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Information about counts and percentages of each type of leukocytes in blood is much needed to diagnose patients' illness. To gain that information, some functional enhancements had been applied to the optical microscopes so that they could produce digital images. Output images from these engineered microscopes were then extracted to get feature values from each image. These feature values then became...
In this study, the phenomena of multiple droplet impingements are investigated and observed experimentally. A high-speed camera was used to capture sequential images of multiple droplet impingements. Image processing technique was used to analyze the images from a high-speed camera. The effect of droplet frequency and Weber number to spreading ratio are investigated. The result of this study shows...
Performance of stratified thermal energy storage tank is strongly influenced by separation layer between the hot and cool water stored in the tank. This separation layer is evaluated from water temperature inside of the tank. However, difficulty in converting the temperature distribution into performance parameters has been found. In this research, determination of performance parameters from the...
Rotary cutting of rotor and stator laminations complements the available methods in the processing of electrical steel sheet. Furthermore, with this process, a technological answer to the production of ever-thinner laminations can be found in which high-speed stamping is reaching its technical limits. This paper explicates a finite element analysis for the rotary cutting process of electrical steel...
Companies in various fields of industry are competing to produce optimum products quality, including oil and gas industry. Consumer's demand for product quality also varies depend on the consumer's plant reqirements. Explored natural gas will be fractionated to serve a wide range of refined gas products. Distillation column is the most commonly used unit operation to separate in oil and gas industry...
Lung sounds can indicate a person's health condition. Lung sounds are generated from the air flow in the respiratory tract. Various of signal processing techniques are used for lung sounds analysis to reduce the subjectivity of the lung sound analysis. In this study, we propose lung sound signal analysis using first order statistic texture analysis on the spectrogram. The mean, variance, skewness,...
DVB-T2 (Digital Video Broadcasting Terrestrial Second Generation) standard is mainly intended to fix-reception service. Nevertheless, it is possible that some of enthusiastic users attempt to receive it in mobile environment. Therefore, formulating a technique for improving the reception quality is necessary, and exploring the received signal properties will be useful to do it. This paper presents...
A development of Human-Computer Interface (HCI) technology is proposed to estimate and investigate user's fatigue problem with non-invasive optical technique using web-camera sensor. Two kind of parameters are used such as heart rate (HR) as the physiological sign by processing the change of the skin color from face area and separating the signal color that normalized and analyzed using Independent...
Involving smartphone users in the smart transportation system is growing in this digital era. To encourage people to use public transportation, we develop a mobile application through gamification technique to support user involvement on public transportation in Indonesia. The system is called Bandung Smart Transportation Systems (BSTS), and reward system is adopted to give users more benefits. The...
Learning Management System (LMS) becomes more accessible to provide a virtual learning environment. The growth of pervasive and ubiquitous computing promotes development and improvement LMS rapidly. Shifting paradigm in designing LMS from technology-centered to user-centered design drives the developer to consider user experience as the primary concern to improve LMS. Therefore, evaluation and measurement...
Eel fish (Anguilla spp.) is catadromous fish species that born in saltwater, then migrate into freshwater as juveniles were growing into adults before spawning in the ocean. In the cultivation of eels enlargement, there are several factors that affect the growth of eels, such as water salinity (salt content in water), temperature, Dissolved Oxygen, current speed, acidity, and quality of water (or...
Each room in a building has a certain function, for example a lecture hall for learning and teaching activities. Electrical devices in the campus building commonly will be used in accordance with the schedule of room usage. In this paper, we proposed an indoor electrical device control system, which is able to adapt to the kinds of activities and the number of people. The system consists of controller...
Coordinate system is a basic topic in engineering students in our department. Some advance subjects use this topic as the basic knowledge for analysis both electrical and information technology study programs, such as electromagnetism and computer vision. Main function of them is to represent such a position of a matter in space. In delivering this topic, some problems came up when it was presented...
Improvement of the reception quality can be done not only at the transmitting-side, but also at the receiving-side. To design some techniques employable at the receiving-side, knowledge about the received signal properties is required. This paper describes local-variation of the DVB-T2 (Digital Video Broadcasting Terrestrial Second Generation) received-signal, based on the observation result of a...
Augmented reality becomes mature enough to create various applications for end users especially in education field. This is also supported by the presence of more affordable smart phones. The features offered by augmented reality applications could make students more easily understand the lessons and the learning process more fun. Most of current augmented reality applications still present information...
Given a series of overlapped images, it is possible to reconstruct camera position and orientation, as well as 3D coordinates of object in the images. Such method is known as Structure from Motion (SfM), which is currently implemented in various commercial and open source software. The first software commonly don't provide Sfm algorithm. While the latter software are commonly developed partially....
The essential function of the learning management system (LMS) is to manage and the learning object. Therefore, storage capacity becomes critical component when the content and the user is growing. Some of the existing LMS experience problems to store many files because of limited storage capacity and also the inability of the LMS has scalability on the storage. This paper makes an effort to improve...
Programmable Logic Controllers (PLC) are widely used in industrial to run an automated system. PLC must have some means of receiving and interpreting signal from another device such as sensors and switches. There are two main type of PLC input, discrete and analog. Arduino was built as a bridge or interface adding the capabilities of Siemens PLC CPU1215C to receive another type of input. In this study,...
Evolution and maintenance processes are important but time consuming and expensive. It is very important to make the processes effective and efficient. A software developer can use resource like user opinion data to get information, such as user request, bug report, and user experience. It represents user needs and can be used to help allocate the necessary effort of software evolution and maintenance...
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