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

30,547 Article Results

The condition monitoring of diesel engines using acoustic signal analysis

10.11591/ijeecs.v13.i1.pp179-185
Widi Prasetyo , Mudrik Alaydrus
Engine have become one of the supportive asset for many activity and work, therefore engine need attention for its condition. The easiest way to do is through the acoustic sound of the engine itself. Most of the time, the engine sounds are checked using a traditional way that may causing a debate regarding its condition. This is due to no supportive scientific basis to know about engine condition using their own acoustic sound. A value from its frequency pattern is needed as scientific basis to determine an engine condition using acoustic sound. Method of envelope extraction by hilbert transform, fast fourier transform, and correlation coefficient are used to find that value. A series of tests have been carried out on the values that have been found and the result are promising for telling engine condition, but unfortunately the values has not been able to identify type of damage that occur on the engine.
Volume: 13
Issue: 1
Page: 179-185
Publish at: 2019-01-01

Colored object detection using 5 dof robot arm based adaptive neuro-fuzzy method

10.11591/ijeecs.v13.i1.pp293-299
Mujiarto Mujiarto , Asari Djohar , Mumu Komaro , Mohamad Afendee Mohamed , Darmawan Setia Rahayu , W. S. Mada Sanjaya , Mustafa Mamat , Aceng Sambas , Subiyanto Subiyanto
In this paper, an Adaptive Neuro Fuzzy Inference System (ANFIS) based on Arduino microcontroller is applied to the dynamic model of 5 DoF Robot Arm presented. MATLAB is used to detect colored objects based on image processing. Adaptive Neuro Fuzzy Inference System (ANFIS) method is a method for controlling robotic arm based on color detection of camera object and inverse kinematic model of trained data. Finally, the ANFIS algorithm is implemented in the robot arm to select objects and pick up red objects with good accuracy.
Volume: 13
Issue: 1
Page: 293-299
Publish at: 2019-01-01

The patterns of accessing learning management system among students

10.11591/ijeecs.v13.i1.pp15-21
Akibu Mahmoud Abdullahi , Mokhairi Makhtar , Suhailan Safie
Learning Management System (LMS) is an online software that was hosted on a server and designed specifically to manage learners’ information, course registration, learning content, and assessment tool. Educational data mining is a way of evaluating and using methods for examining the unique and large dataset that come from educational field, and applying those in order to understand how students learn and the settings in which they learn. Many students use to miss some of the activities posted by their instructors, due to the short deadline, and they are not accessing the LMS regularly or every day. The purpose of this paper is to explore the way on how student access LMS and which day is the most frequent accessed. The findings show that, the total number of accessing LMS among 33 students is 16060, and the mean is 486.67, S16 recorded the highest number of accessing the LMS (965 access), while S24 as the least number of access (275). And the correlation between Tuesdays is significant, positive and strong correlation with Wednesdays (0.546), and positive, but weak with Thursdays (0.292), Fridays (0.244), Saturdays (0.334), and Sundays (0.291).
Volume: 13
Issue: 1
Page: 15-21
Publish at: 2019-01-01

Analysis on swarm robot coordination using fuzzy logic

10.11591/ijeecs.v13.i1.pp48-57
Ade Silvia Handayani , Siti Nurmaini , Irsyadi Yani , Nyayu Latifah Husni
In this paper, coordination among individual of swarm robot in communicating to maintain the safe distance between robots was analyzed.  Each robot coordinates their movements to avoid obstacles and moving simultaneously. Evaluation of swarm robot performance is analyzed in this paper, namely: the coordination among robots to share information in safe distance determination.  In controlling the coordination of motion, each robot has a sensor that provides several inputs about its surrounding environment. Fuzzy logic control in this paper allows uncertain input, and produces unlimited commands to control motion direction with speed settings according to environmental conditions. In this experiment, it is obtained that the size of the environment affects the coordination of robots.
Volume: 13
Issue: 1
Page: 48-57
Publish at: 2019-01-01

An ant colony algorithm for universiti sultan zainal abidin examination timetabling problem

