• Journal of Computing Science and Engineering
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• 제10권1호
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• pp.21-31
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• 2016

With the application and development of biomedical techniques such as next-generation sequencing, mass spectrometry, and medical imaging, the amount of biomedical data have been growing explosively. In terms of processing such data, we face the problems surrounding big data, highly intensive computation, and high dimensionality data. Fortunately, cloud computing represents significant advantages of resource allocation, data storage, computation, and sharing and offers a solution to solve big data problems of biomedical research. In order to improve the efficiency of resource management in cloud computing, this paper proposes a clustering method and adopts Radial Basis Function in order to compress comprehensive data sets found in biology and medicine in high quality, and stores these data with resource management in cloud computing. Experiments have validated that with such a data-compression-based resource management in cloud computing, one can store large data sets from biology and medicine in fewer capacities. Furthermore, with reverse operation of the Radial Basis Function, these compressed data can be reconstructed with high accuracy.

• 대한두개안면성형외과학회지
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• 제21권5호
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• pp.301-304
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• 2020

Orthognathic surgeries often utilize rigid fixation for stabilization of the osteotomy site. The longterm fate of rigid fixations is still under investigation, and whether they should be routinely removed is under debate despite their low complication rates. Here, we report a case where a 26-year-old man suffered high-velocity trauma to his face 7 years after a two-jaw surgery. Computed tomography examination revealed a zygomaticomaxillary complex fracture, and open reduction and internal fixation was performed along with anterior maxillary wall reconstruction using absorbable mesh. Intraoperative examination revealed a broken L-shaped titanium plate near the fracture site with multiple bony fragments near each titanium screw. The rigid titanium system may have caused comminution of the fracture pattern, worsening the severity of the fracture.

• 대한두경부종양학회지
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• 제10권2호
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• pp.163-170
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• 1994

Segmental mandibulectomy causes severe functional disability and cosmetic problem. Many methods of reconstruction have been used but none of these procedures provides the ideal solution. There has been increased interest in the possibility of preserving a portion of the mandible and still carrying out a adequate tumor resection. We experienced four cases of marginal with sagittal mandibulectomy in patients with floor of mouth. buccal. and soft palate carcinoma, and sagittal mandibulectomy in 8 patients with tonsillar carcinoma and a case of marginal mandibulectomy in tonsillar cancer patient. In all cases mandible facing the tumor were successfully resected and repair of the mandible. postoperative facial contour were satisfactory. We think. that these sagittal procedures are oncologically sound in its removal of tumor. biomechanically secure and maximize postoperative rehabilitation while maintaining the normal contour of the face.

• 한국광학회지
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• 제6권4호
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• pp.274-281
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• 1995

본 논문에서는 가상적인 물체를 기록하고 재생하는 새로운 홀로그램 기록방법인 scanned-object holography를 제안하였으며 그 가능성을 이론과 실험을 통해 증명하였다. 이 방법에서는 점광원으로부터 방출되는 구면파의 이동결과와 정지된 기준파를 연속적으로 간섭시킴으로서 점광원의 이동 경로로 표현되는 가상적인 물체를 기록할 수 있었다. 이때 점광원을 실험적으로 구현하기 위해 광섬유 출력단과 펄스형 레이저를 사용하였다.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제16권2호
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• pp.215-220
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• 1994

In the case of the trauma on the maxillofacial region occurred, we think that one of the most important thing is recovery of the function as well as reconstruction of the anatomical form. Especially, it has been that the structure of the surrounded temporomandibular joint has a great possibility to cause mouth opening limitation when a bit of displacement is caused. Therefore, in the case of the trauma on mid-face we think that we treat it after complete evaluate condition of soft and hard tissue surrounding the articular disc as well as fracture site. We report results of our study, since we obtained good results from our study concerning the refixation of the zygomatic arch, high condylectomy, coronoidectomy and myotomy for the patient being suffered from the arthrosis of the temporomandibular joint caused by insufficient fracture treatment of zygomatic arch and coronoid process.

• 건축역사연구
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• 제21권4호
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• pp.25-36
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• 2012

This paper is to review the conclusions of the Athens conference that has so far contributed to the conservation world. It is normally called the conclusions of the Athens conference as the Athens charter. But the conclusions of the Athens are not as same as the Athens Charter regarding the contents. The former had more valuable contents than the latter regarding historic monuments. And the report of the Athens conference including 56 articles and 500 pages with 55 photos was published in 1933 by the International Museums Office. But little attention has been given to the report of the Athens conference. Therefore the point I want to make is to review to the report in order to understand the agenda of the conference and to examine the Anastylosis in Acropolis. In conclusion, these agendas and the articles in the report show us that the conference was sort of milestone with some advanced modern philosophical and technical concepts about conservation and restoration of historic monuments. Also when the term of anastylosis turns to reconstruction in archaeological sites, we are going to face with the problems of authenticity.

