• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제23권3호
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• pp.39-46
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• 2017

Purpose: Here is little information about China's operation department of general hospital in Korean medical architecture papers, which is inconvenient for scholars engaged in medical building research and comparison. Furthermore, Surgery is to provide patients with surgery and rescue sites, is an important technical department of the hospital, and then with the development of medical technology and people's trust in medical science, the role of the operating room will become increasingly important. Therefore, the purpose of this research is to analyze history, changes and definitions of the operating room and China's operation department of general hospital related laws and regulations for future research to provide effective analysis of data, and find shortcomings. Methods: This research was conducted according to the relevant laws, books, and papers of the operation department of Chinese general hospital. Results: At present hospital construction in China is in the period of rapid development and coupled with the growing medical technology, operating room layout and configuration is still in the continuous trial of continuous improvement stage. Overall, it requires more detailed guidelines to improve the quality of the operating room. Implications: Implications: It is expected that the research of this paper will provide an effective reference for the future research of the operation department of China General Hospital, which can promote and improve the work system of the operation department of China General Hospital.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제23권4호
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• pp.55-65
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• 2017

Purpose: This study is to identify the implications and improvement solutions to plan the local community spaces bringing empty homes back into use that fit for regional characteristics, by analyzing the Empty Home Utilization Project implemented in Nam-gu, Incheon. Methods: Among 20 homes sponsored by the Project, five homes being currently operated were analyzed in depth, and features of exterior and interior spaces, and operational characteristics of the subject homes having been renovated through the project sponsorship were examined. Results: A plan is being established to systematically manage deserted or empty homes by assigning classification to each home in Nam-gu, Incheon and they are being utilized as a community space, a place of business or a cultural art space. Most of the physical improvements only included minor repairs such as redoing interior finish, as no major renovation was implemented including layout change and wall removing. Absence of major changes including improvement of house structure resulted in problems regarding accessibility and safety. Also, there was a limit to utilize the spaces only with support on physical improvement cost for empty homes, and it was identified that positive support for renovation should be conducted in accordance with its uses for the purpose. Implications: To complete the Empty Home Utilization Project successfully, it is most critical to reflect the resident opinions and demands, and discover local operators. Furthermore, for sustainable operation of local community space, additional plans for support would be required including financial support and training local leaders, consulting support for operation, encouraging community participation, and connecting with neighbor community.

• 펄프종이기술
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• 제30권4호
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• pp.28-34
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• 1998

Polyvinyl acetate emulsion has been widely used as adhesives for wood and paper, paint additives and binders for fiber, leather, and other materials because it is an excellent adhesive with many advantages including low in toxicity risks and manufacturing cost. It is expected the consumption of polyvinyl acetate emulsion as adhesives will increase in cigarette industry as well as in paperboard coating industry. Recently the operation speed of the cigarette tip wrapper increased so substantially that improvement of the emulsion properties is required including good wet tack development, narrow and controlled particle size distribution, low viscosity, etc. In this study the effects of such polymerization conditions as the type and amount of emulsifier, internal or external plasticizing, and emulsification methods on the viscosity and particle size of polyvinyl acetate emulsions were examined. Results showed that polyvinyl alcohol with a high degree of hydrolysis and low molecular weight and nonionic surfactants are superior to anionic surfactant in improving adhesion and emulsion stability. They also tend to produce emulsions with smaller particle size. External plasticization with dipropylene glycol dibenzoate was more effective in improving flexibility than internal plasticization with butyl acrylate. Monomer emulsification under high shear was more effective in decreasing the particle size.

• 펄프종이기술
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• 제35권3호
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• pp.21-28
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• 2003

It is essential to use base papers having proper surface characteristics in coating operation for improving coated paper quality and coater runnability. To fulfill these purposes surface sizing of coating base stock with anionic oxidized starch is commonly practiced. It is suggested that use of cationic starch for surface sizing rather than conventional oxidized starch will improve coated paper quality since cationic starch penetrates less into paper structure because of its strong electrostatic interaction with anionically charged paper surface. Strong interaction of cationic surface sizing starch with anionic coating color is expected to promote rapid immobilization of the coating color and improve coating holdout and optical property. The immediate objective of this study was to examine the influence of surface sizing starches on the properties of coated papers. Structural characteristics of the coatings formed on the substrate surface sized with cationic and anionic starches were examined. To enhance the efficiency of cationic surface sizing starch on coated paper properties, strongly charged cationic polymers were added to the surface sizing starch and its effect on coated paper properties was evaluated. Results showed that opacity and light scattering coefficient of coated paper were higher when base paper surface sized with cationic starch was used. Addition of less than 1% of cationic poly-DADMAC to the cationic surface sizing starch improved the opacity of coated paper significantly.

• 디자인학연구
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• 제13권4호
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• pp.145-154
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• 2000

교육의 성과는 합리적인 교과 운영의 방법에 의해서 달성된다고 할 수 있다. 따라서 짧은 기간 내에 학생들의 전문성을 갖추어야 하는 전문대학의 교육은 더욱 효과적인 교육방법이 요구되어지며, 전공과정에서 채택하고 있는 각 교과목의 운영은 학생들의 전문성을 책임질 수 있도록 계획되어져야 하는 것이다. 전공에서의 각 교과목은 학생들의 전문성을 형성하기 위한 교육목표에 밀접한 인과요인으로 작용하기 때문에 각 교과목에서의 교육성과달성은 교육자의 중대한 연구부분으로 인식되게 된다. 이러한 문제 인식을 바탕으로 진행한 본 연구는 산업디자인 학과에서 채택하고 있는 두 개의 교과목(공간디자인/컴퓨터응용디자인)을 연계하여 교육함으로써 두 교과목의 상호관계성에 대한 학생들의 이해의 폭을 넓히고 학습의 집중도를 유발함으로써 각 교과목의 교육 목표를 동시에 달성하는 방법론적인 접근을 하였다. 본 교과 운영의 방법을 통해서 학생들은 두 교과목이 목표로 하는 디자인 지식과 표현기술의 습득은 물론 디자인 전개 과정을 기획하고 전개하는데 자신감을 갖게 됨으로써 교과목 연계를 통한 교육적 효과를 확인하였다.

