Institut Teknologi Nasional: Jurnal Itenas Online
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Metoda Perawatan Dinding Batu Bata Ekspos Pada Bangunan Villa Merah ITB
Get PDFABSTRAK
Batu bata ekspos adalah batu bata merah seperti biasa yang terbuat dari tanah liat. Namun mempunyai tingkat presisi yang tinggi dan pori yang sedikit. Pembuatannya menggunakan mesin press lalu dibakar. Material ini difungsikan khusus untuk diekspos agar menumbulkan kesan klasik pada bangunan. Salah satu bangunan yang menggunakan dinding batu bata ekspos sebagia estetika bangunannya adalah bangunan Villa Merah Institut Teknologi Bandung. Bangunan Villa Merah Institut Teknologi Bandung dibangun pada tahun 1922 oleh arsitek Belanda, hampir seluruhnya menerapkan dinding batu bata ekspos pada dinding luarnya. Batu bata ekspos pada bangunan Villa Merah ITB tentunya memerlukan perawatan dari faktor perusak eksternal, salah satunya terhadap air.Jenis perawatan yang dilakukan terhadap Villa Merah ITB adalah perawatan preventif (pengecatan permukaan dinding batu bata ekspos) dan perawatan kuratif (pembersihan dari lumut). Penelitian inibertujuan untuk memahami metoda perawatan batu bata ekspos pada bangunan Villa Merah ITB karena sudah dibangun sejak tahun 1922 dan masih kokoh dan awet hingga saat ini.
Kata kunci: Batu bata Ekspos, Villa Merah ITB, Perawatan
ABSTRACT
Exposed bricks are the usual red bricks made of clay. However, it has a high degree of precision and few pores. Making using press machine and then burned. This material is functioned specifically for exposure in order to raise the classical impression on the building. One of the buildings that use exposed brick wall sebagia aesthetics of the building is building Red Villa Institut Teknologi Bandung. The Red Villa Bandung Institute of Technology building was built in 1922 by Dutch architects, almost entirely applying exposed brick walls on its outer walls. The exposed brick on the Red Villa ITB building necessarily requires the treatment of external destructive factors, one of them against the water. The type of treatment performed on Villa Red ITB is preventive maintenance (painting exposed brick wall surface) and curative treatment (cleaning of moss). This study aims to understand the method of exposure brick care in Red Villa ITB building since it was built since 1922 and still strong and durable until now.
Keywords: Exposed bricks, Red Villa ITB, Maintenanc
Perancangan Board Game sebagai Media Edukasi untuk Pendaki Pemula Usia SMA mengenai Teknis dan Etika Mendaki Gunung
Get PDFKecelakaan pendaki dan kerusakan pada area wisata pendakian meningkat seiring menjadi trennya kegiatan mendaki gunung terutama di kalangan remaja. Seperti yang tercatat oleh BASARNAS kecelakaan di gunung meningkat 4 tahun terakhir terutama di tahun 2018 yang mencapat 23 kejadian, dari luka ringan, hilang, hingga meninggal dunia. Sedangkan mengenai lingkungan masih banyak sampah tertinggal, vandalism, juga perusakan area pendakian. Hal tersebut disebabkan oleh kurangnya pemahaman pendaki pemula mengenai Teknis dan etika pendakian yang tidak tertulis. Usia SMA adalah usia dimana individu sedang senang mencoba-coba dan menyukai tantangan, contohnya adalah mengikuti kegiatan pendakian, namun remaja juga memiliki sifat yang sembrono dan mudah bosan sehingga remaja tidak mencari tahu teknis pendakian atau etika setempat membuat resiko kecelakaan dan kerusakan alam semakin tinggi. Oleh sebab itu, diperlukan sebuah media yang berisi tentang teknis sekaligus etika pendakian yang dikemas dalam bentuk menyenangkan disesuaikan dengan usia remaja yang masih senang bermain dengan kearifan lokal Indonesia. Kata Kunci: gunung, pendakian, alam, teknis, etika----- Accident at mountain and damage to the areas are increasing along with the trend of mountain hiking activities among teenagers. As recorded by BASARNAS, accidents on mountains have increased, in 2018 which recorded 23 incidents, from minor injuries, missing, to death. As for the environment, there is still a lot of trash left behind, vandalism, and destruction of the area. This is due to the lack of understanding of hikers regarding techniques and unwritten mountain hiking ethics. High school age is the age where individuals are love to experiment and like challenges, for example, taking part in hiking activities, but teenagers also reckless and get bored easily so they are not searching about hiking techniques or local ethics, making the risk higher. Therefore, we need a media that contains technical and hiking ethics that are packaged with fun for teenagers who still like to play along with Indonesian local wisdom. Keywords: mountain, hiking, nature, techniques, ethi
