• Title/Summary/Keyword: Draft system

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Evaluation of Seismic Performance Factors of Diagrid Structural System (다이아그리드 구조 시스템의 내진성능계수 평가)

  • Kim, Kyoung-Hwan;Ju, Young-Kyu;Kim, Sang-Dae
    • Journal of Korean Society of Steel Construction
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    • v.22 no.3
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    • pp.229-239
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    • 2010
  • As a new structural system, the diagrid system resists both gravity and lateral loads with diagonal columns. In current seismic design provisions, however, the response modification factor for a new structural system is not provided yet. ATC-63 provides a new methodology for defining various seismic performance factors, including the response modification factor. ATC-63 includes the collapse margin ratio in modifying the response modification factor, which can vary with many structural systems. In this paper, a non-linear static analysis and a dynamic analysis were conducted for four different diagrid models with 4-to 36-story heights. From these analyses, the response modification factor of the diagrid system was evaluated.

Determination of the Best Available Techniques Associated Emission Level(BAT-AEL) (최적가용기법 연계배출수준(BAT-AEL) 설정)

  • Seo, Kyungae;Bae, Yeon Joung;Park, Jae Hong;Shin, Dong Seok;Rhew, Doug Hee
    • Journal of Environmental Science International
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    • v.28 no.4
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    • pp.455-464
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    • 2019
  • BAT-AEL(Best Available Techniques Associate Emission Level) is the basis for establishing permissible emission standards for the workplace. Therefore, it is necessary to formulate a regulated BAT-AEL setting methodology that is generally applicable to all relevant industries. For the BAT-AEL settings, various factors should be considered such as the pollutants item, whether the workplace is subject to integrated pollution prevention and control, whether BAT is applicable, the basic data type, the emission classification system, and the suitability of the collected data. Among these factors, it is the most important factor to establish the classification system for the emitting facilities such that the emission characteristics of an industrial facility and its pollutants can be effectively reflected. Furthermore the target of the survey workplace should adhere to the BAT guidelines, even if it is a workplace that is subject to an the integrated environmental system. Certified data (SEMS, TMS, cleanSYS, WEMS, etc.) can be used to prioritize the classification system for the emission facility and the emission levels of pollutants. However, the self-measured data, daily logs, and questionnaire data from the workplace can also be used upon agreement of the relevant TWG. The collected data should only be used only when the facility is operating normally. Data that have been determined to be outliers or inappropriate validation methods should also be excluded. The BAT-AEL can be establish by adhering to the following procedure: 1) investigate all relevant workplaces with in the industry, 2)select workplaces for integrated management, 3)Identify BAT application, 4)identify whether BAT is generally applicable, 5)establish a classification system for emitting facilities, 6)collection available data, 7)verify conformity, 8)remove of outliers, 9)prepare the BAT-AEL draft, 10)deliberate, and 11) perform the confirmation procedure.

The Development History and Activation Measures of Commercial Arbitration System in Korea - With Respect to 40 Years or Korean Arbitration Law and Practice - (우리나라 상사중재제도의 발전연혁과 활성화 방안 - 한국 중재법 및 실무 40주년을 중심으로 -)

  • Lee, Kang-Bin
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.32
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    • pp.59-91
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    • 2006
  • The Arbitration Act of Korea was promulgated in 1966. Since the promulgation of Arbitration Act of Korea, consecutive amendments took place in 1973, 1993, 1997, 1999, 2001 and 2002. Among the various set of amendments, those of 1999 were designed to accommodate the UNCITRAL Model Law on international Commercial Arbitration of 1985. Korea has acceded to special international conventions on dispute settlement such as the New York Convention of 1958 and the Washington Convention of 1965. The Korean Commercial Arbitration Board(KCAB) administers the arbitration proceedings in accordance with its Arbitration Rules approved by the Korean Supreme Court. Since the establishment of the first Arbitration Rules in 1966. consecutive amendments took place in 1973, 1981, 1989, 1993, 1996, 2000 and 2004. The KCAB plans to enact the International Arbitration Rules, which will be available to disputing parties in addition to the KCAB Arbitration Rules. In 2005, arbitration applications received at KCAB recorded a historic high at 213 cases, an increase of 22% from 175 cases in 2000. But in 2005, the total amount involved in the arbitration cases decreases to US$ 129 million, a decline of 63% from US$ 346 million in 2000. The KCAB should take the following measures for activating the commercial arbitration system: the globalization of KCAB, the advertisement of arbitration system, the security of qualified arbitrators, and the enhancement of the secretariat service. In conclusion, the KCAB should make efforts for the development of the arbitration system and for the upgrade of customer satisfaction. Moreover the KCAB should make further efforts to grow into a global arbitration institution as well as strengthening relations with international arbitration institutions.

