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29,602 Article Results

A Concealment Aware UEP scheme for H.264 using RS Codes

10.11591/ijeecs.v6.i3.pp671-681
Deevya Indoonundon , Tulsi Pawan Fowdur , Sunjiv Soyjaudah
H.264/AVC is currently the most widely adopted video coding standard due to its high compression capability and flexibility. However, compressed videos are highly vulnerable to channel errors which may result in severe quality degradation of a video. This paper presents a concealment aware Unequal Error Protection (UEP) scheme for H.264 video compression using Reed Solomon (RS) codes. The proposed UEP technique assigns a code rate to each Macroblock (MB) based on the type of concealment and a Concealment Dependent Index (CDI). Two interleaving techniques, namely Frame Level Interleaving (FLI) and Group Level Interleaving (GLI) have also been employed. Finally, prioritised concealment is applied in cases where error correction is beyond the capability of the RS decoder. Simulation results have demonstrated that the proposed framework provides an average gain of 2.96 dB over a scheme that used Equal Error Protection (EEP).
Volume: 6
Issue: 3
Page: 671-681
Publish at: 2017-06-01

Regional Variation in Attitude of Mental Health Professionals Towards Tackling Illicit Drug-use and Drug-related Disorders

10.11591/ijphs.v6i2.6574
Olubusayo Akinola , Wen-Hung Kuo , John Oswald , Olawunmi Obisesan
This study sought to assess the attitudes of Mental Health Professionals (MHPs) towards tackling illicit drug use and drug-related disorders in Nigeria and to explore regional variations in attitude. Based on the validated Substance Abuse Attitude Survey (SAAS), a quantitative cross-sectional survey was conducted in a randomized sample of 292 MHPs practicing in neuropsychiatric hospitals and mental health departments of teaching hospitals from four geopolitical zones of Nigeria. A response rate of 81.1% was achieved. MHPs tended towards non-permissive, moralistic and stereotypic spectrum and exhibited distinctly defined attitude towards their professional role. The Kruskal-Wallis analysis established significant regional variation in the attitude of multidisciplinary MHPs, H (3)=18.727, p< .0001 reflecting a stochastic domination across the region; therefore a step-down follow-up analysis was conducted. This analysis revealed that the distribution of attitude total-score varies significantly between the South-south and the Southwestern region (p< .0001), the northeastern and southwestern region of the country (p< .028).  A holistic approach towards standardization of drug treatment and care that takes into consideration possible regional variation in attitudes of MHPs should be implemented to foster the reintegration and rehabilitation of drug-using populations into the mainstream society.
Volume: 6
Issue: 2
Page: 172-182
Publish at: 2017-06-01

An Assessment of Health-Economic Burden of Obesity Trends with Population-Based Preventive Strategies in a Developed Economy

10.11591/ijphs.v6i2.6642
Prerna Bhasin
The burden of obesity varies with age, ethnicity, socio-economic status and state economies. All new projections should hence accommodate population ageing, and other population changes such as immigration, health-care system reform, or technological advances for disease treatment for a comprehensible assessment of global burden. The unfordable and expensive nature for reversing the obesity tide arises from policies developed to combat obesity. Most of these approaches aim at bringing the problem under control, rather than affecting a cure, and obviously require a multi-disciplinary and intensive regimen. Prevention is the only feasible option and is essential for all affected countries. Yet it is not simple to have population based UK-wide strategic framework for tackling obesity. Besides existence of multiple layers of governance, there are clear demarcations between targets in diet; nutrition and physical activity level between regions some of which are not realistic.  Population based approaches target policies and process, aiming for a transition towards healthy population diets, activity levels and weight status. It is essential to understand these aspects differ culturally and between and within countries. There are still no clear and appropriate answers about answer when, where, why, and, how costs accrue in obese populations, further long term commitments are required for the same. Most population-based prevention policies are cost effective, largely paying for themselves through future health gains and resulting reductions in health expenditures. Therefore these prevention programs should be high on the scientific and political agendas.
Volume: 6
Issue: 2
Page: 124-133
Publish at: 2017-06-01

Do Stressed Women have Abnormal Glucose Level?