Estimasi State of Charge (SoC) Ultrakapasitor menggunakan Extended Kalman Filter Berbasis Ladder Equivalent Circuit Model
Get PDFABSTRAKPenggunaan perangkat penyimpan energi semakin lama semakin meningkat pada peralatan berdaya kecil maupun besar. Baterai selama ini menjadi pilihan utama sebagai penyimpan energi. Namun akhir-akhir ini ultrakapasitor menjadi pilihan alternatif karena lifetime lebih panjang dan respon daya sesaat yang jauh lebih besar dari baterai. Pada manuskrip ini dibahas tentang estimasi nilai State of Charge (SoC) pada ultrakapasitor. Estimasi dilakukan berdasarkan rangkaian ekivalen ladder. Extended Kalman Filter adalah metode estimasi yang handal terhadap sistem dinamis dan tidak memerlukan banyak memori. Estimasi menggunakan metode Extended Kalman filter yang ditanamkan pada sistem embedded untuk mengantisipasi kondisi non-linier pada ultrakapasitor. Ultrakapasitor diuji dengan kondisi charging dan discharging. Hasil pengujian menunjukkan, kinerja metode dibandingkan antara data simulasi dan percobaan dengan perbedaan hasil sebesar 6%.Kata kunci: State of Charge, Metode Extended Kalman Filter, Ultrakapasitor ABSTRACTThe use of energy storage devices is increasing in both small and large power equipment. Batteries have been the main choice for energy storage. However, recently ultracapacitors have become an alternative choice because of a longer lifetime and a much larger instantaneous power response than batteries. This manuscript discusses the estimation of the State of Charge (SoC) value on the ultracapacitor. Estimates are made based on a ladder equivalent circuit. Extended Kalman Filter is a reliable estimation method for dynamic systems and does not require a lot of memory. The estimation uses the Extended Kalman filter method implemented in embedded system to anticipate non-linear conditions on the ultracapacitor. Ultracapacitors were tested under charging and discharging conditions. The test results show that the performance of the method is compared between simulation and experimental data with a difference of 6% in results.Keywords: State of Charge, Metode Extended Kalman Filter, Ultrakapasito
Klasifikasi Sinyal EKG menggunakan Ciri Statistik dan Parameter Hjorth dengan SVM dan k-NN
Get PDFABSTRAKSinyal elektrokardiogram (EKG) dapat dianalisis dengan memperhatikan bentuk, durasi, dan irama. Pada penelitian ini, dikembangkan sebuah metode ekstraksi ciri sinyal EKG dengan menggunakan parameter Hjorth dan ciri statistik. Kedua parameter tersebut diaplikasikan untuk mengekstrak ciri-ciri dari rekaman suara sinyal EKG. Terdapat tiga kondisi rekaman sinyal EKG yang menjadi masukan dari sistem, kondisi normal, atrial fibrillation (AF), dan congestive heart failure (CHF). Set ciri rekaman EKG yang didapatkan kemudian diklasifikasikan dengan menggunakan metode support vector machine (SVM) dan k-Nearest Neighbor (k-NN) untuk dibandingkan performansinya. Hasil pengujian menggunakan semua ciri sebagai prediktor menunjukkan bahwa usulan sistem mampu memberikan akurasi sebesar 100%. Sementara itu pada skenario reduksi ciri dimana hanya dua ciri yaitu skewness dan complexity, performansi sistem tidak berkurang. Komparasi dengan beberapa studi sebelumnya menunjukkan bahwa usulan metode lebih unggul dalam hal akurasi deteksi dan jumlah ciri yang digunakan.Kata kunci: EKG, atrial fibrillation, congestive heart failure, Hjorth, SVM, k-NN ABSTRACTAn electrocardiogram (ECG) signal can be analyzed by paying attention to its shape, duration, and rhythm. In this study, feature extraction for ECG signals is applied using the Hjorth parameter and statistical characteristics. These two parameters are applied to extract the characteristics of the ECG signal sound recording. There are three conditions of ECG signal recording that are used as input for the system. They are normal conditions, atrial fibrillation (AF), and congestive heart failure (CHF). The set of ECG recording features are classified using the support vector machine (SVM) and k-Nearest Neighbor (k-NN) methods. The test results using all features show that the proposed system can achieve 100% of accuracy. On the other hand, by reducing the feature using only skewness and complexity, the system’s performance is not reduced. Comparative studies with several previous studies show that the proposed method is superior in detection accuracy and the number of features used.Keywords: ECG, atrial fibrillation, congestive heart failure, Hjorth, SVM, k-N
Analisis Kinematika dan Pola Gerakan Berjalan pada Robot Bipedal Humanoid T-FLoW 3.0
