Results 31 to 40 of about 284 (135)
The aerodynamic noise characteristic of a multi-blade centrifugal fan was studied by using numerical analysis and experimental test methods respectively. The unsteady flow dynamics analysis method and aeroacoustics based on finite element method were used to predict the spectral characteristics of noise of the fan.
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Flexible perovskite solar modules: Fabrication strategies and future prospects
We first systematically summarized the fabrication strategies for flexible perovskite solar modules, including scalable coating and printing, interface engineering, low‐temperature crystallization, and mechanical reliability design. Then we emphasize how process control, material design, and module integration work together to enable high‐performance ...
Nan Wang +5 more
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Fully 3D‐Printed Wave‐Wound Electromagnetic Motors
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe +4 more
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The Radial Force (RF) distribution under different cutting angles is presented in Figure 1. Generally, the distribution of RF displays divergence across different flow conditions. The pattern of force distribution reveals a total of 24 peaks, which corresponds to the number of blades of the impeller of the SCP.
Kofi Asamoah Adu‐Poku +3 more
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Scalable Fabrication of Perovskite Solar Cells and Modules
The key factors governing scalable perovskite solar modules, including large‐area fabrication, interconnection design, encapsulation, and device performance, involve balancing trade‐offs among efficiency, stability, and manufacturability, while employing processing strategies to mitigate non‐uniform crystallization and cell‐to‐module losses.
Zhuoxu Liu +4 more
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During the operation of the longitudinal axis flow threshing device of a combine harvester, the threshed materials form accumulations and blockages on both sides of the screen surface, severely affecting the harvesting process.
Longhai Wang +4 more
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Abstract The presently most densely sampled molecular phylogeny of the widespread New World subtribe Gonolobinae is presented, including about 35% of the ca. 520 species. Sampling focused on an even representation of the three main areas of total Gonolobinae distribution, South America, Central/North America, and the West Indian Islands, and the ...
Sigrid Liede‐Schumann +4 more
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ABSTRACT Soybean is a critical source of protein and vegetable oil worldwide. Expanding its cultivation into salinity lands represents a promising strategy for increasing production; however, soil salinity severely limits soybean growth by disrupting physiological and metabolic homeostasis.
Wanying Zhang +13 more
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A heat pump dryer usually adopts a centrifugal fan with multi-blades for generating large flow rate of air, but faces the problem of high aerodynamic noise. The application of bionic serrated blades instead of straight-edged blades in fans is a promising
Wenyi Zhou +7 more
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Research on Aerodynamic Noise Calculation and Noise Reduction Design of Multi-blade Centrifugal Fan
Proceedings of the ICA 2019 and EAA Euroregio : 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019 : 9-13 September 2019, Aachen, Germany / proceedings editor: Martin Ochmann, Michael Vorländer, Janina Fels 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019, ICA 2019, Aachen, Germany, 9 Sep 2019 - 13 ...
Huang, Jin An +2 more
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