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All Journal Jurnal Inspirasi Pendidikan IJIE (Indonesian Journal of Informatics Education) JPTE: Jurnal Pendidikan Teknik Elektro Vocational : Jurnal Inovasi Pendidikan Kejuruan Jurnal Edunitro
Viverdy Memah
Teknik Listrik Fakultas Teknik Universitas Negeri Manado
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Other

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Pengaruh Penggunaan Smartphone terhadap Hasil Belajar Siswa SMK Kalalo, Bryan; Memah, Viverdy; Mamahit, Calvin
JURNAL EDUNITRO Jurnal Pendidikan Teknik Elektro Vol. 6 No. 1 (2026): April Issue
Publisher : Department of Electrical Engineering Education, Faculty of Engineering, State University of Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/eg02zm26

Abstract

Abstrak— Penelitian ini bertujuan untuk menguji pengaruh penggunaan smartphone terhadap hasil belajar siswa pada mata pelajaran Dasar Listrik dan Elektronika di SMK Negeri 3 Tondano, dengan mempertimbangkan peran kontrol diri serta kategori penggunaan (akademik vs non-akademik). Latar belakang penelitian didasarkan pada fenomena meluasnya penggunaan smartphone di kalangan siswa SMK yang di satu sisi mendukung pembelajaran, namun di sisi lain berpotensi menjadi distraksi. Penelitian menggunakan pendekatan kuantitatif dengan desain ex post facto pada 100 siswa kelas X program keahlian Teknik Instalasi Tenaga Listrik (TITL) yang dipilih melalui proportional random sampling. Data diperoleh melalui kuesioner penggunaan smartphone, skala kontrol diri, serta dokumentasi nilai hasil belajar, dan dianalisis dengan regresi berganda, uji moderasi, dan mediasi. Hasil penelitian menunjukkan bahwa penggunaan smartphone berpengaruh negatif signifikan terhadap hasil belajar (β = –0,34; p < 0,05), dengan kontribusi sebesar 11,6% (R² = 0,116). Kontrol diri terbukti memoderasi hubungan ini (β = 0,19; p < 0,05), sehingga siswa dengan kontrol diri tinggi lebih mampu menekan dampak negatif penggunaan smartphone. Analisis mediasi menemukan bahwa penggunaan non-akademik menjadi mediator signifikan yang memperkuat efek negatif (β = –0,42; p < 0,01), sedangkan penggunaan akademik tidak menunjukkan pengaruh positif signifikan (β = 0,18; p > 0,05). Faktor demografis yang berpengaruh hanya latar belakang ekonomi (p < 0,05), sementara jenis kelamin dan lama kepemilikan smartphone tidak signifikan. Implikasi penelitian ini menegaskan bahwa smartphone bersifat ambivalen: dapat merugikan hasil belajar jika digunakan untuk kepentingan non-akademik, tetapi berpotensi mendukung pembelajaran jika diarahkan secara tepat.
ANALISIS HARMONISA ARUS DAN TEGANGAN DARI VARIABEL SPEED DRIVE (VSD) TERHADAP PROFIL TEGANGAN DI JARINGAN DISTRIBUSI PT. PLN ULP TOMOHON MELALUI STUDI SIMULASI SOFTWARE ETAP Taroreh, Novitri; Ticoh, Janne Deivy; Memah, Viverdy; Seke, Fransiskus; Ridwan, Ridwan; Rapar, Jocke
VOCATIONAL: Jurnal Inovasi Pendidikan Kejuruan Vol. 6 No. 2 (2026)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/vocational.v6i2.10111

Abstract

Power quality is a critical factor in maintaining the reliability and efficiency of modern power systems, particularly in distribution networks that extensively utilize power electronic equipment. One of the primary sources of harmonic distortion is the use of Variable Speed Drives (VSDs), which operate as non-linear loads and cause current and voltage waveforms to deviate from their ideal sinusoidal shape. This study aims to analyze the harmonic characteristics generated by VSDs in the distribution system of PT. PLN ULP Tomohon, determine the levels of Total Harmonic Distortion of current (THD-I) and voltage (THD-V), and evaluate the effectiveness of harmonic mitigation using a passive single-tuned harmonic filter. The research employs a descriptive quantitative approach through modeling and simulation of the power system using the Electrical Transient Analyzer Program (ETAP) software. Technical system data, including transformer capacity, distribution network configuration, and load parameters, are modeled in the form of a Single Line Diagram (SLD) and analyzed using the Harmonic Load Flow module. The simulation results indicate that VSD operation produces dominant harmonics at the 5th and 7th orders, which significantly increase the THD levels within the system. The implementation of a passive single-tuned harmonic filter is shown to effectively reduce harmonic distortion, allowing the THD-I and THD-V values to approach or comply with the limits specified in the IEEE 519-2014 standard. Therefore, the application of appropriate harmonic mitigation methods can improve power quality, enhance energy efficiency, and increase the reliability of electrical power systems in distribution networks.
7E Learning Cycle Based Interactive Learning Media as Alternative Teaching Material in Vocational High Schools Mahendra, I Gede Budi; Rapar, Jocke Jonathan; Killis, Billy; Memah, Viverdy
IJIE (Indonesian Journal of Informatics Education) Vol 8, No 1 (2024): IJIE (Indonesian Journal of Informatics Education) - July
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/ijie.v8i1.88049

Abstract

A high-quality learning process is crucial for enhancing the competitiveness of graduates in the professional world. Teaching materials such as Interactive Learning Media have an important role in enabling students to gain knowledge and be actively involved in learning activities. The objective of this study is to develop, evaluate the feasibility, and determine the impact of implementing 7E Learning Cycle Based Interactive Learning Media. This research followed the R&D approach using the ADDIE model. The research subjects included 2 material experts, 2 media experts, 2 language experts, 36 XI TITL students, and 2 subject teachers determined by purposive sampling. The research instrument uses interview guidelines, questionnaire sheets and test questions. Data collection was conducted through interviews, questionnaires and tests. The research findings indicate that 7E Learning Cycle Based Interactive Learning Media is very valid, with a validity level of 85% according to media experts, 79% according to subject matter experts, and 79% according to language experts. The practicality test yielded results of 82% for students and 87% for teachers, falling under the category of "very practical." The evaluation results demonstrated an average score increase of 6.29. It is recommended that students utilize the 7E Learning Cycle Based Interactive Learning Media to facilitate meaningful learning experiences, foster critical thinking skills, promote independence, and enhance conceptual understanding of the subject matter. Furthermore, subject teachers are encouraged to utilize the outcomes of this Interactive Learning Media Development as a framework for developing teaching materials on other topics.
Co-Authors Altje Wajong Benyamin Tampang Billy M.H. Kilis Dako, Rahmat Detu, Hamid Doni Yesemo Hamid Detu Harrychoon Angmalisang Herry Sumual Hizkia Marfel Mokalu I Gede Budi Mahendra Janne Ticoh Jimmy Waworuntu Jocke Rapar Kalalo, Bryan Kamagi, Waraney Kambey, Moudy Killis, Billy Mahendra, I Gede Budi Maickel Tuegeh Olii, Djamii Rapar, Jocke Rapar, Jocke Jonathan Rian Rorimpandey Ridwan, Ridwan Rompas, Gabriel Rorimpandey, Rian Sanger, Ruddy Seke, Fransiskus Royke Tampang, Benyamin Taroreh, Novitri Ticoh, J D Ticoh, Janne Deivy Wajong, Altje Waraney Kamagi Wungow, David Yesemo, Doni