Solar Radiation
Solar Radiation - Related Videos
07:18
Experimental System of Solar Adsorption Refrigeration with Concentrated Collector
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Cited by 5 •
2017
With solar energy as the driving force, a novel adsorption refrigeration system has been developed and experimentally investigated. Water vapor and zeolite formed the working pair of the adsorption system. This manuscript describes the setup of the experimental rig, the operation procedure, and the important results.
10:30
Dye-sensitized Solar Cells
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2023
Source: Tamara M. Powers, Department of Chemistry, Texas A&M University Today's modern world requires the use of a large amount of energy. While we harness energy from fossil fuels such as coal and oil, these sources are nonrenewable and thus the supply is limited. To maintain our global lifestyle, we must extract energy from renewable sources. The most promising renewable source, in terms of abundance, is the sun, which provides us with more than enough solar energy to fully fuel our...
09:19
In Situ Monitoring of the Accelerated Performance Degradation of Solar Cells and Modules: A Case Study for Cu(In,Ga)Se2 Solar Cells
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Cited by 7 •
2018
Two 'Combined Stress test with in situ measurement' setups, which allow real-time monitoring of accelerated degradation of solar cells and modules, were designed and constructed. These setups allow the simultaneous use of humidity, temperature, electrical biases, and illumination as independently controlled stress factors. The setups and various experiments executed are presented.
08:17
Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy
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Cited by 9 •
2015
Stereotactic ablative body radiation therapy (SBRT) involves the precise delivery of high-dose radiation to cancer tumor targets. A novel SBRT platform offers a first-of-its-kind gimbaled radiation accelerator mounted within a pivoting O-ring gantry capable of dynamic image-guided tumor tracking. Here, we describe dynamic tumor tracking for lung targets.
02:59
Biological Effects of Radiation
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2020
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they produce ions...
FAQs
Photosynthetic pigments capture mainly visible wavelengths and initiate electron transfer, linking light absorption to the formation of chemical energy. That energy supports carbon fixation, in which carbon is incorporated into organic molecules. The efficiency of this sequence helps determine how plants grow and contribute to ecological productivity under different light environments.
Ultraviolet radiation can damage DNA and other cellular components, creating biological stress rather than directly supporting the main photosynthetic energy pathway. Plants and other organisms limit this harm through protective pigments, structural barriers, and repair pathways. The balance between useful light capture and ultraviolet injury influences survival in exposed environments.
Pigments determine which portions of incoming light organisms can use or screen, while protective structures reduce exposure to damaging radiation. Repair pathways address cellular injury that still occurs. Together, these features allow organisms to adjust to different light environments, linking solar exposure with physiological performance, persistence, and adaptation.
Studies can examine photosynthetic activity, electron transfer, carbon fixation, growth, cellular damage, survival, and ecological productivity. Comparing these outcomes across light environments helps distinguish energy-supplying effects from environmental stress. The same framework can connect responses at the cellular and plant levels with broader patterns in microbial ecology and ecosystems.
Researchers relate light exposure to processes such as photosynthesis, growth, cellular protection, and survival. In plant physiology, the emphasis may be on pigment-mediated energy conversion and damage control. In microbial ecology, studies can consider how radiation shapes persistence and productivity. These comparisons reveal how organisms respond to changing light environments.
Changing light environments can alter the balance between photosynthetic energy gain and radiation-induced stress. Adaptation research therefore examines pigments, protective structures, and repair pathways as traits that influence survival and performance. In climate-related biology, these responses help connect environmental conditions with plant growth, microbial communities, and ecosystem productivity.