Alex Comfort, Teresa A. Jones, John R. Martyr, J.W. Ecklin, Madsen Pirie, Douglas Dodds-Parker, Malcolm Gammie, Christina Darell-Brown, Antoine Vassallo, Mary Ellen Sherry, Eduardo Erica, George Skeete, Mio Paul Sylvester,
... World Of Transport The Dutch qualm disease Barclays Pendar British Airways Cathay Pacific Ask not only what ...
1982 - Gale Group | The Economist
Mohammad-Reza Pendar, Sílvio Cândido, José Páscoa,
The impetus of the current three-dimensional Eulerian–Lagrangian work is to analyze the impact of simultaneously using the inventive high-voltage conductors and Nitrotherm spraying technique for maximizing the industrial painting process efficiency. This investigation employs high-fidelity computational fluid dynamics (CFD) results in deep learning models as an input dataset. The novel conductors are called high-voltage retractable blades (HVRB) and high-voltage adjustable control-ring (HVACR) mounted ...
Tópico(s): Aerosol Filtration and Electrostatic Precipitation
2023 - American Institute of Physics | Physics of Fluids
Jeremy Rundall, Timothy Baker, Jeremy Bugler, (Dr) J Rose Principal, H B Dehn Clerk, Richard Buckle, Charles Raw, R. B., Patrick Campbell's, Elizabeth Nicholas, Harold Hobson, Kingsley Martin, J A James, Russell Hillsdon Director, Francis Wyndham, R Hermelin, Kenneth Pearson, P Snaith, Anthony Vice Editor, Antony Terry, Roger Nuttall, Ronald Sheppard Managing Editor, A L Poland, Moira Keenan, Leonard Schapiro, Julian Symons, Cal McCrystal, Elizabeth Good, John Pearson, Montague Haltrecht, James Tye Controller, Barrie Meller, John Russell, Jack Cox, Mark Ottaway, Caroline Combe, Linda Blandford, Max Marquis, Timothy Giles, Derek Prouse, Philip Clarke, Derek Jewell, Laurence Clark, Michel Gabrysiak, Edmund Stevens, E. C., Ruth Hall, Frank Giles, A J Heal, Robin Marlar, Robert Troop, Malcolm Southan, Nicolson, Cyril Connolly, James Tucker, Anthony Vice, (Rev) Francis J Ripley, David Holden, Nicholas Evans, Frank Dorsey, Meera Rohit, Peter Wilsher, Peter Cranmer, Alan Houghton Brodrick, Roger Mortimer, Lillian Hellman, Bryan Silcock's, Ernestine Carter, June Ducas, Kenneth Pendar, Mary Conroy, Desmond Shawe-Taylor, K C Nash, Jean-Paul Vincent, Gwen Nuttall, Brian Silcock, Charles Fox, Stephen Aris, John Fisher, Atholl Still, Lanning Roper, Tim Heald, Lorna Wood, W M Greenway, Felix Aprahamian, David Leitch, Henry Longhurst, Lewis Chester, R L C Foottit, James Margach Political Correspondent, Christopher Ricks, Hunter Davies, Michael Moynihan, Brian Glanville, Keith Richardson, Colin Chapman, Michael Green, Professor A J Merrett, C. H. O'd. Alexander, Timothy Brown, George Schwartz, Michael Parkinson, Phillip Knightley, Julian Mitchell, Harlow Unger, Nicholas Turner, Philip Jacobson, Norman Bogner, Kenneth Konstam, John Mattison, Nicholas Tomalin,
Bar on MP at cracked M4 flyover Stewart and Gunter clash over freeze law Part IV decision in the balance Jo Grimond attacks 'conjurer' Wilson Another Kennedy ...
1966 - Gale Group | Sunday Times HA GDA
Iman Ghasemian Sahebi, Seyed Pendar Toufighi, Mahdi Azzavi, Behzad Masoomi, Mohammad Hasan Maleki,
Purpose By replacing traditional fossil fuels, renewable energy (RE) has the potential to become an outstanding sustainable energy supply. However, owing to technological, economic, social and legal constraints, RE is still in its early stages of development. Hence, this paper aims to analyze the sustainable development hindrances in the RE supply chain (RESC). Design/methodology/approach Twenty-three hindrances to the sustainable development of the RE industry were investigated in this research, ...
