QUATERNARY

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Multi-parameter modeling and analysis of ground motion amplification in the Quaternary sedimentary basin of the Beijing-Tianjin-Hebei region
《Earthquake Science》2025年第2期136-151,共16页Hong Zhou 
funded by the General Program of the National Natural Science Foundation of China(No.42174070);the General Program of the Beijing Natural Science Foundation(No.8222035).
Basin effect was first described following the analysis of seismic ground motion associated with the 1985 MW8.1 earthquake in Mexico.Basins affect the propagation of seismic waves through various mechanisms,and severa...
关键词：three-dimensional basin effect ground motion modeling BP neural network algorithm spectral element method 
Enrichment mechanisms and accumulation model of ultra-deep water and ultra-shallow gas:A case study of Lingshui 36-1 gas field in Qiongdongnan Basin,South China Sea
《Petroleum Exploration and Development》2025年第1期50-63,共14页XU Changgui WU Keqiang PEI Jianxiang HU Lin 
Supported by the Research Project of CNOOC(KJZH-2021-0003-00).
Based on petroleum exploration and new progress of oil and gas geology study in the Qiongdongnan Basin,combined with seismic,logging,drilling,core,sidewall coring,geochemistry data,a systematic study is conducted on t...
关键词：South China Sea Qiongdongnan Basin ultra-deep water ultra-shallow layer natural gas gas hydrate QUATERNARY gravity flow submarine fan accumulation model 
Photocatalytic Reductive Azaarenylation of Cyclopropanes via Consecutive Photo-induced Electron Transfer:A Facile Route toα-Quaternary Azaarenes
《Chinese Journal of Chemistry》2024年第23期3035-3040,共6页Gaolei Sun Wenhui Wei Xiaowei Zhao Baokun Qiao Zhiyong Jiang 
Grants from the National Natural Science Foundation of China(22271077,21925103,21901062);the Natural Science Foundation of Henan(232300421078,222301420046);the Program for Science&Technology Innovation Talents in Universities of Henan Province(24HASTIT001);the China Postdoctoral Science Foundation(2021M690890);Henan University are gratefully acknowledged.
α-Azaarene quaternary carbon centers are prevalent in drug molecules,making the development of efficient synthetic approaches of great interest.Herein,we describe an unprecedented method for constructingα-all-carbon...
关键词：Photoredox catalysis Reductive azaarenylation ConPET CROSS-COUPLING Radical reactions N-HETEROCYCLES 
Asymmetric synthesis of difluorinatedα-quaternary amino acids(DFAAs)via Cu-catalyzed difluorobenzylation of aldimine esters
《Chinese Chemical Letters》2024年第12期416-421,共6页Xiang Huang Dongzhen Xu Yang Liu Xia Huang Yangfan Wu Dongmei Fang Bing Xia Wei Jiao Jian Liao Min Wang 
supported financially by the Youth Innovation Promotion Association CAS(No.2022375);National Nature Science Foundation of China(No.22171258);the Biological Resources Programme,Chinese Academy of Sciences(No.KFJ-BRP-008);the Sichuan Science and Technology Program(No.2022ZYD0038)。
Increasing interests of difluorinated amino acids(DFAAs)have been raised in recent years due to their widespread bio-organic and medical applications.However,to date,only few investigations focused on their asymmetric...
关键词：Cu-catalyzed Asymmetric difluorobenzylation Difluorobenzylatedα-quaternary amino acids Polyfluoroaryl amino acids Difluorocarbocation 
Magnetostratigraphy and paleoenvironmental record of late Cenozoic sediments in the Taiyuan Basin,North China
《Journal of Palaeogeography》2024年第4期971-992,共22页Zhi-Qiang Feng Qian Li Wei Han Kun-Yuan Ma Yong-Jiang Liu Rong-Zhu Wei Yan-Wei Du Yong Lei Guang-Hui Li 
co-supported by the National Natural Science Foundation of China (No.202103021224012);the Shanxi Provincial Department of Science and Technology-Shanxi Youth Project (No.202103021223037);the China Geological Survey (Nos.202103021223037,121201102000150012-05);the Geological Exploration Fund Project of Shanxi Provincial Department of Land and Resources (No.HXCT01-2018F005);the Natural Science Foundation of Shanxi Province (No.2019L0126,2019L0054);the Outstanding Doctoral Scholarship of Shanxi Province (No.SXYBKY2019032)。
The Taiyuan Basin is of importance for intraplate tectonic deformation in North China and contains Cenozoic strata with a maximum thickness of 3800 m.A~853.5-m-deep borehole(ZK01)with an overall core recovery rate of ...
