931 research outputs found
Team Handball World Cup Championship 2013 - Analysis Study
The world cup of men’s handball team championships was analysed using data from all matches in order to determine tactical differences at the elite level. The first aim of this study was to conduct a technical analysis of current handball and to determine factors related to success in this sport discipline. The second aim was to compare the data of first eight teams with other next teams. An analysis of the performance of the participating teams’ video tapes and CD’s, in the collection of matches, was completed on all the teams taking part in the World Cup Handball Championship 2013. This technical analysis also used cumulative statistics from the International Handball Federation. There were 24 teams in this competition, these were classified participating 2013 into three groups according to the final classification of the winning teams. Variables were identified relating to results of matches (win or lose), and data collection of games was completed by selecting certain codes for each variable of the study variables. The variables included:- Total shots, Total successful shots, Breakthroughs, Breakthroughs successful, Fast break successful, Fast breaks, Red C, Yellow C, 2Min, Steal, Blocked, Assist, Tech. Faults, 6M shots, 6M successful shots, Wing shots, Wing successful shots, 9M shots, 9M successful shots, 7M shots, 7M successful shots. The technical variables used to compare the teams included: the average number of shots, the efficiency of shots, the efficiency of breakthroughs, fast break goals per team, the efficiency of fast breaks, the average number of 7M shots, the efficiency of 7M shots, the average number of 6M shots, the efficiency of 6M shots, the average number of 9M shots, the efficiency of 9M shots, the average number of wing shots, the efficiency of wing shots, offence (The average number of tech faults, the efficiency of tech faults, the average number of assist, the efficiency of assist), defense ( The average number of blocked, the efficiency of the average number of steals, the efficiency of steals), and penalties (2M, yellow card, red card). This technical analysis used cumulative statistics from the International Handball Federation. ANOVA revealed significant differences between the first eight teams in the World cup championships 2013 and their counterparts in the other two groups (group two, teams from 9-16 and group three, teams from 17-24) in terms of several technical variables. The results showed that the above various affected the ranking in favor of the world cup teams in significant international teams
Affordable interactive virtual reality system for the Dynamic Hip Screw surgery training in vitro
Interactive virtual reality systems provide safe and cost-effective training environment to improve the technical skills and competence of surgeons. The trainees can have as many practice sessions, without need to the trainer all the time, before even start carrying out the procedure on any real patient. In this paper, we present an affordable interactive virtual reality system for the Dynamic Hip Screw (DHS) surgery training in vitro, through 3D tracking. The system facilitates a safe (in vitro / off patient) training to improve the cognitive coordination of trainees and junior surgeons, in particular the Hands, Eyes and Brain coordination. The system is based on very cheap commercial off-the-shelf (COT) components, which are very affordable, and needs minimum setup effort and knowledge. It also provides a range of visual and quantitative feedback information and measures, such as position, orientation, insertion point, and depth of drilling. It is envisaged that improving this level of coordination, through the training system, will contribute to reducing the failure rate of the DHS procedure. This means better treatment for patients and less costs for the Health services systems (e.g. UK's NHS system)
GPU-Based Volume Rendering of Noisy Multi-Spectral Astronomical Data
Traditional analysis techniques may not be sufficient for astronomers to make
the best use of the data sets that current and future instruments, such as the
Square Kilometre Array and its Pathfinders, will produce. By utilizing the
incredible pattern-recognition ability of the human mind, scientific
visualization provides an excellent opportunity for astronomers to gain
valuable new insight and understanding of their data, particularly when used
interactively in 3D. The goal of our work is to establish the feasibility of a
real-time 3D monitoring system for data going into the Australian SKA
Pathfinder archive.
