• Title/Summary/Keyword: fourth-order convergence

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The usage of convergency technology for ROGA algorithm application on step walking of biped robot (이족 로봇의 계단 보행에서 Real-Coded Genetic Algorithm 의 융합 기술의 사용)

  • Lee, Jeong-Ick
    • Journal of the Korea Convergence Society
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    • v.11 no.5
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    • pp.175-182
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    • 2020
  • The calculation of the optimal trajectory of the stepped top-down robot was made using a genetic algorithm and a computational torque controller. First, the total energy efficiency was minimized using the Red-Cold Generic Algorithm (RCGA) consisting of reproductive, cross, and mutation. The reproducibility condition related to the position assembly of the start and end of the stride and the joints, angles, and angular velocities are linear constraints. Next, the unequal constraint accompanies the condition for preventing the collision of the swing leg at the corner with the outer surface of the stairs, the condition of the knee joint for preventing kinematic peculiarity, and the condition of no moment in safety in the traveling direction. Finally, the angular trajectory of each joint is defined by fourth-order polynomial whose coefficient is to approximate chromosomes. This is to approximate walking. In this study, the energy efficiency of the optimal trajectory was analyzed by computer simulation through a biped robot with seven degrees of freedom composed of seven links.

The Analysis of Experts' Perceptions Toward the Talented in Intelligence and Information Society (지능정보 핵심인재상에 대한 전문가 인식 조사)

  • Lee, Jaeho;Shin, Hyunkyung
    • Journal of The Korean Association of Information Education
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    • v.22 no.6
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    • pp.629-638
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    • 2018
  • The purpose of this study is to examine experts' conceptions of the competencies of future talent to live in the fourth industrial revolution. To this end, 144 experts in the education sector conducted conceptions survey on the talented for intelligence and information society. The main findings of the survey by experts are summarized as follows. First, the level of agreement on the competencies of the talented in the intelligence and information society was found in the order of 'creative convergence competencies', 'making competencies', 'character competencies' and 'specialization competencies'. Second, the highest level of agreement on the characteristic factors were found to be 'problem-solving ability' belonging to 'creative convergence competencies'. Finally the highest level of agreement on the characteristic components were found to be 'problem-solving ability' belonging to 'creative convergence competencies'.

A development of creative capstone design process by product and mold design (제품 및 금형 연계 창의 캡스톤 디자인 교육과정에 관한 연구)

  • Kim, Kyung-A;Han, Seong-Ryeol
    • Design & Manufacturing
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    • v.13 no.4
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    • pp.45-50
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    • 2019
  • The fourth industrial revolution calls for an integrated talent by improving working-level skills within the big framework of creativity and convergence. Therefore, university education focuses on solving the problem of practical ability education by improving employment ability. Based on this improvement in practical skills, this study is based on the field-based design curriculum of Capstone. Currently, the Capstone Design Course is being implemented at most universities, extending its scope to the fields of engineering, humanities, social studies and arts. However, there is a limit to the core concept of Capstone design education and capacity education developed in line with the foreign educational environment and applied directly to our nation's university education. In terms of overseas cases, the core focus is to develop practical, design, and prototype capabilities by forming a team among all grades and multidisciplinary institutions to support the capital and manpower of the industry. However, the nation's industrial linkage and curriculum have difficulties in carrying out multi-disciplinary education. In this study, students were asked to team up and solve the challenges that the industry needs based on the expertise acquired in the lower grade curriculum by applying majors and 3D printing through the first and second semester courses of the fourth grade to address these limitations. In addition, business skills for the process of creativity and leadership experience in our country through a suitable design capstone class to review the efficiency of education by applying a model. In order to achieve the purpose of Capstone design subject, the goal setting, class model composition, class model application, verification and evaluation, and final class model development procedures were carried out. Through this process, it will be used as a basic material for educating design class capstone design.

