562,004 research outputs found

    Pengaruh Media Audio Visualterhadap Forwardroll dan Backroll Senam Lantai Peserta Didik

    Get PDF
    The purpose of this study to determine the audio-visual media influence on learning outcomes roll forward and roll back upon the learner SMAN 4 Singkawang class XI IPS I. The method used to describe this research using experimental (one group pretest-posttes design) with descriptive quantitative. Samples to be used in research is 24 people. Based on the results of research conducted it was concluded that the audio-visual media to improve learning outcomes forward roll and a back roll. The results of the study before being given treatment, after that learners are given treatment of the score obtained learners rose to the highest lowest score 6 and 9 with an average of 7.5 for the skills of a forward roll while the roll back is obtained an increase in the lowest score and 5 the highest score 8 with an average of 7.4. thus the average basic motor skills increased 2.8% roll forward and roll back increased 3.5%. Based perhitunngan improvement of learning outcomes obtained results by 59.36% to the increase in the basic techniques of forward roll and 87.34% to the increase in the basic techniques of back roll

    An experimental investigation of meniscus roll coating

    Get PDF
    A two-roll apparatus is used to explore experimentally the detailed fluid mechanics of meniscus roll coating in which inlets are starved and flow rates are small. Both forward and reverse modes of operation (with contra- and co-rotating rolls) are investigated using optical sectioning combined with dye injection and particle imaging techniques. That part of parameter space where meniscus coating occurs is identified by varying the roll separation and roll speeds and hence flow rate and capillary number. Key features of the flow structures identified in the forward mode include two large eddies (each with saddle point, separatrix and sub-eddies), a primary fluid transfer jet and the existence of two critical flow rates associated with the switching-on of a second fluid transfer jet and the switching-off of the primary transfer jet followed by a change in the flow structure. In the reverse mode, the key features are a single large eddy consisting of two sub-eddies, a saddle point and separatrix, a primary fluid transfer jet and once again two critical flow rates. These correspond to (i) the switching-on of a secondary transfer jet and (ii) the disappearance of a saddle point at the nip resulting in the merger of the primary and secondary transfer jets. Measurements of film thickness and meniscus location made over a range of speed ratios and capillary numbers are compared with theoretical predictions. A plate-roll apparatus is used to confirm the presence, for very small flow rates, of a sub-ambient, almost linear, pressure profile across the bead. Investigated also is the transition from inlet-starved to fully flooded roll coating as flow rate is increased and the changes in flow structure and pressure profile are observed

    Perceived Vertical and Lateropulsion: Clinical Syndromes, Localization, and Prognosis

    Get PDF
    We present a clinical classification of central vestibular syndromes according to the three major planes of action of the vestibulo-ocular reflex: yaw, roll, and pitch. The plane-specific syndromes are determined by ocular motor, postural, and percep tual signs. Yaw plane signs are horizontal nystagmus, past pointing, rotational and lat eral body falls, deviation of perceived straight-ahead to the left or right. Roll plane signs are torsional nystagmus, skew deviation, ocular torsion, tilts of head, body, and perceived vertical in a clockwise or counterclockwise direction. Pitch plane signs are upbeat/downbeat nystagmus, forward/backward tilts and falls, deviations of the per ceived horizon. The thus defined vestibular syndromes allow a precise topographic analysis of brainstem lesions according to their level and side. Special emphasis is placed on the vestibular roll plane syndromes of ocular tilt reaction, lateropulsion in Wallenberg's syndrome, thalamic and cortical astasia and their association with roll plane tilt of perceived vertical. Recovery is based on a functionally significant central compensation of a vestibular tone imbalance, the mechanism of which is largely un known. Physical therapy may facilitate this central compensation, but this has not yet been proven in prospective studies

    Pengaruh Penerapan Model Pembelajaran Observasional Bandura Terhadap Hasil Belajar Teknik Dasar Roll Depan (Forward Roll) Ditinjau Dari Tingkat Kelentukan

