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  Subjects -> COMPUTER SCIENCE (Total: 2064 journals)
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COMPUTER SCIENCE (1196 journals)                  1 2 3 4 5 6 | Last

Showing 1 - 200 of 872 Journals sorted alphabetically
3D Printing and Additive Manufacturing     Full-text available via subscription   (Followers: 20)
Abakós     Open Access   (Followers: 4)
ACM Computing Surveys     Hybrid Journal   (Followers: 27)
ACM Journal on Computing and Cultural Heritage     Hybrid Journal   (Followers: 8)
ACM Journal on Emerging Technologies in Computing Systems     Hybrid Journal   (Followers: 12)
ACM Transactions on Accessible Computing (TACCESS)     Hybrid Journal   (Followers: 3)
ACM Transactions on Algorithms (TALG)     Hybrid Journal   (Followers: 15)
ACM Transactions on Applied Perception (TAP)     Hybrid Journal   (Followers: 5)
ACM Transactions on Architecture and Code Optimization (TACO)     Hybrid Journal   (Followers: 9)
ACM Transactions on Autonomous and Adaptive Systems (TAAS)     Hybrid Journal   (Followers: 7)
ACM Transactions on Computation Theory (TOCT)     Hybrid Journal   (Followers: 12)
ACM Transactions on Computational Logic (TOCL)     Hybrid Journal   (Followers: 3)
ACM Transactions on Computer Systems (TOCS)     Hybrid Journal   (Followers: 18)
ACM Transactions on Computer-Human Interaction     Hybrid Journal   (Followers: 15)
ACM Transactions on Computing Education (TOCE)     Hybrid Journal   (Followers: 5)
ACM Transactions on Design Automation of Electronic Systems (TODAES)     Hybrid Journal   (Followers: 4)
ACM Transactions on Economics and Computation     Hybrid Journal  
ACM Transactions on Embedded Computing Systems (TECS)     Hybrid Journal   (Followers: 3)
ACM Transactions on Information Systems (TOIS)     Hybrid Journal   (Followers: 19)
ACM Transactions on Intelligent Systems and Technology (TIST)     Hybrid Journal   (Followers: 8)
ACM Transactions on Interactive Intelligent Systems (TiiS)     Hybrid Journal   (Followers: 3)
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)     Hybrid Journal   (Followers: 9)
ACM Transactions on Reconfigurable Technology and Systems (TRETS)     Hybrid Journal   (Followers: 6)
ACM Transactions on Sensor Networks (TOSN)     Hybrid Journal   (Followers: 8)
ACM Transactions on Speech and Language Processing (TSLP)     Hybrid Journal   (Followers: 9)
ACM Transactions on Storage     Hybrid Journal  
ACS Applied Materials & Interfaces     Hybrid Journal   (Followers: 29)
Acta Automatica Sinica     Full-text available via subscription   (Followers: 2)
Acta Informatica Malaysia     Open Access  
Acta Universitatis Cibiniensis. Technical Series     Open Access  
Ad Hoc Networks     Hybrid Journal   (Followers: 11)
Adaptive Behavior     Hybrid Journal   (Followers: 11)
Advanced Engineering Materials     Hybrid Journal   (Followers: 28)
Advanced Science Letters     Full-text available via subscription   (Followers: 10)
Advances in Adaptive Data Analysis     Hybrid Journal   (Followers: 7)
Advances in Artificial Intelligence     Open Access   (Followers: 15)
Advances in Calculus of Variations     Hybrid Journal   (Followers: 2)
Advances in Catalysis     Full-text available via subscription   (Followers: 5)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 19)
Advances in Computer Engineering     Open Access   (Followers: 4)
Advances in Computing     Open Access   (Followers: 2)
Advances in Data Analysis and Classification     Hybrid Journal   (Followers: 51)
Advances in Engineering Software     Hybrid Journal   (Followers: 27)
Advances in Geosciences (ADGEO)     Open Access   (Followers: 13)
Advances in Human Factors/Ergonomics     Full-text available via subscription   (Followers: 22)
Advances in Human-Computer Interaction     Open Access   (Followers: 20)
Advances in Materials Sciences     Open Access   (Followers: 14)
Advances in Operations Research     Open Access   (Followers: 12)
Advances in Parallel Computing     Full-text available via subscription   (Followers: 7)
Advances in Porous Media     Full-text available via subscription   (Followers: 5)
Advances in Remote Sensing     Open Access   (Followers: 44)
Advances in Science and Research (ASR)     Open Access   (Followers: 6)
Advances in Technology Innovation     Open Access   (Followers: 5)
AEU - International Journal of Electronics and Communications     Hybrid Journal   (Followers: 8)
African Journal of Information and Communication     Open Access   (Followers: 9)
African Journal of Mathematics and Computer Science Research     Open Access   (Followers: 4)
AI EDAM     Hybrid Journal  
Air, Soil & Water Research     Open Access   (Followers: 11)
AIS Transactions on Human-Computer Interaction     Open Access   (Followers: 6)
Algebras and Representation Theory     Hybrid Journal   (Followers: 1)
Algorithms     Open Access   (Followers: 11)
American Journal of Computational and Applied Mathematics     Open Access   (Followers: 5)
American Journal of Computational Mathematics     Open Access   (Followers: 4)
American Journal of Information Systems     Open Access   (Followers: 5)
