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- 저자 : 이충현(Lee Chung Hyun) (검색결과 56 건)
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이충현,정근채,Lee, Chung-Hyun,Jeong, Keun-Chae 한국건설관리학회 2012 한국건설관리학회 논문집 Vol.13 No.1
도심지 건설 프로젝트에서 적정한 기초공법을 선정하는 것은 매우 중요한 의사결정 중 하나이다. 그러나 아직도 적지 않은 프로젝트에서 단순히 과거의 경험이나 숙련된 기술자의 의견에 기초하여 기초공법을 선정하고 있다. 본 연구에서는 기초공법결정과정을 보다 선진화하기 위해 계층분석법(Analytic Hierarchy Process; AHP)과 선호도함수(Preference Function; PF)를 이용하여 적정 기초공법을 선정하는 의사결정지원시스템을 제안한다. 제안된 시스템에서 계층분석법은 평가기준 간의 상대적 중요도를 반영하기 위해, 또한 선호도함수는 의사결정자의 기초공법 적합도에 대한 선호도를 고려하기 위해 이용된다. 제안된 의사결정지원시스템을 기 수행된 프로젝트 사례에 적용해본 결과, 시스템이 도출한 기초공법과 전문가들이 현장에 대한 면밀한 검토 후 선정한 기초공법이 동일함을 알 수 있었다. 제안된 의사결정지원시스템은 건설현장에서 최적의 기초공법을 선정하기 위한 의사결정 시 매우 유용한 도구로 활용될 수 있을 것으로 기대된다. It is one of the most important decision making problems to select the adequate foundation practice for the downtown construction project. However the foundation practice has not been selected systematically yet by considering various construction field conditions in many projects. The foundation practice is often informally selected on the basis of only past experiences and skilled engineer's opinion. For making the selection process systematically, in this study, we propose a decision support system (DSS) for selecting foundation practices based on the Analytic Hierarchy Process (AHP) and the Preference Function (PF). In the proposed DSS, the AHP is used for making the selection process more reasonable and the PF is used for considering the decision maker's preference. To validate the proposed DSS, we apply the proposed DSS to the pre-performed construction projects. The application results show that the proposed DSS gives the same foundation practices with the implemented foundation practices that the skilled foundation engineers select after carefully analyzing construction field conditions. The proposed DSS can be used as a useful tool for making decisions to select the foundation practice in the construction fields.
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탐침법으로 실패한 선천성 비루관 협착환자에서 이차적 수술방법에 따른 수술효과 비교
이충현,이정헌,양재욱.Chung-Hyun Lee. M.D.. Jeong-Heon Lee. M.D.. Jae-Wook Yang. M.D. 대한안과학회 2005 대한안과학회지 Vol.46 No.5
Purpose: Evaluate the surgical results and clinical value of monocanalicular stenting (Monaka?)(FCI Ophthalmics, Marshfield Hills, MA, U.S.A) and balloon catheter dacryoplasty (DCP) using PTCA balloon (Stormer?) for congenital nasolacrimal duct (NLD) obstruction in children. Methods: The authors performed monocanalicular stenting (Monaka?) and balloon catheter (Stormer?) DCP as a secondary treatment of 25 children (27 lacrimal systems) over 12 months of age who had undergone ineffective probing treatment. The patients were followed up over 3 months and the postoperative outcome was assessed by fluorescein dye test. Results: Nine of eleven children (nine of eleven lacrimal systems, 81.8%) and seven of nine children (seven of nine lacrimal systems, 77.7%) showed objective and subjective improvement, respectively. Conclusions: Monocanalicular stenting and balloon dacryoplasty are excellent secondary treatments for congenital nasolacrimal duct obstruction after initial probing and irrigation surgery have been failed. Balloon dacryoplasty is a new procedure in improve the life-quality and reduce the complications rather than monocanalicular stenting.
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이충현,허준,Chung-Hyun Lee,Jun Her 대한안과학회 2005 대한안과학회지 Vol.46 No.11
Purpose: Although the treatment of choice for bullous keratopathy is typically penetrating keratoplasty (PKP), not all patients are suited for this treatment. Thus, we evaluated the clinical effects of phototherapeutic keratectomy (PTK) on pain relief and on the improvement of photophobia and visual acuity in patients suffering from bullous keratopathy. Methods: Twenty-three patients with bullous keratopathy who were awaiting PKP and suffering from ocular pain, photophobia, and cosmetic problems, were assessed. Twelve eyes were treated with PTK using the excimer laser (VISX STAR S3, Irvine, CA, U.S.A). Another 11 eyes were treated with eye drops or other conservative modalities. Statistically significant differences in pain relief, photophobia improvement, and cosmetic improvement between two groups were assessed by Fisher`s exact test. Results: Twelve eyes with bullous keratopathy underwent PTK. At post-operative 1 month, 83% of patients showed relief of pain, 75% of patients showed improvements in photophobia, and 58% of patients had increased visual acuity of one or more line. The overall satisfaction rate of PTK was 91%, but 67% of patients showed recurrence of corneal opacity and bullae formation at 6 months after the procedure. Conclusions: Phototherapeutic keratectomy (PTK) reduced pain and improved visual acuity slightly in patients with bullous keratopathy. This procedure could be considered a valuable alternative treatment modality while awaitng PKP.
