The speed ratio parameters of transmission are crucial factors that affect a vehicle’s power, economy, and comfort. Due to the complex working conditions, multiple modes, wide range ratios agricultural tractors, designing optimizing in power-shift transmissions is challenging task. This paper proposes optimization method based on life cycle utilization rate general-purpose tractors. optimized s...

The article describes the new application of a well-known protection criterion - Vector Shift (VS). In paper, technical problems related to utilization this have been described. Additionally, authors conducted laboratory tests digital relay. impact different disturbances occurring in power systems on operation has examined. obtained results proved validity banning some countries. Furthermore, n...

In this paper altitude measurement from water surface using laser beam is presented. Research data indicate that the reflection of infrared waves from water surface is about zero and it is less than 2% for visible radiations. Phase-shift and heterodyne technique was used for the measurement, and the laser beam ( mW p nm 10 , 700 = = l ) was modulated by a sine wave having a fixed frequency....

International development has long been dominated by primarily white-led, Global North organizations. These organizations are raising money in the and doing work South, with intended benefit to less economically developed communities. In recent years, there a significant increase activism calls both South for localization of development, humanitarian aid, peacebuilding efforts an attempt addres...

To meet the working performance demand of cotton pickers, a hydrostatic power shift composite drive system design is proposed. This study aims to enhance driving function picker in various conditions and improve its adaptability by combining speed control with mechanical structure. achieve this, single variable pump + double motor closed circuit adopted. By adjusting displacement stages, can be...