10.11591/ijeecs.v13.i1.pp191-198
Ahmad Firdaus Khair , Mokhairi Makhtar , Munirah Mazlan , Mohamad Afendee Mohamed , Mohd Nordin Abdul Rahman
The real-life construction of examination timetabling problem is considered as a common problem that always encountered and experienced in educational institution whether in school, college, and university. This problem is usually experienced by the academic management department where they have trouble to handle complexity for assign examination into a suitable timeslot manually. In this paper, an algorithm approach of ant colony optimisation (ACO) is presented to find an effective solution for dealing with Universiti Sultan Zainal Abidin (UniSZA) examination timetabling problems. A combination of heuristic with ACO algorithm contributes the development solution in order to simplify and optimize the pheromone occurrence of matrix updates which include the constraints problem. The implementation of real dataset instances from academic management is applied to the approach for generating the result of examination timetable. The result and performance that obtained will be used for further use to evaluate the quality and observe the solution whether our examination timetabling system is reliable and efficient than the manual management that can deal the constraints problem.
Volume: 13
Issue: 1
Page: 191-198
Publish at: 2019-01-01

A framework implementation of surveillance tracking system based on PIR motion sensors

10.11591/ijeecs.v13.i1.pp235-242
Bashar Alathari , Mohammed Falih Kadhim , Salam Al-Khammasi , Nabeel Salih Ali
A motion tracking system made from affordable hardware components is implemented to be used inside the University of Kufa (UoK) buildings to track and detect any suspicious activities. The current research objectives are to automatically monitor, track intruders using sensors, servo, and camera that occurs around the system using Arduino microcontroller. The mounted camera track, capture the moving object and sending a live broadcast to a receiving host which could be a desktop computer, laptop, tablet or a smartphone. In this study, we consider the problem of automated position estimation using the electronic circuit of inexpensive binary motion sensors. We present simulation and experiments with Passive Infrared (PIR) motion sensors that suggest our current estimator. Fritzing software simulator is used to test and draw the circuits of the system. The proposed design worked efficiently during the experiments and shown high performance with 360 degrees of detection for the sensing environments.
Volume: 13
Issue: 1
Page: 235-242
Publish at: 2019-01-01

Enhancement gain of broadband elliptical microstrip patch array antenna with mutual coupling for wireless communication

10.11591/ijeecs.v13.i1.pp217-225
Ali Khalid Jassim , Raad H. Thaher
The paper is presented analysis, design and manufacturing single optimize parameters of a new broadband elliptical patch antenna with microstrip center feed line and the array has been implemented to improve gain antenna. The antenna array dimension of mm3 and fabricated on an FR-4 epoxy substrate having relative dielectric constant =4.3, loss tangent tan (δ) =0.002 and the feed line used has characteristic impedance of 50Ω and added the triangle notch structure .Thus notch can achieve maximal additional enhancement impedance bandwidth are (3.679- 6.578) GHz, (13.84-25.142) GHz, (29.807-37.618) GHz and the gain 8dBi. The antenna array performance was modified by inserting stubs transition in feeding Microstrip line to reducing mutual coupling achieve impedance bandwidth (when S11-10dB). The modified antenna was designed to be used for wireless communication application. The simulation results are obtained using CST software.
Volume: 13
Issue: 1
Page: 217-225
Publish at: 2019-01-01

A smart monitoring and controlling for agricultural pumps using LoRa IOT technology

