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All Journal Jurnal Natur Indonesia JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Journal of Multidisciplinary Applied Natural Science Journal of Energy, Material, and Instrumentation Technology Jurnal Abdimas Kartika Wijayakusuma Makara Journal of Technology
Sri Wahyu Suciyati
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Journal : Journal of Energy, Material, and Instrumentation Technology

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Smart Green Box Trash Design Based on HC-SR04 Sensor Arduino Uno Integrated Dika, Mahardika Setiawan; Suciyati, Sri Wahyu; Supriyanto, Amir; Pauzi, Gurum Ahmad
Journal of Energy, Material, and Instrumentation Technology Vol 4 No 3 (2023): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v4i1.115

Abstract

This research has realized the design of a smart green trash box based on the HC-SR04 sensor, which is integrated with Arduino Uno. This research aims to design and build a digital instrumentation system based on Arduino Uno, applying Ultrasonic Sensors to the Green Box Trash System. In addition, this system is equipped with an information display via LCD and speakers so that we can find out the contents of the green trash box. Data retrieval by detecting objects with a distance of less than 10 cm to open the trash and measure the volume in the green trash box. The research results are displayed as a prototype Smart Green Trash Box design. Based on the HC-SR04 Sensor Integrated by Arduino Uno. The ultrasonic sensor in the Green Box Trash system works well by measuring the volume and can detect when an object is approaching with a distance of less than 10 cm. Assembling the green box using the HC-SR04 sensor, which is integrated with Arduino Uno functions according to the program created if, in the green box, there is HC-SR04 1 sensor trash, it measure the volume of trash and then display it through the LCD, and if there is an object approaching the HC-SR04 sensor 2, then the servo moves so that the green trash box can be opened. The Green Trash box can display trash volume and time on the 16x2 character LCD in real-time with the program uploaded to Arduino as monitoring.
Design of a Classroom Noise Monitoring Tool Using a KY-037 Sound Sensor Based on Wemos D1R1 Rifqah, Raden Ayu Nurfadhillah; Suciyati, Sri Wahyu; Surtono, Arif; Pauzi, Gurum Ahmad
Journal of Energy, Material, and Instrumentation Technology Vol 4 No 4 (2023): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v4i4.118

Abstract

The noise level in the room is one of the factors that can influence teaching and learning activities. Research on classroom noise levels has been done using the Wemos D1 R1-based KY-037 sound sensor. This research aims to determine the noise level in the classroom and be able to monitor the noise level in the room. Data collection was carried out by sound detection in the classrooms of SMA Negeri 13 Palembang from 07.00 – 12.00 WIB for seven days. The research results show that the system is functioning well, indicated by the situation when the noise level is less than 45 dB, and the LED lights up. When the noise level is more than or equal to 45 dB, then the yellow LED, mini DFPlayer, and speaker will light up, and when the noise level is more than or equal to 55 dB, then the red USB LED, mini DFPlayer, and speaker will light up. Data on noise levels and LED conditions received can be monitored via the web server. The system used on the web server is localhost access on a computer that can be monitored within the school environment.
Design and Electrical Characterization of Plant Microbial Fuel Cell (PMFC) Using Eichhornia crassipes by Varying the Electrode Distance and Effect Light of the Sun Suryani, Mei; Pauzi, Gurum Ahmad; Junaidi, Junaidi; Suciyati, Sri Wahyu
Journal of Energy, Material, and Instrumentation Technology Vol 5 No 1 (2024): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v5i1.159

Abstract

The Plant Microbial Fuel Cell (PMFC) design using water hyacinth has been successfully created. The PMFC was then treated by varying the distance of the electrode and giving the effect of sunlight. The electrodes used are Cu-Zn pairs where the electrode distance varies, with values of 3, 6, 9, and 12 cm. Furthermore, the data was taken with PMFC conditions placed outside and indoors for 14 days (331 hours). The results showed that PMFC with an electrode distance of 3 cm produced a more excellent value of electrical power than the other electrode distances, which was 0.6786 mW on the second day at the 37th hour or in the afternoon at 13.00 WIB. In general, the electrical characteristics produced by PMFCs, which are affected by sunlight, produce greater electrical power than PMFCs indoors.
The Effect of H2SO4 Variations on the Synthesis and Characterization of Nanocellulose Using Pineapple Peel Fiber Sitohang, Rosanti; Manurung, Posman; Suciyati, Sri Wahyu; Karo, Pulung Karo
Journal of Energy, Material, and Instrumentation Technology Vol 5 No 2 (2024): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v5i2.168

