• 한국의류산업학회지
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• 제16권3호
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• pp.446-455
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• 2014

This study revealed the results related to the functionality of outdoor wear required when man and women in their 30s to 50s engage in outdoor activities. Based on the results of the survey, we proposed composition draft for a smart outdoor jacket with main functions of GPS device and light-emitting device using solar cell and EL. Absorption and release of sweat, functionality regarding rain and wind, and lightweightness, etc. from material functionalities of outdoor wear were found to be important. From function required in clothing for outdoor activity, location tracking, night glow, and lighting functions were found to be most important. For results investigating the necessity of the jacket's location tracking function and lighting function using solar cell, high scores of 3.9~4.0 were given. Purchase intentions for smart outdoor jacket with location tracking and lighting functions devised by this study were fairly positive and most responses indicated that the appropriate purchase price was between 200,000 to 300,000 won while possible problems of this smart outdoor jacket were listed in the order of washing inconvenience, high price, device weight, and discomfort in movement. The draft proposal to integrate with wearable devices for smart outdoor jacket prototype is as follows: Solar cell has been attached to the upper arm but placed inside a transparent pocket which has been detachable for washing convenience while the solar cell and controller have been integrated into a single unit. Using frequent movement exhibited by the arms, EL has been attached along the center line of the raglan sleeve for easy spotting when used as an emergency signal or for night lighting function during outdoor activity. GPS has been attached on the left sleeve so that the person can bend the left arm inward and operate the GPS screen with the right hand while walking or running outdoors.

• 한국식품영양학회지
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• 제26권1호
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• pp.8-14
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• 2013

This study was performed to investigate the effects of ethanolic extract of Ulmus davidiana root (UE) on lipid metabolism in mice fed a high-fat diet (HF) for 7 weeks. Forty male ICR mice were randomly divided into four groups; normal diet group (N), high-fat diet group (HF), HF with 0.5% UE (HF-L) and 1% UE (HF-H) group. Body weight, body weight gain, and liver weight in the HF group was significantly higher than in the N group, while those of the HF-L and HF-H group were unchanged. UE improved HF-induced dyslipidemia by reducing serum triglyceride, total cholesterol, and the atherogenic index. There was no difference in serum HDL-cholesterol among experimental groups. However, the HDL-cholesterol/total cholesterol ratio was significantly increased in the HF-L and HF-H group. Histological analysis showed that HF-fed mice developed hepatocellular microvesicular vacuolation as a result of fat accumulation. These changes were attenuated by 1% UE supplementation. In addition, hepatic triglyceride and cholesterol levels in the HF-H group significantly reduced. Taken together, these results demonstrated that lipid levels in the blood and liver were reduced by UE, suggesting that it might be beneficial for the prevention and treatment of hyperlipidemia and fatty liver.

• Korean Chemical Engineering Research
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• 제46권6호
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• pp.1039-1042
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• 2008

폐폴리우레탄의해중합에의하여제조된재생폴리올의작용기를증가시키기위하여해중합시첨가한 pentaerythritol(PEN, 작용기(f)=4) 또는 sorbitol(SOR, f=6)이 생성된 재생 폴리올의 작용기와 이를 사용하여 제조한 경질 폴리우레탄폼(polyurethane rigid foam; PUR)의 기계적 물성에 미치는 영향을 조사하였다. PEN 또는 SOR를 첨가한 경우 OH 작용기가 2.2에서 약 2.8로 증가하였고, PUR의 치수안전성 등을 비롯한 기계적 물성이 크게 향상됨을 확인하였다. 이러한 결과는 폴리올의 작용기가 증가하여 제조한 PUR의 가교밀도를 향상시킨 것으로 해석되었다. 또한 재생 폴리올의 폴리올 시스템에 대한 사용량을 8 wt%에서 약 20 wt%로 증가시킬수 있었다.

• 한국산학기술학회논문지
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• 제16권11호
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• pp.8001-8011
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• 2015

