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All Journal International Journal of Electrical and Computer Engineering Gaung Informatika Jurnal Momentum TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Informatika Jurnal technoscientia Jurnal Teknologi Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) PROSIDING SENATEK FAKULTAS TEKNIK UMP KACANEGARA Jurnal Pengabdian pada Masyarakat CARADDE: Jurnal Pengabdian Kepada Masyarakat MATRIK : Jurnal Manajemen, Teknik Informatika, dan Rekayasa Komputer Dharma Bakti Waskita: Jurnal Pendidikan Nilai dan Pembangunan Karakter Indonesian Physical Review Indonesian Journal of Electrical Engineering and Computer Science International Journal of Applied Business and Information Systems JURNAL TEKNOLOGI TECHNOSCIENTIA JNANALOKA Journal of Applied Data Sciences JPM: JURNAL PENGABDIAN MASYARAKAT Jurnal Sains Teknologi dalam Pemberdayaan Masyarakat Rambideun : Jurnal Pengabdian Kepada Masyarakat ADMA: Jurnal Pengabdian dan Pemberdayaan Masyarakat IJCOSIN : Indonesian Journal of Community Service and Innovation Techno Jurnal Atma Inovasia Indonesian Journal of Community Empowerment and Service Jurnal INFOTEL Inovasi Jurnal Pengabdian Masyarakat (IJPM) Jurnal Teknologi
Emy Setyaningsih
Unknown Affiliation
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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PERANCANGAN BLADE AIRFOIL DENGAN BANTUAN PROGRAM TRANSFORMASI JOUKOWSKY Rusianto, Toto; Setyaningsih, Emy
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 7 No 1 Agustus 2014
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v7i1.617

Abstract

Design cross section of wind turbine blades with airfoil cross-section can be made from a mathematical approach. The mathematical formula was discussed for airfoil shape from Joukowsky equation, that was developed by Nikolai Zhukovsky Egorovich. The problems would appear if used the Joukowsky equation settlement for design with manual, it could take a long time. The problem solving for the mathematical could use graphic user interfaces (GUI) program and the design for implementation could use computer aided design (CAD) program. The Joukowsky transformation was performed by conformal mapping through the transformation of a complex function from one coordinate system to another, which circle shape was transformed to airfoil shape. Ideal airfoil shape was obtained with observed of the transformation radius and center of the circle.
Survey of Hybrid Image Compression Techniques Emy Setyaningsih; Agus Harjoko
International Journal of Electrical and Computer Engineering (IJECE) Vol 7, No 4: August 2017
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (289.72 KB) | DOI: 10.11591/ijece.v7i4.pp2206-2214

Abstract

A compression process is to reduce or compress the size of data while maintaining the quality of information contained therein. This paper presents a survey of research papers discussing improvement of various hybrid compression techniques during the last decade. A hybrid compression technique is a technique combining excellent properties of each group of methods as is performed in JPEG compression method. This technique combines lossy and lossless compression method to obtain a high-quality compression ratio while maintaining the quality of the reconstructed image. Lossy compression technique produces a relatively high compression ratio, whereas lossless compression brings about high-quality data reconstruction as the data can later be decompressed with the same results as before the compression. Discussions of the knowledge of and issues about the ongoing hybrid compression technique development indicate the possibility of conducting further researches to improve the performance of image compression method.
Image Encryption on Mobile Phone using Super Encryption Algorithm Emy Setyaningsih; Catur Iswahyudi; Naniek Widyastuti
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 10, No 4: December 2012
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v10i4.871

