Articole științifice/Scientific articles: Recent submissions

  • Widespread deployment of voice over IP and security considerations [articol] 
    Constantinescu, Mihai; Cernăianu, Doina; Mischievici, Dragoş; Croitoru, Victor (Timişoara: Editura Politehnica, 2006)
    During the last years, Internet facilities like email, the world-wide-web (WWW), and e-commerce have generated a boost of Internet growth, making offering services possible in fundamentally new ways. One of these services ...
  • Studies regarding the obtaining of the PK fertilizer with the copper and zinc microelement [articol] 
    Ciopec, Elvira-Mihaela; Iovi, Aurel; Negrea, Petru; Lupa, Lavinia Afrodita; Moșoarcă, Giannin Emanuel; Ghiga, Mihaela Ramona (Timişoara: Editura Politehnica, 2006)
    The fertilizers play a very important roll in the plant growing and development. The fertilizers with microelements supply to the plant the needed nutritive substances, which doesn’t exist or are insufficient ...
  • Precisely measuring using behavioural blocks in PSpice [articol] 
    Cîrlugea, Mihaela; Fazakas, Albert; Hintea, Sorin (Timişoara: Editura Politehnica, 2006)
    We created specialized behavioral blocks that compute fast and accurately the power, the rms and average values of a signal. The signals can be seen through an adjustable “examination window”. The method was tested on some ...
  • A new linear systolic array for the VLSI implementation of 2-D IDST [articol] 
    Chiper, Doru Florin (Timişoara: Editura Politehnica, 2006)
    In this paper a new linear VLSI array architecture for the VLSI implementation of the 2-D IDST based on a new systolic array algorithm is proposed. This new design approach uses a new efficient VLSI algorithm. It employs ...
  • VoiceStudio: a HMM-based tool for research and teaching in the speech recognition field [articol] 
    Căruntu, Alexandru; Toderean, Gavril; Nica, Alina (Timişoara: Editura Politehnica, 2006)
    This paper introduces the Romanian speech recognition system VoiceStudio. As most state-of-the-art Automatic Speech Recognition (ASR) systems today, it is based on Hidden Markov Models. Although there are numerous toolkits ...
  • OTA-C biquad cells emulation of LC ladder filters [articol] 
    Câmpeanu, Andrei; Gál, János (Timişoara: Editura Politehnica, 2006)
    The paper presents a method to design continuos-time filter based on the node-voltage simulation of LC ladder structures. The node voltages are used as variables to generate transfer functions. The OTA-C biquad cells are ...
  • Cryptographical system for secure client–server communication [articol] 
    Câmpean, Mircea-Radu; Borda, Monica Elena (Timişoara: Editura Politehnica, 2006)
    The aim of this paper was the research of a way to implement a cryptographical system for secure Client-Server communication, designed to satisfy the specific needs of the health care domain. A real IP based Client-Server ...
  • Fuzzy sliding mode decoupling controller design based on indirect field orientation for induction motor drive [articol] 
    Bousserhane, I. K.; Hazzab, A.; Rahli, M.; Mazari, B.; Kamli, M. (Timişoara: Editura Politehnica, 2006)
    In this paper, the design of a speed control scheme based on total fuzzy-sliding mode control for indirect field-orientated induction motor (IM) is proposed. In this scheme, the motor speed is controlled by fuzzy sliding ...
  • Direct field-oriented control based on backstepping strategy with fuzzy rotor resistance estimator for induction motor speed control [articol] 
    Bousserhane, I. K.; Hazzab, A.; Rahli, M.; Mazari, B.; Kamli, M. (Timişoara: Editura Politehnica, 2006)
    In this paper, the speed control of an induction motor using backstepping design with fuzzy rotor resistance estimation is proposed. First, the direct field oriented control IM is derived. Then, a backstepping for direct ...
  • Data structures for industrial laser range sensors [articol] 
    Böhnke, Kay Erik (Timişoara: Editura Politehnica, 2006)
    This paper describes the implementation of data structures based on data acquisition of active optical range sensors. At first, three available industrial laser sensors are introduced and compared exemplarily. Based on the ...
