857 resultados para Information technology and communications
Resumo:
Forty-five 12- and 13-year-old females attending Grade 7 in North York, Ontario were randomly selected from a group of 100 females who had volunteered to participate in a oneday hands-on workshop called It's Your Choice at Seneca College. The goals of this intervention were to broaden the career horizons of these students and to help them realize the need to continue mathematics and science through high school in order to keep occupational options unlimited. The young women were given a pre- and post-attitude survey to provide background information. In the month following participation in the workshop the students were interviewed in small groups (S students per group) to discover their perceptions of the impact of the workshop. The interviews revealed that participants felt that after the workshop their feelings of self-confidence increased, specifically with respect to working with their hands. Participants felt more aware of the usefulness and importance of the study of mathematics, science and technology, They also felt that It's Your Choice increased their interest in careers in these domains and helped them to see that these careers are viable choices for females. The interviews also revealed that many of the participants felt that in this society their roles and their choices were influenced and probably limited by the fact that they are female.
Resumo:
L’objectif de ce mémoire est de comprendre l’impact de la justice organisationnelle sur l’engagement organisationnel des travailleurs du secteur des technologies de l’information et des communications (TIC). Afin d’étudier ce sujet, trois hypothèses de recherche ont été formulés à partir des théories suivantes : 1- la théorie des attentes d’Adams (1965), 2- la théorie de l’échange social de Blau (1964) et 3- la théorie de Leventhal (1980). La première hypothèse stipule que, toutes choses étant égales par ailleurs, la justice distributive fait augmenter l’engagement affectif des travailleurs du secteur des TIC. La seconde hypothèse indique que toutes choses étant égales par ailleurs, la justice procédurale fait augmenter l’engagement affectif des travailleurs du secteur des TIC. La dernière hypothèse énonce que toutes choses étant égales par ailleurs, la justice procédurale a un impact plus important sur l’engagement affectif des travailleurs du secteur des TIC que la justice distributive. Les données utilisées proviennent d’une enquête par questionnaires électroniques auprès de l’ensemble des nouveaux employés d’une entreprise d’envergure internationale du secteur des TIC ayant un établissement à Montréal. Les employés ont été sondés à trois reprises. Les résultats indiquent que la justice distributive fait augmenter l’engagement affectif auprès des travailleurs, ce qui appuie la première hypothèse. Ils démontrent également qu’il n’existe aucune relation statistiquement significative entre la justice procédurale et l’engagement affectif. Seule la justice distributive a un effet sur l’engagement affectif du travailleur. Les résultats montrent l’existence de relations significatives et positives entre trois des variables de contrôle et l’engagement affectif. Il s’agit de : 1- travail sous supervision, 2- soutien organisationnel perçu et 3- satisfaction intrinsèque.
Resumo:
The research work has been in the area of compounding and characterization of rubbers for use in under water electro acoustic transducers. The study also covers specific material system such as encapsulation materials, baffle material, seal material, etc. Life prediction techniques of under water rubbers in general have been established with reference to more than one functional property. Ranges of passive materials, besides the active sensing material go into the construction of underwater electro acoustic transducers. Reliability of the transducer is critically dependent on these passive materials. Rubbers are a major class of passive materials. The present work concentrates on these materials. Conventional rubbers are inadequate to meet many of the stringent function specific requirements. There exists a large gap of information in the rubber technology of underwater rubbers, particularly relating to underwater electro acoustic transducers. This study is towards filling up the gaps of information in this crucial area. Water intake into rubber is considered as the single most important issue for the long-term performance of rubbers, especially Neoprene. In this study, the cause and effects of a range of parameters affecting the water absorption by diffusion and permeation have been investigated.
