• Title/Summary/Keyword: AEC industry

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Work-life Conflicts in the AEC Industry - A Comparative Analysis

  • Hu, Wei;Panthi, Kamalesh
    • Journal of Construction Engineering and Project Management
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    • v.8 no.2
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    • pp.1-16
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    • 2018
  • The Architectural, Engineering and Construction (AEC) industry has a culture of long working hours that sometimes extend to weekends. As a result, construction employees find it challenging to achieve a balance between their work and personal lives. It is believed that there is rarely a clear separation between employees' work and personal life in the AEC industry. This paper suggests that in order to attract and retain a talented workforce, AEC organizations have to cater for the diverse needs of employees with regard to work-life balance. This paper presents the results of a survey of both professional and managerial employees' perspective on work-life conflict issues in private and public AEC organizations. Perspectives were found to differ, although not significantly, by employees' experience, leadership experience, age and gender. Furthermore, most survey respondents noted that their employers did not have a policy or program in place supporting work-life balance initiatives. Finally, although the AEC industry is making strides to improve work-life balance, the effort is lagging behind other industry sectors in providing policies and programs to promote work-life balance through flexible work hours and various other means.

Anti-tumor and Anti-inflammatory Effects of Ecklonia cava in CT26 Tumor-bearing BALB/cKorl Syngeneic Mice (CT26 고형암을 내포하는 BALB/cKorl Syngeneic 마우스에서 Ecklonia cava의 항암효과 및 항염증효과)

  • Yu Jeong Roh;Ji Eun Kim;You Jeong Jin;Ayun Seol;Hee Jin Song;Tae Ryeol Kim;Kyeong Seon Min;Eun Seo Park;Ki Ho Park;Dae Youn Hwang
    • Journal of Life Science
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    • v.33 no.11
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    • pp.887-896
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    • 2023
  • The inflammatory response have been considered as one of important targets for cancer treatment because they play a key role during all steps of tumor development including initiation, promotion, malignant conversion and progression. To investigate the anti-inflammatory response during anti-tumor activity of an aqueous extracts of Ecklonia cava (AEC), alterations on the distribution of mast cells and the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2), nuclear factor (NF)-κB, inflammasome compositional protein and inflammatory cytokines were examined in CT26 colon tumor-bearing BALB/cKorl syngeneic mice after administrating AEC for five weeks. After treatment of AEC, total weight of tumor and necrotic region of tumor section were significantly decreased compared to vehicle treated group. The number of infiltered mast cells was higher in AEC treated group than vehicle treated group, while the expression levels of COX-2 and iNOS were decreased in AEC treated group. Also, similar decrease pattern were detected in the expression levels of NF-κB, NLR family pyrin domain containing 3 (NLRP3), apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC) and caspase-1 (Cas-1) after AEC treatment although the decrease rate was varied. Furthermore, the mRNA expressions of three inflammatory cytokines including tumor necrosis factor-α (TNF-α), interleukin-1α (IL-1α) and interleukin-6 (IL-6) were remarkably decreased in AEC treated group compared to vehicle treated group. These results suggest that inhibition of inflammatory response may be tightly associated with anti-tumor activity of AEC in CT26 colon tumor-bearing BALB/cKorl syngeneic mice.

A Study on the Development of a Product Model-based Information Framework for AEC Products (AEC 시설물의 프로덕트 모델기반 정보공유 기술 개발에 관한 연구)

  • Kang, B.C.;Choi, S.R.;Kim, I.H.;Kim, H.D.;Kim, M.H.;Won, J.S.;Kwon, J.M.
    • Korean Journal of Computational Design and Engineering
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    • v.11 no.4
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    • pp.256-264
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    • 2006
  • Currently, it is necessary to share and exchange drawing information between 2D and 3D data in AEC(Architecture, Engineering & Construction) fields. The authors suggest an information model framework to express IFC(Industry Foundation Classes)-based drawing of 3D AEC products as 2D drawing. In this study, 1) an information framework has been developed to enable sharing and exchange of AEC product model by adding various information factors, 2) standardized APIs and an IFC2DBrowser are developed.

Cambodian Construction Industry's Issues in the ASEAN Economic Community

  • MIN, Vuthea;Leungbootnak, Narong;Srinavin, Korb;Aksorn, Preenithi;Deewong, Watcharapong
    • Journal of Construction Engineering and Project Management
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    • v.6 no.1
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    • pp.1-10
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    • 2016
  • Issues in the construction industry of Cambodia in ASEAN Economic Community (AEC) is the main priority to be identified before identifying causing factors in order to find out recommendations, to improve this sector, and to survive in this community. Two major issues were identified from the literature review and the investigation, namely i) Long-term vision and its policy, and ii) practice culture. The total sample collected from concerned government officers and engineers in Cambodia were 463. Factor analysis was then conducted to find out the issues, and as the results, there are five issues in two main groups: (i) the Organization's vision and its skill, which consist of a vision of the organization, knowledge and skill, and less investmen in the construction sector; (ii) Knowledge and motivation towards the AEC, which consist of knowledge about the AEC, and level to promote organization for the AEC.

