• Journal of the Korea institute for structural maintenance and inspection
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• v.23 no.7
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• pp.80-86
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• 2019

As computer performance improves, research using deep learning are being actively carried out in various fields. Recently, deep learning technology has been applying to the safety evaluation for structures. In particular, the internal blades of a turbine structure requires experienced experts and considerable time to detect surface damages because of the difficulty of separation of the blades from the structure and the dark environmental condition. This study proposes a Faster R-CNN deep learning model that can detect surface damages on the internal blades, which is one of the primary elements of the turbine structure. The deep learning model was trained using image data with dent and punch damages. The image data was also expanded using image filtering and image data generator techniques. As a result, the deep learning model showed 96.1% accuracy, 95.3% recall, and 96% precision. The value of the recall means that the proposed deep learning model could not detect the blade damages for 4.7%. The performance of the proposed damage detection system can be further improved by collecting and extending damage images in various environments, and finally it can be applicable for turbine engine maintenance.

• Economic and Environmental Geology
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• v.50 no.2
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• pp.145-157
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• 2017

Because of Recent intensive rainfall, nationally landslides and slope failure phenomenon has been frequently occur. Providing proposed-measures to the natural disasters that occur in these localities and the slope, must be derived ground of strength parameters(shear strength) as a design input data. However, it is such as extra deforestation and a lot of economic costs in order to make the access to the current area and the slopes ground survey is required. Thus, by small dynamic cone penetration test machine using the human to carry in the field, it is possible to easily measure the characteristics and strength constant of the ground of more than one region. In this study through researching analysis of the domestic and foreign small dynamic cone penetration test method, it has proposed a cone material and test methods suitable for the country. Cone penetration test Nc in the field has comparated with analysis of the value and the standard penetration test N value. And, in addition to this, direct shear test and borehole shear test were performed by depth, bedrock, and soil type and passing #200 and the correlation of the Nc value. In particular, in the present study, for the sandy soil that has distict distribute in mountain, it is proposed relation of shear strength corresponding to the Nc value (cohesion and internal friction angle) in order to calculate such effective ground shear strength.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.7
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• pp.499-509
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• 2016

The number of female government employees is increasing steadily; therefore, the importance of their effective management is also increasing. Recently, female government employees have organized and exploited their social networks to achieve career success. To obtain a better understanding of the consequences of social networking and its impact on female government employees, 262 female employees were asked to provide details about their experiences and attitudes regarding networking behavior (internal and external networking) and how they influenced affective commitment and individual adaptation performance. The results confirmed that social networking significantly increases emotional sharing, and leads to high levels of affective commitment and individual adaptation performance. The moderating roles that positive psychological capital play in the relationships between social networking (internal and external) and emotional sharing were also investigated. The results confirmed that positive psychological capital enhances the impact internal social networking has on affective commitment and individual adaptation performance. Managerial implications for developing effective female employee management strategies were provided for government managers. Based on these results, the theoretical and practical implications of the research findings are discussed, and recommendations for future research are provided.

• Journal of The Korean Association For Science Education
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• v.24 no.6
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• pp.1131-1142
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• 2004

This study investigated the factors affecting the procedures of becoming a scientist. Interview was used as a research method for deep understanding of individual career choice procedures. Interviews for individual scientists were conducted for about 60 minutes in their offices and all the interviews were tape-recorded. A total of 34 scientists who received some representative science awards in Korea during 1990 - 2001 were sampled. They were all men. But the interview was conducted with 30 scientists. The investigation was based on the framework that was composed of the following four categories: personal ability, home environment, school environment, and sociocultural environment. And each category had several factors as follows: personal ability consisted of the meta-ability to figure out the aptitude and the self-ability and the achievement; home environment consisted of parents, brothers and sisters, relatives, and hobby; school environment consisted of teachers, friends, club activity; sociocultural environment consisted of event, mass media, social recognition and social prospect. From the analysis of the career choice procedure of the scientists it was appeared that the meta-ability for personal ability, the parental influence particularly by father for home environment, science teacher and professor for school environment, and social prospect for sociocultural environment were important. In conclusion, most of the scientists made an important decision for their future career when they were the 12th grade and 1st year in university, and they considered intrinsic factor such as self-interest and aptitude and extrinsic factor such as social prospect. However intrinsic factor related to science teacher and professor and extrinsic factor related to fathers' advice.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.6
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• pp.1137-1146
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• 2006

