Results 91 to 100 of about 23,503,020 (327)

Recent Advances in Collective Behaviors of Micro/Nanomotor Swarms

open access: yesAdvanced Materials, EarlyView.
This review describes the driving forces behind collective motion, explores the self‐organization of micro/nano swarms across zero‐dimensional (0D), one‐dimensional (1D), two‐dimensional (2D), and three‐dimensional (3D) spaces, and highlights their potential in drug delivery, environmental monitoring, and smart devices.
Siwen Sun   +4 more
wiley   +1 more source

Color-Kinematics Duality in Multi-Regge Kinematics and Dimensional Reduction

open access: yes, 2013
In this note we study the applicability of the color-kinematics duality to the scattering of two distinguishable scalar matter particles with gluon emission in QCD, or graviton emission in Einstein gravity.
Campillo, Eduardo Serna   +3 more
core   +1 more source

A linear systems analysis of the yaw dynamics of a dynamically scaled insect model [PDF]

open access: yes, 2010
Recent studies suggest that fruit flies use subtle changes to their wing motion to actively generate forces during aerial maneuvers. In addition, it has been estimated that the passive rotational damping caused by the flapping wings of an insect is ...
Dickinson, Michael H.   +3 more
core   +1 more source

Kinematics Analysis of Ankle Inversion Ligamentous Sprain Injuries in Sports

open access: yesAmerican Journal of Sports Medicine, 2012
Background: Ankle ligamentous sprain is common in sports. The most direct way to study the mechanism quantitatively is to study real injury cases; however, it is unethical and impractical to produce an injury in the laboratory.
D. Fong   +4 more
semanticscholar   +1 more source

Materials and System Design for Self‐Decision Bioelectronic Systems

open access: yesAdvanced Materials, EarlyView.
This review highlights how self‐decision bioelectronic systems integrate sensing, computation, and therapy into autonomous, closed‐loop platforms that continuously monitor and treat diseases, marking a major step toward intelligent, self‐regulating healthcare technologies.
Qiankun Zeng   +9 more
wiley   +1 more source

Serotonergic System‐Targeted Nucleic Acid Hydrogel Coordinates Excitability Restoration and Circuit Reconstruction for Spinal Cord Injury Therapy

open access: yesAdvanced Materials, EarlyView.
The study reports a DNA/RNA heteroduplex hydrogel (SeroPTEN‐CG) that undergoes DNase‐mediated hydrogel‐to‐nanogel transition for spinal cord injury therapy by targeting the serotonergic system, combining 5‐hydroxytryptamine (5‐HT)‐mediated excitability restoration to reactivate dormant interneurons with phosphatase and tensin homolog (PTEN)‐targeted ...
Chunlin Li   +19 more
wiley   +1 more source

Research on dynamics of helicopter leg landing gear mechanism

open access: yesHangkong gongcheng jinzhan
Multipurpose,intelligent,and strong terrain adaptability are important trends in the development of helicopters in the future. The landing gear is a key component to ensure the safety of helicopter takeoff and landing.
LIU Xiaochuan
doaj   +1 more source

Analysis of Kinematics and Dynamics for a Novel Hybrid Kinematics Machine

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
In this paper a novel 4 Degree-of-Freedom (DOF) parallel mechanism with the configuration of 4PUS-1RPU is first proposed, the mechanism is composed of four symmetrical driving chains and one central passive subchain.
Ying HU   +4 more
doaj   +1 more source

Analysis of the joint kinematics of the 5 iron golf swing [PDF]

open access: yes, 2009
The purpose of this study was to identify the performance determining factors of the 5-iron golf swing. Joint kinematics were obtained from thirty male golfers using a twelve camera motion analysis system. Participants were divided into two groups, based
Dickson, Jane   +5 more
core   +1 more source

Simulations of extensional flow in microrheometric devices [PDF]

open access: yes, 2008
We present a detailed numerical study of the flow of a Newtonian fluid through microrheometric devices featuring a sudden contraction–expansion. This flow configuration is typically used to generate extensional deformations and high strain rates.
A Revuelta   +61 more
core   +1 more source

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