A Methodology of Open BIM-based Quantity take-off for Schematic Estimation of the Frame Work in Early Design Stage

  • Hansaem Kim;Jungsik Choi;Inhan Kim
    • International conference on construction engineering and project management
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    • 2013.01a
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    • pp.419-425
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    • 2013
  • Recently AEC industry has required construction automation according to becoming large and complex. Thus BIM-based construction project is increased and used in whole fields of AEC industry. Quantity take-off and estimation fields are important factor for decision-making in conceptual and schematic design stages of construction projects. The purpose of this study improves reliability of the estimation through QTO based on Open BIM. Scope and method to apply QTO is to select conceptual design stage through LoD(Level of Detail) in AEC field and to extract information from BIM model through analysis of IFC structure. This study proceeds three step to make BIM model and check the model quality and calculate QTO. The methodology of QTO using IFC is to verify of result in this study and expects utilizing in design stage of construction projects. The result from this study is expected to decrease the risk factor and time of estimation in the project early phase through improving reliability of schematic estimation.

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Development of a Matadata-based Green Building Information Management System for AEC Industries

  • OH, Minho;LIM, Se Young;KIM, Yong Hee;LEE, Tae Dong
    • International conference on construction engineering and project management
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    • 2015.10a
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    • pp.646-647
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    • 2015
  • Green building information used by the AEC industry is diverse and extensive), causing difficulties for personnel regarding the collection and utilization of information in the form of inaccurate searches about related laws, inefficient management of searched information and overlapping works. Therefore, this research aims to propose a law search system utilizing metadata for more accurate and efficient searches of green building information. The proposed system is expected to contribute to improve productivity of construction projects by reinforcing the accuracy and efficiency of searches for the collection and utilization of green building information.

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The Application of Non-phosphorous AEC Program in Cooling Water Systems of Petrochemical Industry

  • Li, Dagang;Hong, Mike;He, Gaorong
    • Corrosion Science and Technology
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    • v.7 no.1
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    • pp.16-21
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    • 2008
  • A non-phosphorous program employing an alkyl epoxy carboxylate (AEC) has been successfully applied to petrochemical and other large industrial open recirculating cooling water systems. AEC is a patented non-phosphorous calcium carbonate scale inhibitor that has demonstrated better scale inhibition abilities than traditional organic phosphonates. In addition to its antiscalant properties, AEC inhibits carbon steel corrosion when used at high dosages. AEC can be combined with zinc to form a non-phosphorous program with very low levels of phosphate to provide an environmentally acceptable program. In actual applications, the total phosphate developed in the cooling system from cycling the makeup is below 1 ppm as $PO_4$. This level has complied with the highest standards of wastewater discharge limitations. The performance of two AEC/Zinc applications is reviewed. In both cases excellent corrosion and scale control were achieved with AEC/Zinc programs. One case history details the performance with a low hardness water (100 ppm calcium, as $CaCO_3$) operating at 8-10 cycles of concentration. The corrosive nature of the water and the long retention time of the system stressed both the corrosion and scale control capabilities of the program. The second case history demonstrates the performance of the program with a moderate hardness water (400-600 ppm calcium, as $CaCO_3$), but under harsh conditions of high temperature and low flow. The AEC/zinc combination has been found to be highly effective in controlling the corrosion of ferrous metals. AEC can provide good corrosion inhibition at high concentrations, while zinc is known to be an excellent cathodic inhibitor. The combination of the two inhibitors not only provides a synergistic blend that is effective over a wide range of operating conditions, but also is environmentally friendly.

The Role of Knowledge on ASEAN Economic Community in Enhancing the Performance of Vietnamese Enterprises

  • NGUYEN, Nam Hoang;NGO, Minh Ngoc
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.8
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    • pp.47-56
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    • 2021
  • ASEAN Economic Community (AEC) was established in 2015 from 10 countries to realize the ultimate (adopted in 1997), which aimed to transform ASEAN into a stable, prosperous, and highly competitive region with equitable economic development, reduced poverty, and socioeconomic disparities. The purpose of this paper is to examine the effect of knowledge level on the AEC of Vietnamese small and medium enterprises (SMEs) in the textile and apparel industry towards attitudes, readiness, and performance. This study uses convenience sampling to get questionnaires from 150 SMEs in Hanoi, Vietnam. Then, the paper applies SPSS-AMOS 24 to process data. The empirical results show that AEC's implementation only has a small impact on improving SME performance. However, SMEs have adequate knowledge, attitude, and readiness about AEC. The structural modeling findings indicate that the knowledge factor has an indirect effect on SMEs' performance. This finding is to provide new insight into the roles of attitude and readiness in the case of Vietnam. These factors are needed to mediate the effect of attitudes and readiness in the relationship between knowledge and business performance, a framework strategy of business organizations, and can be used as a conceptual model to improve SMEs' performance.

Opportunities and Challenges for Vietnam in AEC (AEC 출범 이후 베트남 경제의 기회와 도전)

  • Beak, Yong Hun
    • International Area Studies Review
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    • v.21 no.4
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    • pp.101-124
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    • 2017
  • This study is to examine the current situation of the AEC (ASEAN Economic Community) and analyze macroeconomic situation of Vietnam since the launch of AEC. According to recent trade indicators, Vietnam is expected to be more productive in the manufacturing and processing sectors because it is at the heart of the global value chains (GVCs) in electronics, telephones, and textiles and shoes industry. Vietnam has signed or is negotiating free trade agreements with various countries around the world including Korea, Israel, EU and RCEP and so on. Therefore, it is expected that Vietnam's trade dependency and FDI inflows to Vietnam increase more and more. However, the fact that the proportion of exports by foreign-invested companies accounts for about 70% of the total exports implies the uncertainty of Vietnam's economy in the future. Attracting FDI investment can further reduce the competitiveness of domestic companies in Vietnam. Therefore, in order for Vietnam to maintain sustainable development in the future, it is necessary to reform the momentum of foreign-invested enterprises to the development of Vietnamese companies.