Jurnal Qua Teknika最新文献

{"title":"APLIKASI PEMBELAJARAN BERBASIS AUGMENTED REALITY PADA BUKU PENGENALAN ALAT MUSIK MODERN UNTUK ANAK","authors":"Mohamad Sofiudin, T. Akhriza, Dinny Wahyu Widarti","doi":"10.30736/JT.V11I1.281","DOIUrl":"https://doi.org/10.30736/JT.V11I1.281","url":null,"abstract":"The use of augmented reality (AR) technology as a learning medium for modern musical instruments aims to overcome the limitations of schools in terms of the procurement of musical instruments, as well as to increase the value of student understanding and provide a more interactive experience. Modern AR-based learning instruments application featuring 3D objects and 3D videos of modern musical instruments. The application is built for mobile devices operating on Android. Based on the results of testing the device, the application can run perfectly on devices with a RAM specification of 0.5 GB and above. Tests were also conducted on Diponegoro Islamic elementary school students and teachers, these students experienced an increase in understanding of modern musical instruments, while testing of teachers to measure the interactivity of applications.","PeriodicalId":17707,"journal":{"name":"Jurnal Qua Teknika","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79942449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PEMANFAATAN LIMBAH FLY ASH DAN BOTTOM ASH DARI PLTU SUMSEL-5 SEBAGAI BAHAN UTAMA PEMBUATAN PAVING BLOCK","authors":"H. Winarno, Damris Muhammad, Yudha Gusti Wibowo","doi":"10.30736/JT.V11I1.288","DOIUrl":"https://doi.org/10.30736/JT.V11I1.288","url":null,"abstract":"Fly ash and bottom ash are solid waste from coal combustion in the operating system of Steam Power Plant (PLTU). The research was conducted by combining fly ash and bottom ash with an adhesive consisting of portland cement. Based on the tests performed the maximum mixture obtained with cement samples, fly ash and bottom ash is 1: 2: 2. Paving blocks made from fly ash and bottom ash have compressive strength values resulting in compressive strength values of 50.52 MPa. This value indicates that the sample is in the class of paving blocks A. Paving Block made from fly ash and bottom ash also has a very good average air absorption value, in a combination of suitable cement mixtures, fly ash and bottom ash (1: 2: 2) the average air absorption value is still 5.06%. This value shows that the sample is in class B paving blocks.","PeriodicalId":17707,"journal":{"name":"Jurnal Qua Teknika","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88074416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PENGARUH PENAMBAHAN ABU CANGKANG BEKICOT PADA SEMEN RAMAH LINGKUNGAN TERHADAP KUAT TEKAN MORTAR","authors":"Achendri M. Kurniawan, Devita Sulistiana","doi":"10.30957/quateknika.v8i2.502","DOIUrl":"https://doi.org/10.30957/quateknika.v8i2.502","url":null,"abstract":"Blitar Regency is one of the strange culinary centers, among which are processed various foods from snail base ingredients, ranging from kripik, sate oseng-oseng and so on as well as the existence of Blitar district is one of the rice barns in East Java. With the existence of Blitar district as a snail-based culinary producer and one of the rice barns in East Java, this is not spared from several problems, such as the disposal of snail shells in the river and burning of rice straw in rice fields which both will cause environmental damage. This study aims to examine the use of snail shell ash and rice straw ash as a substitute material for cement in mortar mixtures against mortar compressive strength. The research method used was the experimental method by mixing fine aggregate main ingredients with snail shell ash and rice straw ash then testing the compressive strength. The results of the compressive test with the addition of the percentage of snail shell shell turned out to increase by 54.78%.","PeriodicalId":17707,"journal":{"name":"Jurnal Qua Teknika","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86621284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RANCANG BANGUN