• Current Research on Agriculture and Life Sciences
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• 제14권
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• pp.37-47
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• 1996

The main objectives of this studies are to present the most desirable rice processing complex model system in a given our situations by comparision and analyzing the major factors and, also recommend the future prospect of the rice processing complex in Korea. There are 3 different rice processing complex models in Korea. Those are concrete bin, flat type steel bin and square bin. These systems have a lot of differences and have their own characteristics such as capital requirement, efficiency, storage capacity and quality controls. The major problems of the existing rice processing centers in Korea are high fixed cost and the unbalnced systems. Following is summary to solve this problems: 1. Development of the large scale harvester and high speed continuous dryer. 2. Quality inspective system of bulk grain and large scale temporary storage facilities. 3. Large size readjustment of arable land. 4. Select the convenient location of rice processing center and formulation of well equipment facilities.

• 건축역사연구
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• 제14권2호
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• pp.143-157
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• 2005

This study aims to analyze functions and characteristics of 'Cha-il(遮日)' which was used at ritual events(宮中儀禮行事) in the Joseon dynasty, Joseon dynasty had many ritual events related with O-Rae(五禮). Cha-il was almost used at important ritual events, especially at the congratulatory events. The congratulatory events(宮中宴享) are the representative events were held with many temporary install facilities(假設施設) in a palace. Cha-il was a kind of Korean traditional membrane structures. Cha-il was set up for cutting off interior space from sunlight and rain. In general, Cha-il was Consisted of Cha-il-jang(遮日帳:woven fabric), Cha-il-jook(遮日竹:bamboo column), some ropes, and fixing wares. In the congratulatory events, three types of Cha-il. were set up. Baek-mok-Dae-Cha-il(白木大遮日)was made of cotton cloth. Yu-Dun-Cha-Il(油芚遮日) was made of oiled paper or oiled cotton cloth. Man-Joen-Cha-Il(滿箭遮日) consisted of wooden structure. Baek-mok-Dae-Cha-il(白木大遮日)was set up on the most important area of stage for protecting from sunlight. Yu-Dun-Cha-Il was set up on less important area of stage for protecting from sunlight and rain. Man-Joen-Cha-Il was set up below Baek-mok-Dae-Cha-il for supporting and draining raindrops off. The results of this study were as follows; Functions of Cha-il were to protect ritually space from sunlight and rain, and to extend ritually space, and to reconstruct ritually space. Cha-il was the peculiar temporary install facility which differed from other countries.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제36권4호
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• pp.325-330
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• 2010

Introduction: Mini-implant system is applicable to areas of narrow space and area requiring temporary loading support. The purpose of this study was to evaluate the clinical outcome of a mini-implant system as well as the application of mini-implant system in the dental clinical field. Materials and Methods: The patients who had been operated from Jan 2007 to Dec 2007 in the four dental facility including Seoul National University Bundang Hospital were enrolled. To evaluate the factors associated with the clinical outcome, the patients were classified according to gender, age, area of surgery, type of implant, diameter and length of the implant, and the purpose of the mini-implant system application. Results: From 147 implants, only three implants failed, one of them was for temporary loading. There were no serious surgical or prosthetic complications in this study. Conclusion: An analysis of the preliminary data revealed a satisfactory clinical outcome. However, more long-term evaluation of narrow ridge type as well as the patient’s satisfaction on the use of a provisional type mini-implant system is needed.

• 한국산학기술학회논문지
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• 제21권7호
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• pp.525-536
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• 2020

장애인이 일자리를 얻는데 있어서 큰 장벽에 직면하고 있다는 것은 주지의 사실이다. 그럼에도 불구하고 사회에서 기능적으로 살아갈 수 있는 원동력인 장애인 일자리의 중요성을 고려할 때, 개인의 자아성취감 획득뿐만 아니라 동시에 자립생활을 확립시키는데 있어 장애인에게 직업은 없어서는 안 될 핵심적인 요소라고 할 수 있다. 본 연구는 취업한 장애인들이 지속적인 직업을 유지하기 위한 방안을 제공하기 위하여 장애인들이 직업을 유지하는데 있어 상용근로자와 일용근로자에 따라 업무 지속성에 영향을 주는 변인을 알아보고자 하였다. 이를 통하여 장애인 직업유지에 있어 상용근로자의 경우 근로계약기간 설정여부가 직업유지 기간에 어떠한 영향을 미치는지를 알아보는 것이 본 연구의 목적이다. 연구 자료는 한국장애인고용공단(2019)에서 실시한 2019년 장애인고용패널조사 2차 웨이브 1차 조사의 원자료를 활용하였다. 분석 결과, 상용근로자는 계약기간이 정해져 있는 경우 12개월 이상 직업유지가 높게 나타나고, 일용근로자는 계약기간이 정해져 있지 않는 근로자가 12개월 이상 직업유지가 많은 것으로 나타났다. 따라서 장애 특성을 고려하지 못한 직종으로 장애인들에게 선택권 및 자기결정권에 어려움이 발생하고 있어 국가는 다양한 직종 및 직무개발로 직업을 선택할 수 있는 기회를 제공하여야 하며, 일용근로자들이 근무한 소규모 기업의 장애인 취업 증가는 기업의 규모에 영향을 받고 있는 고용부담금의 다양화가 요구된다. 본 연구는 장애인 직업 계약기간의 설정유무가 장애인들의 직업유지에 있어 유의미한 것을 밝혔다는 점에서 의의가 있다.

