INVESTIGATION OF STAIR FLIGHT OVERCOMING BY JUMPING ROBOT

In the paper there is considered a stair flight overcoming by a wheel jumping robot during lifting upon it. The robot consists of a casing, an accelerating module ensuring device separation from a surface and a wheel platform at the expense of which a robot moves on even surfaces and it is positioned in front of a stair flight. The latter is characterized with the footstep number, a length and a height of each footstep that defines the number of robot jumps (from one up to footstep number), and also a height and a length of each jump. In the work there are introduced and described basic parameters of a stair flight, jump characteristics and also the limitations imposed upon a rate of robot separation from a surface and an angle of a slope of its vector and specified by staircase parameters. As qualitative criteria of the stair flight overcoming are energy and time spent at that. As a result of the computational modeling it is determined that at stair flight jumping over in a single bound the required rate of separation of the jumping robot from a surface and also energy and time spent for a jump increase with the growth of the staircase number in the stair flight at that a rate and time – according to curvilinear laws, and energy – proportionally to the number of staircases in the stair flight. Besides, there are investigated six versions for jumping robot to overcome stair flights with the different number of staircases, at that the number of staircases to jump over in a single bound at each version of jump series fulfillment is equal. At that there is no clear regularity between energy and the number of jumps carried out (and staircases to jump over) and time spent increases with the increase of the jump number. The optimization of jumping robot motion on a stair flight from the point of view of the minimization of time and energy consumption is carried out as a result of which the necessity to overcome a staircase in one bound irrespective of the number of footsteps is carried out.

IMPLEMENTASI EKSTRAKURIKULER ATLETIK NOMOR LOMPAT JAUH PADA SEKOLAH MENENGAH PERTAMA NEGERI KOTA BENGKULU

AbstrakPenelitian ini bertujuan untuk mengetahui implementasi ekstrakurikuler atletik nomor lompat jauh pada sekolah menengah pertama negeri kota Bengkulu. Jenis penelitian ini adalah deskriptif kualitatif. Subjek penelitian adalah 3 pembina, 3 pelatih, dan 58 siswa ekstrakurikuler atletik sekolah menengah pertama negeri kota Bengkulu. Teknik pengumpulan data yang digunakan adalah dengan pengamatan (observasi), angket (kuesioner), wawancara, dan dokumentasi. Instrumen yang digunakan adalah wawancara bebas dan angket meggunakan skala likert. Hasil penelitian ini diambil dari hasil angket dari siswa ekstrakurikuler atletik berjumlah 58 siswa, maka di peroleh hasil angket kategori Manajemen Sebesar 58%, Sarana dan Prasarana 59,41%, Pelatih yang Kompeten 70,03%, Motivasi 64,58%, dan Prestasi sebesar 42,2%,dan dari semua hasil angket diperoleh rata-rata sebesar 58,84%. Dan berada pada klasifikasi 40-60% dalam kategori kurang baik. Sehingga dapat disimpulkan bahwa implementasi ekstrakurikuler atletik nomor lompat jauh pada sekolah menengah pertama negeri kota Bengkulu belum maksimal.Kata Kunci: Implementasi, Ekstrakurikuler, Atletik, Lompat JauhAbstractThis study aims to determine the implemention of extracurricular athletic long jump numbers in the junior high school of the city of Bengkulu. This type of research is qualitative descriptive. The subjects of the study were 3 coaches, 3 trainers and 58 athletic ekstracurricular stundents at the Bengkulu city junior high school. Data collection techniques used are observation, questionnaire, interview, documentation. The instruments used were free intervies and questionnaires using a likert scale. The results of this study were taken from the result of questionnaires from athletic extracurricular stundents totaling 58 stundents, then the result of the management category questionnaire were 58%, facilities and infrastructure 59.41%, competent coach 70,03%, motivation 64.58%, and achievements. and from all questionnaire results obtained an average of 58,84%. And is in a classification of 40-60% in the bad category. So that it can be concluded that the implementation of extracurricular athletics in the long jump number in the junior high school of the city of Bengkulu is not maximal.Keywords: Implementasion, Extracurricular, Athletic, Long Jump

KESALAHAN SISWA SEKOLAH DASAR DALAM MEREPRESENTASIKAN PECAHAN PADA GARIS BILANGAN

Fraction is one of the complex material in elementary school. This study aims to describe how students represent fractions on a number line, and describes the mistakes made in the students represent fractions on the number line. This research is qualitative. Subjects in this study there are two students class V of SDN Tamping Mojo II. The data collection method using a task-based interviews. Instruments in this study is the researchers themselves and supporting instruments is a task sheet and interview guidelines. Based on this research, how subjects represent fractions on a number line: fractions with the same denominator on the number line, the subject of linking the amount of parts in the interval of 0 to 1 as the denominator, the subject of linking the amount of the line that divides the interval of 0 to 1 as the denominator, the subject of fractions sort of fractional numerator. Fractions with denominators are not the same on the number line, the subject of fractions with denominators sort biggest, subject to name a point regardless of its parts. Fractions on the number line at a specified point (the same parts and the parts are not the same), the first subject tends to count the number of lines that divide the number line into sections of the same count the number of parts that are formed to be the denominator, the second subject occurs misconceptions with jump number. Fractional mixture on the number line, the two subjects can not represent. Mistakes made by the two subjects are conceptual errors and application errors.

An Improved BIST Algorithm Research

This paper presents an improved algorithm of test vector based on GA and LFSR method, to improve the TPG first, then using GA and LFSR algorithm generate test vector, finally establish the algorithm to test vector for sorting, make the bit jump number of sorted sequence at least, and uses the improved output circuit TC test method are analyzed in the response, through the experimental data, verify the advantages of this scheme is to improve the test fault coverage, reduce power consumption and improve test speed.

Measurement of Putting Golf Balls Motion Using a Vision Sensor

This paper presents measurement of a putting golf ball jump motion using a vision sensor. After putting, a golf ball experiences bouncing, sliding and rolling sequentially. In particular, ball jump motion contains lots of important information related to impact such as jump number, height and length. Putting is simulated as a simple pendulum and golf ball jumps are measured using a vision sensor. The golf ball jump changes significantly according to impact errors such as impact timings. If an IMU sensor is attached on the putter head and relationship between variations of golf ball trajectory and IMU sensor signal is characterized, coaching information of golf putting to correct various impact errors can be provided only using IMU sensor.