Apply CTL for learning media in the form of Flip Books. This research was conducted at SMAN 2 Bekasi from April to May 2019 as the field-testing phase which used Physics Flip Book media. The method of learning model ADDIE including the stages to develop this model. The Physics Flip Book display used the Kvisoft Flip Book Marker 3.6.1 software whose content is supported by several software, such as Camtasia 2018, Movie Maker and PDF. Results of validation test showed score 82.0% for material validation, 82.8% for media validation, and 81.20% for learning validation. The result of this research, 10 of 25 items were valid by using product moment validation test, 0.74 for the reliability test result by using Alpha Cronbach and 0.52 for the Flip Book effectiveness by using N-gain test. The results showed that using CTL-based Flip Books can improve physics problem solving skills in students.
In this work, the microwave absorption performance of barium hexaferrite multi-nanolayers synthesized by aceramic method was investigated. The microwave absorption performances of BaFe12O19 and BaCoZnFe10O19 multi-nanolayers with thicknesses
of 25, 50, 75, 100, 200, 300, 500, and 1000 nm were evaluated using a vector network analyser (VNA) at room temperature to characterize the reflected signal (S11) and transmitted signal (S21) in the frequency range of 7–13 GHz. The microwave absorption
performance of the multilayer structure was enhanced due to the combination of nanolayers. The optimal absorption performance was achieved with a reflection loss of less than –30 dB (99.9% absorption) for a layer thicknesses of less than 500 nm.
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