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      • KCI등재

        A corpus-based study of green discourse in the South Korean press in comparison with the US press

        Bang Min-hee,Shin Seo-in 한국사회언어학회 2012 사회언어학 Vol.20 No.1

        Bang, Min-hee·Shin, Seo-in. 2012. A corpus-based study of green discourse in the South Korean press in comparison with the US press. The sociolinguistic Journal of Korea 20(1). pp. 79-110. This paper analyses corpora of South Korean and US newspapers to investigate the representation of environmental issues. The analysis focuses on the frequency and collocation of 녹색(noksaek: green) denoting environmental- friendliness. As a corpus-based study, the analysis aims to show how environmental issues are construed in the use of noksaek through collocational patterns and the context in which it occurs. The English word green is analysed for comparison as the English translation equivalent of noksaek. 그린(grin: green), a phonetic translation of green is also included in the analysis. The most characteristic of the green discourse in the South Korean press is expressed in 성장(seongjang: growth), the top collocate of noksaek. The construal of environmental issues as a matter of economic growth is a distinctively Korean approach, contrasting with the ways the issues are talked about in the US press. The use of grin(green) in the South Korean press shows that grin(green) is mainly used in the commercial sector and often to mask an un-green aspect of an entity modified by the word. (172 words)

      • DTC를 이용한 새로운 파라메터 추출법

        서용진,신희갑,이철인,장의구 중앙대학교 기술과학연구소 1994 기술과학연구소 논문집 Vol.24 No.-

        In the manufacturing of VLSI circuits, variations of device characteristics due to the slight differences in process parameters drastically aggravate the performances of fabricated devices. Therefore, it is very important to establish optimal process conditions in order to minimize device sensitivities. In this paper, we used one-dimensional process simulator, SUPREM-Ⅱ, and two-dimensional device simulator, MINIMOS 4.0 in order to extract optimal process parameter which can minimize changes of the device characteristics caused by process parameter variation in the case of short channel nMOSFET and pMOSFET device. From this simulation, we have derived the dependence relationship between process parameters and device characteristics. Here, we have presented a method to extract process parameters from design trend curve(DTC)obtained by process and device simulations.

      • 地衣類의 脂質과 蛋白質 含量

        徐信惠,李鴻善,崔璟姬,崔正渼 효성여자대학교 가정대학 학도호국단 1984 家政大論集 Vol.3 No.-

        地衣類의 영양학적 가치를 조사하기 위하여 地衣類(지붕, 바위, 나무)와 석이의 總脂質 含量, 脂質 분포, 脂肪酸 조성, 蛋白質 含量을 측정하였다. 그 결과 총지질 함량은 100g당 석이는 3.47g, 바위에 地衣類는 3.40g, 지붕의 地衣類는 3.17g, 나무의 地衣類는 2.73g 이었고 TLC法에 의한 脂質의 분포는 석이와 地衣類 모두 cholesterol ester와 phospholipid 등이 있었고 나무 地衣類에는 TG 및 cholesterol의 흔적을 보였다. 지방산 조성은 대부분 C_12~C_18 fatty acid였고 그 중 C_18 : 1 C_18 : 2인 것이 50% 정도로 높게 나타났다. 나무의 地衣類에는 C_18 이상의 fatty acid도 상당량 분포되어 있었으며 C_20.4 fatty acid는 18.9%였다. 단백질 함량은 석이 6.60g, 地衣類는 8.22g이었다. To investigate the nutritional value of lichens, contents of total lipid, compositions of fatty acids, distributions of lipids and contents of total proteins in lichens (on the rock, roof and tree) and sogi were examined. The results were summarized as follow. The contents of total lipid in sogi, rock, roof, and tree lichens were 3.47±0.05%, 3.40±0.09%, 3.17±0.02%, 2.73±0.04% respectively. Lipids in all them were cholestrol ester and phospholidpid, and TG and cholesterol were existed only the lichen on the tree. Fatty acids were composed of that of carbon number 12-18; C_18:1 and C_18:2 were about 50%, Contents of total protein in sogi and lichen (roof) were 6.60% and 8.22% respectively.

      • 신경망을 이용한 ATM 망에서 트래픽 제어에 관한 연구

        서동신,김희철,임방택,나상동 조선대학교 동력자원연구소 1996 動力資源硏究所誌 Vol.18 No.1

        A traffic control using back-propagation neural networks propose for the ATM communications networks. This paper proposes adaptive call admission control using back-propagation algorithm in link capacity control. In this paper, back-propagation algorithm is trained to estimate call admission rate from traffic load and link capacity, and link capacity assignment is optimized by back-propagation algorithm method which used learning rate and moment term. Therefore, simulation results yield efficient ATM traffic control which use neural networks training between quality of service(QOS) and traffic parameter in the number of class 1, 2 and evaluate call loss rate 10exp(-6) using the Erlang-Bequation by trained back-propagation neural networks.

