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 apparatus including: a current source configured to generate current; a bias node coupled to the current source; a switching current source circuit coupled to the current source and the bias node to allow the current to flow through the switching current source circuit into the bias node; a biasing circuit configured to receive a control signal from a phase detector, and mirror the current flowing through the switching current source circuit in response to the control signal; and a switch device disposed between the switching current source circuit and the biasing circuit to isolate the switching current source circuit from the biasing circuit.

Abstract: An apparatus including: a current source configured to generate current; a switching current source circuit coupled to the current source and a first bias node to allow the current to flow through the switching current source circuit into the first bias node; a first bias circuit configured to receive a first control signal from a phase detector, the first bias circuit configured to mirror the current flowing through the switching current source circuit in response to the first control signal; a second bias circuit coupled to the first bias circuit at an output node and a second bias node, the second bias circuit configured to receive a second control signal from the phase detector; and a transconductance amplifier configured to receive a feedback signal from the output node and generate an output current to control the second biasing node.

Abstract: An apparatus including: a current source configured to generate current; a switching current source circuit coupled to the current source and a first bias node to allow the current to flow through the switching current source circuit into the first bias node; a first bias circuit configured to receive a first control signal from a phase detector, the first bias circuit configured to mirror the current flowing through the switching current source circuit in response to the first control signal; a second bias circuit coupled to the first bias circuit at an output node and a second bias node, the second bias circuit configured to receive a second control signal from the phase detector; and a transconductance amplifier configured to receive a feedback signal from the output node and generate an output current to control the second biasing node.

Abstract: A motion sensor network method for lighting in group units by using an infrared communication sensor according to the present invention comprises the steps of: sensing a first motion of a person or a vehicle by means of a first sensor module and turning on one lighting module; implementing infrared communication with another sensor module adjacent to the first sensor module and turning on another lighting module; maintaining the turning-on of the first lighting module and the other lighting module when the first sensor module or the other sensor module senses a second motion of the person or the vehicle; and turning off the first lighting module and the other lighting module when the first sensor module or the other sensor module fails to sense the second motion of the person or the vehicle for a certain time.

Abstract: The present disclosure discloses a system and method for allocating a communication identification (ID) associated with a position of a multi-battery management system (BMS). According to the system and method for allocating a communication ID according to the present disclosure, the communication ID associated with the position may be allocated to the multi-BMS quickly.

Abstract: A wireless power transmission device, a wireless power transmission control device, and a wireless power transmission method are provided. A coupling frequency between a source resonator and a target resonator is determined. A transmission frequency is controlled such that power is transmitted from the source resonator to the target resonator at the coupling frequency. Therefore, it is possible to maintain a high power transmission efficiency without using an additional matching circuit even when a distance between the source resonator and the target resonator is changed.

Abstract: Disclosed are a suspension fluid and a method for preparing the suspension fluid. Particularly, the suspension fluid is prepared by dispersing fumed silica particles in a solvent that includes one or more compounds selected from the group consisting of ethylene glycol and propylene glycol, and water. The phase-change suspension fluid obtained from the present invention is a shear thickening fluid that have a constant Newtonian behavior at a low rate of shear or a low frequency band, and further have a non-Newtonian behavior as a solid-like suspension at a high rate of shear or a high frequency band due to an increase in viscosity. In addition, the phase-change suspension fluid may reversibly change its phase with vibration of a vehicle, thereby providing advantages of both of the hydro bushes and the solid type bushes.

Abstract: A suspension fluid prepared by dispersing polyethylene oxide particles into a solvent including water and one or more types of compounds selected from the group consisting of ethylene glycol and propylene glycol, and a method for manufacturing the same. The phase-change suspension fluid can be a shear-thinning fluid showing a constant newtonian behavior in a low shear rate or low frequency region, but showing a non-newtonian behavior appearing as liquid-like suspension in a high shear rate or high frequency region due to viscosity decrease, and is capable of reversible phase changes by the vibration of a vehicle, and therefore, may provide effects of having advantages of a hydraulic bush in a low frequency region and also having advantages of a solid bush in a high frequency region.

Abstract: A carbon dioxide separation device has an absorption tower for receiving exhaust gas and configured to cause carbon dioxide, included in the exhaust gas, and an absorbent to react with each other. The separation device has a pressure reduction and phase separation unit to depressurize the CO2-rich-solution, and cause heat exchange between a lean solution and the CO2-rich-solution and separate a phase of the CO2-rich-solution into gas and liquid. In the separation device lean solution flows into the pressure reduction and phase separation unit, and the CO2-rich-solution undergoes a phase separation into gas and liquid due to heat of the lean solution, and then, flows into the stripping tower.

Abstract: Disclosed is a thermal reduction apparatus. The thermal reduction apparatus according to the exemplary embodiment includes: a preheating unit which preheats a to-be-reduced material and loads the to-be-reduced material into a reducing unit; the reducing unit which is connected to the preheating unit and in which a thermal reduction reaction of the to-be-reduced material occurs; a cooling unit which is connected to the reducing unit and from which the to-be-reduced material flowing into the cooling unit is unloaded to the outside; a gate device which is installed between the preheating unit and the reducing unit; a gate device which is installed between the reducing unit and the cooling unit; a condensing device which is connected to the reducing unit and condenses a metal vapor; a first blocking unit which is installed in the reducing unit; and a second blocking unit which is installed in the reducing unit so as to be spaced apart from the first blocking unit.

Abstract: Disclosed herein are a maritime communication apparatus and method. The maritime communication apparatus includes a land-based network communication unit, a maritime network communication unit, and a communication control unit. The land-based network communication unit communicates with a land-based communication network. The maritime network communication unit communicates with a maritime communication network. The communication control unit links the communication of the land-based network communication unit with the communication of the maritime network communication unit in accordance with a destination address of data provided by any one of the land-based network communication unit and the maritime network communication unit.

Abstract: Disclosed is an apparatus and method for estimating the battery state of health (SOH) to enable fast and easy SOH estimation of unused batteries. The apparatus for estimating the battery SOH according to the present disclosure corresponds to an apparatus for estimating a SOH of an unused battery, and includes a storage unit configured to store manufactured date information of the battery, an estimation date input module configured to receive an input of desired date information for SOH estimation of the battery, an elapsed day calculation module configured to calculate elapsed days between the manufactured date of the battery and the desired date for SOH estimation of the battery using the desired date information for SOH estimation and the manufactured date information of the battery, and a SOH estimation module configured to estimate the SOH of the battery using the elapsed days calculated by the elapsed days calculation module.

Abstract: The present disclosure relates to a molybdenum carbide catalyst used in a process for preparing hydrocarbons, in particular diesel-grade hydrocarbons, from biooils and fatty acids released therefrom through hydrodeoxygenation and a method for preparing same.

Abstract: Locking multiple VCOs to generate a plurality of LO frequencies, including: receiving a plurality of divided VCO feedback signals from a plurality of VCOs; receiving a reference signal multiplied by a predetermined number of the plurality of VCOs; generating and processing the predetermined number of phase differences between the multiplied reference signal and the plurality of divided VCO feedback signals in a single PLL circuit including a digital loop filter to receive and process the phase differences and generate (produce) a filter output, wherein the digital loop filter includes a plurality of delay cells equal to the predetermined number; and generating and outputting (delayed) control voltages for the plurality of VCOs based on the filter output.

Abstract: The present disclosure discloses a system and method for allocating a communication identification (ID) associated with a position of a multi-battery management system (BMS). According to the system and method for allocating a communication ID according to the present disclosure, the communication ID associated with the position may be allocated to the multi-BMS quickly.

Abstract: Disclosed is a communication terminal for constructing a daisy chain communication network without distinction between an input connector and an output connector.

Abstract: Disclosed is an apparatus and method for managing a battery that may manage a surrounding environment and a usage history of the battery. The battery management apparatus senses a temperature of an environment to which the battery is exposed, and stores a period of time during which the battery is exposed to a high temperature when the sensed temperature corresponds to a preset first or second area. In this instance, the battery management apparatus may determine whether the battery is simply exposed to the high temperature or the battery is charged or discharged while exposed to the high temperature, and store a usage time together. According to the present disclosure, information about a time domain affecting the life or performance of the battery may be calculated in consideration of the temperature environment to which the battery is exposed.

Abstract: Locking multiple VCOs to generate a plurality of LO frequencies, including: receiving a plurality of divided VCO feedback signals from a plurality of VCOs; receiving a reference signal multiplied by a predetermined number of the plurality of VCOs; generating and processing the predetermined number of phase differences between the multiplied reference signal and the plurality of divided VCO feedback signals in a single PLL circuit including a digital loop filter to receive and process the phase differences and generate (produce) a filter output, wherein the digital loop filter includes a plurality of delay cells equal to the predetermined number; and generating and outputting (delayed) control voltages for the plurality of VCOs based on the filter output.

Abstract: Disclosed is a method for preparing a semi-furanic copolyamide containing at least one furanic dicarboxylic acid moiety and at least one aliphatic diamine moiety in the backbone. The method is based on solid-state polymerization. Particularly, the method uses a biomass-derived furanic dicarboxylic acid as a raw material. A semi-furanic copolyamide prepared by the method has molecular weight and color levels that are practically required in industrial applications. In addition, the semi-furanic copolyamide can replace fossil fuels due to its good thermal stability and is suitable for use as an environmentally friendly bioplastic.