하악골 골수염이 동반된 전신적 골화석증

이종호,정중재,정종철,서구종 大韓顎顔面成形再建外科學會 1992 Maxillofacial Plastic Reconstructive Surgery Vol.14 No.4

Osteopetrosis is a rare skeletal disease of unknown etiology. Osteomyelitic changes in the jaw bones are frequently seen in this disease, especially in the mandible and may follow upon tooth extractioin. A case is reported of a 31-year-old male who was seen because of intraorally exposed bony spicule and chronic dull pain. Radiographic and haematological investigations led to the diagnosis of osteopertrosis with osteomyelitis. The striking radiologic findings were pathologic mandibular fracture and generalized skeletal thickening. The present case could be grouped under the benign form, type II osteopetrosis. With the conservative and minimally invasive modes of treatment including administration of penicillin G sodium, curettage and closed reduction, we could successfully manage the osteomyelitis and pathologic fracture associated osteopetrosis.

시상출혈에서 발생한 대측성 안구의 급성 내사위 2예

이종호,구본대,이계훈,허경 대한신경과학회 1999 대한신경과학회지 Vol.17 No.5

烏貝散이 HCI-aspirin 으로 유발된 십이지장궤양에 미치는 조직학적 영향

구세광,이형식,김종대,한상원,김상찬,이재현 慶山大學校 基礎科學硏究所 1999 基礎科學 Vol.3 No.-

오패산이 HCI-aspirin tm으로 유발된 rat 십이지장궤양에 미치는 조직학적 영향을 관찰하기 위하여, 오패산을 1,3 및 5일 동안 경구투여하고 십이지장의 조직학적 변화를 관찰하였던 바 다음과 같은 결과를 얻었다. 실험 전 기간동안 대조군에서는 십이지장 융모의 위축과 붕괴가 관찰되었으며, 조직학적으로는 점막상피의 변성 및 탈락이 관찰되었고 점막고유층에서는 염증세포의 침윤(infilteration)의 소견이 관찰된 반면 오패산 투여군의 투여 1일에서는 대조군과 유사하게 관찰되었으나, 투여 3일후부터 점막상피의 첨부에서 경미한 카타르성 물질이 관찰된 이외에 정상군과 유사한 소견을 나타내었다. 이상에서 오패산이 십이지장궤양의 치유를 촉진시키는 것으로 관찰되었다. In order to study, the histological effects of Opeaesan on the duodenal ulcer induced by HCI-aspirin tm in rate, experiments were done by oral administration and observed histological profiles of the ulcerative lesions. Ulcerative lesions were unmerously detected in control groups especially in pylorus-duodenal junctions. Histologically, very severe injury to duodenal epithelium wer observed in control groups and these injuries were increased with time intervals. But in the Opaesan-administration groups, no gross lesion of ulcer were demonstrated and histologically minor injury to the mucosal epithelium were observed. Among the Opaesan treatment groups, most slight injuries to duodenal mucosa were detected in 5 days after administration when the histological profiles were similar to that of normal groups. According to these result, it is suggested that Opaesan should be used in treatment of the duodenal ulcer but the funcitonal mechanisms were unknown.