American Journal of Sensor Technology     Open Access   (Followers: 4)
Anais da Academia Brasileira de Ciências     Open Access   (Followers: 2)
Analog Integrated Circuits and Signal Processing     Hybrid Journal   (Followers: 7)
Analysis in Theory and Applications     Hybrid Journal   (Followers: 1)
Animation Practice, Process & Production     Hybrid Journal   (Followers: 5)
Annals of Combinatorics     Hybrid Journal   (Followers: 4)
Annals of Data Science     Hybrid Journal   (Followers: 12)
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 12)
Annals of Pure and Applied Logic     Open Access   (Followers: 2)
Annals of Software Engineering     Hybrid Journal   (Followers: 13)
Annual Reviews in Control     Hybrid Journal   (Followers: 6)
Anuario Americanista Europeo     Open Access  
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2)
Applied and Computational Harmonic Analysis     Full-text available via subscription   (Followers: 1)
Applied Artificial Intelligence: An International Journal     Hybrid Journal   (Followers: 12)
Applied Categorical Structures     Hybrid Journal   (Followers: 2)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 11)
Applied Computer Systems     Open Access   (Followers: 2)
Applied Informatics     Open Access  
Applied Mathematics and Computation     Hybrid Journal   (Followers: 33)
Applied Medical Informatics     Open Access   (Followers: 10)
Applied Numerical Mathematics     Hybrid Journal   (Followers: 5)
Applied Soft Computing     Hybrid Journal   (Followers: 16)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 5)
Applied System Innovation     Open Access  
Architectural Theory Review     Hybrid Journal   (Followers: 3)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 5)
Archive of Numerical Software     Open Access  
Archives and Museum Informatics     Hybrid Journal   (Followers: 142)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 5)
arq: Architectural Research Quarterly     Hybrid Journal   (Followers: 7)
Artifact     Hybrid Journal   (Followers: 2)
Artificial Life     Hybrid Journal   (Followers: 7)
Asia Pacific Journal on Computational Engineering     Open Access  
Asia-Pacific Journal of Information Technology and Multimedia     Open Access   (Followers: 1)
Asian Journal of Computer Science and Information Technology     Open Access  
Asian Journal of Control     Hybrid Journal  
Assembly Automation     Hybrid Journal   (Followers: 2)
at - Automatisierungstechnik     Hybrid Journal   (Followers: 1)
Australian Educational Computing     Open Access   (Followers: 1)
Automatic Control and Computer Sciences     Hybrid Journal   (Followers: 4)
Automatic Documentation and Mathematical Linguistics     Hybrid Journal   (Followers: 5)
Automatica     Hybrid Journal   (Followers: 11)
Automation in Construction     Hybrid Journal   (Followers: 6)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 9)
Basin Research     Hybrid Journal   (Followers: 5)
Behaviour & Information Technology     Hybrid Journal   (Followers: 52)
Big Data and Cognitive Computing     Open Access   (Followers: 2)
Biodiversity Information Science and Standards     Open Access  
Bioinformatics     Hybrid Journal   (Followers: 294)
Biomedical Engineering     Hybrid Journal   (Followers: 15)
Biomedical Engineering and Computational Biology     Open Access   (Followers: 13)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 21)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 37)
Briefings in Bioinformatics     Hybrid Journal   (Followers: 47)
British Journal of Educational Technology     Hybrid Journal   (Followers: 137)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 12)
c't Magazin fuer Computertechnik     Full-text available via subscription   (Followers: 1)
CALCOLO     Hybrid Journal  
Calphad     Hybrid Journal   (Followers: 2)
Canadian Journal of Electrical and Computer Engineering     Full-text available via subscription   (Followers: 15)
Capturing Intelligence     Full-text available via subscription  
Catalysis in Industry     Hybrid Journal   (Followers: 1)
CEAS Space Journal     Hybrid Journal   (Followers: 2)
Cell Communication and Signaling     Open Access   (Followers: 2)
Central European Journal of Computer Science     Hybrid Journal   (Followers: 5)
CERN IdeaSquare Journal of Experimental Innovation     Open Access   (Followers: 3)
Chaos, Solitons & Fractals     Hybrid Journal   (Followers: 3)
Chemometrics and Intelligent Laboratory Systems     Hybrid Journal   (Followers: 14)
ChemSusChem     Hybrid Journal   (Followers: 7)
China Communications     Full-text available via subscription   (Followers: 7)
Chinese Journal of Catalysis     Full-text available via subscription   (Followers: 2)
CIN Computers Informatics Nursing     Full-text available via subscription   (Followers: 11)
Circuits and Systems     Open Access   (Followers: 15)
Clean Air Journal     Full-text available via subscription   (Followers: 1)
CLEI Electronic Journal     Open Access  
Clin-Alert     Hybrid Journal   (Followers: 1)
Cluster Computing     Hybrid Journal   (Followers: 1)
