• Title/Summary/Keyword: Korea Design Standard

Search Result 3,774, Processing Time 0.033 seconds

Effects of the Number of Hooked Bars on Anchorage Conditions at Exterior Joints (외측 보-기둥 접합부의 정착 상태에 관한 훅크철근의 영향)

  • Choi, Ki-Bong
    • Journal of the Korea institute for structural maintenance and inspection
    • /
    • v.1 no.2
    • /
    • pp.151-156
    • /
    • 1997
  • An experimental study was performed on the pull-out behavior of 90-deg standard hooks from exterior beam-column connections. The effects of the number of hooked bars of joint area were investigated. Under the pull-out action of hooked bars, the damage and cracking of joint area tends to be more extensive as the number of hooks pulling out from a joint increases. The pull-out strength and post-peak ductility of hooked bar are adversely influenced by the increase in number of hooks pulling out from an exterior joint. Current hooked bar anchorage design guidelines may be improved by considering the effect of the number of hooked bars on anchorage conditions at exterior joints.

  • PDF

Evaluation of U-Zr Hydride Fuel for a Thorium Fuel Cycle in an RTR Concept

  • Lee, Kyung-Taek;Cho, Nam-Zin
    • Proceedings of the Korean Nuclear Society Conference
    • /
    • 1998.05a
    • /
    • pp.52-57
    • /
    • 1998
  • In this paper, we performed a design study of a thorium fueled reactor according to the design concept of the Radkowsky Thorium Reactor (RTR) and evaluated its overall performance. To enhance its performance and alleviate its problems, we introduced a new metallic uranium fuel, uranium-zirconium hydride (U-Zr $H_{1.6}$), as a seed fuel. For comparison, typical ABB/CE-type PWR based on SYSTBM 80+ and standard RTR-type thorium reactor were also studied. From the results of performance analysis, we could ascertain advantages of RTR-type thorium fueled reactor in proliferation resistance, fuel cycle economics, and back-end fuel cycle. Also, we found that enhancement of proliferation resistance and safer operating conditions may be achieved by using the U-Zr $H_{l.6}$ fuel in the seed region without additional penalties in comparison with the standard RTR's U-Zr fuelr fuelel

  • PDF

Design and Implement of Self-Directed LMS for SCORM Standard Web-Base Content (SCORM 표준안에 적용된 Web-Base Content의 자기주도형 학습을 지원하기 위한 LMS 설계 및 구현)

  • Kim, Yun-Su;Kim, Seok-Soo;Lee, Jae-Cheol
    • Annual Conference of KIPS
    • /
    • 2002.11a
    • /
    • pp.247-250
    • /
    • 2002
  • In this paper, We are design & implement to the LMS(Learning Management System) including SCORM standard for effective reusing and management of each digital contents. This system is composed XML based meta-data manager, SQL server and ASP for LMS application, which are the user directed teaming system within effective reusing and management of each digital contents.

  • PDF

Empirical Study of High Quality Solar Salt Production System (고품질 천일염 생산공정의 실증연구)

  • Han, Jae Woong;Kim, Hoon;Kim, Woong;Lee, Hyo-Jai
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.21 no.9
    • /
    • pp.128-133
    • /
    • 2020
  • This study was conducted to demonstrate the manufacturing process for producing high-quality solar salt. The design criteria of the manufacturing process, which was studied in a previous study, was applied to an actual manufacturing system to evaluate its performance. The design factors applied were the drying air temperature and the temperature of the washing water. They were 100℃ or less and 10℃ or less, respectively. Two standards were applied to the process performance evaluation. Standard (I) was the international food standard for solar salt, and standard (II) was the quality standard for high-quality solar salt production. The main quality evaluation items were the moisture content and salinity, and the color characteristics were also measured (p<0.05). The manufacturing process of solar salt consisted of five steps, and the quality change was measured for each step. The measured quality was appropriate to the standard (I) from the third-step process. In addition, the quality of the high-quality solar salt was suitable for the standard (II) from the fourth-step process. Therefore, the performance of the proposed solar salt production process met international standards. The improvements in the production of high-quality solar salt will improve international competitiveness in the future.