• 대한두개안면성형외과학회지
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• 제23권6호
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• pp.278-281
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• 2022

The face is one of the most important parts of the body. Untreated facial fractures can result in deformities that can be harmful to patients. Three-dimensional (3D) printing is a rapidly evolving technology that has recently been widely applied in the medical field as it can potentially improve patient treatment. Although 3D printing technology is mostly used for craniofacial surgery, some studies have proved that it can be used to treat nasoethmoid orbital fractures. In this study, a patient-customized plate was constructed using a 3D printer and applied in a simulated surgery for the treatment of nasoethmoid orbital fracture.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송∙미디어공학회 2021년도 추계학술대회
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• pp.212-214
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• 2021

In a society with Covid-19 as part of our daily lives, we had to adapt ourselves to a new reality to maintain our lifestyles as normal as possible. An example of this is teleworking and online classes. However, several issues appeared on the go as we started the new way of living. One of them is the doubt of knowing if real people are in front of the camera or if someone is paying attention during a lecture. Therefore, we encountered this issue by creating a 3D reconstruction tool to identify human faces and expressions actively. We use a web camera, a lightweight 3D face model, and use the 2D facial landmark to fit expression coefficients to drive the 3D model. With this Model, it is possible to represent our faces with an Avatar and fully control its bones with rotation and translation parameters. Therefore, in order to reconstruct facial expressions during online meetings, we proposed the above methods as our solution to solve the main issue.

• 한국초등수학교육학회지
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• 제20권4호
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• pp.695-715
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• 2016

본 연구는 정다각형 종이접기 활동을 소재로 한 영재교수학습 자료를 개발하고 이를 현장 수업에의 적용을 통해 발견한 교수학습 방법을 개선하는 것을 목적으로 하였다. 동일 학교에 소속한 학생들을 개별학습(1명, 발명영재학급, 과학고 영재교육원 합격), 교사와의 1-1 대면 학습(2명, 일반학급 내 우수 학생), 짝 모둠 학습(4명, 영재학급), 그리고 집단 수업(20명, 영재학급)의 여러 방식으로 유형화한 수업을 진행하면서 김정하(2010)의 정당화 분석틀(PIRSO)을 이용하여 학생들의 정당화 요소를 분석하고 집단 수업에서 정다각형 종이접기 활동의 정당화를 지도하기 위한 개선 방안을 모색하였다. 그 결과 주어진 크기의 색종이를 이용하여 최대 넓이의 정다각형 종이접기 활동 탐구라는 본 연구 소재의 난이도는 초등학교 영재학급용 수업으로 적절하였으며, 개별 학습 방식보다는 교사와의 1-1 대면 또는 동료와의 토론 및 협동 방식이 정당화의 수준을 향상시키는데 더 효과적임이 드러났다. 집단수업을 위한 탐구 활동은 모든 학생에게 모든 내용을 학습하도록 하는 일괄 수업방식보다는 필요에 따라 학생들이 개인별로 탐구하고 싶은 내용을 선택하는 선택 활동 수업 방식으로 변형할 필요가 있으며 정당화에 초점을 맞추어야 하는 과제의 목표는 처음부터 명확하게 제시할 필요가 있음을 확인하였다. 이를 바탕으로 수업의 전개나 활동의 재구성 방식, 발문을 위한 개선 방안을 제안하였다.

• 대한두개안면성형외과학회지
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• 제17권3호
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• pp.154-157
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• 2016

Transient anisocoria is rare during blowout fracture reconstruction. We report a case of transient anisocoria occurring during medial blowout fracture reconstruction and review the relevant literature. A 54-year-old woman was struck in the face and was admitted for a medial blowout fracture of the left eye. During the operation, persistent bleeding occurred. To control this bleeding, a 1% lidocaine solution with 1:200,000 epinephrine was applied to the orbital wall with cotton pledgets. In total, 40 mL of local anesthetic was used for the duration of the operation. After approximately three hours of the surgery, the ipsilateral pupil was observed to be dilated, with sluggish response to light. By 3 hours after the operation, the mydriasis had resolved with normal light reflex. In conclusion, neurological and ophthalmologic evaluation must be performed prior to blowout fracture surgery. Preoperative ophthalmic evaluation is simple and essential in ruling out any preexisting neurologic condition. Moreover, surgeons must be aware of the fact that excessive injection of lidocaine with epinephrine for hemostasis during orbital wall surgery can result in intraoperative anisocoria. Anisocoria-related situations must be addressed in a proficient manner through sufficient understanding of the mechanism controlling the pupillary response to various stimuli.