Results 81 to 90 of about 10,532,032 (323)

Experimental study on effects of nozzles and combustors on the rotating detonation rocket engine in pulse operation

Results in Engineering
The rotating detonation engine (RDE) is an innovative pressure-gain combustion device that harnesses detonation waves for efficient fuel combustion.
Guining Liu, Zixuan Wang, Yingying Ruan, Zewen Zhong, Rui Wang, Shengbing Zhou, Ning Hu   +6 more
doaj   +1 more source

Intrabandgap States Engineering in Functionalized Nanodiamond to Generate Solvated Electrons for Photocatalysis Under Solar Illumination

Advanced Functional Materials, EarlyView.
The negative electron affinity of diamond allows to emit highly reductive electrons. By introducing intra‐bandgap states and an optimized electron transfer mechanism by surface functionalization with Ru(bpy)3, the formation of solvated electrons is achieved upon solar irradiation.
Benjamin Kiendl, Arsène Chemin, Adam H. Day, Rocio B. Rodriguez, Sneha Choudhury, Franziska Buchner, Kaan Atak, Christoph Merschjann, Emina Hadzifejzovic, Tim D. W. Claridge, Karin Larsson, Amélie Venerosy, Mailis M. Lounasvuori, Natalia Zabarska, Boyan Iliev, Thomas J. S. Schubert, Hugues A. Girard, Jean‐Charles Arnault, John S. Foord, Tristan Petit, Anke Krueger   +20 more
wiley   +1 more source

Detonation propagation along percolating cluster in composite explosives

MATEC Web of Conferences, 2018
The detonation performance of melt-cast plastic-bonded explosives (PBXs) based on high melting explosive octogen (HMX) was studied in the paper. It has been found that the detonation velocity strongly depends from the dispersion distribution of HMX ...
Komarov Vitaly, Sakovich Gennady, Popok Nikolai, Kazutin Maxim, Kozyrev Nikolai   +4 more
doaj   +1 more source

GPS based vehicle tracking system [PDF]

, 2021
The research is about creating a system for tracking vehicle. Objective of the research is to design and develop a GPS based Vehicle Tracking System in order to display location of vehicle on Google Maps.
Mohd Nazri, Mohd Fiqri, Zohari, Mohd Hakimi   +1 more
core  

Heteroatom‐Engineering Promoted Co9S8 Bi‐functional Electrocatalyst for Hydrazine‐Assisted Hydrogen Production at Industrial Current Density

Advanced Functional Materials, EarlyView.
Fe and P co‐doped Co9S8 nanocorals (Fe, P‐Co9S8) are successfully synthesized by a heteroatom engineering strategy, which exhibit outstanding bifunctional electrocatalytic performance for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR).
Yuying Meng, Chunyan Xiang, Wenbiao Zhang, Dahai Zeng, Bing Du, Bao Zhong, Yue Jiang, Damien Voiry, Qingsheng Gao   +8 more
wiley   +1 more source

Three‐Dimensional Hierarchical Nanowire‐Networks with Deep‐Focus Tolerance and Adhesion Robustness for Harsh‐Environment SERS Sensing

Advanced Functional Materials, EarlyView.
A 3D nanowire‐network SERS substrate with robust adhesion is developed, featuring pronounced z‐direction optical activity, ultralow detection limit (1.5 × 10−13 M), and excellent signal uniformity (RSD < 10%). Enabled by enhanced light scattering, increased optical density of states, and structural reinforcement, the substrate demonstrates stable, high‐
Jinglai Duan, Wentao Wang, Xiu Liang, Yongliang Zhang, Jie Liu, Yu Bai, Dangyuan Lei   +6 more
wiley   +1 more source

Some nitrogen-rich heterocycles derivatives as potential explosives and propellants: A theoretical study [PDF]

Journal of the Serbian Chemical Society, 2016
Four types of nitrogen-rich heterocycles substituted with -NO2, -NHNO2 and -C(NO2)3 explosophoric groups were explored as potential explosives and propellants materials.
Frem Dany
doaj   +1 more source

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

Advanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler, Jean‐Paul P.M. de Vries, Sarthak Misra, Venkatasubramanian Kalpathy Venkiteswaran   +3 more
wiley   +1 more source

Nanolayer‐Encapsulated Stretchable Liquid‐Metal Sheets for Thermal Management

Advanced Functional Materials, EarlyView.
A stretchable liquid metal sheet with both high thermal conductivity and mechanical flexibility is developed. Its trilayer structure, comprising copper‐particle‐dispersed gallium liquid metal encapsulated by styrene‐butadiene‐styrene nanosheets, shows 40.4 W m−1 K−1 conductivity, elongation exceeding 200%, and retention of 96% of its initial ...
Daisuke Kuse, Yudai Kaneko, Ryohei Fujita, Tatsuhiro Horii, Daishi Shiojiri, Yuta Ozawa, Kyohei Nagatake, Tamami Takano, Yutaka Isoda, Aoi Koishikawa, Takashi Goto, Ai Ueno, Shoji Maruo, Kazuhide Ueno, Toshinori Fujie, Hosei Nagano, Hiroki Ota   +16 more
wiley   +1 more source

Synthesis and Characteristics of 1,2,4,5-Tetrazines for Using as High Energy Density Materials (HEDMs)

Applied Sciences
Nitrogen-rich heterocycles constitute a family of high energy density materials (HEDMs) that have been developing intensively in recent years. A representative of this class is 1,2,4,5-tetrazine, a six-membered aromatic compound containing four nitrogen ...
Sebastian Górecki, Agnieszka Kudelko
doaj   +1 more source