We consider the problem of designing optimal M × N (M ≤ N ) sensing matrices which minimize the maximum condition number of all the submatrices of K columns. Such matrices minimize the worst-case estimation errors when only K sensors out of N sensors are available for sensing at a given time. For M = 2 and matrices with unit-normed columns, this problem is equivalent to the problem of maximizin...

The Chinese traditional architecture called as DaMu structure, which wooden materials were used mainly. The work of historic heritage conservation needs the surveying maps and the 3D model of the building. Laser scanning techniques can provide the best potential for high efficient and more safety recording of the 3D data. Recently, Terrestrial Laser Scanning (TLS) has been used in some architec...

the understanding of the dynamic behavior of distillation columns has received considerable attention because distillation is one of the most widely used unit operations in chemical process industries. this paper reports a dynamic simulation study of the possible distillation columns sequences of dew pointing unit in the second phase of south pars gas refinery. in this unit, three columns are u...

mosques always during the islamic period have been as a particular species manifestation of taste and skill of real artists, and like a large canvas have displayed the set of popular arts in any period. in the meantime, stone , despite the difficulty in extracting and cutting, not abandoned ,and at  beginning of the qajar dynasty, trimmer of  this period  following the order and recommend of ma...

S Antonio de Valero is a former Roman Catholic mission and fortress where the Battle of the Alamo occurred from February 23 until March 6, 1836. Now known simply as the Alamo, this compound has been damaged, ransacked, and renovated many times before work on its present configuration as a museum in downtown San Antonio, Texas, USA, was completed in 1968. Texas artist Eileen Pestorius used water...

Jacketing of reinforced concrete columns is a common and useful strengthening method. This method substantially improves mechanical properties of the column, such as flexural strength as well as shear and ductility. In this paper, the behavior of confined reinforced concrete columns are investigated. The results indicate that the method is more effective for slender columns in the region of the...

Foreign body ingestion is common, although perforation after ingestion is rare. We report a case of an ingested sharp wooden stick that perforated the proximal jejunum toward the renal vasculature, causing segmental renal artery thrombosis and renal infarct. The patient presented with severe abdominal pain and vomiting. A computed tomography scan revealed a linear opacity corresponding to the f...