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        검색결과 120

        81.
        2018.12 KCI 등재 서비스 종료(열람 제한)
        본 연구는 게임개발 성과를 효율적으로 향상시키기 위해 게임개발 조직의 특성이 게임성과에 미치는 영향을 살펴보고자 하였다. 게임개발 조직의 특성으로는 게임 프로젝트 관리 특성, PM 특성, 게임개발팀 특성, 조직문화로 구성하여 독립변수로 설정하였으며, 게임성과를 게임프로젝 트 성과와 게임개발 최종성과로 나누어 종속변수로 설정하였다. 분석결과 4가지 게임개발 조직 의 특성이 게임 프로젝트 성과 및 게임개발 최종 성과에 영향을 미치는 요인으로 나타났다. 본 연구를 통해 게임개발팀 내 구성원들의 역량을 제고하기 위해 게임개발에 집중할 수 있는 환경 과 관리자들을 위한 적합한 매니지먼트 교육이 필요함을 시사하였다.
        83.
        2018.10 서비스 종료(열람 제한)
        In this study, hydrological safety assessment on dam facilities was estimated using dam hydrological safety evaluation result and in-depth inspection assessment result and considering climate change scenario. Hydrological safety assessment of the existing dam was performed by calculating the PMP/PMF using the climate change scenario. In this study, it was evaluated hydrological safety assessment of existing dam considering climate change scenario(RCP 8.5).
        84.
        2018.06 KCI 등재 서비스 종료(열람 제한)
        해양대학 학생들은 선원의 훈련, 자격증명 및 당직근무의 기준에 관한 기준협약(The International Convention on Standards of Training, Certification and Watchkeeping for Seafarers, STCW 협약)에 의해 1년 항해실습을 하고 있다. 본 연구는 실습 교육 기간에 대한 효과와 더불어 어떤 교육 내용의 성취도가 향상되었는지, 또한 교육 과정 중 미진한 부분이 무엇인지를 실습 기간별로 분석하였다. 대상은 한국해양대학교 실습선에 승선한 3학년 학생들을 대상으로 하였다. 본 연구의 목적은 항해사 핵심 역량을 기반으로 한 실습 기간별 향상 정도를 조사 분석하여, 학교 실습선 실습 교육의 효율적인 교과 과정 개편에 기초 자료를 제시하는데 있다. 연구결과 기간에 따른 실습교육 효과는 1년간의 실습이 종료되는 시점에서 대부분의 실습생들이 핵심 역량 항목에서 향상 정도가 우수한 것으로 나타났지만 화물관리, 해양환경보호 등과 같은 일부 항목에서는 보통 수준으로 조사되어 실습 교육의 개선이 필요한 것으로 조사되었다.
        85.
        2018.06 KCI 등재 서비스 종료(열람 제한)
        This study focuses on autonomous exploration based on map expansion for an underwater robot equipped with acoustic sonars. Map expansion is applicable to large-area mapping, but it may affect localization accuracy. Thus, as the key contribution of this paper, we propose a method for underwater autonomous exploration wherein the robot determines the trade-off between map expansion ratio and position accuracy, selects which of the two has higher priority, and then moves to a mission step. An occupancy grid map is synthesized by utilizing the measurements of an acoustic range sonar that determines the probability of occupancy. This information is then used to determine a path to the frontier, which becomes the new search point. During area searching and map building, the robot revisits artificial landmarks to improve its position accuracy as based on imaging sonar-based recognition and EKF-SLAM if the position accuracy is above the predetermined threshold. Additionally, real-time experiments were conducted by using an underwater robot, yShark, to validate the proposed method, and the analysis of the results is discussed herein.
        86.
        2017.09 서비스 종료(열람 제한)
        In this study, hydrological safety vulnerability assessment on dam facilities was estimated using dams' hydrological safety evaluation result and in-depth inspection assessment result and considering climate change scenario. Hydrological safety assessment of the existing dam was performed by calculating the pmp/pmf using the climate change scenario. Using the results, Multi-Criteria Decision Making was used for vulnerability ranking decision on dams, and assessment scores and weights of hydrological safety evaluation considering climate chage were applied as payoff matrix and weight coefficient. In this study, it was evaluated vulnerability ranking that hydrological safety evaluation of existing dam considering climate change.
        87.
