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30,907 Article Results

Views towards the revolution history course of foreign students in Turkey

10.11591/ijere.v8i1.14965
Zafer Tangülü , Beytullah Kaya
Studying history in accordance with gaining the legitimacy of the official ideology and reaching the historical bases that will open the way for the national identity for all teaching stages starting from primary education to tertiary education has made the national history subjects and naturally the topics of the Principles of Atatürk and History of the Turkish Revolution course both important and valuable. Although the teaching of Principles of Atatürk and History of the Turkish Revolution course has a role in the realization of national goals in higher education, the universal messages the program contains clearly demonstrate that the course has also a universal role beside the national identity of it. The purpose of this study is to investigate the opinions of foreign students studying in Turkey towards Principles of Atatürk and History of the Turkish Revolution course. To this end, this research is a case study in the qualitative research design. 12 foreign students studying at Istanbul Sebahattin Zaim University participated the study. The participants of the study were selected by purposive sampling method among criterion sampling methods. The criterion to pick these students was that they were accepted on the condition that they did Principles of Atatürk and History of the Turkish Revolution course for at least one semester at university. 6 female and 6 male students participated the study. Semi-structured interview form with 5 questions was prepared in order to determine the opinions of students participating in the research and content analysis was utilized to analyze the data obtained from the research and discourse analysis methods were employed to present the data. The opinions of the participants were transcribed and similar responses were categorized under certain headings. Research findings show that students are of the opinion that the course is very necessary for them and that it helps them to get scholar knowledge on Turkish history and it also helps them to get accurate history knowledge.
Volume: 8
Issue: 1
Page: 9-19
Publish at: 2019-03-01

Parameter estimation of DC motor through whale optimization algorithm

10.11591/ijpeds.v10.i1.pp83-92
Byamakesh Nayak , Sangeeta Sahu
This article estimates the unknown dc motor parameters by adapting the adaptive model with the reference model created by experimental data onto armature current and speed response from separately excited dc motor .The field flux dynamics, which is usually ignored, is included to model the dynamics of the motor. The block diagram including the flux dynamics and model parameters is considered as the adaptive model. The integral time square error between the instant experimental data and the corresponding adaptive model data is taken as cost function. The Whale optimization algorithm is used to minimize the cost function. Additionally, to improve the performances of optimization algorithm and for accurate result, the experimental data is divided into three intervals which form the three inequality constraints. A fixed penalty value is added to the cost function for violating these constraints. The effectiveness of estimation with two different methods is validated by convergence curve.
Volume: 10
Issue: 1
Page: 83-92
Publish at: 2019-03-01

Impact of annealing temperature to the performance of hematite based humidity sensor

10.11591/ijeecs.v13.i3.pp1079-1086
W.R.W. Ahmad , M.H. Mamat , Z. Khusaimi , A.S. Ismail , M. Rusop
In the present study, hematite (α-Fe2O3) nanorod structure were grown on fluorine doped tin oxide coated glass substrate via sonicated immersion approach with variation of annealing temperature (350˚C – 600˚C) in one-hour treatment. The impact of varying the temperature of annealing treatment on crystalline phase, structure morphology, optical properties and humidity sensing performance of hematite were examined. X-ray diffraction pattern disclosed a rhombohedral structure with α-phase diffraction peaks. The surface morphology images taken from field emission scanning electron microscopy revealed that the hematite nanorod arrays were grown uniformly in all samples and the average diameters of nanorods were measured in the ranges between 55 and 80 nm. Ultraviolet–visible spectroscopy measurement spectra show that all samples exhibited good optical properties. The hematite humidity sensor sample annealed at 400°C has demonstrated the highest sensitivity response (S=177.78) to humidity range between 40%RH to 90%RH.
Volume: 13
Issue: 3
Page: 1079-1086
Publish at: 2019-03-01

Design and implementation of laser based intelligent embedded dual modes cruise control system using FPGA

10.11591/ijeecs.v13.i3.pp1014-1021
HuiNee Ow , Muataz H. Salih , ChinBeng Lim
Cruise control system is also known as speed control which use to take over the car from the driver and stabilize the car with the speed had been set. It is one of the important elements in the intelligent vehicles. Currently, driver has to accelerate the car until certain speed in order to activate cruise control system. After it had been activated, driver still needs to put on attention to decelerate the car when there is another one in front and possibility to get accident is high. To overcome this problem and enhance current cruise system, this project has two laser-based working modes. First one is normal mode that following the same current cruise system procedure. Second is pre-set mode that allow driver to enter required speed without necessity to use petrol pedal. Both modes will use laser transceivers to add on perception feature to cruise control system. The system is designed and implemented using FPGA as main processing technology. Also, Quartus II 13.0 SP is used and DE0-Nano board is utilized as project platform. The input management is implemented to handle all sensors data and feed main processing unit with proper data stream. The result is efficient in term of system response, accurate cruise control and trustable design as well. The implement system is achieved up to 1.3GHz and 1,337 logic elements are consumed.
Volume: 13
Issue: 3
Page: 1014-1021
Publish at: 2019-03-01

