Results 81 to 90 of about 10,092,068 (254)

Volumetric Light-Field Excitation [PDF]

Scientific Reports, 2016
AbstractWe explain how to concentrate light simultaneously at multiple selected volumetric positions by means of a 4D illumination light field. First, to select target objects, a 4D imaging light field is captured. A light field mask is then computed automatically for this selection to avoid illumination of the remaining areas.
David C. Schedl, Oliver Bimber
openaire   +2 more sources

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

FEBS 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

Precision separation of thick double-sided microlens arrays via stepwise immersion ultrafast laser modification and controlled thermal stress

Materials & Design
Double-sided microlens arrays (DSMLAs) are integral to large field of view imaging and precise beam shaping in compact optical systems. However, separating thick DSMLAs with precision and efficiency remains challenging, particularly due to laser ...
Qiuchen Xie, Tianfeng Zhou, Zhikang Zhou, Xuan Cui, Zihao Zeng, Peng Liu   +5 more
doaj   +1 more source

Mirrored Light Field Video Camera Adapter [PDF]

, 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., Tsai, Dorian, Corke, Peter, Martin, Steve   +3 more
core  

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

FEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux, Christian Lévêque, Fodil Azzaz, Marion Sangiardi, Sarosh R Irani, Michael Seagar, Jacques Fantini, Oussama El Far   +7 more
wiley   +1 more source

A Phenomenological Model for Dynamic Expansion of Defects in Semiconductor Lasers

Crystals
The failures of semiconductor lasers are often linked to the emergence or growth of defects. However, most research mainly focuses on the postmortem failure analysis caused by defects, lacking dynamic process analysis of defect expansion. This limitation
Yuqi Zhang, Jia Zhao, Feng Gao
doaj   +1 more source

Light field denoising using 4D anisotropic diffusion [PDF]

, 2019
International audienceIn this paper, we present a novel light field denoising algorithm using a vector-valued regularization operating in the 4D ray space.
Guillemot, Christine, Christine Guillemot, Pierre Allain, Guillo, Laurent, Laurent Guillo, Allain, Pierre   +5 more
core   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

An Investigation into the Planning of Cutting Interpolation Point Positions to Improve the Surface Quality of Satellite Laser Communication Reflectors

Micromachines
Spherical/aspherical mirrors are widely used in satellite communication and imaging systems, but their reflectivity is affected by the surface roughness value.
Guilin Zhuang, Qian Yu, Zihao Zeng
doaj   +1 more source

Multi-Shot Single Sensor Light Field Camera Using a Color Coded Mask [PDF]

, 2018
International audienceWe present a compressed sensing framework for reconstructing the full light field of a scene captured using a single-sensor consumer camera. To achieve this, we use a color coded mask in front of the camera sensor.
Guillemot, Christine, Unger, Jonas, Miandji, Ehsan   +2 more
core