Results 91 to 100 of about 45,495 (276)
Oikos, EarlyView.Some prey species have evolved background matching, that is they resemble their surrounding environment in terms of colour and/or brightness. When prey populations inhabit patchy environments, they may even have evolved specialised phenotypes: each phenotype matching a specific subset of patches.
Lilian Cabon, Holger Schielzeth
wiley +1 more source
Highly Efficient Broadband Achromatic Microlens Design Based on Low-Dispersion Materials
EngineeringMetalenses with achromatic performance offer a new opportunity for high-quality imaging with an ultra-compact configuration; however, they suffer from complex fabrication processes and low focusing efficiency.
Xueqian Wang +9 more
doaj +1 more source
Liquid jet capabilities for ultrafast chemistry at the SwissFEL Alvra instrument
Journal of Synchrotron Radiation, EarlyView.The technical aspects of the Alvra endstation are outlined and its scientific capabilities are demonstrated with commissioning results obtained during the early years of SwissFEL's operation.The Alvra experimental station at the Swiss X‐ray free‐electron laser, SwissFEL, investigates ultrafast dynamics in chemical and biological systems using X‐ray ...
Claudio Cirelli +9 more
wiley +1 more source
A Millimeter-Wave Achromatic Half Wave Plate
, 2005 We have constructed an achromatic half wave plate (AHWP) suitable for the millimeter wavelength band. The AHWP was made from a stack of three sapphire a-cut birefringent plates with the optical axes of the middle plate rotated by 50.5 degrees with ...
Hanany, S. +5 more
core +2 more sources
Integrative Zoology, EarlyView.Integrating comparative spectrometry, image analysis, and thermal modeling, we reveal that (1) females optimize crypsis via background matching, (2) males prioritize high‐contrast disruptive patterning at a significant thermoregulatory cost (reduced solar heat gain), and (3) habitat‐specific monomorphism in Diploderma slowinskii underscores ecological ...
Yuning Cao, Lin Shi, Yin Qi
wiley +1 more source
Paidéia (Ribeirão Preto), 2004 Surface color similarity may cause the perceptual grouping of uniform achromatic surfaces on an achromatic background both when the background is homogeneous and when the background contains achromatic context surfaces.
Sergio Cesare Masin
doaj +1 more source
, 2019 We study two parameters that arise from the dichromatic number and the vertex-arboricity in the same way that the achromatic number comes from the chromatic number.
Felsner, Stefan +3 more
core
Science with the ngVLA: Extreme Scattering Events and Symmetric Achromatic Variations [PDF]
, 2018 Radio variability in quasars has been seen on timescales ranging from days to years due to both intrinsic and propagation induced effects. Although separating the two is not always straight-forward, observations of singular `events' in radio light curves
Vedantham, H. K.
core +1 more source
An achromatic polarization retarder realized with slowly varying linear and circular birefringence
, 2011 Using the phenomena of linear and circular birefringence we propose a device that can alter general elliptical polarization of a beam by a predetermined amount, thereby allowing conversion between linearly-polarized light and circularly polarized light ...
Aben +9 more
core +1 more source
Methods in Ecology and Evolution, EarlyView.Abstract Advances in digital imaging and software tools have provided increasingly accessible datasets and methods for analysing colour evolution. Despite the variety of computational packages available, most rely on colour classification before running analyses.
Shawn T. Schwartz +7 more
wiley +1 more source