Results 41 to 50 of about 417,193 (285)

A field study onboard VLCCs for CO2 emission reduction considering EEDI and SEEMP

open access: yesAlexandria Engineering Journal
Recently, the demand for alleviating the environmental impact triggered by shipping industry is continuously on the rise. To meet the aspired expectations in terms of fuel consumption and emission levels, ships have to adhere to and comply with the ...
Tarek A. Ashry   +3 more
doaj   +1 more source

Tailoring Redox Active Sites with Dual‐Interfacial Electric Fields for Concurrent Photocatalytic Biomass Valorization and H2 Production

open access: yesAdvanced Functional Materials, EarlyView.
A rationally engineered bifunctional photocatalyst is reported, which achieves simultaneous selective oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐diformylfuran (DFF) and efficient H2 evolution. By precisely positioning Au and Co3O4 on Zn3In2S6 nanosheet, dual interfacial electric fields are well constructed to spatially separate ...
Shiqing Li   +8 more
wiley   +1 more source

Anti-interference design for coal mine safety monitoring system and composition equipment

open access: yesGong-kuang zidonghua, 2017
In view of problem of poor anti-interference capability of existing coal mine safety monitoring system and composition equipment, and requirements of 'strengthening the anti-electromagnetic interference ability of the system and the equipments' of the ...
ZHU Qianwei
doaj   +1 more source

Artificial photosynthesis bringing new vigor into plastic wastes

open access: yesSmartMat, 2023
The accumulation of plastic wastes in landfills and the environment threatens our environment and public health, while leading to the loss of potential carbon resources.
Sailei Kang   +7 more
doaj   +1 more source

Ice Lithography: Recent Progress Opens a New Frontier of Opportunities

open access: yesAdvanced Functional Materials, EarlyView.
This review focuses on recent advancements in ice lithography, including breakthroughs in compatible precursors and substrates, processes and applications, hardware, and digital methods. Moreover, it offers a roadmap to uncover innovation opportunities for ice lithography in fields such as biological, nanoengineering and microsystems, biophysics and ...
Bingdong Chang   +9 more
wiley   +1 more source

High‐Yield Synthesis of Fe‐NC Electrocatalysts Using Mg2+ Templating and Schiff‐Base Porous Organic Polymers

open access: yesAdvanced Functional Materials, EarlyView.
Fe─NC porous oxygen reduction electrocatalysts are prepared employing a 2,4,6‐Triaminopyrimidine‐based porous organic polymer, a Mg2+ Lewis acid, and a low‐temperature cation exchange protocol. Using the polymer precursor achieves high pyrolysis yields and results in atomically dispersed FeNx sites. The resulting catalysts feature hierarchical porosity
Eliot Petitdemange   +11 more
wiley   +1 more source

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee   +17 more
wiley   +1 more source

Teacher Upgrading through Distance Education in a South African Context

open access: yesOpen Praxis, 2007
In 1994, after the dismantling of Apartheid in South Africa, there were more than 85,000 teachers in the system who had no tertiary qualifications or were inadequately qualified.
C. G. Kruger, E. J. Spamer
doaj   +2 more sources

Artificial Amorphous Interface Matters for Boosting High‐Voltage Stable LiCoO2 Cathode

open access: yesAdvanced Functional Materials, EarlyView.
The amorphization of phosphate‐based surface layer with favorable Li‐ion conducting kinetics is realized by precisely tailored atomic‐level fabrication. This amorphous coating enables the lithium cobalt oxide (LCO) cathode superior high‐voltage rate capability and cycling performance, owing to the fast interfacial ionic transport and maintained ...
Jinjin Ma   +10 more
wiley   +1 more source

Catalytic Hydrotreatment of Microalgae Biocrude from Continuous Hydrothermal Liquefaction: Heteroatom Removal and Their Distribution in Distillation Cuts

open access: yesEnergies, 2018
To obtain drop-in fuel properties from 3rd generation biomass, we herein report the catalytic hydrotreatment of microalgae biocrude, produced from hydrothermal liquefaction (HTL) of Spirulina.
Muhammad Salman Haider   +4 more
doaj   +1 more source

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