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All Journal Jurnal Teori dan Aplikasi Fisika KAIBON ABHINAYA : JURNAL PENGABDIAN MASYARAKAT Journal of Energy, Material, and Instrumentation Technology Prosiding Konferensi Nasional PKM-CSR NEAR: Jurnal Pengabdian kepada Masyarakat

Sri Wahyu Suciyati

Universitas Lampung

Author-ID : 2522872

Humanities Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Health Professions Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Nursing Physics Public Health Social Sciences Transportation Other

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Efek Variasi Konsentrasi NaOH pada Pembentukan Struktur Selulosa Cladophora sp. Sri Wahyu Suciyati; Posman Manurung; Junaidi Junaidi; Rudy Situmeang
Jurnal Teori dan Aplikasi Fisika Vol 10, No 1 (2022): Jurnal Teori dan Aplikasi Fisika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v10i1.2888

The effect of NaOH concentration values was observed on the cellulose structure of Cladophora. Cladophora cellulose is synthesized from Cladophora sp., a green alga that lives in aquatic environments (seawater and freshwater) and soil surfaces (rocks and wetlands). Cellulose synthesis is carried out through the processes of bleaching, alkali hydrolysis, and acid hydrolysis. Bleaching uses NaClO2, alkaline hydrolysis uses NaOH with varying concentrations (0.4; 0.5; 0.6; 0.7; 0.8 M), while acid hydrolysis uses 5% HCl. The physical properties of cellulose were analyzed using Fourier Transformation Infra-Red (FTIR) to determine functional groups, X-Ray Diffraction (XRD) to determine crystal structure, and scanning electron microscopy (SEM) to determine the morphology of cellulose structure. FTIR pattern analysis showed peaks with OH group stretching at 3331, 3347, 3360 cm-1, CH group stretching at around 2929 cm-1, C = O stretching at 1640-1650 cm-1, and CH2 flexural stretching at 1420-1430 cm-1 in all samples. XRD pattern analysis confirmed the recovery of Cladophora cellulose from a highly crystalline of sample c (NaOH 0.5 M) with a crystallinity index of 94.0 % and a particle size of 31.54 nm. SEM image analysis showed the surface morphology of Cladophora rod-shaped raw material with an average diameter of 21.30 µm. At the same time, Cladophora cellulose refers to the formation of a web-like nanofibril network with an average diameter of 30.63 nm. These results indicate that the synthesis has successfully removed lignin, hemicellulose, and amorphous group in Cladophora and formed crystalline cellulose confirmed by nano-sized cellulose.

Sistem Otomasi Kincir Air Untuk Respirasi Udang Tambak Menggunakan Sensor Dissolved Oxygen (DO) Ari Fiyanti; Warsito Warsito; Sri Wahyu Suciyati
Jurnal Teori dan Aplikasi Fisika Vol 5, No 2 (2017): Jurnal Teori dan Aplikasi Fisika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v5i2.1811

Automation system waterwheel for farmed shrimp respiration have realized using dissolved oxygen sensors (DO). The DO sensor used to detect the levels of dissolved oxygen in the water. Digital data output sensor DO is connected to the computer via the arduino uno, furthermore the output data are recorded and displayed on the LCD monitor and a television series. Automation system using relay with a range of dissolved oxygen levels <4,00 mg/L for the condition of the windmills ON and >5,50 mg/L for the condition of the windmills OFF.

Analisis Laju Korosi pada Sistem Energi Listrik Alternatif Berbasis Elektrolit Air Laut Sinta Setiani Pangestu; Gurum Ahmad Pauzi; Sri Wahyu Suciyati
Jurnal Teori dan Aplikasi Fisika Vol 6, No 1 (2018): Jurnal Teori dan Aplikasi Fisika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v6i1.1821

It has been realized an instrument of generating electric power by using a series of Cu-Zn electrode and two different electrolyte types, that are pure seawaterand seawater that has been filtered and added sodium bicarbonate (NaHCO3). The instrument is designed to do charging and discharging seawater electrolyte manually. Electrolyte cell consist of 20 cell with 20 pairs of copper and zinc electrodes arranged in series. The instrument measurements are measuring the illumination of LED 3 watts and mass of zinc electrode. The Instrument was testedfor 72 hours with three times electrolyte charging every 24 hours. The result showed that the illumination were generated by instrument with both of electrolyte will decrease by time. The seawater was filtered and added NaHCO3 can turn on 3 wattsLED longer than the pure seawater.On the third day, corrosion rate of zinc electrode with pure seawater electrolyte is 9 times higher than seawater was filtered and added NaHCO3.

