• Journal of Korean Society of Forest Science
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• v.97 no.4
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• pp.374-384
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• 2008

This study examined the attitudes of the Korean forest policy interest groups toward the new environmental paradigm and resources management paradigm which were emerged in western societies. The 1st survey was conducted for five interest groups (forest owners, timber industries, members of the Korean Alpine Club, members of the Korean Natural Parks Association, forestry experts) in 1995, and the 2nd survey was conducted in 2006 for three interest groups (forest owners, members of the Forest for Life, members of the Baekdudaegan Preservation Society). The survey results show that there are significant differences in attitudes and beliefs toward the new environmental and resources management paradigms among groups. The environmental conservation groups such as the members of the Alpine Club, Nature Parks Association, Forest for Life, Baekdudaegan Preservation Society favor the NEP and NRMP more than those of traditional forestry related groups such as forest owners and timber industries. But, there are no significant attitudinal changes among forestry related groups. This research provides valuable insights into understanding the attitudinal positions of the interest groups toward forest resources management and policy formulation in Korea.

• Journal of Life Science
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• v.19 no.1
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• pp.52-57
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• 2009

This study was carried out to investigate the antioxidative and antimicrobial activities of Celastrus orbiculatus (CO). CO was extracted with methanol and then further fractionated with n-hexane (COMH), butanol (COMB), methanol (COMM) or aqueous (COMA) to get active fractions. The antioxidative activity of fractions from CO was investigated by measuring the scavenging activities of CO against DPPH radical, peroxynitrite ($ONOO^-$) and reactive oxygen speicies (ROS). Among the various solvent fractions, the COMB showed a marked scavenging effect against DPPH radical, peroxynitrite ($ONOO^-$) and reactive oxygen species(ROS). The antimicrobial activity was increased in proportion to its concentration by the paper disk method. Among the various solvent fractions, the COMM and COMB fractions of CO showed strong antimicrobial activities. The results suggest that The CO may be suitable for development as a food preservative and alternative antioxidant.

• Journal of Life Science
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• v.15 no.3 s.70
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• pp.397-405
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• 2005

Sulforaphane, an isothiocyanate derived from hydrolysis of glucoraphanin in broccoli and other cruciferous vegetables, was shown to induce phase II detoxification enzymes and inhibit chemically induced mammary tumors in rodents. Recently, sulforaphane is known to induce cell cycle arrest and apoptosis in human cancer cells, however its molecular mechanisms are poorly understood. In the present study, we demonstrated that sulforaphane acted to inhibit proliferation and induce morphological changes of human cervical carcinoma HeLa cells. Treatment of HeLa cells with $10{\mu}M\;or\;15{\mu}M$ sulforaphane resulted in significant G2/M cell cycle arrest as determined by flow cytometry. Moreover, $20{\mu}M$ sulforaphane significantly induced the population of sub-G1 cells (9.83 fold of control). This anti-proliferative effect of sulforaphane was accompanied by a marked inhibition of cyclin A and cyclin-dependent kinase (Cdk)4 protein and concomitant induction of Cdc2, Cdk inhibitor p16 and p21. However, sulforaphane did not affect the levels of cyelooxygenases and telomere-regulatory gene products. Although further studies are needed, the present work suggests that sulforaphane may be a potential chemoprevetive/ chemotherapeutic agent for the treatment of human cancer cells.

• Korean Journal of Pharmacognosy
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• v.40 no.4
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• pp.303-308
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• 2009

Essential oils of the musk from wild muskrat (Ondatra zibethicus) were analyzed by gas chromatography/mass spectrometry. Fifty-six chemical components were separated, and 14 volatile compounds (78% of composition of total essential oil) of macrocyclic musk, mainly cyclopentadecanone, 12-hydroxy-14-methyl-oxa-cyclotetradec-6-en-2-one, cycloheptadecanone and 9-cycloheptadecen-1-one, were identified by the comparison of Wiley/NBS Library from the results of GC-MS. However, l-muscone, a compound reported by earlier workers in the musk from muskrat, was not detected using the spike test in this study. Interestingly, cyclohexadecanone, which has the same molecular weight (Mw 238) as l-muscone, was identified. In addition, it is considered that because of possessing much higher amounts of macrocyclic components compared to the original musk, muskrat has higher economic values in perfume and pharmaceutical industries.

• Korean Journal of Agricultural Science
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• v.24 no.1
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• pp.75-84
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• 1997

Modem biotechnology, specifically for the use of recombinant DNA(rDNA), has brought about a revolution in our ability to control and use life forms. Most of the world's leading countries view biotechnology as the key scientific and industrial discipline for the 21st century and are making all - out efforts for scientific and technological advance in the related fields. The impact of biotechnology on the nation's economy has been growing explosively as such diverse industries invested increasingly on the fruits of biotechnological research. However, such an impact could only be realized through concerted endeavours from the government to private sectors for guarantee of the successful technological advances in this scientific area. There are risks associated with every technology; the classical application of biotechnology has not been exempt. For example, the introduction of bio-tech to agriculture might be destroied the ecosystems. Therefore, to increase the research budgets by the government and private sectors, we need to identify the public attitudes and preference on the acceptance of bio-technology and on the potential economic value of it. For the study, we surveied 959 persons including students enrolled in college of agriculture, Chungnam National University. And to measure the economic value of biotechnology, we use the Contingent Valuation Method(CVM) which is considered as the new approaching method in the bio-technology field.

