• 한국조리학회지
• /
• 제7권1호
• /
• pp.181-202
• /
• 2001

Recently there is growing concern regarding the service industry in Korea, especially the food service industry. The form of food service industry has become larger and speciallized by means of either implementing marketing programme in individual companies or the entrepreneurs' possesstion of chain stores. As the food service industry has extended throughout the whole of Korea, It has contributed enormously to the regional economy. These phenomena is based on the following facts; the increase in income level, the fast economy growth and change, rapid reform of social structure, and the change in status of the labor population. To meet these changes and reforms the food service industry in Korea has to form a new ideology that takes into account the interaction with globalization, the phenomena of instant-food consumption habit, a general increase in the those who eat-out, the two faces of luxury, and the blending of domestic extravagance and practicality, especially the influence of imported brands on advance technology and system utility on the economic section and style as a whole.

• Ocean and Polar Research
• /
• 제30권1호
• /
• pp.59-77
• /
• 2008

The purpose of this study is to carry out a comparative analysis of Korean and US Sea Grant College Program (SGCP). The important lesson learned from the US SGCP is that ocean policy requires active interaction among public and oceans since oceans are far from constituents, law makers and government officials. Also, Sea Grant Program (SGP) should be based on universities so as to facilitate the use of equipment and expertise, there is a need for a well-organized control system, legislative mandates and strong government financial support, and sea grant activities must be well combined with regional/local outreach, education and research at the appropriate level.

• 물과 미래
• /
• 제16권1호
• /
• pp.41-48
• /
• 1983

세계 식량 및 에너지 위기의 심화에 따른 여러 가지 용수공급의 경합에 맞추어, 시스템공학의 지역적 수자원 개발 계획에 대한 적용이 중요시되고 있다. 도시 수자원과 토지 이용 전략 및 이에 따른 환경 영향에 관한 논의와 함께, 분배 관망의 최소 비용안을 구하기 위한 선형계획 및 비선형계획 방법을 제시하였다. 또한 주어진 가상용수 수요에 대비한 부배 모형의 작성 및 실제전산 처리를 통하여 장래 용수 공급원에 관한 민감도를 분석하였다.

• 제어로봇시스템학회논문지
• /
• 제12권9호
• /
• pp.898-904
• /
• 2006

Ionospheric storms, caused by the interaction between Solar and geomagnetic activities, may degrade the differential GNSS(Global Navigation Satellite Systems) performance significantly, and the importance of the ionospheric storm research is growing for the GBAS(Ground-Based Augmentation System) and SBAS(Satellite-Based Augmentation System) development. In order to support Korean GNSS augmentation system development, a software tool for analyzing the regional ionosphere is being developed and its preliminary results are discussed. After brief description of the ionosphere and ionospheric storm, the research topics on the GBAS applications are discussed. The need for ionospheric spatial gradient analysis is described and some results on the ionospheric spatial gradient during recent storm periods are discussed.

• International Journal of Industrial Entomology and Biomaterials
• /
• 제29권1호
• /
• pp.93-119
• /
• 2014

Tropical tasar silkworm, Antheraea mylitta (Lepidoptera: Saturniidae) is a polyphagous silk producing forest silkworm of commercial importance in India. Forest dependent people rear its larvae on different forestry host plants twice or thrice in a year for small household income. Larvae of A. mylitta feeds on many forest tree species, but always show a great degree of selectivity as a function of its behavioural responses to physical structure and chemical features of the host plants. Cocoon crop of A. mylitta is influenced by heterogeneity of tasar food plants and climatic conditions of the habitat. The role of host plants, temperature, humidity, rainfall, photoperiod and climatic variables on the growth and development of insects have clearly been demonstrated. This article entails an in-depth analysis on ecological and nutritional aspects of A. mylitta, which may provide selective information to researcher and forest managers, who are particularly associated with livelihood improvement of the poor people in forested area through location specific forest insect industry.

• 대한약학회:학술대회논문집
• /
• 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
• /
• pp.346.3-346.3
• /
• 2002

The polyamine pathway represents a logical target for chemotherapeutic intervention, since depletion of polyamines results in the disruption of a variety of cellular functions, and may in specific cases result in cytotoxicity. Polyamine interaction with DNA has also long been thought to be an important function of the natural polyamines and as more is learned about the specific interactions and the resultant conformational changes which can be influenced by the polyamine binding to DNA the potential for regional and gene-specific changes are becoming more evident. We have prepraed the elaborate polyamines by the reaction of simpler polyamines with polyalkyating agents. Synthesized polyamines were separated and purified by metal complex formation and ion-exchange chromatography. They were characterized by X-ray crystal structure determinations of their metal complexes.

