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All Journal Jurnal Hukum Khaira Ummah Teknologi dan Kejuruan: Jurnal teknologi, Kejuruan dan Pengajarannya Jurnal Pendidikan Vokasi REKA ELKOMIKA Journal of Mechanical Engineering Education (Jurnal Pendidikan Teknik Mesin) Journal of Business Management Education (JBME) Jurnal Konselor YUME : Journal of Management Scientific Journal of Mechanical Engineering Kinematika Jurnal Inovasi Pendidikan dan Sains AEEJ : Journal of Automotive Engineering and Vocational Education Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Journal of Mechanical and Electrical Technology Prosiding Seminar Nasional Teknologi Industri Berkelanjutan Journal of Management and Innovation Entrepreneurship (JMIE) Journal Of Sport Education, Coaching, And Health
RAMDHANI RAMDHANI
Jurusan Teknik Elektro ITENAS Bandung
Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Other

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PERAN GURU BK/KONSELOR DALAM MEMBANTU SISWA MENGHADAPI MASA PUBERTAS Ramdhani, Ramdhani
Jurnal Konselor Vol 2 No 1 (2015): Jurnal Konselor
Publisher : Universitas Muhammadiyah Prof.Dr.Hamka

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Abstract

Adolescence is a period in which the development and rapid growth. This change is also commonly called as puberty. The changes experienced by teenagers on puberty often make them restless. As a matter of fact, counseling teachers / counselors have an enormous role in helping students overcome the puberty. This role is reflected from counseling service given to help students face puberty so it can create good judgment of puberty. Hence, the teenagers will have a positive self-concept in his life.
PERANCANGAN DAN REALISASI LISTRIK WIRELESS MENGGUNAKAN RESONANT COUPLING MAGNETIC RAMDHANI, RAMDHANI; WALUYO, WALUYO; SAODAH, SITI
REKA ELKOMIKA Vol 1, No 1 (2013)
Publisher : REKA ELKOMIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (429.014 KB)

Abstract

ABSTRAK   Transfer energi listrik dapat dilakukan dengan metoda resonansi, yaitu dengan menyamakan frekuensi pada sisi pengirim (transmitter) dengan sisi penerima (receiver). Frekuensi yang digunakan adalah 22 khz yang dihasilkan pada rangkaian inverter setengah gelombang dengan tegangan output 100 Vac, dihubungkan dengan kapasitor dan kumparan pengirim. Pada listrik wireless ini dilakukan tiga kali percobaan yaitu kumparan pada 50 lilitan, 30 lilitan dan 20 lilitan. Ini dilakukan untuk mengetahui besar impedansi yang dihasilkan, yang berpengaruh untuk transfer energi listrik. Untuk kumparan optimalnya adalah 20 lilitan, Karena pada 30 dan 50 lilitan impedansi yang dihasilkan lebih besar dari pada 20 lilitan. Jarak transfer maksimal dari kumparan pengirim (transmitter) kepada kumparan penerima (receiver) adalah 25 cm dengan tegangan 6,32 Vac dan jarak minimal adalah sebesar 10 cm dengan tegangan 15,6 Vac. Ini membutikan jika jarak semakin jauh maka tegangan semakin kecil dan daya pancarnya semakin kecil dan jika jaraknya semakin dekat  maka tegangan semakin besar. Kata kunci: induksi, wireless, jarak ABSTRACT Electricity Energy Transfer can be done with the method resonansi, that is with frequency on the sender side equalize (transmitter) with a side of receiver (receiver). The frequency used is 22 khz resulting in a series of half-wave voltage inverter with 100 Vac, output is connected to the capacitor and the coil is the sender. Wireless electricity is conducted at three times the experiment is at 50 coil, 30 coil and 20 coil. This is done to know the large impedance is produced, the influential for the transfer of electrical energy. For optimal coil is a coil 20, because at 30 and 50 coil impedance resulting is greater than 20 coils.Transfer maximum distance of the coil the sender (transmitter) to coil the recipient (receiver) is 25 cm to voltage 6,32 Vac and a minimum distance is as much as 10 cm to voltage 15,6 Vac. This proves that if the far distance then the smaller voltage and if the distance getting closer voltage so thet the emissitivity is getting better. Keywords: induction, wireless, distance
Developing an adaptive and interactive educational game based learning: the effective integration of technology to support learning Firdausi Sulaksana, Ratu Dintha Insyani Zukhruf; Disas, Eka Prihatin; Masharyono, Masharyono; Ramdhani, Ramdhani; Firdausi Sulaksana, Raja Pasha Agastya Zukhruf
Journal of Business Management Education (JBME) Vol 8, No 3 (2023)
Publisher : Business Education Program of Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jbme.v8i3.63962

