Results 211 to 220 of about 53,461 (266)
Some of the next articles are maybe not open access.
Heart Rhythm, 2015
Using a healthy degree of editorial license, we wanted to set the scene for the excellent study by El Kadri et al in this issue of HeartRhythm by reflecting on how much we have learned about premature ventricular complexes (PVCs) in the span of 5 decades or so.
David J, Callans, Andrew E, Epstein
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Using a healthy degree of editorial license, we wanted to set the scene for the excellent study by El Kadri et al in this issue of HeartRhythm by reflecting on how much we have learned about premature ventricular complexes (PVCs) in the span of 5 decades or so.
David J, Callans, Andrew E, Epstein
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Miscibility Studies of PVC Blends (PVC/PMMA and PVC/PEO) Based Polymer Electrolytes
Solid State Ionics, 2002Abstract The miscibility of PVC blends (PVC/PMMA and PVC/PEO) was investigated. Experiments using viscosimetry and differential scanning calorimetry (DSC) were performed. The presence of attractive forces among polymers was evaluated according to the Sun theory by the determination of the α parameter from the viscosimetric data.
S Ramesh, A K Arof
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Rheologica Acta, 1992
Polyvinyl chloride (PVC) is widely used in industry, but it is difficult to find any extensive discussion of theological relations that describe it. The present paper discusses the behaviour of rigid PVC in extensional deformations at various temperatures.
A. M. Zdilar, R. I. Tanner
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Polyvinyl chloride (PVC) is widely used in industry, but it is difficult to find any extensive discussion of theological relations that describe it. The present paper discusses the behaviour of rigid PVC in extensional deformations at various temperatures.
A. M. Zdilar, R. I. Tanner
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Computers and Biomedical Research, 1971
Abstract A program is described which enables parameters of prematurity, duration and shape to be tested as criteria for PVC detection. A method of detecting artifact has been developed and found reliable. Results using a prototype program tested with tape recorded ECG tracings and using an arbitrary logic are encouraging.
J S, Geddes, H R, Warner
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Abstract A program is described which enables parameters of prematurity, duration and shape to be tested as criteria for PVC detection. A method of detecting artifact has been developed and found reliable. Results using a prototype program tested with tape recorded ECG tracings and using an arbitrary logic are encouraging.
J S, Geddes, H R, Warner
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The rheology of PVC - An overview
Pure and Applied Chemistry, 1977Abstract - Three aspects of the rheological behavior of PVC are considered. These are (a) particulate flow which occurs below the true crystalline melting point, (b) true melting flow which occurs at or above the melting point and (c) the flow of PVC compounds.
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General Hospital Psychiatry, 1985
There is a group of patients who presents with intense anxiety and physical complaints suggestive of cardiac or gastrointestinal disease. These patients are more commonly women and complain of palpitations, lightheadedness, chest pains, and dyspnea. A work-up may reveal positive findings such as extrasystoles and mitral valve prolapse that appear to ...
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There is a group of patients who presents with intense anxiety and physical complaints suggestive of cardiac or gastrointestinal disease. These patients are more commonly women and complain of palpitations, lightheadedness, chest pains, and dyspnea. A work-up may reveal positive findings such as extrasystoles and mitral valve prolapse that appear to ...
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Environmental stress cracking of PVC and PVC-CPE
Journal of Materials Science, 1993The craze initiation of PVC and PVC-CPE in a number of vapour and liquid environments was studied. The observed decrease in the craze-initiation stress could be ascribed to the absorption of components by the PVC and the PVC-CPE matrix. The magnitude of the absorption depends on the activity of the components and on their interaction with the PVC ...
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Information and Software Technology, 1992
Abstract The complexity and scope of telecommunications systems have only aggravated the management and control of versions of subparts of communications software. The Process-oriented Version and Configuration Management (PVC-M) system attempts to address some of the problems of configuration management (CM) faced by telecommunications engineers ...
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Abstract The complexity and scope of telecommunications systems have only aggravated the management and control of versions of subparts of communications software. The Process-oriented Version and Configuration Management (PVC-M) system attempts to address some of the problems of configuration management (CM) faced by telecommunications engineers ...
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The effect of adding processed PVC on the rheology of PVC plastisols
Polymer, 1998In this paper the possibility of recycling the PVC resulting from the rotational moulding of plastisols is studied. Parts of processed PVC were ground with liquid nitrogen into four fractions of different sizes which were added to a plastisol at different concentrations.
J.C. García, A. Marcilla, M. Beltrán
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Miscibility of PVC with chlorinated PE and chlorinated PVC
International Journal of Polymeric Materials and Polymeric Biomaterials, 2003Miscibility of PVC with chlorinated PE and chlorinated PVC was reviewed. The miscible region of chlorine content ranged from 44 wt% to 65 wt%, which was not symmetric to the chlorine content of PVC, 56.7 wt%. Two group contribution methods were used to calculate solubility parameters of polymers.
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