• 한국방재안전학회논문집
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• 제12권3호
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• pp.59-67
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• 2019

본 연구에서는 건설현장을 대상으로 무인항공기(UAV) 촬영을 통하여 얻어진 사진측량 자료를 이용하여 작업발판 등의 가설시설물 설치에 대한 적정성을 검토하였다. 연구대상은 강원대학교 삼척캠퍼스내 건물보강공사를 위한 가시설물이다. 검토대상은 강관비계의 띠장방향 비계기둥 간격, 장선방향 비계기둥 간격, 띠장 간격이다. 무인항공기 측량자료를 이용하여 검토한 결과 장선방향 비계기둥 간격은 기준을 잘 준수하여 설치되어 있었으나, 띠장방향 비계기둥 간격과 띠장 간격은 기준에 미달된 개소도 다수 발견되어 개선이 요구되었다. 특히 띠장 간격은 대부분 지점에서 기준에 미달되어 있었다. 무인항공기촬영으로 3차원 자료를 이용하여 입체적인 측량이 가능하여, 타 시설물에 가려져 있거나 내부에 위치한 시설물도 측량이 가능하였다. 무인항공기 촬영을 통하여 신속하게 현장의 상태를 자료화할 수 있으며, 현장인력의 작업을 방해하지 않고 측량을 수행할 수 있었다. 가시설물의 설치기준은 작업자의 안전확보를 위해 반드시 준수되어야 함에도 불구하고 현장에서는 아직 소홀히 다루어지고 있음을 알 수 있었다. 현장공정관리에 무인항공기 등을 활용하여 정기적으로 점검을 할 수 있도록 법적 제도가 보완되어야 한다고 판단되었다.

• 시큐리티연구
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• 제57호
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• pp.9-26
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• 2018

현 정부의 공공부문 '비정규직의 정규직화'라는 정책기조 변화를 반영하기 위해 현재 국가중요시설에서 시설방호 직무를 수행하고 있는 경비업체 소속 특수경비원의 정규직 전환이 진행되고 있다. 특히 국가중요시설로 지정되어 있는 주요 정부청사의 방호인력 구성은 방호직렬 공무원으로 구성된 방호관, 경비업체 소속의 특수경비원, 청원경찰, 경찰로 구성된 청사경비대 등 다양한 형태의 방호인력에 의해 방호직무가 수행되고 있다. 정규직 전환을 위해 국가중요시설에서 방호직무를 수행하고 있는 특수경비원의 직접고용을 위한 방식으로 특수경비원을 직접 고용하는 형태, 공단 설립을 통해 직접 고용하는 형태, 방호관(공무원)으로 신규 채용하는 형태, 자체경비원으로 직접 고용하는 형태, 청원경찰로 직접 고용하는 형태 등의 다양한 전환 방식이 논의되고 있다. 비정규직의 정규직화 정책기조 반영을 위해, 국가중요시설에서 방호직무를 수행하고 있는 경비업체 소속 특수경비원을 직접고용으로 전환하는 방식은 개별 국가중요시설의 방호 환경, 방호인력운영 특성 등 여러 사정을 고려하여 신중하게 진행할 필요가 있다. 특히, 특수경비원의 정규직화 진행과정에서는 전환대상자인 특수경비원, 이해관계자들의 다양한 의견수렴이 반드시 선행될 필요가 있다.

• 건축역사연구
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• 제20권3호
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• pp.7-22
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• 2011

