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Article
Publication date: 27 July 2012

Xinsheng Xu, Tianhong Yan, Xizhu Tao, Tianrong Zhu and Dan Li

In the case of mass customization, product variety leads to exponentially increased variation in the production system. Providing flexible manufacturing solution for customized…

279

Abstract

Purpose

In the case of mass customization, product variety leads to exponentially increased variation in the production system. Providing flexible manufacturing solution for customized product rapidly is the key measure to achieve the goal of cost and delivery time. The purpose of this paper is to address these issues.

Design/methodology/approach

Following introduction, the paper describes flexible manufacturing and numerical control (NC) machining techniques in mass customization. The kernel idea is that NC program for mass customization product should be generated from parametric manufacturing information template, so as to achieve NC program variant design in accord with product variant design. The elements of NC programming system discussed in this paper address the definition of machining feature, the development of NC subprogram, template construct, and the architecture of NC programming system for mass customization product.

Findings

Machining feature, NC subprogram, and template are made to help manufacturing system to deal with the increased variation requirements resulting from product variety. The effects can be verified by the case study.

Originality/value

This paper provides a practical NC programming system for mass customization product and makes detailed technical solution to manufacturing system developer and its applications.

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Article
Publication date: 13 July 2015

Lihua Yang, G. Zhiyong Lan and Shuang He

This study aims to investigate scholars’ roles in resolving environmental community conflict, as environmental community conflict is becoming an increasingly serious problem in…

1037

Abstract

Purpose

This study aims to investigate scholars’ roles in resolving environmental community conflict, as environmental community conflict is becoming an increasingly serious problem in contemporary China, and it explored the underlying factors and mechanisms that influence successful conflict resolution.

Design/methodology/approach

Based on a combination of three types of sources – interviews, participant observation and existing literature, the study compared and contrasted 35 cases through a two-stage study project with 25 environmental community conflict cases in the first stage and ten non-environmental cases in the second.

Findings

Results indicate that scholars serve seven roles in community conflict resolution: identification persons for potential sources of community conflict and supporters for the people who evaluate conflict problems before attempting to solve them; advisers for conflict protagonists; leaders of many knowledge-related activities; organizers of entrepreneurial activities for other community members; information brokers between community members and other stakeholders; representatives of the government, firms, community members and other stakeholders; and self-interested participants. While scholars’ participation is important for resolving community conflict, their actions are often not effective. Successful community conflict resolution involving scholars must satisfy eight underlying factors: local scholars’ sustained participation; high capacity; improvement on the organizational level of community members; emphasis on high efficiency knowledge and information transmission; effective finding and use of the community’s social capital; continual optimization on their action strategies; obtainability of some benefits; and non-local scholars’ sustained external support through social capital. The more closely these rules are followed, the more successful scholars’ participation in community conflict resolution will be.

Originality/value

The findings have practical implications for improving the effectiveness of scholars’ participation in community conflict resolution in contemporary China and even in other countries.

Details

International Journal of Conflict Management, vol. 26 no. 3
Type: Research Article
ISSN: 1044-4068

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Article
Publication date: 12 August 2019

Lei Guo, Lien Zhu, Lei Ma, Jian Zhang, QiuYu Meng, Zheng Jin, Meihua Liu and Kai Zhao

The purpose of this paper is to prepare a spherical modifier-modified activated carbon fiber of high specific capacitance intended for electrode materials of supercapacitor.

118

Abstract

Purpose

The purpose of this paper is to prepare a spherical modifier-modified activated carbon fiber of high specific capacitance intended for electrode materials of supercapacitor.

Design/methodology/approach

In this study, phenolic-based microspheres are taken as modifiers to prepare PAN-based fiber composites by electrospinning, pre-oxidation and carbonization. Pearl-chain structures appear in RFC/ACF composites, and pure polyacrylonitrile fibers show a dense network. The shape and cross-linking degree are large. After the addition of the phenolic-based microspheres, the composite material exhibits a layered pearlite chain structure with a large porosity, and the RFC/ACF composite material is derived because of the existence of a large number of bead chain structures in the composite material. The density increases, the volume declines and the mass after being assembled into a supercapacitor as a positive electrode material decreases. The specific surface area of RFC/ACF composites is increased as compared to pure fibers. The increase in specific surface area could facilitate the diffusion of electrolyte ions in the material. Owing to the large number of bead chains, plenty of pore channels are provided for the diffusion of electrolyte ions, which is conducive to enhancing the electrochemical performance of the composite and improving the RFC/ACF composite and the specific capacitance of the material. The methods of electrochemical testing on symmetric supercapacitors (as positive electrodes) are three-electrode cyclic voltammetry, alternating current impedance and cycle stability.

