Recent Comments

    Artificial Intelligence Analyzes Gravitational Lenses 10 million Times Faster

    August 31, 2017, Categories  Physics, Technology/Electronics, Astronomy/Space

    Neural Nets and Gravitational Lenses

    KIPAC scientists have for the first time used artificial neural networks to analyze complex distortions in spacetime, called gravitational lenses, demonstrating that the method is 10 million times faster than traditional analyses. (Greg Stewart/SLAC National Accelerator Laboratory)

    Brain-mimicking ‘neural networks’ can revolutionize the way astrophysicists analyze their most complex data. Researchers from the Department of Energy’s SLAC National Accelerator Laboratory and Stanford University have for the first time shown that neural networks – a form of artificial intelligence — can accurately analyze the complex distortions in spacetime known as gravitational lenses 10 million times faster than traditional methods...

    Read More

    Bioengineering a Functional Vascularized Lung Scaffold

    August 30, 2017, Categories  Health/Medical, Biology/Biotechnology

    Functional vascularized lung grafts for lung bioengineering. Science Advances, 2017; DOI: 10.1126/sciadv.1700521

    Functional vascularized lung grafts for lung bioengineering. Science Advances, 2017; DOI: 10.1126/sciadv.1700521

    New approach to bioengineering lungs selectively treats epithelium that lines the lung airway, while preserving lung vasculature. A Columbia Engineering team is the first to successfully bioengineer a functional lung with perfusable and healthy vasculature in an ex vivo rodent lung. End-stage lung disease is the third leading cause of death worldwide, accounting for 400,000 deaths per year in the US alone...

    Read More

    Chemist Synthesizes Pure Graphene

    August 30, 2017, Categories  Astronomy/Space

    UConn chemistry professor Doug Adamson has found an inexpensive way to manufacture the pristine form of this substance, which is stronger than steel and thinner than a human hair. Credit: Peter Morenus/UConn Photo

    UConn chemistry professor Doug Adamson has found an inexpensive way to manufacture the pristine form of this substance, which is stronger than steel and thinner than a human hair. Credit: Peter Morenus/UConn Photo

    A UConn chemist Professor Doug Adamson has patented a one-of-a-kind process for exfoliating graphene in its pure (unoxidized) form, as well as manufacturing innovative graphene nanocomposites that have potential uses in a variety of applications, including desalination of brackish water. If you think of graphite like a deck of cards, each individual card would be a sheet of graphene. Comprised of a single layer of carbon atoms arranged in a hexagonal lattice, graphene is a 2D crystal at least 100X stronger than steel...

    Read More

    Researchers validate UV light’s use in improving Semiconductors

    August 30, 2017, Categories  Physics, Technology/Electronics, Chemistry/Nanotechnology

    Schematic of the epitaxial growth procedure of ZnSe/GaAs heterostructure growth using either light-start or dark-start growth procedures. (a) Prior to ZnSe epilayer growth, the GaAs epilayer was grown in a dedicated III-V MBE chamber and was covered with an amorphous arsenic film prior to transferring it to a dedicated II-VI chamber. (b) The amorphous arsenic film was then thermally desorbed and the interface growth was initiated with a Zn pre-treatment under either a light-start or dark-start condition. During light-start sample growth, UV light was directed onto the growth surface from the beginning of Zn pre-treatment until the end of the ZnSe growth (f–h). During dark-start sample growth, UV light was directed onto the growth surface only during ZnSe epilayer growth (c–e).

    Schematic of the epitaxial growth procedure of ZnSe/GaAs heterostructure growth using either light-start or dark-start growth procedures. (a) Prior to ZnSe epilayer growth, the GaAs epilayer was grown in a dedicated III-V MBE chamber and was covered with an amorphous arsenic film prior to transferring it to a dedicated II-VI chamber. (b) The amorphous arsenic film was then thermally desorbed and the interface growth was initiated with a Zn pre-treatment under either a light-start or dark-start condition. During light-start sample growth, UV light was directed onto the growth surface from the beginning of Zn pre-treatment until the end of the ZnSe growth (f–h). During dark-start sample growth, UV light was directed onto the growth surface only during ZnSe epilayer growth (c–e).

    A discov...

    Read More