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Article
Publication date: 19 November 2021

Marcelo Greco and Daniel Henrique Nunes Peixoto

In this paper the use of classical strain measures in analysis of trusses at finite deformations will be discussed. The results will be compared to the ones acquired using a novel…

Abstract

Purpose

In this paper the use of classical strain measures in analysis of trusses at finite deformations will be discussed. The results will be compared to the ones acquired using a novel strain measure based on the Hyperbolic Sine function. Through the evaluation of results, algebraic development and graph analysis, the properties of the Hyperbolic Sine strain measure will be examined.

Design/methodology/approach

Through graph plotting, comparisons between the novel strain measure and the classic ones will be made. The formulae for the implementation of the Hyperbolic Sine strain measure into a positional finite element method are developed. Four engineering applications are presented and comparisons between results obtained using all strain measures studied are made.

Findings

The proposed strain measure, Hyperbolic Sine, has objectivity and symmetry. The linear constitutive model formed by the Hyperbolic Sine strain and its conjugated stress presents an increasing stiffness, both in compression and tension, a behavior that can be useful in the modeling of several materials.

Research limitations/implications

The structural analysis performed on the four examples of trusses in this article did not consider the variation of the cross-sectional area of the elements or the buckling phenomenon, moreover, only elastic behavior is considered.

Originality/value

The present article proposes the use of a novel strain measure family, based on the Hyperbolic Sine function and suitable for structural applications. Mathematical expressions for the use of the Hyperbolic Sine strain measure are established following the energetic concepts of the positional formulation of the finite element method.

Details

Engineering Computations, vol. 39 no. 5
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 10 July 2018

Lindomar Subtil de Oliveira, Márcia Elisa Echeveste and Marcelo Nogueira Cortimiglia

A comprehensive understanding about open innovation implementation is still lacking. In particular, a compilation of drivers and barriers for OI implementation is absent from the…

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Abstract

Purpose

A comprehensive understanding about open innovation implementation is still lacking. In particular, a compilation of drivers and barriers for OI implementation is absent from the literature. Thus, the purpose of this paper is to identify critical success factors (CSFs) for OI implementation at the firm level.

Design/methodology/approach

A systematic literature review was conducted in order to identify CSFs for OI implementation in previously published literature. A total of 2,894 papers were identified, 156 of which were subjected to full independent analysis by the three authors. The following aspects were considered: research strategy, approach (empirical or theoretical) and objectives; theoretical background; methodological procedures; main results; and contributions to the literature. If the paper reported empirical research that included a description of actual OI implementation, additional aspects were analyzed: industry or sector of application; firm characteristics; success of OI implementation and OI tools and techniques reported.

Findings

A synthetizing framework with six thematic categories of CSFs was proposed: leadership, internal innovation capability, network and relationships, strategy, technology management, and culture. A total of 22 CSFs for OI implementation were identified within these categories.

Originality/value

The proposed framework is an attempt to systematically generate a comprehensive list of factors that impact OI implementation. As such, it can support the theoretical development of OI-related capabilities, and serve as basis for future research that investigates operationalization and measurement of such capabilities.

Details

Journal of Organizational Change Management, vol. 31 no. 6
Type: Research Article
ISSN: 0953-4814

Keywords

Article
Publication date: 7 August 2017

Urbi Garay, Gwendoline Vielma and Edward Villalobos

The purpose of this paper is to present the formulation of the first exhaustive price index for Argentinian (and other Latin American countries) visual artists using 5,069 works…

Abstract

Purpose

The purpose of this paper is to present the formulation of the first exhaustive price index for Argentinian (and other Latin American countries) visual artists using 5,069 works sold in auctions by 71 Argentinian artists during the years 1980-2014.

Design/methodology/approach

The authors estimated a regression of hedonic prices using the ordinary least squares method. When the regression was run and the results were analysed, the authors then estimated the annual price index of Argentinian artists’ work to then compare them with different financial and economic variables.

Findings

The average annual nominal arithmetic rate of return in dollars for Argentinian art during this period was 6.81 per cent, with a 29.11 per cent standard deviation. Argentinian art shows a low correlation with Argentinian and US companies’ shares and a slightly negative correlation with US bonds. This is the reason for artworks to be included in investors’ portfolios despite the relatively high volatility.

Research limitations/implications

Valuating works of art in Argentina can be explained by a series of their attributes. The benefits of art as an investment should be contrasted with factors including illiquidity and high transaction costs that are inherent when investing in works of art.