Retinal blood vessel segmentation from retinal image using B-COSFIRE and adaptive thresholding

10.11591/ijeecs.v13.i3.pp1199-1207
Aziah Ali , Wan Mimi Diyana Wan Zaki , Aini Hussain
Segmentation of blood vessels (BVs) from retinal image is one of the important steps in developing a computer-assisted retinal diagnosis system and has been widely researched especially for implementing automatic BV segmentation methods. This paper proposes an improvement to an existing retinal BV (RBV) segmentation method by combining the trainable B-COSFIRE filter with adaptive thresholding methods. The proposed method can automatically configure its selectivity given a prototype pattern to be detected. Its segmentation performance is comparable to many published methods with the advantage of robustness against noise on retinal background. Instead of using grid search to find the optimal threshold value for a whole dataset, adaptive thresholding (AT) is used to determine the threshold for each retinal image. Two AT methods investigated in this study were ISODATA and Otsu’s method. The proposed method was validated using 40 images from two benchmark datasets for retinal BV segmentation validation, namely DRIVE and STARE. The validation results indicated that the segmentation performance of the proposed unsupervised method is comparable to the original B-COSFIRE method and other published methods, without requiring the availability of ground truth data for new dataset. The Sensitivity and Specificity values achieved for DRIVE and STARE are 0.7818, 0.9688, 0.7957 and 0.9648, respectively.
Volume: 13
Issue: 3
Page: 1199-1207
Publish at: 2019-03-01

The development of science process skills in visually impaired students: analysis of the activities

10.11591/ijere.v8i1.17427
Aydın Kızılaslan
Students with visual impairments face tremendous challenges in daily life while learning life skills as they do not have the benefit of visual cues. The skills that visually impaired students are expected to learn include not only everyday life skills, but also scientific process skills too. In this study, case study was used to develop an instructional design to teaching science concepts to visually impaired students. The aim of this study is to analyze the efficacy of science activities of this developed instructional design. The study consists of three basic stages. In the first stage, visually impaired students’ learning needs are identified. In the second stage teaching materials and activities are designed and developed. In the last stage, these activities were analyzed in terms of scientific process skills through observation forms. As a result, most of the developed activities are suited for development of the scientific process skills.
Volume: 8
Issue: 1
Page: 90-96
Publish at: 2019-03-01

Analysis of series/parallel multilevel inverter with symmetrical and asymmetrical configurations

10.11591/ijpeds.v10.i1.pp300-306
Motaparthi Nagaraju , Malligunta Kiran Kumar
Usage of high power and medium voltage applications in domestic and industrial purpose has been increased in the recent years. Also, the penetration of renewable energy sources is increasing rapidly. To make use the renewable energy sources there is a need of using inverters. The basic inverter is conventional two level inverter which produces the square wave output voltage. The major drawback of conventional inverter is it contains more harmonics. Therefore, multilevel inverters have been introduced with staircase output voltage waveform. Lot of multilevel inverter topologies have been developed and cascaded H bridge type is the more frequently used. But, it requires more number of switches for higher output voltage level. In this paper, a novel 7 level asymmetrical multilevel inverter topology is proposed with less number of switches. This proposed topology is compared with already existing topology. The simulation of circuit and result analysis of the circuit is carried out by using Matlab/simulink software. The comparison between existing topology and proposed topology is given. The results are discussed and presented.
Volume: 10
Issue: 1
Page: 300-306
Publish at: 2019-03-01

Leadership change design: a professional learning community (PLC) project in eastern Indonesia

10.11591/ijere.v8i1.15662
Teddy Trilaksono , Ambara Purusottama , Ifa Hanifah Misbach , Irfan Hary Prasetya
A professional learning community (PLC) is a long-term sustainable program that can replace professional development (PD) to enable teachers to become teacher leaders and school principals to become instructional leaders. Using a case study from the establishment of the PLC project in 10 schools of Eastern Indonesia (Saparua island, Maluku), this research develops a progressive leadership change model through an ADDIE instructional design that changes school leadership. The research aims to investigate how to identify the most effective leadership change model by exploring differrent forms of learning communities between school principals and teachers. Using an action research approach to solve the problem, the data were collected over a 10-month period when the PLC project activities took place and embedded them as empirical materials that complement each other. The findings show that the leadership change design through PLC runs effectively if value alignment occurs between school principals and teachers after the open environment is established. The data also highlight that aligned values must be embedded as school identities, whereas a school principal must act as a change leader in order to ensure that these changes are sustainable. This study concludes by proposing policy recommendations for policy makers and education stakeholders on how to develop PD and PLC in Indonesian schools.
Volume: 8
Issue: 1
Page: 47-56
Publish at: 2019-03-01

