The study of history has begun to become increasingly important for those interested in the field of education in general, and physical education and sports sciences in particular. It is a recent study of the past and relying on it. Therefore, studying the history of sports for people with disabilities and their development is of great importance, as it is one of the means to measure the extent of development of societies and their culture in this field. Weightlifting is a sport for people with motor disabilities, and the way to play is for the contestant to lie on the bench (ping bar) and most often the legs are tied to the bench to ensure that the hip and legs do not contribute to the lifting process with the arms, when the player grabs the iron bar (bar) and pulls it to the chest and its stability on it, then push it up without the inclination of the barbell, and the attempt is considered a failure if the player is unable to push the barbell up, or the inclination of the barbell occurs during the push, or raise one side without the other. The study aimed to track the historical process of the participation of weightlifting players with a motor disability weighing 49 kg in the Iraq Clubs Championship for the period (2019-2022), and to identify the most important achievements for weightlifters with motor disabilities, and to analyze and criticize the most important reasons for the level development of weightlifting players from People with motor disabilities, and the two researchers relied in collecting data, information and results on the historical and analytical approach based on a number of references related to the problem of the study, as well as the documents of the Iraqi Paralympic Federation for weightlifting, and included the study community and appointed by weightlifting club players and participants in local tournaments for the period under study. In light of the obtained results, the two researchers came out with a number of conclusions: The participation of weightlifters with motor disabilities was at a good level, as there is an increase in the number of players participating in the tournament, and there is a noticeable increase in the level of lifts recorded for weightlifters with disabilities. Mobility handicap, first place holders. While the most important recommendations are: It is important to follow the historical course of the sports of people with motor disabilities by codifying and objective analysis of the participation and achievement of the players, because these groups represent constructive energies that reflect the development and advancement of Iraqi society, and the need to highlight the sports of people with disabilities by officials and specialists in all state institutions to provide all means of care and attention for them, as well as sports support by preparing all sports supplies and equipment that push them to achieve advanced achievement
The matter of handwritten text recognition is as yet a major challenge to mainstream researchers. A few ways deal with this challenge have been endeavored in the most recent years, for the most part concentrating on the English pre-printed or handwritten characters space. Consequently, the need to effort a research concerning to Arabic texts handwritten recognition. The Arabic handwriting presents unique technical difficulties because it is cursive, right to left in writing and the letters convert its shapes and structures when it is putted at initial, middle, isolation or at the end of words. In this study, the Arabic text recognition is developed and designed to recognize image of Arabic text/characters. The proposed model gets a single l
... Show MoreTitanium alloy (Ti-6Al-4V) samples were nitrided in low pressure (1.3, 3 mbar) dc-glow discharge plasmas of nitrogen. The treating time was 5, 10 and 15 hour and the temperatures range of the samples during the nitriding process was close to 800oC. The obtained microstructures of the nitride layers were studied by x-ray diffraction and optical microscopy. The ε –Ti2N, ζ-Ti3N3-x and η-Ti3N2-x.phases were formed and addition to the solid solution of nitrogen in titanium, α (Ti,N). Micro hardness measurements exhibit an increment for the Ti-alloy specimens which nitrided at 800oC for 10 and 15h.Corrosion measurements were obtained for the Ti-6Al-4V alloy in Ringer solution after plasma nitriding. The clear improving in the corrosion r
... Show MoreAs one type of resistance furnace, the electrical tube furnace (ETF) typically experiences input noise, measurement noise, system uncertainties, unmodeled dynamics and external disturbances, which significantly degrade its temperature control performance. To provide precise, and robust temperature tracking performance for the ETF, a robust composite control (RCC) method is proposed in this paper. The overall RCC method consists of four elements: First, the mathematical model of the ETF system is deduced, then a state feedback control (SFC) is constructed. Third, a novel disturbance observer (DO) is designed to estimate the lumped disturbance with one observer parameter. Moreover, the stability of the closed loop system including controller
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This work deals with a numerical investigation to evaluate the utilization of a water pipe buried inside a roof to reduce the heat gain and minimize the transmission of heat energy inside the conditioning space in summer season. The numerical results of this paper showed that the reduction in heat gain and energy saving could be occurred with specific values of parameters, like the number of pipes per square meter, the ratio of pipe diameter to the roof thickness, and the pipe inlet water temperature. Comparing with a normal roof (without pipes), the results indicated a significant reduction in energy heat gain which is about 37.8% when the number of pipes per m
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