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All Journal INTEK: Jurnal Penelitian Jurnal Abdi Insani Jurnal Teknik Mesin Sinergi
Abdul Zain
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering

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Analisis Pengamanan Sinyal Informasi Dengan Frequency Hopping Spread Spectrum Abdul Zain
Jurnal Teknik Mesin Sinergi Vol 6, No 1 (2008): April 2008
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (125.419 KB) | DOI: 10.31963/sinergi.v6i1.1022

Abstract

Spread Spectrum merupakan sinyal band lebar (wide band), mirip noise sehingga sulit untuk dideteksi, ditangkap, didemodulasi ataupun diinterferensi. Fitur Low Probability of Intercept (LPI) dan anti jam (AJ) inilah yang menyebabkan penggunaan Spread Spectrum digunakan oleh pihak militer. Sinyal spread spectrum adalah suatu jenis modulasi dimana lebar bidang transmisi yang digunakan jauh lebih besar dari pada lebar bidang minimum yang dibutuhkan untuk mentransmisikan informasi, sementara tidak ada kaitan langsung antara lebar pita sinyal keluaran dengan modulasi oleh sinyal informasinya. Dengan adanya pemodulasian, sinyal informasi akan ditebarkan pada daerah frekuensi yang cukup lebar. Frekuensi hopping adalah salah satu teknik spread spectrum dimana proses penebaran dilakukan dengan mengubah-ubah frekuensi gelombang pembawa secara periodik. Daerah sinyal informasi ditebarkan tergantung pada sinyal penebar, dimana sinyal penebar ini dihasilkan oleh suatu pensintesis frekuensi yang dikendalikan oleh suatu urutan kode penebar.
OPTIMALISASI KEMAMPUAN MATEMATIS SISWA SMK NEGERI 2 PAREPARE MELALUI LITERASI DIGITAL BERBASIS GEMINI Adhalia H, Nurul Fuady; Tungga , Rifaldy Atlant; Irmayani, Irmayani; Putriani, A. Ika; Zain, Abdul; Akkas, Anrian Bin; Yuliana, Yuliana
Jurnal Abdi Insani Vol 11 No 4 (2024): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v11i4.1667

Abstract

The rapid advancement of digital technology necessitates an enhancement of digital literacy among the public, especially among vocational high school students. This study aimed to improve the digital literacy competencies of Electronics Engineering students at SMK Negeri 2 Parepare in solving mathematical problems through the utilization of Google Gemini. Initial observations revealed that students exhibited misconceptions and faced challenges in finding accurate information related to mathematical concepts on the internet. This educational initiative was conducted in three distinct phases: preparation, implementation, and evaluation. During the implementation phase, students received interactive training on the utilization of Google Gemini. The evaluation results demonstrated a significant improvement in the students' ability to find relevant information, solve mathematical challenges, and foster a growth mindset towards learning. The application of Google Gemini as an educational tool has proven effective in enhancing students' digital literacy. This underscores the importance of integrating technology into the educational framework to facilitate the advancement of students' competencies in the digital era.
Rancang Bangun Sistem Proteksi Kebakaran Menggunakan Smoke dan Heat Detector Zain, Abdul
INTEK: Jurnal Penelitian Vol 3 No 1 (2016): April 2016
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1048.356 KB) | DOI: 10.31963/intek.v3i1.25

Abstract

Abstract—The growth of rapid development in the big cities but without well planning in terms of fire prevention and the things that can cause a fire, for example electrical installations and gas that can either lead to frequent fires in the residential homes. The aim of the study is to prevent fires by detecting the presence of smoke and excessive heat around the house and protect the occurrence of fires that have wide impacts. The outcome of the fire protection design using smoke and heat detector based on microcontroller is to detect both smoke and heat hazards. If there is a danger of smoke or heat, then the system will provide a warning alarm, provide the path to the door emergency evacuation, and provide protection to extinguish the fire before the fire was enlarged.
Studi Penurunan Kadar Logam Besi (Fe) dan Logam Mangan (Mn) pada Lempung terhadap Perubahan Arus Listrik dalam Solenoida Zain, Abdul; Muliawan, Arief
INTEK: Jurnal Penelitian Vol 3 No 2 (2016): Oktober 2016
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (415.319 KB) | DOI: 10.31963/intek.v3i2.54

