80 research outputs found
Pengaruh Latihan Kekuatan Jari-Jari Tangan Terhadap Peningkatan Kemampuan Passing Atas Dalam Permainan Bola Voli Pada Siswa Putra Kelas VIII SMP Negeri 1 Indralaya
No full textPengaruh Latihan Kekuatan Jari-Jari Tangan Terhadap Peningkatan Kemampuan Passing Atas Dalam Permainan Bola Voli Pada Siswa Putra Kelas VIII SMP Negeri 1 Indralaya
No full textThis research aimed to determine the effect of fingers strength training toward fingers overhead passing skill. This research was experimental design. The population in this research was VIII grade male students and the sample were 60 students which selected by random sampling technique (ordinal pairing). This research used one experimental group and one control group. The experimental group was taught by using fingers overhead passing training but control group was without it. The data was conveyed through pre-test and post-test. Instrument of this research was overhead passing test. And then, the data was analyzed by using t-test. Based on the research result, t observed (1.85) was higher than t table (1.673). It can be concluded that H0 was rejected and Ha was accepted. It means that there was significant effect of using fingers strength training toward students’ fingers overhead passing of VIII grade students of SMPN 1 Indralaya
Fartlek Exercises On Aerobic Resistance
No full textThe problem in this research is the level of aerobic endurance of football players at Bina Darma University which is not good. The study was conducted to determine whether fartlek training can increase the aerobic endurance of Bina Darma University football players. This research is an experimental research. The instrument used was the blepp test. The data analysis used SPSS statistics 23. The result of t_ (count) = 11.115> t_ (table) = 1.740 so that it states that fartlek training can increase the aerobic endurance of Bina Darma University football players
PENGARUH LATIHAN CIRCUIT TRAINING TERHADAP PENINGKATAN DAYA TAHAN AEROBIK PEMAIN SEPAKBOLA UNIVERSITAS BINA DARMA
No full textThis study aimed to determine the Effect of Circuit Training Exercises to increase the Aerobic Endurance of Bina Darma University Football Players. This type of research is experimental research. The study sample amounted to 17 people. The instrument used was the BLEP test. The data analysis technique used SPSS statistics 23. The result of this study indicated that circuit training exercise can increase the aerobic endurance of Bina Darma University soccer players. The t test showed that t_ (count) = 6,564> t_ (table) = 1,740 so that the accepted Ha is significant. Suggestion from this research is that trainers can use the circuit training method to increase the aerobic endurance of athletes
Performance investigation of an integrated wind energy system for co-generation of power and hydrogen
No full textIn this paper, a wind turbine energy system is integrated with a hydrogen fuel cell and proton exchange membrane electrolyzer to provide electricity and heat to a community of households. Different cases for varying wind speeds are taken into consideration. Wind turbines meet the electricity demand when there is sufficient wind speed available. During high wind speeds, the excess electricity generated is supplied to the electrolyzer to produce hydrogen which is stored in a storage tank. It is later utilized in the fuel cell to provide electricity during periods of low wind speeds to overcome the shortage of electricity supply. The fuel cell operates during high demand conditions and provides electricity and heat for the residential application. The overall efficiency of the system is calculated at different wind speeds. The overall energy and exergy efficiencies at a wind speed 5 m/s are then found to be 20.2% and 21.2% respectively
PERBANDINGAN PEMBELAJARAN METODE DRILL DAN KOMANDO DALAM SERVICE PENDEK BULU TANGKIS SISWA DI SEKOLAH DASAR
No full textThis study was an experimental study that aims to determine the application method and the method of command drill results in short service badminton game. The subjects were fifth grade students of State Elementary School. Data collection techniques using the "Skills Test Badminton derived from the writings of Frank. M. Verducci. "Data analysis techniques using T-Test, after going through the prerequisite test that is test of normality and homogeneity test. The results showed a very significant improvement. Methods drill an increase of 72.78%, an average increase of 7.28%. Methods of command increased by 48.75%, with an average increase of 4.88%. Based on these descriptions can be concluded that an increase in drill method is greater than the methods of command. Differences increase was 24.03% with an average of 2.40
Physical Fitness Levels of Students in Public Elementary School 8 Semende Darat Laut (Implementation of Physical Education in the New Normal Era)
