The formation of hydrate plugs in oil and gas pipelines is a serious industrial problem and recently there has been an increased interest in the use of alternative hydrate inhibitors as substitutes for thermodynamic inhibitors like methanol. We show here that antifreeze proteins (AFPs) possess the ability to modify structure II (sII) tetrahydrofuran (THF) hydrate crystal morphologies by adherin...

The formation of hydroquinone (HQ) clathrate and the guest behaviors binary (CH4 + CO2) gas mixtures were investigated by focusing on an application to separate CO2 from landfill gases. Spectroscopic measurements show that at two experimental pressures 20 40 bar, molecules are preferentially captured in HQ clathrates regardless composition. In addition, preferential occupation is observed more ...

The execution of any project type, especially engineering-based projects, is usually time-based, efficiency-driven, and cost-effective. These factors are the deterministic parameters that engineer successful completion. application scheduling models remains best technique for achieving these three to their degrees. Therefore, this study was centered on impact applying model in harvesting methan...

Enzymatic protein hydrolysates of milk are used as a component functional foods intended for children, athletes, and senior citizens. They easy to absorb possess hypoallergenic, antioxidant, antimicrobial, antimutagenic properties. However, the peptides in their composition have bitter taste, which limits use food industry. Functional often fortified with fat-soluble vitamins other hydrophobic ...

Carbon isotopic studies from marine organic matter of the Permian-Triassic Maitai Group, New Zealand, reveal a significant 5Corg shift toward more negative values within the Little Ben Sandstone Formation. These isotopic data chemostratigraphically define the previously debated position of the Permian-Triassic boundary in the Maitai Group. The Permian-Triassic record of the Maitai Group is also...

We report extended x-ray absorption fine-structure EXAFS studies of nand p-type Ba8Ga16Ge30 samples type-I clathrate at the Ga, Ge, and Ba K edges, to probe the local structure, particularly around the Ba atoms located inside 20and 24-atom cages Ba1 and Ba2 sites, respectively composed of Ga/Ge atoms. In agreement with diffraction analysis, we find Ba2 is off center, with a component in the bc ...