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In this paper we will explain how important is the concept of Internet of Things and his role in evolution of eLearning applications. Another important aspect on which we will stop is represented by the importance of moving the applications in cloud computing explaining the necessary things which needs to be taken into consideration. In the last section we will propose a security mechanism as a future...
Our paper is about designing and developing an Android application, for Google Glass, called MyDetect and associated services, that can detect, save and recognize persons from different pictures taken with your wearable device. We designed and developed this innovative application to work on a pair of Google Glass [9], the future of wearable technology. The app has two modules: one that saves persons...
The paper presents the analysis of losses of a three-phase, high speed 12/8 switched reluctance motor (SRM), intended to be used in automotive applications. The objective is to investigate by comparison the iron losses considering different types of short pitch winding arrangements, as well as different core laminations, and how much these affect the performance of a SRM having the same structure...
The paper presents the control of a retractable pole operated by phone call that allows access to a restricted area or a parking lot. The remote control is one or several mobile phones whose numbers have been introduced in the program of a programmable logic controller. The phone numbers are the passwords that allow access to the area. The system works as an agenda that allows access on certain days...
In this paper we will try to present a comparative study of non-relational databases and relational databases. We mainly focus our presentation on one implementation of the NoSQL database technology, namely MongoDB, and make a comparison with another implementation of relational databases, namely MySQL, and thus justifying why MongoDB is more efficient than MySQL. We will also present the advantages...
Network monitoring represents an important factor in improving the quality of the services provided by communication networks. In this paper we describe a part of a network management and monitoring system that uses Machine-to-Machine (M2M) sensor systems, reducing costs through fast isolation of a subpart of the network that is not functional. The main contribution of this paper consists in the integration...
Geothermal plant turns geothermal water heat energy into electricity via a working agent. In the present case was chosen as the working agent carbon dioxide CO2, which is currently in closed-circuit after a thermodynamic engine cycle.
The paper aims to examine the influence of vibration to the behavior of the electrical contact resistance in electrical equipment. The paper analise the influence of vibration on independent axes and combination of the vibration axe. The analise of the electrical contact resistance during vibration,it is made both on normally closed contacts, and on normally open contacts.
Program comprehension deals with an important problem of recreating mental model of the software system from the source code. This process is needed every time a new programmer joins the development team, or the old one forgets about the code. We designed the four-layered model of the developer's mental model that provides a deeper understanding of the mental model and of the program comprehension...
In order to perform the magnetic field computation it is essential to know the B-H characteristic. This paper presents a new equipment to be used to determine the first magnetization characteristic of a ferromagnetic body. This equipment consists of an 8-shape magnetic circuit, having as unknown the B-H magnetic characteristic in the base horizontal yoke. The other branches have a known B-H characteristic,...
This paper aims to achieve the bond-graph model and the analysis of two equivalent electrical schemes that represents parts of the equivalent electrical schemes used for analyzing an electrical cable that contains 10 cells per meter. This analysis is performed with the aim to obtain results as close to reality as possible due to the influences of electrical cables used to interconnect different electrical...
Piercing the cell membrane using an electric pulse (electroplasmolysis), in order to release the liquid within, is a modern food processing procedure. Obtaining the electric field required for piercing the cell, without needlessly increasing the energy consumption and without destroying the cell, requires the solution of a complicated electro-quasistationary electromagnetic field problem. The small...
This paper deals with 2D numerical models of an electromagnetic relay taking into account the translation motion. The numerical modelling was performed in Flux software. The analysis of transient electromagnetic field in time domain coupled with translation motion allows the study of mobile core dynamics.
In order to study digital filters using virtual instrumentation a simulation program specifically designed for this purpose has been developed. To implement this program means to use the following facilities: studying digital Butterworth filters, Cebyshev, Bessel and Median and change their parameters: bandwidth, order, rank and slope; possibility of changing the input parameters: amplitude, offset...
Finding a method which allows a computer recognition to be close to human recognition is a goal of many works in the present. We have set this goal too. According to us, we need to find function for simple recognition of shapes in the images as first step of this goal. Result of this method provides input of our system of recognition. System form depends on the result of shape recognition method....
The mathematical modeling of 18O separation column by isotopic exchange between nitric oxides-nitric acid system is presented while extraction is performed from the column. Such a production regime leads to major changes in the equilibrium equations in comparison with the case with total reflux (no extraction). The presented model is useful both to predict the expected production rate and to predict...
This paper presents a dynamic regime analysis of the starting and function of the two-phase asynchronous motor with two non-orthogonal stator windings. Simulation results are obtained when the axis of the auxiliary winding is moved with 30 degrees in decreasing and increasing way. The answer concerning optimal choice of the two-phased motor for household applications is given by the results of the...
In this paper I will present a technique to generate a digital signature for an image, which will uniquely identify it, using Radon transform. Even if Radon based approaches are broadly applicable to tomography (the construction of an image from the projection data related with cross-sectional scans of it), in this research work I will show how it can be successfully utilized to classify images and...
The paper proposes and implements a performance control structure as a answer to cascade reservoir processes. It is elaborated by relying on the combined decentralized/distributed - decoupled method specific to processes with multiple variables. In every important designing step for the structure parts, we show a few illustrative numerical examples. The intended means is set against the well-known...
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