A hydraulic scissor lift is used for lifting system in different sectors like industrial, construction and service sectors. These systems are mainly preferred to do maintenance, repair and clean. In Ethiopia the lifting ...

This study is conducted to assess the distribution of ergonomics risk factors and the magnitude of occupational injuries among the construction workers in Bahir Dar city, Ethiopia. To achieve this objective a cross-sectional ...

Solar tracking systems benefits by escalating the energy absorption rate in the morning and evening periods. More specifically, in the near equatorial regions, passive type with bimetallic strips activator solar trackers ...

A solar dryer assisted by biomass back-up heater was designed and manufactured from locally available materials to dry maize. This study tried to address the problem associated with the fact that solar dryers are efficiently ...

To study the drying of red pepper in mixed mode and open sun solar drying system experiments at Bahir Dar climatic conditions were carried out. The solar dryer consists of a double pass solar collector integrated with ...

Despite impressive advances being made in the past decades, there are still genuine technical challenges in the thermal administration of electronic devices or microprocessors. The performance and reliability ...