Browsing Mechanical & Industrial Engineering by Title
Now showing items 771-790 of 1356
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Joint optimization of redundancy level and spare part inventories
( Elsevier Ltd , 2016 , Article)We consider a "k-out-of-N"? system with different standby modes. Each of the N components consists of multiple part types. Upon failure, a component can be repaired within a certain time by switching the failed part by a ... -
Joint replenishment model for multiple products with substitution
( Elsevier Inc. , 2016 , Article)We extend the classical economic order quantity model to address the joint replenishment of multiple products under substitution. The proposed model optimizes ordering quantities for each product under substitution effects ... -
Key performance indicators (KPIs) for evaluation of energy conservation in buildings
( Institute of Electrical and Electronics Engineers Inc. , 2013 , Conference Paper)The main objectives of this paper are to: identify key performance indicators (KPIs) related to intelligent buildings (economical, environmental, reliability, and quality), and; propose a simulation framework for evaluation ... -
Key Success Factors and Their Impact on the Performance of Construction Projects: Case in Qatar
( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article)The success of a construction project depends on different factors, the knowledge of the project managers, and the type of project being developed. In this paper, based on a review of the literature, 23 factors are identified ... -
Khalasa date palm leaf fiber as a potential reinforcement for polymeric composite materials
( Elsevier Ltd , 2021 , Article)The circular economy (CE) proposes a closed-loop supply chain-based production system and reduces the ecological systems' negative impacts. CE proposes a paradigm shift from a linear economy to a circular economy with the ... -
Kidney-on-a-chip: untapped opportunities
( Elsevier B.V. , 2018 , Article Review)The organs-on-a-chip technology has shown strong promise in mimicking the complexity of native tissues in vitro and ex vivo, and recently significant advances have been made in applying this technology to studies of the ... -
Kinematically admissible folding mechanisms for the progressive collapse of foam filled conical frusta
( Springer Netherlands , 2018 , Article)In this paper, the progressive collapse of foam filled conical frusta is investigated analytically using four different kinematically admissible folding mechanisms with varied straight folds. Comparisons are made between ... -
Laboratory-scale pull-out tests on a geothermal energy pile in dry sand subjected to heating cycles
( National Research Council of Canada , 2020 , Article)Ground source heat pumps coupled with energy piles operate intermittently, subjecting the piles to temperature cycles throughout their lifetime. The research presented in this paper focuses on studying the thermomechanical ... -
Large eddy simulation of surge inception and active surge control in a high speed centrifugal compressor with a vaned diffuser
( Elsevier , 2016 , Article)In this study, we present a numerical investigation of active surge control and performance improvement for an aero engine centrifugal compressor (NASA CC3) using self-recirculating bleed slots with different bleeding ... -
Large eddy simulation of surge inception and active surge control in a high speed centrifugal compressor with a vaned diffuser
( Elsevier Inc. , 2016 , Article)In this study, we present a numerical investigation of active surge control and performance improvement for an aero engine centrifugal compressor (NASA CC3) using self-recirculating bleed slots with different bleeding ... -
Large-eddy simulation of the flow in Z-Shape duct
( Cogent OA , 2020 , Article)A numerical study is conducted of the transient flow in a z-shape three-dimensional duct using large-eddy simulation (LES) with dynamic eddy viscosity subgrid-scale (SGS) model with a fully structured grid system. The ... -
Lean behavior in implementing lean process management
( INSInet Publication , 2009 , Article)Lean is one of the popular concept has been practiced in most company. However, there are a lot of companies who implement lean are not realized whether lean level of company is improve or relegate. Thus, it is important ... -
Life cycle air emissions and social human health impact assessment of liquified natural gas maritime transport
( MDPI , 2021 , Article)Air pollution, which causes over seven million deaths per year, is the most significant and specifically related to health impacts. Nearly 90% of the urban population worldwide is exposed to pollution not meeting the World ... -
Life Cycle Cost Analysis for Variable Refrigerant Flow (VRF) and Constant Refrigerant Flow (CRF) Air Conditioning Systems in Arid Climate: Case Study in Qatar
( Qatar University Press , 2021 , Poster)All over the world, there is a call to encourage sustainable energy thinking and implementation. In the heating, ventilation and air conditioning field, the rise of the variable refrigerant flow systems has made a big ... -
Life cycle sustainability assessment of autonomous heavy-duty trucks
( Wiley , 2020 , Article)Connected and automated vehicles (CAVs) are emerging technologies expected to bring important environmental, social, and economic improvements in transportation systems. Given their implications in terms of air quality and ... -
Life cycle sustainability assessment of sport utility vehicles: The case for Qatar
( Springer Verlag , 2020 , Article)Electric vehicle technologies are attractive alternatives to traditional vehicles towards achieving sustainable transportation. The adoption of these technologies has a great potential in reducing road transportation ... -
Lifted polynomial size formulations for the homogeneous and heterogeneous vehicle routing problems
( Elsevier B.V. , 2017 , Article)We propose compact formulations for the symmetric and asymmetric capacitated vehicle routing problems. These formulations are obtained by lifting, using the Reformulation-Linearization Technique, a novel polynomial size ... -
Light-Controlled Growth Factors Release on Tetrapodal ZnO-Incorporated 3D-Printed Hydrogels for Developing Smart Wound Scaffold
( John Wiley and Sons Inc , 2021 , Article)Advanced wound scaffolds that integrate active substances to treat chronic wounds have gained significant recent attention. While wound scaffolds and advanced functionalities have previously been incorporated into one ... -
Linear stability analysis of finite length journal bearings in laminar and turbulent regimes
( SAGE Publications Ltd , 2017 , Article)Dynamic coefficients of a finite length journal bearing are numerically calculated under laminar and turbulent regimes based on Ng-Pan-Elrod and Constantinescu models. Linear stability charts of a flexible rotor supported ... -
Locations of Temporary Distribution Facilities for Emergency Response Planning
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Resource planning in emergency response phase is challenging primarily because the resources have to be delivered to the affected regions in a timely manner and in right quantities. Disasters such as the hurricanes, epidemics ...