• Title/Summary/Keyword: working table

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The Comparison of Energy Expenditure and Fatigue Degree by Use of Working Table (작업대 사용에 따른 농작업 에너지 소비량과 피로도 비교)

  • 이승교;김화님
    • Korean Journal of Rural Living Science
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    • v.2
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    • pp.43-49
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    • 1991
  • 농촌주부의 농작업 피로도를 줄이고 작업능률 향상을 이루는데 기여하고자 농촌주부 12명과 대학생 6명을 피험자로 딸기선별작업과 파출하작업에 대하여 작업대 사용 유무에 따른 피로도와 에너지 소비량을 비교하였다. 피험자의 신장은 한국인 평균보다 작았으며 체중은 비슷하였다. 뇨로서 하루 약 1100$m\ell$ 정도를 배설하였고 총질소 7.5g과 Creatinine 0.9g 정도를 포함하였다. 작업대의 사용으로 자각적 피로와 신체피로부위 조사에 의한 피로도는 감소를 보였으며 객관적 피로도인 Flicker값은 변화가 적었다. 그러나 Creatinine 배설량과는 양의 상관을 보였다. 피험자의 기초대사량은 0.0157㎉/kg/min이며 안정대사량은 0.0213㎉/kg/min이었다. 작업대의 사용으로 1kg의 작업에 드는 시간과 에너지는 감소하였으나 통계적 유의성은 없으며 농부증과 기초대사량은 음의 상관을 보였다.

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Surface Roughness Analsis of Surface Grinding by Design of Experiments (실험계획법을 이용한 연삭가공물의 표면거칠기 분석)

  • 지용주;이상진;박후명;곽재섭;하만경
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2004.10a
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    • pp.54-59
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    • 2004
  • A measure for good products manufactured by grinding process is the surface roughness that is affected by a lot of operating parameters such as types of abrasive, grain size, bond material, wheel speed, table speed, depth of cut, hardness of workpiece and stiffness of grinding machine. In this study, an application of the design of experiments was tried for evaluating the effect of operating parameters on the surface roughness. The workpiece was a high speed tool steel(SKH51) and the surface grinding was conducted. In order to obtain the best surface roughness within constraints of the working range, the optimal grinding conditions were selected. The usefulness of this method was evaluated by the statistical strategy.

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Development of Post-Processor and Cutting Motion Simulator for 5-axis CNC Laser Cutting Machine (5축 레이저 절단기용 포스트프로세서 및 절단 모션 시뮬레이터 개발)

  • Kang, Jae-Gwan
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.8 no.4
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    • pp.7-13
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    • 2009
  • Five-axis laser cutting has great advantages when it is applied to 3-dimensional machining requiring high cutting quality. For developing 5-axis CNC laser cutting systems, however, many problems such as rotating a laser head or a working table, 5-axis servo-control mechanism, tool path generation and post processing, and collision avoidance between a laser head and a work-piece should be solved. In this paper, we deal with developing a dedicated CAM system based on UG-NX3 for 5-axis laser cutting machine. Two essential modules such as post-processor and cutting motion simulation was developed. The developed system was applied to cutting curve defined on 3-D workpiece in order to show the validity of the proposed methods.

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Development of SOC DATS C&M (Control and Monitoring) S/W

  • Koo, In-Hoi;Kim, Su-Jin;Ahn, Sang-Il
    • Proceedings of the KSRS Conference
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    • 2007.10a
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    • pp.602-605
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    • 2007
  • COMS SOC is supposed to operate IDACS as a backup of MSC. For the backup operation, there is a route between SOC and MSC for exchanging current version such as radiometric calibration for IMPS, dissemination schedule, encryption key and conversion table for LHGS. DATS C&M S/W is basically designed to control and monitor DATS equipment. However, its capability is extended to monitor the working status of IMPS, LHGS and even MSC IDACS. In addition, DATS C&M SIW can display discrepancy between MSC and SOC when applied version is different each other. This paper presents detailed description on the development of DATS C&M S/W.

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Structural Dashboard Design for Monitoring Job Performance of Internet Web Security Diagnosis Team: An Empirical Study of an IT Security Service Provider

  • Lee, Jung-Gyu;Jeong, Seung-Ryul
    • Journal of Internet Computing and Services
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    • v.18 no.5
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    • pp.113-121
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    • 2017
  • Company A's core competency is IT internet security services. The Web diagnosis team analyzes the vulnerability of customer's internet web servers and provides remedy reports. Traditionally, Company A management has utilized a simple table format report for resource planning. But these reports do not notify the timing of human resource commitment. So, upper management asked its team leader to organize a task team and design a visual dashboard for decision making with the help of outside professional. The Task team selected the web security diagnosis practice process as a pilot and designed a dashboard for performance evaluation. A structural design process was implemented during the heuristic working process. Some KPI (key performance indicators) for checking the productivity of internet web security vulnerability reporting are recommended with the calculation logics. This paper will contribute for security service management to plan and address KPI design policy, target process selection, and KPI calculation logics with actual sample data.