Abstract

Mobile phones have limited memory and computational resources. Modern encryption algorithms such as DES, AES, IDEA uses a complicated and complex algorithm, that are not suitable for image encryption on mobile phones. Necessary, it is tradeoff between speed, security, and flexibility. Problem to be investigated and resolved is how to get the image encryption algorithm which is simple yet safe, with the lightweight and efficient computing. The algorithm developed in this study was super-encryption algorithm that combines Playfair cipher and the Vigenere cipher. The experimental results show the cipher image histogram has a distribution of diversity and a significant difference to the plain image histogram, and frequency of occurrence of each intensity value in the histogram of cipher image is also uneven, which means can not provide clues to do statistical attack. The experimental results also showed a correlation between the elements of the image after encryption has decreased significantly. The average of quality encryption showed that the rate of change of image pixels is high enough so that cipher image difficult to identify. Tests on a cell phone showed that this algorithm requires only small computational resources. This shows that the algorithm is quite effective for image encryption on mobile phones.
SISTEM INFORMASI MONITORING KERETA API BERBASIS WEB SERVER MENGGUNAKAN LAYANAN GPRS Muhammad Andang Novianta; Emy Setyaningsih
Jurnal Momentum ISSN 1693-752X Vol 17, No 2 (2015): Volume 17 No. 2 Tahun 2015
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (744.601 KB)

Abstract

Makalah ini membahas tentang rancangan web base server sebagai sistem pemantaun secara on-line yang memanfaatkan jaringan GSM menggunakan layanan GPRS. Komunikasi server dengan black box (alat pemantau) menggunakan teknologi yang berbasis raw socket (via UPD/TCP). Alat pemantau pada penelitian ini dianggap sebagai client yang terkoneksi ke server, sehingga lokasi koordinat kereta dapat divisualisasikan pada halaman web yang telah dibuat dalam bentuk peta digital menggunakan Google Maps dan marker. Aplikasi ini juga mampu menghasilkan informasi pergerakan kereta api yang terpantau secara on-line dan dapat diunduh serta disimpan dalam format teks pada database. Diharapkan dengan adanya web base, pengguna dapat mengakses alat pemantau dengan menggunakan aplikasi browser yang tertampil pada halaman web melalui PC Client yang terkoneksi ke internet.
ANALISA PEREKAMAN DATA SUARA DARI SISTEM BLACKBOX PADA KERETA API Emy Setyaningsih; M. Andang Novianta
Jurnal Informatika Vol 9, No 1 (2015): Januari
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (584.149 KB) | DOI: 10.26555/jifo.v9i1.a2040

Abstract

            Makalah ini akan membahas tentang penerapan black box pada kereta api yang diadopsi pertama kali pada pesawat, dengan parameter perekam suara hingga waktu simpan kurang dari 1 hari 8 jam pada media penyimpanan SD Card. Tujuan dari pengujian pada makalah ini adalah membandingkan sumber suara terhadap jarak penerima, sebagai parameter perubahan tingkat suara “dB”. Sistem perekaman suara yang akan ditempatkan pada kereta api ini menggunakan modul rangkaian terintregasi WTR010. Voice record WTR010 merupakan modul rangkaian terintegrasi untuk merekam suara sendiri atau pun suara dari file music / video pada komputer dengan sangat mudah. Modul ini bisa merekam suara sendiri dan langsung di simpan ke dalam format audio. Format audio yang disediakan oleh modul voice record adalah format AD4 dan wav. Hasil pengujian modul black box yang diletakkan pada kereta api, dengan mencoba mengucapkan kata  “SAYA”,  suara dapat terekam pada modul perekam suara yang selanjutnya diolah menggunakan ”software sound editor” yang disimpan pada SD Card ber-ekstensi “wav”. Perbandingan sumber suara terhadap jarak penerima dari pengujian didapatkan sebuah persamaan regresi linier  y = -( 31x – 11)  dan R² = 0.972.  Pengujian ini menghasilkan penekanan suara dB dan frekuensi sample Hz yang berbeda.  Kata kunci: black box kereta api, perekaman suara, WTR010
MENGENALI PERILAKU DAN KEPRIBADIAN MANUSIA BERDASARKAN POLA SIDIK JARI MENGGUNAKAN JARINGAN SYARAF TIRUAN Dian Analis; Emy Setyaningsih
Jurnal Informatika Vol 6, No 1: Januari 2012
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1174.438 KB) | DOI: 10.26555/jifo.v6i1.a2784

