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Advances in Circuits, Electronics and Micro-electronics, 2009. CENICS '09. Second International Conference on

Date 11-16 Oct. 2009

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Displaying Results 1 - 25 of 33
  • [Front cover]

    Publication Year: 2009 , Page(s): C1
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  • [Title page i]

    Publication Year: 2009 , Page(s): i
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  • [Title page iii]

    Publication Year: 2009 , Page(s): iii
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  • [Copyright notice]

    Publication Year: 2009 , Page(s): iv
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  • Table of contents

    Publication Year: 2009 , Page(s): v - vii
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  • Preface

    Publication Year: 2009 , Page(s): viii
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  • Organizing Committee

    Publication Year: 2009 , Page(s): ix - x
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  • list-reviewer

    Publication Year: 2009 , Page(s): xi - xii
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  • Optimization of Enzymatic Logic Gates and Networks for Noise Reduction and Stability

    Publication Year: 2009 , Page(s): 1 - 7
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (576 KB) |  | HTML iconHTML  

    Biochemical computing attempts to process information with biomolecules and biological objects. In this work we review our results on analysis and optimization of single biochemical logic gates based on enzymatic reactions, and a network of three gates, for reduction of the "analog" noise buildup. For a single gate, optimization is achieved by analyzing the enzymatic reactions within a framework of kinetic equations. We demonstrate that using co-substrates with much smaller affinities than the primary substrate, a negligible increase in the noise output from the logic gate is obtained as compared to the input noise. A network of enzymatic gates is analyzed by varying selective inputs and fitting standardized few-parameters response functions assumed for each gate. This allows probing of the individual gate quality but primarily yields information on the relative contribution of the gates to noise amplification. The derived information is then used to modify experimental single gate and network systems to operate them in a regime of reduced analog noise amplification. View full abstract»

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  • Single Electron Fault in QCA Binary Wire

    Publication Year: 2009 , Page(s): 8 - 10
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (417 KB) |  | HTML iconHTML  

    Quantum cellular automata (QCA) represents an emerging technology at the nanotechnology level. There are various faults which may occur in QCA cells. One of these faults is the single electron fault (SEF) that can happen during manufacturing or operation of QCA circuits. A detailed simulation based logic level modeling of single electron fault for QCA binary wire is represented in this paper. View full abstract»

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  • A Simple 250 Degrees Celsius Frequency Modulation Transmitter for use in Wireless Sensor Networks

    Publication Year: 2009 , Page(s): 11 - 15
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (408 KB) |  | HTML iconHTML  

    This paper presents a voltage-controlled oscillator (VCO) operating up to 250degC and usable as a simple frequency modulation (FM) transmitter in wireless sensor networks (WSN). The device is a simple LC oscillator which uses the channel depletion capacitance as a variable capacitor controlled by the gate voltage VG to enable the sustained oscillating behaviour of a tank circuit. The context of operation, failure mechanisms and limitations of electronic components in high temperature environments are studied. The designed component operates successfully in the frequency range from 48 to 62 MHz at room temperature and 56 to 59 MHz at 250degC. Output powers have been measured from -30 dBm to -10 dBm. The proposed circuit enables frequency modulation for wireless communications in the context of ruggedized wireless sensor networks, that is, sensor networks which are designed to operate in very harsh conditions such as fire fighting and industrial applications. View full abstract»

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  • QCA Implementation of Serpent Block Cipher

    Publication Year: 2009 , Page(s): 16 - 19
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1559 KB) |  | HTML iconHTML  

    Quantum cellular automata (QCA) represents an emerging technology at the nanotechnology level. Because of high speed, nanoscale size and ultra low power nature of QCA, cryptography can be an interesting application of QCA technology. QCA implementation of the Serpent block cipher is discussed in this paper. The basic modules of Serpent are implemented using QCA cells. It can be obviously seen that the implementation of cryptographic algorithms in this technology has considerable advantages compared to conventional CMOS approach. View full abstract»

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  • Design Methodology for Clocked Storage Elements Robust to Process Variations

    Publication Year: 2009 , Page(s): 20 - 23
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (549 KB) |  | HTML iconHTML  

    In this paper we address the effects of process variations on the performance of clocked storage elements. Two types of structures are selected and evaluated by using energy-delay space analysis. The delay variations of the energy-efficient designs for each clocked storage element are measured and compared. We show how much topology selection is important in order to minimize the impact of process variations on performance and reliability. View full abstract»

