High-rise buildings with a considerable number of elevators represent a major logistic problem concerning saving space and time due to economic reasons. For this reason, complex Elevator Group Control Systems are developed in order to manage the elevators properly. Furthermore, the subject of energy is acquiring more and more industrial relevance every day as far as sustainable development is c...

This paper presents an approach that uses supervisor architecture structure with the intention to reach flexibility of the combustion process control during the boiler functioning on the example of the high qualified Power AG. For this case, adaptive distributed control system with the supervisor on top is invented, on the middle layer with load distribution on burners and maintenance of optima...

Sliding Mode Control (SMC) in the presence of small, unavoidable input delay as may be present in controller implementation is studied. Linear systems with bounded matched disturbances and uncertain systemmatrices are considered,where input delay in the SMCwill produce oscillations or potentially even unbounded solutions.Without a priori knowledge of the bounds on the state-dependent terms as r...

0360-1315/$ see front matter Crown Copyright 2 doi:10.1016/j.compedu.2009.05.001 * Corresponding author. Tel.: +1 905 721 8668x267 E-mail address: [email protected] (R.H. Kay). 1 Tel.: +1 905 721 8668x2886. Audience response systems (ARSs) permit students to answer electronically displayed multiple choice questions using a remote control device. All responses are instantly presented, in chart f...

Secure OS has been the focus of several studies. However, CPU resources, which are important resources for executing a program, are not the object of access control. For preventing the abuse of CPU resources, we had earlier proposed a new type of execution resource that controls the maximum CPU usage [5, 6]. The previously proposed mechanism can control only one process at a time. Because most ...

This is an investigation of the interaction between organizational and management factors at work for both workers and supervisors in the manufacturing sector. Survey was done in a sample consisted of 23 establishments, 630 workers, and 47 supervisors ,meanwhile 10 focus group discussions (FGDs) for workers, and 5 FGDs for supervisors. Workers and supervisors alike reported illnesses and job di...

The most common solution for implementing access control into a dynamic group is to use a group key unknown to all but the users in the group. The group key (i.e., session key) is updated for every session throughout the lifetime of the group with the procedure of group key distribution. In this paper, we propose a group key distribution scheme with self-healing property that enables users in a...

The terminology and notation used in this paper have been introduced in the following articles: [1], [2], [3], [4], and [5]. For simplicity, we adopt the following rules: Y is a non empty set, a is an element of BVF(Y ), G is a subset of PARTITIONS(Y ), and A, B, C are partitions of Y . One can prove the following propositions: (1) If G is a coordinate and G = {A, B,C} and A 6= B and B 6= C and...