This paper presents a survey of significant developments in research on the leaching of oil paint films by organic solvents, from the first systematic investigations carried out in the 1950s to more recent “clinical” studies involving the sampling and analysis of paintings during treatment. Key studies are discussed in the context of an improved knowledge of oil paint chemistry that has develop...

In this work, the effect of distilled water, a biodiesel viscosity reducer, and commercial nonionic surfactant on apparent permeability clay-sand cores through analysis contact angle, linear swelling, porous media fluid flow for northern Mexico crude oil was evaluated. The results showed that clay content influences angle values having lower wettability in rocky medium. addition produces moveme...

Finding cost-efficient ways of increasing oil production with a low carbon footprint is the new challenge for petroleum industry that wants to meet net-zero emission goals by 2050. Smart water injection an EOR process increases and delays breakthrough wettability alteration. Seawater smart in chalk reservoirs, being especially effective at high temperatures. Different studies have shown effecti...

Abstract:
 Borago officinalis is highly interesting amongst nutritional and medical source relate to its high composition of some useful phytochemical compound. It great plants with bright blue star-shaped flowers present in most world regions usually known as borage. The analysis showed the presence alkaloids, tannins, flavonoids, phenolic acids, essential oil, vitamins others. Borage cul...

due to the fact that many application processes take place at different temperature, better examining and understanding of swelling properties as a function of temperature is essential for such application. the temperature effect on the swelling properties of commercial polyacrylic acid (paa) hydrogel beads was investigated as a function of time and temperature. gel bead size, swelling equilibr...

The accuracy of joint angle measurement of the hand may be negatively influenced by joint swelling, deformation and other obstacles. We developed an alternative goniometer with clear ergonomic advantages, especially for the measurement of small joints. This new concept of goniometry is described and preliminary results on the reliability of the measurements are presented. The intraclass correla...

introduction: the aim of this study was to assess the effect of low-level laser therapy (lllt) on pain, swelling and maximum mouth opening in patients undergoing third molar surgery. methods: a prospective, randomized double-blind study was undertaken on 44 patients at the dental school, ahvaz jundishapur university of medical sciences, in 2015. a low-level laser was randomly applied on one of ...

Most studies on hydrogel swelling instability have been focused on a constrained boundary condition. In this paper, we studied the mechanical instability of a piece of disc-shaped hydrogel during free swelling. The fast swelling of the gel induces two swelling mismatches; a surface-inner layer mismatch and an annulus-disc mismatch, which lead to the formation of a surface crease pattern and a s...