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  • Amplitude Analysis in Partial Discharge Measurement

    Publication Year: 2009 , Page(s): 24 - 27
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (464 KB) |  | HTML iconHTML  

    In commercial sphere, there is obvious the pursuit of produce electrical wares with high reliability and low risk of breakdown. It is known, the Partial Discharge (PD) is regarded as a parasitic effect occurring in insulating systems. Deep investigation of Partial Discharge activity is necessary for longer service life and better reliability of high voltage under stressed parts or systems. Due to dimension minimizing tendency the higher claims poses on insulating systems. The real insulating materials are non-ideal, they consist of some filthinesses and faults (air bubbles) causing the unequal voltage distribution and enhanced risk of breakdown. Relatively cheap measuring device working at amplitude analysis principle of partial discharge pulses was design to monitoring the partial discharge origin in hard to reach places of surveyed specimen. View full abstract»

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  • Universal Resistance-to-Digital Converter

    Publication Year: 2009 , Page(s): 28 - 33
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (587 KB) |  | HTML iconHTML  

    A universal resistance-to-digital converter based on the universal sensors and transducers interfacing integrated circuit (USTI) investigated and described at the first time. A three-point calibration technique for accurate resistance measurements in a wide resistive range has been implemented in a single integrated circuit that allows a direct resistance-to-digital conversion according to three popular serial interfaces RS232, SPI and I2C. At a minimum possible hardware configuration, the integrated circuit lets obtain the average relative error plusmn 0.47 % in the wide measuring range from 10 Ohm to 10 MOhm, and plusmn 0.01 % relative error at conditional splitting of the range of measurement into sub ranges with a choice of appropriate values of the reference resistor and charging-discharging capacitor. In addition, the designed integrated circuit can work with any resistance-to-time or resistance-to-frequency conditioning circuits and is suitable practically for any resistive sensors and transducers. In such cases, their outputs should be directly connected to any of two USTI's channels for frequency-time measurements. The designed integrated circuit also has several addition advantages such as low cost, universality, small size (32-pad MLF 5 times 5 times 1 mm package) and high reliability. View full abstract»

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  • Using Pareto-Optimal Fronts in the Design of Reconfigurable Data Converters

    Publication Year: 2009 , Page(s): 34 - 39
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (732 KB) |  | HTML iconHTML  

    Analog design is a bottleneck in the design of integrated circuits. A recently proposed method to cope with the complexity of analog design is the use of a multi-objective bottom- up flow, which makes use of the concept of Pareto-optimal front (POF) to capture performance trade-offs of analog components, and through which these can be exploited during top-down design of a complex (hierarchically-wise) analog circuit. In this paper, we describe a step forward and transform this technique, through a new type of front we call Multi-Mode Pareto-optimal Front, to design reconfigurable Analog-to-Digital Converters (ADCs). We demonstrate that not only design time is shortened but also that design complexity of reconfigurable circuits can be more systematically and efficiently managed. View full abstract»

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  • A 2-D KLM Model for Disk-Shape Piezoelectric Transducers

    Publication Year: 2009 , Page(s): 40 - 43
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (333 KB) |  | HTML iconHTML  

    Piezoelectric materials are widely used for many applications such as sensors, actuators. Today, their integration in microelectronics processes like CMOS requires the development of advanced realistic behavioral models. Until now, these models were limited to only one ceramic's operation mode, i.e., thickness or planar. Moreover, the robustness of piezo-electronic systems cannot be adequately addressed as long as models are not improved in particular by taking into account further real phenomena. This article proposes to merge, in a new KLM model, the two operation modes. It is demonstrated that the behavior of the proposed model is in very good agreement with the real ceramic behavior. View full abstract»

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  • An Efficient Algorithm for the Control of Reconfigurable Pixel Microstrip Antennas

    Publication Year: 2009 , Page(s): 44 - 47
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (479 KB) |  | HTML iconHTML  

    Reconfigurable pixel antennas require algorithms that can change the antennas to match the specifications in real time with the minimum number of switch operations. To address this problem, an algorithm that combines a search method, an approximate qualitative antenna model and measurements is proposed. The qualitative model is based on a shape grammar that relates the shape of the antenna to its electromagnetic properties, and the measurements are substituted by an accurate numerical electromagnetic model. Results demonstrate that the algorithm goes through a small number of iterations to converge to the antenna properties required. View full abstract»

