UIN (Universitas Islam Negeri) Sunan Kalijaga, Yogyakarta: E-Journal Fakultas Sains dan Teknologi
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Penentuan Emosi pada Video dengan Convolutional Neural Network
No full textEmosi seseorang dapat ditunjukan melalui ekspresi wajah. Ekspresi wajah manusia dapat berubah-ubah secara dinamis tanpa disadari oleh orang tersebut. Penelitian ini melakukan penentuan emosi dengan melakukan pengenalan ekspresi wajah manusia dan melakukan perekaman untuk setiap perubahan ekspresi wajah tersebut. Metode dalam penelitian ini adalah dengan melakukan klasifikasi terhadap 6 ekspresi dasar wajah manusia ditambah ekspresi netral dengan Convolutional Neural Network (CNN). Pemerataan distribusi data dilakukan untuk meningkatkan kinerja model. Dari pemodelan tersebut, dihasilkan model klasifikasi yang dapat diterapkan pada sebuah video. Model tersebut diuji menggunakan data yang terpisah dari data latih dan dievaluasi menggunakan confusion matrix. Sebagai hasil evaluasi, diperoleh akurasi 74%, rata-rata presisi 75,05%, dan rata-rata recall 74%. Di akhir penelitian ini, peneliti melakukan percobaan dengan menerapkan model klasifikasi tersebut pada beberapa video yang mewakili ekspresi seseorang di dalam video tersebut. Setiap perubahan ekspresi akan direkam dan dianalisis sehingga ditemukan emosi yang paling dominan
Aplikasi Manajemen Surat Masuk dan Surat Keluar Berbasis Mobile di Perum Bulog Subdivre Dumai
No full textLetters are a means of communication used to convey written information by one party to other parties both related to business and non-business activities. Handling and managing letters, both incoming and outgoing letters at the Perum Bulog Subdrivre Dumai are still done manually. Where incoming and outgoing letters are recorded in the agenda book. Therefore, a mobile-based incoming and outgoing mail management application was designed at the Perum Bulog Subdivre Dumai using a laravel framework with the Hypertext Preprocessor (PHP 7.1.3) programming language and JavaScript. For mobile devices built using the Native React Framework. The application can facilitate the information of incoming mail to the leadership, facilitate the allocation of follow-up and disposition of incoming mail in the relevant fields, facilitate approval of outgoing letters to the leadership and accelerate the search for data
MODIFIKASI ZEOLIT ALAM DENGAN ZIRCONIUM OXYDECHLORIDE PRODUK PSTA-BATAN DAN UJI KATALITIKNYA UNTUK SINTESIS SENYAWA TURUNAN GLISEROL
No full textAbstrak. Penelitian mengenai modifikasi zeolit alam dengan zirconium oxydechloride produk PSTA-BATAN dan uji katalitiknya untuk sintesis senyawa turunan gliserol telah dilakukan dengan 4 tahap, yaitu aktivasi zeolit alam, impregnasi logam Zr kedalam zeolit alam aktif, aplikasi katalis ZA/Zr untuk sintesis senyawa turunan gliserol menggunakan asam asetat (tahap esterifikasi) dan reaksi asetilasi menggunakan anhidrida asam asetat. Tujuan penelitian ini yaitu untuk mengetahui pengaruh impregnasi Zr pada katalis zeolit alam aktif dan uji katalitiknya untuk sintesis senyawa turunan gliserol yang meliputi pengaruh