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악간고정 없는 하악골 골절의 관혈적 정복술: 후향적 연구
이충현(Chung-Hyun Lee),김철환(Chul-Hwan Kim) 대한구강악안면외과학회 2011 대한구강악안면외과학회지 Vol.37 No.4
Introduction: Maxillomandibular fixation (MMF) is essential before surgery under general anesthesia in maxillofacial trauma patients. MMF is used basically to reconstruct the occlusion and occlusal stability to recover the facial shape and oral functions. The arch bar and wire is a traditional method for MMF, but it can not only bring pressure to the periodontal ligaments and teeth but also cause a penetrating injury to the surgeons. Materials and Methods: In this study, 198 patients with an open reduction using a manual reduction without MMF from September 2005 to May 2010 in Dankook University Dental Hospital were subjected to a follow-up evaluation during the postoperative 4 months periods. This study evaluated the incidence of complications according to the condition of the patient (gender, age), the state of bony union of the fracture sites and a numeric rating scale evaluation for postoperative pain scoring. Results: 1. The complications were classified into major and minor according to the seriousness, and the major complication rate was as low as 2.02%. Only 2 cases of re-operations (1.01%) were encountered. In the classification according to the fracture line, plate fracture was observed in both cases of mandibular symphysis fracture, and angle fractures and loosening of two screws were noted in the case of mandibular angle fracture. 2. The complication rate was similar regardless of gender and age. 3. The degree of bony union was satisfactory, and the complication rate was reduced as the bony union improved. 4. More patients complained of pain as the operation time was increased. Conclusion: The use of MMF is not always necessary if a skilled assistant is provided to help manually reduce the fracture site. Compared to other studies of mandibular fracture surgery using MMF, the complication rate was similar using only manual reduction and the patients discomfort was reduced without MMF.
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이충현(Lee, Chung-hyun) 한국불교상담학회 2020 불교상담학연구 Vol.15 No.-
현대인의 주요 정신질환 중 하나인 중독은 인지의 문제가 아닌 의지의 문제로도 이해할 수 있다 대개 중독자들은 자신이 반복하는 문제 행위의 심각성을 인식하고 있고 이를 개선하려 마음먹기도 하지만 제대로 실천하지 못한다. 불교에서 업의 핵심은 의지 로 이해된다. 선이나 불선의 의지로 짓는 업은 반드시 과보를 야기한다. 자신의 운명에 핵심적 변인은 어떤 의지를 가지고 어떻게 실현하는가이다. 의지를 올바로 실현함으로써 선업을 쌓고 보다 건강한 정신생활을 유지할 수 있다. 본 연구는 설일체유부의 무표업(無表業) 개념을 활용하는 중독치료 방안을 모색한다. 무표업은 업이면서도 색법으로서 몸에 상속되는 업력에 해당한다. 이는 신·어·의·삼업 각각의 개별적 실재성을 주장하는 유부 업설에서만 찾아볼 수 있는 고유한 개념으로 선 혹은 불선의 명료한 의지가 성취되는 순간 표업(表業)과 함께 야기되어 해당 유정에게 영향력을 행사하는 것으로 간주된다. 의지가 선하였으면 불선한 행위에 저항하는 업력이 되고 불선하였다면 선한 행위에 저항하는 업력으로 작용한다. 현재 자신의 마음상태와 관계없이 몸에 의지하여 해당 유정에게 일관된 영향력을 행사하는 무표업은 자신의 문제를 인식하고 개선하려는 마음이 있더라도 이를 실현하지 못하고 문제 행동을 반복하게 되는 중독의 문제를 다루는데 활용될 수 있다. 무표업을 활용한 중독 치료방안을 살펴보는 본 연구는 먼저 업의 핵심인 의지와 무표업 개념을 알아보고 둘 사이의 관계에 대해 검토한다 그 다음 무표업 개념을 활용한 구체적인 중독 치료의 방법을 제시한다. 그리고 이 방법이 어떻게 상담현장에서 적용되는지 논자의 실제 중독상담사례를 통해 확인한다. Addiction, one of the main mental disorders, can be regarded as not a cognitive disorder but a volition disorder. Most addicts are aware of their addiction state and its seriousness, but they fail to realize their volition not to repeat the addicted behaviour. The heart of Karma is considered as ‘volition’, which is ‘cetanā’, in Buddhism. Karma with good or evil will inevitably causes its result. The vital point of changing one’s destiny is what volition he has and how he realizes it. Besides, by realizing his volition properly, he can build good karma and maintain his mind without big troubles and distress. This study finds the addiction treatment with ‘Avijnapti-karma’ concept of Sarvāstivādin. It is not only karma but also r pa, matter, and also regarded the power of karma to be continued in the one’s body. It is the unique concept to be found only in Sarvāstivādin thought because they insist on the individual existence of the three karmas respectively, body, speech, and mind. This karma or rūpa coincides with vijnapti-karma when one’s strong volition is realized. After the very instant, that karma experts strong its influence on him as the power of karma, which restricts himself not to break the initial volition. It is maintained by leaning on his body and constantly affects him regardless of his current mind state till it ends. Therefore, it can be used to treat the addiction disorder of repeating the troubled behavior even though he has the will or desire to fix that problem. In order to study the treatment of addiction with ‘Avijnapti-karma’, this article examines two main concepts, the ‘cetanā’, which is the core of karma, and ‘Avijnapti-karma’, and then checks how ‘Avijnapti-karma’ is applied into this treatment. Moreover, the writer’s counselling case is introduced to show how it works in the actual problem.
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