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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) JURNAL ELEKTRO ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Proceeding of the Electrical Engineering Computer Science and Informatics Syntax Literate: Jurnal Ilmiah Indonesia Jurnal al-Ulum : Jurnal Pemikiran dan penelitian ke-Islaman MITRA: Jurnal Pemberdayaan Masyarakat JURNAL TIARSIE Tasyri` : Jurnal Tarbiyah-Syari`ah-Islamiyah Tabyin; Jurnal Pendidikan Islam SABDAMAS Dakwatuna: Jurnal Dakwah dan Komunikasi Islam Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Indonesian Journal of Electrical Engineering and Computer Science Elektrika Borneo IJGIE (International Journal of Graduate of Islamic Education) Jurnal Ilmiah Wahana Pendidikan Jurnal Locus Penelitian dan Pengabdian Jurnal Sains dan Teknologi Media Bina Ilmiah Eduvest - Journal of Universal Studies Innovative: Journal Of Social Science Research Jurnal Rekayasa elektrika Jurnal Pengabdian Masyarakat Charitas Jurnal Riseta Naturafarm Edumaspul: Jurnal Pendidikan
Tajuddin Nur
Department Of Electrical Engineering, Universitas Katolik Indonesia Atma Jaya, Indonesia
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PENGENALAN DASAR INTERNET DAN MEDIA SOSIAL UNTUK MENDUKUNG PROSES BISNIS BUDIDAYA LELE DI DESA SAMPORA, CISAUK Marsul Siregar; Catherine Olivia Sereati; Tajuddin Nur; Ferry Rippun Gideon Manalu
SABDAMAS Vol 1 No 1 (2019): SABDAMAS
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Unika Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (621.398 KB)

Abstract

Penggunaan internet di Indonesia sudah berkembang pesat. Sayangnya, tidak semua penduduk di Indonesia dapat menggunakan internet secara efektif, khususnya untuk mendukung perekonomian di daerahnya. Desa Sampora, Cisauk, mempunyai potensi budidaya lele yang bila dikembangkan dengan baik dapat mendukung perekonomian daerahnya. Oleh karena itu, penggunaan internet untuk mengembangkan bisnis budidaya lele perlu diperkenalkan di daerah tersebut. Pengenalan internet dasar, penggunaan media sosial, dan pencarian informasi di internet yang efektif dapat mendukung proses pengembangan bisnis budidaya lele di desa Sampora. Dengan demikian, warga Desa Sampora dapat mengembangkan bisnis dan memasarkan hasil budidaya ikan lele dengan lebih luas.
Pengaruh Kombinasi Pemangkasan Ujung Magnet Permanen dan Axial Channel pada inti rotor terhadap Torka Cogging pada Generator Tipe Fractional Slot Number Yudha Suherman; Tajuddin Nur
Jurnal Elektro Vol 13 No 2 (2020): Jurnal Elektro: Oktober 2020
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/jurnalelektro.v13i2.1973

Abstract

This paper is about to discuss the effect of combining a magnetic shaping technique with an axial channel in the rotor core to reduce the cogging torque of a permanent magnet synchronous generator. Computation process is performed by using the optimization response surface method. In this case, this research is done by employing two types of axial channel systems, namely circular and hexagonal. The axial channel area at the core of the engine rotor is 0.000279683 m2. Determination of magnetic shaping was carried out with an angle of 10 and a surface angle of 530. The effect of the combination of the cogging torque reduction technique with magnetic shaping and axal channel was analyzed by numerical method based on the finite element method (FEMM). Based on the analysis, it is found that the combination shows a decrease in cogging torque by 98% when compared with the cogging torque in the initial design (initial structure). Another advantage of the combination of the two cogging torque reduction techniques is that there is no significant increase in the magnetic flux density of the engine core. It can be said that the combination of the cogging torque reduction technique and the axial channel at the core of the engine rotor can significantly reduce the cogging torque.
Analysis on the Cogging Torque of Permanent Magnet Machine for Wind Power Applications Tajuddin Nur; Linda Wijayanti; Anthon de Fretes; Karel Octavianus Bachri
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 7, No 1: EECSI 2020
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eecsi.v7.2082

