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All Journal Majalah Ilmiah MOMENTUM Journal of Mechanical Engineering Science and Technology JURNAL PENDIDIKAN TAMBUSAI Tsaqofah: Jurnal Penelitian Guru Indonesia
Hanifudin, Muhamad
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Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Konsep Perkembangan Peserta Didik dan Hukum-hukum Perkembangan Habsy, Bakhrudin All; Khairunnisa, Khairunnisa; Jannah, Ilda Miftakhul; Hanifudin, Muhamad
TSAQOFAH Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/tsaqofah.v4i1.2137

Abstract

The development of students' interests and talents as well as character education can be influenced by several factors, namely factors that influence children's development and factors that hinder children's development. There are several laws of individual development, namely the cephalocaudal law, the proximodistal law, the law of developmental rhythm, the law of convergence, the law of recapitulation, the law of survival and self-development, and the law of development tempo. The aim of this research is to determine student development and the laws of development and to make it easier for students to develop their own potential. The method used is qualitative with literature study. Through the results of the literature study, it can be concluded that there are several factors that are very important in supporting the development of students, one of which is the nature and environmental factors that influence the development of each child's personal potential and talent interests. 7 stages of development in humans, there are 3 factors that influence child development proposed by Schopenhauer, John Locke, and Wilian Stern. There are inhibiting factors that influence children's development and the laws of development in children.
Pengaruh Tipe Prototype Sepeda Motor Terhadap Coefficient Drag dan Lift Pada Open Circuit Wind Tunnel Nurul Aini, Achmad Ma'sum; Hanifudin, Muhamad; Perdana, Dony
JURNAL ILMIAH MOMENTUM Vol 20, No 2 (2024): Vol 20, No 2
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/jim.v20i2.11190

Abstract

Penelitian ini dilakukan untuk mengetahui  coefisien drag dan  lift dengan variasi kecepatan dan benda uji prototype sepeda motor. Dalam mendesain sebuah kendaraan sangat penting untuk memperhatikan sisi aerodinamika. Seiring berjalanya waktu, besarnya hambatan angin yang tercipta juga disesuaikan dengan jenis sebuah kendaraan yang dirancang. Dalan dunia desain dan produksi kendaraan saat ini terutama sepeda motor, pengujian coefisien hambatan menjadi salah satu hal penting yang harus dilakukan oleh industri. Penelitian ini menggunakan open circuit wind tunnel  dimana prototype  yang diuji sepeda motor  scooter, trail, dan sport ditempatkankan dibagian  test section dengan dialiri variasi kecepatan 10 m/s, 12.5 m/s, dan 15 m/s. Hasil dari penelitian menunjukan coefisien drag dan lift dengan kecepatan 15m/s pada sepeda motor scooter dengan nilai 0.534 dan 0,586, sport 0.174 dan 0.485, dan trail 0.349 dan 0.449. Nilai coefisien drag dan lift yang tertinggi terjadi pada prototype scooter.
Jejak Leluhur, Langkah Masa Kini: Transformasi Budaya Masyarakat Bromo di Era Global Rahmawati, Maria Yustiana; Habibah, Noviana; Wiyono, Rima Faradillah Wati Firdaus; Hanifudin, Muhamad; Purnama, Ivan Fadillah Putra; Khusumadewi, Ari
Jurnal Pendidikan Tambusai Vol. 9 No. 2 (2025): Agustus
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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Abstract

Masyarakat Bromo, dengan warisan leluhur yang kaya dan praktik budaya unik, menghadapi dinamika globalisasi yang menghadirkan tantangan sekaligus peluang. Studi literatur ini bertujuan untuk menganalisis secara mendalam jejak-jejak tradisi dan nilai budaya masyarakat Bromo, serta mengidentifikasi bagaimana proses transformasi budaya terjadi seiring dengan derasnya arus globalisasi. Melalui penelusuran berbagai sumber pustaka relevan, penelitian ini mengeksplorasi adaptasi, resistensi, dan inovasi budaya yang dilakukan oleh masyarakat Bromo dalam mempertahankan identitas mereka di tengah perubahan zaman. Temuan studi ini diharapkan dapat memberikan wawasan komprehensif mengenai kompleksitas interaksi antara warisan budaya lokal dan pengaruh global, serta implikasinya terhadap keberlanjutan budaya masyarakat Bromo di masa depan.
Investigation of Drag Force and Downforce on Two Racing Motorcycles in Slipstream Conditions Hanifudin, Muhamad; Jatisukamto, Gaguk; Darsin, Mahros; Kustanto, Muh. Nurkoyim; Saleh, Azmi; Prasetyono, Suprihadi; Sarwono, Catur Suko
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 9, No 1 (2025)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v9i12025052

Abstract

The performance of modern racing motorcycles is greatly influenced by their aerodynamics. Slipstreaming occurs during a race when a rider closely follows another, especially on a straight track. The effect can reduce aerodynamic drag and increase the overall speed of the rider behind. This study investigates the aerodynamic effects of slipstreaming on a racing motorcycle using computational fluid dynamics. This study also considers its effect on both drag force and downforce, which affects motorcycle stability. A 3D CAD model of a racing motorcycle and a rider in a crouching position was used as the object of research. CFD simulations were carried out using the RANS Steady State solver with the k-ω-SST turbulence model. The simulations evaluated the effect of varying distances between motorcycles on slipstream performance, as well as varying motorcycle speeds. The results show the effect on drag force and downforce for the trailing motorcycle. This is due to the shielding effect of the motorcycle in front, which creates a low-pressure zone behind it. Additionally, the turbulence behind the racing motorcycle also affects its downforce. Optimizing the distance between motorcycles in the slipstream allows riders to improve overtaking performance. It also reduces adverse effects on motorcycle stability caused by the slipstream's influence on downforce. Furthermore, it can be used to develop aerodynamic modifications to racing motorcycles that can utilize the slipstream more effectively.
Co-Authors Ari Khusumadewi Azmi Saleh Bakhrudin All Habsy, Bakhrudin All Catur Suko Sarwono Dony Perdana Gaguk Jatisukamto Habibah, Noviana Jannah, Ilda Miftakhul Khairunnisa Khairunnisa Kustanto, Muh. Nurkoyim Mahros Darsin Nurul Aini, Achmad Ma'sum Purnama, Ivan Fadillah Putra Rahmawati, Maria Yustiana Suprihadi Wiyono, Rima Faradillah Wati Firdaus