Tahun Terbit

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Stabilized lasers can provide a probe of the interactions between the excited states of laser transitions and the laser cavity itself. We describe a frequency stabilized diode pumped Nd:YAG laser. In this work, we study Nd:YAG laser with the purpose of achieving both high output power in single frequency operation and good frequency stability by a simpler frequency stabilization technique. Acti…

Methods are described for the development of a desktop computerised aid for steam and air properties calculation using Microsoft Excel TM and associated Visual Basic for Applications (VBA) automation tool. The methods allow for overcoming the tedious routines of conducting mid-point interpolation calculations. The methods can be extended to other fluids’ properties data calculations.

For soil to be suitable for high way design and constructions, they must meet existing local requirements for index properties in addition to certain strength criteria. Samples of lateric soil from two locations along Igbatoro road in Southwestern Nigeria were differently stabilized with varying quantities of rock flour from 2% to 10%. The objective of this study was to determine the effect of…

On the basis of the general idea about dominant roles of electron configurations of constituting atoms and inter-atomic chemical bonds in the formation of thermal properties of crystals, there is suggested a new theory of the specific heat, in which the heat absorption by the crystalline lattice is associated not with the excitation of phonon waves, but the oscillations of atoms localized in t…

The power industry experiences revolution known as "Power Industry Structure Renewal" mainly due to increasing progresses in science and technology which will result in a gradual change in methods of communication with energy tools. Part of the revolution is the application of small generation units in power generation; units with lower generation volume capacity, and cost compared to the enor…

We develop a continuous linear multistep method using interpolation and collocation of the approximate solution for the solution of first order ordinary differential equation with a constant step-size. The approximate solution is combination of power series and exponential function. The independent solution was then derived by adopting block integrator. The properties of the method was investig…

Physicians are critical, vital and essential among human resources and play an important role in success of information technology adoption in medical practices. The aim of the present study was to assess physicians' use of, knowledge about and attitudes toward computer applications in public and private hospitals. The study was conducted at 45 hospitals, where twenty of them were private (for-…

The Cyclic Voltammetric behaviour of copper(II)tetramethylethylenediamine systems with [Cu(II)]:[tmen]=1:10, 1:100 molar ratios, 1×10-3M Cu(ClO4)2.6H2O in aqueous 0.2M NaClO4 supporting electrolyte have been studied at pH5.0,6.50 7.20,9.10, 10.30, 10.85 and 11.20. The electrode process show quasi reversible one electron charge transfer preceded and followed by chemical reaction at glassy carb…

In this research, the construction of L-stable block hybrid Simpson’s methods for parallel implementation is discussed. Methods of orders 4, 5 and 6 are constructed with numerical experiments. The newly constructed L-stable methods for k=2 have shown to handle stiff equations while methods for k=3 and 4 do not handle stiff equations.