scholarly journals Chaos in the Real World: Recent Applications to Communications, Computing, Distributed Sensing, Robotic Motion, Bio-Impedance Modelling and Encryption Systems

Symmetry ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 2151
Author(s):  
Giuseppe Grassi
Keyword(s):  
Real World ◽  
Hardware Implementation ◽  
Chaotic Systems ◽  
Random Number ◽  
Random Number Generation ◽  
Distributed Sensing ◽  
The Real ◽  
Symmetry Properties ◽  
Robotic Motion ◽  
Potential Applications

Most of the papers published so far in literature have focused on the theoretical phenomena underlying the formation of chaos, rather than on the investigation of potential applications of chaos to the real world. This paper aims to bridge the gap between chaos theory and chaos applications by presenting a survey of very recent applications of chaos. In particular, the manuscript covers the last three years by describing different applications of chaos as reported in the literature published during the years 2018 to 2020, including the matter related to the symmetry properties of chaotic systems. The topics covered herein include applications of chaos to communications, to distributed sensing, to robotic motion, to bio-impedance modelling, to hardware implementation of encryption systems, to computing and to random number generation.

scholarly journals Numerical Approaches to Fractional Integrals and Derivatives: A Review

Mathematics ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 43 ◽  
Author(s):  
Min Cai ◽  
Changpin Li
Keyword(s):  
Fractional Calculus ◽  
Real World ◽  
Mathematical Concept ◽  
Fractional Integrals ◽  
Numerical Approximations ◽  
The Real ◽  
Potential Applications ◽  
Fractional Integrals And Derivatives ◽  
Almost All ◽  
Numerical Approaches

Fractional calculus, albeit a synonym of fractional integrals and derivatives which have two main characteristics—singularity and nonlocality—has attracted increasing interest due to its potential applications in the real world. This mathematical concept reveals underlying principles that govern the behavior of nature. The present paper focuses on numerical approximations to fractional integrals and derivatives. Almost all the results in this respect are included. Existing results, along with some remarks are summarized for the applied scientists and engineering community of fractional calculus.

NaviCam:A Magnifying Glass Approach to Augmented Reality

1997 ◽  
Vol 6 (4) ◽  
pp. 399-412 ◽  
Author(s):  
Jun Rekimoto
Keyword(s):  
Augmented Reality ◽  
Real World ◽  
Video Camera ◽  
Display Device ◽  
Daily Lives ◽  
The Real ◽  
Video Images ◽  
Potential Applications ◽  
Subjective Score ◽  
Tracking Devices

Current augmented reality (AR) systems are not designed to be used in our daily lives. Head-mounted see-through displays are too cumbersome and look too unusual for everyday life. The limited scalability of position-tracking devices limits the use of AR to very restricted environments. This paper proposes a different way to realize AR that can be used in an open environment by introducing the concept of ID awareness and a hand-held video see-through display. Unlike other AR systems that use head-mounted or head-up displays, our approach employs the combination of a palmtop-sized display and a small video camera. A user sees the real world through the display device, with added computer-augmented information. We call this configuration the magnifying glass approach. It has several advantages over traditional head-up or head-mounted configurations. The main advantage is that the user is not required to wear any cumbersome headgear. The user can easily move the display device around like a magnifying glass and compare real and augmented images. The video camera also obtains information related to real-world situations. The system recognizes real-world objects using the video images by reading identification (ID) tags. Based on the recognized ID tag, the system retrieves and displays information about the real-world object to the user. The prototype hand-held device based on our proposed concept is called NaviCam. We describe several potential applications. Our experiments with NaviCam show the great potential of our video see-through palmtop display. It was significantly faster than a head-up configuration, and its subjective score from testers was also higher.

scholarly journals Massively parallel ultrafast random bit generation with a chip-scale laser

Science ◽  
2021 ◽  
Vol 371 (6532) ◽  
pp. 948-952 ◽  
Author(s):  
Kyungduk Kim ◽  
Stefan Bittner ◽  
Yongquan Zeng ◽  
Stefano Guazzotti ◽  
Ortwin Hess ◽  
...  
Keyword(s):  
Energy Efficient ◽  
Secure Communication ◽  
High Performance ◽  
Random Number ◽  
Random Number Generation ◽  
Massively Parallel ◽  
Stochastic Noise ◽  
Potential Applications ◽  
Lasing Modes ◽  
High Performance Computation

Random numbers are widely used for information security, cryptography, stochastic modeling, and quantum simulations. Key technical challenges for physical random number generation are speed and scalability. We demonstrate a method for ultrafast generation of hundreds of random bit streams in parallel with a single laser diode. Spatiotemporal interference of many lasing modes in a specially designed cavity is introduced as a scheme for greatly accelerated random bit generation. Spontaneous emission, caused by quantum fluctuations, produces stochastic noise that makes the bit streams unpredictable. We achieve a total bit rate of 250 terabits per second with off-line postprocessing, which is more than two orders of magnitude higher than the current postprocessing record. Our approach is robust, compact, and energy-efficient, with potential applications in secure communication and high-performance computation.

Current Issues: Evidence-Based Practice for the Real World: Thoughts on Clinical Education in Communication Disorders

2010 ◽  
Vol 20 (3) ◽  
pp. 100-105 ◽  
Author(s):  
Anne K. Bothe
Keyword(s):  
Clinical Education ◽  
Real World ◽  
Evidence Based Practice ◽  
Communication Disorders ◽  
University Faculty ◽  
Evidence Based ◽  
Speech Language Pathology ◽  
Basic Principles ◽  
The Real ◽  
Language Pathology

This article presents some streamlined and intentionally oversimplified ideas about educating future communication disorders professionals to use some of the most basic principles of evidence-based practice. Working from a popular five-step approach, modifications are suggested that may make the ideas more accessible, and therefore more useful, for university faculty, other supervisors, and future professionals in speech-language pathology, audiology, and related fields.

The Real-World Fellowship

2006 ◽  
Vol 40 (7) ◽  
pp. 47
Author(s):  
LEE SAVIO BEERS
Keyword(s):  
Real World ◽  
The Real

Contracts in the Real World

2016 ◽  
Author(s):  
Lawrence A. Cunningham
Keyword(s):  
Real World ◽  
The Real
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