• Title/Summary/Keyword: engineering works

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A Study on a Motion Recognition from Moving Images with Camera Works

  • Murakami, Shin-ichi;Tomohiko-Shindoh
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 1998.06b
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    • pp.35-40
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    • 1998
  • This paper describes an automatic recognition method of contents in moving images. The recognition process is carried out by the following two steps. At first, camera works in moving images are analyzed and moving objects are extracted from the moving images. Next, the motion of the object is recognized by pre-procured knowledge. These techniques will be applied to a construction of an efficient image database.

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Case Studies: Schedule Delay Factors and Delay Prevention Program for Concrete Frame Works in Apartment Construction Project (사례분석을 통한 아파트 골조공사의 공기지연 요인 도출 및 개선방안)

  • Cho, Tae-Jea;Choi, Jong-Soo
    • Journal of the Korea Institute of Building Construction
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    • v.11 no.1
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    • pp.9-17
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    • 2011
  • Project delay is one of the most crucial impact factors in the construction process from a schedule and cost management perspective. This study focused on analyzing the causes of concrete frame work delay in the apartment construction project. According to the analysis of project cost composition, the direct cost of concrete works was highest in most samples. Actual delays of concrete works were analyzed for the six different construction components. Causes of delay were grouped into two categories; preconstruction and construction phases and these two groups were further divided into sub-groups. Analysis results revealed that the most significant delay was occurred in the 1st. floor concrete skeleton work. For each delay factor, implications of delay as well as suggestion(s) for reducing the possibility of schedule delay are provided.

A Research to support Real-time of TAO on VxWorks Real-time Operating System (실시간 운영체제 VxWorks 상에서 통신 미들웨어 TAO의 실시간성 지원에 대한 연구)

  • Lim, jae-seok;Son, jae-yeol;Lee, yong-tae;Lee, cheol-hoon
    • Proceedings of the Korea Contents Association Conference
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    • 2009.05a
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    • pp.845-850
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    • 2009
  • To support distributed environment that is independent and standardized between heterogeneous system, a study on the TAO(The ACE ORB) communication middleware based on the RT-CORBA is highly being done. The TAO supports real-time features not on the general purpose operating system like Windows or Linux but on the real time operating system like Vxworks or LynxOS. In this paper, we build and construct environment that supports a thread-level real time feature by porting the TAO on VxWorks target. Also we validate the ported TAO by network communication with the TAO of Windows.

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A Study on the Roadside Slope of the Parkway in Chi-Ri Mountain National Park (智異山 國立公園 道路비탈면에 對한 조사 硏究)

  • Seo, Byung-Soo;Kim, Sei-Cheon;Lee, Chang-Heon;Park, Choung-Min;Lee, Kyu-Wan
    • Journal of the Korean Institute of Landscape Architecture
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    • v.18 no.3 s.39
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    • pp.39-56
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    • 1990
  • The purpose of this study is to analyze the roadside slope of mountainous Parkway. 48 sites were selected by Random Ranking Sampling. This study was researched on the slope condition with the cause of occurrence, the situation of fundamental engineering works and vegetation on slopes. The main results of this research are summarized as follow ; 1. Slope shapes are shown nine types in cut slope and four types in fill slope. 2. Generally, fill slopes are larger than cut slopes in slop area. 3. Grade is more steep than standard grade. 4. Main engineering works, which constructed for slope stability, are terracing, side-ditch wall, channel, concrete trellis works and wire fence. 5. Roundabout channel were many constructed within the sector of Ukmojeong-Deokdong, but were few constructed within the sector of Banseon-Seongsam pass and Cheoneun Temple-Seongsam pass. 6. Most. of side-ditch wall were constructed of concrete and wet-masonry. 7. In vegetation works, many exterior species were selected. 8. Planting pattern was not combinated with the national park landscape.

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SUGGESTING IMPROVEMENT METHODS OF FORM WORK FOR COST REDUCTION IN THE MID-RISE APARTMENT HOUSING

  • Jeongseok Lee;Seunghee Kang;Gunhee Cho;Jeongrak Sohn;Jongdae Bang
    • International conference on construction engineering and project management
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    • 2009.05a
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    • pp.1608-1614
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    • 2009
  • In recent days, the study of urban regeneration has been conducting with purposeful and sincere intent starting out with the residential environment improvement works. Within the range of urban regeneration, the low-cost housing technology means development of totally-integrated housing technology that may be applied to the regeneration project, especially for the rundown areas where infrastructure facilities in the urban zone have been degraded and obsoleted. In line with this, among many and varied methods in order for realization of the low-cost housing as a part of urban regeneration project, this study should like to propose an improvement methods of the key technologies in relation to the construction works by type of work with which construction costs (directing cost) would be reduced. And, in order to elicit the method for element technology that has been developed and improved in the most optimal manner centering on the selected construction work by the type of work, the researcher conducted comparative review of summary of element technologies related to the construction works concerned, characteristics, and construction method thereof. In particular, the researcher investigated the expenses (construction cost and labor cost), constructions (contractibility and productivity), safety, quality of works, and the technical status in environmental aspects, and the researcher also conducted analyses and evaluations thereof.

