Identification of Knowledge Management Barriers in Scientific R&amp;D Projects in Czech Academic Environment

Lajčin, Daniel; Guzoňová, Viera

doi:10.28991/hij-2023-04-01-02

Cited by 7 publications

(2 citation statements)

References 66 publications

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“…In addition, it is frequently used as a benchmark for numerous other characteristics of concrete, including its elastic modulus and tensile strength. Additionally, compressive strength provides a decent general indication of concrete quality [25,40]. The concrete cylinder was made and tested for all sources of CA with the same cement, sand, and water ratio to determine the concrete strength for different CAs.…”

Section: Compressive Strength Of Concrete Cylindermentioning

confidence: 99%

Concrete Strength and Aggregate Properties: In-Depth Analysis of Four Sources

Hosen,

Al Maruf,

Howlader

et al. 2024

Civ Eng J

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In the field of Reinforced Concrete Construction, concrete emerges as the predominant and extensively employed construction material. Concrete comprises a solid, chemically inert granular substance called coarse aggregate (CA) bonded with cement and water. Compared to fine aggregate or cement, CA has a larger volume of concrete. By examining the characteristics of the coarse aggregate using various laboratory testing processes, the coarse aggregate may be properly used in concrete. Bangladesh is experiencing significant growth in its infrastructure industry due to the construction of mega projects nationwide. For the building of RCC in Bangladesh, coarse aggregate is mainly procured from two sources in Bangladesh, and another is imported from China. This study aims to develop a clear understanding of aggregate and concrete strength quality for different coarse aggregates and track changes in the appearance of CA from multiple sources in China and Bangladesh. Coarse aggregates were collected from four prominent sources: Jaflong and Bholaganj (Bangladesh), Shandong, and Jiangsu (China). ACV (aggregate crushing value), gradation, voids, and unit weight; AIV (aggregate impact value), absorption, specific gravity, and resistance to abrasion-induced deterioration; and Los Angeles (LA) machines’ impact tests have been conducted for all sources of CA. The concrete cylinder was made and tested for all sources of CA with the same ratio of cement, sand, and water to know the concrete strength for different CAs. Doi: 10.28991/CEJ-2024-010-04-016 Full Text: PDF

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Section: Compressive Strength Of Concrete Cylindermentioning

confidence: 99%

Concrete Strength and Aggregate Properties: In-Depth Analysis of Four Sources

Hosen,

Al Maruf,

Howlader

et al. 2024

Civ Eng J

View full text Add to dashboard Cite

show abstract

“…It helps save electricity and minimizes solid waste and greenhouse gases. Therefore, it is imperative to comprehend the factors that could positively impact the construction industry, particularly in relation to the utilization of waste and recycled materials [4][5][6][7]. This field has become an essential subject of study and has been explored by researchers.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Recycled PET as an Alternative Material for the Construction Sector Towards Sustainability

Albatayneh,

Akhtar

2024

Civ Eng J

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Addressing the environmental threat of Polyethylene Terephthalate (PET) waste is critical for sustainable development. Despite PET's prevalence in everyday products, its improper disposal endangers environmental health. This study targets a pivotal gap in current research. PET waste's potential as a sustainable building material will be thoroughly evaluated, focusing on whether recycling PET waste is feasible. In the construction industry, it can be a substitute for natural sand and an additive in cement. This study contributes to a dual-purpose solution: mitigating environmental pollution and innovating in construction material science. The systematic literature review (SLR) delves into existing studies, focusing on PET's impact on concrete properties when substituting natural sand at ratios of 5% to 20% and as a cement additive at 0.5% to 2% by weight. The findings revealed that up to a 10% PET replacement enhances compressive strength, highlighting a sustainable pathway for construction practices. However, replacements above 10% show a reduction in strength, indicating an optimal substitution threshold. Moreover, incorporating PET additives at 1% by cement weight optimizes flexural strength, underscoring the material's viability in enhancing structural integrity. This study sheds light on PET waste's application in reducing environmental impact and proposes a viable, eco-friendly alternative for construction materials. The recommendation for further research underscores the necessity to refine PET's application in construction, aiming to bridge the knowledge gap and encourage sustainable future innovations. Doi: 10.28991/CEJ-2024-010-04-020 Full Text: PDF

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The next event will be held with more quality: Identifying and prioritizing barriers to knowledge management in sports events

Moslehi,

Ghahfarokhi

2024

Knowl Process Manag

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Effective knowledge management can help in better performance of projects such as sports events, and it can prevent the reinvention of systems, ideas, and also the repetition of errors. However, considering their temporary nature, projects face serious barriers in effective knowledge management. Therefore, the purpose of this research was to identify and prioritize the barriers of knowledge management in sports events. The statistical population included sports managers and also professors who were knowledgeable about the research subject. Barriers to knowledge management in sports events were identified in two steps. In the first step, the literature was reviewed, and then an interview was conducted with the samples, and in this way, three indicators and 19 sub‐indices were identified. Next, a questionnaire was designed. After collecting the questionnaires, the barriers were ranked through the process of pairwise comparisons in an analytic hierarchy process. The results showed that the most important barriers to knowledge management in the sports event are managerial barriers, with a relative weight of 0.521; barriers related to human resources, with a relative weight of 0.356; and infrastructural and support barriers, with a relative weight of 0.123. The results showed the importance of managerial barriers in the knowledge management of sports events, which shows the necessity of informing and training managers in this area.

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Identification of Knowledge Management Barriers in Scientific R&D Projects in Czech Academic Environment

Cited by 7 publications

References 66 publications

Concrete Strength and Aggregate Properties: In-Depth Analysis of Four Sources

Concrete Strength and Aggregate Properties: In-Depth Analysis of Four Sources

Evaluating Recycled PET as an Alternative Material for the Construction Sector Towards Sustainability

The next event will be held with more quality: Identifying and prioritizing barriers to knowledge management in sports events

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