Resumo:
Department of Applied Economics,Cochin University of Science and Technology
Resumo:
Rubber has become an indispensable material in Ocean technology. Rubber components play critical roles such as sealing, damping, environmental protection, electrical insulation etc. in most under water engineering applications. Technology driven innovations in electro acoustic transducers and other sophisticated end uses have enabled quantum jump in the quality and reliability of rubber components. Under water electro acoustic transducers use rubbers as a critical material in their construction. Work in this field has lead to highly reliable and high performance materials which has enhanced service life of transducers to the extent of 1015 years. Present work concentrates on these materials. Conventional rubbers are inadequate to meet many of the stringent functional of the requirements. There exists large gap of information in the rubber technology of under water rubbers, particularly in the context of under water electro acoustic transducers. Present study is towards filling up the gaps of information in this crucial area. The research work has been in the area of compounding and characterisation of rubbers for use in under water electro acoustic transducers. The study also covers specific material system such as encapsulation material, baffle material, seal material, etc. Life prediction techniques of under water rubbers in general has been established with reference to more than one functional property. This thesis is divided into 6 chapters.
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This paper introduces the findings of a recent study on the use of information technology (IT) among the quantity surveying (QS) organisations in Hong Kong. The study was conducted through a structured questionnaire survey among 18 QS organisations registered in Hong Kong, representing around 53% of the total number of organisations in the profession. The data set generated from this study provided rich information about what information technology the QS profession used, what the perceived benefits and barriers experienced by the users in the industry were. The survey concluded that although IT had been widely used in QS organisations in Hong Kong, it is mainly used to support various individual tasks of the QS services at a basic level, rather than to streamline the production of QS services as a whole through automation. Most of the respondents agreed that IT plays an important role in the QS profession but they had not fully taken advantage of IT to improve their competitive edge in the market. They usually adopted a more passive “wait and see” approach. In addition, very few QS organisations in Hong Kong have a comprehensive policy in promoting the use of IT within the organisations. It is recommended that the QS profession must recognise the importance of IT and take appropriate actions to meet the challenges of ever-changing and competitive market place.
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A large volume of visual content is inaccessible until effective and efficient indexing and retrieval of such data is achieved. In this paper, we introduce the DREAM system, which is a knowledge-assisted semantic-driven context-aware visual information retrieval system applied in the film post production domain. We mainly focus on the automatic labelling and topic map related aspects of the framework. The use of the context- related collateral knowledge, represented by a novel probabilistic based visual keyword co-occurrence matrix, had been proven effective via the experiments conducted during system evaluation. The automatically generated semantic labels were fed into the Topic Map Engine which can automatically construct ontological networks using Topic Maps technology, which dramatically enhances the indexing and retrieval performance of the system towards an even higher semantic level.
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This article describes work undertaken by the VERA project to investigate how archaeologists work with information technology (IT) on excavation sites. We used a diary study to research the usual patterns of behaviour of archaeologists digging the Silchester Roman town site during the summer of 2007. Although recording had previously been undertaken using pen and paper, during the 2007 season a part of the dig was dedicated to trials of IT and archaeologists used digital pens and paper and Nokia N800 handheld PDAs to record their work. The goal of the trial was to see whether it was possible to record data from the dig whilst still on site, rather than waiting until after the excavation to enter it into the Integrated Archaeological Database (IADB) and to determine whether the archaeologists found the new technology helpful. The digital pens were a success, however, the N800s were not successful given the extreme conditions on site. Our findings confirmed that it was important that technology should fit in well with the work being undertaken rather than being used for its own sake, and should respect established work flows. We also found that the quality of data being entered was a recurrent concern as was the reliability of the infrastructure and equipment.
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There is increasing pressure to capture of video within Higher Education. Although much research has looked at how communication technologies enhance information transfer during playback of video, consideration of technical issues seems incongruous if we do not consider how presentation mode affects information assimilated by, and satisfaction of, learners with a range of individual differences, and from a range of different backgrounds. This paper considers whether a relationship exists between the media and presentation mode used in recorded content, and the level of information assimilation and satisfaction perceived by learners with a range of individual differences. Results aim to inform learning practitioners whether generic delivery is justified, or whether tailoring content delivery enhances the experience of specific learner groups.