• 제목/요약/키워드: Variety improvement

검색결과 1,035건 처리시간 0.024초

데이터 마이닝 기반의 6 시그마 방법론 : 철강산업 적용사례 (A Six Sigma Methodology Using Data Mining : A Case Study of "P" Steel Manufacturing Company)

  • 장길상
    • 한국정보시스템학회지:정보시스템연구
    • /
    • 제20권3호
    • /
    • pp.1-24
    • /
    • 2011
  • Recently, six sigma has been widely adopted in a variety of industries as a disciplined, data-driven problem solving approach or methodology supported by a handful of powerful statistical tools in order to reduce variation through continuous process improvement. Also, data mining has been widely used to discover unknown knowledge from a large volume of data using various modeling techniques such as neural network, decision tree, regression analysis, etc. This paper proposes a six sigma methodology based on data mining for effectively and efficiently processing massive data in driving six sigma projects. The proposed methodology is applied in the hot stove system which is a major energy-consuming process in a "P" steel company for improvement of heat efficiency through reduction of energy consumption. The results show optimal operation conditions and reduction of the hot stove energy cost by 15%.

The effect of semantic, syntactic and lexical factors on the menu selection performance for video cassette recorder operation

  • 이삼수;구자령;이종수;이면우
    • 한국경영과학회:학술대회논문집
    • /
    • 대한산업공학회/한국경영과학회 1996년도 춘계공동학술대회논문집; 공군사관학교, 청주; 26-27 Apr. 1996
    • /
    • pp.389-394
    • /
    • 1996
  • The product-user interface for consumer electronic products became complex due to the increased variety of functions corresponding to consumer needs. In this study, three types fo design improvement of the menu interface for a video cassette recorder is studied. Three modifications to an existing menu interface was designed using the semantic, the syntactic and the lexical design factors. A series of the validation experiments was performed to test the effect of the three types of task modifications. The results showed that performance time, number of errors and learning effect were improved for all task modification. It also showed that the performance improvement effect of the semantic factors was 8.8%, that of the syntactic factors was 5.9% and that of the lexical factors was 5.6% respectively. It was found out that the performance improvement effect of the semantic design factors were relatively more significant than the syntactic and the lexical design factors.

  • PDF

낚시터 속성별 개선편익효과 -헤도닉여행비용접근법을 통하여- (The Beneficial Effects of the Improvement of Fishing Site Characteristics : A Hedonic Travel Cost Approach)

  • 이명헌
    • 자원ㆍ환경경제연구
    • /
    • 제11권1호
    • /
    • pp.1-29
    • /
    • 2002
  • Faced with large scale of outdoor recreation resources and variety of demanders' desire, it would be necessary for the managers to estimate the values of individual attributes rather than a bundle of characteristics of outdoor recreation sites. By extending the Brown and Mendelsohn's (1984) approach we are able to estimate the beneficial effects of the improvement of individual attributes. Sampling 208 fishermen who visited 11 free fishing sites located in Daegu and Gyeongbuk, the functions of marginal willingness to pay for scenery and non-crowdedness were estimated. If 1 unit of scenery could be improved from its average value a fisherman, on average, would receive benefit of as much as 3,840 won. The average beneficial effect of the non-crowdedness improvement would amount to 2,220 won.

  • PDF

에너지 이용 합리화를 위한 전기에너지 사용계획 수립에 관한 연구 (The research in rationalization of the use of energy in electric power)

  • 김만국;남시복
    • 한국조명전기설비학회:학술대회논문집
    • /
    • 한국조명전기설비학회 2009년도 춘계학술대회 논문집
    • /
    • pp.392-399
    • /
    • 2009
  • This study investigates and analyzed electrical energy curtailment effect by each business department and by energy use efficiency elevation equipment because do an energy use plan that is enforced in each variety business that is developed in domestic by model. When plan the recent electrical energy use with this, I wish to contribute in energy use general planning establishment improvement that is aiming energy efficiency improvement newly by groping improvement plan moment deduce problem. Specially, search present condition and problem by electrical energy curtailment equipment application that probes mass and analyzed, and is applied in present our country according to analysis contents to the latest energy use plan that was enforced on energy use rationality narration but allowed purpose.