Findings

The specific capacitance value of the composite material was found to be 389.2 F/g, and the specific capacitance of the electrode operating at a higher current density of 20 mA/cm2 was 11.87 F/g (the amount of the microsphere modifier added was 0.3 g). Using this material as a positive electrode to assemble into asymmetrical supercapacitor, after 2,000 cycles, the specific capacitance retention rate was 87.46 per cent, indicating excellent cycle stability performance. This result can be attributed to the fact that the modifier embedded in the fiber changes the porosity between the fibers, while improving the utilization of the carbon fibers and making it easier for electrolyte ions to enter the interior of the composites, thereby increasing the capacitance of the composites.

Originality/value

The modified PAN-based activated carbon fibers in the study had high specific surface area and significantly high specific capacitance, which makes it applicable as an efficient and environment-friendly absorbent, as well as an advanced electrode material for supercapacitor.

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Article
Publication date: 17 January 2025

Javier Andrés Calderon-Téllez, Milton M. Herrera and Gary Bell

This paper aims to contribute to a better understanding of the relationship between the rework cycle with system dynamics (SD) models and the Project Management Institute (PMI…

15

Abstract

Purpose

This paper aims to contribute to a better understanding of the relationship between the rework cycle with system dynamics (SD) models and the Project Management Institute (PMI) process group.

Design/methodology/approach

To achieve the aim of this paper, 84 articles that blended SD models and project management (PM) were analysed to identify key variables used in PM modelling. The key variables were utilised to build an extended SD model with multiple rework cycles to explain the link between the rework cycle SD model and PMI process group.

Findings

The results show that SD might be a favourable approach to capture the reality of the project life cycle when it is extended to represent front-ending, delivery and back-ending. In fact, SD models could potentially be extended to the agile and hybrid methodologies for improving the PM.

Research limitations/implications

Although this paper provides a better understanding about the extended project life cycle by SD modelling, the results reported herein should be considered in future research that comprises the design of a SD model considering the agile and hybrid methodologies for PM.

Practical implications

This paper shows how the rework cycle can be applied to the extended project life cycle and the PMI process groups. Additionally, it highlights why SD modelling is a crucial tool for assisting managers with long-term decision-making in PM.

Originality/value

This study is among the first to explore the integration of rework cycle SD models within the PMI process groups. Specifically, it may prove valuable in supporting decision-making for project managers at each stage of a project’s extended life cycle. As a result, the research also contributes to the ongoing discussion on integrating PM with sustainability and innovation considerations.

Propósito

Este artículo tiene como objetivo contribuir a una mejor comprensión de la relación entre el ciclo de retrabajo con modelos de dinámica de sistemas (DS) y el grupo de procesos del Instituto de Gestión de Proyectos (PMI, por su sigla en inglés).

Diseño/metodología/enfoque

Para lograr el objetivo de este artículo, se analizaron 84 artículos que combinaban modelos de DS y gestión de proyectos (PM, por su sigla en inglés) para identificar las variables clave utilizadas en el modelado de PM. Las variables clave se utilizaron para construir un modelo de DS extendido con múltiples ciclos de retrabajo para explicar el vínculo entre el modelo de DS del ciclo de retrabajo y el grupo de procesos de PMI.

Resultados

Los resultados muestran que la DS puede ser un enfoque favorable para capturar la realidad del ciclo de vida del proyecto cuando se extiende para representar el inicio, la entrega y el final. De hecho, los modelos DS podrían extenderse potencialmente a las metodologías ágiles e híbridas para mejorar la gestión de proyectos.

Limitaciones/implicaciones de la investigación

Aunque este documento proporciona una mejor comprensión sobre el ciclo de vida extendido del proyecto mediante el modelado de DS, los resultados informados aquí deben considerarse en futuras investigaciones que comprendan el diseño de un modelo DS considerando las metodologías ágiles e híbridas para la gestión de proyectos.

Implicaciones prácticas

Este documento muestra cómo se puede aplicar el ciclo de revisión al ciclo de vida extendido del proyecto y a los grupos de procesos de PMI. Además, el documento establece por qué el modelado DS es un enfoque importante para ayudar a los gerentes con la toma de decisiones gerenciales a largo plazo.

Originalidad/valor

Este estudio es uno de los primeros en explorar la integración de los modelos de DS de ciclo de trabajo dentro de los grupos de procesos PMI. Específicamente, puede ser valioso para apoyar la toma de decisiones para los gerentes de proyectos en cada etapa del ciclo de vida extendido de un proyecto. Como resultado, la investigación también contribuye a la discusión continua sobre la integración de la gestión de proyectos con consideraciones de sostenibilidad e innovación.

Details

Academia Revista Latinoamericana de Administración, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1012-8255

Keywords

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