• 펄프종이기술
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• 제46권5호
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• pp.35-42
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• 2014

Many historical archives have been deteriorated by aging with time. Various kinds of defects such as worm-hole, yellowing, brittleness are observed and their severity was dependent on raw material type, storage condition, and so on. For a long-term use and storage, a proper preservation treatment is required. Many studies on preservation and conservation have been carried out on hanji which was made from mulberry fiber, but there are few concerns on foreign paper. Therefore, aging and chemical strengthening treatment was done on paper made of bamboo and wood fibers depending on aging condition, the type and pickup weight of chemicals and treatment method. When methyl cellulose was treated with impregnation or brushing, the aged paper was strengthened effectively. The strengthening effect by chemicals was dependent on the aged condition of the paper.

• 한국의상디자인학회지
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• 제14권3호
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• pp.205-216
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• 2012

Korean traditional wedding ceremony was conducted with some regular procedure and there were used special Gyubang crafts for wedding ceremony. Nowadays there is common the western style wedding ceremony and then the use of wedding Gyubang crafts have being decreased. Purposes of this study are to investigate characteristics of and to propose some idea of preservation and application them in the life of today. The results are as follows; Wedding Gyubang crafts can be classified Bojagj(wrapping clothes), Jumeony(cloth bags), ornaments, items related to sewing and others. They were apt to be traditionality, symbolism and shamanism, and were superior in aesthetic sense, the effect of decoration and technical skill. So there was needed preservation them. Some way of preservation and applications them were suggested ; alternation in keeping with modern needs, use of ornament, alteration in present-day life, application their image to Korean cultural products, textile design and so on. Several works were developed by ways suggested and exhibited in order to arouse new understanding Wedding Gyubang Crafts to public.

• 한국식품저장유통학회지
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• 제7권2호
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• pp.211-217
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• 2000

The effects of Citrus flavonoids, hesperetin, hesderidin, naringenin, and naringin, on nonenzymatic lipid peroxidation were studied in three different in vitro experimental models. Hesperetin showed the most antioxidant effect in this experimental condition by measuring the malondialdehyde production using the thiobarbiturate and thiocyanate methods, the lipid peroxidation of microsomal membranes, and DPPH (${\alpha},{\alpha}'-diphenyl-{\beta}-picrylhydrazyl$) method. The antioxidative activity of the flavonoid aglycone forms, hesperetin, Citrus aglycone flavonoid, suggest the most antioxidant effect in this experimental condition, and this effect indicate more potent in the aglycones than their corresponding glycosides.

• 식품저장과 가공산업
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• 제8권2호
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• pp.3-5
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• 2009

• 사상체질의학회지
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• 제14권2호
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• pp.25-34
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• 2002

To understand characteristic of preservation of health in Sasang constitutional medicine, 1 first study preservation of health In ${\ulcorner}$Dongyi Bogam${\lrcorner}$, and then study preservation of health in the ${\ulcorner}$Dongyi Soose Bowon Sasang Chobongyun${\lrcorner}$ particularly Inherent vitality(命脈實數) and Regimen in ordinary life(生息充補之道) which shows early thought of Lee Je-ma. I acquire relation and difference between ${\ulcorner}$Dongyi Bogam${\lrcorner}$ and Dongyi Soose Bowon Sasang Chobongyun${\lrcorner}$, and conclude as follows. 1. In preservation of health ${\ulcorner}$Dongyi Bogam${\lrcorner}$ says Ups and downs of Qi according to degree, tells congenital health and acquired care of health, grades Jin-In, Ji-In, Seong-In, Hyeon-In according to degree of moral culture, and especially emphasizes managing mind which is based on Taoism. 2. In ${\ulcorner}$Dongyi Soose Bowon Sasang Chobongyun${\lrcorner}$ Dongmu divides human being to Sasangin(Taeyangin, Taeumin, Soyangin, Soeumin) according to Large & small of viscera, and regards as determine lift span and rendition of disease & health according to Inherent vitality which is degree of Small viscera. 3. Inherent vitality of Sasangin is supplemented by Regimen in ordinary life. Because Regimen in ordinary life decreases according to age, Dongmu emphasizes managing mind through an autonomic Knowledge Deed to maintain Regimen in ordinary life. 4. In the way of managing mind ${\ulcorner}$Dongyi Bogam${\lrcorner}$ says Taoist moral culture, but Dongmu emphasized control of knowledge and Deed by Confucian moral culture and the mind of control others through confucian self-control.

• 한국인쇄학회지
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• 제29권3호
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• pp.97-104
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• 2011

The storing ability of information of optical disks directly depends on the physical property of recording unit cells. It means that the degradation of optical disks ultimately causes the loss of the physical and chemical properties of recording unit cells and leads also information, too. We investigated the degradation and life time of optical disks which tell us the longevity of the preservation of information. Optical disks were aged using the accelerated aging system and studied by optical reflectivity spectroscopy and atomic force microscopy(AFM), and the preservation environment of electronic media in National central library of Korea also were analysed. Results show that the double reflective coated optical disks have good preservation of recording information but revealed some deformation of dye area in the AFM images. It means that we should include the mechanical and chemical degradation of the optical disks in the life time expectation evaluation.

• Journal of the Korean Wood Science and Technology
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• 제32권5호
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• pp.86-92
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• 2004

본 연구는 백탄보드와 오버레이 백탄보드를 비포름알데히드계 수지 접착제를 사용하여 습식공법으로 제조하고, 백탄보드의 포장용 상자로서의 기능을 검토하기 위하여 에칠렌가스 흡착과 딸기의 보관성을 측정하였다. 그결과, 백탄보드의 에칠렌 가스 흡착성능은 종이보다 월등히 좋았고 백탄 자체보다 높았으며, 오버레이 백탄보드와 비오버레이 백탄보드간 가스흡착성능은 차이가 없었다. 종이상자와 PVC상자 내 딸기와 백탄보드상자 내 딸기의 잿빛곰팡이 발생시간을 비교한 결과, 각각 2일 후, 4일 후로 나타났으며 박엽지와 부직포 사이의 흡착성의 차이도 역시 없었고, 백탄보드의 보관성 효과가 약 2배 좋았다. 결과적으로 백탄보드의 종류(혼합형, #40-60형)나 박엽지와 부직포 오버레이 백탄보드간의 신선도 유지효과의 차이는 없었다.

• 한국식품저장유통학회:학술대회논문집
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• 한국식품저장유통학회 2007년도 학술발표회
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• pp.239.2-239.2
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• 2007

• 한국식품저장유통학회지
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• 제6권1호
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• pp.16-22
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• 1999

Microbial populations (total bacteria, lactic acid bacteria and coliforms), TBA, VBN and POV were investigated for evaluating the shelf life of pork loins gamma-irradiated at doses of 1, 3, 5 and 10 kGy with air-contained and vacuum-packaged methods. The initial microbial populations decreased with gamma irradiation depending upon the dose and microorganisms in the vacuum-packaged samples were inhibited more than those in the air-contained samples. POV, TBA and VBN values were higher in the air-contained samples than in the vacuum-packaged samples. In conclusion, the combination of gamma-irradiation and vacuum-packaging could extend the shelf life of chilled pork loin.

• 한국고분자학회:학술대회논문집
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• 한국고분자학회 2006년도 IUPAC International Symposium on Advanced Polymers for Emerging Technologies
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• pp.267-267
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• 2006

Human umbilical cord blood was stored at $4^{\circ}C$ in the Pluronic-immobilized flask as well as commercially available bio-inert flasks, and flow cytometric analysis of surface markers was performed on hematopoietic stem cells after cultivation. The number of cells expressing $CD34^{+}$ in umbilical cord blood on the Pluronic-immobilized flask was extremely higher than those obtained using other flasks. It is concluded that the flexible and hydrophilic segments of Pluronic conjugated on the flask surface are the reason for the effective preservation of hematopoietic stem cells in the Pluronic-immobilized flask.