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      • KCI등재

        2015년도 이후 패션 컬렉션에 나타난 오버사이즈 룩의 의복구성 특성 분석

        김경아,김경아 복식문화학회 2019 服飾文化硏究 Vol.27 No.5

        Oversized fashion is again in the spotlight due to the influence of retro fashion. This has created new fashion trends with methods different from those of the past. This analysis examines recent trends by sorting these looks according to new and different methods of judging their appearance. A new categorization of the oversized look and its configurations has been created, one which separates “big” looks, partial changes, and layered looks. This research was based on historical review and previous studies. Three thousand one hundred thirty-six photos of oversized looks that have appeared in collections over the past five years were gathered, and their appearance was categorized according to type. The categorization results showed that big looks (55.1%) were most prevalent, followed by partial alterations (36.35%), and layered looks (8.45%). In comparison to prior oversized clothing production, new permutations of the “Big” look expanded the silhouettes of torso, shoulders, neckline and collar. Partial changes have expanded from the broadened shoulders of the 1980s. Today these styles expand the shoulders and armholes vertically or horizontally, which dramatically exaggerates the sleeves and collar. The layered look no longer simply features overlapping layers but takes the form of over-layering through cuts and insertions. Through such analysis it is clear that modern oversized looks break away from the simple expanded forms and production methods of the past. They now attempt to realize an exaggerated beauty of form regarding each clothing component and also maximize decorative effects through innovative drafting or sewing methods.

      • KCI등재

        기술․가정 2 교과서 ‘에너지와 수송 기술’ 단원 분석

        김경아,최준섭 한국기술교육학회 2013 한국기술교육학회지 Vol.13 No.3

        The purpose of this study was to provide a basis for development of teaching and learning materials through the analysis of the 'Energy and Transportation Technology' Unit of Technology and Home-Economics 2 Textbook. For this study, we analyzed rate of units configuration, configuration system, subjects of activities and contents of activities task of 12 kinds of Technology and Home-Economics 2 Textbook. The results of this study are as follows;First, Technology and Home-Economics 2 Textbook is comprised of 「Manufacturing technology and automation」, 「Energy and Transportation Technology」, 「Bio-technology and Technology of the future」in the Technology part. The unit of 'Energy and Transportation Technology' occupied 14.5~19.1% of the whole textbook. Second, one to seven numbers of various activity task was suggested on each unit in order to help the students understand effectively. However, most activities were consisted of exploration and investigation activities. Third, analysis of the activities on the unit of 「Transportation Technology Experience and Problem-Solving Activities」was emphasized with activities for improvement of creative problem-solving ability. However, some activities are presented only the process of making assignments or to be focused on making cars. Based on the above study results, the study of the development of the various types of activities or a wide range of subjects will be required for getting more understanding of Technology Education. 이 연구의 목적은 중학교 기술․가정 2 교과서의 ‘에너지와 수송 기술’ 단원의 분석을 통하여 ‘에너지와 수송 기술’ 단원 수업의 교수․학습 자료 개발을 위한 기초 자료를 제공하는 것이다. 이 연구를 위해 중학교 기술·가정 12종 교과서의 단원 구성 비율과 구성 체계를 분석하고 탐구활동 주제 및 체험활동의 내용을 분석하였다. 이 연구의 결과는 다음과 같다. 첫째, 기술․가정 2 교과서는 기술의 세계 분야에 「제조 기술과 자동화」, 「에너지와 수송 기술」, 「생명 기술과 미래의 기술」로 구성되어져 있다. 이중 「에너지와 수송 기술」단원의 비중은 14.5~19.1%를 차지하고 있다. 둘째, ‘에너지와 수송 기술’ 의 [에너지와 동력], [수송 기술의 세계] 중단원에서 학생들의 내용 이해를 돕기 위해 중단원 별로 1~7개의 다양한 활동 과제가 제시되었다. 하지만 대부분이 탐구나 조사 활동에 치우치고 있다. 셋째, [수송 기술 체험과 문제 해결 활동] 단원의 체험 활동 내용 분석 결과 교육과정에서 요구하는 창의적 문제 해결 능력 향상을 위한 체험 활동이 강조되고 있다. 하지만 일부 과제는 체험 활동 과제가 만들기 과정만 제시되어 있거나, 자동차 만들기에 치중하고 있다. 이 연구의 결과를 바탕으로 기술 교육의 이해를 위해 다양한 활동 과제 수행 방법이나 체험 활동 주제 개발에 대한 연구가 필요함을 제언한다.

