A transverse optical mode was observed in a one-dimensional Yukawa chain. Charged particles, suspended in a strongly coupled dusty plasma, were arranged in a 1D periodic structure. Particle displacement in the direction perpendicular to the chain was restored by the confining potential. The dispersion relation of phonons was measured, verifying that the optical mode has negative dispersion, wit...

This paper concentrates on the task of evaluating the air quality and Total Suspended Particles (TSP) of rice husk/dust in a particular rice mill factory located in Northern Kedah, Malaysia. The utmost objective of this paper is to develop a low cost air particle sensor to obtain the level of air quality inside the rice mill factory and comparing it with the guidelines provided by Departmental ...

Resonant Raman spectroscopy of single carbon nanotubes suspended across trenches displays red-shifts of up to 30 meV of the electronic transition energies as a function of the surrounding dielectric environment. We develop a simple scaling relationship between the exciton binding energy and the external dielectric function and thus quantify the effect of screening. Our results imply that the un...

Narrow angle light scattering measurements were made for various sizes of spherical particles suspended in water. These were compared to calculated theoretical scattering values as derived from the theory of Mie (1908). Through measurements with different particle concentrations at angles between 0.2 degrees and 0.7 degrees the effect of the unscattered main beam light was removed. Results agre...

In this contribution, mathematical model for the description of solvent evaporation and noble metal crystallization in a porous medium is presented. The methodology is based on the volume-of-fluid method and the aim is validation of the model by comparing the numerical simulation results with analytical solutions for evaporation from a single pore and for particle growth and Ostwald ripening of...

We consider phase separation in a nonequilibrium Bose gas with an attractive interaction between particles. Using numerical integrations on a lattice, we show that the system evolves into a state that contains drops of a Bose-Einstein condensate suspended in uncondensed gas. When the initial gas is sufficiently rarefied, the rate of formation of this quantum dew scales with the initial density ...

All trademarks are the property of their respective owners. TI Designs This TI Design provides an analog front-end (AFE) solution for measuring PM2.5 and PM10 particulate matter (PM). The design detects the light scattered by particles suspended in air. A sample software algorithm is provided to convert the analog output of the design into a particle size and concentration measurement. Test res...

I. ABSTRACT A practical 1 imitation ·of the application of Smoluchowski 1 s classical estimate for the collision probability of two diffusing spherical particles in Brownian motion is the non-consideration of interparticle forces. For suspended particles in water such forces can arise from the disturbance the particle causes in the fluid {hydrodynamic forces), from the cloud of ions which surro...

A growing body of experimental evidence suggests that the deposition behavior of microbial particles (e.g., bacteria and viruses) is inconsistent with the classical colloid filtration theory (CFT). Well-controlled laboratory-scale column deposition experiments were conducted with uniform model particles and collectors to obtain insight into the mechanisms that give rise to the diverging deposit...

Hunt (1982) and Friedlander (1960a, b) used dimensional analysis to derive expressions for the steady-state particle-size distribution in aerosols and hydrosols. Their results were supported by the Monte Carlo simulation of a non -interacting coagulating population of suspended spherical particles developed by Pearson, V alioulis & List (1984). Here the realism of the Monte Carlo simulation is ...