• 제목/요약/키워드: production errors

검색결과 352건 처리시간 0.027초

분배조정과 생산조정의 제도적 상보성에 관한 비교사회정책연구: 소득 불평등에 미친 영향을 중심으로 (A Comparative Study on the Institutional Complementarities in Coordination of the sphere of Distribution and Production: Focus on the Determinants of Income Inequality)

  • 백승호
    • 한국사회복지학
    • /
    • 제57권4호
    • /
    • pp.91-118
    • /
    • 2005
  • 본 연구는 OECD 14개 회원국을 대상으로 복지체제와 생산체제의 조정전략과 이들 사이의 제도적 상보성이 소득 불평등에 미치는 영향을 분석하는 것이 목적이다. 분석에 포함된 기간은 1980년에서 1997년이며, 분석방법은 벡과 카츠(Beck and Katz, 1995)가 제안한 PCSE(Panel Corrected Standard Errors) 방법이 사용되었다. 제도적 상보성은 분배조정과 생산조정 변수의 상호작용 항으로 분석된다. 본 연구의 결과 제도적 상보성 수준이 높을 경우가 그렇지 않을 경우보다 소득불평등 수준을 낮추는 것으로 분석되었다. 또한, 조정전략의 관점에서 볼 때, 분배조정 영역과 생산조정 영역이 모두 전략적 조정을 지향하도록 제도가 구성될 때 소득 불평등 정도를 더 낮추는 것으로 분석되었다. 즉, 복지체제 영역에서 전략적 조정을 지향하는 정책 변화는 생산체제 영역에서 전략적 조정을 증가시키는 정책 변화가 같이 진행될 때 소득 불평등 수준을 더 낮출 수 있다는 것을 확인하였다.

  • PDF

MODIS 총일차생산성 산출물의 오차요인 분석: 입력기상자료의 영향 (Errors of MODIS product of Gross Primary Production by using Data Assimilation Office Meteorological Data)

  • 강신규;김영일;김영진
    • 한국농림기상학회지
    • /
    • 제7권2호
    • /
    • pp.171-183
    • /
    • 2005
  • In order to monitor the global terrestrial carbon cycle, NASA (National Aeronautics and Space Administration) provides 8-day GPP images by use of satellite remote-sensing reflectance data from MODIS (Moderate Resolution Imaging Spectroradiometer) at l-km nadir spatial resolution since December, 1999. MODIS GPP algorithm adopts DAO (Data Assimilation Office) meteorological data to calculate daily GPP. By evaluating reliability of DAO data with respect to surface weather station data, we examined the effect of errors from DAO data on MODIS GPP estimation in the Korean Peninsula from 2001 to 2003. Our analyses showed that DAO data underestimated daily average temperature, daily minimum temperature, and daily vapor pressure deficity (VPD), but overestimated daily shortwave radiation during the study period. Each meteorological variable resulted in different spatial patterns of error distribution across the Korean Peninsula. In MODIS GPP estimation, DAO data resulted in overestimation of GPP by $25\%$ for all biome types but up to $40\%$ for forest biomes, the major biome type in the Korean Peninsula. MODIS GPP was more sensitive to errors in solar radiation and VPD than in temperatures. Our results indicate that more reliable gridded meteorological data than DAO data are necessary for satisfactory estimation of MODIS GPP in the Korean Peninsula.