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Standardization Model and Implementation of Event Type in Real Time Cyber Threat (실시간 위협에서 Event 유형의 정형화 설계 및 구현)

  • Lee, Dong-Hwi;Lee, Dong-Chun;J. Kim, Kui-Nam
    • Convergence Security Journal
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    • v.6 no.4
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    • pp.67-73
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    • 2006
  • The method which research a standardization from real time cyber threat is finding the suspicious indication above the attack against cyber space include internet worm, virus and hacking using analysis the event of each security system through correlation with the critical point, and draft a general standardization plan through statistical analysis of this evaluation result. It means that becomes the basis which constructs the effective cyber attack response system. Especially at the time of security accident occurrence, It overcomes the problem of existing security system through a definition of the event of security system and traffic volume and a concretize of database input method, and propose the standardization plan which is the cornerstone real time response and early warning system. a general standardization plan of this paper summarizes that put out of threat index, threat rating through adding this index and the package of early warning process, output a basis of cyber threat index calculation.

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Standard Operating Procedure of Tongue-image Analysis System to Improve the Reliability (설진기 시스템의 혀 영상 획득과정에 대한 표준운영절차 제안)

  • Lee, Hyun-Joo;Kim, Su-Ryun;Nam, Dong-Hyun
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.20 no.2
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    • pp.51-65
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    • 2016
  • Objectives This study was conducted to suggest a standard operating procedure (SOP) in order to improve the reliability of tongue-image analysis system. Methods An affecting-factors list was made, which may affect the diagnostic parameters of the tongue-image analysis system. They were sub-classified into two groups: controllable and uncontrollable. Only the controllable factors, which could affect the results and easily set-up, were included into the SOP draft. Affecting factors control experiment was performed to investigate the effects of controllable factors, whose influence on diagnostic parameters of the tongue-image analysis system is ambiguous: rehearsal for tongue extrusion; alignment of camera axis; and presentation of a guideline. Three subjects volunteered for this experiment. Each of three variables was implemented twice in a random order by two operators on the subjects. Finally, 96 tongue images obtained in the aggregate. The diagnostic parameter set as a primary outcome in this experiment was the percentage of tongue coating. Results All of the control variables were not significant in both operators; however, the presentation of a guideline was relatively more affect than two other variables. Interaction effects among the variables were also insignificant. Therefore, the presentation of a guideline was included in the final SOP and the other variables were not included. Conclusions We suggested the SOP which could be used for both experimenter and subject. Moreover, Each of the SOPs applied to various types of tongue-image analysis system should be developed in order to improve the reliability.

Reliability Investigation of a Pump-Turbine System at Various Operating Conditions (운전조건에 따른 펌프 터빈 시스템의 안정성 연구)

  • Chen, Chengcheng;Singh, Patrick Mark;Choi, Young-Do
    • The KSFM Journal of Fluid Machinery
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    • v.18 no.3
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    • pp.46-52
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    • 2015
  • Pump-turbine system is widely used by the hydropower industry for stabilizing the electrical grid in the vast growing economy of most developed countries. This study only investigates the Fluid-structure Interaction (FSI) analysis of the pump-turbine system at various operating conditions. The FSI analysis can show how reliable each component of the system is by providing the engineer with a better understanding of high stress and deformation points, which could reduce the lifespan of the pump-turbine. Pump-turbine components are categorized in two parts, pressurized static parts and movable stressed parts. The fixed parts include the spiral casing, top and bottom cover, stay vane and draft tube. The movable parts include guide vanes and impeller blades. Fine hexahedral numerical grids were used for CFD calculation and fine tetrahedral grids were used for structural analysis with imported load solution mapping greater than 90 %. The maximum equivalent stress are much smaller than the material yield stress, and the maximum equivalent stress showed an increasing tendency with the varying of operating conditions from partial to excessive at both modes. In addition, the total deformation of all the operating conditions showed a small magnitude, which have quite small influence on the structural stability. It can be conjectured that this system can be safely implemented.

Design of Wave Energy Extractor with a Linear Electric Generator -Part I. Design of a Wave Power Buoy (선형발전기가 탑재된 파랑에너지 추출장치 설계 -I. 파력 부이 설계)

  • Kim, Jeong Rok;Bae, Yoon Hyeok;Cho, Il Hyoung
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.17 no.2
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    • pp.146-152
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    • 2014
  • Design procedure of WEC (wave energy converter) using the heaving motion of a floating cylinder-type buoy coupled with LEG (linear electric generator) system is introduced. It is seen that the maximum power can actually be obtained at the optimal conditions ($c_{PTO}=b_T$, ${\omega}={\omega}_N$). Then, based on the developed theory, several design strategies are proposed to further enhance the maximum PTO (power take off), which includes the intentional mismatching with the heave natural frequency, which is 15% higher value than the peak frequency of input velocity spectrum. By using the intentional mismatching strategy, the generated power is actually increased and the corresponding draft as well as the required PTO damping value is significantly reduced, which is a big advantage in manufacturing the WEC with practical LEG (linear electric generator) system.

