Limestone Chemical Looping Combustion process (LCL-C™) patented by Alstom Power Inc. proposes the formation of a CaSO4 oxygen carrier via sulfur retention when supplying Ca-based sorbent together with sulfurous fuels in fuel reactor. In present research work, four sorbents, three limestones and one dolomite different physico-chemical characteristics, have been evaluated as precursors during con...

abstract the objective of current research is to investigate distribution patterns of vegetation types and its relation with environmental factors in southern margin of haj aligholi kavir of damghan. three vegetation types including halecnemum strobilaceum, sedlitzia rosmarinus and artemisia sieberi were studied in marginal arid regions and uplands of the study area. firstly, geographic locatio...

According to the classical view, a plant cell is a metabolic microcosm separated from the medium without by a membrane, the plasmalemma, which acts as a permeability barrier to polar solutes including inorganic ions. Many such solutes nevertheless are taken into the cell. This phenomenon is commonlv thought to be due, not to diffusion of the free ions across the plasmalemma, but to the operatio...

A new force field (MSXX FF) was developed for barium sulfate (BaSO4) to reproduce the experimental properties of BaSO4 crystal (density, lattice energy, compressibility, and vibrational spectrum) and to describe properly the interaction between BaSO4 and water (binding energies and interatomic distances of Ba(H2O)8 and (SO4)(H2O)6 clusters determined from ab initio quantum mechanics calculation...

The question of the importance of using the base cation saturation ratio concept (BCSR) in the nutrition of crops and for making soil test recommendations have been raised many times over the past 100+ years. Recently this issue has surfaced again as a part of programs promoted as “sustainable farming systems” or friendlier to the land or other parts of the environment. As others before them, t...

Bhabha Atomic Research Centre, Mumbai, India designed and developed a telecobalt unit, which was named as Bhabhatron-II. In this paper, the results pertaining to radiation safety of indigenously developed Bhabhatron-II telecobalt unit are reported. The various tests were carried out as per requirements of International Electrotechnical Commission standard and acceptance criteria developed natio...