Existing process mining techniques provide summary views of the overall process performance over a period of time, allowing analysts to identify bottlenecks and associated performance issues. However, these tools are not designed to help analysts understand how bottlenecks form and dissolve over time nor how the formation and dissolution of bottlenecks – and associated fluctuations in demand an...

This report is part of PATH Task Order 4141 and shows how moving obstructions can be modeled numerically with kinematic wave theory. It shows that if a moving obstruction is replaced by a sequence of fixed obstructions at nearby locations with the same “capacity”, then the error in vehicle number converges uniformly to zero as the maximum separation between the moving and fixed bottlenecks is r...

The Internet is an interconnected mesh of participating IP devices forwarding information worldwide. The speed and volume with which this information travels can vary due to limitations in channel capacity, type & size of media and device capacity. The primary devices, which handle routing decisions on the Internet Backbone, are gateways. The efficiency of gateways at forwarding traffic can be ...

A delay of about 100 ms gives human communicators the feeling of live interaction. Since in a global network the propagation delay alone is about 100 ms, every other delay component, such as processing and queuing, should be kept as short as possible. Moreover, the deployment of new high bandwidth multimedia applications will boost network traffic and consequently the demand for very high capac...

Continuity of stream playback is the crucial constraint in designing a continuous media server. From a distributed memory architectural model developed earlier, we found that there were many points where the stream capacity of the server could be improved. The stream capacity was usually limited by the storage bottlenecks. Serving streams from memory cache eliminates disk accesses and data tran...

Extreme events are always accompanied with extensive failures and sharp performance degradation in the power network. This study aims to derive an effective scheme identify transmission bottlenecks improve network’s resilience under extreme events. A greedy search is designed for quick slow restoration stage obtain largest supply (LPS), which a significant engineering indicator of In stage, we ...

BACKGROUND When addressing the urgent task of improving vaccine supply chains, especially to accommodate the introduction of new vaccines, there is often a heavy emphasis on stationary storage. Currently, donations to vaccine supply chains occur largely in the form of storage equipment. METHODS This study utilized a HERMES-generated detailed, dynamic, discrete event simulation model of the Ni...

Electrodes Design for Lithium Batteries Sluggish mass transport and charge transfer dynamics are the main bottlenecks with increasing loading multiple times to commercial level. Thus, in article number 2102233, Hongchao Liu, Mingzheng Ge, Yuxin Tang, co-workers review state-of-the-art developments on constructing commercialization-driven high-capacity electrodes high loading, when comparing low...