  • PDF

위탁급식전문업체 사업체 급식소의 음식 맛 및 메뉴 관련 세부 개선 속성의 규명을 위한 탐색적 사례연구 (Exploratory Case Study for Identifying Detail Attributes on the Food Taste & the Menu in Office Foodservice of Contract Foodservice Management Company)

  • 박옥진;박문경;양일선;이민준
    • 대한영양사협회학술지
    • /
    • 제10권4호
    • /
    • pp.467-475
    • /
    • 2004
  • The purposes of this exploratory study were to a) verify the first image remember percentage about foodservice and the desire to eat, b) identify detail attributes on the 'food taste' and 'menu variety', the most important problem of the foodservice, c) decide the ranking for improvement of the identified detail attributes, and d) applicate from customer feedback to foodservice operation in the B&I(business & industry) foodservice. For the more reliable result, customer opinion was collected by qualitative research methodology, such as open-ended questionnaire and in-depth interview. The result was followed as : the firstly, the operation circumstance was total 6,700 meal number a day through in-depth interview and 3 types of meal was served. The secondly, the average usage a week was the 7.4 times(B foodservice(B1F)) and the 1.8 times(A foodservice(3F)), respectively. Using reasons of foodservice were 'broad extent', 'menu type', 'shifting convenience' and etc on B foodservice(B1F) and 'menu type', 'clean space' and etc on A foodservice(3F), but the disadvantages of both foodservice were 'complication on peak time', 'the decline of food taste', and 'the absence of menu variety'. 'The decline of food taste' and 'the absence of menu variety' were pointed out the problem asked immediate improvement. The thirdly, it was examined that the first remember about foodservice were 'menu type' and 'foodservice environment' on A foodservice(3F) and 'foodservice environment(atmosphere)' on B foodservice(B1F). The last result, the detail attributes about food taste were ranked respectively 'a salt taste', 'balance of 5 taste at a meal', 'taste of food characteristic' and the unsatisfaction attributes about menu variety were ranked respectively 'serving frequently a same menu', 'the absence of various taste', 'using frequently a same cooking preparation'.

  • PDF

남부지방에 재배되고 있는 밤나무 품종의 과실 특성 (Nut Characteristics of Chestnut Varieties Cultivated in Southern Korea)

  • 박준호;윤준혁;황명수;조민기;최명석;김종갑;문현식
    • 농업생명과학연구
    • /
    • 제45권2호
    • /
    • pp.61-67
    • /
    • 2011
  • 밤나무 품종개량을 위한 기초자료를 제공하기 위하여 남부지방에 재배되고 있는 밤나무 주요 품종의 과실 특성을 2008년부터 2010년까지 3년간 조사하였다. 품종별 착과수는 37.7 (광주조율)~183개 (주옥)로 품종간에 현저한 차이를 보였다. 밤송이 내에 들어 있는 평균 함과수는 1.2~2.0개로 품종에 따라 많은 차이가 나타났으며, 이대 (Idea)는 1.2개였고, 산대와 광은은 2.0개였다. 입중도 품종간 차이가 많았는데, 광덕이 31.3 g으로 가장 무거웠으며, 광주조율은 14.1 g으로 가장 소립품종이었다. 건전과의 비율이 가장 높은 품종은 창방감율 (89.9%)이었으며, 건전과 비율이 80% 이상인 품종은 국견, 유마, 축파, 광은, 평기 5품종이었다. 부패과에 있어서는 신이평과 출운이 각각 10.8, 16.8%의 비율을 나타내어 수확 후 저장에 유의해야 할 것으로 나타났다. 열과율에 있어서는 0 (창방감율)~20.6% (세일)로 품종별로 많은 차이가 나타났으며, 산대, 이평, 주옥, 광덕, 세일은 15% 이상이었으나 국견, 유마, 축파, 만성, 창방감율, 축파변이, 출운은 3% 이하로 나타났다.

지역경관 개선을 위한 주민참여 활성화 방안 연구- 일본의 법제도 및 사례 고찰을 중심으로 - (The Activation of Residents Participation for the Local Landscape Improvement - With Special Emphasis on the Landscape Legal System and Case Study in Japan -)

  • 임정민;윤준도
    • KIEAE Journal
    • /
    • 제11권5호
    • /
    • pp.43-53
    • /
    • 2011
  • The Landscape Act was enacted in 2007 introducing a new procedure of the Local Landscape Agreement and the Local Landscape Improvement Projects. The act has granted local governments a legal basis to support residents participation activities in order to create, improve, and maintain the townscape quality of their neighborhood environments. The degree of utilization of this particular process, however, is far below the expectation. Partly, it is due to the lack of field experience and concrete guidelines for preparation and implementation in actual landscape planning process. This study aims to seek for detailed solution to lead the residents participation for local landscape improvement in Korea through consideration for institutional strategies and cases about the local landscape planning and management in Japan. Local landscape improvement projects in Japan are progressing successfully in concurrence with a variety of local participants such as residents participation, administrative supporting and supporting of local company. And it will be possible to support systematically with systematization of participants, such as NPO and a council.

