Two observers determine the entanglement between two free bosonic modes by each detecting one of the modes and observing the correlations between their measurements. We show that a state which is maximally entangled in an inertial frame becomes less entangled if the observers are relatively accelerated. This phenomenon, which is a consequence of the Unruh effect, shows that entanglement is an o...

the value of the permeability in fluid flow through porous media is important for process investigation. in low reynolds number, the classic darcy’s law is suitable for simulation of fluid flow. in this paper, an experimental study for evaluation of preformed fiber permeability has been done. also, the deviations from the classical darcy law by experimental and numerical simulation of the navie...

Inertial technology has been used in a wide range of applications such as guidance, navigation, and motion tracking. However, there are few undergraduate courses that focus on the inertial technology. Traditional inertial navigation systems (INS) and relevant testing facilities are expensive and complicated in operation, which makes it inconvenient and risky to perform teaching experiments with...

The main problem of Pedestrian Dead-Reckoning (PDR) using only a body-attached IMU is the accumulation of heading errors. The heading provided by magnetometers in indoor buildings is in general not reliable and therefore it is commonly not used. Recently, a new method was proposed called Heuristic Drift Elimination (HDE) that minimizes the heading error when navigating in buildings. It assumes ...

Tracking dynamics on the GPS signal is still a big challenge to the receiver designer as the operating conditions are becoming more volatile. Optimizing the stand-alone system for dynamics, generally, degrades the accuracy of measurements. Therefore, an INS is integrated with GPS to address this issue. Doppler derived from INS can be used to aid the carrier tracking loop for improving the perfo...

The requirement to operate aircrafts in GPS denied environments can be met by use of visual odometry. We study the case that the height of the aircraft above the ground can be measured by an altimeter. Even with a high quality INS that the orientation drift is neglectable, random noise exists in the INS orientation. The noise can lead to the error of position estimate, which accumulates over ti...

It is argued that Einstein’s theory of relativity does not provide a new definition of time, and that it does not reject Newton’s absolute time. The time dilation effect observed in the lifetime of a relativistically moving unstable particle is termed a paradox because of the equality of two times, based on kinematics and irreversible decay processes. Proposals based on a new definition of iner...

Large scale numerical simulation of quantum turbulence is performed by using 3-D time-dependent Gross-Pitaevskii equation. The energy spectrum obeying Kolmogorov law and large scale self-similar structure of quantum vortex tangle are found in a fully developed dumped turbulent state. Width of the inertial range becomes large depending on the system size of the simulation that is consistent with...

In this article, we consider the Qian–Sheng model in Landau–de Gennes framework describing nematic liquid crystal flows when inertial effect is neglected. By taking limit of elastic constant to zero (also called uniaxial limit) and utilizing so-called Hilbert expansion method, provide a rigorous derivation from non-inertial Ericksen–Leslie model.

In animal experiments, the pathogenesis of lung hemorrhage due to exposure to clinical diagnostic levels of ultrasound has been attributed to an inertial cavitation mechanism. The purpose of this article is to report the results of two experiments that directly contradict the hypothesis that ultrasound-induced lung hemorrhage is caused by inertial cavitation. Elevated hydrostatic pressure was u...