Search results for "SUSPENSION"
showing 10 items of 262 documents
Optical properties of TiO2 suspensions: Influence of pH and powder concentration on mean particle size
2007
WOS: 000250584100025
Solid–Liquid Suspensions in Top-Covered Unbaffled Vessels: Influence of Particle Size, Liquid Viscosity, Impeller Size, and Clearance
2014
Particle suspension in liquids is a unit operation commonly encountered in the process industry. Although it is usually carried out in baffled stirred tanks, there are some specific applications where the presence of baffles may be undesirable. In the present work solid-liquid suspensions are investigated in a radially stirred unbaffled tank provided with a top cover. The minimum impeller speed at which all solid particles get suspended (Njs) and the relevant power requirements (Pjs) are assessed. The dependence of these two parameters on physical properties (liquid viscosity, particle concentration, and size) and system geometrical configurations (impeller diameter and clearance) is invest…
Yield behavior of magnetorheological suspensions
2003
The rheology of suspensions containing magnetic particles of micrometer size is strongly modified by the application of a magnetic field. We first describe a model experiment where the suspension is made of spheres of millimeter size and we show that the experimental dependence of the yield stress is well predicted by a non-affine model where the chains of particles break in the middle. Then we compare these predictions with some experimental results obtained on suspensions of carbonyl iron; it is shown that this model does not apply in this case. We propose a mechanism where after some friction on the walls the aggregates begin to rotate and break at a strain smaller than unity, due to the…
Methods to Compute Pressure and Wall Tension in Fluids containing Hard Particles
2011
Colloidal systems are often modelled as fluids of hard particles (possibly with an additional soft attraction, e.g. caused by polymers also contained in the suspension). in simulations of such systems, the virial theorem cannot be straightforwardly applied to obtain the components of the pressure tensor. In systems confined by walls, it is hence also not straightforward to extract the excess energy due to the wall (the "wall tension") from the pressure tensor anisotropy. A comparative evaluation of several methods to circumvent this problem is presented, using as examples fluids of hard spheres and the Asakura-Oosawa model of colloid-polymer mixtures with a size ratio $q=0.15$ (for which th…
Yiyun Li’s A Thousand Years of Good Prayers and Murakami Haruki’s Men Without Women: Rarefaction and Suspension of Time 时间的稀薄及悬浮：李翊云的 A Thousand Year…
2022
This paper illustrates resonances of style in the two works, "A Thousand Years of Good Prayers" by the Chinese woman writer Yiyun Li and "Men Without Women" by the Japanese author Murakami Haruki, that present some similarities.
Porous architecture and thermal properties of thermal barrier coatings deposited by suspension plasma spray
2020
Abstract Besides the intrinsic low heat transfer capability of material, the thermal insulation property of thermal barrier coatings (TBCs) also relies on their microstructures. For better understanding the relationship between process parameters, porous architecture, and thermal properties of coatings, YSZ coatings were firstly manufactured by suspension plasma spray (SPS). Afterwards their total porosities were characterized by using the technique of X-ray transmission, the nano/submicro pores in those coatings were detected with Ultra-Small Angle X-ray Scattering (USAXS), and the thermal properties of coatings were measured using the laser flash method. The results indicated that: i) the…
Impact de l'épandage des boues sur le phosphore dissous et particulaire des écoulements de surface
2003
Abstract The aim of this study was to assess the effect of land application of sewage sludge on phosphorus (P) losses during intense rainfall. Three rainfall simulations (40 mm h−1 of 30 min duration) were conducted on a field amended with sewage sludge. The overland flow water (OFW) was monitored and sampled every minute. The suspended solid, the dissolved and total phosphorus (respectively SS, TP and DP) concentrations were analysed. The forms of particulate bound P (PP) were investigated. Several results stem from this experiment: (a) sludge application induced a large increase in the DP content of the OFW; the concentrations obtained (0.15–0.57 mg l−1) were shown to result from desorpti…
Interdiction et interruption des poursuites individuelles. Interruption des instances déjà engagées. Absence de suspension du délai de l'action
2016
International audience; (Civ. 3e, 8 octobre 2015, n° 14-18.881, arrêt n° 1031 FS-P+B, Sté Adam c/ Sté Boucherie de la République et a., D. 2015. 2071)
Interdiction des poursuites individuelles. Action d'un crédirentier en résiliation du contrat de vente en viager pour défaut de paiement des arrérage…
2019
International audience; (Com. 4 juill. 2018, n° 17-10.208, F-D, Mme Catherine D. c/ Sté CIC Est et a.)
Cautionnement. Loi du 10 juin 1994, Application dans le temps, Solutions diverses
1997
International audience; (CA Angers, 27 févr. 1995, Pineau c/ SA Le Crédit industriel de l'Ouest ; CA Paris, 17 mars 1995, Uzan c/ SA Factofrance Heller et autre ; T. com. Menton 4 avr. 1996, Société marseillaise de Crédit c/ Baldoni ; CA Paris, 7 mai 1996, Mme Levaast c/ SA CCC ; T. com. Nice, 5 juin 1996, SME c/ Colin)