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'Floating' microgrids: Optimizing naval ships' power systems

Supported by two Office of Naval Research grants totaling $900,000, Wenxin Liu, of Lehigh University, will continue research into the advanced control of power systems through algorithmic design and hardware experimentation. He will examine real-time optimal power flow control in power electronic power distribution systems and investigate the coordination of heterogeneous generators within a naval ship's power system. Both projects could lead to improvements in civilian microgrid technology.

China , California , United-states , Missouri , University-of-missouri , Shenyang , Liaoning , Wenxin-liu , Research-laboratory , National-science-foundation , Lehigh-university , Northeastern-university

Physicists will print magnets with a 3D printer

Credit: UrFU / Victoria Maltseva.
Physicists at the Ural Federal University (UrFU, Ekaterinburg, Russia) will print unique magnets, magnetic systems, soft magnetic elements with a 3D printer. Samples made with this printer can be useful in almost any field from medicine to space. For example, it can be used by robotic surgical assistants to unclog arteries and veins or to place stents. According to Aleksey Volegov, associate professor of the Department of magnetism and magnetic nanomaterials at the UrFU, now scientists are deciding which kind of magnets they will start printing first.
"These will be magnets based on either samarium or cobalt compounds. They can be used in submarines, at space stations, on ships. That is, in those areas where there are very strong temperature changes and we need magnets with special properties in terms of stability," said Aleksey Volegov. "Or it will be simple magnets based on an alloy of neodymium, iron, and boron, which work at normal temperatures. Such magnets are used in smartphones, hard disk drives, and automotive engine sensors. For example, such magnets are installed in the latest generation Tesla electric motors."

Germany , Ekaterinburg , Sverdlovskaya-oblast , Russia , German , Aleksey-volegov , Ural-federal-university-ur , Ural-federal-university , Chemistry-physics-materials-sciences , Electromagnetics , Materials

Spin-to-charge conversion achieves 95% overall qubit readout fidelity

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IMAGE: a) Energy levels used to achieve SCC. b) A schematic diagram of SCC readout. c) The excitation spectrum of the nitrogen-vacancy (NV) center used here at cryogenic temperature of 8?K....
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Credit: ZHANG Qi et al.
The team led by Professor DU Jiangfeng and Professor WANG Ya from the Chinese Academy of Sciences (CAS) Key Laboratory of Microscale Magnetic Resonance of the University of Science and Technology of China put forward an innovative spin-to-charge conversion method to achieve high-fidelity readout of qubits, stepping closer towards fault-tolerant quantum computing.
Quantum supremacy over classical computers has been fully exhibited in some specific problems, yet the next milestone, fault-tolerant quantum computing, still requires the accumulated logic gate error and the spin readout fidelity to exceed the fault-tolerant threshold. DU's team has resolved the first requirement in the nitrogen-vacancy (NV) center system [

China , Jiang-feng , Zhejiang , Chinese , Nature-communications , Chinese-academy-of-sciences , Technology-of-china , Chinese-academy , Key-laboratory , Microscale-magnetic-resonance , Chemistry-physics-materials-sciences

Search for strange Skyrmion phenomenon fails but finds stranger magnetic beaded necklace

Physicists on the hunt for a rarely seen magnetic spin texture have discovered another object that bears its hallmarks, hidden in the structure of ultra-thin magnetic films, that they have called an incommensurate spin crystal.

United-kingdom , Sam-seddon , Marin-alexe , Royal-society , Nature-communications , University-of-warwick , United-kingdom-research , Magnetic-force-microscopy , University-of-warwick-department-physics , Sciences-research-council , Topological-hall , Warwick-department

Researchers realize synthetic gauge fields in single optomechanical resonator

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IMAGE: (a-b) Multimode interaction in a single optomechanical resonator creates an extensible synthetic gauge field; (c-e) Responses of optical photons and phonons in the cavity under different synthetic magnetic field intensities....
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Credit: CHEN Yuan et al.
The research team led by Prof. GUO Guangcan and Dr. DONG Chunhua from the University of Science and Technology of China realized synthetic gauge fields in a single optomechanical resonator by controlling geometric phase with the multimode interaction in the micro-resonator.
By engineering a Hamiltonian, uncharged particles or bosonic excitations can acquire a path-dependent phase which realizes a synthetic magnetic field. Such synthetic gauge field can improve the precision of quantum many-body simulation and control over bosons.