Under this economic circumstance, the logistics firms located in port take better advantages than those in other areas. This study observed those firms with consciousness to which matters were affected a growth of the logistics IT firms. This study considered in terms of three factors which are an economic factor, a political factor and an internal-ability factor for the matters of logistics IT firms' success through the factor analysis. According to the factor analysis, subjective factor showed positive: (1) expanding market through the ideas and abilities, (2) internal relations and government support (3) capability of market identification and focusing on regional industrialization. As a result of the internal ability analysis, there were three positive matters such as (1) a factor of organization or human resource management, (2) relationship with consumer and resource and management ability for strategy, and (3) developing unique product, networking, suitable goods of regional industrialization. The external factor, through the factor analysis was trued out (1) a emerged political factor such as a support up venture, cluster composition, investing R&D and specialist training, (2) economic factor such as tax reduction, financial support, marketing collaboration renting office in a low price by regional government.

• Korean Journal of Construction Engineering and Management
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• v.23 no.5
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• pp.87-97
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• 2022

Although the use of BIM in architectural projects has increased, repetitive modeling tasks and frequent design errors remain as obstacles to the practical application of BIM. In particular, interior finishing elements include the most varied and detailed requirements, and thus requires improving its modelling efficiency and resolving potential design errors. Recently, visual programming-based modules has gained traction as a way to automate a series of repetitive modeling tasks. However, existing approaches do not adequately reflect the practical modeling needs and focus only on replacing siimple, repetitive tasks. This study developed and evaluated the performance of three modules for automatic detailing of walls, floors and ceilings. The three elements were selected by analyzing the man-hours and the number of errors that typically occur when detailing BIM models. The modules were then applied to automatically detail a sample commercial facility BIM model. Results showed that the implementations met the practical modeling requirements identified by actual modelers of an construction management firm.

• The Journal of the Korea Contents Association
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• v.22 no.5
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• pp.214-222
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• 2022

It is important to realize employment equality to fulfill corporate social responsibility. The most suitable indicator for assessing its performance is the gender wage gap. Korea is considered the country with the most severe gender wage gap among OECD member countries, however, studies on the gender wage gap have been mainly attempted to explain in terms of the structure of the labor market, government policies, etc. This study focus on the characteristics of CEO and HR systems among the characteristics of organizations affecting the gender wage gap. The management philosophy sets the direction of organizational decision-making and activates the system. In addition, the HR system enables fair and objective organizational management for members through rules and procedures. However, even in organizations seeking rationalization, minority people may experience discrimination. Moreover, the rational HR system may act as a mechanism to justify discrimination, contrary to existing intentions. This study proposes that in order for the rational HR system to work positively, it must be based on the management philosophy. In other words, it is intended to derive a mechanism that can alleviate the gender wage gap from the integrated perspective of the characteristics of the CEO and the rational HR system. In particular, it aims to provide specific implications for how the organization should operate the HR system by examining the gender wage gap based on internal factors of companies that utilize manpower.

• Journal of the Korea Institute of Building Construction
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• v.9 no.5
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• pp.163-172
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• 2009

As customers are becoming increasingly important in corporate management, there is a growing demand for migration to customer-focused organizational structures. Unlike the manufacturing industry, the construction industry is non-iterative and non-standardized. As a result, a wide variety of materials, human resources, technologies and equipment must be mobilized in complex work activities to complete a structure. Consequently, surprises are bound to occur as such work activities progress. This paper intends to study a strategy that is designed to improve customer services for apartment building units. It aims primarily to focus on cost control and brand management. Housing tenants and industry experts are surveyed to collect input for issue analysis. In addition, the external circumstances and internal capabilities of major builders in Korea are analyzed, and a SWOT analysis is performed regarding market conditions related to customer service. These analysis results are utilized to develop a strategy implementation plan over different time frames, and the operational resources available for such strategy implementation are analyzed in order to forecast its performance. This research will facilitate communication between construction companies in Korea and their customers by proposing a customer service improvement strategy for apartment building units, and is expected to provide resource material for a strategic analysis of efforts to fully incorporate customer requirements

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.529-532
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• 2006

