좌측 광범위 경부 림프절 청소술 후 발생한 양측 유미흉 2예

신종현(Jong-Hyun Shin),이잔디(Jandee Lee),윤지섭(Ji-Sup Yun),임치영(Chi-Young Lim),남기현(Kee-Hyun Nam),정웅윤(Woong Youn Chung),박정수(Cheong Soo Park) 대한두경부종양학회 2006 대한두경부 종양학회지 Vol.22 No.2

Bilateral chylothorax as a complication of radical neck dissection is extremely rare. Early diagnosis of chy-lothorax is important due to the consequences on metabolic & cardiopulmonary conditions. This present report describes our recent experiences with two cases of bilateral chylothorax following left modified radical neck dissection that was treated successfully by conservative management.

벌 자상에 의해 발생한 횡문근융해증과 급성신부전

박상곤,김영대,강지은,신정현,신병철,박차영,정춘해 朝鮮大學校 附設 醫學硏究所 2003 The Medical Journal of Chosun University Vol.28 No.2

Rhabdomyolysis is a syndrome characterized by muscle necrosis and release of intracellular muscle constituents into the circulation. The spectrum of causes is quite broad and included disorders of traumatic, metabolic, infectious and toxic origin. However, rhabdomvolvsis and acute renal failure following bee sting is rare and its pathogenesis is not well known. We experienced a case of 63-year-old man with acute renal failure and rhabdomyolysis caused by bee sting. He was stung by bee on scalp and neck. Oliguria was developed within several hours. He has fully recovered after general supportive care including fluid therapy and diuretics. This case demonstrates that rhabdomvolysis with consequent acute renal failure are able to developed by bee sting.

Identifying the more suitable nostril for nasotracheal intubation using radiographs

Chi, Seong In,Park, Sookyung,Joo, Li-Ah,Shin, Teo Jeon,Kim, Hyun Jeong,Seo, Kwang-Suk The Korean Dental Society of Anesthsiology 2016 Journal of Dental Anesthesia and Pain Medicine Vol.16 No.2

Background: One nostril must be selected for nasotracheal intubation. In some cases, structural anomalies within the nasal cavity hinder the insertion of the tube or complications, such as epistaxis, develop. This study examined the possibility of using radiography to select the nostril that would induce fewer complications. Methods: Four hundred and five patients who underwent nasotracheal intubation under general anesthesia were studied. A 7.0-mm internal diameter nasal right angle endotracheal (RAE) tube and 6.5-mm internal diameter nasal RAE tube were inserted into men and women, respectively. Complications were considered to have developed in cases in which insertion of the tube into the nasal cavity failed or epistaxis occurred. The tube was inserted into the other nostril for insertion failures and hemostasis was performed in cases of epistaxis. The degree of nasal septal deviation was determined from posteroanterior skull radiographs or panoramic radiographs; the incidence of complications was compared depending on the direction of the septal deviation and the intubated nostril. Results: The radiographs of 390 patients were readable; 94 had nasal septum deviation. The incidence of complications for cases without nasal septum deviation was 16.9%, that for cases in which the tube was inserted into the nostril on the opposite side of the deviation was 18.5%, and that for cases in which the tube was inserted into the nostril with the deviation was 35.0%, showing a high incidence of complications when intubation is performed through the nostril with septum deviation (chi-square test, P < 0.05 ). Conclusions: Although there were no differences in the incidence rates of complications between intubation through the left nostril and that through the right nostril, radiological findings indicated that incidence of complications significantly increased when the tube was inserted into the nostril with the septum deviation.

공기 중 toluene diisocyanate의 포집방법에 따른 요중 toluene diamine의 관련성

박근철,김치년,김현수,김형렬,노재훈 한국산업위생학회 2003 한국산업보건학회지 Vol.13 No.1

Toluene diisocyanate(TDI) has been known the materials which is induced occupational asthma, is mostly used by the materials of industrial polyurethane, excreted as toluene diamine(TDA) in case of occurring metabolism in the human body when it inhaled. This research is demonstrated to make scrutiny into efficiency of two differentways of sampling in comparison with the cocentration after make use of the open cassette holder and the modified 2-piece cassette holder which are originaly existing to doing sampling 2,4-TDI as 2,6 TDI in the air, and to present more adequate way to TDI sampling in the air and to present more adequate way to TDI sampling in the air from comparing concentration TDA in a worker's urine with concentration of TDI which is being sampling each ways And this study want to grasp the influence for TDA excretion by exposing TDI from the general character of workers. The study was experimented on the 22 workers from the factory where is pperated paining work using by paints from poly urethane. This study was performed to identify the personal character of workers by using the questionnaire. analysed TDI from 44 sample each in the middle of morning and afternoon and TDA from the 17 workers by take their urine. Open cassette holder is manufactured to face the filter with the outside by remove the modified 2-piece cassette holder eliminated he middle of section and top of the upper holder. As a result of analysis, the concentration of TDI in the air is higher on the mokigied 2-piece cassette holder than the open cassette holder for sampling, There was no different on the concentration of urinary TDA by personal character. The concentration of TDI in the air had a relation with the concentration of urinary TDA no matter what kind of sampling method used, but the sampling by modified 2-piece cassette holder had more relation than sampling by open face cassette holder. As a result of this experiment, the concentration of TDI by sampling from the each cassette holder has shown to us significant relation with the concentration of urinary TDA.

