Results 61 to 70 of about 363,099 (315)

A Roadmap for Plasma‐Enabled Electrocatalysis in Urea Production

open access: yesAdvanced Materials, EarlyView.
A modular plasma—electrochemical platform enables fully electrified urea synthesis from air and CO2 under ambient conditions. This Review integrates plasma oxidation, C─N coupling electrolysis, mechanistic insights, and techno‐economic metrics into a roadmap for scalable, distributed, and renewable fertilizer production.
Jingwen Huang   +6 more
wiley   +1 more source

Ultrasonic sound speed analysis of hydrating calcium sulphate hemihydrate \ud [PDF]

open access: yes, 2011
This article focuses on the hydration, and\ud associated microstructure development, of b-hemihydrate\ud to dihydrate (gypsum). The sound velocity is used to\ud quantify the composition of the fresh slurry as well as the\ud hardening and hardened—porous ...
Brouwers, H.J.H., Korte, A.C.J. de
core   +8 more sources

Wirelessly Powered Ingestible Capsule for Optical Stimulation of the Gastrointestinal Tract in Rodents

open access: yesAdvanced Materials Technologies, EarlyView.
An ingestible electronic capsule, ICOPS, enables non‐invasive optical gut stimulation in rodents. ICOPS features modular LEDs and optimized power transfer for robust, in vivo functionality. This cleanroom‐free, 3D‐printed platform offers a compact, scalable solution for optogenetically interfacing enteric neural circuits, promising advances in ...
Mohamed Elsherif   +9 more
wiley   +1 more source

Assessment of smallholder rice farmers' adaptation strategies to climate change in Kebbi state, Nigeria

open access: yesHeliyon
The future of food production in Nigeria where smallholding agriculture is prevalent is threatened by climate change. Despite the threats, Nigeria has no specific plan or policy to combat it. Therefore, understanding how smallholder farmers adjust to the
Sodipe Solaja   +11 more
doaj   +1 more source

Value of river discharge data for global-scale hydrological modeling [PDF]

open access: yes, 2007
his paper investigates the value of observed river discharge data for global-scale hydrological modeling of a number of flow characteristics that are required for assessing water resources, flood risk and habitat alteration of aqueous ecosystems.
Döll, Petra, Hunger, Martin
core   +3 more sources

Can the Covid19 pandemic affect the achievement of the ‘Zero Hunger’ goal? Some preliminary reflections

open access: yesEuropean Journal of Health Economics, 2021
The ongoing Covid19 pandemic is producing dramatic effects on the economic and social life of many countries, which in turn may further undermine people’s health and well-being.
Donatella Saccone
semanticscholar   +1 more source

Chitosan, Gelatine, and Cellulose Based Hydrogels for the Removal of Potentially Toxic Elements from Aquaculture Water: A Comparative Study

open access: yesAdvanced Sustainable Systems, EarlyView.
Hydrogels made of chemically modified biopolymers are easy to prepare and cost‐effective, they have proven to be effective materials for the simultaneous removal of seven potentially toxic elements (PTEs) from ultrapure and real water samples. The cellulose‐based one seems the best for single treatments while the gelatine‐based one seems the most ...
Monica Rigoletto   +6 more
wiley   +1 more source

A Qualitative Analysis of the Commercial Broiler System, and the Links to Consumers' Nutrition and Health, and to Environmental Sustainability: A South African Case Study

open access: yesFrontiers in Sustainable Food Systems, 2021
Food systems face growing challenges to meet targets of Zero Hunger (SDG 2), and South Africa is no exception given its triple burden of malnutrition, foodborne disease outbreaks, and threats of climate change to food production.
Kevin Queenan   +7 more
doaj   +1 more source

Leveraging Transfer Learning to Overcome Data Limitations in Czochralski Crystal Growth

open access: yesAdvanced Theory and Simulations, EarlyView.
A data‐driven framework combining Computational Fluid Dynamics (CFD) simulations and machine learning is proposed to model and optimize Czochralski crystal growth. Using different transfer learning strategies (Warm Start, Merged Training, and Hyperparameter Transfer) the study demonstrates improved predictions for Ge and GaAs growth from Si‐trained ...
Milena Petkovic   +3 more
wiley   +1 more source

How agroecological rice intensification can assist in reaching the Sustainable Development Goals

open access: yesInternational Journal of Agricultural Sustainability, 2022
The UN Development Program has set forth a roster of sustainable development goals (SDGs) for eradicating hunger and poverty with other consequential targets also to be achieved by 2030. Agroecological production strategies can help accomplish about half
Amod K. Thakur   +3 more
doaj   +1 more source

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