Reliable prediction of traffic loads is essential for bridge planning and design. In the study, an improved unbiased Grey Markov forecasting model is applied to predict traffic loads on highway bridges. The comparison between the predicted results and existing practical measurements indicates that high accuracy can be achieved by using the developed model for bridge load prediction. The develop...

MINERAL ASSEMBLAGES FROM LONG TERM EXPERIMENTS. S. P. Schwenzer, J. C. Bridges, M. A. Miller, L. J. Hicks, U. Ott, J. Filiberto, C. Chavez, H. Smith, A. H. Treiman, S. P. Kelley, J. M. Moore, T. D. Swindle, M. A. Bullock – The Open University, Walton Hall, Milton Keynes MK7 6AA, UK, [email protected]; Space Research Centre, University of Leicester, UK; Southwest Research Institute, 6...

AIM To assess survival rates and complications of root-filled teeth restored with or without post-and-core systems over a mean observation period of >or=4 years. METHODOLOGY A total of 325 single- and multirooted teeth in 183 subjects treated in a private practice were root filled and restored with either a cast post-and-core or with a prefabricated titanium post and composite core. Root-fill...

performance of structures during recent earthquakes shows that the effect of vertical component of earthquake (vce) could be considered as one of the main causes of bridges collapse. in most of bridge design codes, for seismic analysis of bridges, vce is not taken into account or a distinguished method isn’t presented for assessment of vce. in the present work, the effect of vce on two existing...

Bridges and routers are used to interconnect Local Area Networks (LANs). The performance of these devices is important since they can become bottlenecks in large multi-segment networks. Performance metrics and a test methodology for bridges and routers have not been standardized. Performance data reported by vendors is not applicable to the actual scenarios encountered in an operational network...

Corrugated Soil-Steel bridges have been used as drainage structures and underpasses in the ongoing Southern Highway project. Because the Soil-Steel bridges are novel to Sri Lankan context and the catastrophic bridge failure at Poddala, 2009 led to a controversy about the suitability and the stability of SoilSteel bridges. The structure safety against crushing failure of the corrugated steel arc...

Over the past 30 years, there has been an increasing need to replace the current stock of bridges in Malaysia, since modern bridge systems have a lower life cost. In particular, the huge maintenance cost incurred for the expansion joints and bearings of conventional bridges has been a major concern for local state councils and authorities. The government has also acknowledged the exceptional ri...

In this issue of the Journal, the case report by Garoushi et al illustrates an exciting technique for fixed tooth replacement that can be done chairside using a new class of dental material, fiberreinforced composite. This approach provides the patient with a cost effective treatment alternative that a clinician can choose to augment the traditional fixed prosthodontic approaches of porcelain f...

Salt bridges are known to play an essential role in the thermodynamic stability of the folded conformation of many proteins, but their influence on the kinetics of folding remains largely unknown. Here, we investigate the effect of Glu-Arg salt bridges on the kinetics of α-helix folding using temperature-jump transient-infrared spectroscopy and steady-state UV circular dichroism. We find that g...