      • KCI등재

        Effect of a soluble prebiotic fiber, NUTRIOSE, on the absorption of ginsenoside Rd in rats orally administered ginseng

        김경아,유혜현,Wan Gu,Dae-Hyung Yu,Ming Ji Jin,Hae-Lim Choi,Kathy Yuan,Laetitia Guerin-Deremaux,김동현 고려인삼학회 2014 Journal of Ginseng Research Vol.38 No.3

        Background: There is limited understanding of the effect of dietary components on the absorption ofginsenosides and their metabolites into the blood. Methods: This study investigated the pharmacokinetics of the ginseng extract and its main constituentginsenoside Rb1 in rats with or without pretreatment with a prebiotic fiber, NUTRIOSE, by liquidchromatography tandem mass spectrometry. When ginsenoside Rb1 was incubated with rat feces, itsmain metabolite was ginsenoside Rd. Results: When the intestinal microbiota of rat feces were cultured in vitro, their ginsenoside Rd-formingactivities were significantly induced by NUTRIOSE. When ginsenoside Rb1 was orally administered torats, the maximum plasma concentration (Cmax) and area under the plasma drug concentrationetimecurve (AUC) for the main metabolite, ginsenoside Rd, were 72.4 31.6 ng/mL and 663.9 285.3 mg$h/mL, respectively. When the ginseng extract (2,000 mg/kg) was orally administered, Cmax and AUC forginsenoside Rd were 906.5 330.2 ng/mL and 11,377.3 4,470.2 mg$h/mL, respectively. When ginsengextract was orally administered to rats fed NUTRIOSE containing diets (2.5%, 5%, or 10%), Cmax and AUCwere increased in the NUTRIOSE receiving groups in a dose-dependent manner. Conclusion: These findings reveal that intestinal microflora promote metabolic conversion of ginsenosideRb1 and ginseng extract to ginsenoside Rd and promote its absorption into the blood in rats. Its conversionmay be induced by prebiotic diets such as NUTRIOSE.

      • KCI등재

        Acteoside Inhibits Irradiation-mediated Decreases in the Viability and DNA Synthesis of MC3T3-E1 Cells

        김경아,이승아,김기현,이근수,이정채 한국식품과학회 2013 Food Science and Biotechnology Vol.22 No.3

        Therapeutic irradiation can cause bone loss,whereas antioxidant supplementation is considered to attenuate irradiation-mediated damages. This study examined whether or not acteoside inhibits irradiation-mediated changes in viability and proliferation of MC3T3-E1 cells. X-ray radiation at >4 Gy not only decreased cell viability and DNA synthesis in the cells, but also increased intracellular levels of reactive oxygen species (ROS) and phosphorylated p66Shc protein. Irradiation at 8Gy also decreased intracellular levels of reduced glutathione (GSH) and induced G1 phase arrest of cell cycle progression with the attendant increase of p21 induction. Pretreatment with acteoside inhibited the irradiation-mediated decreases in viability and DNA synthesis by restoring the radiation-mediated changes in the levels of ROS, GSH, p21, and p-p66Shc to the untreated control levels. These inhibitory activities of acteoside were greater than that of a synthetic antioxidant compound or N-acetyl cysteine did. Collectively, acteoside treatment may prevent irradiation-induced oxidative damages to osteoblasts.

