To see the other types of publications on this topic, follow the link: A means of electronic communication.
Dissertations / Theses on the topic 'A means of electronic communication'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'A means of electronic communication.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
McGarry, Donald L. "The Electronic Bulletin Board as a Means of Professional Communication Among Physics Teachers." NSUWorks, 1994. http://nsuworks.nova.edu/gscis_etd/716.
Full textAbstract:
Teachers of secondary school physics are often physically isolated from their peers; that is, they do not have as much contact with their physics colleagues as they desire. One reason for this physical isolation is the relatively small population of students enrolled in high school physics courses resulting in small numbers of physics teachers per school. Another is that many physics teachers are teaching physics only part time.
One method of communication among teachers has the potential to improve professional communication among physics teachers. This is the computer operated electronic bulletin board system (BBS). Bulletin board systems and variants have been studied for more than ten years. At least one is being operated primarily for physics teachers.
This study was designed to determine the effectiveness of a BBS as a means of professional communication among physics teachers. Effectiveness was determined by surveying physics teachers in three categories: (1) those who are using a BBS to communicate, (2) those who are members of a physics teachers association, and (3) those who have neither of these formal means of communication available to them. School data (population, graduation requirements, number of physics classes and teachers, etc.) and personal data (years teaching physics, teaching assignment, certification, professional affiliations, etc.) were gathered from all three groups. The experimental group using the BBS was asked to supply additional information about the use of the BBS itself.
Data were gathered using a questionnaire. The BBS users were compared to the other groups to determine whether they are representative of the physics teacher population and whether their desires for additional professional communication are similar to that of the physics teacher population. Survey responses by BBS users about the BBS itself were then used to determine the effectiveness of the BBS as a means of professional communication. Statistically significant differences among the three groups were found and are discussed. Comparisons were also made between the three groups and the population of physics teachers in the United States as presented in an American Institute of Physics report. Of greatest importance, differences exist among the three groups when tested for professional contact with physics colleagues. No differences were found among the three groups when desire for additional professional contact was tested. Survey results for the group of BBS users showed that they were experienced computer users who expressed no unusual difficulties with the mechanics of connecting to the BBS. Many did express difficulties with the BBS as a means of professional communication.
Two important problems discussed are difficulty in using all system options and the small number of active participants using the BBS. BBS users expressed confidence in the system's potential as a professional communications system, but were less enthusiastic about it had served their needs. Overall, the problems experienced by BBS users were not offset sufficiently by the benefits to make the system as effective a means of professional communication as it could be. The potential of the electronic bulletin board system as a means of communication among physics teachers did not live up to its perceived potential for the group of users studied.
2
Malan, Jacques de Villiers. "Microwave data transmission by means of an optimal bandwidth multichannel QPSK system." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/50022.
Full textAbstract:
Thesis (MScEng)--Stellenbosch University, 2004.Full text to be digitised and attached to bibliographic record.
ENGLISH ABSTRACT: The increase in the complexity and functionality of new satellites leads to a growing demand for a digital communication system operating at a much higher bit rate than before. The main purpose of this thesis is to address precisely this problem. The theory as well as a practical high speed system are custom-developed. The goal of this thesis is not to reinvent the wheel, but to use off-the-shelf products as far as possible. This system demonstrates that a very high data rate is not out of reach for a developer with limited funds. The secondary goal is to understand the operation of this communication system. The emphasis is on the inaccuracies in the system. A design tool is created to act as a vehicle for understanding the influence of a single variable on the performance of the entire system.
AFRIKAANSE OPSOMMING: Die toename in die kompleksiteit en funksionaliteit van nuwe satelliete lei tot die groeiende behoefte aan 'n digitale kommunikasiestelsel wat teen "n heelwat hoër bis spoed funksioneer. Die hoofdoel van hierdie tesis is om juis hierdie probleem aan te spreek. Die teorie en 'n praktiese hoëspoed stelsel is ontwikkel. Die doel van die tesis is nie om die wiel te herontdek nie maar om sover moontlik bestaande produkte in die ontwerp van die stelsel te gebruik. Die stelsel demonstreer dat 'n hoëspoed datatempo nie buite die bereik van 'n ontwikkelaar met beperkte fondse is nie. 'n Verdere doelwit is om die funksionering van die kommunikasie stelsel te begryp. Klem is gelê op die onakkuraathede in die kommunikasiestelsel. Ontwikkeling sagteware is geskep as "n metode om die invloed van "n enkele veranderlike op die werkverrigting van die stelsel as geheel te begryp.
