Radio wave

We've detected a star barely hotter than a pizza oven – the coldest ever found to emit radio waves

Retrieved on: 
Thursday, July 13, 2023
Electron, Flare, Radiation, Field line, Object (computer science), Australia Telescope Compact Array, The Astrophysical Journal, Murchison Radio-astronomy Observatory, Research, Temperature, MeerKAT, Planet, Pathfinder, Radio, Observation, Telescope, Radio wave, Electromagnetic radiation, Gamilaraay, Australian Square Kilometre Array Pathfinder, Murchison, Lithium, Medical imaging, Communications satellite, Fireworks, Surveying

Our findings, published today in the Astrophysical Journal, detail the detection of pulsed radio emission from this star, called WISE J0623.

Key Points: 
  • Our findings, published today in the Astrophysical Journal, detail the detection of pulsed radio emission from this star, called WISE J0623.
  • Despite being roughly the same size as Jupiter, this dwarf star has a magnetic field much more powerful than our Sun’s.

Making waves with radio stars

    • With over 100 billion stars in our Milky Way galaxy, it might surprise you astronomers have detected radio waves from fewer than 1,000 of them.
    • Most of the detections of stars with radio telescopes over the past few decades have been flares from highly active stars or energetic bursts from the interaction of binary (two) star systems.
    • These cool brown dwarfs can’t sustain the levels of atmospheric activity that generates radio emission in hotter stars, making stars like WISE J0623 harder for radio astronomers to find.

How did we find the coolest radio star?

    • The telescope can see large regions of the sky in a single observation and has already surveyed nearly 90% of it.
    • So how do we tell which of these millions of sources are radio stars?
    • By selecting only highly circularly polarised radio sources from an earlier survey of the sky, we found WISE J0623.

What does this discovery mean?

    • Previous research has shown that radio emission detected from other cool brown dwarfs was tied to their magnetic fields and generally repeated at the same rate as the star rotates.
    • To investigate this we did follow-up observations with CSIRO’s Australian Telescope Compact Array, and with the MeerKAT telescope operated by the South African Radio Astronomy Observatory.
    • WISE J0623 is the coolest brown dwarf detected via radio waves and is the first case of persistent radio pulsations.

Building telescopes on the Moon could transform astronomy – and it's becoming an achievable goal

Retrieved on: 
Tuesday, April 18, 2023
Dark, Human, Field line, Solar System, Hydrogen, JWST, Telescope, Science, Wind, Planet, Artemis, Astronomy, Radio, Hubble Space Telescope, Radio wave, Galaxy, Transport, Environment, Royal Society, Moon

Dozens of missions, organised by multiple space agencies – and increasingly by commercial companies – are set to visit the Moon by the end of this decade.

Key Points: 
  • Dozens of missions, organised by multiple space agencies – and increasingly by commercial companies – are set to visit the Moon by the end of this decade.
  • The Moon still has much to tell us about the origin and evolution of the solar system.
  • The potential role for astronomy of Earth’s natural satellite was discussed at a Royal Society meeting earlier this year.

Far side benefits

    • The most obvious is radio astronomy, which can be conducted from the side of the Moon that always faces away from Earth – the far side.
    • The lunar far side is permanently shielded from the radio signals generated by humans on Earth.
    • For astronomy, this is the last unexplored region of the electromagnetic spectrum, and it is best studied from the lunar far side.
    • The lunar far side may be the only place where we can study this.

Signals from other stars

    • As Burns says, another potential application of far side radio astronomy is trying to detect radio waves from charged particles trapped by magnetic fields – magnetospheres – of planets orbiting other stars.
    • Radio waves from exoplanet magnetospheres would probably have wavelengths greater than 100m, so they would require a radio-quiet environment in space.
    • A similar argument can be made for attempts to detect signals from intelligent aliens.

Crater depths

    • Astronomers have lots of experience with optical and infrared telescopes operating in free space, such as the Hubble telescope and JWST.
    • However, the stability of the lunar surface may confer advantages for these types of instrument.
    • Telescopes that observe the universe at infrared wavelengths are very sensitive to heat and therefore have to operate at low temperatures.
    • On the Moon, a natural crater rim could provide this shielding for free.

