EMBODIED COMPUTATION: APPLYING THE PHYSICS OF COMPUTATION TO ARTIFICIAL MORPHOGENESIS

2012 ◽  
Vol 22 (03) ◽  
pp. 1240013 ◽  
Author(s):  
BRUCE J. MACLENNAN
Keyword(s):  
Practical Application ◽  
Physical Processes ◽  
Simple Diffusion ◽  
Physical Systems ◽  
Allosteric Proteins ◽  
Physics Of Computation ◽  
Physical Effects ◽  
Simple Spine

We discuss the problem of assembling complex physical systems that are structured from the nanoscale up through the macroscale, and argue that embryological morphogenesis provides a good model of how this can be accomplished. Morphogenesis (whether natural or artificial) is an example of embodied computation, which exploits physical processes for computational ends, or performs computations for their physical effects. Examples of embodied computation in natural morphogenesis can be found at many levels, from allosteric proteins, which perform simple embodied computations, up through cells, which act to create tissues with specific patterns, compositions, and forms. We outline a notation for describing morphogenetic programs and illustrate its use with two examples: simple diffusion and the assembly of a simple spine with attachment points for legs. While much research remains to be done — at the simulation level before we attempt physical implementations — our results to date show how we may implement the fundamental processes of morphogenesis as a practical application of embodied computation at the nano- and microscale.

Parapsychology

2018 ◽  
Author(s):  
Allen Stairs
Keyword(s):  
Physical Environment ◽  
Experimental Methods ◽  
Physical Processes ◽  
Physical Explanation ◽  
Scientific Methods ◽  
Extrasensory Perception ◽  
Physical Effects ◽  
Psi Phenomena

Tales of dreams that come true, ‘mind over matter’ and other such oddities are both familiar and old. Parapsychology investigates such things, attempting to use scientific and, especially, experimental methods to investigate whether and in what circumstances humans can glean information without using ordinary perceptual means (that is, by extrasensory perception or ESP) or can alter the physical environment simply by willing it (that is, by psychokinesis). Such phenomena, if they exist, are often grouped under the heading psi(-phenomena). It is sometimes claimed that parapsychology presents a challenge to physicalism. However, ostensible psi-phenomena are known through their physical effects and are studied within parapsychology by ordinary scientific methods. In fact, models intended to explain psi-phenomena by known physical processes have been seriously discussed within parapsychology. In any case, parapsychology alone could not show that psi-phenomena have no physical explanation; that is a judgment for physics itself. More important, physicalism is a very broad doctrine that should not simply be equated with the requirement that everything be explained within physics. It is very unclear what we would gain by denying that psi-phenomena are physical.

Direct Digital Additive Manufacturing and Cyber-Enabled Manufacturing Systems

2012 ◽  
Author(s):  
Khershed P. Cooper
Keyword(s):  
Additive Manufacturing ◽  
Manufacturing Systems ◽  
Complex Geometry ◽  
Basic Research ◽  
Naval Research ◽  
Physical Processes ◽  
Physical Systems ◽  
Office Of Naval Research ◽  
And Control ◽  
Manufacturing Problems

The technology of direct digital additive manufacturing (D2AM) has received considerable attention in recent months. Several government agencies and commercial interests are planning to explore D2AM to find solutions to manufacturing problems. The attraction of D2AM is the benefit of rapidly producing without fixtures or tools or human intervention customized objects of complex geometry not possible by traditional methods. The interest in D2AM ranges from fabrication of critical, high value aerospace metallic components to fabrication of objects having an organic look or as nature would have intendedi. For D2AM to be commercially accepted, it must reliably and predictably make products. It must achieve consistency in reproducibility across relevant D2AM methods. The Office of Naval Research (ONR) has launched a new basic research program, known as Cyber-enabled Manufacturing Systems (CeMS). The long-range goal of the program is to achieve the level of control over D2AM processes for industrial acceptance and wide-use of the technology. This program will develop measuring, sensing and control models and algorithms for D2AM by harnessing principles underpinning cyber-physical systems (CPS) and fundamentals of physical processes. This paper describes the challenges facing D2AM and the CeMS program goals to meet them.