    Full text link
    Penelitian ini bertujuan untuk mengetahui pengaruh penerapan model Pembelajaran observasional Bandura terhadap hasil belajar teknik dasar roll depan (forward roll) ditinjau dari tingkat kelentukan siswa kelas VII semester I SMP N 4 Busungiu. Hasil penelitian menunjukkan bahwa, (1) Terdapat perbedaan hasil belajar teknik dasar roll depan (forwar roll) yang signifikan antara model pembelajaran observasional Bandura dengan model pembelajaran konvensional, dimana hasil belajar teknik dasar roll depan pada siswa yang mengikuti model pembelajaran observasional Bandura lebih baik dibandingkan dengan siswa yang mengikuti model pembelajaran konvensional, (2) adanya interaksi antara model pembelajaran dengan tingkat kelentukan terhadap hasil belajara teknik dasar roll depan ( forward roll) (3) untuk kelompok tingkat kelentukan tinggi, terdapat perbedan yang signifikan hasil belajar teknik dasar roll depan (forward roll) antara siswa yang belajar melalui model pembelajaran observasinal Bandura dengan model pembelajaran konvensional, dimana untuk kelompok tingkat kelentukan tinggi siswa yang mengikuti model pembelajaran observasional Bandura lebih baik hasil belajar teknik dasar roll depanya dibandingkan dengan yang mengikuti model pembelajaran konvensional, (4) untuk kelompok tingkat kelentukan rendah, terdapat perbedan yang signifikan hasil belajar teknik dasar roll depan (forward roll) antara siswa yang mengikuti model pembelajaran observasinal Bandura dengan model pembelajaran konvensional, dimana untuk kelompok tingkat kelentukan rendah siswa yang mengikuti model pembelajaran konvensional lebih baik hasil belajar teknik dasar roll depanya dibandingkan dengan yang mengikuti model pembelajaran observasional BanduraKata Kunci : Model Pembelajaran, Hasil Belajar, Roll Depan This study aimed to determine the effect of the application of Bandura\u27s model of observational learning on learning outcomes of the basic techniques of front roll ( roll forward ) the level of flexibility in terms of the first semester students of class VII SMP N 4 Busungiu . The results showed that , ( 1 ) There are differences in the basic techniques of learning outcomes next roll ( roll forwar ) significant between Bandura\u27s model of observational learning with conventional learning models, Where the results of learning the basic techniques roll forward the students who follow Bandura\u27s model of observational learning is better than the students who take conventional learning models , ( 2 ) the interaction between learning model with the level of flexibility to the results of the basic techniques learn some vital lessons next roll ( roll forward ), ( 3 ) for a group of high level of flexibility , there is a significantly different learning basic techniques results roll forward (forward roll ) between students who learn through observasinal Bandura\u27s model of learning with conventional learning models , where high flexibility level for the group of students who take Bandura\u27s model of observational learning better results roll depanya learn basic techniques as compared with that following conventional learning model ( t = 12.938 ,

    PENINGKATAN KETERAMPILAN GULING DEPAN PADA PROSES BELAJAR MENGAJAR SENAM MELALUI PENDEKATAN TEACHING GAME FOR UNDERSTANDING (TGFU) DI SD NEGERI MARGAHAYU RAYA 01 BANDUNG

    Get PDF
    Tujuan penelitian ini adalah untuk mengetahui apakah pendekatan Teaching Game for Understanding (TGfU) dapat memberikan pengaruh positif terhadap keterampilan guling depan pada pembelajaran senam lantai di SD Negeri Margahayu Raya 01 Bandung. Metode yang digunakan adalah eksperimen dan observasi. Desain penelitian One-Group Pretest-Posttest Design. Populasi adalah siswa SD Negeri Margahayu Raya 01 Bandung kelas IV, Sampel sebanyak 30 orang siswa yang diambil melalui teknik pengambilan sampel dengan menggunakan semua anggota populasi sebagai sampel (Sampling Jenuh). Instrumen yang digunakan adalah tes guling depan, observasi kepercayaan diri, observasi pemahaman melakukan guling depan, dan observasi pertanyaan tahapan melakukan guling depan. Hasil tes guling depan pengujian data-data tersebut diperoleh angka zhitung 4,334 lebih besar dari ztabel 1,96 dengan demikian hipotesis nol (Ho) ditolak, hasil observasi kepercayaan diri pengujian data-data tersebut diperoleh angka zhitung 4,428 lebih besar dari ztabel 1,96 dengan demikian hipotesis nol (Ho) ditolak, hasil observasi pemahaman melakukan guling depan pengujian data-data tersebut diperoleh angka zhitung 3,396 lebih besar dari ztabel 1,96 dengan demikian hipotesis nol (Ho), hasil observasi pertanyaan tahapan melakukan guling depan pengujian data-data tersebut diperoleh angka zhitung 3,744 lebih besar dari ztabel 1,96 dengan demikian hipotesis nol (Ho) ditolak maka dapat disimpulkan bahwa pendekatan Teaching Game for Understanding (TGfU) memberikan pengaruh yang signifikan terhadap keterampilan guling depan pada pembelajaran senam lantai di SD Negeri Margahayu Raya 01 Bandung ---------- The purpose of this research was to find out whether Teaching Game for Understanding (TGfU) approach provides positive influence for roll forward skill in gymnastics floor study in Margahayu Raya 01 Elementary School Bandung. Experiment and Observation are being used as a method. The research design is One-Group Pretest-Posttest Design. The populations are students from Margahayu Raya 01 Elementary School Bandung, fourth grade. Samples of 30 students were taken through a sampling technique by using all members of the population as the sample (Sampling Saturated). The instrument used is the roll forward tests, observation of confidence, understanding roll forward observation, and questions about roll forward phase’s observation. Roll forward test result obtained number Zcount 4,334 greater than Ztable 1,96 then hypothesis zero (H0) rejected, confidence observation result obtained number Zcount 4,428 greater than Ztable 1,96 then hypothesis zero (H0¬¬) rejected, understanding roll forward learning observation result obtained number Zcount 3,396 greater than Ztable 1,96 then hypothesis zero (H0¬¬), question about roll forward phase’s observation result obtained number Zcount 3,744 greater than Ztable 1,96 then hypothesis zero (H0¬¬) rejected, it can be concluded that Teaching Game for Understanding (TGfU) approach have a significant influence on the learning skills of the roll forward gymnastics floor in Margahayu Raya 01 Elementary School Bandun