Abstract

This paper discusses the new feature implemented in most social media messaging applications: the unsent feature, where the sender can delete the message he sent both in the sender and the recipient devices. This new feature poses a new challenge in mobile forensic, as it could potentially delete sent messages that can be used as evidence without the means to retrieve it. This paper aims to analyze how well Autopsy open-source mobile forensics tools in extracting and identifying the deleted messages, both that are sent or received. The device used in this paper is a Redmi Xiaomi Note 4, which has its userdata block extracted using linux command, and the application we’re using is WhatsApp. Autopsy will analyze the extracted image and see what information can be extracted from the unsent messages. From the result of our experiment, Autopsy is capable of obtaining substantial information, but due to how each vendor and mobile OS store files and databases differently, only WhatsApp data can be extracted from the device. And based on the WhatsApp data analysis, Autopsy is not capable of retrieving the deleted messages. However it can detect the traces of deleted data that is sent from the device. And using sqlite3 database browser, the author can find remnants of received deleted messages from the extracted files by Autopsy.
SCADA Solution by Installing DTM6000 and Trunking Tier Three Marsul Siregar; Ikar Mustikaswara; Dhian Wahyudi; Tajuddin Nur
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 7, No 1: EECSI 2020
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eecsi.v7.2093

Abstract

The aim of this study is to provide the new solution for the SCADA system by using the DTM6000 with Tier three and the multipoint node topology for the application offshore mining industry. The application of the proposed design can provide the data as wind speed, machine temperature, sonar, vessel position. Applying the SCADA Software, NMS (network management system), and DWS (Dispatch Work Station), data can be monitored through the control Center. The SCADA system with radiofrequency can cover a wide coverage area (ie up to 60 km). The trunking base station, carry out the data, and able to transmit voice communication with good quality. The technical design and the installation as well as the trial for validation of the proposed system in the remote area offshore of the mining industry is provided. It is might be stated that the system enables the development and addition of more other SCADA equipment in the future
Design and Implementation of Piping Installation for Catfish Farming in Sampora Village Karel Octavianus Bachri; Sandra Octaviani; Marsul Siregar; Widodo Basuki; Tajuddin Nur; Christine Natalia
MITRA: Jurnal Pemberdayaan Masyarakat Vol 4 No 1 (2020): MITRA: Jurnal Pemberdayaan Masyarakat
Publisher : Institute for Research and Community Services

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/mitra.v4i1.1061

Abstract

Atma Jaya Catholic University of Indonesia has Faculty of Engineering, which is committed to empower its surrounding communities. This empowerment is implemented based on its core values. The present community empowerment activities have been planned through a series of agreements and the main goal of the activities is to develop the entrepreneurship based on the strength of the area. This paper discusses the assistance given by Faculty of Engineering in designing piping installation for supporting aquaponic activities in Desa Sampora. The project was divided into three steps. First, this project focused on observation and data collecting. This first step also involved discussion with experts. Second, it focused on the design process. The result of the first step was used in the design. Third, the design was implemented and installed in the location. All the steps required careful planning to minimize errors. The expected target of these activities was an aquaponic piping design that is feasible to implement to support sustainable and productive entrepreneurship. The final result was piping installation that can grow 120 plants, is easy to clean up, and has area efficiency.
Implementation of Energy Management Concept and Energy Management System in High Rise Office Building Marsul Siregar; Firma Purbantoro; Tajuddin Nur
Jurnal Tiarsie Vol 16 No 3 (2019): Jurnal TIARSIE 16.3 Edisi RITEKTRA IX
Publisher : Fakultas Teknik Universitas Langlangbuana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (820.575 KB) | DOI: 10.32816/tiarsie.v16i3.55

Abstract

Energy Management Concept as part of Green Building Concept is focused to Improve Energy Efficiency Index (EEI) and Water Consumption Index (WCI). The Implementation Energy Management Concept in an office buildings of this study based on the management system model of continual improvement ISO 50001:2011. The purpose of this study was to determine the extent to which the implementation of green building principles in Office Buildings. This study took the case study in an office building in Jakarta Indonesia that has two towers, each tower has 32 floors and 3 basement floors. The method used is descriptive with respect to GREENSHIP Rating Tools for existing building which consists of six categories; Appropriate Site Development (ASD), Energy Efficiency & Conservation (EEC), Water Conservation (WAC), Material Resources & Cycle (MRC), Indoor Air Health & Comfort (IHC) and Building & Environments Management (BEM). The results show that implementation the Energy Management Concept could also made energy performance more efficient, after Implementing through Retrofitting of the Chiller System, Recycle Waste Water, Replacement of Conventional lamp to Energy Saving LED and also Training and Education to all employees and tenants. From comparing data research before implementation of Energy Management Concept in 2014 and after Implementation and retrofitting in 2016, 2017 & 2018, it is found that Energy Efficiency Index (EEI) from 238.8 kwh/m2/Years to 134,04kwh/m2/Year and Water Consumption Index (WCI)From 50 liter/person/Day to 27.18 Liter/person/Day. And the saving cost from electricity bill payments is IDR. 466,803,325.67 / month (18%) and roughly will Break Event Point (BEP) for 3.86 Years
Performance analyzes of a compact pico hydropower plant with a wide operating range Pudji Irasari; Anwar Muqorobin; Puji Widiyanto; Tajuddin Nur; I Nengah Diasta; Priyono Soetikno
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 13, No 4: December 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v13.i4.pp2357-2364