Aplikasi Sensor TGS2620 dan MQ138 untuk Mendeteksi Kematangan Buah Durian Berbasis Raspberry Pi 3B Dewi Puspitasari; Arif Surtono; Sri Wahyu Suciyati; Gurum Ahmad Pauzi
Jurnal Teori dan Aplikasi Fisika Vol 9, No 2 (2021): Jurnal Teori dan Aplikasi Fisika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v9i2.2760

Telah dilakukan penelitian dengan pengaplikasian sensor gas TGS 2620 dan MQ 138 untuk mendeteksi kematangan buah durian berbasis Raspberry Pi 3b. Penelitian ini dilakukan untuk menghasilkan alat deteksi tingkat kematangan buah durian. Durian diletakkan ke dalam ruang sampel yang berisi sensor gas. Metode klasifikasi yang digunakan untuk menentukan kematangan buah menggunakan K-Nearest Neighbor (KNN). Pengujian KNN dalam klasifikasi kematangan durian menggunakan sensor gas memiliki akurasi keseluruhan 91,07%.

Sistem Akuisisi Data Pengukuran Kadar Oksigen Terlarut Pada Air Tambak Udang Menggunakan Sensor Dissolved Oxygen (DO) Inda Robbihi Mardhiya; Arif Surtono; Sri Wahyu Suciyati
Jurnal Teori dan Aplikasi Fisika Vol 6, No 1 (2018): Jurnal Teori dan Aplikasi Fisika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v6i1.1836

It has done data acquisition of measurement and storage of dissolved oxygen values in shrimp pond water using DO sensorbased microcontroller Arduino UNO. The purpose of this study is measure and store the value of dissolved oxygen levels in realtime in shrimp pond. This system is designed using the DO sensor that uses UART communication. Tools and materials that used are laptop, Arduino UNO, USB and DO sensor. The principle of this research is that when the DO sensor is reach the water, the dissolved oxygen content data will be detected by sensor that connected to Arduino UNO. Arduino UNO will process and sends data and then displayed and analyzed in Microsoft Excel. The average measurements results of DO levels are in the range of 3 to 5 mg/l in rainy and the range 3 to 7 mg/l in cloudy

Rancang Bangun Alat Ukur Kekeruhan Air Menggunakan Fototransistor dan LED Inframerah Berbasis Arduino Uno Nita Suliyani; Sri Wahyu Suciyati; Gurum Ahmad Pauzi; Arif Surtono
Journal of Energy, Material, and Instrumentation Technology Vol 2 No 2 (2021): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

In this research, the water turbidity measurement tool based on Arduino Uno has been designed and built using phototransistors and infrared LEDs. This measuring instrument consists of a series of infrared sensors, Arduino as a process, LCD I2C as a value viewer, Micro SD as a data storage, and RTC as a timer. This study used two water samples with various concentrations. The sample used, namely distilled water plus impurities in the form of soil and ash. The distilled water used is still 100 ml with variations in the concentration of impurities ranging from 0,1-0,9 gr. Sensor test results show that the greater the turbidity level, the greater the voltage obtained. Sensor scanning ranges from 2,02 V-4,00 V for groundwater and 2,02 V-4,31 V for ash water. The reading uses a standard measuring instrument for groundwater ranging from 0 NTU to 331,4 NTU, while for ash water ranging from 0 NTU to 284,4 NTU. Data from the sensor test results in an equation used to convert the artificial measuring instrument's voltage value into a turbidity value. Then, data is taken using the same sample, so groundwater's turbidity value was obtained from 0 NTU to 318,94 NTU while for ash water from 0 NTU to 285,13 NTU. Based on the results, average accuracy for water was obtained. Soil amounted to 94,66%, while for ash water was 96,63%.

Kajian Simulasi Dinamika Molekul Adsorpsi Hidrogen pada Carbone Nanotube dengan Variasi Chirality dan temperatur Menggunakan Kode LAMMPS Erika Marinda Mufida; Sri Wahyu Suciyati; Gurum Ahmad Pauzi; Amir Supriyanto
Journal of Energy, Material, and Instrumentation Technology Vol 2 No 2 (2021): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Hydrogen adsorption has been simulated on carbon nanotubes for optimum hydrogen absorption. Parameters that affect the amount of hydrogen absorbed have been studied, such as the effect of chirality and temperature on hydrogen absorption in CNTs. The simulation method of hydrogen adsorption on carbone nanotubes uses molecular dynamics simulation code LAMMPS, applies Lennard-Jones interatomic potential and hydrogen atom movement using Van Der Waals force with Microcanonical Ensemble. Data analysis is the output of LAMPS in the form of data in XYZ format. The data contains information in the form of integration steps, number of atoms, temperature, pressure, potential energy, kinetic energy, volume, van der Waals energy, total simulation time and hydrogen absorption. The simulation results show that the optimum absorption occurs at run 10000 and a temperature of 100 K, for armchair chirality of 10 atoms, chirality of 12 atoms and zigzag chrality of 5 atoms. Formation of hydrogen coordinates with Avogadro software, formation of CNT coordinates with VMD software and visualization of hydrogen adsorption on CNTs using VMD software.