MEDIA ANIMASI PICTORIAL RIDDLE SEBAGAI MEDIA PEMBELAJARAN FISIKA BANGUNAN MAHASISWA TEKNIK SIPIL","authors":"Hazairin Nikmatul Lukma","doi":"10.30957/quateknika.v8i2.500","DOIUrl":"https://doi.org/10.30957/quateknika.v8i2.500","url":null,"abstract":"Penelitian ini bertujuan untuk mendesain sebuah media pembelajaran yang bersifat menarik, kreatif, serta interaktif dalam sebuah proses pembelajaran, pada Mata Kuliah Fisika Bangunan Program Studi Teknik Sipil Fakultas Teknik Universitas Islam Balitar Blitar. Desain Media Pembelajaran merupakan tampilan animasi, dengan aplikasi Software Adobe Flash Player 8, dengan metode pembelajaran yang diterapkan adalah Pictorial Riddle. Penelitian menggunakan metode kuasi eksperimen dengan desain one group pretest-posttest design. Sampel penelitian diambil secara acak dari seluruh mahasiswa yang memprogram mata kuliah Fisika Bangunan, sebanyak 20 orang. Peningkatan tes hasil belajar mahasiswa dianalisis menggunakan N-gain. Hasil penelitian menunjukkan bahwa penerapan media animasi Pictorial Riddle dapat meningkatkan hasil belajar mahasiswa pada mata kuliah Fisika Bangunan, pada pertemuan pertama sebesar 17 % dengan N-gain sebesar 0,40 dan masuk dalam kategori sedang. Sedangkan pada pertemuan kedua terjadi peningkatan sebesar 11 % dengan N-gain sebesar 0,35, masuk dalam kategori sedang.This research aims to design a learning media that is interesting, creative, and interactive in a learning process, in the Building Physics Course in the Civil Engineering Study Program, Faculty of Engineering, Blitar Balitar Islamic University. Learning Media Design is an animated display, with Adobe Flash Player 8 Software application, with the learning method applied is Pictorial Riddle. The study used a quasi-experimental method with the design of one group pretest-posttest design. The research sample was taken randomly from all students who programed the Building Physics course, as many as 20 people. Improved student learning outcomes tests were analyzed using N-gain. The results showed that the application of Pictorial Riddle animation media can improve student learning outcomes in the Building Physics course, at the first meeting of 18% with N-gain of 0.40 and in the medium category. While in the second meeting there was an increase of 12% with N-gain of 0.35, included in the medium category.","PeriodicalId":17707,"journal":{"name":"Jurnal Qua Teknika","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73838554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PREDIKSI LUAS BANGUN BERBASIS IMAGE PROSESSING ALGORITMA CANNY","authors":"Ahmad Syafawi","doi":"10.35457/QUATEKNIKA.V8I2.471","DOIUrl":"https://doi.org/10.35457/QUATEKNIKA.V8I2.471","url":null,"abstract":"Dalam menentukan luas objek persegi, persegi panjang, dan lingkaran diperlukanlah sebuah penggaris untuk mendapatkan nilai luasannya, agar lebih mudah dan praktis dapat dibantu dengan sebuah web camera dengan cara mengcapture gambar sampel objek yang ingin diketahui luasnya. Image Prosessing adalah suatu proses yang digunakan untuk mengolah citra atau gambar untuk mendapatkan citra yang lebih bagus mengunakan perangkat sistem komputer. Untuk mendapatkan perolehan panjang (X,Y) dari gambar dapat diukur setelah melewati beberapa tahapan di image prosessing yaitu dengan konversi citra dari RGB, HSV dan deteksi tepi canny, lalu terdapatlah nilai luasan dari hasil pengukuran objek. Metode Canny sendiri merupakan deteksi tepi paling baik ketika digunakan untuk mendeteksi tepi objek,  sehingga hasil deteksi tepi tersebut dapat diambil informasi yang berguna dari citra tersebut. Dengan pengukuran luas secara manual dan secara otomatis terdapat presentase error kurang lebih 5%, hasil luas objek tersebut sudah cukup akurat namun terdapat masalah jika dalam pembuatan objek kurang presisi, peletakan objek yang miring/kurang tegap dan pencahayaan yang kurang mengakibatkan kurangnya tingkat akurasi.In determining the area of a square, rectangle, and circle object a ruler is needed to get the area value, so that it can be easier and