International Journal of Advanced Research in

Science and Technology (IJARST)


Volume 7 - Issue 1 | 2018


01. GC- MS analysis of bioactive components of Chloroform and Methanolic leaf extracts of Justicia glauca.

Gayatri Devi B*, Srinivasulu S and Hemalatha K.P.J

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Highlights

The phytochemical constituents of Chloroform and methanol extracts of Justicia glauca leaf were analyzed using gas chromatography-mass spectrometry method. The chloroform and methanol leaf extracts of Justicia glauca were prepared by soxhlet extraction method and concentrated by using rotary evaporator. The concentrated chloroform and methanol extracts were subjected to phytochemical analysis using GC-MS. GC-MS analysis showed the presence of five and six phytocompounds respectively. The phytoconstituents of chloroform extracts are Hexadecanoic acid methyl ester, Nonadecanoic acid 10- methyl, methyl ester, Stearic acid methyl ester, Methyl Oleate, Z-8,10-dodecadienal.

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02. An experimental analysis over partial replacement of coarse aggregate by Ceramic Waste.

Balgopal Guru*, Heena Pratihar, Archana Tripathy and Hashyamayee Behera

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Highlights

In both developed and undeveloped nations, it has been a specialized test to configuration minimal effort and strong bond concrete. The fundamental focal point of this exploration is to examine the strength of concrete with ceramic waste. The ceramic industry inevitably generates wastes, irrespective of the improvements introduced in manufacturing processes. In the ceramic industry, about 15%-30% creation goes as waste. In this examination contemplate the coarse aggregate has been supplanted by ceramic waste total appropriately in the scope of 0%, 5%,10%,15%, 20% by weight for M-20 review concrete. Compressive Strength test was completed on solidified solid 3D squares after 3rd, 7th, 14th and 28th day of curing in water. In this test the conduct of ceramic mixed in concrete as a coarse aggregate in enhancing its compressive quality has been contemplated. For this examination 3 cubes each for 0%, 5%,10%, 15% and 20% separately is utilized and the compressive quality following 3rd, 7th, 14th and 28th day was dictated by taking 3 blocks of every rate.

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03. Performance Analysis of Static Carry Skip Adder Using 22nm Strained Silicon CMOS Technology.

D. Anisha Esther Annabai*, E. Hemalatha, C . Divya, J. Ajayan, A. MuthuKumar and T.Ravichandran

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Highlights

A 256-bit adder was designed using 22nm Strained Silicon CMOS technology which is attractive for future VLSI and ULSI application. Carry Skip adders are widely used in cascaded circuit connection and it also improves the delay of the circuit compared to other adders. In this paper, the performance and an analysis on the delay, power, space and speed of strained CMOS technology based static carry skip adder will be presented. The circuits are simulated using 22-nm high performance CMOS with a low supply voltage of 0.8V using HSPICE software tool. The performance of the adder circuit is analyzed by measuring the key parameters of the circuit such as speed, power and also the effect of temperature on circuit performance is also analyzed.

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04. Redox Reactions of Cobalt (III) Complexes of α –Hydroxy Acids by Pyridinium Bromo Chromate in the presence of Surfactants.

M.V. Raghupathi Raju*, K. Anji reddy, N. Vijaya kumar and K.Subramani

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Highlights

The Kinetics of one electron transfer route seems to be un available for Pyridinium bromo chromate with cobalt (III) bound and unbound complexes of α –hydroxy acids in micellar medium pyridinium bromo chromate oxidises cobalt (III) bound and unbound α –hydroxy acids. It rules out the synchronous C-C bond fission and electron transfer to Cobalt (III) centre. Oxidation of above complexes increases with increase of temperature with increase in micellar concentration. An increase in the rate is observed. The added dimethyl dioctadecyl ammonium chloride (DDAC) increases the rate of oxidation of a reaction much more than Ammonium lauryl sulphate (ALS). Similar trends observed in Lactato and Glycolato Cobalt (III) Complexes.

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