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      • KCI등재

        면접조사를 통한 초등학생의 영양교육 실태 및 실천도 조사

        오유진,이영미,김정현,안홍석,김정원,박혜련,서정숙,김경원,권오란,박혜경,이은주,성현이 대한지역사회영양학회 2008 대한지역사회영양학회지 Vol.13 No.4

        This study investigated the experience and practice of elementary school students on nutrition education. The data were collected from 217 male and female students attending 5-6th grade elementary schools in Seoul and Kyunggi-Do from March to June 2007, interviewing face to face by a nutrition teacher and 3 interns of a nutrition teacher. The results were as follows: 86.5% of the subjects learned about ‘Table etiquette’, ‘Reasons for eating fruits and vegetables’ (78.7%), ‘Food waste and environment’ (72.3%), ‘Healthy snacks’ (55.7%), ‘Food sanitation’ (52.3%), ‘Food culture of foreign countries’ (48.1%). Nutrition education experience was significantly different by gender. A total of 43.5% boys responded that they never learned about ‘basic food preperation’ (p < 0.01). They had learned ‘Nutrients for body’ and ‘Food waste and environment’ in school, ‘Healthy weight loss’, ‘Food culture of foreign countries’, ‘Food circulation’ on television, Most content (‘Table etiquette’, ‘Simple cooking’, ‘Food sanitati n’, ‘Eating behaviors for health’, ‘Reasons for eating fruits and vegetables’, ‘Healthy snacks’) was learned from parents. The practice after nutrition education was higher in ‘Table etiquette’ (2.14), ‘Eating fruits and vegetables’ (2.07) than others compared with education experience. The most reason of non-practice on nutrition information was ‘Troublesome’. In ‘Nutrients for body’, a boy answered ‘Difficult for practice’ 20.0%, a girl answered ‘Difficult to understand’ 32.6%, showing a significant difference between the gender groups (p < 0.001). They remembered the ‘Nutrients for body’ (49.6%), ‘Food sanitation’ (44.5%) because of ‘important content’,‘Basic food preparation’ (40.6%), ‘Food culture of foreign countries’ (36.3%) because of ‘interesting content’, ‘Healthy weight loss’ (52.0%), ‘Eating behavior for health’ (44.5%) and ‘Healthy snacks’ (33.7%) because of ‘need for my health’.

      • 수퍼차저에 의한 가솔린 機關의 性能에 관한 硏究

        김동기,신이건,전봉준,박찬준 서울産業大學校 1995 논문집 Vol.41 No.1

        The supercharging characteristics and the combustion performance of the spark iginition engine are investigated through the experiments. The apparatuses used in the experiment are the carburetor type 1468cc Gasoline Engine and the screw type supercharger. A supercharger pulley and a water pump pulley through V-belt are connected to the engine. The diameter of supercharger pulley is 63mm. The diameter of water pump pulley used are 63mm and 135mm,repectively.A optical senser is used to measured the speed of a engine. The pressure in first cylinder is measured. The rate of pressure rise and the rate of heat release are calculated. The engine speed considered is increased by 500rpm from 1500rpm to 3500rpm. It is found that the supercharging characteristics and the combustion performance in case of the engine with supercharger are increased at low speed range. Compared the supercharged engine with the natually aspirated engine, the most effects of supercharging on the torque and the rate of maximium pressure rise are observed at 2000rpm and 1500rpm, respectively.

      • KCI등재

        Genome‑wide identification and molecular characterization of cysteine protease genes in rice

        Marjohn C. Niño,Me‑Sun Kim,Kwon-Kyoo Kang,조용구 한국식물생명공학회 2020 Plant biotechnology reports Vol.14 No.1

        Cysteine protease activity comprises the majority of proteolytic activities in plants. They are involved in almost every facet of the plant’s development. Accumulating evidence indicates multiple roles of this protease type in response to biotic and abiotic stress. To understand the regulations and functions of cysteine protease in rice, its evolutionary and structural evidence was uncovered in this study. Using MEROPS, a peptidase database, the 74 rice cysteine proteases belonging to six families were queried. Each of these families represents distinct proteolytic enzyme; C1 is a papain-like protease, C2 is a calpain- 2-type, C12 is an ubiquitinyl hydrolase-L1 enzyme, C13 is legumain, C14 is a caspase-1 type, and C15 is a pyroglutamyl peptidase 1 enzyme type. Evolutionary expansion attributed to gene duplication and diversification was particularly evident in C1 family which showed the highest number (n = 53) of members, most of which contained the highest number and most variable introns and motifs, whereas families C13, C14, and C15 had only a few members which all contained lesser number and variation of intron and motif. Out of 74 total cysteine protease gene members, 73 were globular proteins and 55 were predicted as stable proteins. Spatial expression assay of selected C1 members showed that LOC_Os01g73980 and LOC_Os05g01810 were highly expressed in the stem and leaves, while LOC_Os02g27030 was constitutively expressed in all tissues. The expression of LOC_Os01g73980 and LOC_Os05g01810 was also highly activated by salinity stress, while LOC_Os02g27030 was activated by both salinity and heat. LOC_Os05g01810 overexpression transgenic rice exhibited moderate tolerance to salinity stress, which provides interesting clues on biological functions of these genes in rice.

