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Comparative Study of Biggest Log Modulus and Direct Synthesis Tuning Methods for Multiloop PI Controllers in a Distillation System Mukhlishien; Azwar; Hisbullah
Jurnal Serambi Engineering Vol. 11 No. 2 (2026): April 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Most chemical processes exhibit multivariable characteristics with complex interactions between control loops; therefore, this study evaluates the performance of the Biggest Log Modulus (BLT) and Direct Synthesis (DS) tuning methods on multiloop Proportional-Integral (PI) controllers within a binary distillation system to determine optimal tuning parameters. Through simulations of the set point tracking scenario (Y1), the DS method proved superior, yielding an Integral Absolute Error (IAE) of 10.32 (compared to 37.18 for BLT) and settling times of 119 seconds for Y1 and 111 seconds for Y2. Similarly, in disturbance rejection, the DS method demonstrated a more responsive performance with an IAE of 3.392 and settling times of 71 seconds for Y1 and 52 seconds for Y2, confirming that fine-tuning techniques are crucial for minimizing overshoot and maintaining overall system stability. The advantage of the DS method in dampening oscillations provides higher operational certainty for distillation columns, which are highly sensitive to thermal fluctuations and sudden changes in feed composition. Implementing precise parameters through this approach is expected to reduce operational costs resulting from energy waste during control transitions. The results of this research provide a significant contribution to the development of adaptive control strategies in the dynamic chemical process industry in selecting the most effective tuning method to achieve maximum efficiency, workplace safety, and optimal long-term operational stability.
Pendampingan Guru RA dalam Membuat Media Pembelajaran dengan CANVA di Kabupaten Sambas Saripah; Suhari; Novi Cahya Dewi; Azwar
SAMBARA: Jurnal Pengabdian Kepada Masyarakat Vol 4 No 2 (2026): Mei
Publisher : CV Putra Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58540/sambarapkm.v4i2.1529

Abstract

Penelitian ini dilatarbelakangi oleh masih terbatasnya kemampuan guru Raudhatul Athfal (RA) dalam memanfaatkan teknologi digital sebagai media pembelajaran yang menarik dan interaktif. Sejalan dengan hal tersebut, penelitian ini bertujuan untuk meningkatkan kompetensi guru RA dalam membuat media pembelajaran menggunakan aplikasi Canva di Kabupaten Sambas. Metode yang digunakan adalah pendekatan partisipatif melalui kegiatan pelatihan, praktik langsung, dan evaluasi hasil karya. Subjek penelitian ini adalah 25 guru RA yang berasal dari beberapa lembaga pendidikan di Kabupaten Sambas. Teknik pengumpulan data dilakukan melalui observasi, wawancara, dan dokumentasi, sedangkan teknik analisis data menggunakan analisis deskriptif kualitatif dengan tahapan reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan adanya peningkatan yang signifikan dalam kemampuan guru dalam merancang media pembelajaran yang kreatif, menarik, dan sesuai dengan karakteristik anak usia dini. Selain itu, guru juga menunjukkan peningkatan kepercayaan diri dalam mengintegrasikan teknologi digital ke dalam proses pembelajaran. Pelatihan yang diberikan mampu memberikan pengalaman langsung kepada guru dalam mengembangkan media berbasis Canva secara mandiri. Dengan demikian, dapat disimpulkan bahwa pelatihan pembuatan media pembelajaran menggunakan Canva efektif dalam meningkatkan kompetensi digital guru RA serta mendorong inovasi pembelajaran di kelas.
Perlindungan Hak Rehabilitasi Bagi Pemakai, Korban Penyalahguna dan Pecandu Narkoba Dari Jeratan Hukum Pidana Azwar
Jurnal Sosial dan Humaniora Vol. 2 No. 02 (2025): SAKAAI : Jurnal Sosial dan Humaniora
Publisher : AAI Pengda Riau

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Abstract

Law enforcement against Drug Users, Victims of Drug Abuse and Drug Addicts is regulated in Law No. 35 of 2009 concerning Narcotics, which adopts two justice systems: rehabilitation justice and criminal justice. In efforts to combat drug abuse, the rehabilitation justice system is often neglected by law enforcement officials in Indonesia. Examining several articles in the Drug Law, there is synergy to create a different handling system for Drug Abusers, Victims, and Addicts. Articles 54 and 103 focus more on rehabilitation, while Article 127 provides criminal penalties but also opens up opportunities for rehabilitation for victims. According to normative legal theory, drug addicts are actually victims who suffer from illness and require physical and psychological treatment, as well as support from the community, in order to live a normal life again. Implementing prison sentences alone is not sufficient in accordance with the perspective of Law Number 35 of 2009 concerning Narcotics, which provides the right to rehabilitation for users, addicts, and victims of drug abuse, both voluntarily and through a judge's decision. However, the implementation of the right to rehabilitation for drug users in Indonesia has not reached an optimal level due to several obstacles, both internal and external. Law Number 35 of 2009, not only to provide a deterrent effect to perpetrators or prevent others from committing the same act, but also to ensure that perpetrators receive treatment, so they can return to society in a better condition.