• Title/Summary/Keyword: Standard Process

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ASTM 규격을 통한 국내 부지조사 기법 개발

  • 안훈기;권영호;박신영;이영훈;공성호
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2002.04a
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    • pp.291-294
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    • 2002
  • The Environmental Site Assessment System(ESAS) in Korea which became effective as of 2002 is very similar to the ASTM standard practice in United States. Unlike the United States, however, we do not have Phase I ESA, enough environmental professionals with approved training and practical experiences, and detailed guidelines for a governmental action. As a result of comparison the ESAS with the ASTM standard practice, the ASTM standard practice is focused on the Innocent Landowner Defense and has a difference in data search process as well as legal and methodological ways from the ESAS. Therefore, the Transaction Screen Process in ASTM E-1528 standard practice is suggested to reduce the risk potentially produced under on-site assessment and to achieve efficient on-site assessment. In addition, social and executive supports are discussed to more activate on-site assessment. In near future this study is expected to be standardized more in detail with activation of on-site assessment and it is also expected to increase the role and responsibility of environmental professionals considerably.

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Applications of the Time Study to Establish Standard Times for a Small-Sized Manufacturing Company (중소제조 업체의 표준시간 산정을 위한 시간연구의 적용)

  • Kee, Do-Hyung;Ko, Hyun-Jeung;Lee, Dae-Joo
    • IE interfaces
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    • v.10 no.2
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    • pp.115-125
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    • 1997
  • The main purpose of this study is to establish standard times of several manufacturing processes in a small-sized manufacturing company located in Taegu. This company produces two types of products; single parts and part assemblies of bicycles. Due to lack of the standards on daily or hourly production volumes, the production manager could not assign workers daily production volume at the start of production, and could not exercise tight supervision. The standard times established in this study were much less than the average production times found in the daily production report. Based on these standard times, we calculated the number of machines that a worker can operate properly without bringing overload on him, and established a line balanced production system in each manufacturing process to minimize work-in-process inventory.

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Process Capability Indices for Skewed Populations (비대칭 모집단에 대한 공정능력지수의 개발)

  • 장영순;배도선
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2000.04a
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    • pp.365-368
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    • 2000
  • This paper proposes a new heuristic method of constructing process capability indices (PCIs) for skewed populations. It is based on weighted standard deviation (WSD) method which decomposes the standard deviation of a quality characteristic into upper and lower deviations and adjusts the value of PCI using decomposed deviations in accordance with the skewness estimated from sample data. For symmetric populations, the proposed PCIs reduce to standard PCIs. Asymptotic distributions of the estimators of the PCIs are obtained. The performances of the proposed methods are compared with those of the standard and other methods. Numerical comparisons indicate that considerable improvements over existing methods can be achieved by the use of WSD method when the underlying distribution is skewed.

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A Case Study of Computer Application for Work Study and Standard Time Data in Mid-Level Factory having Working Circumstances of Multi-Item and Multi Process Type -Mainly Focused on the Case of Man-Machine Chart- (다품종 및 다공정 환경 중소기업의 현장직 사원에 대한 작업분석 및 표준설정을 위한 Computer Application 사례연구 -M/M Chart Case를 중심으로-)

  • Yoo, Wang-Jin
    • Journal of Korean Society for Quality Management
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    • v.22 no.2
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    • pp.127-142
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    • 1994
  • In these days, the PCs are widely used in the mid-level factory. But they have low-effectiveness for using them. The main reason should be the lack of useful and practical software in the market. This Case study aimed at the support of the software using DB Language to get M/M chart for aquiring work study and standard time data in the mid-level factory having multi-item and multi-process type. CVA (Chronocycle Video Analysis) is applied to get basic standard time data and working list. Standard time, Sequence of working and allowance time or rate for man and machine will be readily obtained through the menu when the software executing. Detailed program list is systematically shown in Appendix.

