Vibrational fine structure observed in the published He–I UV photoelectron spectra of H2 and N2 molecules recorded at room temperature under microwave excitation or 700 °C have been reexamined compared with calculations Franck–Condon factors (FCFs) using simple harmonic oscillator wave functions and/or those obtained Morse potentials. In general, FCFs are used to explain vibronic transitions UV...

Flooding-based DDoS attacks is a very common way to attack a victim machine by directly or indirectly sending a large amount of malicious traffic to it. Stochastic Fairness Queueing (SFQ) is a typical implementation of Fair Queueing. This paper focuses on exploring the feasibility of mitigating flooding-based DDoS attacks by queueing disciplines. A comparative study is made between SFQ and FCFS...

We examine the question of whether to employ the rst-comerst-served (FCFS) discipline or the processor-sharing (PS) discipline at the hosts in a distributed server system. We are interested in the case in which service times are drawn from a heavy-tailed distribution, and so have very high variability. Traditional wisdom when task sizes are highly variable would prefer the PS discipline, becaus...

This paper is concerned with the analysis of a threshold policy for scheduling “readers” and “writers” in a multiserver system and a comparison of its performance with the FCFS policy. A writer must be processed singly, thus using all servers in the system, while readers can be processed concurrently, each using one server. Higher throughput and better response time can be achieved by increasin...

BACKGROUND Ulf Fernström implanted stainless steel ball bearings following discectomy, or for painful disc disease, and termed this procedure disc arthroplasty. Today, spherical interbody spacers are clinically available, but there is a paucity of associated biomechanical testing. The primary objective of the current study was to evaluate the biomechanics of a spherical interbody implant. It wa...

This study presents an approach to incorporate optimisation in the strategic conflict resolution service for unmanned aircraft systems (UAS) traffic management. A conventional line with First-Come, First-Served (FCFS) principle is introduced, following generation of two types flight plans (i.e., li...

The notion of age-of-information (AoI) is investigated in the context large-scale wireless networks, which transmitters need to send a sequence information packets, are generated as independent Bernoulli processes, their intended receivers over shared spectrum. Due interference, rate packet depletion at any given node entangled with both spatial configurations, determine path loss, and temporal...