      • KCI등재

        강원도 내륙 북부지역의 민속식물

        김경아,한준수,천경식,장진환,옥길환,유기억 한국자원식물학회 2012 한국자원식물학회지 Vol.25 No.1

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        강원도 내륙 북부지역에 대한 민속식물을 파악하기 위하여 2010년 4월부터 10월까지 수행되었다. 9개 시・군지역의35개소에서 조사한 자료를 분석한 결과 강원도 내륙북부지역에서 파악되고 수집된 민속식물은 73과 185속 225종2아종 30변종 4품종으로 총 261분류군으로 정리되었다. 조사된 261분류군 중에는 한국특산식물 3분류군, 희귀식물 11분류군, 그리고 귀화식물 9분류군이 포함되어 있었다. 용도별 이용 현황은 식용 378건, 약용 53건, 염료용 8건,관상용 7건, 연료용 6건, 향신료용 5건, 향료용 3건, 밀원용 2건, 그리고 기타 41건으로, 식용으로의 이용 빈도가 가장 높았다. 이용 부위로는 잎, 식물체 전체, 뿌리의 순으로나타났다. 연령별 표준식물명과 지방명의 일치도는 20대가 가장 높았으며, 80대가 가장 낮았다. the survey results from 35 places of 9 counties and cities from April to October, 2010, the folk plants in inland of northern region of Gangwon-do consisted of a total 261 taxa; 73 families, 185 genera, 225 species, 2 subspecies, 30 varieties, and 4form. Among the investigated 261 taxa, 3 Korean endemic, 11 rare plants and 9 naturalized plants were also included. The use by usage of 261 taxa was: 378 times; Edible, 53 times; Medicinal, 8 times; Dye, 7 times; Ornamental, 6 times; Fuel, 5times; Spice, 3 times; Aroma, 2 times; Nectar, 41 times; Others, respectively, so the edible use is the highest. The most useful part was the leaf, followed by whole plant and root. The consistency comparison between the scientific name and the local name were the highest in the 20’s and the lowest in 80’s.

      • KCI등재

        Facile Preparation of Silver Nanoparticles and Application to Silver Coating Using Latent Reductant from a Silver Carbamate Complex

        김경아,차재령,공명선 대한화학회 2013 Bulletin of the Korean Chemical Society Vol.34 No.2

        A low temperature (65 oC) thermal deposition process was developed for depositing a silver coating on thermally sensitive polymeric substrates. This low temperature deposition was achieved by chemical reduction of a silver alkylcarbamate complex with latent reducing agent. The effects of acetol as a latent reducing agent for the silver 2-ethylhexylcarbamate (Ag-EHCB) complex and their blend solutions were investigated in terms of reducing mechanism, and the size and shape of silver nanoparticles (Ag-NPs) as a function of reduced temperature and time, and PVP stabilizer concentration were determined. Low temperature deposition was achieved by combining chemical reduction with thermal heating at 65 oC. A range of polymer film, sheet and molding product was coated with silver at thicknesses of 100 nm. The effect of process parameters and heat treatment on the properties of silver coatings was investigated.

      • KCI등재

        Correlation of expression and activity of matrix metalloproteinase-9 and -2 in human gingival cells of periodontitis patients

        김경아,정수봉,노승현,송권호,김한나현,김철호,박영국 대한치주과학회 2013 Journal of Periodontal & Implant Science Vol.43 No.1

