Results 101 to 110 of about 950,858 (353)

Hydrogeochemical characteristics of classical karst regions in Slovenia

Carsologica Sinica
Groundwater plays an important role in supplying drinking water, as well as supporting industrial and agricultural activities worldwide, especially in karst regions.
Ying MIAO, Cheng ZHANG, Prelovsek Mitja, Qiong XIAO   +3 more
doaj   +1 more source

Direct radiocarbon dating and stable isotopes of the neandertal femur from Les Rochers-de-Villeneuve (Lussac-les-Châteaux, Vienne)

Bulletins et Mémoires de la Société d’Anthropologie de Paris, 2006
Direct radiocarbon dating of the Neandertal femoral diaphysis from the Rochers-de-Villeneuve (Lussac-les-Châteaux, Vienne) has yielded an age of 45,200 ± 1,100 14C years B.P. (OxA-15257) [48,455 ± 1,878 cal. years B.P.], and stable isotope values of δ13C
Cédric Beauval, François Lacrampe-Cuyaubère, Bruno Maureille, Erik Trinkaus   +3 more
doaj   +1 more source

Spatial and seasonal variability of the carbon isotopic signature of Daphnia and their ephippia in four French lakes: Implications for the study of carbon transfers in lake food webs [PDF]

, 2022
Valentin Essert, Hélène Masclaux, Valérie Verneaux, Émilie Lyautey, David Étienne, Vincent Tardy, Laurent Millet   +6 more
openalex   +1 more source

Harmonizing the Pyrene and Ether Groups in Covalent Triazine Polymers for Highly Effective H2O2 Photosynthesis via One‐Step Two‐Electron Oxygen Reduction

Advanced Functional Materials, EarlyView.
The pyrene and ether groups are incorporated into the covalent triazine polymer (CTP) structure. The synergistic effect of the two functional groups endows CTP with better electron transfer, light absorption, and oxygen activation properties. An impressive apparent quantum yield (13.2% @420 nm) and a remarkable solar‐to‐chemical conversion efficiency ...
Chong Wang, Jinliang Lv, Yichun Lu, Hanfeng Ye, Xuan Zhang, Leonardo Cancellara, Nadezda Tarakina, Jiande Lin, Xin Gao, Oleksandr Savateev, Jiajia Cheng   +10 more
wiley   +1 more source

Oxygen isotope composition of the primitive Achondrites [PDF]

, 2007
Primitive achondrites provide a record of the earliest stages of asteroidal melting. A detailed study of their oxygen isotope variation shows that these meteorites retain significant levels of primary oxygen isotope ...
Benedix, G.K., Franchi, I.A., Gibson, J.M., Greenwood, R.C.   +3 more
core  

Multidimensional trophic niche revealed by complementary approaches: Gut content, digestive enzymes, fatty acids and stable isotopes in Collembola

, 2021
Anton Potapov, Melanie M. Pollierer, Sandrine Salmon, Vladimír Šustr, Ting‐Wen Chen   +4 more
openalex   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

Advanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana, Shubhrasish Mukherjee, Dmitrii Litvinov, Magdalena Grzeszczyk, Sergey Grebenchuk, Makars Šiškins, Virgil Gavriliuc, Yihang Ouyang, Changyi Chen, Yuxuan Ye, Meng Yiming, Maciej Koperski   +11 more
wiley   +1 more source

Research Progress in AMS Measurement of Pu Isotopes

Journal of Isotopes, 2021
Actinides transuranic element Pu, mainly comes from artificial nuclear activities and now widely found in nature, has an important research and application value in multiple basic research and application fields.
GONG Jie;HE Ming;ZHAO Qingzhang;PANG Yijun;HU Pan;ZHANG Wenhui;ZHNG Yuxuan;WU Shaoyong
doaj  

Developmentand Application of Accelerator Isotopes in China

Journal of Isotopes, 2015
Compared with the isotopes generated by nuclear reactor, the isotopes prepared by accelerator always show high specific activity and short half-life period.
YANG Yuan-you, LI Fei-ze, LIAO Jia-li, LIU Ning   +3 more
doaj   +1 more source

A Theory of Ferroelectric Phase Transition in SrTiO$_3$ induced by Isotope Replacement

, 2003
A theory to describe the dielectric anomalies and the ferroelectric phase transition induced by oxygen isotope replacement in SrTiO$_3$ is developed. The proposed model gives consistent explanation between apparently contradictory experimental results on
E.K.H. Salje, H.G. Evertz, J.H. Barrett, K.A. Muller, M. Itoh, M. Itoh, N. Kawashima, Norikazu Todoroki, O. Koseki, P.G. de Gennes, R. Blume, R. Cowley, R. Morf, R. Oppermann, R. Wang, R. Wang, S.A. Prosandeev, Seiji Miyashita, T. Hasegawa, T. Schneider, Y. Yamada, Yasusada Yamada   +21 more
core   +1 more source