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過蓋咬合, 開咬合 및 正常咬合의 咬筋沈默期에 關한 硏究
문철현,정현수 대한치과교정학회 1987 대한치과교정학회지 Vol.17 No.1
The present study was carried out to investigate the relationships between the depth of overbite and the masseteric silent period. Normal subjects of 44 were selected, which consisted of 9 open bites, 24 normal overbites and 11 deep bites, all were 19-29 years of age. EMG activity was recorded on the bilateral masseteric muscles and craniofacial radiography was done. The following results were obtained. 1. The mean duration of masseteric silent period was 18.58±4.50 msec in open bite, 17.37±7.05 msec in normal overbite and 19.30±7.62 msec in deep bite groups. 2. There were no significant differences on masseteric silent period among open bite, normal overbite and deep bite groups. 3. There were no significant correlations between masseteric silent period and craniofacial variables.
카아네이션 잎마름병 (Alternaria dianthi Stevens & Hall)의 발생에 관하여
文炳周,孫賢秀,金正基 東亞大學校 大學院 1984 大學院論文集 Vol.8 No.2
The study has been carried to examine a new disease of carnation caused by Alternaria isolate, which was found in Gim Hae, Gyoungnam province and the suburbs of Busan City, recently. 1. The pathogen was identified as Alternaria dianthi Stevens & Hall which has not been described in Korea. The common name of the disease was given as IB Ma Reum Byung(carnation blight). 2. Morphological studies of the fungus have shown a wide variation in shape, size and septation of conidia. The size of conidia formed on carnation leaf lesions in field is 22.8-101.2μ(av. 60.4μ)×10.1-27.8μ(av. 18.6μ), which was larger than those on potato dextrose agar in vitro. 3. Of 13 carnation varieties tested, Boston, Linda and Red Alaska were highly susceptible, and Angel, Flamingo Sim, William Sim and Yo Soo were moderately susceptible whereas Brauns Yollw Sim, Colquate, Imp Sisney Little Field, Cardinal Sim, La Reve Salmon Sim and Safari were slightly susceptible to the fungus under the condition of artificial infection.
프롤린 함량 증가 및 내건성 강화 관련 새로운 RING-Type E3 유비퀴틴 리가아제 애기장대 atrzf1 돌연변이체의 생리적 기능 연구
주현우,민지희,정문수,김철수 전남대학교 농업과학기술연구소 2021 농업생명과학연구동향 Vol.59 No.-
The covalent attachment of ubiquitin to proteins plays a fundamental role in the regulation of cellular function through biological events involving abiotic of biotic stress responses, immune responses, and apoptosis, Here, we characterize the biological function of the Arabidopsis thaliana RING Zinc Finger 1 (AtRZF1) in dehydration response. AtRZF1 was significantly reduced by drought stress. The atrzf1 mutant was less sensitive to osmotic stress than the wild-type during early seedling development, wheareas transgenic pants overexpressing AtRZF1 were hypersensitive, indicating that AtRZF1 megatively regulates drought-mediated control of early seedling developmeng. Moreover, the ectopic expression of the AtRZF1 gene was very significantly influential in drought sensitiv parameters including proline content, water loss, membrance ion leakage and the expression of dehy-dration stress-relat genes. ARZF1 is a functional E3 ubiquitin ligase, and its conserved C3H2C3-type RING domain is likely important for the biological function of AtRZF1 in drought response. Together, these results suggest that the E3 ligase AtRZF1 is an important regulator of water deficit stress during early seedling development.
문현수,황환규,최황규,염상민,김상욱 강원대학교 정보통신연구소 1998 정보통신논문지 Vol.2 No.-
A partitioned signature file is an enhancement of the signature file that divides all the signatures into blocks in such a way that each block contains the signatures with the same key. Its directory stores all the keys as meta information for avoiding unnecessary block accesses by examining them first before the actual searching of the blocks. Efficient directory management is very important in large database environments since its size gets larger proportionally to that of the database. In this paper, we first point out the problems in the directory management methods of the previous partitioned signature files, and then pressent a new one solving them. Our method offers good features in the following three aspects: (1) suitability for large database environments, (2)adaptability to dynamic situations, and (3) storage overhead for the directory.
문현택,이병수 순천향대학교 부설 산업기술연구소 1997 순천향 산업기술연구소논문집 Vol.3 No.2
In this thesis, problems connected with present speech recognition systems are pointed out and methods for performance improvement are proposed. Especially, a recognition system for use in a car noise environment is proposed and estimated. A speech recognition system comprises feature extraction, distance measure and pattern classification methods. Recently, weighted cepstral distance measures using LPC-cepstral coefficients as feature vectors have given high recognition rates, with HMM and DTW are widely used for pattern classification. But speech recognition rates drop rapidly in a noisy environment. To improve recognition accuracy in noise, an endpoint detection method which takes noise into account, a modified DTW, an autocorrelation subtraction method and a distance measure robust to noise are used to give improved speaker dependent isolated word recognition performance.
