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All Journal Jurnal Informatika Indonesian Review of Physics (IRiP) International Journal of Insights for Mathematics Teaching (IJOIMT)
Bayu Nugroho
IBI DarmajayaAPLIKASI SISTEM PENDETEKSI KADAR GAS BUANG KENDARAAN BERMOTOR
Astronomy Computer Science & IT Earth & Planetary Sciences Education Materials Science & Nanotechnology Mathematics

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REALISASI SISTEM PENGENDALI LAMPU JARAK JAUH MENGGUNAKAN GSM SELULAR VIA SHORT MESSAGE SERVICES (SMS) Sriyanto, Sriyanto; Nugroho, Bayu
Jurnal Informatika Vol 7, No 1 (2007): Jurnal Informatika
Publisher : IIB Darmajaya

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Abstract

Computer ability to control the outside peripherals enable the computer can be made to become the more usefull equipments for its user. Through ports and expansion slots provided at computer, various digital equipments can be connected and controlled through computer. System that is realized in this research is a system of long distance controller of lamp by exploiting one of features from GSM Cellular, that is Short Message Services ( SMS) as information system having the character of real time, constructively computer as controller of Electronic switch which is connected to computer through PPI8255 Interface   This System Solution cover the realization from hardware in the form of GSM Cellular, RS232 Interface, PPI 8255 Interface and Electronic switch; software and Hardware. Software as controller device of hardware made using the Visual Basic V6.0 Programming Language. Software undertake to take the data of SMS at cellular phone memory, processing accepted data, storages data to conduct the arrangement to interface PPI8255  according to accepted information or data
APLIKASI SISTEM PENDETEKSI KADAR GAS BUANG KENDARAAN BERMOTOR Nugroho, Bayu
Jurnal Informatika Vol 11, No 2 (2011): Jurnal Informatika
Publisher : IIB Darmajaya

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Sources of air pollution one of them is motor vehicle exhaust gas, the gas produced from the combustion of fuel occurs at vehicle engine. Application detection level of the exhaust system of motor vehicles that are made used to detect the amount of gas levels of NO and CO gases using the sensor TGS2201. Data from sensors is processed by the microcontroller and the results are displayed on the PC through serial port, the design of an application program using the Delphi programming language. Keywords: gas, microcontroller, sensors, and TGS2201
The Content Analysis of Bisphenol A (BPA) on Water in Plastic Glass with Varying Temperatures and Contact Times using UV-VIS Spectrophotometer Nugroho, Bayu; Pramudya, Yudhiakto; Widodo, Widodo
Indonesian Review of Physics (IRiP) Vol 1, No 2 (2018)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (905.406 KB) | DOI: 10.12928/irip.v1i2.263

Abstract

This study aims to analyze the content of Bisphenol A (BPA) on various temperatureandcontact timesbetween the plastic bag and water. For analysis of BPA, a sample made with variations of temperature (± 70°C, ± 80°C, ± 90°C) and contacttime(5 minutes, 10 minutes, 15 minutes) usingnine samples. To determine the concentration of BPA, Lambert-Beer law was employed.According to the analysis of data, the content of BPA on the temperature variation showed that the higher the temperature of the sample, the higher the content of Bisphenol A in the sample. The content of BPA with a variation of contact times stated that with the longer contact time, the higher the content of BPA.
SERIES OF ARGUMENTS ON PROCESSES OF CRITIQUES TO MATHEMATICAL PROBLEMS Nugroho, Bayu; Nusantara, Toto; As'ari, Abdur Rahman; Sisworo, Sisworo
International Journal of Insights for Mathematics Teaching (IJOIMT) Vol 1, No 1 (2018)
Publisher : Universitas Negeri Malang

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Abstract

This study was initially based on the researcher?s interest in a case found in students as they responded mathematical problems provided in the form of critiques to a problem. The study aimed to explore the students? arguments to describe the students? thinking processes while they are giving critiques to a mathematical problem. The study was qualitative research in a case study involving one student as a subject of research.  The finding showed that the students used 4 series of arguments as the main reason to give critiques to the given problem. The critiques were delivered due to several factors consisting of; (1) the students? inability to discover appropriate strategies to deal with the given problems; (2) the personal experiences kept in a Long Term Memory, and (3) the fallacy on reasoning.
Co-Authors As'ari, Abdur Rahman Luh Putu Ratna Sundari Sisworo Toto Nusantara Widodo Widodo Yudhiakto Pramudya