Conceptual mobility model of vertical handover decision in heterogeneous networks

10.11591/ijeecs.v13.i3.pp1143-1151
Norakmar Arbain , Zolidah Kasiran
In heterogeneous network, maintaining seamless connectivity needs excessive efforts from various aspects such as network availability and mobile node reliability. Presently, a vertical handover management is a practical approach in facilitating the service continuity for mobile users. Many researches have been conducted in this area by considering performance improvement in delay, latency, and overhead. Preserving the Quality of Services (QoS) based on user mobility and pattern movement during handover decision has become an important aspect in vertical handover management. This paper presents the conceptual mobility model of vertical handover decision in heterogeneous network. Hence, several researches in vertical handover decision management has been reviewed regarding the issues on the vertical handover decision algorithms such as RSS Based Algorithm, MADM Based Algorithm and Intelligence Based Algorithm.  This paper highlights the current decision algorithms that integrate the traditional methods with intelligence algorithm for better optimization. In decision parameters, the user mobility pattern can be importance in terms of direction randomness and mobility speed.  Hence, a conceptual mobility-awareness model for vertical handover are been proposed in targeting some improvement of handover performance.
Volume: 13
Issue: 3
Page: 1143-1151
Publish at: 2019-03-01

What are the dimensions of thinking skills in Turkish literature: a content analysis study?

10.11591/ijere.v8i1.17215
Yalçın Dilekli
New world needs thinking generation. However, growing thinking generation is very difficult because there are many discrepancies in defining of thinking and thinking skills. Without defining thinking and its dimensions, it is nearly impossible to grow such generation. For having thinking generation, thinking and its dimensions should be described. In the past 20 years, there have been many different definitions with regard to thinking and thinking skills. But, three different approaches for defining thinking skills and needed basic cognitive operations were commonly accepted. Aim of this study whether these three approaches for defining thinking skills were accepted in Turkish literature or not. For this aim, 14 studies, selected from Turkish database, related to thinking skills were analyzed. According the content analysis results, Turkish literature follows these three movements for defining thinking skills except for belonging to specific areas. 
Volume: 8
Issue: 1
Page: 110-118
Publish at: 2019-03-01

Management and archiving system for metal detection robot using wireless-based technology and online database registry

10.11591/ijpeds.v10.i1.pp219-229
Hakim Adil Kadhim , Nabeel Salih Ali , Dheyaa Mohammed Abdulsahib
The tremendous recent involvement of technology in our life generates a lot of advantages and disadvantages. Nevertheless, and to profoundly augment its positive influence, at the expense of the negatives, most technology be deployed to serve humanity and society. Researchers attractive in developing robust and cooperative robotics that capable of solving difficult tasks without any human control. Metal detector robot is one of the robotics principles due to its effectiveness as compared with manually operated and very slow traditional methods. In this article, three main points that are concentrated 1) Design a robot which is vehicle-mounted sensors that capable of carries the sensors of the metal and obstacle; 2) Control and management system wirelessly by a computer-based to command the robot functions by several sets of user’s rules and manage the robot instructions; and 3) Conduct an integrated system that achieving navigated data via metal detector based on online structured query language database registry. Also, discussed a comparison of the previous detector systems and highlights on several merits. The proposed system capable of fully control the robot also, set the robot operator permissions and rules, stored and archived the navigated results and printed reports and stored in an independent database.
Volume: 10
Issue: 1
Page: 219-229
Publish at: 2019-03-01

Differences in the impact of harmonic distortion due to the installation of electronic load controller in self-excited induction generator and synchronous generator

