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무인이동체 환경을 위한 고신뢰, 저지연 정보 전송 기술
김원준,임구영,김승년,심병효 한국통신학회 2018 정보와 통신 Vol.35 No.3
4차 산업혁명 시대를 맞이하여 전 세계적으로 다양한 융복합 기술이 각광받고 있다. 그 중 새로운 성장동력으로 급부상 중인 무인이동체 시장은 2015년 251억 달러에서 2025년에는 1,537억 달러로 향후 10년간 연평균 20%의 폭발적 성장을 이어갈 전망이다. 이러한 무인이동체 시장의 성장을 견인하기 위한 핵심기술로 고신뢰, 저지연 통신에 대한 연구개발이 활발히 이루어지고 있다. 본 고에서는 무인이동체 환경을 지원하기 위해 필수적인 고신뢰, 저지연 통신에 대한 주요 기술 동향에 대해 살펴보고, 물리계층에서 고신뢰, 저지연 정보 전송 기술을 소개한다.
이종호,전세일,명훈,임구영,서병무,최진영,정필훈,김명진,남일우,김종원,민병일 대한구순구개열학회 2000 대한구순구개열학회지 Vol.3 No.1
While in endonasal rhinoplasty transection and resection of nasal structures is primarily used for correction of nasal deformities, open rhinoplasty is performed using sutures and repositioning of nasal structures in the repair of severe nasal deformities. We reviewed our experiences in the repair of cleft nasal deformities from 1991 to 1999 year in our institute, and compared the results of open rhinoplasty with endonasal rhinoplasty. In overall 164 cases of rhinoplasty in cleft nasal repair, open rhinoplasty was done in 13 cases. Male patients were 10, female 3(age between 6 to 34 years old). In this article, our experience, together with review of literatures of open rhinoplasty in the cleft nasal deformities are reported.
이종호,전세일,명훈,임구영,서병무,최진영,정필훈,김명진,홍삼표,이재일,임창윤 대한구순구개열학회 2000 대한구순구개열학회지 Vol.3 No.1
Many efforts are made to achieve satisfactory cosmetic and functional result in the repair of cleft lip. However, repair may be complicated in many cases by distortion of the vermilion border, obliteration of the normal contour of the philtrum, and eclabium in spite of many methods used in these days. To achieve better results in cleft lip repair, thorough understandings of the relationship between the surface morphology of the upper and lower lip and the underlying musculature is necessary but reports about this topic is rare. So, our studies were performed on the full-thickness upper lips containing both philtral ridge up to columelar base and lower lip, 4 post-mortem specimens of 2 females and 2 males aged from 16 to 42, using serial histological sections taken in the transverse and vertical planes under light microscopy. Thorough understanding of the anatomical relationships is established and on the basis of our findings, we can postulate some criteria to create a normal and natural philtrum in a patient with a cleft lip, it would be necessary to restore the normal deep muscle attachments and superficial dermal attachments of the orbicularis muscle, to close the lip without tension, to restore thickness of the philtral ridge, and to minimise nonelastic scar tissue.
Cytokeratin의 RT-PCR 및 면역조직화학적 분석을 이용한 구강편평세포암종의 임파절 미세전이 진단과 예후인자 효용성 평가
박성진(Sung-Jin Park),이원덕(Won-Deok Lee),임구영(Ku-Young Lim),강진한(Jin-Han Kang),명훈(Hoon Myung),이종호(Jong-Ho Lee),김명진(Myung-Jin Kim) 대한구강악안면외과학회 2005 대한구강악안면외과학회지 Vol.31 No.2
Purpose: The lymph node status assessed by conventional histological examination is the most important prognostic factor in patients undergoing surgery for oral squamous cell carcinoma. The presence of lymph node metastasis has a strong adverse impact on patient survival even after extended radical resection. Despite these findings, tumour recurrence is not rare after surgery, even when histological examination shows no lymph node metastasis. Recently, molecular- genetically and immunohistochemically demonstrated micrometastasis to the lymph nodes has been shown to have a significant adverse influence on survival in patients with squamous cell carcinoma and histologically negative nodes. The present study sought to determine the incidence and clarify the clinical significance of molecular-genetically and immunohistochemically demonstrated nodal micrometastases and to correlate these data with the stage of oral cancer. Methods: Lymph nodes systematically removed from 71 patients who underwent curative resection between 1998 and 2003 with head and neck squamous cell carcinoma were examined molecular-genetically to detect cytokeratin 5 mRNA with RT-PCR and immunohistochemically to detect cells that stained positively for cytokeratins with the monoclonal antibody cocktail AE1/AE3. The postoperative course and survival rates were compared among patients with and without micrometastases, after numerical classification of overt metastatic nodes. Results: micrometastases were detected in 43(60%) of 71 patients by RT-PCR and 26(36%) of 71 patients by immunohistochemistry. By RT-PCR analysis, patients exhibiting a positive band for CK 5 mRNA had a significantly worse prognosis than those were RT-PCR negative. By immunohistochemistry, the presence of micrometastasis did not predict patient outcome. Conclusion: Micrometastases detected by RT-PCR may be of clinical value in identifying patients who may be at high risk for recurrence and who are therefore likely to benefit from systemic adjuvant therapy.