Abstract

Dewasa ini disiplin ilmu mengenai kecerdasan buatan berkembang pesat melaju bersama kecepatan perkembangan teknologi komputer. Kecerdasan buatan yang dimaksudkan adalah membuat suatu sistem agar komputer bisa berfikir layaknya manusia. Salah satu implementasi kecerdasan buatan adalah pengenalan pola sidik jari, dimana proses pengenalan pola itu sendiri dilakukan dengan melatih komputer agar komputer mempelajari suatu bentuk pola yang dimasukkan dan mampu untuk mengenali bentuk pola yang akan diujikan. Sebagai contoh implementasi pengenalan pola adalah pada bidang psikologi, dimana bentuk pola sidik jari seseorang dapat digunakan untuk mengenali perilaku dan kepribadiannya. Dalam makalah ini penulis mengimplementasikan jaringan syaraf tiruan untuk mengenali perilaku dan kepribadian seseorang berdasarkan pola sidik jari dengan menggunakan metode forward chaining. Sistem ini mampu menganalisis kombinasi pola sidik jari vortex atau sinus berdasarkan pengujian menggunakan jaringan syaraf tiruan dengan prosentase dikenali pola sinus atau vortex lebih besar dari 50%, apabila prosentase terkenali sebagai pola sinus lebih besar daripada prosentase pola vortex, maka pola sidik jari akan terkenali sebagai pola sinus, begitu juga sebaliknya. Selanjutnya aplikasi ini akan menganalisis kombinasi pola sidik jari dengan mencocokkan berdasarkan pohon keputusan, dimana terdapat 32 kombinasi sidik jari yang dikenali untuk menentukan perilaku dan kepribadian dari user. Dalam aplikasi ini terdapat 3 macam informasi yang dapat disajikan yaitu, informasi tentang kepribadian, keberuntungan dan perhatian dengan menggunakan software Delphi 6. Keakuratan proses konsultasi kepribadian pada aplikasi ini sangat tergantung pada input citra sidik jari yang dilakukan oleh pengguna (user).
PERANCANGAN SISTEM PENGAMBILAN KARTU UJIAN ONLINE MENGGUNAKAN FRAMEWORK CODEIGNITER Said -; Emy Setyaningsih; Harmastuti -
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 10 No 1 Agustus 2017
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1914.835 KB) | DOI: 10.34151/technoscientia.v10i1.81

Abstract

Taking the test card is part of the academic system Institut Science & Technology AKPRIND Yogyakarta and is an activity that is always done when the student before the exam. Examination card retrieval system that runs for this still use conventional system. This method is still less effective because students have to queue for a long time and also have to come to the campus directly. The proposed system research aims to facilitate students in the process of taking exam cards. System that will be developed web-based (web based), so that this system can be accessed online using both computer and smartphone devices. Research on the online card retrieval system was developed using Codeigniter (CI), one of the framework used to build a website. The development of web-based applications, CI framework has a very fast performance, easy configuration and complete documentation. This research uses waterfall diagram as research method and MySQL as database processing. Testing system conducted in this study by using black box testing method and testing the questionnaire. Black box testing aims to obtain a set of input conditions that will fully implement all the functional requirements of a program. This test concluded that the built application system can function as expected. While testing the questionnaire is done to know user acceptance or user satisfaction to the quality of the system developed. The results of the questionnaire test showed 80.24% of 82 respondents stated strongly agree that with the Online Card Exam Taking System Using Framework Codeigniter can help and provide convenience for students in the process of taking the test card.
PENYANDIAN CITRA MENGGUNAKAN METODE PLAYFAIR CIPHER Emy Setyaningsih
Jurnal Teknologi Vol 2 No 2 (2009): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknologi Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

