Results 31 to 40 of about 441,291 (286)

Controlled porosity alumina structures for ultra-precision hydrostatic journal bearings [PDF]

open access: yes, 2010
A series of fine-grade alumina powders has been used in combination with maize starch granules to produce porous structures for porous hydrostatic journal- bearing applications. A comprehensive series of tests was conducted to characterize porosity in
John Corbett   +6 more
core   +1 more source

The Effect of Different Levels of Superabsorbent A300 in Some Physics and Hydraulic Properties of a Silty Loam Soil [PDF]

open access: yesعلوم و مهندسی آبیاری, 2014
The need for water storage is steadily growing because of increasing water demands due to growing population in arid and semiarid areas such as Iran where droughts occur in succession.
Kobra Kheiri, Saeid Boroomandnasab
doaj  

Influence of PA66 fiber content on porosity of porous aluminum based ceramic core

open access: yesCailiao gongcheng, 2020
In order to solve the problem that alumina based ceramic core is not easy to remove core, a certain amount of PA66 fiber was added as pore forming material to prepare porous aluminum based ceramic core by hot pressing. The influence of PA66 fiber content
LU Gang   +4 more
doaj   +1 more source

Microgravity Effect on Microstructural Development of Tri-calcium Silicate (C3S) Paste

open access: yesFrontiers in Materials, 2019
For the first time, tricalcium silicate (C3S) and an aqueous solution were mixed and allowed to hydrate in the microgravity environment aboard the International Space Station (ISS).
Juliana Moraes Neves   +4 more
doaj   +1 more source

Multiscale Geoelectrical Properties of the Rochechouart Impact Structure, France

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The 205 Ma Rochechouart impact structure (France) is characterized by various impactite formations overlying the Hercynian crystalline basement. New constraints from downhole logging and surface electrical resistivity measurements along >100 m long ...
Yoann Quesnel   +6 more
doaj   +1 more source

Mathematical Model of the Deaeration of Finely Dispersed Solid Media in a Spherical Matrix of a Roller-Type Apparatus

open access: yesFrontiers in Energy Research, 2021
The additional operation of deaeration (compaction) of powders affects the quality of many products of chemical industries, the conditions for their delivery. Otherwise, energy consumption increases significantly.
Anna Kapranova   +3 more
doaj   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

open access: yesFEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová   +2 more
wiley   +1 more source

The characterisation and modelling of porosity formation in electron beam welded titanium alloys [PDF]

open access: yes, 2012
This thesis is concerned with the porosity formation mechanism during electron beam welding of titanium-based alloys. During the welding of titanium alloys for aerospace engine applications, porosity is occasionally found in the solidified welds.
Huang, Jianglin
core   +7 more sources

Probabilistic assessment of the permeability of the deposits of the upper part of the Tyumen suite of the Shaim oil and gas region

open access: yesRUDN Journal of Engineering Research, 2022
The work is devoted to the problem of increasing the reliability of the calculation of the permeability cube in the construction of a threedimensional geological model.
Pavel N. Strakhov   +1 more
doaj   +1 more source

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

open access: yesFEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain   +11 more
wiley   +1 more source

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