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Simulasi Perjalanan Harian Pegawai Unsyiah Untuk Efisiensi Waktu Keberangkatan Terbaik Berdasarkan Model Lalu Lintas Kendaraan Elizar Elizar; Afdhal Afdhal
Jurnal Rekayasa Elektrika Vol 11, No 5 (2015)
Publisher : Universitas Syiah Kuala

High traffic densitiy becomes one of a big problem of transportation in many big developing cities in Indonesia. The growth number of vehicles relatively much higher if compared to the growth of road infrastructure. Banda Aceh as a central city of Aceh Province are also facing moreless the same transportation problem,where traffic becomes very usual especially in peak hour in the morning when many people start their activity. It also happened in the afternoon when most of Banda Aceh people especially the one who work as a government servant going back from work. This research is trying to analyze one of the case of daily going to work travel route of Unsyiah administration staf. The result is very important to analyze the best departure time for the staff to minimize travel time. This research have developed a simulation model using an IT technology based on vehicle traffic mobility model. The simulation offered the fastest travel time solution with the best departure time to arrive at the destination by avoiding morning peak time traffic.

Kombinasi Waktu Sinkronisasi dan Nilai Salt untuk Peningkatan Keamanan pada Single Sign-On Rizal Munadi; Zuhar Musliyana; Teuku Yuliar Arif; Afdhal; Syahrial
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 5 No 3: Agustus 2016
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1026.358 KB)

Single sign-on (SSO) is a session authentication process that allows a user to login by using user registered identity and password in order to access appropriate applications. The authentication process takes the user in to login for all the applications they have been given rights to and eliminates further prompts when they switch applications during a particular session. Its implementation will provide a reduction of password burden to access many applications for every login process. Ease of access through a single account needs to be addressed carefully to ensure the authentication credentials that are not scattered and known by others. Currently, there are several open source SSO authentication methods available. However, the use of existing authentication methods is still vulnerable to attack, such as Man-In-The-Middle. In this study, SSO authentication algorithm using One-Time Password (OTP) is proposed using a combination of time synchronization and salt value. These combinations are used to verify user session while accessing any application with SSO mechanism. The results show that the proposed OTP algorithm can handle SSO authentication process in good fashion and also protect from Man-In-The-Middle Attack.

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v11i2.2242

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.

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v11i1.1994

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v10i4.1110

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.

Simulasi Perjalanan Harian Pegawai Unsyiah Untuk Efisiensi Waktu Keberangkatan Terbaik Berdasarkan Model Lalu Lintas Kendaraan Elizar Elizar; Afdhal Afdhal
Jurnal Rekayasa Elektrika Vol 11, No 5 (2015)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v11i5.2402

High traffic densitiy becomes one of a big problem of transportation in many big developing cities in Indonesia. The growth number of vehicles relatively much higher if compared to the growth of road infrastructure. Banda Aceh as a central city of Aceh Province are also facing moreless the same transportation problem,where traffic becomes very usual especially in peak hour in the morning when many people start their activity. It also happened in the afternoon when most of Banda Aceh people especially the one who work as a government servant going back from work. This research is trying to analyze one of the case of daily going to work travel route of Unsyiah administration staf. The result is very important to analyze the best departure time for the staff to minimize travel time. This research have developed a simulation model using an IT technology based on vehicle traffic mobility model. The simulation offered the fastest travel time solution with the best departure time to arrive at the destination by avoiding morning peak time traffic.

Hubungan antara Sistem Zonasi Sekolah dengan Hasil Belajar Geografi Siswa Kelas XI IPS di SMA N 1 Tualang Yahya, Rafiki Rahmat; Afdhal, Afdhal
MASALIQ Vol 4 No 4 (2024): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i4.3186

One of the new policies issued by the Ministry of Education and Culture regarding the Admission of New Students (PPDB) is the zoning system. This policy is one of the government's efforts to equalize education. This also directs students to register at the school closest to their domicile. However, at SMA N 1 Tualang there are several phenomena that emerge which create a relationship between the school zoning system and geography learning outcomes. This research aims to determine the relationship between the school zoning system and the geography learning outcomes of class XI IPS students at SMAN 1 Tualang, Siak Regency. The method used in this research is quantitative with a correlational research type. Based on hypothesis testing using the one-way test category with a significance level of 5%, the results showed that the zoning system had a positive effect on the geography learning outcomes of class Students have close and positive relationships. With research results showing that the zoning system influences student learning outcomes, therefore the zoning system needs to be improved.

