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There are a number of factors that may affect the validity in measuring radiated emission test parameters in electromagnetic compatibility (EMC) testing. This research observes the effect of the placement of video pattern generator on the validity of measurement results of radiated emission parameter. The radiated emission measurement with the location of video pattern generator inside and outside...
This paper deals with design of Goubau PCB antenna as partial discharge (PD) detector. In the design, Goubau PCB antennas are simulated with a variety of shapes and sizes by using software for antenna design and simulation based on finite element method. The antennas are designed to achieve ultra wide band partial discharge frequency range. Goubau PCB antenna is designed with the type of substrate...
Outdoor Distribution Transformer is frequently used for 20 kV Medium Voltage Overhead Line. The main material for the isolator is the epoxy resin mixed with white cement (talk haichen). In outdoor use, resin epoxy material experiences isolation aging due to influences from various environment condition (pollutant and humidity). In this paper, results of partial discharge (PD) measurement testing of...
Rising cost pressure and increasing engineering efforts reach the automation departments of machinery and plant engineering industry, in this case the rolling mill manufacturer. A suitable way to overcome this challenges is to adapt concepts and procedures from the software engineering domain. To support this process, the authors present the requirements for the next generation automation solution...
For the 12-pulse rectifier system, a testing method of larger-power rectifier real-time loss (LRRL) is proposed in this paper. Firstly, the characteristics of valve side current and thyristor terminal voltage are researched and analyzed on basis of the measurement results. Then, a calculation method for LRRL can be presented according to the characteristics mentioned above. Finally, the practical...
We are currently engaged in a redesign of the method we use to distribute Engineering Teaching Kits (ETKs) via the Internet. This work in progress reports the results of the user-centered conceptual design phase of the project. ETKs are self-contained STEM education standards-based units that promote integrative learning about STEM via engineering design challenges. The current distribution method,...
In this paper, we try to recognize negative emotions (sadness and disgust) of human affecting driving by using physiological signals that are commonly used to deal with human emotions. To do this, emotional stimuli are used to induce sadness and disgust, and emotion recognition is performed based on the feature vector extracted from the physiological signals collected on the induced emotion by a stimulus...
This work-in-progress research study examines the response patterns of first-generation college students (FGCS) to the engineering identity measures compared to non-first-generation college students (non-FGCS). This work answers the following research question, “Do FGC and non-FGC engineering students interpret the engineering identity measurement items in a conceptually different manner?” We explore...
Massive Open Online Courses (MOOCs) focus on manifold subjects, ranging from social sciences over languages to technical skills, and use different means to train the respective skills. MOOCs that are teaching programming skills aim to incorporate practical exercises into the course corpus to give students the hands-on experience necessary for understanding and mastering programming. These exercises,...
A large number of testing procedures have been developed to ensure vehicle safety in common and extreme driving situations. However, these conventional testing procedures are insufficient for testing autonomous vehicles. They have to handle unexpected scenarios with the same or less risk a human driver would take. Currently, safety related systems are not adequately tested, e.g. in collision avoidance...
The purpose of this research is proposing a theory to verify the influence of virtual props trading sites to game loyalty of players. The objects of sampling aims at users who are actually engaged in online games props trading sites. A survey of 459 game players in Taiwan was conducted; research results were generated through the use of descriptive analysis, reliability analysis, correlation analysis,...
In this work-in-progress paper, we present a framework for developing an individual's capacity to engage in curricular culture change. It is part of a larger project that looks at curricular change through a cultural lens by analyzing cross-institutional curricular collaborations. An individual's capacity depends on three aspects: transferability (the presence of a testable hypothesis for transferring...
Teaching programming using Massive Open Online Courses (MOOCs) is gaining popularity due to their scalability and efficiency of knowledge distribution. However, participating in these courses usually means fully committing to the supplied programming environment in the browser. While this allows a consistent and controllable setup, learners do not gain experience with actual development tools, such...
The paper describes the dependence of the SEU cross-section on the clock frequency for a CMOS 0.18um microprocessor's test chip. An attempt has been made to find the relationship between the parameter of the minimum supply voltage and the frequency dependence of the SEU. Original experimental results are obtained.
The technique of flip-chip ICs SEE testing based on a joint use of focused laser facility and heavy ions with medium range of 100 μm … 200 μm is presented.
Nowadays, a clear trend of increase of system voltage to 800 kV AC and above can be observed in the world. This calls for the need of having test facilities to verify the fault current interruption performance of circuit breakers for such “super grids”. Standard synthetic test-methods for fault current interruption verification cannot be applied to circuit breakers of 800 kV and above, and alternative...
In this paper, a text independent speaker recognition system based on Gaussian mixture models (GMM) was developed with a specific focus on the use of a voice activated detector (VAD) algorithm in the training and testing. At the training level, a modified estimation/maximization (EM) algorithm is used. It is less prone to get trapped around a local maximum and so, it will have more chance to converge...
Teach students how to program is the main goal of most introductory CS courses. In fact, programming is one of the basic skills a professional in CS should have. However, there are many difficulties students face when they are learning how to program and, consequently, it is common introductory programming courses have high dropout rates. The purpose of this paper is to identify and discuss the most...
This paper investigates the effectiveness of including questions within instructional multimedia content to improve student performance on a related programming assignment. An experiment was conducted where one set of students was provided with an instructional video without any embedded questions and another set of students was provided the same video with embedded questions. The findings of this...
The threat of resource starvation attacks is one of the major problems for the e-Business. More recently these attacks became threats for Cloud environments and Denial of Service is a sub-category of these kinds of attack. The network management is process of taking proactive actions before the attack has taken effect which is responsibility of skilled employees — network managers. In recent time...
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