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in the past couple of decades sociocultural theory of sla and its implications in efl contexts have attracted attentions of research circles worldwide and aroused some controversies. firth and wagner (1997) have questioned the principles of the cognitive view which gives importance to mental constructs in favor of sociocultural view which highlights social and contextual constructs. but if soci...
Ultrasonic nondestructive testing based on pulse-echo measurements cannot detect faults if there is no reflected energy. Faults that are hidden behind an obstacle (for instance, another fault), or faults angled along the direction of beam propagation reflect negligible energy and will be difficult to detect. Thus, for a thorough examination of 3-D structures, pulse-echo data is collected from t...
due to extraordinary large amount of information and daily sharp increasing claimant for ui benefits and because of serious constraint of financial barriers, the importance of handling fraud detection in order to discover, control and predict fraudulent claims is inevitable. we use the most appropriate data mining methodology, methods, techniques and tools to extract knowledge or insights from ...
Modern veriication systems such as PVS are now reaching the stage of development where the formal veriication of critical algorithms is feasible with reasonable eeort. This paper describes one such veriication in the eld of fault tolerance. The distribution of single-source data to replicated computing channels (Interactive Consistency or Byzantine Agreement) is a central problem in this eld. T...
Scientific Context. Modern distributed systems can be large-scale (e.g., Internet), dynamic (e.g., Peer-toPeer systems), and / or resource constrained (e.g., wireless sensor networks – WSNs). Those characteristics increase the number of faults which may hit the system. For instance, in WSNs, processes are subject to crash failures because of their limited battery. Moreover, their communications...
Main memory reliability plays a crucial role in overall system reliability. Unfortunately, our collective understanding of the rate, pattern, and impact of memory errors is inadequate and can hinder our ability to innovate new fault-tolerant designs. This paper presents an in-depth study of observed corrected error data from the main memory system of a large server population deployed in data c...
Automatic colorization of gray scale images poses a unique challenge in Information Retrieval. The goal of this field is to colorize images which have lost some color channels (such as the RGB channels or the AB channels in the LAB color space) while only having the brightness channel available, which is usually the case in a vast array of old photos and portraits. Having the ability to coloriz...
oxidative addition reactions of 1,4-diiodo-butane and 1,3-diiodo-propane with [ptme2(ph2phen)]; in which ph2phen=4,7-diphenyl-1,10-phenanthroline, were studied in different solvents such as acetone and benzene.oxidative addition reaction of [pt me2(ph2phen)] with i(ch2)4i and i(ch2)3i produced the [pt me2i(ch2)4(ph2phen)i] (1a) and [pt me2i(ch2)3(ph2phen)i] (1b).all the platinum (iv) products w...
In this paper, in order to increase the efficiency, to reduce the cost and to prevent the failures of wind turbines, which lead to an extensive break down, a robust fault diagnosis system is proposed for V47/660kW wind turbine operated in Manjil wind farm, Gilan province, Iran. According to the acquired data from Iran wind turbine industry, common faults of the wind turbine such as sensor fault...
this ethnographic case study research was carried out in a private school setting in the context of iran. the research tried to explore the analysis and identity construction of a group of learners and teachers along with the content analysis of books on the basis of four types of commodified, political, national and narrative identities. how english language learners and teachers in an informa...
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