Results 71 to 80 of about 2,524,307 (296)

Major engineering breakthrough of Well XA‐1, the deepest ten‐thousand‐meter well in a global sedimentary basin

open access: yesDeep Underground Science and Engineering, EarlyView.
Well XA‐1, completed at a true vertical depth of 11 156 m in the Shawan Sag of the Junggar Basin, is the deepest predominantly near‐vertical well drilled in a sedimentary basin. The figure shows the basin's tectonic framework and well location (a), a structural cross‐section spanning the Shawan Sag and adjacent uplifts (b), and the stratigraphic column
Fangkai Liu   +3 more
wiley   +1 more source

Experimental Study on Frost Durability of Sprayed Glass Fibre Epoxy Mortar (GFEM)-Reinforced Concrete Specimens

open access: yesBuildings
Addressing the shortcomings of currently available concrete reinforcement techniques, a new method using sprayed Glass Fibre Epoxy Mortar (GFEM) reinforcement is proposed.
Jianhui Si   +6 more
doaj   +1 more source

World's fastest 10 000‐m breakthrough: The XY‐22 well redefines deep‐earth access in the Tarim Basin

open access: yesDeep Underground Science and Engineering, EarlyView.
The Tarim Basin in northwestern China hosts one of the world's deepest petroleum systems, exemplified by the XY‐22 ultra‐deep well (bottom depth: 11 116 m; ~220°C, ~145 MPa). This study integrates tectonic mapping, geological cross‐sections, ultraviolet fluorescence microscopy, and optical photothermal infrared (OPTIR) spectroscopy to characterize ...
Qingwen Tan   +4 more
wiley   +1 more source

Jessica Rawson: Life and Afterlife in Ancient China

open access: yesAsian Studies
The book is made up of four sections: Building and Dwelling, 3200–1200 BC, The Language of Objects, Converging Cultures, and Conquest on Horseback. Each section focuses on a specific period in ancient Chinese history, using archaeological findings to ...
Manuel Rivera Espinoza
doaj   +1 more source

Discovery of high‐quality Cambrian source rocks in China's first 10 000‐m‐deep well

open access: yesDeep Underground Science and Engineering, EarlyView.
Well SDTK1 penetrated the Lower Cambrian Yurtus Formation at 10 851–10 910 m in the Tarim Basin, providing the first direct drilling evidence of effective marine source rocks below 10 km. Despite overmature thermal evolution, the lower argillaceous interval retains an average total organic carbon of 4.3% and an average S1 + S2 value of 3.8 mg/g ...
Sen Zhu   +4 more
wiley   +1 more source

Chronosequencing methanogenic archaea in ancient Longji rice Terraces in China

open access: yes, 2017
\ua9 2017 Science China Press Chronosequences of ancient rice terraces serve as an invaluable archive for reconstructions of historical human-environment interactions.
Zhang G   +6 more
core   +2 more sources

China, ancient grindstone, possibly displayed at National Museum of China

open access: yes, 1973
China - Peking, Ancient grindstoneColorVolume 54, Page
Forman, Harrison, 1904-1978
core  

Comprehensive Review on Advancements in Food Preservation Technologies for Quality and Sustainability

open access: yesFood Chemistry International, EarlyView.
Preservatives limit microbial development, oxidation, and enzymatic degradation, resulting in better food quality and extended shelf life. Classified as natural, synthetic, or biological, each preservative has distinctive attributes and modes of action. Growing preference for natural preservatives aligns with clean label trends.
Monica Suresh   +4 more
wiley   +1 more source

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