RHEOLOGICAL PROPERTIES OF THE IRRIGATION LIQUID IN THE CLEANING PROCESS OF GAS EMISSIONS

2016 ◽  
pp. 283-298
Keyword(s):  
Rheological Properties ◽  
Cleaning Process ◽  
Gas Emissions

scholarly journals Combined ground and aerial measurements resolve vent-specific gas fluxes from a multi-vent volcano

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
T. D. Pering ◽  
E. J. Liu ◽  
K. Wood ◽  
T. C. Wilkes ◽  
A. Aiuppa ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Emission Rate ◽  
Methodological Challenge ◽  
Stromboli Volcano ◽  
Gas Emissions ◽  
Specific Approach ◽  
Novel Approach ◽  
Gas Fluxes ◽  
Monitoring Applications ◽  
Strombolian Explosions

Abstract Volcanoes with multiple summit vents present a methodological challenge for determining vent-specific gas emissions. Here, using a novel approach combining multiple ultraviolet cameras with synchronous aerial measurements, we calculate vent-specific gas compositions and fluxes for Stromboli volcano. Emissions from vent areas are spatially heterogeneous in composition and emission rate, with the central vent area dominating passive emissions, despite exhibiting the least explosive behaviour. Vents exhibiting Strombolian explosions emit low to negligible passive fluxes and are CO2-dominated, even during passive degassing. We propose a model for the conduit system based on contrasting rheological properties between vent areas. Our methodology has advantages for resolving contrasting outgassing dynamics given that measured bulk plume compositions are often intermediate between those of the distinct vent areas. We therefore emphasise the need for a vent-specific approach at multi-vent volcanoes and suggest that our approach could provide a transformative advance in volcano monitoring applications.

Effect of Solvent Cleaning on Thermo-Mechanical and Rheological Properties of Plastic Wastes from Municipal Solid Waste (MSW)

2020 ◽  
Vol 856 ◽  
pp. 230-236
Author(s):  
Laongdaw Techawinyutham ◽  
Wiroj Techawinyutham
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Rheological Properties ◽  
Loss Modulus ◽  
Tensile Modulus ◽  
Cleaning Process ◽  
Maximum Value ◽  
Plastic Wastes ◽  
Thermal Stability Of ◽  
Better Than

The plastics from municipal solid waste (MSW) were modified to improve cleanness for adding value. The stir and sonication were performed as cleaning processes. Xylene, tetrachloroethylene, chloroform, acetone and toluene were used as solvent cleaning. The most suitable cleaning process was sonication method with cleaning time of 5 min and the appropriate solvent was xylene for washing the plastic wastes for further study in terms of thermo-mechanical and rheological properties. The cleaning process was successful as evidence in thermogravimetric analysis (TGA) results. The properties of new plastics, cleaned plastic wastes and plastic wastes were compared and analyzed. Tensile strength of the specimens from plastic wastes was slightly decreased; however, elongation and impact strength of cleaned plastic wastes and plastic wastes sharply dropped as compared to new plastics. Tensile modulus of cleaned plastic wastes was slightly better than that of new plastics. Thermal stability of plastic waste was slightly lower than that of new plastic. Shear storage modulus (Gʹ), shear loss modulus (Gʺ) and shear viscosity (η) of new plastics showed the maximum value; on the other hand, those properties of cleaned plastic wastes and plastic wastes were similar. The cleaning method with solvent did not destroy thermo-mechanical and rheological properties of the cleaned plastic wastes.

Using the alveograph in developing requirements for the quality of flour for wafer sheet production

2020 ◽  
Vol 29 (12) ◽  
pp. 52-58
Author(s):  
E.P. Meleshkina ◽  
◽  
S.N. Kolomiets ◽  
A.S. Cheskidova ◽  
◽  
...  
Keyword(s):  
Rheological Properties ◽  
Quality Indicators ◽  
Wheat Flour ◽  
Mathematical Statistics ◽  
Intended Purpose ◽  
The Future ◽  
Relationship Of ◽  
The Relationship

Objectively and reliably determined indicators of rheological properties of the dough were identified using the alveograph device to create a system of classifications of wheat and flour from it for the intended purpose in the future. The analysis of the relationship of standardized quality indicators, as well as newly developed indicators for identifying them, differentiating the quality of wheat flour for the intended purpose, i.e. for finished products. To do this, we use mathematical statistics methods.

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