Having a prediction model for the geopolymer concrete (GPC) compressive strength gives Engineers an edge in project quality and cost control. Compressive of is dependent on various components that formed concrete, curing regime. This paper outcome review variables (components relationships) influence (GPC). The identified from literature are; Concentration (Molarity) Hydroxide solution, Alkalin...

This work presents a novel way to examine the characteristics of fly ash, copper slag (CPS) along with addition Ultrafine Ground Granulated Blast Furnace Slag (UFGGBFS) based Geopolymer Concrete (GPC) for various molarities (10M, 12M and 14M). In GPC, ash was replaced UFGGBFS (5 %, 10 % 15 %) used as fine aggregate. Mechanical Characterization such split tensile, flexural strength, workability ...

Abstract This research investigates the influence of sodium hydroxide (SH) molarity on fly ash-slag-based geopolymer mortar’s workability, setting time, and compressive strength. The SH varies between 1M, 2M, 4M, 6M, 8M, 10M. mixture was proportioned to contain 30% slag as a substitution for ash, with alkaline activator binder (Al/Bi) ratio 0.45 silicate (SS/SH) 1.5. results showed that at rang...

A continuous spectrophotometric method for measuring serum alkaline phosphatase activity is described. The effects of temperature, pH, substrate concentration, type and molarity of the buffer, sample size, cofactors, and inhibitors on the enzymatic hydrolysis of p-nitrophenyl phosphate were studied. The optimal conditions for assay of serum alkaline phosphatase at 300 were found to be 0.75 M 2-...

α- and β-cyclodextrins have been used as scaffolds for the synthesis of six- and seven-legged templates by functionalizing every primary CH2OH with a 4-pyridyl moiety. Although these templates are flexible, they are very effective for directing the synthesis of macrocyclic porphyrin oligomers consisting of six or seven porphyrin units. The transfer of chirality from the cyclodextrin templates t...

A cell-bound bacteriocin was extracted from a Bacteroides fragilis BF-11 strain by treating the cells with a low-molarity buffer (0.01 M Tris-hydrochloride, pH 8.0). Sucrose osmotic shock experiments and ultrasonic lysis of whole cells indicated that the majority of the bacteriocin was located at the cell surface. Culture supernatants contained no significant bacteriocin activity. The bacterioc...

A novel DNA-based hybrid catalyst comprised of salmon testes DNA and an iron(III) complex of a cationic meso-tetrakis(N-alkylpyridyl)porphyrin was developed. When the N-methyl substituents were placed at the ortho position with respect to the porphyrin ring, high reactivity in catalytic carbene-transfer reactions was observed under mild conditions, as demonstrated in the catalytic enantioselect...

The dentate gyrus is a prominent source of gamma frequency activity in the hippocampal formation in vivo. Here we show that transient epochs of gamma frequency network activity (67 +/- 12 Hz) can be generated in the dentate gyrus of rat hippocampal slices, following brief pressure ejections of a high-molarity potassium solution onto the molecular layer. Oscillatory activity remains synchronized...