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Universitas Negeri Surabaya

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### Found 3 Documents Search Journal : Matematika dan Sains

OPTIMASI DISTRIBUSI JARINGAN LISTRIK Santi Aris Setyaningrum, ; Aditya Prapanca,
Matematika dan Sains Vol 16, No 1 (2009)
Publisher : Matematika dan Sains

#### Abstract

The propose of research was to study algorithm simulated annealing applying to re-arrange electrics extension position for the low voltage electrics network distribution with minimization length of cable using Mathlab 7. Data processed were obtained from the PLN electrics distribution data for the regional distribution of Kertajaya Indah Timur Surabaya. The results showed that length of cable needed without simulated annealing was 2300 m, while the length of cable could be decreased till 1600 m by using simulated annealing.
SIMULASI PENDULUM TERBALIK (INVERTED PENDULUM) PADA SEBUAH KERETA MENGGUNAKAN BAHASA PEMROGRAMAN MATLAB 7.5 Aditya Prapanca, ; Noor Anita Candra Dewi,
Matematika dan Sains Vol 17, No 1 (2010)
Publisher : Matematika dan Sains

#### Abstract

Hanger or pendulum form a thing which to adhere at pivot cart and can to be move with one level freedom (in the same direction or the contrary direction with hand of clock). In principle the inverted pendulum system form which which the characteristic system not stable or non-linear and physical system to do from pendulum, horse-drawn cart or cart and motor DC. The direction from research to conduct is strive for in order that pole inverted pendulum mentioned in order that constant in proportion at inverted position. Because of that, for control the non-linear system to be needed a certain model mathematical which the decrease from relationship fisis system with the conduct vicinity equation movement Lagrange and too conduct linearisasi to be able linear system. The results of this research the obtain that with using method above obvious not yet can result optimal. That is more great alteration mass pendulum, cart and pendulum movement to right with the angle of pendulum speed which stable decrease at inverted position. Whereas at the moment is more great alteration length pendulum, cart and pendulum movement to right with the angle of pendulum speed which stable enough at inverted position.
UJI Resonantor BUMBUNG TERTUTUP pada perangkat Gamelan Slentem dan gender UNTUK PENGUATAN BUNYI Yoyon K. Suprapto1, ; Aditya Prapanca2,
Matematika dan Sains Vol 18, No 2 (2011)
Publisher : Matematika dan Sains

#### Abstract

Gamelan@consists of@many devices which has@the characteristics sound. It is in fluenced by@ resonantor on each gamelanfs device. Resonantor@is useful@to strengthen the@sound character resulted by@set of gamelan. Each@gamelanfs device has the resonator in different form. It usually@located@under@the sound-producing@metal. Tubular is one of resonantor@form used@in@slentem@and@gender.@The diameter and length of the resonantor tube enfluenced to @the sound produced@by resonantors. @