교뇌출혈 환자의 생존에 영향을 미치는 인자에 관한 연구

황선철,김범태,임수빈,신원한 순천향대학교 의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.2

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순천향대학 천안병원에 내원한 알레르기환자의 특성

황규윤,남해선,,안현철,박준수 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.1

This study was designed to evaluate gencral features related to allergy of allergic patients living in northern and western Chungchungnamdo, visited to an allergic unit in Soonchunhyang University Chunan Hospital during August 1998 to July 2000. Three hundred allergic patients were enrolled. Among them, 87.7% were outpatients and were analysed for the study. Demographic variables as well as resident living conditions and immunologic results were assessed. Overall IgE, house dust, Dermatophagoides farinae (Df), and Dermatophagoides pteronyssinus (Dp) antibody were assessed using MAST-CLA in 263 outpatients. Relations between allergens and age, sex, and living conditions were evaluated by chi-square tests. Mean age was 21.0 ± 17.3 year-old and male accounted for 59.3% in total subjects. Among them, 52.0% lived in an apartment and 65.3% were from urban area near Chunan and Asan city. Admission rate of allergic patients was 12.3%. The positive rates of total IgE, house dust, Df, and Dp were in 55.1%. 19.0%, 30.0%, and 29.3% in outpatients, respectively. No significant relations between allergens and sex. living home, and region were observed (P>0.05). Adolescents showed significantly higher positive rate of total IgE (P=0.02). Our data suggested that residential environment may not be a significant factor of main causative allergens in northern and western Chungchungnamdo. However more controlled study should be required to elucidate the relations between living environments and major causative allergens in this area.

포괄수가지불제도 적용에 따른 산부인과 진료수입의 변화

황태연,유병철,정귀언,정수진,김성준,배기택,손혜숙,이종태,전진호,엄상화 인제대학교 2001 仁濟醫學 Vol.22 No.1

Objectives: Under the fee-for-service system, Korean hospitals have been suffering from the worsening profitability caused by law medical care fees. To overcome the difficulties, they have maximized the quantity of medical services and made relatively large investment in developing new medical services using high-priced medical equipment, medicines and medical supplies which were not covered by medical insurance system rather than reduced running costs. Materials and Methods: This study was made to analyze and forecast the revenue change of the department of Obstetrics and gynecology of an university hospital in Seoul, expecting the implementation of DRG system in 2000. Results: The results were as follows : 1.During the first two days of hospitalization. 41% of total medical service fee was occurred, which was thought that most of the check-ups and operations were made during this period. After two days of hospitalization, the new occurrence of medical service fee tended to reduce. 2.Out of total medical service fee, 67% of admission fee was occurred after 5 days of hospitalization. This was because medical service fees in obstetrics and gynecology department occurred during the first 5 days of hospitalization. 3.Out of fees for operation, treatment, medical supplies and blood transfusion. 71% was occurred during the first two days. 4. In case of fees for examination, 50% was occurred during the first two days. 5.A total of 53% of fees for medication and injection was occurred during the first 5 days. Conclusions: By the implementation of the DRG system, the income is forecast to increase by 800 won to 310,000 won by the disease group of obstetrics and gynecology department. To increase hospital income with the implementation of DRG system, the results of this study suggest that examinations should be done at out-patient departments before the hospitalization of patient, the discharge of patient should be noticed in advance to reduce the period of hospitalization, and admission appointment system should be implemented for the immediate operation and delivery.

한국어 음성의 통계적 특성 비교

黃英洙,裵澈秀,孫明哲 관동대학교 1990 關大論文集 Vol.18 No.1

In order to perform object measurements of telecommunication systems and devices, it is highly desirable to use the mathematically defined signal reproducing the characteristics of human speech. As the artificial voice must exhibit characteristics as close as possible to real speech, we obtain the statistical characteristics of speech. In this paper, the statistical characteristics are longterm average spectrum, instantaneous amplitude distribution, power envelope spectrum, fundamental frequency and time ratio of voice-unvoice. The statistical characteristics of Korean speech are compared with Japanese's and American English. Such results are useful in adapting speech signal processing technologies developed based on foreign languages.

고온에서 회전하는 터빈엔진 디스크의 응력해석

황수철,국정한,조재웅,하영민 한국공작기계학회 1995 한국생산제조학회지 Vol.4 No.4

This study includes thermal plasticity analyses for a turbine rotor with the simple geometry and the boundary conditions. When centrifugal or thermal stress are applied at the high temperarture material of engine blade, stress distributions in material σ_rr, σ_θθ, τ_rθ. Mises stress) are analyzed by computer simulation(ABAQUS) as followings; 1. The maximum stress at the radial direction (σ_rr) is applied at the upper middle part of spline hole. 2. The maximum stress at the tangential direction (σ_θθ) is applied at the upper right boundary of spline hole. 3. The maximum shear stress (τrθ) in (-) direction is applied at the upper middle part of spline hole. 4. The maximum Mises stress is applied at the upper right boundary of spline hole. This stress is due to the critical stress by which rotor can be fractured according to elapsed time.

