Track condition is one of the most important parameters affecting the track maintenance management. In order to obtain a good track maintenance management system, it is necessary to predict track condition through the time. In this study, the track’s state will be defined in terms of the Combine Track Record index (CTR) rating which can vary from 0 to 100 where 100 denotes the best possible tra...

Atomic force microscopy (AFM) has been employed to investigate characteristics of tracks of heavy charged particles in solid state nuclear track detectors (SSNTDs). In the present work, we have performed simulations of the track structures revealed by AFM based only on geometrical considerations of the tracks and two types of probes (the ultralever and the ultrahigh aspect ration probe). The pu...

the constitutive relationships of the rubber materials that act as the main spring of a hydraulic engine mount are nonlinear. in addition to material induced nonlinearity, further nonlinearities may be introduced by mount geometry, turbulent fluid behavior, temperature, boundary conditions, decoupler action, and hysteretic behavior. in this research all influence the behavior of the system only...

Tensegrity deployment is considered herein as a tracking control problem. Therefore, the required trajectories should be feasible for a given structure. For tensegrity structures, this means that in every desired configuration, the structure has to satisfy tensegrity conditions, which require strings to be in tension, and the structure to be stable. To define an open-loop deployment control law...

Abstract The existing and future accelerator facilities at GSI FAIR offer unique opportunities for interdisciplinary research, especially material science nanotechnology. On their way through polymers, swift heavy ions with GeV energy deposit enormous densities along trajectory, generating long nanoscopic damage trails known as ion tracks. Ion-track technology utilizes the small track size (few...

As mobile devices came into wide use, it became practical to collect travel data in personal logs. Many studies have been conducted to extract meaningful information from this trend. In this study, we present a system for monitoring road-geometry and crash-risk estimation, based on trajectories created using a smartphone-aided sensor network. The proposed system consists of a number of node veh...