은행의 금융중개기능 약화 원인과 정책과제

강종구 한국은행 2005 經濟分析 Vol.11 No.3

During the recent period of recession, Korean banks' loans to SMEs have decreased greatly. Banks' weakened financial intermediation role could impair the effectiveness of monetary policy as well as that of resource allocation. This paper identifies factors affecting Korean banks' recent weak financial intermediation role, through theoretical and empirical analyses. From these analyses, it derives policy measures for strengthening Korean banks' financial intermediation role. The results of the empirical analysis show that the weakening of Korean banks' financial intermediation role has been mainly caused by structural changes in the banking industry. Firstly, in the course of financial consolidation among banks in Korea, the cost to banks of lending to SMEs has increased. As banks have attached more importance to short-term profits, they have reduced their long-term credits. Loans to firms have declined as foreign and domestic banks prefer to lend to households. On top of this, Korean commercial banks have reduced their riskier assets such as SME loans and long-term loans, out of a preference for safer asset holdings. In order to improve banks' financial intermediation role, the Korean financial authorities need to take the following policy measures: strengthening local banks' business capabilities, heightening corporate governance structures and accounting systems, increasing the allocation to internal reserves of banks' profits, and enlarging the number of instruments available for sharing the risks of bank lending. 최근 경기침체가 지속되고 있는 가운데 은행의 경우 중소기업을 중심으로 기업대출이 위축되고 있어 금융중개기능이 약화되고 있다는 우려가 대두되고 있다. 은행의 금융중개기능이 약화되면 자금배분의 효율성뿐만 아니라 신용경로 등을 통한 통화정책의 효과가 저하될 수 있다는 점에서본 연구에서는 최근 은행의 금융중개기능이 약화된 원인을 이론적실증적으로 분석하고 이를 바탕으로 금융중개기능을 강화하기 위한 정책과제를 모색하였다. 우리나라 은행의 금융중개 현황을 은행의 자산구성 변동 추이를 통해 보면 최근 은행의 기업대출 및 신용대출 비중이 하락한 반면 가계대출, 담보대출, 국공채 등 안전자산에 대한 투자비중과 단기 대출 및 단기 유가증권 보유 비중은 상승한 것으로 나타남에 따라 은행의 금융중개기능은 전반적으로 약화된 것으로 보인다. 최근 들어 은행의 금융중개기능이 약화된 원인을 실증적으로 분석한 결과 경기순환적 요인보다 주로 은행산업의 구조적 요인에 의해 은행의 금융중개기능이 약화된 것으로 나타났다. 먼저 은행의 대형화와 겸업화가 진행되는 과정에서 은행의 중소기업대출 관련 비용이 상승하였다. 또한 은행들이 단기 수익성에 치중하는 경영 행태를 보임에 따라 장기대출 등이 축소되었다. 아울러 국내에 진입한 외국계 은행의 경우 기업대출보다 가계대출면에서 비교우위에 있는 점도 기업대출이 축소된 원인으로 작용하였다. 이밖에도 은행이 안전자산을 선호하는 경향이 심화됨에 따라 상대적으로 위험도가 높은 중소기업대출 및 장기대출 등을 기피하게 되었다. 이러한 분석을 바탕으로 은행의 금융중개기능을 강화하기 위한 방안으로 지방은행의 영업기반 확충, 국내기업의 지배구조와 회계의 투명성 제고, 은행 이익금의 내부유보 확대, 은행대출의 위험분담(risk sharing) 수단 확충 등을 제시하였다.

음향방출 신호에 의한 엔드밀의 마멸검출에 관한 연구

여만구,윤종학 서울산업대학교 산업대학원 1996 大學院論文集 Vol.4 No.-

This study is focused on the prediction of appropriate tool life by clarifying the correlation between progressive tool wear and AE(Acoustic Emission) signals, while cutting stainless steel by end mill on the machining center. The results of this study were that RMSAE tends to increase linearly along with the increase of the cutting speed, and it was more sensitive to depth of cut than to the variation of feed rate at the same cutting conditions, and RMSAE increases around 0.21㎜ flank wear hereby AE-HIT also increases. AE signals depend upon tool wear and fracture from the above results. Therefore, the AE signals can be utilized in order to monitor the tool condition.

유한요소법을 이용한 정밀전단 변형부의 응력해석

이종구,오환섭 한국공작기계학회 1999 한국생산제조학회지 Vol.8 No.6

The goal of this study is to analyse the stress and the strain occurring within the work piece at the fine-blanking process and hence to assume the size, direction and a distribution chart of the shearing stress as the penetration of the punch is being increased trough the application of the FEM. For this analysis we introduced the piece-wise linear method in the non linear structural analysis program for large deformation sheet metal forming and we defined it as the problem of the non linear contact. Therefore, we modeled the above problems as quadratic-nodded axi-symmetrical elements for the characteristics of the work piece. From the result of this analysis, it was found that the shearing stress is a great deal occurred on the surface of the work piece during the beginning process of the punch penetration and it's effect is expected to influence importantly for th formation of burnish because the deeper is the penetration of the punch in the narrow clearance zone, the greater is the degree of the strain stress.