3
Naranjo, Judy Lorena Huertas. "Falante: aplicativo de auxílio à fala baseado em tecnologia Android." Universidade Tecnológica Federal do Paraná, 2014. http://repositorio.utfpr.edu.br/jspui/handle/1/1194.
Full textAbstract:
A incapacidade de expressar uma decisão ou sentimento, seja causada por um trauma físico ou psicológico, expõe o indivíduo a impactos pessoais e/ou sociais, colocando-o em situações que podem gerar problemas no desenvolvimento cognitivo ou convívio em sociedade. Visando satisfazer a esta necessidade e empregando tecnologias disponíveis atualmente, desenvolveu- se um aplicativo para tablets e celulares, que auxilia na comunicação mediada e alternativa de crianças com dificuldade em se comunicar oralmente. Método: Com ajuda de profissionais da área de terapia ocupacional, assim como um estudo das primeiras palavras necessárias ao iniciar-se um novo idioma, elaborou-se e classificou-se um banco de frases e expressões que unidas a imagens de comunicação alternativa formam o aplicativo de pranchas de comunicação para dispositivos Android. O sistema evoca por meio sonoro o significado das imagens sensíveis ao toque. Resultados: 400 mensagens contendo imagem e som fazem parte do sistema criado, assim como a possibilidade do usuário editar sua própria prancha com imagens do acervo. Quando se apresentou aos voluntários a interface do sistema Falante, bem como a arquitetura do aplicativo no dispositivo móvel utilizado, 80% foi capaz de utilizar o sistema com apenas alguns minutos de instrução, e 90% utilizou o aplicativo em algum momento da sua terapia, para manifestar necessidades, comprovando os benefícios que técnicas de comunicação em equipamentos portáveis podem trazem às pessoas com dificuldades na comunicação. Conclusão: O protótipo desenvolvido conseguiu emitir de forma eficiente as mensagens faladas correspondentes às imagens selecionadas, tornando efetiva a comunicação de crianças com dificuldades na fala. Foi possível observar emoções positivas expressadas por eles quando seus desejos e necessidades foram compreendidos e imediatamente atendidos pelos interlocutores. Entre os principais sentimentos positivos percebidos pode-se destacar o bem-estar, a calma e ânimo.The inability to express a decision or a feeling, both provoked by a physical or psychological trauma, exposes the individual to personal and social impacts that sometimes may cause problems in his intellect or live in society. Thinking about this need and studying the methods currently available to this group of people, it was developed an application for tablets and smartphones which helps persons with difficulties in oral communication. Method: Collecting information with professionals who use Augmentative and Alternative Communication during their daily work, and making a deep study about the first words and sentences that are necessary when someone wants to be introduced in a new language, we created and classified a database of phrases and expressions. They were associated to the alternative communication symbols in order to be part of a communication board for cellphones and tablets running Android operational system. The application reproduces the sound corresponding to the meaning of the activated image through touch. Results: 400 images with sound make part of the system created as well as the possibility of the user to edit his own board with pictures of the collection. When Falante ́s interface and the architecture of the software used in mobile devices were presented to the volunteers, 80% of them was able to use the system after few minutes of instruction, and 90% used the application at some moment during the therapy to express needs. It proves the benefits that techniques of alternative communication in mobile devices can bring to people with communication difficulties. Conclusion: The prototype was able to reproduce efficiently the sound related to the meaning of the images, resulting in effective communication for children with speech difficulties. It was possible to observe positive emotions expressed by users when their desires and needs were understood and attended. Among the major positive feelings, we point out wellbeing, calmness and courage expressed by the users.
5000
4
Lhuillier, Jean-Baptiste. "Le cyber-actionnaire : adaptation du droit des sociétés à l’évolution des technologies d’information et de communication. Étude en droits européen, français et allemand comparés." Thesis, Paris 10, 2015. http://www.theses.fr/2015PA100142/document.
