Results 81 to 90 of about 2,117 (181)

Sorption and Transport Behaviour of Hydrophobic Organic Compounds in Soils and Sediments of Bangladesh and Their Impact on Groundwater Pollution : Laboratory Investigations and Model Simulations [PDF]

open access: yes, 2010
*** Zugleich als Dissertation an der Univ. Tübingen erschienen, 2002 *** This thesis focuses on the elucidation of the sorption and related transport processes controlling the fate of hydrophobic organic compounds (HOCs) (contaminants and pesticide) in ...
Rahman, Mohammed Mokhlesur
core  

A map of cell type-specific auxin responses [PDF]

open access: yes, 2013
In plants, changes in local auxin concentrations can trigger a range of developmental processes as distinct tissues respond differently to the same auxin stimulus. However, little is known about how auxin is interpreted by individual cell types.
Bastiaan O R Bargmann   +12 more
core   +6 more sources

Exploring Two‐Dimensional and Three‐Dimensional Propagation of Large‐Scale Traveling Ionospheric Disturbances During the May 2024 Geomagnetic Storm Main Phase

open access: yesSpace Weather, Volume 23, Issue 10, October 2025.
Abstract During the main phase of the May 2024 super geomagnetic storm, we investigated large‐scale traveling ionospheric disturbances (LSTID) using data from densely distributed global GNSS receivers. From both two‐dimensional and three‐dimensional (3D) perspectives, we analyzed LSTID propagation characteristics over North America, European, and ...
Ting Zhang   +4 more
wiley   +1 more source

PPP models and performances from single- to quad-frequency BDS observations

open access: yesSatellite Navigation, 2020
Nowadays, China BeiDou Navigation Satellite System (BDS) has been developed well and provided global services with highly precise positioning, navigation and timing (PNT) as well as unique short-message communication, particularly global system (BDS-3 ...
Shuanggen Jin, Ke Su
doaj   +1 more source

Three‐Dimensional Reconstruction of Ionospheric Disturbances Using Tikhonov Regularization After 2022 Tonga Volcanic Eruption

open access: yesEarth and Space Science, Volume 12, Issue 9, September 2025.
Abstract Following significant natural hazards, traveling ionospheric disturbances (TIDs) are generated that affect the ionosphere. Understanding the three‐dimensional structure of these TIDs is crucial for understanding their propagation mechanisms. Ionospheric tomography is a viable method to reconstruct these three‐dimensional structures.
Danial Abdollahi   +3 more
wiley   +1 more source

Genetic Variants Affect Distinct Metabolic Pathways in Pediatric Multisystem Inflammatory Syndrome and Severe COVID‐19

open access: yesJournal of Medical Virology, Volume 97, Issue 8, August 2025.
ABSTRACT The coronavirus disease 2019 (COVID‐19) pandemic has triggered a global health crisis, with over 700 million confirmed cases and at least 7 million deaths reported by early 2024. Children are less vulnerable to severe SARS‐CoV‐2 infection than adults and typically experience milder respiratory symptoms.
Alysson Henrique Urbanski   +43 more
wiley   +1 more source

Inferring Proteolytic Processes from Mass Spectrometry Time Series Data Using Degradation Graphs [PDF]

open access: yes, 2012
Background: Proteases play an essential part in a variety of biological processes. Besides their importance under healthy conditions they are also known to have a crucial role in complex diseases like cancer.
Aiche, Stephan   +5 more
core   +3 more sources

Differential Code Bias Estimation and Accuracy Analysis Based on CSES Onboard GPS and BDS Observations

open access: yesRemote Sensing
An accurate estimation of Differential Code Bias (DCB) is essential for high-precision applications of the Global Navigation Satellite System (GNSS) and for the precise determination of GNSS-derived total electron content (TEC).
Jiawen Pang, Fuying Zhu, Shang Wu
doaj   +1 more source

Ionospheric TEC and ROT Analysis with Signal Combinations of QZSS Satellites in the Korean Peninsula

open access: yesRemote Sensing
This study investigates the performance of three different signal combinations (L1-L2, L1-L5, and L2-L5) for estimating ionospheric total electron content (TEC) and the rate of TEC (ROT) using Quasi-Zenith Satellite System (QZSS) observations over the ...
Byung-Kyu Choi   +7 more
doaj   +1 more source

Simulation study of FACTS devices based on AC-AC modular multilevel hexagonal chopper [PDF]

open access: yes, 2017
This paper proposes a new range of FACTS device based on direct AC-AC conversion, where the modular multilevel AC hexagonal chopper (M2AHC) is employed. The M2AHC is operated in quasitwo-level (Q2L) mode; and the heterodyne modulation is used to decouple
Adam, Grain P.   +4 more
core   +1 more source

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