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27,762 Article Results

Compact Meander Line Telemetry Antenna for Implantable Pacemaker Applications

10.11591/ijeecs.v10.i3.pp883-889
N. H. Sulaiman , N. A. Samsuri , M. K. A. Rahim , F. C. Seman , M. Inam
The demand for health technology is increasing rapidly especially in telemetry applications. These applications generally use implanted antennas to be utilized for data transfer from patients to another reader device. This procedure can make the health care more efficient, since it provides fast diagnosis and treatment to the patient. This work presents a design of telemetry antenna to be used in Pacemaker application in Medical Implant Communication Services (MICS) (401 MHz-406 MHz). By introducing Compact Meander Line Telemetry Antenna (CMLTA), length (Ls) and width (Ws) of substrate have been reduced by 36.84% and 40% respectively. The proposed antenna offers advantages of easy fabrications, low cost and light weight with a 133 MHz bandwidth.
Volume: 10
Issue: 3
Page: 883-889
Publish at: 2018-06-01

The Effect of Kangaroo Mother Care Method toward Weight Gain and Length of Stay among Low Birth Weight Baby

10.11591/ijphs.v7i2.12632
Muliani Muliani , Lisnawati Lisnawati
Infant mortality needs to get serious attention. Special efforts are relatively easy and inexpensive in the handling and care is through treatment methods can improve the stability ofKangaroo Mother Care(KMC) for babies and breastfeeding.The effort hopefully will contribute to weight gain which take effect on the duration of treatment. The study design was Quasi Experiment with Prepost one group design. Samples were mothers with a history of low birth weight deliveries, with sample selection technique in consecutive sampling and sample number 36 babies. The samples criteria were infants birth weight between 1,000-2,100 gr, weight of infant when KMC was started between 900-2,100 gr, weight of infants post KMC were 1,300-2,500 gr, babies born with premature or small period of pregnancy. KMC method has the potential to improve the Weight on Low Birth Weight (LBW).Duration of KMC has no effect on weight gain but can accelerate the length of LBW in hospital. The longer do KMC, the shorter duration of hospital LBW in hospital. LBW should be treated KMC to accelerate weight gain and reducing the length of hospitalization. 
Volume: 7
Issue: 2
Page: 91-96
Publish at: 2018-06-01

Fine-Grained Overhead Characterisation of Cross-ISA DBTO for Multicore Processor

10.11591/ijeecs.v10.i3.pp1036-1044
Joo-On Ooi , Fawnizu Azmadi Hussin , Mohd. Nordin Zakaria
The emergence of modern portable software, start to behaved hybrid short-long running combined applications, in which an active apps may invoked others to fulfill task requirements. Thus the implementation of Dynamic Translation and Optimisation (DBTO) into heterogeneous multicore system-on-chip (SoC) will require careful re-study, to ensure efficient usage of most available cores. In order to improve efficiency in supporting this Instruction Set Architecture (ISA) diversity of computing platforms, mix modes of statically and dynamically Binary Translation and Optimization system, or DBTO, need to utilize concurrent compilation techniques, to better service the combined applications processing. This research deep dived into finer-grained DBTO overhead analysis, to provide categorization and characterization of overhead sources in breakdown stages during concurrent instruction processing. A dual-engine of translation and optimization is constructed for finer managemnt of start-up overheads. Helper functions, i.e. LoadLink/StoreCondition (LL/SC) are derived from atomic instructions, to create multiple helper thread supported by multiple host cores, for better instruction translation and optimization operation concurrently. Our experiment platform, evaluated through PARSEC-3.0 benchmark suite, shows performance improvement approaching 2.0x for apps based programs and 1.25x for kernel based programs, for x86 to X86-64 emulation. This technique possess great potential and serve as research based platform for future binary translation technique development, including adaptive method.
Volume: 10
Issue: 3
Page: 1036-1044
Publish at: 2018-06-01

