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Jurnal Ilmiah Dinamika Rekayasa (DINAREK)
Published by Universitas Jenderal Soedirman
ISSN : 18583075     EISSN : 25276131     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering
DINAREK is a scientific journal published by Engineering Departement of Jenderal Soedirman University. DINAREK is a peer reviewed nasional journal in Indonesian, published two issues per year (February and August). DINAREK is to publish high-quality articles dedicated to all aspects of the latest outstanding developments in the field of engineering. Its scope encompasses the engineering of signal processing, electrical (power), electronics, instrumentation & control, telecommunication, Geological Engineering, Civil Engineering, Computing and informatics, and Industrial Engineering.
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol 8, No 2 (2012): Dinamika Rekayasa - Agustus 2012" : 6 Documents clear
Geomorfologi Sungai Klawing Daerah Bobotsari, Kabupaten Purbalinggga, Jawa Tengah Asmoro Widagdo
Dinamika Rekayasa Vol 8, No 2 (2012): Dinamika Rekayasa - Agustus 2012
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2012.8.2.105

Abstract

Klawing watershed is in Banyumas basin area, Purbalingga, Central Java. The river's flow is cut Tertiary rocks in the mountains of North Serayu, which includes Halang Formation, Kumbang, and Tapak and also Quaternary volcanic rocks of Slamet Volcano. The morphology of the surrounding area of the river is a volcanic mountains of Slamet Volcano in the western, homocline mountainous in the north and the hills / plains in the east and south. Geomorphological processes of Klawing River has formed alluvial deposition and the plain around the river. Alluvial deposits form the terrace around the Klawing River. At least three terrace rivers developed around the study area. The three terrace rivers are each up to elevations of 2.9 m, 22.9 m and 34.9 m from the surface of the Recent river.
Generator Magnet Permanen Sebagai Pembangkit Listrik Putaran Rendah Prasetijo, Hari; Ropiudin, Ropiudin; Dharmawan, Budi
Dinamika Rekayasa Vol 8, No 2 (2012): Dinamika Rekayasa - Agustus 2012
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2012.8.2.106

Abstract

Development renewable energy as electrical energy need to be followed by provision of low speed generator, especially for small-scale use of alternative energy. This study discusses the design of low speed synchronous generator using permanent magnets for producing magnetic flux in the rotor. Stator coils are designed so that on the rotation of 500 rpm generator can produce 5 watts output power at 3 phase voltage 12 Vac.
Ekstraksi Ciri Batang untuk Pengenalan Nomer Rekening Tulisan Tangan dengan Jaringan Syaraf Tiruan Perambatan Balik Asriani, Farida; Nugraha, Azis Wisnu Widhi
Dinamika Rekayasa Vol 8, No 2 (2012): Dinamika Rekayasa - Agustus 2012
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2012.8.2.101

Abstract

Handwriting number recognition was being challenge problem to do in the recent years. The main objective for our research waso recognized handwritten account number. The original data was bank deposit slip that acquired by scanner. Before do the recognition of account number handwritten, first step that must be done was located account number on the bank deposit slip. After the location was found then the account number was segmented to cut up each numbern. After cutting the stem then performed feature extraction to obtain a vector which was fed to the neural network system for recognition rate. System back propagation neural network for handwritten digit pattern recognition was designed by 168neuron consists of input layer, 70 neurons in the hidden layer and 10 neurons in the output layer. The results obtained in this study were 83.78% of the data slip can be recognized correctly.
Influence of Vehicle Load as Point Load on Geogrid Deformation as Embankment Reinforcement on Soft Soil A. Adhe Noor Patria SH
Dinamika Rekayasa Vol 8, No 2 (2012): Dinamika Rekayasa - Agustus 2012
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2012.8.2.102

Abstract

Public contructions built on soft soil such as clay would face some problems such as long period consolidation time, unstability embankment slope, not easily compacted and high level settlement. Some solution that could be suggested were the usage of vertical drain, or the usage of geosynthetics material such as geogrid combined with floating piles. Analysis was carried out by using plaxis version 7.2. soil for embankment and embankment foundation was modelled in plane strain. Also geogrid and floating piles were modelled in plane strain too. Point load on top of embanknet were variated, they were 20, 40 and 60 kN/m. The simulation was carried out in staged contruction mode. The implementation of vehicle load increased geogrid deformation. It appeared as geogrid vertical displacement when the biggest vehicle load ( 60 kn/m) applied. In long term loading condition where excess pore water pressure was very small, vertical displacement of geogrid was – 0,5062 m for rigid embankment and – 0,6568 m for interface embankment. The difference occured due to slip at the interface of geogrid and soil. It leaded to adding soil mass supported by geogrid, furthermore the deflection of geogrid became bigger.
Studi Potensi Minyak Dangkal dengan Pendekatan Metode Statistik Berdasar Data Geologi Permukaan Di Cekungan Banyumas Purwasatriya, Eko Bayu; Waluyo, Gentur
Dinamika Rekayasa Vol 8, No 2 (2012): Dinamika Rekayasa - Agustus 2012
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2012.8.2.103

Abstract

Banyumas basin is part of South Java Fore Arc Basin. Tectonically, Banyumas basin also included in South Central Java Region, where the main structure are trending Northwest – Southeast and Northeast – Southwest. Stratigraphically, the formation sequence from the oldest to the youngest are : Gabon Formation, Pemali Formation, Kalipucang Formation, Rambatan Formation, Halang Formation, Tapak Formation and Alluvium & Volcanic deposits. Banyumas basin and surrounding area have several oil and gas seep. This seep indicating there are mature source rock that had been migrate to the surface. The factor required for existing of hydrocarbon is called petroleum systems, and the factor are : mature source rock, reservoir rock, cap rock/seal rock, trap and proper timing of migration. The study of shallow oil potential is a preliminary step to find the suitable exploration concept for Banyumas basin. This step is used after the discovery of shallow oil accidentally in about 90 meters depth in Tipar Village, Ajibarang sub-district. This study using the surface geological data and secondary data available and also scientific paper, related to Banyumas basin. Statistical method approaching is using the assumption of minimum probability (P10) to estimate the reserves potential of shallow oil that probably exist in Banyumas basin, and the result is the reserves potential about 2,181,937 barrels oil.
UNJUK KERJA VOICE OVER INTERNET PROTOCOL PADA JARINGAN LOKAL UNIVERSITAS JENDERAL SOEDIRMAN Alfa Pradipta; Azis Wisnu Widhi Nugraha; Iwan Setiawan
Dinamika Rekayasa Vol 8, No 2 (2012): Dinamika Rekayasa - Agustus 2012
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2012.8.2.104

Abstract

Jenderal Soedirman University (UNSOED) LAN covers all of its units that spread not only in Purwokerto area, but also in Purbalingga. Therefore, it may be possible to implement VoIP system in order to replace the internal campus voice telecommunication system that still use PSTN and PABX (line extensions). The Implementation of VoIP technology into UNSOED LAN needs a VoIP server prototype to be built for quality testing. VoIP quality of service (QoS) is based on delay, jitter, and packet loss. These parameters will be used as QoS test parameters in this research. We also add subjective test runs by users to measure the voice quality of VoIP. According to Ridwan (2011), the optimum codec that can be applied in UNSOED LAN is iLBC. Our research result shows that the highest mean for delay, jitter, packet loss respectively are 3 milliseconds, 19,333 milliseconds, 1%, and the voice quality is good . These indicated that the VoIP QoS and voice quality on UNSOED LAN is in a good category.

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