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All Journal AUSTENIT Jurnal Sains dan Teknologi TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal IPTEK INVOTEK: Jurnal Inovasi Vokasional dan Teknologi JURNAL INTEGRASI Jurnal Elementer (Elektro dan Mesin Terapan) Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Teknologi Pertanian Indonesian Journal of electronics, electromedical engineering, and medical informatics Jurnal Elkolind : Jurnal Elektronika dan Otomasi Industri JTEIN: Jurnal Teknik Elektro Indonesia ARMATUR : Artikel Teknik Mesin dan Manufaktur JITER-PM (Jurnal Inovasi Terapan - Pengabdian Masyarakat)
Made Rahmawaty, Made
Politeknik Caltex Riau
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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PENDEKATAN NEUTROSOPHIC SET UNTUK SEGMENTASI CITRA ULTRASONOGRAFI PAYUDARA BERDASARKAN METODE OTSU Rahmawaty, Made
JST (Jurnal Sains dan Teknologi) Vol 9, No 1 (2020)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (425.945 KB) | DOI: 10.23887/jst-undiksha.v9i1.21153

Abstract

Kanker payudara merupakan penyebab utama kematian perempuan di seluruh dunia. Deteksi batas nodul yang yang tepat, penting dalam mendiagnosis kanker payudara. Metode segmentasi yang akurat sangat penting dalam keberhasilan diagnosis. Ultrasonografi (USG) merupakan alat screening yang efektif untuk deteksi keganasan. Namun adanya speckle noise dan kontras yang rendah pada citra ultrasonografi payudara dapat mempengaruhi hasil segmentasi. Fokus penelitian pada pengembangan metode pra pengolahan untuk meningkatkan kualitas citra dan metode segmentasi otomatis untuk mendeteksi batas nodul secara otomatis pada citra USG payudara. Metode neutrosophic berbasis otsu digunakan untuk memisahkan daerah nodul dengan batas tepi nodul. Berdasarkan hasil segmentasi dengan metode yang diusulkan menunjukkan peningkatan hasil segmentasi citra USG payudara. Hasil segmentasi yang diperoleh antara lain dice coefficient sebesar 82,2%, FP sebesar 23,8%, FN sebesar 13,4%, Housdorff sebesar 48,3 dan MSSD sebesar 354,6. Hasil menunjukkan bahwa metode yang diusulkan mampu mengsegmentasi citra USG payudara secara efektif dan akurat.
Computer Aided Diagnosis using Margin and Posterior Acoustic Featuresfor Breast Ultrasound Images Hanung Adi Nugroho; Yuli Triyani; Made Rahmawaty; Igi Ardiyanto
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 15, No 4: December 2017
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v15i4.5021

Abstract

Breast cancer is the most commonly diagnosed cancer among females worldwide. Computer aided diagnosis (CAD) was developed to assist radiologists in detecting and evaluating nodules so it can improve diagnostic accuracy, avoid unnecessary biopsies, reduce anxiety and control costs. This research proposes a method of CAD for breast ultrasound images based on margin and posterior acoustic features. It consists of preprocessing, segmentation using active contour without edge (ACWE) and morphological, feature extraction and classification. Texture and geometry analysis was used to determine the characteristics of the posterior acoustic and margin nodules. Support vector machines (SVM) provided better performance than multilayer perceptron (MLP). The performance of proposed method achieved the accuracy of 91.35%, sensitivity of 92.00%, specificity of 89.66%, PPV of 95.83%, NPV of 81.26% and Kappa of 0.7915. These results indicate that the developed CAD has potential to be implemented for diagnosis of breast cancer using ultrasound images.
The Development of automatic melinjo puncher machine using pneumatics pressure Hendriko Hendriko; Alfiandis Lafebri; Made Rahmawaty; Tianur Tianur
invotek Vol 21 No 3 (2021): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v21i3.936

