A multisignal nanosecond synchronous acquisition system to measure acoustic emission (AE) and electromagnetic radiation (EMR) generated during the process of loading failure coal rock samples is established. The correlation between energy AE EMR signals stress outburst coal-rock was studied, characteristics fracturing were analyzed. results show that (1) before samples, fluctuation largest, wit...

OBJECTIVES To introduce the Canadian Network for Public Health Intelligence's new Knowledge Integration using Web-based Intelligence (KIWI) technology, and to pefrom preliminary evaluation of the KIWI technology using a case study. The purpose of this new technology is to support surveillance activities by monitoring unstructured data sources for the early detection and awareness of potential p...

Early warning system (EWS) is a technology to mitigate risk is used to disseminate timely information. Then knowledge management system (KMS) is used to support for decision facilitation will integrate with EWS to disseminate timely information with proactive early warning. Issues on timeliness for timely reporting and decision facilitation are regarded as main challenge for mitigation of risk....

Rats received electric shock that was preceded by either a warning signal, a series of signals forming an "external clock," or no signal at all. In all conditions, subjects which could avoid and/or escape shock developed less ulceration than, did yoked "helpless" animals which received exactly the same shock (through fixed electrodes wired in series) but had no control over shock. Presence or a...

Critical transitions between alternative stable states have been shown to occur across an array of complex systems. While our ability to identify abrupt regime shifts in natural ecosystems has improved, detection of potential early-warning signals previous to such shifts is still very limited. Using real monitoring data of a key ecosystem component, we here apply multiple early-warning indicato...