• Title/Summary/Keyword: VE

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The Application of TRIZ for Development of Creative VE(Value Engineering) Project process (TRIZ를 활용한 창의적 VE(가치공학) 프로젝트 프로세스 개발)

  • Kim, Chang-Hui;Ryu, Ji-Cheol;Kim, Gwang-Su
    • Proceedings of the Safety Management and Science Conference
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    • 2010.11a
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    • pp.191-198
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    • 2010
  • 본 논문은 원가절감과 신제품 개발에서 사용되고 있는 VE(Value Engineering)중에서 기능을 높이거나 원가를 낮출 수 있는 아이디어 발상단계에서 TRIZ를 적용하는 것에 대한 기법 개선 연구이다. VE는 미 국방성에서 시작되어 지금은 거의 모든 산업분야에서 적용하고 있는 관리.기술 향상을 위한 혁신 tool이다. TRIZ(Theory of Inventive Problem Solving) 는 러시아 과학자 알트슐러에 의해서 만들어진 창조적 아이디어 발상을 도와주는 아이디어 발상 Tool이라고 할 수 있다. 수 십 만 건의 특허를 분석해서 40가지의 발명원리를 도출해내어 체계적으로 정립한 파워풀한 아이디어 발상 도구 인 것이다. VE활동 중에 원가 절감 또는 제품의 가치 극대화 시키는 아이디어 발상단계에서 TRIZ를 접목한다면 VE의 완성도와 성과가 더욱 높아 질 것이라고 판단된다. 지금 까지 사용해 왔던 브레인스토밍, NM법, 오스본 체크리스트 ${\ldots}$ 등의 아이디어 발상 기법도 훌륭한 방법이지만 좀 더 체계적이고 분석적이며 파워풀한 TRIZ 기법을 활용하여 VE 프로젝트 프로세스를 한 단계 발전시키는 계기가 될 것이다.

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Shaking table study of a 2/5 scale steel frame with new viscoelastic dampers

  • Chang, K.C.;Tsai, M.H.;Lai, M.L.
    • Structural Engineering and Mechanics
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    • v.11 no.3
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    • pp.273-286
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    • 2001
  • Viscoelastic (VE) dampers have shown to be capable of providing structures with considerable additional damping to reduce the dynamic response of structures. However, the VE material appears to be sensitive to the variations in ambient temperature and vibration frequency. To minimize these effects, a new VE material has been developed. This new material shows less sensitivity to variations in vibration frequency and temperature. However, it is highly dependent on the shear strain. Experimental studies on the seismic behavior of a 2/5 scale five-story steel frame with these new VE dampers have been carried out. Test results show that the structural response can be effectively reduced due to the added stiffness and damping provided by the new type of VE dampers under both mild and strong earthquake ground motions. In addition, analytical studies have been carried out to describe the strain-dependent behavior of the VE damper. The dynamic properties and hysteresis behavior of the dampers can be simulated by a simple bilinear model based on the equivalent dissipated energy principle proposed in this study.

Development of New Helmet using 2nd Look VE (2nd Look VE를 이용한 오토바이 헬멧 개발에 관한 연구)

  • Kim Kwang-So
    • Journal of the Korea Safety Management & Science
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    • v.8 no.1
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    • pp.145-164
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    • 2006
  • Value Engineering(VE) has been recognized by many companies as a powerful and innovative technical approach for cost down and improvement in function of product and service. VE is a discipline which use an organized, creative approach to achieve the required function at the lowest cost. For the Purpose of developing new product, at this paper used the method of 2nd look VE developing bike helmet, in the order of selecting target, function analysis and writing alternative. The development of Helmet by the process of VE job plan, achieve the cost reduction of 27 million won for developing new product with customer's need.