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The Effects of Root Gap on Mechanical Properties and Fatigue Strength of Weldment (용접부의 기계적 성질 및 피로강도에 미치는 루트 간격의 영향)

  • 이원근;장경복;강성수
    • Journal of Welding and Joining
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    • v.19 no.2
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    • pp.98-103
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    • 2001
  • Root gap out of standard by welding deformation is frequently produced at butt weld joints of steel bridge. For example although standard root gap is below 6mm at butt weld joints of plates under 15mm thickness. maximum 35mm root opening is produced at the weld field. At this case, the part out of standard is generally built up and the rest part is welded by WPS. Direct welding without built-up welding is preferred in weld field because built-up welding process bring about the cost-up at manufacturing. To apply this direct weld to root gap out of standard, the investigation about mechanical properties and fatigue at weldment is required. Inthisstudy, therefore the verification for direct weld without built up is performed at weldment as root gap. It includes tension, bending. hardness, impact and fatigue test for each welding specimen of 6mm, 25mm, 35mm root gap.

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The Effect of Standard and Downward Slope of the Keyboards on Upper Trapezius Electromyography of Typists With Taping (키보드 종류에 따른 테이핑 적용이 상승모근의 근활성도에 미치는 영향)

  • Park, Hyung-Ki;Park, Jang-Sung;Cho, Nam-Jung
    • Journal of the Korean Academy of Clinical Electrophysiology
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    • v.6 no.1
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    • pp.103-114
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    • 2008
  • The purpose of this study is to use standard and downward slope of the keyboards with taping to influence electromyography of upper trapezius. The effect of taping raise a medical criticism, but we do an experiment on two kind of keyboards with taping in order to decrease stress of shoulder. Subjects are in Seonam university whose are twelve healthy adults in their twenties. This experiment used two kind of keyboards. Standard keyboard's degree is $0^{\circ}$ and another keyboard's degree is $-7.5^{\circ}$. Application of Kinesio taping attached belly of upper trapezius tightly. Measurement of electromyography attached posterior of acromion process go by spinous process of 7th cervical vertebra and upper trapezius. Method of analysis used Repeated measure two-way ANOVA. Result of this experiment, both shoulder's muscle activity increased(p<.05) when used standard keyboard and downward keyboard with taping used. We compared muscle activity that used downward keyboard than standard keyboard. Statistically, it dosen't increase in neck and shoulder(p>.05). Therefore, using a keyboard with upper trapezius's taping in order to decrease muscle activity isn't influenced.

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Profile Design and Implementation of Aerial Photogrammetry WPS for Standard GIS Web Service (With Emphasis on Affine Transformation and Resection) (표준 GIS 웹 서비스를 위한 항공사진측량 WPS의 프로파일 설계 및 구현 (부등각사상변환, 후방교회법 중심으로))

  • Kim, Byung-Jo;Yom, Jae-Hong;Kyung, Min-Ju
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.28 no.3
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    • pp.337-345
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    • 2010
  • In general, Digital Photogrammetry is based on independent workstation system, which is costly and has complex process. In this research, a new approach method regarding Digital Photogrammetry procedure is suggested using Web Processing Service, which is a GIS standard proposed by Open Geospatial Consortium. For the experiment, many Generic Processes were defined through WPS profiling procedure which defines standard unit for Photogrammetry, and with the defined process each server and client S/W module was implemented based on WPS standards. In this paper, many users can be expected to share and reuse unit process in WPS server through the web.