Cognitive Computation     Hybrid Journal   (Followers: 4)
COMBINATORICA     Hybrid Journal  
Combinatorics, Probability and Computing     Hybrid Journal   (Followers: 4)
Combustion Theory and Modelling     Hybrid Journal   (Followers: 14)
Communication Methods and Measures     Hybrid Journal   (Followers: 12)
Communication Theory     Hybrid Journal   (Followers: 21)
Communications Engineer     Hybrid Journal   (Followers: 1)
Communications in Algebra     Hybrid Journal   (Followers: 3)
Communications in Computational Physics     Full-text available via subscription   (Followers: 2)
Communications in Partial Differential Equations     Hybrid Journal   (Followers: 3)
Communications of the ACM     Full-text available via subscription   (Followers: 52)
Communications of the Association for Information Systems     Open Access   (Followers: 16)
COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering     Hybrid Journal   (Followers: 3)
Complex & Intelligent Systems     Open Access   (Followers: 1)
Complex Adaptive Systems Modeling     Open Access  
Complex Analysis and Operator Theory     Hybrid Journal   (Followers: 2)
Complexity     Hybrid Journal   (Followers: 6)
Complexus     Full-text available via subscription  
Composite Materials Series     Full-text available via subscription   (Followers: 8)
Computación y Sistemas     Open Access  
Computation     Open Access   (Followers: 1)
Computational and Applied Mathematics     Hybrid Journal   (Followers: 2)
Computational and Mathematical Methods in Medicine     Open Access   (Followers: 2)
Computational and Mathematical Organization Theory     Hybrid Journal   (Followers: 2)
Computational and Structural Biotechnology Journal     Open Access   (Followers: 2)
Computational and Theoretical Chemistry     Hybrid Journal   (Followers: 9)
Computational Astrophysics and Cosmology     Open Access   (Followers: 1)
Computational Biology and Chemistry     Hybrid Journal   (Followers: 12)
Computational Chemistry     Open Access   (Followers: 2)
Computational Cognitive Science     Open Access   (Followers: 2)
Computational Complexity     Hybrid Journal   (Followers: 4)
Computational Condensed Matter     Open Access  
Computational Ecology and Software     Open Access   (Followers: 9)
Computational Economics     Hybrid Journal   (Followers: 9)
Computational Geosciences     Hybrid Journal   (Followers: 16)
Computational Linguistics     Open Access   (Followers: 23)
Computational Management Science     Hybrid Journal  
Computational Mathematics and Modeling     Hybrid Journal   (Followers: 8)
Computational Mechanics     Hybrid Journal   (Followers: 5)
Computational Methods and Function Theory     Hybrid Journal  
Computational Molecular Bioscience     Open Access   (Followers: 2)
Computational Optimization and Applications     Hybrid Journal   (Followers: 7)
Computational Particle Mechanics     Hybrid Journal   (Followers: 1)
Computational Research     Open Access   (Followers: 1)
Computational Science and Discovery     Full-text available via subscription   (Followers: 2)
Computational Science and Techniques     Open Access  
Computational Statistics     Hybrid Journal   (Followers: 14)
Computational Statistics & Data Analysis     Hybrid Journal   (Followers: 30)
Computer     Full-text available via subscription   (Followers: 96)
Computer Aided Surgery     Open Access   (Followers: 6)
Computer Applications in Engineering Education     Hybrid Journal   (Followers: 8)
Computer Communications     Hybrid Journal   (Followers: 16)
Computer Journal     Hybrid Journal   (Followers: 9)
Computer Methods in Applied Mechanics and Engineering     Hybrid Journal   (Followers: 23)
Computer Methods in Biomechanics and Biomedical Engineering     Hybrid Journal   (Followers: 12)
Computer Methods in the Geosciences     Full-text available via subscription   (Followers: 2)
Computer Music Journal     Hybrid Journal   (Followers: 19)
Computer Physics Communications     Hybrid Journal   (Followers: 7)

        1 2 3 4 5 6 | Last

Journal Cover
Analog Integrated Circuits and Signal Processing
Journal Prestige (SJR): 0.211
Citation Impact (citeScore): 1
Number of Followers: 7  
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1573-1979 - ISSN (Online) 0925-1030
Published by Springer-Verlag Homepage  [2351 journals]
  • Selected papers from SENSET2017, the first International Conference on
           Sensors, Networks, Smart and Emerging Technologies
    • Authors: Sawsan Sadek
      Pages: 219 - 220
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1221-6
      Issue No: Vol. 96, No. 2 (2018)
  • From narrow-band to ultra-wide-band microwave sensors in direct skin
           contact for breast cancer detection
    • Authors: Zahra Katbay; Sawsan Sadek; Marc Le Roy; André Perennec; Raafat Lababidi
      Pages: 221 - 234
