• 아태비즈니스연구
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• 제12권4호
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• pp.299-312
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• 2021

Purpose - The purpose of this study is to analyze Trade Structure after Korea and Colombia FTA, and identify its problems and suggest measures that can be taken by the government and corporations to reinforce economic cooperation. Design/methodology/approach - To improve the level of contribution of the study, an empirical analysis is necessary. However, due to limited data access, the study will approach the topic of trade relations between Korea and Colombia with various statistics and literature. Findings - First, there is an urgent need for changes in import-export goods between Korea and Colombia, as trade is focused on specific items. Second, although foreign direct investment from Korea to the Colombia is centered in manufacturing and wholesale & retail, there should be different investment strategies by industries. Third, it is necessary to reinforce commercial cooperation. Research implications or Originality - The Free Trade Agreement between Korea and Colombia entered into force in 2016. Under the agreement, both countries will eliminated all tariffs within ten years after it takes effect. Reinforcing economic cooperation with Colombia is extremely important for Korea in terms of entering and dominating Colombian market. However, there is still a lack of research on the Colombia, and corporations that aim to enter Colombian market face difficulties due to lack of information. This study analyzes the recent trends of problems of trade between Korea and Colombia and suggests solutions for boosting trade to provide proper strategic guidelines for Korea that are planning to expand to Colombian market.

• International Journal of Computer Science & Network Security
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• 제22권10호
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• pp.97-106
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• 2022

Objective. Nanotechnology is spreading among all areas of life, from everyday devices to medicine. The concept of nanotechnology argues that not only can new physical and chemical properties of materials be discovered, but also the new potential of nanostructures when reduced to the nanoscale. The growing interest in the application of nanomaterials in dentistry contributes to the proliferation of the range of nanomaterials used by specialists. The purpose of this review of information sources was to analyze the prospects for the use of nanomaterials in dentistry. Methods. We used the bibliographic semantic method of research, for which we analyzed electronic databases of primary literature sources Scopus, Web of Science, Research Gate, PubMed, MDPI, and MedLine. English-language scientific articles published after 2017 were taken into consideration. Results. According to the results of a search study among modern information primary sources, nanotechnology improves the preventive properties of oral care products, improves the structural-mechanical and aesthetic properties of composite mixtures for dentistry, overcomes the problems of the clinical application of dental implants. Despite the prospects of nanotechnology applications in medicine in general and dentistry in particular, the existing economic and technological problems require a thorough solution for further implementation of nanostructures. Scientific novelty. For the first time, the analysis of modern trends in the application of nanotechnology in dentistry is carried out and the peculiarities of materials are highlighted, the problems and prospects of nanostructures implementation in modern dental implantology are given, physical, chemical, mechanical, and antibacterial properties of nanomaterials are evaluated. The effect of nanomaterials on the microbial adhesion of the tooth or implant surface is described. Practical significance. The presented publication can become a scientific basis for the solution of urgent problems hindering the introduction of nanotechnology into dental practice. Conclusions. Thus, the use of nanostructures opens up great opportunities for the treatment of a wide range of diseases, not only of dental nature but also in medicine in general.

• 한국인구학
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• 제23권2호
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• pp.167-187
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• 2000

우리사회에서 노인 자살자의 수와 자살율이 지난 십 년간 지속적으로 증가하고 있다. 이는 한국 노인들이 당면하고 있는 문제들(경제적 불안정, 조기퇴직, 건강악화, 가족부양체계의 약화, 정서적 고립 등)의 심각성을 시사하고 있다. 하지만 노인자살에 관한 국내 연구는 거의 없는 실정이다. 노인자살현상에 대한 체계적인 연구를 통하여 자살의 배후에 있는 노인문제 혹은 생활조건을 확인하여 노인복지 차원에서 일차적 예방 대책을 강구하여야 할 것이다. 특히, 자살위험이 높은 특정 노인인구집단을 중심으로 자살예방 대책이 조속히 마련되어야 할 것이다. 따라서 이 연구는 우리 나라 노인문제의 구조적 상황과 노인자살과의 관련성을 사회학적 시각(교환이론과 사회통합이론)으로 조망해 본 후 이를 기초로 노인자살을 유도하는 노인생활의 조건을 개선할 수 있는 노인복지과제를 제시하여 한국노인의 자살율 증가를 예방하고자 하는데 그 주된 목적이 있다.

• 한국건설관리학회논문집
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• 제14권5호
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• pp.3-11
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• 2013

정부에서는 국가정책 아젠다인 '저탄소 녹색성장'을 실현시키기 위한 노력들을 전산업부문에 걸쳐 진행하고 있다. 건설산업 부문도 예외가 아니어서 에너지 및 온실가스 배출저감을 위한 기술개발이 활발히 이루어지고 있으며 특히, 건축물은 국가 총에너지소비의 20% 이상을 차지하고 있어 주거건물의 에너지 효율화 및 이산화탄소 배출량 저감은 국가적으로 시급한 과제라 할 수 있다. 또한 최근 사회적으로 이슈화되고 있는 주택전세난으로 서민들의 고통이 가중되고 있어, 시장수요에 능동적으로 신속하게 대응할 수 있는 주택생산시스템이 요구되고 있다. 이에 본 연구에서는 친환경적이고 시공 효율성을 극대화시킬 수 있는 시스템을 구축하기 위해 국내 유닛 모듈러 주택생산체계를 조사 분석하여 문제점을 찾아내고 이에 대한 개선안을 제시함으로써 유닛 모듈러 주택의 활성화 기반을 위한 제시하고자 한다.

