Results 121 to 130 of about 396,287 (301)
Energy ReportsSouth Africa currently has the highest carbon emission intensity per kilowatt of electricity generation globally, and its government intends to reduce it.
Ephraim Bonah Agyekum +7 more
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TEMPERATURE DISTRIBUTION IN AN EVACUATED TUBE SOLAR COLLECTOR
This article analyzes the significance of precise temperature parameter control in enhancing energy efficiency and minimizing thermal losses within solar energy systems. The complex thermodynamic processes of heat generation, storage, and transfer in heliothermal systems, specifically flat-plate, evacuated tube, and concentrating solar collectors, are ...
M.N. Mamatkulov, I.T. Bozorov
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Deep Underground Science and Engineering, EarlyView.Inspired by spiders, the multilegged walk‐through assembling robot for arc parts achieves high‐precision synchronous control under heavy loads through dual‐layer hydraulic pose dynamics modeling and hierarchical pressure optimization, significantly enhancing shield tunneling assembly efficiency and precision.
Quan Xiao +5 more
wiley +1 more source
Zebrafish ventral gastrula fate map reveals neural crest progenitor domain
Developmental Dynamics, EarlyView.Abstract Background Fate maps relate progenitor cell positions to later fates and locations of their progeny, revealing early embryonic organization. Previous zebrafish fate maps identified the origin of germ layers and derivative cell fates, but ventral gastrula progenitor domains were not fully resolved. In particular, the neural crest, a multipotent
Elaine E. Kushkowski, Victoria E. Prince
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Youngstown Sheet and Tube Company's Campbell Works coal tower
, 1920 To produce coke for the steel-making process, coal is subjected to a baking process which eliminates undesired byproducts. At the Youngstown Sheet and Tube Company's Campbell works, coal was stored in a coal tower.
Youngstown Sheet and Tube Company
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Nitrogen‐Site Isomerism Unlocks Exciton Dissociation in Vinylene‐Linked COF‐Based Photocatalysts
EcoEnergy, EarlyView.Two regioisomeric vinylene‐linked covalent organic frameworks (COFs) constructed from diazine units with different nitrogen positions are developed for photocatalytic hydrogen evolution reaction (HER). Although structurally similar, the isomeric COFs exhibit distinct electron distribution and charge‐separation behaviors, leading to a more than twofold ...
Ming Wang +10 more
wiley +1 more source
机车电传动The low evacuated-tube maglev systems feature high operating speeds, enclosed operating environments, and zero pollution emissions. In China, research on winding solutions for low evacuated-tube electrodynamic suspension (EDS) systems remains at the ...
ZHANG Peng +3 more
doaj
Youngstown Sheet and Tube Company's Brier Hill Works
, 1920 This photograph shows the Brier Hill Works, Youngstown, Ohio, ca. 1920-1929. In 1923, the Youngstown Sheet and Tube Company under James A. Campbell bought the Brier Hill Steel Company. Always a tenacious businessman, Campbell also acquired valuable ore,
Youngstown Sheet and Tube Company
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