This pilot study was conducted with the aim to validate the instrument used in evaluating the competency of teachers in the field of technical and vocational education. This instrument consists of 45 items and is administered to 53 teachers from a selected vocational college. The Rasch Model with the help of the Winstep Version 3.72.3 software has been used in this study for the purpose of checking the functionality of the item and the validity of the instrument. An analysis has been made based on the suitability of items in measuring the construct, item and person reliability and separation index, polarity and residual correlation value. The Rasch analysis showed that the item reliability was valued at 0.92 while the person reliability valued at 0.96 with their item MNSQ between overfit (<0.6) and misfit (>1.4). Based on the findings, there are three items that were dropped because of failing to meet the inspection criteria. The finalized instrument consists of 42 items, in which it is suitable for evaluating the four constructs in the competency evauation of technical and vocational teachers in vocational colleges.
Fuzzy logic is a reasoning method for solving linguistic problems that cannot be solved mathematically. The application of fuzzy logic from our development program regarding the development of exhaust fans with fuzzy logic controllers to regulate air flow velocity in accordance with air conditions in a room. Using a gas sensor and a temperature sensor will create a number of conditions to then be treated in a fuzzy logic system using the Mamdani method. The process that occurs in the Mamdani fuzzy includes four stages including the process of calculating the fuzzy set (fuzzification), the application of the implication function, the composition of the rules to the last stage, the defuzzification process. The inter elements of the mamdani fuzzy process are interconnected in the sense that the order determined by fuzzy mamdani cannot be removed or replaced by another. Development that has been done related to the exhaust fan uses two sensors namely the temperature sensor and gas sensor. Used as a detector for the amount of harmful gas in a room so that it activates the exhaust fan to eliminate it at a speed consistent with the gas content in the room. Also used to measure the temperature of the room and then activate the exhaust fan so that the room can be inhabited comfortably. Fuzzy logic controller system is used to adjust the rotational speed of the exhaust fan.
<p>Virtual Trainer of Mobile Augmented Reality (AR) -based Electrical Lighting Installation is a technology that can be utilized as a substitute for conventional trainers to modern virtual-based trainers. The use of virtual trainers Electric lighting installation can be used anywhere and anytime with the help of an Android-based smartphone device. The use of AR technology is a technological development that helps users be able to interact directly with lighting installation components in a virtual form that has been designed to resemble the actual form. This study applied AR technology to learning aids called virtual trainers in the field of electrical lighting installations specifically residential. In running a virtual trainer application, several procedures must have been performed before it became an application that was ready to use. The results of this study were virtual trainers as an aid in understanding the components of residential electric lighting installations with AR mobile technology. This application system simulated 3D of 1 phase electrical lighting installation components in residential homes.</p>
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.