• Title/Summary/Keyword: CM System

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공공사업의 CM제도 개선 및 정책방향 (A Review of the Improvement of Construction Management (CM) System and the CM Policy for the Public Construction Works)

  • 장기창
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2002년도 학술대회지
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    • pp.207-212
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    • 2002
  • 우리나라에서 건설산업의 구조개편, 건설기술의 경쟁력 향상 등과 맞물려 CM에 대한 다양한 논의과정이 있었으며 건설산업기본법('97) 및 건설기술관리법('01)에 CM제도가 규정됨으로써 명실상부하게 체계를 갖추게 되었다. 이 중 특히 공공사업에 대해서는 효율성 제고라는 문제의식에서 출발하여 제도의 활성화를 위한 시범사업(Pilot Project)이 정부를 중심으로 추진중에 있다. 현재 추진중인 시범사업은 제도의 정착, 활성화 뿐만아니라 기존의 CM제도를 좀더 구체화하고 다양화하는 과정으로서 그 시행의 중요성을 인식할 수 있을 것이다. 이러한 시범사업의 추진을 통하여 현재의 감리중심의 CM제도에서 발주자 및 사업특성을 고려할 수 있도록 Owner형 CM, PM형, 민자사업 적용방안 등 다양한 CM적용형태를 모색해야 할 것이다. 이러한 노력들은 공공사업의 효율성 제고 뿐만아니라 민간부분에도 많은 영향을 미칠 것으로 기대된다.

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노년 남성의 의복사이즈 체계연구 (Study on a Clothes Sizing System for Elderly Men)

  • 성옥진;하희정
    • 한국의류학회지
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    • 제39권1호
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    • pp.147-160
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    • 2015
  • This study suggests a detailed apparel sizing system for brands that target elderly men between the ages of 60 to 79 by studying body type differences of the age group based on data from 'The $5^{th}$ Korean Anthropometric survey'. Compared to middle aged men, elderly men body measurements appear to be smaller except in the midriff area, such as the natural waist circumference, waist circumference (omphalion), waist depth and waist depth (omphalion). The size chart in the study was established according to the KS size chart system with a size jump of 5cm in height, 5cm and 3cm in chest circumference, 2cm in waist circumference (omphalion) and 2cm in hip circumference. A total of 8 sizes were established with heights between 160cm and 170cm and chest measurements between 85cm to 100cm for casual tops. For suit tops, a total of 11 sizes were established with heights between 160cm and 170cm and chest measurements between 88cm to 100cm. For bottoms, detailed sizes were suggested by dividing basic and reference areas with 13 sizes between 84cm to 94cm in the waist circumference (omphalion) and between 90cm to 98cm in the hip circumference.

유공위치 변경에 따른 RC기둥의 내력변화에 관한 실험적 연구 (Stress Change Varying with Hole Place of RC Column)

  • 손기상
    • 한국안전학회지
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    • 제21권2호
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    • pp.70-79
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    • 2006
  • many plumbing system are needed in the ceiling of the building as it becomes advanced more and more. This leads to make effective space between ceiling level and slab less. Also, piping system is not suitably arranged and operated if it is bent around the columns which they are a lot. But this system can be more effective if it passes through the columns directly. Most people think that those columns should not be damaged with such as holes. But actually this is existed in a hotel building in switzerland. This study is to fing out how much capacity the columns become damaged and low using model size of $20cm{\times}30cm$ rectangular section, and 160cm long, in the structural test. it's compressive strength is focused on $240kg/cm^{2}$ design strength, commonly used in korea. Compressive test for them was done at Hanyang University using UTM one thousand tone(1000t) capacity. Variable numbers for the study are one hole of dia 3cm with distance 20cm or 40cm, two holes of dia 3cm with 20cm and 40cm distance, one hole of dia 5cm with distance 20cm and 40cm, two holes of dia 5cm with 20cm and 40cm distance, me eccentric hole with 20cm and 40cm distance, Normal(without hole). two test specimens of each variable are made for the test. ED5H20 capacity was 16.7% decreased, compared to normal one. While ED5H40 distant 40cm from the end of column top showed 19.5% capacity decrease, compared to normal one. Strain of ED5H20 diameter 5cm, in distance of 20cm form the top of the column was less 5% than the one of diameter 3cm. Finally, conclusions are that in case of hole diameter 3cm, located at 20cm from the end of the column top, capacity was decreased down to 3, percent only compared to the same diameter hole with 20cm distant from the end of it.