Value Chain Analysis In The Marble Production Process In Aceh Selatan Polytechnic. Afdhal, Afdhal; Sastra, Hasan Yudhie; Husni, Husni
International Journal of Multidisciplinary Sciences and Arts Vol. 3 No. 4 (2024): International Journal of Multidisciplinary Sciences and Arts, Article October 2
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/ijmdsa.v3i4.5280

Potential rocks such as granite and marble are easy to find in mining products in South Aceh. South Aceh granite and marble, which have high quality, provide benefits and have great potential to be developed. Currently, the use of marble is made into various crafts carried out by workshop the South Aceh PolytechnicCurrent market competition requires a value-added from a product, so the purpose of this study is to conduct a supply chain analysis in the marble production process at the South Aceh Polytechnic. Increasing value chain to marble products is expected to contribute to business development significantly. This research focused on the plan and source stages. The results found that activities in marble production at the South Aceh Polytechnic lack agreements with third parties as both marble supply agents and cooperation agreements with packaging companies, so the marble handicrafts produced have not produced a product. Ready to compete in the market.

Sistem Pemantau dan Pengaman Hama Babi Hutan Berbasis IoT pada Lahan Ubi Kayu di Jantho Baru - Aceh Besar Adriman, Ramzi; Afdhal, Afdhal; Umran, Munzir; Lessy, Dien Taufan; Fonna, Syarizal
PESARE: Jurnal Pengabdian Sains dan Rekayasa Vol 3, No 1 (2025): Februari 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/pesare.v3i1.44814

Wild boars pose a significant threat to cassava farmers in the Jantho Baru area, Aceh Besar district, as they can reduce agricultural productivity. The region's location in hilly terrain near a protected forest makes this challenge unavoidable. An initial assessment with farmer groups (partners) identified the need for a monitoring and protection system to manage wild boar infestations in cassava farms. The partner's land, situated 42 km from the Faculty of Engineering, Universitas Syiah Kuala, spans 5 hectares in a hilly area adjacent to the protected forest.To address this issue, an IoT-based technology solution is proposed for monitoring and safeguarding cassava farms. This system includes video cameras that allow farmers to remotely monitor their land via smartphones. Additionally, security measures such as electric fences and speaker outputs, controlled through an Android-based mobile application, are implemented. The system is powered by renewable solar energy through the use of solar panels. The application of this technology is expected to reduce crop losses caused by wild boars, ultimately improving farm productivity.

Image Segmentation Performance using Deeplabv3+ with Resnet-50 on Autism Facial Classification Melinda, Melinda; Aqif, Hurriyatul; Junidar, Junidar; Oktiana, Maulisa; Binti Basir, Nurlida; Afdhal, Afdhal; Zainal, Zulfan
JURNAL INFOTEL Vol 16 No 2 (2024): May 2024
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/infotel.v16i2.1144

In recent years, significant advancements in facial recognition technology have been marked by the prominent use of convolutional neural networks (CNN), particularly in identification applications. This study introduces a novel approach to face recognition by employing ResNet-50 in conjunction with the DeepLabV3 segmentation method. The primary focus of this research lies in the thorough analysis of ResNet-50's performance both without and with the integration of DeepLabV3+ segmentation, specifically in the context of datasets comprising faces of children on the autism spectrum (ASD). The utilization of DeepLabV3+ serves a dual purpose: firstly, to mitigate noise within the datasets, and secondly, to eliminate unnecessary features, ultimately enhancing overall accuracy. Initial results obtained from datasets without segmentation demonstrate a commendable accuracy of 83.7%. However, the integration of DeepLabV3+ yields a substantial improvement, with accuracy soaring to 85.9%. The success of DeepLabV3+ in effectively segmenting and reducing noise within the dataset underscores its pivotal role in refining facial recognition accuracy. In essence, this study underscores the pivotal role of DeepLabV3+ in the realm of facial recognition, showcasing its efficacy in reducing noise and eliminating extraneous features from datasets. The tangible outcome of increased accuracy of 85.9% post-segmentation lends credence to the assertion that DeepLabV3+ significantly contributes to refining the precision of facial recognition systems, particularly when dealing with datasets featuring faces of children on the autism spectrum.

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