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All Journal JKKP (Jurnal Kesejahteraan Keluarga dan Pendidikan) Indonesian Journal of Maritime Technology or abbreviated (ISMATECH) Journal Of Renewable Energy Engineering
Abdurrahman, Naufal
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Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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RANCANG BANGUN SISTEM MONITORING STASIUN PENGISIAN LISTRIK UMUM (SPLU) HYBRID BERBASIS IOT DI SMKN 2 KOTA BEKASI Abdurrahman, Naufal; Jaenul, Ariep; Vresdian, Devan Junesco
Journal Of Renewable Energy Engineering Vol. 2 No. 1 (2024): Journal Of Renewable Energy Engineering (April)
Publisher : Program Vokasi-Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56190/jree.v2i1.27

Abstract

  This research is motivated by the development of electric vehicles in Indonesia which is regulated in Presidential Regulation Number 55 of 2019 which encourages the use of electric vehicles. Therefore, the development of electric vehicles began to increase every year. Along with the development of electric vehicles, it must also be followed by the development of charging stations. This research focuses more on developing a Hybrid public electric charging station (SPLU) monitoring system to create a Hybrid SPLU monitoring system that can be accessed easily anytime and anywhere in real-time and is IoT-based. For the Hybrid SPLU monitoring system to work well, the data results from sensor readings can be monitored in real-time and IoT-based. Then the data from this study has been compared (calibration) with existing measuring instruments with the average error of each sensor being no more than 5% and the Mean Absolute Percentage Error (MAPE) not more than 10%. From the existing provisions, if the MAPE value is <10%, the data can be said to be very accurate. So it can be concluded that this research can be said to be successful because it has fulfilled the initial objectives of this research.
HUBUNGAN INTENSITAS PENGGUNAAN MEDIA SOSIAL TIKTOK DAN PERILAKU KONSUMTIF REMAJA Abdurrahman, Naufal; Doriza, Shinta; Oktaviani, Maya
JKKP (Jurnal Kesejahteraan Keluarga dan Pendidikan) Vol. 11 No. 02 (2024): JKKP (Jurnal Kesejahteraan Keluarga dan Pendidikan)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKKP.112.09

Abstract

Abstrak Penelitian ini bertujuan untuk mengetahui hubungan antara intensitas penggunaan media sosial TikTok dengan perilaku konsumtif pada remaja. Perkembangan teknologi yang pesat telah mendorong perubahan perilaku sosial, termasuk kebiasaan berbelanja secara daring melalui media sosial. TikTok kini tidak hanya menjadi platform hiburan, tetapi juga wadah promosi dan transaksi yang mendorong perilaku konsumtif di kalangan remaja. Penelitian ini menggunakan pendekatan kuantitatif dengan metode survei korelasional. Populasi penelitian adalah remaja berusia 17–22 tahun dengan jumlah sampel sebanyak 84 responden, terdiri dari 62 perempuan dan 22 laki-laki, yang dipilih melalui teknik purposive sampling. Instrumen penelitian meliputi skala intensitas penggunaan media sosial TikTok (23 item) dan skala perilaku konsumtif remaja (33 item). Analisis data menggunakan uji korelasi Pearson Product Moment menunjukkan hasil r = 0,572 dengan p = 0,000 (p < 0,05), yang berarti terdapat hubungan positif dan signifikan antara intensitas penggunaan media sosial TikTok dengan perilaku konsumtif remaja, dengan keeratan hubungan dalam tingkat sedang. Hasil ini mengindikasikan bahwa semakin tinggi frekuensi penggunaan TikTok, semakin besar pula kecenderungan remaja untuk berperilaku konsumtif. Implikasi dari penelitian ini menekankan pentingnya literasi digital dan kontrol diri agar remaja dapat menggunakan media sosial secara bijak dan tidak terjebak dalam perilaku konsumtif yang berlebihan. Abstract This study aims to determine the relationship between the intensity of TikTok social media use and adolescent consumer behavior. Rapid technological developments have driven changes in social behavior, including online shopping habits through social media. TikTok is now an entertainment platform and a promotional and transaction platform that encourages consumer behavior among adolescents. This study used a quantitative approach with a correlational survey method. The study population was adolescents aged 17–22 with a sample of 84 respondents, 62 females and 22 males, selected through a purposive sampling technique. The research instruments included a scale of TikTok social media use intensity (23 items) and a scale of adolescent consumer behavior (33 items). Data analysis using the Pearson Product-Moment correlation test showed a result of r = 0.572 with p = 0.000 (p < 0.05), which means there is a positive and significant relationship between the intensity of TikTok social media use and adolescent consumer behavior, with a moderate level of closeness. These results indicate that the higher the frequency of TikTok use, the greater the tendency of adolescents to behave in a consumer manner. The implications of this study emphasize the importance of digital literacy and self-control so that teenagers can use social media wisely and not get caught up in excessive consumer behavior.
Evaluation of Longitudinal Strength of a Cargo Barge Based on Shear Force and Still Water Bending Moment under Various Loading Conditions Santoso, Budhi; Romadhoni, Romadhoni; Jamal, Jamal; Nusyirwan, Deny; Abdurrahman, Naufal; Ariany, Zulfaidah
Indonesian Journal of Maritime Technology Vol. 4 No. 1 (2026): Volume 4 Issue 1, June 2026
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v4i1.8481958

Abstract

Longitudinal strength is a fundamental aspect of barge structural safety because variations in loading magnitude and load position may significantly affect the global hull girder response. This study evaluates the longitudinal strength of a cargo barge based on shear force and still water bending moment under several loading conditions, with reference to the applicable BKI Rules for longitudinal strength assessment. The object of the study is a cargo barge with principal dimensions of 330 ft × 90 ft × 21 ft and a lightship weight of 1802.9 metric tons. Six loading conditions were investigated, namely lightship, fully loaded, partially loaded at 50% with homogeneously distributed cargo, and three crane-shift positions at the aft, midship, and fore sections. The net load distribution was obtained from the difference between distributed weight and buoyancy, and then integrated to determine the shear force and still water bending moment along the hull. The results show that the fully loaded condition produced the most critical structural response, with a maximum shear force of 0.385 × 10³ metric tons at Frame 50 and a maximum still water bending moment of -6.212 × 10³ metric ton·m at Frame 35, indicating a dominant sagging condition. The governing case reached only 32.49% of the allowable shear force and 33.58% of the allowable still water bending moment, confirming a substantial safety margin. The crane-shift analysis further demonstrates that movable concentrated loads can shift critical internal force locations, which may be overlooked in standard cargo distribution analysis. All evaluated loading conditions remained below the permissible limits, indicating that the barge is structurally acceptable under the investigated still-water loading scenarios.
Co-Authors Ariep Jaenul Budhi Santoso Jamal Jamal Oktaviani, Maya Romadhoni Romadhoni, Romadhoni shinta doriza Vresdian, Devan Junesco Zulfaidah Ariany