• Title/Summary/Keyword: Operation history

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Cryptogenic Temporal Hollowing

  • Park, Ie Hyon;Kwon, Heeyeon;Kim, Sang Wha
    • Archives of Craniofacial Surgery
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    • v.17 no.4
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    • pp.218-221
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    • 2016
  • Temporal hollowing is a common complication that occurs after coronal approach surgeries. However, temporal hollowing without previous nerve damage or trauma history is rare. Herein, we present a patient with cryptogenic temporal hollowing. A 22-year-old man without any history of craniofacial interventions or trauma presented with temporal hallowing. Magnetic resonance imaging revealed fatty degeneration of the left temporalis muscle. Electromyography and nerve conduction study showed no signs of neurologic abnormalities. The patient received autologous fat injection of 30 mL harvested from the left thigh using the modified Coleman technique. Temporal hollowing is commonly caused by atrophy of the superficial temporal fat pad. Its incidence is reported to be as high as 6% after coronal approach operation. Augmentation using porous hydroxyapatite or titanium mesh is a treatment option. Autologous fat graft can also be an option for mild to moderate temporal hollowing. In this case, a patient with no history of trauma, surgery, or myogenic disease developed temporal hollowing. Further study of the little-known cryptogenic form of temporal hollowing is warranted.

A Comparative Study on the Historical Concept of Michel Foucault and Manfredo Tafuri -Architecture, Ideology, and Geneology of Power- (미셀 푸코와 만프레도 타푸리의 역사이론 비교연구 -건축, 이데올로기, 권력의 계보학-)

  • Jung, In-Ha
    • Journal of architectural history
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    • v.8 no.3 s.20
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    • pp.91-111
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    • 1999
  • This study tries to compare the architectural thought of Michel Foucault with that of Manfredo Tafuri in order to make clear the architectural identity as a social institution. In Michel Foucault's case, the archeology of discourse and the geneology of power were central method to understand the history of occidental society since the Renaissance. Four him, architecture is assumed as a mechanism of operation which make the power effectively radiate in th space. He thinks that a new discursive space was arranged since the 18th century in Europe, the architecture played a role to coordinate divers powers. Mafredo Tafuri, architetural historian, depends on the criticism of ideology in search of the relation between the economic system of capitalism and modern architecture and urbanism. He thinks that all architecture is an institution. And any attempt to overthrow the institution, is bound to see itself turned into a positive contribution and into an ideology, So all architectural attempts to conceal the contradiction of capitalism are negated. This different perspective on architecture exposes many points of dispute: historical periodization, disciplinary limit of architecture, understanding of Enlightenment architecture, utopia and heterotopia, etc.

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Development of Risk-Appearance Frequency Evaluation Model for Railway Level-Crossing Accidents (철도건널목 사고 위험도-발생빈도 평가모델 개발)

  • Kim, Min-Su;Wang, Jong-Bae;Park, Chan-Woo;Choi, Don-Bum
    • Journal of the Korean Society of Safety
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    • v.24 no.3
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    • pp.96-101
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    • 2009
  • In this study, a risk-appearance frequency evaluation model for railway level-crossing accidents is developed with the frequency estimation based on the accident history. It follows the worldwide common safety management approach and reflects the operation conditions and accident properties of the domestic railway system. The risk appearance frequency evaluation process contains a development of accident scenarios by defining the system configurations and functions, and a frequency estimation of hazardous events based on the accident history. The developed model is verified with the accident history during 5 years('03-'07) for 3 hazardous events: 'Being trapped in level crossing(Hl)', 'Crossing during warning signal(H2)' and 'Breaking through/detouring the barrier(H3)'. This risk appearance frequency evaluation model will be combined with a consequence evaluation model so as to offer full risk assessment for the railway accident. The accident risk assessment will contribute to improving the safety management of the railway system.

Design and Implementation of Spatiotemporal Operators for History Management System of Cadastre and Cadastral Map (토지대장/지적도 이력관리 시스템을 위한 시공간 연산자의 설계 및 구현)

  • Kim, Sung-Ryoung;Kim, Sang-Ho;Lee, Hwa-Jong;Ryu, Keun-Ho
    • Journal of Korea Spatial Information System Society
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    • v.2 no.2 s.4
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    • pp.127-142
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    • 2000
  • GIS Tools is able to not only store the integrated information between attribute data and spatial data, but also analyze them. Most of GIS Tools support current information of land. However, lawsuit of right of possession as well as statistic of past data for land policy may need historical information. Therefore, in the paper, we designed the spatiotemporal operators what can handle the historical information. and implemented them. The spatiotemporal operators are used in the history management system of Cadastre and Cadastral map based on GIS. The historical information is generated in spatial operation of spatiotemporal operators and then the implemented operators provide a function to store the historical information, and handle them.

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Investigation on the Organizational Structure for Overseas Conservation Centers - Focused on the Italian Conservation Centers - (해외 문화재보존기관 운영현황 -이탈리아 문화재보존기관을 중심으로-)

  • Yi, Hyeon-Ju;Yu, Jae-Eun;Seo, Min-Seok
    • 보존과학연구
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    • s.29
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    • pp.239-254
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    • 2008
  • In this division, regarding the establishment of operation system of Conservation Science Center, we have tried to find out research trends and advanced operation system of Italian conservation centers, which play an active part in the field of restoration of cultural properties internationally. And the results will be utilized for the establishment of Conservation Science Center. Italy is a country having a long history of restoring cultural properties. In this field, it is largely divided into research & development institutes. And restoration institute and they are operated under system in which research & development institute implement research projects for restoring cultural properties and restoration specialists take receive the results and utilize them. They have different business processing system compared to Conservation Science Center which will implement research-development and restoration(conservation treatment) concurrently. Each institute, carrying out differentiated and specialized research projects per region, maintains smooth cooperative relationship with national institutes, neighboring universities and even afflated schools through horizontal-mutual collaboration joint research, and sharing of equipments, in the field of cooperation between national institutes, cooperation with neighboring universities, and connection to belonging schools. There institutes show us a good example which can be utilized in the future organizational structure of Conservation Science Center. It is expected that their operation system and possessed technologies such as utilization of human resources pool and cooperation with relevant fields can be used usefully in the management and operation of Conservation Science Center.

