نتایج جستجو برای: skylight and windows

تعداد نتایج: 16829756  

Introduction: In radionuclide imaging, object scatter is one of the major factors leading to image quality degradation. Therefore, the correction of scattered photons might have a great impact on improving the image quality. Regarding this, the present study aimed to determine the main and sub-energy windows for triple energy window (TEW) scatter correction method usin...

Journal: :Haft Hesar Journal of Environmental Studies 2020

1989
RtJDIGER WEHNER Martin Lindauer R. WEHNER

In deriving compass information from the pattern of polarized light in the sky (celestial e-vector pattern), hymenopteran insects like bees and ants accomplish a truly formidable task. Theoretically, one could solve the task by going back to first principles and using spherical geometry to compute the exact position of the sun from single patches of polarized skylight. The insect, however, does...

Journal: :Environmental Health Perspectives 2005

Journal: :Buildings 2023

Enclosed airspaces of various effective emittances exist in the building envelope walls, roofs, and double/triple glazing windows, curtain walls skylight devices. Assessing energy performance a component with enclosed reflective requires evaluation all modes heat transport inside airspace. The thermal resistance (R-value) depends on dimensions orientation airspace, emittance temperature surface...

Journal: :Pacific Conservation Biology 2003

Journal: :Journal of the Illuminating Engineering Institute of Japan 1996

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