Results 81 to 90 of about 380,610 (335)

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

Advanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim, Soohyun Ji, Donghyun Choi, Jwa‐Min Nam   +3 more
wiley   +1 more source

Assessment on drag force distribution of a semi-submersible truss fish cage in currents

Frontiers in Marine Science
Assessing the current forces exerted on a semi-submersible truss fish cage is crucial for understanding drag force distribution and ensuring the structural safety.
Hang-Fei Liu, Xiaohua Huang, Guoliang Pang, Gen Li, Taiping Yuan, Yu Hu, Qiyou Tao, Qiyou Tao   +7 more
doaj   +1 more source

CFD-DEM Evaluation of the Clustering Behavior in a Riser-the Effect of the Drag Force Model. [PDF]

Ind Eng Chem Res, 2023
Ramírez J, de Munck M, Liu Z, Rieder DR, Baltussen M, Buist K, Kuipers JAMH.   +6 more
europepmc   +1 more source

A Periodically Rotating Distributed Forcing of Flow over a Sphere for Drag Reduction [PDF]

, 2023
Donggun Son, Jungil Lee
openalex   +1 more source

Magnetically Actuated Drops‐on‐Stilts Microrobots for Transport and Delivery of Hydrophobic Cargo

Advanced Materials Interfaces, EarlyView.
Iron oxide nanoparticles and oil droplets in external magnetic fields form “drops‐on‐stilts” microrobots that transport hydrophobic cargo. Tunable nanoparticle–droplet interactions generate stilt‐like structures. Field rotation enables walking, obstacle navigation, and collective motion.
Oluwafemi Ligan, Hrishabh Singh, Sahil Kulkarni, Hong Huy Tran, James M. Kikkawa, Daeyeon Lee, Ravi Radhakrishnan, Edward Steager, Hyun Koo, Kathleen Stebe   +9 more
wiley   +1 more source

Quantitative Analysis of Drag Force for Task-Specific Micromachine at Low Reynolds Numbers. [PDF]

Micromachines (Basel), 2022
Wang Q, Wang Z.
europepmc   +1 more source

Frictional drag between non-equilibrium charged gases

, 2000
The frictional drag force between separated but coupled two-dimensional electron gases of different temperatures is studied using the non-equilibrium Green function method based on the separation of center-of-mass and relative dynamics of electrons.
A.G. Rojo, A.P. Jauho, B. Dong, B. Tanatar, B. Tanatar, B. Tanatar, B.Y.K. Hu, C. Jörger, C. Zhang, G. D. Mahan, H. Noh, H. Noh, H.C. Tso, H.C. Tso, H.C. Tso, H.C. Tso, H.C. Tso, H.L. Cui, I. C. da Cunha Lima, I. Koponen, I.C. da Cunha Lima, I.V. Gornyi, J. Szymański, K. Flensberg, K. Flensberg, K. Flensberg, K. Güven, L. Zheng, L. Zheng, L. Świerkowski, M.B. Pogrebinskii, M.C. Bonsager, M.W. Wu, N.P.R. Hill, P.J. Price, P.M. Solomon, S.M. Badalyan, T.J. Gramila, T.J. Gramila, U. Sivan, X. F. Wang, X.F. Wang, X.L. Lei, X.L. Lei   +43 more
core   +1 more source

Topological Point Defects in SmC* Liquid Crystals Under Mechanical Disturbance

Advanced Materials Interfaces, EarlyView.
Tangetial air jet shear inducess island formation and nucleates topological point defects in uniform SmC films. Island bounded by edge dislocation loops shrink and transform into isolated point defects under continued shear. Mechanical perturbatio provides a controllable route for defect engineering in smectric liquid crystal thin films.
Gunganist Kongklad, Vandana Molahalli, Apichart Pattanaporkratana, Nattaporn Chattham   +3 more
wiley   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source

Numerical analysis of flow interference on flat-plate-modeled aerodynamic brakes for high-speed railways

Nihon Kikai Gakkai ronbunshu
An aerodynamic brake is a device that is aimed for increasing air drag to obtain brake force by expanding plates. As proposed by Takami (2013), multiple plates are distributed on the train roof. In this arrangement, many devices are installed in the wake
Kohei KAWAI, Keiichi KITAMURA
doaj   +1 more source