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      • SCOPUSSCIEKCI등재

        Does Age Influence the Poor Prognosis after Aneurysmal SAH Surgery in Elderly Patients?

        Sim, Jong-Eun,Kim, Hyung-Dong,Song, Young-Jin,Noh, Seung-Jin The Korean Neurosurgical Society 2006 Journal of Korean neurosurgical society Vol.40 No.5

        Objective : The incidence of aneurysmal subarachnoid hemorrhage has been increasing. At the same time, surgical results for elderly patients are unsatisfactory and no guidelines of treatment are available. We carried out a study comparing variable factors and surgical results between young and old age groups to find ways to improve prognosis. Methods : A retrospective study was carried out on 754 patients who were operated on between 1990 and 2004 by the same surgeon in our hospital. The patients were divided into seven groups according to age : 93 patients below 40 years of age [Group I], 419 patients aged $40{\sim}59$ [Group II], 115 patients aged $60{\sim}64$ [Group III], 82 patients aged $65{\sim}69$ [Group IV], 28 patients aged $70{\sim}74$ [Group V], 12 patients aged $75{\sim}79$ [Group VI] and 5 patients over the age of 80 [Group VII]. We then checked their medical history, Fisher's grade, Hunt-Hess grade, postoperative complications, and Glasgow Outcome Scale. Results : Age was not a statistically significant factor among patients below 70 years of age [P $value{\ge}0.05$]. But for those aged 70 and older, the age factor had a statistical value [P $value{\le}0.001$]. In addition, there was a close correlation between Hunt-Hess grade IV and V patients, and those with vasospasm, and hydrocephalus after surgery, with poor prognosis in elderly patients as well as young patients [P $value{\le}0.001$]. Conclusion : Advanced age [under the age of 70] dose not precluded adequate surgical treatment in patient with AN SAH, and we should be also alert to preventable causes of delayed neurological deterioration for improving the outcome in all elderly groups.

      • 책 표지 이미지에서의 책 정보 추출 및 인식

        심락기,원도연,차인덕,하진영 강원대학교 정보통신연구소 2009 정보통신논문지 Vol.13 No.-

        Information systems are used to manage book information for the libraries and book stores. It is very difficult, however, to extract book information from the bookshelf images automatically without using bar codes or something else. There may be discrepancy between the information system and the real bookshelves if there is no proper management. In this paper, we proposed an effective method to extract book information from book cover images. After segmenting individual book cover image, title and authors information can be recognized using OCR (Optical Character Recognition) technology. Those informations are matched to book database to verify the recognition results. In our system, title, authors and publisher information are effectively extracted using OCR and database search.

      • KCI등재

        안면골 골절에 관한 임상적 연구

        심지영,오수진,장창덕,김영수 大韓顎顔面成形再建外科學會 1994 Maxillofacial Plastic Reconstructive Surgery Vol.16 No.1

        This study was based on a series of 213 patients with facial bone fractures treated at college of Medicine, Dong-A university from Mar. 1990 to Jun. 1993. The results obtained were as follows : 1. The ratio of male to female was 8.3 : 1 and 3rd decade(34.3%) was the highest age group in incidence. 2. Monthly incidence was the highest in Jan. & Jun.(10.3%) 3. Onset time and daily incidence was the highest in pm. 9:00-12:00(21.4%), Sunday(18.8%). 4. Traffic acidents(38.5%) were the most frequent etiologic factor. 5. The most common site of fracture was zygoma & zygomatic arch(42.3%) and mandible (37.8%), maxilla (10.9%) and nasal bone(9.0%) were next in order of frequency. 6. In mandible fractures, the most frequent site was symphyseal area(43.0%) and IMF & open redction was major method of treatment. 7. In zygoma & zygomatic arch fractures, zygoma(62.0%) was the most common fracture site and open reduction was the most frequent treatment method. 8. In maxilla fractures, the major fracture type was Le Fort I type (72.4%) and treatment was done by IMF & open reduction primarily. 9. postoperative complications were mal-union, fibrous-union, infection, osteomyelitis etc.

