Abstract:
PURPOSE: A transalkylation catalyst for producing mixed xylene from aromatic compounds containing sulfur impurities is provided to obtain a sulfur resistance function and a hydrogenation function. CONSTITUTION: A transalkylation catalyst includes a zeolite carrier and a noble metal, a second metal, and a third catalytic component carried in the carrier. The noble metal is selected from a group consisted of Pt, Pd, Au, and Ru. The second metal is cobalt or molybdenum. The third catalytic component is nickel phosphite (Ni2P), tungsten carbide, molybdenum sulfide, or a mixture thereof. [Reference numerals] (AA) Yield of mixed xylene (%); (BB) Time (hr); (CC) Example 1; (DD) Example 2; (EE) Example 3; (FF) Example 6
Abstract:
PURPOSE: A surface lighting device integrates a light guide panel and a diffusing element, and thus implements simplification of structure. CONSTITUTION: An optical source section comprises multiple LEDs. A light guide panel (120) guides light coming out from the optical source section. A reflecting mirror element (130) reflects light incoming from the light guide panel is reflected. The reflecting mirror element reenters the reflected light into the light guide panel. A diffusing element (140) diffuses light coming out from the light guide panel.
Abstract:
본 발명은 냉각장치가 구비된 LED 조명 장치에 관한 것이며, 상세하게는 열분포도가 높은 쪽으로 공기가 더 많이 유동되도록 하여 발광부의 냉각효율을 향상시킬 수 있는 냉각장치가 구비된 LED 조명 장치에 관한 것이다. 본 발명의 일 실시예에 따른 냉각장치가 구비된 LED 조명 장치는 전원인가시 발광되는 LED 소자가 구비된 발광부; 발광부 상에 구비되어, 발광부의 발광시 발광부에서 발열된 열을 전달받아 LED 소자의 발열면적보다 넓은 면적으로 열이 분산되도록 제공된 열분산부; 열분산부 상에 구비되어, 열분산부로 공기를 제공토록 제공된 공기공급부; 및 열분산부와 공기공급부 사이에 위치되어, 공기공급부에서 토출된 공기가 열분산부로 분산되도록 제공된 공기분산부를 포함하는 것이 바람직하다.
Abstract:
본 발명은 핀홀 검출 장치 및 방법에 관한 것으로, 상기 핀홀 검출 장치는 강판을 통과한 광의 세기를 검출한 영상을 제공하는 하나 이상의 카메라; 캘리브레이션을 위해 획득한 핀홀 크기 기준 데이터 테이블을 저장하는 캘리브레이션부; 및 상기 강판의 영상으로부터 획득한 핀홀 영상의 위치값 및 크기와 상기 핀홀 크기 기준 테이블을 이용하여, 핀홀 크기를 추정하는 핀홀 검출부를 포함하고, 상기 핀홀 크기 기준 테이블은 핀홀 크기 각각에 대응하는 핀홀 영상의 위치값 및 크기를 이용하여 구성되는 것을 특징으로 한다.
Abstract:
PURPOSE: A construction module and a joint structure thereof are provided to enable the re-use and re-alignment of the construction module by easily coupling and decoupling connection members. CONSTITUTION: A joint structure(200) of a construction module comprises an upper construction module(210), a lower construction module(230), and a connection member(250). A first insertion groove(111) is formed on the bottom surface of the upper construction module, and a first end plate(120) is coupled to the bottom end of the upper construction module. A second insertion groove(131) is formed on the top surface of the lower construction module, and a second end plate(140) is coupled to the top end of the lower construction module. The second end plate touches the first end plate. The first and second end plates are inserted into the connection member to connect the upper and lower construction modules to each other.
Abstract:
PURPOSE: An apparatus for eliminating moisture from biogas is provided to prevent the clogging phenomenon and/or the freezing and bursting phenomenon of a pipeline by eliminating moisture from biogas. CONSTITUTION: An apparatus(100) for eliminating moisture from biogas is composed of a pipeline(110) and a condensing part(120). The pipeline connects an anaerobic digesting bath and a gas storing bath, and biogas flows through the pipeline. The pipeline is upwardly slanted from the upper part of the anaerobic digesting bath and is downwardly curved. The condensing part is formed in the pipeline to be adjacent to the upper part of the anaerobic digesting bath. Moisture in the biogas is condensed to be eliminated by external air in the condensing part.
