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All Journal Jurnal Teknologi Informasi dan Ilmu Komputer Jurnal Fisika Unand Indonesian Journal of Tropical and Infectious Disease
Tri Anggono Prijo, Tri Anggono
Department of Physics, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health

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OPTIMATION OF 48 kHz ULTRASONIC WAVE DOSE FOR THE INACTIVATION OF Salmonella typhi Lestari, Dwi May; Prijo, Tri Anggono; Astuti, Suryani Dyah
Indonesian Journal of Tropical and Infectious Disease Vol. 5 No. 4 (2015)
Publisher : Institute of Topical Disease Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (474.592 KB) | DOI: 10.20473/ijtid.v5i4.2006

Abstract

This study was aimed to determine the effect of ultrasonic dose exposure which could decrease the viability of Salmonella typhi by using the variation of exposure time (15, 20, 25, and 30 minutes) and volume of bacterial suspension (2, 4, 6, and 8 ml) at constant power. The sample used was Salmonella typhi. Ultrasonic wave transmitter was a piezoelectric tweeter with 0,191 watts of power and 48 kHz frequency generated by the signal generator. Piezoelectric tweeter was a kind of transducer which converted electrical energy into ultrasonic energy. This research was an experimental laboratory with a completely randomized design. The decrease of bacterial percentage was calculated by using TPC (Total Plate Count). Data were analyzed by using One Way Anova. The results showed that the variation of exposure time and volume of bacterial suspension gave significant effect on the percentage of Salmonella typhi kill. The most optimal of ultrasonic dose exposure to kill Salmonella typhi was 281.87 J/ml with 100% bacterial kill.
Pengembangan Sistem Kontrol dan Pemantauan Tetesan Cairan Infus Otomatis Berbasis Labview dengan Logika Fuzzy Yunardi, Riky Tri; Setiawan, Dani; Maulina, Farah; Prijo, Tri Anggono
Jurnal Teknologi Informasi dan Ilmu Komputer Vol 5 No 4: Agustus 2018
Publisher : Fakultas Ilmu Komputer, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (486.101 KB) | DOI: 10.25126/jtiik.201854766

Abstract

Dalam instrumentasi medis infus merupakan perangkat yang digunakan untuk mengalirkan cairan, obat atau nutrisi secara intravena. Fungsi utama dari infus yaitu memberikan cairan secara periodik pada pasien. Perangkat infus saat ini, untuk mengendalikan kecepatan tetesan cairan dilakukan secara manual oleh staf medis. Masalah yang sering terjadi, seperti penyumbatan atau kehabisan isi cairan dan apabila tidak segera ditangani akan berbahaya bagi pasien. Penelitian ini bertujuan untuk mengembangkan sistem kontrol dan pemantauan aliran cairan infus secara otomatis. Dengan menggunakan LabVIEW National Instruments untuk memantau tetesan cairan infus. Sistem kontrol logika Fuzzy diimplementasikan dengan menggunakan mikrokontroler berbasis ATmega, yang dilengkapi dengan pompa udara, motor stepper dan pendeteksi aliran cairan. Sistem yang telah dibuat ini dapat dikembangkan untuk membantu tenaga medis dalam memantau kecepatan tetesan cairan infus untuk mencegah risiko terhadap pasien. AbstractIn the medical instrumentation infusion is a device used to drain fluids, medication or nutrients intravenously. The main function of the infusion is to give fluids periodically in patients. Infusion device at this time, to control the speed of the liquid droplets is done manually by the medical staff. Problems often occur, such as a blockage or run out of the fluid content and if not promptly treated can be harmful to the patient. This research aims to develop a prototype of control system and monitoring of the infusion liquid droplets automatically. By using the National Instruments LabVIEW to monitor the flow of intravenous fluids. The Fuzzy logic control system is implemented using an ATmega based microcontroller, equipped with air pumps, stepper motors and liquid flow detection. The performance of the prototype system of monitoring the flow of intravenous fluids automatically have a success rate of 96.75% at the set point value of 20 drops in 1 minute. 
Kajian Biofisika FRRS Untuk Mengurangi Nyeri Kelelahan Pada Kaki Dengan Stimulasi Listrik dan Magnet Wardhani, Primasari Cahya; Puspitasari, Nia Dwi; Billah, Zakiyah Dania; Prijo, Tri Anggono; Aryaseta, Bagas; Sakinah, Sakinah; Wulan, Widya Rachma; Munir, Syahrul
Jurnal Fisika Unand Vol 13 No 6 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.6.762-770.2024

Abstract

This research aims to design and test the effectiveness of the Foot Reflection-Relaxation Stimulator (FRRS), which combines electrical and magnetic stimulation as a reflexology therapy method to reduce pain caused by fatigue. FRRS is designed to stimulate reflex points in the feet by applying principles of physics such as static magnetic fields and Lorentz force, which are expected to enhance blood circulation and relax tense muscles. The testing was conducted on 25 healthy male participants who experienced leg fatigue after traveling a distance of 20 km. Pain levels were measured using the Numerical Rating Scale (NRS) before and after treatment with FRRS. The results showed a significant decrease in pain scale, from an average of 7 before treatment to 3.12 after treatment. The use of FRRS has proven effective in reducing pain due to fatigue in the legs, which is believed to be due to increased blood circulation and muscle relaxation. Thus, FRRS can be a practical and efficient solution to improve the quality of life for individuals who often experience fatigue and pain in their legs.
Co-Authors Aryaseta, Bagas Billah, Zakiyah Dania Dani Setiawan Dwi May Lestari, Dwi May Maulina, Farah Nia Dwi Puspitasari Sakinah Sakinah Suryani Dyah Astuti Syahrul Munir Wulan, Widya Rachma Yunardi, Riky Tri