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  Subjects -> ENGINEERING (Total: 2549 journals)
    - CHEMICAL ENGINEERING (215 journals)
    - CIVIL ENGINEERING (221 journals)
    - ELECTRICAL ENGINEERING (127 journals)
    - ENGINEERING (1335 journals)
    - ENGINEERING MECHANICS AND MATERIALS (403 journals)
    - HYDRAULIC ENGINEERING (57 journals)
    - INDUSTRIAL ENGINEERING (87 journals)
    - MECHANICAL ENGINEERING (104 journals)

ELECTRICAL ENGINEERING (127 journals)                     

Showing 1 - 128 of 128 Journals sorted alphabetically
3C TIC     Open Access   (Followers: 3)
Acta Electronica Malaysia     Open Access  
Acta Universitatis Sapientiae Electrical and Mechanical Engineering     Open Access  
Actuators     Open Access   (Followers: 4)
Advances in Electrical and Electronic Engineering     Open Access   (Followers: 5)
Advances in Electrical Engineering     Open Access   (Followers: 35)
Advances in Microelectronic Engineering     Open Access   (Followers: 13)
Advances in Signal Processing     Open Access   (Followers: 13)
American Journal of Electrical and Electronic Engineering     Open Access   (Followers: 24)
American Journal of Sensor Technology     Open Access   (Followers: 4)
APSIPA Transactions on Signal and Information Processing     Open Access   (Followers: 9)
Archives of Control Sciences     Open Access   (Followers: 3)
Archives of Electrical Engineering     Open Access   (Followers: 13)
Atom Indonesia     Open Access   (Followers: 1)
Balkan Journal of Electrical and Computer Engineering     Open Access  
Bulletin of Electrical Engineering and Informatics     Open Access   (Followers: 8)
Case Studies in Mechanical Systems and Signal Processing     Open Access  
Circuits, Systems, and Signal Processing     Hybrid Journal   (Followers: 13)
Computers & Electrical Engineering     Hybrid Journal   (Followers: 9)
Current Trends in Signal Processing     Full-text available via subscription   (Followers: 5)
Edu Elektrika Journal     Open Access   (Followers: 1)
Electric Power Components and Systems     Hybrid Journal   (Followers: 8)
Electric Power Systems Research     Partially Free   (Followers: 19)
Electrica     Open Access  
Electrical and Electronic Engineering     Open Access   (Followers: 37)
Electrical and Power Engineering Frontier     Open Access   (Followers: 29)
Electrical Engineering     Hybrid Journal   (Followers: 21)
Electrical Engineering and Automation     Open Access   (Followers: 8)
Electrical Engineering and Power Engineering     Open Access  
Electrical Engineering in Japan     Hybrid Journal   (Followers: 8)
Electrical, Control and Communication Engineering     Open Access   (Followers: 13)
Elektron     Open Access  
Elkha : Jurnal Teknik Elektro     Open Access  
Emerging and Selected Topics in Circuits and Systems     Hybrid Journal   (Followers: 9)
ETRI Journal     Open Access  
EURASIP Journal on Advances in Signal Processing     Open Access   (Followers: 7)
Ferroelectrics     Hybrid Journal   (Followers: 1)
Ferroelectrics Letters Section     Hybrid Journal   (Followers: 1)
Frequenz     Hybrid Journal   (Followers: 1)
Frontiers of Electrical and Electronic Engineering     Hybrid Journal   (Followers: 8)
IEA Electricity Information     Full-text available via subscription   (Followers: 3)
IEEE Access     Open Access   (Followers: 99)
IEEE Electrical Insulation Magazine     Full-text available via subscription   (Followers: 53)
IEEE Signal Processing Magazine     Full-text available via subscription   (Followers: 80)
IEEE Transactions on Control of Network Systems     Hybrid Journal   (Followers: 18)
IEEE Transactions on Dielectrics and Electrical Insulation     Hybrid Journal   (Followers: 17)
IEEE Transactions on Signal and Information Processing over Networks     Full-text available via subscription   (Followers: 12)
IEEJ Transactions on Electrical and Electronic Engineering     Hybrid Journal   (Followers: 16)
IET Control Theory & Applications     Hybrid Journal   (Followers: 25)
IET Electric Power Applications     Hybrid Journal   (Followers: 35)
IET Electrical Systems in Transportation     Hybrid Journal   (Followers: 10)
IET Nanodielectrics     Open Access  
IET Smart Grid     Open Access  
IETE Journal of Education     Open Access   (Followers: 4)
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems)     Open Access   (Followers: 3)
InComTech : Jurnal Telekomunikasi dan Komputer     Open Access  
Indonesian Journal of Electrical Engineering and Computer Science     Open Access   (Followers: 16)
Ingeniería Electrónica, Automática y Comunicaciones     Open Access  
Integrated Ferroelectrics: An International Journal     Hybrid Journal  
International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems     Open Access   (Followers: 10)
International Journal of Electrical and Computer Engineering     Open Access   (Followers: 11)
International Journal of Electrical Engineering Education     Hybrid Journal   (Followers: 6)
