in this paper the influence of two different sizes of silica particles (micro-silica and nano-silica) was studied on mechanical properties of sulfur and sulfur composite. to improve the structural properties, sulfur was plasticized using dicyclopentadiene (dcpd) and methyl styrene (mst). plasticized sulfur composite was prepared by melt blending of plasticized sulfur and silica particles. the i...

Diagnostic tools must be developed to optimize the management of calcium (Ca), magnesium (Mg), and sulfur (S) in potato crops. This research aimed develop critical dilution curves for Ca, Mg, S (Solanum tuberosum L. Group Andigenum), establishing harvest indices characterizing nutrient relationships. Four field experiments were established two growth cycles localities Facatativá (high fertility...

The supercritical water-pyrite interface has been studied by ab initio molecular dynamics simulation. Extreme conditions are relevant in the iron-sulfur world (ISW) theory where prebiotic chemical reactions are postulated to occur at the mineral-water interface. We have investigated the properties of this interface under such conditions. We have come to the conclusion that hot-pressurized water...

*Correspondence: Fanglin Chen, Department of Mechanical Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208, USA e-mail: [email protected] Solid oxide fuel cells (SOFCs) can convert chemical energy from the fuel directly to electrical energy with high efficiency and fuel flexibility. Ni-based cermets have been the most widely adopted anode for SOFCs. However, the conv...

Tabas mines in Iran have coal sources which are suitable for use in metallurgy industries as coking coal. But the high sulfur content of this coal imposes severe limitations on its utilization as the sulfur oxide gases evolved from the combustion of high sulfur coals result in acid rains and corrosion of equipments. In this work, attempts have been made to reduce sulfur from high sulfur coa...

Treatment of [Cp*Fe(mu(2)-SR)(3)FeCp*] (1a, R = Et; 1b, R = Me) with CS(2) obtains the insertion products [Cp*Fe(mu(2)-SR)(2)(mu-eta(2)-S(2)CSR)FeCp*] (2a, R = Et; 2b, R = Me) with the retained Fe(2)S(2) subunit in excellent yield. 2a and 2b represent the first examples for the CS(2) activation and incorporation at the diiron-SR bond. [Cp*Fe(mu(2)-SEt)(2)(mu-eta(2)-S(2))FeCp*] (3) is prepared f...

Concrete has a high degree of fire resistance at moderate temperatures. High temperatures, however, cause concrete to lose its stiffness and strength. The effects cooling techniques retrofitting on the strength exposed temperatures have not been synchronized in previous studies. This experimental research aims evaluate effect conditions effectiveness subjected elevated Four types concrete: M 20...

The sulfur content of hot metal in a blast furnace is an important index that reflects the production effects and quality metal. Establishing accurate prediction model for can guide process. In present study, data were collected then preprocessed using box plotting. Cross-validation was used training process to improve generalization performance robustness model. Two models predicting establish...

Lithium-Sulfur (Li-S) batteries are considered as one of the promising candidates for next-generation Li batteries in near future. Although, these batteries are suffering from certain drawbacks such as rapid capacity fading during the charge and discharge process due to the dissolution of polysulfides. In this paper, Sulfur/metal oxide (TiO2 and SiO2) yolk–shell structures have been successfull...

tabas mines in iran have coal sources which are suitable for use in metallurgy industries as coking coal. but the high sulfur content of this coal imposes severe limitations on its utilization as the sulfur oxide gases evolved from the combustion of high sulfur coals result in acid rains and corrosion of equipments. in this work, attempts have been made to reduce sulfur from high sulfur coal of...