An Appraisal of Qualifying Role of Hydraulic Heritage Systems: A Case Study of Qanat in the Central Iran

Hydraulic heritage systems, both underground and exposed, have been known to be sustainable for millennia. Persian and also Roman aqueducts are examples of such hydrosystems. Their value is often overlooked but they have undeniable advantages: they have functional interconnectedness with their surrounding society and ecology, which sometimes...

The development of a strength grading system for small diameter roundwood

Roundwood as a construction material is becoming more and more interesting to users. Using this wood in construction will increase the value of the material and may open new opportunities for construction design. In order to use round wood for this application, suitable connectors andlor joints have to be developed, but before all, the strength...