Article Per Year (5 Year)
p-Index From 2020 - 2025
0.23
P-Index
This Author published in this journals
All Journal Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) Jurnal Rekayasa Mesin Jurnal Pengabdian West Science Jurnal Rekayasa Mesin Signal and Image Processing Letters
RAMADAN, RIZKY
Unknown Affiliation
Aerospace Engineering Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Other

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
RANCANG BANGUN MODIFIKASI HYDRAULIC JACK MANUAL MENJADI ELECTRIC RAMADAN, RIZKY; PRIJO BUDIJONO, AGUNG
Jurnal Rekayasa Mesin Vol 4, No 03 (2018): JRM. Volume 04 Nomor 03 Tahun 2018
Publisher : Jurnal Rekayasa Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Dongkrak Hidrolik (Hydraulic Jack) merupakan alat bantu angkat untuk benda yang berat. Namun Hydraulic Jack tidak hanya memiliki fungsi sebagai alat pengangkat untuk kendaraan, tetapi bisa difungsikan sebagai alat bantu angkat dan tekan untuk mesin Press Sepatu. Prinsip kerja Hydraulic Jack adalah tekanan yang dilakukan di dalam zat cair yang tertutup diteruskan ke setiap bagian dari zat cair dan dinding tempat fluida tanpa mengalami perubahan harga. Hydraulic Jack saat ini masih menggunakan prinsip kerja manual menggunakan bantuan tenaga tangan manusia untuk memompa dan menaikkannya ke atas. Tentu saja hal ini kurang efektif karna menggunakan Hydraulic Jack manual membutuhkan tenaga yang cukup besar. Cara kerja Hydraulic Jack Electric adalah arus listrik mengaliri tombol saklar, jika saklar dinyalakan maka Motor Wiper akan bekerja untuk mengangkat dongkrak keatas. Dongkrak naik keatas dan pada ketinggian tertentu akan menyentuh limit switch, kemudian limit switch akan menyalakan timer. Saat itu timer menyala pada waktu yang sudah ditentukan. ketika waktu yang ditentukan sudah habis, maka bell akan menyala dan berbunyi. Kemudian proses pengobosan dongkrak dilakuakan secara manual dengan memutar baut pengobosnya. Dongkrak turun sehingga tidak mnyentuh limit switch, maka mesin akan otomatis berhenti. Dari hasil Perancangan dan Modifikasi Hydraulic manual menjadi Hydraulic Jack Electric, maka didapatkan spesifikasi mesin menggunakan motor DC 24 Volt dengan Kecepatan putar motor mencapai 60-70 Rpm. Maksimal beban pada Modifikasi Hydraulic Jack Electric ini mencapai beban 150 kg dengan kecepatan angkat tanpa beban mencapai kecepatan 0.03 mm/detik. Torsi yang yang dikeluarkan dari alat ini mencapai 1.764 N.m. Kata kunci : Rancang Bangun, Hydraulic Jack Electric, Mesin Press Sepatu. Abstract Hydraulic Jack is a lifting tool for heavy objects. However Hydraulic Jack not only has the function as a lifter for the vehicle, but can be used as a lifting tool and press for Shoe Press machine. The working principle of Hydraulic Jack is the pressure applied in the closed liquid which is passed to each part of the liquid and the wall in which the fluid is subjected without any change of price. Hydraulic Jack is still using the manual working principle using the help of human hands to pump and raise it up. Of course this is less effective because using the manual Hydraulic Jack requires considerable energy. How Hydraulic Jack Electric works is the electric current flows the switch, if the switch is turned on then the Wiper Motor will work to lift the jack upwards. The jack goes up and at a certain height will touch the limit of the switch, then the switch limit will start the timer. At that time the timer lights up at a predetermined time. when the specified time is up, then the bell will turn on and sound. Then the process of breaking the jack dilakuakan manually by rotating bolt pengobosnya. Dongkrak down so it does not touch the limit switch, then the machine will automatically stop. From the results of Design and Modification Hydraulic manual to Hydraulic Jack Electric, the engine specifications obtained using a 24 Volt DC motor with motor rotation speeds reach 60-70 Rpm. Maximum load on this Electric Jack Hydraulic Modification reaches 150 kg loads with no-load lift speeds of 0.03 mm / s. The torque removed from the device reaches 1,764 N.m. Keywords : Design, Hydraulic Jack Electric, Press Machine shoes.
PENGARUH MOTIVASI BERPRESTASI TERHADAP HASIL BELAJAR SISWA KELAS X DI SMAN 06 PONTIANAK TIMUR Ramadan, Rizky; Herkulana, Herkulana; Genjik, Bambang
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 8, No 11 (2019): Nopember 2019
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (474.859 KB)

