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All Journal Bulletin of Electrical Engineering and Informatics Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Kitektro Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) JURNAL PENDIDIKAN TAMBUSAI Jurnal Kreativitas PKM JURNAL MUTIARA NERS International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Jurnal Nasional Teknik Elektro dan Teknologi Informasi Journal Keperawatan YASIN: Jurnal Pendidikan dan Sosial Budaya MASALIQ: Jurnal Pendidikan dan Sains JURNAL PARADIGMA: Journal of Sociology Research and Education International Journal of Multidisciplinary Sciences and Arts Jurnal Rekayasa elektrika Jurnal Restorative Al-Bayyinah PESARE: Science and Engineering Service Journal Society Jurnal Pengabdian Masyarakat Mandira Cendikia (JPKM-MC) Mangabdi: Journal of Community Engagement in Religion, Social, and Humanities

Afdhal Afdhal

Universitas Syiah Kuala

Author-ID : 220562

Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture 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 Library & Information Science Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Sistem Embedded Cerdas Menggunakan Logika Fuzzy Untuk Efisiensi Konsumsi Energi Listrik Adriman, Ramzi; Asfianda, Muhammad; A, Afdhal; Away, Yuwaldi
Jurnal Ilmiah Teknik Elektro Komputer dan Informatika Vol 4, No 1 (2018)
Publisher : Universitas Ahmad Dahlan

Bertambahnya pertumbuhan industri, penggunaan alat elektronik untuk kebutuhan kantor dan rumah tangga menjadi kontribusi peningkatan konsumsi energi pada setiap tahunnya sehingga berpotensi menimbulkan pemborosan pemakaian energi yang berdampak pada lingkungan dan pemanasan global. Pengendalian konsumsi energi listrik oleh pemerintah dan organisasi peduli ingkungan melalui kampanye kesadaran hemat energi pada masyarakat dinilai belum cukup efektif dan efisien. Penelitian ini membuat purwarupa sistem embedded cerdas yang dapat mengendalikan penggunaan peralatan elektronik menggunakan metode Logika Fuzzy sehingga pengendalian konsumsi energi listrik dapat dilakukan secara otomatis. Sistem ini dirancang dengan menggunakan mikrokontroller Arduino Nano yang diintegrasikan dengan sensor suhu, sensor gerak dan modul Real Time Clock (RTC). Pada tahap pengujian kinerja, sistem ini dihubungkan dengan berbagai peralatan elektronik seperti pendingin ruangan, lampu, dan tempat penghubung arus listrik (stopkontak). Berdasarkan hasil pengujian dapat disimpulkan bahwa penerapan sistem embedded cerdas mampu mengendalikan konsumsi energi dan menghemat energi listrik hingga 28,71%.

Image investigation using higher moment statistics and edge detection for recognizing abnormal skin Afdhal Afdhal; Zulfikar Zulfikar; Zulhelmi Zulhelmi; Teuku Yuliar Arif
Bulletin of Electrical Engineering and Informatics Vol 9, No 1: February 2020
Publisher : Institute of Advanced Engineering and Science

This paper discusses the recognition of skin abnormalities by investigating the images using high-level statistics and edge detection. Six images of skin diseases were analyzed using several statistical parameters, including high-level moments such as skewness and kurtosis. In comparison, some images from other categories such as animal, architecture, art, vehicle, food, people, and scenery have been analyzed as well. The results were compared to skin disease images. It is expected that the general pattern of statistical parameters can distinguish skin images against images from other categories. MatLab is used as a medium to calculate the values of statistical parameters. The mean and median of the skin disease image are much larger. Meanwhile, the standard deviation is the smallest compared to other categorical images. Almost all the analyzed images close to symmetry. Nearly all images category are distributed more leaning to the left, except for the images of the art category, which is slightly more leaning to the right. Moreover, the edge detection process has been done using the Sobel algorithm. The result, however, cannot clearly distinguish a skin's abnormality. This difficulty is because of the lack of accuracy in selection the intensity.

