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Global change effects on plant communities are magnified by time and the number of global change factors imposed
(
National Academy of Sciences
, 2019 , Article)
Global change drivers (GCDs) are expected to alter community structure and consequently, the services that ecosystems provide. Yet, few experimental investigations have examined effects of GCDs on plant community structure ...
Clay minerals damage quantification in sandstone rocks using core flooding and NMR
(
Springer Verlag
, 2019 , Article)
Sandstone oil reservoirs consist of different clay minerals such as kaolinite, illite, and chlorite. These clay minerals highly affect the formation damage during enhanced oil recovery (EOR) and well stimulation operations ...
Recycled polyethylene/paraffin wax/expanded graphite based heat absorbers for thermal energy storage: An artificial aging study
(
MDPI AG
, 2019 , Article)
An artificial aging study of novel heat absorbers based on phase change materials (PCMs) prepared from recycled high-density polyethylene (HDPE), paraffin wax (PW), and expanded graphite (EG) was investigated. The optimal ...
Investigation of the temperature-relatedwear performance of hard nanostructured coatings deposited on a s600 high speed steel
(
MDPI AG
, 2019 , Article)
Thin hard coatings are widely known as key elements in many industrial fields, from equipment for metal machining to dental implants and orthopedic prosthesis. When it comes to machining and cutting tools, thin hard coatings ...
Designing carbon nanotube-based oil absorbing membranes from gamma irradiated and electrospun polystyrene nanocomposites
(
MDPI AG
, 2019 , Article)
Carbon-based materials are outstanding candidates for oil spill clean-ups due to their superhydrophobicity, high surface area, chemical inertness, low density, recyclability, and selectivity. The current work deals with ...
Self-healing performance of multifunctional polymeric smart coatings
(
MDPI AG
, 2019 , Article)
Multifunctional nanocomposite coatings were synthesized by reinforcing a polymeric matrix with halloysite nanotubes (HNTs) loaded with corrosion inhibitor (NaNO3) and urea formaldehyde microcapsules (UFMCs) encapsulated ...
Enhanced performance of nano-sized SiC reinforced Al metal matrix nanocomposites synthesized through microwave sintering and hot extrusion techniques
(
Elsevier B.V.
, 2017 , Article)
In the present study, nano-sized SiC (0, 0.3, 0.5, 1.0 and 1.5 vol%) reinforced aluminum (Al) metal matrix composites were fabricated by microwave sintering and hot extrusion techniques. The structural (XRD, SEM), mechanical ...
Adaptation of a Mice Doppler Echocardiography Platform to Measure Cardiac Flow Velocities for Embryonic Chicken and Adult Zebrafish.
(
Frontiers Media
, 2019 , Article)
Ultrasonography is the most widely used imaging technique in cardiovascular medicine. In this technique, a piezoelectric crystal produces, sends, and receives high frequency ultrasound waves to the body to create an image ...
Depression in migrant workers and nationals of Qatar: An exploratory cross-cultural study
(
SAGE Publications
, 2019 , Article)
Background:
The aim of this study was to compare the prevalence of depressive symptoms among migrants and non-migrants living in Qatar and identify variables associated with depressive symptomology in these groups, including ...
MOTIVATION AND LEARNING: A SURVEY STUDY IN PREPARATORY AND SECONDARY LEVELS IN QATARI SCHOOLS
(
Progressive Academic Publishing
, 2019 , Article)
Many studies have investigated the key role that motivation plays in student performance and
academic achievement across different grade levels. Using survey methodology, this study
aimed at determining student motivation ...