Results 61 to 70 of about 3,808,217 (269)

SWIFF : space weather integrated forecasting framework [PDF]

, 2013
This research has received funding from the European Commission’s FP7 Program with the grant agreement SWIFF (Project No. 2633430, swiff.eu). The KU Leuven simulations were conducted on the computational resources provided by the PRACE Tier-0 Project No.
Viviane Pierrard, Bemporad, Alessandro, Parnell, Clare Elizabeth, O. Sebek, HENRI, PIERRE REMI ANTOINE, Mackay, Duncan H., Ondřej Šebek, Clare E. Parnell, Nordlund, Åke, Trávníček, Pavel M., Bemporad, A., Åke Nordlund, Mackay, Duncan Hendry, R. Keppens, A. Restante, Alessandro Bemporad, Pegoraro, Francesco, Parnell, C., V. Pierrard, Pierrard, Viviane, Markidis, Stefano,, D. Mackay, Keppens, R., Restante, A., Mackay, D., Faganello, Matteo, Stefano Markidis, Jacob Trier Frederiksen, Mackay, D.H., A. Bemporad, Faganello, M., Rony Keppens, Kris Borremans, Olshevsky, Vyacheslav, Pegoraro, F., Susino, R., M. Faganello V. Olshevsky, Parnell, Clare E., Borremans, K., K. Borremans, S. Poedts, Parnell, C.E., C. Parnell, Frederiksen, J., Lapenta, G., Califano, Francesco, S. Markidis, Francesco Califano, Restante, A.L., Borremans, Kris, Giovanni Lapenta, Pierrard, V., Keppens, Rony, Šebek, Ondřej, Trier Frederiksen, Jacob, Susino, Roberto, Lapenta, Giovanni, Henri, P., Califano, F., J. Frederiksen, Pavel M. Trávníček, Travnıcek, P., Pierre Henri, Restante, Anna Lisa, Markidis, S., Henri, Pierre, Stefaan Poedts, Vyacheslav Olshevsky, Markidis, Stefano, Duncan H. Mackay, Poedts, S., R. Susino, Frederiksen, Jacob Trier, Nordlund, A., G. Lapenta, Sebek, O., Anna Lisa Restante, Trávníček, P.M., Roberto Susino, Poedts, Stefaan, Olshevsky, V., A. Nordlund, Matteo Faganello, Francesco Pegoraro, Trávníček, Pavel M   +84 more
core   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

Advanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Meteorological applications of precipitable water vapor measurements retrieved by the national GNSS network of China

Geodesy and Geodynamics, 2015
In this study, the Global Navigation Satellite System (GNSS) network of China is discussed, which can be used to monitor atmospheric precipitable water vapor (PWV).
Hong Liang, Yunchang Cao, Xiaomin Wan, Zhifang Xu, Haishen Wang, Heng Hu   +5 more
doaj   +1 more source

Atom Probe Tomography as an Emerging Tool for Understanding Defect‑Driven Mechanisms in HfO2‑Based Ferroelectrics

Advanced Functional Materials, EarlyView.
This Perspective highlights atom probe tomography as a powerful tool for understanding the atomic‐scale defect chemistry in HfO2‐based ferroelectrics. 3D mapping of dopants, point defects, and interface chemistry can provide new insight into defect‐driven mechanisms underpinning the ferroelectricity in the system and guide the design of more reliable ...
Kasper Hunnestad, Catherine Dubourdieu, Alexei Gruverman, Dennis Meier   +3 more
wiley   +1 more source

Noise‐Limited Bit Precision in Ferroelectric Synaptic Transistors for High‐Resolution Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Low‐frequency noise spectroscopy defines the resolvable conductance states of synaptic FeFETs by coupling read‐current fluctuation with usable dynamic range. The resulting noise‐limited bit precision establishes a universal, device‐agnostic reliability metric beyond the memory window, enabling quantitative benchmarking and rational design of high ...
Jaehong Park, Yeonseop Shin, Changhyeon Han, Sangwoo Kim, Eunchan Park, Youngchan Cho, Jaehong Min, Hyunjun Ahn, Jaekyoung Park, Cheol‐Woong Yang, Jangsaeng Kim, Daewoong Kwon, Wonjun Shin   +12 more
wiley   +1 more source

Spectral Representation of Time and Physical Parameters in Numerical Weather Prediction

, 2018
Numerical weather prediction (NWP) is a difficult task in chaotic dynamical regimes because of the strong sensitivity to initial conditions and physical parameters. As a result, high numerical accuracy is usually necessary.
Lindvall, Kristoffer,, Jan Scheffel, Kristoffer Lindvall, Scheffel, Jan,   +3 more
core   +1 more source

Memristive‐Gated RC‐Delay Synaptic Transistors for Time‐Encoded Analog in‐Memory Computing

Advanced Functional Materials, EarlyView.
A Memristive‐Gated Transistor for Time‐Encoded Analog In‐Memory Computing — By exploiting the RC delay of a self‐rectifying interface‐type memristor, nonlinear I–V distortion is structurally bypassed, enabling 3‐bit nonvolatile memory, spike‐timing‐based analog encoding, and hardware‐calibrated reservoir‐computing validation within a unified device ...
Yun‐Seo Shin, Eunjoo Yoo, Ki‐Hoon Son, Hyun‐Sik Kim, Dae‐Hee Han, Jeong Hyeon Son, Seung Hwan Lee, Hong‐Sub Lee   +7 more
wiley   +1 more source

Cold climates, complex hydrology: can a land surface model accurately simulate deep percolation? [PDF]

Hydrology and Earth System Sciences
Cold regions present unique challenges for land surface models in simulating deep percolation or potential groundwater recharge. Previous model evaluation efforts often overlooked these regions and did not account for various sources of uncertainties ...
A. Amani, M.-A. Boucher, A. R. Cabral, V. Vionnet, É. Gaborit   +4 more
doaj   +1 more source

Energy and Numerical Weather Prediction [PDF]

Tellus A: Dynamic Meteorology and Oceanography, 1960
Since the study of energy transformations and the numerical integration of simplifiied equations are sometimes used as alternative approaches to the same physical problem, it is often desirable that the simplified equations conserve total energy under reversible adiabatic processes.
openaire   +1 more source