Results 131 to 140 of about 12,339 (306)

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Degradable Magnetic Composites from Recycled NdFeB Magnets for Soft Actuation and Sensing

Advanced Robotics Research, EarlyView.
This work presents a degradable soft magnetic composite made from recycled NdFeB particles embedded in a gelatin‐based organogel. The material is processed into magnetic sensors and soft robotic components, which can later be dissolved in a green solvent to recover NdFeB magnetic particles.
Muhammad Bilal Khan, Lin Guo, Kilian Schäfer, Eduardo Sergio Oliveros‐Mata, Xiaotao Wang, Florian Hofmann, Matthias Lutzi, Mark Suppelt, Proloy Taran Das, Jan Schmidtpeter, Imants Dirba, Stephan Rinderknecht, Mario Kupnik, Denys Makarov, Oliver Gutfleisch   +14 more
wiley   +1 more source

Low-Cost and Green Solid Propellants for Space Propulsion

, 2004
Ammonium Nitrate (AN), an inorganic solid oxidizer used in rocket propulsion decades ago, produces environmentally friendly combustion products and it is a very cheap energetic material. The main objective of this work is to propose AN-based formulations
GALFETTI, LUCIANO, B. Kondrikov, DE LUCA, LUIGI, A. Vorozhtsov, F. Severini, M. Galeotta, R. De Amicis, V. Babuk   +7 more
core  

Echinoderm‐Inspired Autonomy for Soft‐Legged Robots

Advanced Robotics Research, EarlyView.
Inspired by echinoderms, a modular soft robot achieves autonomous phototaxis without a central controller or explicit communication. Each limb independently adapts its actuation timing through local sensing and short‐term memory. Coordination emerges purely from physical interactions, demonstrating resilience to changes in morphology, environment, and ...
Harmannus A. H. Schomaker, Jelle de Vries, Johannes T. B. overvelde   +2 more
wiley   +1 more source

Damage analysis of solid propellants with default defects based on macro-microscopic approach

Materials & Design
Solid Rocket Motors (SRMs) rely on solid propellants, directly impacting the energy capacity of launch vehicles. High energy density material (HEDM) propellant exhibits superior energy density owing to the incorporation of a substantial quantity of ...
Kaining Zhang, Zhelin Dong, Chongpu Zhai, Chunguang Wang, Qun Li, Xiaoying Wang   +5 more
doaj   +1 more source

Autonomous Locomotion of Tensegrity Structure on Low‐Temperature Surfaces

Advanced Robotics Research, EarlyView.
A low‐temperature responsive tensegrity structure (LRTS) is constructed by integrating low‐responsive temperature liquid crystal elastomer (LCE) cables, nonresponsive cables, and stiff rods. The low phase transition temperature of LCE is achieved by introducing a new liquid crystal mesogen.
Changyue Liu, Kai Li, Tianyu Li, Zixuan Wang, Jiping Yang, Zhijian Wang   +5 more
wiley   +1 more source

Effects of NO in oxidant and initial temperature on working characteristics of MON-X/MMH liquid space thruster

Science Progress
With the progress of deep space exploration activities, low freezing point propellants are required to ensure the normal operation of aerospace engines in deep space environments.
Yu-Hao Zhou, Rong-Pei Jiang, Guo-Xiu Li, Hong-Meng Li, Tao Fang, Kun Tong   +5 more
doaj   +1 more source

A green stabilizer for Nitrate ester-based propellants: An overview

Heliyon
The field of propellants has recently witnessed dynamic shift, including advancements in propulsion technology and a growing emphasis on the development of environmentally friendly propellants. Nitrate ester (NE) are extensively used in solid propellants,
Siti Nor Ain Rusly, Siti Hasnawati Jamal, Alinda Samsuri, Siti Aminah Mohd Noor, Khoirul Solehah Abdul Rahim   +4 more
doaj   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Constitutive Model Based on Stress Relaxation for Composite Modified Double-Base Propellants and Master Curve of Relaxation Modulus

Aerospace
This study investigates the constitutive model and relaxation modulus master curve of composite modified double-base (CMDB) propellants through uniaxial constant-rate tensile tests and stress relaxation tests.
Yao Li, Jinsheng Xu, Changsheng Zhou, Xiong Chen, Xiumin Yang   +4 more
doaj   +1 more source