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All Journal JREC (Journal of Electrical and Electronics) InComTech: Jurnal Telekomunikasi dan Komputer Journal of Energy and Electrical Engineering (JEEE) DEVOSI Journal of Computer Science Contributions (Jucosco) Jurnal Rekayasa Informasi
Sri Marini
Universitas Islam "45" Bekasi
Religion Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Social Sciences

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PENINGKATAN KUALITAS KECERDASAN MASYARAKAT MELALUI PENGEMBANGAN PERMAINAN LEMPAR JAMBU ELEKTRONIK Marini, Sri; Piliang, Faisal
JREC (Journal of Electrical and Electronics) Vol 6 No 1 (2018): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (721.062 KB)

Abstract

Permainan tradisional Indonesia adalah permainan yang sering dimainkan oleh anak-anak di Indonesia. Dengan bermain permainan tradisional Indonesia ini membuat anak-anak dapat mengetahui dan mengenal kebudayaan yang ada di Indonesia. Penelitian ini bertujuan untuk memberikan layanan permainan lempar jambu elektronik dengan harapan permainan ini dapat dijadikan sebagai media pendidikan dan pembelajaran yang bisa digunakan meningkatkan kwalitas kecerdasan masyarakat. Penelitian ini menggunakan metode deskriptif analitik dan rancang bangun dengan menyajikan rangkuman wawancara dan survey lapangan untuk membangun model permainan lempar jambu elektronik. Keluaran dari penelitian ini adalah agar dapat melakukan proses rancang bangun dan memberdayakan sebuah permainan elektronik berupa permainan lempar jambu elektronik, penelitian ini diharapkan juga dapat dijadikan sebagai media pendidikan dan pembelajaran serta dapat menumbuhkan rasa senang terhadap tantangan bagi masyarakat di Indonesia, telah berhasil dibuktikan dengan mengimplementasikan model permainan lempar jambu elektronik. Kata Kunci: Diagram Model, Kualitas Kecerdasan, Permainan Lempar Jambu Elektronik, Story Board, Struktur Navigasi The Indonesian traditional game is a game that is often played by children in Indonesia. By playing the Indonesia traditional game will make children can know the culture in Indonesia. This research aims to provide throwing guava electronic game in the hope that this game can serve as a medium of education and learning that can be used to improve the quality of community intelligence. This research uses descriptive analytic and design methods by presenting a summary of interviews and field surveys to build models of throwing guava electronic game. The output of this research is to be able to perform the design process and empower an throwing guava electronic game, this research is expected also can be used as media of education and learning and can grow the feeling of pleasure to challenge for society in Indonesia, has been proven by implementing model of throwing guava electronic game. Keywords:  Diagram Model, Navigation Structure, Quality of Intelligence, Story Board, Throwing Guava Electronic Game
ANALISIS PENGARUH KADAR AIR TERHADAP KARAKTERISTIK TEGANGAN TEMBUS DAN DIELEKTRIK ISOLASI PRESSBOARD TIPE B.3.1 Rachman, Rizky Abdul; Paronda, Abdul Hafid; Marini, Sri
JREC (Journal of Electrical and Electronics) Vol 6 No 1 (2018): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

