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Kumar, Rajneesh,Sharma, Poonam 테크노프레스 2016 Multiscale and multiphysics mechanics Vol.1 No.4
In the present investigation reflection and transmission of plane waves at an elastic half space and piezothermoelastic solid half space with fractional order derivative is discussed. The piezothermoelastic solid half space is assumed to have 6 mm type symmetry and assumed to be loaded with an elastic half space. It is found that the amplitude ratios of various reflected and refracted waves are functions of angle of incidence, frequency of incident wave and are influenced by the piezothermoelastic properties of media. The expressions of amplitude ratios and energy ratios are obtained in closed form. The energy ratios are computed numerically using amplitude ratios for a particular model of graphite and Cadmium Selenide (CdSe). The variations of energy ratios with angle of incidence are shown graphically. The conservation of energy across the interface is verified. Some cases of interest are also deduced from the present investigation.
Kumar, Rajneesh,Sharma, Poonam Techno-Press 2017 Coupled systems mechanics Vol.6 No.2
In the present investigation reflection and transmission of plane waves at an elastic half space and piezothermoelastic solid half space with fractional order derivative is discussed. The piezothermoelastic solid half space is assumed to have 6 mm type symmetry and assumed to be loaded with an elastic half space. It is found that the amplitude ratios of various reflected and refracted waves are functions of angle of incidence, frequency of incident wave and are influenced by the piezothermoelastic properties of media. The expressions of amplitude ratios and energy ratios are obtained in closed form. The energy ratios are computed numerically using amplitude ratios for a particular model of graphite and Cadmium Selenide (CdSe). The variations of energy ratios with angle of incidence are shown graphically. The conservation of energy across the interface is verified. Some cases of interest are also deduced from the present investigation.
Pankaj Kumar Sagar,Poonam Sharma,Rambir Singh 대한약침학회 2022 Journal of pharmacopuncture Vol.25 No.1
Objectives: The quorum-sensing–inhibitory and anti-biofilm activities of the methanol extract of E. globulus leaves were determined against clinically isolated multidrug-resistant Pseudomonas aeruginosa. Methods: The preliminary anti-quorum–sensing (AQS) activity of eucalyptus was investigated against a biosensor strain Chromobacterium violaceum ATCC 12472 (CV12472) by using the agar well diffusion method. The effect of sub-minimum inhibitory concentrations (sub-MICs) of the methanol extract of eucalyptus on different quorum-sensing–regulated virulence factors, such as swarming motility, pyocyanin pigment, exopolysaccharide (EPS), and biofilm formation, against clinical isolates (CIs 2, 3, and 4) and reference PA01 of Pseudomonas aeruginosa were determined using the swarm diameter (mm)-measurement method, chloroform extraction method, phenol (5%)-sulphuric acid (concentrated) method, and the microtiter plate assay respectively, and the inhibition (%) in formation were calculated. Results: The preliminary AQS activity (violacein pigment inhibition) of eucalyptus was confirmed against Chromobacterium violaceum ATCC 12472 (CV12472). The eucalyptus extract also showed concentration-dependent inhibition (%) of swarming motility, pyocyanin pigment, EPS, and biofilm formation in different CIs and PA01 of P. aeruginosa. Conclusion: Our results revealed the effectiveness of the E. globulus extract for the regulation of quorum-sensing–dependent virulence factors and biofilm formation at a reduced dose (sub-MICs) and suggest that E. globulus may be a therapeutic agent for curing and controlling bacterial infection and thereby reducing the possibility of resistance development in pathogenic strains.
RELATIVE RELATION MODULES OF FINITE ELEMENTARY ABELIAN p-GROUPS
Mohammad Yamin,Poonam Kumar Sharma 대한수학회 2014 대한수학회보 Vol.51 No.4
Let E be a free product of a finite number of cyclic groups, and S a normal subgroup of E such that E/S = G is finite. For a prime p, ˆ S = S/S ′ Sp may be regarded as an FpG-module via conjugation in E. The aim of this article is to prove that ˆ S is decomposable into two indecomposable modules for finite elementary abelian p-groups G.
RELATIVE RELATION MODULES OF FINITE ELEMENTARY ABELIAN p-GROUPS
Yamin, Mohammad,Sharma, Poonam Kumar Korean Mathematical Society 2014 대한수학회보 Vol.51 No.4
Let E be a free product of a finite number of cyclic groups, and S a normal subgroup of E such that $$E/S{\sim_=}G$$ is finite. For a prime p, $\hat{S}=S/S^{\prime}S^p$ may be regarded as an $F_pG$-module via conjugation in E. The aim of this article is to prove that $\hat{S}$ is decomposable into two indecomposable modules for finite elementary abelian p-groups G.
Anjana Solanki,Jaya Shrivastava,Sumant Upadhyay,Surbhi Choudhary,Vidhika Sharma,Poonam Sharma,Pushpendra Kumar,Praveen Kumar,Sheryl Ehrman,Vibha R. Satsangi,Rohit Shrivastav,Sahab Dass 한국물리학회 2013 Current Applied Physics Vol.13 No.2
The effects of high electronic energy deposition on the structure, surface topography, optical property and photoelectrochemical behavior of barium titanate thin (BaTiO3) films have been investigated by irradiating films with 120 MeV Ag9+ ions at different ion fluences in the range of 1 x 1011-3 x 1012 ions cm-2. Barium titanate thin films were deposited on indium tin oxide-coated glass substrate by solegel spin coating method. The structure of the film was crystalline with tetragonal phase. Surface topography was studied by atomic force microscopy detailing the values of roughness of the films. Maximum photocurrent density of 1.78 mA cm-2 at 0.4 V/SCE and applied bias photon-to-current efficiency (ABPE) of 0.91% was observed for BaTiO3 film irradiated at 1 x 1011 ions cm-2.