• 대한안전경영과학회지
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• 제15권3호
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• pp.113-125
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• 2013

According to 2012 OECD environmental report, Korea was ranked as the first country of water stress. Water footprint is a method to calculate water usage during the life cycle of a product from material procurement through production to disposal to recycle and to quantify the load to water resources. In water footprint calculation, water consumption unit is used. Agricultural water use is over 48% so it is urgent to mange that area Korea needs to spread the discussion about water footprint as quickly as possible, for the study to prevent social and environmental problems due to water shortage. This paper, through water footprint calculation and comparison in Chungju and Geochang areas, looks to counter measures for water risk, targeting domestically-produced apple.

• 교육녹색환경연구
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• 제13권1호
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• pp.32-40
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• 2014

In an effort to resolve environmental pollution problems, developed countries enforce green building certification systems. The same is true in Korea. However compared professional accreditation system to certification systems did not systematically in Korea. Therefore, in accordance with development of green building related systems and technology the requirement for foster green building professionals is urgent. Accordingly this study is purposed to analyze and propose that green building professional accreditation system development and operation of the direction. Through data analysis domestic and international green building professional accreditation system for draw a development plan. And then conduct an expert Delphi survey reflected in the survey results to development plan.

• 융합보안논문지
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• 제4권3호
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• pp.27-35
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• 2004

이동통신 분야에서 최근 눈에 띄는 트랜드는 무선 통신과 컴퓨터 네트워크 기술 간의 통합이이며, WAP 디바이스들이 그 대표적인 예라고 할 수 있다. 컴퓨터 시스템 메니저들은 종종 긴급히 수정해야할 시스템 결함을 맞곤 하지만, 보통 원격으로 시스템을 관리할 수 있는 컴퓨터에 접속하지 못하는 경우가 많다. 이런 문제를 해결하기 위해, 이 논문에서는 WAP 인터페이스를 제공하는 시스템 관리 툴을 설계하고 아키텍쳐에 관해 설명하려고 한다.

• 한국자원식물학회지
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• 제14권2호
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• pp.129-132
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• 2001

According to the research of the cultivation result on the spot farmers for 5 years in order to investigate its cultivation conditions and problems of Lycium chinetrse Mill, the development of the variety with early mature, pest tolerance, and high yielding is urgent and it is call for the development of rooted cutting cultivation by testing of bed soil, growth regulator and cutting times. The development of cultivation method with planting year, planting density, supplementary period and amounts of supplementary of Lycium chinense Mill planted in growing field are required and for the disease and the effective control of disease and insect pest resistance is needed by auxotrophic fertilizing and organic agricultural method, met by agricultural chemicals.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1999년도 학회창립 10주년 기념 1999년도 가을 학술발표회 논문집
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• pp.15-218
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• 1999

Concrete is the most generous, universal main structural material. There is active study for processing quality, stable quality mangement. Especially, strength is basic factor of evaluating stability of concrete building. Regaining required strength and homogeneity is very important to get self-stability in building to evaluate another characteristic. Concrete strength is important to the quality management. But, result of hardened concrete's quality test is hardly reflected to works immediately. When required strength is not enough, it could bring out safe problem, economic and administrative cost. It is pointed out that problems from strength evaluation, so early evaluation of concrete quality is required. From the trend that accelerating high quality concrete development, improving the method of quality test and early evaluation measure is urgent project. Throughout this report, it is suggested the method with use of microwave to evaluate 28-days concrete strength.

• 설비공학논문집
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• 제15권6호
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• pp.524-532
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• 2003

In this paper, a personal air-conditioning system considering the human thermal adaptability is analyzed. Although the conventional personal air-conditioner was proofed to be satisfactory in providing for the thermal comfort, it is being questioned on the term of its energy efficiency. Therefore, it is important and urgent to develop new types of personal air-conditioning system with sustainable control strategy that can ensure energy saving and thermal comfort simultaneously. In this study, we first examined the problems of the conventional personal air-conditioning system with field interview and laboratory experiment in terms of usage, management and thermal comfort, and proposed the energy-saving personal air-conditioning system considering the human thermal adaptation. Then a laboratory experiment was performed to analyze the characteristics of the human thermal comfort under severe indoor thermal conditions, which were controlled using a new personal air-conditioning unit designed according to the proposal. The results help to illustrate the alleviation effect of the new personal air-conditioning system, and indicate that the thermal alleviation time is useful to maintain the thermal comfort with efficient usage of energy.