      Abstract: In this paper, the design and test of different microwave antennas and sensors for breast cancer detection are presented. The sensors are designed and optimized to be used in direct skin contact, and for this purpose a specific breast phantom model is proposed. First, a miniaturized microstrip back-cavity Hilbert fractal antenna, operating in the ISM band (2.4–2.5 GHz), was designed. Then, this antenna was used to investigate the possibility of detecting the presence of breast tumors based on a narrowband frequency method that monitors the shift of the antenna frequency response. The antenna prototype was fabricated and tested in real in vivo measurement conditions on two different patients diagnosed with breast cancer. Measurement results have led after a comparison with the retro-simulation results of the structure to a more realistic breast model and to draw the limitations of this narrowband frequency method. As a time domain study seems to be more relevant, an UWB monopole antenna of dimensions 3 cm × 3 cm, to be used in direct contact with the breast model was designed. This antenna was optimized to both enhance the antenna/human body matching and to maximize the transfer of energy into the breast phantom by using a cavity, increasing by this way the detection potential. In order to improve the sensor’s directivity and enhance the electromagnetic field level inside the breast, a balanced antipodal Vivaldi antenna was also designed and optimized for a direct breast contact to operate in the 3.1–10.6 GHz band. A mono static and a bi static study in the time domain are finally proposed to investigate the presence of the tumor.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1114-8
      Issue No: Vol. 96, No. 2 (2018)
  • Smart water technology for leakage detection: feedback of large-scale
    • Authors: Elias Farah; Isam Shahrour
      Pages: 235 - 242
      Abstract: Recent advances in intelligent water meter technology have improved the quantitative monitoring in water supply and distribution systems. Smart meters using automated meter reading (AMR) technology allow water utilities to: (a) provide clear consumption patterns which can help customers to track and control their water usage and (b) improve active leakage targeting and leak detection capability. This paper presents a feedback about the use of AMR system to detect leakage in a large-scale experimentation, which is conducted at the Scientific Campus of the University of Lille, which stands for a small town of 25,000 users. This paper presents the demonstration site as well as its monitoring using AMR technology and how this technology allowed a rapid detection of water leakage.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1137-1
      Issue No: Vol. 96, No. 2 (2018)
  • Determinant characteristics in EEG signal based on bursts amplitude
           segmentation for predicting pathological outcomes of a premature newborn,
           with validation using ANN
    • Authors: Yasser Al Hajjar; Abd El Salam Al Hajjar; Bassam Daya; Pierre Chauvet
      Pages: 243 - 251
      Abstract: EEG signal contains some specific patterns that predict neuro-developmental impairments of a premature newborn. Extracting these patterns from a set of EEG records provides a dataset to be used in machine learning in order to implement an intelligent classification system that predict prognosis of the baby. In a previous work we proved that inter-burst intervals (IBI) found in the EEG records predicts abnormal outcomes of the premature. A bibliographic study on the amplitude of an EEG signal, with the annotations of the neuro-pediatricians, showed that low amplitudes in EEG signal are strongly correlated with an abnormal prognosis of the premature, similar to that of IBI. According to these hypotheses, we present in this paper, a segmentation methodology on the amplitude of bursts intervals of EEG signal into 3 segments: low, medium and high, in addition to the inter-burst intervals. We create a new algorithm that detects 6 important parameters in each interval of these 4 segments. After applying this new methodology, we obtain a new classified dataset that contains 24 parameters extracted from these 4 segments to obtain with gestational age of the preterm and the day of recording 26 input attributes and one output which is the class (normal, sick or risky). Finally we validate the pertinence of these attributes using artificial neural network.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1129-1
      Issue No: Vol. 96, No. 2 (2018)
  • Graphene oxide: Nylon ECG sensors for wearable IoT
           healthcare—nanomaterial and SoC interface
    • Authors: N. G. Hallfors; M. Alhawari; M. Abi Jaoude; Y. Kifle; H. Saleh; K. Liao; M. Ismail; A. F. Isakovic
      Pages: 253 - 260
