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How To Categorize Emotional Speech Signals With Respect To The Speaker's Degree Of Emotional Intensity, Salman Karimi, Mohammad Hossein Sedaaghi

Turkish Journal of Electrical Engineering and Computer Sciences

Recently, classifying different emotional content of speech signals automatically has become one of the most important comprehensive inquiries. The main subject in this field is related to the improvement of the correct classification rate (CCR) resulting from the proposed techniques. However, a literature review shows that there is no notable research on finding appropriate parameters that are related to the intensity of emotions. In this article, we investigate the proper features to be employed in the recognition of emotional speech utterances according to their intensities. In this manner, 4 emotional classes of the Berlin Emotional Speech database, happiness, anger, fear, …

Gender Classification: A Convolutional Neural Network Approach, Shan Sung Liew, Mohamed Khalil Hani, Syafeeza Ahmad Radzi, Rabia Bakhteri

Turkish Journal of Electrical Engineering and Computer Sciences

An approach using a convolutional neural network (CNN) is proposed for real-time gender classification based on facial images. The proposed CNN architecture exhibits a much reduced design complexity when compared with other CNN solutions applied in pattern recognition. The number of processing layers in the CNN is reduced to only four by fusing the convolutional and subsampling layers. Unlike in conventional CNNs, we replace the convolution operation with cross-correlation, hence reducing the computational load. The network is trained using a second-order backpropagation learning algorithm with annealed global learning rates. Performance evaluation of the proposed CNN solution is conducted on two …

Grid-Connected Induction Generator Interturn Fault Analysis Using A Pca-Ann-Based Algorithm, Haydar Bayar, Ümi̇t Kemaletti̇n Terzi̇

Turkish Journal of Electrical Engineering and Computer Sciences

It is difficult for short circuits among the internal windings of one phase in electrical machines to be determined in a reliable and speedy manner. The failure currents that occur, especially in short circuits with a few windings, are at such low levels that they cannot be determined by relay systems. This results in growing faults and damage. In this study, we designed a model that can define winding failures successfully at very small levels by using the PCA and ANN algorithms. We tested the real-time faults and measured the system performance with the installed test rig. The developed protection …

Upper Limb Rehabilitation Robot For Physical Therapy: Design, Control, And Testing, Erhan Akdoğan

Turkish Journal of Electrical Engineering and Computer Sciences

In recent years, the treatment process of patients and disabled people who need rehabilitation and physical medicine has become more effective with the use of new devices and developing technology. The rehabilitation robot is one of the most important developments in new technology. The right therapeutic exercises and the objectivity of the evaluation of the range of motion (ROM; generated torque and muscular activation measurement of the patient) are extremely important factors during treatment. In this study, a lower limb rehabilitation robot was modified and controlled for upper limbs. The retrofitted robot system is able to do passive, active, and …

Student-Centredness: Exploring The Culturally Appropriate Pedagogical Space In Vietnamese Higher Education Classrooms Using Activity Theory, Thanh Pham

Australian Journal of Teacher Education

Recently leaders in many Asian countries have advocated for student-centred reform agendas. However, bringing about pedagogical change is not simply a technical issue of implementing practices designed elsewhere but is a more substantive issue concerned with local cultural values and context. Researchers have claimed that to sustain the reform, the initiative needs to be modified integrating local values in a hybrid manner. The present study, involving two lecturers and 100 university students in Vietnam, used third generation of activity theory, to document how the lecturers created bridging and hybrid strategies that combined both traditional teaching practices and novel student-centred practices. …

Analysis Of Turkish Prospective Science Teachers’ Perceptions On Technology In Education, Mustafa Serdar Koksal, Suleyman Yaman, Yavuz Saka

Australian Journal of Teacher Education

Purpose of this study was to determine and analyze Turkish pre-service science teachers' perceptions on technology in terms of learning style, computer competency level, possession of a computer, and gender. The study involved 264 Turkish pre-service science teachers. Analyses were conducted through four-way ANOVA, t-tests, Mann Whitney U test and one-way ANOVAs and the results showed there were one main effect for gender and one interaction effect between gender and computer competency level. The interaction effect pointed out that the male pre-service science teachers who were weak in computer competency held more positive perceptions toward instructional technology than their counterparts.