Tópico(s): Energy and Environment Impacts
2023 - Emerald Publishing Limited | International Journal of Energy Sector Management
Bertie Vyse, R. Kemp Philp, Warder, Hernet, Geo L. Pendar,
Multiple Classified Advertising Items Dr. Livingstone and the African Tribes Notes of the Week Passing Events Where Shall we Go? Breach of Promise Case ...
1872 - Gale Group | Sunday Times HA GDA
Mohammad-Reza Pendar, Frederico Rodrigues, José Páscoa, Rui Lima,
The paint shop plant, as the largest energy consumer in the automotive manufacturing process, requires special attention to optimize energy efficiency and thermal management, reduce environmental impact and diminish the total costs to improve marketability. The current review covers the description of the automotive paint shop, recognition of the paint film layers, characterization of the paint spray applicators, evolution of their technology's advancement, explanation of the coating processes development, ...
Tópico(s): Surface Modification and Superhydrophobicity
2022 - American Institute of Physics | Physics of Fluids
Pendar Alirezazadeh, Michael Schirrmann, Frieder Stolzenburg,
Abstract In recent years, deep learning-based plant disease classification has been widely developed. However, it is challenging to collect sufficient annotated image data to effectively train deep learning models for plant disease recognition. The attention mechanism in deep learning assists the model to focus on the informative data segments and extract the discriminative features of inputs to enhance training performance. This paper investigates the Convolutional Block Attention Module (CBAM) ...
Tópico(s): Leaf Properties and Growth Measurement
2022 - Springer Science+Business Media | Gesunde Pflanzen
Mohammad-Reza Pendar, José Páscoa,
Abstract The impetus of the present bio-inspired work is to investigate the impact of simultaneously using wavy leading-edge (WLE) airfoils in combination with curved multidielectric barrier discharge (DBD) plasma actuators as hybrid passive and active flow control mechanisms, respectively. A precise distinction of the produced frequency and noise signals, altogether with the acoustic effect of using WLE and DBD plasma actuators, is herein analyzed with precision. Two specific DBD plasma actuators ...
Tópico(s): Aerodynamics and Fluid Dynamics Research
2022 - ASM International | Journal of Fluids Engineering
Amin Nakhostin-Ansari, Gregory D. Zimet, Mohammad Saeid Khonji, Faezeh Aghajani, Azin Teymourzadeh, AmirAli Rastegar Kazerooni, Pendar Pirayandeh, Reyhaneh Aghajani, Sepideh Safari, Kamand Khalaj, Amir Hossein Memari,
We aimed to assess the Iranian people’s attitude and confidence in the COVID-19 vaccine, their concerns about the safety of vaccines, and their reasons for accepting or rejecting the COVID-19 vaccine. We conducted a web-based cross-sectional study with a mixed qualitative–quantitative approach from December 2020 to February 2021. Our questionnaire consisted of a COVID-19 vaccine attitude questionnaire, a COVID-19 vaccine confidence inventory, a modified vaccine safety scale, and questions about ...
Tópico(s): Misinformation and Its Impacts
2022 - Multidisciplinary Digital Publishing Institute | Vaccines
Pendar Alirezazadeh, Fatemeh Rahimi-Ajdadi, Yousef Abbaspour‐Gilandeh, Niels Landwehr, Hamed Tavakoli,
Assessing and control of soil aggregate size during tillage operations are important to guarantee a proper seedbed preparation and in consequence a high crop yield, as well as to achieve a high resource use efficiency. In this research, a convolutional neural network (CNN) called SoilNet is proposed to classify images of nine different soil aggregate sizes taken from three different heights of 60, 80 and 100 cm (the higher the height, the lower the images’ resolution). SoilNet combines a residual ...
