Results 91 to 100 of about 24,825,488 (305)

Light-by-light scattering in the presence of magnetic fields [PDF]

open access: yesPhysical Review D, 2018
The low-energy light-by-light cross section as determined by the nonlinear Euler-Heisenberg QED Lagrangian is evaluated in the presence of constant magnetic fields in the center-of-mass system of the colliding photons. This cross section has a complicated dependence on directions and polarizations.
Baier, R., Rebhan, A., Wödlinger, M.
openaire   +2 more sources

A Light Field FDL-HCGH Feature in Scale-Disparity Space

open access: yes, 2022
International audienceMany computer vision applications rely on feature detection and description, hence the need for computationally efficient and robust 4D light field (LF) feature detectors and descriptors.
Xiao, Zhaolin   +3 more
core  

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

open access: yesFEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança   +2 more
wiley   +1 more source

Highly efficient transmissive wavefront steering with acoustic metagrating composed of Helmholtz-resonators

open access: yesMaterials & Design, 2022
Recently, a kind simply structured metasurface made of binary phase modulated meta-unit shows extraordinary beam steering functionality especially in the reflective beam manipulation.
Kangyao Sun   +6 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

Forward Predicting Chromatic-Optical Parameters of the Mixed Light of White-Red Light-Emitting Diode Configurations Based on Deep Learning Algorithms

open access: yesIEEE Photonics Journal
This paper presents a novel deep learning framework that integrates experimental measurements with advanced modeling techniques to predict key optical parameters, including luminous flux, correlated color temperature (CCT), and chromaticity coordinates ...
Songsheng Lin   +7 more
doaj   +1 more source

Mirrored Light Field Video Camera Adapter [PDF]

open access: yes, 2016
This paper proposes the design of a custom mirror-based light field camera adapter that is cheap, simple in construction, and accessible. Mirrors of different shape and orientation reflect the scene into an upwards-facing camera to create an array of ...
Dansereau, Donald G.   +3 more
core  

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Point Cloud-Based Weld Seam Recognition and Localization for Robotic Welding

open access: yesApplied Sciences
The identification and spatial positioning of welds are key links in welding process matching and automatic welding path planning. Therefore, achieving automatic recognition and spatial positioning of weld point cloud features under online scanning ...
Xiang-Lei Meng   +6 more
doaj   +1 more source

Simultaneous control of plasmon–exciton and plasmon–trion couplings in an Au nanosphere and monolayer WS2 hybrid system

open access: yesAPL Photonics, 2022
Simultaneous control of plasmon–exciton and plasmon–trion couplings is fundamentally interesting for tailoring the strong light–matter interaction at the nanoscale and is intriguing for developing high-efficiency optoelectronic and nonlinear photonic ...
Liping Hou   +6 more
doaj   +1 more source

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