A Study on the Vitalization Way of Gyeonggi Women's Center: Centering on Gyeonggi-do (여성회관의 활성화방안에 관한 연구: 경기도를 중심으로)

  • Jun-Ok Shin
    • Journal of Industrial Convergence
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    • v.20 no.12
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    • pp.155-162
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    • 2022
  • In order to practically activate women's policies, it is necessary above all to develop programs for women's empowerment and to activate women's centers, which serve as a base for promoting women's welfare. To this end, the problems of the Women's Center were considered, and the history, function, and operation aspects of the Gyeonggi Women's Center were analyzed. Looking at the results of the analysis, first, the Gyeonggi Women's Center uses its current functions to spread the awareness of gender equality, and in order to promote women's social activities and welfare, it is necessary to integrate functions and form a network from a paradigm perspective. Second, in order for the Gyeonggi Women's Center to take the lead in the role of an integrated community center, it is necessary to explore the vitalization of city and county networks. Third, the development and support of internal and external resources is necessary to establish women's governance, and the Gyeonggi Women's Center needs to be responsible for the coordinator's role. Fourth, Gyeonggi Women's Center should strive to resolve regional imbalances through close communication with the Gyeonggi Women's Center Council. Based on the results of this analysis, a plan for the Gyeonggi Women's Center was suggested.

The Effect of Leadership Types of Managers Perceived by ICT Organization Members on Leadership Trust and Job Satisfaction

  • Kim, Moon Jun
    • International journal of advanced smart convergence
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    • v.9 no.2
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    • pp.212-223
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    • 2020
  • We study to confirm the relationship between leadership trust and job satisfaction on the leadership style of managers recognized by ICT organization members. To this end, the research hypothesis established by using SPSS23.0 for the survey results of 230 ICT organization members was analyzed as follows. First, the hypothesis 1 person leadership type (individual consideration: H1-1, intellectual stimulation: H1-2, charisma: H1-3, conditional compensation: H1-4, exceptional reward: H1-5) had a significant effect on leader trust. The results were obtained. Second, the hypothesis 2 manager's leadership type (individual consideration: H21-1, intellectual stimulation: H2-2, charisma: H2-3, conditional compensation: 2-4, expected compensation: H2-5) is based on job satisfaction. As a result of verifying the impact relationship, all showed significant effect on job satisfaction. Third, it acted as a positive factor in the job satisfaction of the leader of the hypothesis 3-member organizational member. It was confirmed that the job satisfaction of organizational members started based on the trust of actual leaders. Fourth, the role of leadership trust was partially confirmed between leadership type and job satisfaction. Through this study, in order to improve job satisfaction of ICT organizational members, the importance of exerting competency on the leadership type of managers and trusting the leaders on the characteristics consistent with ICT organizational characteristics was emphasized.

Multilevel approach for the local nanobuckling analysis of CNT-based composites

  • Silvestre, N.;Faria, B.;Duarte, A.
    • Coupled systems mechanics
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    • v.1 no.3
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    • pp.269-283
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    • 2012
  • In the present paper, a multilevel approach for the local nanobuckling analysis of carbon nanotube (CNT) based composite materials is proposed and described. The approach comprises four levels, all of them at nanoscale. The first level aims to propose the potential that describes the interatomic forces between carbon atoms. In the second level, molecular dynamics simulations are performed to extract the elastic properties of the CNT. The third level aims to determine the stiffness of the material that surrounds the CNT (matrix), using the annular membrane analysis. In the fourth level, finite strip analysis of the CNT elastically restrained by the matrix is performed to calculate the critical strain at which the CNT buckles locally. In order to achieve accurate results and take the CNT-matrix interaction into account, the $3^{rd}$ and $4^{th}$ steps may be repeated iteratively until convergence is achieved. The proposed multilevel approach is applied to several CNTs embedded in a cylindrical representative volume element and illustrated in detail. It shows that (i) the interaction between the CNT and the matrix should be taken into account and (ii) the buckling at nanoscale is sensitive to several types of local buckling modes.

