In this paper, we propose the introduction of a frequency domain variable perturbation control and a leaky algorithm to the frequency domain time difference simultaneous perturbation (FDTDSP) method in order to improve the cancellation performance and the stability of the active noise control (ANC) system using the perturbation method. Since the ANC system using the perturbation method does not...

We present a GPU-friendly path-planning framework for largescale crowd simulation (Figure 1). This framework has been used to simulate 65,000 agents at real-time framerates on a single commodity GPU. By combining a continuum-based global path planner with a fine-grained avoidance model, we can perform expensive global planning at a coarse resolution and lower update rate while the local avoidan...

The purpose of this study was to do an empirical study on the service sector to investigate the effect of brand identity on brand performance and employees’ job satisfaction with the intermediating role of organizational confidence, using Buil et al. (2015) model. In this model, the effect of brand identity on brand performance and employees’ job satisfaction is investigated both directly and i...

The results of an ultrawideband (UWB) measurement campaign carried out in a Hercules C-130 military cargo airplane are presented. The environment encompasses several metallic surfaces resulting in a large number of multipath components. Path-loss factor n representing the distance dependence of the channel path-loss is calculated for various frequency centers and bandwidths. A pathgain calculat...

objective: it has been suggested that low frequency stimulation (lfs) exerts its inhibitory effect on epileptogenesis through adenosine receptors activation. in the present study, effect of different lfs frequencies on a1 and a2a receptors gene expression was investigated in perforant path kindled seizures. materials and methods: animals were kindled by perforant path stimulation. afterdischarg...

abstract textbook design and evaluation has recently turned into a very important area in english language teaching. this paper evaluates the english textbooks taught in iranian junior high schools: right path to english which was the medium of instruction until 2013 and the recently designed textbook-prospect- which replaced it. for this purpose, tucker’s (1975) textbook evaluation model was e...

In this section Okumura and Hata propagation models are discussed. The two models or their modified version are frequently used throughout commercially available RF engineering tools. 1.1 Okumura Propagation Model Okumura's model is one of the most frequently used macroscopic propagation models. It was developed during the mid 1960's as the result of large-scale studies conducted in and around ...

Ultra wide bandwidth (UWB) signals are commonly defined as signals that have a large relative bandwidth (bandwidth divided by the carrier frequency) or a large absolute bandwidth. Typical indoor environments contain multiple walls and obstacles consisting of different materials. The RF ultra wideband (UWB) system is a promising technology for indoor localisation owing to its high bandwidth that...

We derive a series of results on random walks on a d-dimensional hypercubic lattice (lattice paths). We introduce the notions of terse and simple paths corresponding to the path having no backtracking parts (spikes). These paths label equivalence classes which allow a rearrangement of the sum over paths. The basic combinatorial quantities of this construction are given. These formulas are usefu...

This paper studies the scaling of airplane dynamic response to stochastic wind gusts, with focus on the relationship between airplane size and airspeed variations. The results have applications in the design and control of small-scale aircraft for robustness with respect to turbulence. Using linearized equations of motion and the Dryden model of gusts, the paper presents analytical and numerica...