ABSTRAKPenggunaan teknologi komunikasi dengan menggunakan kabel kini sudah tergantikan oleh tekno... more ABSTRAKPenggunaan teknologi komunikasi dengan menggunakan kabel kini sudah tergantikan oleh teknologi komunikasi tanpa kabel, dimana kebanyakan pengguna menggunakan perangkat access point yang memiliki jangkauan pancaran terbatas karena pola radiasi omnidirectional, sehingga diperlukan antena yang mempunyai pola radiasi directional untuk jangkauan pancaran yang lebih terarah. Antena yagi merupakan salah satu yang dapat digunakan untuk mengatasi masalah ini. Dalam penelitian ini, antena Yagi yang dirancang dapat diaplikasikan pada sistem WLAN. Hasil dari implementasi didapatkan bahwa antena Yagi dapat bekerja pada frekuensi kerja WLAN 2,4 GHz. Dan selainitudiperoleh level kuat medan dengan rata-rata peningkatan penguatan antena yagi terhadap antena omni sebesar 12,1 dB. Disamping itu diperoleh gain antena yagi sebesar 16 dB sedangkan hasil simulasi sebesar 10 dB, beamwidth vertikal 250 dan horizontal 260, dan bandwidth antena 150 MHz, Pada penelitian ini hasil yang didapatkan dibandi...
Penelitian ini bertujuan untuk menganalisis pengaruh functional proximity terhadap loyalty dimedi... more Penelitian ini bertujuan untuk menganalisis pengaruh functional proximity terhadap loyalty dimediasi oleh time saving. Maraknya bisnis ritel besar yang mengalami kerontokan pada tahun 2019 dan didikuti dengan pembukaan gerai baru Indomaret sebanyak 600- 1000 gerai menjadi fenomena menarik yang mendasari pnelitian ini. Fenomena ini menandakan bahwa masyarakat lebih berminat untuk berbelanja di gerai ritel kecil daripada gerai ritel besar. Jarangnya penelitian yang menganalisis pengaruh kedekatan dan waktu juga mendasari penelitian ini. Penelitian yang dilakukan oleh Gahinet (2015) yang menganalisis pengaruh antara dimensi kedekatan dan dimensi waktu untuk melihat kesuksesan bisnis ritel kecil, menjadi dasar acuan penelitian ini. Penelitian ini dilakukan dengan mengambil sampel 150 pelanggan Indomaret yang area Surabaya. Alat pengumpulan data yang digunakan adalah kuesioner. Data yang diperoleh diolah menggunakan teknik analisis Partial Least Square dengan menggunakan program SmartPLS...
Proceedings of the 2nd International Conference on High Performance Compilation, Computing and Communications - HP3C, 2018
Drowsiness is one of the main factors that contribute to the occurrence of accidents, particularl... more Drowsiness is one of the main factors that contribute to the occurrence of accidents, particularly in the transportation sector. While the effects of sleep deprivation on cognitive functions have been reported, the exact relationships remain a critical issue. This study aimed at quantifying the effects of extreme sleep deprivation on vigilance, fatigue, and performance during simulated train driving. A total of 12 participants were asked to drive a train simulator continuously for 4 hours, either in a sleep deprived condition (2-hr of sleep) or normal (8-hr of sleep) condition. Dependent variables obtained during the task included Psychomotor Vigilance Task (PVT) parameters, degree of fatigue (assessed via Visual Analogue Scale/VAS) and sleepiness (reported using Karolinska Sleepiness Scale/KSS), and driving performance (the number of speed limit violations). Findings from this study demonstrated substantial decrements in vigilance in the sleep-deprived condition. This condition also resulted in 75% increase in speed violation and a two-fold increase in the degree of fatigue and sleepiness. Extreme sleep deprivation was clearly associated with substantially poorer response. The exact effects, however, were dependent upon the types of responses.
Fatigue is a significant contributor to motor-vehicle accidents and fatalities. The purpose of th... more Fatigue is a significant contributor to motor-vehicle accidents and fatalities. The purpose of this study was to evaluate the use of neurobehavioral task (i.e. Psychomotor Vigilance Task (PVT) and Stroop Test) as fatigue detection technology of motor-vehicle drivers. Twelve male participants (M ± SD; 35.58 ± 3.58 years) were asked to drive 6-hour long into 2 trip (Bandung – Bekasi and Bekasi – Bandung). Results showed that neurobehavioral task may be useful to detect the fatigue of motor vehicle’s driver, specifically using this three parameters, i.e. PVT-M, #L, and RTCA. Mental fatigue score from SOFI had a significant correlation with those parameters. Regular check for drivers (i.e. before, during, and after the duty) using neurobehavioral task may improve the impact of FRMS implementation in Indonesia. Furthermore, PVT, as the gold standard of application using this approach, may be replaced by a shorter test, such as Stroop Test.
IOP Conference Series: Materials Science and Engineering, 2021
The rapid development of information technology has changed various sector of our life, including... more The rapid development of information technology has changed various sector of our life, including economy. A number of startup companies in Indonesia has been utilized technology to deliver financial services to its customer. One of them attempts to answerthe needs of university students in Indonesia for an alternative source of funding, who develop a lending mobile application for student. An initial study using interview and secondary data found that the users still find difficulties to use the mobile application. Usability is one approach that can be used to minimize the problem. The purpose of this study is to increase a fintech mobile application’s usability by conducting evaluation of several features including, 'creating a new account', 'completing profile registration', 'applying for university tuition lending', and 'applying for goods lending.' Usability evaluation was conducted by testing the effectiveness, efficiency, and satisfaction throu...
