Abstrak—Direct Digital Synthesizer (DDS) merupakan metode pembangkit gelombang analog secara digital dengan cara membangkitkan sinyal digital yang berubah-ubah terhadap waktu kemudian diubah kedalam bentuk analog menggunakan…
Direct Digital Synthesizer (DDS) applies a method to generate an analog waveform in a digital manner, which is formed by generating a digital signal that varies with time and converting it into analog form using a digital to analog device (DAC). IC…
Abstract. The aims of this study is to evaluate the effect of the mercury nitrate (Hg(NO3)2) on the histological of the liver structure of Asian seabass (Lates calcarifer Bloch) fingerling which reared in the sea water. The fingerling liver tissue…
This research is motivated by electrical power shutting-down that frequently occurred in Riau province. Low electrical power supply as compared to the need causes lack of supply. Thus, new alternative electrical energy resource such as micro hydro is…
Monitoring the output parameters of a solar module is required for assessing its performance under real operating conditions. This paper presents a new technique for monitoring the output parameters i.e. current and voltage of solar module directly…
This system was designed to monitor the condition of traffic by measuring the speed and density of vehicles on the road. This system uses Light Dependent Sensor (LDR) that can detect the vehicles when there is no light stimulus. Light Dependent…
ABSTRAK. Penelitian ini bertujuan untuk mempelajari pemangsaan C. coeruleus terhadap kutu putih papaya P. marginatus. Masing-masing predator dari setiap tahap perkembangan diberi mangsa pada kondisi dengan pilihan dan tanpa pilihan stadia mangsa,…
Pertukaran ion antara Cr3+ dan H+ menggunakan zeolit sebagai penukar ion adalah salah satu metode untuk memurnikan air dari ion kromium. Zeolit adalah senyawa aluminosilikat tetrahedral dengan struktur ikatan 3-dimesi, memiliki pori bagian dalam, dan…