scispace - formally typeset
Search or ask a question
Topic

Material flow

About: Material flow is a research topic. Over the lifetime, 3050 publications have been published within this topic receiving 36844 citations. The topic is also known as: material stream.


Papers
More filters
Journal ArticleDOI
TL;DR: In this paper, a mathematical framework and application for the management of nitrogenous species (primarily ammonium ions) was developed to develop a systematic and generally applicable methodology for material flow analysis in drainage systems and watersheds.
Abstract: This paper is aimed at developing a systematic and generally applicable methodology for material flow analysis in drainage systems and watersheds. In particular, this research has focused on developing a mathematical framework and application for the management of nitrogenous species (primarily ammonium ions). Nitrogen compounds are among the most important species contributing to ecological cycles. Indeed, the environmental and biological aspects of water systems and their surrounding systems are highly impacted by nitrogen compounds as they contribute to the quality, nutrition, and toxicity of these systems. A material flow model was developed to deal primarily with the water phase while including pertinent information on the solid and air phases as they interface with the water medium. Both spatial and discrete temporal dimensions were included to account for nitrogen flow and transformation. The model includes the various environmental phenomena that influence the fate and transport of targeted species (e.g., volatilization, precipitation, sedimentation, uptake by biota, adsorption, chemical and biochemical reactions, etc.). Furthermore, the model includes material flow analysis operators (or transfer functions) that characterize the system inputs and outputs as they relate to the surroundings. The aforementioned material flow analysis tools were combined in a computer-aided modeling platform to provide a complete material flow analysis and yield useful insights on the transport and fate of targeted species. The simulation results shed light on the system performance. Actual data for an Egyptian drainage system (Bahr El-Baqar) along with the outfall to Lake Manzala were used to illustrate the usefulness and applicability of the developed model. Comparison with the measured data confirmed the validity and fidelity of the model.

22 citations

Journal ArticleDOI
TL;DR: In this article, a simulation method for reactive injection molding, describing fiber-induced anisotropic flow behavior by a fourth order viscosity tensor is presented. And the model is validated with experimental data, showing good agreement.
Abstract: Discontinuous fiber reinforced polymers (FRPs) are one of the most complex materials used in volume production, composing a transient chemo-thermomechanical matrix behavior and fiber-induced anisotropic physical properties. The fibers induce anisotropic behavior not only in structural properties, but also during material flow and hence during mold filling, which in turn influences the final physical properties. Therefore, the fibers influence the material flow and vice versa, the material flow causes fiber-reorientation. This interaction is typically decoupled in state of the art process simulations. To consider the fiber-flow interactions, the present work provides a new simulation method for reactive injection molding, describing the fiber-induced anisotropic flow behavior by a fourth order viscosity tensor. The matrix viscosity is modelled non-Newtonian and curing kinetics are taken into account. Numerical examples demonstrate anisotropic effects to verify the model implementations. Furthermore, cavity pressure and fiber orientations are validated with experimental data, showing good agreement.

22 citations

Journal ArticleDOI
TL;DR: A dynamic material flow control in mixed model assembly lines is proposed based on in-plant milk run principle and outperforms the traditional methods of material flow planning.

22 citations

Journal ArticleDOI
TL;DR: In this paper, the authors examined which material planning methods companies are using, to what extent these methods are perceived as efficiently supporting the operation, how the various methods are applied, and how the satisfied users apply the methods.
Abstract: Methods for planning and control of the flow of material in the manufacturing enterprise are more or less appropriate to use in a specific situation, mainly depending on the existing planning environment. How well they contribute to an effective material flow is also depending on how they are applied. This paper examines which material planning methods companies are using, to what extent these methods are perceived as efficiently supporting the operation, how the various methods are applied, and how the satisfied users apply the methods. The findings are based on a survey study carried out in 84 manufacturing companies in Sweden in 2000. From the results some conclusions concerning state-of-the-art application of material planning methods in the manufacturing industry are presented. A comparison with a similar study on the same population from 1993 is also conducted. The findings show that material requirements planning is generally the most used method. The most common ways to determine planning paramete...

22 citations

Journal ArticleDOI
TL;DR: In this paper, a web-based tool to generate interactive Sankey diagrams for developing strategies to sustainably manage resource and waste flows through a complex economy is presented. But it is difficult for the policy maker and industries to know the flows for the lack of the expertise to implement material flow analysis.

22 citations


Network Information
Related Topics (5)
Supply chain
84.1K papers, 1.7M citations
81% related
Microstructure
148.6K papers, 2.2M citations
77% related
Sustainable development
101.4K papers, 1.5M citations
76% related
Alloy
171.8K papers, 1.7M citations
75% related
Ultimate tensile strength
129.2K papers, 2.1M citations
74% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023120
2022221
2021110
2020139
2019174
2018167