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Foristek
Published by Universitas Tadulako
ISSN : 20878729     EISSN : 25797174     DOI : https://doi.org/10.54757
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering
Foristek is a scientific journal published with the aim of facilitating academics and researchers to publish their research results in the field of Innovation electrical engineering. Journal of the Electrical and Information Engineering Forum (Foristek) is a journal published by the Department of Electrical Engineering, Tadulako University. Foristek began publication on September 2, 2011 and published regularly twice a year in May and November.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 7 Documents
 1 
Search results for , issue "Vol 2, No 2 (2012)" : 7 Documents clear
PENERAPAN KOMPLEKSITAS WAKTU ALGORITMA PRIM UNTUK MENGHITUNG KEMAMPUAN KOMPUTER DALAM MELAKSANAKAN PERINTAH Nugraha, Deny Wiria
FORISTEK : Forum Teknik Elektro dan Teknologi Informasi Vol 2, No 2 (2012)
Publisher : FORISTEK : Forum Teknik Elektro dan Teknologi Informasi

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Abstract

Abstract - The purpose of this study is to develop the software using both Delphi 7 and ArcView GIS 3.3 programming language which is able to apply Prim's algorithm in obtaining the time complexity used to calculate the cability of computer in executing the command. This study not only compares two pieces of software built by the authors but also compares the cability of two computers that each have different specifications. It has been proven that the software generated in this study can be utilized to get the complexity of time by using Prim’s algorithm which is used to calculate the ability of computer in executing the command. The software can also accurately display the minimum spanning tree as a result of applying the Prim's algorithm. The capability of computer is examined in terms of the accuracy and speed in executing the commands. The examination result shows that the capability of the first computer specifications is higher than the capability of the second computer specifications in applying the Prim's algorithm. The other result found in this study shows that the computation time software built in Delphi 7 is faster than the computation time software built in ArcView GIS 3.3. This result indicates that in terms of applying the Prim's algorithm, the software built in Delphi 7 is more efficient than the software built in ArcView GIS 3.3.   Keywords: Time Complexity, Prim’s Algorithm, The Ability of Computer
PEMODELAN STRATEGI MANAJEMEN ENERGI BERBASIS SOLUSI ANALITIS UNTUK KENDARAAN HIBRIDA LISTRIK-HIDROGEN Dodu, A.Y. Erwin
FORISTEK : Forum Teknik Elektro dan Teknologi Informasi Vol 2, No 2 (2012)
Publisher : FORISTEK : Forum Teknik Elektro dan Teknologi Informasi

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Abstract

Abstract - Energy Management Strategy (EMS) implemented in the fuel cell hybrid propulsion system aims to minimize the fuel consumption needed to provide the required power demand. Various EMS methods have been built to solve the optimization problem in minimizing the fuel consumption. This paper provides a modeling of new alternative approach of EMS method calLED analytical solution which is based on the minimization of the losses in the vehicle propulsion system. This method ensures that the minimization in the propulsion losses matches the minimization in the fuel consumption. Since the minimization is applied to the propulsion losses, this method has shifted the EMS objective to minimize the losses in the fuel cell hybrid propulsion system, still enabling to supply the demanded power for traction. The important advantage of this method is that it enables the real time implementation.Keywords: Energy Management Strategy, analytical solution, Fuel Cell Hybrid Electric Vehicle.
PERANCANGAN PROTOTYPE PENJEJAK CAHAYA MATAHARI PADA APLIKASI PEMBANGKIT LISTRIK TENAGA SURYA Hardianto, Hendry Eko; Rinaldi, Reza Satria
FORISTEK : Forum Teknik Elektro dan Teknologi Informasi Vol 2, No 2 (2012)
Publisher : FORISTEK : Forum Teknik Elektro dan Teknologi Informasi

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Abstract

Abstract - Solar energy is one of the alternative energy sources which can be used as electrical energy. As the effect of earth rotation and revolution, it had not been optimized maximally yet. The rotation of earth causes the sun moves from east to west every day, and the revolution of earth causes the sun move from north to south every year. These phenomenons cause the different intensity of sun light in every earth surface. To optimize the sun light, the design and realization of solar tracker is very important. The solar tracker has to be able to track the position of the sun and move the solar cell to face the sun light. The solar tracker can move in two axis with moving type of rotate and tilt, so  it works optimally every time. This solar tracker is designed by using photo diode as light sensor and servo motor as actuator. The system uses ATMega8535 as control unit which able to process signal from the sensor and resulted Pulse Width Modulation to control servo motor moving. The testing showed this solar tracker capable to raise the average power to 0.676 watt and the eficiency to 36,216%. The error of tracking is 90 at heavy cloud. Key Word: Light Sensor, Servo Motor, Solar Tracker
PROTOTYPE SISTEM KATALOG BUKU ONLINE MENGGUNAKAN TEKNOLOGI JAVA DAN XML UNTUK PERANGKAT SELULER Anshori, Yusuf
FORISTEK : Forum Teknik Elektro dan Teknologi Informasi Vol 2, No 2 (2012)
Publisher : FORISTEK : Forum Teknik Elektro dan Teknologi Informasi

