The research abstract included introduction and the importance of the research, also included display of the problem represented by weakness for the players when performing some of the basic skills in badminton and the shuttle not reaching to the back corners of the court which gives the player the opportunity to win through applying the pressure on the opponent and make him away from the control center(T) which definitely required level of a collection muscular strength contributed in performance perhaps this related to a number of reasons related with weakness in physical changes especially explosive and characterized by speed forces for the badminton players and be acquainted with them and knowing the extent of their effect in performance, based on this the researcher resorted to study the effect of the training units of falling(deep) jump to develop the explosive and characterized by speed forces for the badminton players. The research problem is exclusive by lack of the coaches attention in perfect way to develop the explosive and that characterized by speed forces on which the basic skills of badminton and the reason of the improvement occurred for the experimental community comes as a result of using the independent variable for training units of the falling(deep) jump which effected actively on the players' performance. The researcher has used the experimental method and the research sample was chosen from the young players certified by the Iraqi badminton central union of age groups(14-16) years old affiliated to Al-Athori club amounted (6) players. Physical Education Original Research Paper The research objectives: Setting training units of falling(deep) jump. Identifying the effect of falling(deep) jump training units to improve the explosive and that characterized by speed forces for badminton players Identifying the effect of falling(deep) jump training units on some of functional changes. Identifying of the research The introduction and importance of the research practicing the sport training leads to functional changes in the organs of the body as whole and as a result of practicing the training for along time and regular and rationed method, there occurred functional adaptabilities in various organs of the body in general and especially in heart organ, but these functional adaptabilities occurred either as peripheral or central changes and the central adaptabilities are known that occurred inside the heart vascular system which are as a result of practicing the regular and rationed sport training for long periods which are a collection of factors and psychological changes which effect on the heart muscle ability to obtain blood and pumping it to provide the blood with (oxygen and energy) for the operating muscles and amongst these factors the heart pulse rate the number of the beat also. Upon this concentrated and via the researcher scientific attempt to explore modern training units alternatives via using the falling (deep) jump in light with the kinetic performance paths of its basic skills and using them in means of developing the collection of contributing muscles towards developing the operating muscles in skillful performance and the second importance this study participating in it , is to draw the coaches attention for updated training units on which the training programs depended to develop its physical features of badminton as alternative for other classical training units, in this it is considered constructive study of the coaches work and their training programs and from it could access sound planning state to promote the physical and skillful aspects of the young players and to develop the game and expand its popularity in our beloved Iraq. The objectives: 1-Setting the falling(deep) training units. 2-Identifying the effect of falling(deep) jump training units to improve the explosive and that characterized by speed forces for badminton players Identifying the effect of falling(deep) jump training units on some of functional variables. The research hypotheses: 1-There are differences of statistical significance among the pre and post-tests results for the control and experimental groups the explosive and characterized by speed forces for the badminton players in favor of post-tests. 2-There are differences of statistical significance among the pre and post-tests resulted from some of functional changes of badminton players in favor of post-tests.
Three N-(hydroxylphenyl) dimethylmaleimides were directly prepared in good yields (81-86)% from the reaction of dimethylmaleic anhydride with amino phenols. The prepared imides were esterified to the corresponding benzoates, methacrylates and cinnamates via their reaction with different acid chlorides in the presence of triethylamine. The prepared esters were tested as plasticizers for PVC via preparing of thirty six samples of PVC with the prepared esters in certain weight ratio followed by recording their softening points. Comparison the results with the universal plasticizers for PVC (DOP) and (DBP) indicated that the prepared esters in general have high plasticizing efficiency.
This study explored the development and qualities of the response of electrochemical properties of enrofloxacin-selective electrodes using precipitation based on producing phosphotungstic, after utilizing a matrix of polyvinyl chloride (PVC) and dibutyl phthalate or dibutyl phosphate as a plasticizer. The resulting membrane sensors were an enrofloxacin-phosphotungstic electrode (sensors 1) and an ENR-DOP-PTA electrode (sensors 2). Linear responses of (ENR-DBPH-PTA) and (ENR-DOP-PTA) within the concentration ranges of 2.1×10-6-10-1 and 3.0×10-6-10-2 mol. L-1, respectively, for both sensors were observed. Slopes of 51.61±0.24 and 39.40± 0.16 mV/decade and pH ranges equal to 2.5-8.5
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The turning process has various factors, which affecting machinability and should be investigated. These are surface roughness, tool life, power consumption, cutting temperature, machining force components, tool wear, and chip thickness ratio. These factors made the process nonlinear and complicated. This work aims to build neural network models to correlate the cutting parameters, namely cutting speed, depth of cut and feed rate, to the machining force and chip thickness ratio. The turning process was performed on high strength aluminum alloy 7075-T6. Three radial basis neural networks are constructed for cutting force, passive force, and feed force. In addition, a radial basis network is constructed to model the chip thickness ratio. T
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In this paper, Bayes estimators of the parameter of Maxwell distribution have been derived along with maximum likelihood estimator. The non-informative priors; Jeffreys and the extension of Jeffreys prior information has been considered under two different loss functions, the squared error loss function and the modified squared error loss function for comparison purpose. A simulation study has been developed in order to gain an insight into the performance on small, moderate and large samples. The performance of these estimators has been explored numerically under different conditions. The efficiency for the estimators was compared according to the mean square error MSE. The results of comparison by MSE show that the efficiency of Bayes est
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In this paper, Bayes estimators of the parameter of Maxwell distribution have been derived along with maximum likelihood estimator. The non-informative priors; Jeffreys and the extension of Jeffreys prior information has been considered under two different loss functions, the squared error loss function and the modified squared error loss function for comparison purpose. A simulation study has been developed in order to gain an insight into the performance on small, moderate and large samples. The performance of these estimators has been explored numerically under different conditions. The efficiency for the estimators was compared according to the mean square error MSE. The results of comparison by MSE show that the efficiency of B
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Power-electronic converters are essential elements for the effective interconnection of renewable energy sources to the power grid, as well as to include energy storage units, vehicle charging stations, microgrids, etc. Converter models that provide an accurate representation of their wideband operation and interconnection with other active and passive grid components and systems are necessary for reliable steady state and transient analyses during normal or abnormal grid operating conditions. This paper introduces two Laplace domain-based approaches to model buck and boost DC-DC converters for electromagnetic transient studies. The first approach is an analytical one, where the converter is represented by a two-port admittance model via mo
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A pseudo-slug flow is a type of intermittent flow characterized by short, frothy, chaotic slugs that have a structure velocity lower than the mixture velocity and are not fully formed. It is essential to accurately estimate the transition from conventional slug (SL) flow to pseudo-slug (PSL) flow, and from SL to churn (CH), by precisely predicting the pressure losses. Recent research has showed that PSL and CH flows comprise a significant portion of the conventional flow pattern maps. This is particularly true in wellbores and pipelines with highly deviated large-diameter gas-condensate wellbores and pipelines. Several theoretical and experimental works studied the behavior of PSL and CH flows; however, few models have been suggested to pre
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