Blockchain is considered by many to be a disruptive core technology. Although many researchers have realized the importance of blockchain, the research of blockchain is still in its infancy. Consequently, this study reviews the current academic research on blockchain, especially in the subject...

Recently, Ord and Getis (Ann Reg Sci 48:529–539, <CitationRef CitationID="CR15">2012</CitationRef>) developed a local statistic <InlineEquation ID="IEq1"> <EquationSource Format="TEX">$$H_i$$</EquationSource> <EquationSource Format="MATHML"> <math xmlns:xlink="http://www.w3.org/1999/xlink"> <msub> <mi>H</mi> <mi>i</mi> </msub> </math> </EquationSource> </InlineEquation>, called local spatial heteroscedasticity statistic, to identify boundaries of clusters and to describe the nature of heteroscedasticity within clusters. Furthermore, in order to implement the...</equationsource></equationsource></inlineequation></citationref>

Breaking tests on homogeneous earth-rock-fill dams destroyed by overtopping flow are presented. Two types of shear erosion are found: wetting shear erosion and quick shear erosion; the water level-discharge process is divided into “sharp rise and drop of flow” and “slow change of flow”...

The exploration and development of oilfield results in damages to land resources. Along with the further development of petroleum in the Gurbantunggut Desert, the fragile ecological environment and land resource was suffering much more damage. Vegetation degradation and desertification become...