Abstract: A sitting posture determination device and a method thereof are proposed. The device includes a measurement data generation unit for generating measurement data composed of top portion measurement values and bottom portion measurement values for time points over time by receiving the top and bottom portion measurement values respectively input from top and bottom portion distance sensors, a correct posture determination unit for outputting a time point-specific top portion measurement value and bottom portion measurement value, which are out of a range preset for correct posture, by extracting the top and bottom portion measurement values from the measurement data and comparing the top and bottom portion measurement values with the range preset for the correct posture, and a posture classification unit for selecting and outputting any one of classification values corresponding to postures preset according to the top and bottom portion measurement values at each time point.

Abstract: The present invention relates to a heat dissipation apparatus for an electronic device. In particular, the heat dissipation apparatus comprises: a heat conduction panel body having formed therein a refrigerant flow space in which, while charged refrigerant changes in phase, gas-liquid circulation takes place; and an absorber which is disposed in the refrigerant flow space of the heat conduction panel body, and which distributes, while absorbing and holding the liquefied refrigerant of the refrigerant, the liquefied refrigerant in the direction of gravity or at least in a direction opposite to the direction of gravity, wherein, due to the material itself, the absorber prevents shape deformation in the direction of gravity even while maintaining the absorption rate for the liquefied refrigerant, and thus, provided is the advantage of greatly improving overall heat dissipation performance.

Abstract: Proposed are a method and an apparatus for inspecting weld quality using sensors and images. The method includes receiving a dataset consisting of sensor values from a sensor module that is installed in a welding device and measures at least one of voltage, current, and gas flow rate, determining defectiveness according to a number of sensor values smaller than a lower limit value based on the lower limit value calculated from an average of the sensor values included in the dataset, receiving, when the defectiveness is determined, an image of a weld bead corresponding to the dataset, detecting a region of interest corresponding to a weld bead in the image, calculating dimensions of horizontal and vertical lengths of the region of interest, and determining defectiveness depending on whether the dimensions of horizontal and vertical lengths of the region of interest exceed preset thresholds for the horizontal and vertical lengths.

Abstract: A highly selective carbon monoxide adsorbent and a method of preparing the highly selective carbon monoxide adsorbent are provided. The highly selective carbon monoxide adsorbent includes a boehmite or pseudo-boehmite in which a copper compound is dispersed.

Abstract: A method and system for upgrading and separating hydrocarbon are provided. The method may include preheating hydrocarbon containing impurities, removing non-hydrocarbon impurities from the hydrocarbon using a hydroprocessing catalyst and hydrogen gas after inserting the preheated hydrocarbon into a reactor, and separating gas from liquid.

Abstract: Disclosed is a method of removing organic acids from crude oil using a gas hydrate inhibitor and a catalyst in crude oil production facilities or oil-refining facilities, in which organic acids can be removed from crude oil by reacting the crude oil with mono-ethylene glycol (MEG), di-ethylene glycol (DEG), tri-ethylene glycol (TEG), methanol or derivatives thereof, as a gas hydrate inhibitor in the presence of a tungstophosphoric acid (TPA) catalyst, whereby the acidity of the crude oil can be lowered by 93% or more, and no catalyst deactivation occurs because magnesium (Mg)-based catalysts are not used. Furthermore, a continuous process is achieved in such a manner that the gas hydrate inhibitor and the catalyst are not discarded but are collected from the crude oil from which organic acids have been removed, and are thus recycled, thereby realizing environmentally friendly, economical and efficient removal of organic acids from crude oil.

Abstract: A highly selective carbon monoxide adsorbent and a method of preparing the highly selective carbon monoxide adsorbent are provided. The highly selective carbon monoxide adsorbent includes a boehmite or pseudo-boehmite in which a copper compound is dispersed.

