In several countries, residential buildings are responsible for high energy consumption. The majority of is consumed on air conditioning to ensure maximum indoor comfort. Iraq, the demand electricity increases significantly, especially during summer cooling purposes. this paper, two technologies proposed reduce load. These approaches included use phase-changing materials (PCM) in different loca...

I . The effect of dietary copper deficiency on the distribution of Cu, zinc and iron between plasma, various soft tissues and bone was investigated in weanling male rats. 2. The concentration of Cu decreased in plasma, liver, kidney and femur, and the concentration in plasma correlated with that in all three organs. The total amount of Cu in the liver was reduced over the whole depletion period...

When hybrid fibre Reinforced Ternary Blended (HFRTB) concretes were exposed to sustained elevated temperatures for three hours (SET-3hrs), the effect of two cooling regimes (sudden and gradual) was examined. At 100o C intervals, temperature ranges from 1000o C. Traditional concrete is compared ternary blended (TB) (Cement + fly ash GGBFS Cement silica fume), as well fibres (Galvanized iron poly...

Starting materials used were 99.8% pure nickel, 99.9% pure iron, 99.9% pure tantalum, and 99.9% pure molybdenum. The materials in a total weight of 500g were melted with a high-frequency induction furnace in vacuum. The melt was poured into an iron mold with an opening of 20mm diameter and 150mm length. After forging, the ingot was reduced to a thin plate 0.3mm in thickness by rolling and a wir...

Abstract This paper presents a student-designed one-pot electroless deposition of Bi extracted from Pepto Bismol ® tablet by galvanic displacement the Zn coating galvanized iron nail. experiment relies on readily accessible and reasonably safe method materials it has been used during present COVID pandemic as hands-on activity with higher education students (i.e., Junior Senior Chemical Enginee...

This article presents some new experimental data for study the shielding effect of electromagnetic wave. The frequencies of electromagnetic wave are mainly focused on emission of daily electrical equipments, which are normally called “low frequency electromagnetic waves”. In this work, a water pump with maximum magnetic field intensity of ca. 2300 mG was applied as emission source of the electr...

The influence of the curvature of a conductor plate used as a reference in free space method is considered both by experiments and by theoretical computations. First, it is observed that the reflection coefficient varies as much as 3 dB by changing the orientation or the surface of the plate. Next, a numerical simulation is performed using physical optics approximation method. It is confirmed t...

Previous studies showed that temperature and total organic carbon in drinking water would cause chlorine dioxide (ClO(2)) loss in a water distribution system and affect the efficiency of ClO(2) for Legionella control. However, among the various causes of ClO(2) loss in a drinking water distribution system, the loss of disinfectant due to the reaction with corrosion scales has not been studied i...