China , Chunhua , Shaanxi , University-of-science , Technology-of-china , Physics-review , Chemistry-physics-materials-sciences , Atomic-molecular-particle-physics , Electromagnetics , Optics , Technology-engineering-computer-science

Polarized photovoltaic properties emerge

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IMAGE: Tungsten selenide (WSe2) and black phosphorus (BP) do not exhibit polarized electronic behavior until combined such that their structures overlap.
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Credit: ©2021 Ideue et al.
For the first time, researchers have discovered a way to obtain polarity and photovoltaic behavior from certain nonphotovoltaic, atomically flat (2D) materials. The key lies in the special way in which the materials are arranged. The resulting effect is different from, and potentially superior to, the photovoltaic effect commonly found in solar cells.
Solar power is considered a key technology in the move away from fossil fuels. Researchers continually innovate more efficient means to generate solar energy. And many of these innovations come from the world of materials research. Research Associate Toshiya Ideue from the University of Tokyo's Department of Applied Physics and his team are interested in the photovoltaic properties of 2D materials and their interfaces where these materials meet.

Tokyo , Japan , Research-associate-toshiya-ideue , University-of-tokyo-department-applied-physics , Associate-toshiya-ideue , Applied-physics , Chemistry-physics-materials-sciences , Electromagnetics , Energy-fuel-non-petroleum , Materials , Electrical-engineering-electronics

NTU Singapore scientists develop device to 'communicate' with plants using electrical signals

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VIDEO: Plant talk: A team of scientists led by #NTUsg? has developed a device that can 'communicate' with plants by delivering electrical signals to and from plants. Potential uses of the...
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Credit: NTU Singapore
A team of scientists led by Nanyang Technological University, Singapore (NTU Singapore) has developed a device that can deliver electrical signals to and from plants, opening the door to new technologies that make use of plants.
The NTU team developed their plant 'communication' device by attaching a conformable electrode (a piece of conductive material) on the surface of a Venus flytrap plant using a soft and sticky adhesive known as hydrogel. With the electrode attached to the surface of the flytrap, researchers can achieve two things: pick up electrical signals to monitor how the plant responds to its environment, and transmit electrical signals to the plant, to cause it to close its leaves.

Singapore , Chen-xiaodong , Nanyang-technological-university , Innovative-centre-for-flexible-devices , Singapore-agency-for-science , Institute-of-materials-research , Nature-electronics , Chair-professor , Materials-science , Innovative-centre , Flexible-devices , Materials-research

Smart quantum technologies for secure communication

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Researchers from Louisiana State University have introduced a smart quantum technology for the spatial mode correction of single photons. In a paper featured on the cover of the March 2021 issue of
Advanced Quantum Technologies, the authors exploit the self-learning and self-evolving features of artificial neural networks to correct the distorted spatial profile of single photons.
The authors, PhD candidate Narayan Bhusal, postdoctoral researcher Chenglong You, graduate student Mingyuan Hong, undergraduate student Joshua Fabre, and Assistant Professor Omar S. Magaña?Loaiza of LSU--together with collaborators Sanjaya Lohani, Erin M. Knutson, and Ryan T. Glasser of Tulane University and Pengcheng Zhao of Qingdao University of Science and Technology--report on the potential of artificial intelligence to correct spatial modes at the single-photon level.

Louisiana , United-states , Qingdao , Shandong , China , Cheng-long , Hainan , Erinm-knutson , Sanjaya-lohani , Joshua-fabre , Pengcheng-zhao , Narayan-bhusal

Distinguished Lehigh researcher Zakya Kafafi elected to National Academy of Engineering

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IMAGE: Zakya H. Kafafi has been elected to the National Academy of Engineering. She serves as Distinguished Research Fellow in Electrical and Computer Engineering in Lehigh University's P.C. Rossin College of...
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Credit: Lehigh University
Zakya H. Kafafi, Distinguished Research Fellow within the P.C. Rossin College of Engineering and Applied Science at Lehigh University, was recently elected to the National Academy of Engineering (NAE), one of the highest honors given to engineers in the United States.
The NAE provides guidance to the federal government and conducts independent studies in engineering while honoring individuals who have made significant contributions to research, practice, and education, and who have been influential in new fields of technology.

United-states , Egypt , Kuwait , Washington , Naval-research-laboratory , District-of-columbia , Houston , Texas , Rice-university , University-of-houston , America , American

Keeping it cool: New approach to thermal protection in outdoor wearable electronics

Wearable devices and biosensors are prone to heating up, especially under sunlight. However, conventional radiative coolers contain metallic materials, which limits wireless communications. Now scientists from Korea and the USA have developed a new type of radiative cooler using perforated polymers that keep the gadgets cool and fully functional under heat, paving the way for thermally protected wearable devices for health monitoring.

South-korea , Gwangju , Kwangju-gwangyoksi , Gwangju-institute-of-science , Advanced-science , Professor-young-min-song , Gwangju-institute , Proud-creator , Future-science , Chemistry-physics-materials-sciences , Electromagnetics