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Evaluation of A Parabolic Basin Complex Using Porous Aluminum ?Filling In An Absorbent Receiver
Get PDFThis study proposes a detailed PTC model. Our motive was to ensure accuracy while ensuring fast and inexpensive calculations. These tests were performed using aluminum porous media with two operation modes: an evacuated glass absorption tube. Air and metallic aluminum fibers are added inside the absorption tube. To improve the performance of the parabolic basin complex, the model was tested in Kirkuk, Iraq, under actual operating conditions. The results were as follows: Thermal efficiency reached a maximum of 27.51% without any substance at a flow rate of 0.8 LPM and a radiation intensity of 1202 W/m2. However, when including porous media, the maximum efficiency increased to 45.76% at the same flow rate of 0.8 LPM, with a radiation intensity of 1220 W/m2. That is, the results showed an improvement in performance by 18.25%. Therefore, porous materials' permeability and thermal conductivity are essential to determining the temperature gradient. The porous medium's porosity and increased thermal conductivity increased the exit temperature. The results indicated the possibility of using aluminum metallic fibers for the system to improve performance
Intelligent Predictive Maintenance for Urban Energy and Transportation Systems: A Hybrid AI Approach
Get PDFToday's complex urban energy and transportation systems demand new maintenance solutions to keep them running properly. This study develops an AI-driven predictive maintenance solution for electrical substations and HEV batteries using data from the Internet of Things sensors. Our framework uses machine-learning methods such as Bi-LSTM, GRU, and GBT models to spot system weaknesses with higher accuracy. Based on test results Bi-LSTM proved better than other models by achieving a 91% F1 score alongside 4.3% Mean Absolute Error across predictions and anomaly detection. According to the results, the proposed framework lowered maintenance costs by half and proved better than traditional and recent methods. The proposed system combines insights from power substations and develops edge-cloud technologies to better use EV batteries. Real-world systems data validate those reductions in downtime happen together with better system reliability. This system now works in cities, tracks vehicle fleets, and supports smart city construction. The predictive system framework delivers exceptional energy and mobility management while remaining affordable and expandable for future urban infrastructure solutions
Optimizing Indoor Temperature Control Using Genetic Algorithm for PID Tuning
Get PDFThis study was conducted to explore ways to save energy focusing on Temperature control through genetic algorithm (GA)based on the Proportional Integral Derivation controller (PID) to obtain the best PID gain parameters (kp, ki, kd) through which the settling time, steady state error, and overshoot are improved, which showed better performance than using traditional PID because of its fast and sharp control it provided. The best results for the parameters were using integrated time absolute error (ITAE)as a GA objective function where k [0.8598 0.0669 0]. However, by using Integrated of absolute error(IAE), the best results obtained were k [12.9765 0.2534 0], It is possible to improve system’s response from using traditional PID which is considered a long time (more than 25 seconds) as compared to the PID with Genetic algorithm(GA).
The study showed that the best results were obtained using the IAE as an objective function for GA, as the system reached the stable state in the shortest possible time.
