Results 81 to 90 of about 140,123 (307)

Diagenesis of Carbonate Rocks

Journal of the Japanese Association for Petroleum Technology, 1977
Diagenesis is defined as the process involving physical and chemical changes in sediment after deposition that converts it to consolidated rock. Carbonate rocks are mainly composed of carbonate minerals only and have a polygenic origin, and thus are different considerably from clastic and pyroclastic rocks.
openaire   +2 more sources

Engineered Heparinized GQDS/HPEI–Polyamide Membrane for Bilirubin Removal via One Step Anti Coagulation

Advanced Materials Interfaces, EarlyView.
A multifunctional heparinized polyamide membrane embedded with graphene quantum dots (GQDs) and hyperbranched polyethyleneimine (HPEI) is engineered for efficient bilirubin removal via a one‐step anticoagulation–adsorption process. The membrane demonstrates enhanced hemocompatibility, prolonged clotting times, and high bilirubin adsorption capacity ...
Abdur Rehman Mushtaq Ahmad, Maria Wasim, Aneela Sabir, Muhammad Shafiq, Syed Abdul Basit Shah, Maoz Maoz, Vanni Lughi   +6 more
wiley   +1 more source

Magnesium Isotopes Archive the Initial Carbonate Abundances of Metasedimentary Rocks Prior to Thermal Decarbonation

Geophysical Research Letters
Investigating the carbonate preservation efficiency (CPE) of continental crust is crucial to understand the global carbon cycle, which requires constraints on initial carbonate abundances (ICAs) of crustal rocks.
Qingshang Shi, Yongsheng He, Zhidan Zhao, Franco Rolfo, Chiara Groppo, Nigel Harris, Hongjie Wu, Ningyuan Qi, Shan Ke   +8 more
doaj   +1 more source

Laser In Situ U–Pb Isotope Dating of Carbonate Rocks in Weijia Guyot in the Western Pacific Ocean and Its Geological Significance

Journal of Marine Science and Engineering
Shallow-water carbonate rocks constitute a crucial component of large guyots, arising in distinct environments and harboring valuable insights into the evolutionary stages of seamount islands as well as the tectonic conditions of the underlying oceanic ...
Zhenquan Wei, Jinfeng Ma, Gaowen He, Lifeng Zhong, Limin Zhang, Bin Zhao   +5 more
doaj   +1 more source

Hierarchical Structure and Fabrication of Functionally Graded Biointerfaces in the Mussel Byssus

Advanced Materials Interfaces, EarlyView.
The byssus is a fibrous protein‐based holdfast consisting of mechanically distinct interfaces, which mussels use to anchor their soft living tissue to hard seashore surfaces. Here, multiscale methodologies were used to elucidate the compositional and structural features underlying these functionally graded interfaces and how they are fabricated through
Lucia Youssef, Jenaes Sivasundarampillai, Sydney Mikulin, Franziska Jehle, Matthew J. Harrington   +4 more
wiley   +1 more source

Mineralogy, geochemistry, petrography, and depositional environment of Gebel El-Qurn, Early Eocene, West Luxor, South Egypt

Bulletin of the National Research Centre, 2018
Background Luxor represented the modern Egyptian city that occupies the site of ancient Thebes. Thebes Mountain on the West Bank of the Nile, opposite the town of Luxor, is among the most famous historical sites of the world.
Esmat A. Abou El-Anwar, H. S. Mekky, S. H. Abd El Rahim   +2 more
doaj   +1 more source

Platinum-group element mineralisation in the Unst ophiolite, Shetland [PDF]

, 1984
The ophiolitic basic and ultrabasic rocks of the island of Unst, Shetland comprise a sequence of harzburgites, dunites, clinopyroxene-rich cumulates, and gabbro, within tectonic blocks that have been thrust over a migmatite complex during the Laxer ...
Gunn, A.G., Leake, R.C., Styles, M.T.
core  

The laurentian record of neoproterozoic glaciation, tectonism, and eukaryotic evolution in Death Vally, California [PDF]

, 2013
Neoproterozoic strata in Death Valley, California contain eukaryotic microfossils and glacial deposits that have been used to assess the severity of putative Snowball Earth events and the biological response to extreme environmental change.
A. E. Fallick, A. R. Prave, Aitken, ALLISON, Allison, Armin, Bekker, Berney, BOND, Bowring, Brasier, BURCHFIEL, CLOUD, Cohen, Colpron, CORSETTI, Corsetti, Corsetti, D. Trotzuk, Dalziel, Dalziel, E. F. Smith, Erwin, F. A. Macdonald, F. Waechter, Fanning, FLECK, Goodge, Gutstadt, HOFFMAN, Hoffman, Hoffmann, James, K. Oates, Karlstrom, Kaufman, Kenny, Knauth, Labotka, Licari, Love, Lund, Macdonald, Macdonald, MILLER, Moores, NOBLE, Prave, R. Petterson, S. B. Pruss, Sears, SNOW, Snow, Snow, Timmons, Tucker, Vorob'eva, Walker, WERNICKE, Wright, WRIGHT, Yin, Zhou   +62 more
core   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source