Results 11 to 20 of about 506 (156)
Advanced Temperature Design for Dynamic Performance Enhancement of PEMFCs Under High Current Density (HCD). [PDF]
Adv Sci (Weinh)This study presents an innovative temperature difference (TD) design with an in‐plane gradient to optimize cooling channels in proton exchange membrane fuel cells (PEMFCs) under high current density (HCD) loading. The positive temperature difference (PTD) design improves dynamic response by enhancing hydration upstream and mitigating flooding ...
Cai F, Cai S, Tu Z, Chan SH.
europepmc +2 more sources
Geosystems and Geoenvironment, 2023 Recent studies on the application of Zenith Tropospheric Delay (ZTD) in meteorology and geodesy have shown improved accuracy with the use of locally estimated ZTD compared to Global ZTD.
Ifechukwu Ugochukwu Nzelibe +1 more
doaj +1 more source
A Novel Method for Monitoring Tropical Cyclones’ Movement Using GNSS Zenith Tropospheric Delay
Remote Sensing, 2023 Precipitable water vapor (PWV) is an important meteorological factor for predicting extreme weather events such as tropical cyclones, which can be obtained from zenith tropospheric delay (ZTD) by using a conversion.
Dajun Lian +8 more
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Quality control of SIRGAS ZTD products
Journal of Geodetic Science, 2022 AbstractThe SIRGAS-CON network currently has more than 450 continuous GNSS stations, and it is used for geodetic purposes. In atmospheric studies, it is used for ionospheric monitoring and for the estimation of zenith tropospheric delays (ZTDs). From the Neutral Atmosphere Analysis Center of SIRGAS, Centro de Ingeniería Mendoza Argentina, the final ...
María Virginia Mackern +3 more
openaire +3 more sources
Geoid, 2021 Global Navigation Satellite System (GNSS) semakin dikembangkan sebagai sistem penginderaan jauh atmosfer, salah satunya melalui perhitungan Zenith Tropospheric Delay (ZTD).
Norma Aji Cemara Mannani +1 more
doaj +1 more source
GNSS meteorology and tropospheric parameteres investigation [PDF]
Geodetski Glasnik, 2015 Troposphere plays crucial role for geodetic comunity, which can primarly be seen in its influence on GNSS observations. At the same time, troposhpere is the place where almost all hidrometeorological phenomena that effect our everyday life occure ...
Alma Tabaković +2 more
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High Conversion Efficiency in Intrinsic High Power-Density Mg<sub>2</sub>Sn-GeTe Thermoelectric Generator. [PDF]
Adv Sci (Weinh)First Mg2Sn–GeTe thermoelectric generator achieves 9% efficiency by strategically modulating power factor–thermal conductivity interplay in intrinsically high‐power‐density system. Abstract Thermoelectric generators (TEGs) offer a sustainable solution for thermal energy harvesting, where maximizing energy output necessitates achieving both high power ...
Wu X +6 more
europepmc +2 more sources
A New Four-Layer Inverse Scale Height Grid Model of China for Zenith Tropospheric Delay Correction
IEEE Access, 2020 To reduce the convergence time in the real-time precise point positioning (PPP), the zenith tropospheric delay (ZTD) needs to be modeled with high accuracy and sent to the users to be introduced as a priori value. Because of the height difference between
Shaotian Zhang +6 more
doaj +1 more source
Remote Sensing, 2022 Global navigation satellite system (GNSS) signals are affected by refraction when traveling through the troposphere, which result in tropospheric delay. Generally, the tropospheric delay is estimated as an unknown parameter in GNSS data processing.
Huan Zhang +6 more
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Evaluation of Zenith Tropospheric Delay Derived from ERA5 Data over China Using GNSS Observations
Remote Sensing, 2020 The latest reanalysis of the European Center for Medium-Range Weather Forecasts (ECMWF), ERA5, can provide atmospheric data for calculating Zenith Tropospheric Delay (ZTD) with hourly temporal resolution, which is a key factor in Global Navigation ...
Chunhua Jiang +4 more
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