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All Journal Community Development Journal: Jurnal Pengabdian Masyarakat Journal of Telecommunication, Electronics and Control Engineering (JTECE) Journal of Economic, Business and Engineering (JEBE)
Rizkha Ajeng Rochmatika
Politeknik Negeri Semarang
Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Health Professions Mechanical Engineering Public Health

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PELATIHAN PEMBUATAN VIDEO INTERAKTIF MENGGUNAKAN CAMTASIA UNTUK MEDIA PEMBELAJARAN DI SMK ROBBI RODLIYYA Afandi Nur Aziz Thohari; Angga Wahyu Wibowo; Kuwat Santoso; Nurseno Bayu Aji; Rizkha Ajeng Rochmatika; Vinda Setya Kartika; Aggie Brenda Vernandez; Hutama Arif Bramantyo; Muttabik Fathul Lathief
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 2 No. 2 (2021): Volume 2 Nomor 2 Tahun 2021
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v2i2.1737

Abstract

Menuangkan informasi melalui media video saat ini sudah sangat biasa digunakan. Video dianggap lebih interaktif dan menarik dalam upaya penyampaian informasi. Dalam dunia pendidikan konten video sudah mulai digunakan, baik oleh guru atau siswa. Penggunaan media video dalam proses pembelajaran diharapkan dapat membuat materi belajar menjadi lebih mudah dan menyenangkan untuk dipahami oleh siswa. Kemampuan siswa multimedia SMK Robbi Rodliya Semarang dalam pemanfaatan teknologi untuk pembuatan video masih kurang maksimal. Selain itu pola pendidikan yang diajarkan selama ini belum mengikuti perkembangan teknologi yang ada. Oleh karena itu, pengabdian ini bertujuan untuk untuk meningkatkan kreatifitas siswa multimedia SMK Robbi Rodliya dalam penggunaan media video untuk mencapai hasil pembelajaran yang maksimal. Dengan pengabdian ini diharapkan mahasiwa dapat menambah wawasan tentang pembuatan video dengan menggunakan software Camtasia. Metode yang digunakan pada kegiatan ini meliputi pendampingan pelatihan pembuatan video menggunakan Camtasia yang terdiri dari empat aktivitas yaitu perencanaan, analisis, implementasi dan evaluasi. Luaran dari pengabdian ini berupa (3) teknologi tepat guna; dan (4) jasa. Hasil pengabdian ini mampu membantu meningkatkan kemampuan siswa multimedia SMK Robbi Rodliya dalam pembuatan video dengan menggunakan software Camtasia. Selain itu dengan adanya pelatihan ini akan sangat membantu para siswa multimedia SMK Robbi Rodliya mengembangkan pembuatan konten digital terutama dalam proses pembelajaran.
STRUCTURAL OPTIMIZATION OF AGRO-INDUSTRIAL HAMMER MILL BLADES BASED ON FINITE ELEMENT SIMULATION AND EXPERIMENTAL VALIDATION Ragil Indrawati; Farika Tono Putri; Wahyu Isti Nugroho; Eni Safriana; Rizkha Ajeng Rochmatika; Haffiyan Faza Rizaldy; Ilham Syaifullah; Mohammad Afiq Haidar; Muhammad Haikal Firmansyah; Aden Suhaedi; Ananda Ihza Indrawan; Arya Ramadhan C. S.; Reza Nur Irsandi
Journal of Economic, Business and Engineering (JEBE) Vol. 7 No. 2 (2026): April
Publisher : Universitas Sains Al Qur'an

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32500/jebe.v7i2.10981

Abstract

Hammer mills are widely used for grinding agroindustrial materials. However, suboptimal blade geometry and sieve selection often lead to excessive stress concentration, premature wear, and uneven particle size distribution. This study aims to optimize hammer mill blade design using the Finite Element Method (FEM) and to validate the best-performing design through experimental tests with sieve diameters of 3 mm, 4 mm, and 5 mm. Three blade designs were numerically analyzed at a rotor speed of 2700 rpm under a cutting force of 31,392 N, evaluating von Mises stress, displacement, strain, and factor of safety. Simulation results indicated that Design 1 exhibited the lowest stress, displacement, and strain, along with the highest factor of safety, demonstrating optimal structural stability and fatigue resistance. Experimental validation revealed that a 4 mm sieve provided the best balance between throughput, energy efficiency, and minimal material loss. The developed hammer mill operated stably with a capacity of 21 kg/h and reliable mechanical performance. The integration of FEM-based optimization and experimental validation offers a robust scientific framework for developing low-cost, high-performance agroindustrial grinding systems, while supporting sustainable production through reduced energy consumption and material waste, in alignment with SDG 2 (Zero Hunger) and SDG 12 (Responsible Consumption and Production). Future research may explore rotor geometry optimization for various feedstocks and the implementation of adaptive speed control to further enhance energy efficiency.
Multipath Channel Analysis at 30 GHz for 6G Wireless Networks Based on BER Performance Reni Dyah Wahyuningrum; Thomas Tri Wibowo; Ida Udlhiya; Rizkha Ajeng Rochmatika; Devi Yesitasari; faizah faizah
Journal of Telecommunication Electronics and Control Engineering (JTECE) Vol 8 No 2 (2026): Journal of Telecommunication, Electronics, and Control Engineering (JTECE) (In Pr
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/jtece.v8i2.2151

Abstract

The development of sixth-generation (6G) wireless networks has encouraged the utilization of millimeter-wave (mmWave) spectrum to support extremely high data rates and network capacity. However, signal propagation at mmWave frequencies is highly susceptible to multipath effects and severe path loss, particularly under Non-Line-of-Sight (NLOS) conditions. This study analyzes the characteristics of a 30 GHz multipath channel using the NYUSIM channel simulator and evaluates its impact on Bit Error Rate (BER) performance. Simulations were conducted in an Urban Microcell (UMi) NLOS scenario with a bandwidth of 400 MHz, employing 64-QAM modulation, Orthogonal Frequency Division Multiplexing (OFDM), and a rate-1/2 Convolutional Code. Channel characterization results indicate a path loss of 127 dB, an average received power of −96.1 dBm, and an RMS delay spread of 14.6 ns. Furthermore, the Angle of Arrival (AOA) and Angle of Departure (AOD) analyses reveal that signal propagation is dominated by reflected paths due to the absence of a direct Line-of-Sight (LOS) component. BER performance evaluation shows that increasing the Signal-to-Noise Ratio (SNR) from 0 dB to 14 dB reduces the BER from approximately 4.8 × 10⁻¹ to 9 × 10⁻³. At an SNR of 16 dB, the system achieves a BER below 10⁻³, indicating a substantial improvement in transmission reliability. The results demonstrate that the combination of OFDM and Convolutional Coding effectively mitigates the effects of multipath fading in mmWave channels, making it a promising solution for future 6G wireless communication systems operating at 30 GHz.
Co-Authors Aden Suhaedi Afandi Nur Aziz Thohari Aggie Brenda Vernandez Ananda Ihza Indrawan Angga Wahyu Wibowo Arya Ramadhan C. S. Devi Yesitasari faizah faizah Farika Tono Putri Haffiyan Faza Rizaldy Hutama Arif Bramantyo Ida Udlhiya Ilham Syaifullah Kuwat Santoso Mohammad Afiq Haidar Muhammad Haikal Firmansyah Muttabik Fathul Lathief Nurseno Bayu Aji Ragil Indrawati Reni Dyah Wahyuningrum Reza Nur Irsandi Safriana, Eni Thomas Tri Wibowo Vinda Setya Kartika Wahyu Isti Nugroho