Unmanned aerial vehicles (UAVs), commonly known as drones, are a rising topic in remote sensing technologies for structural health monitoring. With technology advancement in cameras, the visual inspection method using drones is gaining much attention in the field of civil engineering. However, although visual inspection methods are feasible for finding cracks in structures, the limitations of i...

Structural Health Monitoring (SHM) is believed to reduce uncertainties in the operation of mechanical structures, and thus, increase safety. Strain measurements are often used conclude on health state a structure interest. In combination with elastoresistive materials, Electrical Impedance Tomography (EIT) can be monitor larger areas safety relevant structural components for strain changes that...

As an emerging technology for in-situ damage detection and nondestructive evaluation, structural health monitoring with active sensors (active SHM) plays as a promising candidate for the pipeline inspection and diagnosis. Piezoelectric wafer active sensor (PWAS), as an active sensing device, can be permanently attached to the structure to interrogate it at will and can operate in propagating wa...

BACKGROUND: This field-based investigation examined the congruence between skinfolds and bioelectrical impedance in assessing body composition in children. METHODS: Subjects were 162 female and 160 male children 10-15 years of age. Skinfold measures obtained at the triceps and medial calf and a leg-to-leg bioelectrical impedance system were used to determine percent fat using child-specific equ...

This article reviews the application of transient techniques in the elucidation of electron, proton and photon chemistry related to the catalytic subsite of [FeFe]-hydrogenase from the perspective of research in this area carried out at the UEA and Strathclyde laboratories. The detection of mixed valence states, bridging CO intermediates, paramagnetic hydrides and coordinatively unsaturated spe...

This paper presents a methodology for reducing the uncertainty related to the structural behaviour of an existing building in view of a vulnerability assessment regarding future earthquake actions. Estimating the lateral load resistance is a step towards evaluating the capacity of a structure to resist earthquake actions. The prediction of structural behaviour by numerical models is inevitably ...

The paper reports on the discussions at the ONR Workshop on Fracture Scaling, held at University of Maryland in June 1999, under the chairmanship of Z.P. Bažant and Y.D.S. Rajapakse. The workshop dealt with size effects in structural failure and scale bridging in mechanics of materials. The lectures at the Workshop were published in Volume 95 of this Journal. The objective of this paper is to p...

MOTIVATION The recent development of methods for modeling RNA 3D structures using coarse-grain approaches creates a need to bridge low- and high-resolution modeling methods. Although they contain topological information, coarse-grain models lack atomic detail, which limits their utility for some applications. RESULTS We have developed a method for adding full atomic detail to coarse-grain mod...

cast connections. ABSTRACT: Diagonal bracings are extremely popular elements for lateral load resistance in steel-framed buildings. In turn, the most common shape used for bracing members is the hollow structural section. While the design of such members is straight-forward, the design of gusset-plate connections at the member ends is controversial. This paper reviews the current ‘state-of-the-...

The maintenance and repair of bridges (and other large scale infrastructure projects) is a major area which could benefit from Structural Health Monitoring technology. Inspections on can take long time require many people, are therefore conducted infrequently. This low frequency inspection leaves the chance that damage dangerous critical failures occur during timeframes between inspections. It ...