BACKGROUND Alkali stress is an important agricultural contaminant and has complex effects on plant metabolism. The aim of this study was to investigate whether the alkali stress has different effects on the growth, ion balance, and nitrogen metabolism in old and young leaves of rice plants, and to compare functions of both organs in alkali tolerance. METHODOLOGY/PRINCIPAL FINDINGS The results...

Waste activated sludge is slower to biodegrade under anaerobic conditions than is primary sludge due to the glycan strands present in microbial cell walls. The use of pre-treatments may help to disrupt cell membranes and improve waste activated sludge biodegradability. In the present study, the effect of ultrasound, low-temperature thermal and alkali pre-treatments on the rheology, hygienizatio...

Objectives: To determine if Thalidomide has a similar effect in an alkali burn model of corneal neovascularization, we evaluated the effect of Thalidomide on corneal angiogenesis after alkali corneal burns in rabbits. Methods: Twelve rabbits received alkali burns to one cornea. Post injury, four rabbits received oral Thalidomide, 200 mg/kg/day and eight rabbits received placebo (powdered sugar)...

In the last decades, gypsum-bearing industrial wastes become one of common globally produced and domestic that are currently recycled further utilized. this study, waste citrogypsum was used as a Ca2+-containing component to modify properties alkali-activated cement (AAC) based on granulated blast-furnace slag (GBFS). Citrogypsum in different AAC mixes activated with three alkaline components: ...

Nickel hexacyanoferrate (NiHCFe) is an attractive cathode material in both aqueous and organic electrolytes due to a low-cost synthesis using earth-abundant precursors and also due to its open framework, Prussian blue-like crystal structure that enables ultra-long cycle life, high energy efficiency, and high power capability. Herein, we explored the effect of different alkali ions on the insert...

Life cycle assessment (LCA) methodology was applied to assess five locally developed mix designs for a 20 m low-height noise barrier (LHNB) categorized as: precast Portland cement concrete (S0-baseline scenario), two geopolymer composites (S1; S2), and additive-manufactured (S3; S4). The objective of the study is carry out LCA designs, identify environmental hotspots evaluate influence durabili...

the present study was carried out to investigate the effect of various refining processes’ conditions on conjugated dienes in soybean oil. conjugated dienes contents of soybean oil were found to undergo reduction in neutralization and bleaching steps while being increased in deodorization. it was observed that alkali refining (neutralization) through 12 and 14 °bé, bleaching with either acid ac...

The oxygen isotope fractionation factors between the hydration complex of the alkali ions in the gas phase and a free water molecule have been computed on the basis of the energy surfaces calculated by Kistenmacher, Popkie and Clementi for a water molecule in the field of an alkali ion. For comparison with recently measured oxygen isotope fractionation factors in aqueous alkali halide solutions...

This paper presents the benefits of PVA fibers in improving mechanical properties class F fly-ash-based geopolymer concrete. The activator used was 8M sodium hydroxide (NaOH) and silicate (Na2SiO3), with a mass ratio Na2SiO3 to NaOH varied from 1.5 2.5. Cylindrical specimens diameter 100 mm height 200 were prepared for strength tests. geopolymers fixed at 0.4%, 0.6%, 0.8% by total volume. Some ...

We present a detailed theoretical analysis of the noble-gas nuclear spin relaxation due to the anisotropic magnetic-dipole hyperfine interaction between the noble-gas nucleus and alkali-metal valence electron vis à vis the already well-understood (spin-conserving) isotropic magnetic-dipole hyperfine interaction in alkali-metal–noble-gas systems. We find that, for all pairs in which the noblegas...