• Title, Summary, Keyword: Assessment Module

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Tunneling-induced Building Damage Risk Assessment System (터널굴착에 따른 인접건물 손상위험도 평가시스템)

  • Park, Yong-Won;Yoon, Hyo-Seok
    • Journal of the Korean Geotechnical Society
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    • v.18 no.3
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    • pp.51-59
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    • 2002
  • This paper deals with development of a damage risk assessment system for adjacent buildings to under-passing tunnel face considering 3D-ground movement. The system consists of building and ground information module, monitoring data module, settlement evaluation module, and building damage risk assessment module. The major modules, settlement evaluation module and building damage assessment module, are based on settlement estimation model suggested by Attewell et al (1982) and the building damage assessment method by Mair et al. (1996). After estimating 3D-ground movements due to tunneling with settlement evaluation module, damage assessment far buildings is performed using building damage risk assessment module. The developed system has two major functions; 1) calculation of 3D-settlement with ground loss ($V_{s}$)or maximum settlement ($w_{max}$) and inflection point (i) using various empirical formulae, monitoring data, numerical results, and so on; 2) assessment of damage risk for adjacent buildings of arbitrary section with position change of tunnel face. The field data given by Boscadin and Cording (1989) leer the case of two-storied masonry building near the Metro tunnel in Washington D.C. was simulated to verify the applicability of the developed system.

Reliability Assessment Criteria of Sensor Module for Lighting Fixtures (조명용센서모듈의 신뢰성평가기준)

  • Jeong, Hee-Suk;Park, Chang-Kyu;Jeong, Hai-Sung;Baik, Jai-Wook
    • Journal of Applied Reliability
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    • v.10 no.1
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    • pp.11-24
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    • 2010
  • Lighting industry is rapidly being developed as the ubiquitous society based on sensor network emerges. This kind of paradigm shift brings the society convergence of technologies which leads to smart lighting system as well as the integration of interior and sensibility control. However, standards for sensors have not been firmly established, and problems related to quality and malfunction have been brought up, thereby calling for careful approach to the enhancement and assessment of reliability of the item. In this article reliability assessment criteria for sensor module for lighting fixtures is established in terms of performance assessment criterion and reliability assessment criterion.

Development of GIS Based Risk Assessment System for Adjacent Structures Due to Tunnelling-Induced Ground Movements in Urban (GIS기반을 이응한 도심지 터널굴착에 따른 인접 구조물 손상평가 시스템 개발)

  • 윤효석;박용원;오영석;김제규
    • Proceedings of the Korean Geotechical Society Conference
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    • pp.493-500
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    • 2001
  • The construction of bored tunnels in soft ground inevitably causes ground movements. In the urban environment these may be of particular significance, because of their influence on buildings, other tunnels and services. The prediction of ground movements and the assessment of the potential effects on the structures is therefore an essential aspect of planning, design and construction of a tunnelling project in the urban environment. In this study, to minimize the effect of tunnelling-Induced ground movements on the adjacent structures, a system for tile settlement risk management was developed. The GIS based risk assessment system for adjacent structures developed in this study consists of several modules such as building information module, settlement evaluation module, potential risk assessment module for adjacent structures, and analysis module for monitoring data. This system focuses on controlling and managing construction processes that may lead to settlement In the surrounding buildings and can contribute to producing the optimum technical and economic design.

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Concept Design of Fire Safety Module for SV20 Service in the Korean e-Navigation System

  • Kim, Byeol;Moon, Serng-Bae;Hwang, Kwang-Il
    • Journal of Navigation and Port Research
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    • v.42 no.5
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    • pp.323-330
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    • 2018
  • The Korean e-Navigation system is a Korean approach to correspond with implementation of IMO e-Navigation. It provides five services, among them SV20 service, a ship remote monitoring system that collects and processes sensor information related to fire, navigation, and seakeeping performance safety. The system also detects abnormal conditions such as fires, capsizing, sinking, navigation equipment failure during navigation, and calculates the safety index and determines the emergency level. According to emergency level, it provides appropriate emergency response guidance for the onboard operator. The fire safety module is composed of three sub-modules; each module is the safety index sub-module, the emergency level determination sub-module and emergency response guidance sub-module. In this study, operational concept of the fire safety module in SV20 service is explained, and fire safety assessment factors are estimated, to calculate the fire safety index. Fire assessment factors included 'Fire detector position factor,' 'Smoke diffusion rate factor,' and 'Fire-fighting facilities factor.'

A STUDY ON DEVELOPMENT OF MONITORING & ASSESSMENT MODULE FOR SITES

  • Park, Se-Moon;Yoon, Bong-Yo;Kim, Dae-Jung;Park, Joo-Wan;Kim, Chang-Lak
    • Nuclear Engineering and Technology
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    • v.38 no.6
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    • pp.575-584
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    • 2006
  • As the development of total management systems for sites along with site environmental information is becoming standard, the system known as the Site Information and Total Environmental database management System (SITES) has been developed over the last two years. The first result was a database management system for storing data obtained from facilities, and a site characterization in addition to an environmental assessment of a site. The SITES database is designed to be effective and practical for use with facility management and safety assessment in relation to Geographic Information Systems. SITES is a total management program, which includes its database, its data analysis system required for site characterization, a safety assessment modeling system and an environment monitoring system. It can contribute to the institutional management of the facility and to its safety reassessment. SITES is composed of two main modules: the SITES Database module (SDM) and the Monitoring & Assessment (M&A) module [1]. The M&A module is subdivided into two sub-modules: the Safety Assessment System (SAS) and the Site Environmental Monitoring System (SEMS). SAS controls the data (input and output) from the SITES DB for the site safety assessment, whereas SEMS controls the data obtained from the records of the measuring sensors and facilities. The on-line site and environmental monitoring data is managed in SEMS. The present paper introduces the procedure and function of the M&A modules.

