• Journal of the Ergonomics Society of Korea
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• v.35 no.3
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• pp.185-191
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• 2016

• Proceedings of the Korea Water Resources Association Conference
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• 2005.09a
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• pp.532-533
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• 2005

• Journal of Industrial Convergence
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• v.20 no.11
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• pp.113-126
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• 2022

In Small and Medium-sized Enterprises(SMEs) compared to major, competence of CEO relatively has a large impact on management performance, so the biggest factor to strengthen the competitiveness is the competence of CEO. Meanwhile, a consultant is defined as a subject of execution that directly and indirectly participates in management by inducing objective and rational decision-making on various management issues and problems facing companies. The management expertise, problem-solving skills, communication skills, insights, and leadership that a consultant must have in order to perform his or her duties are the same as the role and capabilities that the CEO must have in enhancing the company's performance and competitiveness. Therefore, through previous studies, this study divided consultant competences of CEO into job competence, communication competence, learning competence, and innovation competence and tried to understand whether those competences affect corporate's innovation performance and management performance. The survey was conducted on SMEs and the analysis techniques were reliability and validity analysis, confirmatory factor analysis, and structural equation analysis. As a result, it was found that the CEO's job competence, communication competence, learning competence, and innovation competence had a significant effect on innovation performance of the company, and second, innovation performance had a significant effect on the management performance. Through, this study derived a common factor of consultant competences of SMEs CEO, and derived implications for the competence characteristics of the CEO necessary to improve the performance of SMEs.

• Proceedings of the Korean Geotechical Society Conference
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• 2006.03a
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• pp.949-959
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• 2006

Despite of the popularity of using empirical methods for support design, empirical rules suffer from the inherent problem of providing no indication of the safety degree of the design. For the support design of large span tunnel, it was considered that the empirical design guidelines should be augmented by more explicit design methods. This paper presents an overview of the analytical support design methodology that is used to refine initial empirical recommendations. The initial support design supplemented by analytical methods is validated by probabilistic and deterministic approach applied to stress-induced and structurally controlled gravity-driven instability problem each. As a result, the extent of the potential failure zone is sorted out and numerical parametric studies were performed to gain insight into the overall behavior of tunnel in the potential failure zone. Concequently, it was decided that additional conservation techniques have to be planed as a reserved support pattern.

• Proceedings of the Korean Geotechical Society Conference
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• 2004.03b
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• pp.815-822
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• 2004

A knowledge of in situ stress state is important to design various engineering structures such as dams, tunnels and so on. There are about three wellknown indicators that is, borehole will breakouts, hydraulic fracturing, ellipsoidal cross section of borehole that have been attributed to the state of stress in the vicinity of borehole. Fortunately, Televiewer traveltime image can be used as a caliper log with 144 or 288 arms, which allows to determine the borehole shape. Televiewer amplitude image will give detailed information about the distribution and character of breakouts and hydraulic fracturing as well. For investigation purposes, a series of boreholes(total 195 boreholes: 12.239m) that have been logged all over the country during past 10 years are analyzed. The primary objective of this paper are to examnine the ability of a Televiewer to determine the shape of borehole, to present data inferred by stress indicators, to indicate their possible relationship with the anisotropic horizontal stresses. It is shown that in most cases the fracture orientation statistically estimated from observed fractures denotes an excellent correlation with the orientations inferred by stress indicators. Many intervals of breakouts are terminated at the intersection of oblique fracture with the borehole. The results from Televiewer data are further compared with those of hydraulic fracturing techniques.

• Journal of Industrial Convergence
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• v.20 no.8
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• pp.15-23
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• 2022

This thesis investigated and studied the effect of CEO's values, consultant's competency, and value alignment with workers on the success and performance of strategic consulting. With 180 copies of data from the questionnaire, factor analysis, reliability and validity analysis were performed, and structural equations for the final research model were performed. As a result of the analysis, it was found that innovation performance and management capability had a significant effect on value consistency. It was confirmed that the value consistency had a significant effect on the degree of completion and utilization, and the degree of completion and utilization had a significant effect on satisfaction and contribution to management performance.

• Proceedings of the Korean Geotechical Society Conference
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• 2009.09a
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• pp.605-621
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• 2009

대심도 암반을 굴착함에 따라 암석강도 및 암반응력 등의 특성에 따라 Rockburst 등과 같은 취성파괴 및 Squeezing 등과 거동을 나타낼 수 있으며, 이러한 대심도 암반거동은 터널 및 지하 공동 시공중 위험요소로 작용하여 안정성에 심각한 영향을 줄 수 있다. 따라서 대심도 암반구간에 터널을 건설하는 경우에는 합리적인 설계 및 시공을 달성하기 위해서는 대심도 암반에 대한 지질 및 암반특성을 정확히 이해하는 것이 필요하며, 대심도 암반특성에 적합한 보강 및 시공대책을 수립하도록 하여야 한다. 본 고에서는 대심도 암반구간에서의 위험도 평가 및 터널 설계사례를 검토하여, 대심도 암반특성을 고려한 터널구조물 설계시 합리적인 방안을 도출하고자 하였다.

• Proceedings of the KIEE Conference
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• 2005.07e
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• pp.19-21
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• 2005

The purpose of power system design is, in a word, to provide a good quality of electric power. The design of reliable industrial and commercial power distribution system is important because of the high costs associated with power outage. Three major factors for realization of the purpose are: (1) To hold system frequency at or very close to a specified nominal value(e.g. 60Hz) by control of frequency-effective power. (2) To maintain the correct value of interchange power between power and local generators. (3) To hold system voltage at or very close to a specified nominal value by control of voltage-reactive power. Within the past decade, numbers of industrial and commercial facilities installed with local generation, large motors or both, are increasing. This means that system stability is of concern to a growing number of industrial plant electrical engineers and consultants.

• International conference on construction engineering and project management
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• 2015.10a
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• pp.268-270
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• 2015

Overseas countries' government and facility management industries make efforts to ensure precise and fluent data from building information modeling (BIM). In facility management, a large amount of data and information are necessary to continue the process activities. Facility condition assessment, which is performed to make budget plan for the maintenance and operation requires the related facilities' documentation and information. However, it depends on the owner and the user of the facility to provide accurate and complete information to consultant. The problems as follows: (1) owner and user should provide documents and information, and (2) the consultant cannot verify the provided information. To solve these problems, we suggest a methodology to produce the information for FCA through BIM. First, all of the essential documentation and assessment elements are listed. Next, the documents and elements are separated out, whether they are able to be extracted from BIM or not. Then, the list indicates only the data that is linked with BIM. The suggestion is expected to provide the required information through the connection to BIM with accuracy and completeness and to present another BIM application use for facility management.

• Journal of the Korean Recycled Construction Resources Institute
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• v.1 no.2
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• pp.120-127
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• 2013

Vam Cong Cable Stayed Bridge which has 450m main span length is one of the Central Mekong Delta Region Connectivity Project and is located in Cuu Long Delta Region. It has steel-concrete composite girder with 4 lane and the type of cable is multi strand cable. The improved H-shape pylon and cast-in-place bored piles were applied. High strength concrete is applied for pylon, precast concrete slab and Cast-in-Situ concrete pile to ensure the structural safety. The present paper describe the design specifications and main features of Vam Cong Cable Stayed Bridge design.