The current paper studies the global and local interaction behaviour of box-section columns using numerical simulations by creating a model analysing their buckling resistances to pure compression. developed uses combination imperfections as well residual stresses, which are key parameters resistance calculation. unique approach in is that all previous applied safe sided imperfections, while th...

The mechanical properties of the lungs were measured in the sitting and supine positions in 5 normal subjects and in 5 patients with orthopnea due to congestive heart failure. The patients had higher elastic and viscous resistances in the sitting position. Recumbency increased both resistances in both groups but there was a disproportionate increase in the viscous resistance of the patients. Th...

Interfaces dominate the thermal resistances in aligned carbon nanotube arrays. This work uses nanosecond thermoreflectance thermometry to separate interface and volume resistances for 10 microm thick aligned SWNT films coated with Al, Ti, Pd, Pt, and Ni. We interpret the data by defining the nanotube-metal engagement factor, which governs the interface resistance and is extracted using the meas...

The uptake of mercury vapor by six gramineous plant species was compared under uniform conditions using a whole-plant chamber and (203)Hg-labeled mercury at a low atmospheric concentration. Mean Hg uptake by leaves of the C(3) species oats (Avena sativa), barley (Hordeum vulgare), and wheat (Triticum aestivum) was 5 times greater than that by leaves of the C(4) species corn (Zea mays), sorghum ...

ground skidding on skid trails affects the physical properties of soil. the objective of this study was to evaluate changes in soil physical properties on skid trails formed due to traffic of metal-tracked skidders with regard to soil bulk density, total porosity, water content and penetration resistance. the studies were implemented on two levels of slope – 20% (sc2) – and three levels of traf...

The objective of this article is to analyze journalists’ overt and covert resistances. Drawing on the typology resistance Hollander Einwohner, as well fieldwork in one Mexican journalism’s capitals, Tijuana, four types are examined: 1) relations deference, 2) information blocking, 3) workloads, 4) editorial censorship. These strategies intermingled allow what organizational structures often pre...