A Compact Bandpass Filter Using A T-Shaped Loaded Open-ended Stub Resonator

10.11591/ijeecs.v10.i3.pp867-874
Ali Nyangwarimam Obadiah , Mohamad Rijal Hamid , Mohamad Kamal Abd Rahim , Noor Asniza Murad
This paper proposes a compact bandpass filter using a loaded open-ended T-shaped stub. The open-ended T-shaped stub is loaded with vertical resonators placed across. The key advantage of using vertical resonators in the design is the simplicity and low insertion loss it provides. The structure used is an open-ended stub attached on one end to the transmission line (λ/2) to form a T-shaped resonator (λ/4) having vertical resonators placed across. The vertical resonator position alters the position at which the transmission zero occurs. A pair of the T-shaped resonator is placed on parallel sides of the feed line. The proposed filter is designed with the aid of Computer Simulation Technology Microwave Studio Software. The proposed concept is verified by designing filters with four different vertical resonator positions. The filter possesses a good rejection and low insertion loss of < 2dB with Chebyshev response. This filter is suited for modern-day communication applications since it shows good rejection of out of band signals.
Volume: 10
Issue: 3
Page: 867-874
Publish at: 2018-06-01

Improvement of Power Quality Using Fuzzy Controlled D-STATCOM in Distribution System

10.11591/ijai.v7.i2.pp83-89
B. Santhosh Kumar , K.B. Madhu Sahu , K.B. Saikiran , CH. Krishna Rao
This paper investigates the problems associated with distribution system in terms of delivery of clean power and their solutions. Power quality has become a major issue in the present power system network. The network has mostly inductive nature.  This draws more reactive power.  This causes harmonics and voltage unbalance problems. So maintain the proper operation of interconnected power system, we are using one of the facts devices such as fuzzy controlled D-statcom. It provides suitable compensation and there by maintain proper power factor and also reduces harmonic contents.  The simulation is taken out by MATLAB/SIMULINK and the result shows the effectiveness of GA (Genetic algorithm) simulation. Optimized Fuzzy controlled D-STATCOM for improvement of power quality.
Volume: 7
Issue: 2
Page: 83-89
Publish at: 2018-06-01

Soil-transmitted Helminths Infection among Primary School Students: which Policy bhould be Emphasized?

10.11591/ijphs.v7i2.12940
Bumi Zulheri Herman , Ranisa Handayani Ramlan , Ferawati Rahmat Wahab
Soil Transmitted Helminths is a neglected disease and remain untouched in Balikpapan despite of its deteriorating effects on child health. A cross-sectional study to reveal the actual infection among school-age children in Balikpapan was conducted from January-March 2016 involved 101 students from 10 schools. All subjects and parents were interviewed using validated questionnaire followed by stool examination. All data underwent univariate and bivariate test using fisher exact’s test, ANOVA and logistic regression test (95% CI).  Rate of positive infection was 62.4%. Associated risk factors were, routine hand wash (p=0.004 OR=0.050), taking oral prophylaxis (p=0.001 OR=0.182), use of footwear (p=0.009 OR=2.529), involved in “Young Doctor Program” or other health promotion program (p=0.014 OR 0.324) and the type of toilet at home (p=0.048). Knowledge about worm infection (p=0.659), history of previous worm infection (p=0.768) and access to clean water at home (p=0.361) were insignificantly associated with infection rate. Community service (such as “The Clean, Green And Healthy” program) (p=0.037 OR 0.395) and Community Health Care (p=0.000 OR 0.155) were associated with lower risk of infection. Regression test shows that community health care and oral prophylaxis were the most influencing factor and these factors should be considered as the main focus of intervention.
Volume: 7
Issue: 2
Page: 130-136
Publish at: 2018-06-01

Random, PSO and MDBPSO based Sensor Deployment in Wireless Sensor Network

10.11591/ijeecs.v10.i3.pp1278-1286
Aparna Pradeep Laturkar , Sridharan Bhavani , DeepaliParag Adhyapak
Wireless Sensor Network (WSN) is emergingtechnology and has wide range of applications, such as environment monitoring, industrial automation and numerous military applications. Hence, WSN is popular among researchers. WSN has several constraints such as restricted sensing range, communication range and limited battery capacity. These limitations bring issues such as coverage, connectivity, network lifetime and scheduling and data aggregation. There are mainly three strategies for solving coverage problems namely; force, grid and computational geometry based. This paper discusses sensor deployment using Random; Particle Swarm Optimization (PSO) and grid based MDBPSO (Modified Discrete Binary Particle Swarm Optimization) methods. This paper analyzes the performance of Random, PSO based and MDBPSO based sensor deployment methods by varying different grid sizes and the region of interest (ROI). PSO and MDBPSO based sensor deployment methods are analyzed based on number of iterations. From the simulation results; it can be concluded that MDBPSO performs better than other two methods.
Volume: 10
Issue: 3
Page: 1278-1286
Publish at: 2018-06-01