scholarly journals Exclusion and Underdetermined Qualia

Entropy ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 405 ◽  
Author(s):  
Kyumin Moon
Keyword(s):  
Information Theory ◽  
Theoretical Foundation ◽  
Practical Application ◽  
Scientific Content ◽  
Physical Systems ◽  
Theoretical Structure ◽  
The Relationship ◽  
Integrated Information Theory ◽  
Integrated Information

Integrated information theory (IIT) asserts that both the level and the quality of consciousness can be explained by the ability of physical systems to integrate information. Although the scientific content and empirical prospects of IIT have attracted interest, this paper focuses on another aspect of IIT, its unique theoretical structure, which relates the phenomenological axioms with the ontological postulates. In particular, the relationship between the exclusion axiom and the exclusion postulate is unclear. Moreover, the exclusion postulate leads to a serious problem in IIT: the quale underdetermination problem. Therefore, in this paper, I will explore answers to the following three questions: (1) how does the exclusion axiom lead to the exclusion postulate? (2) How does the exclusion postulate cause the qualia underdetermination problem? (3) Is there a solution to this problem? I will provide proposals and arguments for each question. If successful, IIT can be confirmed with respect to, not only its theoretical foundation, but also its practical application.

Remote Robot-Sensor Calibration Service

2019 ◽  
Vol 10 (1) ◽  
pp. 15-36
Author(s):  
Tapio Heikkilä ◽  
Tuomas Seppälä ◽  
Timo Kuula ◽  
Hannu Karvonen
Keyword(s):  
User Interface ◽  
Asset Management ◽  
Interface Design ◽  
User Interface Design ◽  
Calibration Procedure ◽  
Sensor Calibration ◽  
Physical Processes ◽  
Physical Systems ◽  
Robot Systems ◽  
Technology Specialists

Cyber physical systems (CPSs) are integrating computation, networking, and physical processes. CPSs facilitate improvements especially for asset management. The authors have contributed to robot automation with CPS technologies by a pilot system to support setup and maintenance of sensor-based robot systems with remote calibration services. This paper has focused to support remotely-located technology specialists as well as local field personnel by appropriate user interface design. A design example is given for a remote robot-sensor calibration procedure. In the user interface design, the authors follow loosely the Ecological Interface Design (EID) approach.

scholarly journals Architectures and Protocols for Wireless Sensor and Actuator Networks

2021 ◽  
Vol 10 (3) ◽  
pp. 52
Author(s):  
Piergiuseppe Di Marco ◽  
Pangun Park
Keyword(s):  
Internet Of Things ◽  
Wireless Networking ◽  
Cyber Physical Systems ◽  
Wireless Sensor ◽  
Physical Processes ◽  
Physical Systems ◽  
Recent Advances ◽  
And Control

Recent advances in wireless networking, sensing, computing, and control are revolutionizing how physical systems interact with information and physical processes such as Cyber-Physical Systems (CPS), Internet of Things (IoT), and Tactile Internet. [...]

scholarly journals SNPL: One Scheme of Securing Nodes in IoT Perception Layer

Sensors ◽  
2020 ◽  
Vol 20 (4) ◽  
pp. 1090 ◽  
Author(s):  
Yongkai Fan ◽  
Guanqun Zhao ◽  
Kuan-Ching Li ◽  
Bin Zhang ◽  
Gang Tan ◽  
...  
Keyword(s):  
Cyber Physical Systems ◽  
Security Risk ◽  
Practical Application ◽  
Malicious Nodes ◽  
Physical Systems ◽  
Security Scheme ◽  
Performance Requirements ◽  
Different Types ◽  
Series Of Experiments ◽  
And Performance