Get PDFABSTRAKRobot humanoid merupakan robot menyerupai manusia dengan tingkat kompleksitas yang tinggi dan fungsi yang serbaguna. Pada penelitian ini dilakukan analisis model kinematika gerak pada robot bipedal humanoid TFLoW 3.0, serta menganalisis pola gerakan berjalannya. Pola pergerakan yang diimplementasikan pada robot bipedal TFLoW 3.0 merupakan hasil pendekatan dari teori cara berjalan manusia dengan menggunakan enam gerakan dasar manusia saat berjalan. Kemudian menganalisis model gerakan robot menggunakan kinematika terbalik dengan solusi geometri. Tujuan dari model kinematika terbalik adalah untuk mengubah data input berupa posisi kartesian menjadi nilai sudut untuk setiap parameter joint pada masing-masing Degrees of Freedom (DoF). Lalu dilakukan analisis model mekanik robot saat berjalan yang terbagi atas fase tegak dan fase berayun yang bertujuan untuk mengetahui hasil pengujian.Kata kunci: robot humanoid, gaya berjalan, kinematika, TFLoW, DoF. ABSTRACTHumanoid robots are human-like robots with a high level of complexity and versatile functions. In this study, kinematics analyze on TFLoW 3.0 humanoid bipedal robot is carried out, as well as analyzing the pattern of its walking movement. The implemented movement of TFLoW 3.0 bipedal robot is the result of an approach from human walk using six basic human movements when walking. the robot movement model is analyzed by inverse kinematics with geometric solutions. Invers kinematics model is to transform the input data in the form of a Cartesian position into an angle value for each joint parameter in each Degrees of Freedom (DoF). Then an analysis of the robot's mechanical model when walking is carried out which is divided into a stance phase and a swinging phase which aims to determine the test results.Keywords: humanoid robot, gait, kinematics, TFLoW, DoF
Identifikasi Sinyal Congestive Heart Failure dengan Metode Convolutional Neural Network 1D
Get PDFABSTRAKPenyakit jantung merupakan salah satu penyebab utama kematian di dunia. Salah satu penyakit jantung yang perlu diperhatikan adalah congestive heart failure (CHF). CHF adalah suatu kondisi di mana jantung tidak mampu memompa darah ke seluruh tubuh. Penyakit ini dapat didiagnosis dengan EKG. Oleh karena itu, pada penelitian ini dibuat sebuah sistem yang dapat mengidentifikasi penyakit CHF secara otomatis menggunakan metode convolutional neural network (CNN) dengan 4 hidden layer dan 16 output channel, fully connected layer, dan aktivasi Softmax. Data yang digunakan dalam penelitian ini diambil dari MITBIH dan BIDMC. Penlitian ini memberikan akurasi 100%, sehingga deteksi penyakit CHF otomatis membantu staf medis mendiagnosis pasien untuk menerima perawatan yang tepat.Kata kunci: Elektrokardiogram (EKG), Convolutional Neural Network (CNN), Normal Sinus Rhythm (NSR), Congestive Heart Failure (CHF)ABSTRACTHeart disease is one of the leading causes of death in the world. One of the heart diseases that need to be considered is congestive heart failure (CHF). CHF is a condition in which the heart is unable to pump blood throughout the body. ECG can diagnose this disease. Therefore, this study created a system that can automatically identify CHF disease using the convolutional neural network (CNN) method with four hidden layers and 16 output channels, a fully connected layer, and Softmax activation. The data used in this study were taken from MIT-BIH and BIDMC. In this study provides 100% accuracy. Automated CHF disease detection helps medical staff diagnose patients to receive appropriate treatment.Keywords: Electrocardiogram (ECG), Convolutional Neural Network (CNN), Normal Sinus Rhythm (NSR), Congestive Heart Failure (CHF)Â
Analisa dan Business Process Redesign Divisi Pemasaran Maskapai Penerbangan XYZ
Get PDFABSTRAKAktivitas layanan maskapai penerbangan setiap tahun semakin menarik perhatian masyarakat. Persaingan ketat untuk memberikan layanan terbaik dan harga terjangkau malalui berbagai promosi ditawarkan oleh berbagai maskapai penerbangan. Proses bisnis pemasaran yang dilakukan dengan baik tentu saja akan berdampak besar pada daya saing sebuah maskapai penerbangan. Proses bisnis pemasaran pada maskapai penerbangan XYZ masih belum sepnuhnya efisien dan belum mengimplementasikan teknologi terbaru. Hal ini berdampak terhadap daya saing maskapi penerbangan XYZ dalam menarik calon pelanggan. Penelitian ini melakukan analisa dan rancang ulang proses bisnis pada divisi pemasaran maskapai penerbangan XYZ untuk memperbaiki kinerja, efisiensi, efektivitas dan kemampuan dalam beradaptasi terhadap perubahan dengan menggunakan pendekatan Business Process Redesign (BPR). Penelitian ini menggunakan notasi Business Process Model and Notation (BPMN) dalam menganalisa dan merancang ulang proses bisnis divisi pemasaran maskapai penerbangan XYZ.ABSTRACTAirline service activities are increasingly attracting public attention year after year. Fierce competition to provide