Abstract

Manufacturing nanocellulose made from pineapple peel fiber has been carried out using acid hydrolysis. This study aims to determine the effect of variations in H2SO4 on the synthesis of nanocellulose in pineapple peel fibers and on the crystal structure, surface morphology, and constituent elements of pineapple skin fiber nanocellulose. The variations of H2SO4 used were 5, 10, 15 and 20%. X-ray diffraction (XRD) and Scanning Electron microscopy (SEM) are characterizations used. The results of XRD characterization showed that the size of the resulting crystallite had met the appropriate size in the range of values from 2.03 – 2.21 nm. The results of SEM characterization show that the image is not porous and lumpy.
Effect of Variation H2SO4 on the Manufacture of Nanocellulose from Corn Cobs Pertiwi, Mega; Manurung, Posman; Suciyati, Sri Wahyu; Karo, Pulung Karo
Journal of Energy, Material, and Instrumentation Technology Vol 5 No 3 (2024): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v5i3.173

Abstract

The acid hydrolysis method has been used to manufacture nanocellulose from corn cobs. This study aims to determine the effect of variations in the concentration of H2SO4 on the characteristics of nanocellulose produced from corn cobs and their surface morphology. The variations of H2SO4 used were 5, 10, 15, and 20%. X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) are characterizations used. The results of XRD characterization showed that the crystallite size obtained followed the nanocellulose crystallite size, which was 1.79-2.59 nm. The SEM characterization showed that the resulting nanocellulose's surface morphology was lumpy and non-porous.
Production of Nanocellulose from Kepok Banana Peel Waste Using Acid Hydrolysis Method Putri, Faradilla Nabila; Manurung, Posman; Suciyati, Sri Wahyu; Karo, Pulung Karo
Journal of Energy, Material, and Instrumentation Technology Vol 4 No 3 (2023): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v4i3.174

Abstract

Research on the production of nanocellulose from kepok banana peel waste has been carried out using the Acid Hydrolysis method with H2SO4 Sulfuric Acid. This study aims to determine the effect of giving H2SO4 on kepok banana peels and the crystal structure and surface morphology of nanocellulose on kepok banana peels. The production of nanocellulose was carried out in three stages: delignification using 10% NaOH, bleaching using 10% H2O2, and isolation of nanocellulose using H2SO4 with various concentrations of 5, 10, 15, and 20%. This research uses X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) as its characterization. The resulting crystallite size ranges from 3.58 to 4.15 nm, producing a lump-like morphological structure.
LPG Safety Monitoring System Using Artificial Neural Network with Back Propagation Method Based on The Internet of Things (IoT) Abidin, Ramadhani; Supriyanto, Amir; Surtono, Arif; Suciyati, Sri Wahyu
Journal of Energy, Material, and Instrumentation Technology Vol 5 No 3 (2024): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v5i3.176

Abstract

This study aims to create an Artificial Neural Network (ANN) to determine the results of LPG gas monitoring based on gas leakage levels, smoke levels, fires, and ambient temperatures and apply Internet of Things technology in the monitoring system. Variations in the number of nodes in the hidden layer indicate that the ANN performance will be maximal, with seven nodes in the hidden layer with an accuracy value of 99.63%, a precision of 100%, and a loss function of 0.423%. The microcontroller used is NodeMCU ESP32S, with input from the MQ6 sensor to detect LPG gas leaks, an infrared sensor to detect flames, an MQ-2 sensor to detect smoke, and a DHT-22 sensor to measure the ambient temperature. The resulting system output is a monitoring display using the Blynk platform, fans and Buzzers controlling, and WhatsApp notifications. The system will turn on the fan when the detected LPG level exceeds 250 ppm.
PEMBUATAN NANOSELULOSA DARI KAYU LUNAK PINUS (Pinus merkusii) MENGGUNAKAN METODE HIDROLISIS ASAM Anggraini, Anisyah; Manurung, Posman; Suciyati, Sri Wahyu; Yulianti, Yanti
Journal of Energy, Material, and Instrumentation Technology Vol 4 No 4 (2023): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v4i4.186