Examination Of Learning Equity Among Prospective Science Teachers Who Are Concrete, Formal And Postformal Reasoners After An Argumentation-Based Inquiry Course, Ömer Acar, Bruce R. Patton

Australian Journal of Teacher Education

This study had two research purposes. First, we examined the scientific reasoning gains of prospective science teachers who are concrete, formal, and postformal reasoners in an argumentation-based physics inquiry instruction. Second, we sought conceptual knowledge and achievement gaps between these student groups before and after the instruction. Results were reported for 114 prospective science teachers. Results showed that concrete reasoners’ scientific reasoning gain was higher than those of formal and postformal reasoners. Moreover postformal reasoners outperformed formal and concrete reasoners on a situational conceptual knowledge subscale before and after instruction. In addition, postformal and formal reasoners scored higher than concrete …

The Use Of The Internet For English Language Teachers’ Professional Development In Arab Countries, Mohammad Madallh Alhabahba, Omer Hassan Ali Mahfoodh

Australian Journal of Teacher Education

This study investigated the relationship between English language teachers’ motives to use online teaching resources and three types of Internet practices: teachers’ practices in using the Internet to collaborate with others, teachers’ practices for classroom teaching, and the Internet’s contribution to the overall professional development of teachers. Gender was also used to assess differences in the proposed model. In this study, one hundred and seventy-four English language teachers completed an online survey. SmartPLS was used to assess the measurement and the structural models. The results indicated that participation was a significant determinant of both English language teachers’ Internet-related practices at …

Pre-Service Teachers And Climate Change: A Stalemate?, Helen J. Boon

Australian Journal of Teacher Education

Findings from the second phase of a study of pre-service teachers’ attitudes to environmental education and knowledge of climate change are reported in this paper. A sample of 87 pre-service teachers participated in a survey study in the last year of their Bachelor of Education degree to examine developments to their attitudes to environmental education and their knowledge of climate change as a result of training. Results showed their attitudes towards environmental education were consistently favourable, but their climate change science knowledge had not changed as a result of their participation in their degree. Data on preservice teachers’ sources of …

School-Based Youth Physical Activity Promotion: Thoughts And Beliefs Of Pre-Service Physical Education Teachers, Jerome N. Rachele, Thomas F. Cuddihy, Tracy L. Washington, Steven M. Mcphail

Australian Journal of Teacher Education

Physical education teachers are central to the facilitation of school-based physical activity promotion. However, teachers have self-reported a lack of knowledge, skills, understanding, and competence to successfully implement these strategies. The aim of this investigation was to explore the beliefs and perceptions of pre-service physical education teachers, concerning their potential roles in future school-based programs designed to promote student physical activity. Fifty-seven pre-service physical education teachers (21 males and 36 females) had complete data and were included in the analysis. Participants responded positively, and did not reveal concerns about their capacity to facilitate school-based physical activity promotion during practicum, and …

The Role Of Reflection And Collaboration In The Evolution Of A Group Of Novice Secondary Education Science Teachers, Josefa Cuesta, Pilar Azcárate, José Maria Cardeñoso

Australian Journal of Teacher Education

The present article analyses the changes in practices, ideas, and attitudes proposed by a group of novice science teachers during a further education teacher training program. The research on which it is based is focused on monitoring the training program and its impact on the participating teachers. The training program has as its starting point the practical problems teachers encounter, and is developed fundamentally through team work, debates, and reflection. The study demonstrates the suitability of these procedures to facilitate change and influence the professional development of these teachers.

