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Article
Phosphorus, Sulphur and Arsenic Assimilation by Rice Genotypes
Plants as well as the varieties of the same plant differ widely in their ability to absorb nutrient/ pollutants from soil even under the same soil fertility level. The present investigation was undertaken to s...
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Chapter and Conference Paper
Ramanujan Sums and Signal Processing: An Overview
The present chapter discusses Ramanujan Sums and its various signal processing applications. VLSI architectures to calculate Ramanujan Sums and DFT using it are also presented here. This chapter clearly articu...
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Article
An analytical reliability model for WDM optical networks based on heuristically generated protection trees
An analytical model based on heuristically generated protection trees has been proposed to find the reliability performance analysis of WDM optical networks. In this model, the protection trees of the networks...
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Article
Emulsion-based synthesis of NaA zeolite nanocrystals and its integration towards NaA membranes
NaA zeolite nanoparticles (seed crystals) of size 50–65 nm were synthesized using water-in-oil (w/o) type emulsions at a considerably low temperature of 65 ± 1°C in a short duration of 2 h. The emulsions were ...
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Chapter and Conference Paper
Minimization of Handoff Latency by Area Comparison Method Using GPS Based Map
Handoff has become a drastic drawback in mobile communication system especially in urban areas owing to the limited coverage area of access points (AP). When a mobile node (MN) moves outside a range of its cur...
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Chapter and Conference Paper
Minimization of Handoff Failure and Cellular Traffic by Introducing IEEE 802.11b WLAN Router in the Handoff Region
Handoff is an inherent drawback of mobile communication, especially in urban areas, due to the limited coverage of access points (APs) or base stations (BS). It is essential to minimize this delay to provide t...
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Chapter and Conference Paper
Reducing Handoff Latency in IEEE 802.11b with the Help of Neighbor Graph Using Carrier to Interference Ratio
IEEE 802.11 wireless networks have gained ever greater popularity nowadays. Handoff is a critical issue in IEEE 802.11 based wireless networks and latency in the handoff process is a major concern.
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Chapter and Conference Paper
An Efficient Hybrid Data-Gathering Scheme in Wireless Sensor Networks
For time-sensitive applications requiring frequent data gathering from a remote wireless sensor network, it is a challenging task to design an efficient routing scheme that can minimize delay and also offer go...
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Article
Silicalite-1 zeolite membranes on unmodified and modified surfaces of ceramic supports: A comparative study
Silicalite-1 zeolite membranes were prepared hydrothermally on the porous ceramic supports, both unmodified and modified with 3-aminopropyl triethoxysilane (APTES) as a coupling agent following ex situ (secondary...
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Chapter and Conference Paper
Fault Detection and Localization Scheme for Multiple Failures in Optical Network
This paper proposes fault detection and localization scheme to handle multiple failures in the optical network using wavelength-division multiplexing (WDM) technology. This proposed scheme is two-phased scheme...
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Chapter and Conference Paper
A Centralized Algorithm for Topology Management in Mobile Ad-Hoc Networks through Multiple Coordinators
The topology of a MANET is maintained enduring transmission failures by suitably selecting multiple coordinators among the nodes constituting the MANET. The basic philosophy behind the algorithm is to isolate ...
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Article
Novel technique for the synthesis of lithium aluminate (LiAlO2) powders from water-based sols
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Article
Sol-Emulsion-Gel Synthesis of Alumina-Zirconia Composite Microspheres
Oxide microspheres in the system Al2O3-ZrO2 (AZ), with the Al2O3:ZrO2 molar ratios as 87:13, 78:22, 74:26 and 64:36 were obtained from emulsified bi-component sols by the sol-emulsion-gel method. The surfactant c...
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Article
A novel technique for fabrication of near-net-shape CMCs
A sol-gel vacuum infiltration technique has been developed for the fabrication of near-net-shape ceramic matrix composites (CMCs) using discontinuous mullite fibre preform with 15 vol.% of fibre content and ZrO2....
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Article
Role of some rare earth (RE) ions (RE = La, Pr, Nd, Sm, Gd and Dy) in crystal and mechanical behaviours of sol-gel derived ZrO2-2 mol% REO2O3 spun fibres calcined at 1300°C
Crystal behaviours such as crystallization temperature (amorphous to tetragonal (t) zirconia), tendency of phase transformation (tetragonal to monoclinic (m) zirconia) and lattice strain were studied with mechani...
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Article
Mullite Fibre Mats by a Sol-Gel Spinning Technique
Fine grained, microcrystalline mullite (Al4+2x Si2−2x O10−x) fibre mats with a web-like structure were fabricated by a sol-gel spinning technique using a multi-orifice spinneret. Points of contact in gel fibre ma...
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Article
Rheological properties of boehmite sols during ageing at room temperature (30 ±1°C) under closed condition
Boehmite sols were obtained by peptizing boehmite precipitates with glacial acetic acid. The sols were aged at room temperature (30 ±1°C) under closed condition. Rheological properties of the sols were studied...
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Article
Sol-emulsion-gel synthesis of hollow mullite microspheres
Hollow mullite microspheres were obtained from emulsified diphasic sols by an ion extraction method. The surfactant concentration and viscosity of the sols were found to affect the characteristics of the deriv...
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Article
Role of organic solvents and surface-active agents in the sol-emulsion-gel synthesis of spherical alumina powders
Spherical alumina particles were prepared following the sol-emulsion-gel method by systematic variation of (i) the concentration of the surfactant Span 80 above or below the critical micelle concentration (CMC...
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Article
Sol-Emulsion-Gel Synthesis of Shaped Powders in the System BaO-TiO2
Shaped tetragonal barium titanate (BaTiO3) particles were prepared by the sol-emulsion-gel method with systematic variation of the concentration of a non-ionic surfactant in the organic phase (“oil phase”) of wat...
