We have studied the angular dependence of the irreversible magnetization of several YBa2Cu3O7 and 2H-NbSe2 single crystals with columnar defects tilted off the c axis. At high magnetic fields, the irreversible magnetization M i(Q) exhibits a well-known maximum when the applied field is parallel to the tracks. As the field is decreased below H;0.02Hc2, the peak shifts away from the tracks’ direc...

Passive gamma and neutron detectors screen for illicit special nuclear material in vehicles crossing borders between countries. This paper illustrates how statistical analysis of archived detector data can help to evaluate special nuclear material detection probabilities and to investigate several issues, including drifting background, background gamma suppression, nuisance alarms arising from ...

This work analyzes the performances of different feature detectors/descriptors in the context of incremental path estimation from passive stereo vision (Visual Odometry). Several state-of-the-art approaches have been tested, including a fast Hessian-based feature detector/descriptor developed at INRIM. Tests on both synthetic image sequences and real data show that in this particular applicatio...

Semi-passive replication is a variant of passive replication that does not rely on a group membership service. Défago et al. [4] defined the semi-passive replication concept in the crash fault model and described a semi-passive replication algorithm based on a lazy consensus algorithm. In this paper, we consider semipassive replication and lazy consensus for a Byzantine fault model. We present ...

A review is accomplished on the Softcomputing approaches in the field of nuclear track measurements for polymer solid state nuclear track detectors which have been commonly used for passive dosimetry applications. Several works presented in the last two decades were addressed. A general scheme of a Softcomputing method for nuclear track measurement is expressed from a global viewpoint.

We propose a method to prepare different non-Poissonian signal pulses from sources of Poissonian photon number distribution, using only linear optical elements and threshold photon detectors. This method allows a simple passive preparation of decoy states for quantum key distribution. We show that the resulting key rates are comparable with the performance of active choices of intensities of Po...

All experimental tests of the violation of Bell’s inequality suffer from some loopholes. We show that the locality loophole is not independent of the detection loophole: in experiments using low efficient detectors, the locality loophole can be closed equivalently using active or passive switches.