Results 61 to 70 of about 510 (175)
A structurally integrated multiscale hierarchical metamaterial composite (MHMC), inspired by the synergistic architecture of reinforced concrete, achieves simultaneous enhancement of thermal, electromagnetic, and mechanical functionalities. By combining a carbon black‐based mechanical metamaterial with a porosity‐graded cellulose acetate aerogel, this ...
Jeongwoo Lee +9 more
wiley +1 more source
A New Global ZTD Forecast Model Based on Improved LSTM Neural Network
Zenith tropospheric delay (ZTD), consisting of zenith hydrostatic delay (ZHD) and zenith wet delay (ZWD), is a significant contributor to errors in precise positioning using the global navigation satellite system (GNSS) precise point positioning (PPP ...
Lin He +7 more
doaj +1 more source
Global Navigation Satellite System (GNSS) signals arrive at the Earth in a nonlinear and slightly curved way due to the refraction effect caused by the troposphere. The troposphere delay of the GNSS signal consists of hydrostatic and wet parts.
Mahmut Oguz Selbesoglu
doaj +1 more source
Improving GNSS PPP-RTK through global forecast system zenith wet delay augmentation
AbstractThe precise point positioning real-time kinematic (PPP-RTK) is a high-precision global navigation satellite system (GNSS) positioning technique that combines the advantages of wide-area coverage in precise point positioning (PPP) and of rapid convergence in real-time kinematic (RTK).
Gao, R, Liu, Z, Odolinski, R, Zhang, B
openaire +2 more sources
We exploit the Field Experiment on Sub‐mesoscale Spatio‐Temporal Variability in Lindenberg (FESSTVaL) to compare the performance of an NWP model at sub‐km resolutions with a traditional LES model. Focusing on clear‐sky ABL turbulence (June 14), shallow convective clouds and surface radiation (June 27), and deep convective cold pools (June 29), we find ...
Mirjana Sakradzija +8 more
wiley +1 more source
Abstract We have addressed convective self‐aggregation (CSA) in steady and oscillating sea surface temperature (SST) and solar radiation (SOLIN) cloud‐resolving model simulations in a non‐rotating radiative‐convective equilibrium (RCE) framework. Our experiment designs are motivated by land‐ocean heterogeneity of atmospheric convection.
Bidyut Bikash Goswami +2 more
wiley +1 more source
Atmospheric Water Vapor and Precipitation Coupling in Southwestern South America
Abstract Most studies linking atmospheric water vapor and precipitation emphasize short records, tropical regions, or the Northern Hemisphere. Long‐term variability of water vapor and its coupling with precipitation remain poorly understood across strong latitudinal and climatic gradients.
Raúl Valenzuela +2 more
wiley +1 more source
A Modern Roman‐Inspired Concrete with Daytime Radiative Cooling Capacity
Coolcrete, inspired by ancient Roman concrete, is a new cementitious material with photonic properties enabling passive daytime radiative cooling. Made from quicklime and zeolites, it reduces cooling energy demand, lowers CO2 emissions, and may eliminate urban heat islands.
Jorge S. Dolado +11 more
wiley +1 more source
In this paper, we assess, in the framework of Global Navigation Satellite System (GNSS) meteorology, the accuracy of GNSS propagation delays corresponding to the Saastamoinen zenith hydrostatic delay (ZHD) model and the Vienna Mapping function VMF1/VMF3 (
Peng Feng +4 more
doaj +1 more source
ABSTRACT Stinging catfish (Heteropneustes fossilis) is a commercially important farmed freshwater species in Bangladesh; however, due to various challenges in natural reproduction, hatchery‐based seed supply is crucial. This longitudinal study (2022–2024) in an earthen pond assessed its reproductive performance through the gonadosomatic index (GSI ...
Balaram Mahalder +6 more
wiley +1 more source

