scholarly journals Performing Analysis, Performing Metal

2021 ◽  
Vol 27 (4) ◽  
Author(s):  
Olivia R. Lucas

Light shows at contemporary rock concerts generally create an immersive, multi-sensory experience. In their most sophisticated forms, however, they provide a visual analysis of the music as it unfolds. This paper presents a case study of what I call the analytical light show, by examining how the intricate light shows of extreme metal band Meshuggah contribute an interpretive layer that not only promotes multi-sensory engagement, but also actively guides listeners through songs’ formal structures. Meshuggah’s light shows, created by lighting designer Edvard Hansson, are exhaustively synchronized to the rhythmic patterns of the guitars and drums. Meticulous use of color, brightness, directionality, placement pattern, and beam movement provide additional information about gesture, articulation, and pitch. These analytical light shows provide a three-dimensional visual score that dramatizes rhythms while guiding listeners through each riff. Through this lighting, spatial and bodily metaphors of musical movement—high and low, moving and holding still—are transmuted into visual representation. By presenting analysis and performance simultaneously and as each other, Meshuggah combines technical virtuosity with rock authenticity, and provides another example of what I have called “coercive synesthesia” (Lucas 2014), as the lighting becomes an inextricable part of the musical experience. Beyond the confines of metal culture, I study the analytical light show as an expression of vernacular musical analysis that combines specific analytical and technical expertise with the intuitive, embodied knowledge that experienced music listeners possess.

Author(s):  
Jane W. Davidson

This article explores the fundamental role of bodily movement in the development of musical knowledge and performance skills; in particular, how the body can be used to understand expressive musical material and to communicate that meaning to coperformers and audience. The relevance to the educator is explored (whether working with a child or adult beginner, or a more advanced learner). The article is divided into six main sections, tracing the role of body movement skill in music production, expressive musical performance, developing learners to play their musical instruments with technical and expressive appropriateness, coperformer coordination, and projection for audience perception. The work builds on a growing interest in the embodied nature of musical experience. The article concludes with case study observations of practical insights and applications for the teacher.


2019 ◽  
Vol 13 (3) ◽  
Author(s):  
Tomás A. Georgiou ◽  
Davide Asnaghi ◽  
Alva Liang ◽  
Alice M. Agogino

This paper describes the development and testing of a low-cost three-dimensional (3D) printed wearable hand exoskeleton to assist people with limited finger mobility and grip strength. The function of the presented orthosis is to support and enable light intensity activities of daily living and improve the ability to grasp and hold objects. The Sparthan Exoskeleton prototype utilizes a cable-driven design applied to individual digits with motors. The initial prototype is presented in this paper along with a preliminary evaluation of durability and performance efficacy.


2019 ◽  
Vol 20 (2) ◽  
pp. 89
Author(s):  
Gede A Widyadana ◽  
Audrey Tedja Widjaja ◽  
Kun Jen Wang

A single container loading problem is a problem to effectively load boxes in a three-dimensional container. There are many researchers in this problem try to find the best solution to solve the problem with feasible computation time and to develop some models to solve real case problem. Heuristics are the most method used to solve this problem since the problem is an NP-hard. In this paper, we introduce a hybrid greedy algorithm and simulate annealing algorithm to solve a real container loading problem in one flexible packaging company in Indonesia. Validation is used to show that the method can be applied practically. We use seven real cases to check the validity and performance of the model. The proposed method outperformed the solution developed by the company in all seven cases with feasible computational time.


2012 ◽  
Vol 20 (04) ◽  
pp. 1250021 ◽  
Author(s):  
LOUIS KOVALEVSKY ◽  
PIERRE LADEVÈZE ◽  
HERVÉ RIOU ◽  
MARC BONNET

This paper proposes an extension of the variational theory of complex rays (VTCR) to three-dimensional linear acoustics, The VTCR is a Trefftz-type approach designed for mid-frequency range problems and has been previously investigated for structural dynamics and 2D acoustics. The proposed 3D formulation is based on a discretization of the amplitude portrait using spherical harmonics expansions. This choice of discretization allows to substantially reduce the numerical integration work by taking advantage of well-known analytical properties of the spherical harmonics. It also permits (like with the previous 2D Fourier version) an effective a priori selection method for the discretization parameter in each sub-region, and allows to estimate the directivity of the pressure field by means of a natural definition of rescaled amplitude portraits. The accuracy and performance of the proposed formulation are demonstrated on a set of numerical examples that include results on an actual case study from the automotive industry.


