Results 81 to 90 of about 492,788 (354)
Solar Furnace: Heliostat and Concentrator Design [PDF]
, 2011 In recent decades, solar energy has been shown as a viable, clean, and abundant alternative to fossil fuels. Many methods of solar energy collection are being researched, with solar thermal electrochemistry being one of the most promising.
Gaide, Matthew +2 more
core +2 more sources
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Breast cancer is a neoplastic disease with high prevalence among women. Radiotherapy is one of the principal treatment modalities for this disease, but it poses significant challenges. This study aimed to compare and evaluate the technical and dosimetric performance of conventional C‐arm linac systems and a new design, Halcyon, in the ...
Mustafa Çağlar +8 more
wiley +1 more source
Indian Dermatology Online Journal, 2014 Pigmentation featured millions of years ago and perhaps began with an amoeba frightening off a predator with some agent such as dopamine to prevent its attachment for phagocytosis by an enemy. This paper suggests that the environmental forces of grip and
Sanju Arianayagam, Terence J Ryan
doaj +1 more source
The Brightness of Starlink and OneWeb Satellites During Ingress and Egress from Terrestrial Eclipses [PDF]
arXiv, 2021 A model that combines celestial geometry and atmospheric physics is used to calculate the dimming of artificial satellites as they enter and exit the Earth's shadow. Refraction of sunlight by the terrestrial atmosphere can illuminate a satellite while it is inside the eclipse region determined from geometry alone.
arxiv
Design and validation of a novel dosimetry phantom for motion management audits
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Background We present a novel phantom design for conducting end‐to‐end dosimetry audits for respiratory motion management of two anatomical treatment sites. The design enables radiochromic film measurements of the dose administered to the target throughout the respiratory cycle (motion‐included) and the dose delivered to the time‐averaged ...
Alex Burton +5 more
wiley +1 more source
Sunlight-Operated TiO2-Based Photocatalysts
Molecules, 2020 Photo-catalysis is a research field with broad applications in terms of potential technological applications related to energy production and managing, environmental protection, and chemical synthesis fields. A global goal, common to all of these fields,
Irene Barba-Nieto +3 more
doaj +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.Purpose Linear accelerator (LINAC)‐based single‐isocenter multi‐target (SIMT) treatment has streamlined the cranial stereotactic radiosurgery (SRS) workflow. Though efficient, SIMT delivery adds additional challenges that should be considered, including increased sensitivity to rotational errors for off‐isocenter targets.
Yohan A. Walter +4 more
wiley +1 more source
FoodsIn their recent review, Vicente and Pereira concluded that pork meat can be an option for a healthful and sustainable diet [...]
William B. Grant
doaj +1 more source
Bipolar disorders: is there an influence of seasonality or photoperiod?
Brazilian Journal of Psychiatry, 2017 Objective: To increase understanding of the influence of photoperiod variation in patients with bipolar disorders. Methods: We followed a sample of Italian bipolar patients over a period of 24 months, focusing on inpatients. All patients admitted to the
Andrea Aguglia +2 more
doaj +1 more source
Can Natural Sunlight Induce Coherent Exciton Dynamics? [PDF]
arXiv, 2014 Excitation of a model photosynthetic molecular aggregate by incoherent sunlight is systematically examined. For a closed system, the excited state coherence induced by the sunlight oscillates with an average amplitude that is inversely proportional to the excitonic gap, and reaches a stationary amplitude that depends on the temperature and coherence ...
arxiv