International Journal of Electrical Power & Energy Systems     Open Access   (Followers: 26)
International Journal of Emerging Electric Power Systems     Hybrid Journal   (Followers: 7)
International Journal of Monitoring and Surveillance Technologies Research     Full-text available via subscription   (Followers: 4)
International Journal of Nano Devices, Sensors and Systems     Open Access   (Followers: 12)
International Journal of Nuclear Security     Open Access   (Followers: 1)
International Journal of Turbomachinery, Propulsion and Power     Open Access   (Followers: 8)
International Transaction of Electrical and Computer Engineers System     Open Access   (Followers: 2)
International Transactions on Electrical Energy Systems     Hybrid Journal   (Followers: 9)
Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki : Materials of Electronics Engineering     Full-text available via subscription  
J3eA     Open Access   (Followers: 2)
JAREE (Journal on Advanced Research in Electrical Engineering)     Open Access  
Journal of Control, Automation and Electrical Systems     Hybrid Journal   (Followers: 9)
Journal of Electrical and Computer Engineering     Open Access   (Followers: 9)
Journal of Electrical and Computer Engineering Innovations     Open Access   (Followers: 4)
Journal of Electrical and Electronics Engineering Research     Open Access   (Followers: 24)
Journal of Electrical Bioimpedance     Open Access   (Followers: 2)
Journal of Electrical Engineering     Open Access   (Followers: 32)
Journal of Electrical Engineering & Electronic Technology     Hybrid Journal   (Followers: 7)
Journal of Electrical Systems and Information Technology     Open Access   (Followers: 7)
Journal of Electrical, Electronics and Informatics     Open Access  
Journal of Field Robotics     Hybrid Journal   (Followers: 2)
Journal of International Council on Electrical Engineering     Open Access  
Journal of Micro-Bio Robotics     Hybrid Journal  
Journal of Microwaves, Optoelectronics and Electromagnetic Applications     Open Access   (Followers: 10)
Journal of Power Technologies     Open Access   (Followers: 7)
Journal of the Society for Information Display     Hybrid Journal  
Journal of World's Electrical Engineering and Technology     Open Access   (Followers: 2)
Journal of Zhejiang University SCIENCE C     Hybrid Journal  
JPhys Energy     Open Access  
JPhys Materials     Open Access  
Jurnal Ilmiah Mahasiswa SPEKTRUM     Open Access  
Jurnal Nasional Teknik Elektro     Open Access   (Followers: 4)
Jurnal Rekayasa Elektrika     Open Access  
Jurnal Teknik Elektro     Open Access  
Jurnal Teknik Elektro dan Komputer     Open Access  
Jurnal Teknologi Elektro     Open Access  
Kinetik : Game Technology, Information System, Computer Network, Computing, Electronics, and Control     Open Access  
Majalah Ilmiah Teknologi Elektro : Journal of Electrical Technology     Open Access   (Followers: 2)
Majlesi Journal of Electrical Engineering     Open Access   (Followers: 1)
Micro and Nano Systems Letters     Open Access   (Followers: 6)
Nanotechnology Development     Open Access   (Followers: 19)
npj Materials Degradation     Open Access  
Open Electrical & Electronic Engineering Journal     Open Access  
Periodica Polytechnica Electrical Engineering and Computer Science     Open Access  
Photovoltaics, IEEE Journal of     Hybrid Journal   (Followers: 16)
Quantum Beam Science     Open Access   (Followers: 1)
Recent Advances in Communications and Networking Technology     Hybrid Journal   (Followers: 3)
Recent Advances in Electrical & Electronic Engineering     Hybrid Journal   (Followers: 9)
Research & Reviews : Journal of Embedded System & Applications     Full-text available via subscription   (Followers: 5)
Russian Electrical Engineering     Hybrid Journal   (Followers: 4)
SID Symposium Digest of Technical Papers     Hybrid Journal  
Simetris : Jurnal Teknik Mesin, Elektro dan Ilmu Komputer     Open Access  
Sustainable Energy, Grids and Networks     Hybrid Journal   (Followers: 5)
Sustainable Energy, IEEE Transactions on     Hybrid Journal   (Followers: 16)
Synthesis Lectures on Electrical Engineering     Full-text available via subscription   (Followers: 2)
System analysis and applied information science     Open Access  
Telematique     Open Access  
The Scientific Bulletin of Electrical Engineering Faculty     Open Access  
Transactions of the International Society for Music Information Retrieval     Open Access  
Transactions on Environment and Electrical Engineering     Open Access  
Trends in Electrical Engineering     Full-text available via subscription   (Followers: 4)
Tri Dasa Mega : Jurnal Teknologi Reaktor Nuklir     Open Access  
Turkish Journal of Electrical Engineering and Computer Science     Open Access   (Followers: 2)
Universal Journal of Electrical and Electronic Engineering     Open Access   (Followers: 6)
Wireless Engineering and Technology     Open Access   (Followers: 4)
Електротехніка і Електромеханіка     Open Access  

