Rooftop CPV-thermal tech to produce electricity and freshwater
It s claimed the decentralized desalination system can deliver a levelized cost for desalinated water of US$0.7-4.3/m3, depending on PV costs and electricity prices. It was built with several concentrated photovoltaic/thermal (CPV-T) collectors, a hot water tank, a V-MEMD module, a seawater feed tank, and a distillate tank.Researchers from the King Abdullah University of Science and Technology (KAUST) in Saudi Arabia and the Donghua University in China have designed a decentralized cogeneration solution for the production of power and freshwater that combines concentrated photovoltaics and solar .
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Capturing CO
2 emissions and catalytically converting the greenhouse gas into CO, a valuable chemical feedstock, is one option for reducing greenhouse gases associated with climate change. Precious metals can catalyse this reaction, but they are costly and supplies are limited, said Samy Ould-Chikh, a research engineer in KAUST.
“Iron oxide catalysts are an inexpensive alternative,” Ould-Chikh said in a statement. “However, in the presence of CO, the iron is carburised forming iron carbide, which leads to by-product formation and catalyst deactivation.”
According to KAUST, adding titanium to the catalyst particles could stabilise iron oxide against carburisation. Chemical incompatibilities between iron and titanium precursors, however, had made it impossible to synthesise nanoparticles incorporating a homogenous mixture of the two metals in the necessary ratio. To overcome this limitation, the team turned to MOFs, porous materials made from metal ions connected together by
External Partnerships
The office plans to expand its external partnerships, aiming to increase efforts to partner with corporations on research projects, and boost corporate recruitment of Duke graduates.
R. Sanders Williams, the interim vice president for research, said in a statement that the RTC will play an important role in raising funds to support endowed professorships that will benefit faculty for pursuing entrepreneurial efforts and their research and teaching. The office will also provide additional flexible research spaces for important work, said Williams. “We need space for research that is still not-for-profit Duke research, but would then become an idea that is competitive in the marketplace,” Williams said. “We need flexibility and speed.”
By Lambert Strether of Corrente.
Because I’m a fan of povidone-iodine as a Covid prophylactic (though disclaiming any ability or desire to give medical advice), I thought I would investigate kelp, since I thought that iodine was derived from kelp. Alas, it once was, but that’s “no longer economically viable.” (A substance derived from kelp, algin, is used as an emulsifying and bonding agent in toothpastes, shampoos, salad dressings, puddings, cakes, dairy products, frozen foods, so if you’re a ranch dressing fan, read on.) So, normally when I wander into the biosphere I get lost and don’t come out where I expect; with kelp, I got lost on my very first steps in!
Advanced sound system in Grand Mosque uses about 7,500 speakers May 07, 2021 About 7,500 speakers spread throughout the Grand Mosque, its floors, squares, corridors, and streets surrounding the Grand Mosque, transmit the sound of the call to prayer and the imam as part of an advanced sound system.
Saudi Gazette report
MAKKAH About 7,500 speakers spread throughout the Grand Mosque, its floors, squares, corridors, and streets surrounding the Grand Mosque, transmit the sound of the call to prayer and the imam as part of an advanced sound system.
The Director of the General Administration for Operation and Maintenance of the General Presidency for the Affairs of the Grand Mosque and the Prophet’s Mosque, Mohsen Al-Salami, explained that the sound system in the Grand Mosque is one of the largest sound systems used in the world, as it functions through an advanced acoustic sensor with the sensitivity that commensurates with the need