Articles

Access the latest knowledge in applied science, electrical engineering, computer science and information technology, education, and health.

Advanced Search
Filter Icon

Filters article

Years

FAQ Arrow
Single Year
Range Year
0
0

Source Title

FAQ Arrow

Authors

FAQ Arrow

29,082 Article Results

Image Reconstruction for Solid Profile Measurement in ERT using Non-invasive Approach

10.12928/telkomnika.v15i4.7234
Yasmin; Universiti Malaysia Pahang, Malaysia Abdul Wahab , Ruzairi; Universiti Teknologi Malaysia, Malaysia Abdul Rahim , Mohd; Universiti Malaysia Perlis, Malaysia Hafiz Fazalul Rahiman , Leow; Universiti Teknologi Malaysia, Malaysia Pei Ling , Suzanna; TATiUC, Malaysia Ridzuan Aw , Muhammad; Universiti Teknologi Malaysia,Malaysia Jayasuman Pusppanathan , Mohd; Universiti Tun Hussein Onn, Malaysia Fadzli Abd Shaib , Herlina; Universiti Teknologi Malaysia, Malaysia Abdul Rahim , Elmy; Universiti Tun Hussein Onn, Malaysia Johana Mohamad
Image reconstruction software and its image reconstruction algorithm are an important step towards constructing a tomography system. This paper demonstrates an image reconstruction of solid profile using linear back projection (LBP) algorithm and global threshold. A forward problem and inverse problem are discussed. The modelled of sensitivity distributions using COMSOL proved that the system is able to detect the liquid-solid regime in vertical pipe. Additionally, the location of the phantom can be easily distinguished using LBP algorithm and thresholding technique. The simulations and experiments results indicate that the sensitivity distribution of non-invasive ERT system can be applied in getting a tomogram of the medium of interest.
Volume: 15
Issue: 4
Page: 1554-1564
Publish at: 2017-11-01

Performance Enhancement of NEMO based VANET using Localization Router (LR) to reduce Handoff delays

10.11591/ijeecs.v8.i2.pp511-521
Shaikh Mohammad Ehsanur Rahman , Farhat Anwar , Aisha Hassan Abdalla Hashim
Vehicular Ad hoc networks (VANETs) combined with vehicle-to-vehicle and vehicle-to-infrastructure communications can be considered as the most suitable technology to enable ITS (Intelligent Transport System) application bestowed upon travellers with mobility, safety and productivity with human comfort. As a delay sensitive ITS application, handoff delays and packet losses are critical parameters for maintaining seamless connectivity in VANET solution. During handoff, when mobile node (vehicle) is acquiring new CoA (care of address), packets directed towards that node are lost; because it’s old identity is no more valid. So in high speed dynamic vehicular environment the number of frequent handoffs would produce delay beyond the normal limit. Therefore, it is very important to resolve the issues of handoff delay and packet losses in VANET environment. As a solution, a domain based RHD-NV (Reducing Handoff Delay in NEMO based VANET) scheme is proposed in this paper. Number of vehicles moving towards the road constructs a domain where network mobility NEMO-BS protocol is applied. A vehicle is selected as MR (master router) and connected to the RSU (road side unit) to the internet and other vehicles in the domain work as LRs (localization router) and communicate through MR. Simulation tests performed in NS3 (network simulator) and MATLAB SIMULINK demonstrate that using LRs (localization router) in the domain, the number of handoffs and handoff delay are significantly reduced.
Volume: 8
Issue: 2
Page: 511-521
Publish at: 2017-11-01

Integrated Engineering Project Management Approach for Typical Small to Medium Manufacturing Companies

10.11591/ijeecs.v8.i2.pp541-545
Erry Yulian Triblas Adesta , Mohammed Abdullah K B , Yahya A Alazemi
The aim of this paper is to identify the problem extents and successfully applying project management in SMEs with a focus on manufacturing industries. The organization of the study was mainly divided into the activity of literature study and the investigation through a survey conduct aimed to measure the awareness and implementation of project management at the selected SMEs in Malaysia. The questionnaire was designed with a section (Section A) involving project management in general and another section (Section B) involving the implementation of it. It was found that the level of awareness and implementation of project management especially in the selected small and medium manufacturing companies in Malaysia was quite satisfying. Most of the manufacturing companies were implementing project management, but the level was depending on the organization in the company itself. 
Volume: 8
Issue: 2
Page: 541-545
Publish at: 2017-11-01