           

Similar Journals
Journal Cover
Bulletin of Electrical Engineering and Informatics
Number of Followers: 8  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2089-3191 - ISSN (Online) 2302-9285
Published by Universitas Ahmad Dahlan Homepage  [18 journals]
  • Three Dimensional Frequency Selective Surface With Band-Reject Multiple
           Transmission Zero And Pseudo-Elliptic Response

    • Authors: Bimal Raj Dutta, Binod Kumar Kanaujia, Chhaya Dalela
      Abstract: The three-dimensional Frequency Selective Surface (3D FSS) with band reject multiple transmission zeros and pseudo-elliptic response is designed from two-dimensional (2D) periodic array of shielded micro strip lines to realize wide out-of –band radio wave rejection. This 3D FSS array consists of multimode cavities whose coupling with air can be controlled to obtain a desired frequency range. The proposed FSS with shorting via to ground exhibits pseudo-elliptic band-reject response in the frequency range from 6GHz to 14GHz. As the plane wave of linear polarization incidents perpendicularly to the shielded micro strip line with perfect electric conductor (PEC) and perfect magnetic conductor (PMC) boundary walls, two quasi-TEM modes are obtained known as air mode and substrate mode. The designed 3D FSS is a combination of two or more resonators. Furthermore, second 3D FSS design with three shorting via result more elliptic band reject frequency response and a pass band transmission pole. The in phase resonators of design give transmission poles and out of phase combination of resonators give transmission zeros respectively. The proposed 3D FSS is designed and simulated using Ansys HFSS software. The 3D FSS designs with wide out-of-band rejection and stable frequency response exhibit an improved performance over 2D FSS for many practical applications such as antenna sub-reflector, radomes and spatial filters.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • A Novel Bio-Inspired Routing Algorithm based on ACO for WSNs

    • Authors: Afsah Sharmin Sharmin, F. Anwar Anwar, S. M. A. Motakabber
      Abstract: The methods to achieve efficient routing in energy constrained wireless sensor networks (WSNs) is a fundamental issue in networking research. A novel approach of ant colony optimization (ACO) algorithm for discovering the optimum route for information transmission in the WSNs is proposed here for optimization and enhancement. The issue of path selection to reach the nodes and vital correspondence parameters, for example, the versatility of nodes, their constrained vitality, the node residual energy and route length are considered since the communications parameters and imperatives must be taken into account by the imperative systems that mediate in the correspondence procedure, and the focal points of the subterranean insect framework have been utilized furthermore. Utilizing the novel technique and considering both the node mobility and the existing energy of the nodes, an optimal route and best cost from the originating node to the target node can be detected. The proposed algorithm has been simulated and verified using MATLAB and the simulation results demonstrate that new ACO based algorithm achieved improved performance, about 30% improvement compared with the traditional ACO algorithm, and faster convergence to determine the best cost route, and recorded an improvement in the energy consumption of the nodes per transmission.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • A Miniaturized Hairpin Resonator for the High Selectivity of WLAN
           Bandwidth

    • Authors: S. M. Kayser Azam, Muhammad I. Ibrahimy, S. M. A. Motakabber, A. K. M. Zakir Hossain, Md. Shazzadul Islam
      Abstract: In this article, a miniaturized hairpin resonator has been presented to introduce the high selectivity of Wireless Local Area Network (WLAN) bandwidth. In the construction of the hairpin resonator, short-circuited comb-lines are electrically coupled with the two longer edges of a rectangular-shaped loop. The hairpin resonator has been designed and fabricated with the Taconic TLX-8 substrate with a center-frequency at 2.45 GHz. The resonator exhibits a second order quasi-Chebyshev bandpass response. A low insertion loss has been found as -0.36 dB with a minimum return loss as -36.71 dB. The filtering dimension of this hairpin resonator occupies a small area of 166.82 mm2. This hairpin resonator is highly selective for the bandpass applications of the entire WLAN bandwidth.

      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Investigation of Output Power in Ring CW Fiber Laser Using Graphene
           Saturable Absorber

    • Authors: Belal Ahmed Hamida Ahmed Hamida, Tawfig Eltaif, Farhan Daniel Bin Mohd Noh, Sheroz Khan Khan
      Abstract: This paper reported the effect of different coupling ratio in continuous wave fiber laser in a ring cavity configuration. Different coupling ratios of 10/90 and 50/50 were tested. Where the output power may vary depending on the ratio and it can be applied to specific area that requires either high or low output power. In addition, generation of passive Q-switched erbium doped fiber laser (EDFL) using graphene based saturable absorber in ring cavity using different coupling ratio was experimentally investigated. As a result wavelength centered at 1566.62nm is obtain from EDFL cavity. Moreover, the cavity using coupler of 50/50 is capable to achieve Q-switched pulses as compared to the cavity using coupler of 10/90. Where the maximum output power recorded is 336mW with pulse repetition rate of 23.74 kHz. In addition, the pulse width is 3.84µs, and pulse energy is 14.15nJ.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Application of Mobile Cloud Computing in Emergency Health Care

