• Title/Summary/Keyword: Technical Issues

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Method's to introduce ROKN Nuclear Propulsion Submarines (한국형 원자력 추진 잠수함 도입방안)

  • Jang, Jun-Seop
    • Strategy21
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    • s.42
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    • pp.5-52
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    • 2017
  • Debates about introducing nuclear submarines have been a main issue in Korea. The highest officials and the government has started to think seriously about the issue. Yet there were no certain decision to this issue or any agreements with US but it is still necessary to review about introducing nuclear submarines, the technologies and about the business. The reason for such issues are the highest officials of Korea to build nuclear submarine, nK's nuclear development and SLBM launching. ROKN's nuclear submarine's necessity will be to attack(capacity to revenge), defend(anti-SSBN Operation) and to respond against neighboring nation's threat(Russia, Japan, China). Among these nations, US, Russia (Soviet Union), Britain, France had built their submarines in a short term of time due to their industrial foundation regarding with nuclear propulsion submarines. However China and India have started their business without their industrial foundation prepared and took a long time to build their submarines. Current technology level of Korea have reached almost up to US, Russia, Britain and France when they first built their nuclear propulsion submarines since we have almost completed the business for the Changbogo-I,II and almost up to complete building the Changbogo-III which Korea have self designed/developed. Furthermore Korea have reached the level where we can self design large nuclear reactors and the integrated SMART reactor which we can call ourselves a nation with worldwide technologies. If introducing the nuclear submarine to the Korea gets decided, first of all we would have to review the technological problems and also introduce the foreign technologies when needed. The methods for the introduction will be developments after loans from the foreign, productions with technological cooperations, and individual production. The most significant thing will be that changes are continuous and new instances are keep showing up so that it is important to only have a simple reference to a current instances and have a review on every methods with many possibilities. Also developing all of the technologies for the nuclear propulsion submarines may be not possible and give financial damages so there may be a need to partially introduce foreign technologies. For the introduction of nuclear propulsion submarines, there must be a resolution of the international regulations together with the international/domestics resistances and the technological problems to work out for. Also there may be problem for the requirement fees to solve for and other tough problems to solve for. However nuclear submarines are powerful weapon system to risk everything above. This is an international/domestically a serious agenda. Therefore rather than having debates based on false facts, there must be a need to have an investigations and debates regarding the nation's benefits and national security.

A research paper for e-government's role for public Big Data application (공공의 빅데이터 활용을 위한 전자정부 역할 연구)

  • Bae, Yong-guen;Cho, Young-Ju;Choung, Young-chul
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.21 no.11
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    • pp.2176-2183
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    • 2017
  • The value of Big-Data which is a main factor of the fourth Industrial Revolution enhances industrial productivity in private sector and provides administrative services for nations and corporates in public sector. ICT-developed countries are coming up with Big-Data application in public sector rapidly. Especially, when it comes to social crisis management, they are equipped with pre-forcasting system. Korean Government also emphasizes Big-Data application in public sector for the social crisis management. But the reality where the overall infrastructure vulnerability reveals requires preparation and operation of measurement for social problems. Accordingly, we need to analyze Big-Data application problem and benchmark the precedented cases, thereby, direct policy diversity. Hence, this paper proposes the roles and rules of E-government analyzing problems from Big-Data application. The following policy proposes open Information and legal&institutional improvement, Big-Data service considerations threatening privacy issues in Big-Data ecosystem, necessity of operational and analytical technology for Big-Data and related technology in technical implication of Big-Data.

HIMIPv6: An Efficient IP Mobility Management Protocol for Broadband Wireless Networks (HIMIPv6: 광대역 무선 통신 네트워크를 위한 효율적인 IP 이동성 관리 프로토콜)

  • Jeong Hyeon-Gu;Kim Young-Tak;Maeng Seung-Ryoul;Chae Young-Su
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.31 no.4B
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    • pp.291-302
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    • 2006
  • With the increasing deployment of mobile devices and the advent of broadband wireless access systems such as WiBro, WiMAX, and HSDPA, an efficient IP mobility management protocol becomes one of the most important technical issues for the successful deployment of the broadband wireless data networking service. IETF has proposed the Mobile IPv6(MIPv6) as the basic mobilitymanagement protocol for IPv6 networks. To enhance the performance of the basic MIPv6, researchers have been actively working on HMIPv6 and FMIPv6 protocols. In this paper, we propose a new mobility management protocol, HIMIPv6 (Highly Integrated MIPv6), which tightly integrates the hierarchical mobility management mechanism of the HMIPv6 and the proactive handover support of the FMIPv6 to enhance the handover performance especially for the cellular networking environment with high frequent handover activities. We have performed extensive simulation study using ns-2 and the results show that the proposed HIMIPv6 outperforms MIPv6, FMIPv6 and HMIPv6 in terms of signaling overhead, service interruption and packet lost during handovers.

