http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이현직,홍종철,나서희,박헌수 대한이비인후과학회 2010 대한이비인후과학회지 두경부외과학 Vol.53 No.9
Epithelial myoepithelial carcinoma is a rare tumor with slightly less than one percent of salivary gland neoplasm. Histologically, the carcinomas are characterized by a mixture of trabecular structure with outer myoepithelial cells and inner ductal cells, which are confirmed by electron microscopy and immunohistochemistry. Although this neoplasm exhibits high degree of cellular differentiation histologically, it is classified into low grade carcinoma because of its locally infiltrative,destructive growth pattern, and tendency to metastasize. We report a 45-year-old woman with epithelial-myoepithelial carcinoma arising from a submandubular gland, one of the most unusual locations. Korean J Otorhinolaryngol-Head Neck Surg 2010;53:582-4
일시적인 횡와 자세와 흉와위 영상에서 폐 불투과도의 상관관계
이현직,정지윤,최우신,이동훈,이영재,장진화,장동우 한국임상수의학회 2015 한국임상수의학회지 Vol.32 No.4
The lung opacity on radiography is influenced by various factors. The physical density of the lung and the attenuation ensured on computed tomography (CT) scans is determined by three components : lung tissue, blood, and air. Temporary right lateral recumbency may responsible for the increase of opacity on ventrodorsal projection view. Thus, our aim is to demonstrate that the effect of right lateral recumbency posture on right lung opacity using radiograph and CT scan. In this study, 62 dogs without clinical or radiologic signs of cardiopulmonary disease are selected. Thorax radiographs per 30 seconds for 2 minutes (30s, 60s, 90s, 120s) were performed for 62 dogs. After discussion of the radiographic findings of lung field by two radiologists and a student at Chungbuk national university veterinary medical center a consensus opinion was recorded. Computed tomography per a minute (1 min, 2 min) for 2 minutes were performed for 2 dogs. Mean x-ray attenuation of lung was measured quantitatively using software at two levels (aortic arch and basal level). Among 62 dogs with radiograph comparison, 9.3% of dogs showed influence by postural effect. However, all 2 dogs with computed tomography comparison, showed influence by postural effect. In conclusion, position dependent changes of lung density in CT exam are not consistent with thoracic radiograph.
Web GIS를 이용한 학교시설물 유지관리 시스템 구축
이현직 尙志大學校 生産技術硏究所 1998 生産技術論叢 Vol.6 No.-
F.M(Facility Management) system include the province of an assembly an administration system. An assembly an report administration combine the plane surface element of distributing wide area with the solid body element that could draw the form and size of institution. FM system's the object is maintaining FM. FM system present the position, size, connection and content of every variety facility. On the map and an outline sketch elements. They are present by a diagram element and an undiagram element. Making use of it, it is the generally organization of analyzing and maintenance controlling. To keep step with approaching the 21th century, economical development and together with complication of society and advance of industrial structure are getting. Therefore, the information land, environment and traffic are asked of quickness and accuracy. But on suddenly transformation and a complexing of drawing and faithlessly management of many materials, the actual condition waterwork and drainage system, electriccty, communication, LNG, and so on, about facility aren't oriped correctly for the purpose of solving of problem and the effective preservation and management, FM system are necessary. In this investigation, our the drawing and material through that sangji university existing business of FM are getting a computer through a GIS. Therefore the materials are used effective, and it is easly modified, maintained and controlled. Our investigation 's object is the public ownership and practical use of information to mark use of constructing Web GIS on the internet.
이현직 尙志大學校 生産技術硏究所 1998 生産技術論叢 Vol.6 No.-
I While a lot of information are created and changing by the development of today's society yet we need a lot of time and effort to obtain the terrain analyzation. But by using GIS system in analyzing the terrain, the utility factor of time and economy was increased which made it possible to acquire lot more terrain information, yet it shows lots of defect in. In this research we have analyzing the Wonju city's terrain based on data that is needed to analyze terrain using the digital mapping and Landsat image, using MTA and IA Tool that is provided from Intergraph's GIS software MGE for our object. Analyze of terrain by using the digital mapping we abstracted the contour lines and using these lines we created the three dimensions model, and basing on it we executed elevation, aspect, slope, viewshed analyzation, and analyze using the Satellite image took to analyze the use land, soil temperature vegetation, land moisture capacity to contain which based on Landsat TM image.
NGIS구축을 위한 국가기본도 DIGITAL MAPPING에 관한 연구
이현직 尙志大學校 1996 論文集 Vol.17 No.-
Recently, the National Geographic Information System Project is promoted to construct of Database related to topographic and spatial data. This study is purposed to establish the reasonable process of National Basemap Digital Mapping which has been done with the first phase of the NGIS project. As the results of this study, the reasonable process of 1:5,000 scale National Basemap Digital Mapping is established. And, after finding out the problems of Digital Mapping criteria, the optimal method of National Basemap Digital Mapping was suggested.
