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Pemanfaatan Aplikasi Teknologi Informasi dalam Eduwisata di Kawasan Kalurahan Sumbersari, Kecamatan Moyudan, Kabupaten Sleman untuk Meningkatkan Minat Belajar Biologi dan Fisika Pada Siswa SMP dan SMA Rahayu, Lucky Putri; Suweni Muntini, Melania; Nurhidayati, Tutik; Bagus Saputro, Triono; Suyatno, Suyatno; Yuwana, Lila; Indrawati, Susilo; Fatimah, Iim; Priambodo, Joko; Rahman Aliffianto, Lutfir; Alawiyyah, Mujtahidatul
Sewagati Vol 9 No 2 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i2.2585

Abstract

Rendahnya minat belajar Biologi dan Fisika di kalangan pelajar menjadi tantangan serius dalam dunia pendidikan. Pengabdian kepada Masyarakat ini bertujuan untuk mengatasi permasalahan tersebut melalui pengembangan inovasi pembelajaran berbasis teknologi informasi. Program Pengabdian kepada Masyarakat yang bertajuk "Pemanfaatan Aplikasi Teknologi Informasi dalam Eduwisata di Kawasan Kalurahan Sumbersari" ini mengintegrasikan aplikasi edukatif interaktif dengan program eduwisata yang berfokus pada energi berkelanjutan. Melalui pengembangan aplikasi edukatif interaktif dan program eduwisata yang terintegrasi, kami bertujuan untuk mengatasi rendahnya minat belajar Biologi dan Fisika di kalangan pelajar. Aplikasi ini dirancang untuk menyajikan konten pembelajaran yang relevan, menarik, dan eksperimental, khususnya terkait konsep-konsep Biologi dan Fisika yang berkaitan dengan energi terbarukan, seperti Pembangkit Listrik Tenaga Surya (PLTS). Dengan menggabungkan kunjungan lapangan, simulasi, dan workshop, program ini diharapkan dapat meningkatkan pemahaman konsep, keterampilan berpikir kritis, serta minat belajar siswa. Hasil yang diharapkan dari program ini adalah peningkatan minat belajar dan pemahaman siswa terhadap materi Biologi dan Fisika, serta keterlibatan aktif dalam aksi iklim melalui pemanfaatan energi terbarukan. Selain itu, program ini juga berkontribusi pada pencapaian tujuan pembangunan berkelanjutan, khususnya dalam hal pendidikan berkualitas pada tujuan 4 dan aksi iklim nomor 13. Keberlanjutan program ini akan dijaga melalui kolaborasi berkelanjutan dengan berbagai pihak, termasuk pendidik di Desa Moyudan, dan masyarakat setempat, yang diharapkan dapat menjadikannya sebagai model pembelajaran yang inovatif dan berkelanjutan.
Vibration Classification Of Intact And Cracked Brick Materials Using Fast Fourier Transform–Extreme Learning Machine For Structural Damage Early Detection Khoiri, Mohamad; Farid, Imam Wahyudi; Priambodo, Joko; Rahayu, Lucky Putri; Mahira, Balqis
Jurnal Teknik Informatika (Jutif) Vol. 6 No. 4 (2025): JUTIF Volume 6, Number 4, Agustus 2025
Publisher : Informatika, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jutif.2025.6.4.4997

Abstract

Structural damage in buildings is often initiated by small cracks in lightweight brick elements, which, if undetected, may compromise structural safety. This study developed a vibration-based classification system using the ADXL345 accelerometer, Fast Fourier Transform (FFT), and Extreme Learning Machine (ELM) for early detection of such damage. Vibration data were collected along three axes (X, Y, and Z) with excitation frequencies ranging from 10–50 Hz. FFT analysis revealed clear distinctions between intact and cracked bricks, where cracked samples exhibited higher amplitudes and multiple resonance peaks. These frequency-domain features were then processed by ELM classifier. ELM achieved high computational efficiency and demonstrated strong predictive capability, correctly classifying 7,855 intact and 4,548 cracked samples. However, it also produced 1,879 false positives and 5,100 false negatives, resulting in an RMSE of 0.548. While the model proved more accurate in identifying intact bricks, its sensitivity to crack detection remains a challenge. Overall, FFT–ELM framework shows promising potential as a fast, non-destructive, and scalable approach for structural health monitoring, with further refinements needed to improve detection accuracy of damaged materials.
Penggunaan Metode PID Untuk Sistem Kontrol Gerak Zig-Zag Pada Pengujian Seakeeping Miniatur Kapal Cepat lucky putri rahayu; Ahmad Rifky Perdana; Chandra Permana; Ciptian Weried Priananda; Fauzi Imaduddin Adhim
Journal of Applied Electrical Engineering Vol. 6 No. 2 (2022): JAEE, December 2022
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaee.v6i2.4848

