Semantic Scholar extracted view of "Sector aggregation bias in environmentally extended input output modeling of raw material flows in Finland" by Pablo Piñero et al.
A general analytical model of materials flow analysis (MFA) incorporating physical waste input‐output is proposed that is fully consistent with the mass balance principle and applied to Japanese IO data for the flow of 11 base metals and their scrap.
In this first part of a two-part paper, a framework for using input-output mathematics to model material and energy flows is constructed from a foundation laid by previous research in nutrient and ...
The instantaneous outflow fraction q ij (Bailey 2000; Bailey et al. 2004) is defined in equation (2), and Q * in equation (3) is the matrix form of q ij *, which represents all direct outflows ...
Think of @ Input () and @ Output () like ports or doorways— @ Input () is the doorway into the component allowing data to flow in while @ Output () is the doorway out of the component, allowing the child component to send data out.
The general aim is to include all the central material and energy flows in the model [ 44 ], but the assessment boundary rarely includes all the upstream processes [e.g. 17, 27] or even a comprehensive inventory of materials [ 9, 45] due to data shortages and the high workload required.
Request PDF | Constructing Physical Input-Output Tables with Material Flow Analysis (MFA) Data: Bottom-Up Case Studies | In an economic system that aims at sustainable development, material ...
The principal aspect of these studies is the strong relationship between rial Flow Analysis and Input-Output Analysis since MFA is able to present needed to illustrate typical inputs and outputs of economic activities, and records them as intersectoral exchange flows.
The specific topic in this paper concerns several material flow metrics used to characterize systems behavior that are derived from the ecological interpretation of input-output techniques; most ...
This paper develops a theoretical model of material flow analysis (MFA) within the framework of the Waste Input–Output model (WIO) (Nakamura and Kondo). The model is developed based on two fundamental ingredients: yield ratios and the degree of fabrication. In manufacturing process, multiplication of physical inputs by the yield ratios gives ...
The temperature of the input flow is Tin and the temperature of the output flow is the same as the chamber temperature (7). The heater supplies heat input in. The chamber is covered with insulation material with thermal resistance R. (a) Derive the complete mathematical model of the system.
Semantic Scholar extracted view of "Multivariate input-output and material flow analysis of current and future plastic recycling rates from waste electrical and electronic equipment:The case of small appliances" by I. S. Lase et al.
Several material flow metrics used to characterize system behavior that are derived from the ecological development of input-output techniques are concerns; most notable of these metrics are several measures of material cycling and a measure of the number of processes visited by material while in a system. This article, continuing with …
This study combined a waste input–output material flow model and physical unit input–output analysis to perform a simultaneous MFA for nickel, chromium, and molybdenum in the Japanese economy in 2000. Results indicated the importance of recovery of these elements in recycling policies for end-of-life (EoL) vehicles and …
At the national level, Liang et al. (2017) used SPA method based on physical and monetary input-output model to identify new hotspots for policy decisions in the material flows of China.
A review of methods to trace material flows into final products in dynamic material flow analysis: From industry shipments in physical units to monetary input–output tables, Part 1
Chen et al. (2022) also integrated material flow analysis and input-output modeling to estimate the embodied nitrogen emissions in the cross-border food flows of the Beijing-Tianjin-Hebei urban agglomeration.
Input-output analysis is the name of a particular approach to studying economic interaction. It is a technique for economic analysis based on a modeling framework that accounts for all of the
A general analytical model of materials flow analysis (MFA) incorporating physical waste input-output is proposed that is fully consistent with the mass balance principle.
The physical input-output (PIO) model has different product flow scopes from the monetary input-output (MIO) model. Using the PIO and MIO models to analyze the structure of material flows can identify new …
This paper proposes a new method of measuring the stock of long-lived durables and infrastructure in terms of the mass of its materials. This method is based on the WIO-MFA method [S. Nakamura et al. J. Ind. Ecol. 11 (2007) 50-63] and the capital formation matrix that is one of the supplementary tables of the input-output table.
In this context, multivariate input-output analysis (MIOA) and material flow analysis (MFA) are seen as suitable tools to answer the above mentioned questions because these approaches can better predict future WEEE generation.
This study combined a waste input-output material flow model and physical unit input-output analysis to perform a simultaneous MFA for nickel, chromium, and molybdenum in the Japanese economy in 2000. Results indicated the importance of recovery of these elements in recycling policies for end-of-life (EoL) vehicles and …
A general analytical model of materials flow analysis (MFA) incorporating physical waste input‐output is proposed that is fully consistent with the mass balance principle. Exploiting the triangular nature of the matrix of input coefficients, which is obtained by rearranging the ordering of sectors according to degrees of fabrication, the material composition matrix …
Rutger Hoekstra examines the complex relationship between the monetary economy and the materials flows that are extracted and emitted by economic activities. These physical flows are responsible for many important environmental problems such as unsustainable resource depletion, waste production and climate change.
A general analytical model of materials flow analysis (MFA) incorporating physical waste input-output is proposed that is fully consistent with the mass balance principle. Exploiting the triangular nature of the matrix of input coefficients, which is obtained by rearranging the ordering of sectors according to degrees of fabrication, the …
Material flow-based indicators play an important role in measuring green and resource-efficient growth. This article examines the global flows of materials and the amounts of materials directly and indirectly necessary to satisfy domestic final demand in different countries world-wide.
The degree of resolution; the consideration of different PVC types, which are seldom performed in the material flow analysis (MFA) literature; and the use of waste input−output material flow analysis (WIO-MFA) represent distinguishing features of …
A general analytical model of materials flow analysis (MFA) incorporating physical waste input-output is proposed that is fully consistent with the mass balance principle. Exploiting the triangular nature of the matrix of input coefficients, which is obtained by rearranging the ordering of sectors according to degrees of fabrication, the material composition matrix …
