Results 101 to 110 of about 428,797 (300)

Global long-term trends in the total electron content [PDF]

open access: yesAnnales Geophysicae
Total electron content (TEC) is an important parameter for ionospheric dynamics, global navigation satellite system/Global Positioning System (GNSS/GPS) signal propagation and related applications of GNSS/GPS signals.
J. Urbář, J. Laštovička
doaj   +1 more source

Optimize out-of-core thermionic energy conversion for nuclear electric propulsion [PDF]

open access: yes
Current designs for out of core thermionic energy conversion (TEC) to power nuclear electric propulsion (NEP) were evaluated. Approaches to improve out of core TEC are emphasized and probabilities for success are indicated.
Morris, J. F.
core   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

open access: yesAdvanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen   +7 more
wiley   +1 more source

PEMANTAUAN ANOMALI TOTAL ELECTRON CONTENT (TEC) BERKAITAN DENGAN KEJADIAN GEMPABUMI DI SEKITAR WILAYAH JAWA TAHUN 2015

open access: yesSpektra: Jurnal Fisika dan Aplikasinya, 2016
Abstrak Penelitian tentang prekursor gempabumi yang terintegrasi melalui pengamatan parameter seismik, elektromagnetik, geokimia, geoatmosferik serta parameter ionosfer telah dilakukan untuk mendapatkan tanda-tanda awal sebelum gempabumi kuat di ...
Bambang Sunardi, Sulastri Sulastri
doaj   +1 more source

Traumatismo encefalocraneano (TEC)

open access: yesARS MEDICA Revista de Ciencias Médicas, 2017
Sin ...
openaire   +3 more sources

Effects of Ionospheric Asymmetry on Electron Density Standard Inversion Algorithm Applicable to Radio Occultation (RO) Data Using Best-suited Ionospheric Model [PDF]

open access: yes, 2013
The "Onion-peeling" algorithm is a very common technique used to invert Radio Occultation (RO) data in the ionosphere. Because of the implicit assumption of spherical symmetry for the electron density (Ne) distribution in the ionosphere, the standard ...
Kos, T.   +3 more
core  

Statistical framework for estimating GNSS bias

open access: yes, 2015
We present a statistical framework for estimating global navigation satellite system (GNSS) non-ionospheric differential time delay bias. The biases are estimated by examining differences of measured line integrated electron densities (TEC) that are ...
Coster, Anthea J.   +4 more
core   +2 more sources

Evolution of Materials and Device Stacks for HfO2‐Based Ferroelectric Memories

open access: yesAdvanced Materials Interfaces, EarlyView.
This review summarizes engineering strategies for HfO2 based ferroelectric memories with focus on FeCAP and FeFET structures. It describes how dopant design, stress effects, and interface engineering improve the bulk ferroelectric response. It further discusses how channel engineering supports reliable memory characteristics and scalable integration ...
Eunjin Kim, Jiyong Woo
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

Network-based Anomaly Detection in Waste Transportation Data with Limited Supervision

open access: yesApplied Network Science
Detecting anomalies in Waste transportation networks is vital for uncovering illegal or unsafe activities, that can have serious environmental and regulatory consequences. Identifying anomalies in such networks presents a significant challenge due to the
Nirbhaya Shaji   +6 more
doaj   +1 more source

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