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SHARP ESTIMATES ON THE THIRD ORDER HERMITIAN-TOEPLITZ DETERMINANT FOR SAKAGUCHI CLASSES
Kumar, Sushil,Kumar, Virendra Korean Mathematical Society 2022 대한수학회논문집 Vol.37 No.4
In this paper, sharp lower and upper bounds on the third order Hermitian-Toeplitz determinant for the classes of Sakaguchi functions and some of its subclasses related to right-half of lemniscate of Bernoulli, reverse lemniscate of Bernoulli and exponential functions are investigated.
Kumar, Virendra,Nataraju, B.,Thiagarajan, T.,Dandin, S.B. Korean Society of Sericultural Science 2003 International Journal of Industrial Entomology Vol.6 No.1
Systemic fungicides viz., Bavistin and Beyleton are reported to have curative effect against the infection of Beauveria bassiana in silkworm Bombyx mori L. To understand the influence of the systemic fungicides on the disease suppression/development, hematological studies were carried out. There was an increase in the percent total hemocyte count, granulocyte and plasmatocyte in silkworm treated with the systemic fungicides. It possibly indicates the influence of systemic fungicide on the hemocyte mediated defense system leading to the higher resistance and suppression of disease development.
VIRENDRA KUMAR,NAK EUN CHO The Korean Society for Computational and Applied M 2023 Journal of applied mathematics & informatics Vol.41 No.2
The purpose of the present paper is to obtain some subordination and superordination preserving properties with the sandwich-type theorems for multivalent functions in the open unit disk associated with Srivastava-Attiya operator. Moreover, applications for integral operators are also considered.
Sharp coefficient bounds for starlike functions associated with the Bell numbers
Kumar, Virendra,Cho, Nak Eun,Ravichandran, V.,Srivastava, H. M. De Gruyter 2019 Mathematica Slovaca Vol.69 No.5
<P><B>Abstract</B></P><P>Let[FORMULA OMISSION]be the class of normalized starlike functions associated with a function related to the Bell numbers. By establishing bounds on some coefficient functionals for the family of functions with positive real part, we derive for functions in the class[FORMULA OMISSION]several sharp coefficient bounds on the first six coefficients and also further sharp bounds on the corresponding Hankel determinants. Bounds on the first three consecutive higher-order Schwarzian derivatives for functions in the class[FORMULA OMISSION]are investigated.</P>
Chaudhari, Virendra Kumar,Shegokar, Niranjan L.,Lal, Achchhe Techno-Press 2017 Advances in aircraft and spacecraft science Vol.4 No.5
This article covenants with the post buckling witticism of carbon nanotube reinforced composite (CNTRC) beam supported with an elastic foundation in thermal atmospheres with arbitrary assumed random system properties. The arbitrary assumed random system properties are be modeled as uncorrelated Gaussian random input variables. Unvaryingly distributed (UD) and functionally graded (FG) distributions of the carbon nanotube are deliberated. The material belongings of CNTRC beam are presumed to be graded in the beam depth way and appraised through a micromechanical exemplary. The basic equations of a CNTRC beam are imitative constructed on a higher order shear deformation beam (HSDT) theory with von-Karman type nonlinearity. The beam is supported by two parameters Pasternak elastic foundation with Winkler cubic nonlinearity. The thermal dominance is involved in the material properties of CNTRC beam is foreseen to be temperature dependent (TD). The first and second order perturbation method (SOPT) and Monte Carlo sampling (MCS) by way of CO nonlinear finite element method (FEM) through direct iterative way are offered to observe the mean, coefficient of variation (COV) and probability distribution function (PDF) of critical post buckling load. Archetypal outcomes are presented for the volume fraction of CNTRC, slenderness ratios, boundary conditions, underpinning parameters, amplitude ratios, temperature reliant and sovereign random material properties with arbitrary system properties. The present defined tactic is corroborated with the results available in the literature and by employing MCS.
Scenario Planning and Risk Failure Mode Effect and Analysis (RFMEA) based Management
Paul, Virendra Kumar,Basu, Chaitali Korea Institute of Construction Engineering and Ma 2016 Journal of construction engineering and project ma Vol.6 No.2
This paper elaborates the significance of scenario planning in risk management, and presents an integrated approach which takes into account the 'Risk Events' derived from scenario planning for risk prioritisation. This research integrates scenario planning with Risk Failure Mode and Effect Analysis (RFMEA) through examples from construction litigations of project schedule and cost overrun cases as a simplified approach to project risk management. The proposed methodology incorporates scenarios developed from realistic events of dispute and arbitration cases from construction projects, and thereby increasing potential to foresee risks and their effects well in advance. The results from this methodology shall be validated against outcome of survey study conducted by KPMG-PMI (2013) on project schedule and cost overruns that was based on Ministry of Statistics and Programme Implementation (MoSPI) Project Monitoring data for 2012-13.
G. Gnanamoorthy,Virendra Kumar Yadav,Daoud Ali,Ezhumalai Parthiban,Gokhlesh Kumar,V. Narayanan 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.110 No.-
Newly, a few inorganic metal phosphates such as X- ethylenediamine (en), triethylenetetramine (trien),ethanolamine (ETA) and dimethylamine (DMA)-CuTiAP nanospheres were investigated by hydrothermalmethod with the optimum temperature at 150 C. Here, the number of x-CuTiAP nanospheres was investigatedfor several characteristics such as XRD structural analysis with phase orientations parameter, FTIRand Raman spectroscopy, DRS UV Visible spectroscopy, FE-SEM and HR-TEM analysis. The x-CuTiAPnanospheres calculated band gap energy is 3.1 to 3.0 eV. FE-SEM and HR-TEM analysis was confirmedto the sphere like morphology with diameter ranges at1-2 mm, 100–200 nm and 50 nm. The Ti–O &Cu–O groups were evaluated by FTIR and Raman spectroscopy. x-CuTiAP nanospheres in presence ofBrilliant green (BG) and Methylene blue (MB) dyes performed an excellent photocatalytic activity underhalogen lamps. As a result, the antimicrobial studies for x-CuTiAP nanospheres with StaphylococcusAureus (St. a) (gram-positive), Pseudomonas aeruginosa (Ps. a) (gram-negative) pathogens and Candidaalbicans (C. a) (fungal) pathogens are enhancing their antimicrobial activity with observed to the higherinhibition. x-CuTiAP nanospheres have very good stability and radical properties.
Stimulation of Fecundity through Antennal Amputation in the Mulberry Silkworm, Bombyx mori L.
Ravindra Singh,Virendra Kumar,B. K. Kariappa,S. B. Dandin,D. Raghavendra Rao 한국잠사학회 2004 International Journal of Industrial Entomology Vol.8 No.2
Stimulation of fecundity following female antennal amputation has been reported for the first time in silkworm. Antennal amputation caused significant increase in fecundity in two newly evolved multivoltine silkworm breeds viz., BL 67 and 96A. This study indicated better chances for increasing egg yield and the increase in fecundity may be attributed to the action of some neurohormones. Significance of antennal amputation in silkworm has been discussed.