Tópico(s): Machine Learning and Data Classification
2021 - Elsevier BV | Computers and Electronics in Agriculture
Mohammad-Reza Pendar, José Páscoa,
This paper presents a numerical performance evaluation of the electrostatic rotary bell sprayer (ERBS) with a particular focus on droplet charge, electric field, and ambient conditions through the implementation of a high-voltage control-ring field pattern effect into the fully turbulent airflow and by including the atomized droplets discrete phase. The simulation shows that the inclusion of droplet charging and electric field coupling, with different parametric values, significantly impacts the ...
Tópico(s): Plant Surface Properties and Treatments
2021 - American Institute of Physics | Physics of Fluids
Hamed Tavakoli, Pendar Alirezazadeh, Ava Hedayatipour, A.H. Banijamali Nasib, Niels Landwehr,
In recent years, many efforts have been made to apply image processing techniques for plant leaf identification. However, categorizing leaf images at the cultivar/variety level, because of the very low inter-class variability, is still a challenging task. In this research, we propose an automatic discriminative method based on convolutional neural networks (CNNs) for classifying 12 different cultivars of common beans that belong to three various species. We show that employing advanced loss functions, ...
Tópico(s): Leaf Properties and Growth Measurement
2020 - Elsevier BV | Computers and Electronics in Agriculture
Mohammad-Reza Pendar, Esmaeil Esmaeilifar, Ehsan Roohi,
The present study seeks to conduct numerical investigations of the cavitating flow characteristics around a sinusoidal wavy leading edge (WLE) 3-D hydrofoil underlying a NACA 634–021 profile with an aspect ratio of 4.3. Cavitational and non-cavitational characteristics of hydrofoils are numerically examined at a chord-based Reynolds number of 7.2 × 105. The sinusoidal leading edge geometries include two WLE amplitudes of 5% and 25% and two WLE wavelengths of 25% and 50% of the mean chord length. We ...
Tópico(s): Hydraulic and Pneumatic Systems
2020 - Elsevier BV | International Journal of Multiphase Flow
Mohammad-Reza Pendar, José Páscoa,
The impetus of the current paper is to conduct numerical evaluations about the fundamental behaviors of the flow in an electrostatic rotary bell sprayer (ERBS) during the formation of the droplets and depositing on a target. The effect of operational parameters like bell rotational speed, shaping air and paint flow rate, electrical charge values and droplet distributions are considered precisely. Here, an Eulerian-Lagrangian algorithm that contains a model for airflow field, spray dynamics, electric ...
Tópico(s): Plant Surface Properties and Treatments
2020 - Elsevier BV | International Journal of Heat and Mass Transfer
Mohammad-Reza Pendar, José Páscoa,
Violent respiratory diseases, i.e., coronavirus (COVID-19), spread through saliva in coughs and sneezes or are even exhaled in the form of microbial pathogen micro-droplets. Therefore, in this work, a comprehensive fully coupled Eulerian-Lagrangian method has been applied for infection control, thus leading to a deeper understanding of the saliva-disease-carrier droplet transmission mechanisms and also of their trajectory tracking by using the OpenFOAM package. This model determines the droplet-air ...
Tópico(s): Infection Control and Ventilation
2020 - American Institute of Physics | Physics of Fluids
Alexander Matta, Hodjat Pendar, Francine Battaglia, Javid Bayandor,
Tópico(s): Aerospace Engineering and Energy Systems
2020 - Elsevier BV | Journal of Bionic Engineering
Farzad Ebrahimi, Pendar Hafezi, Ali Dabbagh,
In this study, the buckling analysis of a Graphene oxide powder reinforced (GOPR) nanocomposite shell is investigated. The effective material properties of the nanocomposite are estimated through Halpin-Tsai micromechanical scheme. Three distribution types of GOPs are considered, namely uniform, X and O. Also, a first-order shear deformation shell theory is incorporated with the principle of virtual work to derive the governing differential equations of the problem. The governing equations are solved ...