Best Communication Node Election for well-organized Path in Flat Topology

10.11591/ijeecs.v8.i2.pp555-556
M. Nisha , S. Poongavanam
There has been an increasing attentiveness in the uses of sensor networks. Because sensors are normally controlled in on-board power supply, proficient supervision of the network is essential in improving the life of the sensor. The majority research protocols objective at offering link breakage reducing and mitigating from the same. Yet, selecting the well-organized communication do all the beneficial to the transmission process thus demonstrating better improvement in the network performance. In this article, we propose Best Communication Node Election for well-organized Path in Flat Topology The main goal of this work is to choose the best data transmission node in flat topology for improve the multi hop routing. This scheme, the best communication node selection based on Path Metric and this Path Metric is measured by the packet obtained rate, dropped rate, latency rate and node energy. This scheme provide guarantees quality of Service in the network.
Volume: 8
Issue: 2
Page: 555-556
Publish at: 2017-11-01

UWB Filtenna with Electronically Reconfigurable Band Notch using Defected Microstrip Structure

10.11591/ijeecs.v8.i2.pp302-307
Ammar Alhegazi , Zahriladha Zakaria , Noor Azwan Shairi , Tole Sutikno , Sharif Ahmed
A new design of filtenna with electronically reconfigurable band notch for ultra-wideband (UWB) applications is presented. The filtenna is designed based on modified monopole antenna integrated with resonant structure. To produce wider bandwidth with better return loss and higher frequency skirt selectivity, the monopole antenna is modified using microstrip transition in the feedline and block with a triangular-shape slot on each side of the circular patch. The resonant structure is about U-shaped slot defected on the feedline to achieve band notch characteristic. The position of the created band notch is controlled by optimizing the length of the U-shaped slot. By using a PIN diode switch inserted in the U-shaped slot to achieve reconfigurability feature. The experimental results show that the proposed design exhibits a wide bandwidth ranging from 3.0 to 14.0 GHz with reconfigurable band notch at 5.5 GHz (WLAN), and omnidirectional radiation pattern. Therefore, the proposed design is a good candidate for modern UWB applications.
Volume: 8
Issue: 2
Page: 302-307
Publish at: 2017-11-01

Availability of Network Improvement for Ship’s Optical Communication Range

10.11591/ijeecs.v8.i2.pp552-554
Ganesh Kumar , A. Arivazhagan Arivazhagan
Optical correspondence networks connecting ship’s system introduces the heuristic way to deal with accessibility investigation interfacing boat's frameworks. The availabilities of individual parts have been figured, as the reason for the whole framework accessibility assessment. A few system accessibility structures and assurance situations are exhibited and the accessibility assessed. In view of the examination, the likelihood for enhancing ship's correspondence framework accessibility has been proposed, adding to the general accessibility change of ship's frameworks.
Volume: 8
Issue: 2
Page: 552-554
Publish at: 2017-11-01

Stress Recognition Using Photoplethysmogram Signal

10.11591/ijeecs.v8.i2.pp495-501
Noor Hafizah Azlin Abd Halim , Khairul Azami Sidek , Hasmah Mansor
 This study proposed a novel method of stress recognition using photopletysmogram (PPG) signal. PPG devices are now widely used because it is convenient, low powered, cheap and also easy to handle due to its small size. A total of 5 subjects were involved in this study. The PPG signals were taken in resting condition using pulse oximetry. The subject then goes through a stressor test in order to record the physiological changes. The data were collected before and after the test was conducted and later extracted. These samples were then categorised using classification techniques to differentiate between normal and stress condition. Based on the experimentation results, the systolic peak value differences of normal and stress conditions are evident.Therefore, the outcome of this study suggest the reliability of implementing PPG signal for stress recognition.
Volume: 8
Issue: 2
Page: 495-501
Publish at: 2017-11-01

Development of Efficient Iris Identification Algorithm using Wavelet Packets for Smartphone Application