A Low Quiescent Current Fast Settling Capacitor-less Low Drop Out Regulator Employing Multiple Loops

10.11591/ijeecs.v10.i3.pp1070-1079
Suresh Alapati , Patri Sreehari Rao
This paper presents a fast transient and low noise capacitor-less LDO using multiple loops. The proposed LDO exploits adaptive biasing, bulk modulation and a fast reacting control loop for achieving high performance striking reasonable tradeoffs among quiescent current, transient response and stability. The proposed LDO offers a load regulation of 0.095µV/mA while consuming quiescent current of 16 µA. It exhibits a load transient of 134.23mV with a settling time of 240.8ns against 0 to 100mA load variation with 40pF output capacitor. It exhibits an integrated noise of 31.027 pV2 /Hz at 10 Hz for a maximum load current of 100mA. The proposed LDO is designed using 0.18-µm 1P6 CMOS process.
Volume: 10
Issue: 3
Page: 1070-1079
Publish at: 2018-06-01

Development of Automatic Mixing Process for Fertigation System in Rock Melon Cultivation

10.11591/ijece.v8i3.pp1913-1919
Muhammad Khairie Idham Abd Rahman , Salinda Buyamin , M. S. Zainal Abidin , Musa Mohd Mokji
This work proposed an automatic mixing system of nutrient solution for rock melon fertigation according to the required electrical conductivity (EC) level. Compared to the manual practice, this automatic system will ensure continuous supply of mixed nutrient solution without the need to daily check and mix new nutrient. Thus, this easy to use and low cost automatic system will reduce the burden of the farmers. This system uses an EC sensor to automatically check the concentration level of the mixed nutrient solution. Other than that, the system only consists of electronic pumps for mixing process and an Arduino board as the controller. The controller will monitor the EC level and run the mixing process when the EC level is below the required level. By calibrating the EC sensors, the test shows that the automatic mixing system is able to accurately keep the mixed nutrient solution concentration in a 400 L mixing reservoir at several required levels.
Volume: 8
Issue: 3
Page: 1913-1919
Publish at: 2018-06-01

Evaluation of MAC’s Distributed Queuing Algorithm for Internet of Things Applications

10.11591/ijeecs.v10.i3.pp966-973
Mabruka Mohamed Agel , Mohamed Hadi Habaebi , Sameha Alnahdi , Md Rafiqul Islam
Internet of Things and Machine-to-Machine communications have contributed significantly on our daily life. Nevertheless, from the networking aspect they introduced a huge challenge for the performance and quality of services of networks. In this paper, a Distributed Queuing Access for LTE protocol was analyzed to enhance the random access performance for Machine to machine (M2M) applications. The M2M communications presented countless solicitations that can over-burden the access channel of the present LTE network. This prompts to an expansion in the collision probability and results in a noteworthy access delay. The introduced protocol does improve the performance of Medium access layer in terms of blocking probability, access delay, energy utilization and number of re-transmissions attempts in comparison with the standard LTE protocol without altering the existing LTE outline structure. The new protocol is intended to ensure that the random access procedure of the ordinary UE gadget will not be affected bringing about consistent implementation for the proposed convention.
Volume: 10
Issue: 3
Page: 966-973
Publish at: 2018-06-01

Antenna Azimuth Position Control System using PID Controller & State-Feedback Controller Approach

10.11591/ijece.v8i3.pp1539-1550
Aveen Uthman , Shahdan Sudin
This paper analyzed two controllers with the view to improve the overall control of an antenna azimuth position. Frequency ranges were utilized for the PID controller in the system; while Ziegler-Nichols was used to tune the PID parameter gains. A state feedback controller was formulated from the state-space equation and pole-placements were adopted to ensure the model design complied with the specifications to meet transient response. MATLAB Simulink platform was used for the system simulation. The system response for both the two controllers were analyzed and compared to ascertain the best controller with best azimuth positioning for the antenna. It was observed that state-feedback controller provided the best azimuth positioning control with a little settling time, some value of overshoot and no steady-state error is detected.
Volume: 8
Issue: 3
Page: 1539-1550
Publish at: 2018-06-01

