Results 31 to 40 of about 239,240 (300)

Effect of axial spacing on rotating stall performance of FBCDZ-10-No20 contra-rotating fan

Meitan kexue jishu, 2023
Mining contra-rotating fan are prone to rotational stall when it operates at low flow rates, which seriously affects the operational stability. The unsteady flow in the full flow passage of a FBCDZ-10-No20 contra-rotating fan at five axial spacings was ...
Qingguang CHEN, Yanhui XU, Zhenjiang ZHANG, Wu GUO   +3 more
doaj   +1 more source

Theory and Design of Axial Flow Fan (Part III)

Transactions of the Japan Society of Mechanical Engineers, 1953
The condition that the axial flow fan is to be operated at maximum efficiency is to make the overall manometric efficiency maximum taking also the loss of pipe line which is connected the fan into consideration. We show a disign to obtain the maximum manometric efficiency, in two cases where the diameter of impeller is determined freely or given, when ...
IKUI, Takefumi, UEDA, Toshihiko
openaire   +4 more sources

A novel approach for the design of axial flow fan by increasing by-pass ratio in a constant-diameter turbofan

Propulsion and Power Research, 2020
The present study introduces an innovative aerodynamic redesign of an axial flow fan based on constant diffusion factor and radial equilibrium. All input design parameters such as mass flow rate, hub to tip ratio, aspect ratio, tip diameter and angular ...
Ali Shahsavari, Mahdi Nili-Ahmadabadi
doaj   +1 more source

Influence of axial spacing on stall development of FBCDZ-10-No20 mode contra-rotating fan

Meitan kexue jishu, 2023
The rotating fan is prone to instability such as stall and even surge when operating at low flow rates. In order to study the influence of axial spacings on the stall inception and its development and propagation process of a contra-rotating fan , a ...
Qingguang CHEN, Yanhui XU, Wu GUO, Zhenjiang ZHANG   +3 more
doaj   +1 more source

Study on the Flow Fluctuation in the Axial-Flow Fan : Part 1, Spectrum of the Total Pressure Fluctuation on the Flow in the Axial-Flow Fan

Transactions of the Japan Society of Mechanical Engineers, 1964
In the present paper, the spectra of total pressure fluctuation of flow for various operating conditions and measuring places are shown. They are obtained by a pick-up of condenser microphone type. These researches have brought the following conclusions : (1) The spectrum of fluctuation consists of the following two parts : i) The component, the ...
UEMATSU, Tokio, ADACHI, Tsutomu
openaire   +3 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Design and Performance Analysis of Blades Based on the Equal–Variable Circulation Method

Frontiers in Energy Research, 2021
With the aim of improving the aerodynamic performance of axial turbomachinery, a new type of blade is designed using the equal–variable circulation method.
D. Liang, C. Song, S. Liang, S. Wang, Y. Li, Z. Zhou   +5 more
doaj   +1 more source

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Effects of Inflow Distortion due to Hub Cap's Shape on the Performance of Axial Flow Fan

Journal of Fluid Science and Technology, 2008
Performance characteristics of an axial flow fan having distorted inlet flow have been investigated using numerical analysis. Two kinds of hub-cap, rounded and right-angled front shape, are tested to investigate the effect of inlet flow distortion on the
Choon-Man JANG, Seung-Man CHOI, Kwang-Yong KIM   +2 more
doaj   +1 more source