      • 석유 화학 공장 폐수처리를 위한 고정생물막공법의 Pilot Plant 적용

        이종현,남해욱,김미화,박태주 부산대학교 환경문제연구소 1998 環境硏究報 Vol.16 No.-

        The pilot plant of biological fixed-film process(BFFP) was developed to treat the petrochemical wastewater with high organic loading rate, where a stationary biofilm was attached to net-type media(SARAN 1000D) under diffused aeration. The specific surface area of SARAN 1000D was 400 ㎡/㎥ approxirnately. The organic removal ability was tested in the pilot-scale three biological fixed-film reactors. The pilot scale reactor demonstrated more than 95% effciency in removing chemical oxygen demand(COD) at B reactor with 20% Packing ratio. The reactor also showed stable performance at the organic loading rates of 1.27~3.12 ㎏ COD/㎥/day. The effluent COD and SS concentrations of the pilot scale reactors were more unstable than those of the lab scale reactors. Based on the experimental results, the BFFP could be suitable for pre-treatment petrochemical wastewater with relatively high organic loading rate.

      • KCI등재

        김정은시기 무용연구 - 전통의 복원과 비물질무용유산을 중심으로 -

        김지니 ( Kim Ji Ni ) 동국대학교 안보연구소 2021 북한학연구 Vol.17 No.2

        북한에서 민족은 정치의 기본 단위이자 문화의 기본 단위이다. 민족을 기본으로 정치가 형성되고, 문화를 형성한다는 입장이다. 민족문화는 그 민족의 역사성과 문화적 정통성을 뒷받침하는 자료로 인식하였다. 북한 정권도 이런 점에서 민족문화 정책을 추진하였다. 대외적으로 외부의 문화적 침투에 맞서고, 대내적으로 민족문화의 자긍심을 심어줌으로써 김일성 민족의 선민(選民)으로서 우수성을 민족문화를 통해 보여주고자 하였다. 북한의 민족문화정책은 김정은 시대에 이르면서 이전과는 다른 방향으로 전개되고 있다. 김정은 정권에서 강조하는 변화와 맞물려 적극적인 세계화를 추진하고 있다. 북한 정권은 위기 상황에서 민족을 호명하였다. 그리고 민족적 특수성에 기대어 대외적인 위기를 넘어왔다. 그러나 김정은은 이전 정권이 민족주의를 대외적 방패로 활용하였던 것과 달리 고립과 폐쇄에서 벗어나 세계 속의 당당한 문화국가로서 민족문화정책을 추진하고 있다. 현재 김정은 정권의 문화예술정책은 민족문화 유산을 국가유산으로서 적극적인 보호와 활용에 무게를 두고 있다. 국가로서 오랜 문화의 전통성을 비물질문화유산을 통해 확인하고, 경제적인 활용도를 높여 헤리티지로서 활용하고 있다. 북한 정권 수립 이후 강조한 ‘현대적 전승’보다는 ‘민족문화의 원형’ 보전에 중점을 두고 있다. 민속무용에서도 현대성보다는 역사성에 더 무게를 두고, 원형보존, 원형계승으로 나아가고 있다. 이는 또 다른 차원의 북한 사회의 세계화, 그리고 정상국가로의 진입과 맞물려 발전할 것이다. After 2010, Kim Jong-un regime have a quite different action from the previous one in the stronger economic sanctions, The Kim Jong-un regime seek change and transformation in all areas of society. It is also true that policy changes and social systems, sometimes called innovation, have been transformed into crisis response systems whenever the North Korean regime faces a crisis. However, the separation of the Kim Jong-un regime from the Kim il-sung and Kim Jong-il is actively making efforts to become a proud and normal state in the world, free from isolation and closure, and also reflect this in their policies. In the midst of these changes, the Kim Jong-un regime is pushing for changes in cultural heritage policies as a means of globalization strategy. In particular, it is noted that the period when the immaterial cultural heritage policy is incorporated into the legal system and the period when the Kim Jong-un regime emerges as real power, are intertwined. The driving force of change can be found in the “socialist civilization”, one of the representative policies of the Kim Jong-un regime. The Kim Jong-un regime set the national goal of building a socialist civilized country, and induces them to gather in all areas of society, including economy, education, health, sports, social culture, and arts, with the goal of building a socialist civilized country. Among these, non-material cultural heritage promotes internal convergence by emphasizing the excellence of the country As a normal country, it promotes the image of the country both internally and externally, Under the economic benefits through tourism,service trade, the Kim Jong-un regime has revised at a three times, been raising its status among the major policies of the Kim Jong-un regime. As North Korea’s immaterial cultural heritage, folk dance is uniquely linked among various immaterial cultural heritages specified by the law such as national games, national customs, holiday events, various ceremonies, and stage arts. It is also linked to other genres, such as folk songs, traditional music, and costumes. The characteristics acquired through policy in North Korea’s political society reflect the wide range of traditional cultures and historical layers and status of national culture, as well as the politics and society of the North Korean regime of the time.