10.11591/ijphs.v6i2.6604
Amirul Adli M. , Gaushinee V. , Abdullah M. S. , Rafaee R. , Syahirah M T. , Amirah M. , Chut Kartika B. , Lily Alma Nadirah A. J. , Sabariah A. H.
Stress is a physical, mental and emotional response to a challenging event and is a normal part of everyone's life.  It has been linked to suppression of the immune system and could increase the risk of getting ill or alter the course of existing illness.  Studies show that stress is associated with increased HBA1c, especially in females.  Therefore the purpose of this study was to determine the prevalence of stress with abnormal glucose value among the women community.  A cross-sectional study was conducted among 168 residents of Mukim Sg. Pelek, Sepang, Selangor.  Participants were selected through a simple random sampling and were asked to answer questionnaires provided.  The Depression, Stress and Anxiety (DASS-21) scale was used to determine the prevalence of stress and random blood sugar (RBS) for measurement of the glucose level.  Data was analyzed using Statistical Package Social Sciences (SPSS) version 20 and Chi-square analyses for determining the association between variables.  The study found that 58.3% of the stressed women in the community have abnormal blood glucose level, which indicated that the risk of getting diabetes is slightly high.  This finding has important implication for designing strategic plans for intervention program on awareness towards coping with stress positively.
Volume: 6
Issue: 2
Page: 164-171
Publish at: 2017-06-01

Socio-Cultural Factors Influencing Uptake of Skilled Childbirth Services among Women in Kaiti Division, Makueni District (Kenya)

10.11591/ijphs.v6i2.6638
Anthony Wambua Mathulu , Benard Wambua Mbithi
Each year, over 500,000 women die from the complications of pregnancy and child birth, almost all of them in the developing countries. This trend can be addressed by increasing the rates of skilled care during childbirth. This study therefore sought to establish the socio-cultural factors influencing uptake of skilled childbirth care which has remained low in Kaiti Division. The researchers applied a descriptive cross-sectional study design which involved women of childbearing age (15-49 years). The study was conducted in March 2010 and had a sample size of 246 women which was randomly selected from the estimated target population of 12,077. The researchers applied both quantitative and qualitative approaches. The tests of significance employed included Fisher’s exact test, chi-square, test and logistic regression. The study established that the proportion of women attended to by the skilled attendant within various age cohorts was higher (58.9%) amongst the youth/adolescent (15-24 years) (P-value = 0.091> 0.05, c2 10.915 df 6).). Skilled attendance declined among the grand-multiparas (para4 and above) from 7.7% in Para 4-5 to 2% in Para 6+ (P-value = .000<0.05, c2 34.888 df 3; Para 1(p =0.000, OR 28.391), Para 2-3 (p =0.000, OR 7.564), Para 4-5(p=0.030, OR 3.493) Further findings indicated that the principal decision maker (46.7%) on type of assistant in the last delivery was the woman (P-value = 0.000 <0.05, c2 56.076 df 5). However, the husband was the leading (39.5%) decision maker in use of a skilled assistant in the last delivery (p=0.000, OR 15.667). More than two thirds (70.7%) of the respondents who performed a ceremony prayed for safe delivery in their last delivery. The study concluded that women’s parity, decision making and religion were significant in use of skilled childbirth services.
Volume: 6
Issue: 2
Page: 101-108
Publish at: 2017-06-01

Embedded Simple Excited Automotive Alternator Modeling using Magnetic Equivalent Circuits

10.11591/ijece.v7i3.pp1145-1153
Moufida Klach , Helmi Aloui , Rafik Neji , Mohamed Gabsi , Michel Lecrivain
This paper presents the modeling by Magnetic Equivalent Circuit model (MEC) of a Simple Excited Automotive Alternator (SE2A) where DC-excitation winding is transferred from rotor side to statorone rather than in conventional automotive claw pole alternators, to overcome the disadvantages of the ring-brush system. Following the resolution of the MEC using Newthon-Raphson numerical method, the alternator performances at both no-load and under resistive load regimes is achieved considering the saturation effect. It has been found that alternator’s performances carried out using the proposed MEC are with closed proximity to experimental records on a built prototype of the considered alternator.
Volume: 7
Issue: 3
Page: 1145-1153
Publish at: 2017-06-01

High Speed Under-Sampling Frequency Measurements on FPGA

10.11591/ijece.v7i3.pp1316-1325
Seyed Ehsan Yasrebi Naeini , Ali Maroosi
A Sampling rate is less than Nyquist rate in some applications because of hardware limitations. Consequently, extensive researches have been conducted on frequency detection from sub-sampled signals. Previous studies on under-sampling frequency measurements have mostly discussed under-sampling frequency detection in theory and suggested possible methods for fast under-sampling frequencies detection. This study examined few suggested methods on Field Programmable Gate Array (FPGA) for fast under-sampling frequencies measurement. Implementation of the suggested methods on FPGA has issues that make them improper for fast data processing. This study tastes and discusses different methods for frequency detection including Least Squares (LS), Direct State Space (DSS), Goertzel filter, Sliding DFT, Phase changes of Fast Furrier Transform (FFT), peak amplitude of FFT to conclude which one from these methods are suitable for fast under-sampling frequencies detection on FPGA. Moreover, our proposed approach for sub-sampling detection from real waveform has less complextity than previous approaches from complex waveform.
Volume: 7
Issue: 3
Page: 1316-1325
Publish at: 2017-06-01