the best services and affordable prices is undertaken by airlines through various promotions. A proper marketing business process will have a significant impact on the competitiveness of an airline. The marketing business process at XYZ airline is still not fully efficient and has not implemented the latest technology. This has an impact on the competitiveness of airline XYZ in attracting prospective customers. This study analyzes and redesigns the process business of the marketing division of XYZ airline to improve its performance by increasing efficiency, effectiveness and its adaptability to changes by using Business Process Redesign (BPR) approach. This study uses the Business Process Model and Notation (BPMN) in analyzing and redesigning the business process of the XYZ airline marketing division
Concept Mapping Techniques to Support Learning Activities in TK Az-Zahra, Kabupaten Karawang
Get PDFThis Community Service (PKM) aims at analyzing teachers’ difficulties in making interesting concept maps in the learning process namely teachers’ lack of understanding of various applications for making concept maps of subject matter, teachers’ difficulties in writing mathematical symbols used in creating learning instruments, as well as inadequate quality in the process of implementing learning activities. This PKM is located at Az-Zahra Kindergarten, Karawang, West Java. Data were collected by means of observation, interviews, and Zoom. The method used by the PKM team to solve problems was to provide training activities on a scheduled basis for one semester. The material presented was the introduction to and use of Mind Map and Math Type application software. The results of this PKM for partners are teachers’ ability to create interesting concept maps and the improvement of learning activities in education units. While the output for the PKM team is the fulfillment of responsibility stated in the Tri Dharma that must be carried out by lecturers indicated by receiving certificate from a partner
IoT Implementation for Development of Remote Laboratory (Case Study on Microscope Practice)
Get PDFDuring the pandemic situation, laboratories with a limited number of equipment cannot be used to their full capacity to avoid over crowded. Thus, innovation is needed in the design and arrangement of laboratories so that they can be accessed remotely with flexible schedule. However, when the community service team studied cases of teaching and learning practices during the pandemic, problems were found, among others, the imbalance between the number of tools and users, as well as limited practical opportunities in online-based learning. Therefore, in this community service a remote laboratory which could be accessed from where the users were as long as they connected to the internet was designed to provide solution to the problems. The designed remote laboratory utilized the Internet of Things (IoT) to help students do practicum on the topic Microspcope by using a remote desktop employing TeamViewer technique as a tool to access the lab computers with the users’ device. As expected, it is proven that remote laboratory can be used to overcome the imbalance between the number of laboratory equipment and laboratory users, and to avoid dangerous crowds during the pandemic as it can be accessed from where the users are located as long as they are connected to the internet
Winplot Application for the Development of Constructivism-Based Mathematics Learning at PGRI 24 High School Jakarta
Get PDFMathematics has many abstract concepts that are hard to understand by students. Learning media as an intermediary play an important role in interpreting difficult materials to them. One of the learning media used by teachers related to mathematics equations and functions is Winplot. This community service is implemented at SMA PGRI 24 Jakarta in 2018. The purposes of this activity are (1) assisting teachers to build learning materials based on constructivism, (2) Assisting teachers to create teaching materials that are interesting and easy to understand by students, and (3) Improving the quality of schools through learning media implementation in teaching-learning activities, such as Winplot. The training method consists of several stages as follows (1) observation and interview, (2) presentation and discussion, and (3) evaluation. The results show that (1) teachers can improve their teaching performances based on constructivism, (2) teachers can develop learning materials which is easy to understand as well as can create an interesting learning atmosphere, especially in subjects related to quadratic equations and functions, (3) the quality of learning and teaching activities in school increases