This study aims to: (1) determine the process of developing a learning media simulator for electro-pneumatic systems based on dual design, (2) knowing the effectiveness of learning media in the form of electro-pneumatic system simulators based on dual design. This research is a research and development adapted from the 4D development model, namely Define, Design, Develop and Disseminate. The subjects of this study were students of Mechanical Engineering Education in Semester IV and V with 30 students taking pneumatic hydraulic courses. Data collection techniques in this study used questionnaires and interviews with research instruments in the form of interview guidelines and questionnaires. The data obtained were analyzed with descriptive quantitative. The results showed (1) The results of the development of learning media for electro-pneumatic system simulators based on Dual Design as supporting media for electro-pneumatic practices produced 3 main components, namely the working system in the pneumatic electro system, wiring diagrams and electrical circuits, (2) the feasibility results of expert validation media is 84% (Very Good), expert material validation is 92% (Very Good), and user validation is 86% (Very Good). So, the learning media for electro-pneumatic system simulator is feasible as a learning media in pneumatic hydraulic courses.

Energi merupakan suatu hal penting untuk menunjang kehidupan manusia, dengan banyaknya kebutuhan maka perlu dilakukan pembaharuan tentang energi salah satu nya energi terbarukan. Biogas merupakan salah satu energi terbarukan yang dapat digunakan sebagai pengganti energi fosil. Kemurnian biogas yang dihasilkan dari digester belum optimal sehingga perlu dilakukan purifikasi untuk meningkatkan kandungan metana dan menurunkan kandungan karbondioksida. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh jenis adsorben terhadap kandungan metana dan kandungan karbondioksida. Metode yang digunakan dalam penelitian ini menggunakan metode adsorpsi dan menggunakan dua tabung adsorben susunan seri yang berisi zeolit dengan zeolit, zeolit dengan karbon aktif dan zeolit dengan geram besi. Dari hasil penelitian saat sebelum dilakukan purifikasi kandungan metana 6088 ppm dan kandungan karbondioksida 15927,6 ppm, sedangkan setelah dilakukan purifikasi terdapat perbedaaan pada masing-masing adsorben yaitu zeolit dan zeolit 26750,6 ppm dan 5333,2 ppm, zeolit dengan karbon aktif 18621,2 ppm dan 8331,1 ppm, dan zeolit dengan geram besi 12368,4 ppm dan 10718,3 ppm. Penggunaan adsorben zeolit dan zeolit mengalami peningkatan kandungan metana tertinggi yaitu meningkat 20662,6 ppm dari sebelum dilakukan purifikasi dan kandungan karbondioksida menurun sebesar 10594,4 ppm dari sebelum dilakukan purifikasi.

This study aims to find out how much understanding of SMK teachers in the implementation of the 2013 revision curriculum 2017. Curriculum issues 2013 revision 2017 is the preparation of Learning Implementation Plan (RPP), learning activities and implementation of assessment. Understanding teachers less will have an impact in the learning process because the learning itself is a reference curriculum in the delivery of material, so that the learning process does not work properly. The government's strategy to prepare teachers in the implementation of the 2013 curriculum of 2017 revision from socialization, training, mentoring and evaluation has been implemented, so that the new curriculum is going well. This research is descriptive qualitative research. The method used is descriptive. The subjects of this study were teachers of SMKN 1 Cikande, SMKN 2 Serang City, SMKN 1 Cilegon City and SMKN 2 Pandeglang City. Data collection techniques used were questionnaires and interviews. Based on the results of the researchers do with data collection techniques and interviews using eight indicators 1) syllabus, 2) details of the effective week, 3) annual programming, 4) semester program, 5) core competence / basic competency 6) learning implementation plan, 7) academic calendar and 8) evaluation tools conclude that SMK teachers in Banten have an understanding of the 2017 revision curriculum in 2017 including the good category with the percentage of 80%. The results of the understanding of the 2013 revised curriculum 2017 in Banten Province is the lack of monitoring and training conducted by the government and the school, so that teachers do not all understand and implement the curriculum.