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The GMA Techline
February 1st, 2020
Moderated by George R. Koerner and Y. “Grace” Hsuan DARCIAN PERMEABILITY Q: I am aware of the section in your book regarding geomembrane “permeability” and get from it that it aims to calculate an equivalent Darcian permeability using vapor diffusion via Fick’s law. Can one use the derived permeability then when calculating flow using Darcy’s […]
Leister introduces SEAMTEK W-900 AT low-voltage wedge welder
October 12th, 2018
Leister Technical Textiles has released the SEAMTEK W-900 AT low-voltage wedge welder, an energy efficient and safe welder with direct transmission of power to a thin welding wedge. The W-900 welds at a speed of 98 feet (30 m) per minute, uses no energy when in standby mode, can reach the desired target temperature in […]