• 제목/요약/키워드: condition evaluation method

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굴절차량의 감속구동장치 연구개발 성과 (Development of Design method and Evaluation technology for Driving Gear Unit of Articulated Vehicles)

  • 이민수;김태형;김진완;김용기
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2007년도 춘계학술대회 논문집
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    • pp.13-19
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    • 2007
  • This study is to establish design method and evaluation technology for drive system appropriate to articulated vehicles. The transmission system of articulated vehicles serves in the other condition compared with those of commercial vehicles, namely, they have to transmit high power to run and they have to make maximum use of the limited space. This paper reports the reviews and results of the design and evaluation method for driving gear unit of articulated vehicles and discusses various design items and methods about assembly and parts of driving gear unit.

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틸팅차량용 감속 구동장치 연구개발 성과 (Development of design method and Evaluation technology of reduction gearbox for Korea High-speed Tilting Train)

  • 배찬권;차수덕;최진욱;신봉주
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2004년도 추계학술대회 논문집
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    • pp.334-341
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    • 2004
  • This study is to establish design method and evaluation technology for drive system appropriate to high speed tilting train. The transmission system of high speed train serves in the severe condition compared with those of KHST(G7), namely, they have to transmit high power to run with high speed and they have to make maximum use of the limited space. This paper reports the reviews and results of the design and evaluation method for reduction gearbox of high speed tilting train and discusses various design items and methods about assembly and parts of reduction gearbox.

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현장실험을 통한 바닥충격음 저감공법의 성능평가 및 중량충격음 저감 방안 (A Evaluation Study on Reduction Method of Floor Impact Noise through Field Test and the Effective Method for Heavy Impact Noise)

  • 이병권;배상환;홍천화
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2004년도 추계학술대회논문집
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    • pp.451-456
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    • 2004
  • In this study, evaluation was carried out for reduction method of floor impact noise through field test and the effective methods for heavy impact noise were proposed. As a field test, impact noise reduction materials such as EPP, EEPS, EVA, PE and so on, did not satisfied the recommandation value at the condition of 150mm thickness concrete slab. The evaluation results for those materials by 'inverse A curve' showed $53\sim55dB$ at heavy impact noise and $53\sim58dB$ at light impact noise. But, two methods proposed by authors were evaluated $47\sim50dB$ at heavy Impact noise and $54\sim58dB$ at light Impact noise on the similar concrete slab thickness.

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IMPROVEMENT OF WASTE ADMINISTRATION BY NEW PUBLIC MANAGEMENT

  • Kotomi Uemoto ;Seigo Nasu ;Shunji Kusayanagi
    • 국제학술발표논문집
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    • The 1th International Conference on Construction Engineering and Project Management
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    • pp.424-428
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    • 2005
  • As the application of NPM in waste administration branch this paper proposes a new waste management method in order to increase the efficiency of resources and reduce the quantity of waste. First the matrix method is suggested which comprehensively consider and integrate the proposals of different government departments. Moreover the inhabitant's attitude toward the new waste management measures was investigated. Based on the investigation the evaluation function was made, which include three elements: necessary budget, the effect of cost decrease and the environmental burden decrease. The optimal method of budget allocation to maximize social welfare is proposed under the condition of limited budget by the evaluation function. By applying this system further local governments will be able to determine their adequate service level and budget size.

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고속가공 시스템의 가공정밀도 평가방법에 관한 연구 (A Study on the Machining Accuracy Evaluation Method of High Speed Machining)

  • 손덕수;유중학;최성주;이우영
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2002년도 춘계학술대회 논문집
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    • pp.94-99
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    • 2002
  • KS and ISO have proposed several evaluation methods of conventional machine tools. Even though the accuracy of the tools can be evaluated with these methods, there are still no proper evaluation methods of high speed machining. Because it is hard to evaluate characteristics of high speed machining such as decrease of cutting temperature, cutting force, and reduced machining time. Therefore, new evaluation method for high speed machine should be developed. In this paper, several shapes of model have been proposed to evaluate cutting accuracy of high speed machine.

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신경망기법에 의한 칩브레이커의 성능평가 (Performance Evaluation of Chip Breaker Utilizing Neural Network)

  • 김홍규;심재형
    • 한국공작기계학회논문집
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    • 제16권3호
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    • pp.64-74
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    • 2007
  • The continuous chip in turning operation deteriorates precision of workpiece and causes a hazardous condition to operator. Thus the chip form control becomes a very important task for reliable machining process. So, grooved chip breaker is widely used to obtain reliable discontinuous chip. However, developing new cutting insert having chip breaker takes long time and needs lots of research expense due to a couple of processes such as forming, sintering, grinding and coating of product and many different evaluation tests. In this paper, performance of commercial chip breaker is evaluated with neural network which is learned with a back propagation algorithm. For the evaluation, several important elements(depth of cut, land, breadth, radius) which directly influence the chip formation were chosen among commercial chip breakers and were used as input values of neural network. With the results of these input values, the performance evaluation method was developed and applied that method to the commercial tools.

