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도시 하천의 수질특성에 관한 연구 ( 제1보 ) - 중랑천을 (中浪川) 중심으로 -
한상욱,홍사욱 ( Sang Wook Han,Sa Uk Hong ) 한국하천호수학회 1985 생태와 환경 Vol.18 No.3·4
The Chungryang-stream is one of the tributaries of the Han-river which flows through the north-eastern part of Seoul city which is the largest one in Korea. The total length of the stream is 102.2 kilometers (main stream: 42.2 kilometers, its branch: 60 kilometers) and the study area is about 239 square kilometers with the population of 1.8 million. Major sources of pollution on the stream in study area are both of industrial and domestic waste water, which adversely affect the water quality of the down stream of the Han-river. The water quality measured by BOD_5 of the upstream of Chungryang-stream was about 7.0 milligrams per liter. However passing through the area of the Euijungbu, the water quality measured by BOD_5 was showing high concentration as about 40 milligrams per, liter due to the sewage from the Euijungbu city and the highly polluted water of Paeksuk-stream. No significant seasonal changes in DO concentration are shown in main stream except upstream and the ratio of T. coli/F. coli is 3. 4 in the upstream, 1. 6 in the midstream and 2.3 in the downstream. COD values of sediments range from 3. 0 to 384. 9 milligrams per liter and it is found a wide viriation of the values owing to the rainfall.
Hypoallergenic and Physicochemical Properties of the A2 β-Casein Fraction of Goat Milk
Tae-Hwan Jung,Hyo-Jeong Hwang,Sung-Seob Yun,Won-Jae Lee,Jin-Wook Kim,Ji-Yun Ahn,Woo-Min Jeon,Kyoung-Sik Han2.6* 한국축산식품학회 2017 한국축산식품학회지 Vol.37 No.6
Goat milk has a protein composition similar to that of breast milk and contains abundant nutrients, but its use in functional foods is rather limited in comparison to milk from other sources. The aim of this study was to prepare a goat A2 β-casein fraction with improved digestibility and hypoallergenic properties. We investigated the optimal conditions for the separation of A2 β-casein fraction from goat milk by pH adjustment to pH 4.4 and treating the casein suspension with calcium chloride (0.05 M for 1 h at 25°C). Selective reduction of β- lactoglobulin and αs-casein was confirmed using sodium dodecyl sulphate-polyacrylamide gel electrophoresis and reverse-phase high-performance liquid chromatography. The hypoallergenic property of A2 β-casein fraction was examined by measuring the release of histamine and tumor necrosis factor alpha from HMC-1 human mast cells exposed to different proteins, including A2 β-casein fraction. There was no significant difference in levels of both indicators between A2 β-casein treatment and the control (no protein treatment). The A2 β-casein fraction is abundant in essential amino acids, especially, branched-chain amino acids (leucine, valine, and isoleucine). The physicochemical properties of A2 β-casein fraction, including protein solubility and viscosity, are similar to those of bovine whole casein which is widely used as a protein source in various foods. Therefore, the goat A2 β-casein fraction may be useful as a food material with good digestibility and hypoallergenic properties for infants, the elderly, and people with metabolic disorders.
Environmental Management in Industry
Han, Sang Wook,Kim, Ik Soo,Terence P. CURRAN 한국환경정책학회 1995 環境政策 Vol.3 No.1
환경문제를 야기시키는 원인은 인간 그 자체에 있으며, 경제주체별로는 개인, 기업, 정부로 볼 수 있다. 시시각각 변화하고 강화되여가는 국제환경질서에 대처하기 위해서는 기업과 정부가 협조적인 관계를 유지하면서 각각의 역할을 하여야하는 바, 기업은 사회공헌책임주의에 입각하여 환경친화책인 기업경영을 도입, 실천해야 하며, 정부는 이를 지원, 촉진하기 위한 정책을 펼쳐야 할 것이다. 이 논문은 지구차원에서의 환경문제, 미국과 한국의 최근 환경정책 그리고 기업에서의 환경경영도입의 중요성과 환경경영이 모든 조직기능에서 통합 고려되어야 하는 필요성올 논의하였으며, 기업의 환경경영을 위한 환경성과지표, 환경심사, 전과정분석 등의 요소들을 검토하였다. 끝으로 3M, Body Shop, Baxter International 둥 3개 기업에 있어서의 환경경영의 사례를 동해 환경경영에 의한 기업이익을 엿볼 수 있었다.
A Face Tracking Algorithm for Multi-view Display System
Han, Chung-Shin,Go, Min Soo,Seo, Young-Ho,Kim, Dong-Wook,Yoo, Ji-Sang The Institute of Electronics and Information Engin 2013 IEIE Transactions on Smart Processing & Computing Vol.2 No.1
This paper proposes a face tracking algorithm for a viewpoint adaptive multi-view synthesis system. The original scene captured by a depth camera contains a texture image and 8 bit gray-scale depth map. From this original image, multi-view images that correspond to the viewer's position can be synthesized using geometrical transformations, such as rotation and translation. The proposed face tracking technique gives a motion parallax cue by different viewpoints and view angles. In the proposed algorithm, the viewer's dominant face, which is established initially from a camera, can be tracked using the statistical characteristics of face colors and deformable templates. As a result, a motion parallax cue can be provided by detecting the viewer's dominant face area and tracking it, even under a heterogeneous background, and synthesized sequences can be displayed successfully.
Han, Jung Min,Park, Sang Gyu,Liu, Bei,Park, Bum-Joon,Kim, Jin Young,Jin, Cheng He,Song, Yeong Wook,Li, Zihai,Kim, Sunghoon Elsevier 2007 The American journal of pathology Vol.170 No.6
<P>Aminoacyl-tRNA synthetase-interacting multifunctional protein 1 (AIMP1; previously known as p43) is a multifunctional protein that was initially found in multitRNA synthetase complex. In the present study, screening of the AIMP1-binding proteins revealed that AIMP1 can form a molecular complex with heat shock protein gp96. AIMP1 enhances gp96 dimerization and the interaction between gp96 and KDEL receptor-1 (KDELR-1), which mediates the retrieval of KDEL-containing proteins from Golgi to the endoplasmic reticulum (ER). The interaction between gp96 and KDELR-1 was reduced in AIMP1-deficient cells, and this disturbed ER retention of gp96 and increased its cell surface localization. Moreover, this localization of gp96 at the cell surface was suppressed by its interaction with AIMP1 and enhanced by the depletion of endogenous AIMP1. In addition, AIMP1-deficient mice showed dendritic cell activation attributable to increased gp96 surface presentation and lupus-like autoimmune phenotypes. These results suggest that AIMP1 acts as a regulator of the ER retention of gp96 and provide a new perspective of the regulatory mechanism underlying immune stimulation by gp96.</P>