Results 61 to 70 of about 3,013,991 (279)

Running bumps from stealth bosons

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
For the ‘stealth bosons’ S, light boosted particles with a decay $$S \rightarrow A A \rightarrow q \bar{q} q \bar{q}$$ S→AA→qq¯qq¯ into four quarks and reconstructed as a single fat jet, the groomed jet mass has a strong correlation with groomed jet ...
J. A. Aguilar-Saavedra
doaj   +1 more source

Individual aerosol particles from biomass burning in southern Africa: 1. Compositions and size distributions of carbonaceous particles [PDF]

open access: yes, 2003
Individual aerosol particles in smoke plumes from biomass fires and in regional hazes in southern Africa were studied using analytical transmission electron microscopy ( TEM), which allowed detailed characterization of carbonaceous particle types in ...
Hobbs, Peter V.   +4 more
core   +1 more source

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane   +3 more
wiley   +1 more source

Spin Representations of the q-Poincare Algebra [PDF]

open access: yes, 2001
In der Quantenmechanik können freie Elementarteilchen durch irreduzible Darstellungen der Poincare-Algebra beschrieben werden. Im Rahmen der Darstellungtheorie der q-deformierten Poincaré-Algebra untersucht diese Arbeit den Spin von Teilchen auf einer ...
Blohmann, Christian
core   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Individual aerosol particles from biomass burning in southern Africa: 2. Compositions and aging of inorganic particles [PDF]

open access: yes, 2003
Individual aerosol particles collected over southern Africa during the SAFARI 2000 field study were studied using transmission electron microscopy and field- emission scanning electron microscopy.
Hobbs, Peter V.   +3 more
core   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Role of kinetic Alfvén waves in the non-extensive anisotropic earth’s magnetospheric plasma

open access: yesFrontiers in Astronomy and Space Sciences
Kinetic Alfvén waves (KAWs) contribute significantly to particle acceleration in the magnetosphere of Earth. In this paper, we discussed how the charged particles’ (electrons and ions) speeds vary with distance during the wave-particle interaction.
Imran A. Khan   +4 more
doaj   +1 more source

Electrification of Fine Particles in Gas-Solids Pipe Flow [Translated]†

open access: yesKONA Powder and Particle Journal, 2014
The electrification of fine particles in a gas-solids pipe flow is investigated theoretically and experimentally. Flowing particles are charged through their collisions with a pipe wall.
Hiroaki Masuda   +3 more
doaj   +1 more source

Resonance supression of high Q particle accelerometer

open access: yes, 2022
The noise floor of high-performance accelerometers is conditioned by the vacuum pressure inside the sensor package. However, less than atmospheric pressure introduces a lower level of damping to the sensor's mechanical structure, resulting in a large static displacement at resonance.
openaire   +1 more source

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