A Study on the Selection of the Optimum Railroad Line using VE-LCC Analysis (VE-LCC 분석을 통한 철도의 최적노선 선정방안 연구)

  • Shin Tae-Kyun;Son Seok-Ku;Lee Seung-Hoon;Koo Kyo-Jin;Hyun Chang-Taek
    • Proceedings of the KSR Conference
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    • 2003.05a
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    • pp.315-320
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    • 2003
  • Selecting a railroad line requires the comparative evaluation of various elements. As a systematic approach to this selection it will be necessary to apply the VE study and the LCC analysis. This study proposes a methodology for selecting the optimum line of the ralroad using VE-LCC analysis. The VE study is performed by following four steps : Information analysis, Function analysis, Alternative evaluation, and Optimum plan selection. The economics evaluation in VE study is using LCC analysis and Sensitivity analysis. Cost items in LCC analysis are classified into bridge, tunnel, rail, and earthwork. We could select the optimum alte-rnatives considering not only cost elements hut also various evaluation element in VE-LCC analysis. The synthetic evaluation process of relative value composition and weighted matrix evaluation

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A Study on the Hindrance Factors of the Productivity in Design VE Phase (설계 VE단계에서 발생하는 생산성 저해요소 분석 - '00공사 사옥 신축공사' 사례를 중심으로 -)

  • Choi, Ji-Hye;Sang, Jun;Kim, Ban-Seok;Kim, Ju-Hyung;Kim, Jae-Jun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.05a
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    • pp.178-179
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    • 2013
  • After the introduction of the design VE system in 1990s, based on the legal system has made a rapid growth. Also It is evaluated as qualitative growth. Despite this growth, VE effort can cause the occurrence of the risk. In this paper carried out to hindrance factor that decrease the productivity in VE phase for strategy to improve the utilization of basic data.

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BIM-Based VE Proposal Management Using Parametric Modeling (파라메트릭 모델링을 활용한 BIM기반 VE제안 관리 방안)

  • Kim, Dain;Choi, Jaehyun;Lee, Jin Gang
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2023.05a
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    • pp.163-164
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    • 2023
  • The technical proposal bidding system emphasizes the evaluation of the construction company's technical capabilities, with the aim of improving the quality and cost-effectiveness of the construction. However, in the VE analysis and proposal process for technical proposal bidding, the ideas are often reused from similar past construction projects, and the application of new construction technologies/methods is often lacking. Therefore, this study proposes a methodology for managing VE proposal information by integrating it into a BIM model using parametric modeling. This research developed database based on the existing VE proposals and new construction technology/method information from the Korea Institute of Civil Engineering and Building Technology. And by using parametric modeling, the proposed method integrate the VE database with BIM model. The methodology proposed in this study is expected to improve the reliability and effectiveness of VE-related idea proposals in technical proposal bidding.

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Improvement for Subject Selection using SWOT Analysis in the Design Value Engineering (설계VE에서 SWOT분석을 이용한 대상선정 개선방안)

  • Yun, Su-Won;Kim, Hong-Hyun;Min, Kyung-Seok
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2008.11a
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    • pp.872-876
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    • 2008
  • 설계VE 프로세스 과정 중 기능분석을 성공적으로 수행하지 위해서는 VE대상의 선정이 중요하다. 그러나 설계VE활동시 대상선정 단계에서 설계VE 집중검토대상을 선정해야 하지만 그 활용성이 미비하였으며, 활용방법에 어려움이 따랐다. 이에 본 연구는 대상선정을 명확하게 하여 차후 기능분석에서 효과적으로 반영할 수 있는 방안으로 SWOT분석을 제안하고자 한다.

