Results 31 to 40 of about 390,411 (306)

Identifying water mass depletion in northern Iraq observed by GRACE [PDF]

Hydrology and Earth System Sciences, 2015
Observations acquired by Gravity Recovery And Climate Experiment (GRACE) mission indicate a mass loss of 146 ± 6 mm equivalent water height (EWH) in northern Iraq between 2007 and 2009.
G. Mulder, T. N. Olsthoorn, D. A. M. A. Al-Manmi, E. J. O. Schrama, E. H. Smidt   +4 more
doaj   +1 more source

Climate Change, Land Use/Land Cover Change, and Population Growth as Drivers of Groundwater Depletion in the Central Valleys, Oaxaca, Mexico

Remote Sensing, 2019
Groundwater depletion is an important problem driven by population growth, land use and land cover (LULC) change, climate change, and other factors. Groundwater depletion generates water stress and encourages unstainable resource use.
Edwin Antonio Ojeda Olivares, Sadoth Sandoval Torres, Salvador Isidro Belmonte Jiménez, José Oscar Campos Enríquez, Francesco Zignol, Yunuen Reygadas, John P. Tiefenbacher   +6 more
doaj   +1 more source

Potential-Induced Degradation (PID): Introduction of a novel test approach and explanation of increased depletion region recombination

, 2022
S.834-840In recent years, a detrimental degradation mechanism of solar cells in large photovoltaic fields called potential-induced degradation (PID) has been intensively investigated and discussed.
Breitenstein, O., Hagendorf, C., Lausch, D., Graff, A., Bagdahn, J., Naumann, V., Bauer, J.   +6 more
core   +1 more source

AC Impedance Compared to DC Characterization for Source-Drain Resistance in Junctionless Gate-All-Around MOSFETs

IEEE Journal of the Electron Devices Society
This study investigates the frequency-dependent AC source-drain impedance (ZDS) in p-type junctionless gate-all-around (JLGAA) MOSFETs, and compares it to the DC source-drain resistance (RDS) under various biasing and stress conditions.
Hung-Hsi Chen, Ching-Lun Wang, Yao-Jen Lee, Wen-Teng Chang   +3 more
doaj   +1 more source

Analysis and Modeling of Intrinsic Capacitance in Enhancement Mode GaN HEMT

IEEE Journal of the Electron Devices Society
This paper analyzes the intrinsic capacitance of enhancement-mode (e-mode) Gallium Nitridebased High Electron Mobility Transistor (GaN HEMTs). The intrinsic capacitance was measured using $C_{i s s}$ (input capacitance), $C_{o s s}$ (output ...
Taeyoung Cho, Jesun Park, Sungyeop Jung, Myounggon Kang   +3 more
doaj   +1 more source

TCAD Analysis of the Four-Terminal Poly-Si TFTs on Suppression Mechanisms of the DC and AC Hot-Carrier Degradation

IEEE Journal of the Electron Devices Society, 2019
Four-terminal poly-Si thin-film transistors (TFTs), with a counter-doped body terminal connected to the floating channel, can suppress both dc and dynamic hot-carrier (HC) degradation of TFTs.
Ting Gao, Mingxiang Wang, Huaisheng Wang, Dongli Zhang   +3 more
doaj   +1 more source

The Morphology of Equatorial Plasma Bubbles – a review [PDF]

Journal of Astronomy and Space Sciences, 2015
Plasma bubbles that occur in the equatorial F-region make up one of the most distinguishing phenomena in the ionosphere. Bubbles represent plasma depletions with respect to the background ionosphere, and are the major source of electron density ...
Hyosub Kil
doaj   +1 more source

Practical methods for GPU-based whole-core Monte Carlo depletion calculation

Nuclear Engineering and Technology, 2023
Several practical methods for accelerating the depletion calculation in a GPU-based Monte Carlo (MC) code PRAGMA are presented including the multilevel spectral collapse method and the vectorized Chebyshev rational approximation method (CRAM).
Kyung Min Kim, Namjae Choi, Han Gyu Lee, Han Gyu Joo   +3 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Photovoltaic Performance of Pin Junction Nanocone Array Solar Cells with Enhanced Effective Optical Absorption

Nanoscale Research Letters, 2018
The photovoltaic performance of axial and radial pin junction GaAs nanocone array solar cells is investigated. Compared with the cylinder nanowire arrays, the nanocone arrays not only improve the whole optical absorption but more importantly enhance the ...
Jinnan Zhang, Lingmei Ai, Xin Yan, Yao Wu, Wei Wei, Mingqian Zhang, Xia Zhang   +6 more
doaj   +1 more source