Archives-June...  

The adopted strategy to overcome the housing shortage crisis in Iran is the mass production. The way forward to accelerate the mass production, is adopting the industrial building systems with the increased prefabrication. One of the most optimal new building systems is Lightweight Steel Framing (LSF) Technology. Parand Residential Complex as the first serious project to industrialize the construction processes in Iran is facing the various problems during the processes of manufacture and execution of LSF components. The research is to offer an optimized model for the manufacture and execution processes of LSF Technology in the constructive projects. So, the manufacture and execution processes of LSF Technology in the research case-study were taken into consideration to recognize the existing advantages and disadvantages. Finally, offering four strategies to compensate the deficiencies and three strategies to intensify the strengths, a model to coordinate these two processes presented.

We describe various misconceptions and misinterpretations concerning presentation of the hysteresis loop for ferromagnets occurring in undergraduate and college textbooks. These problems originate from our teaching a Theoretical solid state / condensed matter physics (TSSP/CMP) course. A closer look at the definition of “coercivity” reveals two distinct notions referred to as the hysteresis loop: B vs. H or M vs. H, which can be easily confused and, in fact, are confused in several textbooks. The properties of the M vs. H type hysteresis loop are often ascribed to the B vs. H type loops, giving rise to various misconceptions. An extensive survey of textbooks at first in the TSSP/CMP area and later extended into the areas of general physics, materials science and magnetism / electromagnetism has been carried out. Relevant encyclopedias and physics dictionaries have also been consulted. The survey has revealed various other substantial misconceptions and/or misinterpretations than those originally identified in the TSSP/CMP area. The results are presented here to help in clarifying the misconceptions and misinterpretations in question. The physics education aspects arising from the textbook survey are also discussed. Additionally, analysis of the CMP examination results concerning questions pertinent to the hysteresis loop is provided.

The magnetic response of transverse wave propagation of double layered nanoplate embedded in an elastic medium is studied employing nonlocal continuum theory. The displacement equation of nanoplate with magnetic and elastic medium is devised with the help of Lorentz force and Winkler elastic foundation. The frequency equations are acquired for nanoplate with simply supported edges. The numerical result reveals that the magnetic strength and elastic medium increases the frequencies of double layered nanoplates. The perfection of the present frequency value is noted by comparing it with the existing literature.

Pakistan is among the top ten countries in the world with large area under citrus orchards. Punjab province is endowed with one of the best Kinnow varieties of the world and Sargodha district has largest share in area and production. The primary data was collected from two tehsils (revenue units) of Sargodha district, namely Sargodha and Bhalwal. The Value Chain Analysis was performed to investigate the marketing inefficiency of Mandarin trade. The study concluded that by decreasing the number of the intermediaries in both form i.e. open and packed, not only the purchased price of the consumer decreased but also producer received high profit.

The Line graph L(G) of an undirected graph G is another graph L(G) that represents the find adjacencies between the edges of G. In this paper, we find the Maximum and Minimum of total coloring for a certain Line graphs of a snake graph families and further we established the results on maximum number colors required to total coloring to the graph G is denoted by and similarly we color the vertex of a snake graph and obtained certain results and denoted by X_Max^(G)

The difficulty of calculating transient heat transfer in foamed concrete panel is complex due to its porous and multi-phase material nature. This paper reports the basis of one-dimensional Finite Difference method to acquire thermal properties of foamed concrete. Additionally, this paper also incorporates the execution of the method and the validation of thermal properties model of foamed concrete. A one-dimensional finite difference heat conduction programme has been developed to predict the temperature development through the thickness of the foamed concrete slab, based on an initial estimate of the thermal conductivity-temperature relationship as a function of porosity and radiation within the voids. The accuracy of the model was evaluated by comparing predicted and experimental temperature profiles obtained from small scale heat transfer test on foamed concrete slabs, so that the temperature history of the specimen calculated by the programme closely matches those recorded during the experiment.

Decision making method of telecommunications channel throughput distribution based on linear programming and neuro fuzzy predicting tool.

In this paper, various generalized imputation procedures have been suggested and their corresponding families of estimators of population mean have been considered. Asymptotic expressions for biases and mean squared errors have been obtained. Optimum conditions are investigated at which the proposed family of estimators has minimum mean squared errors. It has been shown that the proposed imputation procedures and the resulting families of estimators due to Singh and Horn (2000), Ahmed et al. (2006), Shukla and Thakur (2008) and Pandey et al (2015) are members of the suggested procedures and estimators. The results of this paper are general and of immense useful.

Green leafy vegetables play an important place in a well-balanced and healthy diet Aim: To determine the mineral and anti-nutrient content of fresh GLV, quantify the change on drying Results: Two common (Moringa oleifera and Trigonella foenum graecum) and two uncommon (Boerhaavia diffusa and Trianthema portulacastrum) greens were selected. Their ash content ranged from 1.75±0.19 (T. foenum graecum) to 3.63±0.16 g/100g (B.diffusa) in fresh leaves. In dried leaves the ash was between 10.57±0.19 (M. oleifera) and 18.98±0.26 g/100g. (T.portulacastrum).T.foenum graecum had the least iron (3.79±0.2mg), M.oleifera had the highest (4.43±0.16 mg/100g) iron. Phytate content was 2.46±0.13 (T.portulacastrum) to 5.24±0.20 (B.diffusa) mg in fresh leaves. Conclusion: Drying concentrates the nutrients and antinutrient content

Coal is the major source of electricity in South Africa and a large volume of coal fly ash waste is generated by the thermal fired power stations which have become a serious environmental issue because of the problem of the disposal. The aim of this research is to assess the quality and beneficiation of the coal fly ash samples. The fly ash sample was characterized using analytical techniques such as X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. The morphology of the fly ash is spherical and the XRD identified mullite, gypsum, magnetite, lime, quartz and hematite mineral phases. The elemental composition of the fly ash using XRF containing major elements: SiO2, Al2O3, Fe2O3, CaO, while the minor elements are P2O5, SO3, MgO, NaO, TiO2, and V2O5. The result shows that the coal fly ash sample is class C ash with high pozzolanic properties that is suitable to be used for making concrete or cement.