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All Journal JMECS (Journal of Measurements, Electronics, Communications, and Systems) Jurnal Akuntansi
Kurniawan, Michelle
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Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology

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Measurement of Motor Vehicle Emissions Based on Low-cost Sensors Kurniawan, Michelle; Ardiles, Sopaheluwakan Alesandro; Adiwidya, Andre Suwardana; Ummi, Annisa Zahwatul; Halinda, Maulana Fauzan Athalla; Okthaviany, Indah Cikal Al Gyfary; Gajah, Deni Ali Marwan; Hidayat, Putri Naila Alyana; Lalintia, Irvin Judah; Kampong, Prichel Adisatya; Salam, Rahmat Awaludin; Chandra, Indra
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol. 10 No. 2 (2023): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v10i2.6002

Abstract

One of Indonesia's primary causes of air pollution is the significant level of human activity, particularly the continued use of fossil-fuel-powered vehicles. The incomplete combustion of fossil fuels can lead to gas and particle pollutants forming, impacting the environment. However, the instruments utilized for detecting environmental pollutants are relatively expensive. Therefore, motor vehicle emission tests use low-cost sensors with parameters such as CO, CO2, NO2, PM2.5, temperature, and RH. The flow rate measures the emission gas flow extracted from a vehicle's exhaust into the testing chamber and then released into the air for disposal. The flow rate utilized in these tests ranges from 12 to 15 lpm. The tests are conducted over 10 minutes to ensure accuracy, obtaining average readings for the measured parameters. For the measurement results using a low-cost sensor, the average value for CO is 383.891 ppm, NO2 is 10.7237 ppm, CO2 is 5,254 ppm, PM2.5 is 50.25 ?g/m3, temperature and RH is 28.9 °C and 76%. The official test results obtained a CO value of 1,200 ppm, CO2 of 140,000 ppm, and a temperature of 80 °C. This difference is because the reading range of low-cost sensors is relatively small but has a stable data trend.
Reasons for Not Choosing Accounting Profession – Behavioral and Normative Conviction Mardiana, Mardiana; Kurniawan, Michelle; Febrianti , Oei Venny
Jurnal Akuntansi Vol. 16 No. 2 (2024): Vol.16 No. 2 (2024)
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jam.v16i2.9005

Abstract

Purpose - Career choice among students is a crucial factor influencing career success and industry development. Accounting is one of the frequently chosen professions; however, there is a trend showing that some students tend to avoid this field. To understand this phenomenon in greater depth, this study aims to analyze how students' beliefs affect their thought patterns, attitudes, and subjective norms in the context of career choice, and to understand the reasons behind their tendency to avoid choosing an accounting profession at a private higher education institution, using the Theory of Reasoned Action (TRA) as the analytical framework. Design/methodology/approach - This research approach is quantitative, and the data used in this study were collected through the distribution of questionnaires. Surveys were electronically sent to third and final-year students among 100 students at private higher education institutions in West Java over a period of two months. Findings - The results confirmed the simplified TRA model and indicated that behavioral beliefs (such as difficulties with accounting and higher salaries in other professions) and normative beliefs (such as parental influence), through individual attitudes and subjective norms, affect students' decisions to pursue a career in accounting at certain private higher education institutions. The findings suggest that accounting programs at some private higher education institutions should have initiatives to encourage students to develop an interest in accounting, such as recruiting professional accountants as practitioners to provide motivating activities and assist students in learning more about the field. Research limitations/implications – Additionally, more practical information should be included in accounting courses, along with effective teaching strategies, and internships and required courses should be incorporated into the college curriculum and actively shared on social media. Keywords: Theory of Reasoned Action (TRA), Convictions, Accounting Career
Co-Authors Adiwidya, Andre Suwardana Ardiles, Sopaheluwakan Alesandro Febrianti , Oei Venny Gajah, Deni Ali Marwan Halinda, Maulana Fauzan Athalla Hidayat, Putri Naila Alyana Indra Chandra Kampong, Prichel Adisatya Lalintia, Irvin Judah Mardiana Mardiana Okthaviany, Indah Cikal Al Gyfary Rahmat Awaludin Salam Ummi, Annisa Zahwatul