Results 91 to 100 of about 14,101 (268)

Post-magmatic hydrothermal origin of late Jurassic Liwu copper polymetallic deposits, western China: Direct chalcopyrite Re-Os dating and Pb-B isotopic constraints

Ore Geology Reviews, 2017
Abstract The Liwu copper polymetallic deposits are located in the Jianglang Tectonic Dome in the southeastern Songpan-Ganzi Fold Belt. The deposits contain more than 0.8 million tonnes (Mt) of Cu, 0.5 Mt of Zn, 133 t of Ag and 1300 t of Co. However, the detailed geologic features, formation ages and metallogeny of these deposits remain poorly ...
Qing Zhou, Wen-chang Li, Hui-hua Zhang, Tong-zhu Li, Hua-yun Yuan, Xiao-liang Feng, Chao Li, Zhen-wen Liao, Sheng-wei Wang   +8 more
openaire   +1 more source

Cobalt Single‐Atom Catalysts for Ultrafast Sulfamethoxazole Degradation: Unveiling the Chloride‐Ion‐Enhanced Formation of Co(IV)=O

Advanced Science, EarlyView.
An atomically dispersed Co–N4 single‐atom catalyst rapidly activates peroxymonosulfate to remove the antibiotic sulfamethoxazole from water. Common ions have little impact, but chloride dramatically speeds degradation by promoting a high‐valent Co(IV) = O oxidant via in situ HOCl–catalyst electron transfer.
Anting Ding, Jing Lu, Yafei Fan, Chenyu Zeng, Yuhang Lin, Yufei Shi, Zulin Zhang   +6 more
wiley   +1 more source

Regioselective Synthesis of Benzylsilanols from Kobayashi‐Type Reagents via C(sp3)─H Bond Activating 1,4‐Palladium Migration

Angewandte Chemie, EarlyView.
A Pd‐catalyzed regioselective synthesis of benzylsilanols from Kobayashi‐type reagents has been developed through a mechanistically distinct approach involving 1,4‐Pd migration followed by intramolecular transmetalation. The reaction can be combined with various prior transition‐metal‐catalyzed processes and the resulting benzylsilanols have been ...
Ryo Shintani, Keisuke Tachibana
wiley   +2 more sources

New age constraints on metamorphism, metasomatism and gold mineralisation at Plutonic Gold Mine, Marymia Inlier, Western Australia [PDF]

, 2016
The Plutonic Well Greenstone Belt (PWGB) is located in the Marymia Inlier between the Yilgarn and Pilbara cratons in Western Australia, and hosts a series of major Au deposits.
Baker, J. A., du Plessis, E., Gazley, M. F., Handler, M. R., Millet, Marc-Alban, Vry, J. K.   +5 more
core   +1 more source

Metabolism‐Based Biomarkers for Rapid Phenotypic Antibiotic Susceptibility Testing

Advanced Science, EarlyView.
Metabolic differences emerging after antibiotic exposure provide rapid phenotypic signals of susceptibility and resistance. This review summarizes metabolic biomarkers for rapid phenotypic AST, associated with nutrient uptake, respiratory activity, metabolic reprogramming, and enzymatic function. ABSTRACT The accelerating global crisis of antimicrobial
Sha Yu, Bayinqiaoge, Xi Lu, Xin Wang, Rongfeng Wang, Yi Li, Shi‐Yang Tang, Chengchen Zhang   +7 more
wiley   +1 more source

Local Chemical Gradients in a Mammalian Cortex Measured In Vivo With a Silicon Nanodialysis Mass Spectrometry Platform

Angewandte Chemie, EarlyView.
Fluorescence image of the coronal slice of mouse brain where multiple neurochemicals have been measured in vivo with a nanodialysis platform coupled to CE‐MS to reveal strong millimeter‐scale spatial chemical gradients. Formation and maintenance of such local chemical compartments in the otherwise diffusion‐homogeneous cortex indicates strong ...
Weihua Shi, Keyin Li, Yu Ding, Alex G. Armstrong, Jonathan V. Sweedler, Yurii Vlasov   +5 more
wiley   +2 more sources

