Intisari — Kelor merupakan tanaman herbal yang bermanfaat bagi kesehatan. Cara konsumsinya kebanyakan dengan diseduh setelah sebelumnya daun kelor dikeringkan dan diolah menjadi serbuk. Penelitian ini dilakukan untuk meningkatkan efektivitas crusher serbuk mengaplikasikan teknologi elektronika. Motor AC satu fasa memanfaatkan sistem kontrol Proportional Integral Derivatif (PID) memperoleh kecep...

buildings play an important role in the energy demand sector. due to the increase of environmentalconcerns and renewable energy sources restriction, lighting control systems will play an important role in the reductionof energy consumption of the lighting without impeding comfort goals. lighting control systems can control lightingconsumption according to the type of building, adequate luminanc...

In this paper, we simulated series arc on electric heaters, vacuum cleaners and incandescent lamps controlled by a dimmer to analyze the characteristics of series arc that causes electric fires. A high pass filter (HPF) was designed to detect arc signal only. The HPF consists of 2-stage coupling capacitors and detection impedance, and its low cut-off frequency of -3 dB was estimated to 3 kHz. B...

The luminance of a test within an inhomogeneous ("checkerboard") surround was adjusted to match the brightness of a comparison patch within a uniform surround. All stimuli were achromatic. Both surrounds had the same space-averaged luminance. With an incremental comparison patch, a test-within-checkerboard at a luminance between the luminances of the brighter and dimmer checks appears dimmer th...

<p>Bawang putih termasuk salah satu jenis tanaman holtikultura yang dilapisi oleh kulit tipis tidak dapat dimakan. Oleh karena itu, sebelum digunakan, bawang harus melalui proses pengupasan dilakukan dengan cara manual atau mesin. Pengupasan mesin akan mempercepat pengolahan paska panen dibanding manual. Bagian terpenting dari pengupas adalah bagian penggeraknya. Akan tetapi, banyak studi...

Circuit design for control of metabolism A transcriptional mechanism in yeast that allows cells to respond changes nutrient concentrations works very much like a household light-dimmer switch. That is, the system separately controls whether gene expression is “on” or “off” and extent expression. The galactose-responsive pathway activated when need switch from metabolizing glucose galactose. Ric...