실시간 협업 분산 설계 (Collaborative Product Development)

  • 임현욱
    • 한국전자거래학회:학술대회논문집
    • /
    • 한국전자거래학회 2001년도 International Conference CALS/EC KOREA
    • /
    • pp.577-590
    • /
    • 2001
  • Designing Seal Windows System ㆍReduced (by a factor of at least 10) the time for evaluating each design alternative ㆍIncreased quality by 20% (measured as the number of errors that are caught before they propagate) ㆍFound and corrected errors prior to production with an estimated $1-2 million in annual savings in warranty costs ㆍCaptured the state of a design, particularly the parameters that were used to make decisions ㆍEliminated geographic and temporal obstacles ㆍDecreased wasted time caused by slow communication paths(omitted)

  • PDF

다제품 로트 수량 확인법 : 무게 검사 방법 (Multi-product Lot Quantity Verification: A Weighing Inspection Approach)

  • 신완선
    • 대한산업공학회지
    • /
    • 제19권4호
    • /
    • pp.115-123
    • /
    • 1993
  • This paper presents an alternative inspection method for counting items of a lot(or kit) in production lines or distribution centers. In this inspection, lots are weighed instead of counting all items of the lots in order to reduce the effort required for the 100% manual counting inspection. Inspection errors of this inspection procedure are analyzed and the impact of the variability of item weights on inspection errors are investigated. Two approaches, the cost assessment approach and the bicriterion decision making approach, are presented for the implementation of this inspection procedure.

  • PDF

비정형 패널 분할 시 영향요인 분석 (Analysis of influence factors on panelizing of free-form buildings)

  • 이동훈;임지영;김선국
    • 한국건축시공학회:학술대회논문집
    • /
    • 한국건축시공학회 2015년도 춘계 학술논문 발표대회
    • /
    • pp.126-127
    • /
    • 2015
  • New technologies using a CNC machine to reduce the production cost of free-form buildings are being developed. To produce free-form members with such technologies, a vast free form building should be first divided into multiple panels that can be produced. Considering the curved surface of free-form buildings, the shape and size of divided freeform panels vary, which will lead to a great deal of errors. Currently, the engineers and designers complete the panelizing work through trials and errors even in large-scale projects, which results in increased construction duration and cost. Thus, it is necessary to develop a freeform panelizing technology to maximize the economic effects of free-form concrete member production technology. The purpose of the study is to analyze influence factors on panelizing of free-form buildings, which is a preceding research for development of a panelizing technology. The influence factors drawn will provide a core basis for development of panelizing technologies for free-form buildings.

  • PDF

굴삭기공장에서 로봇을 이용한 용접공정의 3D 시뮬레이션 사례 연구 (A Case Study of the Design of Robot Welding Station in an Excavator Factory Using 3D Simulation)

  • 문덕희;조현일;백승근
    • 한국시뮬레이션학회:학술대회논문집
    • /
    • 한국시뮬레이션학회 2005년도 추계학술대회 및 정기총회
    • /
    • pp.113-121
    • /
    • 2005
  • Virtual Manufacturing is a powerful methodology for developing a new product, new equipment and new production system. It enables us to check the errors in design before production. This paper deals with a case study of virtual manufacturing in an excavator factory. Boom and rotating table of upper body are selected for application. 3D models of parts and fixtures are developed with CATIA and 3D simulation models are developed with IGRIP. These models are used for the design of fixture to verify the motion of the equipment. As a result, the manual welding systems are replaced by automatic systems and many design errors are corrected in the design phase, which enables us to reduce the developing cost and time.

  • PDF

A Study of Morphological Errors in Aphasic Language

  • Kim, Heui-Beom
    • 음성과학
    • /
    • 제1권
    • /
    • pp.227-236
    • /
    • 1997
  • How do aphasics deal with the inflectional marking occurring in agglutinative languages like Korean? Korean speech repetition, comprehension and production were studied in 3 Broca's aphasic speakers of Korean. As experimental materials, 100 easy sentences were chosen in 1st grade Korean elementary school textbooks about reading writing and listening, and two pictures were made from each sentence. This study examines the use of three kinds of inflectional markings--past tense, nominative case, and accusative case. The analysis focuses on whether each inflectional marking was performed well or not in tasks such as repetition, comprehension and production. In addition, morphological errors concerned with each inflectional marking were analyzed in view of markedness. In general, the aphasic subjects showed a clear preservation of the morphological aspects of their native language. So the view of Broca's aphasics as agrammatical could not be strongly supported. It can be suggested that nominative case and accusative case are marked elements in Korean.