Abstract

Pandemi membawa perubahan cepat di berbagai bidang kehidupan, termasuk pendidikan, sehingga memaksa semua orang untuk belajar adaptif, salah satunya melalui instrumen teknologi digital. Terdapat akselerasi yang luar biasa dalam pemanfaatan teknologi digital di dunia pendidikan pada masa pandemic yang berlangsung hingga post pandemic. Salah satu inovasi media pembelajaran yang paling cepat perkembangannya adalah media pembelajaran berbasis game. Tujuan dari penelitian ini adalah mengembangkan media pembelajaran yang adaktif dan interaktif berbasis educational game-based. Metode penelitian yang dipakai adalah Research and Development (RD). Penelitian ini diharapkan dapat menciptakan sebuah game edukasi yang adiktif dan interaktif, sehingga tercipta sinergi antara teknologi dan pembelajaran.
Analisis Aerodinamika Bodi Kendaraan Urban Single Seater menggunakan metode Computational Fluid Dynamics (CFD) Aprillia, Rheihanita Noer; Ramdhani, Ramdhani; Sriyono, Sriyono
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 4 No 2 (2023): AEEJ : Journal of Automotive Engineering and Vocational Education
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/aeej.v4i2.211

Abstract

The purpose of this study is to determine the aerodynamic design of an energy-efficient vehicle body by reducing the drag force and side force. The method used is to compare two single seater vehicle body designs through Computational Fluid Dynamics simulations on the Autodesk Flow Design tool. Then proof is carried out using theoretical calculation analysis. Based on the simulation test, it was found that the aerodynamics of vehicle design 2 had a smaller aerodynamic force compared to design 1. The difference in the drag force value with speed variations of 13.9 m/s in the simulation and theoretical analysis was 6.814 N and 4.3 N. Meanwhile, the difference in the value side force with the same speed variations in the simulation and theoretical analysis is 7.399 N and 7.3N. Tujuan dari penelitian ini adalah untuk merancang bodi kendaraan hemat energi yang aerodinamis dengan mengurangi besar drag force dan side force. Metode yang digunakan yaitu membandingkan dua rancangan desain bodi kendaraan single seater melalui simulasi Computational Fluid Dynamics pada perangkat Autodesk Flow Design. Kemudian dilakukan pembuktian menggunakan analisisa perhitungan secara teoritis. Berdasarkan uji simulasi, didapatkan bahwa aerodinamika desain kendaraan 2 memiliki gaya aerodinamika lebih kecil dibandingkan dengan desain 1. Selisih perbedaan nilai drag force dengan variasi kecepatan 13,9 m/s pada simulasi dan analisa teoritis yaitu sebesar 6,814 N dan 4,3 N. Sedangkan perbedaan nilai side force dengan variasi kecepatan yang sama pada simulasi dan Analisa teoritis yaitu sebesar 7,399 N dan 7,3 N.
Optimizing the Knuckle Corner Design of an Urban EV8 Vehicle Category Concept to Meet Turning Radius Requirements Nurhadi, Idham; Ramdhani, Ramdhani; Mubarak, Ibnu
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 4 No 2 (2023): AEEJ : Journal of Automotive Engineering and Vocational Education
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/aeej.v4i2.212