Mindfulness-Based Approaches For Young People With Autism Spectrum Disorder And Their Caregivers: Do These Approaches Hold Benefits For Teachers?, Rebekah Keenan-Mount, Nicole J. Albrecht, Lea Waters

Australian Journal of Teacher Education

Parents and teachers who care for and educate young people with Autism Spectrum Disorder (ASD) face unique challenges associated with their roles. In this review we investigated the efficacy of mindfulness-based interventions in reducing stress and increasing positive behaviours in young people with ASD and their caregivers: parents and teachers. Nine studies on the topic were located, showing that the research base in this field is in the infancy stage. Each study illuminated the transformational change caregivers and young people experience after practicing mindfulness training (MT). The results also highlighted the interdependent relationship between the caregivers’ level of mindfulness and …

Physics Teachers’ Views On Their Initial Teacher Education, Isaac Buabeng, Lindsey Conner, David Winter

Australian Journal of Teacher Education

This paper explores New Zealand (NZ) physics teachers’ and physics educators’ views about Initial Teacher Education (ITE). Perspectives of physics teachers nationally indicated that in general, teachers considered themselves not well-prepared in some content areas including electronics, modern physics, and atomic and nuclear physics. This may be because in NZ, physics teachers have usually gained their content knowledge from an undergraduate science degree where they may have only taken one or two courses in physics. One year postgraduate teacher education programmes do not have sufficient time to cover the physics content taught in the final three years of schooling. The …

Comparison Between Primary Teacher Educators’ And Primary School Teachers’ Beliefs Of Primary Geography Education Quality, Gert Jan Bent, Anouke Bakx, Perry Den Brok

Australian Journal of Teacher Education

In this study teacher educators’ beliefs concerning primary geography education have been investigated and compared with primary school teachers’ beliefs. In this study 45 teacher educators and 489 primary school teachers completed a questionnaire, and nine teacher educators have been interviewed as well. It has been found that teacher educators are more critical about the quality of primary education than the primary school teachers themselves who are generally positive about the quality of primary geography. Teacher educators think that most primary school teachers are sufficiently competent to organise the more basic and simple geography lessons, but somehow lack the ability …

What Students Say About Homework – Views From A Secondary School Science Classroom In Trinidad And Tobago., Rawatee Maharaj-Sharma, Amrit Sharma

Australian Journal of Teacher Education

Students’ experiences with homework started the moment they enter the schooling system, yet very little is known about how students view homework. In this work, science students’ views of homework, and the factors or experiences that have influenced their views of homework are explored. The participants for this work were 34 secondary school science students in their fourth year of secondary schooling. A Likert-type questionnaire was used to gather data on students’ views about homework and a semi-structured interview was used to explore what experiences and/or factors have influenced their views. The results indicate that the majority of students perceived …

The Bridges And Barriers Model Of Support For High-Functioning Students With Asd In Mainstream Schools, Wendy Holcombe, Margaret Plunkett

Australian Journal of Teacher Education

National statistics indicate the ongoing challenge of catering for the unique needs of students with Autism Spectrum Disorder (ASD) within the context of inclusive education. Higher rates of difficulty and poorer outcomes are experienced by this cohort when compared to both the general population and others within the disability sector. The perspectives of educators from a variety of roles were examined to identify factors impacting upon the educational experience of high-functioning students with ASD to determine how they could be supported more effectively. Findings indicate despite extensive educational experience and considerable knowledge of ASD, many educators lack an understanding of …

The Elephant In The (Class)Room: Parental Perceptions Of Lgbtq-Inclusivity In K-12 Educational Contexts, Jacqueline Ullman, Tania Ferfolja

Australian Journal of Teacher Education

While little is known about parental beliefs and desires regarding LGBTQ-inclusive education, assumptions about these appear to justify teachers’, curriculum writers’ and policy makers’ silences regarding sexuality and gender diversity in the K-12 classroom. Thus, in order to better inform educators’ practices, this paper presents an analysis of interview data from focus groups with parents from across the Australian state of New South Wales. Findings highlight parents’ desires for LGBTQ-inclusivity, not only as a protective factor for sexuality and gender diverse students, but also to engender social cohesion and prepare all students for adult life in the modern social landscape. …

Historical Trends And Emerging Issues In Teacher Education Programs In The United States, Karl M. Lorenz

Education Faculty Publications

US national and state educational polices are advocating for more teacher accountability with respect to student performance, and accrediting agencies are requiring more evidence of teachers’ mastery of subject area knowledge and professional skills. This paper examines some of the significant educational and social issues currently facing basic education and teacher preparation programs in the United States. It addresses numerous topics and focuses on five general issues that confront K-12 education and either directly or indirectly Teacher Preparation Programs.