Tópico(s): Structural Analysis and Optimization
2020 - Elsevier BV | Defence Technology
Hodjat Pendar, Jessica Aviles, Khaled Adjerid, Caroline Schoenewald, John J. Socha,
Abstract The insect circulatory system contains an open hemocoel, in which the mechanism of hemolymph flow control is ambiguous. As a continuous fluidic structure, this cavity should exhibit pressure changes that propagate quickly. Narrow-waisted insects create sustained pressure differences across segments, but their constricted waist provides an evident mechanism for compartmentalization. Insects with no obvious constrictions between segments may be capable of functionally compartmentalizing the ...
Tópico(s): Physiological and biochemical adaptations
2019 - Nature Portfolio | Scientific Reports
Mohammad-Reza Pendar, José Páscoa,
Here we implemented a 3D comprehensive Eulerian-Lagrangian model in order to investigate the electrostatic spray transfer processes in the high-speed rotary bell sprayer. This efficient algorithm contains spray dynamics, airflow, paint droplets tracking and an electrostatic effect to simulate atomization. The algorithm is implemented using the OpenFOAM package. A solver for the particle trajectory was used to illustrate the process of spray transport and also the interaction of the airflow and the ...
Tópico(s): Fluid Dynamics and Heat Transfer
2019 - Elsevier BV | International Journal of Heat and Fluid Flow
Mohammad Yazdi, Pendar Hafezi, Rouzbeh Abbassi,
In highly complex industries, capturing and employing expert systems is significantly important to an organization's success considering the advantages of knowledge-based systems. The two most important issues within the expert system applications in risk and reliability analysis are the acquisition of domain experts' professional knowledge and the reasoning and representation of the knowledge that might be expressed. The first issue can be correctly handled by employing a heterogeneous group of ...
Tópico(s): Multi-Criteria Decision Making
2019 - Elsevier BV | Journal of Loss Prevention in the Process Industries
Arman Kolahan, Ehsan Roohi, Mohammad-Reza Pendar,
In this paper, wavelet analysis of the cavitating flow over a sphere is reported. Unsteady and dynamic behaviors of cavitation were captured using large eddy simulation (LES) turbulence approach and Sauer mass transfer models. Numerical simulation is implemented under the framework of OpenFOAM within the interPhaseChangeFoam solver. The simulation is conducted over a wide range of cavitation numbers. Two more essential variations, pressures and kinetic energies, were considered at specific points ...
Tópico(s): Water Systems and Optimization
2019 - Elsevier BV | Ocean Engineering
Alexander Matta, Javid Bayandor, Francine Battaglia, Hodjat Pendar,
Scombrid fish lunate caudal fins are characterized by a wide range of sweep angles. Scombrid that have small sweep-angle caudal fins move at higher swimming speeds, suggesting that smaller angles produce more thrust. Furthermore, scombrids occasionally use high angles of attack (AoA) suggesting this also has some thrust benefit. This work examined the hypothesis that a smaller sweep angle and higher AoA improved thrust in swimmers by experimentally analyzing a robophysical model. The robophysical ...
Tópico(s): Fish Ecology and Management Studies
2019 - The Company of Biologists | Biology Open
Jacob A. Hill, Kevin J. Endres, Pendar Mahmoudi, M. W. Matsen, Chrys Wesdemiotis, Mark D. Foster,
The preference for a shorter chain component at a polymer blend surface impacts surface properties key to application-specific performance. While such segregation is known for blends containing low molecular weight additives or systems with large polydispersity, it has not been reported for anionically polymerized polymers that are viewed, in practice, as monodisperse. Observations with surface layer matrix-assisted laser desorption ionization time-of-flight mass spectrometry (SL-MALDI-ToF-MS), which ...
Tópico(s): Analytical chemistry methods development
2018 - American Chemical Society | ACS Macro Letters
Pendar Mahmoudi, W. S. R. Forrest, T. M. Beardsley, M. W. Matsen,
This study addresses entropic segregation effects at the surfaces of monodisperse and bidisperse melts. For the monodisperse melts, we focus on the segregation of chain ends to the surface, and for the bidisperse melts, we examine the segregation of short polymers to the surface. Universal shapes have been predicted for their concentration profiles, but the derivations rely on the mean-field approximation, which only treats the excluded-volume interactions in an approximate manner. To test whether ...
