Technological development make it easier for human to do their jobs, such as hatching machine. Hatching machine is a machine used to incubate eggs without having to be incubate by the parent and make it easier for poultry entrepreneurs. Temperature and relative humidity are the most important variables in the egg hatching process which will greatly affect the success of the egg hatching process…
Sensitizer or dye organic for sensitizing TiO2 nanocrystalline solar cells is intended as an alternative photovoltaics to silicon-based renewable. The use of silicon materials that are not environmentally friendly is one reason for the development of sensitizers or dyes organic to sensitize TiO2 nanocrystalline solar cells as an alternative to photovoltaic. The dye used in this study came from …
This study aims to analyze the level of noise and mechanical vibrations in the rice mill room received by the operator when operating the machine. The results of the measurement of the noise at a height of 150 cm on the first floor obtained the lowest noise level of 83.9 dB and the highest noise level of 101.3 dB. . At a height of 120 cm the lowest noise value is 84.2 dB and the highest noise v…