Las políticas educativas nacionales y estatales de Estados Unidos están abogando por una mayor responsabilidad de los maestros con respecto al …

Innovation Heuristics: Experiments On Sequential Creativity In Intellectual Property, Stefan Bechtold, Christopher Buccafusco, Christopher Jon Sprigman

Articles

All creativity and innovation build on existing ideas. Authors and inventors copy, adapt, improve, interpret, and refine the ideas that have come before them. The central task of intellectual property (IP) law is regulating this sequential innovation to ensure that initial creators and subsequent creators receive the appropriate sets of incentives. Although many scholars have applied the tools of economic analysis to consider whether IP law is successful in encouraging cumulative innovation, that work has rested on a set of untested assumptions about creators’ behavior. This Article reports four novel creativity experiments that begin to test those assumptions. In particular, …

Applying Metaheuristic Optimization Methods To Design Novel Adaptive Pi-Type Fuzzy Logic Controllers For Load-Frequency Control In A Large-Scale Power Grid, Thimaiphuong Dao, Yaonan Wang, Ngockhoat Nguyen

Turkish Journal of Electrical Engineering and Computer Sciences

Due to the complexity and diversity of large-scale power systems in practice, designing load-frequency control (LFC) strategies against load variations faces big challenges to ensure the stability and economy of the network. The focus of this paper is to design a novel adaptive PI-type fuzzy logic (FL)-based LFC architecture for solving the LFC problem in such an interconnected electric power grid. Applying 2 biologically inspired optimization methods, namely particle swarm optimization method and a genetic algorithm, the membership functions and rule base of a basic PI-type FL model were parameterized and optimized simultaneously and successfully. An online self-tuning method was …

Speech Recognition Using Ann And Predator-Influenced Civilized Swarm Optimization Algorithm, Teena Mittal, Rajendra Kumar Sharma

Turkish Journal of Electrical Engineering and Computer Sciences

This paper proposes a hybrid optimization technique, predator-influenced civilized swarm optimization, by integrating civilized swarm optimization (CSO) and predator-prey optimization (PPO) techniques. CSO is the integration of the attributes of particle swarm optimization and a society civilization algorithm (SCA). In the SCA, the swarm is divided into a few societies, and each society has its own society leader (SL); other individuals of the society are termed society members. The combination of all such societies forms a civilization, and the best-performing SL becomes the civilization leader (CL). In CSO, SLs and members update their positions through the guidance of their own …

High-Order Uniformly Convergent Method For Nonlinear Singularly Perturbed Delay Differential Equations With Small Shifts, Abdelhay Salama, Dirhem Al-Amery

Turkish Journal of Mathematics

In this paper, we propose and analyze a high-order uniform method for solving boundary value problems (BVPs) for singularly perturbed nonlinear delay differential equations with small shifts (delay and advance). Such types of BVPs play an important role in the modeling of various real life phenomena, such as the variational problem in control theory and in the determination of the expected time for the generation of action potentials in nerve cells. To obtain parameter-uniform convergence, the present method is constructed on a piecewise-uniform Shishkin mesh. The error estimate is discussed and it is shown that the method is uniformly convergent …

An Investigation Of Intelligent Controllers Based On Fuzzy Logic And Artificial Neural Network For Power System Frequency Maintenance, Ngockhoat Nguyen, Qi Huang, Thi-Mai-Phuong Dao

