• Culinary science and hospitality research
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• v.6 no.2
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• pp.227-246
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• 2000

A few years ago, hotel service was not usual to the people very much but it's normally usual only for the higher-grade people. However now a days, it's expected that hotel service is universal one with changing of life style. It's rising to use hotel with being on the increasing of the international alternating so that the banquet service can be expected as the much more important service point of hotel. At the same time there are much more chances to participate in the personal parties and meetings. That means the demand is increasing than before. So every hotels are trying to promote the quality of the service, make renovation and suggest the specially distinguished service in comparison with the other hotels so as to get the banquet customers. Actually the sales amount from the banquet in the hotel can be said the biggest one in these days. That's why we cannot help thinking it the very important point at the hotel service. So we would 1ike to suggest the best way of managing hotel banquet service more efficiency and would like to find out how we can serve the higher quality service to the banquet customers in order them to make feel more satisfactory.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2010.04a
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• pp.403-407
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• 2010

건축 구조재료로 사용되는 소나무의 화재조건을 알아보기 위하여 콘칼로리미터(ISO 5660-1)를 이용하여 연소성질을 분석하였다. 자연 건조된 소나무에 $(NH_4)_2SO_4$, $NH_4H_2PO_4$, $(NH_4)_2HPO_4$ 등의 암모늄염을 이용하여 난연성을 부가하였다. 소나무의 함수율은 10.2%였으며 초기 열방출 곡선은 $(NH_4)_2HPO_4$인 경우 완만하게 증가하였으며 가장 좋은 난연성을 보였다. $HRR_{peak}$ 값은 무처리된 경우 $217\;kW/m^2$, $(NH_4)_2SO_4$, $NH_4H_2PO_4$, $(NH_4)_2HPO_4$인 경우에는 각각 $190\;kW/m^2$, $188\;kW/m^2$, $166\;kW/m^2$로 나타났다. 즉 $(NH_4)_2HPO_4$로 처리된 경우 23.5%의 감소현상이 관찰되었다. $HRR_{peak}$ 도달 시간은 무처리된 시험편(290s) 및 $(NH_4)_2SO_4$, $NH_4H_2PO_4$, $(NH_4)_2HPO_4$으로 처리된 시험편은 각각 298s, 263s, 313s로 나타났다. 연기 발생속도는 사용한 암모늄염 중 $(NH_4)_2SO_4$로 처리된 시험편이 가장 작게 관찰되어 저발연성 감연제 역할을 하는 것으로 판단된다.

• Korean Journal of Microbiology
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• v.46 no.3
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• pp.291-295
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• 2010

A novel bacteriocin produced by Streptococcus parauberis Z49 strain was characterized and efficiently extracted from fermented cultures by use of aqueous two-phase systems. The nisin-like bacteriocin, which was active even after a heat treatment at $121^{\circ}C$ for 15 min and in the broad pH range from 2 to 12, showed inhibition of bacterial growth of Micrococcus luteus, Lactobacillus spp., Lactobacillus fermentum, Enterococcus faecium, Listereia monocytogenes, and Pseudomonas fluorescens. Optimal conditions of PEG 600/$Na_2SO_4$ aqueous two-phase systems for the simple and rapid extraction of a novel bacteriocin were determined to be PEG 600 15%, $Na_2SO_4$ 30%, and NaCl 8%, where the bacteriocin was concentrated in PEG layer.

• Convergence Security Journal
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• v.18 no.1
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• pp.3-11
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• 2018

The emerging field of Science of Security (SoS) is a new paradigm that emerged in the field of security as a research field that applied the scientific approach to cyber security. It is a direction to study the formal model and automation field to secure the security of such a network environment in the present that dynamic change of complex, large scale network environment and a lot of protocol and mechanism environment exists. Therefore, this study analyzes the latest cyber security research trends such as SoS and examines the research trends of advanced countries to examine a new approach to cyber security development direction in Korea. We also analyze the current state of domestic scientific research on the scientific security research methods for various cyber security paradigms and present directions for revitalizing domestic cyber security.