지속가능성 측면에서 지방대도시 주거환경정비사업의 계획요소 중요도 분석 (Critical Regeneration Elements of the Old Housing Estate in Local Metropolitan in Term of Sustainable Aspects)

  • 박귀동;오덕성
    • KIEAE Journal
    • /
    • 제11권6호
    • /
    • pp.3-12
    • /
    • 2011
  • Currently, the environmental improvement project in residential building in Korea is focused on financing. To solve the variety of problems in urban residential areas, the plan need to apply more elements to improve sustainability. Thus, this study aims to find the main strategies to amend sustainability of the environmental improvement project in residential building. To do this, firstly I reviewed previous studies of sustainablity. Secondly I surveyed the planning elements of the three cases in Boksu-Dong District2, Daeseong-Dong District2, and Samsung-Dong District1 in Daejeon. Lastly I used the AHP analysis method and the 5-point Likert-type questionnaire of judged the importance among the plan elements with experts on urban regeneration of which is found through the previous literature review. In conclusion, this study shows the problems of the Residential Environment Improvement Project. Also, I found out the priority of the main planning elements to improve the problems. By contrasting the relative importance among the plan elements with the case study, the result of this study implies the directions of strategies which include the plan elements for responding climate change, residents' participation, and financial support program and system to improve the status of the environmental improvement project in residential building.

농촌마을정비시 농촌공간특성별 정비유형 분석 (The Improvement Scheme of Rural Villages by Spatial Characteristics)

  • 최영완;윤용철;김영주
    • 농촌계획
    • /
    • 제16권2호
    • /
    • pp.1-10
    • /
    • 2010
  • This study aimed to systematically adjust rural area development projects that have been carried out by a variety of government departments for activation of rural areas and overcome inefficient problems caused by the policies and projects promoted separately. As its alternative, this study aimed to explore efficient improvement scheme of rural villages associated with various projects. Major agriculture/rural policies and projects that have been promoted were classified by the target space of the policies and projects as Environment space, living space, and production space. Each space was categorized into five sub-items without duplication. By assessment results of rural area improvement level and preference by Analytic Hierarchy Process(AHP) method, maintenance of rural areas was classified into four types. And outer space structure was analyzed by using Space Syntax Method(SSM). Based on the analysis result above, facilities for improvement of rural villages were placed around representative facilities. Facility allocation was based on selection and concentration in terms of facility maintenance and on type attributes in terms of spatial aspects. And finally, alternatives schemes for setting up the basic direction of improvement of rural villages are local area characteristics and environmentally conscious business plan.

레이저 센서를 이용한 타이어 옆면 인식 및 개선 시스템 설계 (Design of System for Character Recognition and Improvement of the tire side using a Laser Sensor)

  • 장현영;장종욱
    • 한국정보통신학회:학술대회논문집
    • /
    • 한국정보통신학회 2016년도 춘계학술대회
    • /
    • pp.267-270
    • /
    • 2016
  • 최근 타이어에는 타이어의 정보를 알 수 있는 정보들이 다양하게 타이어 옆면에 표시되어 있다. 이러한 정보를 이용하는 사람들 및 타이어 관련 회사에서는 타이어의 옆면에 표시된 정보를 가지고 어떤 타이언지 구별을 하게 된다. 타이어의 규격 최대 허용 공기압, 제조일자 등을 일반적으로 사람이 직접 눈으로 봄으로서 이루어지고 있다. 이에 최근 영상 처리 기법을 이용하여 타이어 측면의 돌출 문자 인식을 통한 자동화의 연구가 꾸준히 발표 되고 있지만 문자 인식 및 인식의 개선에 대한 방법이 부족한 실정이다. 또한 기존의 옆면 문자 인식을 영상으로 취득 하는데, 취득시 조명 효과를 적절히 이용하더라도 배경과 문자 부분이 거의 유사간 그레이 레벨 값을 가지게 되어 비교적 분명하지 않은 부분이 많이 산재된다. 본 논문에서는 레이저 센서를 이용한 타이어 옆면 문자를 확인하고 인식, 타이어 옆면의 문자 인식에 관하여 설계를 하였다.

  • PDF