Economic and Emission Dispatch using Whale Optimization Algorithm (WOA)

10.11591/ijece.v8i3.pp1297-1304
Faseela C. K. , H. Vennila
This paper work present one of the latest meta heuristic optimization approaches named whale optimization algorithm as a new algorithm developed to solve the economic dispatch problem. The execution of the utilized algorithm is analyzed using standard test system of IEEE 30 bus system. The proposed algorithm delivered optimum or near optimum solutions. Fuel cost and emission costs are considered together to get better result for economic dispatch. The analysis shows good convergence property for WOA and provides better results in comparison with PSO. The achieved results in this study using the above-mentioned algorithm have been compared with obtained results using other intelligent methods such as particle swarm Optimization. The overall performance of this algorithm collates with early proven optimization methodology, Particle Swarm Optimization (PSO). The minimum cost for the generation of units is obtained for the standard bus system.
Volume: 8
Issue: 3
Page: 1297-1304
Publish at: 2018-06-01

1.5-V CMOS Current Multiplier/Divider

10.11591/ijece.v8i3.pp1478-1487
Jetsdaporn Satansup , Worapong Tangsrirat
A circuit technique for designing a compact low-voltage current-mode multiplier/divider circuit in CMOS technology is presented.  It is based on the use of a compact current quadratic cell able to operate at low supply voltage.  The proposed circuit is designed and simulated for implementing in TSMC 0.25-m CMOS technology with a single supply voltage of 1.5 V.  Simulation results using PSPICE, accurately agreement with theoretical ones, have been provided, and also demonstrate a maximum linearity error of 1.5%, a THD less than 2% at 100 MHz, a total power consumption of 508 W, and -3dB small-signal frequency of about 245 MHz.
Volume: 8
Issue: 3
Page: 1478-1487
Publish at: 2018-06-01

A Study of Thermal Behaviour of HTS Devices at Alternating Current

10.11591/ijece.v8i3.pp1389-1400
Vadim Z. Manusov , Dmitrij Olegovich Krjukov
The paper presents a study on thermal behavior of a coil made of a high-temperature supercon-ducting tape representing operation of a superconducting device (for example, a transformer). Based on the results of a physical experiment, a mathematical model of superconducting coil op-eration under short circuit conditions at the load side was developed. Regimes of overheating by variable short circuit currents were investigated. In this case, short circuit current amplitudes ex-ceeded a critical current of a superconductor, and coil parameters (e.g. an average nonlinearity parameter of a current-voltage characteristic, a superconductor length, and others) were varied. Permissible overheating for a coil with the possibility of its return into the superconducting state after emergency conditions in a dead-time period of automatic reclosing was considered. A crite-rion for return of a superconducting device into the superconducting state within a dead-time period of automatic reclosing has been obtained.
Volume: 8
Issue: 3
Page: 1389-1400
Publish at: 2018-06-01

Hybrid Speckle Noise Reduction Method for Abdominal Circumference Segmentation of Fetal Ultrasound Images

10.11591/ijece.v8i3.pp1747-1757
Fajar Astuti Hermawati , Handayani Tjandrasa , Nanik Suciati
Fetal biometric size such as abdominal circumference (AC) is used to predict fetal weight or gestational age in ultrasound images. The automatic biometric measurement can improve efficiency in the ultrasonography examination workflow. The unclear boundaries of the abdomen image and the speckle noise presence are the challenges for the automated AC measurement techniques. The main problem to improve the accuracy of the automatic AC segmentation is how to remove noise while retaining the boundary features of objects. In this paper, we proposed a hybrid ultrasound image denoising framework which was a combination of spatial-based filtering method and multiresolution based method.  In this technique, an ultrasound image was decomposed into subbands using wavelet transform. A thresholding technique and the anisotropic diffusion method were applied to the detail subbands, at the same time the bilateral filtering modified the approximation subband. The proposed denoising approach had the best performance in the edge preservation level and could improve the accuracy of the abdominal circumference segmentation.
Volume: 8
Issue: 3
Page: 1747-1757
Publish at: 2018-06-01
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