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  • QCA Implementation of A5/1 Stream Cipher

    Publication Year: 2009 , Page(s): 48 - 51
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1520 KB) |  | HTML iconHTML  

    Quantum cellular automata (QCA) represents an emerging technology at the nanotechnology level. Nowadays, many applications of QCA technology are introduced and cryptography can be an interesting application of QCA technology. The original encryption algorithm for GSM was A5/1. Here, we have implemented the A5/1 stream cipher using QCA technology. Simulation results are obtained from QCADesigner software. View full abstract»

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  • Temperature Compensation of Cone Penetration Probe Sensors

    Publication Year: 2009 , Page(s): 52 - 55
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (106 KB) |  | HTML iconHTML  

    Here is presented a temperature compensation technique of cone penetration probe sensors (CPT). Probe internal temperature influence to accuracy of ADC and sensors bridge output voltage was investigated. There are presented theoretical results of bridge calibration and strain measure errors. View full abstract»

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  • Parking Traffic Jam Forecast System

    Publication Year: 2009 , Page(s): 56 - 60
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3190 KB) |  | HTML iconHTML  

    Application-oriented electronics methods for detection of parking traffic jams simplify the control systems and increase the efficiency. This paper explores the possibility of traffic jam forecast. Main target of this paper is to show possibility to forecast traffic jam before it starts and not only detect it. This paper proposes jam forecasting and detection technology using set of traffic flow data. In this method, time series data of traffic flow events considered as a combination of frequency are transformed into several frequency data. Experimental researches were done in real parking lot in Kaunas. Created methods and structures of electronic flow control systems increase efficiency of traffic flow control systems in the places of mass gatherings. View full abstract»

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  • Traffic Image Processing Systems

    Publication Year: 2009 , Page(s): 61 - 66
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (487 KB) |  | HTML iconHTML  

    This paper is about image processing systems and its ability to use in traffic surveillance and analysis. Growing car number is cause of bigger traffic jams and city pollution. With intelligent vision systems we can control traffic and reduce this problem. These systems have tremendous perspective. This paper presents the fundamental principles of traffic image processing system in moving object detection and extraction. View full abstract»

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  • A Test Suite for System Tests of Distributed Automotive Electronics

    Publication Year: 2009 , Page(s): 67 - 70
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (145 KB) |  | HTML iconHTML  

    Automotive electronic systems are distributed systems consisting of a number of electronic control units interconnected with various different bus-systems and operated by a large amount of software. With new features being added to every new generation of cars, these systems get ever more complex. Hence, verification not only at the component level but also at the system level becomes increasingly important. This paper presents a new test suite, termed twTester, dedicated for the system test of automotive electronics using a remote tester approach and presents some use-cases and experiments. View full abstract»

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  • Modelling of Building Lightning Protection Parameters

    Publication Year: 2009 , Page(s): 71 - 74
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (424 KB) |  | HTML iconHTML  

    A lot of research is being performed in the field of lightning protection, beginning with lightning parameters and object reactions to these parameters, ending with electromagnetic wave propagation inside the object. All this is becoming very important with increased usage of microprocessor equipment. Several methodologies and various computer modeling programs are created which allow to determine the electric potential distribution during the lightning strike in 3D (precision of resistance calculation are parts of ohm and in case of electric potential - parts of volt). However there is still a problem pending - how to select the lightning protection equipment correctly? In this work the simplified method of calculation of lightning protection devices is presented which is based on the acquired experience and research of other scientists in this field. This method allows to determine the grounding resistance and electric potential distribution in the elements of lightning protection. Data obtained by applying this method will allow more precise selection of lightning protection devices. View full abstract»

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  • A Transaction Level Assertion Verification Framework in SystemC: An Application Study

    Publication Year: 2009 , Page(s): 75 - 80
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (234 KB) |  | HTML iconHTML  

    This paper presents a new transaction level assertion verification framework built on top of SystemC to support the integration of assertion based verification in a model driven design methodology. A key point of the proposed framework is that it enables decoupling the work of the design and verification teams. This is possible thanks to data introspection capabilities; the fact that the assertions are not embedded in the design model code; and the abstraction in the property specification. Thus, the two teams can work in parallel starting from the natural language specification, reducing the development time. View full abstract»

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