      • KCI등재

        다변량 기법을 이용한 혼합치열기 분석법

        서승현,안홍석,이신재,임원희,김봉래 대한치과교정학회 2009 대한치과교정학회지 Vol.39 No.2

        본 연구는 다변량 기법을 도입하여 치아 크기의 다양성을 고려하면서 정확성이 높은 혼합치열기 분석법을 개발하기 위해 시행되었다. 견치 및 소구치 크기를 예측하는 데 이용된 변수는 상악 중절치, 상악 제1대구치, 하악 중절치, 하악 측절치 및 하악 제1대구치로서 총 5개 치아 크기 변수가 이용되었다. 우선 정상교합자 연구 표본 307명을 5개 치아 변수를 이용하여 k-means 군집 분석으로 치아 크기에 따라 나눈 후 판별식을 이용, 치아 크기가 큰 그룹과 작은 그룹으로 분류하였다. 이후 견치와 소구치 크기의 합을 예측하기 위하여 남녀별, 상하악별, 치아 크기 그룹별로 다중 선형 분석을 이용하여 회귀식을 구했다. 검증 표본에는 504명의 부정교합자가 이용되었으며, 이들에 대하여 정상교합자로부터 도출된 판별식을 이용하여 2그룹으로 할당한 후 정상교합자로부터 도출된 회귀식을 이용하여 상악과 하악의 견치 및 소구치 크기 합을 예측하였다. 오차 분석 결과 정상교합자는 최대 0.71, 부정교합자 검증표본은 최대 0.82 mm의 residual standard deviation 값을 보였다. 부정교합 분류별, 치아 크기 패턴별로 예측 오차의 유의한 차이는 없었다. 1 mm 및 2 mm 이상의 예측 오차를 보인 빈도는 각각 17.3%와 1.8%였다. 본 연구 결과 도출된 혼합치열기 분석법은 기존의 연구들과 비교하여 그 정확성이 높은 것으로 고찰되었다. 다만, 임상 적용 시 복잡한 계산 과정으로 인하여 전산화 환경에서 더욱 유용할 것으로 생각된다. Objective: To develop a mixed dentition analysis method in consideration of the normal variation of tooth sizes. Methods: According to the tooth-size of the maxillary central incisor, maxillary 1st molar, mandibular central incisor, mandibular lateral incisor, and mandibular 1st molar, 307 normal occlusion subjects were clustered into the smaller and larger tooth-size groups. Multiple regression analyses were then performed to predict the sizes of the canine and premolars for the 2 groups and both genders separately. For a cross validation dataset, 504 malocclusion patients were assigned into the 2 groups. Then multiple regression equations were applied. Results: Our results show that the maximum errors of the predicted space for the canine, 1st and 2nd premolars were 0.71 and 0.82 mm residual standard deviation for the normal occlusion and malocclusion groups, respectively. For malocclusion patients, the prediction errors did not imply a statistically significant difference depending on the types of malocclusion nor the types of tooth-size groups. The frequency of prediction error more than 1 mm and 2 mm were 17.3% and 1.8%, respectively. The overall prediction accuracy was dramatically improved in this study compared to that of previous studies. Conclusions: The computer aided calculation method used in this study appeared to be more efficient.

      • 신경회로망을 이용한 ATM에서 실시간 호 제어에 관한 연구

        서동신,김희철,나상동 조선대학교 생산기술연구소 1996 生産技術硏究 Vol.18 No.2

        A traffic control using the neuaral network (NN) algorithm is proposed for the ATM communication networks. In this paper, neuaral network algorithm is trained to estimate call admission rate from traffic load and link capacity, and link capacity assignment is optimized by advanced NN algorithm method which used learning rate and moment term. In the real-time call control, link capacity assignment of NN methed is compared to equivalent bandwidth(EB) method. Therefore. simulation results yield efficient ATM traffic control which is used neural networks training between quality of service and traffic parameter in the number of traffic type 1, 2. We Show that call reject rate by neural network algorithm using the NN methed is presented better than EB method in the training pattern.