10.11591/ijeecs.v13.i1.pp286-292
Aktham Hasan Ali , Raad Farhood Chisab , Mohannad Jabbar Mnati
Controlling electrical pumps on farms can be problematic, especially if there are a small number of people managing or working on huge areas of land and if the provision of electricity is not consistent. Therefore, further techniques for the management of plant irrigation on this type of land are being invented to make the process of irrigation easier. In this paper, a new intelligent device is designed and utilized to control the operation of irrigation pumps using a robust method of communication to transfer information at long distances, for the lowest cost, and the longest battery life. This technology is called LoRa (Long Range) communication, which is a low-power technology. The unit consists of two circuits: the first one is for switching the pumps ON and OFF, while the second one controls and monitoring the work of the pumps. Monitoring of the pumps can also be carried out through smart phones by measuring the voltage. The most important features of this new design are its intelligent control for long distances, cheap price, and a long operational life of more than five years. The goal of this paper is to help farmers by designing and manufacturing a remote-control system that switches irrigation pumps on and off using LoRa technologies.
Volume: 13
Issue: 1
Page: 286-292
Publish at: 2019-01-01

A novel configuration of THz photonic transmitter

10.11591/ijeecs.v13.i1.pp258-264
Ibtissame Moumane , Jamal Zbitou , M. Latrach , A. Errkik , O. Chakkor
In this paper we present a new design of a photonic transmitter based on multi-layers substrate GaAs and using for generation of THz waves. The proposed circuit is composed from a photodetector (PD) “which converts the light to the electrical signal”, THz Antenna, low-pass filter and DC probe. Firstly we have optimized the THz antenna using an EM solver which is Momentum integrated in ADS “Advanced Design System”.Then we have optimized the low pass filter which plays the role of inductance that is an RF choke permiting to separate the RF signal from the DC one. Finally, we have associated the different components, add the DC probe and simulate the whole proposed system. The dimensions of the final circuit are 400.317x167.16 UM2 . The obtain results permit to validate the final circuit at THz and make it suitable for THz applications.
Volume: 13
Issue: 1
Page: 258-264
Publish at: 2019-01-01

Automated parking management system for identifying vehicle number plate

10.11591/ijeecs.v13.i1.pp77-84
Asha Singh , Prasanth Vaidya
By using image processing, the Automated parking management system (APMS) to recognize the license plate number for efficient management of vehicle parking and vehicle billing. It is an independent real-time system, reduces number of people involvement in parking areas. The main aim of this system is to automated payment collection. This (APMS) system extract and recognize license plate numbers from the vehicles, then that image is being processed and used to generate an electronic bill. Generally in the parking lots heavy labor work is needed. This system used to decrease the cost of the labor and also enhance the performance of the APMS. This system is composed of vehicles license plate number extraction, character segmentation and character recognition. A proper pre-processing is done before extracting the license plate and it also generates the entry time and exit time of the vehicle and finally generates the electronic bill.
Volume: 13
Issue: 1
Page: 77-84
Publish at: 2019-01-01

Survey on underwater optical wireless communication: perspectives and challenges

10.11591/ijeecs.v13.i1.pp138-146
Tejaswini R Murgod , S Meenakshi Sundaram
The demand for underwater communication is growing at a faster pace since few decades. Maximizing the communication performance and building efficient network architecture for underwater communication is a challenging task. Due to the reduced bandwidth, high error rate, noise, propagation delay, water currents and increased cost in the network topology, the existing communication techniques are not feasible for underwater communication. Research in high speed underwater transmission technology has become a primary need in today’s world. By using underwater acoustic sensor network high transmission distance can be achieved but with lower data rates, high power consumption, larger delays and with higher cost. Underwater Optical Communication can be used to increase data rates and lower delays but it suffers from high attenuation due to which it cannot be used for data transfer over larger distances. Research in the area of hybrid sensor networks is a challenging task and has many open research challenges, which needs to be solved. In this paper we discuss the various architectures of underwater communication. A comparative study is made on different routing protocols and localization algorithms. The challenges faced by acoustic and optical communication are also discussed.
Volume: 13
Issue: 1
Page: 138-146
Publish at: 2019-01-01

Application of virtual windows to determine the path of a uniformly moving obstacle

10.11591/ijeecs.v13.i1.pp94-101
Mohd. Uzir Kamaluddin , Hj. M.A. Hj. Mansor
Two virtual windows are used to determine the path of a single uniformly moving obstacle. If the path of the obstacle crosses the two virtual windows, then its path can be easily determined. A simulation is implemented to ascertain the viability and accuracy of this technique. 
Volume: 13
Issue: 1
Page: 94-101
Publish at: 2019-01-01