무지 형성술 및 전내측 대퇴부 천공지 피판의 연속 술기를 이용한 수부 절단 손상의 재건 - 증례 보고 -
이현직,어수락,조상헌,Lee, Hyun-Jic,Eo, Su-Rak,Cho, Sang-Hun 대한미세수술학회 2012 Archives of reconstructive microsurgery Vol.21 No.1
Purpose: Thumb reconstruction plays most important role in hand injuries because total loss of a thumb constitutes about 40% disability in the hand. The reconstruction can be accomplished by pollicization, free toe-to-thumb transfer, wrap around procedure and lengthening extraction. However, we sometimes need consecutive or double free flaps in the reconstruction of mutilating hand injuries. Methods: We reconstructed a mutilating hand injury in a 54-years old man. Because of severe crushing injury of right thumb and index fingers, we reconstructed a thumb with pollicization using nearly amputated middle finger. Although it survived completely, the adjacent soft tissues which had been covered by fillet flap from the space past was necrosed on 1 month. We debrided the necrotic tissues and covered it with anteromedial thigh perforator free flap consecutively because he had an anatomical variation in branches of lateral femoral circumflex artery. Results: He had an uneventful postoperative course without any complication such as infection, dehiscence and flap necrosis. Three months later, he had undergone tenolysis and defatting procedure of flap site. He recovered the some amount of grip function and was happy with the result. Conclusion: In severe hand trauma including thumb amputation, thumb reconstruction using pollicization and perforator free flap could be an alternative option. It provides minimal donor site morbidity and an acceptable functional result.
Mitochondrial oxidative stress regulatory approaches for diabetic encephalopathy
이현직,김대현,김혜진,조항효 충북대학교 동물의학연구소 2022 Journal of Biomedical and Translational Research Vol.23 No.4
Diabetic encephalopathy is a major complication with cognitive impairment and neurodegeneration in patients with type 1 or type 2 diabetes mellitus (DM). DM-induced glucolipotoxicity is a risk factor for Alzheimer’s disease–like phenotype, including amyloidogenesis, tau hyperphosphorylation, and neuronal apoptosis. Although the detailed mechanism underlying the pathogenesis of diabetic encephalopathy remains unclear, mitochondrial oxidative stress is emerging as a key factor for diabetic complications and neurodegeneration. A deeper understanding of the regulatory mechanism of mitochondrial oxidative stress under hyperglycemic conditions will provide insights into the development of therapeutic strategies for diabetic encephalopathy. Here, we review the role of mitochondrial oxidative stress in diabetic encephalopathy and the regulatory mechanisms by which high glucose induces the generation of mitochondrial reactive species oxygen species in neuronal cells. This review also summarizes the mitochondrial-dependent and -independent pathways (O-linked-N-acetylglucosaminylation, calcium, and glycogen synthase kinase 3β signaling) that regulate mitochondrial oxidative stress in a DM model.
갑상샘 결절의 수술 전 진단에서 초음파 유도하 심부 생검 면역 조직화학적 검사의 유용성
이현직,홍종철,이재훈,홍숙희,박헌수 대한이비인후과학회 2010 대한이비인후과학회지 두경부외과학 Vol.53 No.9
Background and Objectives The diagnosis of thyroid nodular diseases is critical for clinical management. Because of the histological similarity of follicular patterned thyroid lesions,the differential diagnosis is often difficult to determine, even with permanent sections. For this reason,we assessed the preoperative diagnostic usefulness of immunohistochemical staining for the four potential markers of malignant thyroid nodule, β-galactosil binding lectin (Galectin-3),Hector Battifora Mesothelial cell (HBME-1), cytokeratin-19 (CK-19) and high molecular weight cytokeratin (HMW-CK) in tissues obtained by ultrasound-guided core needle biopsy. Subjects and Method The immunohistochemical expression of Galectin-3, HBME-1, CK-19 and HMW-CK were evaluated in 43 preoperative thyroid lesions obtained to assess their potential as markers in the diagnosis and classification of thyroid malignancy. We compared the preoperative expression of the four markers with the results of postoperative permanent pathology. Results The expression patterns and positive rates of four markers were the variables in 4thyroid lesions; however, all markers were strong in malignant thyroid nodules, especially in papillary carcinoma. There were no significant differences in the expression rates of the four markers between follicular carcinoma and follicular adenoma. The sensitivity of HBME-1 for thyroid malignancy was the highest (86%) among the four markers, but the sensitivity of combinational expression using two markers, especially Galectin-3 or HBME-1 (95%), HBME-1 or HMW-CK (90%), was higher than that of the expression using one marker for thyroid malignancy. Conclusion The four markers were reliable markers for papillary carcinoma. In preoperative differential diagnosis of thyroid nodule, we suggest that the combinational expression using two makers is more useful than a single marker expression. Korean J Otorhinolaryngol-Head Neck Surg 2010;53:564-70