  • Analysis of heavy metals adsorption and desorption processes from polluted soils [articol] 
    Bogatu, Corneliu; Negrea, Adina; Moșoarcă, Giannin Emanuel; Lupa, Lavinia Afrodita; Ciopec, Elvira-Mihaela (Timişoara: Editura Politehnica, 2006)
    Heavy metals adsorption in soils is a process which takes place in few hours, but their desorption is a difficult process. Adsorption efficiency depends on metallic cation, its concentration and humus content of soil. ...
  • Use of sequential extraction for characterization of polluted soils [articol] 
    Bogatu, Corneliu; Mâșu, Smaranda; Dragomir, Neculai; Negrea, Adina; Ciopec, Elvira-Mihaela; Lupa, Lavinia Afrodita; Lazarovici, Miodrag; Cristea, Corina; Moșoarcă, Giannin Emanuel (Timişoara: Editura Politehnica, 2006)
    Sequential extraction method allows determination of metals from operationally defined fractions: ionic exchangeable fraction, fraction adsorbed onto iron and manganese oxyhydroxide surfaces, ...
  • Virtual signal generator for flicker modeling with GUI [articol] 
    Găşpăresc, Gabriel (Timişoara : Editura Politehnica, 2008)
    This paper describes an implementation method of a virtual signal generator for flicker modeling, with graphical user interface, build in Matlab environment using an integrated codec or a sound card, the advantages and ...
  • Comparative study on RANSAC and mean shift algorithm [articol] 
    Fuiorea-Bulucea, Daniela; Gui, Vasile; Pescaru, Dan Alexandru; Toma, Corneliu I. (Timişoara : Editura Politehnica, 2008)
    This paper is a comparative study between two important robust methods: the RANSAC algorithm and the mean shift algorithm. These methods are used in an image registration technique. The purpose is to demonstrate ...
  • Handover simulation in a Mobile WiMAX network [articol] 
    Fratu, Octavian; Cîrstea, Roxana; Halunga-Fratu, Simona (Timişoara : Editura Politehnica, 2008)
    The paper is presenting a simulation procedure of the handover into Mobile WiMAX networks and its hybrid extension based on WiFi technology. The transmitted data jitter and the end-toend delay are analyzed.
  • Expansion of the Euler Bernoulli equation [articol] 
    Filipovic, Mirjana (Timişoara : Editura Politehnica, 2008)
    A new notion of joint is defined. The article is concerned with the relationship between the Euler- Bernoulli equation and equation of equilibrium at the point of elastic line tip. The Euler-Bernoulli equations should ...
  • Mathematical model of gold lixiviation [articol] 
    Filcenco-Olteanu, Antoneta; Dobre, T.; Rădulescu, R.; Panțuru, E.; Grigoraș, L. (Timişoara : Editura Politehnica, 2008)
    Processing of different refractory gold ores by wet chlorination, followed by chloroauric complex (HAuCl₄) separation by adsorbtion on macroporous polymers (ion exchange resin) was studied and patented by INCDMRR – ICPMRR ...
  • The micropower translinear network implementation of rational approximated and partial fractions decomposed functions [articol] 
    Doicaru, Elena (Timişoara : Editura Politehnica, 2008)
    In this paper is presented a translinear topology suitable for static and dynamic analog signal processing at very low supply voltage. The one variable objective functions, firstly are rational approximated, then decomposed ...
  • Real single tone frequency estimation by PHD and filtering [articol] 
    De Sabata, Aldo; Toma, Liviu; Pazsitka, Robert; Matekovits, Ladislau (Timişoara : Editura Politehnica, 2008)
    In this paper we propose a single real tone frequency estimator for the case of low signal-to-noise ratios. The starting point is the Pisarenko Harmonic Decomposition method due to its moderate complexity, which is ...
  • Combined preprocessing methods for leak locating systems [articol] 
    Dăneţi, Marllene (Timişoara : Editura Politehnica, 2008)
    Real leak signals, acquired in industrial pipeline systems may manifest two typical non stationary signatures: abrupt amplitude random changes on one side and a time varying mean on the other side. This paper proposes ...

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