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An Application of Value Engineering to Design-Build Projects at Design Development Phase (설계${\cdot}$시공일괄 사업의 실시설계단계 VE적용 방안에 관한 연구)

  • Jung Jae-Jin;Kim Jae-Hyun;Koo Kyo-Jin;Hyun Chang-Taek
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.294-298
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    • 2003
  • Recently, Design-build project as delivery system public construction sector tends to be increased according to the Masterplan for promotion of construction technologies, and construction projects are increasing their complexity, variety and scale. And owner's requirements become various. Preliminary design for design eligibility judging of design-build has been designed excessively to get a good point and this tendency includes the elements which is capable of wasting the budget. Because of excessive design, owners require to apply VE study into the design development phase but in the Design-build system, VE application has not been of no effect that owners expect, owing to the characters of lum-sum contracts. The purpose of this study is to propose the plan for effective application of VE in the design development phase in order to solve the problems such as excessive design of preliminary design in the design-build project. This study established plans for VE application through investigating and analyzing VE application case and then proposed the applications in the aspect of regulations and contracts, parties participated in project, VE operation through research for verification of usefulness.

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Aerodynamic Characteristics, Vocal Efficiency, and Closed Quotient Differences according to Fundamental Frequency Fixation (음도 고정 유무에 따른 공기역학, 음성효율성 및 성대접촉률 차이)

  • Kim, Jaeock
    • Phonetics and Speech Sciences
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    • v.5 no.1
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    • pp.19-26
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    • 2013
  • The aerodynamic characteristics (subglottal pressure (Ps) and mean airflow rate (MFR)), fundamental frequency (Fo), intensity (I), vocal efficiency (VE), and closed quotient (CQ) were compared during a sustained vowel /o/ sound under three conditions: in a comfortable loudness and pitch level (condition 1), in a maximum loudness level with a fixed pitch (condition 2), and in a maximum loudness level without a fixed pitch (condition 3). Also, multiple regression analyses were done to measure the aerodynamic characteristics affect on the VE and the CQ in each condition. The results showed the Fo, Ps, MFR, VE, and CQ increased as I increased with and without fixed pitch. Most notably, VE in condition 3 was the highest of all the conditions, but CQ was not very high. By the results of multiple regression analysis, VE was significantly affected by I and Ps in all conditions; Fo was the other main key for affecting VE in high pitch. However, none of the aerodynamic characteristics significantly affected CQ. As I increases, Fo should be increased by increasing Ps and VE. Therefore, researchers should consider and specify an a priori to Fo, Ps, and I when measuring VE to examine the complex and delicate vocal mechanism.

Relationships between Muscle α-Tocopherol Concentrations and Metmyoglobin Percentages during Display of Six Muscles of Japanese Black Steers

  • Muramoto, T.;Shibata, M.;Nakanishi, N.
    • Asian-Australasian Journal of Animal Sciences
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    • v.17 no.7
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    • pp.1014-1018
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    • 2004
  • Relationships between muscle $\alpha$-tocopherol oncentrations and metmyoglobin percentages during display of six muscles, m. serratus ventralis (SV), m. psoas major (PM), m. gluteus medius (GM), m. semimembranosus (SM), m. semitendinosus (ST) and m. longissimus lumborum (LL), of Japanese Black steers slaughtered at 28 months of age were studied. Steers were supplemented with 0, 2,000 and 4,000 mg $\alpha$-tocopheryl acetate/head/day for 28 days prior to slaughter in the VE 0, the VE 2,000 and the VE 4,000 groups, respectively. $\alpha$-Tocopherol concentrations in PM, GM, SM, ST and LL of the VE 2,000 and the VE 4,000 groups were significantly (p<0.05) higher than those of the VE 0 group. There were no significant (p>0.05) differences in $\alpha$-tocopherol concentrations in all muscles between the VE 2,000 group and the VE 4,000 group. The muscle $\alpha$-tocopherol concentrations ($\ell$/g meat) which can retard metmyoglobin formation in muscles were estimated to be 5.3 for SV, 4.5 for PM, 4.2 for GM, 4.0 for SM, 3.6 for ST and 3.5 for LL. The equation to predict color-shelf-life of each muscle from the $\alpha$-tocopherol concentration in each muscle could be obtained.