more practical to be assisted by a web camera by capturing the image of the object sample that you want to know the area. Image Prosessing is a process used to process images or images to get better images using computer system devices. To get the long gain (X, Y) from the image can be measured after passing through several stages in image processing that is by image conversion from RGB, HSV and canny edge detection, then there is an area value from the object measurement results. The Canny method itself is the best edge detection when used to detect the edge of an object, so that the useful information of the edge detection can be retrieved from the image. With the area measurement manually and automatically there is a percentage error of approximately 5%, the object's width results are quite accurate but there is a problem if the object is less precise in making objects, sloping / less robust object laying and less lighting result in a lack of accuracy.","PeriodicalId":17707,"journal":{"name":"Jurnal Qua Teknika","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87362967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PENDETEKSI KEKERUHAN AIR DI TANDON RUMAH BERBASIS ARDUINO UNO","authors":"M. Ikhsan","doi":"10.30957/QUATEKNIKA.V8I2.470","DOIUrl":"https://doi.org/10.30957/QUATEKNIKA.V8I2.470","url":null,"abstract":"Air merupakan salah satu sumber daya alam yang sangat dibutuhkan oleh manusia. Tingkat kekeruhan air selalu berubah-ubah sesuai musim. Alat pendeteksi kekeruhan airdi tandon rumah berbasis arduino uno dibuat dengan menggunakan sensor LDR sebagai pembaca kekeruhan air dengan memanfaatkan karakteristik sensor LDR sebagai sensor intensitas cahaya dalam membaca perubahan intensitas cahaya dan lampu LED sebagai indikatornya. Berdasarkan hasil percobaan pada setiap sampel dapat menunjukan tingkat kekeruhan yang berbeda dan dapat membedakan tingkat kekeruhan air dengan 3 tingkatan kekeruhan. Jika nilai ADC kurang dari 153 indikator LED berwarna hijau akan menyala, air dinyatakan tidak keruh. Jika nilai ADC lebih dari 154 dan dibawah nilai 158 indikator LED berwarna kuning akan menyala, air dinyatakan sedikit keruh. Jika nilai ADC lebih dari 159 indikator LED berwarna merah akan menyala maka air dinyatakan keruh.","PeriodicalId":17707,"journal":{"name":"Jurnal Qua Teknika","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78719843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SIMULASI GANGGUAN VOLTAGE SAG DAN VOLTAGE SWELL PADA JARINGAN 20 KV MENGGUNAKAN MATLAB SIMULINK","authors":"Mustofa Ihwanudin","doi":"10.30957/QUATEKNIKA.V8I2.472","DOIUrl":"https://doi.org/10.30957/QUATEKNIKA.V8I2.472","url":null,"abstract":"Pada jaringan distribusi sering muncul gangguan yang bisa mengakibatkan penurunan kualitas daya, diatara penyebab penurunan kualitas daya adalah voltage sag dan voltage swell. Gangguan jenis ini dapat mengakibatkan gagal operasi peralatan terutama yang menggunakan komponen elektronik daya. Penelitian berupa simulasi untuk menggambarkan terjadinya voltage sag dan voltage swell yang disebabkan gangguan fasa ke tanah dan pelepasan beban yang di variasi dengan sambungan trafo distribusi yang berbeda. Simulasi dilakukan menggunakan software matlab simulink. Hasilnya model simulasi mampu menggambarkan sinyal voltage sag  akibat hubung singkat satu fasa, dua fasa, tiga fasa ke tanah dan sinyal voltage swell akibat pelepasan beban.","PeriodicalId":17707,"journal":{"name":"Jurnal Qua Teknika","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76820435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"WHITE BOX TESTING PADA SISTEM PEMESANAN DESAIN SABLON BERBASIS WEB","authors":"A. Kusuma, Bayu Setiawan","doi":"10.30736/TEKNIKA.V10I2.241","DOIUrl":"https://doi.org/10.30736/TEKNIKA.V10I2.241","url":null,"abstract":"Ordering a screen printing design is built as a supporting tool to anticipate cheating buyers in ordering goods that  are  normally  done  through  the  marketplace.  