    • Authors: Shihab A. Hameed, Mohamed Hadi Habaebi, Alaa Haddad
      Abstract: Mobile applications in emergency health care help maintain patient confidentiality and manage patient records, data storage. Compiles and analyzes care of better quality care. new implementations come with new goals and technologies like using mobile application with cloud computing system and reducing the responding time to safe the patient life and give the patient best health care professional service transition to using of mobile application in emergency healthcare, this paper will present (MCCEH) mobile cloud computing in emergency health care model, mainly reducing the wasting time in emergency health care,The process starting once the accident occurred and the patient run the application, mobile application will detect the patient location and allow him to book nearest medical center or specialist in some emergency cases once the patient did the booking will send help request to medical center this process will include an online pre-register patient in the medical center to save time of patient registration, MCCEH model allows the patients to review the previous feedback and experiences of each specialist or medical center and allows doctors to be able to stay in contact with their patients more often and by communication through mobiles applications and share messages and photos of the accident or emergency case itself.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Design, Simulation and Practical Experimentation of Miniaturized Turbine
           Flow Sensor for Flow Meter Assessment

    • Authors: Salami Ifedapo Abdullahi, Mohamed Hadi Habaebi, Noreha Abd Malik
      Abstract: Flow sensors are very essential in many aspects of our daily lives. Many of the industrial processes need a very consistent flow sensor to monitor and check for irregularities in their system. Therefore, flow sensor is an important tool for advanced operation in industrial environment. In this paper, the design and development of a 3D fabricated flow sensor was carried out using SolidWork 3D CAD. SolidWork Flow Simulation was used to model the effect the turbine flow sensor would have on a constant flowing water while MATLAB Simulink flow graph was created to visualize the effect of turbine flow sensor response with voltage input. Afterwards, the design was 3D printed using UP Plus 2 3D printer. The experimentation involved selection of sensors, coding to control the turbine flow sensor and automatic data logging and storage. During the design phase, the sensors and actuators were assembled using locally sourced material. Subsequently, under controlled laboratory environment, the turbine flow sensor was tested using a DC motor which was programmed to control the revolution per minute(rpm) of the turbine flow sensor. The rpm and velocity of the turbine flow meter was measured and stored in a database via Microsoft Excel using Cool Term Software. A total number of 517 readings were analysed to evaluate the performance of the turbine flow sensor. The result shows that the turbine flow meter is responsive to the motor input voltage and yielded accurate measurement of rpm and velocity of turbine flow meter.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Dermatological Diagnosis By Mobile Application

    • Authors: Shihab A. Hameed, Alaa Haddad, Mohamed Hadi habaebi, Ali Nirabi
      Abstract: Health care mobile application delivers the right information at the right time and place to benefit patients clinicians and managers to make correct and accurate decisions in health care fields, safer care and less waste, errors, delays and duplicated errors. Lots of people have knowledge a skin illness at some point of their life, For the reason that skin is the body's major organ and it is quite exposed, significantly increasing its hazard of starting to be diseased or ruined. This paper aims to detect skin disease by mobile app using android platform providing valid trustworthy and useful dermatological information on over 4 skin diseases such as acne, psoriasis content for each skin condition, skin rush and Melanoma. it will include name, image, description, symptoms, treatment and prevention with support multi languages English and Bahasa and Mandarin. the application  has the ability to take and send video as well as normal and magnified photos to your dermatologist as an email attachment with comments on safe secure network, this app also has a built in protected privacy features to access to your photo and video dermatologists. the mobile application help in  diagnose and treat their patients without an office visit teledermatology is recognized by all major insurance companies doctor
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Pre-trained Based CNN Model to Identify Finger Vein

    • Authors: Subha Fairuz, Mohamed Hadi Habaebi, Elsheikh Mohamed Ahmed Elsheikh
      Abstract: In current biometric security systems using images for security authentication, finger vein-based systems are getting special attention in particular attributable to the facts such as insurance of data confidentiality and higher accuracy. Previous studies were mostly based on finger-print, palm vein etc. however, due to being more secure than fingerprint system and due to the fact that each person's finger vein is different from others finger vein are impossible to use to do forgery as veins reside under the skin. The system that we worked on functions by recognizing vein patterns from images of fingers which are captured using near Infrared(NIR) technology. Due to the lack of an available database, we created and used our own dataset which was pre-trained using transfer learning of AlexNet model and verification is done by applying correct as well as incorrect test images. The result of deep convolutional neural network (CNN) based several experimental results are shown with training accuracy, training loss, Receiver Operating Characteristic (ROC) Curve and Area Under the Curve (AUC).
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Design and Implementation of Visible Light Communication based Toys

