Minimum Wave Speed Solution of Fisher's Equation by the Method of Least Squares - A Note

The paper presents a simple solution of travelling-wave type (corresponding to the minimum speed c=2) of Fisher's equation. which can be readily adapted for modelling neutron density in nuclear reactors, reaction-diffusion processes'in propulsion systems and growth of new advantageous gene in one-dimensional habita

Laminar Dispersion in Presence of Slip and Cbemical Reactions

Concentration profiles of a solute convectively diffusing and simultaneously undergoing homogeneous and heterogeneous chemical reactions under isothermal conditions in a non-Poisuelle laminar slip flow taking place in a closed parallel-plate channel with a permeable bed are presented. It is shown that presence of slip brings about an increase in concentration across the entire cross-section of the channel. Effect of varying reaction rate parameters on concentration profiles is also discussed

Dispersion in Presence of Slip and Chemical Reactions in Porous-Wall Tube Flow

This paper deals with the problem of studying the effect of tangential velocity slip on the concentration profiles of a solute which is convectively diffusing and simultaneously undergoing irreversible, first order homogeneous and heterogeneous chemical reactions in a porous wall tube, under isothermal laminar flow conditions. It is shown that the presence  of velocity slip at the porous wall induces an increase in the concentration of solute across the entirecross-section of the tube while an increase in the rates of chemical reactions is found to reduce the concentration under both slip and no-slip boundary conditions. Accurate eigen values, eigen functions and the concentration profiles are determined for the cases when slip or no-slip boundary condition holds at the wall

Diesel Fuel (High Pour Point) For Defence

The papar reviews the studies carried out on diesel fuels produced in Indian refineries and their compatibility with Hycatrol rubber tanks fitted on some 'A' type vehicles. It gives the genesia of latest Defence specifiation for Diesel fuel High Pour Point for use in A type vehicles fitted with rubberised tanks. Further improvements required in the Defence specification are also discussed

Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Pd(II), Cd(II) & UO2(II) Chelates of Schiff Bases Derived from o-Aminobenzenesulphonic Acid & 2-Aminoethanesulphonic Acid & 2-Hydroxy-1-naphthaldehyde

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Scoping the role of the nurse consultant

Project Summary Middlesex University is funded by HENCEL to undertake the following project: “Scoping the Role of the Nurse Consultant”. The project aims to provide HENCEL with a detailed review of progress of nursing research and development (R&D) being delivered through the Nurse and Midwife Consultant role across North Central and East London. This interim report covers the period from December 1st 2013 to 31st March 2014. The report considers progress of phase one and phase two

Research Notes : India : Genetic variability, interrelationships and path-coefficient analysis of seed technological traits in soybean under different cropping systems

Soybean is generally cultivated in India as a sole or monoculture crop. However, its intercropping with maize is a common practice in some hilly areas of northern India. The practice aims at (1) insuring against total crop fail-ures under abnormal weather conditions, (2) increasing total productivity for unit land area, and (3) equitable and judicious utilization of land resources and farming inputs

Potential Application of a Heterotrophic Microorganism for Bioleaching of Metals from Indian Ocean Nodules

Bacillus circulans, a heterotrophic microorgansim has been used for the recovery of copper, nickel and cobalt from sea nodules. The organism was revived in nutrient medium and adapted gradually on sea nodules prior to leaching. Bioleaching studies were carried out in shake flasks containing sea nodule powder with growth medium and adapted microbial culture under a range of conditions such as pH, pulp density, particle size of nodules and temperat-ure. Metal recovery was highest in 30 days but the rate of recovery was slow after 25 days of bioleaching. A 92% Cu, 73% Ni, 72% Co, 38% Mn and 17% Fe was recovered at pH 2 in 25 days at 35°C temperature. XRD identification of residue showed the presence of some lower and mixed oxidation phases of manganese and some unaltered iron phases. The biodissolution of metals was direct enzyme leading to reduction of Mn (IV) to Mn (II) and Fe (III) to Fe (II)

Conductance length autocorrelation in quasi one-dimensional disordered wires

Employing techniques recently developed in the context of the Fokker--Planck approach to electron transport in disordered systems we calculate the conductance length correlation function $$ for quasi 1d wires. Our result is valid for arbitrary lengths L and $\Delta L$. In the metallic limit the correlation function is given by a squared Lorentzian. In the localized regime it decays exponentially in both L and $\Delta L$. The correlation length is proportional to L in the metallic regime and saturates at a value approximately given by the localization length $\xi$ as $L\gg\xi$.Comment: 23 pages, Revtex, two figure

Multi-Channel Transport in Disordered Medium under Generic Scattering Conditions

Our study of the evolution of transmission eigenvalues, due to changes in various physical parameters in a disordered region of arbitrary dimensions, results in a generalization of the celebrated DMPK equation. The evolution is shown to be governed by a single complexity parameter which implies a deep level of universality of transport phenomena through a wide range of disordered regions. We also find that the interaction among eigenvalues is of many body type that has important consequences for the statistical behavior of transport properties.Comment: 19 Pages, No Figure