• Journal of the Korean Society for Precision Engineering
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• v.17 no.12
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• pp.129-136
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• 2000

In the frontal collision the spot welded hat-shaped section side member is the fundamental structure for automobiles and has a great amount of absorbing capacity. For this reason LS-DYNA3D has been used for analyzing impact collapse characteristics on hat shaped section member with respect to the valuables; thickness, width ratio and spot weld potch on impact load(7.19m/sec, 1034J). By comparing the results from simulation and the experimental results, the utilization of simulation has been certified.

• Proceedings of the Korea Concrete Institute Conference
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• 2004.05a
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• pp.84-87
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• 2004

Nominal flexural strength of RC members strengthened with FRP sheets is generally based on the tensile strength of composite materials obtained from coupon tests. This method is based on the assumption that bond failure does not occur until the FRP sheet reaches its rupture strength. According to the previous researches, however, bond failure often occurs before the FRP sheet reaches its rupture strength. Some attempts were made to control debonding failure by increasing the bonded length of sheet or wrapping the section around their side of the member(U-wrap). In this study, the flexural failure mechanism of RC beams strengthened with AFRP sheets with different bond lengths is investigated. Their strengthening details to prevent the premature debonding failure are also suggested and its effectiveness is verified.

• The Journal of Information Technology
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• v.12 no.1
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• pp.1-13
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• 2009

Ubiquitous society education students, teachers, parents, and educational administration systems, learning tools, and things connected to this one because it provides a learning environment in education for each student to determine their characteristics and needs, and even provide the required services for each student can. In other words, students and teachers within the school to concentrate on education and research activities of the intelligence service is the latest. The future of the ubiquitous era of ubiquitous era of education the future of the education side of the current lack of education to complement the new era of human resources required to foster a positive alternative to bear fruit for all members of our community's interest and commitment, wisdom and education officials, This will be together.

• Proceedings of the Korea Information Processing Society Conference
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• 2001.10b
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• pp.1481-1484
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• 2001

Most implementations of HTTP servers do not distinguish among requests for hypermedia data from different clients. Commercialization of Web site is becoming increasingly common. Therefore providing quality of service with members paying to the site is often an important issue for the hosts. For some uses, such as web prefetching or multiple priority schemes, different levels of service are desirable. We propose server-side TCP connection management mechanisms to provide two different levels of Web service, high and regular levels by setting different timeout for inactive connection. Therefore this mechanism can effectively provide different service classes even in the absence of operating system and network support.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2000.04a
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• pp.337-341
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• 2000

In recent years, electronic commerce (EC) business has shown a tremendous growth, which put additional cognitive and time-consuming loads on the human users. Intelligent software agents are one key technology to support users doing real EC-business.We propose an Agent-based Business-to-Business(B2B) Marketplace on Internet, where constituent members cooperate or compete in order to get the best possible deals, with the aim of reducing user loads.In case of B2B deals, the good itself shows a complicated behaviour, e.g.price discounts depending o the lot, discounts for cross-buying and so on. It is impractical to concentrate all the knowledge about the goods and the trading strategies at the buyer/seller side. Instead, we include such information in the good itself, which allow us to model the goods as being agents.

• Asian Oncology Nursing
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• v.10 no.1
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• pp.19-29
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• 2010

Purpose: The purpose of this article was to review and discuss the current status, issues, and nursing perspectives of cancer survivorship. Methods: A comprehensive literature review was conducted. Results: The major areas of concern for the survivors included recurrence, secondary malignancies, and long-term treatment sequalae which affect their quality of life. The four essential components of survivorship are prevention, surveillance, intervention, and coordination. Cancer survivorship care plan should address survivor's long-term care, such as types of cancer, treatment modalities, potential side effects, and recommendations for follow-up. It also needs to include preventive practices, health maintenance and well-being, information on legal protections regarding employment and health insurance, as well as psychosocial services in the community. Survivorship care for cancer patients requires multidisciplinary efforts and team approach. Conclusion: Nurses are uniquely positioned to play a key role in ensuring quality services for cancer survivors and family members. Nurses should review the care plans for cancer survivorship with patients and families by instructing them when to seek medical treatment, promoting any recommended surveillance protocols, and encouraging healthy life styles for health promotion and quality of life.

• Steel and Composite Structures
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• v.6 no.2
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• pp.103-122
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• 2006

The capacity of tubular truss chords subjected to concentrated reaction forces in the vicinity of the open end (i.e., the bearing region) is not directly treated by existing design specifications; although capacity equations are promulgated for related tubular joint configurations. The lack of direct treatment of bearing capacity in existing design specifications seems to represent an unsatisfactory situation given the fact that connections very often control the design of long-span tubular structures comprised of members with slender cross-sections. The case of the simple-span overhead highway sign truss is studied, in which the bearing reaction is applied near the chord end. The present research is aimed at assessing the validity of adapting existing specifications' capacity equations from related cases so as to be applicable in determining design capacity in tubular truss bearing regions. These modified capacity equations are subsequently used in comparisons with full-scale experimental results obtained from testing carried out at the University of Pittsburgh.

• Journal of Ocean Engineering and Technology
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• v.9 no.1
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• pp.83-91
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• 1995

Surface defects in structural members are apt to be origins of fatigue cracks growth, which may cause serious failure of whole structures. Most structure has a part where stress concentrates such as welded joints, corner parts, etc. And then, analysis on crack growth and penetration from these defects, therefore, is one of the most important subjects for the reliability of LBB design. The present paper has performed an experimental and analysis on the fatigue crack propagation by variety in crack length of surface cracked plate with stress concentration part. The crack growth behavior can be explained quantitatively by using Newman-Raju equation and the stress partitioning method proposed by ASME B&P Code Sec. XI. The stress concentration factor $K_t$ has affected on the crack growth. The crack growth after penetration depends upon the initial front side crack length.

• Journal of the Korean Institute of Rural Architecture
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• v.16 no.1
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• pp.9-16
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• 2014

It is very hard to find out water mill and water mill house installed nearby a streamlet to use water to polish cereals by pounding like a visage of its old days. It plays an important part in folkloric, hydrographical and architectural aspects as important folklore material in Korea. The purpose of this study is to analyse the folkloric, hydrographical and architectural features of water-mill and water-mill house itself so that to find the way how to build and fabricate the materials and frame members. Therefore this study has been focused on the composition principle and fabrication method of water mill and water millhouse on the side of architecture.

• Transactions of the Korean Society of Automotive Engineers
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• v.21 no.5
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• pp.97-103
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• 2013

Crash performance of the straight member was studied by FE analysis. One end of model was fixed and the other end was impacted by 1,000kg rigid mass with velocity of 16.0m/sec. The maximum and mean load were discussed to compare crash performance. The members with various section shapes were analyzed and the flange location was changed. Also, spot weld points were added in the initial buckling region to investigate its effect. Final rectangular section model which has flanges at the center and reinforcement in initial buckling region showed high enhancement in crash performance.