Process Control Analysis for Efficient Production Management of Customized Baseball Uniforms (맞춤형 야구복의 효율적 생산관리를 위한 공정관리 분석)

  • Choi, Kueng-Mi;Hwang, Hyun-Jung;Jun, Jung-Il;Park, Yong-Soo
    • Fashion & Textile Research Journal
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    • v.14 no.4
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    • pp.597-606
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    • 2012
  • To increase the productivity and product quality of customized baseball jerseys, this study developed a multi-variable system for a production process that efficiently controls diverse production management factors. The working time was measured through the establishment of a standard process where skilled workers and Chinese factory workers manufactured 5 sets of the same basic design jerseys. Based on the measured working time (1,136 seconds/per unit), the multi-variable process control system was developed, where hourly production management is possible according to the involved workers and equipment types. Each process was assigned accoding to the production management factors for a total of 28 standard processes. The processes were developed based on consideration of work characteristics according to the order of needlework of open-type set baseball jerseys with sleeves(the basic design of baseball jerseys)to result in a customized production system structure that could be set up with multi-variables. As a result, a total 12 types of systems were developed in consideration of the personnel involved and the number of equipments. The optimal production management system (with the highest efficiency compared to the number of workers)was A-2, B-1, C-1. D-2, E-2, F-1, and G-1. This system had extremely high efficiency and showed 99% assignment efficiency for the 7-person team. Though not optimal, possible process assignment for each working personnel is proposed as a reserve process in case work modification is inevitable due to malfunctions and the absence of equipments.

An Application Study of Six Sigma in Clinical Chemistry (6 시그마의 적용에 대한 연구)

  • Chang, Sang Wu;Kim, Nam Yong;Choi, Ho Sung;Park, Yong Won;Chu, Kyung Bok;Yun, Kyeun Young
    • Korean Journal of Clinical Laboratory Science
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    • v.36 no.2
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    • pp.121-126
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    • 2004
  • The primary goal of six sigma is to improve patient satisfaction, and thereby profitability, by reducing and eliminating defects. Defects may be related to any aspect of customer satisfaction: high product quality, schedule adherence, cost minimization, process capability indices, defects per unit, and yield. Many six sigma metrics can be mathematically related to the others. Literally, six means six standard deviations from the mean or median value. As applied to quality metrics, the term indicates that failures are at least six standard deviations from the mean or norm. This would mean about 3.4 failures per million opportunities for failure. The objective of six sigma quality is to reduce process output variation so that on a long term basis, which is the customer's aggregate experience with our process over time, this will result in no more than 3.4 defect Parts Per Million(PPM) opportunities (or 3.4 Defects Per Million Opportunities. For a process with only one specification limit (upper or lower), this results in six process standard deviations between the mean of the process and the customer's specification limit (hence, 6 Sigma). The results of applicative six sigma experiment studied on 18 items TP, ALB, T.B, ALP, AST, ALT, CL, CK, LD, K, Na, CRE, BUN, T.C, GLU, AML, CA tests in clinical chemistry were follows. Assessment of process performance fits within six sigma tolerance limits were TP, ALB, T.B, ALP, AST, ALT, CL, CK, LD, K, Na, CRE, BUN, T.C, GLU, AML, CA with 72.2%, items that fit within five sigma limits were total bilirubin, chloride and sodium were 3 sigma. We were sure that the goal of six sigma would reduce test variation in the process.

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A Standard Business Process of Resource Planning Systems for Footwear Production (신발생산 자원관리 시스템의 표준 비즈니스 프로세스)

  • 류영근;조남호
    • Proceedings of the Korea Society for Industrial Systems Conference
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    • 2002.06a
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    • pp.56-56
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    • 2002
  • The embodiment of working process fitting in characteristics of business each other in ERP system is indispensable factor. But, general ERP system is not so much profitable for the way of production management of footwear of domestic midge and small company that is dependant on most of the way of OEM production. Therefore, the development of ERP system fitted for present situation of the footwear manufacturing companies is necessary. For this, first, the business process for footwear production, for development of this system, have to be standardize and second, the model of Integrated system process based on standard business process have to be design for programming. In this paper, we proposed a method to build up standard business process and execute BPP in the point of the foundation for introduction and development of the resource planning systems only used by production of footwear and suited to the way of production management of the domestic companies manufacturing footwear. With this, we presented a process model of resource planning systems for footwear production. This study is focused on construction of integrated process model for production resource planning of ERP subsystems and the integrated process model consist of 13 modules.

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