A Method to Manage Faults in SOA using Autonomic Computing (자율 컴퓨팅을 적용한 SOA 서비스 결함 관리 기법)

  • Cheun, Du-Wan;Lee, Jae-Yoo;La, Hyun-Jung;Kim, Soo-Dong
    • Journal of KIISE:Software and Applications
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    • v.35 no.12
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    • pp.716-730
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    • 2008
  • In Service-Oriented Architecture (SOA), service providers develop and deploy reusable services on the repositories, and service consumers utilize blackbox form of services through their interfaces. Services are also highly evolvable and often heterogeneous. Due to these characteristics of the service, it is hard to manage the faults if faults occur on the services. Autonomic Computing (AC) is a way of designing systems which can manage themselves without direct human intervention. Applying the key disciplines of AC to service management is appealing since key technical issues for service management can be effectively resolved by AC. In this paper, we present a theoretical model, Symptom-Cause-Actuator (SCA), to enable autonomous service fault management in SOA. We derive SCA model from our rigorous observation on how physicians treat patients. In this paper, we first define a five-phase computing model and meta-model of SCA. And, we define a schema of SCA profile, which contains instances of symptoms, causes, actuators and their dependency values in a machine readable form. Then, we present detailed algorithms for the five phases that are used to manage faults the services. To show the applicability of our approach, we demonstrate the result of our case study for the domain of 'Flight Ticket Management Services'.

A Study on Constructive Method and the Practical use of Marine GIS (해양 GIS 구축 및 활용 방안 연구)

  • Lee, Gi-Chul;Suh, Sang-Hyun;Cho, Seung-Rae;Han, Chang-Seuk;Park, Chang-Ho;Roh, Hong-Seung;Kim, Eun-Hyung;Kim, Jin-Hoo;Park, Jong-Hwa;Suh, Young-Sang
    • Journal of the Korean Association of Geographic Information Studies
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    • v.9 no.2
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    • pp.126-143
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    • 2006
  • The main objective of this study is to determine the methodology to increase the practical use of future Marine GIS based on the user's point of view of the analysis of maritime & fishery government agencies's roles. GIS related job duty of two Busan District offices of MOMAF(Ministry of Maritime and Fisheries), NFRDI(National Fisheries Research & Development Institute), Korea Institute of Maritime and Fisheries Technology and marine & fisheries local government offices of Busan Metropolitan city were analyzed for the establishment of MGIS, future extended service targeting user's increased practical utilization. Several suggestions in the area of production mechanism and technical policy for marine geographic information among the government agencies are developed to settle down successfully MGIS in Busan. Furthermore, 10 fields of Marine Geographic issues are rearranged for intending the desirable system and service.

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Methodology for Processing In-Vehicle Traffic Data in Wireless Traffic Information Systems and Experimental Evaluation (무선통신 기반 교통정보시스템의 차내 교통정보 가공기법 개발 및 현장적용성 평가)

  • Park, Joon-Hyeong;Oh, Cheol;Kang, Kyeong-Pyo;Kim, Tae-Hyeong
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.8 no.4
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    • pp.14-27
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    • 2009
  • Collection of invaluable real-time traffic data becomes available under ubiquitous transportation sensor networks (UTSN). Various research efforts have been made to utilize such useful data for deriving more accurate and reliable traffic information. This study presented a novel concept of decentralized traffic information and method to process traffic data which are obtained from inter-vehicle communications under the UTSN. In addition, an experimental evaluation to investigate the feasibility of the proposed method using probe vehicle data. Predictive travel times were estimated and evaluated for the feasibility investigation. Technical issues were derived and discussed to fully implement the proposed system. The outcomes of this study would be used as a guideline in designing better next-generation traffic information systems.

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The Effects of Perceived Risk and Interactivity on User's Satisfaction and Commitment in Personal Media (1인 미디어의 지각된 위험 및 상호작용성이 사용자 만족과 몰입에 미치는 영향)

  • Chung, Young-Soo;Jung, Chul-Ho
    • Management & Information Systems Review
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    • v.28 no.1
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    • pp.125-156
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    • 2009
  • The primary purpose of this study is to identify the determinants of the users' satisfaction and commitment in personal media. For these purposes, we developed a research model based on the literature reviews of personal media, perceived risk and interactivity, satisfaction, and commitment. This study has identified four dimensions in the concept of perceived risk, such as privacy risk, social risk, time loss risk, and economic risk, and three dimensions in the concept of perceived interactivity, such as active control, two-way communication, and responsiveness. In survey, data were collected from 428 male and female who have an experience in personal media. Data was analyzed factor analysis, reliability analysis, measurement model analysis, and structural model analysis by utilizing SPSS 15.0 and AMOS 5.0 program. Analysis results of research model indicate the following. Firstly, privacy risk, active control, two-way communication, and responsiveness are significantly related satisfaction. Secondly, privacy risk, time loss risk, economic risk, active control, and two-way communication are significantly related commitment. Thirdly, users' satisfaction has positive relationship with commitment in personal media. Based on these results, theoretical implications for relevant researchers and managerial implications for personal media vitalization and marketing strategy are discussed. Finally, limitations for this study and further research issues are suggested.