  • PDF

효율적(效率的)인 데이터베이스 제작(製作)과 정보검색(精報檢索)을 위한 자동철자교정(自動綴字校正) (Automatic Spelling Correction for Efficient Data Base Production and Information Retrieval)

  • 김병혜
    • 정보관리연구
    • /
    • 제21권1호
    • /
    • pp.76-92
    • /
    • 1990
  • 본고(本稿)는 서지(書誌) 데이터베이스제작(製作)과 정보검색관점(情報檢索觀點)에서 자동철자교정(自動綴字校正)에 대(對)하여 논(論)한다. 여기에는 흔히 발견되는 철자오류(綴字誤謬)의 유형(類型)과 서지(書誌) 데이터베이스내(內)의 철자오류(綴字誤謬)가 미치는 영향(影響)에 대하여 기술(記述)하고 있으며, 자동철자교정(自動綴字校正)시스템의 일반적 구성에 관해서는 문서(文書)의 정규화, 철자검증(綴字檢證), 철자교정(綴字校正), 사용자(使用者) 인터페이스로 나누어 기술(記述)하고 있다.

  • PDF

중학교 미술교과서 애니메이션 단원의 구성 및 오류 분석 (The analysis of configuration and errors in animation sections of middle school art textbook)

  • 함종호
    • 만화애니메이션 연구
    • /
    • 통권15호
    • /
    • pp.89-107
    • /
    • 2009
  • 영상매체에 대한 중요성이 부각되면서 중학교 교육과정에서도 애니메이션 분야의 비중이 점차 커지고 있는 가운데, 교과서의 단원 구성과 오류를 조사하고 분석하는 것은 올바른 교육을 위해서 매우 중요한 일이다. 2001년도부터 출판되어 사용하고 있는 7차 교육과정의 중학교 검인정 미술교과서 7종 21권의 애니메이션 단원에 대한 구성 및 오류를 분석한 결과, 다음과 같은 문제점을 분석해낼 수 있었다. 우선, 애니메이션 단원에 대한 교과서 분량의 차이가 집필진에 따라 매우 큼을 알 수 있었다. 또한 실기내용은 대부분 초기의 실험영상기기의 제작에 머무르고 있었으며, 설명 및 용어, 그림에 대해서는 비효과적인 제작과정을 제시한다거나, 부정확한 개념과 용어를 사용하는 등의 오류가 있었다.

  • PDF

전자제품생산의 조정고정을 위한 지능형 제어알고리즘 (Intelligent Control Algorithm for the Adjustment Process During Electronics Production)

  • 장석호;구영모;고택범;우광방
    • 제어로봇시스템학회논문지
    • /
    • 제4권4호
    • /
    • pp.448-457
    • /
    • 1998
  • A neural network based control algorithm with fuzzy compensation is proposed for the automated adjustment in the production of electronic end-products. The process of adjustment is to tune the variable devices in order to examine the specified performances of the products ready prior to packing. Camcorder is considered as a target product. The required test and adjustment system is developed. The adjustment system consists of a NNC(neural network controller), a sub-NNC, and an auxiliary algorithm utilizing the fuzzy logic. The neural network is trained by means of errors between the outputs of the real system and the network, as well as on the errors between the changing rate of the outputs. Control algorithm is derived to speed up the learning dynamics and to avoid the local minima at higher energy level, and is able to converge to the global minimum at lower energy level. Many unexpected problems in the application of the real system are resolved by the auxiliary algorithms. As the adjustments of multiple items are related to each other, but the significant effect of performance by any specific item is not observed. The experimental result shows that the proposed method performs very effectively and are advantageous in simple architecture, extracting easily the training data without expertise, adapting to the unstable system that the input-output properties of each products are slightly different, with a wide application to other similar adjustment processes.

  • PDF