Tujuan dalam kegiatan pengabdian kepada masyarakat ini adalah untuk meningkatkan kemampuan pedagogik guru dalam bidang TIK pada guru SMK Negeri 6 Kendari dan terdapat peningkatan kualitas pembelajaran dengan tersedianya media pembelajaran berbasis e-learning. Metode yang digunakan berupa metode ceramah, metode diskusi, dan metode praktek. Indikator keberhasilan kegiatan pengabdian kepada masyarakat ini adalah: (1) adanya respon positif peserta terhadap pelatihan pembuatan bahan ajar berbasis aplikasi e-learning XHTML editor; dan (2) Adanya produk bahan ajar yang dihasilkan peserta pelatihan yaitu bahan ajar berbasis aplikasi e-learning XHTML editor. Hasil dari kegiatan ini menunjukkan bahwa (1) para guru telah memiliki pengetahuan membuat bahan ajar berbasis aplikasi e-learning XHTML editor, (2) para guru telah memiliki bahan ajar berbasis aplikasi e-learning XHTML editor, dan (3) para guru telah memiliki pengetahuan dalam membuat dan mengembangkan bahan ajar berbasis aplikasi e-learning XHTML editor, (4) guru memiliki respon positif terkait kegiatan pelatihan pembuatan bahan ajar interaktif berbasis e-learning XHTML editor.
This study aims to provide new innovations in the use of Microsoft Power Point applications as interactive physics learning media on diode material. In addition, it motivates physics teachers to use technology in the implementation of learning in class. The target of this research is in the form of products resulting from the use of the Microsoft PowerPoint application as an interactive physics learning medium on diode material. This research method is research and development using a development model consisting of five stages, namely: (1) preliminary investigation; (2) design (3) realization/construction (realization/construction); (4) test, evaluation, and revision (test, evaluation, and revision); (5) implementation (implementation). The results of this study are the creation of interactive physics learning media through power point applications with the plomp model known as 5 stages, namely the initial investigation stage, design, realization/construction, test evaluation and revision and implementation. Power point interactive learning media is generally declared feasible to use after going through several trials carried out with material expert tests, media expert tests by looking at the results of the assessment of the two validators with a value obtained of 77.50 including the valid category for material experts and media experts obtaining a score of 78.46 is included in the valid category. It can also be seen that the effectiveness of learning media through the ability of student learning outcomes with a pretest score of 64.00 and a posttest score of 84.00 shows a significant increase in student learning outcomes.
Nanopartikel CoZnFe2O4 dengan struktur mixed spinel yang dienkapsulasi dengan PEG-4000 telah berhasil disintesis menggunakan metode kopresipitasi. Hasil analisis X-Ray diffraction (XRD) menunjukkan nanopartikel CoZnFe2O4 mempunyai karakteristik struktur spinel ferit dengan ukuran kristalit sebesar 14,4 ± 0,2 nm. Setelah dienkaspulasi dengan PEG-4000 ukuran kristalit sedikit menurun menjadi 9,7 ± 0,2 nm. Hasil analisis Fourier Transform Infrared (FTIR) untuk CoZnFe2O4 menunjukkan puncak serapan pada bilangan gelombang sekitar 401-563 cm-1 yang merupakan ikatan vibrasi M-O. Setelah dienkapsulasi dengan dengan PEG-4000 muncul vibrasi baru khas PEG yaitu C-O (1064 cm-1). Pada saat dienkapsulasi, ikatan M-O masih tetap muncul yang menandakan keberadaan nanopartikel CoZnFe2O4. Hasil Transmission Electron Microscopy (TEM) menunjukkan bahwa nanopartikel tampak mengalami aglomerasi. Setelah dienkapsulasi dengan PEG-4000 aglomerasi menjadi berkurang dan nanopartikel menjadi lebih terdispersi. Hasil analisis Vibrating Sample Magnetometer (VSM) menunjukkan nilai koersivitas CoZnFe2O4 adalah 251,9 Oe. Nilai koersivitas menurun menjadi 49,9 Oe setelah dienkapsulasi dengan PEG-4000. Hal ini disebabkan karena perubahan ukuran kristalit. Magnetisasi saturasi nanopartikel CoZnFe2O4 sebelum dienkapsulasi adalah 29,0 emu/g dan menurun setelah dienkapsulasi dengan PEG-4000 menjadi 19,7 emu/g. Hal ini disebabkan karena PEG bersifat paramagnetik dan nonmagnetik.
In this paper we study the problem of the characterization of group decoupled system for linear descriptor systems with index one using controllable subspaces. From the standard decomposition form, the linear descriptor systems can be separated into slow and fast subsystems. In this form, using controllable subspaces, we give some results for the characterization of input-output group decoupled for slow and fast subsystems, respectively. Furthermore, the characterization of the input-output group decoupling yields the normal forms for the input-output group decoupling of linear descriptor system with index one. This normal form can be used in order to define weakly coupled linear systems. All the results that have been obtained in this study can be used to determine the formulation of algorithms in solving the problem of linear quadratic optimal control that contains systems that are consider as weakly coupled subsystems.
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