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A Study on Standard Process of Risk Management for Defense Systems Test Works (무기체계 시험업무에 대한 리스크 관리 표준 프로세스 연구)

  • Taeheum Na;Dongeun Heo;Youngmin Kim;Jooyeoun Lee
    • Journal of the Korea Institute of Military Science and Technology
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    • v.27 no.3
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    • pp.364-374
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    • 2024
  • Today, risks created by uncertainty must be managed for successful project execution. From this perspective, applying a risk management process is very important for successful defense systems test works. This paper describes 'the implentation of risk management process for test work' carried out by DTERI's process improvement activities. In this study, the concept of risk management process, and details of the risk management process are examined through PMBOK and ISO/IEC/IEEE 15288, CMMI. After that, we defined 'Standard Process for Risk Management' of defence systems test works. And, we describe 'Risk Management Function' of DTERI's Project Management System(PMS) and the risk management process of DTERI. Finally, the effectiveness of the risk management standard process is verified through quantitative analysis.

Job Stress at the Shipbuilding Industry

  • Lee, Kwan-Suk;Chung, Da-Yeh
    • Journal of the Ergonomics Society of Korea
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    • v.31 no.1
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    • pp.177-183
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    • 2012
  • Objectives: The objectives of this study are to discuss the importance of job stress and to introduce a model of job stress at the shipbuilding industry considering the characteristics of the shipbuilding works. Background: Shipbuilding works consist of grinding, painting, interior works, welding, and assembling and using heavy equipment in narrow space or work at outside or at high and dangerous places. The working environments aggravate the stress to the workers. Methods: Studies of job stress in industries including shipbuilding industries were reviewed and the characteristics of jobs of shipbuilding were analyzed to find causes of job stress. Results: A model was constructed based upon these findings and reviews. Conclusions: Job stress of shipbuilding workers are very high and thus job and working conditions need to be improved to attenuate the level of job stress of shipbuilding workers. Applications: This model can be used to identify the highly stressed workers and sources of stress.

ON SOME FORMULAS FOR THE GENERALIZED APPELL TYPE FUNCTIONS

  • Agarwal, Praveen;Jain, Shilpi;Khan, Mumtaz Ahmad;Nisar, Kottakkaran Sooppy
    • Communications of the Korean Mathematical Society
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    • v.32 no.4
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    • pp.835-850
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    • 2017
  • A remarkably large number of special functions (such as the Gamma and Beta functions, the Gauss hypergeometric function, and so on) have been investigated by many authors. Motivated the works of both works of both Burchnall and Chaundy and Chaundy and very recently, Brychkov and Saad gave interesting generalizations of Appell type functions. In the present sequel to the aforementioned investigations and some of the earlier works listed in the reference, we present some new differential formulas for the generalized Appell's type functions ${\kappa}_i$, $i=1,2,{\ldots},18$ by considering the product of two $_4F_3$ functions.

JV Rock Driving Method (JV 공법)

  • Kim, Kwang-Il;Inoue Hajimu;Toshio Teraoka;Yeo, Byung-Chul
    • Proceedings of the Korean Geotechical Society Conference
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    • 1995.10a
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    • pp.41.1-44
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    • 1995
  • The JV method is an epochal civil engineering style that boasts of significant pile driving power through low-vibration works by ideally combining the high pressure water injected from the water jet cutter and the vibrations combining from the vibratory pile driver extractors. As a result, you are ensured stable and safe pile driving and extraction in bedrocks that were previously impossible with conventional machines and methods. The other advantage is its high performance and a low-pollution characteristis that is ensured by suppressing ground vibrations. This is a very important factor since it often becomes an issue upon civil engineering in the city. With the addition of this method. the range of steel pipe pile, steel sheet pile and other steel pile use has been drastically expanded. Other advantages of this method incldes accurate works, shortening of the construction period and improved work performance. Since the minimun amount of high pressure water is used to drill the ground, it not only loosens the ground, but also cuts the ground at the tip of the pile to improve driving works.

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Interpretation Works and Online Terminology Information System for the Standardization of Smart Grid Terminologies (스마트그리드 용어 표준화를 위한 뜻풀이 작업 및 온라인 용어 정보시스템 개발)

  • Hwang, Humor;Kim, Jung-Hoon
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.62 no.3
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    • pp.293-299
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    • 2013
  • Power system technologies in the area of smart grid are being converged with communication system technologies or information technologies(IT). This interdisciplinary action affects on two parts vigorously so that IT has become a essential part of power industry. But terminologies of two parts are confused and it is necessary that these are standardized to develop the industry. The interpretation works with scientific and technological standard of the smart grid terminologies which are IEC TC 57 glossary and non-glossary terminologies are introduced. Based on the interpretation works of the smart grid terminologies, an online terminology information system for the standardization of smart grid terminologies is proposed. The system provides the capability of collection and delivery of academic society opinions for the selected and interpreted terminologies.