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We are currently witnessing a multitude of educational initiatives. We might think that this is an extension of the responsibility of the state education, alongside more varied and ambitious local educational actions than in the past, but which remain strictly dependent on the political guidelines and nationally defined regulations. It is possible to find ourselves in the face of a considerable transformation...
The organization can also be seen as an instrument that managers have at their disposal to ensure the achievement of some goals. History is full of examples of managers who have failed in their attempt to change the organization to meet the demands of the existing situation. The present article aims at a study on the management of the educational organization, the role of the manager within the school...
This paper presents an exhaustive analysis over the power consume and energy protection aspects regarding the modern digital pulse railway track circuits by compare to traditional analogue circuits. The analysis covers field measurements over more than 550 circuits powered 220-230V / 75Hz, covering length from 10 to 2700 meters.
In this paper a sign NLMS algorithm variant is proposed to adapt the second microphone on the two microphone approach in hearing aids. for closed-loop feedback cancellation. The simulation results show improved convergence properties over competing methods used to tackle the acoustic feedback problem.
This paper present a wearable platform, for cardiac signal monitoring, developed by using conductive threads into a cloth article. For reading the human body, impedance variations were used flexible electrodes developed for the wearable ECG platform. The dry ECG electrodes have been developed by knitting technology. The electrodes have been integrated into the textile assembly together with the electronics...
Structural changes of the informational society based on knowledge underline the necessity of changes in the educational system too, according to the social, economic needs, etc. ICT offers teachers a variety of tools to adapt the educational process to the needs of each student in the transition from teacher-centred instruction to the creation of pupil-centred interactive educational means. The teacher...
This study presents a control approach for a Ground Walking Platform (GWP). The control approach was developed to be a part of a future lower limb rehabilitation robot that aims to simulate the walking on different terrains (e.g. walking, on plane ground, on stairs, or on a hill). In addition the system aims to simulate for the user not only classic hard ground walking trajectories, but also to simulate...
Paper presents firstly the principle of fluorescent detection to be implemented for rapid diagnosis of bacterial and non-bacterial meningitis. The acquired image by the mobile phone equipped with adapted lens is prepared by special techniques including denoising, emphasizing the useful signals, highlight and setting thresholds. Secondly, the prepared image is cropped in individual matrix's and converted...
Dynamic Multipoint IPsec VPNs (DMVPN) is a software optimization technique proposed firstly by the Cisco Company to overcome the limitations of the classical Virtual Private Network (VPN) implementations. In this paper, we discuss and simulate a DMVPN phase2 (spoke to spoke tunnel). The implementation and simulation is carried in GNS3 network simulation software.
Many examples for the usage of electromagnetic forces in micromanipulation systems are available in the literature. The behavior of electromagnet and the dependence of their electromagnetic force on different parameters are a classical subject. In this respect, this paper presents a method to model, simulate and measure the electromagnetic force of a small electromagnet, used as actuator for compliant...
Mass spectrometry is an optoelectronic method of determining organic substances by comparing their mass spectrum with mass spectra found in system libraries. In the case of biological products, substances of interest, biotic or xenobiotics, may be “hidden” from the background of the analyzed matrix noise, which alters the major aspect of the mass spectrum obtained and faces the impossibility of their...
Neurons use electricity in order to communicate to each other. Due to numerous signals sent by neurons, there are oodles of electrical activity in the brain. Sensitive equipment like electroencephalogram (EEG) biosensor perceives the brainwaves emanated from neurons. Beta waves are responsible for problem solving or decision making and associated with attention. Alpha waves are associated with now...
This paper presents the analysis of an electrothermal wind generator for wind conversion systems able to transform the rotational mechanical energy both into electricity and heat by cogeneration. This new solution is a two in one machine that consists of a permanent magnet synchronous generator cooled by forced convection by a liquid thermal agent and a permanent magnet heater whose role is to raise...
This paper presents two different ways of identifying possible defects for electronic components in order to achieve predictive maintenance. The analysis is performed on the components of a power station used in telecommunication. In the first part of the paper is performed a defect analysis based on fuzzy graphs. This leads to the components causing the most accidental stops. In the second part an...
This paper describes a new solution for parking management and control that can be used along with the actual parking system. The proposed solution uses a Web Service as a data controller, a database for data storage and three client applications targeting a better user experience. Web Service's role is to process data received from clients and works as a link between clients and database. Also, Web...
The process of modeling of a real system usually implies an iterative approach where an initial model is incrementally modified in order to increase its accuracy with regard to available experimental data. Many approaches are discussed in the literature, among which some are based on Artificial Intelligence techniques. Continuous improvement in the mathematical model adequacy is very similar with...
One of the main priorities for an effective and sustainable Security Union refers to the improvement of information exchange, strengthening information systems and enhancing security at the external borders of the European Union (EU). Recent research projects financed at EU level under Security theme calls are approaching the development of modern technologies and concepts, either for border surveillance...
In this paper, we analyze the three bottlenecks that limit the large-scene in virtual reality applications and especially in the Web-based applications. We also analyze the technical characteristics and defects of the LOD strategy and then propose a novel partitioning model. Based on the proposed model and XML, we present a scheme to overcome the three bottlenecks regarding CPU, memory and network...
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