Based on CUDA, an increasingly popular development tool, our work utilizes
the massively parallel architecture of modern graphics processing units (GPUs)
to provide astronomers with an interactive 3D volume rendering for
multi-spectral data sets. Unlike other approaches, we are targeting real time
interactive visualization of datasets larger than GPU memory while giving
special attention to data with low signal to noise ratio - two critical aspects
for astronomy that are missing from most existing scientific visualization
software packages. Our framework enables the astronomer to interact with the
geometrical representation of the data, and to control the volume rendering
process to generate a better representation of their datasets.Comment: 4 pages, 1 figure, to appear in the proceedings of ADASS XIX, Oct 4-8
2009, Sapporo, Japan (ASP Conf. Series
A standard for teaching technical competencies of physical education in Egypt according to ISTE (NETS-T) standards
Technology application and internet services are prominent developments in the field of global educational systems. These developments have imposed a change in the role and responsibilities of faculty members and the need to possess technical competencies. Faculty members must apply modern learning theories and organize their learning and evaluation plans based on interactive electronic resources. This study first aimed to suggest a standard of technical teaching competencies for faculty members in physical education under the standards of the International Society for Technology in Education for Teachers (NETS-T). Second, our purpose was to identify the degree to which faculty possess these competencies. The main study involved 812 participants. The exploratory study survey sample consisted of 200 faculty members. The data collection tool consisted of a questionnaire in the form of an opinion poll that included 90 items representing the proposed educational technology competencies within 20 fields representing 5 standards defined by the International Society for Technology in Education for Teachers (ISTE) (NETS-T), 2008. The data collection tool (questionnaire) was evaluated by experts. The exploratory and basic study were carried out using an electronic copy of the questionnaire prepared on Google Forms, and the participation link was sent via emails
New Passive Cooling as a Technique for Hot Arid Climate
Cooling of buildings is an essential target for engineers and builders in the hot arid climate of Egypt. New cooling system was integrated into a single room built in Assiut University (El-Gorib site) in Assiut, Egypt. A passive cooling technique was integrated inside a short wind tower made from expanded paper (wet pad) 0.1 m thick. A water tube was installed on the top of the expanded paper with small nozzles. The results show that outlet air temperature from the wind tower is 27.3°C. The calculated predicted mean vote (PMV) is within the recommended range (−0.5 < PMV < +0.5). This indicates that occupants remain satisfied with indoor thermal environment after using the passive cooling system and the difference is nearly 6–7 K between outdoor and indoor. The system achieves the acceptable airflow rate with an average of 450 ppm for CO2 concentration during daytime. The relative humidity did not exceed 57% most of the time. The maximum airspeed inside the solar chimney was 3.5 m/s under the effect of a high solar radiation of 890 W/m2. The findings show that solar chimney with passive cooling tower design (SCPC) system achieves comfortable thermal conditions with a significant improvement in building energy conservation
Series Solutions of Multi-Layer Boundary Value Problems
It is well known that differential equations (DEs) play an important role in many sciences. They are mathematical representations of many physical systems. By studying such DEs, one gains many important insights about the physical system. Solutions of DEs provide information on the physical system behavior. As many physical systems are nonlinear in nature, this naturally gives rise to nonlinear differential equations (NLDEs). Such NLDEs are, in most cases, hard or sometimes impossible to solve analytically. In such situations, we resort to numerical techniques to approximate the solutions. The purpose of this thesis is to consider nonlinear multi-layer boundary value problems and seek approximate solutions. Many methods exist in the literature to numerically solve nonlinear boundary value problems. However, only few papers dealt with nonlinear multi- layer boundary value problems. In this work, we employ the homotopic analysis method (HAM) as the method of choice. We consider a real physical system dealing with the fluid flow in multi-channel porous media whose governing equations is exactly a nonlinear multi-layer boundary value problem
The impact of the five-cycle learning strategy using some mental maps in learning the skill of reception and preparation in volleyball
The study aims to use a new strategy applied through the preparation of special educational units using the strategy of the five-year learning cycle, which is helpful in learning the skills of preparation and reception in volleyball. The article utilized the experimental method for its relevance to the research problem nature. The research sample was represented by students of the second stage in the Department of Physical Education and Sports Sciences - College of Knowledge University. Their number was (130) students divided into two groups, the first experimental group using the strategy of the five-year learning cycle, and the second control group using the adopted method. By the teacher of the subject, the skills of preparation and reception were chosen in the flying way, and the selection of appropriate tests for these two skills. The tools and means used, and then the tribal tests through which the equivalence was conducted. Then the main experiment was applied by applying the educational units to the experimental group. Then the researcher conducted the post-tests and the use of statistical means. The conclusions reached by the researcher were that there is a positive effect of using the cycle strategy The quinquennial learning in learning the skills of preparation and receiving the transmission with volleyball for students. There was an effect of the educational units that were developed for the stages of the strategy of the five-year learning cycle for the skills of preparation and reception with the ball the plane
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