Browsing Mechanical & Industrial Engineering by Title
Now showing items 1297-1313 of 1313
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Waste heat recovery in an intercooled gas turbine system: Exergo-economic analysis, triple objective optimization, and optimum state selection
( Elsevier , 2021 , Article)The development of heat and power generation systems has a major step towards sustainable development, reducing fossil energy consumption and reducing environmental pollution. Integrated energy systems are considered widely ... -
Wave propagation analysis of porous functionally graded curved beams in the thermal environment
( Techno-Press , 2021 , Article)In the present paper, wave propagation behavior of porous temperature-dependent functionally graded curved beams within the thermal environment is analyzed for the first time. A recently-developed method is utilized which ... -
Wave propagation in double helical rods
( Elsevier , 2020 , Article)The propagation of waves in helical rods has been studied extensively. However, studying the wave propagation in double helical rods have received less attention although this can be useful in multiple fields of science ... -
Wave Scattering and Power Flow in Straight-Helical-Straight Waveguide Structure
( World Scientific Publishing Co. Pte Ltd , 2019 , Article)The knowledge of wave scattering and power flow in waveguide structures is important for many engineering applications. In this paper, power flow and scattering in a straight-helical-straight waveguide structure are ... -
Wear resistance investigation of titanium nitride-based coatings
( Elsevier Ltd , 2015 , Article)The wear of components while they are in service is a predominant factor controlling the life of machine components. Metal parts are often damaged because of wear-driven failures causing the loss of dimensions and ... -
Wearable real-time heart attack detection and warning system to reduce road accidents
( MDPI AG , 2019 , Article)Heart attack is one of the leading causes of human death worldwide. Every year, about 610,000 people die of heart attack in the United States alone—that is one in every four deaths—but there are well understood early ... -
Wearable thermoelectric generator with vertically aligned PEDOT:PSS and carbon nanotubes thermoelements for energy harvesting
( John Wiley and Sons Ltd , 2022 , Article)Thermoelectric generators (TEGs) facilitate maintenance-free sustainable energy transduction, making them attractive and feasible options for self-powered wearable electronics. Nonetheless, their energy-conversion process ... -
Well-to-wheel water footprints of conventional versus electric vehicles in the United States: A state-based comparative analysis
( Elsevier Ltd , 2018 , Article)Today, increasing levels of water demand become a particularly serious challenge for many countries, especially since water is an essential element for production of transportation fuels. Unfortunately, no research efforts ... -
What is Middle Maintenance Policy?
( John Wiley and Sons Ltd , 2016 , Article)The main purpose of this paper is to propose several new maintenance policies that can be performed at suitable middle times for trivariate preventive maintenance scenarios. Firstly, characteristics and limitations for the ... -
Which replacement is better before or after a specified time for minimal repair models
( International Society of Science and Applied Technologies , 2016 , Conference Paper)This paper compares the models of replacement first, replacement interval, replacement last and replacement overtime to decide which policy would be better before or after a specified time T in the viewpoint of cost saving. ... -
White graphene reinforced polypyrrole and poly(vinyl alcohol) blend nanocomposites as chemiresistive sensors for room temperature detection of liquid petroleum gases
( Springer-Verlag Wien , 2017 , Article)The authors describe the preparation of PVA/WPPy/hBNNP nanocomposite films by solution casting method from poly(vinyl alcohol) (PVA), water soluble polypyrrole (WPPy), and using hexagonal boron nitride nanoparticles (hBNNP) ... -
Wireless active noise control results
( International Institute of Acoustics and Vibrations , 2016 , Conference Paper)Active Noise Control (ANC) is used in controlling low frequency noise where passive control is ineffective. Most (ANC) systems use physical cables to connect various parts of the system for operation. This can be bulky and ... -
Wollastonite/forsterite composite scaffolds offer better surface for hydroxyapatite formation
( Indian Academy of Sciences , 2019 , Article)The present work deals with a comparative study of ceramic/ceramic composites for the development of scaffolds for biomedical applications. Wollastonite and forsterite were synthesized by a sol-gel combustion method. The ... -
Women and engineering in Qatar
( American Society for Engineering Education , 2016 , Conference Paper)[No abstract available] -
Yttrium oxide nanoparticle loaded scaffolds with enhanced cell adhesion and vascularization for tissue engineering applications
( Elsevier Ltd , 2019 , Article)In situ tissue engineering is emerging as a novel approach in tissue engineering to repair damaged tissues by boosting the natural ability of the body to heal itself. This can be achieved by providing suitable signals and ... -
Zinc oxide loaded chitosan-elastin-sodium alginate nanocomposite gel using freeze gelation for enhanced adipose stem cell proliferation and antibacterial properties
( Elsevier , 2023 , Article)Hydrogels have been the material of choice for regenerative medicine applications due to their biocompatibility that can facilitate cellular attachment and proliferation. The present study aimed at constructing a porous ... -
الملكية الفكرية والابتكار وتخطي أزمة فايروس كوفيد-19 المستجد
( جامعة قطر , 2020 , Video)سيتم في هذه الندوة مناقشة دور حقوق الملكية الفكرية في تمكين البحث العلمي لمواجهة الأزمات، ودور إدارة حماية الملكية الفكرية في الدولة لمواجهة جائحة كورونا والتسهيلات المقدمة لأصحاب الأعمال في قطر. بالإضافة إلى جلسة نقاشية ...