Practical implications

Argentinian artists’ works have higher prices when, ceteris paribus, they are dated; they are auctioned in either Christie’s, Sotheby’s, Galería Arroyo, Roldan & Cia, Meeting Art, or Naon & Cia; they are oil or acrylic paintings; they are larger in size – although the price increase is decreasing when the size of the painting increases; and when the artist dies before their work is auctioned.

Originality/value

This work presents the first rigorous price index of Argentinian artists’ works. Additionally, and as far as the authors have been able to observe, the time-period in this article is the longest that has been used in studies on art as an investment in emerging markets.

Propósito

Este trabajo presenta la elaboración del primer índice exhaustivo de precios de artistas plásticos de Argentina (y de cualquier otro país de Latino América) a partir de 5.069 ventas de obras de 71 artistas argentinos realizadas en subastas durante el período 1980-2014.

Diseño/metodología/enfoque

Se estimó una regresión de precios hedónica por el Método de Mínimos Cuadrados Ordinarios. Una vez corrida la regresión y analizados sus resultados, se procedió a estimar el índice anual de precios de obras de artistas argentinos, para posteriormente relacionarlos con diversas variables financieras y económicas.

Hallazgos

El rendimiento promedio aritmético nominal anual en dólares del arte argentino durante ese período fue de 6,81% con una desviación estándar de 29,11%. El arte argentino exhibe una baja correlación con las acciones de empresas argentinas y de EEUU y ligeramente negativa con bonos de EEUU, lo cual le confiere atributos para ser incluido en las carteras de los inversionistas, a pesar de la elevada volatilidad.

Limitaciones e implicaciones de la investigación

Se consigue que la valoración de arte en Argentina puede ser explicada por una serie de atributos de las obras de arte. Los beneficios del arte como inversión deben ser evaluados con la iliquidez y los elevados costos de transacción, entre otros costos, inherentes a la inversión en obras de arte.

Implicaciones prácticas

Las obras de artistas argentinos tienen precios más altos cuando, ceteris paribus: están fechadas, se subastan en Christie's, en Sotheby's o en Galería Arroyo, son ejecutadas en óleo o en acrílico, tienen un mayor área, aunque el aumento de precio es decreciente al aumentar el área, y cuando el artista ya había fallecido al momento de celebrase la subasta.

Originalidad/valor

Este trabajo propone el primer índice riguroso de precios de obras de artistas de Argentina. Además, y hasta donde hemos podido comprobar, el período utilizado en este trabajo es el más largo que se haya empleado en estudios del arte como inversión en mercados emergentes.

Details

Academia Revista Latinoamericana de Administración, vol. 30 no. 3
Type: Research Article
ISSN: 1012-8255

Keywords

Article
Publication date: 29 November 2018

Sachin Kumar Mangla, Sunil Luthra and Suresh Jakhar

The purpose of this paper is to facilitate green supply chain (GSC) managers and planners to model and access GSC risks and probable failures. This paper proposes to use the fuzzy…

Abstract

Purpose

The purpose of this paper is to facilitate green supply chain (GSC) managers and planners to model and access GSC risks and probable failures. This paper proposes to use the fuzzy failure mode and effects analysis (FMEA) approach for assessing the risks associated with GSC for benchmarking the performance in terms of effective GSC management adoption and sustainable production.

Design/methodology/approach

Initially, different failure modes are defined using FMEA analysis, and in order to decide the risk priority, the risk priority number (RPN) is determined. Such priority numbers are typically acquired from the judgment decisions of experts that could contain the element of vagueness and imperfection due to human biases, and it may lead to inaccuracy in the process of risk assessment in GSC. In this study, fuzzy logic is applied to conventional FMEA to overcome the issues in assigning RPNs. A plastic manufacturer GSC case exemplar of the proposed model is illustrated to present the authenticity of this method of risk assessment.

Findings

Results indicate that the failure modes, given as improper green operating procedure, i.e. process, operations, etc. (R6), and green issues while closing the loop of GSC (R14) hold the highest RPN and FRPN scores in classical as well as fuzzy FMEA analysis.

Originality/value

The present research work attempts to propose an evaluation framework for risk assessment in GSC. This paper explores both sustainable developments and risks related to efficient management of GSC initiatives in a plastic industry supply chain context. From a managerial perspective, suggestions are also provided with respect to each failure mode.

Details

Benchmarking: An International Journal, vol. 25 no. 8
Type: Research Article
ISSN: 1463-5771

Keywords

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