Resins for crown and bridge have been widely used as veneers on rnetal frames to provide restorations of anterior teeth because the reproducibility of the aesthetics appearances is relative}y easyi-6), The reason would be that their materials have good handling, such as an arbitrary working time and short setting time due to the light-curing system, and also have the advantage of comparatively ...

Infrastructures in the Netherlands are rated according to a discrete condition scheme and the results are registered in an extensive database. The paper discusses the application of a continuous-time Markov process for modelling deterioration and introduces new results for optimizing periodic inspections and preventive maintenance. The focus of this discussion is on the condition of superstruct...

This paper introduces a software tool for the predictive life-cycle management of reinforced concrete bridges. The novel aspect of this particular tool is the integration of non-destructive inspection techniques in combination with fully-probabilistic deterioration models. The use of these models requires that the building under examination be subdivided into multiple levels of detail. We emplo...

Wood has been successfully used as a bridge material for thousands of years, but before the early 1900’s most structures were built of untreated timber. Protection from decay and deterioration was afforded by using the heartwood of naturally durable species or by covering the structure to protect it from weathering. Although many bridges constructed of un­ treated timber performed well (some la...

The importance of masonry arch bridges as a traffic network element calls for thorough analysis focused on both structural stability and loading capacity these historical structures, considering the usage in contemporary conditions. This paper focuses longitudinal cracks single span bridge to evaluate its influence behaviour system. As do not necessarily present an inevitable collapse mechanism...

The focus of this paper is on the statistical estimation of parameters in various types of continuous-time Markov processes using bridge condition data in the Netherlands. The parameters in these processes are transition intensities between discrete condition states. These intensities may depend on the current state and on the age of the structure. The likelihood function for the observed trans...

The first aim of this study was to determine the age group at which marathon performance declines in top male and female runners and to compare that to the runners of average ability. Another aim of this of this study was to examine the age-related yearly decline in marathon performance between age group winners and the average marathon finisher. Data from the New York (NYC), Boston, and Chicag...

Reflection amplitude at top rebar layer has been used as a main criterion for evaluating attenuation of ground-penetrating radar (GPR) data from concrete bridge decks. However, a recent study has pointed out the limitation of this practice. Motivated by that same research, the current paper presents a robust method for performing GPR attenuation analysis. Also based on correlation between A-sca...