Abstract

This research aims to achieve the smallest possible turning radius for the knuckle joint while also meeting the regulations set by the Shell Eco-Marathon (SEM) committee regarding the design angles and lengths. Calculations and testing are conducted using simulation methods to obtain suitable angles and lengths for the knuckle. This simulation method involves a series of analyses to obtain data such as static turning radius diagrams, followed by an analysis using the camber calculation formula. The shape, angle, length, and design of the knuckle are considered with regard to driving safety factors. The findings of this study indicate that for a six-meter turning radius, the outer wheel requires a steering angle of δ_0=10.868°, and the inner wheel requires a steering angle of δ_i=77.397°. After improvements, for a 5.5-meter turning radius, the outer wheel requires a steering angle of δ_0=15.960°, and the inner wheel requires a steering angle of δ_i=71.321°. It can be concluded that this design can optimize the performance of the knuckle steering system.
ERGONOMIC ANALYSIS OF TRANSMISSION OVERHAUL PRACTICES WITH THE RULA METHOD IN THE DEPARTMENT MECHANICAL ENGINEERING EDUCATION Ramdhani, Ramdhani; Peranginangin, Excellent Demolka
Journal of Mechanical Engineering Education (Jurnal Pendidikan Teknik Mesin) Vol 9, No 2 (2022): Desember 2022
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jmee.v9i2.52829

Abstract

This research was conducted to determine the work posture and the level of ergonomics risk in the transmission overhaul practice activity which later resulted in recommendations for designing ergonomic practical tools based on anthropometry of students from the Department of Mechanical Engineering Education UPI. Descriptive method through a cross-sectoral approach is used to answer the objectives of this study. Instruments such as anthropometric questionnaires regarding the dimensions of student body measurements include data on upright height, length of arm span to the side, and length of arm forward. The Rapid Upper Limb Assessment (RULA) questionnaire was also used for ergonomic risk level data requirements. The data that has been obtained is then processed by means of a data uniformity test, data adequacy test, and percentile calculation to determine 3 students who represent body size at the 5th, 50th, and 95th percentiles and continue to practice transmission overhaul which will be observed through a questionnaire. The results of data processing in this study explained that students' unusual work postures such as the neck upturned, legs bent, and the position of the hands reaching upwards for a long enough duration to cause aches and pains after the practice was over. This is evidenced by the acquisition of an overall score of 7 which means it is necessary to investigate and make changes to the process as well as the tools used in the transmission overhaul practice.
Evaluation of Technology Literacy Capabilities Through Automotive Simulator Assisted Learning Munawar, Wahid; Sriyono, Sriyono; Ramdhani, Ramdhani; Rajab, Ismadi
Teknologi dan Kejuruan: Jurnal Teknologi, Kejuruan, dan Pengajarannya Vol 45, No 2: September 2022
Publisher : Fakultas Teknik Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um031v45i22022p106-113

Abstract

The purpose of the study was to assess student learning outcomes on automotive technology literacy skills in aspects of automotive technology knowledge and competence. The research method used descriptive method. The time of the study was carried out from January to March 2022. The research location is in the automotive study program vocational high school in Cimahi City. The research sample used cluster random sampling, 1 (one) class of 35 students was selected. The research instrument was a multiple-choice technological literacy test. Technological literacy indicators consist of identifying scientific problems, explain scientific phenomena, and using scientific evidence. The scope of the test questions is air conditioning in the vehicle. The test questions were validated by five automotive teachers and lecturers. Automotive learning treatment virtually and face to face, using simulator media. Data analysis using percentages. The results of the study show that 46.6 percent of students have automotive technology literacy skills in terms of knowledge and competence, 71 percent of students have scientific identification skills (car air conditioning issues), 46 percent of students have literacy using scientific evidence and 40 percent have literacy in explaining scientific phenomena
Pemetaan Genangan Banjir di Jalan TB. Simatupang, Jakarta Selatan oleh Unit Pengelola, Penyelidikan, Pengukuran dan Pengujian (UP4) Dinas Sumber Daya Air DKI Jakarta Rakuasa, Heinrich; Wahab, Wulan Abdul; Kamiludin, Kamiludin; Jaelani, Ahmad; Ramdhani, Ramdhani; Rinaldi, Muhamad
Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Vol. 3 No. 2 (2023): Maret 2023 - Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59395/altifani.v3i2.379

