| viXra.org > Digital Signal Processing > 2003 |
 |
 |
| viXra.org > Digital Signal Processing > 2003 |
|
|
[4] viXra:2003.0507 [pdf] submitted on 2020-03-24 10:28:50
Authors: George Rajna
Comments: 34 Pages.
This pioneering work on neuromorphic electronic circuits inspired researchers in Germany and Switzerland to explore the possibility of reproducing the physics of real neural circuits by using the physics of silicon. [22]
A computer built to mimic the brain's neural networks produces similar results to that of the best brain-simulation supercomputer software currently used for neural-signaling research, finds a new study published in the open-access journal Frontiers in Neuroscience. [21]
Category: Digital Signal Processing
[3] viXra:2003.0242 [pdf] submitted on 2020-03-12 11:50:09
Authors: George Rajna
Comments: 64 Pages.
A team of researchers from ETH Zurich and the Paul Scherrer Institute has developed a way to build an all-electric magnetic logic gate. [40]
Novel insight comes now from experiments and simulations performed by a team led by ETH physicists who have studied electronic transport properties in a one-dimensional quantum wire containing a mesoscopic lattice. [39]
Femtosecond lasers are capable of processing any solid material with high quality and high precision using their ultrafast and ultra-intense characteristics. [38]
Category: Digital Signal Processing
[2] viXra:2003.0200 [pdf] submitted on 2020-03-10 08:31:12
Authors: George Rajna
Comments: 22 Pages.
EPFL physicist László Forró and his team pave the way for the future of data storage. [16] Researchers from the University of Toronto Engineering and King Abdullah University of Science and Technology (KAUST) have overcome a key obstacle in combining the emerging solar-harvesting technology of perovskites with the commercial gold standard-silicon solar cells. [15] Researchers from the Theory Department of the MPSD in Hamburg and North Carolina State University in the US have demonstrated that the long-sought magnetic Weyl semi-metallic state can be induced by ultrafast laser pulses in a three-dimensional class of magnetic materials dubbed pyrochlore iridates. [14] At TU Wien recently, particles known as 'Weyl fermions' were discovered in materials with strong interaction between electrons. Just like light particles, they have no mass but nonetheless they move extremely slowly. [13] Quantum behavior plays a crucial role in novel and emergent material properties, such as superconductivity and magnetism. [12] A source of single photons that meets three important criteria for use in quantum information systems has been unveiled in China by an international team of physicists. Based on a quantum dot, the device is an efficient source of photons that emerge as solo particles that are indistinguishable from each other. The researchers are now trying to use the source to create a quantum computer based on "boson sampling". [11] With the help of a semiconductor quantum dot, physicists at the University of Basel have developed a new type of light source that emits single photons. For the first time, the researchers have managed to create a stream of identical photons. [10] Optical photons would be ideal carriers to transfer quantum information over large distances. Researchers envisage a network where information is processed in certain nodes and transferred between them via photons. [9] While physicists are continually looking for ways to unify the theory of relativity, which describes large-scale phenomena, with quantum theory, which describes small-scale phenomena, computer scientists are searching for technologies to build the quantum computer using Quantum Information. In August 2013, the achievement of "fully deterministic" quantum teleportation, using a hybrid technique, was reported. On 29 May 2014, scientists announced a reliable way of transferring data by quantum teleportation. Quantum teleportation of data had been done before but with highly unreliable methods. The accelerating electrons explain not only the Maxwell Equations and the Special Relativity, but the Heisenberg Uncertainty Relation, the Wave-Particle Duality and the electron's spin also, building the Bridge between the Classical and Quantum Theories. The Planck Distribution Law of the electromagnetic oscillators explains the electron/proton mass rate and the Weak and Strong Interactions by the diffraction patterns. The Weak Interaction changes the diffraction patterns by moving the electric charge from one side to the other side of the diffraction pattern, which violates the CP and Time reversal symmetry. The diffraction patterns and the locality of the self-maintaining electromagnetic potential explains also the Quantum Entanglement, giving it as a natural part of the Relativistic Quantum Theory and making possible to build the Quantum Computer with the help of Quantum Information.
Category: Digital Signal Processing
[1] viXra:2003.0069 [pdf] submitted on 2020-03-03 16:22:29
Authors: Robert H. McEachern
Comments: 15 Pages.
This paper presents a model of the human auditory system's front-end signal processing. The model is biologically plausible and provides simple explanations for a wide variety of psychoacoustic effects. It is proposed that the auditory system evolved as a threat-warning receiver, long before the development of speech. This threat-warning receiver was subsequently expropriated for use as a communications receiver. It functions primarily as an AM and FM, multi-tone demodulator. FM information is derived from the AM in a manner similar to that by which the eye derives color information. Many of the peculiar characteristics of speech signaling evolved in response to the problems encountered while attempting to use this demodulator to process information transmitted through communication channels exhibiting high-levels of both multi-path and multi-source interference. Similar problems are encountered in designing communications systems that exploit high-frequency (HF) ionospheric channels. It is not surprising then, that many analogies exist between the structure of speech signals and certain types of HF modem signals. It is proposed that these analogies are not coincidental; they reflect a common set of solutions to a common set of problems. Computer simulations have confirmed that good quality speech can be reconstructed from the model's outputs; the model may be thought of as a special form of a harmonic speech coder, designed for use in high noise/interference environments.
Category: Digital Signal Processing
| Third-Party Links: |
|