• Title/Summary/Keyword: Idea Sharing

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Design of Power System Stabilizer using QFT (QFT를 이용한 전력 계통 안정화 장치 설계)

  • Lee, J.P.;Chung, H.H.;Kim, C.H.;Chung, H.H.
    • Proceedings of the KIEE Conference
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    • 2000.11a
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    • pp.187-189
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    • 2000
  • In this paper, QFT robust control strategy is proposed to improve stability of power systems in the presence of parametric uncertainty. The basic idea in QFT is to convert design specifications of a closed loop system and plant uncertainties into robust stability and performance bounds on the open loop transmission of the nominal system and then to design a controller by using the gain-phase loop sharing technique. The robustness of the QFT controller has been investigated on a single machine infinite bus model by nonlinear simulations.

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Multifactor Authentication Using a QR Code and a One-Time Password

  • Malik, Jyoti;Girdhar, Dhiraj;Dahiya, Ratna;Sainarayanan, G.
    • Journal of Information Processing Systems
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    • v.10 no.3
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    • pp.483-490
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    • 2014
  • In today's world, communication, the sharing of information, and money transactions are all possible to conduct via the Internet, but it is important that it these things are done by the actual person. It is possible via several means that an intruder can access user information. As such, several precautionary measures have to be taken to avoid such instances. The purpose of this paper is to introduce the idea of a one-time password (OTP), which makes unauthorized access difficult for unauthorized users. A OTP can be implemented using smart cards, time-based tokens, and short message service, but hardware based methodologies require maintenance costs and can be misplaced Therefore, the quick response code technique and personal assurance message has been added along with the OTP authentication.

The Effect of the LOHAS Tendency on the Attitude and Purchase Intention for Environmental-Friendly Food Materials: From the Perspective of New Seniors (뉴시니어 소비자의 로하스(LOHAS) 성향이 친환경 식자재 태도 및 구매에 미치는 영향 연구)

  • Kim, Younghee;Youn, Hyewon
    • The Korean Journal of Food And Nutrition
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    • v.27 no.3
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    • pp.393-399
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    • 2014
  • The purpose of this study is to analyze the LOHAS tendency of new seniors' and its effects on the attitude and purchase intention for environmental-friendly food materials. Data were collected through a questionnaire survey from random sample of 162 senior customers in Seoul and Kyunggi area. The LOHAS tendency of new seniors can be divided into three factors; environmental-friendly, sustainability and sociality. Environmental problems affected the environmental-friendly factor the most while manufacturing techniques for sustainable products and recycling habits were key variables for the sustainability factor. The idea of companies sharing their value system of LOHAS tendency was the most significant for the sociality factor. Each of these LOHAS tendency factors influenced the purchase intention of the new seniors.

Finite Element Analysis with STEP in Distributive and Collaborative Environment (분산 협업 환경에서의 유한요소 해석에 관한 연구)

  • Cho, Seong-Wook;Kwon, Ki-Eak
    • Korean Journal of Computational Design and Engineering
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    • v.11 no.5
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    • pp.384-392
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    • 2006
  • In this research, the feasibility of distributed finite element analysis system with STEP and CORBA has been investigated. The enabling technologies such as CORBA and Java play key roles in the development of integrated and geographically distributed application software. In addition to the distribution of analysis modules, numerical solution process itself is again divided into parallel processes using multi-frontal method for computational efficiency. In contrast to the specially designed parallel process for specific hardware, CORBA-based parallel process is well suited for heterogeneous platforms over the network. The idea of Web-based distributed analysis system may be applied to the engineering ASP for design and analysis in the product development processes. We believe that the proposed approach for the analysis can be extended to the entire product development process for sharing and utilizing common product data in the distributed engineering environment, thus eventually provide basis for virtual enterprise.

Secure Cluster Selection in Autonomous Vehicular Networks

  • Mohammed, Alkhathami
    • International Journal of Computer Science & Network Security
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    • v.23 no.1
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    • pp.11-16
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    • 2023
  • Vehicular networks are part of the next generation wireless and smart Intelligent Transportation Systems (ITS). In the future, autonomous vehicles will be an integral part of ITS and will provide safe and reliable traveling features to the users. The reliability and security of data transmission in vehicular networks has been a challenging task. To manage data transmission in vehicular networks, road networks are divided into clusters and a cluster head is selected to handle the data. The selection of cluster heads is a challenge as vehicles are mobile and their connectivity is dynamically changing. In this paper, a novel secure cluster head selection algorithm is proposed for secure and reliable data sharing. The idea is to use the secrecy rate of each vehicle in the cluster and adaptively select the most secure vehicle as the cluster head. Simulation results show that the proposed scheme improves the reliability and security of the transmission significantly.

Present and Future of Risk Management of Construction Practice in Asia

  • Watanabe, Tsunemi
    • International conference on construction engineering and project management
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    • 2015.10a
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    • pp.4-5
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    • 2015
  • Owning to rapid infrastructure development, Asia is experiencing dramatic economic growth. There are not a few cases in which, however, economic growth is achieved by increasing the external diseconomy. Pursuit of sustainable development is one of the most important issues for mankind. Under the post-industrial capitalism society, however, there seems a big risk of increase in the external diseconomy worldwide. The objectives of this manuscript are to discuss importance of risk management of construction practice in present and future. Regarding the latter, a particular attempt is made to discuss how project risk communication should be done to reduce the external diseconomy. Presently, one of the important issues in implementation of infrastructure projects is practice of risk management to properly manage time, cost, quality, and safety: mainly maximization of internal economy. Multi-party risk and uncertainty management process (MRUMP) is one of tolls to assist it. The idea on MRUMP can be used to reduce the external diseconomy through identifying, sharing, and tuning people's rhythms.