Kyocera Develops New “Contactless Intelligent Millimeter-Wave Sensing System”

Retrieved on: 
Thursday, February 2, 2023
Other Health, General Health, Hardware, Other Construction & Property, Medical Devices, Technology, Construction & Property, Cardiology, Building Systems, Wearables, Mobile Technology, Other Technology, Health, Signal-to-noise ratio, Anomaly, Maintenance, Radio wave, Workforce, Ageing, Friends, Respiration, Laser Doppler vibrometer, Family, Telecommunications, Heart rate, Communication, COVID-19, AI, R, HF, Mobile phone, Medical imaging, Instrumentation, Kyocera

As such, there is a growing demand for intelligent millimeter-wave systems to perform routine inspections for building safety and to support predictive maintenance of factory equipment.

Key Points: 
  • As such, there is a growing demand for intelligent millimeter-wave systems to perform routine inspections for building safety and to support predictive maintenance of factory equipment.
  • Both diagnosing people and collecting inspection data involve tremendous volumes of information, often obtained from minute vibrations.
  • To accurately detect minute vibrations with a contactless intelligent millimeter-wave sensor, a main technical challenge has involved improving the sensor’s signal-to-noise ratio.
  • Kyocera’s Contactless Intelligent Millimeter-Wave Sensing System is not intended to be a stand-alone medical device at this stage.

DOCOMO Conducts World's First Trial of Transmissive Metasurface on Window to Deliver Indoor Radio Waves to Outdoor Foot of Building

Retrieved on: 
Monday, January 30, 2023
AGC Inc., Permeability, Radio, Millimetre, Foot, MIMO, Glass, NTT DOCOMO, INC, Radio wave, AGC, NTT, LTE, Research, Hertz, Television, Cable television, Communications satellite

DOCOMO has also been studying the use of metasurface technology to enhance radio signal reception indoors using outdoor base station(2), and to improve indoor with many obstructions as a user moves(3).

Key Points: 
  • DOCOMO has also been studying the use of metasurface technology to enhance radio signal reception indoors using outdoor base station(2), and to improve indoor with many obstructions as a user moves(3).
  • Millimeter waves from a base station installed indoor passed through transmissive metasurfaces on the window glass and throughput performance in the foot area of the building was measured.
  • DOCOMO is also researching and developing various technologies to improve indoor and outdoor coverage in the high frequency bands.
  • The transmissive metasurface used in the trial will be exhibited at "docomo Open House '23," which will be held online from Thursday, February 2.

$5+ Billion In-Vehicle Payment Services Industry to 2031 - Rising Preference for Contactless Payments is Significantly Driving Growth - ResearchAndMarkets.com

Retrieved on: 
Tuesday, January 3, 2023
Technology, Vehicle Technology, Electronic Commerce, Automotive, Benchmark, UK Finance, Coronavirus, RFID, Smartphone, Radio wave, Organization, Food, USD, Acquisition, Growth, JPMorgan Chase, Create, Volkswagen, Hyundai, QR, Collection, Drink, COVID, Marketing, Insurance, Mobile phone

The in-vehicle payment services market consists of sales of in-vehicle payment services by entities (organizations, partnerships, and sole proprietors) that enable payments from the vehicles.

Key Points: 
  • The in-vehicle payment services market consists of sales of in-vehicle payment services by entities (organizations, partnerships, and sole proprietors) that enable payments from the vehicles.
  • The in-vehicle payment services market research report is one of a series of new reports that provides in-vehicle payment services market statistics, including in-vehicle payment services industry global market size, regional shares, competitors with an in-vehicle payment services market share, detailed in-vehicle payment services market segments, market trends and opportunities, and any further data you may need to thrive in the in-vehicle payment services industry.
  • The growing preference for contactless payments is significantly driving the growth of the in-vehicle payment services market.
  • Therefore, the increasing preference for contactless payments is expected to propel the growth of the in-vehicle payments market going forward.

KYOCERA Develops Transmissive Metasurface Technology That Redirects Wireless Signals for Improved 5G and 6G Performance

Retrieved on: 
Monday, April 18, 2022
Technology, Manufacturing, Telecommunications, Mobile, Wireless, Networks, Other Manufacturing, Hardware, Element, Electromagnetic metasurface, Kyocera, Wall Street, Location, Metal, Corporation, Technology, Radio wave, DBm, Company, Communication, RIS, Multimedia, Radio, Real-time locating system, Forbes, Ceramic, Communications satellite, Television, Kagoshima Prefecture

Kyocera Corporation (President: Hideo Tanimoto) (TOKYO:6971) has developed a Transmissive Metasurface technology that can redirect wireless network signals in a specific direction to improve the coverage area and performance of 5G and eventually 6G networks.

