Results 121 to 130 of about 3,758,848 (255)

Mapping Soil Salinity Prediction Enhanced by Time‐Series Remote Sensing Features

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Gaining timely knowledge of soil salinity's spatiotemporal dynamics is crucial for accurate mapping. Through temporal span comparisons, this study systematically extracts and utilizes time‐series features (TSFs) derived from Sentinel‐2 and Landsat 8 NDVI and SAVI data (2019–2023) to enhance prediction accuracy. Three datasets were constructed:
Wenji Zhu   +3 more
wiley   +1 more source

Estudos de Dieta Total (TDS)

open access: yes, 2019
Sumário: Enquadramento; O que é um TDS?; A que objetivos pode responder?; Vantagens e desvantagens de um TDS; Porquê um TDS em Portugal?; Introdução ao projeto TDS piloto.N/
Oliveira, Luísa
core  

Hydrogen Analyses of FSW Cu‐OFP Tested Under Creep Conditions in Sulphide Containing Environment

open access: yesMaterials and Corrosion, EarlyView.
Friction stir welded Cu‐OFP exhibits elevated creep rates in sulphide‐containing aqueous environments, with creep increasing as sulphide concentration rises. Hydrogen measurements indicate that sulphide exposure does not increase hydrogen content. ABSTRACT Friction stir welded oxygen‐free phosphorus‐doped copper (FSW Cu‐OFP) is a candidate material for
Patrik Sahiluoma   +3 more
wiley   +1 more source

Measurement of reverberation time using Time Delay Spectrometry (TDS)

open access: yesArchives of Acoustics, 2014
In the series of papers printed in the Journal of Audio Engineering Society in late sixties and early seventies, Richard C. Heyser introduced a revolutionary measurements technique which he named Time Delay Spectrometry (TDS) [1-6].
G. PAPANIKOLAOU   +2 more
doaj  

Associations Between Cumulative Head Trauma and Self‐Reported Parkinsonism and Parkinson's Disease in Former Soccer Players

open access: yesMovement Disorders, EarlyView.
Abstract Background Cumulative head trauma, encompassing repetitive head impacts (RHI) and traumatic brain injury (TBI), has been associated with later‐life neurodegenerative disease. Studies on parkinsonism/Parkinson's disease (PD) have evaluated RHI and TBI in isolation, yielding mixed results.
Annalise E. Miner   +14 more
wiley   +1 more source

Precisely Engineered Ultrathin Nanosheets With Amorphous Ni(OH)x‐Encapsulated Ru Nanoclusters for Enhanced Water Splitting in Neutral Media

open access: yesNational Materials, EarlyView.
An ultrathin 2D nanosheet composite of ultrafine Ru nanoclusters embedded in amorphous Ni(OH)x was synthesized in one step. Synergistic Ru‐Ni(OH)x interactions and abundant Ni–O–Ru interfacial sites provide excellent catalytic activity, robust stability, and highly efficient hydrogen evolution in both neutral and alkaline electrolytes under practical ...
Jifang Zhang   +13 more
wiley   +1 more source

RATE TRANSIENT ANALYSIS FOR HOMOGENEOUS AND HETEROGENEOUS GAS RESERVOIRS USING THE TDS TECHNIQUE ANÁLISIS DE PRUEBAS DE CAUDAL VARIABLE PARA YACIMIENTOS DE GAS HOMOGÉNEOS Y HETEROGÉNEOS MEDIANTE LA TÉCNICA TDS

open access: yesCT&F Ciencia, Tecnología & Futuro, 2008
In this study pressure test analysis in wells flowing under constant wellbore flowing pressure for homogeneous and naturally fractured gas reservoir using the TDS technique is introduced.
Freddy- Humberto Escobar   +2 more
doaj  

Seasonal Baseline Evaluation of Physicochemical Parameters and Culturable Bacterial Characteristics in Northwestern Himalayan Ramsar Sites. [PDF]

open access: yesEnviron Microbiol Rep
Seasonal monitoring of two Himalayan Ramsar wetlands revealed significant fluctuations in physicochemical parameters and low bacterial diversity across seasons. Elevated dissolved oxygen at Renuka Ji, turbidity and dissolved oxygen at Asan Conservation Reserve levels highlight ecological sensitivity and the need for continuous monitoring and ...
Butt S   +5 more
europepmc   +2 more sources

Structural Variation Sequencing of 26 Amniotic Fluid Samples With Partial Gene Duplications and Postnatal Follow‐Up of the Fetuses

open access: yesPrenatal Diagnosis, EarlyView.
ABSTRACT Objectives Partial gene duplications (PGDups) are a significant contributor to genetic disease. The precise genomic location and structure of PGDups are often unresolved using conventional methods, so prenatal diagnosis for PGDups is challenging, especially without ultrasound abnormalities.
Shengfang Qin   +10 more
wiley   +1 more source

A Multi‐Method Approach to Assessing Barrier Effectiveness in Preventing the Spread of Invasive Signal Crayfish (Pacifastacus leniusculus)

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Relieving barriers and increasing free flowing rivers is a global imperative to restore habitat connectivity for migratory fish stocks. While reducing river fragmentation will certainly improve biodiversity, the spread of non‐native species throughout a river system may be facilitated as an inadvertent outcome.
Matthew Harwood   +5 more
wiley   +1 more source

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