Abstract: The present disclosure relates to an optical unit including a tubular member, which accommodates a plurality of optical fibers and whose shape is variable to achieve an optimal space factor, to minimizes optical loss or the deterioration of optical properties when the optical cable is bent or compressed or external impact is applied, secure waterproof performance, and minimize an outer diameter, and an optical cable including the same.

Abstract: A method for preparing hydrogen from ammonia by using pressure swing adsorption (PSA) is provided. The method for preparing hydrogen from ammonia, of the present invention, comprises the steps of: generating hydrogen and nitrogen from ammonia gas through a high-temperature reaction by using a catalyst; performing purification by selectively adsorbing unreacted ammonia gas from a gas containing unreacted ammonia and low-purity hydrogen and nitrogen, which are supplied through the high-temperature reaction and cooled; and performing purification by separating high-purity hydrogen from the gas consisting of low-purity hydrogen and nitrogen, wherein purification is carried out by using a carbon molecular sieve (CMS) adsorbent so as to desorb the unreacted ammonia gas through PSA.

Abstract: A method of a first terminal may include: identifying first RB set(s) to be used for SL communication among consecutive RB sets through an LBT procedure; identifying a first subchannel group included in the first RB set(s) and a second subchannel group including a first PRB in the first RB set(s), the first PRB being not included in the first subchannel group; configuring the first PRB within the second subchannel group as an SL communication resource; and transmitting, to a second terminal, control information indicating that the first PRB is configured as the SL communication resource.

Abstract: An optical and electrical composite multimedia cable including: an optical unit including a plurality of optical fibers and an optical-fiber protective layer, the optical-fiber protective layer formed by filling gaps between the optical fibers with curable resin and covering outer sides of the optical fibers with the curable resin and then curing the curable resin; a plurality of conductor units each including a conductor and an insulator covering the conductor; and an outer jacket provided around the optical unit and the conductor units.

Abstract: An optical and electrical composite multimedia cable including: an optical unit including a plurality of optical fibers and an optical-fiber protective layer, the optical-fiber protective layer formed by filling gaps between the optical fibers with curable resin and covering outer sides of the optical fibers with the curable resin and then curing the curable resin; a plurality of conductor units each including a conductor and an insulator covering the conductor; and an outer jacket provided around the optical unit and the conductor units.

Abstract: Disclosed is a method for producing a silver (Ag) coating pigment. The method for producing a silver coating pigment according to the present invention comprises: a step of forming a tin compound pretreatment layer on the matrix surface; and a step of forming a silver coating layer on the lower portion of the tin compound pretreatment layer through a reflux and electroless plating process using a diluted solution of silver nitrate, ammonia water, a citric acid solution, and a diluted solution of potassium hydroxide.

Abstract: Disclosed is a method for producing a silver (Ag) coating pigment. The method for producing a silver coating pigment according to the present invention comprises: a step of forming a tin compound pretreatment layer on the matrix surface; and a step of forming a silver coating layer on the lower portion of the tin compound pretreatment layer through a reflux and electroless plating process using a diluted solution of silver nitrate, ammonia water, a citric acid solution, and a diluted solution of potassium hydroxide.

Abstract: A process and device to capture of CO2 at its originating source, such as a power plant, is disclosed. Absorbent material is recharged by desorbing CO2, so that it may be sequestered or used in another application. Continual recharging results in loss of absorbent surface area, due to pore plugging and sintering of particles. Calcium oxide or calcium hydroxide was immobilized to a fibrous ceramic-based fabric substrate as a thin film and sintered, creating an absorbent material. The samples were characterized, showing continuous cyclic carbonation conversions between about 62% and 75% under mild calcination conditions at 750° C. and no CO2 in N2. Under the more severe calcination condition at 850° C. and 20 wt % CO2 in N2, yttria fabric was superior to alumina as a substrate for carbon dioxide capture and the reactivity of the calcium oxide absorbent immobilized to yttria was maintained at the same level in the 12 cycles.

Abstract: An apparatus and method for wet pre-treatment of an effluent gas derived from upstream semiconductor or LCD manufacturing tools before the effluent gas is processed in an effluent gas treatment system in provided. The apparatus comprises an atomizing spray nozzle for atomizing a reagent and a processing section in which the effluent gas in pre-treated with the atomized reagent using a cyclone method. The processing section comprises an inner tubular portion and an outer tubular portion. The processing section has an effluent gas inlet, a reagent inlet, an effluent gas outlet, and a waste liquid outlet. An apparatus is also provided which includes a plurality of wet pre-treatment units, each of which pre-treat each of effluent gas streams derived from a plurality of CVD chambers.