scholarly journals Defining and Describing Human-Powered Products: Exploring Diverse Applications of Future Technology

2011 ◽  
Vol 486 ◽  
pp. 187-192
Author(s):  
Paul Johnson ◽  
Hyunjae Shin ◽  
Luke Harmer
Keyword(s):  
Power Systems ◽  
Real Time ◽  
Undergraduate Students ◽  
User Interaction ◽  
First Year ◽  
Future Technology ◽  
Human Power ◽  
Potential Applications ◽  
Interaction Map ◽  
Human Powered

The research has monitored both real time and concepts of human-powered products (HPP) ranging from conscious user interaction and fun concepts, to parasitic harvesting concepts. These ‘products’ have been characterised and mapped onto an ‘Interaction Map’ which is defined and described by two intersecting dimensions: one is defined by a sub/conscious user interaction and the other is defined by the mechanism of the product. This paper presents the results of a case study conducted with first year product design undergraduate students at Nottingham Trent University in January 2011. Students were briefed to select an electronic product and (re)design it into an interactive ‘off the grid product’, where its functional power is not being supplied by neither the power grid nor any kind of technology driven power units such as photovoltaic power cells. The results produced a comparative analysis, mapping student project concepts against results from real time HPP monitoring of existing products. Many HPP concepts arose from this study, and the design approach highlighted potential applications of human-power systems, more specific form of engineering requirements, as well as insight into further potential future technological approaches for HPP.

scholarly journals Real-Time Identification of Dynamic Events in Power Systems Using PMU Data, and Potential Applications—Models, Promises, and Challenges

2017 ◽  
Vol 32 (1) ◽  
pp. 294-301 ◽  
Author(s):  
S. Brahma ◽  
R. Kavasseri ◽  
H. Cao ◽  
N. R. Chaudhuri ◽  
T. Alexopoulos ◽  
...  
Keyword(s):  
Power Systems ◽  
Real Time ◽  
Dynamic Events ◽  
Potential Applications ◽  
Real Time Identification

scholarly journals Teaching Systemic Design in the Context of Organizational Communication

2015 ◽  
Vol 7 (3) ◽  
Author(s):  
Gordon Rowland
Keyword(s):  
Systems Thinking ◽  
Undergraduate Students ◽  
First Year ◽  
Senior Year ◽  
Communication Management ◽  
Capstone Course ◽  
Workplace Learning And Performance ◽  
Potential Applications ◽  
And Performance ◽  
Systemic Design

Courses emphasizing systemic design are taught in the Communication Management and Design program at Ithaca College for undergraduate students who seek to positively impact organizations and society through communication and learning. In a first-year course, students engage in a wide variety of learning activities and challenges through which they come to a basic understanding of systems thinking, design, and systemic design. This understanding creates a broad foundation for, and begins to develop connecting threads across, their studies of corporate communication, and workplace learning and performance. Then in their senior year capstone course students engage in a systemic design inquiry, which combines research and design in an attempt to address a critical current issue in organizations. Described here is the pedagogical approach for these courses, including underlying assumptions, links to strategy, and a rich set of concepts and tools that promote systems thinking in design, and which have potential applications beyond pedagogy. Also described is how these have all been informed by research. 

Recent Developments of Ambulatory Assessment Methods

2014 ◽  
Vol 25 (4) ◽  
pp. 279-287 ◽  
Author(s):  
Stefan Hey ◽  
Panagiota Anastasopoulou ◽  
André Bideaux ◽  
Wilhelm Stork
Keyword(s):  
Real Time ◽  
Information And Communication Technologies ◽  
New Technologies ◽  
Psychological Research ◽  
Ambulatory Assessment ◽  
Emotional States ◽  
Recent Developments ◽  
Potential Applications ◽  
Information And Communication ◽  
Physiological Sensors

Ambulatory assessment of emotional states as well as psychophysiological, cognitive and behavioral reactions constitutes an approach, which is increasingly being used in psychological research. Due to new developments in the field of information and communication technologies and an improved application of mobile physiological sensors, various new systems have been introduced. Methods of experience sampling allow to assess dynamic changes of subjective evaluations in real time and new sensor technologies permit a measurement of physiological responses. In addition, new technologies facilitate the interactive assessment of subjective, physiological, and behavioral data in real-time. Here, we describe these recent developments from the perspective of engineering science and discuss potential applications in the field of neuropsychology.

Using Mnemonics to Facilitate Learning of Japanese Script Characters

2004 ◽  
Vol 26 (1) ◽  
pp. 55 ◽  
Author(s):  
Emmanuel Manalo ◽  
Julie Trafford ◽  
Satomi Mizutani
Keyword(s):  
Undergraduate Students ◽  
Pass Rate ◽  
Japanese Language ◽  
First Year ◽  
Educational Setting ◽  
Alphabetic Language