Abstract:
PURPOSE: An anaerobic digestion bath is provided to reduce the generation of scum and to accelerate the conversion of organic waste into organic acid by keeping the pH value of a first reactor low. CONSTITUTION: An anaerobic digestion bath(10) is composed of a first reactor(20), a second reactor(30), a flow path(40), a first sensor part(24), and an opening and closing adjusting part(50). The first reactor generates organic acid from organic waste. The second reactor is connected to the first reactor and methane-ferments the organic acid. The flow path is installed between the reactors. The first sensor part is installed at the first reactor and measures the pH value of the organic waste. The opening and closing adjusting part adjusts the opening and closing area of the flow path according to the pH value of the first reactor.
Abstract:
PURPOSE: Heating method and system for an agricultural facility using bio gas and a heat accumulator are provided to maximize energy efficiency of the agricultural facility. CONSTITUTION: A heating method for an agricultural facility using bio gas and a heat accumulator comprises the following steps: fermenting organic waste in an anaerobic digestion tank to obtain the bio gas; removing impurities from the bio gas, and separating methane and carbon dioxide from the bio gas(30); supplying the carbon dioxide to an agricultural facility selected from a greenhouse, a glass greenhouse, or a plastic greenhouse, and supplying the methane to a power generator to produce heat and electricity; heating the agricultural facility using the heat from the power generator or solar heat, and storing the remaining heat in the heat accumulator; and heating the agricultural facility using the heat stored in the heat accumulator. [Reference numerals] (30) Separating and refining biogas; (40) CO2 supplier; (50) Summer time : storing excessive heat from a power generation process, and using the heat during the winter time; (60) Winter time : : storing excessive heat, and directly using the heat; (70) Summer time : excessive solar heat; (80) Glass greenhouse; (AA) Methane gas; (BB) Carbon dioxide
Abstract:
PURPOSE: A heat exchanger is provided to initially eliminate foreign materials formed on a fluid pipe by forming vortexes in high-temperature first fluid flowing through a vortex forming unit. CONSTITUTION: A heat exchanger(100) comprises a main body, a fluid pipe, and a vortex forming unit(140). The main body comprises a first fluid inlet(122) and a first fluid outlet(124). First fluid flows into the main body through the first fluid inlet and is discharged to the outside through the first fluid outlet. The fluid pipe is installed in the main body. Second fluid, heat-exchanged with the first fluid in the main body, circulates through the fluid pipe. The vortex forming unit is foremd in the first fluid inlet and eliminates foreign materials on the fluid pipe by forming vortexes in the first fluid flowing into the main body.
Abstract:
802.16/와이브로 시스템에서의 셀간 간섭을 줄이기 위해서 FRF-1 구역(zone)과 FRF-3 구역을 사용하는 환경에서의 가입자국(SS; Subscriber Station)들에게 각 구역의 트래픽 부하를 기반으로 해서 서비스해 줄 구역을 변경해 주는 방법이 개시된다. 이를 위한 본 발명은, 802.16/와이브로 시스템 환경에서 하나의 셀에 존재하는 가입자국(SS; Subscriber Station)들의 분배(distribution) 및 트래픽 부하(traffic load)를 바탕으로 해서 하나의 프레임 내에 FRF-1 구역(셀에서의 모든 사용자들이 모든 서브채널을 사용가능한 구역)과 FRF-3 구역(하나의 셀 영역을 3개의 섹터 단위로 나누고 해당 환경에서의 가능한 채널도 전체의 1/3씩 나눠서 사용하는 구역)중 어느 구역을 통해서 서비스를 제공할지 결정하여 서비스를 제공함으로써 셀간 간섭을 최소화하고 셀의 커패시티(capacity)와 셀 내에서의 사용자들의 전송 품질을 높일 수 있도록 한 802.16/와이브로 시스템에서의 셀간 간섭을 고려한 부하 기반의 서비스 구역 변경 방법에 관한 것이다.