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Abstract

Abtract - Libraries as providers of information that is generally in the form of print media (books, reports, magazines, newspapers, journals, etc.) should gradually improve its services so that remain attractive to the visitors. One of the service improvements that can be done is to provide an information catalog that can be accessed by telecommunications media such as mobile phone and smart phone. This paper aims to create a prototype of the online book catalog system software using Java and XML technology  and use wireless networking technology from the hardware catalog of books that can be accessed by cellular telephone communication media in particular. By inspecting the testing results conducted in this study known that the catalog is accessible for cellular phones from various vendors.   Keywords : catalog online, java and XML, phone cellular
DAMPAK PEMASANGAN DISTRIBUTED GENERATION TERHADAP RUGI-RUGI DAYA Bawan, Elias K.
FORISTEK : Forum Teknik Elektro dan Teknologi Informasi Vol 2, No 2 (2012)
Publisher : FORISTEK : Forum Teknik Elektro dan Teknologi Informasi

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Abstract

Abstract - The introduction of distributed generation (DG) onto distribution networks has a significant effect on power system. This effect cannot be characterized as detrimental or beneficial but is dependent on the allocation of DG on each distribution network section. Here the impact of DG on losses has been modeLED, facilitating a unique appr oach to the allocation of DG. This approach has been implemented and tested on sample sections of distribution network and results are presented showing the optimal allocation of DG which improves the efficiency of energy delivery on the distribution network. This paper aims to investigate the impact of distributed generation on distribution system losses. The main objective is to reduce the power losses based on location of DG and size of injection. Minimizing losses in the system is a delicate balance; one of the key areas is a balance between transmission losses and storage losses. Distributed generation can save on transmission losses and must be carefully designed to ensure that storage and the losses associated are minimized. Distributed generation can be used in niche applications to assist distributed generation and help manage the variability of the transmission grid. Using application program ETAP 6.0 and the Manokwari electricity distribution system as case study, the results shows that at certain location, the power injection of DG has decrease losses from 240,15 kW to 99,39 kW and more economic than without DG installation. The best location of interconnection is bus 77 from power grid and injection of 85% DG capacity.   Keywords :   Distribution System, Distributed  Generation, Losses  
ALAT PENGUKUR PEMAKAIAN ENERGI LISTRIK MENGGUNAKAN SENSOR OPTOCOUPLER DAN MIKROKONTROLER AT89S52 Subito, Mery; -, Rizal
FORISTEK : Forum Teknik Elektro dan Teknologi Informasi Vol 2, No 2 (2012)
Publisher : FORISTEK : Forum Teknik Elektro dan Teknologi Informasi

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Abstract

Abstract - kWh-meter as an each hour electrical energy consumption measurer is still using conventional tools which only records the amount of electrical energy used in each hour. By using AT89S52 microcontroller and optocoupler sensor, the conventional kWh-meter was modified to be a measurer which is not only display s the amount of the used electrical energy but also shows the value of money in rupiahs that should be paid by the customer. The principle of how this system works is PLN as a power source of kWh-meter moves the disc of kWh-meter when it is in the underload condition. When the disc spin and pass the optocoupler sensor, the sensor will turn on. Each time the disc cuts the beam of light, the sensor will instruct the microcontroller, the main controller, to process the execution instruction. This execution instruction results in the reading of both a number of rounds per kWh and an amount of rupiahs display ed in LCD.   Keywords : kWh-meter, microcontroller, optocoupler
DESAIN BASIS DATA SISTEM INFORMASI AKADEMIK DI FAKULTAS TEKNIK UNIVERSITAS TADULAKO Joefrie, Yuri Yudhaswana; Kalatiku, Protus Pieter
FORISTEK : Forum Teknik Elektro dan Teknologi Informasi Vol 2, No 2 (2012)
Publisher : FORISTEK : Forum Teknik Elektro dan Teknologi Informasi

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Abstract

Abstract- This research aims to build the academic systems information which is focused in table and inter table relation. Table design and decision of inter table relation are very important in term of creating an information system because those table and relation have influence in system performance and  to avoid data redundancy. Method used in this study is interview with user who involved in the system and retrieve the hardcopy needed. Normalisation is done to the third stage. The conclusion found in this research is that the amount of table used in this system are six and there is no data redundancy. Keywords: database, inter-table relation

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