This paper presents a new approach to machine health monitoring based on the Approximate Entropy (ApEn), which is a statistical measure that quantifies the regularity of a time series, such as vibration signals measured from an electrical motor or a rolling bearing. As the working condition of a machine system deteriorates due to the initiation and/or progression of structural defects, the numb...

In the solid state, salophen-UO2 complexes bearing one, two, or three NO2 groups lack the pronounced ligand curvature that represents a structural hallmark for this class of compounds. A detailed structural study based on single-crystal X-ray crystallography and computational methods, comprising molecular dynamics, gas-phase Hartree Fock, and DFT calculations, was carried out to investigate the...

A study of renal biopsy in 13 lithium treated patients is reported. The light microscopic changes were non-specific and comprised glomerular hypercellularity; cloudy swelling of the tubular epithelium and interstitial fibrosis. Correlation between structural changes and functional alterations could not be established. The duration of therapy did not have any bearing on the intensity of the stru...

Structural glass combined with a timber frame is a composite system that has a predisposition for good behavior during an earthquake, it is energy-efficient and cost-effective, aesthetically acceptable and has a good load-bearing characteristics. In recent years, several research projects of composite systems timber structural glass are in progress and according to the present results basic gui...

Early design decisions made on building configuration and spatial design affect seismic behavior of buildings. Therefore introducing design guidelines and empirical methods implemented to assess seismic behavior of buildings have been proposed as an appropriate approach. Such concept helps architects to take into the consideration that how their preliminary design decisions influence downstream...

The article deals with the production of polystyrene concrete from recycled crushed in a rotary crusher waste foam packaging. resulting can be attributed to thermal insulation, used for insulation load-bearing structures buildings, as well structural and bearing layer outer walls low-rise buildings. dependence conductivity sample on density strength has been established, resistance shock loads ...

Reducing the settlements of soft foundation effectively is a critical problem of high-speed railway construction in China. The new CFG pile-slab structure composite foundation is a ground treatment technique which is applied on CFG pile foundation and pile-slab structure composite foundation. Based on the experience of constructing Beijing-Shanghai high-speed railway in China, the settlement-co...

We have developed a novel representation of protein motifs that permits the rapid discovery of structural features in sets of protein sequences with a common structure or function. Many popular methods for representing protein motifs (consensus sequences, weight matrices, profiles, etc.) emphasize conservation of amino acids at specific sites in the sequence. Our method looks for correlations b...

Load-bearing biological materials such as shell, mineralized tendon and bone exhibit two to seven levels of structural hierarchy based on constituent materials (biominerals and proteins) of relatively poor mechanical properties. A key question that remains unanswered is what determines the number of hierarchical levels in these materials. Here we develop a quasi-self-similar hierarchical model ...