Results 21 to 30 of about 4,915 (262)

Quasi-unsteady Flow Field Computation and Performance Prediction of Contra-Rotating Fan [PDF]

MATEC Web of Conferences, 2020
Discussion of numerical flow field prediction with two rotor-stator interface models is presented in the paper. The mixing plane and harmonic models are applied to contra rotating fan. Both models confirmed good performance and high power density leading
Červenka Bystrík, Holubčík Michal, Malcho Milan   +2 more
doaj   +1 more source

The crystal structure of the Borrelia burgdorferi nicotinamidase BBE22 resolves a long‐standing annotation error

FEBS Open Bio, EarlyView.
The crystal structure of Borrelia burgdorferi nicotinamidase (PncA/BBE22) reveals the correct full‐length protein initiated from a non‐canonical AUU start codon. The structure validates previous biochemical findings and resolves a long‐standing annotation error, demonstrating that the truncated database sequence is structurally incompatible with the ...
Kalvis Brangulis
wiley   +1 more source

Investigation on optimization of centrifugal fan impeller based on the blade angle distribution law

Advances in Mechanical Engineering
Centrifugal fans are widely used in various industries. When the efficiency of the centrifugal fan is low, it is often desired to improve its efficiency by replacing the impeller and keeping other components unchanged. The blade angle distribution on the
Shen Chun-feng, Zhang Zi-chao, Xie Fang-wei, Fang Shu-peng, Liu Fei   +4 more
doaj   +1 more source

Realizable k-ε Model-Based Gradual-Radius Volute Tongue on Aerodynamic Performance and Noise of Multi-Wing Centrifugal Fan

Applied Sciences
The multi-wing centrifugal fan is an important part of air conditioning systems, particularly in the automotive domain. Due to the compact structure and short blade passage of the fan, it may reduce the aerodynamic performance and generate noise.
Yizhe Huang, Hening Zhang, Ziyi Liu, Xin Zhan, Ren Xu, Runze Chen   +5 more
doaj   +1 more source

MR Continuously Variable Transmission Driven by SMA for Centrifugal Fan in Nuclear Power Plant

Science and Technology of Nuclear Installations, 2012
The running efficiency of centrifugal fan affects the economical efficiency of the ventilation system. In this paper, we proposed a continuously variable transmission system based on magnetorheological fluid and shape memory alloy for improving the ...
Jianzuo Ma, Hongyu Shu, Jin Huang
doaj   +1 more source

Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones

Advanced Engineering Materials, EarlyView.
A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell, Martha Leach, Hongtao Song, Carolyn Seepersad   +3 more
wiley   +1 more source

Blade Crack Detection of Centrifugal Fan Using Adaptive Stochastic Resonance

Shock and Vibration, 2015
Centrifugal fans are widely used in various industries as a kind of turbo machinery. Among the components of the centrifugal fan, the impeller is a key part because it is used to transform kinetic energy into pressure energy.
Bingbing Hu, Bing Li
doaj   +1 more source

Swelling‐Programmed Topographical Guidance for Dynamic Spheroid Self‐Assembly via a Mechanochemical Hydrogel Niche

Advanced Functional Materials, EarlyView.
A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam, Seon Yeong Chae, Young Woo Kwon, Hye Jin Heo, Hye Rin Lee, Ji Hyeok Lee, Dong‐Wook Han, Yun Hak Kim, Suck Won Hong   +8 more
wiley   +1 more source

Shaping Matter with Acoustic Waves: From Particles to Functional Structures

Advanced Functional Materials, EarlyView.
Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg, Shelly Zlotnikov, Maya Fiorentino, Yuval Elias, Ornit Nagler‐Avramovitz, Hagay Shpaisman   +5 more
wiley   +1 more source

A Review of Bionic Structures in Control of Aerodynamic Noise of Centrifugal Fans

Energies, 2023
Due to the complexity of the working conditions and the diversity of application scenarios, the normal operation of a fan, whether volute tongue, volute shell surface, or blade, often encounters some unavoidable problems, such as flow separation, wear ...
Wenqiang Zhou, Peijian Zhou, Chun Xiang, Yang Wang, Jiegang Mou, Jiayi Cui   +5 more
doaj   +1 more source