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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 7 Documents
 1 
Search results for , issue "Vol 3, No 1 (2007): Dinamika Rekayasa - Februari 2007" : 7 Documents clear
Prediksi Penyakit Demam Berdarah Dengue (Dbd) Dan Tifus Menggunakan Jaringan Syaraf Tiruan Perambatan Balik (Back Propagation) Farida Asriani; Hesti Susilawati; Lucyana Harvianti
Dinamika Rekayasa Vol 3, No 1 (2007): Dinamika Rekayasa - Februari 2007
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2007.3.1.122

Abstract

Dengue Haemorrhagic Fever (DHF) and Typhus are diseases which often knock over Indonesian society. Both of these diseases, especially DBD is malignancy that able to result death if losing time to be diagnosed. But civil society, even a doctor which is expert, sometimes also difficult to detect DHF diagnosed earlier, because symptom initially, tending to look like with other acute diseases. One of the diseases that have symptom like DHF is typhus. Back Propagation Artificial Neural Network (ANN) is one of artificial intelligences that can be applicated in the field of health, especially for predicting a disease type. By using input in the form of symptoms the naturalness by a patient, expected this Back Propagation ANN system can help the doctors to diagnose the diseases that happen to their patients, especially DHF and Typhus diseases. ANN system that is designed to predict DHF and typhus diseases, is trained with back propagation algorithm that using adaptive learning rate and momentum. From this research, is got ANN system with network architecture that consist of: one input layer with 18 neurons, one hidden layer with 125 neurons, and one output layer with 1 neuron. And also, value of constanta momentum is 0.95.This ANN system has good performance. From 400 respondents that use for training, result of the memorizing examination reaches percentage equal to 100%, and result of the generalizing examination reaches 96%, from 150 new respondents
Peningkatan Efesiensi Produksi Electric Arc Furnace Dengan Injeksi Oksigen Untuk Menghemat Biaya Energi Listrik Pada Industri Baja Wardhana, Arief Wisnu
Dinamika Rekayasa Vol 3, No 1 (2007): Dinamika Rekayasa - Februari 2007
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2007.3.1.123

Abstract

The highest production in steel making process is the cost of melting in the Electric Arc Furnace (EAF). The higher the electricity cost , the higher the production cost would be. Some means have to be done , therefore, in the melting process, in order to achieve higher efficiency. One of them is by installing a water cooling panel system at the furnace’s wall and roof. Another way is by chemical reaction through oxygen injection into EAF. The combination of the two will result in tap voltage at higher current and long arc setting. By obtaining higher power factor and long arc, we can achieve higher productivity and electricity cost saving. Experience and data shows that the power factor and long arc obtained can save up to 1.9 Kwh per Nm3 oxygen . Using the data, if oxygen were increased until 30N m3/ton , the fixed production cost would increased approximately 5 % for every increase of Rp.100,-/Kwh in electricity cost. Therefore, in order to stabilize the production cost, energy transformation capacity should be increased to become 130 MVA which is combined with an adequate oxygen injection management
Initial Tuning Sebagai Salah Satu Metode Pengoptimalan New Site Pada Jaringan Seluler Gsm (Studi Kasus Pada Area Kerja Pt. Sinergi Telecom Under Ericsson Network ) Hesti Susilawati; Azis Wisnu Widhi Nugraha; Arif Widodo
Dinamika Rekayasa Vol 3, No 1 (2007): Dinamika Rekayasa - Februari 2007
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2007.3.1.124

