• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2008년도 춘계학술대회 논문집
• /
• pp.1289-1293
• /
• 2008

A technology for inevitable integration as well as an ability of development of technology according to professional fields is needed and supported for securing technology in the era of international competition. In other words, advanced business technique and technology applied for streamlining of management are required and the relations between operations and systems could be clarified. This paper reviews the course for development of process used in the systems engineering and business administration and tries to seek the way of training professionals in a variety of fields for elevating domestic technologies in different fields to the international level. Particularly, it tries to get the way of overcome the present technical restriction that depends on imports through matching a hazard analysis method with the method above mentioned. Especially, it tries to present the way of contributing to securing software safety on the basis of the importance of development of process model that takes the life cycle into consideration.

• 상하수도학회지
• /
• 제34권6호
• /
• pp.481-493
• /
• 2020

Deep learning models, which imitate the function of human brain, have drawn attention from many engineering fields (mechanical, agricultural, and computer engineering etc). The major advantages of deep learning in engineering fields can be summarized by objects detection, classification, and time-series prediction. As well, it has been applied into environmental science and engineering fields. Here, we compiled our previous attempts to apply deep learning models in water-environment field and presented the future opportunities.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2022년도 춘계학술대회
• /
• pp.566-568
• /
• 2022

최근 4차 산업과 코로나19의 비대면 사회로 인해 가장 떠오르는 기술로 메타버스가 있다. 메타버스의 핵심적인 기술 중 하나로 VR·AR 기술은 의료, 교육, 서비스 등 다양한 산업화가 이루어지고 있다. 그중 주요 활용 분야로는 교육·훈련이 가장 높으며 원전 작업에서 또한 이 기술이 필요로 한다. 본 논문에서는 기존 산업에서의 VR·AR 기술의 활용 분야를 살펴보고 원전 작업에 대한 활용 방안을 제시하고자 한다.

• 한국대기환경학회지
• /
• 제21권2호
• /
• pp.169-178
• /
• 2005

A critical component of air pollution modeling is the representation of atmospheric flow fields within a model domain, since an accurate air quality simulation requires an accurate portrayal of the three-dimensional wind fields. The present study investigated data assimilation using surface observational data in the complex coastal regions to simulate a realistic atmospheric flow fields. Surface observational data were categorized into three groups (Near coastal region, Far coastal region 1, Far costal region 2) by the locations where the sites are. Experiments were designed according to the location of observational stations and MM5/CALPUFF was used. The results of numerical simulation of atmospheric flow fields are used as input data for CALPUFF which predicts dispersion fields of air pollutants. The result of this study indicated that data assimilation using data in the far coastal region 2 provided an attractive method for generating realistic meteorological fields and dispersion fields of air pollutants in Gwangyang area because data in the near coastal region are variable and narrow representation.

• 센서학회지
• /
• 제18권1호
• /
• pp.1-21
• /
• 2009

There have been continued effects to develop various types of chemical sensors according to the demands in many application fields such as safety, pollution, environment, medical engineering and food industries etc. In this review, the author intended to cover the general aspects of chemical sensors, including the history of the development, the classification, the sensing properties, and the types and application examples. And the future outlook of the chemical sensor technology, focusing on the advanced materials, high technology fusion, miniaturized intelligent system and ubiquitous sensor networks etc., has been described.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 2002년도 ICCAS
• /
• pp.89.5-89
• /
• 2002

The technology to predict new chemical compounds by using properties of already known compounds is a kind of data mining and an important technology in chemical industrial fields. Many knowledge have been accumulated in the fields, and especially nowadays in the field of medicine development industry, the technology is connected with the post genome technology, and generates a new conception, physiome. The word is defined as followings. It is the quantitative and integrated description of the functional behavior of the physiological state of an individual or species. The physiome describes the physiological of the normal intact organism and is built on information and structure, that is geno...