The trustworthiness of data is vital data analysis in the age of big data. In cyber-physical systems, most data is collected by sensors. With the increase of sensors as Internet of Things (IoT) nodes in the network, the security risk of data tampering, unauthorized access, false identify, and others are overgrowing because of vulnerable nodes, which leads to the great economic and social loss. This paper proposes a security scheme, Securing Nodes in IoT Perception Layer (SNPL), for protecting nodes in the perception layer. The SNPL is constructed by novel lightweight algorithms to ensure security and satisfy performance requirements, as well as safety technologies to provide security isolation for sensitive operations. A series of experiments with different types and numbers of nodes are presented. Experimental results and performance analysis show that SNPL is efficient and effective at protecting IoT from faulty or malicious nodes. Some potential practical application scenarios are also discussed to motivate the implementation of the proposed scheme in the real world.

Characteristic Analyzation of Cyber Physical Systems

2014 ◽  
Vol 484-485 ◽  
pp. 427-430
Author(s):  
Zhe Jun Kuang ◽  
Liang Hu ◽  
Chen Zhang
Keyword(s):  
Real Time ◽  
Heterogeneous Systems ◽  
Physical World ◽  
Cyber Physical Systems ◽  
Physical Processes ◽  
Physical Systems ◽  
Time Performance ◽  
Research Challenges ◽  
Computer Mediated ◽  
And Control

Cyber-physical systems (CPS) are complex distributed heterogeneous systems which integrating cyber and physical processes by computation, communication and control. During interaction between cyber and physical world, the traditional theories and applications has been difficult to satisfy real-time performance and efficient. Cyber-physical systems clearly have a role to play in developing a new theory of computer-mediated physical systems. The aim of this work is to analysis the features and relation technology of CPS that get better understanding for this new field. We summarized the research progresses from different perspectives such as modeling, classical tools and applications. Finally, the research challenges for CPS are in brief outlined.

scholarly journals A Nonlocal Fractional Peridynamic Diffusion Model

2021 ◽  
Vol 5 (3) ◽  
pp. 76
Author(s):  
Yuanyuan Wang ◽  
HongGuang Sun ◽  
Siyuan Fan ◽  
Yan Gu ◽  
Xiangnan Yu
Keyword(s):  
Differential Operator ◽  
Fractional Derivative ◽  
Diffusion Model ◽  
Kernel Function ◽  
Main Idea ◽  
Operator Method ◽  
Taylor Series Expansion ◽  
Physical Processes ◽  
Physical Systems ◽  
Lagrange Formula

This paper proposes a nonlocal fractional peridynamic (FPD) model to characterize the nonlocality of physical processes or systems, based on analysis with the fractional derivative model (FDM) and the peridynamic (PD) model. The main idea is to use the fractional Euler–Lagrange formula to establish a peridynamic anomalous diffusion model, in which the classical exponential kernel function is replaced by using a power-law kernel function. Fractional Taylor series expansion was used to construct a fractional peridynamic differential operator method to complete the above model. To explore the properties of the FPD model, the FDM, the PD model and the FPD model are dissected via numerical analysis on a diffusion process in complex media. The FPD model provides a generalized model connecting a local model and a nonlocal model for physical systems. The fractional peridynamic differential operator (FPDDO) method provides a simple and efficient numerical method for solving fractional derivative equations.

scholarly journals Matter-Antimatter Separation and the Antimatter Problem in Cosmology

1974 ◽  
Vol 53 ◽  
pp. 301-317
Author(s):  
R. Omnès
Keyword(s):  
Present State ◽  
Physical Processes ◽  
Physical Effects ◽  
Work Done ◽  
The Universe

I shall report on some work done in France in the last few years concerning the possible existence of antimatter in the Universe. It will be shown that, by taking due account of several physical effects which have been theoretically predicted, one can propose a coherent theory for the origin of matter and galaxies that appears to be quantitatively satisfactory. In this model there should exist as many antigalaxies as galaxies. During the course of this paper, I shall try to make it clear what the basic physical processes are and the present state of their investigation. This discussion will therefore be restricted to the two aforementioned problems, viz., the origin of matter and protogalaxies, leaving aside other astrophysical applications.

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