      Abstract: The Internet of Things (IoT) presents opportunities to address a variety of systemic, metabolic healthcare issues. Cardiovascular disease and diabetes are among the greatest contributors to premature death worldwide. Wireless wearable continuous monitoring systems such as ECG sensors connected to the IoT can greatly decrease the risk of death related to cardiac issues by providing valuable long-term information to physicians, as well as immediate contact with emergency services in the event of a heart attack or stroke. In this report we discuss the fabrication, characterization and validation of composite fabric ECG sensors made from Nylon® coated with reduced graphene oxide (rGOx) as part of a self-powered wearable IoT sensor. We utilize an electronic probing station to measure electrical properties, take live ECG data to measure signal reliability, and provide detailed surface characterization through scanning electron microscopy. Finally, bonding between the layers of the composite and between composite and the Nylon® is analyzed by Fourier transform Infrared spectroscopy. Furthermore, a low power analog front end circuit designed in 65 nm CMOS process is presented to interface the sensor with a system on chip used in a wearable IoT healthcare device.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1116-6
      Issue No: Vol. 96, No. 2 (2018)
  • Towards smarter city: clever school transportation system
    • Authors: Majd Ghareeb; Ali Bazzi; Samih Abdul-Nabi; Zein Al-Abidin Ibrahim
      Pages: 261 - 268
      Abstract: Aligned with the recent revolution of smart cities concept, a lot of work has been done to support the education process in direct or indirect way. In countries like Lebanon, in which the choice of school does not depend on the residence location, parents are becoming more and more selective in the quality of schools they are choosing for their children. This fact may lead parents to choose a modern and good school even if it is far from their residence. On the other hand, and even if the school was close enough, the traffic congestion would make the on-feet journey of the kid to the school very risky. Driving children to school is a solution. However, it consumes a lot of time and effort each day in the morning and the afternoon. Hence, school buses are commonly used by all schools to take the student from and to his home. Nevertheless, waiting the bus each day to arrive is an exhausting and a time-wasting mission. In this paper we present a smart transportation system for school buses that helps in saving parents’ time, by avoiding waiting school buses in the morning and then in the afternoon to return kids back, especially with the increasing traffic jams at these hours. The proposed mobile and web application is designed to help parents, school and the bus to communicate automatically and easily via the application in order to detect kids’ arrival time. The bus application side will notify parents few minutes before its approaching to their homes. Furthermore, the system will allow parents to inform the school and hence the bus application side about the absence of their kid. The system has been efficiently and dynamically designed and implemented so it can be hosted and used by any school administration without the need to any major modifications. It has been tested on a summer school to prove its efficiency and marked an important positive feedback from the school and the parents’ sides.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1146-0
      Issue No: Vol. 96, No. 2 (2018)
  • Heartbeat rate measurement using microwave systems: single-antenna,
           two-antennas, and modeling a moving person
    • Authors: Sarah El-Samad; Dany Obeid; Gheorghe Zaharia; Sawsan Sadek; Ghais El Zein
      Pages: 269 - 282
      Abstract: This paper presents a microwave system for heartbeat rate measurement. This system is based on using a vector network analyzer and horn antennas. The system generates a continuous wave signal toward a person’s chest then the reflected signal is analyzed. The phase difference between the emitted and the reflected signals contains information about the chest movement; hence, the heartbeat rate can be extracted. In this work, several scenarios for detecting the heart activity are considered. The first scenario aims to provide a comparative study for using single-antenna and two-antennas microwave systems. Several radiated powers are considered in this scenario. Simultaneously with the microwave system, a wireless electrocardiograph is used as reference in order to determine the accuracy of the system. Measurements are performed in both cases when breathing normally and when holding the breath. The second scenario aims to test the ability of detecting the heartbeat activity of a person while moving. Measurements are performed while the subject walks towards the radar. Modeling is used for this purpose. The operating frequency used is 20 GHz in both scenarios. Signals are processed using wavelet transform and results show the ability to extract the heartbeat rate even with the presence of body movement.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1165-x
      Issue No: Vol. 96, No. 2 (2018)
  • Uncovering copy–move traces using principal component analysis, discrete
           cosine transform and Gabor filter
    • Authors: Alaa Hilal; Samer Chantaf
      Pages: 283 - 291
