Results 31 to 40 of about 1,073,194 (313)

Experimental Investigation of Zn2+ Impact on Hydration, Carbonation, and Strength of CSA Cement [PDF]

open access: yesE3S Web of Conferences
This study explores the effects of Zn2+ incorporation on the hydration and carbonation behavior of calcium sulfoaluminate (CSA) cement. CSA clinker with varying Zn2+ contents was synthesized using ZnSO4·7H2O as the heavy metal source.
Zhang Pingyang   +5 more
doaj   +1 more source

Previously unreported optical emissions generated during ionospheric heating [PDF]

open access: yes, 2008
Several radio-induced optical emissions were generated during an ionospheric heating experiment performed at the High Power Auroral Stimulation (HIPAS) facility near Two Rivers, Alaska.
Gustavsson, B.   +5 more
core   +3 more sources

Biological validation of milk mid-infrared-predicted dry matter intake, nitrogen use efficiency, and methane production across lactation in individual dairy cows

open access: yesJournal of Dairy Science
: Dry matter intake, nitrogen use efficiency (NUE) for milk production, and methane (CH 4 ) production are key sustainability traits in dairy cows. Milk mid-infrared (MIR) spectroscopy offers a scalable, low-cost solution to quantify these traits.
Maria Frizzarin   +8 more
doaj   +1 more source

A human-portable mass flux method for methane emissions quantification: controlled release testing performance evaluation [PDF]

open access: yesAtmospheric Measurement Techniques
Quantifying methane (CH4) emissions from anthropogenic sources is essential for compliance, inventory, and verification efforts. One established mass balance approach is the mobile flux plane method, in which emissions can be estimated from measurements ...
C. Vollrath   +4 more
doaj   +1 more source

A Comparison of Multiple Odor Source Localization Algorithms

open access: yesSensors, 2023
There are two primary algorithms for autonomous multiple odor source localization (MOSL) in an environment with turbulent fluid flow: Independent Posteriors (IP) and Dempster–Shafer (DS) theory algorithms. Both of these algorithms use a form of occupancy
Marshall Staples   +4 more
doaj   +1 more source

AI-driven productivity gains enable more CO₂ emissions than they avoid in a global energy–economy model

open access: yesnpj Climate Action
The net climate impacts of artificial intelligence (AI) depend largely on how its applications propagate through competing energy pathways. Predominant analyses examine the relationship between datacenter energy demand, renewables optimization, and ...
Will Alpine   +3 more
doaj   +1 more source

Stakeholder Assessment on Closing Nutrient Cycles through Co-Recycling of Biodegradable Household Kitchen Waste and Black Water between Rural and Urban Areas in South India

open access: yesRecycling, 2022
Agricultural land degradation, urban migration, increasing food demand and waste, and inadequate sanitation systems all affect farmers, local society, and the environment in South India.
Veronika Fendel   +5 more
doaj   +1 more source

Effect of DFPP on Ferroptosis in Peripheral Blood CD14+ Monocytes of Hyperlipidemic Patients Involving the ACSL4/LPCAT3/ALOX5 Pathway

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Hyperlipidemia is a major risk factor for atherosclerotic cardiovascular disease (ASCVD). Although statins are the cornerstone of lipid‐lowering therapy, their use may be limited in some patients by adverse effects. This study evaluated the possible impact of non‐drug treatment using double‐filtration plasmapheresis (DFPP) on CD14+
Yun Cheng   +3 more
wiley   +1 more source

Estimates of global terrestrial isoprene emissions using MEGAN (Model of Emissions of Gases and Aerosols from Nature) [PDF]

open access: yes, 2006
Reactive gases and aerosols are produced by terrestrial ecosystems, processed within plant canopies, and can then be emitted into the above-canopy atmosphere.
P. Harley   +17 more
core   +2 more sources

Stocking density adjustment optimises grazing and limits soil ingestion of beef-on-dairy heifers

open access: yesItalian Journal of Animal Science
Grazing conditions that optimise herbage utilisation, together with reduced involuntary soil ingestion by livestock, may improve profitability and lower risks for animal health and food safety. Here, we assessed herbage consumption and selection and soil
Sylvain Lerch   +5 more
doaj   +1 more source

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