waktu terhadap konversi gliserol dan selektivitas senyawa turunan gliserol, serta pengaruh penambahan anhidrida asam asetat (tahap asetilasi) terhadap selektivitas triacetin. Katalis yang digunakan yaitu zeolit alam aktif terimpregnasi Zr dengan variasi 0%; 5%; dan 10% (b/b) dari zeolit. Hasil analisa menggunakan FT-IR dan XRD terhadap katalis menunjukkan bahwa katalis yang di sintesis berupa zeolit alam teraktivasi asam berjenis mordenit. Adanya logam Zr yang teremban kedalam katalis zeolit alam aktif ditunjukkan munculnya puncak difraksi pada 2θ = 22,09 dan 2θ = 35,55. Sedangkan hasil analisa terhadap produk esterifikasi menggunakan FTIR dan GC-MS menunjukkan adanya gugus ester serta adanya senyawa diacetin dan triacetin yang terbentuk. Konversi terbesar diberikan oleh katalis ZA/Zr-5 yaitu sebesar 46,41%. Adanya penambahan anhidrida asam asetat tidak memberikan dampak yang signifikan terhadap selektivitas triacetin
PERLAKUAN PRETREATMEN SECARA FISIK, KIMIA DAN BIOLOGI PADA PELEPAH POHON SALAK
No full textAbstrak. Penelitian ini bertujuan untuk mengetahui pengaruh perlakuan fisik, kimia dan biologis pada proses pretreatmet pelepah salak; untuk mengetahui degradasi lignin, hemiselulosa dan selulosa. Perlakuan pretreatment pelepah pohon salak pada penelitian ini meliputi fisik,kimia dan biologi. Perlakuan fisik menggunakan steam explosion, perlakuan kimia menggunkan NaOH dan perlakuan biologis menggunkan Trichoderma reesei FNCC 6012. Perlakuan Pretreatment menggunkan Steam Explosion memiliki aras yaitu besarnya suhu mulai dari 120 0C, 140 0C, dan 1600C. Perlakuan menggunakan NaOH terdiri dari konsentrasi 2 %, 4%, dan 6%, sedangkan perlakuan menggunakan Trichoderma reesei berdasarkan waktu fermentasi selama 5 hari, 10 hari, 15 hari. Perlakuan pendahuluan tersebut berfungsi untuk mengurangi kadar lignin yang ada pada pelepah salak. Parameter yang diamati dalam penelitian ini adalah kandungan lignin, hemiselulosa dan selulosa. Hasil penelitian menunjukan bahwa perlakuan menggunakan Steam Explosion dengan suhu 140 0C dan 160 0C mampu menurunkan kadar lignin sebesar 16.03% dan 15,90%. Perlakuan menggunakan Steam exploision suhu 160 0C dan Trcihoderma reesei 15 Hari mampu meningkatkan kadar Hemiselulosa sebesar 35, 84 % dan 36,21%. Perlakuan menggunakan Steam Explosion dengan suhu 160 0C memberikan pengaruh yang terbaik pada selulosa sebesar 51.09%
DETEKSI POLA AROMA KULIT BABI DAN KULIT SAPI MENGGUNAKAN ELECTRONIC NOSE (E-Nose)
No full textThis study aimed to detect the aroma pattern of pigskin and cow-hide using E-Nose. This research was conducted by collecting data. Data were collected using Electronic Nose (E-Nose) and GeNose datalogger software. The software only displays the stress data of the two aroma patterns of cow hide and pigskin in real time, but has not been able to display the difference between the two aroma patterns. The aroma pattern of pigskin and cow hide has been detected and the radar plot shows the performance that there is one TGS sensor that does not respond to the aroma patterns of the two skins, namely TGS 2612, while the TGS sensor that responds is seven TGS sensors.