A Study on the Development of the Quality Assessment Modules of Database System (데이터베이스 시스템 품질 평가 모듈 개발에 관한 연구)

  • Park, Mi-Young;Kim, Min-Jung;Seung, Hyon-Woo
    • Journal of Korean Library and Information Science Society
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    • v.39 no.4
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    • pp.305-329
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    • 2008
  • This study is to develop quality assessment module to apply database system quality assessment thus, recognizing necessity of database system quality improvement maturity model. To manage and improve of database system quality, assessment module is needed to assess database system quality systematically. This study is to perform for the purpose of follows. First, this study is to select quality characteristics and sub characteristics on based on ISO/IEC 9126 series and to develop assessment module for database system quality assessment. Second, this study is to compare and to analysis about quality assessment characteristics of two groups. This study is to have significance to apply quantitative assessment in theoretical and practical basis and is to applicate basic materials of study in database system quality assessment. Also, in succeeding study, it will be to develop of database system quality improvement maturity model.

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A Bone Age Assessment Method Based on Normalized Shape Model (정규화된 형상 모델을 이용한 뼈 나이 측정 방법)

  • Yoo, Ju-Woan;Lee, Jong-Min;Kim, Whoi-Yul
    • Journal of Korea Multimedia Society
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    • v.12 no.3
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    • pp.383-396
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    • 2009
  • Bone age assessment has been widely used in pediatrics to identify endocrine problems of children. Since the number of trained doctors is far less than the demands, there has been numerous requests for automatic estimation of bone age. Therefore, in this paper, we propose an automatic bone age assessment method that utilizes pattern classification techniques. The proposed method consists of three modules; a finger segmentation module, a normalized shape model generation module and a bone age estimation module. The finger segmentation module segments fingers and epiphyseal regions by means of various image processing algorithms. The shape model abstraction module employ ASM to improves the accuracy of feature extraction for bone age estimation. In addition, SVM is used for estimation of bone age. Features for the estimation include the length of bone and the ratios of bone length. We evaluated the performance of the proposed method through statistical analysis by comparing the bone age assessment results by clinical experts and the proposed automatic method. Through the experimental results, the mean error of the assessment was 0.679 year, which was better than the average error acceptable in clinical practice.

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Economic Assessment and Application of AHP for Determining the Design of Assembly Line for the Lens Module of Mobile Phone (휴대폰 렌즈모듈 조립라인 설계안 결정을 위한 경제성 분석 및 AHP응용)

  • Moon, Dug-Hee;Lee, Geun-Hyun;Song, Jun-Yeob
    • Journal of The Korean Society of Manufacturing Technology Engineers
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    • v.20 no.4
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    • pp.509-515
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    • 2011
  • When a manufacturing system is designed, various kinds of evaluation methods are used for selecting the best alternative. Net present value, inner rate of return and payback period are popular quantitative measures for the economic assessment, but other qualitative measures should be considered for evaluation. The analytic hierarchy process(AHP) has been used as the popular method for the multi criteria decision making problem that considers both quantitative and qualitative criteria. This paper explains the process of economic assessment, and how to use the AHP for evaluating the designs of the assembly lines for lens module installed in mobile phone.

An Implementation of an Courseware Authoring Tool Using a Concept based Courseware Representation Method (개념 기반의 코스웨어 표현 방법과 이를 이용한 인터넷 기반의 코스웨어 저작 도구의 구현)

  • Kim, Man-Seok;Kim, Chang-Hwa
    • The Journal of Korean Association of Computer Education
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    • v.5 no.2
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    • pp.39-48
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    • 2002
  • It is general that the ICAI(Intelligent Computer Assisted Instruction) consists of 4 modules. Export module, Teacher module, Student module and Interface module. In each module construction, there should be some rules to control strategies efficiently and systematically that are related to the texts and assessment instruments, assessment results and evaluation, feedback, etc. It is necessary to use a method to classify the curriculum into sections with units and to represent the identified relationships between them. These relationships are available to all the process of learning, assessment, evaluation and feedback. In this paper, we propose the method to represent these units and relationships as a graph. In addition, we implement an internet-based courseware authoring tool to support the environment in which several expert can construct concurrently the courseware with cooperation between them.

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Multi-Object Tracking based on Reliability Assessment of Learning in Mobile Environment (모바일 환경 신뢰도 평가 학습에 의한 다중 객체 추적)

  • Han, Woo ri;Kim, Young-Seop;Lee, Yong-Hwan
    • Journal of the Semiconductor & Display Technology
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    • v.14 no.3
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    • pp.73-77
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    • 2015
  • This paper proposes an object tracking system according to reliability assessment of learning in mobile environments. The proposed system is based on markerless tracking, and there are four modules which are recognition, tracking, detecting and learning module. Recognition module detects and identifies an object to be matched on current frame correspond to the database using LSH through SURF, and then this module generates a standard object information that has the best reliability of learning. The standard object information is used for evaluating and learning the object that is successful tracking in tracking module. Detecting module finds out the object based on having the best possible knowledge available among the learned objects information, when the system fails to track. The experimental results show that the proposed system is able to recognize and track the reliable objects with reliability assessment of learning for the use of mobile platform.