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Structural and magnetic properties of Ni1-xZnxFe 2O4 (x=0, 0.5 and 1) nanopowders prepared by sol-gel method
(2013 , Article)
A series of nanostructured Ni-Zn ferrites Ni1-xZn xFe2O4 (x=0, 0.5 and 1) with a grain size from 24 to 65 nm have been prepared with a sol-gel method. The effect of composition and sintering temperature on morphology, ...
A fuzzy logic based irrigation system enhanced with wireless data logging applied to the state of Qatar
(
Elsevier B.V.
, 2013 , Article)
In arid regions, developing environment and crop-specific irrigation scheduling that reduces water lost via evapotranspiration is a key to a sustainable and better managed irrigation. This paper presents a practical solution ...
Towards u-health: An indoor 6LoWPAN based platform for real-time healthcare monitoring
(
IEEE
, 2013 , Conference Paper)
Ubiquitous healthcare is the key to handle the challenges of the growing population around the world. A variety of u-healthcare systems have been developed using various short-range technologies and proprietary protocols ...
A comparative analysis of BLE and 6LoWPAN for U-HealthCare applications
(
IEEE
, 2013 , Conference Paper)
For decades, there exist a variety of low-power wireless technologies deployed for healthcare applications such as Zigbee/IEEE802.15.4, Bluetooth, ANT, NFC, IrDA. However, the recently announced Bluetooth Low Energy (BLE) ...
U-healthcare system: State-of-the-art review and challenges
(
SpringerLink
, 2013 , Article)
With the increase of an ageing population and chronic diseases, society becomes more health conscious and patients become "health consumers" looking for better health management. People's perception is shifting towards ...
Study of the effects of dust, relative humidity, and temperature on solar PV performance in Doha: Comparison between monocrystalline and amorphous PVS
(
Taylor & Francis
, 2013 , Article)
The sensitivity of various solar photovoltaic technologies to dust, temperature, and relative humidity is investigated for Doha's environment. Results obtained show that monocrystalline photovoltaics (PVs) have efficiencies ...
Influence of solution chemistry on Cr(VI) reduction and complexation onto date-pits/tea-waste biomaterials
(2013 , Article)
Tea waste (TW) and Date pits (DP) were investigated for their potential to remove toxic Cr(VI) ions from aqueous solution. Investigations showed that the majority of the bound Cr(VI) ions were reduced to Cr(III) after ...
Industrial case studies in the petrochemical and gas industry in Qatar for the utilization of industrial waste heat for the production of fresh water by membrane desalination
(
Taylor and Francis Inc.
, 2013 , Article)
An investigation into the potential of using industrial low-grade waste heat in desalination using membrane distillation (MD) has been carried out. This investigation highlighted the need to work on fresh water production ...
Moisture and temperature dependence of the dielectric properties of pharmaceutical powders
(2013 , Article)
The dielectric properties of pharmaceutical powder–(paracetamol, aspirin, lactose, maize starch, adipic acid) solvent (water) mixtures were measured at 2,450 MHz at a range of moisture contents (0–1.0 kg kg−1, dry basis) ...
Integrating ethics into the chemical engineering curriculum: The Qatar University experience
(2013 , Conference Paper)
Qatar is growing at an unprecedented rate due to the utilization of its vast gas reserves. The country's wealth stems from oil, gas and petrochemical industries. Engineers are in high demand in all specializations and Qatar ...