30,030 research outputs found
Aesthetic objects, aesthetic judgments and the crafting of organizational style in creative industries
In this article, we conceptually engage with style as central to creative industries. We specifically argue that style is crafted into being via an interplay between aesthetic judgments and “aesthetic objects.” We define aesthetic objects as temporary, material settlements fueled by a continual sense of dissatisfaction, eventually resolved through relational engagements. These remain under aesthetic inquiry throughout the process of crafting, until brought to particular close. We elaborate our theorizing with a non-traditional exemplar of the Bride Dress in the preparation of a 2009 Jean-Paul Gaultier’s fashion show. Our subsequent contribution is a richer conceptual understanding of style, with a material, aesthetic engagement at its center. In addition, in foregrounding under-explored features (i.e., aesthetic judgments, crafting of physical materials), and introducing new concepts (i.e., aesthetic objects), we outline promising openings for and significant connections with scholarship on creative or fluid industries, style, and organizational identity
Evaluating the Impact of SDC on the GMRES Iterative Solver
Increasing parallelism and transistor density, along with increasingly
tighter energy and peak power constraints, may force exposure of occasionally
incorrect computation or storage to application codes. Silent data corruption
(SDC) will likely be infrequent, yet one SDC suffices to make numerical
algorithms like iterative linear solvers cease progress towards the correct
answer. Thus, we focus on resilience of the iterative linear solver GMRES to a
single transient SDC. We derive inexpensive checks to detect the effects of an
SDC in GMRES that work for a more general SDC model than presuming a bit flip.
Our experiments show that when GMRES is used as the inner solver of an
inner-outer iteration, it can "run through" SDC of almost any magnitude in the
computationally intensive orthogonalization phase. That is, it gets the right
answer using faulty data without any required roll back. Those SDCs which it
cannot run through, get caught by our detection scheme
Iterative Method to Derive the Equivalent Centrifugal Compressor Performance at Various Operating Conditions: Part I: Modelling of Suction Parameters Impact
This paper introduces a new iterative method to predict the equivalent centrifugal compressor performance at various operating conditions. The presented theoretical analysis and empirical correlations provide a novel approach to derive the entire compressor map corresponding to various suction conditions without a prior knowledge of the detailed geometry. The efficiency model was derived to reflect the impact of physical gas properties, Mach number, and flow and work coefficients. One of the main features of the developed technique is the fact that it considers the variation in the gas properties and stage efficiency which makes it appropriate with hydrocarbons. This method has been tested to predict the performance of two multistage centrifugal compressors and the estimated characteristics are compared with the measured data. The carried comparison revealed a good matching with the actual values, including the stable operation region limits. Furthermore, an optimization study was conducted to investigate the influences of suction conditions on the stage efficiency and surge margin. Moreover, a new sort of presentation has been generated to obtain the equivalent performance characteristics for a constant discharge pressure operation at variable suction pressure and temperature working conditions. A further validation is included in part two of this study in order to evaluate the prediction capability of the derived model at various gas compositions
Linear systems solvers - recent developments and implications for lattice computations
We review the numerical analysis' understanding of Krylov subspace methods
for solving (non-hermitian) systems of equations and discuss its implications
for lattice gauge theory computations using the example of the Wilson fermion
matrix. Our thesis is that mature methods like QMR, BiCGStab or restarted GMRES
are close to optimal for the Wilson fermion matrix. Consequently,
preconditioning appears to be the crucial issue for further improvements.Comment: 7 pages, LaTeX using espcrc2.sty, 2 figures, 9 eps-files, Talk
presented at LATTICE96(algorithms), submitted to Nucl. Phys. B, Proc. Supp
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