Review of the conical pin fin heat sink
Get PDFIn industrial and electronic applications, the research on enhancing the performance of heat sinks is of increasing importance. The objective is to reduce weight and costs while simultaneously improving thermal and hydraulic efficiency. This study provides a thorough examination of theoretical, numerical, and experimental research that pertains to the optimization and design of heat sinks with a variety of geometric shapes. We theoretically derived analytical equations for one-dimensional conductive heat transfer, which facilitated the determination of the optimal dimensions of fins of various types, including rectangular, triangular, vertical, and circular fins, as well as fins with conical, concave, and convex shapes. These theoretical findings established a scientific foundation for the development of fins that optimize thermal efficiency, minimize material consumption and weight, and consider the impact of physical and thermal properties on performance. By simulating heat transfer and fluid flow using sophisticated tools, we designed numerical studies to enhance the performance of heat sinks. These studies evaluated the impact of multiple design factors, such as fin dimensions, number, arrangement, angles of inclination, and different geometric shapes, under a variety of flow conditions. The objective of these studies was to enhance the heat transfer rate and minimize thermal waste, all while creating innovative designs that can operate efficiently under a variety of operating conditions, including natural and forced cooling systems
The Role of Information and Communication Technology in Achieving Career maturity An analytical study of the Opinions of a Sample of Nineveh governorate office employees: The role of information and communication
No full textThe study dealt with two variables of great importance to organizations represented by information and communication technology (as an independent variable) expressed in its dimensions (hardware and equipment, software, applications, human resources, networks and communications) and job maturity (as a dependent variable) represented by its dimensions (career planning, the ability to take Decision, the ability to excel, crystallization of attitudes regarding work, job training) accordingly. The study aimed to determine the role of information and communication technology in achieving job maturity in the Nineveh Governorate Court, reflecting the treatment of a research problem that states: "Is the achievement of job maturity in the researched organization dependent on what it possesses of Expressive dimensions of information and communication technology in the Nineveh Governorate Office. To achieve this, the study adopted a hypothetical scheme that reflects the nature of its hypotheses, which expressed the extent to which the study variables are available and the correlations and influences between them at the macro and partial levels in order to exclude them. For the purpose of analyzing the data obtained, the two researchers relied on a number of methods for describing and diagnosing the variables of the study according to the statistical program (SPSS), as well as the (AMOS) program to test the hypotheses that were prepared to answer the questionsThe study reached a set of conclusions, the most important of which is the presence of a significant effect of the dimensions of information and communication technology combined in the dimensions of career maturity combined, and this indicates that the more dimensions of information and communication technology are available, the more it contributes to enhancing the career maturity of the employees working in the researched organization. With regard to the variables of the study.
Keywords: information and communication technology, hardware and equipment, software, job maturity, career planning, decision-making ability.The study aimed to determine the extent to which information and communication
technology can achieve job maturity in the office of Nineveh Governorate, as it relied on
information and communication technology (as an independent variable) expressed in its
dimensions (hardware and equipment, software, applications, human resources,
networks and communications) and job maturity (as a variable approved (represented by
its dimensions (career planning, decision-making ability, ability to excel, crystallization
of attitudes regarding work, job training) accordingly. Achieving functional maturity in
the researched organization depends on what it possesses of expressive dimensions of
information and communication technology in the Nineveh Governorate Office.
To achieve this, the study adopted a hypothetical scheme that reflects the nature of its
hypotheses, which expressed the extent to which the study variables are available, and
the correlations and influences between them at the macro and partial levels in order to
exclude them. For analyzing the obtained data, the two researchers relied on a number of
methods for describing and diagnosing the variables of the study according to the
statistical program (SPSS), as well as the (AMOS) program to test the hypotheses that
were prepared to answer the questions.
The study reached a set of conclusions, the most important of which is the presence of a
significant effect of the dimensions of information and communication technology
combined in the dimensions of career maturity combined, and this indicates that the
more dimensions of information and communication technology are available, the more
it contributes to enhancing the career maturity of the employees working in the
researched organization. With regard to the variables of the study.