A Study on the Improvement of Aquaculture Certification System to Meet Greater Retailer's Supplier Assesment Requirement (대형마트 공급자평가에 대응하기 위한 수산양식장 인증제도 개선에 관한 연구)

  • Seo, Jong-Seok;Seo, Won-Chul;Ock, Young-Seok
    • The Journal of Fisheries Business Administration
    • /
    • v.45 no.1
    • /
    • pp.33-47
    • /
    • 2014
  • The purpose of this study is to find method to meet the greater retailer's supplier assessment requirement So, this study analyze the greater retailer's requirement for supplier assesment and research global standard which is used instead of supplier assessment requirement that is recognized by global retailers initiative. Next, this study analyze domestic aquaculture certification requirement and compare the global standard with the domestic requirement by using The Most Similar Systems Design. As a result, this comparing has founded all of two domestic certifications are similar to global standard's Good Aquaculture Practice module but those are a little bit different from System Element module. Therefore, this study suggest tree alternative. First, make up for the weak points in the current domestic aquaculture certification system. Second, the introduction of global aquaculture management system certification as supporting by government. Third, development of new standard in accordance with global food standard. This study has major implications for research into development of domestic aquaculture standard.

A Case Study on Proprietary Standard Success : Lessons from Strategic Approaches of Apple's iPhone (독자적 기술 표준의 성공 사례 연구 : 애플의 아이폰에 관한 전략적 측면을 중심으로)

  • Chung, Do Bum;Kwak, Jooyoung;Lee, Heejin
    • Knowledge Management Research
    • /
    • v.14 no.3
    • /
    • pp.37-54
    • /
    • 2013
  • Technology standards have gained importance as global market becomes more competitive. Since a technology acknowledged as a standard brings significant benefits to the developer firm, firms in the IT industry tend to pursue standardization for the technology, being it proprietary or open. However, the paths or strategic implications are seldom discussed in academia. Therefore, our study uses iPhone of Apple, one of the proprietary standards successes, to further understand corporate strategies over two standard choices. Our case study suggests that iPhone's entry timing was optimal for creating a new mobile environment. Design excellence and user-friendly interface increased networking effects and switching costs among consumers. Apple developed independent mobile operating system (iOS) through improvement on the existing operating system. During the process, Apple chose proprietary standard and, by installing the same UX on its sibling products such as iPod Touch or iPad, overcame the subsequent problems that might arise from the limited use of iOS. Based on the capability of concurrently developing both hardware and software, Apple connected operating system, machine, and contents, which deems to contribute to its proprietary standards success. We argue that this strategy should be considered for firms which plan proprietary standard strategy.

  • PDF

Effects of Sex Communication with Friends and Sexual Double Standard on Contraceptive Self-efficacy among University Students (친구와의 성 의사소통, 성 이중기준이 대학생의 피임 자기효능감에 미치는 영향)

  • Kim, Junghyo;Park, Mikyung;Cho, Euna
    • Women's Health Nursing
    • /
    • v.24 no.1
    • /
    • pp.14-23
    • /
    • 2018
  • Purpose: To determine the effect of sex communication with friends and sexual double standard on contraceptive self-efficacy among university students. Methods: With a survey design, data were collected from 251 university students from three universities in G city from September 2016 to October 2016. Data were analyzed by descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, and stepwise multiple regression. Results: Sex communication with friends, sexual double standard, and contraceptive self-efficacy scores of participants were $58.82{\pm}8.78$, $21.73{\pm}6.00$, and $44.20{\pm}5.91$, respectively. Sex communication with friends and sexual double standard were related to contraceptive self-efficacy. Sexual double standard, sex communication with friends, female, contraceptive education, and contraceptive experience explained 33% of contraceptive self-efficacy of participants. Conclusion: Sexual double standard and sex communication with friends were influencing factors of contraceptive self-efficacy. To improve contraceptive self-efficacy of university students, a program is needed to eliminate sexual double standard and improve sex communication with friends among university students in Korea.

