Results 111 to 120 of about 8,361,162 (295)

Countermovement jump performance in Malaysian young wushu athletes: normative values and sex-based differences

open access: yesRevista de Artes Marciales Asiáticas
Wushu, commonly known as kung-fu, is a demanding sport requiring rapid force application to achieve significant vertical jump heights. These jumps are integral for executing complex aerial tasks and obtaining higher performance scores.
Erik C.H. Tan   +4 more
doaj   +1 more source

Programmable Pneumatic Actuator System for a Bioinspired Artificial Colon

open access: yesAdvanced Materials Technologies, EarlyView.
A modular soft robotic colon simulator driven by programmable pneumatic actuation is developed to mimic physiological and pathological‐like motility patterns of the large intestine. Finite element–guided design and distributed control enable anatomically realistic deformation for peristalsis, segmentation, and mass movements, supporting capsule ...
Andrew Bickerdike   +6 more
wiley   +1 more source

Arm Propulsion in Front Crawl Stroke

open access: yesSports
Objectives: This study aims to determine the propulsive force and effective arm area contributed by the propulsion through the dynamic balance (power balance) between drag and propulsive power in swimming crawl performance.
Cristian Romagnoli   +2 more
doaj   +1 more source

“On Scale Effect of Self-Propulsive Performance”

open access: yesJournal of the Society of Naval Architects of Japan, 1969
In this paper the author treats the problem on scale effect of self-propulsive performance of a ship by theoretical calculation. The self-propulsion tests adapted are the model self-propulsion point test and the conventional self-propulsion test and the Schoenherr's new self-propulsion test. In spite of many approximate treatments in the calculation he
openaire   +2 more sources

Microfabrication of Soft Millirobots Propelled by Low Voltage Electrohydraulic Actuators

open access: yesAdvanced Materials Technologies, EarlyView.
Manual layer‐by‐layer assembly is replaced by wafer‐level MEMS batch fabrication for compliant polymer‐based electrohydraulic actuators. The microfabricated devices integrate sacrificially defined microcavities, Parylene‐C‐sealed inlets, and multilayer polymer–metal films.
Shai Shmulevich   +2 more
wiley   +1 more source

Information Transmission Strategies for Self‐Organized Robotic Aggregation

open access: yesAdvanced Robotics Research, EarlyView.
In this review, we discuss how information transmission influences the neighbor‐based self‐organized aggregation of swarm robots. We focus specifically on local interactions regarding information transfer and categorize previous studies based on the functions of the information exchanged.
Shu Leng   +5 more
wiley   +1 more source

Research on the Influence of Hydrofoil Propulsive Parameters on Propulsion Efficiency

open access: yesJournal of Marine Science and Engineering
Oscillating hydrofoils can be used to simplify the study of the swinging caudal fin propulsive mode of fish, where the motion parameters have a direct impact on the hydrodynamic performance and propulsive efficiency. In this study, numerical calculations
Meng Cui   +4 more
doaj   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

open access: yesAdvanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui   +5 more
wiley   +1 more source

Performance

open access: yes
Representing the output of the research project "Performance: Conservation, Materiality, Knowledge," this volume brings together diverse voices, methods, and formats in the discussion and practice of performance conservation.

core   +1 more source

Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots

open access: yesAdvanced Robotics Research, EarlyView.
This perspective provides an overview of the performance mechanisms, preparation methods, and applications of strong magnetic flexible composite materials in soft actuators (such as gripping, movement, and sensing), and further explores current opportunities and challenges.
Wenwen Li   +4 more
wiley   +1 more source

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