• Cement
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• s.100
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• pp.64-70
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• 1985

• Journal of the Society of Cosmetic Scientists of Korea
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• v.33 no.1 s.60
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• pp.17-22
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• 2007

In this study, we investigated the effects of Sedum sarmentosum extract on the expression of hyaluronan synthase (HAS) genes and hyaluronan (HA) production in HaCaT keratinocytes. We also assessed water content (electrical capacitance) and transepidermal water loss (TEWL) in human skin after topical treatment with Sedum sarmentosum extract. Sedum sarmentosum extract increased expression of HAS-2 and HAS-3 genes in HaCaT cells, when assayed by real-time reverse-transcriptase polymerase chain reactions (RT-PCR). Sedum sarmentosum extract induced HA production in HaCaT cells, when determined by enzyme-linked immunosorbent assay (ELISA). Finally, treatment of Sedum sarmentosum extract on human skin increased the skin hydration and decreased TEWL when measured using Corneometer and Tewameter. Our study suggests that Sedum sarmentosum extract should be a very useful cosmetic ingredient, as a skin moisturizer.

• The Korean Journal of Food And Nutrition
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• v.17 no.3
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• pp.328-336
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• 2004

The purpose of this study was designed to observe the effects of the feeding Prunus persica Batsch var. davidiana Max. extract on the concentrations of the lipids and blood glucose in the S.D. rats fed the experimental diets for 5 weeks. Concentrations of total cholesterol, atherosclerotic index, LDL, LDL-cholesterol, free-cholesterol, cholesteryl ester, triglyceride(TG), phospholipid(PL) and blood glucose in serum were significantly higher in the cholesterol administration groups (groups BCG (cholesterol+water), BCPG (cholesterol+ Prunus persica 5.0 g% extract) than those in the control group (group BG, basal diet+water). But the concentrations of total cholesterol, atherosclerotic index, LDL, LDL-cholesterol, free-cholesterol, cholesteryl ester, TG, PL and blood glucose in serum were remarkably lower in the group BCPG than those in the group BCG. In the ratio of HDL-cholesterol concentration to total cholesterol and HDL-cholesterol concentration, Prunus persica 5.0 g% extract administration group was higher percentage than in the group BCG. The activities of aspartate aminotransferase (AST), alanine aminotransferase(ALT), lactate dehydrogenase(LDH) and alkaline phosphatase (ALP) in serum were rather lower in the Prunus persica 5.0 g% extract administration group(group BCPG) than in the cholesterol diet group(group BCG). From the above research, Prunus persica Batsch var. davidiana Max. were effective on the improvement of the blood glucose, lipid compositions in serum of dietary hyperlipidemic rats. And particularly, Prunus persica Batsch var. davidiana Max. was more effective therapeutic regimen for the control of metabolic derangements in adult disease.

• Korean Journal of Ecology and Environment
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• v.44 no.2
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• pp.144-154
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• 2011

The fish community structure and inhabiting status of the endangered species Gobiobotia macrocephala and G. brevibarba were investigated at 10 stations in the Seom River, Korea from spring to autumn in 2010. During the survey, 37 species belonging to 10 families were found as inhabitants. A dominant species was Zacco platypus (36.2%), subdominant species were G. macrocephala (13.2%) and G. brevibarba (12.2%), and predominant species were Coreoleuciscus splendidus (8.1%) and Rhinogobius brunneus (4.9%). In addition, 18 species were endemic species to Korea; G. brevibarba and G. macrocephala were endangered species. The similarity index based on species composition and numbers clearly separated fish communities in the Seom River according to main sections, i.e., upper section (St. 1~3), middle section (St. 4~6) and lower section (St. 7~10). Dominance index gradually decreased toward the lower section, while diversity and species richness index gradually increased toward the downstream section. G. macrocephala resided in a fast-running downstream riffle with pebble and cobble substratum, while G. brevibarba inhabited the entire riffle with cobble substratum.

