28,963 research outputs found
Microfluidics for effective concentration and sorting of waterborne protozoan pathogens
We report on an inertial focussing based microfluidics technology for concentrating waterborne protozoa, achieving a 96% recovery rate of Cryptosporidium parvum and 86% for Giardia lamblia at a throughput (mL/min) capable of replacing centrifugation. The approach can easily be extended to other parasites and also bacteria
X.509 certificate error testing
X.509 Certificates are used by a wide range of technologies to verify identities, while the SSL protocol is used to provide a secure encrypted tunnel through which data can be sent over a public network. Combined both of these technologies provides the basis of the public key infrastructure (PKI). While the concept of PKI is a good idea, the different implementation of the technologies in different operating system and clients often lead to weaknesses. This paper proposes a methodology to automate the testing of SSL clients by generating both bogus and malformed certificates in order to evaluate the client’s response and identify potential threats to network infrastructures
Radiatively Generated Isospin Violations in the Nucleon and the NuTeV Anomaly
Predictions of isospin asymmetries of valence and sea distributions are
presented which are generated by QED leading photon
bremsstrahlung effects. Together with isospin violations arising from
nonperturbative hadronic sources (such as quark and target mass differences) as
well as with even a conservative contribution from a strangeness asymmetry
(), the discrepancy between the large NuTeV `anomaly' result for
and the world average of other measurements is removed.Comment: 10 pages, 2 figure
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