Abstract

Melinjo chip is one of Indonesia’s facourite food. Melinjo chip is not only marketed in Indonesia, but they have been exported to various countries including Netherlands, United State of America, and Middle East. Mostly melinjo chips are produced in the traditional way by home industry and MSMEs. The existing machines to produce melinjo chips are not operated fully automatically; hence they still require significant operator involvement. The machine developed in this study uses a pneumatics pressure as power driver. Pneumatics cylinders are used to push the melinjo seeds onto the flattening base, and to move the puncher rod during flattening process. The developed automatic melinjo punching machine has been tested. The tests were carried out to determine the parameters used for programming the machine, sucah as punching time and pneumatic presure, and for checking the capacity of the machine. The test results show that the most effective punching time is 5 seconds at pressure between 5-7 bar. In 5 seconds, the machine can change melinjo seed into chips shape with thickness in between 1,20-1,45 mm. The capacity of the machine in processing melinjo has also been tested. The results showed that this machine can process 528 melinjo into chips shape melinjo per hour.
Rancang Bangun Mesin Pengiris Tempe Otomatis Dengan Pengaturan Ketebalan Hendriko Hendriko; Menti Diana Hura; Jajang Jaenudin; Made Rahmawaty; Nur Khamdi
AUSTENIT Vol. 14 No. 1 (2022): AUSTENIT: April 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i1.4521

Abstract

Tempe is a traditional Indonesian food that can be processed into various derivative food products, including chips and mendoan. Many MSMEs have developed tempe chip products, but the tempe slicing process is still done manually. The manual process has the disadvantage of taking a long time, requiring operators, and inconsistent results. In this study, an automatic tempe slicing machine was developed. The developed machine uses a control system so that it can adjust the thickness of the slices by manipulating the rotational speed of the driving motor. The mechanical design of the tempe pushing system and hopper causes the process to take place continuously. Tests to determine the performance of the machine in producing tempe slices, and to determine the capacity of the machine have been carried out. The results show that the machine can slice tempe well starting from a thickness of 2 mm. The test results also show that the deviation of the thickness of the slices is not significant, which is between -2.2% - 2.5%. Machine capacity depends on the thickness of the slices. For 3 mm slices, the machine capacity is 22 29 kg/hour. Meanwhile, the machine capacity for slice thickness of 5 mm and 7 mm is 31.85 kg/hour and 38.96 kg/hour, subsequently.
Modeling, Simulation, and Stabilization of a Two-Wheeled Inverted Pendulum Robot Using Hybrid Fuzzy Control Made Rahmawaty
Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics Vol 3 No 3 (2021): August
Publisher : Department of electromedical engineering, Health Polytechnic of Surabaya, Ministry of Health Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35882/ijeeemi.v3i3.2

Abstract

Two wheels inverted pendulum robot has the same characteristics as an inverted pendulum, which are unstable and nonlinear. Nonlinear systems can often be linearized by approximating them by a linear system obtained by expanding the nonlinear solution in a series, and then linear techniques can be used. Fuzzy logic control is the famous nonlinear controller that researchers have used to analyze the performance of a system due to the easiness of understanding the nature of the controller. This research discusses two wheels inverted pendulum robot design using hybrid fuzzy control. There are two types of fuzzy control: Fuzzy Balanced Standing Control (FBSC) to maintain stability and Fuzzy Traveling and Position Control (FTPC). Based on Takagi-Sugeno (T-S) fuzzy model on two wheels inverted pendulum robot, FBSC control used Parallel Distributed Compensation (PDC) with pole placement technic. Based on two wheels inverted pendulum robot movement characteristics, FTPC was designed using Mamdani Fuzzy architecture. FTPC control is used to help FBSC maintain robot stability and adjust to the desired position. The simulation result shows that the controller for two wheels inverted pendulum robot can stabilize pendulum angle in 0 radian and close to the desired position.
Rancang Bangun Alat Pemotong Ikan Patin Otomatis untuk Bahan Baku Ikan Salai Edilla Edilla; Rudi Fesri; Made Rahmawaty; Hendriko Hendriko
JURNAL INTEGRASI Vol 13 No 2 (2021): Jurnal Integrasi - Oktober 2021
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v13i2.3243