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Abstract

Transformator merupakan komponen yang sangat penting dalam sistem transmisi dan distribusi listrik dalam kehidupan modern saat ini. Keandalan transformator sangat bergantung pada sistem isolasinya, salah satu isolasi yang digunakan dalam transformator adalah pressboard. Pressboard merupakan isolasi padat dan karena sifatnya yang padat menyebabkan pressboard rentan terhadap kenaikan tingkat kadar air yang terjadi karena pengaruh dari kelembaban udara di dalam ruangan. Tingkat kadar air dapat mempengaruhi penurunan terhadap tegangan tembus dan kekuatan dielektrik pressboard. Penelitian terhadap pressboard dilakukan dengan mengukur tingkat kadar air pressboard yang telah dikeringkan dalam temperatur 103±2ºC selama 48 jam kemudian disimpan dalam ruangan dengan temperatur 30ºC dengan kelembaban 70% selama 10 hari. Pressboard dengan ukuran tipis lebih cepat menyerap air dan lebih cepat mencapai titik jenuh.  Pressboard dengan kadar air dengan nilai ±10% dapat menyebabkan penurunan sebesar > 50% dari kemampuan pressboard menahan tegangan tembus dalam kondisi kering. Pressboard dengan kadar air ±10% juga dapat menyebabkan kekuatan dielektrik pressboard < 11 kV/mm yang berarti nilai tersebut berada dibawah standard kekuatan dielektrik berdasarkan IEC 60641. Kata kunci : Transformator, Pressboard, kadar air, tegangan tembus, kekuatan dielektrik. Transformer is an important component of modern electrical transmission and distribution system. The reliability of transformer depends on its insulation system. Pressboard is one of solid insulations used for transformer. Due to its solid nature, pressboard is susceptible to the increase in the level of moisture content caused by humidity of room temperature. The level of water content can cause the decrease toward breakdown voltage and dielectric strength of pressboard. Research toward pressboard is conducted to measure the water content of pressboard dried in temperature 103±2ºC for 48 hours before it was kept in a room with temperature of 30ºC and the humidity level of 70% for ten days. Thin-sized pressboard absorbed water and reached saturation point quicker. Pressboard with ±10% water content can reduce > 50% of pressboard?s ability to withstand breakdown voltage in dry condition. Pressboard with ±10% water content can also result in dielectric strength of <11 kV/mm, putting it under standard of dielectric strength based on IEC 60641. Keywords: Transformer, pressboard, water content, breakdown voltage, dielectric strength.
PROTOTIPE ANTENA MIKROSTRIP FEED SLOT LOOP BERFREKUENSI MILIMETER WAVE UNTUK TEKNOLOGI 4G LTE Asrika, Sukwati Dewi; Marini, Sri; Paryati, Ninik
JREC (Journal of Electrical and Electronics) Vol 7 No 2 (2019): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

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Abstract

Teknologi 4G LTE membutuhkan antena yang bekerja pada frekuensi 1,8 GHZ - 5 GHZ. Pada Penelitian ini merancang Antena mikrostrip wide-band T tranformer slot loop patch persegi berfrekuensi milimeter wave berkerja pada range frekuensi 2 GHz - 5 GHz. Geometri antena 12 x 18
Antena Mikrostrip Patch Square Double Slit Metode Proximity Couple Untuk Teknologi 5G Waridhah, Sunilam; Marini, Sri; Bakri, Muhammad Amin
JREC (Journal of Electrical and Electronics) Vol 8 No 1 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i1.2199

Abstract

Fifth generation (5G) cellular communication system needs more require higher data rate. One of the major innovations in 5G system is to utilize the millimeter wave (mm-wave) spectrum above 24 GHz together with a beam-controlled phased array antenna. This study aims to design a microstrip antenna with a working frequency of 24.25 GHz- 27.5 GHz with a bandwidth of 3.25 GHz. The patch used is a square double slit and given a U-shaped slot that can change the parameter value, the proximity coupled rationing method with an impedance value (ZL) of 50 Ohms. This microstrip antenna design uses double side PCB RTD Duroid 5880 series dielectric material. The selection of RT Duroid 5880 has a thickness of 1.575 mm, and the dielectric constant value of 2.2 as a substrate is considered suitable for high frequencies (above 10 GHz). The conductor material uses copper with a thickness of 0.035 mm. This study produces dimensional simulation before and after optimization of the working frequency of 26 GHz. Before optimization, the return loss value was -6,625 dB, VSWR 2.7481 and gain 5 dBi. Once optimal, the resulting loss value is -15,821 dB, VSWR 1.3861 and a gain value of 10.1 dBi. Antenna that has been manufactured, is implemented on wifi modem, where the modem The manufactured antenna is implemented on a Wi-Fi modem, where the modem specifications are in 4G. Antenna 5G installed on a wifi modem is still proven to be connected and can be used to access the internet. but the 5G antenna that is attached to the wifi modem can still be connected and can be used to access the internet.
Analisis dan Perancangan U-Slot Patch Single Layer Microstrip Antenna 2,4 GHz pada Teknologi Zigbee Marini, Sri; Asrika, Sukwati Dewi; Handayani, Dwipa; Mhammadin, Habib
JREC (Journal of Electrical and Electronics) Vol 8 No 1 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i1.2204

