Browse Items (65 total)
- Collection: Vol. 18, No. 2 2020
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TELKOMNIKA Telecommunication, Computing, Electronics and Control
Water bath sonicator integrated with PID-based temperature controller for flavonoid extraction
In this research, water bath sonicator was fabricated to extract bioactive
compound of plants material using sound energy (ultrasonic waves)
and heater. The bioactive compound, flavonoid, has high sensitivity to
temperature and extraction time and…
compound of plants material using sound energy (ultrasonic waves)
and heater. The bioactive compound, flavonoid, has high sensitivity to
temperature and extraction time and…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
DWT-SMM-based audio steganography with RSA encryption and compressive sampling
Problems related to confidentiality in information exchange are very important in the digital computer era. Audio steganography is a form of a solution that infuses information into digital audio, and utilizes the limitations of the human hearing…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Single object detection to support requirements modeling using faster R-CNN
Requirements engineering (RE) is one of the most important phases of
a software engineering project in which the foundation of a software product is laid, objectives and assumptions, functional and non-functional needs are analyzed and consolidated.…
a software engineering project in which the foundation of a software product is laid, objectives and assumptions, functional and non-functional needs are analyzed and consolidated.…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Bershca: bringing chatbot into hotel industry in Indonesia
Adopting technology could give competitive advantage and positively impact the hotel’s profitability, thus hotels should keep up with the latest hotel technologies. An important part in the hotel services is the customer service. A problem with the…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Matching algorithm performance analysis for autocalibration method of stereo vision
Stereo vision is one of the interesting research topics in the computer vision field. Two cameras are used to generate a disparity map, resulting in the depth estimation. Camera calibration is the most important step in stereo vision. The calibration…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
A performance of radio frequency and signal strength of LoRa with BME280 sensor
LoRa is a Radio Frequency module that can send packet data up to 3 km in FSPL.LoRa has 3 different Frequency Radios i.e, 915 MHz, 868 MHz, and 433 MHz. LoRa testing is based on different distances, BME280 provides Barometric Pressure, Temperature,…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
MPPT control of PV array based on PSO and adaptive controller
In general, Photovoltaic (PV) array is not able to generate maximum power automatically, because some partial shading caused by trees, clouds, or buildings. Irradiation imperfections received by the PV array are overcome by applying maximum power…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Three-level modified sine wave inverter equipped with online temperature monitoring system
Research and development on power converters are getting more interesting in recent years. It is also buttressed by rapid development in related fields, such as power semiconductor, digital advanced control, magnetic material and use of power…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
User stories collection via interactive chatbot to support requirements gathering
Nowadays, software products have become an essential part of human
life. To build software, developers must have a good understanding of
the requirements of the software. However, software developers tend to
jumpstart system construction without…
life. To build software, developers must have a good understanding of
the requirements of the software. However, software developers tend to
jumpstart system construction without…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Multicore development environment for embedded processor in arduino IDE
Internet of things (IoT) technology has found more applications that require complex computation while still preserving power. Embedded processors as the core of the IoT system approaches the need for computation by employing a parallel processor…