Evaluation of gaseous concentrations, bacterial diversity and microbial quantity in different layers of deep litter system

  • Li, Jing;Wang, Jingyu;Wang, Fujin;Wang, Aiguo;Yan, Peishi
    • Asian-Australasian Journal of Animal Sciences
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    • 제30권2호
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    • pp.275-283
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    • 2017
  • Objective: An experiment was conducted to investigate the environment of the deep litter system and provided theoretical basis for production. Methods: The bedding samples were obtained from a pig breeding farm and series measurements associated with gases concentrations and the bacterial diversity as well as the quantity of Escherichia coli, Lactobacilli, Methanogens were performed in this paper. Results: The concentrations of $CO_2$, $CH_4$, and $NH_3$ in the deep litter system increased with the increasing of depth while the $N_2O$ concentrations increased fiercely from the 0 cm to the -10 cm depth but then decreased beneath the -10 cm depth. Meanwhile, the Shannon index, the dominance index as well as the evenness index at the -20 cm layer was significantly different from the other layers (p<0.05). On the other hand, the quantity of Escherichia coli reached the highest value at the surface beddings and there was a significant drop at the -20 cm layer with the increasing depth. The Lactobacilli numbers increased with the depth from 0 cm to -15 cm and then decreased significantly under the -20 cm depth. The expression of Methanogens reached its largest value at the depth of -35 cm. Conclusion: The upper layers (0 cm to -5 cm) of this system were aerobic, the middle layers (-10 cm to -20 cm) were micro-aerobic, while that the bottom layers (below -20 cm depth) were anaerobic. In addition, from a standpoint of increasing the nitrification pathway and inhibiting the denitrification pathway, it should be advised that the deep litter system should be kept aerobic.

공공토목사업 CM 발주를 위한 단계별 업무지원 시스템 구축 (Development of a Business Support System by Phase for Delivering Construction Management Contract in the Government Civil Project)

  • 채영석;박서영;문현석;김선영;강인석
    • 한국건설관리학회논문집
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    • 제12권5호
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    • pp.81-92
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    • 2011
  • 위험형 CM(CM at Risk) 제도의 시행과 함께 토목시설물에도 CM계약사례가 증가할 것으로 예상되어, 국토해양부 등에서는 CM 업무지침을 공표하고 있다. 현재 공표된 CM 업무지침은 CM 계약 이후의 업무지침이지만, CM 발주사례가 부족한 토목사설을 포함한 공공사업에서는 CM 발주 자체에 필요한 CM발주의 가획단계부터 CM 업자 (Construction Manager, CMr) 선정까지의 업무지침이 필요한 실정이다. 따라서 본 연구에서는 발주처의 건설사업관리 발주업무를 발주 기획단계부터 CMr 선정단계까지 표준화된 프로세스 모형으로 구축하였으며, 이를 위해 CM발주 업무분류체계를 구성하였다. 또한 연구에서는 구축된 모형에 근거한 CM 발주지원 시스템을 개발하여 시스템의 실무 운영성을 검증하였다. 이러한 연구는 CM 발주사례가 부족한 발주처의 CM 발주업무 지원체계로 활용성을 가질 수 있다.

CM 활성화를 위한 산학관 분야의 향후 발전방향 및 미래과제 (A Study of the Future Strategy and Mission for the Stakeholders in Industry, Academy, and Government for the Revitalization of CM)

  • 박형근;신규철;박환표;정영수
    • 한국건설관리학회논문집
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    • 제9권6호
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    • pp.244-256
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    • 2008
  • 국내에 CM 제도가 도입된 지 10년이 지났지만 실질적으로 시장이 형성된 것은 지난 5년 정도의 기간이다. 그동안 새로이 도입된 제도로서 괄목한 만한 성장과 실적을 이루어낸 것은 사실이지만 여전히 다양한 아쉬움과 미래 발전방향에 대한 의구심을 가지고 있는 것이 산학관계에 있는 다양한 전문가의 입장으로 판단된다. 본 연구는 현시점에서 지난 10년을 되돌아보고 향후 10년간 나가야 할 방향과 목표, 전략과 과제를 도출하고자 기획되었다. 해외 사례조사를 통하여 경쟁국들의 동향을 파악하였고 국내 각 분야별 전문가들의 설문조사 및 인터뷰를 통하여 현재의 각 분야별 문제점과 미래 과제들에 대한 공감대를 수렴하였다. 이러한 과정을 통하여 도출된 산학관의 발전방향과 미래과제는 향후 10년의 CM를 전망하고 한 단계 높은 수준의 발전을 추진할 기본적인 동력이 되어야 할 것으로 판단된다.