Abstract

Banjir yang terjadi di Jalan TB Simatupang tanggal 7 februari 2023 disebabkan oleh intensitas curah hujan yang tinggi sebulan ini serta adanya saluran air yang tersumbat oleh sampah atau material lainnya dapat menghambat aliran air ke Kali Krukut, sehingga air tidak bisa mengalir dengan lancar dan menggenangi jalan TB Simatupang, Jakarta Selatan. Unit Pengelola Penyelidikan Pengukuran dan Pengujian (UPPP) Dinas Sumber Daya Air Provinsi DKI Jakarta memiliki tugas untuk mengenalisis dan memodelkan genangan banjir yang terjadi. Tujuan kegiatan ini adalah untuk melakukan pemodelan spasial luapan genangan banjir dari DAS Krukut dan saluran di Jalan Simatupang, Jakarta Selatan. Penelitian ini menggunakan metode Fload Inundation yang merupakan modifikasi dari metode Tsunami Inundation. Data yang digunakan yaitu data LIDAR dan foto udara. Fariabel yang digunakan diantaranya kemiringan lereng, indeks kekasaran permukaan yang diperoleh dari tutupan lahan, ketinggian genangan banjir waktu itu dan data saluran dan sungai. Hasil pemodelan menunjukan bahwa limpasan genangan banjir yang terjadi dengan ketinggian hingga 60 cm memiliki luasan sebesar 7,76 ha dan pada umum daerah yang tergenang banjir adalah daerah jalan raya yang dekat dekat saluran air. Hasil pemodelan ini dapat digunakan untuk perencaan pembangunan, penanganan banjr, peningkatan kesipsiangaan dan pengembangan sistim peringatan dini.
RANCANG BANGUN SISTEM PERINGATAN KANTUK PADA PENGENDARA SEPEDA MOTOR BERBASIS FUZZY LOGIC Samosir, Daniel Moses; Setyaji, Aditya Bayu; Ramdhani, Ramdhani; Sukrawan, Yusep
Scientific Journal of Mechanical Engineering Kinematika Vol 9 No 1 (2024): SJME Kinematika Juni 2024
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v9i1.311

Abstract

Motorcycle riders are basically required to drive with awareness of orderly behavior on the road. However, the fact is that many motorbike accidents are still caused by negligence, one of which is drowsiness while driving. This research aims to develop a fuzzy logic-based drowsiness prevention tool for motorcyclists. This tool goes through 4 stages of testing, namely power supply, sensor, microcontroller and actuator. The results of testing are that the power supply on this tool functions well, the tools on the motorbike and helmet function well according to the program designed on the microcontroller, the pulse sensor designed for motorbikes does not function as it should, so for temporary research the Max sensor is used 30100 as a pulse reader, buzzer, vibrator and relay in this tool functions well and is more accurate compared to previous research according to the fuzzy rules that have been programmed. The use of sensors on the wrist has proven to be effective in detecting pulse, so that the accuracy of sleepiness readings is in line with pulse readings, namely 100%, which is a follow-up to previous research. Fuzzy logic on the device influences the microcontroller to work accurately according to what has been programmed.
Pengaruh Latihan Massed Practice Terhadap Keterampilan Jump Shoot Pada Atlet Bolabasket Eleven Basketball Club Makassar Ramdhani, Ramdhani; Haikm, Hikmad; Hammado, Nurussyariah
Journal of Sport Education, Coaching, and Health (JOCCA) Vol 3 No 2 (2022): Juni
Publisher : Sains Global Institut, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35458/jc.v3i2.1261