关键词：Taiyuan Basin Core sediment MAGNETOSTRATIGRAPHY Climate change PALEOENVIRONMENT QUATERNARY 
Transformation of chemical ordering and configuration entropy in quaternary Cr_(x)Ti_(0.75)Mo_(0.75)V_(1.5−x)AlC_(2) MAX system
《Journal of Advanced Ceramics》2024年第11期1861-1871,共11页Yaqing Xue Hong Yu Hongwei Liang Xiaomei Wang Lili Xue Shiyao Lei Conghui Meng Long Wang Cheng-Feng Du 
grateful for the financial support from the National Natural Science Foundation of China(No.52275212);the“Special Lubrication and Sealing for Aerospace”Shaanxi Provincial Science and Technology Innovation Team(No.2024RSCXTD-63);the Fundamental Research Funds for the Central Universities(No.D5000230047);the Aeronautical Science Foundation of China(2024Z046053001);The authors thank the support and expert advice of Professor Zhang Qichun's group(City University of Hong Kong)on the calculations.
Two new quaternary Cr_(x)Ti_(0.75)Mo_(0.75)V_(1.5−x)AlC_(2)(x=1.25 and 1)MAXs and Cr_(0.75)Ti_(0.75)Mo_(0.75)V_(0.75)AlC_(2) are synthesized via hot pressing.An unprecedented transition in M-site atomic occupancy from...
关键词：MAX phase ceramics medium-high entropy chemical order mechanical property thermal conductivity 
Access to N-a-quaternary chiral morpholines via Cu-catalyzed asymmetric propargylic amination/desymmetrization strategy
《Science Bulletin》2024年第22期3516-3524,共9页Peng Chen Mao-Mao Zhang Li Rao Yuan-Heng Li Yue Jia Ying Tan Wen-Jing Xiao Liang-Qiu Lu 
supported by the National Key R&D Program of China(2023YFE0110100);the National Natural Science Foundation of China(22271113,92256301,21822103,and 21820102003)。
Morpholines are widespread in many biologically and catalytically active agents,thus being an important aim of pharmaceutical and synthetic chemists.However,efficient strategies for the catalytic asymmetric synthesis ...
关键词：Chiral morpholine Copper catalysis DESYMMETRIZATION Propargylic amination 
Microstructure and martensitic transformation in quaternary NiTiHfV alloy
《Transactions of Nonferrous Metals Society of China》2024年第10期3282-3294,共13页Aleksandr V.SHUITCEV Yi REN Ze-zhong ZHANG Roman N.VASIN Bin SUN Li LI Yun-xiang TONG 
supported by the National Natural Science Foundation of China(Nos.52201207,52271169)。
The effect of age hardening on the microstructure,martensitic transformation behavior,and shape memory properties of the(Ni_(50)Ti_(30)Hf_(20))_(95)V_(5)alloy was investigated by scanning electron microscopy,transmiss...
关键词：shape memory alloys NiTiHfV H-phase Laves phase martensitic transformation 
Combining phylogeography and ecological niche modeling to infer the evolutionary history of the Cordoba vesper mouse(Calomys venustus)
《Integrative Zoology》2024年第5期913-928,共16页Juan Diego PINOTTI María Laura MARTIN Marina Beatriz CHIAPPERO Verónica ANDREO Raúl Enrique GONZÁLEZ-ITTIG 
supported this study:Secretaría de Ciencia y Tecnología(SECyT-UNC 32720220400180CB)of Universidad Nacional de Córdoba and Agencia Nacional de Promoción Científica y Tecnológica(PICT 2016-1328 and PICT 2019-1545).
The evolutionary dynamics of the ecoregions of southern South America and the species that inhabit them have been poorly studied,and few biogeographic hypotheses have been proposed and tested.Quaternary climatic oscil...
关键词：Espinal GENETICS GLACIATIONS potential distribution Quaternary oscillations 
Multicomponent organic blend systems:A review of quaternary organic photovoltaics
《Carbon Energy》2024年第10期130-165,共36页Kekeli N'Konou Souk Y.Kim Nutifafa Y.Doumon 
the support of the research commission of the Catholic University of Lille and its Foundation;the IEMN laboratory for the financial support;support from the Materials Research Institute (MRI) and the Institute of Energy and the Environment (IEE) of the Pennsylvania State University。
Embedding a third and/or fourth component into a binary blend active layer of organic photovoltaics (OPVs) is a promising approach to achieve high-performance photovoltaic cells and modules. This multicomponent strate...
关键词：fullerene acceptors multicomponent blend nonfullerene acceptors organic photovoltaics quaternary organic photovoltaics (semi)transparent and flexible devices 
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