Search results for "fluid"
showing 10 items of 5513 documents
Two-step cross correlation-based algorithm for motion estimation applied to fertilizer granules' motion during centrifugal spreading
2011
Imaging systems are progressing in both accuracy and ro- bustness, and their use in precision agriculture is increasing accordingly. One application of imaging systems is to understand and control the cen- trifugal fertilizing spreading process. Predicting the spreading pattern on the ground relies on an estimation of the trajectories and velocities of ejected granules. The algorithms proposed to date have shown low ac- curacy, with an error rate of a few pixels. But a more accurate estimation of the motion of the granules can be achieved. Our new two-step cross- correlation-based algorithm is based on the technique used in particle image velocimetry (PIV), which has yielded highly accurate…
Equilibrium fluid-crystal interfacial free energy of bcc-crystallizing aqueous suspensions of polydisperse charged spheres
2015
The interfacial free energy is a central quantity in crystallization from the meta-stable melt. In suspensions of charged colloidal spheres, nucleation and growth kinetics can be accurately measured from optical experiments. In previous work, from this data effective non-equilibrium values for the interfacial free energy between the emerging bcc-nuclei and the adjacent melt in dependence on the chemical potential difference between melt phase and crystal phase were derived using classical nucleation theory. A strictly linear increase of the interfacial free energy was observed as a function of increased meta-stability. Here, we further analyze this data for five aqueous suspensions of charg…
Hong Kong Palermo Fluid Cities
2017
L'articolo affronta il concetto di "fluidità" a partire dall'esperienza dell'International Workshop on Urbanism and Design che si è svolto da gennaio a marzo 2017 a Palermo: circa 80 studenti hanno sperimentato una metodologia di lavoro di collaborative urbanism and design sotto la responsabilità scientifica di Maurizio Carta e Dario Russo (Università di Palermo) e di Manuela Catania e Ero Pagla (Raffles Design Institute di Hong Kong).
Physical properties of aerosol particles measured from a bubbling fluidized bed boiler
2015
Abstract Increased use of biomass and waste fuels, and the consequent corrosion problem have led to an increased need to study and monitor the combustion processes. This study presents an extensive physical characterization of aerosol particles measured from a bubbling fluidized bed boiler with different fuel mixtures and optional ferric sulfate feeding. The fuel mixtures included bark, sludge, peat and solid recovered fuel. Previously, the characterization of the particles analyzed from a fluidized bed reactor has mainly focused on chemical off-line analysis of collected impactor samples, large coarse mode particles or laboratory-scale reactors. In this study, the focus is in the particle …
Regimi di fluidizzazione e dimensioni dei particolati
2007
Trasmissione del calore nei letti fluidizzati con gas sino a medie temperature
2007
Demo 60. Fluidos no newtonianos
2013
Objetivo: Observar el comportamiento de un fluido pseudoplástico y de un fluido dilatante.
Additional file 6 of Fecal microbiota transplantation to maintain remission in Crohn’s disease: a pilot randomized controlled study
2020
Additional file 6. (A) Sorensen similarity index between donor and recipient fecal microbiota 6 weeks after FMT or sham, separating “FMT” failure from “FMT success”.
Additional file 9 of Fecal microbiota transplantation to maintain remission in Crohn’s disease: a pilot randomized controlled study
2020
Additional file 9. Evolution of similarity index (1-unweighted Unifrac) between donor and recipient fecal microbiota in patients with FMT success and FMT failure.
Additional file 1: of Genomic traits of Klebsiella oxytoca DSM 29614, an uncommon metal-nanoparticle producer strain isolated from acid mine drainages
2018
Table S1. List of genomes of K. oxytoca strains used for comparative genomics. (XLSX 10 kb)