    • Authors: Ain Najihah, Mohamed Hadi Habaebi, Farah Abdul Rahman Abdul Rahman
      Abstract: This paper aims to design a smart visible light communication based toy system equipped with laser sensors that can send and receive the data message based on the conversion of data from ASCII to binary code. The system intents to offer two-ways communication toys that will be a new medium for educational purposes for kids in their developmental stages in which both players can send and receive the data to and from each other and equipped with sound indicator module to alert the player. Lastly, functionality and system testing were conducted to verify the functionalities of the system.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Community Reporting System: Road Violation

    • Authors: M. R. Roslan, Suriza Ahmad Zabidi
      Abstract: In the era of internet and wireless, an online community reporting system that is easy to use and hustle free is much needed to allow the user to place a misconduct report to the relevant authority. The available system is inefficient and time-consuming since mostly are using web-based which makes the user unwilling to make a report to the authority. The objective of this project is to design a system using android application that is cost-effective and easy to use. The scope of this project is on the road violation reporting system. The outcome of the system will provide a user with an easy reporting system and also the authority can manage the report easily. The development of the system is expected to enhance the reporting system and betterment for the community as well as the authority as a whole.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Video Streaming Over Ad hoc On-demand Distance Vector Routing Protocol

    • Authors: Othman O. Khalifa, Diaa Eldin Mustafa Ahmed, Aisha Hassan Abdalla Hashim, Mudathir Yagoub
      Abstract: Video streaming is content sent in compressed form over the netwoks  and viwed the users progressively. The transmission of video with the end goal that it can be prepared as consistent and nonstop stream. The point is that to give client support to client at anyplace and at whatever time. Mobile Ad hoc Networks (MANETs) are considered an attractive nertwork for information transmission in many applications where the customer programme can begin showing the information before the whole record has been transmitted. Ad hoc On-demand Distance Vector (AODV) protocol is considered as one of the most important routing protocols in MANET. However, routing protocols assume a crucial part in transmission of information over the network. This paper investigates the performance of  AODV Routing Protocol under video traffic over PHY  IEEE 802.11g.  The protocol model was developed in OPNET. Different outcomes from simulation based models are analyzed and appropriate reasons are also discussed. A different scenarios of video streaming were used. The metric in terms of throughput, end to end delay, packet delivery ratio and routing overhead were measured. A comparision with GRP and GRP are also reported.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • On The Analysis of Received Signal Strength Indicator from ESP8266

    • Authors: Rafhanah Shazwani Rosli, Mohamed Hadi Habaebi, Md Rafiqul Islam
      Abstract: Recently, the concept o Internet of Things has gained a tremendous momentum in the technological world. Internet of Things efficienty connects devices hence improving their quality of life from various aspects. One of the most heavily used device for Internet of Things application is ESP8266 WiFi serial transceiver module. It features access to the Received Signal Strength Indicator readings from the module. In this paper, a characteristic analysis of the Received Signal Strength Indicator readings collected using ESP8266 WiFi serial transceiver module is carried out. The aim is to explore the future possibilities of Received Signal Strength Indicator value as a stand-alone and unique parameter to be used in various applications especially in the domain of Internet of Things. In addition, the potential of the cheap yet sophisticated ESP8266 WiFi serial transceiver module is also highlighted. The findings have shown an insight into the characteristics of Received Signal Strength Indicator readings and how it can be utilized for other different purposes. The findings have brought up a few stimulating issues that may arise from some implementation of Received Signal Strength Indicator readings such as the significant effect of obstruction in the Line of Sight. However, its solution will thrust the Internet of Things’ technological advancements ahead.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Investigation of Time Diversity Gain for Earth to Satellite Link Using
           Rain Rate Gain

    • Authors: Md Moktarul Alam, Islam Md. Rafiqu, Khairayu Badron, Farah Dyana A. R, Hassaan Dao, M. Rofiqul Hassan, Ali Kadhim Lwas
      Abstract: The utilization of satellites for communication systems has expanded considerably in recent years. C and Ku-bands of frequencies are already congested because of high demand. Future directions of satellite communications are moving towards Ka and V-bands. Earth to satellite communications are moving towards higher frequency bands in future which are more sensitive to environment. Rain causes severe degradation in performances at higher frequency bands specially in tropical regions. Several mitigation techniques are proposed to design reliable system. Time diversity is one of the potential candidate for it. However, time diversity analysis requires measured rain attenuation data. For future high frequency link design those data are not available at most of the places. This thesis proposes a method to utilize 1-minute rain rate to analyze time diversity technique at any desired frequency. This paper proposes a method to utilize 1-minute rain rate to analyse time diversity rain rate gain. In proposed method, it is assumed that rain rate gain with delay can represent rain attenuation gain with delay for same period of time at same location. The characteristics of rain rate and rain attenuation almost same because the attenuation causes due to rain.  One year measured rain rate in Malaysia is used to predict rain rate gain. The measured gain at 12.225 GHz signal is compared with that predicted by ITU-R based on rain rate measurement and is found good agreement. Hence it is recommended that the time diversity gain can be predicted using measured rain rate for any desired frequencies
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Modeling and Development of Radio Frequency Planar Interdigital Electrode
           Sensors