Keywords: information and communication technology, hardware and equipment,
software, job maturity, career planning, decision-making ability
The role of Smart Leadership in Enhancing Talent Management An analytical study of the opinions of a sample of administrative leaders in the General Directorate of Education in Nineveh Governorate
Get PDF ???? ????? ?????? ??? ?????? ????? ???????? ???????? ??? ??????? ?????? ???????? ???????? ??(?????? ??????? ?????? ????????? ?????? ???????) ?????? ??????? ???????? ???????? ??(??????? ???????? ???????? ????????? ????? ???????? ????? ?????? ???????) ?? ???????? ?????? ??????? ?? ?????? ?????? ?????? ?????? ?????? ???????? ???????? ??????? ?? ???? ????? ?? ( 42 ) ???????? ?? ???? ??????? ???? ???? ?????? ??????? ???????? ????????? ??????? (SPSS V.26) ?? ?????? ?????? ?????? ?????? ??? ??? ????? ?? ????? ???? ?????? ?????? ?????? ?????? ??? ??????? ?????? ?????? ??????? ( ?????? ???????) ?????? ????? ??????? ?? ??????? ????????? ???? ??? ???? ???? ??? ??????? ?????? ???????? ???? ????????? ???? ???? ????? ??????? ????? ???????? ??????.The current research aims to test the correlation and influence relationship between smart leadership with its dimensions represented by (spiritual intelligence, rational intelligence, emotional intelligence) and talent management with its dimensions represented by (attracting talents, retaining talents, developing talents, managing and evaluating talents) in the General Directorate of Education in Nineveh Governorate. And the analytical approach was adopted for the data collected from a sample of (42) leaders, through a questionnaire prepared for this purpose. And the ready-made statistical software (SPSS V.26) was adopted in testing the research hypotheses, and it reached several results, the most important of which is the existence of significant correlations and influence between smart leadership in terms of its dimensions (combined and individual and the enhancement of talent management in the researched organization, and in a manner that presented several necessary proposals for the organizations in general and the researched in particular with regard to the two research variables and the relationship between them
The Quality of the Marketing intelligence System and its Role in Drawing consumer behavior paths an analytical study of the opinions of a sample of Functional staffing in several commercial malls in the City of Sulaymaniyah
Get PDF ??? ????? ??? ???? ??? ???? ???? ??????????? ????????? ??????? ??????? (?????????? ?????????? ????????? ???????? ?????) ?????? ?????? ??????? ?? ???? ?????????? ????? ??????? ??????? ?? ??? ??????? ???????? ?? ????? ??????????? ??????? ????? ????? ???????? ?????:(?? ????? ???? ??????????? ????????? ??? ?? ???? ????????)? ????? ?????? ?????? ????????? ?????? ??? ????????? ????? ????? ?? ??? ???????? ??????????? ?? ???? ??? ???? ??????? ????? ?? (101) ????? ?? ???????? ???????? ?? ??????? ???????? ? ??????? ???????? ???????? (SpssV.26 ) ?? ?????? ??????? ?? ???? ????? ???????? ???????? ????? ??? ??? ????? ???? ??? ???? ?????? ?????? ?????? ?????? ??? ???? ???? ??????????? ????????? ????? ???????? ? ???? ??? ???? ???? ?????? ?? ????????? ?????? ???????? ???????? ???? ?????? ?? ????? ??????? ?? ????? ??????? ?? ?????????. The research sought to demonstrate the impact of the quality of the marketing intelligence system in terms of its dimensions (tangibility, responsiveness, reliability, care, trust) as an independent variable on consumer behavior as a dependent variable in some commercial malls in the city of Sulaymaniyah.. The research problem was crystallized by the following question: (Does the quality of the marketing intelligence system have an impact on consumer behavior), and the descriptive analytical approach was adopted. The research relied on the questionnaire as the main tool in collecting data and information, as it was distributed to a random sample consisting of (101) individuals from the functional staff in commercial malls, and used the statistical program (SpssV.26) to test the hypotheses by analyzing the collected data, and the research reached several results that confirmed existing significant correlations and influences between the quality of the marketing intelligence system and consumer behavior, and in a way that a set of important proposals were presented to the researched organizations, enabling them to achieve their goals in managing their relationship with their consumers.