• 정보관리연구
• /
• 제42권2호
• /
• pp.151-165
• /
• 2011

특허정보는 산업 및 과학기술활동의 혁신지수로서 국가, 지역, 기술, 기업 등 발명의 성과를 반영하고, 기술의 확산 및 R&D의 성과를 측정하는 도구로서 활용가능하다. 본 연구에서는 특허분석을 통하여 기술생산성, 혁신성 및 기술활동성을 분석할 수 있는 지수를 발굴하여 기술성을 평가할 수 있는 방법을 제시하고, 국가적으로 핵심기술로 관심이 모아지고 있는 의약, 운수, 바이오, 섬유, 건설, 기계부품, 정보매체, 전자/통신 산업에 대해 적용하여 기술성을 평가하였다. 기술활동성에 있어서 삶의 질과 생명연장에 대한 관심이 늘어나는 추세를 반영하여 건설, 의약 바이오분야에서 활발한 기술활동이 이루어진 반면에 섬유와 정보매체 분야의 기술활동은 떨어진 것으로 분석되었다. 의약, 바이오, 건설분야가 평균보다 높은 혁신성을 나타내고 있으며, 정보매체 및 전자통신분야의 혁신성이 떨어지는 것으로 분석되었다. 기술생산성에 있어서 특허기술 1건당 발명자가 약 2인 정도로 나타났으며, 최근 들어 기술의 고도화로 인해 기술 개발에 참여하는 연구원의 수가 늘어나면서 기술생산성이 떨어지는 것으로 분석되었다.

• Journal of Welding and Joining
• /
• 제32권5호
• /
• pp.32-43
• /
• 2014

Welding and joining technology has become a core field. Therefore it is more widely applied to nonferrous metals, inorganic and polymeric materials. That is because the high performance, high function and diversification trend of materials used as industrial technology develops. In the laser welding process, STS 304 and SCP1-S were used as the base materials, the output density was fixed $7MW/cm^2$, the protective gas was argon(Ar) and the transfer rate was fixed 5 mm/sec. and it was progressed while the magnetic field is gradually increasing by 100 mT ranging 0 to 400 mT. The tensile test showed in average about 6 % tensile strength improvement in the case of the laser welding process using the magnetic fields. In the shielded metal arc welding process using SPHC only or the combination of SPHC+STS304 as base materials. The electric current was set at 80 Amperes and the protective gas used argon(Ar) the same as the laser welding process and the strength of magnetic fields. In the shielded metal arc welding process using the magnetic fields, the tensile tests showed about 5 % tensile strength improvement in the case of using SPHC only, 3 % tensile strength improvement in the case of using the combination of SPHC+ STS304. In comparing the results of numerical analysis to the results of experimental tests, it was revealed that the temperature, thermal stress distribution and the behavior of molten pool were similar to those of real tests. Consequently, it may be considered that the numerical assumption and the analytical model used in this study were reasonable.

• 대한수학회지
• /
• 제42권2호
• /
• pp.203-222
• /
• 2005

Thompson series is a Hauptmodul for a genus zero group which lies between $\Gamma$o(N) and its normalizer in PSL2(R) ([1]). We construct explicit ring class fields over an imaginary quadratic field K from the Thompson series $T_g$($\alpha$) (Theorem 4), which would be an extension of [3], Theorem 3.7.5 (2) by using the Shimura theory and the standard results of complex multiplication. Also we construct various class fields over K, over a CM-field K (${\zeta}N + {\zeta}_N^{-1}$), and over a field K (${\zeta}N$). Furthermore, we find an explicit formula for the conjugates of Tg ($\alpha$) to calculate its minimal polynomial where $\alpha$ (${\in}{\eta}$) is the quotient of a basis of an integral ideal in K.

• International Journal of Precision Engineering and Manufacturing
• /
• 제9권3호
• /
• pp.85-91
• /
• 2008

Robot technology is a remarkably interdisciplinary research area, one that can be employed in various industrial fields as well as higher value-added fields. The construction industry, on the other hand, has been known as one of the most difficult research fields to apply robotic schemes. Therefore, applying robot technologies in the construction industry is quite a challenging topic. This paper aims to introduce the progress of automated robotic systems in construction fields, namely with respect to construction robots. While construction robots have a very wide range of application depending on the huge market size of the construction industry, there still exist a lot of problems such as highly risky working environment and inefficiency due to the labor intensive characteristic. In order to solve these problems, a variety of construction robots have been developed and, in this paper, the current state of the robotic systems for construction works and the vision of future robot technology in the construction field are introduced.