    • Authors: Muhammad Farhan Affendi bin Yunos, Anis Nurashikin Nordin, Sheroz Khan
      Abstract: The interdigital sensor has been implemented in various field of applications such as microwave device, chemical sensor and biological sensor. This work describes the design and fabrication of an interdigital sensor (IDS) design that has the potential of estimating blood glucose levels using capacitive measurements. The IDS was first designed using theoretical equations and later was optimized by using CST Microwave Studio®. The electrode widths of the sensor were varied from 0.5mm to 0.7mm and the S11 reflection characteristics were simulated.  Upon completion of simulations, the sensor was fabricated using copper clad FR4 boards. The fabricated sensors were measured using a vector network analyzer (VNA) and produced resonance frequencies of 2.02, 2.11 and 2.14 GHz. The highest Q obtained was 11.72 from the 2.11 GHz sensor.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Smartphone Aided Real-Time Blood Vein Detection System

    • Authors: Kazi Istiaque Ahmed, Mohamed Hadi Habaebi, Md Rafiqul Islam
      Abstract: This paper aims to develop a real-time integrated system for the detection of the blood vein utilizing an Android Mobile App. The system is intended to be a low cost solution for medical teams at clinics, emergency rooms and hosptials. The system reduces the enjuries incurred due to inaccuracies during the process of frequent needle injection when blood vein is not visible during patient’s skin inspection. Illuminated infrared light in the blood cells of the vein is absorbed due to the manifestation of the Haemoglobin in blood and the IR non-blocking camera can capture the vein patterns in the IR light spectrum. Contrast Limited Adaptive Histogram Equalization (CLAHE) algorithm was used to enhance the pattern of the vein in the Android application developed using OpenCV3. Developed system can detect the veins up to 7mm underneath of human skin in real time with a frame rate of 25fps. This is a far better improvement than commercial systems that can detect veins only below 10mm underneath the skin. Moreover, this system not only focused on needle infusion but also it can be used to indicate the place of bleeding for the clots from the human body strokes, etc. in the upper layer of skin. It can also be used to detect & measure liquids in encapsulated in confined dark bottles, for example, liquid chemical pouring into the bottles in the chemical companies, liquid medicine pouring to bottles, etc. The system can be further developed to detect skin infection and other dermatological diseases underneath the skin.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Design and Optimize Microstrip Patch Antenna Array using the Active
           Element Pattern Technique

    • Authors: Khamis Ali, Norun Abdul Malek, Ahmad Zamani Jusoh, Sarah Yasmin Mohamad, Zuhairiah Zainal Abidin, Ani Liza Asnawi
      Abstract: Microstrip patch antennas are widely used in modern day communication devices due to their light weight, low cost and ease of fabrication. In this paper, we have designed and fabricated two Microstrip Patch Antennas (slotted-ring and truncated-slotted ring) and array at 2.4 GHz for Wireless Local Area Network (WLAN) applications using Computer Simulation Technology, CST. The antenna design consists of rectangular radiating patch on Rogers RT5880 substrate and is excited by using coaxial probe feeding technique. The truncated-slotted ring has been designed on top of the radiating patch to improve bandwidth. The simulation and measurement results of the both antennas are in close agreement with each other. Due to the good agreement of simulation and measurement results of truncated-slotted ring antenna in comparison with slotted-ring antenna, it has been selected for antenna array design. The simulated and measured S11 of truncated-slotted ring antenna shows -21dB and -15.6 dB at 2.4 GHz respectively. Then, the antenna has been formed into 1x4 array in order to observe its beamforming capability. The proposed antenna array is suitable for 802.11b/g/n Wi-Fi standard which is proposed to be used for IoT.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Distinctive Features for Normal and Crackles Respiratory Sounds using
           Cepstral Coefficients

    • Authors: N. H. Mohd Johari, Abdul Malik, K. A. Sidek
      Abstract: Classification of respiratory sounds between normal and abnormal is very crucial for screening and diagnosis purposes. Lung associated diseases can be detected through this technique. With the advancement of computerized auscultation technology, the adventitious sounds such as crackles can be detected and therefore diagnostic test can be performed earlier. In this paper, Linear Predictive Cepstral Coefficient (LPCC) and Mel-frequency Cepstral Coefficient (MFCC) are used to extract features from normal and crackles respiratory sounds. By using statistical computation such as mean and standard deviation (SD) of cepstral based coefficients it can differentiate between crackles and normal sounds. The statistical computations of the cepstral coefficient of LPCC and MFCC show that the mean LPCC except for the third coefficient and first three statistical coefficient values of MFCC’s SD provide distinctive feature between normal and crackles respiratory sounds. Hence, LPCCs and MFCCs can be used as feature extraction method of respiratory sounds to classify between normal and crackles as screening and diagnostic tool.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Efficient 3D Stereo Vision Stabilization for Multi-camera Viewpoints

