Results 11 to 20 of about 173,448 (288)

Characterization of Magnetite–Silica Magnetic Fluids by Laser Scattering

open access: yesApplied Sciences, 2020
The paper is concerned with structural, morphological and magnetic properties of magnetite-silica magnetic fluids. The granulometric composition of the magnetic fluids was investigated by scanning and transmission electron microscopy, the phase ...
Elena N. Velichko   +4 more
doaj   +1 more source

Development of spacer fluids and cement slurries compositions for lining of wells at high temperatures

open access: yesЗаписки Горного института, 2020
Article is devoted to creation of new compositions of process solutions for lining of directional wells at high temperatures. Developed compositions provide high durability characteristics of cement stone.
Seyyed Shahab TABATABAEE MORADI   +2 more
doaj   +1 more source

Evaluation of the Physical Stability of Zinc Oxide Suspensions Containing Sodium Poly-(acrylate) and Sodium Dodecylsulfate. [PDF]

open access: yes, 2011
The physical stability of zinc oxide (ZnO) aqueous suspensions has been monitored during two months by different methods of investigation. The suspensions were formulated with ZnO at a fixed concentration (5 wt%), sodium poly-(acrylate), as a viscosifier,
Ahmed-Zaïd, Toudert   +5 more
core   +1 more source

Petroleum products in wastewater and their properties [PDF]

open access: yesBIO 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   +1 more
doaj   +1 more source

An initial event in insect innate immune response: structural and biological studies of interactions between β-1,3-glucan and the N-terminal domain of β-1,3-glucan recognition protein [PDF]

open access: yes, 2013
In response to invading microorganisms, insect β-1,3-glucan recognition protein (βGRP), a soluble receptor in the hemolymph, binds to the surfaces of bacteria and fungi and activates serine protease cascades that promote destruction of pathogens by means
Amzel L. M.   +45 more
core   +2 more sources

Using mathematical models to assess sediment stability [PDF]

open access: yesIntegrated Environmental Assessment and Management, 2006
Abstract The application of mathematical models to a sediment stability study is presented, with an emphasis on using models as a component of an effort to develop, refine, and potentially validate a conceptual site model (CSM) for sediment transport at a study site.
openaire   +2 more sources

Hanford contaminated sediment stabilization studies [PDF]

open access: yes, 1977
The major problems with radionuclide waste sites in the 200 Area plateau on the Hanford Reservation is the high degree of toxicity or Hazard Index (HI). Transport Factors (TF) are fortunately low but can increase with time and certainly with episodic events such as explosions or earthquakes.
Bruns, L.E., Key, K.T., Higley, B.A.
openaire   +2 more sources

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

open access: yesИнженерные 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   +4 more
doaj   +1 more source

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

open access: yesJournal 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   +11 more
doaj   +1 more source

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

open access: yes, 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   +40 more
core   +1 more source

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