Abstract

This paper analyzes the performance of a pico hydropower plant consisting of an axial hydro turbine integrated with a permanent magnet generator (PMG) and connected to a power converter. The proposed system is aimed to obtain a wide system operation range to gain more power captured while maintaining time-harmonic distortion in voltage (THDv) that meets the standard. The PMG specification is 1 kW, 1 phase, 235 V, 50 Hz, 83 rpm. The design and simulation of PMG were carried out by analytical and numerical calculations using FEMM 4.2. The power converter was simulated using PSIM and functions to reduce the THDv and pass the generator voltage between 50–500 V. The results show the THDv of the generating system at the upper and lower limits of the passed voltage having a THDv below 5%. Meanwhile, the PMG performance characteristics at various currents and rotations produce efficiency of 87.20% at nominal current. From these results, it can be concluded that the pico hydropower plant works well as desired.
Declining Cogging Torque Technique of an Integral Slot Number for Permanent Magnet Machines Herlina Herlina; Tajuddin Nur; Maria Angela Kartawidjaja; Linda Wijayanti; Kumala Indriati; Sheila Tobing
Jurnal Rekayasa Elektrika Vol 19, No 4 (2023)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v19i4.30028

Abstract

The existence of cogging torque in electric equipment has been considered undesirable. This kind of friction in the air-gap impacts the alignment of flux and the stator slots, resulting in the observed outcome. Consequently, the imposition of restrictions on the rotation of the rotor is employed to generate electrical energy. This research endeavor primarily aims to mitigate the cogging torque of electrical machinery. The current utilization involves employing a total of 3 permanent magnet synchronous machines, often known as inset PMMs, which possess a slot count of 24 and a pole count of 8. The employed technique involves the integration of an optimal pole arc method in conjunction with the implementation of slots cut into the magnet's edge. The machine model under investigation has two fundamental variants, namely Models 1 and 2. These models are equipped with 1one-step slotted (OSS) and 2two-step slotted (TSS) edges on each magnet, in addition to pole arc optimization. The simulation was conducted using the Finite Element Method Magnetics (FEMM) 4.2 software together with LUA scripts, with a focus on rotor rotation ranges of 1 degree. Model 2 exhibited a decrease in cogging torque of 0.01 Nm, whereas Model 1 demonstrated a reduction of 0.015 Nm, and the basic model had a decrease of 0.02 Nm. When implementing a dual-layered cutting edge on a magnet and attempting to optimize its pole arc, it is imperative to consider that the cogging torque's peak magnitude becomes substantially diminished or entirely eliminated.
Analisis Kecerdasan Emosional dalam Pendidikan Agama Islam pada Peserta Didik Kelas VII di SMP Negeri 2 Telukjambe Timur Indriana Pitaloka; Tajuddin Nur; Hinggil Permana
Tasyri` : Jurnal Tarbiyah-Syari`ah-Islamiyah Vol 30 No 02 (2023): Oktober 2023
Publisher : LPPM STAI Ihyaul Ulum Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52166/tasyri.v30i02.346

Abstract

Kecerdasan emosional adalah kemampuan seseorang dalam mengelola kehidupan emosional secara cerdas melalui kemampuan kesadaran diri, mengelola emosi, motivasi diri, empati dan membina hubungan. Tujuan dalam penelitian ini adalah untuk mengetahui kecerdasan emosional peserta didik kelas VII di SMP Negeri 2 Telukjambe Timur. Metode penelitian yang digunakan dalam penelitian ini adalah metode deskriptif dengan pendekatan kuantitatif. Penelitian ini dilakukan untuk menggambarkan dan melakukan deskripsi mengenai Kecerdasan Emosional Pada Peserta Didik Kelas VII di SMP Negeri 2 Telukjambe Timur. Berdasarkan hasil analisis data angket kecerdasan emosional dengan sampel 82 peserta didik kelas VII di SMP Negeri 2 Telukjambe Timur maka dapat disimpulkan bahwa diperoleh nilai rata-rata dari seluruh indikator sebesar 83% dengan kriteria sangat baik. Indikator pertama yaitu kesadaran diri memperoleh rata-rata sebesar 84%. Indikator kedua yaitu mengelola emosi memperoleh rata-rata sebesar 84%. Indikator ketiga yaitu motivasi diri memperoleh rata-rata sebesar 82%. Indikator keempat yaitu empati memperoleh rata-rata sebesar 85%. Dan indikator kelima yaitu membina hubungan memperoleh rata-rata sebesar 82%.
Pengaruh Kombinasi Pemangkasan Ujung Magnet Permanen dan Axial Channel pada inti rotor terhadap Torka Cogging pada Generator Tipe Fractional Slot Number Suherman, Yudha; Nur, Tajuddin
Jurnal Elektro Vol 13 No 2 (2020): Jurnal Elektro: Oktober 2020
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/jurnalelektro.v13i2.1973