    • Authors: Sharif Shah Newaj Bhuiyan, Othman O. Khalifa
      Abstract: In this paper, an algorithm is developed in 3D Stereo vision to improve image stabilization process for multi-camera viewpoints. Finding accurate unique matching key-points using Harris Laplace corner detection method for different photometric changes and geometric transformation in images. Then improved the connectivity of correct matching pairs by minimizing the global error using spanning tree algorithm. Tree algorithm helps to stabilize randomly positioned camera viewpoints in linear order. The unique matching key-points will be calculated only once with our method. Then calculated planar transformation will be applied for real time video rendering. The proposed algorithm can process more than 200 camera viewpoints within two seconds.

      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Multiband Antenna using Stacked Series Array for Ka-Band Application

    • Authors: Rauful Nibir, Islam Md. Rafiqul, Mohamed Hadi Habaebi, Sarah Yasmin, Naimul Mukit, Sarah Rafiq, Abdinasir S. O
      Abstract: In this paper, a multiband stack series array antenna is designed in order to attain solutions for the future 28 GHz Ka-band application. Double layer substrate Technology is utilized to accomplish multiple resonant frequencies with higher data transfer capacities due to high bandwidth. The designed antenna is dependent on twofold layer consisting patches and resonators in different layers stacked together. The designed multiband antennas can resonate at single band of (28 GHz), dual band of (28 and 30 GHz) and triple band of (24.18, 26 and 28.453). The results achieved in the simulation are later fabricated and tested. The test result illustrates that the antennas have wide bandwidth, high gain and even higher efficiencies. All the proposed antenna configurations have demonstrated a decent possibility for 5G millimeter wave (mmwave) application
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Development of Web-based Surveillance System for Internet Of Things (IoT)
           Application

    • Authors: Siti Noorjannah Ibrahim, A. H. Hasan Basri, Ani Liza Asnawi
      Abstract: With the advancement of wireless technology, our dependency on smart system has increases to a higher level than before. Without doubt, integration between different technologies becomes inevitable in order create affordable surveillance system. This paper presents the development of with web-based surveillance system with a dedicated Android-based mobile application using a Raspberry Pi and its supporting components i.e., Pi-Camera, PIR motion sensor, Ultrasonic sensor, web-based & mobile application. The designed system also utilizes Node-Red development tools as the platform to integrate all components of the system, MQTT as the communication protocol for data acquisition and ThingSpeak as the middleware. The proposed system can be implemented over the internet using any computer and mobile devices, at anywhere and anytime. The system can automatically stream live video viewed from the Android mobile application and the Raspberry Pi device can send an alert notification to users via email and SMS. The system can be one possible features in smart home system and is considered as an affordable solution, customizable and easy to implement in comparison with other commercial surveillance system products such as CCTV or IP Camera
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Design and Parametric Evaluation of UWB Antenna for Array Arrangement

    • Authors: Faraz Ahmed Shaikh, Sheroz Khan, AHM Zahirul Alam, Dominique Baillargeat, Mohamed Hadi Habaebi, Mashkuri Bin Yaacob, Jawad Shah, Zeeshan Shahid
      Abstract: This paper has introduced the concept of UWB antenna in array arrangements.The four elements of Balance Antipodal Vivaldi Antenna (BAVA) has been used for planar and h-plane array configuration in this research. Each single element of BAVA Antenna is printed on the glass-reinforced epoxy laminate material (FR4) along an overall thickness of 1.57mm and εr = 4.3 respectively. The optimized measurement of each particular element is 60.75mm x 66mm approximatel.Further the parametric evaluation of four BAVA elements in different planes has been observed in this paper. The placement of array elements has almost coverd entire UWB frequency range and appropriate reflection coefficient which is better than -10dB has been established in both combinations.According to simulation results, the array elements in planar arrangement presenting a suitable reflection and works well at 3.2GHz frequency while the arrangement in h-plane the array elements works well at 7GHz of frequency. In planar arrangement, the operating frequency of antenna elements is shifting as results of the distance among inter elements which increase in wavelength. In h-plane arrangement an antenna elements generate additional gain up to 10.2 dB with good radiation patterns as compared to the planar plane. The CSTMWS simulation software has been used for antenna structural design and parametric verification.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Frequency Dependency Analysis for Differential Capacitive Sensor

    • Authors: Nurul Arfah Che Mustapha, A. H.M. Zahirul Alam, Sheroz Khan, Amelia Wong Azman
      Abstract: A differential capacitive sensing technique is discussed in this paper. The differential capacitive sensing circuit is making use of a single power supply. The design focus for this paper is on the excitation frequency dependency analysis to the circuit. Theory of the differential capacitive sensor under test is discussed and derivation is elaborated. Simulation results are shown and discussed. Next, results improvement has also been shown in this paper for comparison. Test was carried out using frequency from 40 kHz up to 400 kHz. Results have shown output voltage of Vout = 0.07927 Cx + 1.25205 and good linearity of R-squared value 0.99957 at 200 kHz. Potential application for this capacitive sensor is to be used for energy harvesting for its potential power supply.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Parasitic Consideration for Differential Capacitive Sensor

