) an ester-based viscosity modifier in an amount of about 3 to 10 wt %; and (C) an additive in an amount of about 8 to 15 wt % which includes one or more of an anti-wear agent, a detergent dispersant, a friction modifier, an extreme pressure additive, and an anti-oxidant, based on the total weight of the manual transmission oil composition. Accordingly, the manual transmission oil composition may have a low viscosity as compared to conventional manual transmission oils, and may provide improvements in endurance of a transmission, reduction in a Rattle noise, and further improvement in fuel efficiency of vehicles by about 1 to 2%.

Abstract: Disclosed is a magneto-rheological fluid composition which comprises magnetic particles, a fluid, a dispersant, a structure stabilizer and an anti-friction additive. Particularly, the magnetic particles include non-coated magnetic particles and polyvinyl butyral-coated magnetic particles at the weight ratio of about 1:1 to 4:1. Accordingly, dispersion stability and yield stress are improved substantially when magnetic field is applied to the magneto-rheological fluid.

Abstract: There are provided a printed circuit board and a method of manufacturing the same. The printed circuit board according to an exemplary embodiment of the present disclosure includes: an insulating layer; a first circuit buried below the insulating layer and having a lower surface formed to be exposed from a lower surface of the insulating layer; a second circuit layer formed on the insulating layer; and a first solder resist layer formed below the insulating layer and the first circuit layer and formed to expose a portion of the first circuit layer.

Abstract: A coil device may be capable of varying the gap of a coil so that several devices may be wirelessly charged simultaneously or a single device may be wirelessly charged with concentrated power. The coil device may include: a case having a reception space and varying a charging area upon a user's selection; and a coil part, having, in the reception space of the case, a coil body formed of a wound conductor having a predetermined length. A gap of the wound conductor of the coil body varies as the charging area of the case varies.

Abstract: An electronic tag may include a wireless power receiving unit receiving power in a wireless power transmission scheme, a battery being charged with the power received from the wireless power receiving unit, a monitoring unit monitoring a power state of the battery, a display unit displaying information on the power state of the battery from the monitoring unit on a screen, and a first wireless communications unit wirelessly transmitting the information on the power state of the battery from the monitoring unit together with tag identification information in a first wireless communications scheme.

Abstract: Facilities for offshore liquefied natural gas (LNG) floating storage with jack-up platform regasification unit, the facilities including: a jack-up unit comprising legs which have bottom part to be fixable to a sea bed and top part to be exposed to a surface of water, and a hull to be movable up and down with respect to the legs; a storage unit moored at the jack-up unit providing a space for storing LNG; a regasification unit as a module which regasifies the LNG supplied from the storage unit, installed on a top portion of the jack-up unit, separable from the jack-up unit; a utility unit comprising a power source and a sea water pump to supply power and sea water to the regasification unit; and a piping unit comprising unloading pipe for connecting the regasification unit and the storage unit and supplying pipe for carrying natural gas gasified by the regasification unit.

Abstract: There are provided a non-contact power supply device and a non-contact power supply method, in which a short beacon is transmitted to recognize a power receiving device, a long beacon is transmitted to wake-up a communications circuit of the power receiving device, and charging power is transmitted in a contactless manner, wherein at least one of signal levels of the short beacon and signal levels of the long beacon is varied.

Abstract: A non-contact type power transmitting coil may include at least one conductor pattern disposed on at least one surface of a base having a predetermined area, having a plurality of turns, and transmitting received power externally in a non-contact manner. The intervals between at least some of adjacent pattern portions of the conductor pattern in a direction from a center portion of an inner diameter of the conductor pattern to an outermost pattern portion conductor pattern may be different from one another.

Abstract: There are provided a printed circuit board and a method of manufacturing the same. The printed circuit board according to an exemplary embodiment of the present disclosure includes: a substrate; a metal root layer formed by injecting and depositing metal particles into and on the substrate; and a circuit layer formed on the metal root layer.