Results 11 to 20 of about 4,018 (217)

Particle Size Influence on the Transport Classification Labels and Other Flammability Characteristics of Powders

open access: yesApplied Sciences, 2020
Dust explosions and fires pose an industrial safety problem, due to the human and material losses caused by them. As many fuel processes and material transport generate powder particles, the effect of granulometry in different flammability properties has
Blanca Castells   +3 more
doaj   +1 more source

Frictional Losses of Ring Pack in SI and HCCI Engine

open access: yesEnergies, 2023
The vast majority of research dedicated to enhancing the homogenous charge compression ignition (HCCI) low-temperature combustion system is focused on improving controllability, efficiency and emissions.
Grzegorz Koszalka, Andrzej Wolff
doaj   +1 more source

Analytical criterion for shock ignition of fusion reaction in hot spot

open access: yesEPJ Web of Conferences, 2013
Shock ignition of DT capsules involves two major steps. First, the fuel is assembled by means of a low velocity conventional implosion. At stagnation, the central core has a temperature lower than the one needed for ignition.
Ribeyre X.   +5 more
doaj   +1 more source

Characterizing Wildland-Urban Interface Fire Typology and Climate Associations Across California, USA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
California experiences some of the most intense wildfire activity globally, with substantial human casualties and economic losses that show accelerating trends.
H. Su   +8 more
doaj   +1 more source

Magnetic loss measurement of surface-mounted permanent magnet synchronous machines used in explosive environments

open access: yesThe Journal of Engineering, 2019
High energy-efficient permanent magnet synchronous machines (PMSMs) with low manufacturing costs and easy controllability are in high demand for the automotive and aerospace industries and in explosive environments (hazardous areas) like mines and the ...
Nijan Yogal   +2 more
doaj   +1 more source

METHOD OF CALCULATION OF AIR-FUEL MIXTURE MINIMUM IGNITION ENERGY IN GAS ENGINE [PDF]

open access: yesAvtomobilʹnyj Transport (Harʹkov), 2013
The improved method of minimum ignition energy calculation in a gas engine that takes into account radiation energy losses in a flame kernel has been presented. Comparison of calculation results using this model with experimental data has been performed.
Abramchuk, F., Kabanov, A., Shvydkyi, D.
doaj  

Study of the effect of ultraviolet radiation on the development of corona discharge in high voltage networks

open access: yesВестник Северо-Кавказского федерального университета
Introduction. One of the significant components of losses in high-voltage electrical networks is corona discharge losses or "corona losses", which can, depending on the voltage level of the power line and weather conditions, reach 50 % or higher of the ...
D. V. Petrov   +2 more
doaj   +1 more source

Increasing thermal efficiency in internal combustion engines through automated control of operational processes

open access: yesMachinery & Energetics
The study aimed to analyse a closed-loop control strategy that adjusts the ignition timing and fuel injection to increase work output in the cylinder whilst ensuring knock safety and reducing cycle instability.
V. Duhanets, V. Pukas, M. Volynkin
doaj   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

Advancing SafeWax, A Bio‐Inspired Superhydrophobic Coating, Toward Sustainable and Climate‐Resilient Crop Protection

open access: yesAdvanced Functional Materials, EarlyView.
This study advances SafeWax, a bio‐inspired, fatty‐acids‐based superhydrophobic coating, by identifying an agriculturally compliant solvent and revealing how solvent‐controlled Fatty acid crystallization governs the coating's microscopic structure and performance.
Niv Ben‐Arie   +13 more
wiley   +1 more source

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