• Transactions of the Korean Society of Pressure Vessels and Piping
• /
• v.12 no.1
• /
• pp.85-92
• /
• 2016

The operating temperature of VHTR components is much higher than that of conventional PWR due to high core outlet temperature of VHTR. Material requirements and technical issues of VHTR reactor components which are mainly dominated by high temperature service condition were discussed. The codification effort for high temperature material and design methodology are explained. The design class for VHTR components are classified as class A or B according to the recent ASME high temperature reactor design code. A separation of thermal boundary and pressure boundary is used for VHTR components as an elevated design solution. Key design characteristics for reactor pressure vessel, control rod, reactor internals, graphite reflector, circulator and intermediate heat exchanger were analysed. Thermo-mechanical analysis of the process heat exchanger, which was manufactured for test, is presented as an analysis example.

• Knowledge Management Research
• /
• v.17 no.4
• /
• pp.147-162
• /
• 2016

Knowledge sharing has many benefits; however, employees are generally reluctant to share their knowledge with co-workers. This reluctance can be attributed to the facts that sharing knowledge involves the threat of losing personal competitiveness and the codification of knowledge for sharing requires additional effort. This study explains why employees engage in knowledge sharing despite the threat and cost of sharing knowledge. Specifically, it examines the effects of the quality of co-worker exchange (CWX) on knowledge sharing and the moderating effect of learning goal orientation on the relationship between CWX and knowledge sharing. Data from 186 individuals indicate that there is a positive relationship between CWX and knowledge sharing, and that this relationship is strengthened when learning goal orientation is low rather than when it is high. The theoretical and practical implications of the findings are also discussed.

• Wind and Structures
• /
• v.8 no.4
• /
• pp.295-307
• /
• 2005

The paper describes the work of the IAWE Working Group WBG - Reliability and Code Level, one of the International Codification Working Groups set up at ICWE10 in Copenhagen. The following topics are covered: sources of uncertainties in the design wind load, appropriate design target values for the exceedance probability of the design wind load for different structural classes with different consequences of a failure, yearly exceedance probability of the design wind speed and specification of the design aerodynamic coefficient for different design purposes. The recommendations from the working group are summarized at the end of the paper.

• Wind and Structures
• /
• v.8 no.4
• /
• pp.269-281
• /
• 2005

The paper describes the work of the IAWE Working Group WGF - Extreme Wind Prediction and Zoning, one of the international codification working groups set up in 2000. The topics covered are: the international database of extreme winds, quality assurance and data quality, averaging times, return periods, probability distributions and fitting methods, mixed wind climates, directionality effects, the influence of orography, rare events and simulation methods, long-term climate change, and zoning and mapping. Recommendations are given to promote the future alignment of international codes and standards for wind loading.

• Proceedings of the Korean Operations and Management Science Society Conference
• /
• 2000.04a
• /
• pp.441-444
• /
• 2000

본 연구에서는 분류된 5가지 행정모델을 이용하여 현재 국내 행정모델의 특성을 추출하고, 아울러 행정모델의 전환에 대하여 논의하게 되며, 이를 통하여 한국 행정은 기계적 행정모델에서 네트워크 행정모델로의 이행 시점에 있음을 밝히고자 한다. 네트워크 행정모델 하에서는 지식, 정보, 자료, 멀티미디어 등을 통합한 개념인 Contents가 다양하게 공유되는데, 이 중에서 공유 및 활용의 효과가 가장 큰 것이 지식이다. 네트워크 정부모델 하에서는 지식의 의존도가 그만큼 높아지게 된다. 따라서 지식을 효율적으로 이용하기 위한 방안으로 Knowledge Portal 개념을 도입하여 행정지식을 사용자 관점에서 분류하고, 이를 통하여 Personalization 전략과 Codification 전략의 상호 보완적인 활용이 가능함을 제시한다. 아울러 지식 기반 행정의 구축을 위해서는 제도의 변화가 필요하며, 이러한 제도 중 성과측정 분야를 집중적으로 논의하게 되며, 이를 위하여 Balanced Scorecard의 개념을 도입하여 행정대상, 행정주체, 예산, 학습의 균형적인 성과측정 방안에 대하여 논의하고자 한다.

