Optimisation of Compressed Earth Blocks (CEBs) using natural origin materials: A systematic literature review

Sustainable development and environmental challenges incite to valorize local materials such as agricultural waste. In this context, a new ecological compressed earth blocks (CEBS) with addition of ground olive stone (GOS) was proposed. The GOS is added as partial clay replacement in different proportions. The main objective of this paper is to study the effect of GOS levels on the thermal properties and mechanical behavior of CEB. We proceeded to determining the optimal water content and equivalent wet density by compaction using a hydraulic press, at a pressure of 10 MPa. The maximum compressive strength is reached at 15% of the GOS. This percentage increases the mechanical properties by 19.66%, and decreases the thermal conductivity by 37.63%. These results are due to the optimal water responsible for the consolidation and compactness of the clay matrix. The substitution up to 30% of GOS shows a decrease of compressive strength and thermal conductivity by about 38.38% and 50.64% respectively. The decrease in dry density and thermal conductivity is related to the content of GOS, which is composed of organic and porous fibers. The GOS seems promising for improving the thermo-mechanical characteristics of CEB and which can also be used as reinforcement in CEBS.

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Endoscopic vein harvesting improves leg wound related morbidity and might impair graft patency: A systematic literature review with meta-analysis

The Thoracic and Cardiovascular Surgeon ◽

10.1055/s-0031-1297461 ◽

2012 ◽

Vol 60 (S 01) ◽

Author(s):

AC Deppe ◽

OJ Liakopoulos ◽

I Slottosch ◽

EW Kuhn ◽

S Stange ◽

...

Keyword(s):

Literature Review ◽

Systematic Literature Review ◽

Meta Analysis ◽

Graft Patency ◽

Endoscopic Vein Harvesting ◽

Vein Harvesting

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A Systematic Literature Review of the EFQM Excellence Model from 1991 to 2019

International Journal of Applied Research in Management and Economics ◽

10.33422/ijarme.v2i2.211 ◽

1970 ◽

Vol 2 (2) ◽

pp. 11-15

Author(s):

Muhammad Yousaf ◽

Petr Bris

Keyword(s):

Quality Management ◽

Data Collection ◽

Literature Review ◽

Systematic Literature Review ◽

Quantitative Research ◽

Web Of Science ◽

State Of The Art ◽

Future Research ◽

European Foundation ◽

The Subject

A systematic literature review (SLR) from 1991 to 2019 is carried out about EFQM (European Foundation for Quality Management) excellence model in this paper. The aim of the paper is to present state of the art in quantitative research on the EFQM excellence model that will guide future research lines in this field. The articles were searched with the help of six strings and these six strings were executed in three popular databases i.e. Scopus, Web of Science, and Science Direct. Around 584 peer-reviewed articles examined, which are directly linked with the subject of quantitative research on the EFQM excellence model. About 108 papers were chosen finally, then the purpose, data collection, conclusion, contributions, and type of quantitative of the selected papers are discussed and analyzed briefly in this study. Thus, this study identifies the focus areas of the researchers and knowledge gaps in empirical quantitative literature on the EFQM excellence model. This article also presents the lines of future research.

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