Abstract: Disclosed is a method of removing organic acids from crude oil using a gas hydrate inhibitor and a catalyst in crude oil production facilities or oil-refining facilities, in which organic acids can be removed from crude oil by reacting the crude oil with mono-ethylene glycol (MEG), di-ethylene glycol (DEG), tri-ethylene glycol (TEG), methanol or derivatives thereof, as a gas hydrate inhibitor in the presence of a tungstophosphoric acid (TPA) catalyst, whereby the acidity of the crude oil can be lowered by 93% or more, and no catalyst deactivation occurs because magnesium (Mg)-based catalysts are not used. Furthermore, a continuous process is achieved in such a manner that the gas hydrate inhibitor and the catalyst are not discarded but are collected from the crude oil from which organic acids have been removed, and are thus recycled, thereby realizing environmentally friendly, economical and efficient removal of organic acids from crude oil.

Abstract: A method and system for upgrading and separating hydrocarbon are provided. The method may include preheating hydrocarbon containing impurities, removing non-hydrocarbon impurities from the hydrocarbon using a hydroprocessing catalyst and hydrogen gas after inserting the preheated hydrocarbon into a reactor, and separating gas from liquid.

Abstract: Disclosed are a method and a device for transmitting and receiving an aperiodic reference signal. The method for receiving an aperiodic reference signal comprises: allowing a reference signal receiving device to determine a radio resource area that can be calculated by environmental information from a first reference signal transmission device, and to transmit an aperiodic reference signal to the first reference signal transmission device by including first instruction information which instructs the aperiodic reference signal to be transmitted in the radio resource area; transmitting the aperiodic reference signal by including second instruction information which instructs a second reference signal transmission device, to which a periodic reference signal is to be transmitted in said radio resource area; and receiving the aperiodic reference signal from the first reference signal transmission device in the radio resource area.

Abstract: The present specification relates to a method and device for allocating uplink power in multiple-TA environments. The method comprises: calculating transmission powers of a PUSCH for subframe m of a first component carrier and subframes k and (k+1) of a second component carrier by using required powers of the PUSCH for the first half and second half of subframe m, which temporally overlaps with the second half of subframe k and the first half of subframe (k+1), available powers of the PUSCH for the first and second components carriers, and required powers of the PUSCH for the second half of subframe K and the first half of subframe (k+1) in a user equipment to which multiple TAs are applied; and setting the transmission power of the PUSCH for subframe m according to the calculated transmission powers and performing uplink transmission to a base station through the subframe m.

Abstract: A process and apparatus for separating an olefin from mixed gases containing light olefins is provided. The process includes adsorbing the olefin of an olefin-containing mixed gas in an adsorption column packed with an adsorbent selectively adsorbing the olefin; discharging gases other than the olefin through the outlet of the adsorption column; desorbing the adsorbed olefin by displacement using a desorbent, and separating the olefin from the desorbent, thereby producing a high-purity olefin. The apparatus includes adsorption columns packed with an adsorbent selectively adsorbing an olefin, and at least two distillation columns for separating an olefin/desorbent mixture and an olefin poor stream/desorbent into their components. If the olefin concentration of the off-gas from an olefin rinse step is higher than that of a raw material gas, recovering the olefin from the off-gas is carried out before or after the adsorption step.

Abstract: The present invention relates to an uplink power control method and apparatus and an uplink signal receiving method and apparatus using the same. According to an embodiment of the present invention, there is provided a method of receiving an uplink signal, the method of including selecting receiving points in a CoMP (Coordinated Multi-Point) system, transmitting CoMP setting information to UE, and receiving uplink transmission from the UE, wherein uplink transmission power used for the uplink transmission is controlled based on an effective path loss calculated by using at least one of path losses between the UE performing the uplink transmission and points in the CoMP system. According to the present invention, when uplink transmission power control is performed in the uplink CoMP system, path losses for a plurality of receiving points are reflected so that power control may be exactly done.

Abstract: Provided is a preparation method of an oxygen-selective adsorbent selectively adsorbing oxygen in the air and an oxygen-selective adsorbent prepared thereby. The preparation method includes: preparing BaMg(CO3)2 particles or particles in which MgCO3 or Mg(OH)2 are attached to the outside of BaMg(CO3)2; and sintering the particles at a high temperature. The oxygen-selective adsorbent according to the present invention may adsorb oxygen in the air at a fast rate as compared with an existing oxygen-selective adsorbent and have high thermal stability and excellent oxygen adsorptivity.

