Results 71 to 80 of about 778,445 (172)

Influence of Engine Load on Soot Mass Concentration and Morphology in Diesel Exhaust

Atmosphere
This study investigates the relationship between exhaust gas composition, particle number (PN) emissions, and soot microstructure of a 1.9 L compression-ignition engine operated under six controlled steady-state load regimes at 2000 min−1.
Iliyan Damyanov, Evgeni Dimitrov, Hristo Konakchiev, Iliyan Ognyanov   +3 more
doaj   +1 more source

ITSxRust: ITS Region extraction with partial‐chain recovery and structured diagnostics for long‐read amplicon sequencing

Methods in Ecology and Evolution, EarlyView.
Abstract Long‐read amplicon sequencing is now routine for fungal metabarcoding, and locating the internal transcribed spacer (ITS) subregions within reads has become a throughput bottleneck. Existing extractors were designed for shorter reads and for datasets in which near‐identical sequences are common, and neither assumption holds for Oxford Nanopore
Aaron O'Brien, Catalina Lagos, Kiara Fernández, Bárbara Ojeda, Pilar Parada   +4 more
wiley   +1 more source

Effects of Injection Rate Profile on Combustion Process and Emissions in a Diesel Engine

Journal of Combustion, 2017
When multi-injection is implemented in diesel engine via high pressure common rail injection system, changed interval between injection pulses can induce variation of injection rate profile for sequential injection pulse, though other control parameters ...
Fuqiang Bai, Zuowei Zhang, Yongchen Du, Fan Zhang, Zhijun Peng   +4 more
doaj   +1 more source

Modern Fire Safety Protocols in the Archeological Contexts: A New Tool for Studying the Health and Behavioral Effects of Fire Use in Semi‐Closed Spaces

Archaeometry, EarlyView.
ABSTRACT This study evaluates the application of computational fluid dynamics (CFD) simulations, integrated with controlled fire experiments, to investigate combustion processes in semi‐closed spaces. The framework enables systematic modeling of smoke dispersal, particulate transport, and hearth performance under variable morphologies and ventilation ...
Yafit Kedar
wiley   +1 more source

Investigation of ethanol blending on soot particle evolution in counterflow diffusion flames of a gasoline surrogate

Applications in Energy and Combustion Science
Across all transport sectors, there is an increasing recognition of the importance of reducing not only CO2 emissions but also other climate-impacting pollutants, such as soot particulate matter.
Fenja Ahrendt, Robert Schmitz, Fabian P. Hagen, Petros Vlavakis, Dimosthenis Trimis, Federica Ferraro   +5 more
doaj   +1 more source

Opinion: Eliminating aircraft soot emissions [PDF]

Aerosol Research
Soot from aircraft engines deteriorates air quality around airports and can contribute to climate change primarily by influencing cloud processes and contrail formation.
U. Trivanovic, S. E. Pratsinis
doaj   +1 more source

Talc‐Tempered Pottery From Bala Hissar, Kabul: An Analytical Study

Archaeometry, EarlyView.
ABSTRACT Potsherds of cooking ware excavated at Bala Hissar archaeological site in Kabul were studied using X‐ray fluorescence (XRF), scanning electron microscope‐energy dispersive X‐ray spectrometry (SEM‐EDS), Raman spectroscopy, X‐ray powder diffraction (XRPD), thermogravimetric analysis (TGA) and optical microscopy.
Parviz Holakooei, Babak Rafiei‐Alavi, Hafizullah Hazim, Hasti Pezeshkanjalili, Lara Maritan   +4 more
wiley   +1 more source

Impacts of coal smoke on infant mortality: Evidence from industrializing Japan

The Economic History Review, EarlyView.
Abstract This study investigates the health consequences of coal smoke during Japan's early industrialization. Using fixed‐effects models and a prefecture‐level panel dataset on actual coal consumption and infant mortality from 1899 to 1910, this study finds that higher coal consumption was positively associated with infant mortality.
Tatsuki Inoue
wiley   +1 more source

Effects on of Blended Biodiesel and Heavy Oil on Engine Combustion and Black Carbon Emissions of a Low-Speed Two-Stroke Engine

Polish Maritime Research
The effects of heavy fuel oil and biodiesel blends on engine combustion and emissions were studied in a marine two-stroke diesel engine. The engine was operated under propeller conditions using five different fuels with biodiesel blends of 10% (B10), 30%
Wei Cunfeng, Jiang Guohe, Wu Gang, Zhou Yu, Liu Yuanyuan   +4 more
doaj   +1 more source

Comparisons of the Emissions of Ethanol/Diesel and n-Pentanol/Diesel Fuel Blends: Engine Test and Kinetic Modeling Study

IEEE Access, 2019
A comparative study of the effects of ethanol/diesel (DE) and n-pentanol/diesel (DP) blends on the engine performance and emission in a direct-injection diesel engine was carried out.
Xiaohui Yang, Xin Huang, Wei Zhang, Peng Wei, Shaoping Xu   +4 more
doaj   +1 more source