      Abstract: Digital image authenticity is always an imperative question to tackle whenever a digital image is being assessed for its content. Using digital forensic algorithms, the image will be evaluated for various traces left from numerous categories of manipulations including, among others, copy–move operations. Later this is considered an essential block in most digital image forgeries. It results in changing the information incorporated in a scene, hiding information from an image, or emphasizing some parts of the image. In this paper we propose and investigate two main approaches that differ in the feature extraction process in order to detect copy–move traces. In the first method, we use two-dimensional discrete cosine transform. Whereas in the second method, the phase response of Gabor filter is being used. Instead of being applied on the image directly, the two methods are applied over the first, the second or the third principal component of the image after being divided into overlapping blocks. Combining these conditions results in six basic implementations that are investigated under three parameters that must be optimized: block dimension, contrast and similarity thresholds. Results from testing and validation process demonstrate that the highest performance, in terms of false accept rate, is obtained when using Gabor filter associated with the first principal component of the image outperforming a reference method we implemented as well.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1139-z
      Issue No: Vol. 96, No. 2 (2018)
  • Exploitation of the ambient noise for the structural health monitoring of
           bars and tubes
    • Authors: K. Hourany; F. Benmeddour; E. Moulin; J. Assaad; D. Callens; Y. Zaatar
      Pages: 293 - 302
      Abstract: Image processing is a very vast field that includes both IT and applied mathematics. It is a discipline that studies the improvement and transformations of digital images hence permitting the improvement of the quality of these images and the extraction of information. The comparison of digital images is a paramount issue that has been discussed in several researches because of its various applications especially in the field of control and surveillance such as the Structural Health Monitoring using acoustic waves. In this study we will present an experimental study conducted on a bar and a tube in order to show the constant possibility of performing a structural health monitoring in a medium by studying the ambient noise present therein. Finally, a comparison algorithm described in a previous work (Hourany et al. in Leban Sci J 17(2):177–192, 2016) will be validated in order to show the influence of the presence of a defect in the structure on the cross-correlation.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1195-4
      Issue No: Vol. 96, No. 2 (2018)
  • A framework for enhancing mobile workflow execution through injection of
           flexible security controls
    • Authors: Borja Bordel; Ramón Alcarria; Augusto Morales; Ignacio Castillo
      Pages: 303 - 316
      Abstract: Mobile workflow execution is gaining importance as traditional process execution systems are employed in many new scenarios such as mobile networks or the Internet of Things. Unfortunately, in these solutions, security is still based on control loops or computer science techniques which have not evolved as fast as current mobile systems and applications. In this context, in order to improve the security level of these systems, it is necessary to create a security framework tightly coupled with the mobile workflow execution platforms. To contribute filling this gap, we propose a framework to inject security controls in workflows, which supports mobile execution and allows a flexible decision making. This solution models security as control points where some relevant previously defined indicators are evaluated. Depending on the obtained values, the framework takes corrective, preventive or adaptive actions, considering also the execution system capabilities and the workflow being executed. In order to evaluate the effectiveness and performance of the proposed solution we include experimental validation.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1167-8
      Issue No: Vol. 96, No. 2 (2018)
  • Compact substrate integrated waveguide sensor for liquids permittivity
    • Authors: Mohamad Khalil; Mahmoud Kamarei; Jalal Jomaah; Majida Fadlallah
      Pages: 317 - 326
      Abstract: A compact substrate integrated waveguide (SIW) liquids permittivity sensor structure that utilizes half-mode (HM) and slow-wave (SW) techniques for the miniaturization of SIW sensor is presented in this paper. First, HM miniaturization technique is applied to SIW resonator cavity. Sensor width is reduced by 50% in comparison to the conventional resonator. Due to the complexity of the relationship between the complex permittivity of the substrate and liquids under test, artificial neural network tool is used as a simple and fast method to determine liquids’ complex permittivity through the measured resonant frequency and unloaded quality factor. The sensor is fabricated, and good agreement with simulations is observed according to the obtained experimental results. In the second step, SW and HM techniques are applied to the SIW sensor. The application of the HM and SW techniques indicate that an increase in sensor miniaturization while obtaining a better quality factor could be achieved. Furthermore, HM-SW-SIW is not fabricated, and we are satisfied with simulation results since we have fabricated other components. Moreover, good correspondence between the measurement and simulation results is obtained. Finally, a comparison between the structures presented in this paper and those published previously is made, demonstrating that a minimum of 25% miniaturization is achieved while maintaining acceptable characteristics.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1192-7