Abstract: A method and apparatus for concentrating and recovering ethylene from the off-gas from an apparatus which produces gasoline, propylene and the like by fluidized catalytic cracking (FCC) of heavy oils such as atmospheric residue, generated in a crude oil refining process, is provided. The method and apparatus can reduce the amount of ethylene rinse in the subsequent ethylene displacement desorption process by increasing the ethylene purity of a raw material gas and reducing the concentration of weakly adsorbing components in the raw material gas and can reduce the loss of a desorbent during a distillation process for separating the desorbent from the weakly adsorbing components. Thus, ethylene can be recovered from the off-gas from fluidized catalytic cracking of heavy oils at high concentration and low cost.

Abstract: An apparatus for separating carbon dioxide is provided. The apparatus includes: an absorption column in which carbon dioxide in off-gas is allowed to react with an absorbent solution so as to strip the carbon dioxide from the off-gas; a regeneration column in which the carbon dioxide is removed from the absorbent solution to regenerate the absorbent solution; and an ion-exchange column including a chamber having a cathode chamber space that receives the absorbent solution from the absorption column and an anode chamber space that receives the absorbent solution from the regeneration column, the ion-exchange column further including a permeable membrane that divides the chamber into the cathode chamber space and the anode chamber space.

Abstract: The present specification relates to a method and device for allocating uplink power in multiple-TA environments. The method comprises: calculating transmission powers of a PUSCH for subframe m of a first component carrier and subframes k and (k+1) of a second component carrier by using required powers of the PUSCH for the first half and second half of subframe m, which temporally overlaps with the second half of subframe k and the first half of subframe (k+1), available powers of the PUSCH for the first and second components carriers, and required powers of the PUSCH for the second half of subframe K and the first half of subframe (k+1) in a user equipment to which multiple TAs are applied; and setting the transmission power of the PUSCH for subframe m according to the calculated transmission powers and performing uplink transmission to a base station through the subframe m.

Abstract: The present invention relates to an uplink power control method and apparatus and an uplink signal receiving method and apparatus using the same. According to an embodiment of the present invention, there is provided a method of receiving an uplink signal, the method of including selecting receiving points in a CoMP (Coordinated Multi-Point) system, transmitting CoMP setting information to UE, and receiving uplink transmission from the UE, wherein uplink transmission power used for the uplink transmission is controlled based on an effective path loss calculated by using at least one of path losses between the UE performing the uplink transmission and points in the CoMP system. According to the present invention, when uplink transmission power control is performed in the uplink CoMP system, path losses for a plurality of receiving points are reflected so that power control may be exactly done.

Abstract: A method and apparatus for concentrating and recovering ethylene from the off-gas from an apparatus which produces gasoline, propylene and the like by fluidized catalytic cracking (FCC) of heavy oils such as atmospheric residue, generated in a crude oil refining process, is provided. The method and apparatus can reduce the amount of ethylene rinse in the subsequent ethylene displacement desorption process by increasing the ethylene purity of a raw material gas and reducing the concentration of weakly adsorbing components in the raw material gas and can reduce the loss of a desorbent during a distillation process for separating the desorbent from the weakly adsorbing components. Thus, ethylene can be recovered from the off-gas from fluidized catalytic cracking of heavy oils at high concentration and low cost.

Abstract: Provided is a preparation method of an oxygen-selective adsorbent selectively adsorbing oxygen in the air and an oxygen-selective adsorbent prepared thereby. The preparation method includes: preparing BaMg(CO3)2 particles or particles in which MgCO3 or Mg(OH)2 are attached to the outside of BaMg(CO3)2; and sintering the particles at a high temperature. The oxygen-selective adsorbent according to the present invention may adsorb oxygen in the air at a fast rate as compared with an existing oxygen-selective adsorbent and have high thermal stability and excellent oxygen adsorptivity.