• Journal of the Korean Society of Fashion and Beauty
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• v.4 no.3 s.9
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• pp.1-4
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• 2006

• Journal of the Korea Organic Resources Recycling Association
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• v.31 no.4
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• pp.51-58
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• 2023

In this study, anaerobic co-digestion was carried out using desulfurization sludge and sewage sludge (primary sludge) to evaluate the effects of sulfur compounds in anaerobic digestion. The experiment was carried out in the form of a batch test using 500 mL duran bottle, and the mixing ratio of the feedstock was selected based on the ratio of COD/SO₄. As a result of the experiment, it was confirmed that the amount of biogas generated and the yield decreased at the mixing ratio of COD/SO₄ 20 or less. In particular, below COD/SO₄ 10, it was lower than seed (283.5 mL) which was set without feedstock to correct biogas generated by itself from seed sludge. Methane yield tended to decrease from a ratio of COD/SO₄ 20 or less to 0.135 m³/kg VS compared to 0.396 m³/kg VS of COD/SO₄ 50. In addition, compared to 0.0097 m³/kg VS of hydrogen sulfide yield from COD/SO₄ 50, the ratio of COD/SO₄ 20 increased sharply to 0.0223 m³/kg VS, and in particular, the highest result was 0.0855 m³/kg VS in COD/SO₄ 10. Based on these results, it is judged that the effect of sulfide in anaerobic digestion can have an adverse effect if the COD/SO₄ ratio decreases to less than 20.

• 한국패션뷰티학회:학술대회논문집
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• 2006.05a
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• pp.7-8
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• 2006

• Korean Institute of Interior Design Journal
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• v.27 no.3
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• pp.108-115
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• 2018

The atmosphere is a popular word in everyday life. There is often an atmosphere when we enter a particular place. As if to say, The mood is perceived as an emotional and subjective word. Atmosphere is subjective and there are different feelings, but there are definitely certain feelings that people can relate to. The researcher examines the question in the paper and analyzes how the atmosphere in the space could be explained. So I will research about $B{\ddot{o}}hme^{\prime}s$ aesthetics which is called atmosphere. and analysis how his atmosphere is applied in nowadays art. So this study has two purposes. First is the notion of the atmosphere, not the atmosphere of rational perspective, it's about emotional and perceptual experiences. Therefore a connection about audience and arts is the most important focus in atmosphere. So the other purpose is Olafur Eliasson's Atmosphere. he is an artist about this perception. His work requires spectator intervention and participation to make it a perfect art. There is also a element in Eliasson's philosophy, in which the perceptual experiences of visitor's relationship between the work and the viewer, and eliminates the boundary as a perceptual expression.

• Journal of the Korean Society of Systems Engineering
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• v.7 no.1
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• pp.31-41
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• 2011

The purpose of this paper is to provide an abstracted meta-model for executing Capabilities Portfolio Management (CPM) effectively based on DoDAF2.0. The purpose of developing an architecture is for beneficial use of it. A good set of architectural artifacts facilitates the manipulation and use of them in meeting its usage objectives well. Systems engineering methodologies evolve to accommodate or to deal with enterprise or SoS/FoS level problems. And DoD's Capabilities Portfolio Management (CPM) is a good example which demonstrates enterprise or SoS level problems. However, the complexity of the architecture framework makes it difficult to develop and use the architecture models and their associated artifacts. DoDAF states that it was established to guide the development of architectures and to satisfy the demands of a structured, repeatable method for evaluating alternatives which add value to decisions and management practices. One of the objectives of DoDAF2.0 is to define concepts and models usable in CPM which is one of DoD's six core processes. However, DoDAF and various guidelines state requirements for CPM rather than how to. This paper provides methodology for CPM which includes process and tailored meta-models based on DoDAF Meta Model (DM2).

• Journal of the Korean institute of surface engineering
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• v.50 no.2
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• pp.85-90
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• 2017

The carbon steel formed the thick, somewhat porous, loosely adherent iron oxide scale when oxidized at $500-800^{\circ}C$ for 15 h in air. It formed the thicker, more porous, nonadherent scale consisting of FeS plus iron oxides in $Ar/1%SO_2$-mixed gas. It formed the much thicker, more porous, nonadherent scale consisting of FeS plus iron oxides in Ar/0.1% $H_2S$-mixed gas. However, the aluminized carbon steel formed the thin, protective $Al_2O_3$ surface scale even in $Ar/1%SO_2$-, and $Ar/0.1%H_2S$-mixed gas. Aluminizing drastically improved the corrosion resistance in (O, S, H)-containing gas.