Perancangan Rute Distribusi Beras Sejahtera Menggunakan Algoritma Ant Colony Optimization (Studi Kasus di BULOG Kabupaten Semarang

Distribution activity has a very important role in the supply chain. Distribution is an activity to send the goods or products from the supplier or manufacturer to the consumer. PERUM BULOG in Semarang district is responsible for distributing beras sejahtera from warehouses to distribution points spread over 19 districts. The distribution process that PERUM BULOG Semarang district apllied to distribute beras sejahtera takes enormous costs and time. This is due to the lack of distribution design from PERUM BULOG Semarang district so the distribution distance is not optimal and ineffective use of vehicles. This research aims to design beras sejahtera distribution route by optimizing the distance to be traversed and also the use of vehicles using Ant Colony Optimization algorithms. Ant Colony Optimization is a metaheuristic optimization method which adopts the behavior of ant colonies in taking food to the nest. Ant Colony Optimization optimize the distance between points distribution one with the other distribution points based on the intensity of the pheromone that exist at each distribution point. From the old method that applied PERUM BULOG Subdivre Semarang requires 1100.4 km distance, 24 trucks and distribution costs Rp . 58,142,204.00 . From Ant Colony Optimization algorithm requires a distance of 966.2 km, 12 trucks and distribution costs needed is Rp . 30,939,232.00 . By applying these Ant colony optimization algorithm results obtained distance reduction of 12% , the cost savings of 47% , and savings of 50% use of the truck to a distribution proces

Rancang Bangun Pengaman Mesin Atm Menggunakan Rfid Berbasis Mikrokontroler Atmega8535

Brankas uang merupakan salah satu tempat yang dapat digunakan untuk menyimpan uang sehingga lebih aman dari tangan-tangan yang tidak berhak. Mesin ATM hanya memiliki sistem security hanya sebatas sensor. Hal ini kurang efesien dalam keamanan mesin ATM. Tujuan penelitian ini adalah merancang dan membuat sistem keamanan mesin ATM berbasis mikrokontroler yang dikombinasikan dengan beberapa sensor keamanan dengan tujuan mendapatkan keamanan yang lebih optimal dan mengimplementasikan RFID sebagai pendukung keamanan ATM. Metode yang digunakan pada penelitian ini menggunakan RFID Reader sebagai media input, website sebagai media informasi secara online sekaligus pengendali, dan mikrokontroler ATMega8535 sebagai pusat pemrosesan.  Dari hasil perancangan dan pengujian yang sudah dilakukan menunjukkan bahwa alat bekerja sesuai dengan program yang sudah ditanamkan pada mikrokontroler ATMega 8535 dan rancangan alat ini dapat dikendalikan melalui website, serta setiap kondisi mesin ATM baik yang membuka menggunakan ID tag dan membongkar mesin ATM  ditampilkan di LCD dan website

Design A Monitoring and Control in Irrigation Systems Using Arduino Wemos with the Internet of Things

Irrigation door is a big issue for farmers. The factor that became a hot issue at the irrigation gate was the irresponsible attitude of the irrigation staff regarding the schedule of opening/closing the irrigation door so that it caused the rice fields to becoming dry or submerged. In this research, an automatic prototype system for irrigation system will be designed based on integrating several sensors, including water level sensors, soil moisture sensors, acidity sensors. This sensor output will be displayed on Android-based applications. The integration of communication between devices (Arduino Nano, Arduino Wemos and sensors supporting the irrigation system) is the working principle of this prototype. This device will control via an Android-based application to turn on / off the water pump, to open/close the irrigation door, check soil moisture, soil acidity in real time. The pump will automatically turn on based on the water level. This condition will be active if the water level is below 3cm above ground level. The output value will be displayed on the Android-based application screen and LCD screen. Based on the results of testing and analysis of the prototype that has been done in this research, the irrigation door will open automatically when the soil is dry. This condition occurs if the water level is less than 3 cm. The calibrated Output value, including acidity sensor, soil moisture sensor and water level sensor, will be sent to the server every 5 seconds and forwarded to an Android-based application as an output display

1 X 1000 KVA Transformer Measurement Analysis Using Dyn-11 Vector Group and Off Load Tap Changer

The transmission line of electrical energy generated by the power plant is usually located far from the load center to be distributed to the community. The substation is part of a distribution transmission line that acts as a control center and consists of a collection of extra high voltage equipment. Routine maintenance of the power transformer as the main equipment of the substation must be scheduled so that its performance remains reliable. The proposed method of this research is to analyze the condition of the transformer through testing when it is off, to the calculation of the transformer ratio to determine the condition of the transformer windings using the calculation of the formula and measurement of the Raytech Transformer Turn Ration measuring instrument. In this research, the Raytech Transformer Turn Ratio measurement tool is used to determine the ratio of the winding input voltage of 20,000 volts and the output voltage of 400 volts on the power transformer. At a voltage of 40VAC, from the results of the comparisons that have been made, it can be seen that the test results of the Raytech Transformer Turn Ratio measuring instrument, if it crosses the 0.5% tolerance limit, the measurement results on one of the coils change the ratio. If the transformer is not regularly checked, the impact will result in unbalance of voltage on one of the coils. And one of the coils in phase will expand and cause a loss of voltage

The Development and Application of Reverse Transcription Loop-Mediated Isothermal Amplification for the Diagnosis of Infectious Myonecrosis Virus in the White Shrimp (Litopenaeus Vannamei)

Infectious myonecrosis virus (IMNV) is one of the shrimp viral diseases caused by a double-stranded RNA virus, non-enveloped, and belongs to the family group Totiviridae. Weakness diagnosis of RNA viral diseases due to the RNA viruses are unstable and highly reactive. So far the diagnostic methods for detecting IMNV with high accuracy is based on biomolecular test, such as reverse transcription polymerase chain reaction (RT-PCR). The RT PCR generally requires 4-8 hours of testing time, and also requires thermal cycler with a commercial kit materials which is relatively expensive. The purpose of the present study is to find and determine an alternative isolation of RNA from the samples and to determine whether the reverse transcription loop-mediated isothermal amplification (RT-LAMP) method based on biomolecular approach can be an alternative testing method for diagnosis of IMNV in the white shrimps(L.vannamei).The RT-LAMP is more simple, straightforward, but it has a high sensitivity. Direct and indirect RNA extraction methods from samples and FTA cards give good results as a template in RT-PCR and RT-LAMP IMNV. The FTA card as one of the RNA samples of storage media provides an alternative storage method that is easy, simple and has a shelf life of RNA in the long term (up to 6 months). Incubation time of RT-LAMP IMNV at 400C is between 15-30 minutes. Amplification time of RT-LAMP IMNV at 56o C is between 70-110 minutes. In the present study, the white shrimps (L.vannamei) that are positive IMNV-RT-LAMP provides 100% compliance results when tested by the RT-PCR method. The time of RT-LAMP amplification IMNV ranged from 70-110 minutes shorter than that of conventional PCR (180-240 minutes). Overall the RT-LAMP method for IMNV can be applied as a method of testing for confirmative IMNV diagnosis in the white shrimps (L.vannamei)