Flexible, low-cost and scalable, nanostructured conductive paper-based, efficient hygroelectric generator

2021 ◽  
Author(s):  
Kelly S. Moreira ◽  
Diana Lermen ◽  
Leandra P. dos Santos ◽  
Fernando Galembeck ◽  
Thiago A. L. Burgo
Keyword(s):  
Real World ◽  
Energy Efficient ◽  
Low Cost ◽  
Electrical Energy ◽  
Conductive Paper ◽  
Real World Applications

Converting humidity into useful electrical energy was only recently demonstrated and the improvements presented in this work are not only highly energy efficient, but also contributes to the development of scalable, real-world applications.

scholarly journals Integrated Outreach: Increasing Engagement in Computer Science and Cybersecurity

2020 ◽  
Vol 10 (12) ◽  
pp. 353
Author(s):  
Shaya Wolf ◽  
Andrea Carneal Burrows ◽  
Mike Borowczak ◽  
Mason Johnson ◽  
Rafer Cooley ◽  
...  
Keyword(s):  
Computer Science ◽  
Real World ◽  
Learning Experience ◽  
Low Cost ◽  
Outreach Programs ◽  
Integrated Stem ◽  
Hands On ◽  
Real World Applications ◽  
Before And After ◽  
Interest Level

Research on innovative, integrated outreach programs guided three separate week-long outreach camps held across two summers (2018 and 2019). These camps introduced computer science through real-world applications and hands-on activities, each dealing with cybersecurity principles. The camps utilized low-cost hardware and free software to provide a total of 84 students (aged 10 to 18 years) a unique learning experience. Based on feedback from the 2018 camp, a new pre/post survey was developed to assess changes in participant knowledge and interest. Student participants in the 2019 iteration showed drastic changes in their cybersecurity content recall (33% pre vs. 96% post), cybersecurity concept identification within real-world scenarios, and exhibited an increased ability to recognize potential cybersecurity threats in their every-day lives (22% pre vs. 69% post). Finally, students’ self-reported interest-level before and after the camp show a positive increase across all student participants, with the number of students who where highly interested in cybersecurity more than doubling from 31% pre-camp to 65% post-camp. Implications for educators are large as these activities and experiences can be interwoven into traditional schooling as well as less formal camps as pure computer science or through integrated STEM.

Transition Metal Based Magneto Caloric Materials for Energy Efficient Heat Pumps

2016 ◽  
Vol 257 ◽  
pp. 129-134 ◽  
Author(s):  
Ekkes Brück ◽  
Hargen Yibole ◽  
Van Thang Nguyen ◽  
Xue Fei Miao ◽  
Maurits Boeije ◽  
...  
Keyword(s):  
Transition Metal ◽  
Real World ◽  
Energy Efficient ◽  
Room Temperature ◽  
Heat Pumps ◽  
Environmentally Benign ◽  
Ferromagnetic Transition ◽  
Metal Compounds ◽  
Real World Applications ◽  
Cooling Technology

Magnetic refrigeration near room temperature is considered as an environmentally benign alternative for the current compressor-based cooling technology. Two materials that are based on ferromagnetic transition metal compounds are considered as the most promising candidates to be used in real world applications. Here we discuss the main features of these materials.

scholarly journals Threads and or-parallelism unified

2010 ◽  
Vol 10 (4-6) ◽  
pp. 417-432 ◽  
Author(s):  
VíTOR SANTOS COSTA ◽  
INÊS DUTRA ◽  
RICARDO ROCHA
Keyword(s):  
Full Advantage ◽  
Data Structures ◽  
Real World ◽  
State Of The Art ◽  
Low Cost ◽  
Good Alternative ◽  
Parallel Execution ◽  
New Approach ◽  
Real World Applications ◽  
Execution Environment

AbstractOne of the main advantages of Logic Programming (LP) is that it provides an excellent framework for the parallel execution of programs. In this work we investigate novel techniques to efficiently exploit parallelism from real-world applications in low cost multi-core architectures. To achieve these goals, we revive and redesign the YapOr system to exploit or-parallelism based on a multi-threaded implementation. Our new approach takes full advantage of the state-of-the-art fast and optimized YAP Prolog engine and shares the underlying execution environment, scheduler and most of the data structures used to support YapOr's model. Initial experiments with our new approach consistently achieve almost linear speedups for most of the applications, proving itself as a good alternative for exploiting implicit parallelism in the currently available low cost multi-core architectures.

scholarly journals Efficiency Analysis of SMA-Based Actuators: Possibilities of Configuration according to’ the Application

Actuators ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 63
Author(s):  
Janeth Arias Guadalupe ◽  
Dorin Copaci ◽  
David Serrano del Cerro ◽  
Luis Moreno ◽  
Dolores Blanco
Keyword(s):  
Energy Efficient ◽  
Complete System ◽  
Low Cost ◽  
Electrical Energy ◽  
Position Error ◽  
Cooling Stage ◽  
High Position ◽  
Sma Actuators ◽  
Low Weight ◽  
Selection Of

Shape memory alloy (SMA) actuators have recently demonstrated their potential for various applications in fields such as robotics, medicine, aerospace, and automotive. Its features, such as low weight and high force, simplicity, noiseless operation, and low cost compared with other conventional actuator, are only a few advantages of this actuator, which is receiving increasing interest among researchers. However, the use of these actuators is still limited by some of their characteristics: high position error in the cooling stage when the actuator works at frequencies that exceed the necessary cooling time and high electrical energy consumption. Different actuator configurations can help minimize these disadvantages through modifying the length, the number of cables, or the sheath used in the actuator, which modify the characteristics of the complete system. In this work, we developed different configurations of SMA actuators and tested their performance in terms of efficiency and the position error in the cooling stage. The findings demonstrate that over-dimensioned actuators are more energetically efficient and present a faster initial form recovery. The multi-wires actuator configuration produce a better response in terms of position but are less energy efficient. These conclusions allow for the selection of the most appropriate configuration based on the requirements of each particular application.

scholarly journals Electronic Phenomena of Transition Metal Oxides

Crystals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 256
Author(s):  
Christian Rodenbücher ◽  
Kristof Szot
Keyword(s):  
Solid State ◽  
Transition Metal ◽  
Metal Oxides ◽  
Real World ◽  
Transition Metal Oxides ◽  
Major Research ◽  
Research Fields ◽  
Real World Applications

Transition metal oxides with ABO3 or BO2 structures have become one of the major research fields in solid state science, as they exhibit an impressive variety of unusual and exotic phenomena with potential for their exploitation in real-world applications [...]

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