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난질과 유생발생을 이용한 4개 멍게(Halocynthia roretzi) 어미계군 특성 비교
허영백 ( Young Baek Hur ),김은경 ( Eun Kyung Kim ),임영섭 ( Young Seob Lim ),전창영 ( Chang Young Jeon ),조기채 ( Kee Chae Cho ),명정인 ( Jeong In Myeng ) 한국수산과학회(구 한국수산학회) 2011 한국수산과학회지 Vol.44 No.5
To compare four populations of sea squirt Halocynthia roretzi adults, their egg quality and larval development were investigated in the hatchery. The populations were: south sea wild (SSW), south sea cultured (SSC), east sea wild (ESW) and Iwate Japan cultured (IJC). Egg quality and larval development were compared using 13 factors (fertilization rate and diameter, proximate composition, amino acid and fatty acid contents of eggs, hatching rate and various sizes of tadpole larvae) which were obtained from each population. Fertilized egg diameter, hatching rate and size of tadpole larvae were significantly different among the four populations (P<0.05). Eggs were produced with higher crude protein (5.20±0.00% SSW, 4.71±0.01% ESW, 4.66±0.01% SSC and 3.96±0.01% IJC) and lipid (1.22±0.01% ESW, 1.01±0.00% SSW, 0.77±0.01% SSC and 0.69±0.00% IJC,) contents from domestic wild populations than from Japanese or cultured populations. Also amino acid and fatty acid contents were different. The extent of similarity between domestic and Japanese populations (30.5% IJC:SSW, 34.3% IJC:SSC and 40.7% IJC:ESW) was relatively low but was very high between SSW and SSC (73.9%). These results may have been due to differences in the abundance of food types and environmental conditions in the four localities and consequent differences in the diets of the sea squirts.
이산화탄소 수송을 위한 압축 및 액화 공정 설계 및 비용 평가
양시엽 ( See Yub Yang ),이웅 ( Ung Lee ),임영섭 ( Young Sub Lim ),정영수 ( Yeong Su Jeong ),김정남 ( Jeong Nam Kim ),이차섭 ( Chi Seob Lee ),한종훈 ( Chong Hun Han ) 한국화학공학회 2012 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.50 No.6
이산화탄소 포집 및 저장 기술 중에서 수송 단계를 위한 전처리 과정인 초임계 압축 및 액화 공정에 대해서 압축 방 법에 따른 에너지와 그 때의 비용의 평가가 이루어졌다. 이산화탄소를 초임계상까지 직접 압축하는 경우(공정 1-1), 액 화 후 펌프로 초임계상을 만드는 경우(공정 1-2), 이산화탄소의 가압 팽창으로 액화하는 경우(공정 2), 다른 냉매를 사 용하면서 그 냉매를 가압, 팽창으로 얻는 경우(공정 3-1), 냉매를 흡수 냉각법으로 얻는 경우(공정 3-2), 캐스케이드 방법을 사용한 경우(공정 4)에 대해서 각각 공정 모사되었으며 그 때의 비용이 평가되었다. 비용은 $4~7/ton으로 추정된다. Energy and cost analysis of the preprocessing for carbon capture and storage transportation such as supercritical compression and liquefaction is done using chemical simulation model. Direct compression to supercritical phase (process 1-1), liquefaction and pumping (process 1-2), carbon dioxide compression and expansion as a refrigerant itself (process 2), usage of other refrigerant with compression and expansion (process 3-1), with absorption chiller (process 3-2), cascade refrigeration (process 3-2) have been simulated and evaluated. The specific cost is about 4 to 7 $/ton.