Author(s):  
John Eddy ◽  
Kemper E. Lewis

As our ability to generate more and more data for increasingly large engineering models improves, the need for methods for managing that data becomes greater. Information management from a decision-making perspective involves being able to capture and represent significant information to a designer so that they can make effective and efficient decisions. However, most visualization techniques used in engineering, such as graphs and charts, are limited to two-dimensional representations and at most three-dimensional representations. In this paper, we present a new visualization technique to capture and represent engineering information in a multidimensional context. The new technique, Cloud Visualization, is based upon representing sets of points as clouds in both the design and performance spaces. The technique is applicable to both single and multiobjective optimization problems and the relevant issues with each type of problem are discussed. A multiobjective case study is presented to demonstrate the application and usefulness of the Cloud Visualization techniques.


2019 ◽  
Vol 3 (1) ◽  
pp. 100-116
Author(s):  
Adam Rabinowitz

After excavating the Praedia of Iulia Felix at Pompeii in 1755, architect Karl Weber published the building with an axionometric illustration that showed the remains in three-dimensional perspective. In doing so, Weber communicated additional information about the form of the building in a manner that was both visually accessible to a lay audience and sufficiently “scientific” for a scholarly one. By contrast, digital 3D documentation methods in current archaeological practice can reinforce a division between “scientific” models intended for internal consumption by the project that produces them, and external communication in the form of lower-quality online digital displays. Using recent fieldwork at the Greek colonial site of Histria in Romania as a case-study, this paper explores the space between high-resolution contextualized 3D documentation used only by an internal audience and down-scaled, decontextualized 3D content designed for public consumption. In particular, it explores whether measurable 3D models derived from photogrammetrical capture are useful in communicating excavation results to non-specialists – and if so, in what ways. It presents several scenarios for the role of high-quality 3D documentation in both formal and informal scholarly communication, and discusses the potential for the reuse of such documentation to answer new research questions.


2019 ◽  
pp. 45-51
Author(s):  
Uliana Yu. Solopakhina

In recent years, there has been a downward trend in easily recoverable hydrocarbon reserves in the Cretaceous sediments of Western Siberia. In this regard, interest in the horizon US2 has increased. Collectors of this horizon have a complex structure, which leads to the appearance of significant errors in geological models. The development of the methodological basis for the analysis of the accuracy of geological models, in particular three-dimensional, can solve this issue.The article gives a technique for analyzing the quality of a 3D geological model: a case study of horizon US2. As a result of the work, the following conclusions were drawn: firstly, there is the need to update geological models after drilling each well; secondly, the possible causes of the discrepancy between the actual and forecasted indices are revealed; thirdly, usage a map of the residuals of the absolute elevations of the horizon US2, as additional information, can minimize risks when drilling wells and increase the reliability of 3D geological model.


2020 ◽  
Vol 43 ◽  
Author(s):  
Michael Lifshitz ◽  
T. M. Luhrmann

Abstract Culture shapes our basic sensory experience of the world. This is particularly striking in the study of religion and psychosis, where we and others have shown that cultural context determines both the structure and content of hallucination-like events. The cultural shaping of hallucinations may provide a rich case-study for linking cultural learning with emerging prediction-based models of perception.


Author(s):  
D. L. Callahan

Modern polishing, precision machining and microindentation techniques allow the processing and mechanical characterization of ceramics at nanometric scales and within entirely plastic deformation regimes. The mechanical response of most ceramics to such highly constrained contact is not predictable from macroscopic properties and the microstructural deformation patterns have proven difficult to characterize by the application of any individual technique. In this study, TEM techniques of contrast analysis and CBED are combined with stereographic analysis to construct a three-dimensional microstructure deformation map of the surface of a perfectly plastic microindentation on macroscopically brittle aluminum nitride.The bright field image in Figure 1 shows a lg Vickers microindentation contained within a single AlN grain far from any boundaries. High densities of dislocations are evident, particularly near facet edges but are not individually resolvable. The prominent bend contours also indicate the severity of plastic deformation. Figure 2 is a selected area diffraction pattern covering the entire indentation area.


2020 ◽  
pp. 1-12
Author(s):  
Wu Xin ◽  
Qiu Daping

The inheritance and innovation of ancient architecture decoration art is an important way for the development of the construction industry. The data process of traditional ancient architecture decoration art is relatively backward, which leads to the obvious distortion of the digitalization of ancient architecture decoration art. In order to improve the digital effect of ancient architecture decoration art, based on neural network, this paper combines the image features to construct a neural network-based ancient architecture decoration art data system model, and graphically expresses the static construction mode and dynamic construction process of the architecture group. Based on this, three-dimensional model reconstruction and scene simulation experiments of architecture groups are realized. In order to verify the performance effect of the system proposed in this paper, it is verified through simulation and performance testing, and data visualization is performed through statistical methods. The result of the study shows that the digitalization effect of the ancient architecture decoration art proposed in this paper is good.


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