ANALISIS TINGKAT KINERJA JARINGAN WIRELESS IEEE 802.11N MENGGUNAKAN MIKROTIK Dhiaul Qadri; Teuku Yuliar Arif; Afdhal Azmi
Jurnal Komputer, Informasi Teknologi, dan Elektro Vol 6, No 2 (2021)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/kitektro.v6i2.21848

Jaringan wireless merupakan sekumpulan komputer yang saling terhubung antara satu komputer dengan komputer yang lain sehingga menjadi sebuah jaringan komputer. Jaringan ini menggunakan media udara/gelombang untuk mentransmisikan data. Pada suatu jaringan, kecepatan dipengaruhi oleh perangkat yang digunakan oleh user dan perangkat yang menjadi AP, jarak dan faktor ruangan. Pada penelitian ini mencoba melihat kinerja jaringan wireless IEEE 802.11n. Penelitian ini dilakukan halaman rumah dengan menggunakan 4 laptop, 3 sebagai client dan 1 laptop sebagai server dengan 1 router Mikrotik sebagai access point (AP). Pengujian ini dilakukan mencari nilai rata-rata Uplink dan Downlink dari Throughput, Jitter dan Packet Loss dengan pengujian dengan 4 pengujian dengan jarak berbeda-beda, yaitu 5 meter, 10 meter, 15 meter dan campuran menggunakan tool Jperf dengan paket UDP yang telah disesuaikan oleh IEEE 802.11N, waktu selama 50 detik dan bandwidth default. Dari hasil pengujian yang telah dilakukan client dengan jarak 5 meter dari AP memiliki throughput 1 Mbps, jitter 2.536 ms dan packet loss 0%, Sedangkan pada saat jarak 15 dan campuran packet loss mengalami kehilangan paket yang lebih besar yaitu pada data rate 150 mengalami 33.59% kehilangan data dan jarak campuran mengalami 30.56% kehilangan data, sehingga paket yang dikirim tidak sesuai dari data yang sebelumnya. Dari pengujian ini juga bisa dilihat juga perangkat dan ruangan yang memiliki hambatan sangat berpengaruh kualitas sinyal internet tersebut. Kata kunci: server, client, Throughput, AP, Bandwidth, Packet Loss, Jitter, UDP, Jaringan wireless, MikroTik dan Jperf.

Sistem Embedded Cerdas Menggunakan Logika Fuzzy Untuk Efisiensi Konsumsi Energi Listrik Ramzi Adriman; Muhammad Asfianda; Afdhal A; Yuwaldi Away
Jurnal Ilmiah Teknik Elektro Komputer dan Informatika Vol 4, No 1 (2018)
Publisher : Universitas Ahmad Dahlan

Pendeteksian Septoria pada Tanaman Tomat dengan Metode Deep Learning berbasis Raspberry Pi Kahlil Muchtar; Chairuman; Yudha Nurdin; Afdhal Afdhal
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 5 No 1 (2021): Februari 2021
Publisher : Ikatan Ahli Informatika Indonesia (IAII)

much needed to meet the needs of both industry and households. However, tomato plants still require serious handling in increasing the yields. Data from the Central Bureau of Statistics shows that the number of tomatoes produced is not in accordance with a large number of market demands, resulting from the decrease of tomato yields. One of the obstacles in increasing tomato production is that the crops are attacked by septoria leaf spot disease due to the fungus or the fungus Septoria Lycopersici Speg. Most farmers have limited knowledge of the early symptoms, which are not obvious, and also facing difficulty in detecting this disease earlier. The problem has been causing disadvantages such as crop failure or plant death. Based on this problem, a study will be conducted with the aim of designing a tool that can be used to detect septoria leaf spot disease based on deep learning using the Convolutional Neural Network (ConvNets or CNN) model, where an algorithm that resembles human nerves is one of the supervised learning and widely used for solving linear and non-linear problems. In addition, the researcher used the Raspberry Pi as a microcontroller and used the Intel Movidius Neural Computing Stick (NCS) which functions to speed up the computing process so that the detection process is easier because of its portable, fast and accurate nature. The average accuracy rate is 95.89% with detection accuracy between 84.22% to 100%.

Aplikasi Pengaruh Quality Of Service (Qos) Video Conference Pada Trafik H.323 Dengan Menggunakan Metode Differentiated Service (Diffserv) Taufiq Abdul Gani; Rahmad Rahmad; Afdhal Afdhal
Jurnal Rekayasa Elektrika Vol 9, No 2 (2010)
Publisher : Universitas Syiah Kuala

