tag: EPFL

Smartphones Show Their Weaknesses
By Ann Mutschler - 04 Sep, 2014 - Comments: 0

According to researchers at the University of Michigan, a weakness believed to exist in Android, Windows and iOS operating systems could be used to obtain personal information from unsuspecting users. This hack was demonstrated in an Android phone and was successful between 82 and 92% of the time on six of seven popular apps that were tested. Gmail, CHASE Bank and H&R Block were among those ... » read more

System Bits: Aug. 12
By Ann Mutschler - 12 Aug, 2014 - Comments: 0

Wearable, continuous disease monitoring A new wearable vapor sensor being developed at the University of Michigan could one day offer continuous disease monitoring for patients with diabetes, high blood pressure, anemia or lung disease, according to researchers there. The new sensor, which can detect airborne chemicals either exhaled or released through the skin, would likely be the first w... » read more

Rethinking Encryption
By Ann Mutschler - 07 Jul, 2014 - Comments: 0

With security experts working around the clock to beat the hackers, because the hackers are doing the very same thing to beat the security experts, it doesn’t come as much of a surprise to learn that researchers at European university EPFL have cracked a so-called “unassailable encryption algorithm” in just two hours. It turns out, a protocol based on allegedly tamper-proof “discrete... » read more

Power/Performance Bits: June 24
By Ann Mutschler - 24 Jun, 2014 - Comments: 0

Solar-cell efficiency in one step Rice University scientists have created a single-step process for producing highly efficient materials that let the maximum amount of sunlight reach a solar cell. The Rice lab of chemist Andrew Barron found a simple way to etch nanoscale spikes into silicon that allows more than 99 percent of sunlight to reach the cells’ active elements, where it can be t... » read more

System Bits: June 10
By Ann Mutschler - 10 Jun, 2014 - Comments: 0

Graphene for dummies EPFL researchers have developed a “how-to” manual for making the most efficient optical graphene circuits possible that facilitates and accelerates technological development in this future field. Graphene holds great promise as the basis for new chips that are faster, better-performing and more compact. For example, graphene makes it possible to design systems that ... » read more

System Bits: May 13
By Ann Mutschler - 13 May, 2014 - Comments: 0

Bringing hyperbolic metamaterials closer to reality Purdue Researchers have taken a step toward practical applications for hyperbolic metamaterials, which are ultra-thin crystalline films that could bring optical advances for microscopes, quantum computers and high-performance solar cells. Optical metamaterials harness clouds of electrons called surface plasmons to manipulate and control li... » read more

Power/Performance Bits: April 29
By Ann Mutschler - 29 Apr, 2014 - Comments: 0

Lithium-free flexible battery A Rice University laboratory has flexible, portable and wearable electronics in its sights with the creation of a thin film for energy storage. The researchers have developed a flexible material with nanoporous nickel-fluoride electrodes layered around a solid electrolyte to deliver battery-like supercapacitor performance that combines the best qualities of a h... » read more

Manufacturing Bits: March 11
By Mark LaPedus - 11 Mar, 2014 - Comments: 0

Plasmonic lab-on-a-chip For some time, lab-on-a-chip (LOC) systems have generated interest in the medical field. LOC systems provide analysis of biomolecules for use in basic biology research, disease marker identification and pharmaceutical drug screening. In one effort, Boston University, the California Institute of Technology, EPFL, Pontificia Universidad Catolica del Peru and UCLA have ... » read more

System Bits: Feb. 11
By Ann Mutschler - 11 Feb, 2014 - Comments: 0

Ballistic transport in graphene Using electrons more like photons could provide the foundation for a new type of electronic device that would capitalize on the ability of graphene to carry electrons with almost no resistance even at room temperature in a process known as ballistic transport, according to researchers at Georgia Tech. Ballistic transport is the process by which electrical res... » read more

Power/Performance Bits: Feb. 4
By Ann Mutschler - 04 Feb, 2014 - Comments: 0

Lead halide perovskites Paving the way to the design of photovoltaic converters with improved efficiency, researchers at Ecole Polytechnique Fédérale de Lausanne (EPFL) said they have uncovered the mechanism by which solar cells based on lead iodide perovskite light-absorbing semiconductor transfer electrons along their surface. Photovoltaic systems based on lead halide perovskite are a n... » read more

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