Results 21 to 30 of about 140,705 (288)

Fragmentation of exotic oxygen isotopes [PDF]

, 2003
Abrasion-ablation models and the empirical EPAX parametrization of projectile fragmentation are described. Their cross section predictions are compared to recent data of the fragmentation of secondary beams of neutron-rich, unstable 19,20,21O isotopes at
Aumann, Thomas, Boretzky, K, Canto, LF, Carlson, BV, Cortina, D, Data-Pramanik, U, Elze, TW, Emling, Hans, Geissel, Hans, Grunschloss, A, Helariutta, K, Hellström, M., Hussein, MS, Ilievski, S, Jones, K, Khiem, L, Kratz, JV, Kulessa, R, Leistenschneider, A, Lubkiewicz, E, Münzenberg, G., Palit, R, Reiter, P, Scheidenberger, Christoph, Schmidt, KH, Simon, H, Sümmerer, K., Wajda, E, Walus, W   +28 more
core   +3 more sources

Adsorption separation of heavier isotope gases in subnanometer carbon pores

Nature Communications, 2021
Separation of isotopes of heavier gases than hydrogen or helium is essential for biomedical applications, but current methods are very energy and time consuming.
Sanjeev Kumar Ujjain, Abhishek Bagusetty, Yuki Matsuda, Hideki Tanaka, Preety Ahuja, Carla de Tomas, Motomu Sakai, Fernando Vallejos-Burgos, Ryusuke Futamura, Irene Suarez-Martinez, Masahiko Matsukata, Akio Kodama, Giovanni Garberoglio, Yury Gogotsi, J. Karl Johnson, Katsumi Kaneko   +15 more
doaj   +1 more source

Carbon and oxygen isotope variation and its implication for marine sequence: A case study of Ordovician in Tarim Basin

Petroleum Research, 2017
Carbon and oxygen isotopes of marine carbonate rocks or fossil shells could indicate global sea-level relative change. Generally, heavier carbon isotopes or lighter oxygen isotopes reflected rise of global sea-level relative changes, and vice versa.
Zongju Zhao, Jianguo Wang, Peixi Wang
doaj   +1 more source

Redistribution of hydrogen and oxygen isotopes in groundwater flow systems: From altitude effect to depth effect

Shuiwen dizhi gongcheng dizhi, 2023
The hydrogen and oxygen isotopes in precipitation have the altitude effect, and they participate in the groundwater circulation after the infiltration of precipitation.
Pengfei HAN, Xusheng WANG, Xiaowei JIANG, Li WAN   +3 more
doaj   +1 more source

The development of statistical downscaling methods for assessing the effects of climate change on the precipitation isotopes concentration

Journal of Water and Climate Change, 2021
In recent years, stable isotopes of the water molecule (oxygen-18 and deuterium) have become a useful tool for tracking the water cycle. The concentration of these tracers changes with variations of water molecules within the water cycle.
Sara Nazif, Maryam Mosaffa, Youssef Khalaj Amirhosseini   +2 more
doaj   +1 more source

Towards exotic nuclei via binary reaction mechanism [PDF]

, 1997
Assuming a binary reaction mechanism, the yield of isotopes near the heaviest $N=Z$ neutron-deficit nucleus $^{100}$Sn is studied with a microscopic transport model.
G. G. Adamian, G. G. Adamian, G. G. Adamian, G. G. Adamian, G. G. Adamian, G. G. Adamian, G. G. Adamian, H. Feldmeier, J. Randrup, J. Randrup, J. Toke, K. Kwiatkowski, K. Kwiatkowski, M. Lewitowicz, N. V. Antonenko, N. V. Antonenko, R. Schmidt, R. Schmidt, R. Schneider, V. S. Barashenkov, V. V. Volkov, W. U. Schröder   +21 more
core   +3 more sources

Seasonal Cyclicity in Trace Elements and Stable Isotopes of Modern Horse Enamel. [PDF]

PLoS ONE, 2016
The study of stable isotopes in fossil bioapatite has yielded useful results and has shown that bioapatites are able to faithfully record paleo-environmental and paleo-climatic parameters from archeological to geological timescales.
Niels J de Winter, Christophe Snoeck, Philippe Claeys   +2 more
doaj   +1 more source

Low-lying continuum states of drip-line Oxygen isotopes [PDF]

, 2015
Low-lying continuum states of exotic oxygen isotopes are studied, by introducing the Continuum-Coupled Shell Model (CCSM) characterized by an infinite wall placed very far and by an interaction for continuum coupling constructed in a close relation to ...
Fujimoto, Rintaro, Otsuka, Takaharu, Tsukiyama, Koshiroh   +2 more
core   +1 more source

Evolution of the pygmy dipole resonance in nuclei with neutron excess [PDF]

, 2001
The electric dipole excitation of various nuclei is calculated with a Random Phase Approximation phenomenological approach. The evolution of the strength distribution in various groups of isotopes, oxygen, calcium, zirconium and tin, is studied.
Co', G., De Donno, V., Maieron, C., Anguiano, M., Lallena, A. M.   +4 more
core   +3 more sources

Isotopic Fingerprinting: A Promising Tool for Coffee Authenticity Checks

Proceedings, 2023
Almost every physical or chemical process in nature favors certain light stable isotopes over others, and thereby leaves an isotopic “fingerprint” on the substances involved.
Johannes Wintel, Corina Knipper, Mila Spross, Ronny Friedrich, Steffen Schwarz   +4 more
doaj   +1 more source