A Study on the Development of Life Sports outdoor For Community Welfare

  • KIM, Young-Chul;KIM, Jun-Su
    • Journal of Sport and Applied Science
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    • v.4 no.1
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    • pp.1-7
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    • 2020
  • Sport activities of the local residents are admitted as a positive and awarding welfare. This study reviews the current status of and the way to activate life sport program on the policy level that would bring a number of effects. By reviewing related-literature review, this study presents theoretical and practical foundation regarding on the necessity for the local social welfare, organization operation, facilities, participation, leadership, and program management. Finally, the authors suggest policies for life sport development on local level below. First, in order to the function of sport for all in social welfare system, it is needed to pursue institutional changes to secure diversity in the age group which participates in sports for all. Second, connectivity in public sports facilities should be fortified. The government should develop sports program in conjunction with public sports facilities built for the interest of community members. Third, club advisors should be educated with well organized-manual and reeducated to rebuild their capacity to develop the programs and manage them if necessary. In the similar view, the policy which can check the advisor's field experience and ability should be prepared. Fourth, for economic sustainability, a profit generating project developing a target marketing strategy is required.

Welfare Policy Visualization Analysis using Big Data -Chungcheong- (빅데이터를 활용한 복지정책 시각화분석 -충청도 중심으로-)

  • Dae-Yu Kim;Won-Shik Na
    • Advanced Industrial SCIence
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    • v.2 no.1
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    • pp.15-20
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    • 2023
  • The purpose of this study is to analyze the changes and importance of welfare policies in Chungcheong Province using big data analysis technology in the era of the Fourth Industrial Revolution, and to propose stable welfare policies for all generations, including the socially underprivileged. Chungcheong-do policy-related big data is coded in Python, and stable government policies are proposed based on the results of visualization analysis. As a result of the study, the keywords of Chungcheong-do government policy were confirmed in the order of region, society, government and support, education, and women, and welfare policy should be strengthened with a focus on improving local health policy and social welfare. For future research direction, it will be necessary to compare overseas cases and make policy proposals on the stable impact of national welfare policies.

On utilizing PLS-SEM based IPM method - Focused on export competitiveness factor (PLS-SEM 기반 IPM 방법 활용 - 수출 경쟁력 요인 대상)

  • Kim, Mincheol
    • Journal of Digital Convergence
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    • v.17 no.7
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    • pp.43-47
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    • 2019
  • The aim of this study was to apply the Importance-Performance Map (IPM) method based on PLS-SEM by extending the importance-performance analysis (IPA), which is an existing method to grasp strategic policies through the difference of importance and satisfaction of existing competitiveness factors. For this application, this study was applied to research related to policy measures that can survive and spread in global competition by analyzing strategic factors of information technology (IT) convergence industry. The development of IT convergence industry, which is the subject of this study, has the effect of revitalizing related industry development and employment activation. Therefore, this study expanded the possibility of applying this research methodology to research the strategic factors to activate exports of SMEs (Small and medium-sized enterprises) in the convergency industry. In order to achieve this goal, the analytical methodology of this study was applied and the policy measures for IT SMEs. Therefore, based on the analysis results of this study, this study can apply this research methodology to other fields as a strategic tool in establishing and enforcing policies for export activation of IT convergence industry.

A Study on Collection Method of IoT Information for The Adaptation of Web Services (웹 서비스 적용을 위한 IoT 정보 수집 방법에 관한 연구)

  • Sim, Sung-Ho;Han, Jung-Soo
    • Journal of the Korea Convergence Society
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    • v.8 no.12
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    • pp.71-76
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    • 2017
  • It is necessary to develop a service that meets various environmental requirements so that the Internet of things can be applied to the fourth industry in overall. This paper presents a method for extracting IoT devices information to change the current provider centric service provision environment in order to construct a user centered service provision environment for Web services. Also, it provides users to utilize the appropriate web services through taking advantage of IoT devices information. The existing service provision environment is focused on the method of selecting the service using the provider service information, thus, it is considered necessary for a user-oriented service search method to be in need. In this study, the service list is provided to the user by combining provider information and information extracted from IoT Devices. IoT information collection generates information by separating context information such as information between IoT devices and users and event information between devices through identifiers. In this paper, we propose a development of a user centric service environment by presenting users with a necessary service list through the proposed IoT information.