정상면역을 가진 성인에서 발생한 식도 방선균증

김현수 ( Hyun Soo Kim ),천종운 ( Jong Woon Cheon ),김민수 ( Min Su Kim ),정창길 ( Chang Kil Jung ),김경록 ( Kyung Rok Kim ),최재원 ( Jae Won Choi ),강동우 ( Dong Woo Kang ),김선영 ( Sun Young Kim ) 대한소화기학회 2013 대한소화기학회지 Vol.61 No.2

Hyun Soo Kim, Jong Woon Cheon, Min Su Kim, Chang Kil Jung, Kyung Rok Kim, Jae Won Choi, Dong Woo Kang and Sun Young Kim1 Departments of Internal Medicine and Pathology1, DongKang Medical Center, Ulsan, Korea Actinomycosis is a chronic suppurative disease and caused by Actinomycosis species, principally Actinomyces israelii, which are part of the normal inhabitant on the mucous membrane of the oropharynx, gastrointestinal tract, and urogenital tract. It usually affects cervicofacial, thoracic and abdominal tissue. Cervicofacial type has the highest percentage of occurrence with 50%. Actinomycosis frequently occurs following dental extraction, jaw surgery, chronic infection or poor oral hygiene. It may also be considered as an opportunistic infection in immunocompromised patients such as malignancy, human immunodeficiency virus infection, diabetes mellitus, steroid usage or alcoholism. But, actinomycosis rarely occurs in adults with normal immunity and rare in the esophagus. We report an unusual case of esophageal actinomycosis which was developed in a patient with normal immunity and improved by therapy with intravenous penicillin G followed oral amoxicillin, and we also reviewed the associated literature.

서초동(서울시 서초구)의 거미상

김주필(Joo Pil Kim),정혜리(Hye ri Jeong),김대희(Dae Hee Kim),박동우(Dong Woo Park),서재웅(Jae Woong Seo),이현우(Hyun woo Lee) 한국거미연구소 2017 한국거미 Vol.33 No.1

2016년 3월 31일부터 7월 31일까지 서울특별시 서초구 서초동에 위치한 서울고등학교 교정 일대를 서울고등학교 환경생물부 부원들이 채집 조사한 결과 20과 43속 53종의 거미가 조사 연구되어 이에 보고하는 바이다. From March 31st to July 31st in 2016, members of an environmental biology club at Seoul High School located in Seocho-gu, Seoul, Dae-Hee Kim, Dong-Woo Park, Jae-Woong Seo and Hyun-woo Lee, collected 20 families 43 genera 53 species of spiders and report the result of the study here.

한의진단명과 진단요건의 표준화 연구 II (표준화 실례) : 2차년도 연구결과 중간 보고

양기상,최선미,최승훈,안규석,박경모,박종현,김성우,신승호,정우열,전병훈,고현,김정범,신상우,김성훈,김동희,권영규,엄현섭,장혜옥 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1

The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the second year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows; - differential diagnosis according to condition of body fluid, differentiation of syndromes according to the state of qi and blood, differential diagnosis according to relative excessiveness or deficiency of yin and yang(氣血陰陽津液辨證) - differentiation of diseases according to pathological changes of the viscera and their interrelation - analyzing and differentiating of febrile diseases in accordance with the theory of the six channels(傷寒辨證) The individual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name(異名), notion of diagnosis pattern, index of differentiation of symptoms and signs(辨證指標), the main point of diagnosis, analysis of diagnosis pattern(證候分析), discrimination of diagnosis pattern(證候鑑別), a way of curing a diseases(治法), prescription(處方), herb in common use(常用藥物), diseases appearing the diagnosis pattern(常見疾病), documents(文獻調査). This study was carried out on the basis of the Chinese documents and references.