10.11591/ijeecs.v8.i2.pp450-456
Teddy Surya Gunawan , Nurul Shaieda Solihin , Malik Arman Morshidi , Mira Kartiwi
Nowadays, iris recognition is widely used for personal identification and verification based on biometrical technology, especially in the smartphone arena. By having this iris recognition for identification and verification, the smartphone will be secured since every person have their own iris type. In this paper, we proposed an efficient iris recognition using Wavelet Packets and Hamming distance which has lightweight computational requirements while maintaining the accuracy. There are several steps needed in order to recognize the iris which are pre-processing the iris image consists of segmentation and normalization, extract the feature that available in the iris image and identify this image to see whether it match with the person or not. For comparison purposes, different types of wavelet bases will be compared, including symlets, discrete meyer, biorthogonals, daubechies, and coiflets. Performance of the proposed algorithm was tested on Chinese Academy of Sciences Institute of Automation (CASIA) iris image database. The optimum wavelet basis function obtained is symlet. Results showed that the accuracy of the proposed algorithm is 100% identification rate.
Volume: 8
Issue: 2
Page: 450-456
Publish at: 2017-11-01

Hand Wrist Bone Identification Using Quadrant Ballon Snake

10.11591/ijeecs.v8.i2.pp335-342
Riyanto Sigit , Moch. Rochmad , Tri Harsono , Farah Devi Isnanda
In this research, hand wrist bone Identification for human forensic is discussed. Hand wrist bone is one of the effective methods used in the forensic science for age identification. There are four techniques used in this research: cropping image, preprocessing, Quadrant Ballon Snake and identification. The first step is to crop an image on metaphysis and epiphysis bone. The second step is preprocessing using morphology and edge detection. The third step is to apply Quadrant Ballon Snake to segment hand wrist bone. The last step is to use ratio metaphysis and epiphysis to identify a person. The performance segmentation for assessment hand wrist bone showed an average age identification 91%, bone age metaphysis 95% and bone age epiphysis 95%. The experiments resulted in the fact that Quadrant Ballon Snake method is able to find and improve the segmentation of hand wrist bone images accurately. This indicates that this method is effective for segmenting hand wrist bone.
Volume: 8
Issue: 2
Page: 335-342
Publish at: 2017-11-01

Automatic Cardiac Segmentation Using Triangle and Optical Flow

10.11591/ijeecs.v8.i2.pp315-326
Riyanto Sigit , Ali Ridho Barakbah , Indra Adji Sulistijono , Adam Shidqul Aziz
Cardiac function assessment plays an important role in daily cardiology and ultrasound. Full automatic cardiac segmentation is a challenging study because cardiac ultrasound imaging has low contrast and irregular moves. In this research, full automatic cardiac segmentation for cardiac diseases is presented. The technique used Initial Center Boundary, Pre-processing, Triangle Segmentation and Optical Flow. The first step is determining the initial center boundary. The second step is using Pre-processing to eliminate noise. The third step is Triangle Segmentation to detect cardiac boundary and reconstruct the accurate border. The last step is applying Optical Flow method to detect and track the border for every frame in a cardiac video. The performance segmentation for assessment errors cardiac cavity obtained an average triangle 8.18%, snake 19.94% and watershed 15.97%. The experiments showed that triangle method is able to find and improve the segmentation of cardiac cavity images with accurate. The result can be seen that error between system and average of users is only less than 5.6%. This indicates that this method is effective to segment and tracking cardiac cavity in a cardiac video.
Volume: 8
Issue: 2
Page: 315-326
Publish at: 2017-11-01

Enhanced Vein Detection from Video Sequences

10.11591/ijeecs.v8.i2.pp420-427
Kazi Istiaque Ahmed , Mohamed Hadi Habaebi , Md Rafiqul Islam
Nowadays, infusion of a needle is everyday common practice for the medical practitioner. A numerous fault occurs at the time of needle infusion into the blood vessel which is covered inside the human skin even though it is a simple and common practice in medical practitioning. This research proposes a computer-aided new technique using the vision-based imaging and Contrast Limited Adative Histogram Equalization (CLAHE) to detect and visualize the vein beneath a human's skin from video sequences which will be a really cost effective solution. IR night vision camera is being used to acquire the videos of an arm to compute the effect electromagnetic effect from NIR illumination which is absorbed by the hemoglobin of the blood vessel tissues. More precisely, its application can lead the process not only for error-free infusion of a needle to the patients but also localization of abdominal bleeding, stroke-inducing clots in the vein are the name of few. 
Volume: 8
Issue: 2
Page: 420-427
Publish at: 2017-11-01