Design and analysis of PM motor with semi-circle stator design using 2D-finite element analysis

10.11591/ijeecs.v13.i1.pp427-436
Mohd Luqman M. J , Tan Cheng Kwang , Auzani Jidin
This paper presents a basic approach to reduce an overall weight of selected PM motor. The approach is not based on normal sizing step by keeping the overall design in symmetry dimension, but by introducing semi-circle stator design. The investigation takes 12-slot/10-pole motor as a subject due to it symmetric winding disposition. Two designs are included, both having identical semi-circle stator but different in rotor configuration. Design 1 has a standard rotor design that equipped with 10-pole while Design 2 has a semi-circle rotor design following the stator design. This inherently result an even number of pole i.e. 5. From the investigation using 2D-Finite Element Analysis, an overall weight in PM motor can be theoretically reduced by having asymmetric design dimension. However, motor torque performance would deteriorate and unwanted noise may exist due to high cogging torque and high output torque ripple. A proper design procedure that includes parameter optimization and intelligent switching for optimum current excitation is required to restore the desired torque.
Volume: 13
Issue: 1
Page: 427-436
Publish at: 2019-01-01

The usability analysis of using augmented reality for linus students

10.11591/ijeecs.v13.i1.pp58-64
Kamariah Awang , Syadiah Nor Wan Shamsuddin , Ismahafezi Ismail , Norkhairani Abdul Rawi , Maizan Mat Amin
Mobile technology with Augmented Reality has become popular worldwide with a broad range of users, including students from all levels of education and the impact of mobile technology in classrooms has been extensively studied. This technology can be the source of motivation for LINUS students especially students with disabilities. The word usability also refers to the methods to improve the ease of use during a design process. Among the difficulties in teaching a LINUS student is the lack of visual media for understanding the subject especially in basic mathematics such as evaluating a number and calculating the number. The objective of the study was to evaluate the usability of using Augmented Reality in a mobile application among LINUS students in primary schools. This study used survey data gathered from 32 LINUS students of 3 different primary schools in Marang and Kuala Terengganu Districts. The questionnaire collected data on five construct of usability test to the LINUS students. The students used the mobile application while being guide by their teacher. They navigated all the buttons provided and answered the quiz too. The criteria of usability test consist of five constructs. The students showed a significant interest in learning numbers by actively participating in the LINUS sessions. The usability level was measured based on the five constructs. In summary, the augmented reality mobile application has a great potential to be used in teaching and learning, as in the Malaysia Education Development Plan 2013-2025 especially on the LINUS students.
Volume: 13
Issue: 1
Page: 58-64
Publish at: 2019-01-01

Gazing as actual parameter for drowsiness assessment in driving simulators

10.11591/ijeecs.v13.i1.pp170-178
Arthur Mourits Rumagit , Izzat Aulia Akbar , Mitaku Utsunomiya , Takamasa Morie , Tomohiko Igasaki
Many traffic accidents are due to drowsy driving. However, to date, only a few studies have been conducted on the gazing properties related to drowsiness. This study was conducted with the objective of estimating the relationship between gazing properties and drowsiness in three facial expression evaluation (FEE) categories: alert (FEE = 0), lightly drowsy (FEE = 1−2), heavily drowsy (FEE = 3−4). Drowsiness was investigated based on these eye-gazing properties by analyzing the gazing signal utilizing an eye gaze tracker and FEE in a driving simulator environment. The results obtained indicate that gazing properties have significant differences among the three drowsiness conditions, with p < 0.001 in a Kruskal–Wallis test. Furthermore, the overall classification accuracy of the three drowsiness conditions based on gazing properties using a support vector machine was 76.3%. This indicates that our proposed gazing properties can be used to quantitatively assess drowsiness.
Volume: 13
Issue: 1
Page: 170-178
Publish at: 2019-01-01
1 2 3
...
2036 2037
Show 1396 of 2037

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