• Title/Summary/Keyword: attachment-obstacles

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Design of a Transformable Track Mechanism for Wall Climbing Robots (변형 트랙 메커니즘을 이용한 등반로봇 설계)

  • Lee, Gi-Uk;Seo, Kun-Chan;Kim, Hwang;Kim, Sun-Ho;Jeon, Dong-Su;Kim, Hong-Seok;Kim, Jong-Won
    • Journal of the Korean Society for Precision Engineering
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    • v.29 no.2
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    • pp.178-184
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    • 2012
  • This paper presents a transformable track mechanism for wall climbing robots. The proposed mechanism allows a wall climbing robot to go over obstacles by transforming the track shape, and also increases contact area between track and wall surface for safe attachment. The track mechanism is realized using a timing belt track with one driving actuator. The inner frame of the track consists of serially connected 5R-joints and 1P-joint, and all joints of the inner frame are passively operated by springs, so the mechanism does not require any actuators and complex control algorithms to change its shape. Static analysis is carried out to determine design parameters which enable $90^{\circ}$ wall-to-wall transition and driving over projected obstacles on wall surfaces. A Prototype is manufactured using the transformable track on which polymer magnets are installed for adhesion force. The size of the prototype is $628mm{\times}200mm{\times}150mm$ ($Length{\times}Width{\times}Height$) and weight is 4kgf. Experiments are performed to verify its climbing capability focusing on $90^{\circ}$ wall to wall transition and driving over projected obstacle.

The influence of parents' child abuse, school violence and friends attachment on mental health in childhood (환경적 요인이 아동 성장기의 정신건강에 미치는 영향)

  • Min, Dae Kee
    • Journal of the Korean Data and Information Science Society
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    • v.25 no.2
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    • pp.293-304
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    • 2014
  • A child's mental health is an important element of his proper emotional development. Abuse of children by parents and peer groups are causes of depression and anxiety in children. These conditions become obstacles to their normal growth process which can be a contributing factor to juvenile delinquency. This study is based in the theoretical background of the relationship between abuse from parents and peer groups and children's emotional health. This information is analyzed through structural equation modeling.

Lived Adaptation Experiences of New ICU Nurses Who are Working in a Newly Established University Hospital (일개 신설 대학교 병원 중환자실 신규 간호사의 적응 경험)

  • Park, Hyoung-Sook;Kim, Kyoung-Nam;Kang, Eun-Hee;Lee, Jeon-Ma;Park, Soon-Mi
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.18 no.2
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    • pp.226-236
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    • 2011
  • Purpose: The purpose of this study was to determine the meaning of the adaptation experiences of new ICU nurses who were working in a newly established university hospital. The study was based on phenomenological research methodology. Method: Data were collected over 3 months through in depth interview with 6 new nurses who had worked less than 1 year in a newly established ICU of university hospital of less than 1 year located in Y city. The Colaizzi analysis method was used for data analysis. Results: The themes were classified into 13 themes clusters. The 13 themes clusters were finally grouped into 6 categories, 'The endlessness of a new beginning', 'Pressure of work due to lack of senior nurses', 'Wanting to quit', 'Attachment for the complete hospital and ICU', 'Preciousness of colleagues', 'Pride in self-growth'. Conclusion: New ICU nurses have a difficult time due to pressures of work and lack of expert knowledge, and anxiety adds to these problems making the situation more difficult. The study results indicate that professional knowledge and skills learned through repetition of difficult work, pride through self growth, recognition from others and good-fellowship are driving forces to overcome obstacles and with stand difficult daily work.

A Study of the Effects of Job Burnout on Organizational Effectiveness and Turnover Intention (직무소진이 조직유효성과 이직의도에 미치는 영향에 대한 연구)

  • Kwon, Yong-Man
    • Journal of Digital Convergence
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    • v.13 no.10
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    • pp.165-170
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    • 2015
  • This study attempted to investigate an efficient human resources management plan by enhancing organizational performance and reducing the factors which influence turnover intention after analyzing the effects of job burnout on organizational effectiveness and turnover intention. To test a research model, after explaining the purpose of the study to them at work, data were obtained through a standardized questionnaire survey. To figure out the effects of job burnout on organizational effectiveness and turnover intention, causality was analyzed using the Structural Equation Model (SEM). According to hypothesis testing, a total of five hypotheses were chosen, and the following results were obtained: Job burnout had a significant effect on organizational commitment (-0.456), job satisfaction (-0.488) and turnover intention (0.501). In terms of relations between organizational effectiveness and turnover intention, organizational commitment (-0.350) and job satisfaction (-0.199) decreased turnover intention. Therefore, it is important to discover and analyze these obstacles which hinder employees from being absorbed in their work with attachment.

