• 제목/요약/키워드: case checking

검색결과 406건 처리시간 0.024초

기어 부품의 검사시스템 개발에 관한 사례 (A Case Study on Developing a Checking System of Gear Parts)

  • 윤태홍;변재현
    • 산업공학
    • /
    • 제21권4호
    • /
    • pp.378-384
    • /
    • 2008
  • Small sized companies have not been successful in systematically applying statistical process control because of insufficient human resources. In this paper we present a case study of automatic checking system for a small sized company which produces various types of gears. A systematic way of automatically measuring gears is proposed and statistical analysis methods are presented. To reduce variation in the measurement data, a standard operating procedure is also proposed. This case study can be helpful to quality assurance practitioners of small sized companies who are willing to develop checking or inspection systems for their products.

여분을 갖는 통신시스템에서의 자기검사특성 향상에 관한 연구 (A Study on Enhanced Self-Checking Characteristics in Redundant Communication System)

  • 신덕호;김현기;이재훈;이창훈;이기서
    • 한국철도학회:학술대회논문집
    • /
    • 한국철도학회 2000년도 춘계학술대회 논문집
    • /
    • pp.352-359
    • /
    • 2000
  • In this paper, the method is used that each system isolates the part in which faults are occurred in case of fault occurrence since total system is designed in the type of hot standby sparing system construction and self-checking circuit in each system is attached to the memory being of the high failure rate in common communication system. Thus reliability and availability in system are improved. In this thesis, self-checking circuit was designed using 2 out of 6 code and didn't have any effect to the system operation. For the purpose of verification, each system attached with self-checking circuit was simulated through fault injection arid the continuity of each system in hot standby sparing system was tested in case that the system was switched when faults in the system were occurred.

  • PDF

Case Variation in Guarani

  • Yang, Jeong-Seok
    • 한국언어정보학회지:언어와정보
    • /
    • 제14권1호
    • /
    • pp.93-111
    • /
    • 2010
  • This article is a description of the case variation in Guarani Language, which is a relatively, rarely studied language, and more so about case phenomena. Guarani has two remarkable facts about case. First, it has two overt accusative case markers, which are differentiated by the semantic notion of boundedness as in Jackendoff(1990, 1991). The existence of accusative case markers in Guarani is attested by their behavior in the typical transitive verb sentences, the ability to occur in ECM constructions, and the interpretation of specificity which is parallel to Turkish accusative case marker realization reported in Enc(1991). Second, accusative case forms occur in adjunct positions as well as object positions in Guarani. To capture these peculiar case phenomena, an account based on some recent Minimalist ideas about case checking from Legate(2008), Bowers(2010) is shown to be available.

  • PDF

Development of Hierarchical Checking Tables for Safety Management of Apartment Gang-form Works

  • Kang, Jung-Woo;Cho, Dong-Hyun;Koo, Kyo-Jin
    • 한국건축시공학회지
    • /
    • 제14권2호
    • /
    • pp.177-186
    • /
    • 2014
  • The gang-form widely used in apartment construction sites has advantages compared to scaffolding in preventing falling accidents. One problem, however, is that safety accidents associated with gang-form works repeatedly occur due to worker carelessness. In this study, hierarchical checking tables are provided to support safety management activities for the gang-form works at the sites. Through a survey of experts and analyses of case studies of construction accidents, 137 safety check items are classified by participant type based on a hierarchical safety check scheme. The applicability and effectiveness of the hierarchical checking tables was evaluated through interviews with experts. It was found that the hierarchical checking tables enabled each gang-form related participant to check his own safety management items, and provided a level-wise structure to site safety management systems.

SMV를 이용한 유한 상태 기계의 동치 검사 (Equivalence Checking of Finite State Machines with SMV)

  • 권기현;엄태호
    • 한국정보과학회논문지:소프트웨어및응용
    • /
    • 제30권7_8호
    • /
    • pp.642-648
    • /
    • 2003
  • 본 연구에서는 유한 상태 기계들 간의 동치 여부를 검증하고자 한다. 즉 모든 입력에 대하여 유한 상태 기계의 반응이 항상 동일한지를 판정하고자 한다. 만약 두 개의 유한 상태 기계가 동치라고 판정된다면, 복잡한 유한 상태 기계는 단순한 기계로 대치될 수 있다. 또한 명세와 구현이 모두 유한 상태 기계로 표현된 경우, 동치 검사를 이용해서 구현이 명세를 만족하는지 결정할 수 있다. 본 논문에서는 이와 같은 유한 상태 기계의 동치 검사를 모델 검사 기법으로 다음과 같이 해결한다. 주어진 유한 상태 기계${M_A}와 {M_R}$를 조합하여 모델 $M = {M_A} {\times} {M_\beta}$을 구축하고, 검사할 동치 조건을 시제 논리식 ${\Phi}$로 기술한다. 만일 모델이 시제 논리식을 만족한다면$(M={\Phi})$ 두 기계는 동치이다. 그렇지 않다면 두 기계는 비동치이며 그 이유를 설명하는 반례를 제공한다. 전 과정이 자동화되었으며, 여러 개의 사례 연구에 적용한 결과 만족할 만한 결과를 얻었다.