INTISARI Playfair Cipher merupakan salah satu metode yang digolongkan dalam kriptogafi klasik yang proses enkripsinya menggunakan pemrosesan dalam bentuk blok-blok yang sangat besar. Metode ini merupakan salah satu cara untuk mengatasi kelemahan metode kriptografi klasik lainnya yang mudah tertebak karena terdapat korespondensi satu-satu antara plainteks dengan cipherteks. Seperti halnya pesan teks dalam menjaga kerahasiaannya, pesan citra juga memerlukan teknik-teknik enkripsi yang sebisa mungkin sederhana tapi sukar dipecahkan. Proses pengamanan pesan dalam bentuk citra dapat dilakukan dengan mengenkripsi citra ke dalam bentuk citra lagi dengan algoritma tertentu. Ini dimungkinkan mengingat sebuah citra dapat direpresentasikan dalam sebuah matriks yang berisi bilangan-bilangan bulat. Pada penelitian ini Playfair Cipher akan diimplementasikan untuk menyandikan citra dengan format bmp 24 bit, yang mempunyai ukuran 256 x 256 pixel. Citra yang akan diujikan terdiri dari 2 jenis citra yaitu citra dengan tingkat kontras yang berbeda serta citra dengan kategori tingkatan detil yang berbeda. Kunci yang digunakan untuk menyandikan citra menggunakan 2 jenis matrik yang mempunyai ordo 16 x 16. Dari hasil pengujian didapatkan bahwa playfair merupakan metode penyandian klasik yang cocok diterapkan untuk citra dengan kualitas yang baik dan pada citra dengan kategori citra detil. Hal ini terlihat dari keacakan intensitas warna pada citra yang telah tersandikan. Selain itu karena matrik kunci yang digunakan ukurannya cukup besar mengakibatkan kriptanalisis akan membutuhkan waktu yang cukup lama untuk menemukan matrik kuncinya, karena terdapat 256! kemungkinan bentuk matrik kunci.
Wavelet-Walsh, Quantization, and Fractal Coding Transformation Methods to Minimize Image Data Size Asriningtias Yuli; Saputro Febri; Setyaningsih Emy
International Journal of Applied Business and Information Systems Vol. 2 No. 2 (2018)
Publisher : Association for Scientific Computing Electrical and Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (372.128 KB) | DOI: 10.31763/ijabis.v2i2.217

Abstract

Digital technology development requires an efficient and fast process, not only in the data transmission but also in the data saving. The digital image is one of the data which is commonly exchanged. However, image data with good quality has rather big size. So that they need to minimize data size to be efficient and fast is badly needed. One of the ways which can be done is to minimize the image data size is data compression. Data compression can be done by minimizing image data redundancy by minimizing the missing information in the digital image. This research proposed the mixing of Wavelet-Walsh, Quantization, and Fractal Coding Transformation Methods to compress image data greyscale so that it has a smaller size but still with good image quality. The test result showed that the average Compression Ratio is 1.32 with the decent reconstruction image result quality that is average value PSNR = 43.31 dB
PERANCANGAN SISTEM PENGAMBILAN KARTU UJIAN ONLINE MENGGUNAKAN FRAMEWORK CODEIGNITER Said -; Emy Setyaningsih; Harmastuti -
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 10 No 1 Agustus 2017
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v10i1.81

