Dome-Shaped Space Trusses Formed by Means of Posttensioning

Design Optimization Of N-shaped Roof Trusses

Design optimization of a class of plane trusses called the N-Shaped Truss (NST) is addressed. The parametric model of NST presented is intended for real-world application, avoiding simplifications of the design details that compromise the applicability. The model, which includes twenty-seven discrete variables concerning topology, configuration and sizing of the truss, presents a challenging op...

THE OPTIMIZATION OF LARGE-SCALE DOME TRUSSES ON THE BASIS OF THE PROBABILITY OF FAILURE

Metaheuristic algorithms are preferred by the many researchers to reach the reliability based design optimization (RBDO) of truss structures. The cross-sectional area of the elements of a truss is considered as design variables for the size optimization under frequency constraints. The design of dome truss structures are optimized based on reliability by a popular metaheuristic optimization tec...

Multiple erythematous-yellow, dome-shaped papules.

Volume 82, Number 5 www.aafp.org/afp American Family Physician 517 A 15-year-old boy presented with papules concentrated on his bilateral forearms, elbows, knees, and trunk that arose suddenly five weeks earlier. The patient reported that the lesions became pruritic after showering. He had no personal or family history of similar lesions and took no regular medications. He was obese and had a f...

Space-Time Recovery of Arbitrarily Shaped Wave-Packets by Means of Three Dimensional Imaging Technique

We study numerically and experimentally self-focusing dynamics of femtosecond light pulses. By demonstrating the potential of three dimensional imaging technique for quantitative recovery of complex (arbitrarily shaped) wave packets, we monitor space-time transformation dynamics of 150-fs light pulse, which undergoes self-focusing and filamentation in water. Peculiar spatiotemporal and spectral...

Thermal Behavior of Domed Roofs, Case Study: Historical Dome-Shaped Roofs of Isfahan