Neuro-fuzzy chip to handle complex tasks with analog performance

This paper presents a mixed-signal neuro-fuzzy controller chip which, in terms of power consumption, input–output delay, and precision, performs as a fully analog implementation. However, it has much larger complexity than its purely analog counterparts. This combination of performance and complexity is achieved through the use of a mixed-signal architecture consisting of a programmable analog core of reduced complexity, and a strategy, and the associated mixed-signal circuitry, to cover the whole input space through the dynamic programming of this core. Since errors and delays are proportional to the reduced number of fuzzy rules included in the analog core, they are much smaller than in the case where the whole rule set is implemented by analog circuitry. Also, the area and the power consumption of the new architecture are smaller than those of its purely analog counterparts simply because most rules are implemented through programming. The Paper presents a set of building blocks associated to this architecture, and gives results for an exemplary prototype. This prototype, called multiplexing fuzzy controller (MFCON), has been realized in a CMOS 0.7 um standard technology. It has two inputs, implements 64 rules, and features 500 ns of input to output delay with 16-mW of power consumption. Results from the chip in a control application with a dc motor are also provided

Single-atom control of the optoelectronic response in sub-nanometric cavities

By means of ab-initio time dependent density functional theory calculations carried out on an prototypical hybrid plasmonic device (two metallic nanoparticles bridged by a one-atom junction), we demonstrate the strong interplay between photoinduced excitation of localized surface plasmons and electron transport through the single atom. Such an interplay is remarkably sensitive to the atomic orbitals of the junction. Therefore, we show the possibility of a twofold tuning (plasmonic response and photoinduced current across the juntion) just by changing a single atom in the device.Comment: 5 pages, 5 figure

A Modular Programmable CMOS Analog Fuzzy Controller Chip

We present a highly modular fuzzy inference analog CMOS chip architecture with on-chip digital programmability. This chip consists of the interconnection of parameterized instances of two different kind of blocks, namely label blocks and rule blocks. The architecture realizes a lattice partition of the universe of discourse, which at the hardware level means that the fuzzy labels associated to every input (realized by the label blocks) are shared among the rule blocks. This reduces the area and power consumption and is the key point for chip modularity. The proposed architecture is demonstrated through a 16-rule two input CMOS 1-μm prototype which features an operation speed of 2.5 Mflips (2.5×10^6 fuzzy inferences per second) with 8.6 mW power consumption. Core area occupation of this prototype is of only 1.6 mm 2 including the digital control and memory circuitry used for programmability. Because of the architecture modularity the number of inputs and rules can be increased with any hardly design effort.This work was supported in part by the Spanish C.I.C.Y.T under Contract TIC96-1392-C02- 02 (SIVA)

Anderson localization in carbon nanotubes: defect density and temperature effects

The role of irradiation induced defects and temperature in the conducting properties of single-walled (10,10) carbon nanotubes has been analyzed by means of a first-principles approach. We find that di-vacancies modify strongly the energy dependence of the differential conductance, reducing also the number of contributing channels from two (ideal) to one. A small number of di-vacancies (5-9) brings up strong Anderson localization effects and a seemly universal curve for the resistance as a function of the number of defects. It is also shown that low temperatures, around 15-65 K, are enough to smooth out the fluctuations of the conductance without destroying the exponential dependence of the resistivity as a function of the tube length.Comment: 4 pages, 4 figure

Real Decreto 682/2014, de 1 de agosto, por el que se modifica el Real Decreto 191/2011, de 18 de febrero, sobre registro general sanitario de empresas alimentarias y alimentos

Real Decreto 682/2014, de 1 de agosto, por el que se modifica el Real Decreto 191/2011, de 18 de febrero, sobre registro general sanitario de empresas alimentarias y alimentos, y otros cuatro reglamentos sobre esta materia. «BOE» núm. 208, de 27 de agosto de 2014, páginas 68459 a 68465

Los nuevos reglamentos de la Unión Europea sobre productos sanitarios

Comentario a la Resolución de 16 de marzo de 2017 de la Sección Tercera del Jurado de AUTOCONTROL sobre la prohibición de incluir en la publicidad de los productos alimenticios “la referencia a su uso en centros sanitarios o a su distribución a través de oficinas de farmacia”.

Requisitos específicos de composición e información aplicables a los preparados para lactantes y preparados de continuación, así como a los requisitos de información sobre los alimentos destinados a los lactantes y niños de corta edad

Este trabajo analiza el Reglamento Delegado (UE) 2016/127 de la Comisión, de 25 de septiembre de 2015, que complementa el Reglamento (UE) nº 609/2013 del Parlamento Europeo y del Consejo en lo que respecta a los requisitos específicos de composición e información aplicables a los preparados para lactantes y preparados de continuación, así como a los requisitos de información sobre los alimentos destinados a los lactantes y niños de corta edad

Logotipo común para identificar a las personas que ofrecen al público medicamentos por venta a distancia

Reglamento de Ejecución (UE) nº 699/2014 de la Comisión, de 24 de junio de 2014, sobre el diseño del logotipo común para identificar a las personas que ofrecen al público medicamentos por venta a distancia y los criterios técnicos, electrónicos y criptográficos a efectos de la verificación de la autenticidad de dicho logotipo

Las prácticas comerciales desleales en la Ley 3/2014, por la que se modifica el Texto Refundido de la Ley General para la Defensa de los Consumidores y Usuarios

El presente trabajo analiza las reformas introducidas por la Ley 3/2014 en la regulación de las prácticas comerciales desleales