Laptops are one of the most important needs in this day and age, laptops are also a support to help all work in all fields such as education, military, offices and others. The laptop itself has the ability to help work such as processing data, processing documents, editing, rendering, gaming, watching, and much more that can be done by a laptop. In addition, along with the times, laptop…
Synchronous generators are a type of electric machine that functions to produce alternating voltage by converting mechanical energy into electrical energy. The operation of generators must be stable to ensure optimal performance. This stability can be influenced by several factors, including load, armature current, excitation voltage, power losses, and others. Load changes also cause …
ABSTRACT Nowadays, communication is more important than ever, and having access to telecommunications services has become a necessary. Therefore, in order to support both the quantity of consumers who require access to the accessible information and the quality of information flow between customers, broadband transmission system services are required. Because fiber optic communication syste…
ABSTRACT In a Radio Over Fiber (ROF) system, when a radio frequency (RF) signal with a double sideband spectrum is transmitted through a dispersive link, fluctuations in the recovered RF signal power, known as Dispersion Power Fading (DPF), occur. Various methods have been employed to address DPF, including Optical Single Sideband (OSSB). The modulation schemes resulting from some of these m…
The method of teaching cell organelles in grade XI science classes still relies on conventional methods such as books, videos, PowerPoint slides, and microscopes, which have limitations in 3D visualization, interactivity, and microscope usage. To address this, an AR application for demonstrating cell organelles was developed using Marker Based Tracking on Android, employing R&D research methods…
Attendance is a repetitive activity done by a person to provide proof of attendance in an agency or company. Employee attendance at Vickery Christian Academy is very necessary to affect school productivity. Vickery Christian Academy uses attendance data to calculate employee salaries. However, the problem that often occurs is the delay in attendance by employees because the attendance process o…
The internet network is used by various agencies to increase work effectiveness, one of which is Bapenda Kota Pekanbaru. However, in reality, this network performance can experience problems. The problem that often occurs at Bapenda is network disconnection due to overload on the network system. When this happens, the internet backup link is redirected manually, requiring an administrator to re…
Electrical components must be protected using an appropriate protection system, one of which involves using overcurrent relays. However, relay settings may not be field-tested if the relay does not operate. Due to the limited disturbance data available in the field, the installed protection cannot be tested for relay performance. The purpose of this research is to evaluate the existing conditio…
Along with the increasingly rapid development of the times, science and technology now provide more and more convenience in everyday life. Where science and technology are widely applied with machines or electronics, so that human work can be done easily without having to waste energy and can shorten time. Based on the background above, the author is interested in designing a vegetable watering…
This research presents the design of a 28 GHz bandpass filter with achieving 3.8 GHz bandwidth spanning 25.2 GHz to 29 GHz, targeting to use in 5G FR-2 band applications in the n257 and n258 bands. Implemented on a Rogers RT/duroid 5880 substrate with a dielectric constant of 2.2 and 0.508 mm thickness. The filter demonstrates low insertion loss, excellent impedance matching (VSWR close to 1.0)…
Globally, the number of diabetes sufferers is estimated to continue to increase. To measure glucose, blood needs to be drawn from the body. Invasive methods carry the risk of infection. Developing devices with non-invasive methods can reduce the risks of invasive methods. One way is to use machine learning. In this study, a comparison of the Artificial Neural Network (ANN) and K-Nearest Neighbo…
The International Diabetes Federation (IDF) provides data on diabetes in 2021, from this data it also shows that the number of diabetic patients in Indonesia reached 19.47 million people. Based on this data, Indonesia placed the fifth position as the country with the highest number of people with diabetes during 2021. Based on this fact, the reason for the implementation of periodic examination…
Scoliosis is a spinal deformity characterized by an abnormal curvature, typically shaped like the letter C or S. The exact cause of scoliosis is unknown, but the majority of cases (75-85%) are idiopathic scoliosis. Therefore, the aim of this research is to design an intelligent posture system using Internet of Things (IoT) technology for individuals with scoliosis. The "skoming" system uses fle…
The distribution of electrical power systems cannot be optimally utilized by consumers due to power losses occurring as a result of technical and non-technical disturbances. The causes of power losses in distribution lines are the resistance content in the conductors or the condition of the network itself, such as the increasing length of the network. Distribution networks are more susceptible …
Refillable gallon water is an essential need for modern society, given the convenience and practicality it offers. However, managing the sales of refillable gallon water often faces challenges such as lack of employee supervision and difficulties in profit calculation. This study aims to design and develop a Refillable Gallon Water Sales Monitoring System using the ZMPT AC sensor based on NodeM…
The increasing demand for refillable gallons of drinking water requires efficient solutions for sales management and inventory monitoring. In this context, we propose the design of a counter that uses PZEM and NodeMCU technology to monitor and record the number of gallons of water sold automatically. This tool is designed to increase the efficiency of the sales process, minimize calculation err…
The lecture attendance system is an important component in academic administration management to ensure student attendance. In this research, we developed a lecture attendance system using RFID (Radio Frequency Identification) sensors to increase efficiency and accuracy in recording attendance. This system consists of several main components, namely an RFID module, microcontroller, RTC (Real-Ti…
In the process of distributing electrical energy there are often disturbances caused by internal disturbances and external disturbances. External disturbances that often occur are lightning strikes. This disturbance can cause overvoltage, to anticipate the risk of transformer damage caused by grounding system failure. So a good grounding system is created. In electric power systems, grounding r…
Electric bicycles are now widely favored by the public. As an alternative vehicle that utilizes electric energy, the use of electric bicycles is very practical and does not produce emissions. The electric energy stored in the battery is converted into kinetic energy by the electric motor. The purpose of this study is to design a speed controller for the bicycle's drive motor using the Pulse Wid…
It is undeniable that the role of electrical energy is very important in people's lives in the current era of globalization. Therefore, to keep up with the rapid increase in electricity demand, it must be followed by improvements in the quality and reliability of the electrical energy produced. One that plays an important role in the distribution of electrical power is the transformer. In order…