Results 71 to 80 of about 4,526 (269)

Plant Robotics for Sustainable and Environmentally Friendly Robots: Insights from Actuation Characteristics

Advanced Science, EarlyView.
Plants are promising materials for building sustainable and eco‐friendly robots due to their inherent multifunctionality, with actuation playing a crucial role. This article focuses on the physical movements of plants and, from the perspective of actuation characteristics, explores representative plant species and their behaviors, the current state of ...
Kazuya Murakami, Misao Sato, Yu Ikeda, Tatsuhiro Horii, Yukari Nagatoshi, Miki Fujita, Toshinori Fujie, Yasunari Fujita, Jun Shintake   +8 more
wiley   +1 more source

Pulse detonation assembly and hybrid engine [PDF]

, 2010
A pulse detonation (PD) assembly includes a number of PD chambers adapted to expel respective detonation product streams and a number of barriers disposed between respective pairs of PD chambers. The barriers define, at least in part, a number of sectors
Dean, Anthony John, Rasheed, Adam, Vandervort, Christian Lee   +2 more
core   +1 more source

An Advanced High‐Performance Ultrafast Ammonium‐Ion Aqueous Battery Based on Dual‐Metal Redox Open Framework Molecular Magnet

Advanced Science, EarlyView.
The Prussian Blue Analogue molecular magnet KMnFeHCF is demonstrated as a high‐performance cathode for ultra‐fast aqueous ammonium‐ion batteries. A full cell using KMnFeHCF and graphite delivers ~71 mAh g−1 at 1.25 A g−1 and ~51 mAh g−1 at 2.2 A g−1, retaining 50% capacity after 1850 cycles. Its scalability, cycling stability, and low cost offer strong
Nilasha Maiti, Pramod Bhatt, Manoj K Sharma, Sher Singh Meena, Mayuresh D Mukadam, Soumen Samanta   +5 more
wiley   +1 more source

Numerical Investigation of the Effect of Equivalent Ratio on Detonation Characteristics and Performance of CH₄/O₂ Rotating Detonation Rocket Engine

Aerospace
Equivalent ratio (ER) is an important factor affecting detonation characteristics and propulsion performance of rotating detonation rocket engine (RDRE).
Xiao Xu, Qixiang Han, Yining Zhang
doaj   +1 more source

A Review of Wave Rotor Technology and Its Applications [PDF]

, 2006
The objective of this paper is to provide a succinct review of past and current research in developing wave rotor technology. This technology has shown unique capabilities to enhance the performance and operating characteristics of a variety of engines ...
Akbari, Pezhman, Mueller, Norbert, Nalim, M. Razi   +2 more
core   +1 more source

Stretchable Curvature Sensors for Motion Capture with Bending‐Stretching Coupling Deformation

Advanced Science, EarlyView.
Stretchable curvature sensors based on a wavy symmetric stacked‐layer structure (WSSLS) enable decoupled bending‐stretching detection with high linearity, repeatability, and durability. Integrated into smart gloves, the sensors achieved precise motion capture and human‐robot interaction, with slip‐simulation tests demonstrating a remarkable 93.6 ...
Tairan Wang, Xinkai Xu, Shuang Li, Yuqun Lan, Kai Chen, Wei Li, Guangyuan Wang, Kuai Yu, Lijuan Sun, Yewang Su   +9 more
wiley   +1 more source

Compressible flow structures interaction with a two-dimensional ejector: a cold-flow study [PDF]

, 2009
An experimental study has been conducted to examine the interaction of compressible flow structures such as shocks and vortices with a two-dimensional ejector geometry using a shock-tube facility. Three diaphragm pressure ratios ofP4 =P1 = 4, 8, and 12
Ben-Dor G., Bynum D. S., Glaser A. J., Glaser A. J., Glaser A. J., H. Zare-Behtash, K. Kontis, Kline S. J., Korobeinikov V. P., Minota T., Shepherd J. E., von-Neumann J., Yungster S., Zare-Behtash H., Zare-Behtash H.   +14 more
core   +1 more source

Reaction Mechanism, Challenges, and Strategies of High‐Energy‐Density Sodium‐Ion Batteries

Advanced Science, EarlyView.
Focusing on high‐energy‐density sodium‐ion batteries, this review highlights the advantages offered by conversion‐type cathode materials. The currently studied cathode materials are systematically introduced. By analyzing sulfur, oxygen, and transition metal halides and other conversion‐type cathodes, the key challenges associated with these cathodes ...
Dan Yu, Yuxin Cui, Qinghao Chen, Lu Gao, Xia Liu, Tianci Li, Wenju Zhu, Quanxiang Li, Weimin Kang   +8 more
wiley   +1 more source

High-resolution numerical simulation of rotating detonation waves with parallel adaptive mesh refinement

Applications in Energy and Combustion Science
Simulations of rotating detonation engines are still dominated by solvers on uniform or statically refined meshes. Here, simulations of premixed rotating detonation waves are conducted using the block-structured adaptive mesh refinement (SAMR) technique.
Han Peng, Ralf Deiterding
doaj   +1 more source

FBOTs and AT2018cow following electron-capture collapse of merged white dwarfs [PDF]

, 2019
We suggest that fast-rising blue optical transients (FBOTs) and the brightest event of the class AT2018cow result from an electron-capture collapse to a \NS\ following a merger of a massive ONeMg white dwarf (WD) with another WD.
Lyutikov, Maxim, Toonen, Silvia
core   +2 more sources