A Study on the Recognition of Green Standard for Energy and Environmental Design(G-SEED) from the Survey of Multi-complex Residents in Newtown (신도시 공동주택 거주자 대상의 녹색건축 인증제도 인식도 조사 및 분석)

  • Mok, Seon-Soo;Park, Ah-Reum;Cho, Dong-Woo
    • KIEAE Journal
    • /
    • v.13 no.6
    • /
    • pp.23-28
    • /
    • 2013
  • Green Standard for Energy and Environmental Design(G-SEED) has been used for environmental friendly building certification since 2002. The certification criteria initialed with multi-residential building and now it expands to 10 criteria for new and existing building types. The purpose of this study is to understand current recognition of G-SEED from the survey of multi-complex residences in newtown. From the general question, 75.2% of responders answered the period of living term between 1~3 years, 58.6% lived in $102.48{\sim}132.23m^2$ residential area and 65.2% owned their residences. The 43.2% of respondents recognized that their residences gained G-SEED certification by G-SEED emblem(31.6%). This is the significant meaning to understand public recognition of G-SEED and how to approach the strategy for raising the G-SEED recognition. The responders expected positive influence for economical value from G-SEED and also 75.3% of responders agreed with that G-SEED would be a decision make to buy and rent their residences. Second, residents responded that the consideration issue for green building is energy & prevention of environmental pollution(27.7%) which carries equal concern in G-SEED criteria category. The result of this survey verifies that the current level recognition of G-SEED of the responder's perspectives still is not well-known but it confirmed they have a positive expectation. Therefore, from this result, G-SEED needs to draw road map with detail plans for developing G-SEED with public participation.

A Study on the Analysis of Space Arrangement in 'Standard Korea Traditional-Houses Design' (한옥표준설계도의 평면도 공간배치 분석에 관한 연구)

  • Hwang, Yong-Woon
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.20 no.6
    • /
    • pp.579-586
    • /
    • 2019
  • The object of this study are 32 floor plans types of "Standard Korea Traditional-Houses Design=SKTHD.". The purpose of the research was to enhance the satisfaction level of users by comparing and analyzing the characteristics of the SKTHD. Research decision : 1. It tried to accommodate modern life by including space elements of modern housing, such as the 'entrance space', in the SKTHD. 2. The SKTHD. also favored the southern layout of living rooms and entrance spaces. 3.The number of bedrooms was generally planned to be two to three and it was judged that more various space and bedroom were needed to hold various functions of rural areas. 4. It has been analyzed that the depth of space is deeper to enter the entrance space(E)' than to enter from Thet-maru(TM). And as the depth of space in the Master bedroom is related to personal privacy, it is needed that the depth of space should be sufficiently.

Analysis on the Problems of Construction Temporary Work through Review on Technology System

  • Park, Junmo;Kim, Okkyue;Kim, Jinlee;Lim, NamGi
    • International conference on construction engineering and project management
    • /
    • 2015.10a
    • /
    • pp.716-717
    • /
    • 2015
  • A construction temporary work is main process and importance trade section. A technology system of construction temporary has very low availability of field works and needs improvements in Korea as construction site has a quick response about new requirements. This study reviews literature researches and can verify that changes to a comprehensive technology system for construction site. In addition, it suggests a breakdown structure of new standards for temporary construction technology based on views of construction site managers. Meanwhile, temporary construction technology in Korea has changed with a specification of construction temporary work which had been revised in 2014. However, the revision is merely dividing the design and building off of construction temporary technology. It is lacking in many ways to change this in a new standard system for temporary construction technology. Henceforth, it needs to develop a standard system for temporary construction technology and a professional system that is appropriate for different purposes by detail trade sections.

  • PDF