Abstract

The antenna is the most important part in a wireless communication system. Microstrip one type of antenna that has practical size and dimensions that are simple and easy to fabricate. In this research, we designed and analyzed two slit single layer microstrip antennas for Zigbee technology applications that operate in the 2.4 GHz band. Today, this application has become important for everyday use in industry and home automation, in small areas due to low power requirements for operation and long battery life. The antenna is built on FR-4 epoxy substrate with a thickness of 1.6 mm and εr = 4.4. Antennas operating at 2.4 GHz Resonance frequency have a VSWR value of 1.8 and a Returnloss value of -11 dB with a Vertical radiation pattern, resulting in a narrow impedance bandwidth that can protect the Antenna against interference from other applications in the ISM band. The antenna produced has a patch size of 5.2 cm × 5.2 cm2 with a slit distance of 1 mm. Antennas have advantages in simple design, narrow bandwidth, and their compact size and ease of publication, the test results of the parameters-Parameters, the antenna has met the qualifications of a good antenna standard for zigbee technology.
PELATIHAN LSM PERPUSTAKAAN BJ SCHOOL BERBASIS WEB PADA YAYASAN BAITUL JIHAD BEKASI Samsiana, Seta; Supratno, Setyo; Hasad, Andi; Marini, Sri; Sylviana, Rika; Rakhman, Taufiqur
DEVOSI Vol 2 No 2 (2021): Devosi Jurnal Pengabdian Masyarakat
Publisher : LPPM Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/devosi.v2i2.3002

Abstract

The progress of the library automation system (Library Management System) in the library has now been carried out, especially during a pandemic that requires maintaining distance and face-to-face contact. Starting from that thought, the UNISMA community service team is interested in holding library NGO (Library Management System) training activities Web-based BJ School. This BJ Scholl library website serves to present various information on books, journals and magazines, history and school vision and mission, member data, online book lending and book return data. Apart from the web, it also displays a link feature with several online libraries from several agencies. The training was carried out offline for 1 day and continued with online discussions. The training begins with the introduction of several topics about the website, followed by downloading and installation. Prior to the training, 100% of the participants had never created a website, either with wordpress or with other applications. And after the training, 60% of the participants have been able to apply website creation for their library. Some of the participants were constrained by a slow network and computer damage, so they were late in following the material given. All participants stated that this training was very useful.
Perancangan Antena Super J-Pole 146 MHz Band Radio Amatir Sri Marini; Muhammad Amin Bakri; Dewangga Wicaksono
InComTech : Jurnal Telekomunikasi dan Komputer Vol 10, No 3 (2020)
Publisher : Department of Electrical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/incomtech.v10i3.8866

Abstract

Komunikasi radio merupakan komunikasi yang banyak manfaatnya dan sampai saat ini masih tetap digunakan dalam berbagai kondisi. Komunikasi dengan menggunakan transceiver rig maupun Handy Talky (HT), memiliki kelebihan dapat berkomunikasi tanpa mengenal batasan medan.  Untuk kebutuhan komunikasi yang berpindah-pindah, antena harus mudah dalam bongkar pasang, sehingga mendukung komunikasi radio tersebut. Penelitian ini merancang dan mengimplementasikan Antena Super J-Pole dengan penambahan variasi elemen setengah gelombang dan stub seperempat gelombang. Antena Super J-Pole bepola radiasi omnidirectional, tidak memerlukan groundplane, desain yang sederhana, memiliki jangkauan yang jauh dan dapat diterapkan untuk bermacam-macam perangkat radio komunikasi. Perancangan Antena menggunakan aplikasi Software CST StudioSuite 2018 serta material pipa aluminium dengan proses penyambungan overlap sehingga mudah untuk bongkar pasang, Antena bekerja pada band frekuensi VHFdi 144 MHz-148 MHz, dengan frekuensi center 146 MHZ menghasilkan bandwidth sebesar 10,96%. Antena ini memiliki nilai S-parameter -23,13 dB, VSWR 1,15 dan Gain 4,239 dB serta pola radiasi omnidirectional dengan jangkauan komunikasi sejauh 3,1 km.
WORKSHOP PEMBUATAN MEDIA BELAJAR POWERPOINT, MENTIMETER DAN YOUTUBE BAGI GURU SMK WIDYA NUSANTARA BEKASI Seta Samsiana; Rahmadya Trias Handayanto; Setyo Supratno; Andi Hasad; Sri Marini; Rika Sylviana; Taufiqur Rakhman; Aeri Sujatmiko
DEVOSI Vol 3 No 2 (2022): Devosi Jurnal Pengabdian Masyarakat
Publisher : LPPM Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/devosi.v3i2.4583

