Neural Processing Unit based on the Optical Bistable Properties of Semiconductor Laser Amplifiers

This paper analyzes the behavior of a neural processing unit based on the optical bistable properties of semiconductor laser amplifiers. A similar unit to the reported here was previously employed in the simulation of the mammalian retina. The main advantages of the present cell are its larger fan-out and the possibility of different responses according to the light wavelength impinging onto the cell. These properties allow to work with larger structures as well as to obtain different behaviors according to the light characteristics. This new approach gives a possible modeling closer to the real biological configurations. Moreover, a more detailed analysis of the basic cell internal behavior is reported

On subjective impressions or how to put numbers to visual illusions

This paper presents a simple theory to analyze some of the more common visual illusions. The reported mathematical model is able to give some numerical results concerning well known phenomena as the Zollner, Muller-Lyer or Wundt illusions. We present two different approaches, the first one related with the symmetrical operations present in each image and the second one concerning a proposed vector field related with the lines present at the image

A new approach to a model of the mammalian retina with optically programmable logic cells

This paper reports a model of the mammalian retina as well as an interpretation of some functions of the visual cortex. Its main objective is to simulate some of the behaviors observed at the different retina cells depending on the characteristics of the light impinging onto the photoreceptors. This simulation is carried out with a simple structure employed previously as basic building block of some optical computer architectures. Its possibility to perform any type of Boolean function allows a wide range of behaviors.

Analysis of neuronal functions based on feynman diagrams

A method to study some neuronal functions, based on the use of the Feynman diagrams, employed in many-body theory, is reported. An equation obtained from the neuron cable theory is the basis for the method. The Green's function for this equation is obtained under some simple boundary conditions. An excitatory signal, with different conditions concerning high and pulse duration, is employed as input signal. Different responses have been obtained

Minimal template size for Iris-Recognition

A method to achieve improvement in template size for an iris-recognition system is reported. To achieve this result, the biological characteristics of the human iris have been studied. Processing has been performed by image processing techniques, isolating the iris and enhancing the area of study, after which multi resolution analysis is made. Reduction of the pattern obtained has been obtained via statistical study.

A telematics solution for the remote follow-up of malnourished children in underserved areas

The identification of malnourished children living under extreme poverty conditions in isolated areas is crucial to trigger urgent interventions like supplementary or therapeutic feeding. This work aims to strengthen the task of following-up malnourished maternal-child population in rural areas of developing countries like Nicaragua. The solution facilitates low-cost health nutritional remote monitoring to support rural communities at the point of care. Thus, the system allows medical staff to communicate with brigades, who transmit anthropometric measurements, such as weight and height of the children, from communities which are sited about 12 km. far away. A hybrid WiMAX/WiFi architecture was deployed to provide affordable communications between the isolated communities and the health center. Furthermore, a free PBX software and an open information system, installed at the health center, support WiFi based mobile communications and information management to support the care needs of maternal-child population at risk.

General mathematics /

Includes index.

Comentum super Dantis Aldigherij comoediam nunc primum integre in lucem ed. /

Mode of access: Internet.

Miscellaneous state papers : from 1501-1726 ...

Mode of access: Internet.

A collection of farces and other afterpieces : which are acted at the Theatres Royal, Drury-Lane, Covent-Garden and Hay-Market. /

v.6. The deuce is in him / by George Colman. Edgar and Emmeline / by John Hawkesworth. Richard Coeur de Lion / [by M.J. Sedaine] The maid of the Oaks / by John Burgoyne. Tom Thumb / [by Henry Fielding] The doctor and the apothecary / [by James Cobb] The first floor / [by James Cobb] The adopted child / by Samuel Birch. The farm house / [by Charles Johnson]--v.7. Lodoiska / by J.P. Kemble. Ways and means / by George Colman. The school for authors / by John Tobin. Midas / [by Kane O'Hara] The waterman / by Charles Dibdin. The author / by Samuel Foote. The old maid / [by Arthur Murphy] The miller of Mansfield / by Richard Dodsley. Comus / altered from John Milton.

1907 University of Michigan Football Team

1908 University of Michigan Football Team

University of Michigan Football Team, 1906

Top Row: Albert Chandler, Ivan Steckle

3rd Row:George Wheeler, Walter Eyke, Harry Bishop, ? Morgan, Coach Fielding Yost, John Garrels, Arthur Wright, William Embs

2nd Row: trainer Keene Fitzpatrick, Harry Hammond, Walter Graham, Captain John Curtis, John Loell, Carl Clement, Mason Runney, Frederick Witmire, mnagr. Lawrence Hull

Front Row: Paul Magoffin, Harry Workman, Fred Newton

1905 University of Michigan Football team

1905 University of Michigan Football team