줄넘기 운동이 건강에 미치는 영향

유종만,손형구 한국체육대학교 1997 敎養敎育硏究所 論文集 Vol.- No.2

Rope skipping is an exercise that can be done with little cost, space and time. Despite its minimal requirements, however, the exercise provides great effect in disciplining the participants' mind and body which in turn helps them to become wholesome members of society. Anyone regardless of age, sex, or strength can do rope skipping. The exercise is not harmful to the body because one performs it alone at one's own pace at a place that is safe and peaceful. Since it requires the movement of the whole body, rope skipping can help to develop a balanced figure. In addition, it can improve circulation and the respiratory function, as well as prevent lack of appetite, gastroenteric disorder, cardiac disease, and so, on. Moreover, rope skipping can help people with obesity to burn fat.

웹기반 학급경영시스템의 설계

김종우,강인구 제주교육대학교 초등교육연구소 2004 초등교육연구 Vol.8 No.-

造景樹木의 VA內生菌根에 관한 硏究

沈慶久,李景俊,安永熙,劉鍾勳 成均館大學校 科學技術硏究所 1985 論文集 Vol.36 No.2

The beneficial role of Vesicular-Arbuscular Mycorrhizae (VAM) for growth of woody landscape plants has already been well demonstrated in many countries, but little has been studied about VAM in Korea. So far, researches concerning physiological aspects of VAM have been abundant compared to researches on the ecological sides in woody landscape plants. Especially, the study about VA mycorrhizal fungi indigenous to threeflower maple (Acer triflorum), Korean mountain-ash. (Sorbus alnifolia), and European bird cherry (Prunus padus) have been less studied. The studies described here were undertaken to identify the genera of VAM fungi living in the soil wherein threeflower maple, Korean mountain-ash, and European bird cherry rooted, to observe infected root of host plants, and to compare mycorrhizal colonization related to soil factors. The results obtained were as follows. Ornamental trees roots infected by VAM fungi were observed and identified genera of the fungi investigated in the rhizosphere soil were Glomus sp. The VAM fungi of threeflower maple and Korean mountain-ash showed a circular form, but spore of European bird cherry showed a ellipsoidal form. Vesicle diameter of landscape plants were found from 25.21㎛ to 50.43㎛. Mycorrhizal colonization of threeflower maple, Korean mountain-ash, and European bird cherry were respectively 46.7, 33.3, and 20.0%. Soil pH of landscape trees were slightly acid, and available soil phosphate in the rhizosphere soil showed lower than normal soils. Rhizosphere soil moisture content were 22.90-29.38%.

청각장애아동의 조음특성에 관한 연구

이종구 龍仁大學校 1991 용인대학교 논문집 Vol.7 No.-

This study is about the articulation of the hearing loss and deaf children. Especially, it is related to the several hearing types in audiogram and articulation. 1.Summary A.Subject o S special primary school 170 students B.Periods o 1990, July, 1 ~ July, 20 C.Instruments 1) Articulation test Cards ; 68 2) Individual audiogram 3) Cassette recorder 4) The list of individual's articulation D.Procedure The surveyer showed clients the articulation cards including Korean phoneme. The surveyer recorded the articulation conditions of hearing loss and deaf children by recorder. According to results, the surveyer decided the scores. ; Two points (excellent level), One point (moderate, similar level), Zero point (never pronounced) E.Results 1) Single vowels easily can pronounced than dipthongs 2) The peongem([g], [d], [b], [s], [z]) can more good pronounced than kyongem(['g], ['d], ['b], ['s], ['z]) and keokem([gh], [dh], [bh], [zh], [hh]) 2.Proposal A.Speech therapy prospects 1) It is more effect that the speech Therapist to teach the dipthongs after single vowels. 2) It is necessary that the speech Therapist must to teach not only hearing loss but also hearing type in audiogram. 3) It is more effect that ther are used cued speech and etc, in difficulty phonems. B.Special education prospects 1) The speech therapist are to be placed in special schools 2) Separation of primary schools from secondary schools is necessary. 3) Specialists' committee is necessary for the placement of proper class.