Browsing Makale Koleksiyonu by Publisher "NATL INST SCIENCE COMMUNICATION-NISCAIR"
Now showing items 1-13 of 13
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Ab initio calculations of solvent effects on guanine and thioguanine tautomerism
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2000)The molecular geometries and the relative energies of the ten most stable tautomers of guanine (G1, G2, G3...etc.) and thioguanine (TG1, TG2, TG3...etc.) have been investigated at the HF/3-21G and HF/6-31G** levels in the ... -
Antitumoral effects of Salvia absconditiflora Greuter & Burdet syn. Salvia cryptantha Montbret & Aucher ex Benth. on Breast cancer
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2013)This work aims to investigate the antiproliferative properties of Salvia cryptantha on breast cancer. Salvia cryptantha (SC) extracts were studied for cytotoxicity against the breast cancer cell lines. In-vitro apoptosis ... -
Behaviour of the model surface strip footing on reinforced sand
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2005)A series of tests were carried out with an eccentrically loaded model surface strip footing on un-reinforced and reinforced dense sand to investigate the behaviour of the footing (decrease in ultimate load with increasing ... -
A computational study on relationship between quantum chemical parameters and reactivity of the zwitterionic GABA and its agonists: Solvent effect
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2017)The agonist activity of the title compounds on GABA(c) receptor as well as GABA uptake inhibition activity is reported. B3LYP/6-311++G(d,p) calculations have been performed to obtain the quantum chemical descriptors such ... -
DFT and statistical mechanics entropy calculations of diatomic and polyatomic molecules
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2010)Ab initio/DFT and statistical mechanics methods for calculation of entropy are,reported for 20 molecules in which internal rotations are absent, and are compared with the experimental values. Agreement between these data ... -
DFT and TD-DFT studies on copper(II) complexes with tripodal tetramine ligands
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2013)Copper(II) complexes, containing aliphatic tripodal tetramine ligand, [Cu(trpn)(NH3)](2+) (1), [Cu(tren)(NH3)](2+) (2), [Cu(332)(NH3)](2+) (3) and [Cu(322)(NH3)](2+) (4) are optimized at B3LYP/ LANL2DZ and B3LYP/GEN levels ... -
Dragline cycle time analysis
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2005)Draglines operate in a cyclic nature. Excluding the infrequent walking, a dragline spends its major operational time by digging the dirt and paying it out on a spoil pile. Considering the fact that a dragline performs tens ... -
Effect of flotation reagents on the wet grinding of celestite concantrate
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2004)In this study, the grinding of celestite concentrate in presence of grinding aids, used for celestite ore, flotation has been investigated in a laboratory wet-ball mill as a function of time and concentration of grinding ... -
Effect of impeller-diffuser radial gap ratio in a centrifugal pump
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2009)In this study, effects of flow behavior in a non-traditional centrifugal pump, whose diffuser was subjected to different radial gaps, were investigated numerically using multi-purpose FLUENT code. Flow was assumed to be ... -
Flow analysis in centrifugal compressor vaneless diffusers
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2008)Flow computations have been performed in vaneless diffuser (diam, 1 m), in low speed backswept centrifugal compressor using finite volume method (FVM),coupled with Standard k-epsilon turbulent model by solving oil commercial ... -
Kinetics of wet versus dry grinding of lignite by a porcelain mill
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2002)The kinetics of dry versus wet grinding of several feed size fractions of lignite in a laboratory size porcelain mill are reported here using feed fractions prepared to 600+425, -425+300 and -300+212 mum mono-sizes. The ... -
Preparation of iodine and silver coated thin film on poly(methylmethacrylate) substrate and examination of antifungal, antibacterial and mechanistic properties
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2017)In this study, iodine (I-2) and silver (Ag) have been deposited on polymer substrate, namely poly(methylmethacrylate), via chemical bath deposition (CBD). For the sake of simplicity, uncoated poly(methylmethacrylate), ... -
Wedge type vaned diffuser flow measurements in a low speed centrifugal compressor
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2008)This study establishes effectiveness of vaned diffuser in comparison with vaneless diffusers in centrifugal compressor. Hot wire measurements at three inter-vane positions for mean velocity, turbulent kinetic energy and ...