Abstract

In the soil there are many compound of Fe and Mn as well as in the clay. Those two compounds need to be reduced to improve the resistive value of the clay. One method to reduce those compounds is by electromagnetic filter using solenoid. From the experiment circuit, it was found that the resistive value was 4.5 Ohm with maximum current of 5 Ampere. Concentration of Fe and Mn after filtered were 0.46 ppm and 0.40 ppm respectively.
Studi Sistem Informasi Monitoring Pembelian Material (Studi Kasus: K5-Project IKPT Toyo) Zain, Abdul; Sutanto, Hari
INTEK: Jurnal Penelitian Vol 4 No 1 (2017): April 2017
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2021.522 KB) | DOI: 10.31963/intek.v4i1.97

Abstract

Kaltim-5 Factory is the biggest plant for Ammonia and Urea in Indonesia. Construction of this plant was executed by Consortium IKPT-TOYO. Along the construction stage, procurement for materials were absolutely needed, and Procurement Department IKPT-TOYO has responsibility to handle materials procures. System that currently used is still using Microsoft Excel by manual input for each steps beginning from inquiry stage, getting vendor quotation until PO issued. This method still has some problems occurred such as uncontrolled stock and material requisition, also inquiry sheet which can be easily lost. In order to support the completion of K5-Project that needs more materials, therefore it needs a system that can ease and also improve the work of Procurement Department. Based on this background, research study to resolve this problem is held. This system gives status information and it is integrated to the each control step smoothly. System development used on this program is SDLC with Waterfall model. Moreover, testing methods is using Black Box system. The design of this monitoring information system describes a work order application by using PHP Macromedia Dreamweaver 8, AppServ 2.10.2 as web server and MySQL as database. Having testing the application, the result of this study shows that the application is able to improve the data processing of material procurement with minimum of error and high accuracy.
Prototipe Pengendali Pintu Darurat Menggunakan Mikrokontroler ATMega 16 Zain, Abdul; Muliawan, Arief
INTEK: Jurnal Penelitian Vol 5 No 2 (2018): Oktober 2018
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (669.496 KB) | DOI: 10.31963/intek.v5i2.583

Abstract

In a building should have a good security system,especially Emergency Exit (emergency evacuation path).Emergency Exit is important because when an emergency occursin the building, the first thing to do is get out of the lab building.One thing to note is the emergency exit door. With the emergencydoor that can be opened quickly so all workers can get outquickly as well from the building when an emergency occurs.So,we need a model (prototype) controlling an emergency door thatcan function properly in an emergency. Prototype newemergency door controller is expected to be implemented intoactual emergency door. Prototype can be accessed with a pushbutton by the user facility. The prototype controller usemicrocontroller ATMega16. And for each emergency exitmovement is monitored and its status is expressed in LEDindicator lights and LCD display on 16x2. Modeling controllingemergency exit of a series of tests using a prototype have workedwell except on the 3rd test caused an error when calibrating thedistance between Ultrasonic sensor with Emergency Door.
Design of Microcontroller Based Fire Detector with Output Warning SMS Information and Automatic Extinguisher Zain, Abdul; Hartono, Rudi; W, Sri Handani
INTEK: Jurnal Penelitian Vol 7 No 2 (2020): October 2020
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v7i2.2639

Abstract

Conflagration is an unpredictable tragedy. It may occur whether in the woodland areas or in the residential areas. Typically, it would only be recognized if indeed the flames spread and the smoke intensified. This study aims to detect fires using the MQ-2 smoke sensor, DS18b20 temperature sensor, and fire sensor. Using Arduino Uno as the controller, this system’s output is in the form of an alarm buzzer, Short Message Service (SMS) information using SIM800L, and an automatic fire pump. This system operates to detect the temperature shifts, the smoke concentration and the existence of a fire point which triggers an alarm in the form of a siren if two out of the three sensors are activated. It, then, sends information by Short Message Service (SMS) and automatically triggers the pump as the result. The fire sensor can detect hotspots with a maximum distance of 80 cm and the DS18b20 temperature sensor has an average reading error of 0.27 ° C with a maximum reading error of 0.5 ° C. The MQ-2 smoke sensor can detect smoke where the change in smoke concentration is directly proportional to the sensor output voltage. There are three conditions to determine fire conditions, namely the temperature sensor reads more than equal to 55 ° C and the fire sensor is active, or the temperature sensor reads more than equal to 55 ° C and the smoke sensor reads more than equal to 1000 ppm, or the fire sensor is active and smoke sensor reads greater than equal to 1000 ppm.
Co-Authors Akkas, Anrian Bin Arief Muliawan, Arief Hari Sutanto, Hari Hartono, Rudi Irmayani Irmayani Nurul Fuady Adhalia H Putriani, A. Ika Rifaldy Atlant Tungga W, Sri Handani Yuliana Yuliana