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Simulation for the Optimal Operation of Soyanggang Dam and Hwachon Dam in the Flood Periods (홍수시(洪水時) 소양강(昭陽江)댐 및 화천(華川)댐의 최적운영(最適運營)을 위한 시뮬레이션)

  • Lee, Kil Seong;Jun, Kyung Soo
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.6 no.1
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    • pp.13-24
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    • 1986
  • A real-time hourly operation model for the flood control of Soyanggang Dam and Hwachon Dam, which are located in the North Han River is developed. The method is based on simulation with a feedforward-feedback control. The feedforward control was mainly concerned with providing the release history from the single dams. The outflows from the single dam operation rules with forecasted inflows were used as the inputs to simulation. And then feedback control is applied to reduce the peak discharge at the junction. Also, sensitivity analysis of the operation model was provided to respect the temporal and spatial distribution of storms to the model.

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DURABILITY IMPROVEMENT OF A CYLINDER HEAD IN CONSIDERATION OF MANUFACTURING PROCESS

  • Kim, B.;Chang, H.;Lee, K.;Kim, C.
    • International Journal of Automotive Technology
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    • v.8 no.2
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    • pp.243-248
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    • 2007
  • The durability of a cylinder head is influenced by the thermal and mechanical history during the manufacturing process, as well as engine operation. In order to improve the durability of cylinder head, both load from engine operation and the preload conditions from the manufacturing process must be considered. The aluminum cylinder head used for a HSDI diesel engine is investigated to reduce the possibility of high cycle fatigue crack in this study. FE analysis is performed to elucidate the mechanism of high cycle fatigue crack in the HSDI diesel cylinder head. Two separate approaches to increase the durability of the cylinder head are discussed: reducing load from engine operation and re-arranging preload conditions from the manufacturing process at the critical location of the cylinder head. Local design changes of the cylinder head and modification of pretension load in the cylinder head bolt were investigated using FE analysis to relieve load at the critical location during engine operation. Residual stress formed at the critical location during the manufacturing process is measured and heat treatment parameters are changed to re-arrange the distribution of residual stress. Results of FE analysis and experiments showed that thorough consideration of the manufacturing process is necessary to enhance the durability of the cylinder head.

A Clinical Study of Ten Cases of Strabismus in Children by Oriental Medicine (소아사시 10례의 임상적 연구)

  • Kim, Joong-Ho
    • Korean Journal of Oriental Medicine
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    • v.1 no.1
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    • pp.321-333
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    • 1995
  • The author performed in 10 cases under the age of 13 years who were visited to hospital from July 1994 to July 1995. I have assessed information such as type of deviation, detected time of strabismus, past history, family history. The most of patient were esotropia. I have experienced good improvement to recover strabismus by the Oriental Medicine. The acupuncture points of B2, TE23, S1, G14, E36 were used. Herbal medicine was treated GAMIBOJOONGYKGI-TANG. It was supposed to encourage digestive system and to continue elastic capacity. From the results of this study, it is effective to change of correct position at the deviatinal eyeball and to treat amplyopia with strabismus. It was reported possble to treat strabismus without operation and glasses.

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A study on the correlation of tourism development with conservation activities in the 1930s through the repair work on the main building of J angansa temple (장안사 대웅전 보존 수리공사와 1930년대 금강산 개발 - 근대기 건축문화유산 보존과 관광지 개발의 영향관계 연구)

  • Seo, Hyowon
    • Journal of architectural history
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    • v.29 no.3
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    • pp.25-36
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    • 2020
  • The purpose of this study was to analyze the correlation between conservation activities and the development of tourism in the modern period in the Korean peninsula. The main building of Jangansa Temple, located in Mt. Geumgang, was repaired in the 1930s. During the repairs, the Japanese General-Government actively engaged in the development of Mt. Geumgang and raised funds for the operation of the Korean Peninsula through tourism revenue. The repair work was carried out under the influence of the Mt. Geumgang development project. And its influence is revealed by reviewing official documents recording repair work. This study tried to clarify the relationship between development and repair work through official documents.

Primary Rib Chondrosarcoma in a Dog (원발성 개 늑연골육종 1예)

  • 권오경;이충호;최재훈;최지혜;김대용;윤정희;최민철;윤화영;남치주
    • Journal of Veterinary Clinics
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    • v.17 no.1
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    • pp.261-265
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    • 2000
  • Primary rib tumors occur in dogs at a much lower frequency than appendicular bone neoplasms. A 3-year-old 3.5kg female maltese was referred to the Veterinary Medical Teaching Hospital because of a 2-month history of severe coughing and a 1-month history of dyspnea, gaging, and anorexia. The plain thoracic radiography revealed a huge well-defined mass in the left thoracic cavity, and a diagnosis of primary rib chondrosarcoma was established by histopathologic evaluation of the surgical biopsy specimen. At operation, a 8-x12-x4.5-cm relatively large firm mass was found filling the lumen of the thoracic, which was diffusely attached to the left 2-9th rib. This mass oppressed the heart, left lung and diaphragm.

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