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퍼지 평가함수를 이용한 변전소 주 변압기 사고시 복구계획
장승필,김세호 濟州大學校 産業技術硏究所 1999 산업기술연구소논문집 Vol.10 No.2
This paper proposes an optimal restoration plan using Fuzzy evaluation function when the M.Tr fault occurs in the distribution substation. The elements of evaluation function are the switching number of circuit breaker and disconnector switch. the load balancing. Evaluation function is calculated to determine optimal restoration plan through minimization problem. When the black-out load exceeds the margin of M.Tr capacity, the restoration plan considering the priority customer is introduced.
퍼지 평가함수를 이용한 변전소 주 변압기 사고시 복구계획
장승필,김세호 제주대학교 산업기술연구소 1999 尖端技術硏究所論文集 Vol.10 No.2
This paper proposes an optimal restoration plan using Fuzzy evaluation function when the M.Tr fault occurs in the distribution substation. The elements of evaluation function are the switching number of circuit breaker and disconnector switch, the load balancing. Evaluation function is calculated to determine optimal restoration Plan through minimization Problem. When the black-out load exceeds the margin of M.Tr capacity, the restoration plan considering the priority customer is introduced.
이종호,이세영,김명진,이은진,안강민,김성민,최원재,명훈,황순정,서병무,최진영,정필훈 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.2
The surgery of oral and maxillofacial area poses the risk of cranial nerve damage such as trigeminal nerve or facial nerve. Inferior alveolar nerve is prone to damage in the third molar extraction, implant installation, orthognathic surgery, open reduction and rigid fixation, and tumor ablation surgery. On the other hands,facial nerve is likely to be damaged or sacrificed with trauma or parotidectomy. In case of inferior alveolar nerve injury, the incidence is reported to be about 1.3%. The nerve function will almost recover in minimal damage, but it won't recover at last in total damage of a part of nerve unit. In latter cases, nerve regeneration in intended by allograft as nerve substitute or various route of merve condit. But the recovery with autograft is believed to be most relialbe mrthod in the rapair of long-span(longer than 15㎜)nerve defect. We have performed autologous sural nerve graft in the repair of nerve defect, which is caused by resection of benign or malignant tumor. Hereby we report the method of nerve harvesting, recovery of defected peripheral nerve and the complications of donor site with the discussion of sural nerve anatomy.
하치조신경 및 설신경 손상 평가를 위한 한국인 정상 성인의 하순-이부 및 혀의 감각 조사
이종호,이세영,송승일,이은진,안강민,김성민,명훈,황순정,서병무,최진영,정필훈,김명진 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.2
In the head and neck area, there are so many sensory nerves, which are sometimes injuried iatrogenically or inadvertently so that involved patients complained of the loss of sensations. In such cases, it is important to judge the degree of injuries and regeneration of nerve for better diagnosis and treatment. Seddon and Sunderland's classification, which is commomly used, is focused on histological change and nerve conduction. As times goes by, it is difficult to access patient's sensory disturbance by this method. Until now, so many methods such as contract threshold, direction, two-point discrimination, pin prick, thermal discrimination and current perception threshold have been introduced for sensory evaluation. However, there hasn't been enough information regarding each methodology nor integrated standard methodology for the measurement. the purpose of this study is to get Korean adult normative sensory values of lower lip,chin and tongue using modified methods of contact thershold, ditection, two point discrimination, pin prick, thermal discrimination and assess degree of regeneration of sensory nerve damage.