Experimental studies on extraction of valuable fuels from karanja and neem seed by pyrolysis

Today we see everywhere that oil has become inherent part of our daily life. Every activity is dependent on the requirement of fuels be it directly or indirectly. The demand of fuels is increasing day by day. Import dependence for oil in India which is about 70 per cent, is likely to increase further. As we all know that the petroleum resources are limited and are non-renewable in nature, we must start to think about the alternatives as we are likely to run out of the petroleum resources in few decades or so. Stress must be given to production of energy from renewable sources as they are biodegradable and non-toxic. Here an attempt has made to study the feasibility of production of valuable fuels from natural but non edible seeds such as karanja and neem seeds by the method of pyrolysis. Here the production of the fuel can serve purpose of alternative fuels as biomass pyrolysis oil has potential to be used as fuel oil or its substitute

Synthesis, Crystal Structural Characterization and Biological Properties of Thiosemicarbazones of Schiff Bases Derived from 4-Acyl-2-pyrazoline-5-one

A novel synthesis, single crystal and biological activity of 4-acylthiosemicarbazone-3-methyl-1-(4`-methylphenyl)-2-pyrazolin-5-one by condensation of 4-acyl-3-methyl-1-(4`-methylphenyl)-2-pyrazolin-5-one with thiosemicarbazide was carried out. The compounds were characterized on the basis of elemental analysis, IR, 1H NMR, Mass, DSC and 13C NMR spectral data. The compounds were tested for their antibacterial activity against various gram +ve and -ve bacteria. The results were compared with the marketed drugs. The crystal structure was determined by single x-ray diffraction. 4-Acetyl thiosemicarbazone-3-methyl-1-(4`-methylphenyl)-2-pyrazolin-5-one(AcPTMP-ths) crystallizes in the monoclinic system, space group P21/n with a=6.0828(7)Å, b=29.547(4)Å, c=7.9101(15)Å, α=90°, γ=95.602(15)°, γ=90°, V=1414.9(4) Å3, Z=4, Dc=1.429 mg/m3 and 4-Propionylthiosemicarbazone-3-methyl-1-(4`-methylphenyl)-2-pyrazolin-5-one (PropPTMP-ths) crystallizes in the monoclinic system, space group P21/c with a=13.5622(10)Å, b=13.3671(12)Å, c=22.151(2)Å, α=90°, β=93.13(7)°, γ=90°, V=4010.1(6) Å3, Z=8, Dc=1.310 mg/m3. The compounds were screened for antibacterial properties and exhibited potential activity

Microstructure and work hardening behavior of Al–Cu–Li alloy (AA2198) in different temper conditions

In this paper, Al–Cu–Li alloy (AA2198) sheets have been imparted under different temper conditions to obtain different precipitate morphologies. The tensile testing of the samples in the solution treated, peak-aged, and over-aged conditions at ambient and cryogenic temperatures has been carried out to compare the hardening behavior. The strain hardening in the alloy is a strong function of the nature of obstacles present in individual temper conditions and extrinsic factors such as temperature. The decreased strain hardening capacity of peak-aged and over-aged samples is manifested in terms of a considerable decrease in uniform elongation. The effect of temperature is mainly manifested in terms of a decrease in dynamic recovery parameter and increase in dislocation storage capacity, irrespective of temper condition. </jats:p

Synthesis, Crystal Structural Characterization and Biological Properties of Thiosemicarbazones of Schiff Bases Derived from 4-Acyl-2-pyrazoline-5-one

Abstract: A novel synthesis, single crystal and biological activity of 4-acylthiosemicarbazone-3-methyl-1-(4`-methylphenyl)-2-pyrazolin-5-one by condensation of 4-acyl-3-methyl-1-(4`-methylphenyl)-2-pyrazolin-5-one with thiosemicarbazide was carried out. The compounds were characterized on the basis of elemental analysis, IR, 1 H NMR, Mass, DSC and 13 C NMR spectral data. The compounds were tested for their antibacterial activity against various gram +ve and -ve bacteria. The results were compared with the marketed drugs. The crystal structure was determined by single x-ray diffraction. 4-Acetyl thiosemicarbazone-3-methyl-1-(4`-methylphenyl)-2-pyrazolin-5-one(AcPTMP-ths) crystallizes in the monoclinic system, space group P21/n with a=6.082