Results 51 to 60 of about 4,918 (254)

Optimization Design of Multi-Blade Centrifugal Fan Based on Variable Weight PSO-BP Prediction Model and Multi-Objective Beluga Optimization Algorithm

Applied Sciences
Multi-blade centrifugal fans are the main workhorse of automotive air conditioners, and the performance of these fans affects riding comfort. This article proposes a prediction model and a multi-objective optimization algorithm and applies them to the ...
Wenyang Jin, Jiaxuan Wang, Junyu Li, Ren Xu, Ming Zhou, Qibai Huang   +5 more
doaj   +1 more source

Experimental and Numerical Investigation for Predicting the Performance of Voluteless Centrifugal Fan Rotors [PDF]

Journal of Applied Fluid Mechanics
A better understanding of the flow field is crucial for improving the design of a turbomachine. In this work we investigate the performance of voluteless centrifugal fan rotors.
D. O. Maestre Di Cioccio, W. de Oliveira, R. G. Ramirez Camacho   +2 more
doaj   +1 more source

Food inflation pass‐through from agricultural imports in a small open economy

American Journal of Agricultural Economics, EarlyView.
Abstract This paper develops a new framework for quantifying cost pass‐through in a small open economy by estimating firm‐level markup responses to agricultural import price shocks. We show theoretically that markup adjustments depend on firms' reliance on imported inputs and demand curvature, generating heterogeneous inflationary effects across firm ...
Minseong Kang, Seungki Lee
wiley   +1 more source

Effects of Particle Size and Concentration on Erosion Wear and Aerodynamic Performance of a Centrifugal Fan [PDF]

Journal of Applied Fluid Mechanics
In the mining and industrial cooling sectors, centrifugal fans often operate under air-solid two-phase flow conditions, which result in severe erosive wear. Such wear markedly reduces fan efficiency and operational lifespan.
B. Luo, J. Xu, Z. Wang, H. Yang, W. Zhang, Y. Wei   +5 more
doaj   +1 more source

Integrating developmental and macroevolutionary approaches reveals a staminodial origin of all alternisepalous organs in Caryophyllaceae

American Journal of Botany, EarlyView.
Abstract Premise The identity of sterile floral organs in second‐whorl, alternisepalous positions within Caryophyllaceae remains contentious, having been described as staminodes, “petaloids,” or petals homologous with those of other Pentapetalae. Limited ingroup and outgroup sampling and floral developmental data and inadequate phylogenetic comparative
Riley J. Rees, Andrea D. Appleton, John J. Schenk   +2 more
wiley   +1 more source

Degradation Mechanisms, Encapsulation‐Based Stabilization, and Analytical Detection of Vitamin A

Journal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Vitamin A is an important lipid‐soluble micronutrient essential for vision, immune function, and overall growth and development. However, vitamin A is unstable and susceptible to environmental factors because of its conjugated structure and inherent chemical reactivity.
Latheesha Abeywardana, Thambaramala V. Gamage, Tanoj K. Singh, Shuaifei Zhao, Amy Logan, Lingxue Kong   +5 more
wiley   +1 more source

Effect of Gurney Flap Configuration on the Performance of a Centrifugal Fan

Journal of Applied Fluid Mechanics, 2019
The present investigation is conducted to study the effect of Gurney flap configuration on the performance of a centrifugal fan at different Reynolds numbers.
M. Suresh, N. Sitaram
doaj   +2 more sources

Unsteady Fast Random Particle Mesh method for efficient prediction of tonal and broadband noises of a centrifugal fan unit

AIP Advances, 2015
In this study, efficient numerical method is proposed for predicting tonal and broadband noises of a centrifugal fan unit. The proposed method is based on Hybrid Computational Aero-Acoustic (H-CAA) techniques combined with Unsteady Fast Random Particle ...
Seung Heo, Cheolung Cheong, Taehoon Kim
doaj   +1 more source

Ontogeny of murine bony semicircular canal form

The Anatomical Record, EarlyView.
Abstract The labyrinthine geometry and functional anatomy of the semicircular canals have intrigued scientists for decades, and there has been considerable interest in understanding how these complex structures grow and develop with evidence emerging from human studies that size maturation occurs exceptionally early by comparison with other systems ...
Marcela Cárdenas‐Serna, Nathan Jeffery   +1 more
wiley   +1 more source

‘…It was my choice to see how I can acquire this Western world education… and I'm happy…’: Structuration and the dialectic nature of being a Nigerian university student in the UK

British Educational Research Journal, EarlyView.
Abstract This paper examines the experiences of Nigerian cross‐border students in UK higher education, focusing on how colonial legacies continue to shape the interplay between structure and agency. Three key themes emerged in the analysis of the data: First, the persistence of a ‘West is Best’ mentality reflects the internalisation of colonial ...
Jennifer Marshall, Jack Bryne Stothard
wiley   +1 more source