Results 61 to 70 of about 183,357 (179)

Innovative doped flaky FeSiCr interface synergy for developing bidisperse magnetorheological fluids with super‐performance

InfoScience, Volume 3, Issue 2, June 2026.
An excellent comprehensive performance bidisperse magnetorheological fluid (MRFs) was developed by blending self‐synthesized micron‐sized flaky FeSiCr particles with CIPs. Through the synergistic modification of particle properties, morphology and composition, this approach overcomes the challenges of achieving an optimal balance among key performance ...
Tianxiang Du, Penghui Zhao, Shiqiang Guan, Yinhao Diao, Zenghui Zhao, Hao Huang, Ning Ma, Yonghu Huang, Xufeng Dong   +8 more
wiley   +1 more source

Hovering of coaxial Trirotor helicopter constructed with coaxial mechanism driven by a motor

Nihon Kikai Gakkai ronbunshu, 2014
This paper proposes a coaxial trirotor helicopter constructed with coaxial mechanism driven by one motor. There two types of trirotor unmanned aerial vehicles (UAVs) are existed.
Yoshihiro TAKITA, Shinya OHKAWA, Hisashi DATE   +2 more
doaj   +1 more source

Applying Distinct CDMS Strategies to Observe Nonclassical Virus Capsid Assembly

Journal of Mass Spectrometry, Volume 61, Issue 6, June 2026.
ABSTRACT In conventional native mass spectrometry (MS), one faces severe limitations when challenged with heterogeneous, high‐mass samples, commonly failing to resolve clear peak distributions, and thus mass determination. Charge detection MS (CDMS) has emerged as a premier method to analyze these samples by determining mass‐to‐charge ratio (m/z) and ...
Lars Thiede, Anisha Haris, Tomislav Damjanović, Jocky C. K. Kung, Jürgen Müller‐Guhl, Ronja Pogan, Jennifer Rothe, Wiebke Schultze, Sanne Ugelstad, David Eatough, Kevin Giles, Steve Preece, Keith Richardson, Jakub Ujma, Charlotte Uetrecht   +14 more
wiley   +1 more source

Applications of Twin Counter-Rotating Common-Axis Rotor Systems in Modern Rotorcraft and UAVs

Engineering Proceedings
This study represents a comprehensive analysis of the implementation of twin counter-rotating common-axis (coaxial) rotor systems in the design process and technical application of rotorcraft and Unmanned Aerial Vehicles (UAVs).
Gabriel Georgiev, Vladimir Serbezov
doaj   +1 more source

Aerodynamic Interactions Between the Propeller and Other Components in a Coaxial Compound Helicopter [PDF]

Journal of Applied Fluid Mechanics
The coaxial compound helicopter represents a promising configuration for enhancing maximum flight speed. This configuration features a pair of coaxial rigid rotors and a rear-located propeller.
Y. Cao, M. Wang
doaj   +1 more source

Study on Vibration Reduction Technology of Coaxial Rigid Rotor Based on High‑Order Harmonic Control

Nanjing Hangkong Hangtian Daxue Xuebao
Aiming at the issue of large vibration loads during high-speed forward flight of coaxial helicopters， the implementation of high-order harmonic control（HHC） on the coaxial rotors system is considered for active vibration suppression control.
WEI Wulei, YU Zhihao, FAN Feng, ZHAO Jinrui   +3 more
doaj   +1 more source

A Comparison Study on Co- and Counterrotating Dual-Rotor System with Squeeze Film Dampers and Intermediate Bearing

Shock and Vibration, 2017
Nonlinear dynamic model of a coaxial rotor system was established with a method combining the finite element method and the fixed interface modal synthesis method.
Fei Wang, Gui-Huo Luo, Shu Yan, Hai-Tao Cui   +3 more
doaj   +1 more source

Development of a Coaxial Rotor Flying Robot for Observation

Journal of Control, Automation and Systems Engineering, 2007
A coaxial rotor flying robot is developed for surveying and reconnoitering various circumstances under calamity environment. The robot has two contrarotating rotors on a common axis, an embedded microcontroller, an IMU(Inertial Measurement Unit), an IR sensor for height control, a micro camera for surveillance, ultrasonic position sensors and wireless ...
Min-Sung Kang, Jin-Ok Shin, Sang-Deok Park, Se-Hee Whang, Kuk Cho, Duk-Hoo Kim, Sang-Ki Ji   +6 more
openaire   +2 more sources

Geometric Sensitivity and Performance–Flow Field Coupling in Coaxial and Staggered Rotor Systems

International Journal of Aerospace Engineering
Multirotor aerodynamic interference exerts a remarkable influence on the aerodynamic characteristics of distributed rotorcraft. It triggers complex flow structures and performance changes, whereas the inherent relationship between flow field ...
He Zhu, Yuhao Du, Huidong Chen, Hong Nie, Xiaohui Wei, Yin Yin   +5 more
doaj   +1 more source

Review for the Design and Experimental Study of a Coaxial Twin-rotor Mars Unmanned Aerial Vehicle

Space: Science & Technology
The thin atmosphere of Mars presents a necessary yet challenging flight environment for low-altitude flying vehicles or unmanned aerial vehicles. As a key technology, Martian unmanned aerial vehicles hold marked value and importance for scientific ...
Zhifang Ke, Yu Hu, Qingkai Meng, Yongjie Shu, Jinghan Tu, Molei Zhao, Shiyi Wei, Haitao Zhang, Bin Xu, Zhaopu Yao, Wei Wei   +10 more
doaj   +1 more source