Inverter is an electronic device that functions to change current direct (DC) into alternating current (AC) with the magnitude of the voltage and frequency can be adjusted, the output of an inverter in the form of AC voltage in the form of a square wave. Then testing with different types of Step Up CT transformers to get the test results and analysis. And the working principle of this inverter circuit is that the TIP122 and 2N3055 Transistor driver pulses are generated by the IC CD4047 pulse generator, the pulses of the Astambil Multivibrator circuit are 2 pulses with a phase that reverses 180º. The Q and Q pulses are used to provide drivers to the TIP122 and 2N3055 transistors and will induce the Step Up Transformer in turn. So the Step Up Transformer will be able to induce in 2 directions from the CT point. because of the induction process, the transformer primary will provide an AC voltage of 220 volts with a square wave shape. This type of inverter can only be used for lamps, the price is cheaper because it is used to back up the lamp.
Pesatnya perkembangan mobil listrik membuat banyak produsen otomotif berlomba mengembangkan teknologi mobil listrik mereka sendiri. Dari sisi pengaturan performa, mobil listrik lebih banyak menyediakan fleksibilitas daripada mobil konvensional, sehingga implementasi kontrol yang lebih mutakir menjadi lebih memungkinkan. Saat ini salah satu sistem kontrol yang tersedia dan dikembangkan pada mobil listrik adalah Torque Vectoring. Pada penelitian ini dilakukan pengembangan algoritma sistem Torque Vectoring beserta sistem kontrolnya melalui pemodelan dan simulasi MATLAB-Simulink. Metode kontrol yang digunakan adalah kontroler PID. Variabel yang diukur untuk melihat keefektivitas sistem Torque Vectoring adalah yaw rate, sudut kemudi, sudut sideslip, traksi pada setiap ban, percepatan longitudinal dan lateral, kecepatan longitudinal, slip longitudinal di setiap ban, dan torsi output di setiap roda. Dari penelitian ini dapat disimpulkan bahwa algoritma sistem Torque Vectoring yang dikembangkan mampu meningkatkan stabilitas pengendalian mobil listrik. Sistem Torque Vectoring tersebut mampu beroperasi pada berbagai kondisi jalan dan manuver mobil, sehingga mobil dengan sistem Torque Vectoring lebih dapat dikendalikan dan stabil jika dibandingkan dengan mobil tanpa sistem Torque Vectoring.
The purpose of this study was to test empirically the effect of perceived entrepreneurial feasibility and attitude towards entrepreneurial intentions with a sustainable orientation. The population of this study was students of the Universitas Tarumanagara, Faculty of Economics and Business. The number of sample used in this study was 170 respondents. The sampling technique used was non probability sampling with purposive sampling method. Overall the results and conclusions of this study are: 1) Perceived entrepreneurial feasibility has a positive and significant effect on entrepreneurial intentions that are oriented sustainably on students of the Tarumanagara University’s Economics and Business Faculty. 2) Attitude has a positive and significant effect on entrepreneurial intentions that are oriented sustainably on the students of the Tarumanagara University’s Economics and Business Faculty. Tujuan penelitian ini adalah untuk menguji secara empiris mengenai pengaruh perceived entrepreneurial feasibility dan attitude terhadap niat kewirausahaan yang berorientasi berkelanjutan. Populasi dalam penelitian ini adalah Mahasiswa/I Fakultas Ekonomi dan Bisnis Universitas Tarumanagara. Sampel yang digunakan pada penelitian ini yaitu 170 reponden. Teknik pengambilan sampel yang digunakan yaitu non probability sampling dengan metode pengambilan sampel purposive sampling. Secara keseluruhan hasil dan kesimpulan dari penelitian ini yaitu: 1) Perceived entrepreneurial feasibility berpengaruh positif dan signifikan terhadap niat kewirausahaan yang berorientasi berkelanjutan pada Mahasiswa/I Fakultas Ekonomi dan Bisnis Univeristas Tarumanagara. 2) Attitude berpengaruh positif dan signifikan terhadap niat kewirausahaan yang berorientasi berkelanjutan pada Mahasiswa/I Fakultas Ekonomi dan Bisnis Univeristas Tarumanagara.
Makalah ini mengkaji kembali paper [2] tentang penentuan bilangan kromatik lokasiuntuk graf kembang api Fn,k, dimana k = 2, 3 dan n ≥ 2.
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