Bush encroachment leads to land degradation in semiarid to arid regions. Over 45 million hectares of agricultural land in Namibia are affected. This is worrisome as nearly 70% of the Namibian population depends on agricultural activities and the beef industry is the mainstay of the farming communities. This study employed secondary data sources to provide a review of the problems and benefits o...

10 kV and 35 switchgear are the key equipment in power grid, safety of their insulation is related to stability entire grid. But accuracy traditional partial discharge detection method difficult meet requirements new SF6 insulated switchgear. This work analyzes feasibility using high-voltage sensor bushing detect discharge, analysis shows that synchronous signal can be obtained from sensor. Det...

Friction drilling Process is a rotating conical tool to penetrate the work piece and create a bushing in a single step without generating chips. This work investigates the finite element modeling (FEM) of large plastic strain and high-temperature work-material deformation in friction drilling. The workmaterial deformation is very large, and both the tool and work piece temperatures are high in ...

To investigate the performance of bonding on the interface between ZChSnSb/Sn and steel body, the interfacial bonding energy on the interface of a ZChSnSb/Sn alloy layer and the steel body with or without Sn as an intermediate layer was calculated under the same loadcase using the molecular dynamics simulation software Materials Studio by ACCELRYS, and the interfacial bonding energy under diffe...

The peculiarities of the formation elements crop structure and biological yield winter wheat seeds depending on genotype different technologies its cultivation have been clarified. seed depends structure, namely: number plants, productive stems, grains in an ear mass grain from one ear. It was found that with basic technology growing seeds, average three years mid-early mid-ripening varieties, ...

Two of the most common defects in rotating systems are abnormal wear of the bearing bushing and bearing misalignment. The present paper introduces a new fault diagnosis model that uses artificial neural networks (ANN) in order to identify the increase of wear depth and/or the increment of the misalignment angle. Reynolds equation is solved by FEM and provides data about bearing wear and misalig...