Abstract

 AbstractThe title of this reasearch “"The Effect of Achievement Motivation on Student Learning Outcomes at SMAN 06 East Pontianak". Learning outcomes have a very important position in achieving learning objectives. Achievement of learning outcomes can not be separated from the learning process of students. Student learning outcomes are high, showing success in learning and learning activities. Conversely, if the results achieved are low, the learning objectives have not been achieved. The results of research that researchers have done, namely in the process of teaching and learning activities showed 58.25% of respondents stated very good, 37.86% of respondents said good, 2.91% of respondents said it was good enough, and 0.97% said it was not good. It can be interpreted that the achievement motivation in SMAN 06 Pontianak is included in the very good category. Based on research conducted by researchers that the equation Y = 10,418 + 1,247X, this means that every increase in achievement motivation (X) is 1 (one), the learning outcomes (Y) will increase by 1,247. Because tcount> ttable (18,035> 1,983) Ha is accepted and Ho is rejected or "There is an influence of achievement motivation on student learning outcomes at SMA Negeri 6 Pontianak".keywords: learning outcomes, learning motivation, economic subjects
RANCANG BANGUN MODIFIKASI HYDRAULIC JACK MANUAL MENJADI ELECTRIC RAMADAN, RIZKY; PRIJO BUDIJONO, AGUNG
Jurnal Rekayasa Mesin Vol 4 No 03 (2018): JRM. Volume 04 Nomor 03 Tahun 2018
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v4i03.23947

Abstract

Dongkrak Hidrolik (Hydraulic Jack) merupakan alat bantu angkat untuk benda yang berat. Namun Hydraulic Jack tidak hanya memiliki fungsi sebagai alat pengangkat untuk kendaraan, tetapi bisa difungsikan sebagai alat bantu angkat dan tekan untuk mesin Press Sepatu. Prinsip kerja Hydraulic Jack adalah tekanan yang dilakukan di dalam zat cair yang tertutup diteruskan ke setiap bagian dari zat cair dan dinding tempat fluida tanpa mengalami perubahan harga. Hydraulic Jack saat ini masih menggunakan prinsip kerja manual menggunakan bantuan tenaga tangan manusia untuk memompa dan menaikkannya ke atas. Tentu saja hal ini kurang efektif karna menggunakan Hydraulic Jack manual membutuhkan tenaga yang cukup besar. Cara kerja Hydraulic Jack Electric adalah arus listrik mengaliri tombol saklar, jika saklar dinyalakan maka Motor Wiper akan bekerja untuk mengangkat dongkrak keatas. Dongkrak naik keatas dan pada ketinggian tertentu akan menyentuh limit switch, kemudian limit switch akan menyalakan timer. Saat itu timer menyala pada waktu yang sudah ditentukan. ketika waktu yang ditentukan sudah habis, maka bell akan menyala dan berbunyi. Kemudian proses pengobosan dongkrak dilakuakan secara manual dengan memutar baut pengobosnya. Dongkrak turun sehingga tidak mnyentuh limit switch, maka mesin akan otomatis berhenti. Dari hasil Perancangan dan Modifikasi Hydraulic manual menjadi Hydraulic Jack Electric, maka didapatkan spesifikasi mesin menggunakan motor DC 24 Volt dengan Kecepatan putar motor mencapai 60-70 Rpm. Maksimal beban pada Modifikasi Hydraulic Jack Electric ini mencapai beban 150 kg dengan kecepatan angkat tanpa beban mencapai kecepatan 0.03 mm/detik. Torsi yang yang dikeluarkan dari alat ini mencapai 1.764 N.m. Kata kunci : Rancang Bangun, Hydraulic Jack Electric, Mesin Press Sepatu. Abstract Hydraulic Jack is a lifting tool for heavy objects. However Hydraulic Jack not only has the function as a lifter for the vehicle, but can be used as a lifting tool and press for Shoe Press machine. The working principle of Hydraulic Jack is the pressure applied in the closed liquid which is passed to each part of the liquid and the wall in which the fluid is subjected without any change of price. Hydraulic Jack is still using the manual working principle using the help of human hands to pump and raise it up. Of course this is less effective because using the manual Hydraulic Jack requires considerable energy. How Hydraulic Jack Electric works is the electric current flows the switch, if the switch is turned on then the Wiper Motor will work to lift the jack upwards. The jack goes up and at a certain height will touch the limit of the switch, then the switch limit will start the timer. At that time the timer lights up at a predetermined time. when the specified time is up, then the bell will turn on and sound. Then the process of breaking the jack dilakuakan manually by rotating bolt pengobosnya. Dongkrak down so it does not touch the limit switch, then the machine will automatically stop. From the results of Design and Modification Hydraulic manual to Hydraulic Jack Electric, the engine specifications obtained using a 24 Volt DC motor with motor rotation speeds reach 60-70 Rpm. Maximum load on this Electric Jack Hydraulic Modification reaches 150 kg loads with no-load lift speeds of 0.03 mm / s. The torque removed from the device reaches 1,764 N.m. Keywords : Design, Hydraulic Jack Electric, Press Machine shoes.
Classification of concentration or focus by signal Electroencephalography (EEG) and addiction Watching K-Dramas Using Algoritma K-Nearest Neighbor Azhari, Ahmad; Ramadan, Rizky
Signal and Image Processing Letters Vol 1, No 3 (2019)
Publisher : Association for Scientific Computing Electrical and Engineering (ASCEE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/simple.v1i3.26