Abstract

This paper is about to discuss the effect of combining a magnetic shaping technique with an axial channel in the rotor core to reduce the cogging torque of a permanent magnet synchronous generator. Computation process is performed by using the optimization response surface method. In this case, this research is done by employing two types of axial channel systems, namely circular and hexagonal. The axial channel area at the core of the engine rotor is 0.000279683 m2. Determination of magnetic shaping was carried out with an angle of 10 and a surface angle of 530. The effect of the combination of the cogging torque reduction technique with magnetic shaping and axal channel was analyzed by numerical method based on the finite element method (FEMM). Based on the analysis, it is found that the combination shows a decrease in cogging torque by 98% when compared with the cogging torque in the initial design (initial structure). Another advantage of the combination of the two cogging torque reduction techniques is that there is no significant increase in the magnetic flux density of the engine core. It can be said that the combination of the cogging torque reduction technique and the axial channel at the core of the engine rotor can significantly reduce the cogging torque.
Co-Authors Abdul Kosim, Abdul Ahmad, Suhairi Rizuan Che Almaida, Maria Andre Sugioko Anjani, Jihan Fajira Anthon de Fretes, Anthon de Fretes Anwar Muqorobin Aqsha, Fikrie Astuti Darmiyanti Baso Didik Hikmawan Bintan Silmiahalwah Catherine Olivia Sereati Christine Natalia CORREIA, LUCIO ALFREDO Dede Ridza Diana Dhami Johar Damiri Dhian Wahyudi Duma K Y Hutapea Duma Kristina Yanti English Farid Farid, Farid Felix Udianto, Johanes Ferry Rippun Gideon Manalu, Ferry Rippun Gideon Fikri, Miftahul Firma Purbantoro Fithri Muliawati Fretes, Anthon de Gifran Septamas Gita Wardhana Gumilar, Ade HALIM, MARCHELL MORDEKHAI Herlina . Herlina Herlina Herlina Herlina Herlina Herlina Herman Hinggil Permana I Nengah Diasta Ibrahim, Arsyik Ikar Mustikaswara Indriana Pitaloka Irwan Firdaus Iswati Iswati, Iswati Karel Octavianus Bachri Khoerunnisa, Khoerunnisa Kumala Indriati Linda Wijayanti Lucio Alfredo Correia Lucio Alfreido Correira Luqman Hakim M, Yoga Wirotama Maehi, Emay Ahmad Mardhyah, Annisa Nur'Ismah Maria Angela Kartawidjaja Maria Angela Kartawijaya Marsul Siregar Marwan Rosyadi Melisa Mulyadi Mustikaswara, Ikar Neng Ulya Nova Eka Budiyanta Nur Pratama, Yuandika Othman, Raja Nor Firdaus Kashfi Raja PANDJAITAN, LANNY Pandjaitan, Lanny W. Pangestu, Devin Pardosi, Cristoni Hasiholan pengelola, pengelola Priyono Soetikno Pudji Irasari Puji Widiyanto Rusman, Arman Sandra Octaviani Sibatuara, Henra Sihotang, Arviju Suherman, Yudha Surya Widjaja, Williem Syamsir Abduh Syamsir Abduh Syamsir Abduh Timothy Sutjipto, Marcellus Timothy Wijaya, Hans Tobing, Sheila Trifenaus Prabu Hidayat Ulya, Neng Wahyudi, Dhian Widiarto, Sandra Octaviani B. Widodo Basuki Wijayanto, Puput Tri Yahya, Yanawati Yakin, Aenul YANASTANTO, GUSTIESAR ALBARRY Yudha Suherman Zacky Irfan Al Farisie