Key Points: 
  • Kyocera Corporation (President: Hideo Tanimoto) (TOKYO:6971) has developed a Transmissive Metasurface technology that can redirect wireless network signals in a specific direction to improve the coverage area and performance of 5G and eventually 6G networks.
  • Reflective Metasurface technology offers a very limited ability to change the direction of a signal to reach these areas.
  • To solve this issue and expand performance, Kyocera developed a new Transmissive Metasurface technology that can redirect radio waves at smaller angles to extend targeted network coverage.
  • The area in which a Transmissive Metasurface can deliver signals is proportional to the size of the metasurface itself.

Caritas of Birmingham Launches 30 Day Radio Series to Connect People to Medjugorje

Retrieved on: 
Thursday, February 24, 2022
People, Religion, WAVE, Music, Internet, Family, Politics, Medicine, Revelation, Virginity, Radio, Printing, Capital, Capital City, Radio wave, Program, Book, Television, Broadcasting, Nightclub, Medjugorje, Caritas

Terry Colafrancesco, who writes and broadcasts under the name, "a Friend of Medjugorje," founded and heads Caritas of Birmingham, the largest Medjugorje center in the world.

Key Points: 
  • Terry Colafrancesco, who writes and broadcasts under the name, "a Friend of Medjugorje," founded and heads Caritas of Birmingham, the largest Medjugorje center in the world.
  • He has written hundreds of books on the Medjugorje phenomenon and is considered the global authority on the Medjugorje messages.
  • Terry said Mejanomics was, "taking the messages of Medjugorje and placing them as a 'template' over world events money, politics, everything."
  • Listeners can tune-in to the Woman of Revelation series each night on Radio WAVE from February 18 to March 18, 2022, on Caritas of Birmingham's website, Medjugorje.com.

UVA’s Craig Meyer Elected to National Academy of Inventors

Retrieved on: 
Tuesday, December 7, 2021
University, Precision medicine, Technology, Woman, Stanford University, Faculty, Acquisition, Radiology, Student, Blood, GLOBE, Health, Cancer, Biomedical engineering, Patient, Water, Freezing, Perfusion, Engineering, University of Virginia, School, Growth, UVA, Applied science, Mathematics, Doctor of Philosophy, Education, Neoplasm, Proton, Cell, Quality of life, National academy, Radio wave, Science, Intelligence, Elective surgery, Time, No, National Academy of Inventors, Patent, Program, MRI, Fellows, Physics, Prognosis, Magnet, Renaissance School of Medicine at Stony Brook University, Economic development, Magnetic resonance imaging, Medical imaging, Pharmaceutical industry, Medicine, Food industry

Today, more than 36 patents and three decades later, Meyer, professor of biomedical engineering and radiology and medical imaging at the University of Virginia, has been named a fellow of the National Academy of Inventors, the highest professional distinction accorded solely to academic inventors.

Key Points: 
  • Today, more than 36 patents and three decades later, Meyer, professor of biomedical engineering and radiology and medical imaging at the University of Virginia, has been named a fellow of the National Academy of Inventors, the highest professional distinction accorded solely to academic inventors.
  • I dont do this just to get patents, but patents can help facilitate progress to commercialization, Meyer said.
  • The National Academy of Inventors Fellows Program was established to highlight academic inventors who have used their skills to make an impact on quality of life, economic development and the welfare of society.
  • I am honored that I was selected to become a fellow of the National Academy of Inventors.

NTT and NTT DOCOMO Trial First Use of User-tracking Metasurface Reflector for Extreme Mobile Coverage in Current 5G and Coming 6G Era

Retrieved on: 
Monday, November 15, 2021
NTT, RIS, Technology, Growth, Radio, Fortune, AGC Inc., Fortune Global 500, Travel, Millimetre, Radio wave, NTT DOCOMO, Workplace, INC, Rochester Telephone Corporation, Mobile phone, Communications satellite

The technology is expected to expand the use of high-frequency radio bands in places such as factories and offices.

Key Points: 
  • The technology is expected to expand the use of high-frequency radio bands in places such as factories and offices.
  • To overcome the problem, one solution is to reflect and redirect the signals, but conventional reflectors can only redirect signals in fixed directions.
  • The RIS reflector will be exhibited at NTT R&D Forum 2021(*), which is being held online from November 11 to 16.
  • NTT DOCOMO, Japan's leading mobile operator with over 83 million subscriptions, is one of the world's foremost contributors to 3G, 4G and 5G mobile network technologies.