Transcriptome profiling of olive flounder responses under acute and chronic heat stress

Woo‑Jin Kim,이규빈,Dain Lee,Hyun‑Chul Kim,Bo‑Hye Nam,Hyungtaek Jung,이선주,Kyunghwan Kim 한국유전학회 2021 Genes & Genomics Vol.43 No.2

Background The olive founder (Paralichthys olivaceus) is a saltwater fsh, which is valuable to the economy. The olive founder strives to adapt to environmental stressors through physiological, biochemical, and transcriptional responses. The rise in water temperature threatens the growth, development, reproduction, and survival of olive founder. Each organ in the olive founder can diferentially respond to heat stress. Objectives The purpose of this study is to investigate organ-specifc transcriptional changes in olive founder tissues during heat stress. Methods In this study, transcriptome dynamics of the gill, liver, and muscle of olive founder to acute or chronic heat stress were investigated. Results Principal component analysis plotting revealed that the transcriptome of each organ is quite separated. K-means clustering, gene ontology, and Kyoto Encyclopedia of Genes and Genomes pathway analysis showed the diferential transcriptome responses of each organ to heat stress. Heat stress commonly afects the pathways involved in the correct protein folding, DNA repair, and cell cycle. Conclusion Our results may provide a valuable molecular basis of heat acclimation in fshes.

최대 칩두께를 이용한 쏘블레이드에서 칩핑과정의 역학적 모델링

김경우,김우순,최현민,김동현 한국공작기계학회 2001 한국공작기계학회 춘계학술대회논문집 Vol.2001 No.-

In order to establish the optimum process parameters and diamond saw blade composition for machining natural stone, the chip formation process and the wear process must be understood. Diamond saw blade is one of the most effective, versatile, and extensively used methods of processing rock and other hard materials, such as granite, marble, concrete and asphalt. For many years, it has been known that chip thickness is one of the most significant in the understanding of the sawing process, and other variables such as force and power have been correlated with it. In this study, mathematical relations of a material chipped by a single grit of the saw blade will be undertaken. The material chipping geometries have been mathematically defined and derived as maximum chip thickness.

공구형상이 칩유동에 미치는 영향에 관한 연구

김경우,김우순,윤주식,채왕석,김동현 한국공작기계학회 2000 한국공작기계학회 추계학술대회논문집 Vol.2000 No.-

A new methodology is presented to evaluate material properties at high strain rates and high temperatures based on orthogonal metal cutting experiments and FEM simulations. Average strain rate and average temperature found in the deformation zone are computed and flow stress data at these conditions are modified until cutting forces calculated in simulations match those determined in experiments. Material properties obtained from this method were verified by additional metal cutting simulations. Derivation from cutting forces measured in experiments was less than 10%. The feasibility of tool design using FEM simulations is also demonstrated.

피질골 절제술을 응용한 견치 및 대구치의 후방 견인

김상철,김선영,김현숙,정혜승,김현태,조진우 대한치과교정학회 2005 대한치과교정학회지 Vol.35 No.2

빠르며 정확하고 안전한 치아이동을 목표로 삼고 있는 교정치료에서 최근 새로이 도입된 피질골 절제술과 견인 골형성술을 응용한 치아이동에 대하여 알아보았다. 특히 견치나 대구치의 후방이동은 기존의 치아 이동 양식으로는 조절이 어렵고, 장기적인 기간에 불가피한 치아이동이다. 피질골 절제술과 견인 골형성술을 동반하여 상당히 효과적인 원심이동을 기할 수 있었던 증례를 통하여 적용 술식, 견인 장치 등을 논하고 그효과를 파악하였다. 이런 술식을 통해 빠른 치아 이동과 이에 따른 전반적인 치료기간의 감소가 가능하였으며, 무리한 치아이동에서 발생할 수 있는 고정원 소실이나 치근흡수, 치주조직의 파괴 같은 부작용도 줄일 수 있었다. Tooth movement facilitated by corticotomy and distraction osteogenesis was discussed. In this study, a portion of cortical bone which can provide resistance to tooth movement in alveolar bone was removed. Active bone deposition was then possible in the tension side. Teeth moved at such a speedy rate as we could not imagine from conventional orthodontic treatment, which lead to the reduction of the total treatment period. Posterior movement of the canine or molar teeth was possible without any side effects such as anchorage loss, root resorption or periodontal breakdown.

