Results 141 to 150 of about 140,822 (260)

Thermodynamic Insights Into Direct Methane to Methanol Conversion Using O2 and CO2 Oxidants

open access: yesChemistryOpen, Volume 15, Issue 5, May 2026.
A thermodynamic analysis compares O2 and CO2 for the direct partial oxidation of methane to methanol. While O2 offers higher theoretical conversions, it poses safety risks and favors total oxidation. CO2 presents a safer, more sustainable alternative despite its thermodynamic limitations.
Victor I. O. Sumikawa   +3 more
wiley   +1 more source

Development of a vehicle robotic driver with intelligent control system modelling for automated standard driving-cycle tests [PDF]

open access: yes, 2019
New road vehicles are required to undergo several specific tests to meet the requirement set by governing bodies in various markets. These tests are often carried out over specific driving-cycles.
Mohammed Mahdi, Ammar Abdo
core  

Toward Efficient and Reliable Chemical Upgrading Using Solid Oxide Electrochemical Reactors, Mechanisms, Challenges, and Design Principles

open access: yesSmall, Volume 22, Issue 27, 14 May 2026.
Solid oxide electrochemical reactors (SOERs) offer a compelling pathway for coupling renewable electricity with chemical manufacturing, but their real application is still limited by low efficiency and instability. This review systematically summarizes SOER reaction mechanisms, performance‐limiting factors, and recent progress toward high‐efficiency ...
Nai Shi   +3 more
wiley   +1 more source

Trading Strategies on Local Electricity Markets Using Agent‐Based Modelling and Reinforcement Learning: Vectors to Expand Energy Communities

open access: yesSystems Research and Behavioral Science, Volume 43, Issue 3, Page 1188-1211, May/June 2026.
ABSTRACT Energy communities (ECs) members have a high degree of heterogeneity. Agent‐based modelling (ABM) allows for the modelling of each entity as an agent with distinct characteristics and decision rules. This is particularly useful when the heterogeneity of agents affects outcomes.
Adela Bâra, Simona‐Vasilica Oprea
wiley   +1 more source

Valve recession: From experiment to predictive model

open access: yes, 2004
Increasing demands on engine performance and cost reductions have meant that advances made in materials and production technology are often outpaced This frequently results in wear problems occurring with engine components.
Brooks, A.   +3 more
core  

Global Model Estimates of Atmospheric Al, Ca, Fe, Si, and Ti From Dust and Non‐Dust Aerosols Informed by EMIT Surface Mineralogy and Evaluated Against Observations

open access: yesGlobal Biogeochemical Cycles, Volume 40, Issue 5, May 2026.
Abstract Atmospheric deposition of micro‐nutrients like Fe has been shown to be important for ocean biogeochemistry. The largest source of atmospheric Fe and other elements (e.g., Ca, Al, Si, and Ti) is desert dust, although there are significant non‐dust sources in some regions (e.g., combustion, sea salts, volcanoes). However, past estimates of these
Natalie M. Mahowald   +61 more
wiley   +1 more source

Energy and Environmental Performance of Biodiesel Derived From Waste Vegetable and Animal Oils: Integrated Energy Balance, Process Optimization, and Feasibility Assessment

open access: yesGCB Bioenergy, Volume 18, Issue 5, May 2026.
This study demonstrates a highly efficient biodiesel production route from waste vegetable and animal oils, achieving a net energy ratio (NER) of 7.8–8.2 and over 85% greenhouse‐gas reduction. Methanol recovery and optimized logistics enhanced energy efficiency, validating waste‐oil biodiesel as a sustainable circular‐bioeconomy fuel.
Atour Hamid   +2 more
wiley   +1 more source

What Is the Best Use of Biomass? A Harmonized LCA‐TEA Framework Quantifying Economic and Environmental Metrics for Bioenergy Pathways

open access: yesGCB Bioenergy, Volume 18, Issue 5, May 2026.
A harmonized LCA and TEA framework evaluates 19 bioenergy pathways, quantifying carbon intensity (CI), minimum fuel selling price (MFSP), and marginal abatement cost (MAC). CCS reduces CI to net‐negative values and lowers MAC by up to 64%, with bioelectricity achieving the lowest MAC and liquid biofuels critical for hard‐to‐abate sectors.
Saurajyoti Kar   +5 more
wiley   +1 more source

Spatiotemporal Analysis of Firewood‐Related GHG Emissions in Brazil Using Moran's I and LISA: Insights for Regional Energy Planning

open access: yesGCB Bioenergy, Volume 18, Issue 5, May 2026.
Regional firewood‐related GHG emissions in Brazil declined over three decades due to reduced extractive use, while silvicultural emissions grew and formed distinct spatial clusters. These contrasting trajectories highlight uneven regional transitions and reveal where targeted policies can most effectively advance sustainable, low‐carbon bioenergy ...
Luiz Moreira Coelho Junior   +5 more
wiley   +1 more source

A Critical Review on Green Conversion Techniques of Biomass Waste to Value‐Added Bioproducts: Advances, Challenges, and Future Technological Strategies

open access: yesGCB Bioenergy, Volume 18, Issue 5, May 2026.
This study highlights developments in cost‐effective fractionation techniques to ensure the sustainability and industrial applicability of biomass. ABSTRACT Given the depletion of fossil fuels and global concerns about environmental protection, lignocellulosic biomass is an excellent alternative candidate due to its unique combination of ...
Sunesh Narayanaperumal   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy