Results 181 to 190 of about 4,153 (287)

Characterization of Structure, Properties, and Energetic Performance of a 1:1 Ammonium Dinitramide‐3,4‐Diaminofurazan Cocrystal

Propellants, Explosives, Pyrotechnics, EarlyView.
Ammonium dinitramide (ADN) and 3,4‐Diaminofurazan (DAF) form a 1:1 energetic cocrystal. We report its crystal structure and spectroscopic signature and evaluate thermal stability, decomposition behavior, hygroscopicity, and combustion properties. Propellant performance calculations benchmark the material against guanylurea dinitramide (GuDN) and ...
Peter Schultz, Uwe Schaller, Thomas Heintz   +2 more
wiley   +1 more source

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

Journal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone, Mohammed Anteet, Pawandeep S. Matharu, Yara Almubarak   +3 more
wiley   +1 more source

A Self-Propelled Traveling-Wave Linear Ultrasonic Motor Based on End Excitation. [PDF]

Micromachines (Basel)
Lu D, Qian W, Sun N, Chen Y, Dong X, Chang B.   +5 more
europepmc   +1 more source

Exploring the Use and Impact of Composite Materials in Robotics: A Systematic Review

Journal of Field Robotics, EarlyView.
ABSTRACT Lightweight and high‐strength materials are important in robotics, as structural design impacts efficiency, payload capacity, and energy consumption. Composite materials, with their superior stiffness‐to‐weight ratios and multifunctional properties, offer clear advantages over conventional metals and polymers.
Doglas Negri, Gabriela Wessling Oening, Felipe Augusto Carvalho de Faria, Sarah Maria Schroeder, Ricardo De Medeiros   +4 more
wiley   +1 more source

Experimental validation and simulation of a U-Shaped elastic beam robot for stable running locomotion. [PDF]

Sci Rep
Khalifa W, Essam MA, Ghazy MR, El-Fadl AA.   +3 more
europepmc   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Nonlinear dynamics of a non-stationary rotor-disk-bearing system with rub-impact and geometric nonlinearity under non-ideal excitation. [PDF]

Sci Rep
Ghasemi MA, Bab S, Karamooz Mahdiabadi M.   +2 more
europepmc   +1 more source

Impacts of Fluorination at the Ortho‐Position of Carboxy Groups on Tetrakis(biphenyl)ethene‐Based Hydrogen‐Bonded Framework

Small, EarlyView.
This work provides new findings on the effect of fluorination on the substitution of TPE derivatives and the modulation of the structure and fluorescence properties of hydrogen‐bonded organic framework (HOF) of F‐CBPE. ABSTRACT Fluorination of building block molecules is one of the effective engineering approaches to modulate molecular assembly in ...
Takuto Fujii, Mario de la Hoz Tomás, Ryusei Oketani, Boiko Cohen, Ken‐ichi Otake, Kazuki Shiga, Norimitsu Tohnai, Abderrazzak Douhal, Ichiro Hisaki   +8 more
wiley   +1 more source

The impact of multidirectional excitation on the stick-slip vibration characteristics of a drill string. [PDF]

Sci Rep
Hongshan Z, Wenchang W, Kaixian A.
europepmc   +1 more source

Vibration Transmission Characteristics of a Quasi-zero Stiffness Torsional Isolator

Journal of Mechanical Engineering, 2018
openaire   +1 more source