Concrete performance is strongly affected by the particle packing degree since it determines the distribution of the cementitious component and the interaction of mineral particles. By using packing theory designers will be able to select optimal aggregate materials for preparing concrete with low cement content, which is beneficial from the point of cost. Optimum particle packing implies minim...

Remote sensing has shown its potential to assess soil properties and is a fast and non-destructive method for monitoring soil surface changes. In this paper, we monitor soil aggregate breakdown under natural conditions. From November 2014 to February 2015, images and weather data were collected on a daily basis from five soils susceptible to detachment (Silty Loam with various organic matter co...

Empirical research on ad auctions often aims to estimate model parameters (e.g., click probabilities) from aggregate data (e.g., average positions, total impressions, etc.). This is not surprising, because aggregate data are what the search engines reveal. But it has recently been pointed out that aggregate data can produce biased estimates [1]. In this work, we construct a disaggregated model ...

When we have several results of measuring or estimating the same quantities, it is desirable to aggregate them into a single estimate for the desired quantities. A natural requirement is that if the majority of estimates has some property, then the aggregate estimate should have the same property. It turns out that it is not possible to require this for all possible properties – but we can requ...

Abstract Concrete is the second most used material on earth after water. The current era of concrete making like coarse and fine aggregate need alternatives to overcome demand. In this present study, artificial or sand (AS) as an alternative has been investigated. parameters studied in study investigate AS effect are slump, modulus rapture, compression strength, split-tensile shear strength. ex...