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Community Health Promotion Program for Vulnerable Women (취약계층 여성의 건강증진 방안)

  • Jeon, Gyeong-Suk;Lee, Seon-Ja;Lee, Hyo-Young;Hong, Bo-Kyung;Kim, Bo-Ram;Jang, Soong-Nang
    • Korean Journal of Health Education and Promotion
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    • v.24 no.3
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    • pp.99-118
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    • 2007
  • There are little program and services that have been developed to address the health and health care needs of vulnerable women. The access for their timely and appropriate health care and health promotion services have been a increasing concern. The purpose of this study was to suggest health promotion program for vulnerable women with collaboration of women's NGOs. At the first part of this study, we reviewed a conceptual framework for identifying vulnerable population, and issues regarding health problems, unmet needs, policies and programs that have been developed to address their need. In second part, we focused on investigating the role, subjects and activities of women's NGOs and their capacity for health promotion program. The last part of this study proposed health promotion programme with integrating above two parts of study. In describing what type of health promotion program available in women's NCOs, eight major programs and services were summarized. 1. Direct health promotion program and collaborating program with other services. 2. Education and training for empowerment of vulnerable women 3. Organizing mutual support system such as self-help group 4. Community supports. Vulnerable women living at home may benefit from linkage to community services as much as women living in facility 5. Organizing collaboration system with program for economic support and job training, social rehabilitation 6. Trainer's training for practitioners in NGOs 7. Technical, informational support from professional groups 8. A national coordinating policies for vulnerable population should be established at the central level. National support for NGOs' health promotion program are needed hi solving unmet needs of vulnerable women.

Influence of ethical consumption proprieties on the attitude and purchasing intention of ethical cosmetics (윤리적 소비성향이 윤리적 화장품에 대한 태도와 구매의도에 미치는 영향)

  • Baek, Ji-Eun;Rhee, Young-Ju
    • Journal of the Korea Fashion and Costume Design Association
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    • v.22 no.1
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    • pp.73-84
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    • 2020
  • Recently, there has been a change in consumer culture. The paradigm is changing from a consumption model that used to emphasize rationality to an ethical consumption model that focuses on sustainability. Such a change in consumption patterns has also been seen in the cosmetics industry, but studies to empirically assess this trend are incomplete. Therefore, the purpose of this study is to empirically identify the impact of ethical consumption proprieties on attitudes and purchasing intentions for ethical cosmetics. To achieve the aim of this study, 506 adult women residing in Korea were selected as subjects and surveyed. To identify the demographic characteristics of the study participants, a technical statistical analysis and frequency analysis were conducted. To check the validity and reliability of the measuring tools, an exploratory factor analysis was performed, and the Cronbach's α factor was calculated. The analysis method was analyzed using the SPSS 25.0 and the Amos 25.0 statistical analysis programs. The results of this study are as follows. First, ethical spending tendencies had a positive impact on attitudes toward ethical cosmetics. Specifically, interest in ethical issues, altruism, and business ethics perception have had a positive impact on attitudes toward ethical cosmetics. However, consumer effectiveness had no significant impact on attitudes toward ethical cosmetics. Second, attitudes toward ethical cosmetics had a positive effect on purchasing intentions. This study found that for the spread of ethical cosmetics and ethical consumption trends varied according to the age and that attitudes toward ethical cosmetics and differences in purchasing intentions should be kept in mind. It also showed that attitudes toward ethical cosmetics affect purchasing intentions. The results of this study suggested that the analysis of adult women, the main consumers of cosmetics, by age was meaningful for finding the factors for growth in the macroscopic ethical cosmetics industry and that the industry could raise its ethical awareness. If such tasks are systematically established, ethical cosmetics are thought to be able to actively solve social problems and lead a mature cosmetics industry.

A Comparative Study on the Application of RISP in the Context of Risk Types -Focusing on Typhoon and Hydrofluoric Acid Spill Risks (위험 유형에 따른 위험 정보 탐색과 처리 과정 연구 -불산 유출과 태풍 관련 위험 상황 비교 중심)

  • Huh, Seohyeon;Kim, Yungwook
    • Korean journal of communication and information
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    • v.70
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    • pp.246-276
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    • 2015
  • From a historical perspective of risk communication, risks can be classified by their associated level of responsibility. In the case of technical risks such as hazardous chemical accidents, people perceive that risk-related organizations have a high level of responsibility; however, they do not in traditional risks such as natural disasters. This study aims to examine risk information seeking and processing, as seen in two types of risk, based on the Risk Information Seeking and Processing(RISP) model. For this purpose, hypotheses and a research question are developed with current domestic risk issues, and the results show significant differences in risk information seeking and processing between the two types of risk. Specifically, in the case of the chemical spill accident, negative emotion against relevant institutions makes different information seeking and processing compared to the natural disaster. The low level responsibility risk such as typhoon comparatively follows the flow of the original RISP model. However, the high level responsibility risk such as the hydrofluoric acid spill did not match with the RISP model. Based on the research results, theoretical implications were discussed.

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