Abstract

This training provides several materials related to efforts to develop interactive media so that the learning provided becomes more communicative, increasing the interest and quality of student learning, including Video Learning Presenter View Recoder Ms. Power Point, Use of Mentimeter Interactive Media, Uploading Learning Media on Youtube. The purpose of abdimas activities is to introduce several types of learning media that can be an additional reference of knowledge in SMK Widya Nusantara Bekasi in the implementation of teaching and learning activities that are still carried out online. This is a real step from US to improve the ability of teachers to create interactive learning media independently.
ANTENA MIKROSTRIP PATCH SLOT RADIATOR RECTANGULAR DENGAN DUA PENCATUAN UNTUK APLIKASI SATELITE MOBILE COMMUNICATION Sri Marini; Hendarman Hendarman; Sukwati Dewi Asrika
JURNAL REKAYASA INFORMASI Vol 7 No 2 (2018): JURNAL REKAYASA INFORMASI
Publisher : PROGRAM STUDI SISTEM INFORMASI INSTITUT SAINS DAN TEKNOLOGI NASIONAL (ISTN)

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Abstract

Kemajuan teknologi satelit terus berkembang sejalan dengan kebutuhan akan akseskomunikasi dan informasi. Untuk menunjang teknologi Satelit dibutuhkan antena dapat menerima frekuensi ≥ 10 GHZ dan berpolarisasi circular yang sekaligus ringkas untuk mendukung komunikasi bergerak. Salah satu jenis antena yang dapat menunjang teknologi Satelit adalah antena mikrostrip. Jenis antena ini memiliki beberapa keunggulan terutama pada rancangan antenanya yang tipis, kecil, ringan dan dapat diterapkan ke dalam Microwave Integrated Circuit (MICs). perancangan antena mikrostrip dua pencatuan menjadi kebutuhan perangkat Satelite mobile communication yang membutuhkan transfer data besar namun harus dapat tetap bergerak (mobile), seperti teknologi sistem navigasi, Sistem Pemetaan wilayah dan penentu posisi. Untuk mendukung penelitian di bidang satelite mobile communication maka dirancang Antena mikrostrip ukuran kecil . Pada penelitian ini merancang dan merealisasi antena mikrostrip yang digunakan untuk aplikasi Satelite mobile communication. Perancangan dengan proses perhitungan untuk memperoleh dimensi dari antena, kemudian dilakukan simulasi dengan menggunakan software dan optimasi untuk mendapatkan dimensi antena yang akan menghasilkan karakteristik yang diinginkan. Dengan Metode dua pencatuan mendapatkan pola radiasi omnidirectional dan gain besar. Setelah mendapatkan dimensi antena selanjutnya melakukan realisasi antena. Setelah itu dilakukan pengukuran parameter antena yang meliputi impedansi, frekuensi kerja, VSWR, gain, pola radiasi dan polarisasi. Realisasi Prototype menghasilkan antena mikrostrip yang dapat bekerja pada frekuensi 17 Ghz nilai VSWR 1,1 berpola pancar directional dan 2,4 Ghz nilai VSWR 1,2 berpolarisasi circular/Omnidirectional.Kata Kunci: Antena mikrostrip, Dua pencatuan, Single layer, Satelite mobile communication
PERANCANGAN ANTENA MIKROSTRIP PATCH DOUBLE LAYER BERFREKUENSI 2,4 GHZ UNTUK TEKNOLOGI ZIGBEE Marini, Sri; Supratno, Setyo -; Pitaloka, Habibah Fiola
Journal of Energy and Electrical Engineering Vol 5, No 2: April 2024
Publisher : Teknik Elektro Universitas Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37058/jeee.v5i2.10572

Abstract

Co-Authors A. Hafid Paronda Abdul Hafid Paronda Abdul Hafid Paronda Aeri Sujatmiko Andi Hasad Andi Hasad Asrika, Sukwati Dewi Dewangga Wicaksono Diky Rismana, Diky Dwipa Handayani Faisal Piliang Hendarman Hendarman Lidemar Lidemar Mhammadin, Habib Muhammad Amin Bakri Muhammad Amin Bakri Muhammad Ilyas Sikki Ninik Paryati Nurul Hidayat NURUL HIDAYAT Pambudi, Trio Pitaloka, Habibah Fiola Rahmadya Trias Handayanto Rakhman, Taufiqur Rika Sylviana Rika Sylviana Rizky Abdul Rachman Seta Samsiana Seta Samsiana Setyo Supratno Sukwati Dewi Asrika Sukwati Dewi Asrika Sunaryo Sunaryo Taufiqur Rakhman Taufiqurahman Trio Pambudi Waridhah, Sunilam