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    669 research outputs found

    Biochemical Effects After Thyroidectomy

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    Although the operation to remove the thyroid gland, whether as a result of the multinodular goiter, papillary thyroid cancer or benign thyroid disease.  It has benefits for patients have not responded to antithyroid drugs, or patients with hyperthyroidism. However, removing the thyroid gland leads to changes in some metabolic processes within the body, including: liver function affect, the triglyceride (TGC) and LDL values worsened significantly. In addition, uncontrolled hypertension

    Electrochemical Sensores of Thyroid Hormones : A review of recent advances: Electrochemical Sensores of Thyroid Hormones : A review of recent advances

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    The current review focuses on voltammetric and amperometric sensors measurement methods applied for the determination of thyroid hormones in the past seven years (2016-2023) and It provides an overview of their properties for medical applications. Analytical performance of voltammetric or amperometric chemical and biochemical sensors (linear range and detection limit) are highlighted

    Investigation of the Role of Brassica Roots & Fusarium Mycelium in Accumulation of Gold Particles

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    Abstract In the last decade, the production and use of metal particles in the nanoscale spread are due to the latter efficiency in solving many obstacles in various fields of science, engineering, agriculture and medicine. Gold particles in the small scale show catalytic, magnetic, electrical, mechanical, biological and chemical properties due to the high surface-to-volume ratio where appearance of these particles interact and move higher in properties and strength. Several studies have obtained nano-particles of several types of metals such as silver, copper and gold from plants and microorganisms. The current study, thus, aimed at finding out the ability of the mustard plant root to collect gold particles(Au), as well as the mycelium of the fungus Fusarium oxysporum, where the examination technique using the scanning electron microscope (SEM) was used to confirm the presence and accumulation of gold particles. It is vital using the biological system of the organism. This method is environmentally and friendlydoes not result in toxins or high use of energy. It is characterized by its low cost and high efficiency in obtaining results. Three different concentrations of colloidal gold solution were used in the current study 2, 4, 6 ml, which produced a concentration exceeding 6 ml. In deposition of the largest percentage of gold in each of the plant root and fungal hyphae

    A Comparative Histological And Histochemical Study Of The Tongue Of Local Adult Ducks And Geese

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    Our study aimed to determine the histological and histochemical composition of the tongue of both ducks (Anas Platyrhynchos) and geese (Anserini). Our histological study showed that the mucous membrane covering the tongue in local ducks and geese consists of a multi-layered epithelium covering the lamina propria, which differs in the degree of keratinization according to its location in the tongue, and that the thickness of the epithelium of the dorsal surface of the tongue gradually decreases from the front towards the root, while the epithelium increases in thickness towards the root. The ossified epithelium is located at the top and beginning of the body of the tongue, forming what is known as the nail of the tongue in both ducks and geese. The small and large conical papillae in various parts of the tongue, as well as the filiform papillae, are covered with erosive ossified epitheliu

    DESIGN OF A SCADA SYSTEM FOR A SOLAR PHOTOVOLTAIC POWER PLANT

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    This paper presents the design and implementation of a solar panel data monitoring system using a SCADA (Supervisory Control and Data Acquisition) system. The system is built via the Siemens S7-1200 Programmable Logic Controller (PLC) and programmed using TIA (Totally Integrated Automation) Portal V17 software. The system includes various sensors and instrumentation for monitoring solar panel performance, such as temperature sensors, current and voltage sensors, and irradiance sensors. The PLC collects data from these sensors and transmits it to the SCADA software, which displays real-time data on the graphical user interface (GUI). The system also includes features such as alarms and notifications for abnormal conditions, data logging for historical analysis, and remote access for monitoring and control from a central location. The system's reliability and efficiency are enhanced through the use of the S7-1200 PLC and TIA Portal V17 software, which provide advanced programming and automation capabilities. Therefore, this solar panel data monitoring system provides a comprehensive solution for monitoring and optimizing the performance of solar panel systems, helping to increase efficiency, reduce downtime, and improve overall system performance

    The Impact of Urban Trees on Air Pollution in Kirkuk City: A Gaussian Dispersion Model Approach

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    The city of Kirkuk is facing a real crisis in increasing air pollution due to the oil facilities and the lack of trees and their uneven distribution, which exacerbated the problem. This study aims to demonstrate the effect (size, type, and distribution) of urban trees on air pollution in Kirkuk, with a focus on simulating the dispersion of pollutants resulting from the oil refinery. using the Gaussian dispersion model. We will assess the role of existing trees in reducing pollution and explore the potential benefits of planting new trees and their role in reducing air pollution. The study's results inform urban tree’s role in reducing air pollution and strategies for integrating them into city planning. The Gaussian model adds scientific rigor, accurately simulating and evaluating pollution distribution. This methodology serves as a strong basis for analyzing tree effects on air pollution in Kirkuk and other urban areas, aiding evidence-based decision-making to improve air quality and public health

