Results 1 to 10 of about 5,753,342 (293)

Femur-tibia angle and patella-tibia angle: new indicators for diagnosing anterior cruciate ligament tears in magnetic resonance imaging

open access: yesBMC Sports Science, Medicine and Rehabilitation, 2022
Background Femur-tibia angle (FTA) and patella-tibia angle (PTA) are two MRI measurements that reflect the rotation of the knee joint. The purposes of this study were to assess whether FTA and PTA are associated with ACL tear and to explore their roles ...
Zeng Li   +7 more
doaj   +1 more source

Purity Testing of Cultivar Melon DNA Level (Cucumis melo L.) “Gama Melon Basket” using Surface Plasmon Resonance (SPR) Based on Silver Nanoparticle

open access: yesIndonesian Journal of Applied Physics, 2015
DNA level of purity has been tested by observing the phenomenon of surface plasmon resonance (SPR) in silver film + silver (Ag) nanoparticles system as DNA sensor using Kretschmann configuration. Surface plasmon resonance (SPR) phenomenon observed in the
Thoyibi T   +2 more
doaj   +1 more source

Bimetallic Layers Increase Sensitivity of Affinity Sensors Based on Surface Plasmon Resonance

open access: yesSensors, 2002
Two metals are used in resonant layers for chemical sensors based on surface plasmon resonance (SPR) - gold and silver. Gold displays higher shift of the resonance angle to changes of ambient refraction index and is chemically stable.
Yuri M. Shirshov   +4 more
doaj   +1 more source

Tunable polarization-independent and angle-insensitive broadband terahertz absorber with graphene metamaterials.

open access: yesOptics Express, 2021
In this paper, we design a polarization-independent and angle-insensitive broadband THz graphene metamaterial absorber based on the surface plasmon-polaritons resonance.
He Feng   +8 more
semanticscholar   +1 more source

Pitch Angle Structures of Ring Current Ions Induced by Evolving Poloidal Ultra‐Low Frequency Waves

open access: yesGeophysical Research Letters, 2020
Ultra‐low frequency (ULF) waves can effectively accelerate ring current ions through drift‐bounce resonance. Conventional theories have been developed to understand this resonance since the dawn of the space age, which usually assume ULF waves are quasi ...
Z.‐Y. Liu   +4 more
doaj   +1 more source

Numerical Simulation of Acoustic Resonance Enhancement for Mean Flow Wind Energy Harvester as Well as Suppression for Pipeline

open access: yesEnergies, 2021
Acoustic resonance in closed side branches should be enhanced to improve the efficiency of wind energy harvesting equipment or thermo-acoustic engine. However, in gas pipeline transportation systems, this kind of acoustic resonance should be suppressed ...
Liuyi Jiang   +3 more
doaj   +1 more source

Vertebrobasilar Junction Angle Over 90°: A Potential Imaging Marker Associated With Vertebrobasilar Atherosclerosis

open access: yesFrontiers in Neuroscience, 2022
Objective: Whether the cerebral vascular variations play an important role in the progression of intracranial atherosclerosis is yet largely unclear.
Jia Li   +7 more
doaj   +1 more source

Visible and Near-Infrared Broadband Absorber Based on Ti3C2Tx MXene-Wu

open access: yesNanomaterials, 2022
A high absorption broadband absorber based on MXene and tungsten nanospheres in visible and near-infrared bands is proposed. The absorber has a maximum absorption of 100% and an average absorption of 95% in the wavelength range of 400–2500 nm.
Yang Jia   +5 more
doaj   +1 more source

High-Sensitivity Angle Modulation Biosensor Based on Surface Plasmon Resonance of Metasurface

open access: yesIEEE Photonics Journal, 2022
Metasurface is a popular artificial layered material. In this paper, a sensor based on surface plasmon resonance with a new type of symmetrical triangular structure is designed. This paper designs a metasurface structure, the highest sensitivity of 364 &#
Xuanxiang Tong   +7 more
doaj   +1 more source

Analysis of Tapered Nanopillars for Reflective Metalens: The Role of Higher-Order Modes

open access: yesIEEE Photonics Journal, 2020
Despite the widespread interest in the metalens technology, few works show the errors during fabrication and analyze how they influence the focusing performance.
Ronghui Lin   +3 more
doaj   +1 more source

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