Survey of Korean CM Contracts for Current Status and Future Direction: Based on 1997 to 2013 Statistics

  • Ha, Jiwon;Park, Jongsoon;Jung, Youngsoo
    • 국제학술발표논문집
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    • The 6th International Conference on Construction Engineering and Project Management
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    • pp.440-444
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    • 2015
  • As domestic construction investment has been gradually reduced, expanding overseas construction is one of the most important issues for Korean construction companies. Among these issues, strategies for overseas CM services have widely been discussed, because the CM services have features of high growth potential and value-added area when compared with other construction sectors. Therefore, recent efforts focus on further development in advanced CM capabilities and expansion to overseas market. However, there has been lack of quantitative research to investigate current status and future direction of CM industry. In this sense, this research investigated what CM has achieved for the past 17years (between 1997 and 2013) and what CM should accomplish for future strategies. The purpose of this research is to statistically analyze total of 2,983 CM service contracts over the past 17 years published in KISCON (Knowledge Information System of Construction Industry) in order to examine current status of CM industry in terms of market type, contract size, commodity type, and owner's type. Based on this research, it is expected to suggest for future strategies and development directions from the CM industry perspective that could provide quantitative analyses, improve current CM statistics systems and strengthen the competitiveness in international CM market.

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CM업무 고도화를 위한 전문가 지식관리 시스템 개발 방향 및 전략 (Direction and Strategy of Experts-Knowledge Management System Development for Enhancing CM Services)

  • 김선국;김아영
    • KIEAE Journal
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    • 제7권2호
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    • pp.63-70
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    • 2007
  • Construction managers who are placed on the top of the construction production organization should exhibit its best knowledges concerning all aspects and control related members at every position properly. In case of CM firms in developed countries, they are equipped with a practical system of technology and management knowledge, and efficiently use the knowledge not only for novices but also experts. However, the domestic CM firms which are now at the lower level than those in developed country are not supported with the sufficient and systematic knowledge for CM tasks due to various reasons. Therefore, the objective of this study is to suggest the direction and strategy for the development of an experts-knowledge management system to enhance the construction productivity at the viewpoint of CM firms which conduct, manage and supervise various tasks of construction projects. Domestic CM firms would play a great role to enhance productivity and secure competitive advantage of project management as much as the firms in developed countries if experts-knowledge and information are supported by a computerized system.

휠체어를 사용하는 남성 장애인의 상의 사이즈체계에 관한 연구 - 독일의 휠체어 장애인 사이즈체계와 비교연구 - (A Study on the Upper Garment Sizing System for Disabled Men using Wheelchair - Compared study with the Sizing System of Germany -)

  • 박광애;성옥진
    • 한국의류산업학회지
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    • 제12권4호
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    • pp.477-486
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    • 2010
  • This study aims at establishing a sizing system required for producing ready-made clothes which can fit the body shape of disabled men using wheelchair. It measured the bodies of 178 adult men using wheelchair and compared the sizing system of German adult men using wheelchair (1984) with KS system(KS K0050, 2004) in order to establish standards of the sizing system. AS a result, in terms of classification of body shapes, KS system cover more types of disabled men's body shapes and especially, A types (Drop 15.6) showed the widest coverage with 32%. In classification of heights, the widest range of height was 170 cm, and Korean men's four sizes between 158 cm and 176 cm covers 88.2% of disabled men's body shape. For chest size, 91.1% of disabled men's chest sizes were included in seven sizes, which are 4 cm intervals between 88 cm and 112 cm with 100 cm standard. In consideration of the ranges of height and chest, the general sizes (A types; 11 sizes, B types; 3 sizes, Y types; 5 sizes) are selected to present the standardized measurements. Basic parts of the upper garment sizing system for disabled men using wheelchair were height-chest-waist size.

한국인 성인 남여의 발형태에 관한 연구

  • 이영숙
    • 대한인간공학회:학술대회논문집
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    • 대한인간공학회 1996년도 춘계학술대회논문집
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    • pp.218-223
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    • 1996
  • The foot shape from the right and left feet was taken with 78 male and 213 female Korean subjects. The results are as follows. 1) Mean values and standard deviations of 25items concering the foot : Measurements performed on Korean adults(male and female) show that male left foot length is in average somewhat longer than the corresponding right foot length(25.35Cm against 25.32Cm) and on the contrary that the circumference of the left foot is slightly smaller than for the right foot. For the same tendency is verified in female feet. 2) Correlations between measurement items : Finding a correlation of more than 0.08 only between the foot length to suggest that the present system of ready-made "shoe" size system, based only on foot length, is not a quite appropriate system. 3) Distribution between foot width, foot girth, instep height and foot length : Foot length showed from 21.52Cm to 24.0Cm in the female subjects and from 24.0Cm to 26.5Cm in the male subjects for the standard type. Foot width showed from 7.5Cm to 10.0Cm in female and from 8.5Cm to 10.5Cm in male for the standard type.dard type.

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