Dewasa ini, penggunaan teknologi conferenceberbasis IP dengan menggunakan protokol H.323. Meskidemikian, pada kenyataannya kualitas teknologi videoconference yang baik belum terjamin. Untuk itu, perlusebuah pelayanan atau service yang dapat memberikanprioritas paket dan menekan gangguan dalam lalu lintasjaringan conference. Salah satu layanan tersebut yaituDifferentiated Service (Diffserv). Layanan ini dibuat untukmembagi aliran IP ke dalam kelas-kelas yang akan langsungditransmisikan dengan cara menentukan kapasitasbandwidth, klasifikasi trafik, pemilihan mekanisme antrian(queueing) dan traffic shapping. Pada penelitian ini, telahdiaplikasikan Quality of Service (QoS) videoconference padatrafik H.323 dengan menggunakan metode DifferentiatedService (DiffServ) dan berhasil mengukur pengaruhbesarnya throughput paket ketika jaringan dalam keadaancongested atau sesak serta dibebankan delay juga jitter.Semakin besar delay dan jitter yang diberikan, semakin besarketidakstabilan throughput yang dihasilkan. Pada trafikcongested, QoS memberikan prioritas pada paket H.323sehingga throughput yang dihasilkan mendekati kondisitanpa sesak dibandingkan paket-paket lain.

Pemodelan dan Simulasi VANETs Menggunakan Federated Mobility Model; Sebuah Artikel Tinjauan Afdhal Afdhal
Jurnal Rekayasa Elektrika Vol 11, No 2 (2014)
Publisher : Universitas Syiah Kuala

The emergence of Vehicular Ad-hoc Networks (VANETs) as part of the Intelligent Transportation Systems (ITS) technology development was expected to become an advanced method to solve the transportation system problem. The implementation of VANETs is expected to provide a new solution for traffic management strategy. Its main targets is to continue prioritizing traffic safety and to prevent the accidents on the roads. One of the VANETs problems before being implemented in the real world is the degree of freedom of the vehicle's mobility that limited by the road topologies. Various modellings and simulations have been performed to produce the most realistic mobility model. However, those models had become new paradigms due to various factors that limited them. The presence of the federated mobility model as an approach for traffic mobility modeling is considered to be able to provide more realistic and accurate VANETs simulation. Therefore, this article presents some brief reviews and contrast a number of the simulation and mobility models that have been used widely as compared to the federated mobility models that have developed until the present. The article's objective is to facilitate a better understanding of the traffic mobility modeling for the VANETs simulation that started from the interaction process until the integration between simulators. The understanding of the traffic mobility models will complement the knowledge that enable to perform the simulation of the VANETs implementation approaching the real conditions.

Pengaturan Pemakaian Bandwidth Menggunakan Mikrotik Bridge Afdhal Afdhal; Taufiq A. Gani; Haimi Ardiansyah
Jurnal Rekayasa Elektrika Vol 9, No 2 (2010)
Publisher : Universitas Syiah Kuala

Permasalahan dalam sebuah jaringan komputeradalah proses pengiriman data lambat, rusak dan tidaksampai ke tujuan. Permasalahan ini diakibatkan belumadanya manajemen penggunaan bandwidth. Permasalahanini sering diselesaikan dengan melakukan perbaikan dan re-konfigurasi jaringan dari awal serta membuat penggunaanbandwidth yang lebih teratur. Namun, pada jaringan yangsudah kompleks, re-konfigurasi dari awal bukan hal mudahdan memakan waktu lama serta menghabiskan banyakbiaya. Oleh karena itu, sebuah jaringan memerlukanmanajemen pemakaian bandwidth yang baik, sehinggadapat mengatur lalu-lintas data tepat sasaran dalam waktucepat dan efisien, tanpa mere-konfigurasi jaringan dari awal.Dalam penelitian ini peneliti membuat desain topologimenggunakan Mikrotik sebagai bridge denganmenempatkannya antara server dengan client untukmenjembatani proses pertukaran data. Desain ini dibuatuntuk membandingkan pemakaian bandwidth pada jaringanyang menggunakan Mikrotik dengan jaringan tanpaMikrotik. Penelitian ini bertujuan untuk meneliti pengaruhpenggunaan Mikrotik Bridge terhadap manajemenpemakaian bandwidth dengan melakukan analisa terhadapbesar pemakaian bandwidth yang diterima client danmembuat perbandingan grafis berdasarkan hasil hitunganstandar deviasi. Dari hasil penelitian dapat diketahui bahwapenempatan Mikrotik Bridge dapat mengatur pemakaianbandwidth, sehingga pertukaran data menjadi lebih baik danpemakaian bandwidth dapat lebih optimal, tanpa mengubahkonfigurasi jaringan sebelumnya.

