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Copper-indium oxide: A faster and cooler way to reduce our carbon footprint

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IMAGE: A record-high CO2 conversion rates at relatively low temperatures in a modified chemical-looping version of RWGS using a novel copper-indium oxide
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Credit: Waseda University
With ever-worsening climate change, there is a growing need for technologies that can capture and use up the atmospheric CO
2 (carbon dioxide) and reduce our carbon footprint. Within the realm of renewable energy, CO
2-based e-fuels have emerged as a promising technology that attempts to convert atmospheric CO
2 into clean fuels. The process involves production of synthetic gas or syngas (a mixture of hydrogen and carbon monoxide (CO)). With the help of the reverse water-gas shift (RWGS) reaction, CO ....

Yasushi Sekine , Hideaki Tsuneki , Yasushi Sato , Jun Ichiro Makiura , Yasushi Hashimoto , Takuma Higo , Kota Murakami , Department Of Applied Chemistry , Waseda University , Chemical Science , Professor Yasushi Sekine , Yutaro Kurosawa , Shuhei Ogo , Applied Chemistry , Pollution Remediation , Chemistry Physics Materials Sciences , Energy Fuel Non Petroleum , Energy Sources , Technology Engineering Computer Science , Industrial Engineering Chemistry , Research Development , கோட்டா முரகாமி , துறை ஆஃப் பயன்படுத்தப்பட்டது வேதியியல் , இரசாயன அறிவியல் , பயன்படுத்தப்பட்டது வேதியியல் , பொல்யூஶந் பரிகாரம் ,

Columbia engineers first to observe avalanches in nanoparticles

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IMAGE: An illustration of the chain-reaction process that underlies the photon avalanching mechanism Columbia Engineering researchers have realized in their nanoparticles. In this process, the absorption of a single low-energy photon.
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Credit: Miko?aj ?ukaszewicz/ Polish Academy of Sciences
New York, NY January 13, 2021 Researchers at Columbia Engineering report today that they have developed the first nanomaterial that demonstrates photon avalanching, a process that is unrivaled in its combination of extreme nonlinear optical behavior and efficiency. The realization of photon avalanching in nanoparticle form opens up a host of sought-after applications, from real-time super-resolution optical microscopy, precise temperature and environmental sensing, and infrared light detection, to optical analog-to-digital conversion and quantum sensing. ....

New York , United States , Columbia University , South Korea , Yawei Liu , P James Schuck , Emorym Chan , Artur Bednarkiewicz , Changhwan Lee , Brucee Cohen , Ayelet Teitelboim , Kaiyuan Yao , Yung Doug Suh , Angel Fernandez Bravo , Jemma Xu , James Schuck , Emory Chan , Bruce Cohen , Agata Kotulska , Energy Frontier Research Center At Columbia University , Key Laboratory Of Rare Earth Resource Utilization , Us Department Of Energy , Division Of Molecular Biophysics Integrated Bioimaging , Sungkyunkwan University , Academy Of Sciences , Changchun Institute Of Applied Chemistry ,

Taking the lab into the ocean: A fleet of robots tracks and monitors microbial communities

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Researchers from MBARI, the University of Hawai i at Mānoa (UH Mānoa), and Woods Hole Oceanographic Institution, after years of development and testing, have successfully demonstrated that a fleet of autonomous robots can track and study a moving microbial community in an open-ocean eddy. The results of this research effort were recently published in
Science Robotics.
Autonomous robotic fleets enable researchers to observe complex systems in ways that are otherwise impossible with purely ship-based or remote sensing techniques. In a time when the COVID-19 pandemic is reducing opportunities for researchers to go to sea, autonomous fleets offer an effective way to maintain a persistent presence in features of interest. ....

Hawaiian Islands , United States , State Of Hawaii , Ted Delong , David Karl , Chris Scholin , Brett Hobson , Yanwu Zhang , Lrauvs Aku , John Ryan , University Of Hawaii , Schmidt Ocean Institute , Lucile Packard Foundation , National Science Foundation , Betty Moore Foundation , Simons Foundation , School Of Ocean , Woods Hole Oceanographic Institution , Northern Hemisphere , Earth Science , Simons Collaboration , Ocean Processes , Eddy Experiment , Wave Glider , Generation Environmental Sample Processor , Climate Science ,

Robotic swarm swims like a school of fish

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IMAGE: These fish-inspired robots can synchronize their movements without any outside control. Based on the simple production and detection of LED light, the robotic collective exhibits complex self-organized behaviors, including aggregation,.
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Credit: Image courtesy of Self-organizing Systems Research Group
Schools of fish exhibit complex, synchronized behaviors that help them find food, migrate and evade predators. No one fish or team of fish coordinates these movements nor do fish communicate with each other about what to do next. Rather, these collective behaviors emerge from so-called implicit coordination individual fish making decisions based on what they see their neighbors doing. ....

Florian Berlinger , Melvin Gauci , Radhika Nagpal , Wyss Institute For Biologically Inspired Engineering , Office Of Naval Research , Wyss Institute , Research Award , Wyss Technology Development , Harvard Johna Paulson School Of Engineering , Harvard John , Applied Sciences , Biologically Inspired Engineering , Phd Candidate , Fred Kavli Professor , Computer Science , Associate Faculty Member , Naval Research , Technology Engineering Computer Science , Electrical Engineering Electronics , Mechanical Engineering , Robotry Artificial Intelligence , மெல்வின் க Au சி , ராதிகா நாக்பால் , அலுவலகம் ஆஃப் கடற்படை ஆராய்ச்சி , விஸ் நிறுவனம் , ஆராய்ச்சி விருது ,

How to keep drones flying when a motor fails

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IMAGE: When one rotor fails, the drone begins to spin on itself like a ballerina. (Image: UZH)
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Credit: UZH
As anxious passengers are often reassured, commercial aircrafts can easily continue to fly even if one of the engines stops working. But for drones with four propellers - also known as quadcopters - the failure of one motor is a bigger problem. With only three rotors working, the drone loses stability and inevitably crashes unless an emergency control strategy sets in.
Researchers at the University of Zurich and the Delft University of Technology have now found a solution to this problem: They show that information from onboard cameras can be used to stabilize the drone and keep it flying autonomously after one rotor suddenly gives out. ....

Sihao Sun , Davide Scaramuzza , Giovanni Cioffi , Delft University Of Technology , Perception Group , University Of Zurich , Delft University , Rescue Robotics , Coen De Visser , Autonomous Quadrotor Flight , Rotor Failure , Onboard Vision Sensors , Algorithms Models , Transportation Travel , Technology Engineering Computer Science , Computer Science , Multimedia Networking Interface Design , Electrical Engineering Electronics , Industrial Engineering Chemistry , Mechanical Engineering , Robotry Artificial Intelligence , ஜியோவானி சிொப்பி , டெல்ஃப்ட் பல்கலைக்கழகம் ஆஃப் தொழில்நுட்பம் , கருத்து குழு , பல்கலைக்கழகம் ஆஃப் ஸுரி , டெல்ஃப்ட் பல்கலைக்கழகம் ,