• International Journal of Internet, Broadcasting and Communication
• /
• 제13권3호
• /
• pp.73-83
• /
• 2021

With the development of science and technology, virtual reality (VR) has become increasingly popular, being widely used in various fields such as aviation, education, medical science, culture, art, and entertainment. This technology with great potential has changed the way of human-computer interaction and the way people live and entertain. In the field of animation, virtual reality also brings a new viewing form and immersive experience. The paper demonstrates the production of VR animation and then discusses camera's position in VR animation. Where to place the VR camera to bring a comfortable viewing experience. The paper, with the proxemics as its theoretical framework, proposes the hypothesis about the camera position. Then the hypothesis is verified by a series of experiments in animation to discuss the correlation between camera position and proxemics theory.

• 한국농림기상학회:학술대회논문집
• /
• 한국농림기상학회 2001년도 춘계 학술발표논문집
• /
• pp.151-152
• /
• 2001

A common problem of the model simulations of the land surface - atmosphere interaction is to choose the appropriate spatial scale and resolution at which the simulations are to be performed. The accuracy of energy and water exchange predictions between the land surface and the atmosphere in regional and global scale atmospheric models is mainly influenced by: model simplifications applied to describe the spatial heterogeneity of land surface properties within individual grid cells; ignoring the variability of sub-grid properties (e.g. relief, vegetation, soils), and; lacks of necessary input meteorological and biophysical data.(omitted)

• 고문화
• /
• 68호
• /
• pp.7-24
• /
• 2006

이 논문은 한반도 청동기시대 '사회' 고고학을 어떠한 관점과 방법으로 연구할 것인가를 검토해 보고자 작성되었다. 먼저 한국의 '사회' 고고학 접근을 연구사적으로 검토하였는데 1970년대까지는 민족사의 흐름과 같이 모호한 실체와 과정으로 사회진화의 단계를 서술하는데 그쳤다고 보았다. 이러한 관념에서 벗어나 단위사회의 규모와 지배권력의 성격 등에 주목하기 시작한 것은 1980년대부터였고, 고고학 자료의 위계와 분포를 분석하여 사회단위와 그 조직을 복원해 보려는 노력은 1990년대 들어와서야 가능했다고 보았다. 그리고 영미와 일본 고고학에서 이루어진 사회에 대한 접근의 틀을 참고하여 청동기시대 취락을 분석하기 시작한 것은 불과 10년 전의 일이다. 다음으로, 어떤 고고학적 실체를 지칭하는 용어로 정착된 'OO유형' 이라는 개념과 종족집단의 존재가 전제된 문화단위에 대한 관념들을 비판적으로 검토하였다. 청동기시대 고고학자들은 한편으로 취락 내부와 취락 간의 유물분포를 분석하여 사회적인 특성들은 정의하고 있지만 다른 한편으로는 'OO유형' 이라는 문화적 실체의 생성과 확장, 및 소멸에 관한 논의를 하고 있는데 이것은 생산적인 '사회' 고고학 연구에 전혀 도움이 안 된다고 보았다. 비파형동검과 같이 광역으로 분포하는 물질문화의 요소들을 고대 종족명과 관련시키는 연구관점에 대해 비판하였다. 이와 같이 광역으로 분포하는 물질문화의 존재는 지역집단들 사이에 형성된 모종의 관계망으로 설명할 필요가 있으며 나아가 이러한 관계망을 통해 이루어지는 상호작용의 성격과 함께 그 물질문화의 상징적 의미가 지역에 따라 어떻게 변용되는지에 대해서 검토될 필요가 있다고 보았다.

• Journal of Ginseng Research
• /
• 제37권2호
• /
• pp.176-186
• /
• 2013

In this study, we have investigated the effects of total saponin from Korean red ginseng (TSKRG) on thrombin-induced platelet aggregation. TSKRG dose-dependently inhibited thrombin-induced platelet aggregation with $IC_{50}$ value of about 81.1 ${\mu}g/mL$. In addition, TSKRG dose-dependently decreased thrombin-elevated the level of cytosolic-free $Ca^{2+}$ ($[Ca^{2+}]_i$), one of aggregation-inducing molecules. Of two $Ca^{2+}$-antagonistic cyclic nucleotides as aggregation-inhibiting molecules, cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP), TSKRG significantly dose-dependently elevated intracellular level of cAMP, but not cGMP. In addition, TSKRG dose-dependently inhibited thrombin-elevated adenosine triphosphate (ATP) release from platelets. These results suggest that the suppression of $[Ca^{2+}]_i$ elevation, and of ATP release by TSKRG are associated with upregulation of cAMP. TSKRG elevated the phosphorylation of vasodilator-stimulated phosphoprotein (VASP)-$Ser^{157}$, a cAMP-dependent protein kinase (A-kinase) substrate, but not the phosphorylation of VASP-$Ser^{239}$, a cGMP-dependent protein kinase substrate, in thrombin-activated platelets. We demonstrate that TSKRG involves in increase of cAMP level and subsequent elevation of VASP-$Ser^{157}$ phosphorylation through A-kinase activation to inhibit $[Ca^{2+}]_i$ mobilization and ATP release in thrombin-induced platelet aggregation. These results strongly indicate that TSKRG is a beneficial herbal substance elevating cAMP level in thrombin-platelet interaction, which may result in preventing of platelet aggregation-mediated thrombotic diseases.