ABSTRAKPenggunaan teknologi komunikasi dengan menggunakan kabel kini sudah tergantikan oleh tekno... more ABSTRAKPenggunaan teknologi komunikasi dengan menggunakan kabel kini sudah tergantikan oleh teknologi komunikasi tanpa kabel, dimana kebanyakan pengguna menggunakan perangkat access point yang memiliki jangkauan pancaran terbatas karena pola radiasi omnidirectional, sehingga diperlukan antena yang mempunyai pola radiasi directional untuk jangkauan pancaran yang lebih terarah. Antena yagi merupakan salah satu yang dapat digunakan untuk mengatasi masalah ini. Dalam penelitian ini, antena Yagi yang dirancang dapat diaplikasikan pada sistem WLAN. Hasil dari implementasi didapatkan bahwa antena Yagi dapat bekerja pada frekuensi kerja WLAN 2,4 GHz. Dan selainitudiperoleh level kuat medan dengan rata-rata peningkatan penguatan antena yagi terhadap antena omni sebesar 12,1 dB. Disamping itu diperoleh gain antena yagi sebesar 16 dB sedangkan hasil simulasi sebesar 10 dB, beamwidth vertikal 250 dan horizontal 260, dan bandwidth antena 150 MHz, Pada penelitian ini hasil yang didapatkan dibandi...
Penelitian ini bertujuan untuk menganalisis pengaruh functional proximity terhadap loyalty dimedi... more Penelitian ini bertujuan untuk menganalisis pengaruh functional proximity terhadap loyalty dimediasi oleh time saving. Maraknya bisnis ritel besar yang mengalami kerontokan pada tahun 2019 dan didikuti dengan pembukaan gerai baru Indomaret sebanyak 600- 1000 gerai menjadi fenomena menarik yang mendasari pnelitian ini. Fenomena ini menandakan bahwa masyarakat lebih berminat untuk berbelanja di gerai ritel kecil daripada gerai ritel besar. Jarangnya penelitian yang menganalisis pengaruh kedekatan dan waktu juga mendasari penelitian ini. Penelitian yang dilakukan oleh Gahinet (2015) yang menganalisis pengaruh antara dimensi kedekatan dan dimensi waktu untuk melihat kesuksesan bisnis ritel kecil, menjadi dasar acuan penelitian ini. Penelitian ini dilakukan dengan mengambil sampel 150 pelanggan Indomaret yang area Surabaya. Alat pengumpulan data yang digunakan adalah kuesioner. Data yang diperoleh diolah menggunakan teknik analisis Partial Least Square dengan menggunakan program SmartPLS...
Proceedings of the 2nd International Conference on High Performance Compilation, Computing and Communications - HP3C, 2018
Drowsiness is one of the main factors that contribute to the occurrence of accidents, particularl... more Drowsiness is one of the main factors that contribute to the occurrence of accidents, particularly in the transportation sector. While the effects of sleep deprivation on cognitive functions have been reported, the exact relationships remain a critical issue. This study aimed at quantifying the effects of extreme sleep deprivation on vigilance, fatigue, and performance during simulated train driving. A total of 12 participants were asked to drive a train simulator continuously for 4 hours, either in a sleep deprived condition (2-hr of sleep) or normal (8-hr of sleep) condition. Dependent variables obtained during the task included Psychomotor Vigilance Task (PVT) parameters, degree of fatigue (assessed via Visual Analogue Scale/VAS) and sleepiness (reported using Karolinska Sleepiness Scale/KSS), and driving performance (the number of speed limit violations). Findings from this study demonstrated substantial decrements in vigilance in the sleep-deprived condition. This condition also resulted in 75% increase in speed violation and a two-fold increase in the degree of fatigue and sleepiness. Extreme sleep deprivation was clearly associated with substantially poorer response. The exact effects, however, were dependent upon the types of responses.
Fatigue is a significant contributor to motor-vehicle accidents and fatalities. The purpose of th... more Fatigue is a significant contributor to motor-vehicle accidents and fatalities. The purpose of this study was to evaluate the use of neurobehavioral task (i.e. Psychomotor Vigilance Task (PVT) and Stroop Test) as fatigue detection technology of motor-vehicle drivers. Twelve male participants (M ± SD; 35.58 ± 3.58 years) were asked to drive 6-hour long into 2 trip (Bandung – Bekasi and Bekasi – Bandung). Results showed that neurobehavioral task may be useful to detect the fatigue of motor vehicle’s driver, specifically using this three parameters, i.e. PVT-M, #L, and RTCA. Mental fatigue score from SOFI had a significant correlation with those parameters. Regular check for drivers (i.e. before, during, and after the duty) using neurobehavioral task may improve the impact of FRMS implementation in Indonesia. Furthermore, PVT, as the gold standard of application using this approach, may be replaced by a shorter test, such as Stroop Test.
IOP Conference Series: Materials Science and Engineering, 2021
The rapid development of information technology has changed various sector of our life, including... more The rapid development of information technology has changed various sector of our life, including economy. A number of startup companies in Indonesia has been utilized technology to deliver financial services to its customer. One of them attempts to answerthe needs of university students in Indonesia for an alternative source of funding, who develop a lending mobile application for student. An initial study using interview and secondary data found that the users still find difficulties to use the mobile application. Usability is one approach that can be used to minimize the problem. The purpose of this study is to increase a fintech mobile application’s usability by conducting evaluation of several features including, 'creating a new account', 'completing profile registration', 'applying for university tuition lending', and 'applying for goods lending.' Usability evaluation was conducted by testing the effectiveness, efficiency, and satisfaction throu...
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