치은연하 파절로 치조골 소실을 동반한 상악측절치에서 orthodontic extrusive remodeling후 임플란트 식립을 통한 심미수복 : 증례보고

황수연,손원준,한영철,배광식,백승호,이우철,금기연 大韓齒科保存學會 2008 Restorative Dentistry & Endodontics Vol.33 No.1

심미적으로 중요한 전치부에서 단일 치아 임플란트를 이용한 보철수복은 임상의에게 새로운 도전과제 중의 하나가 되었다. 그러나 전치부에서 single-unit implant는 식립할 부위의 치조골 상태가 양호해야 하는데 치은연하 파절로 인해 치아 주위에 골 손실이 있는 경우 immediate implant는 심미적으로 문제를 야기할 수 있다. 따라서 본 증례는 "orthodontic extrusive remodeling"을 통해 파절치와 주위 조직을 교정적으로 정출시켜 임플란트 식립을 위한 연조직과 경조직을 증대시킨 후 임플란트 식립을 통해 상악측절치에서 성공적인 심미수복을 이룬 증례에 관한 것이다. The treatment of esthetic areas with single-tooth implants represents a new challenge for the clinician. In 1993, a modification of the forced eruption technique, called "orthodontic extrusive remodelling" was proposed as a way to augment both soft- and hard-tissue profiles at potential implant sites. This case report describes augmentation of the coronal soft and hard tissues around a fractured maxillary lateral incisor associated with alveolar bone loss, which was achieved by forced orthodontic extrusion before implant placement. Through these procedures we could reconstruct esthetics and function in a hopeless tooth diagnosed with subgingival root fracture by trauma.

Microform Cleft Lip 환자의 분류에 따른 수술적 치료

박철수,엄기일,황세휘,안덕균,김잉곤 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.3

The microform cleft lip is the mildest expression of cleft lip and nose deformity, but it has no specific definition, classification, and few methods have been reported for its correction. It is characterized by deformity of the nostril, skin striae of the upper lip, notching of peaked Cupid's bow, deformity of the vermilion, and anomaly of the upper lateral incisior and alveolar ridge on the affected region. Sixty-three microform cleft lip patients were operated on between Dec. 1993 and Sep. 1998 in our department(29 males and 34 females). The age of the patients ranged from 5 months to 30 years(Mean 9 years). We classified and treated the microform cleft lip as follows: Class Ⅰ: Cleft lip nose with very slight lip deformity Class Ⅱ: Minimal lip deformity without vermilion notching ClassⅢ: Mild lip deformity with slight vermilion notching. The goals in the correction of a microform cleft lip are to obtain an esthetically pleasing upper lip and nose, and to reestablish muscle continuity for improved function. To attain these goals, we used the above classification and satisfactory results were obtained by treating the microform cleft according to the classification.

크랙幅이 壓縮破壞强度에 미치는 影響

文秉秀,黃秀喆,吳範錫,趙鎭境 충북대학교 산업과학기술연구소 2002 산업과학기술연구 논문집 Vol.16 No.1

Under the compressive loads, tensile stress fields are possibly induced according to the boundary condition of compressed body. At the crack tip, the possibility of occurance of tensile stress fields are strong even under the compressive loads. In this paper, the fracturing behavior of brittle materials containing crack are investigated and the compressive strength affected by crack clearance are inspected theoretically and experimentally. Upon the theoretical and experimental results, it is found that compressive strength is decreased as the crack clearance is increased.

PEIS의 단계를 활용한 초등체육 전담교사의 교수행동에 관한 사례 연구

이상철,황영성,이수판,안성준 釜山大學校 附設 體育科學硏究所 2007 體育科學硏究所 論文集 Vol.23 No.2

본 연구는 PEIS의 단계를 활용한 초등체육 전담교사의 교수행동을 분석함으로써 초등체육 수업을 개선하는 데 목적이 있다. 연구의 목적을 달성하기 위해 문화기술적 사례연구를 수행하였다. 참여관찰과 심층 면담을 통해서 자료를 수집하였고 Spradley의 영역분석과 귀납적 범주분석을 이용하여 자료를 분석하였다. 연구결과 다음과 같은 결론을 얻었다. 첫째, 수업장학이 초등체육 전담교사의 비교육적 경향성을 감소시켰다. 둘째, 교재의 재구성과 교수행동의 관찰경험이 가르침의 딜레마를 극복시켰다. 셋째, 과제행동의 명확한 제시로 수업력을 향상시켰다. 넷째, 체육수업에 미칠 영향 요소의 제거로 수업 실행율을 높였다.

韓.日 하이테크産業의 硏究開發과 마아케팅 統合에 관한 實證的 硏究

朴仁守,朴徹敏,黃華鐵,金容萬 慶南大學校 産業經營硏究所 1994 産業經營 Vol.17 No.-