Polycrystalline Barium hexaferrite (BaFe12O19) having variable grain sizes were prepared by auto-combustion and solid state technique. SEM micrograph shows the variation of grain size (from nano range to bulk) of the system prepared at different temperatures. For this work electric transport (in the frequency range 100Hz to 1Mz) and magnetic study (M-H loop) carried out at room temperature. From the electric study it was found that, resistivity of the system varies inversely with grain size, ...

The plates used as structural elements in the field of aerospace, offshore, ocean, mechanical, nuclear, and civil engineering take different shapes due to their functional and structural requirements as well as for aesthetic considerations. Their application with complex configuration is of practical importance and requires accurate and efficient analysis of their stability. In this paper, finite element buckling analysis of different complicated shaped thin plates is presented. In the formul...

This paper investigates the various aspects of network on Chip(NoC) design and its FPGA implementation. A parametric approach of evaluating the FPGA resources, delay and maximum frequency of operation for a NoC design has been described which may help the designer to take early decision related to NoC designing and prototyping. Virtual channel(VC), flit buffer depth and flit data width are taken as the parameter for evaluation. The functional simulation results show a successful data transfer...

One of the major reasons for the popularity of geosynthetic reinforced earth retaining structures is their ability to perform better under seismic loading conditions. Pullout resistance is one of the most important factors that affect the stability of reinforced soil structures under seismic loading conditions. However, conventional methods do not consider the obliquity of the pullout force and consider only axial direction of the pull. In this paper, effect of oblique pullout on the seismic ...

The machining behaviour of Aluminium alloy 6061 using Electro-Discharge Machining (EDM) is aimed to be investigated by considering three different tool material viz. Copper, Graphite and Brass. The machinability of Aluminium alloy 6061 in EDM is to be analysed in terms of Material Removal Rate (MRR), surface roughness (Ra), and thickness of the recast layer. By considering the following EDM process parameters viz. gap voltage, peak discharge current, pulse-on time, duty factor and dielectric ...

Here, we have considered the following class of singularly perturbed parabolic initial boundary value problem (IBVP): 8< : Lu(x) ut(x; t) 􀀀 "uxx(x; t) 􀀀 (a(x)u(x; t))x = f(x; t); G = (0; T]; = (0; 1); 􀀀 = GnG; u(x; 0) = s(x); x 2 ; u(0; t) = q1(t); u(1; t) = q2(t); t 2 [0; T]; (1) where 0 < " 1, a(x) is su ciently smooth and a(x) > 0. Under su cient smoothness and compatibility conditions on f and s, the IBVP (1) admits a unique solution which possesses a regula...

Mergers and acquisitions (M&As) are the significant corporate restructuring activities that attract the attention among shareholders as they focus on wealth creation. The transactions that involve M&A deals are considered as very risky and challenging in nature. Thus, decision in M&A transactions is considered as most important investment decision of a company. It gives an immense opportunity for researchers to examine, observe and analyse the implications of these investment decisions on the...

The magnetoelectric (ME) effect, i.e., cross control of magnetization (electric polarization) by an external electric (magnetic) field, may introduce a new design principle for novel spin devices. However, it has been a long-standing challenge to enhance the magnetoelectric effect. There are two known magnetoelectric effects: a conventional linear magnetoelectric effect in a centrosymmetry-broken magnet and a recently explored nonlinear magnetoelectric effect associated with a magnetic phase ...

The decision to install a PV plant depends on three major factors: the climatic and environment conditions of the location, the viability of commercial operations, and the government policies. Economic feasibility of a PV system in the energy market is largely driven by the cost of technology, the cost of installation, and the yield of the plant. Considering uncertain nature of geographical parameters (solar radiation, temperature, dust accumulation, etc.), development of a reliable model to ...

Magnetic materials with spinel structure have been interesting due to their wide range of applications for large spin polarization and high magnetic critical temperatures; well above the room temperature. Ferrimagnetic and electrical properties of the spinel ferrites are strongly influenced by the distribution of cations along with Fe3+-Fe2+ between the tetrahedral and octahedral sites. Cobalt ferrite, an inverse spinel at bulk and partial inversion in nano order has been important for discus...

An energy storage system plays an important role in the operation of micro-grid and electric vehicle. Battery management system (BMS) in micro-grid and electric vehicle is one of the challenging areas and has witnessed much research interest. This paper provides the design and implementation details of photovoltaic (PV) based charger for lead-acid batteries. For charging the battery, a synchronous buck converter is used which is fed by a PV panel. Maximum power point tracking (MPPT) algorithm...

The performance of a bituminous pavement mainly depends on the properties of binder used, volumetric properties of bituminous mixtures and external factors such as environment and traffic volume. The higher traffic volume producing higher stresses and temperature variations affecting the binder performance are the main causes for pavement distresses in the form of fatigue cracking and permanent deformation. The solutions to reduce such pave...

Community participation in watershed management is one of the features of post watershed project implementation era. Community participation refers to the involvement of watershed beneficiaries in watershed activities, it is essential for the sustainability of the programme. Watershed is implemented by the Government of India (GOI) and State governments to deal with the problem of runoff reduction, soil degradation and improve the productivity of rain fed agriculture. To explore the potential...

Bitter gourd (Momordica charantia L.) is famous for its nutritional and medicinal value and is widely recommended in daily diet. Despite of many advantages, it has not been explored to its potential because of its bitter taste. Proper processing and value addition options of this vegetable is necessary. Drying with appropriate pre-treatments can extend the shelf life and availability of the product for consumption throughout the year. Chemical treatment has been used to improve drying charac...

Teaching and learning are the continuous processes where one can gain, share and evaluate the knowledge. Since ancient time, conventional class room teaching and conducting examination are predominant in the teaching learning process. However, the development of ICT has brought a revolution by outreaching millions of students at a time to share the knowledge in real time. Blending of the conventional method with ICT has made the education system time-flexible, economic and efficient. The exa...

The objective of this study is to investigate the various switching tables for performance enhancement of three phase Pulse Width Modulated (PWM) rectifiers controlled by Direct Power Control (DPC). This study includes different lookup tables such as fast, slow regenerative fast and regenerative slow along with Noguchi’s conventional lookup table. DPC has portrayed the benefits of simplicity, faster response, elimination of current controllers, and better sensitivity to variations in system p...

It is technically exigent task to solve depth integrated Navier Stokes equation for finding out the depth averaged velocity and boundary shear distribution in a compound channel with symmetric and asymmetric flood plains.Due to complexity of the flow structure at junction of main channel and flood plain, there is a certain level of uncertainty to predict the accurate depth averaged velocity and boundary shear distribution exceptionally at the shear layer region, appearing near the junctions d...

For uniform flow conditions in a compound open channel, much of the hydraulic resistance may be ascribed to channel roughness and flow characteristics with further accounting for other forces. The resistance to flow along the boundary of the compound channel is exhibited in the form of shear stress along the periphery, known as boundary shear. Distribution of this boundary shear across the lateral direction of the compound channel is one of the challenging tasks. An expression to predict this...

In this paper, energy loss in non-prismatic compound channels of different geometry and flow conditions are analysed. Two types of diverging compound channels are considered. Those are a) compound channel with diverging floodplain originating from compound channel with prismatic flood plain with angle 5.93 b) compound channel with diverging flood plain of 3.81, 5.7 and 11.3 angle originating from simple main channel. Due to non-uniformity of flow in such cases the prediction of flow param...