      Issue No: Vol. 96, No. 2 (2018)
  • Use of the smart technology for water quality control: feedback from
           large-scale experimentation
    • Authors: Christine Saab; Elias Farah; Isam Shahrour; Fadi Hage Chehade; Sana Ounaies
      Pages: 327 - 335
      Abstract: The main purpose of drinking water network is to ensure safe quality of water to users. However, accidental contamination and malicious attacks in water networks can degrade the water quality. Such critical events threat the human health and lead to harmful diseases. Water utilities are concerned by the control of water quality. Since conventional methods based on laboratory analyses require several days, online control technology presents good opportunity to rapid detection of any water contamination. Devices based on smart technology have been developed for real-time control of the water quality. However, the use of these devices is recent and yet requires investigations. This paper presents feedback of the use of the smart technology in a large-scale experimentation conducted at the campus of Lille University within the European project “SmartWater4Europe”. Two devices are used: S::CAN, which measures various parameters such as Conductivity and Turbidity and EventLab, which measures the variation of the refractive index. This paper presents the implementation of these devices, data storage and management as well as analysis of recorded data.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1143-3
      Issue No: Vol. 96, No. 2 (2018)
  • Emotion recognition in Arabic speech
    • Authors: Samira Klaylat; Ziad Osman; Lama Hamandi; Rached Zantout
      Pages: 337 - 351
      Abstract: Automatic emotion recognition from speech signals without linguistic cues has been an important emerging research area. Integrating emotions in human–computer interaction is of great importance to effectively simulate real life scenarios. Research has been focusing on recognizing emotions from acted speech while little work was done on natural real life utterances. English, French, German and Chinese corpora were used for that purpose while no natural Arabic corpus was found to date. In this paper, emotion recognition in Arabic spoken data is studied for the first time. A realistic speech corpus from Arabic TV shows is collected. The videos are labeled by their perceived emotions; namely happy, angry or surprised. Prosodic features are extracted and thirty-five classification methods are applied. Results are analyzed in this paper and conclusions and future recommendations are identified.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1142-4
      Issue No: Vol. 96, No. 2 (2018)
  • A novel low SAR water-based mobile handset antenna
    • Authors: Najat Nasser; Dina Serhal; Rabih Barake; Mohammad Rammal; Patrick Vaudon
      Pages: 353 - 361
      Abstract: The effect of mobile phones on human health is becoming a serious concern in the last decade. This paper suggests a novel water-based cellular phone antenna for reducing the electromagnetic wave radiation toward human head. Two antennas are considered: a single band PIFA operating at 1.8 GHz, and a dual band PIFA operating at 900 MHz and 1.8 GHz. The specific absorption rate (SAR) is decreased up to 0.6 W/kg by limiting the propagation of near electromagnetic fields toward the human head and therefore reducing the current density distribution. The reduction of SAR is carried out by introducing an U-edge wall made of an absorbing water material at each corner of the ground plane.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1130-8
      Issue No: Vol. 96, No. 2 (2018)
  • A 12-Gb/s HDMI 2.1 quarter-rate transmitter in 28-nm bulk CMOS process
    • Authors: Hyochang Kim; Changsik Yoo
      Pages: 363 - 370
      Abstract: A four-lane 12-Gb/s per lane high-definition multimedia interface (HDMI) 2.1 transmitter is developed in 28-nm bulk CMOS process. To relieve the burden of the generation and distribution of clock, quarter-rate architecture is employed where the duty-cycle and phase spacing errors of multi-phase clock are automatically corrected by analog–digital converter based digital logic. The output driver terminated with 3.3-V supply is implemented only with 1.8- and 1.0-V transistors which are protected from over-voltage stress by double-cascoding with adaptive bias generation. The 4-lane HDMI 2.1 transmitter consumes 12.0-mW/lane at 12-Gb/s and occupies 0.12-mm2 active area.
