Results 131 to 140 of about 32,464,068 (395)
An inverse method for the design of freeform double-reflector imaging systems
JPhys PhotonicsThis paper proposes an inverse method to design two-dimensional freeform imaging systems. The mathematical model to design a parallel-to-point double-reflector imaging system using inverse methods from nonimaging optics is presented. An imaging condition
Sanjana Verma +4 more
doaj +1 more source
Cataract image analysis system [PDF]
Eye, 1999 A system for sequential colour video capture and analysis of lens opacities is described. A sensitive RGB (Red-Green-Blue) camera is coupled to a 486 DX2/66 IBM-compatible computer to obtain high-resolution images of cataracts. Vacuoles, retro-dots, suture opacities, wedge opacities, cortical and posterior subcapsular opacities and nuclear sclerosis ...
openaire +2 more sources
Phaseless computational imaging with a radiating metasurface
, 2016 Computational imaging modalities support a simplification of the active architectures required in an imaging system and these approaches have been validated across the electromagnetic spectrum.
Boyarsky, Michael +4 more
core +2 more sources
FEBS Letters, EarlyView.Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura +2 more
wiley +1 more source
Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation
FEBS Letters, EarlyView.Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz +11 more
wiley +1 more source
Metasurface Optics for Full-color Computational Imaging
, 2018 Conventional imaging systems comprise large and expensive optical components which successively mitigate aberrations. Metasurface optics offers a route to miniaturize imaging systems by replacing bulky components with flat and compact implementations ...
Colburn, Shane +2 more
core +1 more source
A Semi-Automated Image Analysis Procedure for In Situ Plankton Imaging Systems
PLoS ONE, 2015 Plankton imaging systems are capable of providing fine-scale observations that enhance our understanding of key physical and biological processes. However, processing the large volumes of data collected by imaging systems remains a major obstacle for ...
Hongsheng Bi +6 more
semanticscholar +1 more source
FEBS Letters, EarlyView.Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas +3 more
wiley +1 more source
Cisplatin-loaded hollow gold nanoparticles for laser-triggered release
Cancer Nanotechnology, 2018 Background Hollow gold nanoparticles (HGNPs) exposed to near-infrared (NIR) light yield photothermal effects that can trigger a variety of biological effects for potential biomedical applications.
Chiyi Xiong +4 more
doaj +1 more source