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The Suggestion of Design Thinking Process and its Feasibility Study for Fostering Group Creativity of Elementary-Secondary School Students in Science Education (과학 교육에서 초·중등학생의 집단 창의성 함양을 위한 디자인적 사고 프로세스의 제안 및 타당성 검토 연구)

  • Lee, Dohyun;Yoon, Jihyun;Kang, Seong-Joo
    • Journal of The Korean Association For Science Education
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    • v.35 no.3
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    • pp.443-453
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    • 2015
  • In this study, we suggested the design thinking process that was possible to be introduced in science education and also examined the validity of the process in terms of group creativity. To do this, the design thinking process applicable to science education was selected from a variety of design thinking processes developed abroad, and then the process was modified and supplemented. We created the education program based on the developed design thinking process and applied it to high school students. The results revealed that we could offer the design thinking process through the five stages: 'understanding knowledge', 'empathy', 'sharing perspective', 'generating idea', and 'prototype'. With the results of the application of the program, we could confirm the relationship building and information seeking attributes in the understanding knowledge stage and the user-orientation, relationship building, and interpersonal understanding attributes in the empathy stage. We could also find the organization of the team attribute in the sharing perspective stage and the analytical strategic thinking attributes in the generating idea stage. Finally, the communication and analytical strategic thinking attributes in the prototype stage were confirmed. All of the key attributes of the group creativity found from skilled professionals were not confirmed from the students. However, we could ascertain the possibilities that the students should experience the process of group creativity and learn the relevant values through the developed design thinking process.

A Study on Digital Fashion Design Platform based on the 3D Virtual Fashion Technology (3차원 디지털 기술을 기반으로 한 디지털 패션 플랫폼 프로토타입 설계 연구)

  • Park, Jaehyun;Park, Minhee;Kim, Sun-Hee;Song, Youngho
    • Journal of Fashion Business
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    • v.22 no.2
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    • pp.88-106
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    • 2018
  • The domestic fashion industry is not able to exceed the level of fashion that exists in advanced countries due to the relatively weak design competitiveness and the differentiated capability of product development. In order for the domestic fashion industry to become a growth industry that is valued in the world market of infinite competition, a step-by-step support system that can demonstrate and maintain the creative ability of designers is needed. Therefore, this study proposes a template - based 3D virtual fashion technology and a digital fashion platform based on it. The proposed template - based 3D virtual fashion technology is designed to clearly communicate the intention of designers and to be able to instantaneously view the results, thereby reducing the time and cost of producing prototypes. In addition, the digital fashion platform based on the template is designed as a collaborative platform based on idea sharing, which dramatically improves the process of confirming the prototype and initiating the product planning and manufacturing stages. This new technology can contributes to the formation of a business environment and a new area within the existing fashion industry and can be utilized for the development of the fashion industry in the future.

Constructivism : A Shifting Paradigm for Educational Practice in Information Society (정보화사회의 교육 패러다임으로서 구성주의 -본질과 교육적 적용-)

  • Hwang, Hee-Sook
    • Journal of Fisheries and Marine Sciences Education
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    • v.10 no.1
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    • pp.100-113
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    • 1998
  • The information society is characterized by rapidly increasing and changing information. Traditional models of learning and instruct on have emphasized forms of mastering the information in content domains. Storing information and being able to recall it has been central to formal education. But it is no longer possible to master content domains. This paper discusses constructivism as a shifting paradigm for educational research and practice in information society. Constructivism provides an alternative epistemological base to the objectivist tradition. Constructivism holds that there is a real world that we experience. However, the argument is that meaning is imposed on the world by us, rather than existing in the world independently of us. Meaning is seen as rooted in experience. The experience in which an idea is embedded is critical to the individual's understanding of that idea. From the constructivist perspective, learning is not a stimulus-response phenomenon. It requires self-regulation and the building of conceptual structures through reflection and abstraction. Problems are not solved by the retrieval of rote-learned right answers. The effective motivation to continue learning can be fostered by leading students to experience the pleasure that is inherent in solving problems chosen as one's own. Constructivism requires the change of the teacher's role from a knowledge transmitter to a coach or facilitator of student's understanding. Constructivist teachers inquire about students' understanding of concepts before sharing their own understandings of those concepts, and encourage students to engage in dialogue, both with them arid with one another. In Korea, the educational reform called open education has been spreading through out the country. There should be a paradigm shift in learning and instruction from objectivism to constructivism for better educational reform in Korea.

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Female Workers' Stress from Nurturing with Preschool Children (미취학자녀를 둔 여성 임금근로자의 양육스트레스)

  • Im, Jong-Ho
    • The Journal of the Korea Contents Association
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    • v.14 no.5
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    • pp.132-143
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    • 2014
  • This study discusses factors that affect on female workers' stress from nurturing. Referring to the first research (2008) and the second research (2009) of KLoWF, the study analyzed the data of 218 female workers with one or more preschool children. The results from the analysis are as the following. First, the female workers who acknowledge her image as a traditional woman are more likely to be exposed to greater stress. Therefore, now working mothers need to free themselves from the traditional idea. Second, since it was clearly observed that husbands' who share family responsibilities has a significant impact on women's stress from nurturing, a new focus should be on the effectiveness of husband's sharing of family responsibilities, whereas it has been mainly focused on education of working mothers. Third, considering the result that nurturing expense variable showed a significant statistics, there is a desperate need of a political task to support nurturing expenses.