Results 271 to 280 of about 1,148,207 (317)
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The strength and the impact of new media
Proceedings of the 34th Annual Hawaii International Conference on System Sciences, 2005This paper presents a perspective on the impact and use of new media that focuses on the strength of the interpersonal tie connecting communicators. Research shows that more strongly tied pairs communicate more frequently, maintain more and different kinds of relations and use more media to communicate.
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Offshore Technology Conference, 1987
Abstract One of the main uncertainties in design of Arctic offshore structures is the magnitude of ice forces. These loads are dictated by the specific ice related environment and the particular structure under consideration. For areas offshore Eastern Canada, an important load scenario is an open water collision of
R.C. Johnson, J.R. Benoit
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Abstract One of the main uncertainties in design of Arctic offshore structures is the magnitude of ice forces. These loads are dictated by the specific ice related environment and the particular structure under consideration. For areas offshore Eastern Canada, an important load scenario is an open water collision of
R.C. Johnson, J.R. Benoit
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The impact strength of polycarbonate
Journal of Materials Science, 1973Measurements of the Charpy notched impact strength of polydiancarbonate indicate that the polymer can exist in one of two modifications A and B. There is a temperature (below room temperature) above which the A form is unusually tough; the B modification is comparatively brittle at all temperatures.
G. Allen, D. C. W. Morley, T. Williams
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High impact strength as-polymerized PLLA
Polymer Bulletin, 1992As-polymerized poly(L-lactide), (PLLA), has a much higher impact strength than after compression moulding. Several routes have been explored to further increase the impact strength of nascent PLLA. First results on the preparation of composites with carbon fibres, the copolymerization with trimethylene carbonate and epsilon-caprolactone, the block ...
GRIJPMA, DW +3 more
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Impacted corticocancellous allografts: Recoil and strength
The Journal of Arthroplasty, 1999Bone allografts were morcellized using 2 different milling machines (Tracer milling machine and Howex milling machine) producing bone chips with different ranges of sizes. In an in vitro model, each type of bone-graft was impacted with 2 different impaction forces.
G, Ullmark, O, Nilsson
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The Impact of Radiant Heat on the Flexural Strength and Impact Strength in Spruce Wood Bending
2020Thermal degradation influences the wood in a complex way; i.e. it causes the alteration of its properties (weight, volume, shape, and color), as well as the changes of mechanical properties. The main aim of this work is to compare the changes of selected mechanical properties in dependence on the detected weight loss and compare the size of the ...
Anton Osvald, Jaroslava Štefková
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The main purpose of the monograph is to identify the main patterns in assessing the operational reliability of metals on the basis of a mathematical model of unsteady deformation of an isotropic viscoplastic medium, with specified boundary, initial conditions and energy criterion of destruction.
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Impact of Hydrodynamics on Oral Biofilm Strength
Journal of Dental Research, 2009Mechanical removal of oral biofilms is ubiquitously accepted as the best way to prevent caries and periodontal diseases. Removal effectiveness strongly depends on biofilm strength. To investigate the influence of hydrodynamics on oral biofilm strength, we grew single- and multi-species biofilms of Streptococcus oralis J22, Actinomyces naeslundii TV14 ...
Paramonova, E. +4 more
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The impact strength of polycarbonate
Journal of Macromolecular Science, Part B, 1974Abstract An important industrial property of a polymer is its impact strength, the ability to dissipate the energy of an impact, through some mechanical loss process, without breaking. This property may be enhanced through the judicious use of fillers and grafts, yet the reason why one unmodified polymer has a higher impact strength than another is not
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Journal of Scientific Instruments, 1935
A method - employing a self-contained, portable instrument, which is easily manipulated - is described of measuring the resistance of materials to fracture by impact. Results, obtained with transparent fused quartz, are shown and indicate that the method may be used to obtain reliable and consistent measurements.
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A method - employing a self-contained, portable instrument, which is easily manipulated - is described of measuring the resistance of materials to fracture by impact. Results, obtained with transparent fused quartz, are shown and indicate that the method may be used to obtain reliable and consistent measurements.
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