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Search Results: 1 - 10 of 353135 matches for " D. P. Sahoo "
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The Factors Impacting the Long Term Settlements and Its Counter Impact on the Industries  [PDF]
D. P. Sahoo
Theoretical Economics Letters (TEL) , 2019, DOI: 10.4236/tel.2019.94053
Purpose of the Study: This paper aims to study the impact of Long Term Settlements, (LTS) which are considered to be instrumental in maintaining long term harmonious industrial relations in the organizations, by the Actors of Industrial Relations. The critical role played by such an instrument had been accepted in the available literature on the subject. But on its control mechanisms of maintaining long term harmonious industrial relations, the existing literature provides a limited insight. Data/Methodology: This study utilized a qualitative methodology and makes use of the inputs received from the respondents interviewed on the impacts of LTS in the emerging industrial context and industrial relations dynamics. The data collected from the interview were outcome of the experience in dealing in the organizational contexts where an LTS is in execution between the Management and the Trade union. Findings: In LTS, the parties get involve in social dialogue (both the trade union and the management) while having their respective interest in the LTS which helps in generating alternatives consistent with their interests. The LTS are social process of emerging to mutually acceptable norms on the payment of wages to the workers by the management for specific return on business, which is regulated under a dynamic context. The social dialogue and collective bargaining are the instruments to LTS both for the Management and the trade union. This study is very practical in nature, and it provides important insight on the dynamics of LTS as an outcome of
Large deflection analysis of skew plates under uniformly distributed load for mixed boundary conditions
D Das, P Sahoo, K Saha
International Journal of Engineering, Science and Technology , 2010,
Abstract: The present paper deals with large deflection static behaviour of thin isotropic skew plates under uniformly distributed load for various mixed flexural boundary conditions. A variational method based on the principle of minimization of total potential energy has been used through assumed displacement fields. The results are generated for different possible combinations of clamped and simply supported boundary conditions and presented in normalized load-deflection plane. Individual effects of skew angle, aspect ratio and boundary condition on normalized load-deflection behaviour are separately shown.
A variational analysis for large deflection of skew plates under uniformly distributed load through domain mapping technique
D Das, P Sahoo, K Saha
International Journal of Engineering, Science and Technology , 2009,
Abstract: In the present paper, the static behaviour of thin isotropic skew plates under uniformly distributed load is analyzed with the geometric nonlinearity of the model properly handled. A variational method based on total potential energy has been implemented through assumed displacement field. The computational work has been carried out on a square normalized domain based on an appropriate domain mapping technique. Validation study for the present work has been carried out quite extensively to establish its accuracy and stability. The developed method is quite general to be applied readily for any classical boundary condition, but to maintain brevity results have been furnished for clamped and simply supported boundaries only.
Relativistic coupled-cluster studies of ionization potentials, lifetimes and polarizabilities in singly ionized calcium
B. K. Sahoo,B. P. Das,D. Mukherjee
Physics , 2009, DOI: 10.1103/PhysRevA.79.052511
Abstract: Using the relativistic coupled-cluster method, we have calculated ionization potentials, E1 matrix elements and dipole polarizabilities of many low-lying states of Ca$^+$. Contributions from the Breit interaction are given explicitly for these properties. Polarizabilities of the ground and the first excited d-states are determined by evaluating the wave functions that are perturbed to first order by the electric dipole operator and the black-body radiation shifts are estimated from these results. We also report the results of branching ratios and lifetimes of the first excited p-states using both the calculated and experimental wavelengths and compare them with their measured values.
Reliability test for the experimental results of electric quadrupole hyperfine structure constants and new assessment of nuclear quadrupole moments in $^{135,137}$Ba
B. K. Sahoo,M. D. Barrett,B. P. Das
Physics , 2013, DOI: 10.1103/PhysRevA.87.042506
Abstract: We investigate electric quadrupole hyperfine structure constant ($B$) results in $^{135}$Ba$^+$ and $^{137}$Ba$^+$ and compare their ratios with the reported measurements of the ratio between the nuclear quadrupole moment ($Q$) values of these isotopes. We carry out confidence tests for the reported experimental $B$ values and calculations of $B/Q$ from the present work. Inconsistencies in the experimental $B$ values are observed in both the isotopes from different experiments performed using the same techniques. The present calculations are carried out using an all order relativistic many-body theory considering only single and double excitations in the coupled-cluster ansatz. After a detailed analysis of the results, the values of $Q$ we obtain for $^{135}$Ba and $^{137}$Ba are 0.153(2)$b$ and 0.236(3)$b$, respectively, which differ by about 4% from the currently referred precise values.
Transverse Energy per Charged Particle and Freeze-Out Criteria in Heavy-Ion Collisions
Cleymans, J.;Sahoo, R.;Mahapatra, D. P.;Srivastava, D. K.;Wheaton, S.
High Energy Physics - Phenomenology , 2007, DOI: 10.1016/j.physletb.2007.12.029
Abstract: In relativistic nucleus-nucleus collisions the transverse energy per charged particle, E_T/N_ch, increases rapidly with beam energy and remains approximately constant at about 800 MeV for beam energies from SPS to RHIC. It is shown that the hadron resonance gas model describes the energy dependence, as well as the lack of centrality dependence, qualitatively. The values of E_T/N_ch are related to the chemical freeze-out criterium E/N about 1 GeV valid for primordial hadrons.
