Miraculous Agitations: On the Uses of Chaotic, Non-Linear and Emergent Behavior in Acoustic Vibrating Physical Systems

2012 ◽  
Vol 22 ◽  
pp. 35-40 ◽  
Author(s):  
Daniel Wilson
Keyword(s):  
Music Composition ◽  
Nonlinear Behavior ◽  
Qualitative Approach ◽  
Emergent Behavior ◽  
New Music ◽  
Physical Systems ◽  
Non Linear ◽  
Subjective Phenomenon

“Miraculous agitation” denotes an acoustic marvel: a striking sound emerging from vibrating physical systems. A somewhat subjective phenomenon, acoustic marvels are typified by expressive or harmonic richness, and their production is reliant on delicate interrelationships between objects under vibration, often involving chaotic or nonlinear behavior. In some cases it is even possible to observe emergent behavior. Significantly, acoustic marvels may commonly strike the auditor as seeming to be “of electronic origin,” thus pointing toward postelectronic electroacoustic techniques. This paper takes a qualitative approach to the examination of such acoustic marvels and their possible applications in new music composition.

scholarly journals Forms, Development and The Application of Music Media in The Kindergartens: A Comparative Study of Two Kindergartens

2015 ◽  
Vol 15 (2) ◽  
Author(s):  
Totok Sumaryanto F. ◽  
Udi Utomo
Keyword(s):  
Comparative Study ◽  
Extracurricular Activities ◽  
Learning Process ◽  
Data Reduction ◽  
Music Composition ◽  
Teaching And Learning ◽  
Data Interpretation ◽  
Qualitative Approach ◽  
Electronic Equipment ◽  
New Music

<p>This study was aimed at investigating the form of music media employed in the teaching and learning process (TLP) in the kindergartens, and the teachers’ effort to develop and apply music media in the TLP. The researchers used a qualitative approach. The research was conducted in TK Hj. Isriati Baiturahman and TK Negeri Pembina Semarang. The subjects of the study were principals, teachers, staffs and students. In collecting the data, the researchers used three different techniques: interview, observation and documentation. Then, the researchers used data reduction, categorization and data interpretation to analyse the data. The result shows that the teachers in both schools have utilized varied music media in the TLP. In TK Hj. Isriati, the teachers used music media in the form of music composition and electronic equipment; and the new music instruments were used by the teachers in extracurricular activities. Meanwhile, the teachers in TK Negeri Pembina utilized music media including music composition, music instruments and electronic equipment. The development of music media by the teachers was done by modifying lyrics, composing simple songs, utilizing rhitmical music instruments and employing electronic equipment in the TLP.</p>

Models of decision support in socio-cyber-physical systems

2019 ◽  
pp. 55-70 ◽  
Author(s):  
A. V. Smirnov ◽  
T. V. Levashova
Keyword(s):  
Decision Making ◽  
Decision Support ◽  
Situation Awareness ◽  
Cyber Physical Systems ◽  
Emergent Behavior ◽  
Emergent Properties ◽  
Decision Making Process ◽  
Physical Systems ◽  
Decision Support Models ◽  
Common Goals

Introduction: Socio-cyber-physical systems are complex non-linear systems. Such systems display emergent properties. Involvement of humans, as a part of these systems, in the decision-making process contributes to overcoming the consequences of the emergent system behavior, since people can use their experience and intuition, not just the programmed rules and procedures.Purpose: Development of models for decision support in socio-cyber-physical systems.Results: A scheme of decision making in socio-cyber-physical systems, a conceptual framework of decision support in these systems, and stepwise decision support models have been developed. The decision-making scheme is that cybernetic components make their decisions first, and if they cannot do this, they ask humans for help. The stepwise models support the decisions made by components of socio-cyber-physical systems at the conventional stages of the decision-making process: situation awareness, problem identification, development of alternatives, choice of a preferred alternative, and decision implementation. The application of the developed models is illustrated through a scenario for planning the execution of a common task for robots.Practical relevance: The developed models enable you to design plans on solving tasks common for system components or on achievement of common goals, and to implement these plans. The models contribute to overcoming the consequences of the emergent behavior of socio-cyber-physical systems, and to the research on machine learning and mobile robot control.

ISUM: Its Birth, Growth and Future

2016 ◽  
Author(s):  
Sherif Rashed
Keyword(s):  
Nonlinear Behavior ◽  
Impact Loads ◽  
Coarse Mesh ◽  
Structural Units ◽  
Large Size ◽  
Linear Behavior ◽  
Large Ship ◽  
Non Linear ◽  
Recent Developments ◽  
Future Potential

ISUM (The Idealized Structural Unit Method) was born in 1972 to efficiently and accurately analyze the behavior of large size structures up to and beyond their ultimate strength. In this method a structure is divided into large elements, basically its structural units (members). Geometric and material non-linear behavior inside the element is formulated and expressed at a limited number of nodal points at the element boundaries. In this way a large structure can be modeled using a coarse mesh while still being able to consider the nonlinear behavior until the collapse of the structure. Several ISUM elements have been formulated and used to analyze the non-linear behavior of large ship structures. In further developments, more elements with more accurate formulations have been developed and more types of structures have been analyzed using this method. The same ISUM concept has been applied to the analysis of welding deformation of large welded structures and to failure analysis of structural and mechanical components subjected to impact loads. In this paper, the basic ISUM concept is outlined, and several elements are presented. Examples of applications to ships and marine structures are presented demonstrating the effectiveness of the method. Recent developments are also reviewed and future potential is explored.

