Dinesh Pund | SANT GADGEBABA AMRAVATI UNIVERSITY (original) (raw)

Papers by Dinesh Pund

International journal of innovations in engineering and science, May 23, 2022

A pump in an internal combustion engine circulates oil to the rotating bearings, sliding cylinder... more A pump in an internal combustion engine circulates oil to the rotating bearings, sliding cylinders, and camshaft, all of which are lubricated by the oil. Allows the use of higher-capacity fluid bearings and helps cool the engine. This means that the pump is always installed at or near the sump's level in order to avoid priming. The sump's bottom is reached by a basic wire-mesh strainer in a short pickup pipe. When it comes to reliability and simplicity, mechanical pumps powered by crankshaft gear trains are the go-to choice. There is a lot of movement in your engine at 3,000 rpm, with the pistons rising and falling fiercely and the crankshaft spinning quickly. A robust lubrication system is necessary to prevent your engine from melting down, regardless of whether it's merely idling in drive or running at full power. An oil pan and an oil pump are used in a full-pressure lubrication system to ensure that oil does not undergo this nasty metamorphosis. The oiling system is designed to keep a running engine adequately lubricated. Proper engine lubrication not only minimizes wear on moving parts, but it also serves as the primary means of removing heat from pistons, bearings, and shafts. Engine failure can occur if sufficient lubrication is not performed. In order for the engine to function effectively, motor oil must be pumped through the engine's passageways. Larger debris from the oil is removed by a wire mesh strainer in a typical oiling system before the oil is discharged. As a result of the oil pump's flow, oil is dispersed throughout the engine. Prior to being disseminated to lubricate the engine's components (such as pistons and rings, springs, and valves), oil passes through an oil cooler or oil filter in this system.

Department of Chemistry, J. D. Institute of Engineering and Technology, Yavatmal-444 001, Maharas... more Department of Chemistry, J. D. Institute of Engineering and Technology, Yavatmal-444 001, Maharashtra, India Department of Chemistry, S. R. R. L. Science College, Morshi-444 905, Maharashtra, India Department of Chemistry, Government Vidharbha Institute of Science and Humanities, Amravati-444 604, Maharashtra, India E-mail : skdtayade@gmail.com S-Triazino and thiocarbamido nucleus containing drugs have their own importance, significance and identity in the organic, drug, pharmaceutical and medicinal chemistry since from last four decades. Therefore, viscometric measurements of newly synthesized drugs viz. 1-(4-hydroxy)-S-triazino-3-o-tolylthiocarbamide (L1 ), 1-(4-hydroxy)-S-triazino– 3-m-tolylthiocarbamide (L2 ) and 1-(4-hydroxy)-S-triazino-3-p-tolylthiocarbamide (L3 ), were carried out at ...

International Journal of Scientific Research in Science and Technology, 2021

A simple and efficient method of the 3,4- dihydropyrimidin-2(1H)-ones/thiones synthesis in good t... more A simple and efficient method of the 3,4- dihydropyrimidin-2(1H)-ones/thiones synthesis in good to high yield is described. It consists in a one-pot three-component Biginelli condensation using Layered double hydroxide (LDH) as catalyst. The effect of different solvents on the yields of final product also been studied. Highly polar solvent as well as highly non-polar gives less yields in presence of LDH catalyst.

international journal of chemical sciences, 2012

Moisture, ash content and cold water, hot water, 1% NaOH and HCl solubility of cissus quadrangula... more Moisture, ash content and cold water, hot water, 1% NaOH and HCl solubility of cissus quadrangularis linn, root, stem and leaves samples have been investigated in proximate analysis. These resuts directly hamper the drug effect, drug activities, stability of drug and drug potency and also the side effects of drug.