Abstract

The development of new sites by telecommunication network operator, especially GSM network, purposes for more increase performance and give satisfy for consument. Performance of a site is most affecting for value of network quality totally. New site builded must be monitorized and optimized by its existing in order to can be more realible on serving society with the method that was mentioned “initial tuning activity”. On this method must be concerned some matter as like: application of accurate frequency for avoiding interference problem, creating neighbour relationship between ex isting site and new site, detection for faulth installation for arranging re-use frequency concept, setting accurate coverage, olso changing tilt angle for accurate main beam area. This arrangement must be conditioned on a new site that still “default”, so it can improve quality. On operator side, they have some criteria that must be passed by a new site. Initial tuning activity on Site Simpang RGM had been proved on passing  that site from recommended criteria, olso being totally indicated more increase pe rformance of network
Perancangan Aplikasi Informasi SMS untuk Alumni Unsoed Menggunakan UML (Unified Modeling Language) Wijayanto, Bangun; Taryana, Acep
Dinamika Rekayasa Vol 3, No 1 (2007): Dinamika Rekayasa - Februari 2007
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2007.3.1.125

Abstract

Unified Modeling Language (UML) is a language which have come to the standard in industry to visualize, design and document the software system. Using UML we can make model for All software application type, where the application can also written in many language. SMS (Short Message Service) is the best choice to solve geographic problems in spreading information to the alumni Unsoed. The aim of this research is to compile notation of UML (Unified Modeling Language) in development of SMS Server for Alumni Unsoed. This research is conducted with software engineer method. The design result of software SMS alumni Unsoed present that UML (Unified Modeling Language) help in design and software programming
Kajian Unjuk Kerja Metode Hidrograf Satuan Sintetik Untuk Penetapan Banjir Rancangan Pada Das Di Pulau Jawa (Studi Kasus Das Cimanuk Hulu) Gunawan, Amaltia
Dinamika Rekayasa Vol 3, No 1 (2007): Dinamika Rekayasa - Februari 2007
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2007.3.1.120

Abstract

Recently, new methods for calculating unit hydrograph are growing fast. Therefore, an idea to compare each methods is necessary needed to ensure which method fits the most to the caracteristic of a particular basin. These some Synthetic Unit Hydrograph (SUH) methods which are Nakayasu SUH, Snyder SUH (in HEC-HMS), and GAMA I SUH, compared with Unit Hydrograph calculation method Collins, which is based its formula on measured hydrograph data. By doing summary to the results, one conclusion is received that the hydrograph by Snyder SUH in HEC-HMS fits the most to the hydrograph by Collins. Results of this study is aimed to ensure the researchers that Snyder SUH in HEC-HMS can also be alternative to make some hydrograph analysis
Pengaruh Pemasangan Kapasitor Shunt Terhadap Konsumsi Daya Aktif Instalasi Listrik Winasis Winasis; Azis Wisnu Widhi Nugraha
Dinamika Rekayasa Vol 3, No 1 (2007): Dinamika Rekayasa - Februari 2007
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2007.3.1.126

Abstract

The application of shunt capacitor is an alternative solution in improving power factor on electrical installations, so the use of electric energy become more efficient. Here we hope that capacitor will give both technical and economical benefit from decreasing power consumption and electric bill. Contributions of installing shunt capacitor to active power consumption on residential installation, which one of electrical bill has been studied.Based on experimental using 2-14 F capacitors on installation model with inductive load show that shunt capacitors decrease total apparent power (VA) up to 58% dependent of its original power factor, but increase active power consumption (up to10 W). From this, installing shunt capacitors will increase cost of kWh that consumer must paid. Application of shunt capacitors will give any benefits to residential consumer in case releasing power capacity installed.Key word: capacitor, shunt, active power, consumption
Perencanaan Sistem Distribusi Dengan Analisa Aliran Daya Hari Prasetijo
Dinamika Rekayasa Vol 3, No 1 (2007): Dinamika Rekayasa - Februari 2007
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2007.3.1.121

Abstract

This paper presents system distribution planning study with minimum investment base for 10 years. The planning will begin from existing condition (first year) and shows migration of system growth from first year  until tenth year. The planning constrain are voltage criteria and equipment capability. The study use  distribution power flow analysis as metode. The result of this study is distribution power flow analysis can  predict equipment profile that out of criteria and this condition make the planning more efective.

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