Tópico(s): Material Dynamics and Properties
2018 - American Chemical Society | Macromolecules
Pendar Alirezazadeh, Behzad Hejrati, Alireza Monsef, Abdolhossein Fathi,
Breast cancer has high incidence rate compared to the other cancers among women. This disease leads to die if it does not diagnosis early. Fortunately, by means of modern imaging procedure such as MRI, mammography, thermography, etc., and computer systems, it is possible to diagnose all kind of breast cancers in a short time. One type of BC images is histology images. They are obtained from the entire cut-off texture by use of digital cameras and contain invaluable information to diagnose malignant ...
Tópico(s): Radiomics and Machine Learning in Medical Imaging
2018 - Elsevier BV | Journal of Applied Biomedicine
John Queenan, Pendar Farahani, Behrouz Ehsani-Moghadam, Richard Birtwhistle,
Herpes zoster (HZ) is a common infection in Canada that can result in serious and long-term complications. People with diabetes may be at an increased risk for HZ. The objectives of this study were to develop and validate a case definition of HZ diagnosis based on electronic medical records; determine a prevalence estimate for HZ in adult patients in the Canadian Primary Care Sentinel Surveillance Network (CPCSSN) and assess the association between HZ and diabetes.This was a retrospective cross-sectional ...
Tópico(s): Cytomegalovirus and herpesvirus research
2017 - Elsevier BV | Canadian Journal of Diabetes
Pendar Mahmoudi, M. W. Matsen,
Chain ends are known to have an entropic preference for the surface of a polymer melt, which in turn is expected to cause the short chains of a polydisperse melt to segregate to the surface. Here, we examine this entropic segregation for a bidisperse melt of short and long polymers, using self-consistent field theory (SCFT). The individual polymers are modeled by discrete monomers connected by freely-jointed bonds of statistical length a , and the field is adjusted so as to produce a specified surface ...
Tópico(s): Phase Equilibria and Thermodynamics
2017 - Springer Science+Business Media | The European Physical Journal E
Mohammad-Reza Pendar, Ehsan Roohi,
Here we examine partial and supercavitation over a sphere at a constant Reynolds number of 1.5 × 106 and a broad range of cavitation numbers (0.36 <σ< 1). Large eddy simulation (LES) and Sauer mass transfer model were used to simulate the dynamic and unsteady cavitation around the sphere. Also, the compressive volume of fluid (VOF) method is used to track the cavity interface. The two-phase flow solver of the OpenFOAM package, intephaseChangeFoam is employed. Large-eddy simulation of cavitating flow over ...
Tópico(s): Hydraulic and Pneumatic Systems
2017 - Elsevier BV | International Journal of Multiphase Flow
Seyede Zohreh Mirahmadi‐Zare, Alireza Allafchian, Fatemeh Aboutalebi, Pendar Shojaei, Yahya Khazaie, Kianoush Dormiani, Liana Lachinani, Mohammad Hossein Nasr‐Esfahani,
Super magnetic nanoparticle NiFe2O4 with high magnetization, physical and chemical stability was introduced as a core particle which exhibits high thermal stability (>97%) during the harsh coating process. Instead of multi-stage process for coating, the magnetic nanoparticles was mineralized via one step coating by a cheap, safe, stable and recyclable alumina sol-gel lattice (from bohemite source) saturated by nickel ions. The TEM, SEM, VSM and XRD imaging and BET analysis confirmed the structural ...
Tópico(s): Characterization and Applications of Magnetic Nanoparticles
2016 - Elsevier BV | Protein Expression and Purification
Tommy Dang, N. Pendar, Angus G. Forbes,
Abstract In this paper we introduce TimeArcs, a novel visualization technique for representing dynamic relationships between entities in a network. Force‐directed layouts provide a way to highlight related entities by positioning them near to each other Entities are brought closer to each other (forming clusters) by forces applied on nodes and connections between nodes. In many application domains, relationships between entities are not temporally stable, which means that cluster structures and cluster ...
Tópico(s): Bioinformatics and Genomic Networks
2016 - Wiley | Computer Graphics Forum