      • 홀과 노치를 지닌 2차원 평판에서의 응력집중감소에 관한 연구

        심우진,최영필 金烏工科大學校 1996 論文集 Vol.17 No.-

        Stress concentrations under uniaxial tension in 2-dimensional elastic plates due to geometric discontinuities such as holes and notches and their reductions by placing subsidiary holes and notches near stress raisers are studied by the method of photoelasticity. In general, photoelastic plates are very sensitive to heat so that test specimens should be carefully machined to prevent residual stresses Experimental details are given to reduce errors in measuring data by the reflection polariscope. Stress concentration factors of 12 useful specimen models are presented for the purpose of later comparative study with numerical results.

      • KCI등재
      • KCI등재

        교정용 미니 임플랜트 고정원과 SWA en masse sliding retraction 시 전치부 치축 조절 요인에 관한 유한요소해석

        정혜심,성상진,문윤식,조영수,임승민 대한치과교정학회 2006 대한치과교정학회지 Vol.36 No.5

        교정용 미니 임플랜트 고정원을 이용한 교정 치료가 보편화되며, SWA와 이를 이용한 en masse sliding retraction은 임상에서 흔히 사용하는 치료법이 되었다. 그러나 고정원을 성공적으로 보존하려는 노력에 비해, 발치 공간 폐쇄 시 전치부 치축 조절에 관여하는 요인에 대한 보고는 아직까지 부족한 실정이다. 본 연구에서는 제1소구치를 제거한 상악 치아와 치주 인대 그리고 치조골에 대한 3차원 유한요소 기준모델을 제작하였고, 제1대구치와 제2소구치 사이 주호선 10 mm 상방에 식립된 교정용 미니 임플랜트를 고정원으로 사용할 경우, 측절치-견치 사이의 견인 훅의 높이를 변화시키며 후상방 견인력을 가하거나, 주호선에 보상 만곡을 부여하는 것이 전치부 치축 조절에 어떤 영향을 미치는지 시뮬레이션 하였다. 또한 전치부 치축이 설측 경사된 모델을 같은 실험 조건으로 시뮬레이션 하여 발치 공간 폐쇄 시 설측 경사된 전치부 치축을 유지하거나 개선할 수 있는 요인을 검토하였고, 다음과 같은 연구 결과를 얻었다. 2 mm 높이의 견인 훅에 대하여 후상방으로 견인력을 가할 경우 발생하는 함입력으로 인하여 전치부 설측 경사가 더 감소되지는 않았다. 견인 훅의 높이가 5 mm인 경우 후상방 견인력을 가하면, 측절치의 치관 순측 및 치근 설측 이동이 일어나고, 견치의 비조절성 후방 경사 이동이 심화되었다. 4 mm의 보상 만곡은 측절치의 치관 순측 및 치근 설측 이동을 일으키고, 견치의 비조절성 후방 경사 이동을 감소시켰다. 또한 전치부가 설측 경사된 모델을 기준모델과 같은 실험 조건으로 시뮬레이션 한 경우 치근면의 응력 분포와 25000배 확대된 그래프 상에서의 치아 이동 양상은 매우 유사하였다. 이상의 결과는 미니 임플랜트-SWA sliding 생역학을 구사 시 견인 훅의 위치와 와이어 상의 보상 만곡의 유무에 의해 전치부의 치축 조절이 달라지며 실제 임상에서 가이드라인으로 활용될 수 있을 것이다. Objective: With development of the skeletal anchorage system, orthodontic mini-implant (OMI) assisted en masse sliding retraction has become part of general orthodontic treatment. But compared to the emphasis on successful anchorage preparation, the control of anterior teeth axis has not been emphasized enough. Methods: A 3-D finite element Base model of maxillary dental arch and a Lingual tipping model with lingually inclined anterior teeth were constructed. To evaluate factors influencing the axis of anterior teeth when OMI was used as anchorage, models were simulated with 2 mm or 5 mm retraction hooks and/or by the addition of 4 mm of compensating curve (CC) on the main archwire. The stress distribution on the roots and a 25000 times enlarged axis graph were evaluated. Results: Intrusive component of retraction force directed postero-superiorly from the 2 mm height hook did not reduce the lingual tipping of anterior teeth. When hook height was increased to 5 mm, lateral incisor showed crown-labial and root-lingual torque and uncontrolled tipping of the canine was increased. 4 mm of CC added to the main archwire also induced crown-labial and root-lingual torque of the lateral incisor but uncontrolled tipping of the canine was decreased. Lingual tipping model showed very similar results compared with the Base model. Conclusion: The results of this study showed that height of the hook and compensating curve on the main archwire can influence the axis of anterior teeth. These data can be used as guidelines for clinical application.