A Study on RFID/USN Demand Diffusion Strategy (RFID/USN 수요확산 방안에 관한 연구)

  • Park, Yong-Jae;Heo, Pil-Sun
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2007.10a
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    • pp.669-672
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    • 2007
  • Recently, the government has established the synthesis measures of RFID/USN application, plans to facilitate 16 most priority fields as a leading business, and has kept making efforts to spread the application by making RFID attachment mandatory on harbor and distribution industry. In spite of these efforts, it is necessary to analyze actual state of each industry and institution demanding RFID/USN to lead it to induce them. This study tries to draw the method of spreading RFID/USN usage by analyzing and verifying the actual situation of their application and its problems, and to figure out how to improve the problems in each sector on the basis of the analysis by comparing and analyzing the obstacles in their wide usage.

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NFC-based Smartwork Service Model Design (NFC 기반의 스마트워크 서비스 모델 설계)

  • Park, Arum;Kang, Min Su;Jun, Jungho;Lee, Kyoung Jun
    • Journal of Intelligence and Information Systems
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    • v.19 no.2
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    • pp.157-175
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    • 2013
  • Since Korean government announced 'Smartwork promotion strategy' in 2010, Korean firms and government organizations have started to adopt smartwork. However, the smartwork has been implemented only in a few of large enterprises and government organizations rather than SMEs (small and medium enterprises). In USA, both Yahoo! and Best Buy have stopped their flexible work because of its reported low productivity and job loafing problems. In addition, according to the literature on smartwork, we could draw obstacles of smartwork adoption and categorize them into the three types: institutional, organizational, and technological. The first category of smartwork adoption obstacles, institutional, include the difficulties of smartwork performance evaluation metrics, the lack of readiness of organizational processes, limitation of smartwork types and models, lack of employee participation in smartwork adoption procedure, high cost of building smartwork system, and insufficiency of government support. The second category, organizational, includes limitation of the organization hierarchy, wrong perception of employees and employers, a difficulty in close collaboration, low productivity with remote coworkers, insufficient understanding on remote working, and lack of training about smartwork. The third category, technological, obstacles include security concern of mobile work, lack of specialized solution, and lack of adoption and operation know-how. To overcome the current problems of smartwork in reality and the reported obstacles in literature, we suggest a novel smartwork service model based on NFC(Near Field Communication). This paper suggests NFC-based Smartwork Service Model composed of NFC-based Smartworker networking service and NFC-based Smartwork space management service. NFC-based smartworker networking service is comprised of NFC-based communication/SNS service and NFC-based recruiting/job seeking service. NFC-based communication/SNS Service Model supplements the key shortcomings that existing smartwork service model has. By connecting to existing legacy system of a company through NFC tags and systems, the low productivity and the difficulty of collaboration and attendance management can be overcome since managers can get work processing information, work time information and work space information of employees and employees can do real-time communication with coworkers and get location information of coworkers. Shortly, this service model has features such as affordable system cost, provision of location-based information, and possibility of knowledge accumulation. NFC-based recruiting/job-seeking service provides new value by linking NFC tag service and sharing economy sites. This service model has features such as easiness of service attachment and removal, efficient space-based work provision, easy search of location-based recruiting/job-seeking information, and system flexibility. This service model combines advantages of sharing economy sites with the advantages of NFC. By cooperation with sharing economy sites, the model can provide recruiters with human resource who finds not only long-term works but also short-term works. Additionally, SMEs (Small Medium-sized Enterprises) can easily find job seeker by attaching NFC tags to any spaces at which human resource with qualification may be located. In short, this service model helps efficient human resource distribution by providing location of job hunters and job applicants. NFC-based smartwork space management service can promote smartwork by linking NFC tags attached to the work space and existing smartwork system. This service has features such as low cost, provision of indoor and outdoor location information, and customized service. In particular, this model can help small company adopt smartwork system because it is light-weight system and cost-effective compared to existing smartwork system. This paper proposes the scenarios of the service models, the roles and incentives of the participants, and the comparative analysis. The superiority of NFC-based smartwork service model is shown by comparing and analyzing the new service models and the existing service models. The service model can expand scope of enterprises and organizations that adopt smartwork and expand the scope of employees that take advantages of smartwork.