Wireless Sensor Node with Passive RFID for Indoor Monitoring System

10.11591/ijece.v7i3.pp1459-1466
Norsaidah Muhamad Nadzir , M.K.A. Rahim , F. Zubir , A. Zabri , H.A. Majid
This paper discusses the development of an indoor monitoring system based on passive radio frequency identification (RFID) system and Raspberry Pi 3. There are two algorithms designed for this project where the first is to link the RFID module to the Raspberry Pi 3, and the other one is to send the data obtained to a database over wireless network via UDOO Quad as a secondary router. The result is then displayed on a localhost generated using XAMPP. The objective of this project is to realize a monitoring system that incorporates different systems such as Raspberry Pi 3, UDOO Quad, and also RFID module by designing algorithms using Python and C programming language. Plus, the performance of the system is also analyzed using different type of antennas such as the Raspberry Pi 3 Antenna, monopole antenna, and a Yagi Uda antenna in terms of power received versus distance in both line of sight position and non-line of sight position. Finally, antenna that produces the best performance for line-of-sight (LOS) propagation is Yagi Uda antenna while monopole antenna is better when it comes to non-line-of-sight (NLOS) propagation.
Volume: 7
Issue: 3
Page: 1459-1466
Publish at: 2017-06-01

Impact of Distributed Generation on Voltage Profile in Radial Feeder

10.11591/ijeecs.v6.i3.pp583-590
Charles R. Sarimuthu , Vigna K. Ramachandaramurthy , H. Mokhlis , K.R. Agileswari
The use of distributed generation (DG) within distribution systems has increased for the last two decades due to worldwide increase in demand for electricity and governmental policy change from “conventional” energy to “green” energy. High levels of penetration of DG have many significant benefits but also come with many drawbacks such as voltage drop and power losses. This study presents the impact of DG at different locations in a distribution feeder in terms of the feeder voltage profile. A radial distribution system is simulated using PSCAD/EMTDC simulation software while changing the size and location of DG in the system. The obtained results are used for better understanding on the impact of DG on voltage profile in radial distribution feeder.
Volume: 6
Issue: 3
Page: 583-590
Publish at: 2017-06-01

A Novel Right Handed Circular Polarization Folded Reflectarray Antenna at 60 GHz

10.11591/ijece.v7i3.pp1580-1587
Mohd Fairus Mohd Yusoff , Ronan Sauleau , Zaharah Johari , Mohamad Kamal A. Rahim , Huda A. Majid
A novel right-handed circular polarization (RHCP) folded reflectarray antenna with optimized parameters is presented at 60GHz. The RHCP folded reflectarray antenna is designed using left handed circularly polarized selective surface (LHCPSS) Pierrot unit cell. Through simulation, it is shown that the antenna operates well at 60GHz. The maximum antenna directivity is 19dB with a reflection coefficient below -15dB. The radiation patterns showed good responses with side lobes level below -10dB. In addition, the best axial ratio at 60GHz is achieved as 0.75dB.
Volume: 7
Issue: 3
Page: 1580-1587
Publish at: 2017-06-01

Comparison of Accuracy Measures for RS Image Classification using SVM and ANN Classifiers

10.11591/ijece.v7i3.pp1180-1187
S.V.S. Prasad , T. Satya Savithri , Iyyanki V. Murali Krishna
The accurate land use land cover (LULC) classifications from satellite imagery are prominent for land use planning, climatic change detection and eco-environment monitoring. This paper investigates the accuracy and reliability of Support Vector Machine (SVM) classifier for classifying multi-spectral image of Hyderabad and its surroundings area and also compare its performance with Artificial Neural Network (ANN) classifier. In this paper, a hybrid technique which we refer to as Fuzzy Incorporated Hierarchical clustering has been proposed for clustering the multispectral satellite images into LULC sectors. The experimental results show that overall accuracies of LULC classification of the Hyderabad and its surroundings area are approximately 93.159% for SVM and 89.925% for ANN. The corresponding kappa coefficient values are 0.893 and 0.843. The classified results show that the SVM yields a very promising performance than the ANN in LULC classification of high resolution Landsat-8 satellite images.
Volume: 7
Issue: 3
Page: 1180-1187
Publish at: 2017-06-01