With the accumulations of outcomes from archaeological excavations of mountain fortress of three kingdoms period, there have been studies about time-periodic territory range of mountain fortress, difference in the way(method) of construction, defence system and so on from various points of view. This is an empirical study on the construction method of the valley part of stone fortress. First of all, it is required to secure large quantity of fresh water for those who lived at mountain fortress. Especially when builders of fortress construct a fortification at the valley part of stone fortress, in advance they must sufficiently consider several options including the establishment of sustainable water resources. First, when it comes to build a fortification on a ridge[or a slope] of a mountain, you have only to consider a vertical stress. However, when it comes to build a fortification at the valley part of a mountain, You must have more sufficient preparations for the constructing process. Because there are not only a vertical stress but also a horizontal pressure simultaneously. Second, a fortification of mountain fortress built by using unit building stone is a structure of masonry construction like brick construction, and the valley part of it is where the construction of the fortification begins. Third, when it comes to build a fortification at the valley part of a mountain, it seems that they use a temporary method such as coffer dam in oder to prevent the collapse of the fortification due to heavy rain. Furthermore, in response to a horizontal pressure a fortification is built by the way of its plane make an arch, or by piling up the soil with the plate method(類似版築) and earthen wall harder method(敷葉) they increase cross-sectional area of the fortification and its cutoff capacity. In front direction they put the reservoir facility for the fear that the hydraulic pressure and earth pressure are directly transmitted to the fortification. The process of constructing the fortification at the valley part of a mountain is done in the same oder as follows; leveling of ground(整地) ${\Rightarrow}$ construction of coffer dam ${\Rightarrow}$ construction of the fortification between the both banks of the valley ${\Rightarrow}$ construction of the fortification at bottom part of spill way(餘水路) between the both banks of the valley ${\Rightarrow}$ construction of spill way(餘水路) & reservoir facility ${\Rightarrow}$ construction of the fortification at upper part of spill way between the both banks of the valley. Coffer dam facility seems to be not only the protection device on occasion of flood but also an important criterion to measure the proper height of spill way or tailrace(放水路). This study has a meaningful significance in that it empirically examines the method of reduction of the horizontal pressure which the fortification at the valley part of a mountain takes, the date the construction was done, and wether the changes in climate such as heavy rainfall influence the process of construction.

• 한국건축시공학회지
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• 제14권6호
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• pp.545-550
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• 2014

기반시설이 부족한 지역에서의 군사시설은 천막과 같이 이동 가능한 형태가 필수적이다. 실제로 천막은 적 지역에서의 공격작전 간 가장 일반적으로 운용되는 시설이다. 이 연구에서는 전시 천막형태의 야전형 군사시설의 설치시간 단축을 위한 설치공정 이해도 향상을 위하여, 군사시설 설치에 관한 4D BIM(Building Information Modeling)의 교육적 활용효과를 통계적으로 분석한다. 실험결과에 따르면 기존의 교범 위주의 교육보다 4D BIM을 활용한 교육이 실험참여자의 이해도를 향상시켰을 뿐만 아니라, 실제 야전형 천막 설치시간의 단축에도 기여하였다

• 지질공학
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• 제32권3호
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• pp.363-376
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• 2022

An area under construction for a living facility collapsed around 12:48 KST on 13 January 2021 in Sa-dong, Ansan-si, Gyeonggi-do. There were no casualties due to the rapid evacuation measure, but part of the temporary retaining facility collapsed, and several cracks occurred in the adjacent road on the south side. This study used the potential of synthetic aperture radar (SAR) satellite for surface property changes that lies in backscattering characteristic to map the collapsed structure. The interferometric SAR technique can make a direct measurement of the decorrelation among different acquisition dates by integrating both amplitude and phase information. The damage proxy map (DPM) technique has been employed using four high-resolution Constellation of Small Satellites for Mediterranean basin Observation (COSMO-SkyMed) data spanning from 2020 to 2021 during ascending observation to analyze the collapse of the construction. DPM relies on the difference of pre- and co-event interferometric coherences to depict anomalous changes that indicate collapsed structure in the study area. The DPMs were displayed in a color scale that indicates an increasingly more significant ground surface change in the area covered by the pixels, depicting the collapsed structure. Therefore, the DPM technique with SAR data can be used for damage assessment with accurate and comprehensive detection after an event. In addition, we classify the amplitude information using support vector machine (SVM) and maximum likelihood classification algorithms. An investigation committee was formed to determine the cause of the collapse of the retaining wall and to suggest technical and institutional measures and alternatives to prevent similar incidents from reoccurring. The report from the committee revealed that the incident was caused by a combination of factors that were not carried out properly.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제29권1호
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• pp.43-51
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• 2023

Purpose: To accommodate the increasing number of patients during the COVID-19 pandemic, numerous portable HEPA filter units (PHUs) were installed in the general wards of existing medical facilities(EMFs) to convert them into emergency conversion facilities (ECFs). The purpose of this study was to build a dataset in preparation for emerging infectious diseases in the post-COVID-19 era by analyzing the construction and operation of ECFs. Methods: Field investigations were conducted during ECF operation periods based on the analysis of heating, ventilation, and air conditioning (HAVC) system design documents for six ECFs across Korea. Interviews were conducted with facility managers during the field investigations. Results: When constructing an ECF within an EMF, the installation status and characteristics of the existing system should be considered. Field investigations and verifications of the operation of HAVC systems must be conducted beforehand for smooth ECF operations. If heating and cooling are required with indoor air circulation type equipment in an ECF zone, the implementation of a heating and cooling method that can satisfy the comfort requirements of the occupants while minimizing cross-contamination is essential. When using PHUs that do not meet the performance standards required by medical equipment, the noise level resulting from such equipment operation must be evaluated and improved. Implications: For EMFs, various guidelines that can be referred to for the construction and operation of ECFs must be developed to prepare for emerging infectious diseases in the future.