Abstract

Catfish (Pangasius sp) is a type of fish that is widely used as raw material for processed smoked fish. Salai fish is one of the local culinary delights that are processed by cutting / splitting as well as drying and curing (smoking) which takes approximately 1-2 days and is one of the most familiar culinary delights in Indonesia, especially in Riau Province. However, in making this processed smoked fish, the process of cutting / splitting the fish is still done manually. This can be overcome by means of automatic feeder and catfish cutter. The way this tool works is that fresh fish will be put manually on the conveyor belt then the fish will go to the fish cutting process using a rotating circular blade and will cut the fish according to the depth has been adjusted for the raw material for processed catfish smoked fish. From data collection using 20 fish with a weight ranging from 150 to 365 grams and a length of fish ranging from 23 - 35 cm, the average working time of the 20 fish is 2,27 seconds. To determine the capacity of the tool, a continuous cutting process of 5 fish was carried out and the resulting time was 6,02 seconds, so in 1 minute this tool was able to process catfish as much as 48-49 fish per minute.
Balancing Robot Beroda Dua Menggunakan Metoda Kontrol Proporsional, Integral dan Derivatif Mustaza Maa; Made Rahmawaty; Lio Prisko Ketaren
Jurnal Elektro dan Mesin Terapan Vol. 2 No. 1 (2016): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (276.277 KB) | DOI: 10.35143/elementer.v2i1.48

Abstract

Balancing robot beroda dua merupakan suatu robot yang memiliki prinsip kerja seperti pendulum terbalik yangmempertahankan keseimbangan robot pada sudut 0° dan tegak lurus terhadap permukaan bumi dibidang datar. Untuk kontrol keseimbangan balancing robot menggunakan metode kontrol Proporsional Integral Derivatif (PID) dengan  mengatur kecepatan dan arah putaran motor. Balancing robot beroda dua menggunakan sensor accelerometer untuk mendeteksi kemiringan serta sensor gyroscope untuk mendeteksi kecepatan sudut badan robot ketika akan terjatuh. Untuk penggerak robot menggunakan motor DC. Balancing robot beroda dua mampu mempertahankan posisi robot pada kondisi setimbang. Dari hasil pengujian nilai PID yang paling ideal yaitu Kp: 8.0 Ki: 7.8 dan Kd 2.0
Perbandingan Teknik Reduksi Derau Speckle Pada Citra Ultrasonograpi Payudara Yuli Triyani; Made Rahmawaty
Jurnal Elektro dan Mesin Terapan Vol. 4 No. 2 (2018): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (433.033 KB) | DOI: 10.35143/elementer.v4i2.2409

Abstract

Breast cancer is the most commonly diagnosed cancer with the highest prevalence, incidence, and mortality rate for females in Indonesia and worldwide. Ultrasonography is a recommended modality for breast cancer, because it is comfortable, radiation free and it can be widely used. However, ultrasound images often occur in quality degradation caused by speckle noise that appears during image acquisition. It causes difficulty for radiologists or Computer Aided Diagnosis (CAD) systems to diagnose these images. Some techniques are proposed for reducing the speckle noise. This journal aims to compare the performance of 14 noise reduction techniques in breast ultrasound images. Quantitative testing was carried out on 58 breast ultrasound images and 3 artificial breast ultrasound image. The quantitative parameters are used include texture analysis (Mean, Variant, skewness, kurtosis, contrast and entropy) and evaluation of image quality (MSE, RMSE, SNR, SSIM, Structural content and Maximum Difference). The qualitative testing was also carried out with the assessment of 3 radiology specialists on 3 samples of each reduction technique. Based on test results, the 3 best performance filters are DsFsrad, DsFamedian dan DsFhmedian. Keywords: Ultrasound, speckle noise, filter
Robot Penyiram Tanaman Made Rahmawaty; Muhammad Taufik; Hendriko Hendriko
Jurnal Elektro dan Mesin Terapan Vol. 3 No. 2 (2017): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (386.159 KB) | DOI: 10.35143/elementer.v3i2.2416

