Objectives: The role of cognitive process for postural control was shown in dual task studies. However, there was no definite evidence how verbal instructions influence the allocation of attention to postural control. This study determined whether young and elderly adult are able to deliberately control the resource allocation when performing a sensorimotor and cognitive task simultaneously and...

objectives: the role of cognitive process for postural control was shown in dual task studies. however, there was no definite evidence how verbal instructions influence the allocation of attention to postural control. this study determined whether young and elderly adult are able to deliberately control the resource allocation when performing a sensorimotor and cognitive task simultaneously and...

daily development of the human knowledge, promotion of biomedical technologies and improvement of physicians' ability in diagnosis and treatment of different types of diseases have always accompanied plenty of discussions and challengeable subjects, especially from the view point of ethical issues. obtaining deep and accurate recognition of these subjects, the attention of the physicians and th...

Co-production systems, in which multiple products are produced simultaneously in a single production run, are prevalent in many industries. Such systems typically produce a random quantity of vertically differentiated products. This product hierarchy enables the firm to fill demand for a lower-quality product by converting a higher-quality product. In addition to the challenges presented by ran...

while conventional data envelopment analysis models set targets separately for each decision making unit, centralized recourse allocation model is presented where there is a centralized decision maker that supervises all the operating units. optimizing of total input consumption and total output production is the main aim of this model. in this paper, firstly the centralized output production m...

The purpose of this paper is to present a framework for optimal stochastic power control in interference limited fading wireless channels. The framework is based on applying stochastic programming methods to optimal transmit power allocation. Numerical examples based on applying interior point algorithms to the optimal power control problem are discussed. Furthermore, an application of the stoc...

An e ective algorithm for solving stochastic resource allocation problems is to build piecewise linear, concave approximations of the recourse function based on sample gradient information. Algorithms based on this approach are proving useful in application areas such as the newsvendor problem, physical distribution and eet management. These algorithms require the adaptive estimation of the app...

We consider two types of convex approximations of two-stage totally unimodular integer recourse models. Although worst-case error bounds are available for these approximations, their actual performance has not yet been investigated, mainly because this requires solving the original recourse model. In this chapter we assess the quality of the approximating solutions using Monte Carlo sampling, o...

This paper aims to compare performance of low complexity dynamic resource allocation techniques for downlinkin OFDMA for WiMax system. An algorithm is proposed to maximize the total throughput while maintainingthe slot proportionality among the users. This algorithm prioritized the user with high sensitivity to the subscriber allocation. A two level hierarchical scheduler is developed for the D...

This letter investigates the benefits of aggregating independent wind power producers. First, we quantify expected joint profit in case where such producers act as a single entity one-stage contract interval, and multi-stage interval with recourse. Second, provide constructive method to design stable allocation mechanisms is changing time. Third, prove that policy stabilizes coalition by correc...