      • KCI등재후보

        학교구강보건실 운영 평가에 관한 연구

        민희홍,신승철,서현석,김은주,김호선 대한구강보건학회 2003 大韓口腔保健學會誌 Vol.27 No.2

        School dental clinic programs is the most active and effective programs to prevent the oral disease for school-children and it is one of the recommended programs by the advanced and welfare countries. In Korea, 15 primary schools have been established the school dental clinics in 1999 as one of the public oral health programs supported by the Ministry of Health and Welfares, and expanded more every year. 11 school dental clinics among 15 were participated for 2-years evaluation project. Such items as the structure, the process, the supply of dental services, the promotion of the health level and the community supports were evaluated through the standardization by governmental suggestions. Average score for 2-years evaluation was estimated as 81.35% as considerably good remark. In detail, score 4.74 for the structure, 22.10 for the process, 19.77 for supply of dental services, 26.22 for promotion of the oral health level and 8.53 for the community supports were calculated. In conclusion, school dental clinic programs in Korea were evaluated considerably good and they should be extended to all primary schools as possible.

      • Neuropeptide γ의 구조 및 생리활성

        구희정,서정길,김은희,허민도,정준기,박장수,강신원,박남규 부산대학교 유전공학연구소 1997 분자생물학 연구보 Vol.13 No.-

        생리활성을 지닌 신경펩타이드의 구조와 활성간의 관계를 규명하기 위하여 고상법으로 합성한 세종류의 neuropeptide γ(mammalian-,trout- 그리고 goldfish-neuropeptide γ)를 사용하여 연구하였다. Circular dichroism spectra에 의하면 mammalian-,trout- 와 goldfish-neuropeptide γ는 완충액 조건하에 모두 random한 구조를 나타내었다. 중성 및 산성 지질 존재 하에서, mammalian-과 trout- neuropeptide γ는 여전히 random한 구조를 취하였다. 그러나, goldfish-neuropeptide γ는 중성 및 산성지질하에서 부분적으로 α-helix구조를 나타내었다. 장관 수축활성에 있어서는 carp 장관, guinea-pig 회장 그리고 rat십이지장에 대하여 비교하였다. Carp에 대해서는 goldfish-neuropeptide γ= trout- neuropeptide γ>mammalian-neuropeptide γ순으로 활서이 나타났다. 그러나, guinea-pig 회장과 rat십이지장에 대해서 mammalian-neuropeptide γ는 어류 유래성 neuropeptide g들 보다 높은 수축활성을 나타내었다. 이러한 결과들은 neuropeptide γ들이 종-특이적인 활성을 나타낸다는 것을 제시한다. The relationship between structure and biological activity was studied on the three neuropeptides(mammalian-,trout- and goldfish-neuropeptide γ)that were syntheized by the solid-phase method. Circular dichroism spectra showed that mammalian-,trout- and goldfish-neuropeptide γadopted an undered structure in buffer solution. In the presence od neutral and acidic liposomes, mammalian-and trout- neuropeptide γ also took a random structure. However, goldfish-neuropeptide γ took an α-helical structure in acidic liposomes. The intestinal motility response was investigated with carp interstines, guinea-pig ileums and rat duodenums. In case of carp intestine, contractine activity was as follows:goldfish-neuropeptide γ= trout- neuropeptide γ> mammalian-neuropeptide γ. On the other hand, the contracile activity of mammalian-neuropeptide γ was more potent than trout- and goldfish-neuropeptide γ in the guinea-pig ileums and rat duodenums. these results suggest that neuropeptide γs showed the species-specific activity.

      • 개에서 피지선 과형성의 진단 및 치료 증례

        박희서,손화영,정성목,송근호,조종기,이영원,신상태,김명철,김덕환,박성준 충남대학교 수의과대학 동물의과학연구소 2004 動物醫科學硏究誌 Vol.12 No.-

        An eleven year old castrated male Maltese was presented to the Veterinary Medical Teaching Hospital of Chungnam National University. In physical examination, approximately 0.5 cm round mass was observed on tail base. This small elevated mass has also shown alopecic and firm configuration. It was differentially diagnosed as sebaceous adenoma and hyperplasia by fine needle aspiration. After surgical removal, the sample was diagnosed as sebaceous hyperplasia by histopathological examination. It has not yet shown any signs of recurrence and prognosis has teen good.

      • Ni-Zn 페라이트의 透磁率과 磁氣抵抗에 미치는 添加物의 影響

        강재덕,최희태,서강수,신용진 明知大學校 産業技術硏究所 1990 産業技術硏究所論文集 Vol.9 No.-

        This paper is studied on the effects of additive of permeability and magnetic reluctance of Ni-Zn ferrites. Ni-Zn ferrites was composed of 20mo1% NiO, 30mo1% ZnO, 50mo1% Fe₂O₃, and 0.0025n1o1%, 0.005mo1%, 0.01 mol% ??, Bi₂O₃, ?? were used as minor additive Sintering was carried oui at 1100℃. As results from the experiments, the initial permeability was proportional inversely to magnetic reluctance. It was observed that the better magnetic properties of initial permeability anti magnetic reluctance could be achieved by the additive ??.

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