Ordinary Portland Cement (OPC) is a fine, gray powder made from a blend of limestone, clay, and a few additional minerals When it comes to choosing the right cement for a construction project, OPC ...

Abstract: Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal propagation in wireless networks. By smartly tuning the signal reflection via a large number of ...

Abstract: Distributed optical fiber sensor based on optical frequency domain reflectometer (OFDR) preserves its dominant position in strain measurement fields with high sensitivity, spatial resolution ...

From lens focal lengths and fill-flash to portraits, macro or stunning landscapes there are techniques for everyone. Learn how to use metering, considering composition and shoot everything from ...