Fingertip Detection Using Histogram of Gradients and Support Vector Machine

10.11591/ijeecs.v8.i2.pp482-486
Ali Sophian , Dayang Qurratu’aini
One important application in computer vision is detection of objects. One important application in computer vision is detection of objects. This paper discusses detection of fingertips by using Histogram of Gradients (HOG) as the feature descriptor and Support Vector Machines (SVM) as the classifier. The SVM is trained to produce a classifier that is able to distinguish whether an image contains a fingertip or not. A total of 4200 images were collected by using a commercial-grade webcam, consisting of 2100 fingertip images and 2100 non-fingertip images, were used in the experiment. Our work evaluates the performance of the fingertip detection and the effects of the cell’s size of the HOG and the number of the training data have been studied. It has been found that as expected, the performance of the detection is improved as the number of training data is increased. Additionally, it has also been observed that the 10 x 10 size gives the best results in terms of accuracy in the detection. The highest classification accuracy obtained was less than 90%, which is thought mainly due to the changing orientation of the fingertip and quality of the images. 
Volume: 8
Issue: 2
Page: 482-486
Publish at: 2017-11-01

Performance Study of Load Flow Algorithms in Well and Ill-Conditioned Systems

10.11591/ijeecs.v8.i2.pp414-419
Lea Tien Tay , Kai Seng Chieng
Existing transmission systems are classified as either ill systems or healthy systems. Most of the load flow algorithms works proficiently under well-conditioned systems. However, some of those algorithms fail to produce the accurate results for ill-conditioned systems. This paper investigates the performance of eight load flow algorithms based on the conventional Newton-Raphson, Fast-decoupled and Second-order Load Flow methods for a wide range of electrical bus system sizes. Tests are carried out for each load flow algorithm on six different standard bus systems, each with five different ill-conditioning levels. The results show that improved load flow model with constant Jacobian has advantages over the conventional load flow approach in both well and ill-conditioned system, especially for large-scale system.
Volume: 8
Issue: 2
Page: 414-419
Publish at: 2017-11-01

Online Marine Satellite System Using GIS

10.11591/ijeecs.v8.i2.pp571-573
Karpagavalli. S , V. Balamurugan
Geographic information Systems (GIS) square measure an honest tool for group action completely different form of spacial info. Its provides fast analysis and correlation of assorted geographical contexts. This method planned collects the data and integration marine data kind satellite pictures. This method automatic collects the surface location of the target. The system gets all info concerning another supply details, as well as ship movement from the automated Identification System (AIS).  The planned system creates upon immense years of expertise in style internet primarily based GIS. Internet GIS in on-line remote sensing services for ecological observation and system has solely been demo recently.
Volume: 8
Issue: 2
Page: 571-573
Publish at: 2017-11-01

Topologies of DC-DC Converter in Solar PV Applications

10.11591/ijeecs.v8.i2.pp368-374
Nor Hanisah Baharudin , Tunku Muhammad Nizar Tunku Mansur , Fairuz Abdul Hamid , Rosnazri Ali , Muhammad Irwanto Misrun
Solar energy plays an important role in renewable energy generation systems since it is clean, pollution-free sustainable energy as well as the increasing cost-of-electricity which causes high-growth demands amongst utility customers. This paper presents various circuit topologies of DC-DC converters in solar photovoltaic (PV) applications. There are three types of DC-DC converter presented in this paper that can be integrated with solar PV system which are buck, boost and buck-boost converter in various applications. This paper also presents the application on DC-DC converter in solar PV system for maximum power point tracking (MPPT) feature. The advantages and disadvantages of each topology will be discussed further in term of cost, components, efficiency and limitations.
Volume: 8
Issue: 2
Page: 368-374
Publish at: 2017-11-01
1 2 3
...
1938 1939
Show 1461 of 1939

Discover Our Library

Embark on a journey through our expansive collection of articles and let curiosity lead your path to innovation.

Explore Now
Library 3D Ilustration