Science

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Next-generation Microshutter Array Technology

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This image shows a close-up view of the next-generation microshutter arrays — designed to accommodate the needs of future observatories — during the fabrication process.

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Molecular engineers record an electron's quantum behavior

A team of researchers led by the University of Chicago has developed a technique to record the quantum mechanical behavior of an individual electron contained within a nanoscale defect in diamond. Their technique uses ultrafast pulses of laser light both to control the defect's entire quantum state and observe how that single electron state changes over time.

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These images show a diamond sample with a hemispherical lens (right and lower left), and the location of a single electron spin/quantum state visible through its light emission (upper left). The scale bar on the image at upper left measures five microns, the approximate diameter of a red blood cell.

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Hubble Revisits a Globular Cluster’s Age

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http://www.nasa.gov/content/goddard/hubble-revisits-a-globular-cluster-s...

內湖 2021 陳鵬程

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Tall Boulder Rolls Down Martian Hill, Lands Upright

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Watching the Winds Where Sea Meets Sky

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The SeaWinds scatterometer on NASA's QuikScat satellite stares into the eye of 1999's Hurricane Floyd as it hits the U.S. coast. The arrows indicate wind direction, while the colors represent wind speed, with orange and yellow being the fastest.

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NASA's Chandra Observatory Searches for Trigger of Nearby Supernova

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New test reveals purity of graphene: Rice, Osaka scientists use terahertz waves to spot contaminants

Graphene may be tough, but those who handle it had better be tender. The environment surrounding the atom-thick carbon material can influence its electronic performance, according to researchers at Rice and Osaka universities who have come up with a simple way to spot contaminants.

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Rice and Osaka researchers have come up with a simple method to find contaminants on atom-thick graphene. By putting graphene on a layer of indium phosphide, which emits terahertz waves when excited by a laser pulse, they can measure and map changes in its electrical conductivity.

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Eco-friendly 'pre-fab nanoparticles' could revolutionize nano manufacturing: UMass Amherst team invents a way to create versatile, water-soluble nano-modules

A team of materials chemists, polymer scientists, device physicists and others at the University of Massachusetts Amherst today report a breakthrough technique for controlling molecular assembly of nanoparticles over multiple length scales that should allow faster, cheaper, more ecologically friendly manufacture of organic photovoltaics and other electronic devices.

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Postdoctoral research associate Monojit Bag (left) and graduate student Tim Gehan (right) synthesize polymer nanoparticles for use in organic-based solar cells being made at the University of Massachusetts Amherst-based energy center. Deep purple nanoparticles are forming in the small glass container above Gehan's left hand.

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New material could enhance fast and accurate DNA sequencing

Gene-based personalized medicine has many possibilities for diagnosis and targeted therapy, but one big bottleneck: the expensive and time-consuming DNA-sequencing process.

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A DNA molecule passes through a nanopore in a sheet of molybdenum disulfide, a material that researchers have found to be better than graphene at reading the DNA sequence.

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Non-Enzyme Nanosensors Quickly Measure Blood Sugar

Results of the research can meet the needs of hospitals and diagnosis laboratories to a cheap, quick and accurate sensor for the measurement of blood sugar in patients.