문현욱,최희태,서강수,신용진 明知大學校 産業技術硏究所 1995 産業技術硏究所論文集 Vol.14 No.-
In this paper, we mention he fabrication of Sr ferrite plastic magnet. In order to compose Sr ferrite, first, a little CaO, SiO₂, Na₂SiO₃, and Al₂O₃ are added to SrO5.9Fe₂O₃. Then, the composition is calcinated at 1225℃ under N₂ enviroment for 1 hourwith addition of PVA 5wt% solution. The carbon coating method increase grinding effect on powder fabrication. To fabricate anisotropic Sr ferrite plastic magnet, 80-89wt% of Sr ferrite and polyamide6 are kneaded and then 0-12kOe of magnetic field is applied. On magnet fabrication, an optimal condition of injection mold is obtained under the injection temperature 270℃, the injection pressure 120㎏/㎠, the magnetic field 8kOe and magnetic field applied time 8sec. As the result of experiments, we obtain (BH)max = 2.09MGOe property on anisotropic plastic magnet which is fabricated by using injection mold method in magnetic field.
오익수,변문현 忠南大學校 産業技術硏究所 1996 산업기술연구논문집 Vol.11 No.1
Features are generic shapes with which engineers associate certain attributes and knowledge useful in reasoning about the product. Feature-based modeling systems support additional levels of information beyond those available in geometric modelers. The objective of this study is to develop a PC level feature-based modeling system which explicitly represents dimensions of the part. The feature-based modeler retains all the benefits of traditional B-rep. solid models, and represents the dimensions at a high level of an abstraction so that dimension driven geometry can be achieved.
제1요수 불완전 하반신 마비 환자에서의 기능적 전기자극에 의한 훈련 증례보고
최현주,이수영,김종문,강선화,정순열,강곤,정진상 건국대학교 의과학연구소 1996 건국의과학학술지 Vol.5 No.-
Functional electrical stimulation(FES) is known to increase muscle bulk and strength and prevent muscle atrophy in complete paraplegic patients. And other benefits include peripheral adaptations which improve muscle endurance, girth, and appearance, as well as central circulatory adaptation which enhances aerobic(cardiopulmonary) capacity. Good candidates for FES include spinal cord injured patients who have clinically complete upper motor neuron lesion between T4-T12. But we experienced incomplete L1 paraplegic patient who has improved maximal knee extension power, endurance, circumference and cross-sectional area of the thigh and the shank after FES-induced exercise for 44 weeks. So we recommend more trial of the FES-induced exercise to not only complete but also incomplete lumbar paraplegic patients.
송현주,김도영,정혜경,남승현,문일환,구혜수 梨花女子大學校 醫科大學 醫科學硏究所 2002 EMJ (Ewha medical journal) Vol.25 No.2
Nowadays increasing use of abdominal ultrasound in routine check-up may increase the detection rate asymtomatic cystic lesions of pancreas. Even through the majority of the cystic lesions of pancreas is pseudocyst, about 10-15% of those lesions are caused by pancreatic cystic tumor. In the pancreatic cystic tumor, especially, mucinous cystic tumor should be exicised due to its malignant potential, while the pancreatic pseudocyst or serous cystic tumon can be observed for a period or treated medically. Several clinical, radiological, biochemical and pathologic guidelines have been developed in order to distinguish among them. Among pancreatic cystic tumors, mucinous cystic adenocarcinoma is very rare and accounts for only 1% of all pancreatic neoplasms. Unlike extremely poor prognosis of pancreatic adenocarcinoma, mucinous cystic adenocarcinoma has an indolent course and shows a good prognosis after its curative resection. Recently we experienced a 69-year-old woman who had a mucinous cystic adenocarcinoma of the pancreas. We report this case with a review of literature.
金顯昌,權秀逸,鄭汶奎,張浚成 成均館大學校 1981 論文集 Vol.29 No.-
This paper describes the merit of the HgI_2 single crystals obtained by solution growth, 2-& 3-region temperature growth, and temperature oscillation growth for soft γ-ray detectors which can be operated at room temperature. Special efforts are put on the design, construction, and operation of the TOM single crystal growing furnace. Experimental results show that HgI_2 detectors fabricated by vapour phase growth method usually exibit sufficient enough detector characteristics for soft γ-ray spectrometry. However further investigation should be carried out to eliminate detector deterioration due to polarization effect.