Wasit Journal of Engineering Sciences

Based on client/server architecture concepts, this research suggests a method for creating a multicomputer-multicore distributed memory system that can be implemented on distributed-shared memory systems. Both of number of the participated computers and number of existed processors for each of these computers, this research was depended with the specific design and its implementation. The suggested system has two primary phases: monitoring and managing the programmes that may be executed on multiple distributed-multi-core architectures with (2, 4, and 8) CPUs to perform a certain job. There might be a single client and unlimited servers in the network. The implementation phase relies on three separate scenarios covering most of the design space. The suggested system can determine the start time, duration, CPU use, kernel time, user time, waiting time, and end time for each server in the system. Single-Process Single-Thread (SPST) is considered a possible situation while developing User Programmes (UPs). The findings confirmed that more processing power (more servers and more processors on each server) increases the speed at which tasks can be solved. There was a 2.877-fold gain in task processing speed after considering three different possible SPST UPs situations. The C# programming language is used to create this system.

The rapid advancement of mobile technology is closely tied to developments in electronic circuit designs and computer science. As a result, it is important to monitor the progress of antenna systems, which form the foundation of wireless technology. Microstrip patch antennas have emerged as a leading design in modern communication methods due to their small size, low cost, and ease of manufacturing. Over the past 40 years, numerous studies have been conducted on antenna systems, and this review article provides a comprehensive overview of the earlier and more recent achievements in microstrip patch antennas in the 60 GHz band, which is a crucial frequency range for fifth-generation (5G) technologies. This article discusses mm-wave antennas operating at 60 GHz and provides brief descriptions of their properties, construction techniques, and some related difficulties.

Due to the obvious rise in electrical energy demand, primary energy resources such as oil, gas, and coal, which are used to get the electrical energy, are depleting. Most primary energy sources available today come with environmental issues and high extraction costs. Therefore, increasing the utilization of renewable energy resources (RES) is considered one of the most effective solutions to address these challenges. Among the various RES options, photovoltaic power systems (PVPS) are commonly employed as they provide electrical energy without causing environmental issues. However, due to the relatively high costs of PVPS, conducting feasibility studies is crucial for implementing major RES-related systems. These studies involve various proposals that play a crucial role in the formation of PVPS. The methodology adopted in this study is based on a simulated software program called PVsyst incorporates features of the system being used and real-time meteorological variables from Visual Crossing Weather. Parameters such as tilt angles, solar radiations, power production, temperature, humidity, wind speed, and other factors are considered in investigating the selection of optimal locations for the proposed PVPS system. Western Iraq was the best in all respects, but southern Iraq was the worst compared to the east or north parts of the country. Findings are then reviewed for four major cities in Iraq to determine the best city for solar power plant installation, along with the characteristics of each city.

Industry discharges, home effluents, and/or urban runoff can all introduce polyaromatic hydrocarbon compounds (PAHs) into a treatment center. Regrettably, due to their chemical stability and resistance to biological degradation, PAHs are regarded as organic pollutants that persist. As a consequence, PAHs have indeed been identified as a possible source of skin, lung, and bladder cancer in humans. Due to PAHs' potential to cause cancer and/or mutation, their residues in treated wastewater are now subject to stricter legal regulation. adsorption ,membrane filtration, coagulation, electrocoagulation, flocculation, advanced oxidation reactions, phytoremediation and bioremediation process are some of the techniques used to remove PAHs from wastewater. In order to reduce environmental contamination, it is important to study different treatment technologies to treat wastewater. The aim of this paper is to highlighting and discussing some of treatment technologies for removing PAHs.

This paper numerically investigates the effect of sectional shape on the structural behavior of short concrete columns when subjected to axial loading. Seven concrete columns that possess the same cross-sectional area, longitudinal reinforcement ratio, tie-bar diameter, and spacing are analysed via Abaqus software. The concrete compressive strength is equal for all columns. The loading is applied at the plastic centroid of the cross-section. The results show that the plus-shaped cross-sectional column sustains the highest load, while the T-shaped section bears the lowest loading. The plus-shaped, square, rectangular, and circular columns endure a higher loading than the T-shaped ones by 12.3 %, 10.7 %, 10.7 %, and 8.7 %, respectively. Concerning the longitudinal displacement, the T-shaped column exhibits the highest shortening, while the octagonal section shows the minimum shortening. Failure of all columns occurs due to the yielding of the longitudinal bars, followed by a fracturing of the concrete. All columns roughly show the same cracking load, while the T-shaped section exhibits a higher displacement than others at the cracking state, followed by an L-shaped column. However, all other columns show the same longitudinal displacement at the cracking load.

