Results 81 to 90 of about 1,588 (287)

Self-Propelled Multi Tiller for Green Farming

International Journal of Scientific Research in Engineering and Management
Here, the design and performance analysis of a self-driven multi-tiller for small-scale and eco-friendly agriculture is described. The proposed system is designed to run on an electric power source with a voltage of 12V, utilizing multiple DC motors for both propulsion and tilling action.
Prof. Athith D, Prashanth B, T M Srikanth, Gautham M, Madhusudhan K S   +4 more
openaire   +1 more source

Decoupling Photochemical and Photothermal Effects Using Molecular Motors Enables Fast, Intelligent, and Life‐Like Motions in Soft Materials

Advanced Materials, EarlyView.
A light‐responsive liquid crystal (LC) polymer network integrating molecular rotary motors and photothermal converters enables the decoupling of photochemical and photothermal effects. Selective wavelength activation allows orthogonal control over persistent shape encoding and fast reversible motion, enabling programmable soft robots capable of complex
Guiying Long, Jinyu Sheng, Alexander Ryabchun, Ben L. Feringa   +3 more
wiley   +1 more source

Development of Green Bipropellant Thrusters and Engines Using 98% Hydrogen Peroxide as Oxidizer

Aerospace
The need for non-toxic chemical propulsion systems is growing stronger in today’s space sector. One of the possible solutions for next-generation bipropellant systems is using hydrogen peroxide as the oxidizer.
Adam Okninski, Pawel Surmacz, Kamil Sobczak, Wojciech Florczuk, Dawid Cieslinski, Aleksander Gorgeri, Bartosz Bartkowiak, Dominik Kublik, Michal Ranachowski, Zbigniew Gut, Adrian Parzybut, Anna Kasztankiewicz, Jacek Mazurek, Ferran Valencia Bel, Armin Herbertz, Kate Underhill, Dirk Schneider, Andreas Flock   +17 more
doaj   +1 more source

Decoupling Activation and Preservation: Architectural Design Principles of Organic Frameworks for Selective Photocatalytic Methane Oxidation

Advanced Materials, EarlyView.
Selective methane (CH4) photooxidation emerges from architectural decoupling of activation and preservation. Programmable organic semiconductor frameworks spatially organize oxidative flux and intermediate residence, separating reaction zones from product domains to synchronize activation strength with stabilization and establish a selective oxidation ...
Minxian Zhang, Jie He, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Photoactive Tweezers

Advanced Materials, EarlyView.
A photoactive tweezers system based on photoactive colloids is developed and systematically investigated in this study. Through experimental and theoretical methods, we demonstrate that the photoredox reaction catalyzed by a dye‐sensitized TiO2 particle generates a strong positive phototaxis, enabling self‐entrapment in the beam center.
Jingyuan Chen, Qingxin Guo, Shiwei Zhang, Donghao Cui, Changjin Wu, Pei Xu, Wei Wang, Kai Lou, Binglin Zeng, Jinyao Tang   +9 more
wiley   +1 more source

Bioinspired Adaptive Surfaces for Intelligent Liquid Manipulation: Progressing From Passive and Active to Hybrid Strategies

Advanced Materials, EarlyView.
This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao, Yiyuan Zhang, Liqiu Wang, Alan C. H. Tsang   +3 more
wiley   +1 more source

“Green propellants” as a hydrazine substitute: experimental investigations of ethane/ethene-nitrous oxide mixtures and validation of detailed reaction mechanism [PDF]

, 2021
Corina Janzer, Sandra Richter, Clemens Naumann, Torsten Methling   +3 more
openalex   +1 more source

Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications

Advanced Materials, EarlyView.
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko, Chiamaka Akah, Ravinder Dahiya   +2 more
wiley   +1 more source

Stabilizer selection and formulation strategies for enhanced stability of single base nitrocellulose propellants: A review

Energetic Materials Frontiers
Stabilizers play a crucial role in preventing undesirable decomposition and degradation reactions of propellants, thus ensuring their long-term performance and safe storage.
Siti Nor Ain Rusly, Siti Hasnawati Jamal, Alinda Samsuri, Siti Aminah Mohd Noor, Khoirul Solehah Abdul Rahim   +4 more
doaj   +1 more source

TESCLA: A Fully Soft Electromagnetic Linear Actuator With Continuous Bending Enabled by Liquid‐Metal Solenoids

Advanced Materials, EarlyView.
TESCLA (tubular electromagnetic soft conformal linear actuator) combines liquid‐metal solenoids and compliant magnetic composites to achieve large‐stroke bidirectional actuation with continuous bending. Integrated inductance‐based self‐sensing enables proprioceptive position estimation without external sensors, providing a versatile platform for soft ...
Yeongjin Choi, Jeongnam Kim, Seongjun Koh, Yong‐Lae Park   +3 more
wiley   +1 more source