Abstract

Pada pengujian seakeeping miniatur kapal cepat gerak zig-zag mengalami overshoot sebesar 13,5° melewati jalur yang telah ditentukan 20°, sehingga tidak terwujud konsistensi kestabilan kapal dan kemiringan arah sudut yang berakibat pada hasil pengambilan data. Pada penelitian ini berfokus pada pembuatan sistem kontrol otomatis untuk mengendalikan gerak rudder. Metode yang digunakan yaitu PID dengan tuning Ziegler-Nichols. Sistem ini menggunakan teenseyduino sebagai mikrokontroler untuk mengontrol dua servo motor sebagai rudder kapal, HWT 905 sebagai sensor dan motor DC sebagai laju kecepatan pada miniatur kapal cepat. Sensor HWT905 akan mendeteksi kemiringan arah pada badan kapal akibat gelombang. Berdasarkan hasil pengujian didapatkan parameter gain yang mampu memberikan hasil terbaik yaitu pada saat nilai Kp = 1,1, Ki = 3,3, Kd = 0,09, didapatkan nilai error steady state sebesar 15% dan overshoot sebesar 3°. Nilai rise time yang diperoleh sebesar 3 detik dan settling time diperoleh sebesar 5 detik yang menunjukkan bahwa gerak dari motor servo mulai stabil pada waktu tersebut.
Fuzzy implementation for temperature control on coffee roaster machine Adhim, Fauzi Imaduddin; Akbar, Ilham Syahrial; Istiqomah, Fivitria; Priananda, Ciptian Weried; Rahayu, Lucky Putri; Musthofa, Arif
Jurnal Nasional Aplikasi Mekatronika, Otomasi dan Robot Industri (AMORI) Vol. 3 No. 1 (2024): July
Publisher : Faculty of Vocational Studies - Research Center, DRPM ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

A roaster machine is a machine that is used for the process of determining the quality of the coffee it gets. The roaster machine at Puslitkoka still uses a manual process so that the Post Harvest operator always maintains the roasting process when researching to get quality coffee beans. The roaster machine at Puslitkoka is still maintained by the operator to stabilize the temperature of 140oC - 200oC with a time of 10 to 15 minutes to get the desired coffee beans. As a result of some of the problems above, it is necessary to develop a roaster machine. By adding a thermocouple sensor to measure the temperature that can move the servo valve to stabilize the gas output during the roasting process using the fuzzy logic method. When it reaches a temperature of 140oC the servo motor opens as input for coffee beans. All data obtained will be managed by Arduino Mega 2560. With the creation of this tool, it was found that the temperature control on the coffee roaster using the fuzzy method has a more minor average steady-state error of 5.85%. The conventional method has a larger error than fuzzy logic because the temperature increase is linear with time. For the required roasting time, the fuzzy method has a shorter time with an average of 549.67 seconds than the conventional method with an average time of 811.34 seconds.
The Characteristic of Variable Frequency Drive for Water Flow Control in the SFC Plant Sefi Novendra Patrialova; Destiarga Husein Wardhana; Lucky Putri Rahayu; Tedy Agasta1
IPTEK The Journal of Engineering Vol. 7 No. 1 (2021)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v7i1.a8415

Abstract

One of several techniques to control fluid flow-rate through a pump is using variable frequency drive. This paper presents how experiment be able to perceive the characteristic of variable frequency drive (VFD) to control water flow-rate in the Simulator Flow Control (SFC) plant. The SFC plant is developed for a fluid course learning simulator. The user would be able to set the desired value of frequency or flow-rate through a convenient interface. To provide it, the characteristic of VFD-frequency-to-flow-rate must be firstly observed, as reported in this paper. The fluid flow-rate control is designed without an electric valve, but using VFD to drive the 250 Watt water pump. In this first development, the SFC Plant successfully work with various water flow-rate from 2 Liter per minute until 20 Liter per minute by changing the frequency input of VFD. The water flow-rate was measured by manual rotameter, the flow sensor has not been applied yet in this first development. In this experiment, the VFD’s frequency was set from 10 Hz to 36 Hz with 2 Hz intervals. Result showed that VFD frequency is proportional to water flow-rate. The higher frequency given to VFD, the faster rotational motor of water pump generated and then given rise to water flow-rate. Using linear graphic approach, the characteristic is shown through the linearity coefficient of 0,68 and constant value of 3.43. This characteristic value would be useful for open-loop-control and user interface programming in next step of development.