표준화된 방수기술 평가기법 개발 및 평가체계 구축 (Proposed Development and Evaluation System for Existing Standardized Waterproof Technology Assessment Methods)

  • 송제영;이선규;최은규;이정훈;김병일;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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    • pp.341-342
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    • 2018
  • Waterproofing materials and construction methods have been developed and applied to various construction sites since the past. However, there many cases where the waterproofing performance is not satisfactory, leading to continuous water leakage. It has been observed that a key reason for this is because waterproofing method and material selection is not optimized in terms of the appropriate application area and environmental degradation factors. This paper proposes that future selection of waterproofing methods should consider the following evaluation criteria; 1) waterproof performance evaluation according to site conditions, 2) evaluation of construction method, 3) manufacturing and maintenance of waterproofing systems.

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전술데이터링크 연동시스템의 개념적 소프트웨어 아키텍처 설계 (A Design of a Conceptual Software Architecture for Inter-operational System of Tactical Data Link)

  • 남재민;윤희병
    • 한국국방경영분석학회지
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    • 제31권2호
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    • pp.105-115
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    • 2005
  • To ensure interoperability among TADILs, we need inter-operational system of tactical data link that allows sharing of specific, planned information among different TADILs. In this paper, we have proposed the design of a conceptual software architecture of inter-operational system. For developing of a conceptual software architecture, we analyze the actual condition of ADSI used in the US military and identify functions and quality-attributes. Based on these factors, we design the conceptual software architecture for inter-operational system of tactical data link using Attribute-Driven Design(ADD) method. ADD is consist of three phases - choose the module to decompose, refine the module, repeat the steps for every module that needs further decomposition. To evaluate of ADD results, we apply the Software Architecture Analysis Method(SAAM) which is consist of making evaluation scenarios, choosing indirect scenarios, evaluation scenarios' interaction, and creating an overall evaluation. Through the evaluation, we verify the conceptual software architecture of inter-operational system.

공동주택의 건강성능 평가지표 개발에 관한 연구 (A Study on the Evaluation Indicators of Healthy Housing Quality of Multi-Family Housing)

  • 조성희;강나나
    • 한국주거학회논문집
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    • 제22권1호
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    • pp.43-55
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    • 2011
  • The purpose this study is to develop indicators that measure the healthy housing condition of multi-family housing. The major findings are as follow: first, healthy housing was defined by physical, mental, social, and management aspects and proposed the conceptual model of hierarchy structure of evaluation of healthy housing by literature reviews. Second, evaluating items were selected based on literature reviews of existing indicators and preceding studies about both domestic and overseas multi-family housing. The evaluating indicators were identified as a total of 87 evaluating items which were composed of four dimensions and 16 attributes on the basis of the conceptual model. They cover comprehensive scope of the multi-family housing such as unit, building, complex, and site. Third, as the measurement, the 5-point ordinal scale measure was suggested. The evaluating measurement including measure standards, measure methods, and measure contents were developed by each evaluating items. Lastly, the weighting of evaluating indicators was developed by AHP method conducted by survey of an expert group. Items were identified as high contributors or low contributors. The weighting of these items could suggest several evaluations according to the situation. The level of healthy housing condition may be evaluated by both total evaluation and a specific field of evaluation.

국악공연장(國樂公演場)의 음향성능(音響性能) 평가(評價)를 위한 어휘(語彙)의 유형화(類型化) (Typicality of Vocabulary for Evaluation on Acoustic Performance at Korean classical music performing place)

  • 최둘;주덕훈;김재수
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2008년도 춘계학술발표대회 논문집
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    • pp.276-280
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    • 2008
  • Korean Classical Music, as the abbreviated wording for 'Korean Music', is being used as the indicating phraseology for our traditional music that distinguishing from Western Music, the foreign music or foreign-styled popular music. Since such Korean Classical Music has the different acoustic characteristics from Western Music, it needs its own performance space for the special exclusive-use of Korean Classical Music. Likewise, even though the demand for the performance space of special exclusive-use for Korean Classical Music where Korean Classical Music is rendering, is on increasing tendency due to the increase of national concern about traditional culture art, since it is being planned without any concrete standard or method that gratifies the supreme listening condition, it is the real situation that a securement of the satisfying acoustic condition is very difficult, after the completion of construction. On such viewpoint, in order to evaluate the acoustic characteristics of the performance space of special exclusive-use for Korean Classical Music, based on the subjective response which reflects human being's psychological attribute at first, this Study has attempted to extract the proper evaluation vocabulary for appraisement on Korean Classical Music. The abstracted vocabulary in such way would be used significantly for Subjective Response Evaluation in order for the evaluation on the Acoustic Characteristics of the performance space of special exclusive-use for Korean Classical Music.

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