      • KCI등재

        Analysis of Toothbrushing Force on Various Brushing Method

        Sang Mi Jeon,Kou ni,Sang Woo Kim,Ji Sun Kim,Ok Joon Kim,Hong Ran Choi,Ok Su Kim 대한구강악안면병리학회 2015 대한구강악안면병리학회지 Vol.39 No.1

        The aim of this study was to carry out the comparative analysis of the brushing force following various brushing techniques bytoothbrush mounted pressure sensing unit. The study group consisted of 10 dental hygienist participants. The brushing forces (on buccal area of each first molar) were monitored on 8 different kinds of brushing techniques; Fones, Bass, Rolling, Scrub, Charters, stillman, Modified bass and Modified stillman. In Bass, Charters, Fones and Scrub method, force distributions showed a small gap of maximum and minimum value (Max/Min) while a big difference was noted in Modified bass, Modified stillman, Rolling and Stillman methods. Especially, the biggest difference of Max/Min value was observed in the area of lower left first molar. In conclusion, highly delicate manual skill is needed in showing big error range of force distribution. It means that careful force needs to be focused during toothbrushing instruction when a delicate manual skill was carried out.

      • AHCISCOPUSKCI등재
      • SCIEKCI등재

        Effect of Phytohormones and Chemical Inhibitors on Pathogenesis-related Genes Identified by Differential Hybridization in Rice Suspension Culture Cells

        Kim, Sang-Gon,Wu, Jing-Ni,Wang, Yiming,White, Ethan E.,Choi, Young-Whan,Kim, Keun-Ki,Choi, In-Soo,Kim, Yong-Cheol,Kim, Sun-Hyung,Kang, Kyu-Young,Kim, Sun-Tae The Korean Society of Plant Pathology 2010 Plant Pathology Journal Vol.26 No.4

        In order to study disease resistance mechanisms in rice against the rice blast fungus Magnaporthe grisea, we screened fungal elicitor-responsive genes from rice suspension-cultured cells treated with fungal elicitors employing differential hybridization (DH). By DH screening, 31 distinct rice clones were isolated and a majority of them were full-length cDNAs encoding pathogenesisrelated (PR) genes. Sixteen of the 31 genes were upregulated at 4, 8, and 12 h following fungal elicitor treatment. To elucidate the effect of signal molecules and biotic elicitors on the regulation of rice defense genes, we further characterized the transcriptional expression patterns of representative isolated PR genes; OsGlu1, OsGlu2, OsTLP, OsRLK, and OsPR-10, following treatment with fungal elicitor, phytohormones, cycloheximide, and inhibitors of protein phosphorylation. Jasmonic acid (JA) induced transcriptional expression of OsGlu1, OsTLP, and OsRLK, but not of OsGlu2 and OsPR-10 at any of the tested time points. Salicylic acid (SA) and abscisic acid weakly induced the expression of OsTLP and OsRLK. SA showed an antagonistic effect with fungal elicitor and JA. Cycloheximide suppressed all these genes upon elicitor treatment, except for OsGlu2. Staurosporine only induced the expression of OsRLK. Application of calyculin A strongly induced OsRLK expression, but suppressed the expression of OsGlu2. Our study yielded a number of PR genes that play a role in defense mechanisms against the rice blast fungus, as well as contribute towards the elucidation of crosstalk between phytohormones and other modifications during defense signaling.

      • SCIESCOPUSKCI등재

        Effect of Bacteriocin-Like Inhibitory Substance (BLIS) from Enterococcus faecium DB1 on Cariogenic Streptococcus mutans Biofilm Formation

        Kim, Ni-Na,Kim, Bong Sun,Lee, Han Bin,An, Sunghyun,Kim, Donghan,Kang, Seok-Seong Korean Society for Food Science of Animal Resource 2022 한국축산식품학회지 Vol.42 No.6

        The aim of the study was to investigate the effect of bacteriocin-like inhibitory substance (BLIS) from Enterococcus faecium DB1 on cariogenic Streptococcus mutans biofilm. Crystal violet staining, fluorescence, and scanning electron microscopy analyses demonstrated that the BLIS from Enterococcus faecium DB1 (DB1 BLIS) inhibited S. mutans biofilm. When DB1 BLIS was co-incubated with S. mutans, biofilm formation by S. mutans was significantly reduced (p<0.05). DB1 BLIS also destroyed the preformed biofilm of S. mutans. In addition, DB1 BLIS decreased the viability of S. mutans biofilm cells during the development of biofilm formation and in the preformed biofilm. DB1 BLIS significantly decreased the growth of S. mutans planktonic cells. Furthermore, S. mutans biofilm on the surface of saliva-coated hydroxyapatite discs was reduced by DB1 BLIS. Taken together, DB1 BLIS might be useful as a preventive and therapeutic agent against dental caries caused by S. mutans.

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