Results 31 to 40 of about 590,930 (190)
Nature, 1961 THE recent development of the technique of resonant scattering of γ-rays, using the Mossbauer effect, appears to raise the possibility of a terrestrial test of one theory of the red shift observed by Hubble in the light coming from distant galaxies.
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Orbital: The Electronic Journal of Chemistry, 2016 In this work, density functional calculations at BHandHLYP/6-311++G(d,p) theoretical level of structural parameters, electronic properties and vibration modes of the C2H2∙∙∙HCN∙∙∙HF and C2H4∙∙∙HCN∙∙∙HF T-shaped hydrogen complexes is presented. As is well-
Danilo Guimarães do Rego +1 more
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Starvation Stress Causes Body Color Change and Pigment Degradation in Acyrthosiphon pisum
Frontiers in Physiology, 2019 The pea aphid, Acyrthosiphon pisum (Harris), shows body color shifting from red to pale under starvation in laboratory conditions. These body color changes reflect aphid’s adaptation to environmental stress. To understand the color-shifting patterns, the
Xing-Xing Wang +6 more
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Al-Mustansiriyah Journal of Science, 2022 Polyvinyl Alcohol (PVA) polymer/ Acridine Orange (AO) dye films prepared via casting technique at room temperature. The effect of adding (Acridine Orange (AO) dye solution, Magnesium Oxide (MgO), and Aluminum Oxide (Al2O3) NPs) to the PVA polymer matrix ...
Fairooz Faeq Kareem +2 more
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Monthly Notices of the Royal Astronomical Society, 1960 Shortly after Rowland's fundamental study of the wavelengths of Fraunhofer lines, Jewell in 1896 observed that the solar wavelengths were shifted to the red side of the corresponding wavelengths observed in the laboratory. This shift became known as the red shift of solar lines, and at first led to various erroneous concepts of conditions in the solar ...
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The Variation of Optical Band Gap for ZnO:In Films Prepared by Sol-Gel Technique
Advances in Materials Science and Engineering, 2013 ZnO:In films with different concentrations (0–5 at.%) are successfully synthesized on quartz substrates using sol-gel technique. The structure, morphology, and optical properties of ZnO:In films are investigated by X-ray diffraction, atomic force ...
Guomei Tang, Hua Liu, Wei Zhang
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IEEE Photonics Journal, 2017 Frequency shifts of light scattered from either a deterministic or random medium have shown great importance in remote sensing imaging applications, however, such scattering system which combines random scatterer with obstacles has not been specifically ...
Jia Li, Yuechun Shi
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Plants, 2020 Evolutionary change is considered a major factor influencing the invasion of new habitats by plants. Yet, evidence on how such modifications promote range expansion remains rather limited. Here we investigated flower color modifications in the red poppy,
Jaime Martínez-Harms +6 more
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Influence of metal (Ag, Cd, Cu)-doping on the optical properties of ZnO nanopowder: Variation of band gap [PDF]
شیمی کاربردی روز, 2013 Metal doped ZnO (MZO, metal = Ag, Cd, Cu) with different metal ion doped concentrations were synthesized by sol-gel method. The structural and optical properties were characterized by UVâVis spectroscopy and Fourier transform infrared (FT-IR).
Bordbar Maryam +3 more
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Pulse non-linear post-compression with tunable wavelength by balancing SPM and SRS [PDF]
EPJ Web of ConferencesIn non-linear pulse spectral broadening via SPM, the original central wavelength is preserved; with SRS, it is red-shifted by an amount related to the broadening. We show that, by balancing SPM and SRS, red-shift and broadening can be tuned independently.
Imani Aref +5 more
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