International Journal of Chemical and Physical Sciences, 2012

Thioamido, quinilineo, benzamido and benzoido group containing heterocycles created their own ide... more Thioamido, quinilineo, benzamido and benzoido group containing heterocycles created their own identity and importance in pharmaceutical, medicinal, agricultural and drug sciences. Thioamido and benzamido heterocyclic compounds showed noticeable and remarkable applications in industrial, pharmaceutical, medicinal and drug chemistry. Hence taking all these facts into consideration it was thought interesting to synthesize N-(7-substitutedthiocarbamidoquinoline-4-yl)-N, N-diethyl-pentane-1,4-diamines by interacting N-(7-chloroquinoline-4-yl)-N,N-diethyl-pentane-1,4-diamine with various thiourea in isopropanol medium .The justification and identification of the structure of these newly synthesized compounds had been established on the basis of chemical characterization, elemental analysis and through spectral data The antimicrobial activities of this compounds were screened against E. coli, S. typhi, S. abony, P. aeruginosa, B. subtilis, A. niger, and C. albicons pathogens which are hither to unknown.

International Journal of Chemical and Physical Sciences, 2013

Ultrasonic velocity and density measurements had been carried out for solution of 1-(4-hydroxy-6-... more Ultrasonic velocity and density measurements had been carried out for solution of 1-(4-hydroxy-6-methyl pyrimidino)-3-methyl thiocarbamides (HMPMT) in 70% dioxane-water at 302 0 K and frequency 1 MHz This data have been used to determine various acoustic/thermodynamic parameters viz. adiabatic compressibility, apparent molar compressibility, apparent molar volume, intermolecular free length, relative association and specific acoustic impedance. These properties are used to interpret weak molecular solute-solvent, solute-solute interactions in the system.

The interactions of La(III) and Nd(III) metal ions with 1-(4-hydroxy-6-methyl pyrimidino)-3-pheny... more The interactions of La(III) and Nd(III) metal ions with 1-(4-hydroxy-6-methyl pyrimidino)-3-phenylthiocarbamide [(L1), HMPPT)] and 1-(4-hydroxy-6-methyl pyrimidino)-3-methylthiocarbamide [(L2), HMPMT)] have been studied at 0.1 M ionic strength in 70 % Dioxane-water mixture by Bjerrum method as adopted by Calvin and Wilson, It is observed that La(III) and Nd(III) metal ions form 1:1 and 1:2 complexes with ligands (L1 and L2). The data obtained were used to estimate and compare the values of proton-ligand stability constant (pK.) and metalligand stability constants (log k).The effect of substituents were stud-ied from estimated data (pK & log k).

Pyrimidines, thiocarbamides and various analogue of pyrimidino containing nucleus have their own ... more Pyrimidines, thiocarbamides and various analogue of pyrimidino containing nucleus have their own importance in medicinal, pharmaceutical, agricultural and biochemical sciences. So, it was thought interesting to synthesize 2-amino-4-hydroxy-6-methylpyrimidine by interacting guanidine with acetoacetic ester and its reaction with various isothiocyanates in acetone-ethanol medium. 1-(4-Hydroxy-6- methylpyrimidino)-3-substitutedthiocarbamide was isolated as final product with greater yield and purity.

International Journal of Chemistry, 2011

Guanidine was successfully interacted with acetoacetic ester to synthesize 2-amino-4-hydroxy-6-me... more Guanidine was successfully interacted with acetoacetic ester to synthesize 2-amino-4-hydroxy-6-methylpyrimidine (L 1) which on further treatment with phenylisothiocyanate furnishes 1-(4-hydroxy-6-methylpyrimidino)-3-phenylthiocarbamide (L 2). The interactions of Cu(II), Cd(II), Cr(II) metal ions with L 1 and L 2 have been studied at 0.1 M ionic strength in 70 % Dioxane-water mixture by Bjerrum method as adopted by Calvin and Wilson, It is observed that Cu(II), Cd(II), Cr(II) metal ions form 1:1 and 1:2 complexes with ligands (L 1 and L 2). The data obtained were used to estimate and compare the values of proton-ligand stability constant (pK.) and metal-ligand stability constants (log k).The effect of substituents were studied from estimated data (pK & log k).