• Journal of the Korea Convergence Society
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• v.8 no.4
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• pp.59-65
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• 2017

The purpose of this study was conducted to identify differences of the self confidence for newborn baby care before and after clinical convergence baby massage training program. Study subjects were 50 juniors in B nursing college located in Chungnam Province, modified baby massage training programs had been provided 2 hours a day, total 4 times from March 1 to March 25, 2016. Confidence for newborn baby care was measured pre and post program, collected data were analyzed using SPSS 21.0 program, paired t-test. The results of the study showed that the score of self confidence for newborn baby care(t=-7.209, p<.001), feeding(t=-6.025, p<.001), belching(t=-3.870, p<.001), bathing(t=-7.432, p<.001), after bathing hygiene(t=-5.892, p<.001), navel care(t=-3.843, p<.001), assessment of baby condition and baby care(t=-6.113, p<.001) were statistically significant differences before and after baby massage training program. Finally, the findings of this study, clinical convergence baby massage training program based on the necessary knowledge and practice in clinical filed will positively help to develop a confidence for newborn baby care for nursing students in nursing practice and clinical nursing care.

• Korean Journal of Plant Taxonomy
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• v.46 no.4
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• pp.371-377
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• 2016

The succulent herbaceous perennial Sedum sarmentosum commonly grows in the southern part of the Korean Peninsula. It is a species native to China, most likely introduced into Korea due to its edible and medicinal uses. If plants were introduced from a single source, we would expect no or low levels of genetic variation in Korean populations. Alternatively, if plants were introduced from multiple sources, we would expect, in contrast, high levels of genetic diversity. To test which is more likely, we surveyed the degree of allozyme variation in ten populations of this species from southern Korea. We found that S. sarmentosum was monomorphic at all fifteen allozyme loci. However, two congeners (S. polytrichoides and S. kamtschaticum) and two related species (Hylotelephium ussuriense and H. verticillatum) maintain moderate to high levels of genetic diversity ($H_e=0.144$, 0.203, 0.201, and 0.204, respectively). We suggest that southern Korean populations of S. sarmentosum likely descended from a single introduction of a few plants and then became naturalized exclusively via vegetative spreading (as plants in Korea, but also as occurs in other parts of its native and naturalized range, are sterile).

• Journal of Digital Convergence
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• v.17 no.2
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• pp.373-379
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• 2019

This study examines the process and scope of visual directing through the case of SM Entertainment, and explores the role of visual directors. As a result of the case study, SM created the visual directing team composed of art director and visual designers within the creative headquarters and was actively introducing visual directing for the development of idol. The visual directing process of SM, which is being developed as a part of the star marketing, consists of analyzing the environment in marketing strategy, establishing marketing strategy related to idol, setting up target image per artist, and finally planning and managing the visual directing project. The visual director in SM is required to have creative talent, logical persuasion, information analytical ability, visual expression ability, and field application ability. SM also applies visual directing accumulated from idol singers to SM business areas such as MD product design and production, product composition and designer collaboration, and SM town COEX artium. This paper have significance in attracting visual directing to the academic field.

• Journal of Korea Entertainment Industry Association
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• v.13 no.5
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• pp.47-57
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• 2019

New product innovation is a key component of a company's survival and sustained growth. With the rapidly changing market environment and global infinite competition, The importance of innovative new product development is growing. In the domestic entertainment industry, Competition is intensifying, and many companies are focusing on developing innovative new products in order to secure continuous competitive advantage in the era of global infinite competition. The problem is that as the intensity of competition increases and the idol production system develops more and more, The costs of planning and marketing are increasing. The fair trade commission estimated the cost of creating an idol group to be about 1 billion won, and some large entertainment companies claim that the investment cost is about 20 ~ 3 billion won. Lean startup is attracting attention as an innovation framework for sustainable competitive advantage of companies. But, there are not many related studies in Korea despite the growing interest. In particular, Case studies that can help to establish specific strategies are limited. Therefore, this study analyzed the successful case of JYP Entertainment's idol singer TWICE who succeeded in new product innovation and suggested practical implications. Theoretically, This study extended the Lean startup to the entertainment industry and suggested practical implications as the basic data for establishing the innovation strategies for the idol singers of domestic entertainment companies.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.810_811
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• 2009

본 논문에서는 하이브리드 전기자동차 구동에 적용되는 비선형 자기포화특성이 두드러진 매입형 영구자석 동기전동기의 돌극비에 따른 특성해석에 대해 나타낸다. 영구자석의 층수에 따라 달라지는 돌극비 특성을 구하기 위해 고정자, 회전자 형상 및 재질 등을 동일하게 두고 유한요소해석을 통해 자계해석을 하였다.

• KCID journal
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• v.4 no.2
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• pp.38-47
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• 1997

In the final stage of seadike closing, the flow in the tidal gap changes rapidly to high accelerating flow, causing losses of construction materials. As the tidal velocity through the gap of an end dump contraction is highly nonuniform, flow equations on