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Chapter
Considerations for Using Polymetallic Nodules as Alternative Metal Extraction Resource: Focus on Energy-Related Applications
The worldwide imperative for transitioning to sustainable energy depends on the availability of essential minerals such as copper, lithium, nickel, cobalt, and rare earth elements. Some minerals and metals are...
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Chapter
Exploring the Use of Renewable Resources for Processing of Deep-Sea Minerals
Assessment of deep-sea polymetallic nodules processing technologies has assumed renewed importance in the context of the current thrust for supply of metals such as Cu, Ni, Co, and Mn that are required for cle...
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Article
Statistical analysis of urban regional pre-monsoon rainfall in and around Kolkata, India
The present study aims at statistical analysis of pre-monsoon rainfall at Kolkata, India over a span of 45 yr (1970–2014) with special emphasis on the effect of urbanisation on pre-monsoon rainfall at Alipore,...
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Article
ZnO based transparent thin film transistor grown by aerosol assisted CVD
The communication reports the characterization of n \(^+\) ...
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Chapter
Sustainable Processing of Deep-Sea Polymetallic Nodules
The possibility of commercialization of processing technology for sea nodules has been linked with comparisons with similar terrestrial process operations. In addition to techno-economic viability, an added fo...
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Article
Mathematical Model to Estimate the Rate Parameters and Thermal Efficiency for the Reduction of Iron Ore–Coal Composite Pellets in Multi-layer Bed at Rotary Hearth Furnace
Reduction of iron ore–coal composite pellets at a rotary hearth furnace (RHF) could be an energy efficient process under optimized design and operating conditions. The present study aims to analyze such proces...
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Article
Co2 Accounting and Abatement: An Approach for Iron and Steel Industry
The issue of energy use in iron and steel making operations has been focused by several authors. Since current operations use predominantly fossil fuel based carbon bearing inputs, energy use is related to CO2 em...
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Article
Approach for Minimizing Operating Blast Furnace Carbon Rate Using Carbon-Direct Reduction (C-DRR) Diagram
An approach for reducing input carbon rate of a blast furnace using carbon-direct reduction (C-DRR) diagram has been developed. The role of shaft efficiency, blast input conditions, and heat loss rate in reduc...
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Article
Offline recognition of handwritten Bangla characters: an efficient two-stage approach
The present work deals with recognition of handwritten characters of Bangla, a major script of the Indian sub-continent. The main contributions presented here are (a) generation of a database of handwritten ba...
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Article
Minimization of Exergy Losses in the COREX Process
The COREX process is being projected as an alternative for blast furnace iron making. The coal consumption of the COREX process is large with a net fuel rate of ~1000 kg/tone of hot metal (THM). The reason for...
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Article
An Approach for Simulation of Corex Process Smelter Gasifier for Prediction of Coal Rate and Silicon in Hot Metal
A thermodynamic model for the Corex process smelter gasifier focusing on coal pyrolysis as well as on the wustite reduction has been proposed. The compositions of hot metal, slag, and the export gas of the Cor...
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Article
Thermodynamic Considerations in Reduction of Nickeliferrous Laterite by Methane
Efforts have been made to replace carbon-rich reductants such as coke and coal used for reduction of nickeliferrous Laterite ores by hydrogen. This, however, makes the process expensive because of the price of...
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Article
Effect of thermal annealing on Nd2O3-doped silica powder prepared by the solgel process
Nd2O3–SiO2 binary oxide system was synthesized by the solgel method using hydrochloric acid as a catalyst. The binary oxide transformed from the amorphous phase, via intermediate oxide phase, into crystalline pha...
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Article
Coherent control in a single semiconductor quantum dot exhibiting excitonic and biexcitonic features
We have developed a simplified theoretical model to analyze the phenomenon of coherent control in a single semiconductor quantum dot excited by a pair of optical pulses. The first pulse populates a biexciton s...
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Article
Organised structures in wall turbulence as deduced from stability theory-based methods
In earlier work, we have explored the relevance of hydrodynamic stability theory to fully developed turbulent wall flows. Using an extended Orr-Sommerfeld Equation, based on an anisotropic eddy-viscosity model...
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Chapter and Conference Paper
Theoretical Model of the Sub-Layer Streaks and the Cycle of Near-Wall Turbulence for Application to Flow Control
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Chapter
Are There Correlated Genomic Substitutions?
Evidence shows that mutations along some genomes do not all occur independently. This paper introduces statistical methodology for testing the assumption of independence of the substitution processes acting at...
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Article
Influence of Mg do** on refractive index of LiNbO3 crystals
Congruent, 3, 5 and 7 mol % Mg doped LiNbO3 single crystals have been grown by Czochralski technique. The transmittance and refractive indices are measured experimentally. The experimental results are supported w...
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Chapter and Conference Paper
STABILITY OF COMPLIANT PIPE FLOW TO AXISYMMETRIC AND NON-AXISYMMETRIC DISTURBANCES
Stability of compliant pipe flow has been studied, by considering a viscoelastic pipe, with an outer rigid shroud, and, with Hagen - Poiseuille .ow through the pipe. The work includes normal compliance studies...
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Chapter and Conference Paper
AWAVE DRIVER THEORY FOR VORTICAL WAVESPROPAGATINGACROSSJUNCTIONS BETWEEN RIGID AND COMPLIANTWALLS
A novel theoretical method is presented based on the theory of adjoints for analyzing the behaviour of Tollimein - Schlichting waves and other wall-based waves incident on junctions between rigid and compliant...
