Results 11 to 20 of about 6,183,940 (323)
Novel type of phase transition in a system of self-driven particles. [PDF]
Physical Review Letters, 1995 A simple model with a novel type of dynamics is introduced in order to investigate the emergence of self-ordered motion in systems of particles with biologically motivated interaction.
T. Vicsek +4 more
semanticscholar +1 more source
Scientific Reports, 2019 Polycyclic aromatic compounds (PACs) are known due to their mutagenic activity. Among them, 2-nitrobenzanthrone (2-NBA) and 3-nitrobenzanthrone (3-NBA) are considered as two of the most potent mutagens found in atmospheric particles. In the present study
A. G. Santos +2 more
semanticscholar +1 more source
Nanotoxicology: An Emerging Discipline Evolving from Studies of Ultrafine Particles
Environmental Health Perspectives, 2005 Although humans have been exposed to airborne nanosized particles (NSPs; < 100 nm) throughout their evolutionary stages, such exposure has increased dramatically over the last century due to anthropogenic sources.
G. Oberdörster +2 more
semanticscholar +1 more source
Particles and fragments in unused disposable face masks: A microscopic analysis
International Journal of Occupational Safety and Health, 2022 Introduction: In the context of the COVID-19 pandemic, many governments mandated the wearing of face masks by law. New research shows that these masks contain and release microplastics. Methods: In the present work, five samples of surgical masks were
Felix Scholkmann
doaj +1 more source
Individual aerosol particles from biomass burning in southern Africa: 2. Compositions and aging of inorganic particles [PDF]
, 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.
Buseck, Peter R. +3 more
core +1 more source
SSRN Electronic Journal, 2021 We propose an approach of treating information as an intermediate (or medium). The intermediate can be thought of as an information particle. That particle has three main properties.
Minh-Hoang Nguyen, Tam-Tri Le
openaire +2 more sources
Acoustophoretic trapping of particles by bubbles in microfluidics
Frontiers in Physics, 2023 We present in this paper a simple method to produce strategic acoustic particle capture sites in microfluidic channels in a controlled way. Air bubbles are intermittently injected into a micro-capillary with rectangular cross section during a flow motion
Itziar González +3 more
doaj +1 more source
Synthesis method of asymmetric gold particles. [PDF]
, 2017 Asymmetric particles can exhibit unique properties. However, reported synthesis methods for asymmetric particles hinder their application because these methods have a limited scale and lack the ability to afford particles of varied shapes.
Hahm, Eunil +3 more
core +1 more source
One-particle and few-particle billiards [PDF]
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2006 We study the dynamics of one-particle and few-particle billiard systems in containers of various shapes. In few-particle systems, the particles collide elastically both against the boundary and against each other. In the one-particle case, we investigate the formation and destruction of resonance islands in (generalized) mushroom billiards, which are a
Lansel, Steven +2 more
openaire +5 more sources
Proceedings of the National Academy of Sciences, 2012 DNA is increasingly used as an important tool in programming the self-assembly of micrometer- and nanometer-scale particles. This is largely due to the highly specific thermoreversible interaction of cDNA strands, which, when placed on different particles, have been used to bind precise pairs in aggregates and crystals.
Wu, K.-T. +6 more
openaire +2 more sources