Abstract The application range of aerogels, especially in the life-science sector, can be extended by utilizing biocompatible polymers such as polylactic acid (PLA). However, low glass transition temperature (Tg) PLA and challenging gelation techniques limit supercritical CO 2 (scCO ) drying thus PLA-aerogel production. aim this work is to overcome challenge provide a better understanding therm...

CO2/impurities cocapture in CCS technology allows reducing the purification costs and avoiding emission of pollutants into atmosphere. The viability transport by pipeline geological storage non-purified flue gas from oxy-fuel combustion biomass other processes, keeping impurities O2 or NO stream along with CO2, is assessed considering thermodynamic hydraulic aspects. For this, we experimentally...

An attempt is made in this work to combine the Lennard–Jones chain model (LJC) of self-diffusion coefficient with the statistical associating fluid theory (SAFT). The real non-spherical associating molecules are modeled as chains of tangent Lennard–Jones segments with association sites. An equation for the self-diffusion coefficient in a polyatomic associating fluid is presented as a product of...

The Scaling Law for the Discrete Kinetic Growth Percolation Model The critical exponent of the total number of finite clusters α is calculated directly without using scaling hypothesis both below and above the percolation threshold pc based on a kinetic growth percolation model in two and three dimensions. Simultaneously, we can calculate other critical exponents β and γ, and show that the scal...

Ultrasound imaging systems (UIS) are essential tools in nondestructive testing (NDT). In general, the quality of images depends on two factors: system hardware features and image reconstruction algorithms. This paper presents a new image reconstruction algorithm for ultrasonic NDT. The algorithm reconstructs images from A-scan signals acquired by an ultrasonic imaging system with a monostatic t...

This work describes the development of a new 3D ultrasonic imaging method that combines different beamforming techniques (Phased Array -PAand Synthetic Aperture Focusing Technique -SAFT-). The proposed methodology uses a silicone mask along the x-axis to produce a wide beam in the array width direction (y-axis). Then, a coherent-spatial composition of several phased array B-scan images is imple...