        2017.07 KCI 등재 서비스 종료(열람 제한)
        Purpose – It is necessary to identify the level of marketing activities of the businesses that are recognized and carried out by the small and midsize businesses that have been supported by the government's small-business policy Research design, data, and methodology – The method of data analysis of this study was conducted by the researcher 's acquaintances and center staffs who visited small business owners in a small - scale company operating a business. Results – It is found that the financial support part of the support programs for the small business owners is not related to the center affection among the support programs for the small business owners of the government. This is a fact-finding process that can be regarded as a forming process that has a significant effect on. As a result of the analysis, both marketing activity and center attachment were found to be possible parameters which have significant influence on business performance. Conclusions – Developing a variety of contact and customer management programs with small business owners in the field has enabled the government's policies to effectively penetrate the site, and these efforts eventually resulted in more business results for small business owners.
        88.
        2017.02 KCI 등재 서비스 종료(열람 제한)
        This paper proposes combination of a cognitive agent architecture named Soar (State, operator, and result) and ROS (Robot Operating System), which can be a basic framework for a robot agent to interact and cope with its environment more intelligently and appropriately. The proposed Soar-ROS human-robot interaction (HRI) agent understands a set of human’s commands by voice recognition and chooses to properly react to the command according to the symbol detected by image recognition, implemented on a humanoid robot. The robotic agent is allowed to refuse to follow an inappropriate command like “go” after it has seen the symbol ‘X’ which represents that an abnormal or immoral situation has occurred. This simple but meaningful HRI task is successfully experimented on the proposed Soar-ROS platform with a small humanoid robot, which implies that extending the present hybrid platform to artificial moral agent is possible.
        89.
        2016.06 KCI 등재 서비스 종료(열람 제한)
        Rebound hammer test, SonReb method and concrete core test are most useful testing methods for estimate the concrete compressive strength of deteriorated concrete structures. But the accuracy of the NDE results on the existing structures could be reduced by the effects of the uncertainty of nondestructive test methods, material effects by aging and carbonation, and mechanical damage by drilling of core. In this study, empirical procedure for verifying the in-situ compressive strength of concrete is suggested through the probabilistic analysis on the 268 data of rebound and ultra-pulse velocity and core strengths obtained from 106 bridges. To enhance the accuracy of predicted concrete strength, the coefficients of core strength, and surface hardness caused by ageing or carbonation was adopted. From the results, the proposed equation by KISTEC and the estimation procedures proposed by authors is reliable than previously suggested equation and correction coefficient.
        90.
        2016.04 서비스 종료(열람 제한)
        This paper is presented in progressive improvement of the construction and maintenance for corrugated steel plate culverts in Korea expressway. After reviewing the technical consulting reports and field surveying this whole structures. It is effectively help to minimize damage and improve the stability of structures.
        91.
        2016.04 서비스 종료(열람 제한)
        Improved measurement and structural modeling analysis of result, an improved method is very efficient. The difference of about 10~15% comes out, Improved measurement and structural modeling analysis of result, it is determined that the need for additional research, such as a change of the modeling subdivision, load contions.
        92.
        2016.04 서비스 종료(열람 제한)
        In this study, repair and reinforcement priority determining method for each component of existing dams is suggested. Condition assessment results from in-depth inspection followed by “specific guide for in-depth inspection on dams” are used. Condition assessment is subdivided into several steps and evaluation indices are determined by considering weights such as influence coefficients and adjustment factors for each component through all of the steps. These weights are counted backward to determine the priority for each component and facility. An algorithm is designed to analyze this procedure and 4 target dams are adopted to verify the method. This method can be used for establishing an efficient maintenance strategy related to the repair and reinforcement priority determination.
        93.
        2015.10 서비스 종료(열람 제한)
        In this study, hydrological safety vulnerability assessment on dam facilities was estimated using dams' hydrological safety evaluation result and in-depth inspection assessment score and grade. Multi Criteria Decision Making was used for vulnerability ranking decision on dams', and assessment scores and weights of hydrological safety evaluation were applied as payoff matrix and weight coefficient. It can be available for calculating dam’s vulnerability ranking considered dams' hydrological safety.
        94.
