Results 21 to 30 of about 3,925,714 (336)

Shear-induced sedimentation in yield stress fluids [PDF]

, 2012
Stability of coarse particles against gravity is an important issue in dense suspensions (fresh concrete, foodstuff, etc.). On the one hand, it is known that they are stable at rest when the interstitial paste has a high enough yield stress; on the other
Bertrand, François, Chateau, Xavier, Coussot, Philippe, Ovarlez, Guillaume   +3 more
core   +5 more sources

Petroleum products in wastewater and their properties [PDF]

BIO Web of Conferences
Water bodies are polluted by oil and petroleum products from various sources. The primary sources are navigation, accidents on ships and coastal areas, industrial wastewater discharges, surface wastewater from settlements, and transportation crossings of
Alekseev Evgeny Valerevich, Bukina Olga Valentinovna   +1 more
doaj   +1 more source

Viscoelastic gels of guar and xanthan gum mixtures provide long-term stabilization of iron micro- and nanoparticles [PDF]

, 2012
Iron micro- and nanoparticles used for groundwater remediation and medical applications are prone to fast aggregation and sedimentation. Diluted single biopolymer water solutions of guar gum (GG) or xanthan gum (XG) can stabilize these particles for few ...
A Molfetta Di, A Tiraferri, AB Rodd, C Noubactep, D Kim, D Risica, Dingqi Xue, DL Huber, E Choppe, E Dalla Vecchia, E Dalla Vecchia, F García-Ochoa, FS Freyria, G Schramm, ICM Dea, ICM Dea, IT Norton, J Amundarain, JA Casas, K Hyun, KJ Cantrell, L Zhong, M Iijima, M Milas, M Oostrom, MJ Truex, ML Williams, PHT Uhlherr, PJ Flory, Rajandrea Sethi, RHW Wientjes, S Comba, S Comba, T Phenrat, TG Mezger, V Zolla, VB Pai, W Zhang, X Li, Y Qiang, Z Xiu   +40 more
core   +1 more source

The Synthesis and Study of Metal Powder Stabilizer Properties in Lubrication Compositions

Инженерные технологии и системы, 2019
Introduction. Modern manufacturing technologies of powder materials allow obtaining particles sized 0.1–0.5 μm. Powders with such dispersion have a very high surface energy and, consequently, unique properties. Powders with a given size can be used as an
Valentin V. Safonov, Valery V. Ostrikov, Vadim V. Venskaytis, Konstantin V. Safonov, Alexandr S. Azarov   +4 more
doaj   +1 more source

Ultra-Lightweight Cement Slurry to Seal Wellbore of Poor Wellbore Stability

Energies, 2020
The article presents the recipe for ultra-lightweight cement slurry for wellbore sealing. In ordinary lightweight cement slurries, the addition of microspheres and a large amount of water are used to maintain rheological parameters.
Marcin Kremieniewski
doaj   +1 more source

Slow sedimentation and deformability of charged lipid vesicles [PDF]

, 2013
The study of vesicles in suspension is important to understand the complicated dynamics exhibited by cells in vivo and in vitro. We developed a computer simulation based on the boundary-integral method to model the three dimensional gravity-driven ...
Gay, Guillaume, Gonzalez-Mancera, Andres, Leidy, Chad, Suarez, Ivan Rey, Tellez, Gabriel   +4 more
core   +3 more sources

Fe3O4 nanoparticles anchoring onto graphitic carbon nitrogen nanosheets for enhanced magneto-stimuli responses and sedimentation stability

Journal of Materials Research and Technology, 2023
A kind of novel two-dimensional magnetic nanocomposites were successfully fabricated via the immobilization of Fe3O4 nanoparticles onto the surface of graphitic carbon nitrogen (g-C3N4) nanosheets by a facile liquid exfoliated method and subsequent ...
Guangshuo Wang, Fangfang Si, Yingying Ma, Yanming Wang, Zhixiao Zhang, Ruitao Yu, Xiaoliang Zhang, Guoqing Chang, Jingbo Mu, Hongwei Che, Ping Li, Dong Li   +11 more
doaj   +1 more source

INVESTIGATION OF THE PROPERTIES OF THE SUSPENSIONS FOR NON-STICK COATINGS FOR FOUNDRY

Литьë и металлургия, 2015
The research aimed at figuring out dependence of the technological properties (density, thickness of the coating, reduced strength and sedimentation stability) of the suspensions for nonstick coatings on the for activation time powder quartz graphite ...
T. Gil’manshina, S. Lytkina, T. Bogdanova, S. Hudonogov, A. Kosovich, E. Partyko   +5 more
doaj   +1 more source

Technological evaluation and determination of the traits stability in breeding materials in the early generations

Растениевъдни науки, 2023
The experiment was carried out on an experimental field of Institute of Plant Genetic Resources "K. Malkov", Sadovo during the period 2016 - 2018.
Zlatina Uhr, Teodora Angelova, Evgeniy Dimitrov, Rangel Dragov   +3 more
doaj   +1 more source

Slope stability in slightly fissured claystones and marls [PDF]

, 2015
The final publication is available at Springer via http://dx.doi.org/10.1007/s10346-014-0526-5The paper deals with the behavior of some characteristic soft rocks found in the Iberian Peninsula.
Alonso Pérez de Agreda, Eduardo, Pinyol Puigmartí, Núria Mercè   +1 more
core   +2 more sources