    • Authors: Nurul Arfah Che Mustapha, A. H.M. Zahirul Alam, Sheroz Khan, Amelia Wong Azman
      Abstract: Parasitic integration for a single supply differential capacitive sensing technique is presented in this paper. In real capacitive sensor measurement, parasitic impedance in its measurement. This paper objective is to study the effect of capacitive and resistive parasitic to the capacitive sensor circuit. The differential capacitive sensor circuit derivation theory is elaborated first. Then, comparison is made using simulation. Test was carried out using frequency from 40 kHz up to 400 kHz. Result is presented and have shown good linearity of 0.99984 at 300 kHz, R-squared value. This capacitive sensor is expected to be used for energy harvesting application.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Analysis of Airborne Dust Effects on Terrestrial Microwave Propagation in
           Arid Area

    • Authors: Elfaih A.A Elsheikh, Islam Md. Rafiqul, Mohamad Hadi Habaebi, Ahmad F. Ismail, Z. E. O. Elshaikh, F. M. Suliman, Jalel Chebil
      Abstract: Sand and dust storms are environmental phenomena ,during these storms optical visibility might be decreased, consequently, atmospheric attenuation is clearly noticed.  Micro-wave (MW) and Milimeter-wave (mm) propagation is severely affected by dust and sand storms in considerable areas around the world. Suspended dust particles may directly cause attenuation and cross polarization to the Electromagnetic waves propagating through the storm. In this paper, a thorough investigation of dust storm characteristics based on  measured optical visibility and relative humidity is presented. In addition,the dust storms effects of on Micro-wave and Millimeter-wave propagation have been studied based on data measured Received Signal levels (RSL)and dust storm characteristics synchronously. Analytical  dust  attenuation models predictions are matched to the measured attenuation data at 14 GHz and 21 GHz. It has been found that the measured attenuation is approximately ten times higher than the predicted attenuation for both frequencies.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Designing Large-Scale Antenna Array Using Sub-Array

    • Authors: Naimul Mukit, Islam Md. Rafiqul, AHM Zahirul Alam, Khaizuran Abdullah, Norun Farihah Abdul Malek, Rauful Nibir, Noor Hidayah M Adnan, Eid Osman
      Abstract: Antenna array of large scale have been examined for different applications including 5G technology. To get better data rate or a reliable link substantial number of antenna arrays have been utilized to provide high multiplexing gains as well as array gains with high directivity. In this paper a simple but efficient implementation technique of using sub-arrays for the improvement of large-sized uniform arrays. By repeating a small sub-array multiple times large arrays can be designed. This implication of utilizing small array simplifies the design of a larger array which allows the designer to concentrate on the smaller sub-array before assembling larger arrays. So, by investigating the sub arrays the performance and radiation characteristics of large arrays can be anticipated. The array-factor for a planar sub-array of 2x2 (4 elements) is analyzed using Mat-lab software and then a large array is formed by placing the 2x2 sub-array in  different configurations in a rectangular arrangements up to 8x8 planar array. And then the results are validated with CST (Computer simulation technology) simulation results. In this way the array-factors, directivities, HPBWs, and side lobes of the constructed large arrays are analyzed and associated with the small sub-array.
      PubDate: 2019-09-01
      Issue No: Vol. 8 (2019)
       
  • Analysis of Different Digital Filters for Received Signal Strength
           Indicator

    • Authors: Rafhanah Shazwani Rosli, Mohamed Hadi Habaebi, Md Rafiqul Islam
      Abstract: Due to high demand in Internet of Things applications, researchers are exploring deeper alternative methods to provide efficiency in terms of application, energy, and cost among other factors. A frequently used technique is the Received Signal Strength Indicator value for different Internet of Things applications. It is imperative to investigate the digital signal filter for the Received Signal Strength Indicator readings to interpret it into more reliable data. A contrasting analysis of three different types of digital filters is presented in this paper, namely: Simple Moving Average filter, Alpha Trimmed Mean filter and Kalman filter. There are three criteria used to observe the performance of these digital filters which are noise reduction, data proximity and delays. Based on the criteria, the choice of digital signal processing filter can be determined in accordance with its implementations in [ractice. For example, Alpha-Trimmed Mean filter is shown to be more efficient if used in the pre-processing of Received Signal Strength Indicator readings for physical intrusion detection due to its high data proximity. Hence, this paper illustrates the possibilities of the use of Received Signal Strength Indicator in different Internet of Things applications given a proper choice of digital signal processing filter
      PubDate: 2019-02-01
      Issue No: Vol. 8 (2019)
       
 
 
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