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A Computer Program for 2-D Fluid-Structure-Soil Interaction Analysis (2차원 유체- 구조물-지반 상호작용해석 전산프로그램)

  • 김재민
    • Proceedings of the Earthquake Engineering Society of Korea Conference
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    • 2000.04a
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    • pp.427-434
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    • 2000
  • This paper presents a computer program for a 2-D fluid-structure-soil interaction analysis. With this computer program the fluid can be modeled by a spurious free 4-node displacement-based fluid element which uses rotational penalty and mass projection technique in conjunction with the one point reduced integration scheme to remove the spurious zero energy modes. The structure and near field soil are discretized by the standard finite elements while the unbounded far field soil are discretized by the standard finite elements while the unbounded far field soil is represented by the frequency dependent dynamic infinite elements. Sine this method models directly the fluid-structure-soil system it can be applied to the dynamci analysis of 2-D liquid storage structure with complex geometry. For the purpose of verification dynamic analyses for tanks on a rigid foundation and on compliant embankment are carried out. Comparison of the present results with those by ANSYS program shows good agreement.

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Manufacture of Rainbow-colored Veneer by Natural Dyeing

  • Suh, Jin Suk;Park, Ryeong Jae;Cho, Yeong Hee;Song, Eon Ja;Kim, Jong In;Park, Sang Bum
    • Journal of the Korea Furniture Society
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    • v.26 no.3
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    • pp.286-290
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    • 2015
  • The wood veneers were clearly rainbow-colored with natural dyes. As shown through Korean-style jacket with stripes of multi-colors beyond traditional obang colors (red, blue, yellow, black and white colors), eco-friendly coloring methods representing Korean colors familiar from old times could be used nobly by coloring natural wood veneer being raw material of wood products. In terms of industrialization, the study to manifest korean color, substituting chemical stains such as dye and pigment, would be necessary. In order to realize this purpose, the study about economical dyeing materials and characteristics, that is, mordant, dyeing and drying techniques showing environment-friendly coloring and high coloration level ought to be followed. In addition to this, investigating discoloration transition by fading test for interior and exterior uses would have to be carried out.

A Study on the Characteristic of the Thermal Environment in the Cooling System at the Apartment (공동주택 거실의 냉방방식에 따른 열환경 특성에 관한 연구)

  • 이무진
    • Journal of the Korean housing association
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    • v.10 no.4
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    • pp.111-120
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    • 1999
  • The purpose of this study is to evaluate the efficiency of the thermal environment created by the cooling system at the apartment that combines the forced convection cooling(the system reducing humidity from room) with the floor cooling radiation which uses the floor panel from floor heating system, a general residential heating system in Korea. In this study, the combined cooling system in which air supply, spurt temperature difference and interior draft are reduced, is compared with the existing forced convection cooling system. To identify the effect of the comparison concretely, a comparative experiment is carried out on tour conditions, ie, convection cooling, floor radiation convection cooling and floor radiation cooling. Through it the characteristical thermal environment formed within the model room is analyzed, and the conveying system of compressed floor chill and condensation problem are reviewed.

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Effect of Millennial Orientation on Intention to Leave with Engagement and Job Satisfaction

  • MEIZAR, Effendi
    • Journal of Wellbeing Management and Applied Psychology
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    • v.3 no.2
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    • pp.1-11
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    • 2020
  • Purpose: We explore to find out and analyze the direct influence of Millennial Orientation on Goals Mediated by work engagement and satisfaction. And, interaction cannot be a direct relationship between research variables. Method: The implementation uses the survey method. This research was conducted at PT. East Kalimantan fertilizer operated in Bontang, East Kalimantan. The population in this study were all employees of PT. East Kalimantan fertilizers operated in Bontang, as many as N = 500 people. The sampling technique used is proportional stratified random sampling. Findings: Millennial orientation influences engagement, job satisfaction and intention to leave, direct engagement has a significant effect on job satisfaction and intention to leave, and job satisfaction is directly related to intention to leave. Originality: Alignment between millennial goals in encouraging job satisfaction and employee engagement, so that it can have an impact on the intention to leave employees, especially at PT. Pupuk. Kaltim. Also, direct millennials as decreasing intention to leave.

A study of Performance Requirement for Energy-Regenerative Lift (회생에너지 재생시스템을 적용한 건설용 리프트의 요구성능 도출)

  • Won, Myeungkyun;Lim, Hyunsu;Lee, Myungdo;Cho, Hunhee;Kang, Kyung-In
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2011.05a
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    • pp.205-206
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    • 2011
  • Various studies on energy saving for construction sites have been carried out and some construction machines using motors have installed regenerative systems such as elevators and excavators. The construction lift also uses motors and generates more regenerative energy when the lifts descend because lifts convey many construction materials and workers. For this reason, it is possible to apply the regenerative system to the construction lift. However, if the system is applied without considering the lift's characteristics, the new development would fail; we therefore need to propose a performance requirement. Thus, the purpose of this study is to propose a performance requirement for the energy-regenerative lift prior to developing the energy-regenerative lift.

