Results 121 to 130 of about 5,676 (162)
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Rheological properties of vinyl polysiloxane impression pastes
Dental Materials, 2001Some vinyl polysiloxane impression (VPS) materials are claimed to be 'thixotropic' so that they will have 'non-drip' properties and not flow off an impression tray during insertion of the material into the mouth. This work was carried out to investigate rheological properties of VPS materials by determination of their flow properties under different ...
J E, Martinez, E C, Combe, I J, Pesun
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Properties of Cemented Paste Backfill
2017Knowledge on the properties of cemented paste backfill (CPB) material is essential for the design of cost-effective, safe and durable cemented backfill structures. The primary properties and characteristics of CPB are categorised by their physical, mechanical, hydraulic, thermal, chemical and microstructural aspects.
A. Ghirian, M. Fall
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Strength and ultrasonic properties of cemented paste backfill
Ultrasonics, 2014This paper presents the strength (UCS) and ultrasonic pulse velocity (UPV) properties of cemented paste backfill (CPB) produced from two different mill tailings (Tailings T1 and T2). A total of 240 CPB samples with diameter×height of 5 × 10 cm and 10 × 20 cm prepared at different binder dosages (5-7 wt.%) and water-to-cement ratios (3.97-5.10) were ...
Bayram, Ercikdi +2 more
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Key Engineering Materials, 2009
The strength and shrinkage properties of mortars with different superplasticizer were studied. The results indicated that the saturation point was the best dosage of superplasticizer, at which it not only helped to reach highest paste fluidity with minimum superplasticizer dosage, but also reach the highest mortar strength and comparatively lower ...
Dong Lin +3 more
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The strength and shrinkage properties of mortars with different superplasticizer were studied. The results indicated that the saturation point was the best dosage of superplasticizer, at which it not only helped to reach highest paste fluidity with minimum superplasticizer dosage, but also reach the highest mortar strength and comparatively lower ...
Dong Lin +3 more
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PROPERTIES FOR GENERALIZED CUMULATIVE PAST MEASURES OF INFORMATION
Probability in the Engineering and Informational Sciences, 2018AbstractThe Shannon entropy based on the probability density function is a key information measure with applications in different areas. Some alternative information measures have been proposed in the literature. Two relevant ones are the cumulative residual entropy (based on the survival function) and the cumulative past entropy (based on the ...
Calì, Camilla +2 more
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Field Properties and Performance of Surface Paste Disposal
2017A significant amount of tailings with a high content of cyanide or sulphur arises from the beneficiation process of metallic mines such as gold, silver, copper, and lead. The influence of these hazardous tailings on the environment may have multiple aspects.
Başçetin, A. +3 more
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Safety Properties with Past Terms
1997For some safety properties, whether a state is considered a “bad thing” depends on the preceding states. We discuss in this chapter how to specify and reason about such safety properties. We show that by extending Predicate Logic, the techniques of Chapter 6 can be used for reasoning about arbitrary safety properties.
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Malleable Property Rights and Smooth‐Pasting Conditions
American Journal of Agricultural Economics, 1995In their classic paper on the evolution of property rights in the American West, Anderson and Hill take a historical view of the changing costs of defining and enforcing property rights, and show that "...by expressing the amount of property rights definition and enforcement activity as a function of marginal benefits and marginal costs, and by ...
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PVC Pastes: Properties and Formulation
1984The processing of PVC in paste form constitutes an important, long-established area of the technology of this versatile polymer. Pastes are made with emulsion-type PVC resins (although suspension resins are sometimes added for special effects—see Sections 21.2.2 and 21.3.1 below).
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Marcus Contextual Languages and their Cut-and-Paste Properties
1998We explore the relationship between Marcus contextual languages and CP-languages. We prove that external and internal contextual languages without choice are 2CP- and 3CP-languages. We extend these results to contextual languages with choice, by appropriately defining a concept of selective CP-language.
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