Saturation of $E_T/N_{ch}$ and Freeze-Out Criteria in Heavy-Ion Collisions
J. Cleymans,R. Sahoo,D. P. Mahapatra,D K Srivastava,S. Wheaton
Physics , 2008, DOI: 10.1088/0954-3899/35/10/104147
Abstract: The pseudorapidity densities of transverse energy, the charged particle multiplicity and their ratios, $E_T/N_{ch}$, are estimated at mid-rapidity, in a statistical-thermal model based on chemical freeze-out criteria, for a wide range of energies from GSI-AGS-SPS to RHIC. It has been observed that in nucleus-nucleus collisions, $E_T/N_{ch}$ increases rapidly with beam energy and remains approximately constant at about a value of 800 MeV for beam energies from SPS to RHIC. $E_T/N_{ch}$ has been observed to be almost independent of centrality at all measured energies. The statistical-thermal model describes the energy dependence as well as the centrality independence, qualitatively well. The values of $E_T/N_{ch}$ are related to the chemical freeze-out criterium, $E/N \approx 1 GeV$ valid for primordial hadrons. We have studied the variation of the average mass $(), N_{decays}/N_{primordial}, N_{ch}/N_{decays}$ and $E_T/N_{ch}$ with $\sqrt{s_{NN}}$ for all freeze-out criteria discussed in literature. These observables show saturation around SPS and higher $\sqrt{s_{NN}}$, like the chemical freeze-out temperature ($T_{ch}$).
Titanium dioxide synthesized using titanium chloride: Size effect study using Raman and Photoluminescence
S. K. Gupta,Rucha Desai,P. K. Jha,S. P. Sahoo,D. Kirin
Physics , 2009,
Abstract: Titanium dioxide (TiO2) nanocrystals were prepared by wet chemical method and characterized by x-ray diffraction (XRD), transmission electron microscopy (TEM), Raman scattering (RS) and photoluminescence (PL). The X-ray diffraction shows the formation of nanocrytalline TiO2 of average sizes 7 nm and 15 nm for two samples. The x-ray diffraction, transmission electron microscopy (TEM) and Raman scattering shows that the TiO2 nanocrystals has anatase crystal structure for both samples. The PL intensity of the smaller particle is more, which has been attributed to defects and particle size variation. A modified phonon confinement model with the inclusion of size distribution, a new confinement function for TiO2 nanocrystals and averaged dispersion curves for most dispersion phonon branch (G-X direction) has been used to interpret the size variation of Raman spectra. The obtained Raman peak shift and FWHM agree will the experimental data. Our observations suggest that phonon confinement effects are responsible for a significant shift and broadening for the Raman peaks.
Transverse energy measurement in sqrt{s_{NN}} = 62.4 GeV Au+Au collisions at RHIC
Raghunath Sahoo,Subhasis Chattopadhaya,Alexandre A. P. Suaide,Marcia Maria de Moura,D. P. Mahapatra
Physics , 2005,
Abstract: The transverse energy distributions ($E_{T}$) have been measured for Au + Au collisions at $\sqrt{s_{NN}} = 62.4$ GeV by the STAR experiment at RHIC. They have been obtained from two measurements, the hadronic transverse energy ($E_{T}^{had}$) and the electromagnetic transverse energy($E_{T}^{em}$). $E_{T}^{had}$ has been measured from the tracks obtained by Time Projection Chamber (TPC) excluding the electrons and positrons. $E_{T}^{em}$ has been obtained by the STAR Barrel Electromagetic Calorimeter (BEMC) which measures the energy of electrons, positrons and photons. The measure of transverse energy gives an estimate of the energy density of the fireball produced in heavy ion collisions. $E_{T}$ per participant pair gives information about the production mechanism of particles.
Multi-Parameter Decision Support with Data Transmission over GSM/GPRS Network: a Case Study of Landslide Monitoring
Satyajit Rath,B. P. S. Sahoo,S. K. Pandey,D. P. Sandha
Computer Science , 2013,
Abstract: The planet Earth has hundreds of impact events, with some occurrences causing both in terms of human casualty as well as economic losses. Such attitudes of earth pushed the frontiers to develop innovative monitoring strategies for the earth system. To make that real, although, will require coherent and real-time data by observing the earth behavior contiguously. Wireless Sensor Network (WSN) appears to be the best suitable infrastructure to sense environmental parameters of our interests. In this event of earth observation, another important issue is the monitoring system with high level of precision. There are different types of sensors to measure the behavioral aspects of earth. The sensors integrated with WSN, provide an accurate and contiguous data for analysis and interpretation. This paper briefly addresses earth observation and areas of critical importance to people and society. A case study has also been carried out for disaster like Landslide in the North Eastern region of India. Application software has been developed for the said study for online data acquisition and analysis with pre-disaster early warning system. The system monitors the changing geotechnical condition of this region using various geo-technical sensors like Rain gauge, In-place Inclinometer, Tilt-meter, Piezo-meter and Crack meter. This paper also touches upon the aspects of data transmission over Global System for Mobile Communication (GSM) / General Packet Radio Service (GPRS) to a remote data center.
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