About fifteen elements in the periodic table skip certain valences in all the compounds they form. This is understood to arise from a negative effective intra-atomic interaction.
Communication networks in the railway sector are critical to the operation of the system and have stringent requirements for reliability and safety.
We study the problem of Key Exchange (KE), where authentication is in part based on human-supplied credentials, such as passwords and biometrics.
We propose and evaluate a defense against DoS attacks which we call selective bin verification.
Standards groups should answer the call to address global climate change because they have a key role to play.
Telecommunication applications are distinguished by their stringent requirements for availability and completion times.
The U.S. National Academies of Science's Board on Science, Technology and Economic Policy estimates that the Internet and voice-over-IP (VoIP) communications infrastructure generates 10% of U.S.
Modern cellular networks may be deployed using multiple radio-access-network technologies with multi-mode mobile terminals capable of selecting among different technologies.
Fiber nonlinear effects are found to cause severe signal degradation in long-haul coherent optical OFDM (CO-OFDM) transmission, particularly in dispersion- managed transmission.
The performance of distributed PMD compensation in the transmission line is evaluated, and it is shown that the tolerable PMD increases almost linearly with the number of PMD compensators distribut