Case Study about BX(Brand Experience) Design System Development -Focusing on JUNGGANEGOTGAN Brand- (브랜드 경험(Brand Experience)디자인 시스템 개발사례 연구 -'정가(家)네곳간' 브랜드 개발사례 중심으로-)

  • Kim, Sung-Jae
    • The Journal of the Korea Contents Association
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    • v.18 no.11
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    • pp.38-46
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    • 2018
  • This study is about brand design system development cases based on BX, focusing on research of JUNGGANEGOTGAN brand conducted from January 2018 to April. BX is a subjective and internal response of consumers arising from design stimulus including brand identity. BX design is brand-related stimulus based on brand experience and BX is generated when stimulant of brand design and consumers' contacting with brand are interacting. The most important thing of BX design system is that BX design system plays a very important role when consumers choose goods or services of some brand at the various touch points of brand in the process that consumers form the certain brand image. This study suggests the final completed brand design draft plan along with brand design system development strategy conducted about JUNGGANEGOTGAN based on BX design. As a result, modeling and associations of JUNGGANEGOTGAN brand experience design seem to be statistically meaningful (F=30.961, p<.001). Preferences of brand design is rated by modeling (=.443, p<.001), associations (=.218, p<.001) in order and it turns out to be affected.

The Development and Application of the Performance Indicator for Sewage System Service in Korea (하수도서비스 평가지표 개발 및 적용에 관한 연구)

  • Ahn, Young Mi;Kim, Duk-Jin;Yoon, Hyun Shik;Kim, Young Jo;Yoo, Man Sik
    • Journal of Korean Society of Water and Wastewater
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    • v.21 no.4
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    • pp.453-465
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    • 2007
  • With rapid expansion of the water market and growth of water companies, the recent trends in international water industry show that standardization of service activities concerning management of water and wastewater system (ISO/TC 224, to be issued in the second half year of 2007) is expected to have a large influence on the global water market including liberalization of water service market. In the Draft International Standard(DIS) of ISO/TC224, Performance Indicators(PIs) are suggested to estimate the service activities relating to water and wastewater treatment facilities. PIs have been developed in many countries including some international organization(World Bank, IWA and etc.) for service benchmarking. To evaluate public service level and establish plans to improve service level of wastewater utilities, we developed PIs for 120 items and applied them to 10 sewage utilities in the consideration of their scales, circumstances and conditions. In this study, we verified the applicability of the developed performance indicators(PIs). So, we concluded that PIs developed for the purpose of this study can be a useful tool applicable to objective evaluation of the service level of sewage utilities. Using the evaluation tool of PIs developed, it can also be used as a benchmarking tool in this industry as well as for enhancing the efficiency of operation and management of the sewage system. It will also contribute to the water resource management through determination of investment priorities based on the evaluation results and to raising international competitiveness of the domestic sewage utilities to meet the future opening of the water market.

Establishment of Dimension System for Obese School Age Children - Focusing on 3-5 Grade Elementary School Boys in Seoul Metropolitan City - (학령기 비만아동의 치수 체계 정립 -서울지역 초등학생 $3{\sim}5$차년 남아 중심으로-)

  • Kim, Min-Jung;Park, Sun-Kyung
    • Journal of the Korean Society of Costume
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    • v.59 no.3
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    • pp.67-81
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    • 2009
  • Body shape of a child in elementary school is distinguished by physical differences in the form of low weight, normal weight and obesity, which are influenced by various periodic environments. In particular, there are hardly any patterns for obese children in elementary school to choose. To this end, the purpose of this study is to supplement the problems with the production lines of the companies for children's patterns as well as an analysis on the physical characteristics of obese children and to suggest the patterns appropriate to obese children. This study employed obese children from the 3rd- to 5th-grade elementary school students whose number has been rapidly increasing and conducted a questionnaire regarding the draft of the patterns for obese children on their mothers and the makers of children's clothing. Based on the results, the study compared and analyzed ordinary children's patterns to the patterns in question by suggesting a dimension system for Korean obese children. The results are as follows. The obesity rate of the children in elementary school has been grown in significant numbers every year, whereas obese children's sense of self-identity and degree of satisfaction with their patterns appeared to be much lower than other ordinary children in the peer group; also, the satisfaction level their mothers with their children's patterns appeared to be low. In order to verify the degree of the children's satisfaction with their patterns, the study suggested a dimension system for the obese children and displayed appropriateness by comparing the children patterns from ordinary companies and the patterns in question.