• Title/Summary/Keyword: Evaluation of System Level

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Study to Propose the Suitable Reproducing Sound Level of SAFRS (능동형 음장조성시스템 연출음의 적정 소리레벨 제시를 위한 기초적 연구)

  • Jeon, Ji-Hyeon;Shin, Yong-Gyu;Kook, Chan;Jang, Gil-Soo
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2007.05a
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    • pp.515-518
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    • 2007
  • SAFRS(Spontaneous Acoustic Field Reproduction System) is a system to sense changes of surroundings and produce sounds which can go well with environment elements sensed by the system in to the space. The sounds were judged by individual evaluation and, the classification of the preferred sounds according to the mood of the space was suggested in the former study. Effectiveness of SAFRS with field application was validated by prior studies which dealt with researching acoustic environment, evaluating images of sounds, and rating environment with existence and nonexistence of sound resources such as fountains and the system after applied in D university. In this study, for more effective field application of SAFRS, research for the acoustic environment around sound resources and subjective evaluation of the preference of the sounds from the resources were made and it was considered that the results of the experiments should be primary information to propose proper sound level to be offered by the system. The results of the study are as follows; 1) It was considered that the ambience of the center road was dependent upon produced sounds by the system and water sounds of the fountain and that of walk way was mostly dependent upon produced sounds. 2) The results of the subjective evaluation showed that the distance from sound resources was suggestive; the more distant from produced sounds the less full and clear the sounds, the less distant from the sounds of water the more delight and idyllic ambience, and the less distant from the forest the more idyllic ambient and diversity. 3) The results upwards were telling that an average value of six elements for the evaluation was even at the place set back 10.2m from center road and walk way. And harmony of all sounds of the place should be considered to propose suitable sound level of SAFRS.

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Study to Propose the Suitable Reproducing Sound Level of SAFRS (능동형 음장조성시스템 연출음의 적정 소리레벨 제시를 위한 연구)

  • Jeon, Ji-Hyeon;Shin, Yong-Gyu;Kook, Chan;Jang, Gil-Soo
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.17 no.6 s.123
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    • pp.547-552
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    • 2007
  • SAFRS(spontaneous acoustic field reproduction system) is a system to sense changes of surroundings and produce sounds which can go well with environment elements sensed by the system in to the space. The sounds were judged by individual evaluation and, the classification of the preferred sounds according to the mood of the space was suggested in the former study. Effectiveness of SAFRS with field application was validated by prior studies which dealt with researching acoustic environment, evaluating images of sounds, and rating environment with existence and nonexistence of sound resources such as fountains and the system after applied in D university. In this study, for more effective field application of SAFRS, research for the acoustic environment around sound resources and subjective evaluation of the preference of the sounds from the resources were made and it was considered that the results of the experiments should be primary information to propose proper sound level to be offered by the system. The results of the study are as follows; 1) It was considered that the ambience of the center road was dependent upon produced sounds by the system and water sounds of the fountain and that of walk way was mostly dependent upon produced sounds. 2) The results of the subjective evaluation showed that the distance from sound resources was suggestive; the more distant from produced sounds the less full and clear the sounds, the less distant from the sounds of water the more delight and idyllic ambience, and the less distant from the forest the more idyllic ambient and diversity. 3) The results upwards were telling that an average value of six elements for the evaluation was even at the place set back 10.2m from center road and walk way. And harmony of all sounds of the place should be considered to propose suitable sound level of SAFRS.

Developing System and Site Level Framework of Management Effectiveness Evaluation for the Forest Genetic Resources Reserve in Korea (산림유전자원보호구역의 관리효과성 평가를 위한 시스템 및 현장 수준의 평가틀 개발)

  • Lee, Dong-Ho;Kang, Mihee;Kim, Seong-il
    • Journal of Korean Society of Forest Science
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    • v.105 no.4
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    • pp.472-485
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    • 2016
  • The main purpose of this research was to develop a multi-level evaluation framework for the management effectiveness of the Forest Genetic Resources Reserve (FGRR) at both the system level and the site level. The initial system level Management Effectiveness Evaluation (MEE) framework for FGRR was developed based on the MEE Framework designed by IUCN WCPA and MEE framework for Korean National Parks that was designed jointly by IUCN, the Korean Ministry of Environment, and the Korea National Park Service. Several indicators were added or modified considering characteristics of the FGRR. The final system level MEE frameworks consisted of 6 categories with total of 39 criteria and 42 indicators based on expert survey results. The initial site-level MEE framework was developed based on the site level MEE framework for Korean National Parks that was designed jointly by IUCN, the Korean Ministry of Environment, and the Korea National Park Service. The final site level MEE framework consisted of 6 categories with total of 16 criteria and 40 indicators based on both an expert survey and an intensive workshop with the officers in charge of managing the FGRR from the Korea Forest Service and local governments.

Quality Evaluation Model about Efficiency for Fingerprint Recognition System (지문인식 시스템의 효율성에 관한 품질평가 모델)

  • Lee, Ha-Young;Kim, Jung-Gyu
    • Journal of Digital Convergence
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    • v.12 no.6
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    • pp.215-221
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    • 2014
  • The Fingerprint recognition system is a system which identify the user's identify by verifying user's fingerprint and prepared data. The performance of fingerprint recognition system is dependent on 'fingerprint recognition time' and 'fingerprint recognition accuracy' and so on. In this paper, we developed a evaluation model about efficiency based on ISO quality evaluation standard for evaluating of quality level of fingerprint recognition system. We expect to contribute to construct and use of evaluation criteria based on quality evaluation standard by this study.

