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Field Behaviour (field + behaviour)

Distribution by Scientific Domains
Engineering50%

Selected Abstracts

Simulation and extremal analysis of hurricane events

JOURNAL OF THE ROYAL STATISTICAL SOCIETY: SERIES C (APPLIED STATISTICS), Issue 3 2000
E. Casson
In regions affected by tropical storms the damage caused by hurricane winds can be catastrophic. Consequently, accurate estimates of hurricane activity in such regions are vital. Unfortunately, the severity of events means that wind speed data are scarce and unreliable, even by standards which are usual for extreme value analysis. In contrast, records of atmospheric pressures are more complete. This suggests a two-stage approach: the development of a model describing spatiotemporal patterns of wind field behaviour for hurricane events; then the simulation of such events, using meteorological climate models, to obtain a realization of associated wind speeds whose extremal characteristics are summarized. This is not a new idea, but we apply careful statistical modelling for each aspect of the model development and simulation, taking the Gulf and Atlantic coastlines of the USA as our study area. Moreover, we address for the first time the issue of spatial dependence in extremes of hurricane events, which we find to have substantial implications for regional risk assessments. [source]

Novel method for testing the grease ­resistance of pet food packaging

PACKAGING TECHNOLOGY AND SCIENCE, Issue 2 2002
J. Lange
Abstract For paper-based dry pet food packaging, one of the main requirements is a high resistance against staining from the fat in the product. For both development and quality control, rapid and reliable standardized test procedures assessing this property are needed. Although a number of tests are available, they either apply only to certain types of packaging materials and show limited correlation with field behaviour, or employ non-standard testing substances, long testing times and complicated equipment. In response to this situation, a new testing procedure that reflects field behaviour but without the drawbacks of the existing tests has been developed. The new test shows high reproducibility and good correlation with field performance for a wide range of multiwall bag and folding box materials with different types of grease resistance treatment. Copyright © 2002 John Wiley & Sons, Ltd. [source]

Quality of Information Flow in the Backend of a Product Development Process: a Case Study

QUALITY AND RELIABILITY ENGINEERING INTERNATIONAL, Issue 4 2004
Jaring Boersma
Abstract The increasing need for products that are able to reliably deliver complex functionality with a high degree of innovation presents a major challenge to the modern day product creation processes. In order to be able to use information on the field behaviour of previous products in the design of new products, increasingly detailed information needs to be retrieved from the market in an increasingly shorter time. The purpose of this study is to analyse, in a typical case in the consumer electronics industry, whether the underlying business process is able to generate this information with adequate quality sufficiently quickly. Information models of the company's service centre and call centre were developed using the concepts of maturity index on reliability. The results showed that the structure of the information handling process resulted in a massive data loss (up to 60% of the data gathered by the service centres) and also in serious data quality degradation. Would this information have not been lost, it could have been used by development teams for preventive and corrective actions. Copyright © 2004 John Wiley & Sons, Ltd. [source]

Naturally Occurring Markets and Exogenous Laboratory Experiments: A Case Study of the Winner's Curse,

THE ECONOMIC JOURNAL, Issue 528 2008
Glenn W. Harrison
We examine the relevance of experimental findings from laboratory settings that abstract from the field context of the task that theory purports to explain. Using common value auction theory as our guide, we identify naturally occurring settings in which one can test the theory. Experienced agents bidding in familiar roles do not fall prey to the winner's curse. Yet, experienced agents fall prey to the winner's curse when bidding in an unfamiliar role. We conclude that the theory predicts field behaviour well when one is able to identify naturally occurring field counterparts to the key theoretical conditions. [source]