Results 81 to 90 of about 50,603 (296)

Design Optimization of Cleaning Fan Blades for Rice Combine Harvesters: An Experimental and CFD Simulation Study

open access: yesApplied Sciences
Recent advancements in rice breeding have significantly increased production in China. However, high-yielding varieties require strong airflow for effective cleaning.
Million Eyasu Wada, Zhenwei Liang
doaj   +1 more source

Structural dynamics of shroudless, hollow fan blades with composite in-lays [PDF]

open access: yes
Structural and dynamic analyses are presented for a shroudless, hollow titanium fan blade proposed for future use in aircraft turbine engines. The blade was modeled and analyzed using the composite blade structural analysis computer program (COBSTRAN ...
Aiello, R. A.   +2 more
core   +1 more source

Monolithic centrifugal microfluidic platform for bacteria capture and concentration, lysis, nucleic-acid amplification, and real-time detection [PDF]

open access: yes, 2009
We report the design, fabrication, and characterization of a polymer centrifugal microfluidic system for the specific detection of bacterial pathogens.
Barry, Thomas   +5 more
core   +1 more source

Numerical and Experimental Study of Mixing Characteristics in a Spiral Micromixer

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Significant enhancement of mixing performance can be achieved by Dean vortices in spiral channels. In order to deeply explore the mixing mechanisms and variation laws in spiral micromixers, this work designed a spiral micromixer and adopted a combined method of experiments and numerical simulations to analyze the mixing performance and ...
Anming Yang, Shiqing Zheng
wiley   +1 more source

The Optimization of the Geometry of the Centrifugal Fan at Different Design Points

open access: yesApplied Sciences
The optimization of the geometry of a centrifugal fan is performed at maximum power and high-efficiency design points (DPs) to improve impeller efficiency. Two design variables defining the shape of fan blade are selected for the optimization.
Paulius Ragauskas   +2 more
doaj   +1 more source

Low-Cost SpO2 Integrated Neonatal CPAP Device for Low Resource Setting

open access: yesMedical Devices: Evidence and Research, 2023
Ahmed Ali Dawud, Ahmed Mohammed Abagaro School of Biomedical Engineering, Jimma Institute of Technology, Jimma University, Jimma, EthiopiaCorrespondence: Ahmed Ali Dawud, Tel +251920846652, Email ahme8002@gmail.comIntroduction: More than 60% of preterm ...
Dawud AA, Abagaro AM
doaj  

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

open access: yesThe Anatomical Record, EarlyView.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx   +6 more
wiley   +1 more source

Cylindrical Magnetorheological Fluid Variable Transmission Controlled by Shape-Memory Alloy

open access: yesScience and Technology of Nuclear Installations, 2012
Centrifugal fan is an important component of a ventilation system in a nuclear power plant. In this paper, we proposed a magnetorheological speed-adjustment system controlled by shape-memory alloy for centrifugal fan. A theoretical analysis of the effect
Song Chen, Kailin Jian, Xianghe Peng
doaj   +1 more source

Energy-Saving Performance of Flap-Adjustment-Based Centrifugal Fan

open access: yesEnergies, 2018
The current paper mainly focuses on finding a more appropriate way to enhance the fan performance at off-design conditions. The centrifugal fan (CF) based on flap-adjustment (FA) has been investigated through theoretical, experimental, and finite element
Genglin Chen   +3 more
doaj   +1 more source

Decoding Pure Rotational Molecular Spectra for Asymmetric Molecules [PDF]

open access: yes, 2012
In this paper we demonstrate how asymmetric molecular rotational spectra may be introduced to students both "pictorially" and with simple formulae. It is shown that the interpretation of such spectra relies heavily upon pattern recognition.
Cooke, S. A., Ohring, P.
core   +3 more sources

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