The crystal and molecular structure of (E)-methyl 3-(2-hydroxyphenyl)-2-(piperidine-1-carbonyl)acrylate, synthesized by one-pot three component reaction of salicylaldehyde, diethyl malonate and piperidine, has been reported. The title compound 4 crystallizes from a mixture of pet...
This paper mainly focuses the effect of palm oil fuel ash (POFA) on the microstructure of self-consolidating high-strength concrete (SCHSC). POFA has been used as a supplementary cementing material replacing ordinary portland cement (OPC) in the range of 0-30%. SCHSC mixes were p...
Aims: In the present work we explore magnetic properties especially spin glass, antiferromagnetic and paramagnetic states of diluted magnetic semiconductors (A1-xMnxA' (A = Zn, Cd and A' = S, Te, Se)). Place: Department of physics, College of natural sciences, Addis Ababa Univers...
Nonequilibrium statistical operator (NSO) in the form suggested by Zubarev is represented as an averaging operation of the quasiequilibrium statistical operator over the distribution of the lifetime of the system. The form of the density function of the system lifetime affects al...
Corrosion in steel reinforced concrete structures has prompted researchers to work on alternative material to steel that are resistance to corrosion. This paper looked at the use of bamboo and rattan cane as alternative materials to steel in reinforced concrete struts. Fifteen (...
A theoretical investigation has been made of the roles of the degeneracy and the dynamics of electrons and ions on the DIA (dust ion-acoustic) Korteweg-de Vries (K-dV) and modified Kortewegde Vries (mK-dV) solitons that are found to exit in a dusty degenerate dense plasma contain...
In this paper, the modified double sub-equation method is proposed to construct complexiton solutions of nonlinear partial differential equations (PDEs). By means of this method, some new complexiton solutions to nonlinear PDEs are obtained, which are non-travelling wave and vari...
In this paper, electrical characteristics of Double Gate Metal Oxide Semiconductor Field Effect Transistor (DG MOSFET) and that of Gate All Around Silicon Nanowire Transistor (GAA SNWT) were investigated. In particular, the effect of channel length was studied. Full quantum mecha...
The phenomenon of thermal Spreading resistance takes places when two rough solids are brought into contact and heat flow is streamed across their asperities. The purpose of the present study is to investigate the heat conduction and thermal spreading resistance of Half-Spaces and...
The adsorption of 2,4-D (dichlorophenoxyacetic acid) in 4x10-4 and 10-3 mol/l aqueous solutions on carbonized chest nut shell (CCS) was studied at 25ºC. The effect of temperature was also studied at 25 and 35ºC for the concentration of 10-3 mol/l. The adsorption data was modelled...