A Design of Intelligent Tutoring System for Mobile English Loaming (모바일 영어 학습을 위한 지능형 교육 시스템의 설계)

  • 이영석;김병규;조정원;최병욱
    • Proceedings of the IEEK Conference
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    • 2003.07d
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    • pp.1681-1684
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    • 2003
  • We propose the intelligent tutoring system for the mobile english learning. The proposed system is based on the item response theory to analyze the level of learner. We define the types of item, teaching method and item disposition according to contents modeling. The system estimates the learner level and it gives the learning contents, the evaluation results, and feedback. The system gives those by inference engine which consists of learner's level estimation value, method diagnostic value and disposition diagnostic value.

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Assessment of National Contribution of Research Facilities via the System Dynamics Method (시스템 다이나믹스 기법을 활용한 국가 연구시설의 기여도 분석)

  • 김지용;곽상만;최기련
    • Proceedings of the Korean System Dynamics Society
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    • 2004.02a
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    • pp.109-128
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    • 2004
  • A system dynamics model is developed in order to evaluate the contribution level of the activities regarding HANARO, which is the research reactor in Korea. The system dynamics model has room to be improved, but it is logically sound enough to evaluate the general level of contributions and to develop strategies for the HANARO to be more contributable. Considering the uncertainty involved with the input variables, the contribution level is ranged from 3 times to about 30 times of the investment made on it. The evaluation results can be summarized as follows : (Table Omitted).

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On the Effect of ON-DOCK System to the Sharpening of Competitiveness Edge of the Pusan Port (ON-DOCK 서비스 시스템이 부산항 경쟁력 향상에 미치는 영향)

  • Yang, W.;Lee, C.Y.
    • Journal of Korean Port Research
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    • v.13 no.1
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    • pp.1-10
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    • 1999
  • Port competition is generally classified into two type of inter-domestic ports and intermational ports and the latter is measured how to secure the function of intermediacy for foreign cargoes among competing parts. In the Northeast Asia top 20 world container ports such as Pusan, Kobe, Yokohama and Kaohsiung are struggling to induce transshipment containers generated in the North China region. This paper aims to analyze and evaluate the competitive factors of the said ports such as port site facilities expenses service level and flexibility of management and operations and suggest the feasible strategies that the Pusan Port to be viable transshipment center in the region. The evaluation is attempted twice. First attempt is evaluated by present conditions of each port and second attempt by upgraded conditions of evaluation value such as port service level and flexibility of port management and operations resulted from the implementation of the ON-DOCK service system. The results of evaluation are as follows; (1) Port competitiveness of first evaluation is ranked in Kobe=Kaohsiung >Pusan>Yokohama. (2) Second evaluation is resulted in Kobe> Pusan= Kaohsiung>Yokohama. According to this results the competitiveness edge of the Pusan Port is able to strengthen by implementation of the ON-DOCk system.

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Construction and Evaluation of Cryogenic Preconcentration System for Analysis of VOC with ppb Level in the Air (대기 중의 ppb 농도의 VOC의 분석을 위한 저온농축장치의 제작과 성능평가)

  • Jeon, Sun Joo;Kim, Byung Joo;Kim, Jin Seog;Heo, Gwi Suk
    • Analytical Science and Technology
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    • v.12 no.4
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    • pp.332-340
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    • 1999
  • Homemade cryogenic preconcentration system is constructed to preconcentrate the VOCs in the ambient air collected in canister. Homemade preconcentrator equipped with GC-MS was used for analysis of air sample containing VOCs at ppb level identified in EPA TO-14 method. The system was evaluated for analytical performance by comparison with the results of adsorption tube method widely used in the past, and shows good agreement for concentrations of benzene, toluene, ethylbenzene, and xylenes.

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A Study on the Evaluation Model for Company Selection of Defense Information System R&D Projects (국방 정보시스템 연구개발사업 업체선정 평가모형 개발에 관한 연구)

  • Kim, Sun-Young;Lee, Young-Jae
    • The Journal of Information Systems
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    • v.19 no.2
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    • pp.73-95
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    • 2010
  • This study shows the scientific and systematic Evaluation Model using factor analysis and AHP methods for the success of defense Information System R&D projects. The evaluation model was divided into 7 evaluation factors such as Developing support, Developing infrastructure, Developing management and test & evaluation, Support factors for strength, Understanding & developing strategy, Developing technology & organization, and Developing performance. And those were composed of totally 24 low level Evaluation index. The Developed Evaluation Model in the paper could be contributed more to objectively and transparently company selection of defense Information System R&D and other defense R&D Projects in the future.

Design of a Feature-based Multi-viewpoint Design Automation System

  • Lee, Kwang-Hoon;McMahon, Chris A.;Lee, Kwan-H.
    • International Journal of CAD/CAM
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    • v.3 no.1_2
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    • pp.67-75
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    • 2003
  • Viewpoint-dependent feature-based modelling in computer-aided design is developed for the purposes of supporting engineering design representation and automation. The approach of this paper uses a combination of a multi-level modelling approach. This has two stages of mapping between models, and the multi-level model approach is implemented in three-level architecture. Top of this level is a feature-based description for each viewpoint, comprising a combination of form features and other features such as loads and constraints for analysis. The middle level is an executable representation of the feature model. The bottom of this multi-level modelling is a evaluation of a feature-based CAD model obtained by executable feature representations defined in the middle level. The mappings involved in the system comprise firstly, mapping between the top level feature representations associated with different viewpoints, for example for the geometric simplification and addition of boundary conditions associated with moving from a design model to an analysis model, and secondly mapping between the top level and the middle level representations in which the feature model is transformed into the executable representation. Because an executable representation is used as the intermediate layer, the low level evaluation can be active. The example will be implemented with an analysis model which is evaluated and for which results are output. This multi-level modelling approach will be investigated within the framework aimed for the design automation with a feature-based model.