Abstract

Robot penyiram tanaman merupakan sebuah robot yang dapat melakukan penyiraman secara otomatis yang bertujuan digunakan dalam ruangan seperti diperkantoran, pelayanan umum, sekolah, dan perguruan tinggi.Robot penyiram tanaman sebelumnya menggunakan joystick untuk pergerakan robot, pada penelitian ini mengembangkan robot agar dapat bergerak secara otomatis.Robot ini dapat bergerak secara otomatis dengan menggunakan metode pendeteksian penghalang,pergerakan, dan pembacaan warna pot. Metode pendeteksian penghalang (dinding) menggunakan sensor ultrasonik yang bertujuan untuk mengetahui jarak penghalang pada robot. Pembacaan untuk warna pot menggunakan kamera webcam dan raspberry pi 3digunakan untuk mengontrol prosespendeteksian halangan, pembacaan warna pot dan pendeteksian pergerakan. Rata-rata persentase error pembacaan jarak pada sensor ultrasonik adalah 5,279%. Pendeteksian penghalang pada pergerakan robot baik maju, belok kiri dan belok kanan adalah 100%.Rata-rata keberhasilan robot dengan empat posisi penyiraman adalah 75%. Dari hasil pengujian maka robot penyiram tanaman dapat digunakan untuk perawatan tanaman khususnya penyiraman.
Sistem Keseimbangan Segway Menggunakan Kontrol Proportional Integral dan Derivatif (PID) Made Rahmawaty; Thalia Smart Aritonang; Tianur; Wiwin Styorini; Muhammad Diono
Jurnal Elektro dan Mesin Terapan Vol. 8 No. 2 (2022): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (649.79 KB) | DOI: 10.35143/elementer.v8i2.5718

Abstract

Segway is a mobile robot that has two wheels on the right and left that will not be balanced if there is no controller. The Proportional Integral Derivative (PID) control is used to determine the magnitude and speed of the DC motor rotating as a driving force, so that the balancing tool can maintain its position perpendicular to the surface of the earth on a flat surface. This tool is controlled by using a microcontroller-based controller using Arduino, so that the robot's motion system becomes automatic in accordance with the program created by the controller. Segway uses the MPU 6050 sensor module as a sensor in which there is a gyroscope and accelerometer as well as making it easier to detect a speed and acceleration angle as input to the Segway. The resulting data will be processed in Arduino so that the DC motor will actively balance the Segway. Segways have a maximum angle of 10 ° to get back to the point of 0 °. Segway can be balanced with PID parameter values that are close to optimal are Kp = 3.55, Ki = 0.005, Kd-2.05 by having a fast settling time at the 0.71 second
Co-Authors ., Tianur Akbar, Memen Alfiandis Lafebri Ananda Budi Agusti Arifvhia, Arifvhia Bagas Prayoga Suswanto Suswanto Bagaskara, Prayoga Dimas Edilla Edilla edilla, edilla Elfrida Ratnawati Fauzan, Muhammad Hilmy Fifitri Ali Hamid Azwar Hendriko Hendriko Hendriko hendriko hendriko Hendriko Hendriko Hendriko, Hendriko Igi Ardiyanto Jajang Jaenudin Jajang Jaenudin Khamdi, Nur Kurniawan, Wanda Lio Prisko Ketaren Lukman, Ade M. Bayu Anggoro Nurcahyo M. Ihsan Zul M. Suhairi Maa, Mustaza Madona, Putri Menti Diana Hura Muhammad Diono Muhammad Ihsan Mustaza Maa Novison, Roni Nur Khamdi Nur Khamdi pernandito, anderson _ Pramestya, Anis Putra, Dicky Herlangga rieke yolanda Rudi Fesri Satria Perdana A Thalia Smart Aritonang Tianur Tianur Tianur Tianur Tianur Tianur Tianur, Tianur Tobi Arfan Wiwin Styorini Yuli Triyani Yuliska