Assessing the Effectiveness of Public Sector Enterprises Reforms on Growth and Performances of Steel Authority of india LTD

Purpose: The study focussed to understand the reforms that influenced the performance of the PSEs in India with a special focus on SAIL, to analyse the role played by the reforms taken in a public enterprise in increasing the performance of SAIL and to examine the significance of such reforms in increasing the effectiveness of public sector enterprises.   Theoretical Framework: This assessment, the performance of the public sector enterprises of India is going to be discussed in reference to the reforms made by the Government of India with reference to the SAIL (SAIL, 2023).   Design/Methodology/Approach: The research topic has been talking about the reforms that have been made in Steel Authority of India Limited which would require quantitative data from various sources and then its analysis.   Findings: The government changed its economic policy in the year 1991 and thus made provision for the privatization of non-profit making public sector enterprises (Kunmin and Panchanatham, 2019). SAIL was among the profit-making PSUs of India as it is the largest steel producer in the country.   Conclusion: Article reveals that the research aimed to provide an assessment of the impact of reforms on the growth and performance of PSEs like “Steel Authority of India Limited”

The Role of Customer Satisfaction in Improving the Performance of Sail (Steel Authority of India LTD)

Purpose: The study focussed on the influence of customer satisfaction on reform policies and the performance of SAIL and attempts to investigate the influence of reform policies in improving the performance of SAIL (De, 2014).   Theoretical Framework: Research examined the moderating role of customer satisfaction between reform policies and the performance of SAIL. A conceptual model with two hypotheses was developed and data were collected from 385 employees and managerial staff in the form of a questionnaire from five integrated units of SAIL (Jain et al., 2014).   Design/Methodology/Approach: Paper goes through the quantitative and qualitative discussion to analyse the performance of SAIL against the backdrop of liberalization measures introduced in the 1990s and afterward. The study will analyse two different periods of SAIL: Before 1990 and after 1990.   Findings: The findings of the study provide useful insights to evaluate and improve SAIL's reform policies and performance and to enhance customer satisfaction.   Conclusion: Article paves the way to huge scope for future researchers. The scope of the study can be further broadened by including several PSEs across multiple industries to gain comprehensive findings about the impact of reforms on the performance of different types of PSEs

Population dynamics of natural enemies on bt / non bt cotton and their correlation with weather parameters

The field study was carried out at Research Farm of cotton section, Department of Genetics and Plant Breeding, CCS Haryana Agricultural University, Hisar, India to determine the effect of environmental factors and seven cotton genotypes (Bt and non Bt) on three natural enemies namely chrysoperla, coccinellids beetle and spi-ders. Natural enemies remained active throughout the crop season (with two peaks) with little differences among them. Chrysoperla and coccinellids both were remained active from 25th to 40th SMW (June to October, 2014) while spiders were active from 25th to 41st. It was observed that highest population of Chrysoperla (1.17 eggs/plant) and spiders (1.59 adult/plant) was observed on Bt cotton cultivar namely RCH-134 and JK-1947 respectively. However, coccinellids preferred non Bt genotype (HHH-223) for their population build-up. Chrysoperla and coccinellids popula-tion was significantly negatively correlated with maximum temperature (r = -0.527 at 5% and r = -0.626 at 1% re-spectively); positively correlated with RHm, RHe; negatively correlated with minimum temperature and wind speed without significance. While, spiders population showed negative correlation with all weather parameters except sun-shine hours. It was observed that population of the natural enemies fluctuated under different environmental conditions during cotton season

Large-eddy simulation of Rayleigh-B\'enard convection for extreme Rayleigh numbers

We adopt the stretched spiral vortex sub-grid model for large-eddy simulation (LES) of turbulent convection at extreme Rayleigh numbers. We simulate Rayleigh-B\'enard convection (RBC) for Rayleigh numbers ranging from $10^6$ to $10^13$ and for Prandtl numbers 0.768 and 1. We choose a box of dimensions 1:1:10 to reduce computational cost. Our LES yields Nusselt and Reynolds numbers that are in good agreement with the direct-numerical simulation (DNS) results of Iyer et al. (Proc. Natl. Acad. Sci., vol 117 (14), 2020, pp. 7594-7598), albeit with a smaller grid size and at significantly reduced computational expense. For example, in our simulations at $Ra = 10^13$, we use grids that are 1/120 times the grid-resolution as that of the DNS (Iyer et al., Proc. Natl. Acad. Sci., vol 117 (14), 2020, pp. 7594-7598). The Reynolds numbers in our simulations range from 1,000 to 200,000. Consistent with the literature, we obtain scaling relations for Nusselt and Reynolds numbers as $Nu \sim Ra^{0.322}$ and $Re \sim Ra^{0.502}$. We also perform LES of RBC with periodic side-walls, for which we obtain the corresponding scaling exponents as 0.343 and 0.477 respectively. Our LES is a promising tool to push simulations of thermal convection to extreme Rayleigh numbers, and hence enable us to test the transition to ultimate convection regime.Comment: 26 pages, 15 figures. Submitted to Journal of Fluid Mechanic

Numerical Studies on Laser Welded Top-Hat Column under Axial Collision Based on the Concept of Super-Folding Element

Extruded longitudinal double-skinned aluminium body plates with integrated stiffeners are recently used for manufacturing in automobile industry like front rails and railway carriages. These extrusions provide light and heavy rigid structures. However, since it is not feasible to produce large parts by extrusion, these plates need to be connected, mostly by welding techniques. The crashworthiness performance of laser welded columns is evaluated using finite element (FE) analysis. This is very important in automobiles, since more attention is being paid to crashworthiness of the structures in recent years. The analysis method is based on the Superfolding Element (SE) concept, which originates from experimentally observed folding patterns of crushed shell elements. The FE model is used to predict accurately the progressive axial collapse of the lased welded columns and impact strength is greatly improved by laser welding technique