Results 81 to 90 of about 1,179,176 (305)

From Far-Field to Near-Field Micro- and Nanoparticle Optical Trapping

open access: yesApplied Sciences, 2020
Optical tweezers are a very well-established technique that have developed into a standard tool for trapping and manipulating micron and submicron particles with great success in the last decades. Although the nature of light enforces restrictions on the
Theodoros D. Bouloumis   +1 more
doaj   +1 more source

Why human connection is the true metric of research success

open access: yesFEBS Open Bio, EarlyView.
Human‐centred mentorship can be shaped by mentor attributes, actions, intrinsic drive and career ambition. Drawing on reflections across Singapore and France, as well as workshop insights from FEBS‐IUBMB ENABLE 2024, this article shows that human‐centred mentorship creates the conditions for sustainable growth, well‐being and retention in research ...
Timothy Lin Yun Tan   +3 more
wiley   +1 more source

Hybrid multilevel plane wave based near-field far-field transformation utilising combined near- and far-field translations [PDF]

open access: yesAdvances in Radio Science, 2009
The radiation of large antennas and those operating at low frequencies can be determined efficiently by near-field measurement techniques and a subsequent near-field far-field transformation. Various approaches and algorithms have been researched but for
C. H. Schmidt, T. F. Eibert
doaj  

Directed evolution of enzymes at the crossroads of tradition and innovation

open access: yesFEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova   +2 more
wiley   +1 more source

A Novel Modified Symmetric Nested Array for Mixed Far-Field and Near-Field Source Localization

open access: yesRemote Sensing
In the process of locating mixed far-field and near-field sources, sparse nonlinear arrays (SNAs) can achieve larger array apertures and higher degrees of freedom compared to traditional uniform linear arrays (ULAs) with the same number of sensors.
Zheng Xiang   +5 more
doaj   +1 more source

A method for generating a microwave vortex field [PDF]

open access: yesКомпьютерная оптика, 2019
In this paper, we propose an on-end structure of a circular waveguide that forms a vortex field of the microwave range. We construct its numerical model.
Dmitrii Poletaev, Bogdan Sokolenko
doaj   +1 more source

Guiding AlphaFold to predict how Munc13‐1 opens Syntaxin‐1

open access: yesFEBS Open Bio, EarlyView.
The syntaxin‐1 Habc‐domain (orange), linker (pink) and SNARE motif (yellow) form a closed conformation that binds to Munc18‐1 (violet) and is opened by the Munc13‐1 MUN domain (cyan) to form the SNARE complex that triggers neurotransmitter release.
Madhurima Chattopadhyay   +2 more
wiley   +1 more source

Far-field and beam characteristics of vertical-cavity surface-emitting lasers [PDF]

open access: yes, 1996
We have determined the far-field patterns and beam parameters of vertical-cavity surface-emitting lasers (VCSELs) with different structures. The results show that the window diameter and the active-layer aperture of VCSELs strongly influence laser far ...
Zhao YG   +9 more
core  

Recovering complex elastic scatterers by a single far-field pattern [PDF]

open access: yes, 2014
We consider the inverse scattering problem of reconstructing multiple impenetrable bodies embedded in an unbounded, homogeneous and isotropic elastic medium. The inverse problem is nonlinear and ill-posed.
Li, Jingzhi, Hu, Guanghui, Liu, Hongyu
core   +1 more source

Helicity-delinked manipulations on surface waves and propagating waves by metasurfaces

open access: yesNanophotonics, 2020
Although many approaches have been proposed to manipulate propagating waves (PWs) and surface waves (SWs), usually each operation needs a separate meta-device, being unfavorable for optical integrations.
Li Shiqing   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy