Abstract Spiral, one incredibleindiatourtravels.com of the most well-known functional patterns in nature that can be observed in structures such as the proboscis of lepidoptera and snail shells or as vortices forming in flowing fluids, has long served as a source of inspiration for humans in the creation of numerous spiral-based designs.Double-spir
Augmented UWB-ZUPT-SLAM Utilizing Multisensor Fusion
This article proposes a generalized UltraWideBand (UWB)-Zero-velocity-UPdaTe (ZUPT)-simultaneous localization and mapping (SLAM) algorithm, a SLAM approach, utilizing a combination of foot-mounted localization systems integrating inertial measurement units (IMUs), UWB modules, barometers, and dynamically-deployed beacons incorporating UWB, IMUs, an
Explosion in an Exhaust Line of a Chemical Reactor
An explosion occurred in the exhaust line to the scrubber during a cleaning procedure with concentrated nitric acid in a chemical reactor.Previously the reactor was treated with methanol under reflux and afterwards rinsed with drinking water.The detonation destroyed completely a section of a PN 16 condensate pipe after a flame arrestor.Glass piping