Wet-mix shotcrete is often used as a placement method in tunnelling and ground support. However, to date, only a limited number of studies have been identified the roles of waste plastic fiber (WPF) on wet-mix shotcrete mixtures. This experimental study show the flexural performance of reinforced shotcrete concrete members (beams) having waste plastic fiber, which may be considered as a new study. In order to achieve that, a manufacturing of wet-mix shotcrete machine has been developed to product special wet-mix shotcrete that will be used to cast reinforced shotcrete concrete members containing waste plastic fiber. Extensive attempts were done in this project to generate a special wet-mix shotcrete combinations using locally sourced waste materials like beverage bottles. The qualities of WPF shotcrete concrete (SC) were investigated in terms of fresh, hardened, mechanical, and bending behaviour, with extensive results analysis. Five SC formulations (0.25, 0.5, 0.75, 1.0, and 1.25) percent WPF content, as well as the control shotcrete (SC0.00), were used in the experiments. In addition, the flexural behaviour of SC beams casted from the same waste materials was investigated. The results revealed that all SC beams had almost similar flexural behaviour when compared to the creation of crack patterns, as well as the ductility index and stiffness. The maximum ductility index was 2.29 for SC0.25, while the minimum stiffness was 1.31 for SC 1.25 beam. The flexural resistance of SC beams show in beams deflection state, the primary crack with presence the waste plastic fibers was small, because of the resistance of plastic fibers to tensile stresses happening at a moment of growth the crack. It also shows that adding WPFs to SC up to (Vf=1%) results in a rise in the loads that cause initial cracks when compared to beams made with reference mix.

This research addresses the importance of visual sustainability as an essential element in city centre renewal projects, and its role in enhancing the visual quality of urban centres, as most traditional cities suffer from increasing challenges in facing urban renewal processes due to various interventions, which may lead to the loss of the city’s cultural and visual identity. The research aims to understand how to achieve visual sustainability in the centre of the heritage city of Al Kut as a case study and the impact of this on the quality of life and community interaction.
The study area was analyzed using the SWAT analysis method, in addition to a literature review on the topic, observation, interviews with key stakeholders involved, and analysis of existing data and documents. The research concluded that focusing on visual quality indicators can enhance identity, heritage, aesthetics, and quality of life in cities, as the results showed a positive relationship between visual quality indicators and the clarity of the urban environment. Therefore, enhancing visual sustainability in the traditional Kut city center requires focusing on three main indicators that can be achieved by using sustainable local materials, preserving cultural and heritage landmarks, and integrating the urban design process with community participation in planning, design, implementation, and implementation. Evaluations

Over the past decades, there has been a growing interest in environmental issues realizing that humanity depends on the environment and that this environment has been constantly exposed to processesthat could threaten the future of humanity. Cities emerged as the most important cause of pollution because they are the place where most industrial goods are produced and consumed. It was also found that a large percentage of the problems of environmental pollution was the result of the failure of the planning authorities in the implementation of the master plan originally laid out to control and control the city. We do not see a reaction from the residents of the region, despite the obvious problems in the study area, which include social and economic problems as well as environmental problems. On the contrary, many people want industrial activities to improve Value of their properties.
The best way to solve urban areas\' problems is at the planning stage

Abstract In both the agricultural and industrial sectors, pumping water is essential. Due to its arid climate, our Saharan area has a substantial solar energy resource, making constructing a PV solar irrigation system possible. Given solar resources\\\' unpredictable and intermittent nature, it is imperative to set up a system that permits optimal usage. This study aims to design and simulate a solar pumping system\\\'s effective nonlinear direct torque command. A solar generator provides an asynchronous three-phase machine coupled to a centrifugal pump as part of the system. MPPT monitors the boost converter via duty cycle. The solar generator\\\'s functioning at full power will be ensured. The first uses PSO in the MPPT system to supply the motor pump with three phases of power. The second one employs direct torque command (DTC) to regulate the operation of a centrifugal pump coupled with an induction machine. More advancements will be made to the DTC scenario. The proposed mathematical model of the solar irrigation system was simulated using a MATLAB simulation environment, adopting accurate data provided by Fadak Farm. The maximum power extracted from PV tends to peak at 280 Wp with the assistance of particle swarm optimization that energizes the use of the centrifugal pump for the proposed irrigation system. It is evident from numerical simulation results based on accurate input data that the power extracted from PV solar is positively affected by solar radiation and surface temperature variations. It is clear from simulation results that the speed of three–phase I.M motor converges to 22.5 rad/sec, and water flow pumping by centrifugal is decreased and increased, converging to 7.5 *10-8 m/s with the variation of solar irradiance.