Use case model의 상세화에 따른 consistency checking 방법에 관한 연구 (Automated consistency checking method in use case model at the level of abstraction)

  • 이은영;백인섭;심우곤
    • 한국정보처리학회:학술대회논문집
    • /
    • 한국정보처리학회 2003년도 추계학술발표논문집 (하)
    • /
    • pp.1685-1688
    • /
    • 2003
  • 객체지향 환경에서 복잡한 소프트웨어 시스템을 개발하기 위해서는, 그것의 복잡성과 대규모성 때문에 추상화에 의한 다계층적인 use case model 의 사용이 불가피하다. 이러한 경우 모델의 consistency 유지가 매우 주요하고 어려운 이슈가 된다. 본 논문에서는 각 추상화 단계에 따른 use case model 들 사이에서 자동적으로 형식적인 consistency 를 체킹할 수 있는 방법을 제안한다. 이 접근 방법은 rule 을 기반으로 하여 actor tree, use cose composition diagram를 use case description을 활용한다. 본 접근법을 검증하기 위하여, ITS 아키텍처 (Intelligent Transportation System architecture)의 한 파트를 예로 들어 적용하였다.

  • PDF

개방형BIM기반의 건축법규검토를 위한 법규유형화 및 적용방안 (Building Code Typology and Application for Open BIM based Code Checking)

  • 김인한;김용하;최중식
    • 한국CDE학회논문집
    • /
    • 제19권3호
    • /
    • pp.224-235
    • /
    • 2014
  • Recently, Productivity of the construction industry has been decreasing than other industries. Because of this, BIM is being spread in the construction industry. However, quality criteria for BIM data is insufficient. Regulation information is an important factor for initial architectural design evaluations. However, building code and related regulation are numerous. National building code structure in Korea is much more complex than other countries. The purpose of this study is to suggest the typology method of building code and apply to real regulations. To achieve this purpose, the authors have extracted required information to from original regulation for code checking and suggested mapping methods between extracted information and information of IFC scheme. In addition, the authors have represented EXPRESS-G diagram for extracting information from IFC scheme and suggested code checking method through stair case. Output of this study can be used as a base line data for automated code checking system based on open BIM. Automated code checking system will be utilized in architectural design evaluations and supported to increase design quality. It can be used to mount in SEUMTER that is the construction administration system of Ministry of Land, Infrastructure and Transport (MOLIT).

A Method for Checking Missed Eigenvalues in Eigenvalue Analysis with Damping Matrix

  • Jung, Hyung-Jo;Kim, Dong-Hyawn;Lee, In-Won
    • Computational Structural Engineering : An International Journal
    • /
    • 제1권1호
    • /
    • pp.31-38
    • /
    • 2001
  • In the case of the non-proportionally damped system such as the soil-structure interaction system, the structural control system and composite structures, the eigenproblem with the damping matrix should be necessarily performed to obtain the exact dynamic response. However, most of the eigenvalue analysis methods such as the subspace iteration method and the Lanczos method may miss some eigenvalues in the required ones. Therefore, the eigenvalue analysis method must include a technique to check the missed eigenvalues to become the practical tools. In the case of the undamped or proportionally damped system the missed eigenvalues can easily be checked by using the well-known Sturm sequence property, while in the case of the non-proportionally damped system a checking technique has not been developed yet. In this paper, a technique of checking the missed eigenvalues for the eigenproblem with the damping matrix is proposed by applying the argument principle. To verify the effectiveness of the proposed method, two numerical examples are considered.

  • PDF

아파트 외벽 갱폼공사를 위한 근로자 안전관리 점검표 개발 (Development of Worker's Checking Table for Safety Management in Apartment Gang-form Works)

  • 구교진;이준호;조동현;강정우
    • 한국건축시공학회:학술대회논문집
    • /
    • 한국건축시공학회 2012년도 춘계 학술논문 발표대회
    • /
    • pp.317-318
    • /
    • 2012
  • Although installations and usages of gang-form that has advantages of preventing fall disaster, the serious disasters from gang-form occur every year. This research focused on the continuous prevention of disasters in construction of outer wall of apartment working site through step by step safety management worker's checking table. The result is the worker's checking table for safety management in apartment gang-form works, through safety guidelines case studies, interviews with safety management experts and then extracting a check list.

  • PDF

CARE 지침에 따른 대한한의학회지의 증례보고에 대한 질 평가 (Evaluation of the Quality of Case Reports from the Journal of Korean Medicine Based on the CARE Guidelines)

  • 최성열
    • 대한한의학회지
    • /
    • 제41권2호
    • /
    • pp.122-136
    • /
    • 2020
  • Objectives: A case report is a detailed report of the symptoms, signs, diagnosis, treatment, and follow-up of an individual patient. The purpose of this study is to evaluate the quality of case reports from the Journal of Korean Medicine by the CARE (CAse REport) Guideline. Methods: Case reports published in the Journal of Korean Medicine from January 2016 to March 2020 were searched from Oriental Medicine Advanced Searching Integrated System (OASIS). We assessed the quality of reporting based on CARE (CAse REport) guideline as 'Sufficient', 'Not-Sufficient' and 'Not-Report'. Results: A total of 22 case reports were finally included for the assessment. The reporting items were reported as of reporting quality. After checking the result, there was a deviation in the sub-item reporting rate by a maximum 89.29%, a minimum 66.67% and a median 82.14% in case reports. Also after checking the quality in case reports by 28 detailed items in CARE guidelines, there were not reported 77% or more in the 5 sub-items 'Intervention adherence and tolerability', 'Informed consent', 'Adverse and unanticipated events', 'Diagnostic challenges', 'Patient perspective'. Conclusion: There is a need to improve the quality of case reports in the journal of Korean Medicine based on various studies using CARE guideline.