Unmanned Aerial Vehicles (UAVs), or drones, have attracted a considerable amount of attentions due to their utility to civilian as well as military applications. However, the security issues involved in UAV technology have not been extensively discussed in the literature. As a first step toward analyzing these security issues, we investigate security in drone controllers, especially controllers...

Between different modelling of animal hopping, walking and running, the most popular one is Spring Loaded Inverted Pendulum (SLIP) model [1],[2]. Through the representation of the body in SLIP by a point mass, trunk stabilization is not addressed. With addition of trunk, it is extended to TSLIP (Trunk SLIP) in which hip torque is applicable for control. Mostly, the control is performed in two l...

We discuss memory effects in the conductance of hopping insulators due to slow rearrangements of structural defects leading to the formation of polarons close to the electron hopping states. An abrupt change in the gate voltage and corresponding shift of the chemical potential change the populations of the hopping sites, which then slowly relax due to rearrangements of structural defects reduci...

We analyze diffusion in a finite domain with a position-dependent diffusion coefficient in terms of a stochastic hopping process. Via a coordinate transformation, we map the original system onto a problem with constant diffusion but nontrivial potential. In this way we show that a regime with enhanced diffusion acts as a potential barrier. We compute first-passage time distributions, hopping ra...

According to the World Health Organization (WHO), breast cancer (BC) is one of the most deadly cancers diagnosed among middle-aged women. Precise diagnosis and prognosis are crucial to reduce the high death rate. In this paper we present a framework for automatic malignancy grading of fine needle aspiration biopsy tissue. The malignancy grade is one of the most important factors taken into cons...

There has been a recent resurgence of experimental efforts to quantitatively determine the phase diagram of the Bose-Hubbard model by carefully analyzing experiments with ultracold bosonic atoms on an optical lattice. In many realizations of these experiments, the hopping amplitudes are not homogeneous throughout the lattice, but instead, the lattice has an anisotropy where hopping along one di...

We determine the propagation properties of a quantum particle in a d-dimensional lattice with hopping disorder, delta correlated in time. The system is delocalized: the averaged transition probability shows a diffusive behavior. Then, superimposed to the disorder, we consider a bias favouring the motion with a given orientation, as in the dynamics of flux lines in superconductors. The result is...

The flag of registry and classification society are an integral part of the target factors used by Port State Control authorities (PSC) when deciding on vessels to select for inspection. A shipowner may then have an interest in changing the flag of registry (flag-hopping) and classification society (class-hopping) to avoid future controls. Using data on PSCs collected over 6 years from 7,500 ve...

We analyse the open boundary partially asymmetric exclusion process with smoothly varying internal hopping rates in the infinite-size, mean-field limit. The mean-field equations for particle densities are written in terms of Ricatti equations with the steady-state current J as a parameter. These equations are solved both analytically and numerically. Upon imposing the boundary conditions set by...

The springlike mechanics of the human leg during bouncing gaits has inspired the design of passive assistive devices that use springs to aid locomotion. The purpose of this study was to test whether a passive spring-loaded ankle exoskeleton could reduce the mechanical and energetic demands of bilateral hopping on the musculoskeletal system. Joint level kinematics and kinetics were collected wit...