Abstract

PRODUKSI ALAT ORBITAL SHAKER DENGAN PENGATUR WAKTU DAN KECEPATAN PUTAR MENGGUNAKAN POTENSIOMETER BERBASIS ARDUINO UNO Vicias, Icha Arum; Pauzi, Gurum Ahmad; Ayu, Humairoh Ratu; Suciyati, Sri Wahyu
Journal of Energy, Material, and Instrumentation Technology Vol 5 No 1 (2024): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v5i1.219

Abstract

Mixing solutions is an everyday activity performed in laboratory spaces. Mixing solutions manually by shaking is less effective, as it takes a long time and requires much effort. Therefore, an orbital shaker has been created to mix solutions with a digital unidirectional movement. This device is designed using a DC motor as the driver, an L298N motor driver, an Arduino Uno as the processor, a potentiometer to adjust the speed and rotation time, a seven-segment TM1637 display to show the set values, and push buttons as start and reset buttons. Testing the orbital shaker begins by inputting PWM values on the potentiometer and then measuring the DC motor's rotation speed (rpm) using a tachometer. The calibration testing includes calibrating the rotation speed values (rpm) and time. The results of rotation speed calibration testing show an average error value of 1.09%, accuracy of 98.91%, and precision of 99.77%. In comparison, time calibration yields an average error value of 2.45%, accuracy of 97.55%, and precision of 99.99%. Subsequently, speed testing is conducted using a solution load ranging from 100 to 1000 g, with each increment of 100 g testing rotation speeds from 240 to 360 rpm. The results indicate that when a load is applied, there is a decrease in the measured rotation speed compared to the input speed. The orbital shaker can rotate within a speed range of 240 to 374 rpm and a maximum time of 90 minutes with a maximum load of 1000 g.
Pengaruh Hidrolisis Asam pada Pembuatan Nanoselulosa dari Swietenia mahagoni Gultom, Rysa Sonya Reni Paulin; Manurung, Posman; Karo Karo, Pulung; Suciyati, Sri Wahyu
Journal of Energy, Material, and Instrumentation Technology Vol 5 No 4 (2024): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v5i4.184

Abstract

The extraction of the mahogany pulp as the main ingredient for the preparation of nanocellulose was carried out using the acid hydrolysis method. Sulfuric acid (H2SO4) was used to hydrolyze the primary constituent and sodium hydroxide (NaOH) was utilized in the delignification process. The purpose of this study is to identify the properties of nanocellulose made from mahogany hardwood on fluctuations in H2SO4 concentrations, particularly on concentration 19, 29, 39, and 45%. A Fourier Transform Infrared (FTIR) spectrophotometer, Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD) were used to analyze the sample product, which is cellulose nanocrystal powder. The XRD results stated that the diameter of the nanocellulose crystal size ranged from 3-6 nm, while the SEM results showed that the sample's morphology resembled a stacked arrangement of stones. Meanwhile, the results of the FTIR indicated that the functional groups produced consisted of hydroxyl, aliphatic, aromatic rings, aryl carbonyls, and pyranose. Based on the tests, the best sample is obtained as a concentration variation of H2SO4 39%, which produces a diameter of 3.6 nm with a crystallinity index as high as 80.48%.
Co-Authors Abd. Rasyid Syamsuri Abidin, Ramadhani Aewaditha, Randha Kentama Ahmad Saudi Samosir Akhmad Dzakwan, Akhmad Anggraini, Anisyah Aprilia, Ayu Apriyanto, Donni Kis Dika, Mahardika Setiawan Dwi Asmi Dyan Isworo Gultom, Rysa Sonya Reni Paulin Gurum A P Gurum A P, Gurum A P Hasibuan, Febriandi Humairoh Ratu Ayu Junaidi Junaidi Karo Karo, Pulung Karo, Pulung Karo Mega Pertiwi, Mega Muhammad Syarif Hidayatullah, Muhammad Syarif Nurcahayaniati, Hikmah Pauzi, Gurum Ahmad Posman Manurung Prastica, Lusia Pubiyanti, Intan Putra, Dio Aditia Putri, Faradilla Nabila Rifqah, Raden Ayu Nurfadhillah Sahtoni Sahtoni, Sahtoni Shabrina, Shabrina Yakosati Sitohang, Rosanti Sri Ratna Sulistiyanti Suharyadi, Edy Suprihatin Suprihatin Supriyanto, Amir Supriyanto, Amir Surtono, Arif Suryani, Mei Susi Harnani, Susi Syafriadi Syafriadi Vicias, Icha Arum Warsito Warsito Warsito, W Wasinton Simanjuntak Yanti Yulianti Yuniar, Noeris