Results 61 to 70 of about 376,107 (295)
The Gaussian Plasma Lens in Astrophysics. Refraction [PDF]
, 1997 We consider the geometrical optics for refraction of a distant radio source by an interstellar plasma lens, with application to a lens with a Gaussian electron column density profile.
Alan L. Fey +5 more
core +2 more sources
Lens Design for Small Diameter in Vivo Endoscopic Multiphoton Microscopy [PDF]
Biophysical Journal, 2011 Multiphoton microscopy has demonstrated the capacity to image tissue anatomy and morphology with high resolution optical depth sectioning and the potential for diagnosis of tissue health. We are building devices to transition multiphoton imaging and diagnostic techniques from the laboratory to the clinic and hospital using in vivo multiphoton endoscopy.
Brown, Christopher M. +2 more
openaire +1 more source
Advanced Engineering Materials, EarlyView.High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
wiley +1 more source
OPTICAL ILLUSION DESIGN BASED ON FOUR CONVEX LENSES SYSTEM AND CLOAKING AREA CHARACTERIZATION
Jurnal Pendidikan Fisika Indonesia, 2018 A set up of optical illusion based on 4f system and characterization of cloaking area have been carried out. The cloaking area is an area where the object is placed on the area as if it disappears from view; the set-up of cloaking area is located at the ...
I. T. Sugiarto +3 more
doaj +1 more source
Caustics of Compensated Spherical Lens Models [PDF]
, 1998 We consider compensated spherical lens models and the caustic surfaces they create in the past light cone. Examination of cusp and crossover angles associated with particular source and lens redshifts gives explicit lensing models that confirm previous ...
D M Solomons +17 more
core +2 more sources
Advanced Engineering Materials, EarlyView.It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
wiley +1 more source
Assessment of the Lens Anterior–Posterior Diameter as Compared with the Eye Globe by Ultrasonography in Rabbit [PDF]
Iranian Journal of Veterinary Surgery, 2008 Objective- Assessment of the lens anterior-posterior (AP) diameter as compared with the eye globe by ultrasonography in rabbit. Design- Descriptive study.
Abbas Veshkini +5 more
doaj
Spacetime perspective of Schwarzschild lensing
, 2000 We propose a definition of an exact lens equation without reference to a background spacetime, and construct the exact lens equation explicitly in the case of Schwarzschild spacetime.
E. Schrödinger +9 more
core +1 more source
Advanced Engineering Materials, EarlyView.Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek +5 more
wiley +1 more source
A lens-coupled scintillation counter in cryogenic environment
, 2011 In this work we present an elegant solution for a scintillation counter to be integrated into a cryogenic system. Its distinguishing feature is the absence of a continuous light guide coupling the scintillation and the photodetector parts, operating at ...
+16 more
core +1 more source