PHYSICS: Peeling away Facets

Peeling Away Timing Error in NetFlow Data

In this paper, we characterize, quantify, and correct timing errors introduced into network flow data by collection and export via Cisco NetFlow version 9. We find that while some of these sources of error (clock skew, export delay) are generally implementation-dependent and known in the literature, there is an additional cyclic error of up to one second that is inherent to the design of the ex...

Facets of glass physics

Peeling Away Layers of an RFID Security System

The Legic Prime system uses proprietary RFIDs to secure building access and micropayment applications. The employed algorithms rely on obscurity and consequently did not withstand scrutiny. This paper details how the algorithms were found from opening silicon chips as well as interacting with tags and readers. The security of the tags is based on several secret check-sums but no secret keys are...

Self-expanding stent peeling away from overlapping balloon-expandable stent causing late acquired aneurysm formation and stent malapposition.

From the Division of Cardiology, Department of Medicine and Therapeutics, Li Ka Shing Institute of Health and Science, Institute of Vascular Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China. Dr. Wu has received consulting and proctoring fees from Biosensors International. All other authors have reported that they have no relationships relevant to the con...

Missing physics in stick-slip dynamics of a model for peeling of an adhesive tape.

It is now known that the equations of motion for the contact point during peeling of an adhesive tape mounted on a roll introduced earlier are singular and do not support dynamical jumps across the two stable branches of the peel force function. By including the kinetic energy of the tape in the Lagrangian, we derive equations of motion that support stick-slip jumps as a natural consequence of ...