        2015.07 KCI 등재 서비스 종료(열람 제한)
        이 연구의 목적은 우리나라의 PISA 2012 과학 평가 결과를 우리나라와 과학 성취 정도가 유사한 일본과 핀란드와 비교해 봄으로써 우리나라 과학교육에 대한 시사점을 얻는 데 있다. OECD PISA 홈페이지에 수록된 PISA 2012 원자료를 사용하여 국가 전체 학생뿐만 아니라 과학 성취 상위 10% 학생 및 과학 성취수준 5수준 이상인 학생을 대상으로 우리나라와 일본, 우리나라와 핀란드 사이의 과학 평가틀의 하위영역별, 그리고 문제유형별 평균 정답률 차이에 대한 t 검증 및 효과크기 비교를 실시하였다. 전체 학생을 대상으로 하였을 때 ‘폐쇄형 구성형’ 문항유형을 제외한 우리나라의 대부분의 하위영역별 또는 문항유형별 평균 정답률이 두 나라에 비해 낮았으며, 특히 ‘개방형 구성형’ 문항유형의 정답률이 크게 낮았다. 더욱이 이러한 차이는 과학 성취수준이 높은 집단에서 심화되었다. 이에 대한 개선을 위해 과학 탐구 능력이나 사고력을 향상시킬 수 있는 교수·학습 및 평가 방법에 대한 노력과 과학 글쓰기와 토론에 관련된 활동을 통한 자신의 생각을 충분히 표현할 수 있도록 하는 교육이 필요함을 제안하였다.
        95.
        2015.06 KCI 등재 서비스 종료(열람 제한)
        본 논문에서는 망각곡선을 응용한 반복학습시기 설정 및 학습자 수준과 단어 난이도 자동계산 방법이 적용된 영어단어 암기시스템을 소개한다. 우리 시스템은 망각곡선을 사용해서 학습자의 단어암기 횟수에 따라 적절한 반복 주기를 정하고 그 시기에 복습을 요구한다. 학습자가 알고 있는 단어들에 대한 복습시간을 없애고 잊어버릴 확률이 가장 높은 단어들을 우선 적으로 복습하는 것으로 시간을 절약 할 수 있는 것이다. 또 수준에 맞는 난이도의 단어들을 제공함으로써 학습 흥미와 성취도 유지에 기여할 수 있다. 학습자의 수준을 고려하지 않은 난이도의 단어를 무작위로 제공하거나 이미 다른 사람들의 평가에 맞춰진 난이도의 단어들을 제공하는 기존의 시스템과 차별되도록 학습자와 단어 난이도 설정에 온라인 체스게임 랭킹시스템에서 사용하고 있는 "Glicko" 시스템을 적용시켰다. 플레이어간의 대결을 통해서 서로의 실력이 결정되고 매칭되는 이 시스템을 우리는 단어와 사람간의 대결로 시스템에 적용하였다. 그것으로 인해 학습하는 사람의 수준과 단어들의 난이도가 실시간으로 측정되고 학습과정에 반영이 된다. 이 외에 부가적으로 분산학습, 시험형식의 문제풀이의 즉각적인 피드백을 활용하여 영어 단어 암기의 효율성을 극대화 한다.
        96.
        2015.04 서비스 종료(열람 제한)
        In this study, repair and reinforcement priority of dam facilities was estimated using dam in-depth inspection assessment score and grade. Multi-Criteria Decision Making was used for decision of priority, and assessment scores and weights of individual facilities were applied as payoff matrix and weight coefficient. The results show that different analysis results can be deducted by various MCDM method even if assessment index and weight coefficient are the same.
        97.
        2015.04 서비스 종료(열람 제한)
        the government and the National Assembly of the Republic of Korea enacted and proclaimed the 'Special Act on the Safety Control of Public Structures' (hereinafter referred to as the 'Special Act') through the legislation process by Assembly members on January 5, 1995, in order to prevent disasters and calamities through facility safety inspections and proper maintenance. But nevertheless the result of the 'Special Act on the Safety Control of Public Structures' clearly exist, methodical analysis and effect of 'Special Act on the Safety Control of Public Structures' have not proposed since last 20 years. So question about the infrastructure of safety is brought up consistently. After that, the government has been creating new trends of facility maintenance since it deeply realized the significance of systematic inspection and maintenance of major public structures.
        98.
        2015.04 서비스 종료(열람 제한)
        In this study, periodical configuration survey is carried out on the subject of the suspension bridge in service. Its reliability and structural modeling validity are performed by comparison and analysis of interpretation value through the structural analysis.
        99.
        2015.04 서비스 종료(열람 제한)
        Infrastructure deterioration is becoming a major problem in Korea. For the purpose of establishing quantitative grounds to distribute government annual budget effectively in the area of infra structure maintenance. This study has performed a senior-engineer-oriented question investigation. This results can be used as a base data for the project that developing performance-based evaluation techniques for SOC structures.
        100.
        2014.10 서비스 종료(열람 제한)
        In this study, a new type of the embedded column connection was proposed, and its flexural behavior was evaluated through a series of experimental study. Four full scale specimens for the proposed connections were constructed and tested. From the results, it was found that the flexural stiffness of the proposed connection was higher than that of the semi-rigid connection for all test specimens, and 200mm of embedment length was proper for the given test specimens in this study.
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