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Category: Electrical Engineering

Wind tunnel tests could help kites become a clean energy high-flier

Credit: CC0 Public Domain The use of kites to capture wind energy and turn it into cost-effective ‘green’ electricity could be coming within reach, with EPSRC-funded research at Imperial College London playing an important role in making it possible. Linked to a wider Innovate UK-funded project, a team at Imperial’s Department of Aeronautics has put a kite-energy device through its paces using a wind tunnel that is part of the EPSRC-supported National Wind Tunnel Facility (NWTF). The data produced has…

Clarifying the economic value of adjusting power consumption

Credit: CC0 Public Domain Since the output of renewable energy such as photovoltaic generation tends to fluctuate, the power system can be viewed as a large-scale complex system with uncertainty. To stabilize the balance of supply and demand of electricity, we need an energy management system to control this. In recent years, energy management systems have been actively researched against the background of the liberalization of power and the spread of smart meters that visualize the power consumption. Koichi Kobayashi,…

Researchers create soft, flexible materials with enhanced properties — ScienceDaily

A team of polymer chemists and engineers from Carnegie Mellon University have developed a new methodology that can be used to create a class of stretchable polymer composites with enhanced electrical and thermal properties. These materials are promising candidates for use in soft robotics, self-healing electronics and medical devices. The results are published in the May 20 issue of Nature Nanotechnology. In the study, the researchers combined their expertise in foundational science and engineering to devise a method that uniformly…

Scientists develop material that can drive mechanical systems — ScienceDaily

New research from the laboratory of Ozgur Sahin, associate professor of biological sciences and physics at Columbia University, shows that materials can be fabricated to create soft actuators — devices that convert energy into physical motion — that are strong and flexible, and, most important, resistant to water damage. “There’s a growing trend of making anything we interact with and touch from materials that are dynamic and responsive to the environment,” Sahin says. “We found a way to develop a…

Electric field-based dressing helps heal wound infections — ScienceDaily

Researchers at Indiana University School of Medicine have found a way to charge up the fight against bacterial infections using electricity. Work conducted in the laboratories of the Indiana Center for Regenerative Medicine and Engineering, Chandan Sen, PhD and Sashwati Roy, PhD has led to the development of a dressing that uses an electric field to disrupt biofilm infection. Their findings were recently published in the journal Annals of Surgery. Bacterial biofilms are thin, slimy films of bacteria that form…

Algorithm stitches multiple datasets into a single ‘panorama,’ which could provide new insights for medical and biological studies. — ScienceDaily

A new algorithm developed by MIT researchers takes cues from panoramic photography to merge massive, diverse cell datasets into a single source that can be used for medical and biological studies. Single-cell datasets profile the gene expressions of human cells — such as a neurons, muscles, and immune cells — to gain insight into human health and treating disease. Datasets are produced by a range of labs and technologies, and contain extremely diverse cell types. Combining these datasets into a…

Smart pill bottle keeps drugs safe

A flexible computer inside a medication bottle can send wireless SMS messages when someone attempts to tamper with it. Credit: Muhammad M. Hussain Low-cost, stretchy sensors can be assembled inside the lid of a drug container to help monitor patient safety. A smart pill bottle that sends wireless alerts when it detects tampering, overdose or unsafe storage conditions is just one of many potential health applications for new sensor technology being developed by a team at KAUST. Digital technology offers…

Researchers use magnetic 3D-printing technique to optimize the design and programming of tiny robots with health applications — ScienceDaily

Assembling a microrobot used to require a pair of needle-nosed tweezers, a microscope, steady hands and at least eight hours. But now University of Toronto Engineering researchers have developed a method that requires only a 3D printer and 20 minutes. In the lab of Professor Eric Diller, researchers create magnetized microrobots — the size of the head of a pin — that can travel through fluid-filled vessels and organs within the human body. Diller and his team control the motion…

Organic cathode offers more reliable contact with electrolyte, a key to stability — ScienceDaily

Solid-state sodium-ion batteries are far safer than conventional lithium-ion batteries, which pose a risk of fire and explosions, but their performance has been too weak to offset the safety advantages. Researchers Friday reported developing an organic cathode that dramatically improves both stability and energy density. The improved performance, reported in the journal Joule, is related to two key findings: The resistive interface between the electrolyte and cathode that commonly forms during cycling can be reversed, extending cycle life, and The…

Transparent architecture

The ETH spin-off Archilyse developed a software that allows the analysis of real estate down to the smallest detail. Credit: Archilyse ETH spin-off Archilyse promises nothing less than the “world’s most comprehensive architecture analysis” on its website. The young entrepreneurs are attracting a lot of interest in the real estate sector. Is a four-room apartment family-friendly or more suitable for a couple? How can office space be optimally divided so that its users feel comfortable? Archilyse helps to answer these…