Gap between the steel tube and core concrete of Concrete-Filled Steel Tube (CFST) members is regarded as an initial imperfection, which may exist in CFST arch bridge due to construction process problems. In this paper, based on design scheme bolt-welded joints rib columns extra-long span bridge, effects two types imperfections, interfacial gap spherical-cap gap, mechanical properties Bolt-Welde...

The effect of (1) initial imperfections and (2) material degradation reinforced concrete columns on their safety in emergency situations was investigated. research limited to low- medium-flexibility columns. Numerical modeling proven regulatory methods analysis were applied determine the ultimate bearing capacity, taking into account supplementary dynamic loading by a longitudinal force bending...

Identifying novel topological properties of quantum states matter, such as exemplified by the quantized Hall conductance, is a valuable step towards realizing materials with attractive attributes that guarantee their imperviousness to realistic imperfections, disorder and environmental disturbances. Is gravitational coupling coefficient matter promising candidate? Substantially building on well...

The present paper is devoted to the numerical analysis and experimental tests of compressed bars with built-up cross section which are commonly used as a top chord roof trusses. significant impact on carrying capacity for that kind elements in case out-of-plane buckling appropriate choice battens provide interaction between separate members. Linear results nonlinear static results, material geo...

It is widely accepted that, on ensemble average, the transmission T of guided modes decays exponentially with the waveguide length L due to small imperfections, leading to the important figure of merit defined as the attenuation−rate coefficient α = −/L. In this letter, we evidence that the exponential−damping law is not valid in general for periodic monomode waveguides, especially as th...

The canonical Cosmological Time Function (CTF) is a tame global time function on matter-free maximal globally hyperbolic (2+1) spacetimes with compact space of genus g. In particular, when g ≥ 2, (CFT) is a solution of a relaxed constant mean curvature evolution problem; the connected components of a dense open set in each level surface Sa have both intrinsic and extrinsic constant curvature; e...

It is widely accepted that, on ensemble average, the transmission T of guided modes decays exponentially with the waveguide length L due to small imperfections, leading to the important figure of merit defined as the attenuation-rate coefficient α=-⟨ln(T)⟩/L. In this Letter, we evidence that the exponential-damping law is not valid in general for periodic monomode waveguides, especially as the ...

Fascicle curvature of human medial gastrocnemius muscle (MG) was determined in vivo by ultrasonography during isometric contractions at three (distal, central, and proximal) locations (n = 7) and at three ankle angles (n = 7). The curvature significantly (P < 0.05) increased from rest to maximum voluntary contraction (MVC) (0.4-5.2 m(-1)). In addition, the curvature at MVC became larger in the ...