By  using  this  system  the  user  must  enter  the  order  number obtained after the customer makes an order in the marketplace for verification if they want to make a design order. Admin can manage user access to order designs and manage the design queue properly. White box testing method is done to find out how the system works structurally, besides to find out things that might happen when the system is run. In the white box test on the user login page and the design orderi ng page, the system works well as evidenced from the testing phase as in Cyclomatic Complexity and Matrix produces a value of 2 for the user login page and 1 for the design message page.","PeriodicalId":17707,"journal":{"name":"Jurnal Qua Teknika","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81983690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"KLASIFIKASI KUALITAS MUTU TELUR AYAM RAS BERDASARKAN FITUR WARNA DAN TEKSTUR","authors":"M. Sholihin, M. G. Rohman","doi":"10.30736/TEKNIKA.V10I2.244","DOIUrl":"https://doi.org/10.30736/TEKNIKA.V10I2.244","url":null,"abstract":"Egg quality is determined by the quality of the inside and outside of the egg. To find out the quality of eggs canbe by looking at the outside in the form of skin condition, shape, size, and egg weight. In this study a system isdesigned to function to determine the quality of egg quality based on color and texture features. Broadlyspeaking, the system built consists of 4 main processes. This process begins with pre-processing which aims toimprove image quality and also to change the image size. The next process is segmentation to get the egg object.The next process is feature extraction which aims to get the characteristics of each egg object. The last processis a classification that aims to determine the class of egg images entered by the user, the method used is knearest neighbor. The data used in this study were 147 egg images consisting of 85 eggs of data testing and 62eggs of training data. The highest accuracy obtained from this study is 82.3% with a value of 8","PeriodicalId":17707,"journal":{"name":"Jurnal Qua Teknika","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87773916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"KLASIFIKASI KARAKTER BERDASARKAN PENILAIAN SIKAP SOSIAL TEMAN SEJAWAT PADA KURIKULUM 2013 MEMANFAATKAN NAIVE BAYES","authors":"Imron Rosadi","doi":"10.30736/teknika.v10i2.237","DOIUrl":"https://doi.org/10.30736/teknika.v10i2.237","url":null,"abstract":"This  aim  of  this  researh  is  to  classify  an  assessment  sentence  from  students,  then  classified  to  produce  an information. Classification is used to determine the character of   each student so that teachers have no difficulty in  assessing  the  social  character  of  the  student,  based  on  asesment  orientation  On  Kurikulum  2013.  This research  is empasize  to  processing opinion for the  students  to evaluate their friend in  SMA Negeri 1 Ngimbang Lamongan,  and  the  opinion  to  evaluate  each  student  will  classified  into  6  social  attitudes  that  is  Honest, Discipline,  Responsibility,  Pay  Attention  (mutual  cooperation,  tolerance),  well  manered  and  selsf  confidence, this  research  is  divide  into  2  phase  that is the  process  to produce  training data  (dataset) and the process to classify  opinion (test data). Both off the process are to  at extracting the attributes and  object components which commented in every document and to decide  the classification social attitudes classfication for each student.On the system for this character clasification produce accuracy with the sucess rate from the result of the testing clasficataion use Algoritman Naive Bayes success rate of 72%, this approach paper I use of 80%, the succes rate of 72% because the use of the sentence for rating colleague had the rate of variants are quite low that affect the process off making the data that will be used to the system off the clasificaton of characterer","PeriodicalId":17707,"journal":{"name":"Jurnal Qua Teknika","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75030567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}