    Improving the Gradation of Aggregate used in Asphalt Mixtures Using Bailey Method

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    The bailey method of gradation analysis it is one of the techniques used in pavement engineering for evaluating and designing asphalt mixtures based on the particle size distribution. This paper presents a comprehensive review of research conducted on the Bailey technique, focusing on its application and impact in the field of pavement engineering. The review encompasses studies that have investigated the effectiveness of the Bailey technique as a mix design tool, a quality control tool, and a performance assessment tool. Researchers have explored its ability to optimize asphalt mixtures for desired performance characteristics, such as rutting resistance, stability, and durability. They have also examined its effectiveness in ensuring consistency and conformity to specified requirements during asphalt production. Furthermore, the review highlights the correlation between the Bailey technique's gradation data and various performance properties of asphalt mixtures. Researchers have investigated the relationship between particle size distribution and properties like rutting resistance, moisture susceptibility, drainage, and particle packing. These studies have provided valuable insights into the influence of gradation on the performance of asphalt pavements

    A Simulation Model of a System-based Concentrated Solar Power System (CSP) for Maximum Solar Energy Harvesting Applications

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    Solar energy has piqued people's curiosity since the dawn of civilization, and the technology for harvesting it has advanced at a rapid pace. The development of technology to increase the efficiency of the solar system is of critical relevance due to the energy difficulties that civilization has been facing. Scientists have used the solar concentrated system for several years since it allows for the concentration of solar energy into a concentrate, allowing for a significant increase in energy efficiency. A parabolic dish setup is described in this article as a dish-shaped concentrating collector that reflects solar energy onto a receiver located at the focal point. This concentrator is set atop a framework with assumption of a two-axis tracking system to track the sunlight. Typically, the acquired heat is utilized directly by a heat engine constructed on the receiver that travels with the dish. Typically, the acquired heat is utilized directly by a heat engine constructed on the receiver that travels with the dish. The suggested dish could achieve very high temperatures and might be utilized in solar reactors to generate high-temperature solar fuels. Even though dishes are seldom utilized commercially for power production, engines are now favored for power conversion. Consequently, the purpose of this study is to explain the benefits of this technology in a world where fossil fuel usage is a genuine issue that society must address

    Evaluating the Impact of Weather Conditions on the Effectiveness and Performance of PV Solar Systems and Inverters

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    Solar photovoltaic (PV) systems have become an increasingly popular and environmentally friendly source of renewable energy. However, the performance and effectiveness of these systems can be significantly influenced by various weather conditions. This paper aims to evaluate the impact of weather conditions on the effectiveness and performance of PV solar systems and inverters. This paper utilizes a comprehensive dataset of solar irradiance, temperature, wind speed, and other weather parameters collected from multiple locations over an extended period. Various performance indicators, such as power output, efficiency, and reliability, are analyzed and compared under different weather conditions. The findings of this paper reveal the significant influence of weather conditions on the performance of PV solar systems and inverters. It is observed that variations in solar irradiance, temperature can lead to fluctuations in power output and efficiency. High ambient temperatures, for example, can negatively affect the performance of solar panels by increasing the operating temperature and reducing their conversion efficiency. These events can cause physical damage, reduce solar irradiance, and impair the functionality of inverters, leading to a decrease in overall system performance. The research outcomes presented in this paper provide valuable insights for system designers, engineers, policymakers, and investors in the renewable energy sector

    The role of Six Sigma in Promoting the Application of Additive Manufacturing Technology:

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             The current study seek to determine the role of Six Sigma methodology in promoting the implementation of additive manufacturing technology (an exploratory study in the Canadian factory, one of the formations of the General Company for Communications and Power), and based on a basic problem that (Does Six Sigma contribute to enhancing the implementation of additive manufacturing technology?) with the aim of forming a modern industrial environment that is able to produce products that meet the needs of the market in terms of their quality and cost, as well as their suitability to the customer's requirements that change continuously. Then the data was analyzed and the hypotheses of the study were tested using the statistical software package (SPSS V26), and thus the study reached a set of conclusions, the most important of which is that the additive manufacturing technology is the future technology through which resources can be invested and the environment is preserved from pollution, and the Six Sigma methodology has a positive impact on The performance of organizations by adopting it as a main base in formulating effective strategies for the organization, as well as securing sources of obtaining funding Ward available at the lowest possible cost and highest quality target

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