• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.29 no.2
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• pp.16-24
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• 1997

This experiment was mainly performed with a biological treatment of laser printed paper using enzyme, We got the following conclusions : In the case of nonionic surfactant treatment, brightness, residual ink contents and several strength properties of deinked paper were excellent at the low dosage of cellulase 0.05%. When mixed cellulase and xylanase was used, yield was increased as the dosage increased up to 0.2%, but brightness was decreased at the same condition. In contrast, deinking efficiency of anionic type was reduced in terms of brightness, residual ink contents, and tensile strength. As flotation time was increased, yield decreased and brightness increased slightly. On the other hand, the addition of surfactant during repulping process showed better result than that during flotation process.

• Korean Management Science Review
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• v.29 no.1
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• pp.89-99
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• 2012

In this paper, we deal with the dual-depot heterogeneous vehicle routing problem with simultaneous delivery and pick up(DH-VRPSDP) in reverse logistics. The DH-VRPSDP is a problem of designing vehicle routes in a day of given vehicle to minimize the sum of fixed cost and variable cost over the planning horizon. Each customer can be visited only once according to the service combinations of that customer. Due to the complexity of the problem, we suggest a heuristic algorithm in which an initial solution is obtained by changing the customer and the vehicle simultaneously and then it is improved. A performance of the proposed algorithm was compared to both well-known results and new test problems.

• Journal of Nutrition and Health
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• v.27 no.8
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• pp.785-794
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• 1994

The effect of feeding various diets on plasma lipids, liver lipids, fecal excretion of lipids and triglyceride secretion rate was studied in Sprague-Dawley rats fed for 1 month diets containing high fat(40% of energy ; HF) high cholesterol(1% ; HC), low fat/high sucrose(70% ; HS) or control diet(CT). Weight gain in HS group but there were no differences in TG contents of HF or HC groups compared to CT group. Fecal excretion of lipid was higher in HC than in HF, HS and CT groups. Hepatic TG secretion was not significantly different in four dietary groups. Accordingly, hypertriglyceridemia shown in HS group does not seem to be resulted from the increased TG secretion rate.

• Journal of Nutrition and Health
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• v.33 no.4
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• pp.374-385
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• 2000

The purpose of the present study was to investigate the effect of Korea leek on plasm lipids and platelet aggregation in hypercholesterolemic rats fed different dietary fat. Sprague-Dawley rats were fed with hyperlipidemic diet for 4 weeks in order to induce hyperlipidemia, followed by the feeding of experimental diets for additonal 4 weeks. We used three kinds of lipid(perilla oil, corn oil and lard). Korean leek of experimental diets was prepared by drying and milling. Powdered Cellulose and powdered Korean leek were added to experimental diets at the level of 5% (w/w). Serum concentrations of total lipid, total triglyceride, total cholesterol and LDL-cholesterol decreased in the order of perilla oil, corn oil and lard. Korean leek significantly decreased total lipid, total cholesterol, LDL-cholesterol, platelet count, prothrombin time, and platelet aggregation in rats fed a lard diet. The present observation indicates that Korean leek might be helpful for the prevention and threapy of hyperlipidemia and platelet aggregation.

• Journal of Nutrition and Health
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• v.30 no.3
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• pp.244-251
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• 1997

The effects of Artemisia princeps var orientalis(mugwort), Circium japonicum var ussuriense (Unggungqui) on cadiovascular system in hyperlipidemic rats were investgated. Thirty rats devided into 5 experimental groups, were fed with the diet contained 1% chlesterol, 0.25% sodium cholate, 10% coconut oil and 5% lard by the same method of previous paper1). Contractile and relaxation responses in the isolated artria and thoracic aortae were measured and the morphological changes of the aortic endotherium from the rats were inspected. The responses of the right atrial to isoproterenol were significantly lower value in Ungungqui powder diet group(UP) and mugwort powder diet group(MP) than the control. The contraction force by injectin of phenylephrine and calcium in isolated thoracic aortae was significantly low value in the UP and the MP groups compaired to the control. The relaxation rate by acetylcholine in isolated thoracic aortae represented significantly higher value in UP than control. The morphological changes of endothelial cell suface was smallest in UP and the damage of endothelium by retarded in MP. Although Ungungqui and mugwort extract diet groups(UE, ME) were advanced, those were less than control.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.36 no.3
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• pp.9-14
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• 2004

