Results 81 to 90 of about 2,806,292 (233)

Structural extremes in a cretaceous dinosaur.

open access: yesPLoS ONE, 2007
Fossils of the Early Cretaceous dinosaur, Nigersaurus taqueti, document for the first time the cranial anatomy of a rebbachisaurid sauropod. Its extreme adaptations for herbivory at ground-level challenge current hypotheses regarding feeding function and
Paul C Sereno   +6 more
doaj   +1 more source

Smart Functional Hydrogels: Emerging Platforms for Thermal and Electrochemical Energy Harvesting and Conversion Systems

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The hydrogel exhibits versatile functions, including efficient thermogalvanic conversion under a temperature difference, and acting as a cooling layer/forming a thermally conductive nanoactive composite for thermovoltaic conversion. Additionally, its self‐healing and self‐powered flexibility play a key role in energy storage systems. The growing demand 
Eunah Kang
wiley   +1 more source

High‐Strength, Fluorescent, Triboelectric Cellulose Hydrogel‐Derived Plastics Through Molecular Network Engineering for Energy Harvesting and Motion Sensing

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Multifunctional cellulose hydrogel‐derived plastics (FCBPs) are fabricated via a novel molecular network engineering strategy involving epoxy cross‐linking, solvent exchange, and hot‐pressing techniques. The resulting materials exhibit high mechanical strength, excellent thermal/solvent resistance, stable fluorescence, complete biodegradability, and ...
Fuyuan Lu   +11 more
wiley   +1 more source

Decolorization of Ponceau Red 4R with TiO2/ZnO: Effect of calcination temperature and Fe addition

open access: yesEnvironmental Progress &Sustainable Energy, EarlyView.
Abstract The photocatalytic degradation of azo dyes using semiconductor oxides has emerged as a promising strategy for wastewater remediation. In this study, pure, mixed, and Fe‐doped oxide catalysts based on Zinc Oxide and Titanium Dioxide were synthesized and evaluated for the degradation of Ponceau 4R under ultraviolet irradiation.
Stefani Castilhos   +5 more
wiley   +1 more source

Hybrid Simulation–Machine Learning Surrogates for Coordinate‐Based Solar and Wind Energy Yield Assessment in Iraq: A Streamlit Decision‐Support Tool

open access: yesEnergy Science &Engineering, EarlyView.
This study integrates climatic simulations with machine learning to predict solar and wind energy across Iraq. Results show Random Forest excels for solar (R2 = 0.98) and neural networks for wind (R2 = 0.97), enabling a practical web tool for renewable energy planning. ABSTRACT Driven by the global shift away from fossil fuels, solar and wind resources
Bassam Musheer Kareem   +3 more
wiley   +1 more source

Experimental Evaluation of the Efficacy of Air-Sanitizing Equipment in Neutralizing Airborne SARS-CoV-2 Virus

open access: yesPathogens
Air-sanitizing equipment is a collection of protective devices using filtration and/or UV irradiation to entrap aerosol and kill viruses, to prevent the spread of airborne infective diseases in indoor environments.
Alberto Izzotti   +3 more
doaj   +1 more source

Evaluation of the Toxicity, Morphological and Behavioural Effects of Pelargonium graveolens Essential Oil in Artemia franciscana, Along With Its Antimicrobial Activity

open access: yesFlavour and Fragrance Journal, EarlyView.
Essential oil of Pelargonium graveolens exhibited potent antimicrobial activity against bacterial and fungal pathogens, while higher concentrations induced mortality and altered swimming behaviour in Artemia franciscana. These findings highlight its therapeutic potential and underscore the importance of defining safe concentration ranges to support ...
Silvana de Oliveira   +4 more
wiley   +1 more source

Independent and interactive effects of wet bulb globe temperature and air pollution exposures on suicide mortality

open access: yesEnvironment International
Individual components of the ambient environment, such as temperature and air pollution, exist as part of a complex mixture and have been associated with suicide; however, their interactive effects remain poorly understood. This study examined the independent and interactive effects of wet bulb globe temperature (WBGT), nitrogen dioxide (NO2), and fine
Dirga Kumar Lamichhane   +11 more
openaire   +2 more sources

Composite materials based on dual network cross‐linking for flexible sensors

open access: yesFlexMat, EarlyView.
Utilizing hydrogen bond lithium bond dual network structure to effectively enhance the rapid self‐healing properties of flexible ionic materials. Abstract The further development of flexible ionic materials is limited by the evaporation or leakage of their internal liquid state. This article presents a composite flexible ionic material with no internal
Xiaoming Wang   +6 more
wiley   +1 more source

AWARENESS OF DEMAND-SIDE MANAGEMENT PRACTICES AMONG STAFF OF AN EDUCATIONAL INSTITUTION [PDF]

open access: yesCarpathian Journal of Electrical Engineering, 2019
Awareness of demand-side management practices among staff of educational institutions is critical for energy savings. This paper presents the results of a survey to determine the extent to which staff of the Kwame Nkrumah University of Science and ...
Emmanuel Asuming FRIMPONG   +1 more
doaj  

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