본 연구의 목적은 오가닉 의류제품의 미래의 실소비자들이라 할 수 있는 대학생소비자를 대상으로 오가닉 의류제품의 평가를 위한 품질 속성들을 찾아서 이를 범주화함으로써 평가기준의 근거를 마련하고 각각의 속성들이 대학생 소비자의 인구통계학적 특성에 따라 수행하는 역할에 대하여 살펴보며 대학생 소비자의 품질평가에 따른 향후 구매의도와의 관련성을 알아보고자 하였다. 조사 대상인 대학생들의 오가닉 의류제품에 대한 평가기준 요인으로는 "심미상징성", "관리성", "기능성"의 3요인으로 나타났다. 결과 첫째, 인구통계학적 특성 중 성별, 관련전공, 용돈에서 오가닉 의류제품의 평가기준과 유의한 차이를 보였으며 연령, 거주지역, 가족소득에서는 유의한 차이를 보이지 않았다. 둘째, 대학생 소비자의 오가닉 의류제품 구매경험집단이 오가닉 의류제품의 평가기준인 "심미상징성", "관리성", "기능성"의 모든 요인에 대해 비구매집단보다 더 중요하게 고려하는 것을 알 수 있었다. 셋째, 오가닉 의류제품 평가기준에 따라 향후 구매의도 집단과 구매의도가 없는 집단에 따라 차이가 있는 것을 알 수 있었는데 "관리성", "기능성"은 두 집단 간에 유의한 차이가 있었다.

• 한국의류학회지
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• 제29권2호
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• pp.254-266
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• 2005

The purpose of this study were to develop snow-board upper wear with improved functionality. The study consisted of figure out appropriate ease amount of snow-board upper wear and make products by applying it to pattern design. The results of this study were as follows : First, The results of examined the difference between naked body measurements of and basic wear. According to motion, chest circumference(4.7cm, 5.1%), back width(8.9cm, 20.7%), and waist back length(8.0cm, 18.3%) increased. Around the elbow the length increased by 4.4cm(21.9%) when it was bent 90 degrees, while it increased by 6.0cm(29.8%) when it was bent to the full(145 degree). Second, 3 snow-board upper wear were selected and evaluated their appearance, comforts, and functionality, and that of the biggest margin proved to be the best. Eases necessary for motion proved to be insufficient especially in neck, arm and wrist parts of upper clothing. Third, on the basis of the analysis of snow-board upper wear on market, 2 pieces of experimental snowboard upper wear were designed, produced, and evaluated the patterns of with different ease, and snowboard upper wear B for experiment was proved to be better, Fourth, Snowboard upper wear was produced and evaluated for experiment 2 by giving additional ease to specific parts. Therefore experiment 2 was presented pattern, ease, and size of snowboard upper wear for with snowboard upper wear with improved functionality.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제11권2호
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• pp.165-179
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• 2005

B2B 전자 상거래 환경에서 기업들은 긴밀한 협력을 필요로 한다 특히 기업 사이의 긴급 협조요청이나 긴급 정보는 즉시 처리 방식으로 협력하여야 한다. 그러나 대부분의 시스템들은 시스템의 독립성과 보안을 위한 방화벽 때문에 이를 적절히 다루지 못하고 있고 ad hoc 방식으로 처리하고 있다. 본 논문에서는 B2B EC 환경에서 기업들의 적기 협력 방안과 이를 지원하는 능동 기능 컴포넌트를 제안한다. 능동 기능 컴포넌트는 고수준의 ECA 규칙 패턴과 사건 기반의 즉시 처리 방식을 지원하므로 시스템 관리자나 프로그래머가 응용 로직과는 별도로 즉시처리 협력을 쉽게 구축하고 유지 보수할 수 있다. 제안하는 능동 기능 컴포넌트는 기업의 방화벽을 통해서도 적용될 수 있도록 HTTP 프로토콜을 사용하였고, 실용성을 위하여 상업용 DBMS를 이용하여 설계하였다.

• 한국융합학회논문지
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• 제10권11호
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• pp.263-273
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• 2019

픽토리얼 타이포그래피는 이미지와 활자의 융합 형태로 문자가 주는 지루함과 이미지가 주는 모호함을 서로의 장점으로 보완하여 쉽고 빠르게 정보를 인지할 수 있도록 한다. 본 연구에서는 A 특성화고 디자인 수업에서 학생 30명에게 총 6차시로 아트프로펠 방식을 픽토리얼 타이포그래피 디자인 수업에 적용하여 지각, 성찰, 창작의 과정에 따라 진행 한 후 학생들의 사전과 사후 설문조사와 작품 분석을 통해 두 가지 평가 요소인 기능성과 심미성의 변화를 분석하여 아트프로펠 교육 과정의 타당성을 검증하고자 한다. 본 연구에서 실시한 사전 사후 평가에서 자기평가와 동료평가를 비교해보면 1차에서보다 2차에서 점수가 향상되었다. 기능성은 자기평가에서는 5.34점이, 동료평가에서는 5.4점이 상승하였고, 심미성은 자기평가에서는 2.1점이, 동료평가에서는 1.8점이 상승하였다. 이 결과로 볼 때 아트프로펠 과정을 통한 픽토리얼 타이포그래피수업이 기능성과 심미성 향상에 도움을 주었으며 심미성보다는 기능성 면에서 효과가 더 크다는 것을 알 수 있다.