Abstract

K-drama or drakor is currently being enjoyed in Indonesia when the Covid-19 pandemic hits, especially by the fair sex. From the sources obtained, the number of k-dramas or dramas also increased during the covid-19 pandemic from the previous 2.7 hours a day to 4.6 hours a day. The issue raised by the authors in this study is whether the impressions of drakor will later affect the concentration of an individual. Data acquisition was carried out using the NeuroSky Mindwave Mobile 2 tool to retrieve EEG data.  After the data acquisition is completed, the next process is preprocessing, which is to perform feature extraction using the Fast Furious Transform method to find the average values of the highest and lowest peaks. After the preprocessing is completed go to the classification stage. The classification used is K-Nearest Neighbor with a value of k=9.  For evaluation using confusion matrix to determine the accuracy value of the built KNN model. This study used 100 respondents who were37 people who were addicted to drakor. A total of 24 people out of the 37 or about 64.87% turned out to have a lack of concentration level when taking concentration tests. This is enough to prove that drama impressions can reduce the concentration or focus of a person, especially women. For the classification process to have an accuracy of 80% and for variable correlation testing, it turns out that independent variables do have a simultaneous effect on the dependent variables with a calculated f value of 35.642 and a sig value of 0.000b.
Optimalisasi Desa Yang Sehat, Berdaya, dan Cerdas Berkelanjutan Yuniar, Zahra Dinda; Aziz, Faisal Abdul; Alhikam, Akram; Ramadan, Rizky; Febry R, Thiana Choerunnissa; Sidik, Arul Maulana; Andriani K, Shiva; Ruhiyati, Suci Nur; Fadhilah, Nurhidayah K
Jurnal Pengabdian West Science Vol 3 No 09 (2024): Jurnal Pengabdian West Science
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/jpws.v3i09.1638

Abstract

Program Kuliah Kerja Nyata (KKN) merupakan salah satu wujud dari Tri Dharma Perguruan Tinggi. Melalui kegiatan pengabdian kepada masyarakat di Cimaja, terbentuk hubungan yang erat antara dunia pendidikan juga upaya meningkatkan kesejahteraan masyarakat. Tujuan pengabdian ini adalah pengoptimalisasian UMKM dalam hal branding dan pemasaran, termasuk UMKM yang terletak di Desa Cimaja maupun UMKM wisata, penyuluhan penanggulangan pra-stunting dan stunting, serta melakukan pendampingan belajar mengajar untuk meningkatkan minat dan motivasi belajar. Kegiatan dilaksanakan dalam mewujudkan optimalisasi desa yang sehat, berdaya, dan cerdas berkelanjutan. Metode yang digunakan yaitu melalui observasi, wawancara, dokumentasi, dan metode penelitian aksi partisipatif. Hasil dari pengabdian ini yaitu berhasil meningkatkan dalam visibilitas dan daya Tarik produk UMKM, pemberian makanan yang bergizi dan edukasi berhasil memperbaiki kondisi kesehatan dan penurunan angka stunting, promosi digital berhasil menjangkau pengunjung lebih banyak, peningkatan kemampuan membaca pada siswa.
Co-Authors AGUNG PRIJO BUDIJONO Ahmad Azhari Alhikam, Akram Andriani K, Shiva Aziz, Faisal Abdul Bambang Genjik Fadhilah, Nurhidayah K Febry R, Thiana Choerunnissa Herkulana Herkulana Ruhiyati, Suci Nur Sidik, Arul Maulana Yuniar, Zahra Dinda