• 한국정보통신학회논문지
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• 제25권9호
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• pp.1166-1175
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• 2021

국내 스마트시티와 긴급차량 우선신호 제어시스템의 현재 상황과 발전동향을 알아보고, 긴급차량 우선신호 제어시스템의 기존 효과분석과 신호제어시스템의 보안을 위한 국내외 선행 연구 내용을 바탕으로, 긴급차량 우선신호 제어시스템을 구축하고 긴급차량에 실제 적용 및 시험운행을 통해 시간단축의 효과성을 분석하였다. 더불어 실시간 신호시스템 제어의 보안관리 및 안정적인 서비스를 위해 기존 ISMS-P 인증제도와 한국인터넷진흥원 사이버보안 가이드의 보안요구사항과 보안위협 항목에 따른 보안대책의 연관성에 따라 비교하여 맵핑함으로서, 인명구조나 화재 등 긴급상황 발생 시 시민의 소중한 생명과 재산을 지킬 수 있는 골든타임 확보 가능성을 높일 수 있도록 ISMS-P 인증제도의 기술적 통제항목 개선을 제안한다.

• 한국유체기계학회 논문집
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• 제16권1호
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• pp.17-23
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• 2013

Recently so much attention has been focused on renewable energy and, since its sources to exploit are already almost saturated in the country, the practical alternative to this situation could be a micro-turbine which uses the low head and low flow. From a point of view of local micro-turbine design capacity and manufacturing technology, the problems such as the accumulation of technical skills, the expansion of related industries, the national policy expansion and the turbine efficiency to improve are still vulnerable and it's true that there are also negative views about the economic feasibility, the technicity and the operation management of the micro-turbine. However, if the improvement can be done in technology of low-head double regulation micro-turbine to generate more outputs and the operation management can be reliably realized, the micro-turbine will be re-evaluated as an appliable source of renewable energy, even the output is small, and by a paradigm shift, it could realize a power generation as an economic and rational system.

• Journal of Trauma and Injury
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• 제24권1호
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• pp.52-55
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• 2011

The spleen is the most frequently injured organ following blunt abdominal trauma. However, delayed splenic rupture is rare. As the technical improvement of computed tomography has proceeded, the diagnosis of splenic injury has become easier than before. However, the diagnosis of delayed splenic rupture could be challenging if the trauma is minor and remote. We present a case of delayed splenic rupture in a patient with underlying liver cirrhosis. A 42-year-old male visited our emergency department with pain in the lower left chest following minor blunt trauma. Initial physical exam and abdominal sonography revealed only liver cirrhosis without traumatic injury. On the sixth day after trauma, he complained of abdominal pain and diarrhea after eating snacks. The patient was misdiagnosed as having acute gastroenteritis until he presented with symptoms of shock. Abdominal sonography and computed tomography revealed the splenic rupture. The patient underwent a splenectomy and then underwent a second operation due to postoperative bleeding 20 hours after the first operation. The patient was discharged uneventfully 30 days after trauma. In the present case, the thrombocytopenia and splenomegaly due to liver cirrhosis are suspected of being risk factors for the development of delayed splenic rupture. The physician should keep in mind the possibility of delayed splenic rupture following blunt abdominal or chest trauma.

• 한국전자통신학회논문지
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• 제11권4호
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• pp.379-386
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• 2016

고속철도를 운영할 뿐 아니라, 고속열차를 생산하는 우리나라는 고속철도를 효율적으로 운용하기 위해 각 분야에서 승차감 향상, 주요부품 자동진단, 차상 전기검측, 소음저감 등 여러 가지 기술을 개발하고 있다. 본 논문은 그 중에서도 철도 무선통신분야의 기술을 이해하기 위해, 유럽과 중국 및 미국의 철도 무선통신시스템의 운용현황을 설명하고, 국내 철도에도 적용될 철도용 LTE 시스템의 기술현황을 소개한다. 아울러 현재 운용하고 있는 국내 철도무선통신망 현황과 4세대 무선통신망에 대한 국가연구개발사업의 개략 및 고속철도 현장에서의 시험계획을 소개한다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2001년도 추계종합학술대회
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• pp.552-555
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• 2001

본 논문에서는 컴퓨터 및 통신분야의 급속한 기술발전으로 마이크로세서의 성능향상과 제어용 LAN(Local Area Network)이 실용화됨으로 시스템 구축에 대한 유연성이 높아져 중앙처리장치(CPU)를 기능별로 분리하고 LAN 통신선로(Dataway)를 이용하여 프로세스의 제어기능은 분산시키고, 정보처리 및 감시와 운전조작기능은 집중화시켜 전체시스템을 구성하므로 신뢰성 향상을 도모하는 분산제어시스템의 개발배경과 적용과정 그리고 제철, 전력, 환경, 수 처리, 석유화학 등의 산업현장에서 다방면에 적용 및 응용되고 있는 분산제어시스템을 고찰하여 보고 향후 분산제어시스템의 발전방향까지 살펴보았다.