Abstract

Penelitian ini bertujuan untuk mengetahui Pengaruh Latihan Massed Practice terhadap Keterampilan Jump Shoot pada Atlet Bola Basket Eleven Basketball Club Makassar. Penelitan ini termasuk jenis penelitian eksperimen dengan satu variabel terikat yaitu metode latihan massed practice dan satu variabel terikat yaitu keterampilan jump shoot. populasi penelitian ini adalah keseluruhan pemain Eleven Basketball Club Makassar. Sampel diperoleh 20 orang yang dibagi menjadi dua kelompok dengan menggunakan metode MSOP. Berdasarkan analisis data deskriptif, (1) Untuk data selisih jump shoot kelompok kontrol dari 10 jumlah sampel diperoleh nilai rata-rata (mean) sebesar 1.17, hasil simpangan baku (standar deviasi) 1.37, range sebesar 4, nilai terendah (minimum) sebesar 0 dan nilai tertinggi (maksimum) sebesar 4. (2) Untuk data selisih jump shoot kelompok eksperimen dari 10 jumlah sampel diperoleh nilai rata-rata (mean) sebesar 7.5, hasil simpangan baku (standar deviasi) 1.43, range sebesar 5, nilai terendah (minimum) sebesar 20 dan nilai tertinggi (maksimum) sebesar 10. (1) Untuk data selisih jump shoot kelompok kontrol diperoleh nilai Kolmogorov-Smirnov 0.738 dan nilai tingkat probabilitas 0.647 (P>0.05), maka dapat dikatakan bahwa data tersebut mengikuti sebaran normal atau berdistribusi normal (2) Untuk data selisih jump shoot kelompok eksperimen diperoleh nilai Kolmogorov-Smirnov 0.517 dan nilai tingkat probabilitas 0.952 (P>0.05), maka dapat dikatakan bahwa data tersebut mengikuti sebaran normal atau berdistribusi normal. Data uji homogenitas data keterampilan jump shoot pada atlet bolabasket Eleven Basketball Club Makassar kelompok kontrol dan eksperimen diperoleh nilai levene statistic 2,229 dan nilai P 0.154 (P>0.05), maka dapat dikatakan bahwa data tersebut homogen. Dari data selisih keterampilan jump shoot kelompok kontrol diperoleh nilai rata-rata 1.4 dengan nilai P 0.000 (P> α 0.005). Dari data selisih keterampilan jump shoot kelompok eksperimen diperoleh nilai rata-rata 7.5 dengan nilai P 0.000 (P> α 0.005). terdapat perbedaan selisih yang signifikan antara kedua kelompok di mana pada kelompok eksperimen ada peningkatan hasil jump shoot sebesar 7.5. Ada selisih 6.1 antara kelompok kontrol dengan kelompok eksperimen. Berdasarkan hasil analisis data dan uraian pembahasan yang telah dikemukakan maka dapat disimpulkan bahwa ada pengaruh yang signifikan latihan massed practice terhadap keterampilan jump shoot pada atlet bolabasket Eleven Basketball Club Makassar.
Co-Authors Aditya, Dwi Julian Ahmad Jaelani Aini, Nevi Fitria Aprillia, Rheihanita Noer Apriyono, Rahmad Arifah, Nissa Nurul Darmansyah, Deden Disas, Eka Prihatin Erdhianto, Yoniv Firdausi Sulaksana, Raja Pasha Agastya Zukhruf Firdausi Sulaksana, Ratu Dintha Insyani Zukhruf Gunarto Gunarto Haikm, Hikmad Hammado, Nurussyariah Ibnu Mubarak Joni Tesmanto, Boma Jonaldy Tanjung , Kamiludin, Kamiludin Masharyono Masharyono Nurhadi, Idham Peranginangin, Excellent Demolka Prastyo, Yudi Pratama, Sultan Muhammad Adi Raharjo, Moch. Ilham Rajab, Ismadi Rakuasa, Heinrich Rinaldi, Muhamad Sagala, Ratna Samosir, Daniel Moses Setyaji, Aditya Bayu SITI SAODAH Sriyono Sriyono Sukrawan, Yusep Tatang Permana, Tatang Tubagus Pamungkas Wahab, Wulan Abdul Wahid Munawar Waluyo Waluyo