بحث بسيط
السجلات المعروضة 6941 -- 6950 من 7014
Potential use of solar photocatalytic oxidation in removing emerging pharmaceuticals from wastewater: A pilot plant study
(
Elsevier Ltd
, 2018 , Article)
A pilot plant was used to evaluate the potential of solar photocatalytic processes in the treatment of wastewater containing emerging contaminates. Four groups of commonly used pharmaceuticals (antibiotics, estrogens, ...
Bioactive PCL matrices with a range of structural & rheological properties
(
Elsevier
, 2016 , Article)
Safer pharmaceutical and medical device excipients are being sought as alternatives to polyvinyl polymers that are commonly plasticised by carcinogenic phthalates. This paper demonstrates a biodegradable and non-toxic ...
Solar driven two-step CH4 reforming and H2O splitting using Al2O3 for Co-production of Al, syngas, and H2
(
Elsevier Ltd
, 2018 , Article)
The thermodynamic equilibrium and efficiency analysis of the solar-driven Al2O3-based CH4 reforming and H2O splitting process is performed in two sections: (1) Al and syngas producing open process (AS), and (2) Al, syngas, ...
Novice teachers' job satisfaction and coping strategies: Overcoming contextual challenges at Qatari government schools
(
Elsevier Ltd
, 2017 , Article)
The first years of teaching are challenging and how novice teachers cope has important implications for their satisfaction. The current study examined the perceptions of five novice and five experienced teachers about ...
Transition metal doped ceria for solar thermochemical fuel production
(
Elsevier Ltd
, 2018 , Article)
In this paper, the effect of doping of transition metal cations on thermal reduction and CO2 splitting ability of Ce0.9M0.1O2−δ materials (where, M = Ni, Zn, Mn, Fe, Cu, Cr, Co, Zr) is investigated by performing multiple ...
Mathematical modeling, simulation and optimization of solar thermal powered Encontech engine for desalination
(
Elsevier Ltd
, 2018 , Article)
This paper investigates a solar driven external combustion and regenerative engine, which can be used for desalination of seawater by using gaseous working fluids. The effect of operating and design parameters on engine ...
Single and multi-component adsorption of aromatic acids using an eco-friendly polyaniline-based biocomposite
(
Elsevier B.V.
, 2017 , Article)
The polyaniline coated with an agricultural waste (Argan nut shell) was prepared via in-situ chemical polymerization and used as an adsorbent material for removal of trimellitic (Tri), hemimellitic (Hemi) and pyromellitic ...
Novel controlled synthesis of nanoporous carbon nanorods from resorcinol-formaldehyde xerogels
(
Elsevier B.V.
, 2017 , Article)
A novel approach is discovered to produce carbon nanorods (CNRs) from resorcinol-formaldehyde xerogels. The structure and morphology of CNRs are characterized by pore size analysis, nano-scanning electron microscopy, ...
Aging evaluation of asphalt samples with Low Field Nuclear Magnetic Resonance
(
Elsevier Inc.
, 2017 , Article)
In this study, a recently developed methodology to assess aging of pavements by using Low Field Nuclear Magnetic Resonance (LF-NMR) was applied to asphalt mix samples at different aging states. The ultimate objective of ...
Characteristics and mitigation strategies for cell phone use while driving among young drivers in Qatar
(
Elsevier Ltd
, 2018 , Article)
There is no doubt that cell phone use while driving can lead to a higher probability of driver error, which increases the likelihood of more crashes. In Qatar, the high rate of cell phone use while driving among young ...