The fragility of concrete-filled steel tubular (CFST) frame structures with buckling-restrained braces (BRBs) subjected to multiple earthquakes is studied in this paper.First, a fiber beam element model with rate-dependent concrete and steel material properties is developed for CFST members and, then, the effect of the strain rate on the seismic re
Current predictions for future operations with drones estimate traffic densities orders of magnitude higher than any observed in manned aviation.Such densities call for further research and innovation, in particular, into conflict detection and resolution without the need for human intervention.The layered airspace concept, where aircraft are separ
While investigating the potential for Arctostaphylos species to hybridize in the mixed populations of Point Sal and Burton Mesa in Santa Barbara County, California, we discovered that Arctostaphylos from the Nipomo Mesa (San Luis Obispo County), formerly considered a northern population of A.rudis, are genetically and morphologically distinct.We na
Since the beginning of the industrial revolution, processes of different scales have contributed greatly to the pollution and waste 3 Layered Christmas Shaker Ornament load on the environment.More specifically, airborne pollutants associated with chemical processes have contributed greatly on the ecosystem and populations health.In this communicati
Recording Media Accessories Liner merupakan komponen terpenting dalam fasilitas tempat pengolahan akhir (TPA) sampah untuk mencegah lindi mencemari tanah.Bahan yang sering digunakan sebagai liner adalah tanah lempung yang memiliki permeabilitas rendah.Salah satu tanah lempung alami yang dapat digunakan sebagai liner TPA adalah bentonit.Bentonit mem