Ahmad Ayyaz’s Post

I'm excited to share my latest scientific article published on the Springer platform. For those interested in gaining deeper insights into how geotextile materials enhance soil bearing capacity, feel free to check out the manuscript here: https://lnkd.in/dzxrxjmz #geotechnicalengineering #geotextiles #soilbearingcapacity #CBRtest"

Discover the future of soil science with LABROS. How can you streamline soil analysis without compromising on accuracy? Join us for Office Hours #15 as we delve into the cutting-edge LABROS system—a suite of advanced lab instruments that revolutionize soil characterization. Why LABROS? -Perform automated particle size analysis and obtain full soil moisture release curves. -Accurately measure saturated and unsaturated hydraulic conductivity from a single soil sample. -Seamlessly integrate instruments like PARIO, HYPROP, and KSAT for efficient workflows. Highlights of the session: Gain insights into how researchers are saving time and reducing errors with LABROS, designed to support environmental, geotechnical, and agricultural projects. Explore how automation and innovation are shaping the future of soil science. Watch now and see how LABROS can optimize your research: https://lnkd.in/gtGgSQct #soil #soilscience #soillab

🌟 Automatic Calibration of Soil Constitutive Models 🌟 #AutomaticCalibration of soil #ConstitutiveModels can be particularly challenging for optimisation algorithms - especially for cyclic loading. To tackle these challenges, we introduce #DEEM (Differential Evolution with Elitism and Multi-populations), a novel Differential Evolution algorithm that incorporates elitism and multi-population strategies. In our paper, we demonstrate that DEEM outperforms state-of-the-art DE algorithms in convergence and accuracy on CEC 2015, 2017, 2020, and 2022 benchmarks. Its application to the #AutomaticCalibration of soil #ConstitutiveModels highlights its practical impact. 📄 Check out the paper here: https://lnkd.in/eVKu-asg This research was co-authored with Simon Siegel and Hauke Zachert - all based at Technische Universität Darmstadt. #Optimisation #DifferentialEvolution #HeuristicOptimisation #AutomaticCalibration #GeotechnicalEngineering #ConstitutiveModels #DEEM

we need these roads in India

A new publication from our group demonstrates, for the first time, the real-time flow exchange between earthworm burrows and the surrounding soil. In addition to practical micrometric scale quantifications at drilosphere, this type of experiment will propel a breakthrough in mathematical modelling that integrates water movement and soil structural dynamics to a level of plot scale. https://lnkd.in/eQak7d47

📢 Read our Paper 📚 Analytical Model for Predicting Induction Times in Reverse Osmosis Systems with and without Antiscalants 🔗 https://lnkd.in/gCj5y6XR 👨🔬 by Abraham Sagiv et al. 🏫 Technion - Israel Institute of Technology #reverseosmosis #mineralscaling

An interesting geospatial application integrating remote sensing and hydrology 🛰

In this new paper led by research scientist Jicai Zeng, we studied how groundwater table fluctuations (GWT) change the leaching dynamics of PFAS in source zones. - GWT fluctuations enhance source-zone PFAS leaching, but the enhanced leaching is significantly reduced in heterogeneous source zones. - GWT fluctuations and lateral migration above the GWT lead to a downgradient persistent secondary source zone for longer-chain PFAS. - We develop simplified modeling strategies to estimate the lower- and upper-bounds of PFAS source-zone leaching under GWT fluctuations. https://lnkd.in/ggYFjFhD

Travel to the center of the Earth? What would you see if you could travel through the soil in a petroleum contaminated site? Science or fiction? Let E-Flux Clear-Well take you on a fascinating trip though the contaminated soil at a petroleum contaminated site. Our technology can clearly see field soils at a scale about the size of the thickness of a human hair. Images using white lights allow you to see the natural formation, while UV lights will reveal the fluorescence of contaminants and their distribution. You can see differences in contaminant behavior under water-saturated and unsaturated soils, preferential distribution of the contaminant in different soils, the presence of biogas upon contaminant degradation, roots enhancing the biological activity on the contaminant, and a whole lot more. The best of all is that once our Clear-Well is installed, you can repeat the trip at will using a portable instrument to track changes in time. Check this video and stay tuned for a fully commented version, identifying these processes in mind-numbing detail. Enjoy! https://lnkd.in/guSwkxsn

Each new field survey of NAPL using this exciting technology is fascinating!