The Survey on the Use of Book Numbers System in South Korean Academic Libraries

  • Park, Jae-Yong
    • Management & Information Systems Review
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    • v.19
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    • pp.83-104
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    • 2006
  • This study investigated the actual condition of book numbers in South Korean academic libraries. Book numbers that are used in the Korean academic libraries consist of a combination of author-number or author-name, the first letter of the title, and any other shelflisting device. This study examined the current problems that perceive academic librarians on book numbers and the problem awareness of librarians who are working at 110 academic libraries in South Korea. The result shows that academic libraries are using eleven different methods of the book numbers table including nine eastern methods and two western methods. Also, librarians mentioned that the crucial concerns among participating libraries were the duplication of the book numbers and ineffective collection management. Therefore, this study suggested the expansion of the book numbers system in order not to duplicate of book numbers and the unification of western and eastern methods so that academic libraries tackle problems of ineffective collection management.

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A Study on the estimating plane for each phases of practical condition of educational interior construction (실내건축 시공실습장의 적정 공간에 관한 연구)

  • Lee Yong-Euy
    • Korean Institute of Interior Design Journal
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    • v.14 no.3 s.50
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    • pp.173-180
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    • 2005
  • The program of practical training of architectural interior will be change for improvement of not only to complete design on the table but to be in employee market flexibly also. It's necessary to take the educational efficiency for the practical training in the course of intoner architecture. The characteristic of interior space in the model for useful practice is residential space. the interior construction to be controled generally on the central axis of interior architecture, although there were several items of construction which divided architectural structure, electrical power, air control est. the process of practical training is to be established not only with object of training, grade of skill, materials and equipments and tools of it's prepare and working, but safety on the job training.

Cutting Motion Simulator for Nutating Head Type S-axis CNC Laser Cutting Machine (Nutating 헤드 타입 5축 CNC 레이저 절단기용 동작 시뮬레이터)

  • Kang, Jae-Gwan
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.34 no.3
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    • pp.35-40
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    • 2011
  • 5-axis laser cutting has great advantages when it is applied to three dimensional machining requiring high cutting quality. For developing 5-axis CNC laser cutting systems, however, many problems such as rotating a laser head or a working table, 5-axis servo-control mechanism, tool path generation and post-processing, and collision avoidance between a laser head and a work-piece should be solved. In this paper, we deal with developing a motion simulator for 5-axis laser cutting machine with a nutating cutting head whose rotational axis is in an inclined plane. Two essential modules such as post-processor and cutting motion simulator was developed based on a commercial 3D CAD of UG-NX. The developed system was applied to three dimensional cutting products and showed the validity of the developed methods.

A Study for the procedure of a practical training in the course of interior architecture (인테리어시공실습절차에 관한 연구 1)

  • 이용의
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2002.04a
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    • pp.146-149
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    • 2002
  • The procedure of practical training of architectural interior will be change for improvement of not only to complete design on the table but to be in employee market flexibly also. It's necessary to take the educational efficiency for the practical training in the course of interior architecture. The characteristic of interior space in the model for useful practice is residential space. The interior construction to be controled generally on the central axis of interior architecture, although there were several items of construction which divided architectural structure, electrical power, air control est. The process of practical training is to be established not only with object of training, grade of skill, materials and equipments and tools of it's prepare and working, but safety on the job training

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A Study of the local circulation around the kitchen furniture - about dual-income family 30's - (부엌가구를 중심으로 한 국지 동선 특성에 관한 연구 - 30대 맞벌이 가정을 중심으로 -)

  • 민지현;문정묵;임채진
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2002.04a
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    • pp.105-110
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    • 2002
  • This study aims for the research of the local circulation in a kitchen to minimize the kitchen work load and to produce a more efficient kitchen system. This study analized the real behavior and circulation in the kitchen area and this focused on the kitchen of the working women in a dual-income family. Through the analisis, this study raised an idea that the work in the kitchen area is not in sequence, but random while the tradition idea of the kitchen system is arranged by cooking programe. Therefore, this became a reason to increase the kitchen work load ratter than the layout of the kitchen system, the cooking style and menu affected on the more kitchen load. To reduce the kitchen work load, the designeer should shorten the circulation in the kitchen area. And this is possible through the decrease distance between the sink and a kiting zone and through the wide kitchen table which is between the sink and a kiting zone.

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