Steel Authority of India

About: Steel Authority of India is a based out in . It is known for research contribution in the topics: Microstructure & Ultimate tensile strength. The organization has 797 authors who have published 661 publications receiving 9958 citations. The organization is also known as: SAIL.

Convenient Synthesis of Novel 2‐Substituted Imidazopyrazinone Derivatives.

Abstract: A facile protocol for the synthesis of the target products by Buchwald—Hartwig coupling [(V)] or electrophilic substitution [(VIII)] is described.

(6,7-dihydro-2-nitro-5H-imidazol[2,1-b][1,3]oxazin-6-yl) amide compounds, preparation methods and uses thereof

Abstract: (6,7-Dihydro-2-nitro-5H-imidazo[2,1-b][1,3]oxazin-6-yl)amide compounds of formula (I), and their pharmaceutically acceptable salts, preparation methods and pharmaceutical compositions thereof are disclosed, wherein m and R are defined as in the description. The uses of the compounds in preparing medicaments for treating infectious diseases caused by Mycobacterium tuberculosis , especially infectious diseases caused by multi-drug resistance Mycobacterium tuberculosi are also disclosed.

Noise-rejection techniques for impedance and dielectric spectrometers using ubiquitous test and measurement equipment.

Abstract: This work encompassed the development for a frequency-domain impedance and dielectric spectrometer using ubiquitous test and measurement equipment, i.e., signal generators and digital oscilloscopes. Various methods of amplification, noise rejection, and computations were employed to achieve the desired goals. The frequency range of 100mHz–1MHz was tested using air capacitors of 3.7 and 14.5pF and an applied voltage range of 10–300mV. The multichannel instrument produced a stable and reproducible dual-phase (real and imaginary or magnitude and phase) current sensitivity of 250fA with an average phase stability of less than 0.5° (tanδ<10−2) and a single-phase (magnitude only) current sensitivity of 60fA.

Increase in Productivity of Old Continuous Slab Caster Through Enhancement of Sequence Size by Preventing Rise in Mould Water Inlet Temperature Above 42 °C, in CCM-I:SMS-I of Rourkela Steel Plant

Abstract: Copper mould is an important and integral component of any Conventional Slab Caster for steel to take care of the initial solidification. In case of SMS-I, Rourkela Steel Plant, the slab caster was a “Brown field project” and was commissioned in 1996. This project was having severe space constraints, as it was built in the old SMS which was commissioned during late fifties. In this slab caster the copper mould is a “Constant cooling water volume” design and water flow could not be altered, as per the casting speed. Therefore, the strand shell formed in the mould is thicker in case of lower casting speed and thinner in case of higher casting speed. As per the DPR, the designed sequence size of slab casting was only 2 (Two), with a total production capacity of 0.305 MT per annum. Further, Ladle Heating Furnace was not envisaged during commissioning of slab caster. Though, several attempts were made to cast more than 2 heats in the caster, it was not possible, primarily due to logistic issues, in absence of LHF. Subsequently, the Ladle Heating Furnace (LHF) was commissioned, adjacent to the slab caster in 1998. However, even after LHF was commissioned, the maximum sequence that could be cast was only 5 (Five), with a heat size of 66 Tons. Due to higher production demand, for increasing the sequence size, it was found that the major constraint was “Inlet water temperature to the Copper Mould”, which was crossing the threshold limit of 42 °C. In the present study, an in depth analysis of mould inlet water temperature was carried out and the problem was eradicated, so as to cast more than 5 (Five) heat sequence to increase the productivity.