Evaluation of Feature Reduction using Principal Component Analysis and Sequential Pattern Matching for Manet

10.11591/ijece.v7i3.pp1228-1239
M. Reji , P.C. Kishore Raja , Bhagyalakshmi M
In Mobile Ad hoc Networks (MANETs) there are some security problems because of portability, element topology changes, and absence of any framework. In MANETs, it is of extraordinary significance to identify inconsistency and malignant conduct. With a specific end goal to recognize malignant assaults by means of interruption identification frameworks and dissect the information set, we have to choose some components. Thus, highlight determination assumes basic part in recognizing different assaults. In the writing, there are a few recommendations to choose such elements. For the most part, Principal Component Analysis (PCA) breaks down the information set and the chose highlights. In this paper, we have gathered a list of capabilities from some cutting edge works in the writing. Really, our reproduction demonstrates this list of capabilities identify inconsistency conduct more precise. Likewise, interestingly, we utilize PCA for investigating the information set. In contrast to PCA, our results show Sequential pattern mining (SPM) cannot be affected by outlier data within the network. The  normal and attack states are simulated and the results are analyzed using NS2 simulator.
Volume: 7
Issue: 3
Page: 1228-1239
Publish at: 2017-06-01

Portable Electrochemical Sensing System Attached to Smartphones and Its Incorporation with Paper-based Electrochemical Glucose Sensor

10.11591/ijece.v7i3.pp1423-1429
Takuya Fujimoto , Shogo Kawahara , Yukio Fuchigami , Shoji Shimokawa , Yosuke Nakamura , Kenichi Fukayama , Masao Kamahori , Shigeyasu Uno
This paper described the development of a small and low cost biosensor consisting of a smartphone-based electrochemical biosensor device and a paper-based biosensor. The device harvested power from the smartphone and transferred data through audio jack. We designed CMOS circuits including a power supply circuit, a potentiostat, and a ΔΣ modulator. The fabrication of a paper-based biosensor was simple: the three electrodes were directly drawn on chromatography paper using a carbon pencil. The paper-based biosensor was low cost, disposable, portable and friendly to the environment. The sensing system was designed to perform the chronoamperometry measurement, and the glucose concentration in a liquid specimen was detected. Results showed that the sensing system was capable of measuring the glucose concentration as precisely as expensive equipments.
Volume: 7
Issue: 3
Page: 1423-1429
Publish at: 2017-06-01

SAR Levels for Irradiation by a Crumpled 900 MHz Flexible Diamond Dipole

10.11591/ijece.v7i3.pp1546-1553
N. A. Elias , N. A. Samsuri , M. K. A. Rahim , C. J. Panagamuwa , W. Whittow
In this work, the antenna performance and Specific Absorption Rate (SAR) levels in a homogeneous phantom exposed to 900 MHz flexible diamond dipole antenna are investigated under different crumpling deformation conditions. The numerical simulations of the realistic complex two dimensional crumpling are performed by using Finite Integration Technique (FIT) which is applied in Computer Simulation Technology (CST) Microwave Studio. The validation of results with the industry standard DASY4 robot SAR measurement system is made possible with the use of homogenous phantom model. The 1 g, 10 g and point SAR are enhanced by 28.33 %, 36.75 % and 9.55 % respectively due to the antenna crumpling deformation. The short length ripple investigated in this paper shows the highest relative SAR increment.
Volume: 7
Issue: 3
Page: 1546-1553
Publish at: 2017-06-01

Wind Farm Management using Artificial Intelligent Techniques

10.11591/ijece.v7i3.pp1133-1144
Boualam Benlahbib , Farid Bouchafaa , Saad Mekhilef , Noureddine Bouarroudj
This paper presents a comparative study between genetic algorithm and particle swarm optimization methods to determine the optimal proportional–integral (PI) controller parameters for a wind farm management algorithm. This study primarily aims to develop a rapid and stable system by tuning the PI controller, thus providing excellent monitoring for a wind farm system. The wind farm management system supervises the active and reactive power of the wind farm by sending references to each wind generator. This management system ensures that all wind generators achieve their required references. Furthermore, the entire management is included in the normal controlling power set points of the wind farm as designed by a central control system. The performance management of this study is tested through MATLAB/Simulink simulation results for the wind farm based on three doublyfed induction generators
Volume: 7
Issue: 3
Page: 1133-1144
Publish at: 2017-06-01
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