10.11591/ijpeds.v10.i1.pp104-116
Refdinal Nazir , Syafii Syafii , Andi Pawawoi , Fajril Akbar , Axel Doriza
In general, the application of Self-Excited Induction Generator (SEIG) or Synchronous Generator (SG) on the Stand-Alone Micro Hydel Power Plant (MHPP) is equipped with Electronic Load Controller (ELC) to control generator output during variations in consumer load. One type of ELC that is cheap and rigid developed today is the ELC, which is constructed by the uncontrolled bridge rectifier with DC Chopper. Based on the operational concept, basically this type of ELC can be implemented on both SEIG and SG, but both of these generators will have a different harmonic distortion effect on the output and its load. This paper examines the differences in the effects of harmonic distortions due to ELC installation on SEIG and SG. The initial stage of this study was to design the ELC developed. Then, the harmonic distortion response due to the installation of ELC on SEIG and SG is tested, which includes harmonic distortion in: stator current, PCC voltage, and consumer load current. THDI (Current Total Harmonic Distortion) stator current at SEIG with ELC has shown an average value smaller than the THD stator current in SG with ELC. Likewise, the THDV (Voltage Total Harmonic Distortion) value of PCC voltage and THDI value of the current consumer load on SEIG equipped with ELC has been shown to be smaller than the THDV value of PCC voltage and THDI value of the current consumer load on SG equipped with ELC. The effects of harmonic distortions due to the installation of ELCs that developed in this study on SEIG is still within the permitted limits, while on the SG, the harmonic distortion reduction is needed at the generator output.
Volume: 10
Issue: 1
Page: 104-116
Publish at: 2019-03-01

Development of preschool social emotional inventory for preschoolers: a preliminary study

10.11591/ijere.v8i1.17798
Goh Wah Im , Yeo Kee Jiar , Rohaya Bt. Talib
Social-emotional competencies have been established as important predictors in children’s mental health, school readiness and academic success. Age and developmentally appropriate screening for preschool children is important for early detection of developmental delays and early intervention. The purpose of this study is to measure preschool children’s social emotional competencies (SEC) based on the Malaysian context using the Preschool Social Emotional Competency Inventory (P-SECI) developed to provide parents, teachers and childcare professionals with a standardized, norm-referenced, reliable and valid instrument.  A pool of 50 items were created for P-SECI, representing eight clusters of social emotional competencies in children: self-awareness, social awareness, self-management, relationship management, attachment, communication, responsible decision making and pro-social skills. This pilot study involved two public Annex preschools in Johor Bahru, purposely selected with 49 preschool children as respondents. Results showed that P-SECI has a high reliability index (Alpha Cronbach-Teachers .98 and Parents .95). Initial findings also showed that Teachers and Parents differ in their evaluation of their children’s SEC according to age and gender. But for the age criteria, the mean difference is slightly wider in comparison to gender. Therefore, P-SECI is relevant in predicting children’s mental health, school readiness and academic achievement. Results from the study also showed that the inventory holds promise as a reliable and valid instrument to evaluate SEC in young children according to the Malaysian context.
Volume: 8
Issue: 1
Page: 158-164
Publish at: 2019-03-01

Intrinsic motivations for productive ageing

10.11591/ijeecs.v13.i3.pp1228-1236
Norisan Abd Karim , Haryani Haron , Natrah Abdullah , Wan Adilah Wan Adnan , Sharifah Muzlia Syed Mustafa
The involvement of the elderly in the activities is low compare to younger adult due to their frailty. This paper presents intrinsic motivations for productive ageing where it highlights the factors that motivate the elderly to participate in the activities. There are thirteen elderly respondents came from the people in the urban Klang Valley. The qualitative data analysis approach is used in this study. There are five intrinsic factors, which, consist of Autonomy, Competence, Relatedness, Curiosity and Altruism that motivate the participation of the elderly in volunteering, caregiving and self-development activities in this study. This research focuses on activities that resulted intrinsic values and not on monetary value like most of past researchers. Intrinsic motivation features are significant features in ICT as the identification of the ICT features is based on motivation to use the ICT.
Volume: 13
Issue: 3
Page: 1228-1236
Publish at: 2019-03-01

The presence and persistence of entrepreneurship education In Indonesia: a cross sectional study

10.11591/ijere.v8i1.16528
Ambara Purusottama , Teddy Trilaksono
This study aims to improve an understanding of the contribution of entrepreneurship education (EE) in Indonesia’s higher education. Even though the contribution of EE to global education is contested at the present time by many scholars, the evaluation of EE implementation in Indonesia is necessary in order to improve educated entrepreneurs. The study used a cross-sectional approach in the Universitas Prasetiya Mulya which is divided into the first, second, and third years. Valid questionnaire reached 924 respondents. The findings show that EE's contribution in Indonesia has more influence on attitudes and perceived behavioral control. However, other findings indicate that the contribution of EE is still not fully persistent due to a sharp decline in the regression coefficient, especially from subjective norm and perceived behavioral control in the students third year while attitude consistently contributes significant role and has an increasing contribution.
Volume: 8
Issue: 1
Page: 71-80
Publish at: 2019-03-01
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