Extra tutorial sessions on the use of pictorial mnemonics to facilitate memorization of Japanese hiragana and katakana script characters, as well as vocabulary words and kanji characters, were offered to university first year undergraduate students taking a beginners’ Japanese language course. 27 students, most of whom were experiencing some difficulties with the course, volunteered to attend. Although the improvement in actual marks that the students evidenced subsequent to attending the sessions did not prove to be statistically significant, a significant improvement in pass rate was found. Furthermore, the students rated the sessions highly in terms of their helpfulness, and the majority indicated that they believed the sessions helped their performance in the course assessments. It is concluded that mnemonic strategies can effectively be employed in facilitating retention of the script of a foreign, non-alphabetic language within a real educational setting. 初心者対象の日本語コースを取っている大学１年生に、日本語のひらがなとカタカナ、及び語彙と漢字の記憶を促進するため、絵を用いた連想法を使った追加授業が提出された。２７名（そのうちのほとんどは、コースにおいて何らかの困難に直面している）が自主的に追加授業に出席した。追加授業出席後、学生の実際の小テストの点の向上には有意差は認められなかったものの、合格率の向上においては有意差は確認された。さらに、追加授業に出席した学生は授業が役立ったと高く評価し、大多数が追加授業がコースの成績の成果に貢献したと思うと述べた。本論は、実際の教育現場で英語のアルファベットを用いない外国語の文字を教える際、連想法を効果的に使用することができると結論づけた。

scholarly journals Power Hardware-in-the-Loop-Based Performance Analysis of Different Converter Controllers for Fast Active Power Regulation in Low-Inertia Power Systems

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3274
Author(s):  
Jose Rueda Torres ◽  
Zameer Ahmad ◽  
Nidarshan Veera Kumar ◽  
Elyas Rakhshani ◽  
Ebrahim Adabi ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Power Systems ◽  
Real Time ◽  
Control Strategies ◽  
Active Power ◽  
Power Electronic ◽  
Hardware In The Loop ◽  
Digital Controllers ◽  
Power Regulation ◽  
The Impact

Future electrical power systems will be dominated by power electronic converters, which are deployed for the integration of renewable power plants, responsive demand, and different types of storage systems. The stability of such systems will strongly depend on the control strategies attached to the converters. In this context, laboratory-scale setups are becoming the key tools for prototyping and evaluating the performance and robustness of different converter technologies and control strategies. The performance evaluation of control strategies for dynamic frequency support using fast active power regulation (FAPR) requires the urgent development of a suitable power hardware-in-the-loop (PHIL) setup. In this paper, the most prominent emerging types of FAPR are selected and studied: droop-based FAPR, droop derivative-based FAPR, and virtual synchronous power (VSP)-based FAPR. A novel setup for PHIL-based performance evaluation of these strategies is proposed. The setup combines the advanced modeling and simulation functions of a real-time digital simulation platform (RTDS), an external programmable unit to implement the studied FAPR control strategies as digital controllers, and actual hardware. The hardware setup consists of a grid emulator to recreate the dynamic response as seen from the interface bus of the grid side converter of a power electronic-interfaced device (e.g., type-IV wind turbines), and a mockup voltage source converter (VSC, i.e., a device under test (DUT)). The DUT is virtually interfaced to one high-voltage bus of the electromagnetic transient (EMT) representation of a variant of the IEEE 9 bus test system, which has been modified to consider an operating condition with 52% of the total supply provided by wind power generation. The selected and programmed FAPR strategies are applied to the DUT, with the ultimate goal of ascertaining its feasibility and effectiveness with respect to the pure software-based EMT representation performed in real time. Particularly, the time-varying response of the active power injection by each FAPR control strategy and the impact on the instantaneous frequency excursions occurring in the frequency containment periods are analyzed. The performed tests show the degree of improvements on both the rate-of-change-of-frequency (RoCoF) and the maximum frequency excursion (e.g., nadir).

scholarly journals Online Learning Algorithms for the Real-Time Set-Point Tracking Problem

2021 ◽  
Vol 11 (14) ◽  
pp. 6620
Author(s):  
Arman Alahyari ◽  
David Pozo ◽  
Meisam Farrokhifar
Keyword(s):  
Decision Making ◽  
Power Systems ◽  
Real Time ◽  
Demand Response ◽  
Tracking Problem ◽  
Smart Meters ◽  
Set Point ◽  
Point Tracking ◽  
Power Set ◽  
Decision Making Framework

With the recent advent of technology within the smart grid, many conventional concepts of power systems have undergone drastic changes. Owing to technological developments, even small customers can monitor their energy consumption and schedule household applications with the utilization of smart meters and mobile devices. In this paper, we address the power set-point tracking problem for an aggregator that participates in a real-time ancillary program. Fast communication of data and control signal is possible, and the end-user side can exploit the provided signals through demand response programs benefiting both customers and the power grid. However, the existing optimization approaches rely on heavy computation and future parameter predictions, making them ineffective regarding real-time decision-making. As an alternative to the fixed control rules and offline optimization models, we propose the use of an online optimization decision-making framework for the power set-point tracking problem. For the introduced decision-making framework, two types of online algorithms are investigated with and without projections. The former is based on the standard online gradient descent (OGD) algorithm, while the latter is based on the Online Frank–Wolfe (OFW) algorithm. The results demonstrated that both algorithms could achieve sub-linear regret where the OGD approach reached approximately 2.4-times lower average losses. However, the OFW-based demand response algorithm performed up to twenty-nine percent faster when the number of loads increased for each round of optimization.

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