The Experts below are selected from a list of 1764 Experts worldwide ranked by ideXlab platform

Marina Mistretta - One of the best experts on this subject based on the ideXlab platform.

  • New exergy criterion in the “multi-criteria” context: a life cycle assessment of two Plaster Products
    Energy Conversion and Management, 2003
    Co-Authors: Giorgio Beccali, Maurizio Cellura, Marina Mistretta
    Abstract:

    This paper deals with the exergy analysis (EXA) of Plaster materials and ranks the environmental burdens due to the production of such materials. The calculation of the exergy loss during the whole examined process represents a relevant index, looking at the technology improvement of a process, as a suitable tool in aid of the trade-off of alternative materials in the decision making. A life cycle inventory is performed for building Plaster Products and the matrix method is used. The authors extend the application of EXA to life cycle assessment, conducting an exergetic life cycle assessment, and propose an exergetic index in the framework of multi-criteria decision making. An exergy balance, accounting for energy and material flows, is applied to calculate the exergy losses and efficiencies for each stage of the examined processes: resources extraction, materials processing, transport and product manufacturing. Furthermore, exergy values are calculated for the pollutants and wastes.

Seungsig Hwang - One of the best experts on this subject based on the ideXlab platform.

  • an investigation of how the accelerator effects the setting time and the headness of Plaster Products
    Journal of Technologic Dentistry, 1997
    Co-Authors: Seungsig Hwang
    Abstract:

    This investigation is carried out of inqurie into the effects of the accelerator on the setting time and haedness when it is used with Plaster Products. Plaster(), dental hard stone(), and limproved dental hard stone() are selected as the objects of the investigation, since they are most common materials for dental Plaster Products. Setting time is gauged by means of Vicket Needle and Gilmore Needle, and hardness is gauged by means of Brinell and Vicket Hardness machines. Samples of each material are made in the standerd water powder ratio and with the accelerator repectively, Every material is tested five times each. The results of the tests are as fallow : 1) In each case the setting time is shortened when the accelerator is used. 2) Of the three materials the hardness of the Plaster was lowest A() ) )} 3) In each case the hardness of the samples made in the standard water powder ratio were higher than that of the sample made with the accelerator. A1 > A2 ; B1>B2 ; C1>C2 4) Final Conclusion : Higher quality cast is expected when it is made in the standard water powder ratio.

Giorgio Beccali - One of the best experts on this subject based on the ideXlab platform.

  • New exergy criterion in the “multi-criteria” context: a life cycle assessment of two Plaster Products
    Energy Conversion and Management, 2003
    Co-Authors: Giorgio Beccali, Maurizio Cellura, Marina Mistretta
    Abstract:

    This paper deals with the exergy analysis (EXA) of Plaster materials and ranks the environmental burdens due to the production of such materials. The calculation of the exergy loss during the whole examined process represents a relevant index, looking at the technology improvement of a process, as a suitable tool in aid of the trade-off of alternative materials in the decision making. A life cycle inventory is performed for building Plaster Products and the matrix method is used. The authors extend the application of EXA to life cycle assessment, conducting an exergetic life cycle assessment, and propose an exergetic index in the framework of multi-criteria decision making. An exergy balance, accounting for energy and material flows, is applied to calculate the exergy losses and efficiencies for each stage of the examined processes: resources extraction, materials processing, transport and product manufacturing. Furthermore, exergy values are calculated for the pollutants and wastes.

Maurizio Cellura - One of the best experts on this subject based on the ideXlab platform.

  • New exergy criterion in the “multi-criteria” context: a life cycle assessment of two Plaster Products
    Energy Conversion and Management, 2003
    Co-Authors: Giorgio Beccali, Maurizio Cellura, Marina Mistretta
    Abstract:

    This paper deals with the exergy analysis (EXA) of Plaster materials and ranks the environmental burdens due to the production of such materials. The calculation of the exergy loss during the whole examined process represents a relevant index, looking at the technology improvement of a process, as a suitable tool in aid of the trade-off of alternative materials in the decision making. A life cycle inventory is performed for building Plaster Products and the matrix method is used. The authors extend the application of EXA to life cycle assessment, conducting an exergetic life cycle assessment, and propose an exergetic index in the framework of multi-criteria decision making. An exergy balance, accounting for energy and material flows, is applied to calculate the exergy losses and efficiencies for each stage of the examined processes: resources extraction, materials processing, transport and product manufacturing. Furthermore, exergy values are calculated for the pollutants and wastes.

R S P Coutts - One of the best experts on this subject based on the ideXlab platform.

  • wastepaper fibres in Plaster Products
    Journal of Materials Science Letters, 1991
    Co-Authors: R S P Coutts
    Abstract:

    L'utilisation de certaines qualites de vieux papiers comme renforcement pour les produits a base de plâtre est acceptable si l'on peut tolerer des valeurs de tenacite assez faibles. La resistance a la flexion est suffisante pour l'utilisation comme materiau de construction