산지하천에서 빛과 초식에 의한 부착조류의 생체량변화

김현우,김현주,김진수,윤해순,주기재 東亞大學校附設基礎科學硏究所 1998 基礎科學硏究論文集 Vol.15 No.1

빛과 초식에 의한 부착조류의 생체량 변화에 대한 영향을 평가하기 위하여 자연기질과 인공기질(유약을 칠하지 않은 타일: 3.7×9.5×2cm)을 이용하여 부분적으로 음지화된 2차 산지하천에서 실험하였다. Open canopy(상대적 빛 투과율: 20∼50%, chl. a: 9.5±3.0㎎/㎡, n=25)에서는 closed canopy(<6% 상대적 빛 투과율, 3.2±0.9㎎/㎡, n=17)보다 높은 부착조류 생체량을 유지하였다. 하천 주변식생의 잎 성숙과 잦은 강우에 의해서 여름의 부착조류 생체량은 봄과 겨울에 비하여 낮았다. 봄에 인공기질에 부착조류가 부착하는 속도는 겨울보다 빨랐으며 겨울에는 자연기질 수준(8∼9㎎/㎡)에 이르기 까지 최소 5∼6주 정도 소요되었다. 초식자인 다슬기는 출입을 제한한 실험구에서는 출입이 허용된 대조구보다 약간 높은 생체량(AFDW, chl. a)을 보였다. 결론적으로 빛이 부착조류 생체량에 증가에 미치는 영향은 초식 보다는 더 큰 것으로 사료된다. Effects of light and grazing on the biomass development of periphyton were evaluated using natural and artificial substrata (unglazed tile: 3.7×9.5×2cm) in a partially shaded 2nd order mountain stream. In open canopy (relative light input 20∼50%), a relatively high biomass (chl. a: 9.5±3.0㎎/㎡, n=25) was maintained than that of closed canopy (<6% of light input, 3.2±0.9㎎/㎡, n=17). Due to shading and frequent rainfalls, biomass was lower during the summer than in the spring and winter. During the spring, colonization of periphyton on artificial substrata occurred faster than in winter and it took a minimum of 5∼6 weeks to reach the biomass of natural substrata (8∼9㎎/㎡). When snails were allowed to freely enter the chamber (mean density: 114 ind./㎡) with artificial substrata, biomass accumulation (chl. a, AFDW) was low compared to the snail excluded enclosure (50∼90% of ungrazed substrata). It was concluded that the light input on periphyton biomass in a partially shaded stream played a more important role than grazing.

CU175NS 적층판 복합재의 절삭가공특성 연구

김동현,김우순,김경우 한국공작기계학회 2001 한국생산제조학회지 Vol.10 No.1

Carbon fiber epoxy composite are widely used in airframe structures, space vehicles, sports equipment, and high speed reciprocating parts fur industrial machinery. In this paper, the groove processing characteristics of carbon fiber epoxy composite was experimentally investigated in order to study the endmill operation of fiber reinforced epoxy composites. Followings are main finding from the experimental results. First, the cutting and bending force in groove processing of the carbon fiber epoxy composite increased as the spindle speed deceased. They also decreased as the table feed increased. Second, the good cutting status obtained at the entrance of groove while delamination occurred at the exit of groove. Third, the regular high speed steel endmill was not efficient. thus the new endmill such as coated carbide rooter endmill or diamond endmill should be used for the effective endmill operation of carbon fiber epoxy composites.

니켈기 내열합금 절삭시 공구에 따른 마모와 칩생성

김우순,김경우,김동현 한국공작기계학회 2001 한국생산제조학회지 Vol.10 No.1

Nickel-based heat resisting alloys are commonly used for high temperature applications such as in aircraft engines and gas turbines. In this paper, the machinability of Nickel-based heat resisting alloy was investigated with respect to the wear and the chip formation by tool type and cutting condition. Relationship between three types of tool and chip formation Bras experimentally investigated. Among the three types of tool tested, coated tools(CVD, PVD) are available for the difficult-to-cut-materials such as Nickel-based heat resisting alloy and etc.