Results 231 to 240 of about 380,610 (335)

Validity and Reliability of an On-Bike Sensor System for the Determination of Aerodynamic Drag in Cycling. [PDF]

Eur J Sport Sci
Hopker JG, Barnes C, Fennell CRJ, Gibson S.   +3 more
europepmc   +1 more source

Electrohydrodynamic Fiber Pump With Dual‐Flow Channels

Advanced Intelligent Systems, EarlyView.
A dual‐channel electrohydrodynamic (EHD) fiber pump is introduced, which enables fluid flow inside and outside fully exposed helical electrodes. The dual‐channel design significantly enhances flow rate, pressure, and efficiency compared with the conventional design.
Yuya Shibahara, Rudrajyoti Das, Naoki Ogawa, Hideko Akai, Jun Shintake   +4 more
wiley   +1 more source

A Survey of Current Operations-Ready Thermospheric Density Models for Drag Modeling in LEO Operations. [PDF]

J Astronaut Sci
Mutschler S, Pilinski M, Bruinsma S, Sutton E, Tobiska WK, Knipp D, Fang TW, Casali S, Mallik V, DiLorenzo B, Siemes C.   +10 more
europepmc   +1 more source

Frame-Dragging Force, Gravitospinism, and Spinity Wave Equation

Wan‐Chung Hu
openalex   +2 more sources

Liquid Jetting‐Based Miniature Robotic Navigation in Confined Fluidic Spaces

Advanced Intelligent Systems, EarlyView.
We introduce a new class of liquid‐jetting‐based miniature robots (JetBots) ranging in size from mm‐to‐cm, featuring a unified approach in design, fabrication, and actuation. They demonstrate fast locomotion (30.3 cm/s), rapid steering (648.8°/s), and diverse functions, such as puncturing soft materials and unlimited cargo sampling and delivery, paving
Debasish Roy, Tianlu Wang
wiley   +1 more source

Low-Load endoluminal navigation with a magnetically actuated medical soft microrobot. [PDF]

Front Med Technol
Guerra J, Malchikov A, Jatsun S, Ryapolov P, Martinez-Leon AS.   +4 more
europepmc   +1 more source

Causal Momentum Transfer and Drag Reduction in Aerodynamic Systems A Causal Lorentzian Framework for Heat–Force Coupling in Engineerin

Azzam Almosallami
openalex   +1 more source

EXPERIMENTAL STUDY ON THE WIND FORCE COEFFICIENT ON STEEL-PIPE-TOWER : Part 1 Drag-coefficient on Tower of Quadrange Section

, 1981
HIDEO UZUKI, Isamu Kamei
openalex   +2 more sources

A Soft Robotic Jellyfish with Decoupled Actuators for Agile 3D Locomotion

Advanced Intelligent Systems, EarlyView.
This study presents a soft robotic jellyfish featuring a functionally decoupled actuation architecture. By separating propulsion, steering, and vertical regulation into independent modules, the robot overcomes conventional coupled‐motion limitations. Utilizing a passive‐valve‐based differential drag strategy and lateral water jets, it achieves agile 3D
Zhuoheng Li, Ze Huang, Salvador Pané, Josep Puigmartí‐Luis, Jiwan Kim, Ji‐Hun Bae, Bumjin Jang   +6 more
wiley   +1 more source

Feather aerodynamics suggest importance of lift and flow predictability over drag minimization. [PDF]

Sci Rep
Alenius F, Revstedt J, Johansson LC.
europepmc   +1 more source