Mobile (labile and water-soluble) forms of humus are one of the basic components of effective soil fertility and a precondition for high productivity of crop rotations.As a result of fermentation, these forms of humus are mineralised and take part in plant nutrition, and some of them, being included in mobilisation processes, transition into stable

To study the influence of wheel polygonization on the dynamic stress of the wheel axle, a vehicle-track rigid-flexible coupling dynamic model was established.In the model, the wheelset, axle box, and track system were modelled as flexible bodies to consider the influence of elastic vibration.At the same time, the dynamic stress on key positions of

Abstract The petrol truck routing Handling Equipment:Other Storage problem is an important part of the petrol supply chain.This study focuses on determining routes for distributing petrol products from a depot to petrol stations with the objective of minimizing the total travel cost and the fixed cost required to use the trucks.We propose a mathema

Sepsis-induced cardiomyopathy (SIC), with a possibly reversible cardiac dysfunction, is a potential complication of septic shock.Despite quite a few mechanisms including the inflammatory mediator, exosomes, and mitochondrial dysfunction, having been confirmed in the existing research studies we still find it obscure about the overall situation of g

We present a new approximation algorithm to the discrete facility location problem providing solutions that are close to the lexicographic minimax optimum.The lexicographic minimax optimum is a concept that allows to find equitable location of facilities serving a large number of customers.The algorithm is Shorts independent of general purpose solv