No full textThe purpose of the study was to determine the level of physical fitness of students at the public elementary school 8 Semende Darat Laut (SDN 8 SDL) in the implementation of physical education in the new normal era of Covid-19. This study used a quantitative descriptive research design with a one-shot case study approach. The population in this study were 95 students of public elementary school 8 Semende Darat Laut (SDN 8 SDL), and the sample in this study were 45 students who were in grade 4, 5 and 6. The research instrument used was the indicators of the Indonesian Physical Fitness Test (TKJI) including 40 meters running, hanging and bending elbows, lying down for 30 seconds, vertical jump, and 600 meters running. The results of the study showed that the level of physical fitness of SDN 8 SDL students for all classes was in a very low condition (VL) with the final TKJI score ranging from 5-9
PENGARUH PENGGUNAAN VIDEO PEMBELAJARAN MATERI SEPAK BOLA TERHADAP HASIL BELAJAR PESERTA DIDIK DI SEKOLAH MENENGAH KEJURUAN KESEHATAN KADER BANGSA PALEMBANG
No full textThe aim of this research is to find out the significant effect of the use of learning videos on the learning outcomes of students in soccer at Sekolah Menengah Kejuruan Kader Bangsa Palembang. This type of research is experimental with the research design used is One Group Pretest-Posttest Design. The subjects in this study were students of class XI Sekolah Menengah Kejuruan Kader Bangsa Palembang, totaling 22 people who were all female students. From the results of research and data analysis, it can be concluded that the hypothesis Ha can be accepted or tcount > ttable (30.53 > 1.721). Thus, it can be concluded that there is an effect of the use of learning videos on the learning outcomes of students in football material at Kader Bangsa Palemban
Pengembangan alat abadi speed blocking sebagai alat bantu latihan menepis penjaga gawang futsal
No full textThe research objectives are 1) producing a abadi speed reaction tool as a tools for training the futsal goalkeeper’s blocking reaction speed. 2) Testing the appropriateness of the product being development. The imstruments used in this study included (1) assement sheets/questionnaires, (2) suggestions. The results of the validation of media experts showed 81%, results of the validation of futsal practitioner experts showed 84%, and results of the validation of measurement test experts showed 89%. The results of the small-scale trial questionnaire showed that score 85% in the very good category, and the results of the large-scale trial showed that score 98,7% in the very good category, can be said to be accepted from the results of large-scale product trials questionnaire conducted by athletes with a score of 98,7% so the product can be sait to be “accepted/eligible” in use
Flow Stability around Forward Facing Steps in Unswept Incompressible Boundary Layers
No full textThe location of laminar to turbulent transition is an important consideration as turbulent flow is associated with higher skin friction drag and, by extension, lower fuel economy. In unswept boundary layers, natural transition proceeds by the amplification of Tollmien–Schlichting waves. Tollmien–Schlichting waves are convective instabilities with spanwise oriented vorticity. The amplification of these instabilities/perturbations is sensitive to roughness elements, such as forward-facing steps. These surface imperfections are inevitable as steps, gaps, and humps are a byproduct of mismatch between panels of a wing. However, their interaction with Tollmien–Schlichting waves is not very well understood. Direct numerical simulation of the flow field around forward facing steps has been performed in this thesis to gain an in-depth understanding of the particular flow features that stabilise or destabilise the incoming Tollmien–Schlichting wave, with respect to a flat plate zero pressure gradient flow. The forward facing step is found to significantly distort the base flow, its effect scaling with the roughness Reynolds number in the upstream regime. This distortion of the base flow is observed to amplify the incoming instability, both upstream and far downstream. At the step location, however, stabilisation or destabilisation can be observed, depending upon the height of the step. The step causes the incoming Tollmien–Schlichting wave to split into two, just upstream of the step, and leads to two counter-rotating structures at the step location. The interaction of these structures influences downstream growth. Localised stabilisation is observed, at the step location, for step heights that are smaller than the boundary layer displacement thickness. Destabilisation is observed for larger step heights. The upstream base flow distortion is due to an adverse pressure gradient imposed by the forward facing step. The magnitude of the pressure gradient is found to scale with the roughness Reynolds number. The upstream amplification is due to the Tollmien–Schlichting wave encountering the distorted base flow. The response of the Tollmien–Schlichting wave to the distorted base flow is observed to scale with its wavelength. The ratio of the roughness Reynolds number to the wavelength (\gls{Rehh}/\lambda) is found to be the governing parameter for the upstream interaction of the step with the instability.Aerospace Engineerin
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