Development of electronic music in Ukraine: emergence of a research methodology

2007 ◽  
Vol 12 (2) ◽  
pp. 153-165 ◽  
Author(s):  
Alla Zagaykevych ◽  
Ivan Zavada
Keyword(s):  
Research Methodology ◽  
Electronic Music ◽  
Cultural Context ◽  
Music Composition ◽  
Current Situation ◽  
New Music ◽  
Music Practice ◽  
New Methods ◽  
Musical Systems

AbstractIn this article the authors present an overview of the current situation in Ukraine, with regards to the question of analytical terminology applied to new methods of creation in electronic music composition. The article establishes the differences and the similarities between the analyses of instrumental and electronic music structures, while considering the role of technology in the creation of new electronic music works. This paper also establishes a link between the origin of current analytical processes and electronic music practice in Ukraine, taking into account the function of a given terminology and its characteristic elements relating to a local geographical and cultural context. The authors underline the importance of integrating new music forms in academic circles and discuss external influences in the development of new musical systems. This is demonstrated by exposing selected musical materials, which can be considered representative of the creative and theoretical processes found in the field of electronic music in Ukraine.

scholarly journals ISSUES IN THE RELATIONSHIPS AMONG BALINESE POP MUSIC, TOURISTS, AND THE TOURISM INDUSTRY

2018 ◽  
Vol 2 (1) ◽  
pp. 80
Author(s):  
Ni Wayan Ardini ◽  
Ni Nyoman Sri Astuti ◽  
I Komang Darmayuda ◽  
Ni Luh Eka Armoni ◽  
Ketut Sumerjana
Keyword(s):  
Music Composition ◽  
Traditional Music ◽  
Local Communities ◽  
Tourism Industry ◽  
Qualitative Approach ◽  
Pop Music ◽  
Literature Study ◽  
Tourist Destination ◽  
Modern Music ◽  
Number Of Factors

Province of Bali, Indonesia, is growing very rapidly as a tourist destination in recent decades. Currently five to six million foreign tourists visit it every year. On the other hand, Balinese pop music has also grown quite intense in the local communities, especially since the 1990s. Nevertheless, so far, there has not been a significant relationship between Balinese pop music, tourists, and the tourism businesses in this province. Balinese pop music has not been a special product of Bali tourism. This research was conducted to explore and criticize a number of factors that led to the lack of acceptance of the music as part of tourism industry. This literature study was conducted with a descriptive-qualitative approach. The results of the study show that the similarity of Balinese pop music genres to modern music in general is one of the factors. Taste of the tourists, the destinations chosen, lack of promotion, theme of the songs/music, composition, and language used in the lyrics cause the fact that Balinese pop music is less accepted by tourists, especially foreign tourists. It takes certain efforts from artists (musicians), music industry and tourism industries, and also governments to make certain concerted efforts if Balinese pop music wants to be accepted in a tourism business parallel to traditional music products which are already consumed by tourists.

Functional verification of cyber-physical systems containing machine-learnt components

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Farzaneh Moradkhani ◽  
Martin Fränzle
Keyword(s):  
Neural Network ◽  
Machine Learning ◽  
Neural Networks ◽  
Cyber Physical Systems ◽  
Satisfiability Modulo Theories ◽  
Activation Functions ◽  
Physical Systems ◽  
Smt Solvers ◽  
Non Linear ◽  
Artificial Neural

Abstract Functional architectures of cyber-physical systems increasingly comprise components that are generated by training and machine learning rather than by more traditional engineering approaches, as necessary in safety-critical application domains, poses various unsolved challenges. Commonly used computational structures underlying machine learning, like deep neural networks, still lack scalable automatic verification support. Due to size, non-linearity, and non-convexity, neural network verification is a challenge to state-of-art Mixed Integer linear programming (MILP) solvers and satisfiability modulo theories (SMT) solvers [2], [3]. In this research, we focus on artificial neural network with activation functions beyond the Rectified Linear Unit (ReLU). We are thus leaving the area of piecewise linear function supported by the majority of SMT solvers and specialized solvers for Artificial Neural Networks (ANNs), the successful like Reluplex solver [1]. A major part of this research is using the SMT solver iSAT [4] which aims at solving complex Boolean combinations of linear and non-linear constraint formulas (including transcendental functions), and therefore is suitable to verify the safety properties of a specific kind of neural network known as Multi-Layer Perceptron (MLP) which contain non-linear activation functions.

Nonlinear Vibrations and Instability of Shallow Pyramidal Trusses

2015 ◽  
Author(s):  
Carlos Henrique L. de Castro ◽  
Paulo B. Gonçalves ◽  
Diego Orlando
Keyword(s):  
Carbon Nanostructures ◽  
Nonlinear Vibrations ◽  
Nonlinear Behavior ◽  
Basins Of Attraction ◽  
Dynamic Loads ◽  
Phase Portraits ◽  
Major Influence ◽  
Non Linear ◽  
Static And Dynamic Loads ◽  
Von Mises

Pyramidal space trusses are a basic component of several structures, from carbon nanostructures to large geodesic domes. These structures, such as the classical Von Mises truss, have a highly non-linear response in the presence of static and dynamic loads. The geometric nonlinearity is particularly significant, even at low load levels when these structures are shallow, that is, has a small height to base ratio. This paper presents an exact non-linear formulation for a shallow pyramidal truss composed of n equally spaced bars. Based on this formulation, the loss of stability and nonlinear vibrations of these structures under static and dynamic loads is analyzed. To understand its nonlinear behavior, time responses, phase portraits, bifurcation diagrams, energy profiles and basins of attraction are obtained. The results highlight the complex nonlinear dynamics of this class of structures and its major influence in design.

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