Results 131 to 140 of about 775,307 (358)
OBSERVATIONS ON THE WEIGHT, VOLUME, AND ASH OF HUMAN LENSES [PDF]
, 1920 F P Maynard
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Chinese Physics Letters, 2009 Due to the intrinsic properties of neutrinos, the gravitational lens effect for neutrino should be more colorful and meaningful than the normal lens effect of photon. Other than the oscillation experiments operated at terrestrial laboratory, in principle, we can propose a completely new astrophysical method to determine not only the nature of gravity ...
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Advanced Functional Materials, EarlyView.Unravelling charge transport mechanisms in graphene nanosheet networks: by combining temperature‐dependent conductivity measurements with a Random Resistor Network model, this study identifies a transition from hopping‐dominated conduction to a band‐like transport mechanism.
Alessandro Grillo +9 more
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Physical Optics Applied to Parallel-Plate Lens Antennas
IEEE Open Journal of Antennas and PropagationThe Physical Optics (PO) method is used to derive simplified expressions to compute the radiation electric fields of planar graded-index and geodesic lenses based on a parallel-plate waveguide (PPW) implementation.
Francisco Mesa +3 more
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Delhi Journal of Ophthalmology, 2013 Contact lenses are classified on the basis of the bearing zone area as Corneal, Corneo-scleral and Scleral lenses. Scleral lenses are large in diameter (18 - 23mm) and have a bearing completely on sclera.
Nidhi Gupta, Minal Kaur, Abhilek
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Advanced Functional Materials, EarlyView.This research investigates an electro‐active chiral optical response (EACOR)‐driven dual‐channel metasurfaces with fast electrical switching rates of 52 ms, and a low operating voltage of 0.5 V. The combination of polyaniline (PANI) thin film and the exceptional topological (ET) phase of chiral gold (Au) meta‐atoms modulate holographic images through ...
Jaekyung Kim +4 more
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Recent Developments in the Manufacture, Fitting and Prescription of Contact Lenses of Regular Shape [PDF]
, 1946 Frederick Ridley
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Fast Neutron Detector Based on Hybrid 2D Perovskite Thin Films
Advanced Functional Materials, EarlyView.This work presents the direct detection of fast neutrons using flexible hybrid 2D perovskite (PEA2PbBr4) thin‐film detectors. Thanks to their high low‐Z elements content and good charge transport, these materials enable efficient neutron detection. The thin film configuration allowed the operation at low voltage, and offer scalability, flexibility, and
Ilaria Fratelli +11 more
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A criticism of the Nodal slide as an aid in testing photographic lenses [PDF]
, 1922 Tyler A. Smith, John S. Anderson
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