      PubDate: 2018-08-01
      DOI: 10.1007/s10470-018-1232-3
      Issue No: Vol. 96, No. 2 (2018)
  • MOS-only polyphase filter with small chip area
    • Authors: Hacer Atar Yildiz
      Abstract: In this paper, it is aimed to realize a systematic approach for the realization of the MOS only complex polyphase filters which occupy small chip area. For this purpose, we used a technique based on adding cross-coupled transistors realizing local positive feedback, which, in turn, increases filter time constants. Thanks to this method, a substantial reduction in the filter chip area is achieved without having to use bulky on chip capacitors. The usefullness of the approach is validated by comparing the layouts of the designed CMOS circuit with the conventional RC polyphase filter. Post-layout simulation results using SPECTRE in CADENCE design environment are provided to verify feasibility of the proposed complex filter.
      PubDate: 2018-07-19
      DOI: 10.1007/s10470-018-1271-9
  • A systematic approach towards fault-tolerant design of QCA circuits
    • Authors: Dharmendra Kumar; Debasis Mitra
      Abstract: Quantum-dot cellular automata (QCA) has emerged as a crucial alternative to CMOS technology in the recent years. However, the main hindrance in advancement of QCA technology is that it suffers from various types of manufacturing defects and variations. Several cell misplacement defects introduced in the deposition phase of manufacturing process of QCA have been found to be frequent. Manifestation of such defects may greatly impact the functionality and performance of QCA circuits. A few designs of various QCA modules based on some ad-hoc tricks have shown to diminish the negative effect of defects significantly, thereby making the design fault(defect)-tolerant. However, in the absence of proper insights, they fail to provide any guideline towards fault-tolerant design of QCA circuits in general. Moreover, these designs mostly compromise a lot with the other important design parameters such as area, latency. In this paper, we propose a set of comprehensive guidelines that will elucidate the path for systematic design of practical fault-tolerant circuits in QCA. The guidelines have been derived based on some critical observations made during extensive simulation experiments carried out in QCADesigner followed by theoretical explanation. The usage of the proposed guidelines has been illustrated by designing an adder circuit.
      PubDate: 2018-07-18
      DOI: 10.1007/s10470-018-1270-x
  • Two-channel forward NLMS algorithm combined with simple variable
           step-sizes for speech quality enhancement
    • Authors: Redha Bendoumia
      Abstract: This paper addresses the problem of speech quality enhancement by adaptive two-channel filtering algorithms. Recently, the forward blind source separation structure has been proposed and combined with normalized least-mean-square algorithm (FNLMS). The main drawback of two-channel FNLMS algorithm is its poor performance in steady state regime when the fixed step-sizes values are selected large. However, the slow convergence rate is observed with the small fixed step-size values. In this paper, we propose three new combinations of the basic FNLMS algorithm with simple variable step-sizes approaches, for improving both the steady state values and convergence rate (noted TVSF for Two-channel Variable Step-size Forward). In these modifications, we propose new configuration of two-channel forward structure by three simple and efficient variable step-sizes estimations. To confirm the good performance of three proposed TVSF algorithms compared with the classical fixed-step-size version, we have carried out several simulations in very noisy situations using several criteria.
      PubDate: 2018-07-13
      DOI: 10.1007/s10470-018-1269-3
  • Quad-band bandstop filter modeled by comprising quad-section
           stepped-impedance resonator
    • Authors: Rajendra Dhakal; Seongsoo Cho; Bhanu Shrestha; Changho Seo
      Abstract: This paper presents the implementation of symmetric folded meandered-line structure that includes a quad-section stepped impedance resonator (QSIR). The existence of four stop bands at 1.81/5.16/8.08/10.90 GHz was successfully synthesized by the incorporation of QSIR comprising an electrical length of 0.84λg–0.19λg–0.15λg–0.22λg. The throughput of the filter was further improved by the inclusion of five attenuation poles at 340 MHz, 3.24, 6.38, 9.45, and 11.92 GHz with the rejection levels of − 32.19, − 25.19, − 28.68, − 21.57, − 32.63 dB, respectively. The concept achieves a wide fractional bandwidth of 59/18.23/13.86/10.46% at 1.81/5.16/8.08/10.90 GHz, respectively. Noticeable attenuation of − 25 dB at the respective stop bands in the frequency range of 2.34–1.28, 5.60–4.66, 8.56–7.44, and 11.35–10.21 GHz, with a spurious-free response up to 13 GHz was confirmed. Furthermore, a sharp response is demonstrated by a simulation and shows strong agreement with the measurement results.
      PubDate: 2018-07-11
      DOI: 10.1007/s10470-018-1260-z
  • Correction to: Design of a fA wide dynamic range ADC for current sensing
    • Authors: Evgenia Voulgari; Matthew Noy; Francis Anghinolfi; François Krummenacher; Maher Kayal
      Abstract: The original article can be found online at
      PubDate: 2018-07-06
      DOI: 10.1007/s10470-018-1264-8
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