Abundances of the elements in the solar system

, 2009
A review of the abundances and condensation temperatures of the elements and their nuclides in the solar nebula and in chondritic meteorites. Abundances of the elements in some neighboring stars are also discussed.Comment: 42 pages, 11 tables, 8 figures,
A. Bouvier, A. Makishima, A. Morlok, A. Pack, A.D. Brandon, A.G.W. Cameron, A.G.W. Cameron, A.N. Krot, B.D. Savage, B.E. Reddy, C. Allende Pietro, C. Esteban, C. Muenker, C. Sneden, C. Sneden, C. Soubiran, C.J. Akerman, C.R. Cowley, D. Dreibus, D. Wolf, D.S. Burnett, E. Anders, E. Anders, E. Caffau, E. Caffau, E. Caffau, E. Caffau, E. Landi, E.A. Den Hartog, E.A. Den Hartog, E.A. Den Hartog, E.A. Müller, E.K. Zinner, E.M. Burbidge, F. Pont, G. Gonzales, G. Ljung, G. Wallerstein, G.G. Goles, G.K. Nicolussi, G.K. Nicolussi, H. Beer, H. Brown, H. Palme, H. Palme, H. Palme, H. Palme, H. Palme, H. Palme, H. Suess, H.E. Suess, H.L. Xu, H.N. Russell, H.W. Zhang, H.W. Zhang, I. Segal, J. Melendez, J. Wing, J.A. Sellwood, J.E. Lawler, J.E. Lawler, J.E. Lawler, J.E. Lawler, J.M. Friedrich, J.N. Bahcall, J.R. De Laeter, J.R. De Laeter, J.R. De Laeter, J.R. Shi, J.S. Sobeck, J.T. Wasson, K. Cunha, K. Lodders, K. Lodders, K. Lodders, K.A. Venn, K.P. Jochum, K.P. Jochum, K.P. Jochum, L. da Silva, L.H. Ahrens, L.S. Lyubimkov, L.S. Lyubimkov, M. Asplund, M. Asplund, M. Asplund, M. Bergemann, M. Carlsson, M. Rotaru, M. Schönbächler, M. Schönbächler, M. Shima, M.E. Wieser, M.E. Wieser, M.F. Horan, M.J. Pellin, N. Grevesse, N. Grevesse, N. Nakamuara, N. Vitas, N.M. Evensen, P. Quinet, P.A. Bland, P.C. Scott, R. Blackwell-Whitehead, R. Wielen, R.D. Loss, R.G. Gratton, R.G. Gratton, R.G. Gratton, R.N. Clayton, S. Basu, S. Basu, S. Daflon, S.E. Woosley, T. Bensby, T. Bensby, T. Kleine, T. Lanz, T. Morel, T.L. Chang, T.L. Chang, U.J. Sofia, W. Rammensee, W.D. Harkins, W.R.J. Rolleston, Y. Lu, Y.Q. Chen, Y.V. Yi   +128 more
core   +1 more source

Tectonic setting and metallogenic chronology of the Ashele Cu–Zn deposit in Xinjiang, NW China: Constraints from Re-Os dating of pyrite, U-Pb dating of zircon and Hf isotopes

Ore Geology Reviews, 2019
Abstract The Ashele Cu-Zn deposit, an important volcanogenic massive sulfide (VMS) deposit, is located in the centre of the Ashele volcano-sedimentary basin of the Altay metallogenic belt, North Xinjiang, NW China. The No. 1 orebody is located between the roof basalt and the base tuff. The roof basalt yielded a zircon U-Pb age of 342 ± 4.6 Ma (MSWD = 
Ling-ling Gao, Ke-yong Wang, Chuan Chen, Xue-bing Zhang, Jian Li   +4 more
openaire   +1 more source

Recent Advances and Challenges in Ammonia‐Hydrogen Energy Conversion

Advanced Science, EarlyView.
This work summarizes the latest progress of various catalytic methods in ammonia‐hydrogen energy conversion. The challenges and outlook of ammonia‐hydrogen energy conversion system are also emphasized. This work expects to build a blueprint of renewable and efficient ammonia‐hydrogen energy conversion systems under mild conditions.
Menghao Lv, Runchao Qin, Jianshuo Chen, Kaiwen Yang, Jianwei Lu, Weiwei Lei, Yifu Yu   +6 more
wiley   +1 more source

Emerging Materials and Future Strategies for Solid Oxide Electrochemical Cells

Advanced Energy Materials, EarlyView.
Solid oxide electrochemical cells operate under strongly coupled electrochemical and thermodynamic conditions, where performance is constrained by interactions among crystal structure, defect chemistry, and interfacial evolution. This review, based on a structure‐defect‐property‐durability framework, reveals the roles of lattice symmetry and defect ...
Qiuchun Lu, Yufei Zhang, Han Zhao, Pooi See Lee, Daniel H.C. Chua   +4 more
wiley   +1 more source