• 한국해양바이오학회지
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• 제13권2호
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• pp.94-103
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• 2021

Here, we evaluated the anti-glycation effects and renal protective properties of 70% (v/v) ethanolic extract of Colpomenia sinuosa (CSE) against AGEs -induced oxidative stress and apoptosis at different concentrations (1, 5, and 20 ㎍/mL). At 20 ㎍/mL, CSE showed that anti-glycation activities via the inhibition of AGE formation (51.1%), inhibition of AGEs-protein cross-linking (61.7%), and breaking of AGEs-protein cross-links (33.3%), were significantly (###p < 0.001 vs. non-treated group) lower than the nontreated group. Methylglyoxal (MGO) significantly (***p < 0.001) reduced cell viability (24.4%) and increased reactive oxygen species (ROS) level (642.3%), MGO accumulation (119.4 ㎍/mL), and apoptosis (55.0%) in mesangial cells compared to the nontreated group. Pretreatment with CSE significantly (###p < 0.001) increased cell viability (57.8%) and decreased intracellular ROS (96.5%), MGO accumulation (80.0 ㎍/mL), and apoptosis (22.6%) at 20 ㎍/mL. Additionally, we confirmed intracellular AGEs reduction by CSE pretreatment. Consequently, our results suggest that CSE is a good source of natural therapeutics for managing diabetic complications by the antiglycation effect and renal protective activity against MGO-induced oxidative stress.

• 융합정보논문지
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• 제11권1호
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• pp.216-224
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• 2021

본 연구는 서울·경기 지역의 화장품을 사용하고 있는 18세부터 50대까지 남녀 317명을 대상으로 소비자 특성에 따른 화장품 품질(안전성, 안정성, 기능성, 사용성) 인식과 만족도의 차이를 분석하였고 부작용 경험에 따른 화장품 품질인식이 만족도에 미치는 영향을 분석하였다. 화장품 품질 요인 중 사용성에는 만족하고 있었으나 안전성, 안정성, 기능성 인식은 낮게 나타나 전반적인 품질 개선이 필요하였고 특히 남성과 40대의 화장품 품질 인식과 만족도가 낮게 나타나 이를 위한 맞춤형 솔루션이 필요하였다. 화장품 부작용을 경험한 경우와 안 한 경우 모두 사용성과 기능성의 순서로 만족도에 유의한 양(+)의 영향을 미쳐 사용성과 기능성 인식의 제고가 만족도를 높이는 주요 요인으로 나타났다. 제품의 품질을 개선하고 소비자 인식에 긍정적 영향을 주는 요소들을 보완하는 것이 품질 인식과 만족도 향상에 큰 도움을 줄 것으로 생각된다.

• Nutrition Research and Practice
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• 제17권1호
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• pp.13-31
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• 2023

BACKGROUND/OBJECTIVES: Epigenetic regulation by nutrients can influence the development of specific diseases. This study sought to examine the effect of individual nutrients and nutrient families in the context of preventing chronic metabolic diseases via epigenetic regulation. The inhibition of lipid accumulation and inflammation by nutrients including proteins, lipids, vitamins, and minerals were observed, and histone acetylation by histone acetyltransferase (HAT) was measured. Correlative analyses were also performed. MATERIALS/METHODS: Nutrients were selected according to information from the Korean Ministry of Food and Drug Safety. Selected nutrient functionalities, including the attenuation of fatty acid-induced lipid accumulation and lipopolysaccharide-mediated acute inflammation were evaluated in mouse macrophage Raw264.7 and mouse hepatocyte AML-12 cells. Effects of the selected nutrients on in vitro HAT inhibition were also evaluated. RESULTS: Nitric oxide (NO) production correlated with HAT activity, which was regulated by the amino acids group, suggesting that amino acids potentially contribute to the attenuation of NO production via the inhibition of HAT activity. Unsaturated fatty acids tended to attenuate inflammation by inhibiting NO production, which may be attributable to the inhibition of in vitro HAT activity. In contrast to water-soluble vitamins, the lipid-soluble vitamins significantly decreased NO production. Water- and lipid-soluble vitamins both exhibited significant inhibitory activities against HAT. In addition, calcium and manganese significantly inhibited lipid accumulation, NO production, and HAT activity. CONCLUSIONS: Several candidate nutrients and their family members may have roles in the prevention of diseases, including hepatic steatosis and inflammation-related diseases (i.e., nonalcoholic steatohepatitis) via epigenetic regulation. Further studies are warranted to determine which specific amino acids, unsaturated fatty acids and lipid-soluble vitamins or specific minerals influence the development of steatosis and inflammatory-related diseases.