Results 41 to 50 of about 333,900 (300)

Mechanical properties of polypropylene fiber reinforced concrete short columns under freeze-thaw cycles [PDF]

open access: yesArchives of Civil Engineering
To investigate the effect of polypropylene fibers on the mechanical properties of concrete structures in cold regions, obtain an appropriate amount of polypropylene fiber content, and improve the frost resistance of the structure, freeze-thaw cycle tests
Zhenyu Zhang   +3 more
doaj   +1 more source

Shear behavior of RC beams prepared with basalt and polypropylene fibers

open access: yesCase Studies in Construction Materials, 2022
Basalt and polypropylene fibers are relatively cheap, durable, and corrosion-resistant materials, and they can increase the shear strength of reinforced concrete (RC) beams. Although recent studies investigated the mechanical behavior of fibrous concrete,
Yasmin Murad, Haneen Abdel-Jabbar
doaj   +1 more source

State of the art of plastic sorting and recycling : Feedback to vehicle design [PDF]

open access: yes, 2007
Today car manufacturers are beginning to integrate recycling constraints in the first stages of the design of a new car due to their concern regarding the effects of car design on the recovery of material after End-of-Life Vehicle treatment.
ABRAHAM, F   +6 more
core   +4 more sources

Elaboration and study of the thermo-mechanical properties of an aligned cnt - polypropylene nanocomposite by twin-screw mixer [PDF]

open access: yes, 2019
This study presents first the fabrication of a nanocomposite material based on Multi-Walled Carbon Nanotubes, and on a thermoplastic polymer matrix. First, a twin-screw mixer had been employed for preparing polypropylene nanocomposites loaded at 0.1, 1 ...
Barrière, T., Sahli, M.
core  

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

Investing in diversification: oil industry of Kazakhstan

open access: yesBusiness: Theory and Practice, 2023
The article analyzes the growth of opportunities for the production of petrochemical products in the Republic of Kazakhstan. The article analyzes the dynamics of global demand for basic petrochemical products over the past 15 years.
Sagat S. Makhanov   +2 more
doaj   +1 more source

BLACK POLYPROPYLENE MULCH TEXTILE IN ORGANIC AGRICULTURE [PDF]

open access: yes, 2010
Black polyethylene mulch is used for weed control in a range of crops under the organic system. The use of black polypropylene mulch is usually restricted to perennial crops.
Dvorak, Petr   +5 more
core  

Towards more sustainable material formulations: a comparative assessment of PA11-SGW flexural performance versus oil-based composites [PDF]

open access: yes, 2018
The replacement of commodity polyolefin, reinforced with glass fiber (GF), by greener alternatives has been a topic of research in recent years. Cellulose fibers have shown, under certain conditions, enough tensile capacities to replace GF, achieving ...
Ardanuy Raso, Mònica   +5 more
core   +3 more sources

Characterization of Clinical Phenotype to Glial Fibrillary Acidic Protein Concentrations in Alexander Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine the concentration of glial fibrillary acidic protein (GFAP) in cerebrospinal fluid (CSF) and plasma in Alexander disease (AxD) and whether GFAP levels are predictive of disease phenotypes. Methods CSF and plasma were collected (longitudinally when available) from AxD participants and non‐AxD controls.
Amy T. Waldman   +9 more
wiley   +1 more source

Black polypropylene non-woven textile as mulch in organic farming [PDF]

open access: yes, 2009
Black polypropylene textile was used in potatoes by organic agriculture and it had positive effect on soil temperature (in the depth of 100 mmJ. Slightly higher soil temperatures under black polypropylene mulch in the vegetation oeriod after planting had
Dvorak, Petr   +4 more
core  

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