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Kinematic Analysis of Yeo Motion at Horse Vaulting (도마 Yeo동작에 대한 운동학적 요인 분석)

  • Yeo, Hong-Chul
    • Korean Journal of Applied Biomechanics
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    • v.13 no.1
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    • pp.39-50
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    • 2003
  • The purpose of this experiment was to find out the stages of result of specific character for Horse Vaulting Yeo motion To put the Yeo movement in process, we needed a gymnastics athlete C height of 165cm, weight of 62kg, age of 32, personal history of 21 years, and tested the athlete 5 times of motion training, and picked out the 2 best motion and analyzed it. Athletic reason is vertical motion, time uses, horizontal motion, distance, speed, and analyzed many other reasons as a result, and finally ended up with this conclusion. 1. After the take off on the board horizontal speed gradually decreased However, reverse of that, it showed that vertical speed increased. 2. While contacting the Horse Vaulting, horizontal speed decreased and vertical speed kept on increasing. Taking off Com the Horse Vaulting, horizontal, showing short time of training, 3m vertical height is shown after using Yeo motion at the peak of second fly jump. 3. While contacting the Horse Vaulting, both arms were showing the flection shape Especially this is also while contacting the Horse Vaulting, left arm was showing $90^{\circ}$ angle, and this has happened between the process of transition period of fast horizontal speed to vertical speed. 4. While contacting the Horse Vaulting, perfect blocking of the left arm must be complete for the right arm to have the perfect blocking as well.

Performance Evaluation of Vertical Wind Power Generation System Structured on the Downtown Buildings Roof (도심 빌딩 옥상에 적용 가능한 풍력발전시스템의 성능 평가 연구)

  • Nah, Chae-Moon;Chung, Kwang-Seop;Kim, Young-Il;Kim, Dong-Hyeok
    • Journal of the Korean Society for Geothermal and Hydrothermal Energy
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    • v.12 no.3
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    • pp.9-16
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    • 2016
  • This study had the purpose on feasibility judgment through performance forecast of wind power generation system using the cross flow vertical type wind power turbine for the situation of domestic small size wind power technology development. Wind power generation system uses the principle of venturi tube that gathers the wind through the first guide vane, and second guide vein changes the angle of the wind simultaneously by playing the role of venturi tube. After this, wind got out from the second guide vane spins the wind power turbine and has the meaning of judging on the aspect of numerical interpretation the feasibility for the small size wind power generation through wind power generation system that comes out from the back.

A Study of the Efficient Planning of Governance for Building Biomass Circulation Estate (바이오매스 순환단지조성을 위한 거버넌스 구축방안 연구)

  • Kwon, Goo-Jung;Lee, Su-Young;Hwang, Jae-Hyun
    • Korean Journal of Organic Agriculture
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    • v.22 no.4
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    • pp.561-579
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    • 2014
  • This research estimates the necessity of a better governance plan on the purpose of fulfillment energy recovery by building resource recycling system for biomass resources and waste resources that derive from agricultural and mountain village areas. The utilization of new renewable energy technology which uses waste and biomass sources diverse as variety of resources, collecting method, operator etc. and is structurally complicated the formation of policy is also very difficult. There is failure because of the problems which occurs from the policy led by government. Biomass Town Development Project should be made through the central government and the local government integrated support system and should be formed a consultative group in order to process the project mutually with these two department including the experts from the related areas. This consultative group, while government organizations carry out the hub function of strategic knowledge management, should carry out the control tower function to be able to be net working transfer the information with the cooperation of private and government so vitalize the communication area among the related actors. And to be able to increase the participation rate of the local people the consistent and various educations should be given so a smooth business promotion progress will be desired through the change of perception and coactive participation of people.

The effect of clinical practice belonging, satisfaction with major, and work values on career identity of nursing students (간호대학생의 실습소속감, 전공만족도, 직업가치관이 진로정체감에 미치는 영향)

  • Kim, Chang Hee;Kim, Jung Yee
    • The Journal of Korean Academic Society of Nursing Education
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    • v.26 no.3
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    • pp.259-268
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    • 2020
  • Purpose: This exploratory study aims to identify the influence of clinical practice belonging, satisfaction with major, and work values on the level of career identity among nursing students. Methods: The subjects of this study are 251 senior students from three nursing departments located in a metropolitan city. Using SPSS 22.0, the study uses technical statistics, t-test, One-way ANOVA, correlation, and multiple regression analysis. Results: The average scores for clinical practice belonging, satisfaction with major, and work values were 3.61, 3.87, and 3.70 out of 5.00, respectively, and 2.85 out of 4.00 for career identity. The factors affecting students' career identity were clinical practice belonging, aptitude, satisfaction with clinical practice, satisfaction with major, indoor work, service and employment at hospitals with 40 percent being explained by these variables. Conclusion: Through this study we found that clinical practice belonging has the greatest impact on career identity. In order to enhance clinical practice belonging, universities and clinical institutions need to develop new programs and curricula.

Factors Affecting the Market Share of Retailers: Evidence from Vietnam

  • PHAM, Hung Cuong
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.11
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    • pp.413-419
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    • 2020
  • This research focuses on the analysis of factors affecting the market share of retailers in Vietnam. This research uses Smith and Chaffey's (2005) 5Ss e-marketing model for analysis, which include Sell, Serve, Speak, Save, and Sizzle. Both quantitative and qualitative methods will be used to conduct the study. The researchers collected information from customers, managers, and directors in 25 retailers in Vietnam. A survey questionnaire was delivered to 15 people in each of the retailers who are customers, managers and directors. The researcher used the SPSS 16.0 software to analyze the data collected and in-depth interviews were carried out with the purpose of testing the hypothesis as well as the overall framework of the research. Out of the 375 questionnaires delivered, 360 were returned. The means of 23 items in the survey questionnaire ranged from 3.3733 to 4.3533 representing the outcome of the descriptive analysis. Research results showed that Cronbach's Alpha coefficient of five factors affecting the market share of the retailers is sizzle, save, sell, serve and speak. This research has proposed some implications for the market share of retailers, including technology enhancement for full message delivery, ways to approach target customers, and improving product diversity.