To study the mechanical effect of clay under acidic and basic conditions, typical clay minerals, montmorillonite and illite, were taken as the main research objects in this study.The variation law and mechanism of the cohesive force and internal friction angle were studied by immersing the remoulded soil in HNO3 solution with pH = 3 and NaOH (alkal
The Snowdrift Game, also known as the Hawk-Dove Game, is a social dilemma in which an individual can participate (cooperate) or not (defect) in producing a public good.It is relevant to a number of collective action problems in biology.In a population of individuals playing this game, traditional evolutionary models, in which the dynamics are conti
An entirely unelected Upper House looks, at first sight, to sit uneasily with a XXIst century democracy.In this context, the House of Lords has had to carve Gift cards out its own role in the British constitutional settlement.Since the reforms of the beginning of the XXIst century, its legitimacy and positions have shifted.This article focuses on a
Abstract Background Improving cotton fiber length without reducing yield is one of the major goals of cotton breeding.However, genetic improvement of cotton fiber length by breeding has been a challenge due to the narrow genetic diversity of modern cotton cultivars and negative correlations between fiber quality and yield traits.A multi-parent adva