IEEE 802.11ac sebagai Standar Pertama untuk Gigabit Wireless LAN Afdhal Afdhal; Elizar Elizar
Jurnal Rekayasa Elektrika Vol 11, No 1 (2014)
Publisher : Universitas Syiah Kuala

WLAN is a technology that currently has been used widely. This technology is considered as a data transferring media technology within the LAN/MAN. To ensure that WLAN technology can be used widely in the whole world, the IEEE has set a standard known as 802.11 to be an international standard for the WLAN technology. This standard was appeared in 1997, and has been revised and improved for several times. This improvement is done to anticipate the rapidly grown WLAN market as well as to keep this technology remains effective, efficient, and reliable at any time. At the beginning of 2014, the IEEE has set 802.11ac-2013 as a new standard for WLANs that operate below 6 GHz to achieve a data rate for up to 7 Gbps. The purpose of this article is to describe comprehensively the IEEE 802.11ac standard as a result of recent changes to the regulatory for WLAN technology which is known as the first standard issued by the IEEE for the gigabit WLANs. This article discusses the goals and objectives to be achieved by 802.11ac standard as well as the parts that have been enhanced significantly both in its PHY and MAC layers. This article will also contrast the differences between the 802.11ac standard and previous WLAN standards. Finally it will also explain the level of compatibility and interoperability of 802.11ac standards with some of previous WLAN standard.Keywords: IEEE, 802.11, 802.11ac, Gigabit WLAN

Studi Perbandingan Layanan Cloud Computing Afdhal Afdhal
Jurnal Rekayasa Elektrika Vol 10, No 4 (2013)
Publisher : Universitas Syiah Kuala

In the past few years, cloud computing has became a dominant topic in the IT area. Cloud computing offers hardware, infrastructure, platform and applications without requiring end-users knowledge of the physical location and the configuration of providers who deliver the services. It has been a good solution to increase reliability, reduce computing cost, and make opportunities to IT industries to get more advantages. The purpose of this article is to present a better understanding of cloud delivery service, correlation and inter-dependency. This article compares and contrasts the different levels of delivery services and the development models, identify issues, and future directions on cloud computing. The end-users comprehension of cloud computing delivery service classification will equip them with knowledge to determine and decide which business model that will be chosen and adopted securely and comfortably. The last part of this article provides several recommendations for cloud computing service providers and end-users.

Co-Authors Adriman, Ramzi Adriman, Ramzi Agustia, Nofrita Ainal Mardhiah Akbar Akbar Alfarizi, Khalis Amallya, Rania Apriliani, Nafa Dwi Asfianda, Muhammad Away, Yuwaldi Chairuman Desiana Desiana, Desiana Dhiaul Qadri Elizar Elizar Fitri, Rahmadini Awlya Fitriadi, Nuzuli Fonna, Syarizal Gani, Azhar Abdul Haimi Ardiansyah Husni Husni imam maulana, imam Isneini Isneini, Isneini Jamni, Teuku Johanda, Azra Sastya Junita Putri, Siska Kahlil Muchtar Khaira, Fadhilatul Lalihun, Ishaka Leonardo Gunawan, Leonardo Lessy, Dien Taufan Lindawati Lindawati Litaay, Simona Christina Henderika Makaruku, Nathalia Debby Manuputty, Feky Manuputty, Feky M. L. Muhammad Asfianda Munazar Munazar Mutiara Dwi Sari Nugroho, Erlangga Galih Zulva Nurleli, Nurleli Pamudi, Berwi Fazri Perkasa, Rilis Eka Pratama, Irvan Putra Rahmad Rahmad Rapitos Sidiq Riani, Eka Oktarina Rieuwpassa, Sarmalina Rimadeni, Yeni Ritawati Ritawati Rizal Munadi Rukman, Auliah Andika Rumihin, Ony Frengky Rusyda, Arina Ilfa Santosa, Sigit Puji Sari, Asrianti Resita Sastra, Hasan Yudhie Siregar, Yuanita Aprilandini Sitio, Roma SYAHRIAL SYAHRIAL Syahrial, Syahrial Syamsuddin, Asniah Syamsuri, Andi Santri Taufik Taufik Taufiq A. Gani Teuku Yuliar Arif Teuku Yuliar Arif Umran, Munzir Wirda Hayati Wiwit Aditama Yahya, Rafiki Rahmat Yohana, Siti Yudha Nurdin Yuwaldi Away Zalnofri, Zalnofri Zuhar Musliyana Zuhar Musliyana, Zuhar Zulfikar Zulfikar Zulhelmi .

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