Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Weixi Yi"'
Autor:
Zhiqiang Yu, Chengde Shen, Zhongli Sha, Weidong Sun, Jiasong Fang, Lisheng He, Sanyuan Zhu, Weixi Yi, Xiaomei Xu, Mei Mi, Ning Wang, Ellen R. M. Druffel, Ping Ding, Kexin Liu
Publikováno v:
Geophysical Research Letters. 46:5413-5419
The food source of hadal endemic fauna provides an insight into the carbon cycle in trenches and a biological adaptation to the impoverished and harsh trench environment. Here, we present the first Delta C-14 results of hadal amphipods from three tre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::293b5ff99914f5bf4ae232792b53f1c5
https://doi.org/10.1029/2018gl081514
https://doi.org/10.1029/2018gl081514
Autor:
Weixi Yi, Chengde Shen, Xingfang Ding, Weidong Sun, Dongpo Fu, Ning Wang, Ping Ding, Kexin Liu
Publikováno v:
Radiocarbon. 59:1035-1046
Due to an increasing number of nuclear reactors in operation, the radiocarbon (14C) released from nuclear power plants (NPPs) has become an important anthropogenic source of 14C. The examination of seasonal Δ14C and monthly Sr/Ca, Mg/Ca variations i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90379a0f784eec275570fc278ccae2b3
https://doi.org/10.1017/rdc.2017.43
https://doi.org/10.1017/rdc.2017.43
Publikováno v:
Radiocarbon. 59:705-711
The sealed tube Zn reduction method has been applied for small-mass samples ranging from 15 to 100 μg carbon preparation for accelerator mass spectrometry (AMS) radiocarbon (14C) measurements at the AMS-14C Preparation Lab in Guangzhou Institute of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc9cbfe13436907b806e4488a2f783f3
https://doi.org/10.1017/rdc.2017.38
https://doi.org/10.1017/rdc.2017.38
Autor:
Yi Liu, Chengde Shen, Xingfang Ding, Weixi Yi, Ping Ding, Kexin Liu, Weiguo Liu, Ning Wang, Dongpo Fu
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 361:659-664
A pre-heating method that improves the background and precision of 14 C dating significantly was applied for fossil coral dating with high resolution in our lab in Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (GIGCAS). The reactio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64816d8d17f0b3b766f45a50a5609f8b
https://doi.org/10.1016/j.nimb.2015.06.032
https://doi.org/10.1016/j.nimb.2015.06.032
Publikováno v:
Radiocarbon. 55:1790-1800
The concentrations of 10Be and 14C and values of δ13C in samples collected during a major dust storm in Beijing on 16–17 April 2006 were studied. The 10Be concentrations ranged from 1.69 × 108 to 2.07 × 108 atom/g, 14C ages for black carbon (BC)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c853766d2ee20419476a94675bc5ee35
https://doi.org/10.1017/s0033822200048694
https://doi.org/10.1017/s0033822200048694
Publikováno v:
Radiocarbon. 55:791-803
From October 2010 to November 2011, the urban atmospheric CO2 concentration in Guangzhou ranged from 550 to 460 ppm, with mean monthly concentration fluctuating between 530 and 470 ppm. A lower concentration was observed in summer and autumn, while a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7bb01e430fef3d814e608b29a430545
https://doi.org/10.1017/s0033822200057957
https://doi.org/10.1017/s0033822200057957
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 294:627-630
Milu (Elaphurus davidianus, Pere David’s deer) is one of the few species of large mammals that became extinct in the wild, but survived domestically. A good understanding of expansion and habitat is required if the reintroduction of Milu into the w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ba7f889e6f2850df9a883575ff3bb99
https://doi.org/10.1016/j.nimb.2012.08.044
https://doi.org/10.1016/j.nimb.2012.08.044
Publikováno v:
Radiocarbon. 55:1665-1674
Mangrove ecosystems are highly productive and play an important role in tropical and global coastal carbon (C) budgets. However, sedimentary organic carbon (SOC) storage and turnover in mangrove forests are still poorly understood. Based on C isotopi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87b7afebbe34bbad33ea1525d32aaf16
https://doi.org/10.1017/s003382220004858x
https://doi.org/10.1017/s003382220004858x
Publikováno v:
Chinese Science Bulletin. 55:2548-2556
Carbon isotopic compositions of soil CO2 in rainy season (July) from two natural soil profiles (DHLS & DHS) in the monsoon evergreen broadleaf forest in the Dinghushan Biosphere Reservoir (DBR), South China, are presented. Turnover and origins of soi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a10947d9db1dfcd3ec2bd78212094b0d
https://doi.org/10.1007/s11434-010-3072-z
https://doi.org/10.1007/s11434-010-3072-z
Autor:
Chengde Shen, Xiuguo Wei, Weixi Yi, Ningli Li, Yoseph Yechieli, Ning Wang, Ping Ding, Kexin Liu
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 268:1094-1097
Radiocarbon can serve as a powerful tool for identifying sources of organic carbon and evaluating the erosion intensity in river drainage basins. In this paper we present 14C-AMS measurements of particulate organic carbon (POC) collected from the thr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c369459002e961df90a1ba54c294c9c
https://doi.org/10.1016/j.nimb.2009.10.107
https://doi.org/10.1016/j.nimb.2009.10.107