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

On The Nphss-Kpik Iteration Method For Low-Rank Complex Sylvester Equations Arising From Time-Periodic Fractional Diffusion Equations, Min-Li Zeng, Guo-Feng Zhang

Turkish Journal of Mathematics

Based on the Hermitian and skew-Hermitian (HS) splitting for non-Hermitian matrices, a nonalternating preconditioned Hermitian and skew-Hermitian splitting-Krylov plus inverted Krylov subspace (NPHSS-KPIK) iteration method for solving a class of large and low-rank complex Sylvester equations arising from the two-dimensional time-periodic fractional diffusion problem is established. The local convergence condition is proposed and the optimal parameter is given. Numerical experiments are used to show the efficiency of the NPHSS-KPIK iteration method for solving the Sylvester equations arising from the time-periodic fractional diffusion equations.

A Novel Approach For Automatic Blood Vessel Extraction In Retinal Images: Complex Ripplet-I Transform And Complex Valued Artificial Neural Network, Murat Ceylan, Hüseyi̇n Yaşar

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

Bbo Algorithm-Based Tuning Of Pid Controller For Speed Control Of Synchronous Machine, Gowrishankar Kasilingam, Jagadeesh Pasupuleti

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

Behavior Of Metamaterial-Based Microwave Components For Sensing And Heating Of Nanoliter-Scale Volumes, Muhammed Sai̇d Boybay

Turkish Journal of Electrical Engineering and Computer Sciences

Metamaterial-based microwave components are among the state-of-the-art heater and sensor designs for microfluidic systems. The miniaturization and energy-focusing abilities of the metamaterial-based components make it possible to adopt microwave components operating at wavelengths in the order of 10 cm for microfluidic systems. Microwave systems are particularly advantageous for point-of-care and high-throughput applications due to their high speed of operation, very low instrumentation cost, ability to selectively and internally heat specimens, and ability of label-free sensing. In this study, the efficiency and behavior of microwave components designed for heating and sensing small volumes in the scale of nanoliters are studied. In …

Reduction Of Torque Ripple In Induction Motor By Artificial Neural Multinetworks, Fati̇h Korkmaz, İsmai̇l Topaloğlu, Hayati̇ Mamur, Murat Ari, İlhan Tarimer

Turkish Journal of Electrical Engineering and Computer Sciences

Direct torque control is used in the high performance control of induction motors. The most frequently faced problem of it is high torque ripples. In this study, a new approach based on artificial neural multinetworks is presented to overcome the problem. Two different artificial neural networks were suggested instead of vector selection and sector determination processes in the conventional direct torque control method. The conventional and the proposed control methods were evaluated on an induction motor through an experimental set. It was observed that the speed and torque responses of the proposed method were better than those of the conventional …

A Simple Hybrid Method For Segmenting Vessel Structures In Retinal Fundus Images, Cemal Köse

Turkish Journal of Electrical Engineering and Computer Sciences

In this paper, a simple, fast, and efficient hybrid segmentation method is presented for extracting vessel structures in retinal fundus images. Basically, this hybrid approach combines circular and naive Bayes classifiers to extract blood vessels in retinal fundus images. The circular method samples pixels along the enlarging circles centered at the current pixel and classifies the current pixel as vessel or nonvessel. An elimination technique is then employed to eliminate the nonvessel fragments from the processed image. The naive Bayes method as a supervised technique uses a very small set of features to segment retinal vessels in retinal images. The …

Quadraticeigenparameter-Dependent Quantum Difference Equations, Yelda Aygar Küçükevci̇li̇oğlu

Turkish Journal of Mathematics

The main aim of this paper is to construct quantum extension of the discrete Sturm--Liouville equation consisting of second-order difference equation and boundary conditions that depend on a quadratic eigenvalue parameter. We consider a boundary value problem (BVP) consisting of a second-order quantum difference equation and boundary conditions that depend on the quadratic eigenvalue parameter. We present a condition that guarantees that this BVP has a finite number of eigenvalues and spectral singularities with finite multiplicities.