    Model support roll balance and roll coupling

    Get PDF
    The design concepts of two specialized wind tunnel model support mechanisms are described. The forced oscillation roll balance mechanism was designed to meet the specific requirement to measure aerodynamic forces and moments to permit determination of the damping-in-roll parameters of winged configurations. A variable speed motor is used to oscillate the model by means of an offset crank. The oscillating motion is resisted by a torsion spring to provide a restoring torque and is attached to the section forward of the strain-gage balance. This spring action allows the model to be oscillated at a frequency for velocity resonance, whereby the mechanical spring and any aerodynamic spring balance. This spring action allows the model to be oscillated at a frequency for velocity resonance, whereby the mechanical spring and any aerodynamic spring balance out the model inertia. The only torque then required to oscillate the model at that particular frequency is equal to that due to aerodynamic damping. The second mechanism, a roll coupling for remotely rotating a model, was designed to invert or roll a model about its longitudinal axis when mounted for testing

    Direct forward gravure coating on unsupported web

    Get PDF
    YesThis experimental study of forward gravure coating considers the effects of operating variables on air entrainment, ribbing instabilities and the thickness of the film formed. The data show that this coating method can yield very thin films of thickness of order of 15 - 20% at most of the equivalent cell depth of a gravure roller. Air free and non ribbed stable uniform films can however only be obtained in a narrow window of operating conditions at very low substrate capillary number (CaS ~ 0.02) equivalent to substrate speeds typically less than 20m/min. The paper draws a similarity with flow features observed with smooth forward roll coating and slide coating. It is shown that the onset of ribbing and the flux distribution between the gravure roller and the substrate at the exit of the nip obey approximately the same rules as in smooth forward roll coating, whereas the onset of air entrainment actually corresponds to a low-flow limit of coatability similar to that observed in slide coating

    Pengaruh Latihan Kelentukan Togok terhadap Kemampuan Roll Depan pada Senam Lantai

    Get PDF
    The research problem of this research was 1). Is flexibility exercises influence to the students ability to roll forward at SMP N 1 Lumar, Bengkayang Regency? The research purpose was to get the result of improving on the effect of flexibility exercises to the students ability to roll forward at SMP N 1 Lumar, Bengkayang Regency. The form of the research was experimental research and the data that used in this research was test. The population of this research was the students of SMP N 1 Lumar, Bengkayang Regency. The sample of this research was the eighth grade students of SMP N 1 Lumar, Bengkayang Regency which number of students 40 students. The instrument that is used in this research was test. The first thing that has been done was (pre-test) to know the students ability to roll forward before given the treatment (before treatment) to the students that has been used as the sample of this research. The research finding shown that the pre-test was 7,725 (the average). The post-test was 8, 97 (the average) so it can called as good category or about 40%. The result of t-test was t arithmetic = 2,161 > t table 2,046. In brief, there is an effect of flexibility exercises to the students ability to roll forward to the students of SMP N 1 Lumar, Bengkayang Regency

    Aerodynamic characteristics of a hypersonic research airplane concept having a 70 deg swept double-delta wing at Mach number 0.2

    Get PDF
    A wind-tunnel of the static longitudinal, lateral and directional stability characteristics of a hypersonic research airplane concept having a 70 deg swept double-delta wing was conducted in the Langley low-turbulence pressure tunnel. The configuration variables included wing planform, tip fins, center fin, and scramjet engine modules. A mach number of 0.2 was investigated over a Reynolds number (based on fuselage length) range of 2,200,000 to 19.75 x 1,000,000 (with a majority of tests at 10.0 x 1,000,000. Tests were conducted through an angle-of-attack range from about -2 deg to 34 deg at angles of sideslip of 0 deg to 5 deg, and at elevon deflection of 0 deg, -5 deg, -10 deg, -15 deg, and -20 deg. The drag coefficient of the integrated scramjet engine appears relatively constant with Reynolds number at the test Mach number of 0.2. Mild pitch-up was exhibited by the models equipped with tip fins. The forward delta, a highly swept forward portion of the wing, was destabilizing. The center fin model has a higher trimmed maximum lift-drag ratio and a wider trim lift and angle-of-attack range than the tip fin model. Both the tip fin models and center fin models exhibited positive dihedral effect and positive directional stability. Roll control was positive for the tip fin model, but yaw due to roll control was unfavorable

    Divided we stand: Parallel distributed stack memory management

    Get PDF
    We present an overview of the stack-based memory management techniques that we used in our non-deterministic and-parallel Prolog systems: &-Prolog and DASWAM. We believe that the problems associated with non-deterministic and-parallel systems are more general than those encountered in or-parallel and deterministic and-parallel systems, which can be seen as subsets of this more general case. We develop on the previously proposed "marker scheme", lifting some of the restrictions associated with the selection of goals while keeping (virtual) memory consumption down. We also review some of the other problems associated with the stack-based management scheme, such as handling of forward and backward execution, cut, and roll-backs
    corecore