• Wind and Structures
• /
• v.3 no.4
• /
• pp.255-266
• /
• 2000

Wind-induced interference effects on a building are the result of one or more adjacent buildings modifying the flow of wind around it, which may result in a significant increase or decrease in wind loads on the building. Wind loading standards and codes of practice offer little guidance to the designer for assessing the effects of interference. Experimental results on interference effects indicate that code recommendations may be significantly low (unsafe) or uneconomically conservative. The paper presents results of an extensive experimental program to study the wind flow mechanisms and to quantify the extent of wind load modifications on buildings due to interference effects. These results have been simplified and presented from the point-of-view of design and codification for the case of two buildings. Based on these results, general guidelines and limiting conditions defining wind interference are formulated and discussed.

• Journal of Korean Philosophical Society
• /
• no.93
• /
• pp.121-148
• /
• 2011

The uncodifiability thesis in anti-theory argument is the typical claim for the impossibility of ethical theorizing. Based on this thesis reflecting particularism strongly, contemporary anti-theorists in ethics argue that individual decisions in particular situations cannot be codified into moral principles. The uncodifiability thesis needs to be examined by the following two issues: a theoretical issue of whether the object of codification is moral practices or not; and a practical one of whether moral principles present the decision procedure of moral reasoning or not. The characteristics of practical reasoning show that the object of codification in ethics, as moral theorists insist, is not moral practices but morality itself. Also moral theorists, contrary to the criticisms of anti-theorists, insist that moral reasoning is comprised of not only moral principles but also moral judgments with contextual knowledge and moral wisdom. In brief, moral theorists make a persuasive response to the uncodifiability thesis when they do neither intend to codify moral practices into moral principles nor to deduce the moral reasoning from moral principles. For them moral judgments should be examined by the moral principles which present universal and idealistic morality.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.12 no.5
• /
• pp.2416-2424
• /
• 2011

This study focused on the transition from modularity of a mechanical construction system to the seriality in a digital production system in architecture and arguing how digital design process affects the design of surface in the contemporary architecture and development of digital technology actively intermediate surface of architecture and expressive characteristics of media on surface. The analysis of two exhibition facilities of Herzog & de Meuron expose process of fabrication in the surface design and makes possible to implementation of the concept of code to seriality which shows images employed to reveal immediate representation of the perceptual communication with humans and architecture through the role and significance of digital design techniques.

• Journal of the Korea Computer Industry Society
• /
• v.4 no.4
• /
• pp.625-632
• /
• 2003

We are view of the information on VPN(Virtual private Network) into each difference layer protocol. network on mutuality exchanged of information is importance of the confidentiality and Integrity. But it is presented problems about compatability and availability between variable equipment as several protocol. hence, it was achieved of the transmission through encryption and authentication of information, although there is secured an intended attack from the third intruder. so tunneling VPN system on achieving, each layer position transmit of mutuality exchanged. This study will investigate the codification and certified security status when layer2 and layer 3 informations are each transmitted using protocol with integrity Public Key. In addition, we will using protocol and the performance analysis difference between layers and layers.

• Wind and Structures
• /
• v.5 no.6
• /
• pp.493-514
• /
• 2002

Seven hip roof building models for $10^{\circ}$, $15^{\circ}$, $20^{\circ}$, $25^{\circ}$, $30^{\circ}$, $35^{\circ}$ and $40^{\circ}$ roof pitch with large overhangs of 1.1 m were tested in a wind tunnel at the university of Roorkee, India to investigate wind pressure distributions over hip roofs for various roof pitch and wind direction. The results show that the roof pitch and wind direction do significantly affect the magnitude and distribution of the roof pressures. The $40^{\circ}$ roof pitch has been found to experience the highest peak suctions at the roof corners amongst the seven hip roofs tested. Pressures on $15^{\circ}$, $20^{\circ}$ and $30^{\circ}$ hip roofs are comparable with those reported by Xu and Reardon (1998). Meecham et al. (1991) for $18.4^{\circ}$ hip roof is compatible with $15^{\circ}$ hip roof of the present study. Holmes's works (1994) on gable roof have also been compared with the present work. Zoning for codification has also been attempted since IS875 (Part-3) does not include this information. A comparison for design value has also been made with BRE Report No. 346.