Results 71 to 80 of about 315 (110)

Intermediate filaments spatially organize intracellular nanostructures to produce the bright structural blue of ribbontail stingrays across ontogeny. [PDF]

Front Cell Dev Biol
Blumer MJ, Surapaneni VA, Ciecierska-Holmes J, Redl S, Pechriggl EJ, Mollen FH, Dean MN.   +6 more
europepmc   +1 more source

Reducing Coke and Increasing Bio-Oil Yield during Catalytic Fast Pyrolysis of Biomass Using Phosphorus-Modified Zeolite Catalysts. [PDF]

ACS Sustain Chem Eng
Wrasman CJ, Petel BE, Pierce C, Orton KA, Palmer S, Hall JN, Kim H, Dogan F, Krause TR, Wang H, Yu X, Dell'Orco S, Unocic KA, Foucher AC, Grejtak T, Cullen DA, Blaskowski G, Baddour FG, Chen X, Iisa K, Dutta A, Habas SE, Griffin MB.   +22 more
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Ellipsoidal reflectors in biomedical diagnostic

SPIE Proceedings, 2013
In this work were considered photometric tools for biomedical diagnostics, which contain a mirror ellipsoid of revolution. Proposed schemes with ellipsoidal reflectors for diagnostics in reflected and in reflected and transmitted light. A comparative analysis of measurement standards scattering surfaces was held.
M. A. Bezuglyi, N. V. Bezuglaya
openaire   +1 more source

Power focusing characteristics of ellipsoidal reflector

IEEE Transactions on Antennas and Propagation, 1984
Power focusing characteristics of a prolate spheroidal reflector, the aperture of which is parallel to the line connecting the two focuses, are numerically studied. As a transmitting and a receiving antenna, linear wires with finite length are placed at or near the focuses of the reflector. Reflected near fields from the reflector are calculated by the
K. Hirasawa, K. Fujimoto, T. Uchikura, S. Hirafuku, H. Naito   +4 more
openaire   +1 more source

Radiant heating using an ellipsoidal reflector

Journal of Physics E: Scientific Instruments, 1974
A heat source positioned at one focus of a suitably shaped ellipsoidal reflector has been used to heat small objects placed at the other focus. With a tungsten-halogen lamp as the source, temperatures of the order of 1100 degrees C were obtained: substituting a conventional tungsten lamp allowed for greater flexibility in control at lower temperatures.
B A Unvala, A Maries
openaire   +1 more source

Blood glucose analysis by Raman spectrophotometer with ellipsoidal reflector

Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2021, 2021
Authors considered the possibility of designing a non-invasive biomedical Raman spectrophotometer for the near infrared range using an ellipsoidal reflector as a collecting and focusing optical element to evaluation the biological media components, particularly glucose level.
Andrii Haponiuk, Natalia Bezugla, Kostiantyn Vonsevych, Mikhail Bezuglyi, Aliya Zilgaraeva, Piotr Kisala, Saule Luganskaya, Sandugash Orazalieva   +7 more
openaire   +1 more source

Optical biometry of biological tissues by ellipsoidal reflectors

SPIE Proceedings, 2013
Possibilities of measuring systems that uses ellipsoidal reflectors for determining the optical parameters of biological tissue are studied. The modified inverse Monte Carlo method was designed for biomedical photometric system “biological tissue - ellipsoidal mirror”.
M. A. Bezuglyi, N. V. Pavlovets
openaire   +1 more source

Large Amount of Off-Axis Machining Ellipsoidal Reflector

Applied Mechanics and Materials, 2014
The article introduces the off-axis ellipsoidal mirror processing and testing, and uses AutoCAD software to calculate the maximum aspheric mirrors degrees. After processing the off-axis ellipsoidal reflector inclination error of 1.55arcsec, root mean square roughness ((RMS) of 3.21nn, focal length error is less than 1mm, and the surface accuracy can ...
Jun Feng He, Chang Chun Huang
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Ray tracing in ellipsoidal reflectors for optical biometry of media

Applied Optics, 2017
In this paper, an analytical basis of ray tracing for optical biometry of media by ellipsoidal reflectors was developed. A ray-tracing algorithm was created, which involves determining the point of interaction of the incident beam with the ellipsoidal reflector, calculating the direction of the reflected beam, and determining the intersection point of ...
M. A. Bezuglyi, N. V. Bezuglaya, I. V. Helich   +2 more
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Aberrations of Ellipsoidal Reflectors for Unit Magnification

Applied Optics, 1974
Ellipsoidal reflectors are useful for the 1:1 imaging of small objects without spherical and chromatic aberration. The magnitude of the off-axis aberrations of such reflectors is computed by application of Fermat's principle to the Hamiltonian point characteristic. The limiting form of the mirror aperture for which these aberrations do not exceed a set
openaire   +2 more sources