ABSTRACT This paper describes a simple method to design a symmetrical pill box window used in high power klystrons. Analytical formulation is cross validated and fine tuned using commercial codes CST Microwave studio and HFSS. These results are finally tested by a fabricated cold test model. Low RF power measurement results of the cold test […]

ABSTRACT This research aims to study the seasonal variation in water quality parameters of Euphrates River at Najaf Province in Iraq during winter and summer seasons by using statistical test. Six water quality parameters were measured during the period from 2007 to 2012 in January and July. These parameters were hydrogen power (pH), electrical conductivity […]

ABSTRACT A comprehensive numerical analysis has been accomplished for ZnO system based double heterostructure visible light emitting diode (LED) with superior electrical and optical performances. The optimized device with thin active region of CdZnO layer having 15% composition emits bluish electroluminescence around 430 nm, at room temperature with device internal quantum efficiency (IQE) of ~70%  […]

ABSTRACT This article reports the hydrogen storage characteristics of Mg-Based Mn thin film. The Mg-Mn thin films prepared using thermal evaporation method at pressure 10-5torr. The deposited films were annealed in vacuum at constant temperature 500K for one hour to get a homogeneous structure. Annealed thin films have been separately hydrogenated at different hydrogen pressure […]

ABSTRACT An analysis has been carried out to study the effects of thermal radiation and chemical reaction of MHD natural convection flow of a viscous incompressible electrically conducting and heat absorbing fluid past an impulsively moving vertical plate with ramped wall temperature and concentration in a porous medium in the presence of thermal diffusion. The […]

ABSTRACT In software engineering, software testing plays a vital role in improvement of software. In software testing, Test data generation is a standout amongst the most significant and crucial phases. Software testing is not possible without adequate test data. Software testing can be performed by using different test cases like, unit testing, integration testing, or […]

ABSTRACT In this paper, a band notched ultra-wideband (UWB) patch antenna is presented with its circuit modelling. The rectangular patch antenna is designed on dielectric substrate and fed with 50 Ω microstrip by optimizing the width of partial ground, the width of the feed line to operate in UWB. This antenna consists of a radiating […]

ABSTRACT Cloud computing is a nascent technology which widely spreads among researchers. It provides users with infrastructure, platform and software as amenity which is effortlessly accessible via Internet. In cloud computing, there are numerous tasks needs to be executed by the existing resources to attain best performance, shortest response time, minimal total time for completion, […]

ABSTRACT The main objective of the present study was to investigate the synergistic effect of simultaneous use of two reinforcing fillers in rubber compounds based on NBR. Silica was used as reinforcing filler in all samples and the loading content was 25 phr. 3 phr of nanoclay, carbon nanotube and whiskers was used as second […]

ABSTRACT Fly ash is generally used as replacement of cement, as an admixture in concrete, and in manufacturing of cement. Concrete containing fly ash as partial to complete replacement of fine aggregate will improve its strength on long-term basis. In this investigation fly ash is used as sand replacement material. The material mix of proportion […]