Co-residence and Its Effect on Labor Supply of Married Women (세대간 동거와 기혼여성의 노동공급)

  • Sung, Jaimie;Chah, Eun Young
    • Journal of Labour Economics
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    • v.24 no.1
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    • pp.97-124
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    • 2001
  • Co-residence is a type of intergenerational private transfers of resources: money, time and space. Adult daughters and their elderly parents decide to co-reside, depending on their utility levels before and after co-residence that mainly depend on the health status of the elderly. Therefore, co-residence implies positive net benefits to both parties in the sense that, when they co-reside, elderly parents share childcare and adult daughter provide elderly care. In other words, formal (paid) care can be substituted with informal (unpaid) one. Both marriage and giving births are considered as the major obstacles to labor market attachment of women who bear burdens of home production and childcare. Co-residence can be a solution for married women to avoid career interruption by sharing burdens with their elderly parents. However, most previous studies using the U.S. data on intergenerational private transfers focused on elderly care and have concluded that they reduce government expenditures associated with public subsidies to the elderly. This study focuses on adult daughters and it examines effects of co-residence on labor supply of married women in Korea, who face limited formal childcare programs in terms of both quantity and quality. It applies the Tobit model of married women's labor supply to the data from the Second Wave of the Korean Labor and Income Panel Survey( 1999), in order to investigate effects of co-residence and the work and health status of the co-residing elderly as well as their own health status. Four specifications of the empirical model are tested that each includes co-residence with elderly parents, their gender, or their work and health status. Estimation results show that co-residence, co-residence with female elderly, and co-residence with not-working female elderly have significant positive effects on labor supply of married women while poor health status of co-residing female elderly does not bring about any negative effects. However, co-residence with male elderly, regardless of their work and health status, has no significant effect The results indicate that co-residence is closely related to sharing of home production among female elderly and adult daughters who are married and, through intergenerational private transfers of resources in terms of time, it helps women avoid career interruption.

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A Study on the Evaluation and Analysis of Convenient Facilities in Social Welfare Hall through Consideration of the Disabled Person Use (장애인 이용을 고려한 사회복지관 편의시설 평가 및 분석에 관한 연구)

  • Jung, Rye-Hwa;Lee, Wan-Geon
    • Korean Institute of Interior Design Journal
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    • v.18 no.3
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    • pp.114-121
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    • 2009
  • The number of the disabled is increasing every year. Growing interest in social welfare, but still the disabled person in places is restricted on the activities are due to obstacles. This study proposes an improvement direction through an research and analysis of installation status of convenient facilities in social welfare halls was planned after that the law of increase of convenience for the disabled person is enforced in 1998. This study analyzed nine social welfare halls of seoul including Yongsan-gu(GW), Guro-gu(GD, HW), Yeongdeungpo-gu(SG), Seodaemun-gu(SD), Dobong-gu(DB), Nowon-gu(NS), Seongbuk-gu(WG) and Dongdaemun-gu(JG). The evaluation criteria for the installation of convenient facilities for the disabled person in each social welfare hall based on the law of increase of convenience for the disabled person, and referred to other data. Also, review the criteria for the installation of convenient facilities, and grasp the present situation through the survey of convenient facilities in social welfare halls, and provides the installation standards of convenient facilities. The result are as followings. There were many problems to be improved in approach of the intermediate space, parking lot, entrance of the inside space and corridor that must be installed for the convenience of the disabled. In the intermediate space, the slope of the ramp, curb, induction handle etc. for a safety must be installed. Parking spaces for the disabled must be located closest to the main entrance, an induction marker or the handle, and the attachment of a directional sign etc. must be improved. In the inside space, it is convenient for the disabled person use to install an automatic door and swing door simultaneously at the main entrance. And, the height of the door handle, an induction block, a braille display panels of the appropriate height in the entrance, a braille display in start and end of the stairs handle, the handle of the side wall, the stairs to prevent slippage etc. must be improved in the corridors. The case of the sanitation which is a recommendation item is equipped formally with disabled toilets are difficult to use. Information and other convenience facilities for the disabled person in all the social welfare halls were not considered.