과학기술 연구자들의 협업을 지원하기 위해서 정보 자원 공유에 기반한 정보 유통 체제가 필요하나 현재 정보 유통 체제에서는 서로 이질적인 형태로 정보가 표현되어 있기 때문에 정보 공유의 기술적 한계를 갖고 있다. 그리고 대량의 정보 속에서 사용자가 원하는 정보를 선별하여 제공하기 위해서는 새로운 정보 유통 플랫폼이 필요하다. 본 논문에서는 지식 기반 정보 유통 플랫폼 상에서 이용되는 국가과학기술 R&D 기반정보를 지식화하기 위해 국가과학기술 R&D 기반정보 온톨로지를 구축하여 이용함으로써 각 기관별로 관리하고 있는 인력, 성과물 등의 과학기술 R&D 기반 정보의 표준화된 지식관리 체계로 이용할 수 있다. 우리는 국가과학기술 R&D 기반정보 온톨로지를 구축하기 위하여 한국과학기술정보연구원(KSITI) 내부 성과물 정보의 실제 데이터들을 이용하여 온톨로지의 Individuals를 생성하였다. 정보 유통 플랫폼에서 온톨로지 형태로 구축된 지식을 이용하면 과학기술 R&D 기반정보에 대한 효율적인 관리가 가능하고, 정형화된 형태의 지식으로 개념화했기 때문에 지식 데이터의 공유와 재사용이 가능하다. 또한 단순 질의 검색이 아닌 의미 기반 추론을 이용한 지식 검색이 가능해지는 장점을 가진다. 우리가 구축한 국가 과학기술 R&D 기반정보 온톨로지를 이용하여 정보유통플랫폼(OntoFrame-K)에서 연구자 네트워크, 연구자 추적, 연구맵의 추론 서비스를 제공한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2001.10b
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• pp.1589-1592
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• 2001

일반적으로 아웃소싱은 비용절감이나, 경쟁력 확보를 목적으로 기업 외부에서 필요한 자원, 기술력 및 해결방안 등을 찾는 경영기법으로, 단순용역업무에서부터 기업의 핵심기능인 IT 분야에 이르기까지 폭 넓게 활용되고 있다. 특히 IT 아웃소싱은 일상적인 정보시스템의 운영 및 개선, 네트워크 운영 및 어플리케이션의 유지/개선 등을 외부의 전문가에게 맡겨 점진적인 서비스 수준의 향상과 비용의 절감을 유도하고, 내부자원은 핵심역량에 집중시켜, 기업의 경쟁력을 높이는 하나의 경영수단으로 각광 받고 있다. 본 논문에서는 실제 통신서비스업체의 IT분야를 아웃소싱한 사례 연구를 통해서 IT 아웃소싱의 추진 시 필요한 제반사항과 절차, 추진배경등을 알아보고, 아웃소싱 성과를 결정하는 중요 요소인 서비스 성과측정 모델에 대해 연구하였다. '90 년대 후반 통신시장개방, 본격적인 경쟁체제 돌입등 핵심역량강화 차원에서 시작된 아웃소싱은 통신업체 국내최초의 사례로 처음부터 예상치못했던 어려움과 추진과정에서의 시행착오도 많이 겪었다. 또한, 선진외국사례의 아웃소싱 계약사례 및 서비스수준을 평가하기위한 서비스 수준 약정서등 국내 통신업체 환경에 맞게 잘 짤여지도록 수많은 검토와 사례 연구를 통해 계약을 체결할 수 있었으며, 아웃소싱이후 예상되었던 많은 문제점들을 해결하기위해 아웃소싱 인력들의 의욕수준을 높이기위한 직무 재교육, Incentive 제도 도입, 서비스와 관련된 제반 프로세스 재정립 등을 통하여 소기의 성과를 이룩할 수 있었다. 특히, 통신업체 IT 아웃소싱의 성공요인은 계약적 구조적 측면에 해당하는 적정한 서비스의 평가와 이에 상응하는 대가의 지급방안에 대한 것이고 양 사가 만족할 만한 성과를 내가 위해서는 수직적관계가 아니라 제휴관계로서의 Relationship 을 유지할 수 있도록 이 두가지 모두를 고려 해야만 성공적인 아웃소싱 추진에 한걸음 더 나아갈 것이며, 아울러 향후에도 아직 미흡한 분야인 IT 아웃소싱에서 적정수준의 대가지급 방안 및 바람직한 Relationship 에 영향을 미치는 여러 가지 요인에 대해서도 살펴 봄으로써 IT분야의 Outsourcing을 검토하거나, 추진할 때 도움이 될 수 있도록 하고자 한다.