        Purpose: Matrix metalloproteinases (MMPs) are capable of degrading extracellular matrix, and they are inducible enzymes depending on an inflammatory environment such as periodontitis and bacterial infection in periodontal tissue. Gingival inflammation has been postulated to be correlated with the production of MMP-2 and MMP-9. The objective of this study was to quantify the expression and activity of MMP-9 and -2, and to determine the correlation between activity and expression of these MMPs in human gingival tissues with periodontitis. Methods: The gingival tissues of 13 patients were homogenized in 500 μL of phosphate buffered saline with a protease inhibitor cocktail. The expression and activity of MMP-2 and -9 were measured by enzyme-linked immunosorbent assay and Western blot analysis, and quantified by a densitometer. For the correlation line, statistical analysis was performed using the Systat software package. Results: MMP-9 was highly expressed in all gingival tissue samples, whereas MMP-2 was underexpressed compared with MMP-9. MMP-9 activity increased together with the MMP-9 expression level, with a positive correlation (r=0.793, P=0.01). The correlation was not observed in MMP-2. Conclusions: The expression of MMP-2 and -9 might contribute to periodontal physiological and pathological processes, and the degree of MMP-9 expression and activity are predictive indicators relevant to the progression of periodontitis.

      • KCI등재

        음운변화와 패러다임의 상관관계

        김경아 단국대학교 동양학연구원 2011 東洋學 Vol.49 No.-

        This paper examines a correlation between the phonological change and the paradigms. ‘β>w’ is the famous formula by the regularity of phonological change. The ‘β>w’ processes evidently affect the restructuring of underlying form and they push forward the direction of ‘>와/>워/>오/>우’ on the majority of paradigms. But there is a serious exception against ‘β>w’, w disappears on some derivational paradigms like ‘>이’In fact, the argument about ‘>이’ processes mainly focuses on changes in the phonological system. Up to the present, the restructuring related paradigms rises up as the important issue of phonology and morphology. As you know, ‘paradigmatic analogy’ and ‘reanalysis’ should be critical facts on the restructuring. Based on this approach, I argue in favor of the paradigmatic analogy on ‘>이’ change. The reason why paradigms are so important for the analogical mechanism is that there are some examples for restructuring hard to explain through the rule mechanism. Nevertheless, the argument about analogical processes and paradigmatic analogy is not examined thoroughly. In this paper, I try to explain the paradigmatic analogy between inflectional paradigms and derivational paradigms. Especially, I concentrate on the analogy cross some paradigms related the phonological change. 우리는 이 논문에서 순경음의 변화에서 원순성이 사라지는 예외적인 변화가 특정의 파생 패러다임의압력에 의해서라는 사실에 주목하여 기존의 음운론적인 설명의 한계를 극복해 보려고 하였다. 이와 같은설명은 피사동 파생접사 ‘-이-’나 부사 파생접사 ‘-이’가 결합하는 파생 패러다임의 생산성에 근거한 것인데, 이 경우의 생산성은 결합 가능성과 분석 가능성을 모두 고려한 것이다. 즉 ㅸ말음 어간과 파생접사들의 결합에서 원순성이 소거되는 이유가 파생접사들에 대한 분석 가능성과 관련이 있음을 확인하여 ‘분석’이 접사들의 생산성을 확인하는 기준이 될 수 있음을 검토하였다. 따라서 파생접사들에 대한 화자와 청자의 분석력이 ㅸ>w라는 변화에 저항하여 이들 파생접사의 ‘이’라는 표면음성형을 유지할 수 있도록 하였다고 보았다. 또한 접사 이형태의 선택이 달라지면서 새로운 파생어들이 재형성되는 문제도 분석에 근거한 파생 패러다임의 생산성에 따른 것이라는 결론에 이르렀다. 이와같은 논의는 표면발화를 산출하는 과정에서 형태소들 간의 결합에 근거하여 공시적 생산성의 개념을 정의하는 입장에 대하여 재고의 여지가 있음을 보여주는 것이다. 또한 굴절 패러다임에 비해 상대적인 생산성의 차이는 있더라도 파생 패러다임을 통시적인 변화의 결과로 처리해 버리려는 음운론의 기술 태도는 반성할 필요가 있음을 말해주는 것이다. 끝으로 새로운 파생어의 형성이 파생 패러다임을 넘어서 활용 패러다임과의 상관관계 속에 만들어짐을 확인하여 패러다임 간의 유추가 문범 범주의 틀을 넘어설 수 있는 것은 아닐까 하는 조심스러운 추정역시 해보았다.

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