Results 61 to 70 of about 730,568 (347)

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

open access: yesFEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc   +8 more
wiley   +1 more source

Composite Electrospun Fibers Containing Optimized B‐ and Cu‐Doped Bioactive Glass Sol‐Gel Particles for Potential Soft Tissue Engineering Applications

open access: yesAdvanced Engineering Materials, EarlyView.
This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti   +5 more
wiley   +1 more source

Simple model for the prediction of ammonia volatilization from water basin: effect of water temperature and pH [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2004
Ammonia is a primary chemical used for preserving rubber latex. Consequently, the wastewater from concentrated rubber latex processing contains high ammonia concentration.
Intamanee, J.   +3 more
doaj  

Fontes alternativas à ureia no fornecimento de nitrogênio para o arroz irrigado Alternative sources of supply in the urea nitrogen for rice production

open access: yesCiência Rural, 2011
A ureia é a principal fonte de N usada na agricultura, mas apresenta grandes perdas em arroz irrigado por alagamento. O objetivo deste trabalho foi avaliar a eficiência de fontes de N alternativas à ureia para utilização pelo arroz irrigado aplicadas em ...
Enio Marchesan   +6 more
doaj   +1 more source

Cryptocurrency volatility markets [PDF]

open access: yesDigital Finance, 2020
AbstractBy computing a volatility index (CVX) from cryptocurrency option prices, we analyze this market’s expectation of future volatility. Our method addresses the challenging liquidity environment of this young asset class and allows us to extract stable market implied volatilities.
openaire   +4 more sources

Local volatility under rough volatility

open access: yesMathematical Finance, 2023
AbstractSeveral asymptotic results for the implied volatility generated by a rough volatility model have been obtained in recent years (notably in the small‐maturity regime), providing a better understanding of the shapes of the volatility surface induced by rough volatility models, supporting their calibration power to SP500 option data.
Florian Bourgey   +3 more
openaire   +3 more sources

Micropleated Nanofibrous Filters for High‐Efficiency Submicron Aerosol Filtration: A Comparative Study with Chemical, Biological, Radiological, and Nuclear Gas Mask Filters

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents micropleated filters manufactured by needleless electrospinning. Nanofibers are deposited onto uniaxially pre‐stretched substrates that contract upon release, forming densely packed micropleats. This architecture increases effective surface area without enlarging the filter size, achieving quality factors comparable to those of ...
Aleksandr Fadeev   +6 more
wiley   +1 more source

Study on Effect of Nickel Transition Layer on Microstructure and Thermal Stability of Anti-volatilization Tungsten Coating

open access: yesYuanzineng kexue jishu
To address material failure of key components in space nuclear reactors under high-temperature and ultra-high vacuum conditions and enhance their ability to withstand severe accidents, it is necessary to develop anti-volatilization coatings with ...
ZHANG Jinbai1, 2, YANG Wanhuan1, , LI Xiaoquan1, CHEN Shuai1, PENG Dequan1, LI Shen2, ZHONG Weihua1, YANG Wen1
doaj   +1 more source

An Inkjet‐Printed Platinum‐Based Temperature Sensing Element on Polyimide Substrates

open access: yesAdvanced Engineering Materials, EarlyView.
An inkjet‐printed, meander‐structured, nanoparticle platinum‐based resistive temperature sensors on polyimide substrates are demonstrated as proof‐of‐concept. Optimized sintering at 250°C enables stable conductive structures. The Pt100‐ and Pt1000‐type sensors exhibit linear resistance–temperature characteristics with stable TCR in the 20°C–80°C range,
Shawon Alam   +6 more
wiley   +1 more source

Electrophysiological and Behavioral Responses of Holotrichia parallela to Volatiles from Peanut [PDF]

open access: gold, 2021
Mengmeng Zhang   +5 more
openalex   +1 more source

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