Nanowerk October 8, 2019 Researchers in Spain evaluated different strategies that enable the obtention of electric charge accumulators from the electrochemical reduction of graphene oxide on the surface of the activated carbon (reduced graphene oxide – RGO) and the subsequent electrosynthesis of polyaniline (Pani). They are supercondensers placed on active carbon tissues that stand out due to their electric properties and high level of power. The devices they have designed and tested make use of all the potential of active carbon, graphene and polyaniline, a polymer with high capabilities that is already broadly used in textile materials. The supercondensers could […]
Tag Archives: S&T Spain
New nanoantennas to improve ultra-fast wireless connections
Phys.org July 22, 2019 Typically used plasmonic wires introduce prohibitive losses, perform poorly for long-reach interconnects because of low-directive radiation and low efficiency. Researchers in Spain have designed a class of slot-waveguide-based silicon nanoantennas that address these limitations. To test the performance of these antennae, an on-chip plasmonic-dielectric interconnect was experimentally demonstrated over distances as high as 100 μm. The wireless scheme clearly outperformed previous plasmonic approaches in terms of link efficiency and effective gain. This work paves the way for the development of ultrafast on-chip wireless reconfigurable and flexible interconnects and opens new avenues in optical manipulation and sensing […]
New way to protect against high-dose radiation damage discovered
Science Daily May 30, 2019 Exposure to high-dose irradiation (>10 gray) from the uncontrolled release of radioactive materials or intensive radiotherapy for cancer treatment can cause gastrointestinal syndrome (GIS), a lethal disorder affecting the intestinal structure. To assess medical countermeasures, it is essential to develop specific and robust animal models in which the relationship between radiation doses, GIS incidence, and severity can be correlated with the histopathology of the intestine. Researchers in Spain aim to understand cell biology and molecular events of GIS after radiation exposure by using a genetic GIS mouse model generated in their laboratory. This information will […]
Fail-safe, reconfigurable chips
Phys.org December 28, 2018 According to researchers in Spain faults often take place within the components of the circuits, which end up affecting their final performance. They have developed a technique which makes it possible to predict where the circuit will fail and configure the other components to make up for these deficiencies, thus guaranteeing their maximum performance. Each one of the units of the circuit is configured, and by applying mathematic induction techniques, offers a diagnosis of how the circuit would behave in each of the ports. Based on this diagnosis modifications can be made as needed… read more. […]
Big data used to predict the future
Science Daily November 9, 2018 Using the multi-output regression models researchers in Spain have developed a technique to predict several variables simultaneously based on the same set of input variables, thus reducing the size of data necessary for the forecast to be exact. In tests they were able to reduce the amount of information needed to predict by 80% without affecting the predictive performance…read more. TECHNICAL ARTICLE
Quantum technologies can be applied on a standard telecommunications network
Phys.org October 4, 2018 Researchers in Spain have developed a quantum cryptography network integrated in a commercial optical network through technologies based on software defined networking allowing for the implementation of quantum and classical network services in a flexible, dynamic and scalable manner. The technology has been developed on an existing infrastructure using standard communications systems and allows switching between links connecting points that may be up to 60 kilometers apart. Twenty channels can share the same fiber in the same optical band that uses the quantum channel, allowing the simultaneous transmission of quantum signals with more than two terabytes […]
Invisible magnetic sensors measure magnetic fields without disturbing them
Phys.org April 25, 2018 Researchers in Spain present a general strategy on how to make a sensor magnetically invisible while keeping its ability to sense. The sensor is rendered undetectable by surrounding it with a spherical shell having a tailored magnetic permeability. The method can be applied to arbitrary shape magnetic sensors in arbitrary magnetic fields. The invisibility can be made exact when the sensor is spherical, and the probed field is uniform. They are exploring cloaking properties for AC fields or incorporating the intriguing concept of negative static permeability for creating novel shapes of magnetic fields… read more. Open […]
New transistor concept, solar cell included
Physorg March 6, 2018 Researchers in Spain propose a compact self-powered transistor that incorporates the energy source and a transistor into the same slim unit. They used ferroelectric oxide to create the heterojunction needed for solar functionality. It harnesses the switchable polarisation of the ferroelectric layer to achieve off and on states –1s and 0s– in the flow of electrons harvested by the organic semiconductor. Coined the “solaristor”, this game-changing concept combines the best of solar cells and the best of transistors into a single device the size of a biological cell… read more. TECHNICAL ARTICLE