The Role of Artificial Intelligence in Delivering Library Services: a prospective study
Get PDF ???? ??? ????? ??? ????? ????? ?????? ????????? ?????????? ?????? ?? ????? ???? ????? ????????? ????????? ??????? ??????? ?????? ?????? ?? ????? ??? ????? ?? ???? ??????? ??? ?????? ????????? ??????? ????????? ?? ???? ?????? ?????????. ??? ????? ??????? ??? ????? ????? ??? ??????? ?????? ????????? ?? ????? ????? ????????? ????????? ????? ??????? ??? ???? ????? ???????? ????????? ?? ?????? ?? ???? ????? ??? ?????? ???????? ???? ????? ??? ?? ??????.This research highlights the importance of artificial intelligence and smart robots in providing the best library information services. The researcher employed a descriptive approach by reviewing Arab and international studies in artificial intelligence. The study concluded that it is essential to utilize artificial intelligence in delivering library information services. Furthermore, the researcher recommended overcoming fears surrounding its use to fully benefit from its advantages, by looking at successful global experiences and applying them accordingly.
The impact of e-wallets in digital finance
Get PDF The research aims to shed light on an important tool that helps in implementing digital finance, a field of interest to researchers, companies, and individuals. This tool is the electronic wallet, which provides features that facilitate digital financial transactions for large segments of society without the need for a dedicated bank account. It can be used with a smartphone with a local phone number and a communication network in any geographical area. The electronic wallets used were the Zain Cash wallets, provided by the Zain Iraq mobile network. The research used a quantitative analytical and statistical approach by collecting real quantitative data from the Central Bank of Iraq's website, preparing it, and testing a simple linear regression analysis statistically using EViews 10. Microsoft Excel 16 was also used to prepare the data and calculate the natural logarithm to achieve the best results in the statistical test. The results concluded that the use of electronic wallets has a statistically significant impact on enhancing digital finance. The research proposes testing a larger number of electronic wallets to determine their impact on digital financial inclusion
Studying of- qualitative-properties-of- gelatin-extracted from- bovine-hides as-by-product and-marshmallow made from it
Get PDFLeaving animal tissue waste in the form of waste after slaughter pollutes the environment, so one of the goals of this study is to try to use it to make gelatin. Other goals include examining the functional, physical, and chemical properties of gelatin, comparing them to commercial gelatin, which has practical and economic value and researching some of the characteristics of marshmallows made from it. The findings indicated that the viscosity, in comparison to commercial gelatin, which reached 4.1°cP, hide gelatin's gel strength, elasticity, cohesiveness, melting point, and gelation dropped to 3.5 cP, 271.2 g, 5.00 mm, 0.90, 29.00, and 14.57°C, respectively. cP, 446.6 g, 5.07 mm, 0.99, 32.67, and 17.67 °C, the pH values of skin gelatin were higher, at 5.60 and 4.50, respectively. After 30 and 60 minutes, the gelatin's hide expanded and stabilized the foam more than the commercial gelatin (75.25, 90.96, and 84.75%, respectively) (63.37, 90.91, and 87.88%, respectively).This study discovered 18 distinct types of amino acids, including threonine, tyrosine, asparagine, aspartic acid, leucine, phenylalanine, serine, glycine, histidine, lysine, alanine, arginine, cysteine, valine, isoleucine, methionine, proline and hydroxyproline. The gelatin's hide had lower levels of these amino acids than the commercial gelatin. In contrast to the commercial marshmallows, which achieved the same qualities of 589.5 g, 4.7 mm, and 0.87, the factory-made marshmallows' gel strength, elasticity, and cohesiveness were poor, measuring 465.8 g, 4.4 mm, and 0.87, respectively. The marshmallow sample prepared from commercial gelatin T0 received the highest marks for all qualities in the sensory evaluation, followed by the marshmallow sample made from gelatin from cow hides (T1).This means that it obtained great pleasure scores that were almost similar to the marshmallows made from commercial gelatin; this is due to the properties of the hide gelatin that are similar to those of commercial gelatin. Therefore, gelatin's hide, as an inexpensive by-product that can be used as a stabilizer, thickener and foaming component in many foods, as well as other applications