Results 91 to 100 of about 3,816 (192)

Electromagnetic ion cyclotron waves in the helium branch induced by multiple electromagnetic ion cyclotron triggered emissions [PDF]

Geophysical Research Letters, 2011
Masafumi Shoji, Yoshiharu Omura, Benjamin Grison, Jolene Pickett, Iannis Dandouras, Mark Engebretson   +5 more
openaire   +1 more source

Investigation of spatial distribution characteristics of emission intensity in detachment on the divertor simulator TPDsheet-ICR

Nuclear Materials and Energy
For the first time, we have revealed the spatial structure of a detached plasma with electron–ion recombination (EIR) and molecular-activated recombination (MAR) in response to changes in ion temperature (Ti) and gas pressure.
A. Tonegawa, N. Okada, K. Miura, H. Natsume, K.N. Sato, K. Hoshino, Y. Hayashi, S. Masuzaki, S. Yamoto   +8 more
doaj   +1 more source

Gyrokinetic profile prediction and validation of a negative triangularity plasma in ASDEX Upgrade

Nuclear Fusion
In this work, gyrokinetic simulations are performed with the CGYRO code (Candy et al 2016 J. Comput. Phys. 324 73–93) for a negative triangularity H-mode plasma in ASDEX Upgrade, and compared with experimental measurements.
R. Bielajew, B. Vanovac, N.T. Howard, P. Rodriguez-Fernandez, L. Aucone, G.D. Conway, T. Happel, C. Holland, P. Mantica, J. Schellpfeffer, C. Yoo, A.E. White, the EUROfusion WPTE Team, the ASDEX Upgrade Team   +13 more
doaj   +1 more source

Lake dissolved organic matters seasonal variations is a main driver of N2O emission: In molecular insights by using FT-ICR MS

Water Research X
Anthropogenic activities have introduced substantial quantities of carbon and nitrogen into aquatic system, which are hotspots for nitrous oxide emissions and play multiple roles in the global biogeochemical cycle. We characterized the seasonal variation
Zezheng Wang, Lu Li, Chengchao Liao, Min Deng, Yeerken Senbati, Yongxia Huang, Kang Song   +6 more
doaj   +1 more source

Velocity-space tomography of MeV-range fast-ion distributions in JET using wave–particle interaction priors

Nuclear Fusion
The fast-ion distribution function in fusion plasmas can only be measured indirectly by solving an ill-posed inverse problem. The inversion being ill-posed necessitates regularisation of the problem to ensure that the reconstruction of the fast-ion ...
M. Rud, Y. Dong, L.-G. Eriksson, J. Eriksson, P.C. Hansen, O. Hyvärinen, H. Järleblad, Ye.O. Kazakov, D. Moseev, M. Nocente, B.C.G. Reman, A. Snicker, A. Valentini, M. Salewski, JET Contributors   +14 more
doaj   +1 more source

Molecular composition of dissolved organic matter determines lower-than-expected CH4 production in Mollisols under warming and atmospheric CO2 enrichment

Geoderma
CH4 emissions from agricultural activities in response to anticipated climate changes, such as elevated temperature (warming) and elevated CO2 levels (eCO2), remain highly uncertain. In this study, warming, eCO2, and their combined effects were simulated
Jian Liu, Meng Zhou, Jian Jin, Lifeng Zhou, Run Dang, Eric Lichtfouse, Chuancheng Fu, Yang Tan, Jiafeng Yu, Peng Zhang, Han Lyu, Zhangliu Du, Leilei Xiao   +12 more
doaj   +1 more source

Tungsten impurity reduction by ICRH in a high power injection and high performance H-mode discharge on EAST

Nuclear Fusion
The decrease in tungsten (W) content with the higher ion cyclotron resonance heating (ICRH) power is observed and explained for the first time in a high power injection ( P _inj > 10 MW), high performance ( β _N ∼ 2, β _P ∼ 2.8, n _e / n _GW ∼ 80%, f _BS
Zhen Zhou, Shengyu Shi, Ling Zhang, Tao Zhang, Xiaohe Wu, Yunxin Cheng, Wenmin Zhang, Chaowei Mai, Shengyu Fu, Yifei Jin, Xiang Jian, Kaixuan Ye, Lin Yu, Ziqiang Zhou, Jiuyang Ma, Shuqi Yang, Kangning Geng, Gongshun Li, Jia Huang, Fei Wen, Yunfeng Liang, Xiang Gao   +21 more
doaj   +1 more source

Electromagnetic ion cyclotron waves in the helium branch induced by multiple electromagnetic ion cyclotron triggered emissions

Electromagnetic ion cyclotron waves in the helium branch induced by multiple electromagnetic ion cyclotron triggered emissions
Electromagnetic ion cyclotron (EMIC) triggered emissions with rising tones between the H+ and He+ cyclotron frequencies were found in the inner magnetosphere by the recent Cluster observations. Another type of EMIC wave with a constant frequency is occasionally observed below the He+ cyclotron frequency after the multiple EMIC triggered emissions.
openaire  

Plasma Wave-particle Acceleration as the Origin of the Galactic Gamma-Ray Bubbles

The Astrophysical Journal
The “Fermi bubbles” are two giant gamma-ray emitting configurations in the form of bubbles that extend above and below the Galactic plane. They are characterized by a smooth surface, sharp edges, and an almost flat intensity distribution.
A. Cardinali, B. Coppi, M. Tavani, V. Vittorini   +3 more
doaj   +1 more source

Fault Detection Approach of Cyclotron Ion Sources Based on KPCA-ISSA-SVM. [PDF]

Sensors (Basel)
Li Y, Liu Y, Guan F, Zhang H, Hou S, Huang P, Nong Z.   +6 more
europepmc   +1 more source