The useful fungi which secret extracellular enzymes was selected for deinking agent of old newsprint. Five fungal strains were isolated from a paper mill soil ground. The CMCase, FPase and xylanase activities of fungi on the liquid culture were investigated at optimal growth conditions. The results of this study were as follow: The optimal pH and temperature for culture growth were 4～8 and 27～$35^{\circ}C$, respectively. For screening of extracellular enzymes at optimal culture conditions the optimal culture period were less than 6-7 days. Fusarium pallidoroseum and Aspergiilus niger which shows relatively higher CMCase, FPase and xylanase activities than the other species were selected for further enzymatic deinking research.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.31 no.4
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• pp.1-7
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• 1999

This study was carried out to simulate the change of various properties of recycled water when zero-discharge system was applied to a KOCC recycling process. contaminants such as chemical oxygen demand, anionic trash, and calcium hardness were gradually increased in the process water as the recycling was repeated . Especially, the increase of anionic trash and COD were closely related to the starch derived from corrugating adhesive in KOCC. Four kinds of water were compared in the preparation of handsheet to evaluate the performance of retention program. Waters used in this work were laboratory tab water, process water from Dong-II mill and the same one treated by UASB process, and closed white water prepared by KRICT. The result revealed that one the major factors fro reducing a retention power was the anioni trash accumulated in the recycled water.

• Electronics and Telecommunications Trends
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• v.26 no.6
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• pp.77-85
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• 2011

2011년 7월에 도로명과 건물번호를 사용하는 새로운 주소 체계인 도로명주소가 고지되었다. 본 고에서는 100년 가까이 사용한 지번주소를 대체하기 위한 도로명주소와 관련 사업 등의 추진 동향을 살펴보고, 현재 추진상에서 쟁점이 되는 사항들과 도로명주소 등의 추진에 관련된 기술적인 이슈 및 동향 등에 대해서 살펴보기로 한다. 이를 위해서 기존 주소의 문제점 개선과 국제적인 표준 동향에 따르기 위한 도로명주소의 추진 상황과 국가의 기관별로 구역설정을 공통으로 활용하기 위한 구역번호의 추진 상황을 살펴본다. 도로명주소 추진 상황을 더욱 이해하는 차원에서 최근에 제기되고 있는 건물 단위의 행정구역과의 불일치 문제, 도로명의 표기 문제, 동과 공동주택 명칭 사용 제외 등에 대한 쟁점사항을 소개한다. 그리고 도로명주소와 관련된 기술적 이슈 및 동향들을 GIS 기술과의 결합, 데이터 정제 기술, 상세 주소의 정형화를 통한 데이터 호환, 정보시스템의 구현 및 연계 기술, 국제 표준화를 위한 대응, 우편물류 분야 측면에서 각각 살펴본다.

• KSBB Journal
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• v.28 no.5
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• pp.310-314
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• 2013

Antifreeze peptide from Myoxocephalus octodecemspinosus was overexpressed and purified in Escherichia coli. Green fluorescence protein-AFP chimera was constructed by integrating gfp and afp genes. Produced GFP-AFP chimera protein was purified using polyhistidine tag which was inserted at C-terminus. By addition of GFP-AFP chimera protein, freezing point of elution buffer was decreased from $-13^{\circ}C$ to $-20^{\circ}C$. This result suggested that GFP-AFP chimera can be considered as a potential candidate of novel inhibitor for gas hydrates.

• Journal of the Korean Society of Costume
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• v.49
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• pp.95-112
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• 1999

The purpose of this study was to research of color symbol on white in the Virgin Mary and an Infant jesus icons. For this purpose icons were selected and analyzed from the medieval ages to the 18th century. The results were as follows. Icons on the subject of the Annnunciation and the Nativity should be expressive of nobility immaculacy and innocence of the Virgin Mary and an Infant Jesus. With this view white was used to be color of candle a waxing moon lily kettle dress bedspredad towel wall encircled garden and became symbolic color in the Icons. As a result the color symbol of white the meaning of immaculacy and innocence disseminated according to spread of the Christian religion. In these days though elimination of the religious meaning the white color is using continuosly as a symbolic color of immaculacy and innocence.