Analisis Jeruk dan Kulit Jeruk sebagai Larutan Elektrolit terhadap Kelistrikan Sel Volta suci asmarani; Sri Wahyu Suciyati; Amir Supriyanto
Jurnal Teori dan Aplikasi Fisika Vol 7, No 1 (2019): Jurnal Teori dan Aplikasi Fisika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v7i1.1919

It has been conducted a research to analyze Citrus sp as voltaic cell electrolyte liquid based on pH and fruit condition on its electrical properties. The research objective was to utilize citrus sp waste as an alternative source of electrical energy bio-battery. The materials required consists of a copper electrode (Cu), zinc (Zn), electrolyte liquid (50ml) from lime, lemon, medan orange and pontianak orange. Electrode copper Cu used as cathode and zinc (Zn) as anode. The conditions of liquid variations fresh, fermentation 48 hours, and putridity. The acidity level of the liquid was measured using pH meter. The best result of measuring without a load was found in putrid liquid of lemon, which was 19,36 V. Measurement using 1000Ω of load was obtained best result in the 48 hours fermentation of lime liquid, that are 2,369 mW, 0,762 mA and 3,11 V. For the measuring with additional LED, the best results are the liquid of lemon dan lime with permentation 48hours, with maximum 9 LED. The results are 7,144mW and 8,534 mW.

Implementasi Teknologi dan Internet Of Thing (IoT) Untuk Otomasi Penyiraman Tanaman Berbasis Telegram di SDN1 Triharjo Humairoh Ratu Ayu; Sri Wahyu Suciyati; Hapin Afriyani; Dwina Nurizky Syahputri
KAIBON ABHINAYA : JURNAL PENGABDIAN MASYARAKAT Vol. 4 No. 1 (2022)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/ka.v4i1.3960

SDN 1 Triharjo is committed to continuously improving student and school achievement, with a mission to create green and healthy schools. One of the standards that must be met to realize a green school is to take care of optical plants by making automatic plant sprinklers. School residents are still not aware of the importance of watering plants, because it will affect plant growth. Therefore, in this community service activity, assistance in the implementation of technology and internet of things (IoT) will be carried out for telegram-based plant watering automation. The direct involvement of teachers and students in implementing PkM activities is expected to increase the awareness of school residents to carry out environmental care behavior. The implementation of this activity is expected to be one of the added values for partner schools.

PELATIHAN KETERAMPILAN KHUSUS BAGI GURU IPA SMP/MTs KABUPATEN LAMPUNG TIMUR Amir Supriyanto; Sri Wahyu Suciyati; Runiyus Marjunus; Arif Surtono
Prosiding Konferensi Nasional Pengabdian Kepada Masyarakat dan Corporate Social Responsibility (PKM-CSR) Vol 3 (2020): Peran Perguruan Tinggi dan Dunia Usaha Dalam Pemberdayaan Masyarakat Untuk Menyongsong
Publisher : Asosiasi Sinergi Pengabdi dan Pemberdaya Indonesia (ASPPI)

Kompetensi dan keterampilan guru dalam pengelolaan laboratorium IPA SMP/MTs di Kabupaten Lampung Timur Provinsi Lampung masih rendah. Laboratorium IPA belum diberdayakan secara optimal dalam pembelajaran. Keterampilan khusus yaitu: mereparasi, memodifikasi dan menduplikasi alat-alat laboratorium yang dimiliki guru juga masih rendah. Di samping itu, kesempatan untuk mengikuti pelatihan keterampilan khusus laboratorium bagi guru IPA SMP/MTs masih minim. Tujuan kegiatan adalah untuk meningkatkan kompetensi keterampilan pengelola laboratorium IPA SMP/MTs di Kabupaten Lampung Timur. Metode kegiatan meliputi: tes awal, pemaparan materi (ceramah dan praktik yang diikuti peserta), dan tes akhir. Kegiatan dilaksanakan dua hari, yaitu tanggal 26—27 September 2019, di SMPN 1 Batanghari Kabupaten Lampung Timur. Jumlah peserta 48 orang guru, berasal dari 21 kecamatan di Kabupaten Lampung Timur. Hasil tes awal diperoleh nilai terendah 20, tertinggi 70, dan rata-rata 49. Pemberian materi dilaksanakan dengan metode ceramah, sedangkan pelatihan keterampilan peserta dibuat kelompok (satu kelompok terdiri atas 3—4 orang guru) dengan metode praktikum. Untuk mengetahui hasil pelatihan, di akhir kegiatan dilaksanakan tes. Hasil tes akhir diperoleh nilai terendah 50, tertinggi 90, dan rata-rata 69. Hal ini menunjukkan peningkatan komptensi dan keterampilan peserta yang ditunjukkan dengan peningkatan nilai tes. Materi tes berupa soal untuk mengetahui kompetensi dan keterampilan pengelolaan laboratorium.

Co-Authors Amir Supriyanto Ari Fiyanti Dewi Puspitasari Dwina Nurizky Syahputri Erika Marinda Mufida Gurum Ahmad Pauzi Gurum Akhmad Pauzi Hapin Afriyani Humairoh Ratu Ayu Inda Robbihi Mardhiya Junaidi Junaidi Marjunus, Roniyus Nita Suliyani Posman Manurung Rudy T M Situmeang Runiyus Marjunus Sinta Setiani Pangestu suci asmarani Surtono, Arif Warsito Warsito

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