      • 토착형 말라리아 (Plasmodium vivax) 2례

        이영진,박도심,정병학 圓光大學校 醫科學硏究所 1997 圓光醫科學 Vol.13 No.1-2

        In korea indigenous malaria was known as "Hak-chil" in many centuries and they were disappeared from 1984 to 1992. But indegenous malaria (Plasmodium vivax) was detected in 1993 among soldiers and residents in western parts of the demilitarized zone (DMZ). Nowadays infected cases of indeginous malaria are progressively increased and social problem because infected mosquitos and bloods can transmit to other people. We detected 2 cases of indigenous malaria (P.vivax) that they were worked in western parts of the demilitarized zone (DMZ) during army period few months ago but never went out of korea, received blood products and intravenous drugs. We considered that they were were infected malaria at DMZ.

      • 소각잔사 중의 클로로벤젠과 클로로페놀의 함량 및 이성체 분포특성

        이우근,심영숙,김진범 江原大學校 附設 環境硏究所 1998 環境硏究 Vol.15 No.-

        Chlorobenzens(CBs) and chlorophenols(CPs) in fly asha discharged from several municipal soild waste incinerators (MSWI) were investigated in terms of total content and isomer distribution. The content of CBs and CPs was highest in the fly ash from S incinerator, which were 1040.7ngCB/g-fly ash and 1156.4ngCP/g-fly ash. According to the experimental results, while all samples contained a large amount of the higher chlorinated CBs the amount of lower chlorinated CPs varied with season It was found that the isomer distribution of CBs and CPs was almost constant regardless of season. The quantities of CBs and CPs depended closely on the chemical composition of MSW, while the isomer distribution of CBs and CPs was contant throughout all the year round.

      • KCI등재

        CRRT(Continuous Renal Replacement Therapy: 지속적 신대체 요법)적용 환자의 저체온증 예방을 위한 가온요법에 관한 연구

        이수진,박향숙,임은영,심유미 병원간호사회 2007 임상간호연구 Vol.13 No.3

        Purpose: The purpose of this study was to investigate the effect of heated dialysate sloution(HDS) and heated replacement solution(HRS) on maintenance of the body temperature for ICU patients taking CRRT. Method: To maintain body temperature, we made the HDS and HRS using it in the peritoneal dialysis solution warmer. We measured body temperature every hour for initial 5hours after applying HDS and HRS by tympanic membrane thermometer. One hundred twenty nine of ICU patients taking CRRT were non-randomly assigned into four groups : only dialysate warmer; DW(n=33), only blood warmer; BW(n=32), DW+HDS+HRS(n=32), BW+HDS+HRS(n=32). Results: The patients' core temperature in the DW+HDS+HRS and BW+HDS+HRS groups were maintained within isothermic range. Those in the DW and BW groups significantly decreased during initial 5hours after applying CRRT<respectively, time(p=.000, p=.000)>. There was significant difference in the patients' core temperature between the DW and DW+HDS+HRS groups<group(p=.001)>. No significant difference was showed between the BW and BW+HDS+HRS groups<group (p=.093)>. Conclusion: The additional application of HDS and HRS to DW or BW may be an easy to use, and effective for maintenance of body temperature for patients on CRRT.

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