The Development of Web-Based Paperless Office System Using CodeIgniter Framework Case Study of Lembaga Pengembangan Cabang Ranting Muhammadiyah
No full textLembaga Pengembangan Cabang Ranting (LPCR) Muhammadiyah Yogyakarta is an institution that often conducts correspondence between institutions. The activity of recording incoming and outgoing mail data at LPCR Yogyakarta still uses the manual method by recording in a ledger. In addition, the length of time required in the letter of submission is also still found in the LPCR. One method that can be used to overcome this is paperless office, where the work environment that uses paper is eliminated or greatly reduced. The use of paperless office in addition to saving paper can also improve the efficiency of data processing and search because the form is already digital. This system was built using the Unified Software Development Process (USDP) development method, with the Unified Modeling Language (UML) modeling. In the initial process, the initial phase is an analysis of requirements for software requirements. Furthermore, at the elaboration stage, the maturation of concepts that have been analyzed in the previous phase is carried out. Then at the development stage, system development is done with the PHP programming language and MySQL database using the CodeIgniter framework. The final phase is the transition carried out alpha testing and beta testing. The alpha test results of the system built went well, while for the beta test results at the Administrator level, the results were 86.8% Strongly Agree and 13.2 Strongly Disagree, 86.4% Strongly Agree and 13.6% Strongly Disagree of Headoffice users, 91.3% Strongly Agree and 8.7% Strongly Disagree from the results of the operators\u27 user answers and 96% Strongly Agree and 4% Strongly Disagree from the results of the Guest user. Based on the test results, the system built is feasible and can be used by LPCR Yogyakarta
The Effect of Android Game Based Learning for Student Interest in Mathematics Learning
No full textNowadays technology is growing very rapidly. The existence of this technology development, helps a lot of people in carrying out their activities. There is one form of development technology that very influential in everyday life and mostly found in the community is an android smartphone. In this age, smartphones have become a lifestyle for the society. The development of smartphone technology has been perceived by all levels of society especially for students. Besides, being used in social media, smartphone purpose is also being used to play a game by students, both online and offline games. In the field of education, smartphones are still rarely used to support learning activities, especially in mathematics learning. This issue is happened because there are still many educators who are reluctant to switch from conventional learning methods to digital-based learning. Even though the interest of students in the smartphone technology especially game, is high enough. This research, intend to determind the effect of mathematics learning based on interactive android game to student’s study interest. This research use study literature method, that is consider relevant various research, then the researcher conclude it based on the various research. The result of this research is there is an influence of learning based on interactive android game to student’s interest. So, this learning based on android game can be used to increase student interest in mathematics
Application of Webster\u27s Method to Optimizing Traffic Lights at the Intersection of Bantul - Nasional III Street, Yogyakarta
No full textIndonesia is a developing country with the fourth largest population in the world. Population in one of the provinces in Indonesia, namely Yogyakarta Special Region. Based on data from the Badan Pusat Statistik (BPS), the Special Region of Yogyakarta reached 3.8 million people in 2018. Of this number, almost one third (1.2 million people) are residents of Sleman. While the region with the next largest population is Bantul with 1 million inhabitants. Increasing population causes the need to move and other needs, as well as activities in the education, office and trade sectors also increase. This increase will also affect transportation by increasing the number of vehicles, but this increase is not in line with the existing traffic light updates. As a result, the capacity of the street section has decreased and caused congestion, for example at the APILL intersection on Bantul-Nasional III Street, Yogyakarta. This shows that the existing traffic light settings are not optimal. Therefore, it is necessary to evaluate the duration of the traffic lights to minimize congestion. This research was conducted to analyze the traffic light system at the APILL intersection on Bantul-Nasional III Street, Yogyakarta using the Webster method. The results of calculations using this method obtained results for the Bantul Street (north), the duration of the green light 30 seconds, yellow 3 seconds and red 28 seconds. For Nasional III Street (East), the duration of the green light is 24 seconds, yellow is 3 seconds and red is 34 seconds. For Bantul Street (south), the duration of the green light is 30 seconds, yellow is 3 seconds and red is 28 seconds. For Nasional III Street (West), the duration of the green light is 24 seconds, yellow is 3 seconds and red is 34 seconds. These results look more optimal than those on the field today
Learning with Mak Karjo Media to Increase Student Motivation for Learning Materials Trigonometry High School Students
No full textMath learning is growing as the times evolve. More and more media is used to enhance student learning motivation. This assessment aims to create a math learning design that can increase the motivation of learning students through Math card matchmaking (Mak Karjo) in high school students. As for the use is a descriptive method and the post facto method ex. The descriptive method used is with the development of pre-existing research results. While the method ex post facto, that is to assess the use of Media card soul mate in improving the motivation to learn high school students. Mak Karjo is the length of mathematics with a matchcard, so the media used is the media of a soul mate filled with sin, cos, and tan. Results show that the application of Mak Karjo in trigonometric learning motivates students in learning because learning is designed in such a way that it can create a pleasant learning atmosphere
