Results 1 to 10 of about 173,343,641 (293)

Twist degree of freedom activated by pressure-driven interlayer engineering in spiral WS2 [PDF]

Nature Communications
Precise twist-angle control in van der Waals (vdW) moiré superlattices enables twistronic tuning of interfacial responses and emergent quantum states, but it remains unclear how atomic registry in three-dimensional stacks is linked to interlayer coupling
Penghong Ci, Muhua Sun, Yabin Chen, Yoonsoo Rho, Yuzhou Zhao, Kaiyao Xin, Zifeng Mai, Shanyu Liang, Zhongjie Wang, Jiangbin Wu, Hao Hong, Zhongming Wei, Costas P. Grigoropoulos, Yue-Yang Liu, Ping-Heng Tan, Junqiao Wu   +15 more
doaj   +2 more sources

Wing twist angle predictions using finite element model unit load cases

Results in Engineering, 2023
To develop a wing twist angle predictive model, fiber Bragg gratings were installed on a wing and were simulated with rod elements in the wing's finite element model.
T. Klotz, Y. Thabet, D. Walch
doaj   +3 more sources

Small Horizontal Wind Turbine Design and Aerodynamic Analysis Using Q-Blade Software

مجلة بغداد للعلوم, 2023
Wind energy is one of the most common and natural resources that play a huge role in energy sector, and due to the increasing demand to improve the efficiency of wind turbines and the development of the energy field, improvements have been made to ...
Othman K. Zidane, Yaseen H. Mahmood
doaj   +1 more source

In-situ twistable bilayer graphene

Scientific Reports, 2022
The electrical and optical properties of twisted bilayer graphene (tBLG) depend sensitively on the twist angle. To study the angle dependent properties of the tBLG, currently it is required fabrication of a large number of samples with systematically ...
Cheng Hu, Tongyao Wu, Xinyue Huang, Yulong Dong, Jiajun Chen, Zhichun Zhang, Bosai Lyu, Saiqun Ma, Kenji Watanabe, Takashi Taniguchi, Guibai Xie, Xiaojun Li, Qi Liang, Zhiwen Shi   +13 more
doaj   +1 more source

Relationship between Swimming Velocity and Trunk Twist Motion in Short-Distance Crawl Swimming

Biomechanics, 2023
This study aimed to estimate the trunk twist angle from the shoulder and hip rotation angles in short-distance crawl swimming and to elucidate the twist motion of the relationship between the trunk and the rotation angular velocity in response to changes
Hiroki Hyodo, Daiki Koga, Yasuo Sengoku, Tadashi Wada   +3 more
doaj   +1 more source

Aerodynamic/Aeroacoustic Numerical Simulation and Manufaturing of a Sample Morphing Wing in Twisted Mode [PDF]

فناوری در مهندسی هوافضا, 2023
Inspiring from bird’s wings and flights has long been a fascinating subject. In recent years, due to advent of materials and implementation of bird’s flights, use of morphing wings have created considerable changes in scientific issues related to air ...
Reza Harbi Monfared, Mohammad Taeibi Rahni, Masoud Zareh   +2 more
doaj   +1 more source

Measuring local moiré lattice heterogeneity of twisted bilayer graphene

Physical Review Research, 2021
We introduce a new method to continuously map inhomogeneities of a moiré lattice and apply it to large-area topographic images we measure on open-device twisted bilayer graphene (TBG).
Tjerk Benschop, Tobias A. de Jong, Petr Stepanov, Xiaobo Lu, Vincent Stalman, Sense Jan van der Molen, Dmitri K. Efetov, Milan P. Allan   +7 more
doaj   +1 more source

Computational Fluid Dynamics Studies on a Centrifugal Compressor Stage with Twisted Vanes of a Low Solidity Diffuser [PDF]

Journal of Applied Fluid Mechanics
This study examines the effect of a twisted diffuser vane on the performance of a centrifugal compressor stage. A computational analysis was conducted to assess how the setting and twist angles influence the compressor’s performance and diffuser static ...
P. Venkateswara Rao, V. R. Govindaraju, K. Venkateswarlu, M. Bhanu Kumari   +3 more
doaj   +1 more source

Optimization of a Nature-Inspired Shape for a Vertical Axis Wind Turbine through a Numerical Model and an Artificial Neural Network

Applied Sciences, 2022
The present work proposes an artificial neural network (ANN) to analyze vertical axis wind turbines of the Savonius type. These turbines are appropriate for low wind velocities due to their low starting torque.
Javier Blanco Damota, Juan de Dios Rodríguez García, Antonio Couce Casanova, Javier Telmo Miranda, Claudio Giovanni Caccia, María Isabel Lamas Galdo   +5 more
doaj   +1 more source

Tunable electronic structure in twisted WTe2/WSe2 heterojunction bilayer

AIP Advances, 2022
Electronic structures of non-twisted and twisted WTe2/WSe2 heterojunction bilayers were investigated using first-principles calculations. Our results show that, for the twisted WTe2/WSe2 heterojunction bilayer, the bandgaps are all direct bandgaps, and ...
Zi-Si Chen, Wen-Ti Guo, Jiefeng Ye, Kehua Zhong, Jian-Min Zhang, Zhigao Huang   +5 more
doaj   +1 more source