경북 유학산, 천생산과 성암산 일대의 식물군락유형 분석

박강민,김종현,정현아,강치욱,이종운 嶺南大學校基礎科學硏究所 2002 基礎科學硏究 Vol.22 No.-

At the area of Yuhak, Cheonsaeng and Seongam mountains in Kyeongbuk, we studied the vegetation patterns with 75 plots on the base of Braun-Blanquet methods from March to October 2002. For the analysis of community patterns with 75 plots we used interspecies Affinity analysis method, DECORANA and TWINSPAN. The investigated area was divided into 17 communities with 177 species, and 20∼100% of treelayer, 10∼95% of shrublayer and 20∼100% of herblayer. By toe method of affinity analysis, it showed a big community with 86 species, but divided into 6 small groups by ordination and classification methods. Although it appeared as one group by the affinity test, the area divided into two groups by classification method at second level with eigenvalue of 0.320 and 0.430. It shows that the area of Yuhak, Cheonsaeng and Seongam mountains have own properties and in the process of succession.

NP-Hard 문제 증명의 확률적 검사

박지현,정치봉 순천향대학교 기초과학연구소 1999 순천향자연과학연구 논문집 Vol.5 No.1

We studied a new class of NP problems which contains hose languages L for which membership proofs can be verified probabilistically in polynomial time using logarithmic number of random bits and by reading sublogarithmic number of bits from the proof. moreover we showed that approximating clique and independent set problem is NP-hard.

원자력발전소 PSI/ISI 데이터 관리를 위한 지능형 데이터베이스 프로그램 개발(제2보)

박은수,박익근,엄병국,이종포,한치현 한국비파괴검사학회 2000 한국비파괴검사학회지 Vol.20 No.3

제 1보에서 Windows 환경 하에서 PSI/ISI 데이터의 효율적 관리 및 다원적평가와 분석이 가능한 고리 원전 PSI/ISI 데이터베이스 구축과 프로그램 개발(IDPIN)에 대해 소개하였다. 제 2보에서는 월성 원자력발전소 PSI/ISI 자료 관리를 위한 지능형 데이터베이스 프로그램(WS-IDPIN)을 개발하였다. 이 프로그램에는 월성 원전 PSI/ISI 관련 자료 분석 기능, PSI/ISI UT 검사 보고서 양식의 표준화와 전산 시스템화, PSI/ISI 비파괴검사 결과의 통계적 신뢰도 평가 프로그램(depth and length sizing performance 등) 등을 개발하여 원전 PSI/ISI 데이터 관리 전문가시스템(expert system)화에 한 단계 접근하였다. In a previous paper, we have discussed the intelligent Windows 95-based data management program(IDPIN) which was developed for (effective) and efficient management of large amounts of pre-/in-service inspection(PSI/ISI) data of Kori nuclear power plants. The IDPIN program enables the prompt extraction of previously conducted PSI/ISI conditions and results so that the time-consuming data management, painstaking data processing and analysis of the past are avoided. In this study, the intelligent Windows based data management program(WS-IDPIN) has been developed as an effective data management of PSI/ISI data for the Wolsong nuclear power plants. The WS-IDPIN program includes the modules of comprehensive management and analysis of PSI/ISI results, statistical reliability assessment program of PSI/ISI results(depth and length sizing performance etc), standardization of UT report form and computerization of UT results. In addition, the program can be further developed as a unique PSI/ISI data management expert system which can be part of the PSI/ISI total support system for Korean nuclear power plants.

경북 천생산, 유학산, 숲데미산지역의 식물군락유형

박강민,김종현,강치욱,이종운 嶺南大學校基礎科學硏究所 2001 基礎科學硏究 Vol.21 No.-

From April to October 2001, we studied on vegetation of 60 plots through the methods of Braun-Blanquet at Cheonsaengsan, Yuhaksan and Supdemisan in Gyeongbuk. Through the methods of interspecific affinity analysis, DECORANA and TWINSPAN the patterns of plant communities of 60 were analysed. It showed 6 communities at Cheonsaengsan, 5 communities at Yuhaksan, 6 communities at Supdemisan and total appearance of 128 species and covered with 50∼95% of tree layer, 20∼90% of shrub layer, 20∼90% of herb layer. As the result of interspecific affinity analysis it showed one big specific complex composed with 52 species and the 60 plots were divided into 4 groups by classification and ordination. One big species complex as a result of affinity analysis and eigenvalue of 0.303 at first step by classification indicate that Cheonsaengsan, Yuhaksan and Supdemisan are in developing stage of succession.

다중계층망에서 적응적인 채널할당 방법에 관한연구

박윤종,이치문,이광배,김현욱 明知大學校 産業技術硏究所 1999 産業技術硏究所論文集 Vol.18 No.-

This paper proposes a spatially distributed control scheme for a multi-layered cellular system to achieve flexible and high capacity wireless communication system under any traffic conditions including nonuniform traffic conditions. In the proposed system, terminals with lower mobility are connected to the wideband microcell systems to support variety of service including high bit rate data transmission and terminals with higher mobility are connected to the narrowband macrocell systems to reduce delay. To flexibly cope with temporal and spatial variations of traffic conditions, the ratio of the microcell and macrocell terminals as well as system bandwidth are adaptively and autonomously shared by both system Numerical simulation confirms that proposed scheme expressed flexible distributed location.

Correlated Walks의 여러 성질에 대한 소고

박지현,정치봉 순천향대학교 기초과학연구소 2000 순천향자연과학연구 논문집 Vol.6 No.2

일차원 상에서 Random Walk 에서 바로 직전의 step에 영향을 받는다는 제한을 가한 비대칭 Correlated Walk를 다루었다. 특히, 이 논문에서는 생성함수기법을 사용하여 Recurence 성질, 최초 방문시간 평균회귀시간 등에 대하여 엄밀한 식을 유도하였다.