Results 51 to 60 of about 3,874 (192)

Characteristics of Early Flame Development in a Direct-Injection Spark-Ignition CNG Engine Fitted with a Variable Swirl Control Valve

open access: yesEnergies, 2017
An experimental study was conducted to investigate the effect of the structure of the induction flow on the characteristics of early flames in a lean-stratified and lean-homogeneous charge combustion of compressed natural gas (CNG) fuel in a direct ...
Abd Rashid Abd Aziz   +4 more
doaj   +1 more source

Physicochemical properties, fermentative profile, microbiological quality, and pathogen contamination of baled silage during long‐term storage

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Baled silage is expanding in Mediterranean regions due to climate change and demand for high‐quality forage; therefore, evaluating the effects of long‐term storage on microbiological and fermentative quality is essential. RESULTS In this study, 115 baled silages were sampled from different farms at 30, 60, 90, 180, and 270 days ...
Lidia Nieddu   +6 more
wiley   +1 more source

Compound‐Specific Stable Isotope Analysis Improves the Association Between Dairy Fatty Acid Biomarkers and Dairy Intake: A Secondary Analysis

open access: yesLipids, EarlyView.
ABSTRACT Increasing evidence suggests that dairy consumption may decrease the risk of chronic diseases. However, this association remains unclear due to methodological limitations. As a part of a secondary analysis, we used compound‐specific stable isotope analysis to increase the accuracy of the dairy FA biomarkers (15:0, 17:0), considering that each ...
Camilla Parzanini   +8 more
wiley   +1 more source

Black Phosphorus/Ferroelectric CuInP2S6 Heterostructures Empowering Nonvolatile Photonic Convolutional Computing

open access: yesLaser &Photonics Reviews, EarlyView.
ABSTRACT The growing demands of artificial intelligence require new energy‐efficient and nonvolatile computing paradigms. To meet this challenge, we demonstrate a foundational device platform for optical fiber computing that targets the signal decay and power consumption bottlenecks of conventional systems.
Yule Zhang   +18 more
wiley   +1 more source

Stop Using Limiting Stimuli as a Measure of Sensitivities of Energetic Materials

open access: yesPropellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Accurately estimating the sensitivity of explosive materials is a potentially life‐saving task that requires standardised protocols across nations. One of the most widely applied procedures worldwide is the so‐called ‘1‐In‐6’ test from the United Nations (UN) Manual of Tests in Criteria, which estimates a ‘limiting stimulus’ for a material. In
Dennis Christensen, Geir Petter Novik
wiley   +1 more source

Transient Evolution of Strain and Curvature in Flames Developing from Kernels [PDF]

open access: yesInternational Journal of Spray and Combustion Dynamics, 2012
Achieving reliable ignition in lean-burn natural gas engines is a challenge. To provide insight into the processes involved, direct simulations are carried out to study the influence of varying flow fluctuation scales on flames developing from kernels.
Harinath Reddy, John Abraham
openaire   +1 more source

Research on the Energy Conversion Mechanism of Engine Speed, Turbulence and Combustion Stability Based on Large Eddy Simulation

open access: yesEnergies
Cycle-to-cycle variation (CCV) is an inherent phenomenon in internal combustion engines that poses significant limitations on thermal efficiency in energy conversion. This variation can also cause structural damage.
Zijian Zhang   +8 more
doaj   +1 more source

Decoding α‐MoC1−x Nanoparticle Formation in Continuous Flow via Machine Learning

open access: yesSmall, EarlyView.
Formation pathway of α‐MoC1−x nanoparticles synthesized from oleylamine‐Mo(CO)6 precursor under mild continuous‐flow conditions was investigated. By combining in‐line spectroscopic monitoring with a machine learning (ML) framework capable of deconvoluting complex, overlapping spectral features, we reveal mechanistic details of early‐transition‐metal ...
Bin Pan   +7 more
wiley   +1 more source

Ignition characteristics of hydrogen-enriched ammonia/air mixtures

open access: yesApplications in Energy and Combustion Science
Ammonia is an attractive hydrogen carrier and potential fuel which could play a role in decarbonizing process heat, power or transport applications. However, the combustion properties of ammonia are disadvantageous for many technical processes.
Stefan Essmann   +8 more
doaj   +1 more source

Reducing the use of Fossil Carbon and Fuels to Defossilize the Electric Steelmaking Route: Evaluation of the Effects of Alternative C‐Bearing Materials and Hydrogen in the Electric Arc Furnace

open access: yessteel research international, EarlyView.
The experiments and simulations demonstrate that, in general, alternative carbon sources can decrease fossil CO2 without adversely impacting EAF process and product. High plastics and tires ratios cause unsafe conditions and poor slag foaming. Hydrogen in EAF burners decreases CO2 but increases water vapor, which can raise the hydrogen content in ...
Ismael Matino   +7 more
wiley   +1 more source

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