• Corrosion Science and Technology
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• v.17 no.2
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• pp.74-80
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• 2018

The electronic industries require environmentally-friendly and highly functional materials to enhance the quality of human life. Home appliances require insect repellent steels that work to protect household microwave ovens from incurring damage by insects such as fire ants and cockroaches in tropical regions. Thus, POSCO has developed new types of functional steels, coated with an array of organic-inorganic hybrid composites on the steel surface, to cover panels in microwave ovens and refrigerators. The composite solution uses a fine dispersion of hybrid solution with polymeric resin, inorganic and a pyrethroid additive in aqueous media. The hybrid composite solution coats the steel surface, by using a roll coater and is cured using an induction curing furnace on both the continuous galvanizing line and the electro-galvanizing line. The new steels were evaluated for quality performances, salt spray test for corrosion resistance and biological performance for both insect repellent and antimicrobial activity. The new steels with organic-inorganic composite coating exhibit extraordinarily biological functionalities, for both insect repellent and antimicrobial activities for short and long term tests. The composite-coating solution and experimental results are discussed and suggest that the molecular level dispersion of insecticide on the coating layer is key to biological functional performances.

• Journal of Global Scholars of Marketing Science
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• v.8
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• pp.39-59
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• 2001

The production of the tea leaf is characteristic of the geographical distribution. The farmer of the Chonnam, Cheju, kyongnam has taken the their chance of the income crops in the tea leafs. The income crops has been developed the production system by the leaf producer. The consumer has improved the conditions of the life in search of the efficiency in the consumer system. Coping with the systems in the production and consumer, It requires consideration from the change and extension in the distribution systems. The distribution systems has gone through with the power of creation in the demand and supply.

• Korean Journal of Human Ecology
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• v.15 no.1
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• pp.107-128
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• 2006

The purposes of this study are to explore the consumption expenditure and consumption-cultural meaning in the process of marriage and to provide consumer education programs for premarital couples. For the purpose, this study uses a qualitative analysis including an in-depth interview and a participant observation. Major findings are as follows: Consumers preparing for their marriage experienced quite a different consumption context, which should be said an exceptional practice from the economic point of view. As the agency businesses for marriage becomes one of the fast growing industries, the marriage of Korea is now under the rule of popular consumption culture. Thus, the exceptional consumption abuse during a marriage process brings about the imbalance in consumers' daily life after wedding ceremony. In this point of view, we can see the importance of consumer education programs for the marriage process. The latter half of this study is devoted to propose the desirable model of the consumer education program for premarital couples.

• Journal of the Korean Applied Science and Technology
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• v.19 no.4
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• pp.302-310
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• 2002

Demand for organic analysis increase as industries are growing and many products are spreaded in the daily life. One of many products is oil spill dispersant. It was used for oil accident in the ocean. When oil spill dispersant spread at the ocean, the petroleum in the ocean is dispersed. The oil spill dispersant is made of non ionic surfactant and petroleum oil. The non ionic surfactant disperse petroleum from oil accident. The other part is petroleum oil which has aromatic hydrocarbon. Because the aromatic hydrocarbon is cancerogenic material, it directly injure animals in the ocean. This cause the second pollution in the human body. Many oil accidents still are controlled by oil spill dispersant. Therefore quality control of the oil spill dispersant become important and this also demand for the exact quantitative analysis of aromatic hydrocarbon. Hereupon the first we develop separate petroleum oil from surfactant. The second standardize analytical method of aromatic hydrocarbon in the separated petroleum oil.

• Journal of Distribution Science
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• v.12 no.5
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• pp.109-117
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• 2014

Purpose - The study investigates the history, production methods, market scale, and distribution of the traditional liquors of three countries: South Korean sokokju, Chinese shaoxing-chiew, and Japanese sake. These have similar production methods, being made from rice or cereal, cores of their respective food industries. Research design, data, and methodology - The study investigated the history of the three liquors, liquor classification in the three countries, and production methods. It examined the scale of the traditional liquor market and these countries' distribution structure. Results - Brand cognition of traditional liquors is affected by a focus on wellbeing and LOHAS (lifestyle of health and sustainability). Promotion and marketing strategies along with a high quality image, shelf life of draft liquor, traditional liquor identification systems, and high taxes on traditional liquor, and the need for continuous R&D and training of professionals all impacted the industry. Conclusions - These countries play important roles in world trade, seeking economic integration. By forming a free trade agreement (FTA), their traditional liquors, with a proud history, can be jointly branded in the world market.