Results 1 to 10 of about 376 (139)

Evaluation of the ZWD/ZTD Values Derived from MERRA-2 Global Reanalysis Products Using GNSS Observations and Radiosonde Data [PDF]

open access: yesSensors, 2020
Tropospheric delay is one of the main errors affecting high-precision positioning and navigation and is a key parameter of water vapor detection in the Global Navigation Satellite System (GNSS).
Liangke Huang   +5 more
doaj   +5 more sources

Sensitivity of Shipborne GNSS Estimates to Processing Modeling Based on Simulated Dataset [PDF]

open access: yesSensors, 2023
The atmospheric water vapor is commonly monitored from ground Global Navigation Satellite System (GNSS) measurements, by retrieving the tropospheric delay under the Zenith Wet Delay (ZWD) component, linked to the water vapor content in the atmosphere. In
Aurélie Panetier   +2 more
doaj   +2 more sources

Mechanisms of Zhenwu decoction for the treatment of renal fibrosis at various stages: What is the role of Corynebacterium? [PDF]

open access: yesFrontiers in Microbiology, 2022
Many studies demonstrated that Zhenwu decoction (ZWD) is effective in the treatment of kidney fibrosis, whereas the mechanism remains unclear. In this work, a microbiomics-based strategy was used to investigate the mechanism of protective effects of ZWD ...
Lijing Du   +13 more
doaj   +2 more sources

Zhenwu decoction ameliorates adriamycin-induced nephrotic syndrome in rats via dual modulation of AVP-V2R-AQP2 and RAAS-MR-AQP3 pathways [PDF]

open access: yesRenal Failure
The core bioactive components of Zhenwu Decoction (ZWD)—utilized for managing kidney diseases—and the associated anti-nephrotic syndrome (NS) edema mechanism remain incompletely characterized. We assessed the potential mechanism of ZWD against adriamycin
Mengmeng Xu   +5 more
doaj   +2 more sources

Short-Term Forecast of Tropospheric Zenith Wet Delay Based on TimesNet [PDF]

open access: yesSensors
The tropospheric zenith wet delay (ZWD) serves as a pivotal parameter for atmospheric water vapour inversion. By converting it into precipitable water vapour, high-temporal-resolution atmospheric humidity monitoring becomes feasible, providing crucial ...
Xuan Zhao   +5 more
doaj   +2 more sources

Monitoring water vapor transport in near real-time with low-cost GNSS receiver network [PDF]

open access: yesScientific Reports
Water vapor plays a vital role in weather variations, making it essential to monitor atmospheric water vapor content for reliable weather forecasts.
Jizhong Wu   +3 more
doaj   +2 more sources

Prior Position- and ZWD-Constrained PPP for Instantaneous Convergence in Real-Time Kinematic Application [PDF]

open access: yesRemote Sensing, 2021
PPP using Kalman filter typically takes half an hour to achieve high positioning precision, which is required for small movements detection. Many dataset gaps due to temporary GPS receiver signal loss challenge the feasibility of PPP in GPS applications ...
Xu Tang   +2 more
doaj   +2 more sources

Zenith Wet Delay (ZWD) Seasonal Correlation with Rainfall in Cikapundung River Discharge, North Bandung Region, Indonesia [PDF]

open access: yesE3S Web of Conferences, 2019
In a GPS survey study, the biases produced by the ionosphere and troposphere layers are known as ionospheric biases and troposphere bias. The distance deviation due to the slowing travel time of GPS signals in troposphere is commonly referred to as ...
Kuntjoro Wedyanto   +4 more
doaj   +2 more sources

Performance of zero water discharge (ZWD) system with nitrifying bacteria Bacillus megaterium and microalgae Chaetoceros calcitrans components in super intensive pacific white shrimp Litopenaeus vannamei culture at low salinity

open access: yesJurnal Akuakultur Indonesia, 2018
This research aimed to obtain the performance of super intensive white shrimp rearing using zero water discharge (ZWD) system. This study consisted of four steps, (1) activation and cultivation of nitrifying bacteria, microalgae C.
Rahim Rahim   +2 more
doaj   +3 more sources

Kinematic Zenith Tropospheric Delay Estimation with GNSS PPP in Mountainous Areas [PDF]

open access: yesSensors, 2021
The use of global navigation satellite systems (GNSS) precise point positioning (PPP) to estimate zenith tropospheric delay (ZTD) profiles in kinematic vehicular mode in mountainous areas is investigated.
Paul Gratton   +3 more
doaj   +2 more sources

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