Abstract

Taking the test card is part of the academic system Institut Science & Technology AKPRIND Yogyakarta and is an activity that is always done when the student before the exam. Examination card retrieval system that runs for this still use conventional system. This method is still less effective because students have to queue for a long time and also have to come to the campus directly. The proposed system research aims to facilitate students in the process of taking exam cards. System that will be developed web-based (web based), so that this system can be accessed online using both computer and smartphone devices. Research on the online card retrieval system was developed using Codeigniter (CI), one of the framework used to build a website. The development of web-based applications, CI framework has a very fast performance, easy configuration and complete documentation. This research uses waterfall diagram as research method and MySQL as database processing. Testing system conducted in this study by using black box testing method and testing the questionnaire. Black box testing aims to obtain a set of input conditions that will fully implement all the functional requirements of a program. This test concluded that the built application system can function as expected. While testing the questionnaire is done to know user acceptance or user satisfaction to the quality of the system developed. The results of the questionnaire test showed 80.24% of 82 respondents stated strongly agree that with the Online Card Exam Taking System Using Framework Codeigniter can help and provide convenience for students in the process of taking the test card.
Co-Authors Achmad Fauzi Agus Harjoko Agus Subekti Al Faruq, Tsabit Faiz Alan Primayoga Ambarwati, Anisa Fitriana Amir Hamzah Amir Hamzah Analis, Dian Anggraini Kusumaningrum, Anggraini Ani Purwanti Anton Setiawan Honggowibowo Argaditia Mawadati Ariyana, Renna Yanwastika Arwin Datumaya Wahyudi Sumari Astika AyuningTyas, Astika Benge, Defaullo Benge, Defaullo Andrean Ronaldino Catur Iswahyudi Catur Iswahyudi Dedu, Maria Oktafiana Dewi Wahyuningtyas Dhamayanti, Katherina Irene Dian Analis Dian Analis Dwi Setyowatie Dzakiya, Nurul Edhy Sutanta (Jurusan Teknik Informatika IST AKPRIND Yogyakarta) Edy Supriyanto Effendi, Tirta Meidival Eska Almuntaha Faradila, Niza Faradilla, Niza Fiorina Yunavania, Fiorina Gatot Santoso Harmastuti - Harmastuti Harmastuti Harmastuti, Harmastuti Hasibuan, Albar Adetary Hormat, Petronius I Wayan Budi Sentana, I Wayan Budi Istiari, Satiti Jihanto, M. Vinda Nur Joice Lumban Tobing Joko Winarno Katherina Irene Dhamayanti Khalil sidik Listiyanto, Ziko M. Andang Novianta M. Vinda Nur Jihanto Manggala, Habib Eky Maulana Wahid, Rindo Mohamad Anas Muhammad Andang Novianta Muhammad Andang Novianta Muhammad Andang Novianta Muhammad Andang Supriatna, Muhammad Andang Muhammad, Nawafil Murni Yuniwati, Murni Naniek Widyastuti Naniek Widyastuti Ni Luh Gede Pivin Suwirmayanti, S.Kom, MT, Ni Luh Gede Pivin Nidia Lestari Novianta, M. Andang Nurcahyo, Raden Wisnu Nuryatno, Edi Triono Perdiansa, Aldi Prabowo, Fajar Yulianto Prasetya, Dwi Sabda Budi Primayoga, Alan Pujiastuti, Asih Purnawan - Purnawan Purnawan Purnomo, Sekar Chairunnisa Ratna Wardani Ricky Aurelius Nutanto Diaz, Ricky Aurelius Said - Said Said, Said Samuel Kristiana Saputra, Hendrik Saputro Febri Satriawan Dini Hariyanto Sekar Chairunnisa Purnomo Seran, Vianney Laura Setyawan, Imanuel Calvin Shidiq F, Muhammad Simbolon, Yohana Christine Simbolon, Yohana Cristine Sinaga, Sultoni Wijaya Sisilia Endah Lestari, Sisilia Endah Slamet Hani, Slamet Suparni Setyowati Rahayu Surya, Godeliva Sang Suwanto Raharjo Toto Rusianto Utubira, Berliana Isel Windyaning Ustyannie Wintolo, Hero Yoga, Alan Prima Yuli Asriningtias Yuli Purwanto Yuli Purwanto Yuli Purwanto, Yuli Zahra, Nafisa Ananda