Full textAbstract:
Dès la loi NRE de 2001, le législateur français s’est intéressé à l’utilisation de la voie électroniqueen période d’assemblée générale des actionnaires. Il laisse au pouvoir réglementaire la liberté deposer les modalités de toute forme d’interaction à distance entre la société anonyme et sesactionnaires. Le régime juridique allemand relatif aux assemblées générales a quant à lui étémodernisé en profondeur par la seule ARUG de 2009. Cette loi transpose la directiveeuropéenne 2007/36/CE du 11 juillet 2007 concernant l’exercice de certains droits desactionnaires de sociétés cotées. Ces textes ont conçu un actionnaire qui utiliserait la voieélectronique pour faciliter l’exercice de ses droits, un « cyber-actionnaire ». Si les textes françaisont bien pour objectif de faciliter l’exercice des droits de l’actionnaire, un nouveau cadre juridiquesemble s’être greffé sur la réglementation connue jusqu’alors. À trop chercher à s’en distinguer,notamment pour marquer la nouveauté, un régime juridique spécial semble s’être constitué, alorsque le droit allemand paraît aisément assimiler la voie électronique aux modes traditionnels decommunication. Or l’on ne fait pas face à une nouvelle catégorie d’actionnaires qui justifierait untraitement particulier. Le cyber-actionnaire n’est qu’un actionnaire exerçant par voie électroniqueses droits relatifs à l’information, à la communication et à la prise de décision collective enpériode d’assemblée générale. Pour s’en convaincre, la présente étude tire le bilan del’implication de la voie électronique en droit des sociétés par actions français et allemandThis study looks into the introduction of electronic means in French and German company law.The French legislator already introduced the possibility of participating in shareholders annualgeneral meetings via electronic means in 2001. The law on New Economic Regulations led thegovernment to set the conditions of all the electronic communication between companies andtheir shareholders. In Germany, mainly the ARUG from 2009 modernized the law related to theAGM, by transposing the European directive from 11th July 2007 on the exercise of certain rightsof shareholders in listed companies. The new laws have a shareholder in mind, who would useelectronic means to facilitate the exercise of his rights before and during the AGM, a “cybershareholder”.While the German law seeks to assimilate the electronic communication with thetraditional correspondence, the varying French decrees seem to distinguish between a new legalregime and a traditional one. However, there is no need for a new category of shareholders,which could justify a special legal foundation. The cyber-shareholder is just a shareholderexercising his rights related to information, communication and collective decision-making in theAGM via electronic means
5
Fenerick, Gabriele Maris Pereira. "A utilização de smartphones no acesso à informação científica por jovens estudantes : um estudo de caso." Universidade Federal de São Carlos, 2017. https://repositorio.ufscar.br/handle/ufscar/8862.
Full textAbstract:
Submitted by Aelson Maciera (aelsoncm@terra.com.br) on 2017-06-08T19:03:16Z
No. of bitstreams: 1
DissGMPF.pdf: 1941310 bytes, checksum: 01f6cf1ecae87f260aa6aa566208a08e (MD5)Approved for entry into archive by Ronildo Prado (ronisp@ufscar.br) on 2017-06-13T19:45:36Z (GMT) No. of bitstreams: 1 DissGMPF.pdf: 1941310 bytes, checksum: 01f6cf1ecae87f260aa6aa566208a08e (MD5)
Approved for entry into archive by Ronildo Prado (ronisp@ufscar.br) on 2017-06-13T19:45:43Z (GMT) No. of bitstreams: 1 DissGMPF.pdf: 1941310 bytes, checksum: 01f6cf1ecae87f260aa6aa566208a08e (MD5)
Made available in DSpace on 2017-06-13T19:49:38Z (GMT). No. of bitstreams: 1 DissGMPF.pdf: 1941310 bytes, checksum: 01f6cf1ecae87f260aa6aa566208a08e (MD5) Previous issue date: 2017-02-20
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Adapting constantly to new scenarios, society develops with great influence of technology. Smartphones, communication technology present in the various social layers, can contribute to the democratization of access to scientific information. Considering the social dimensions that this fact extends, it is understood that it is necessary to carry out studies that establish an association between the theoretical and practical perspectives that involve such questions. Therefore, the objective of this research is to investigate how smartphones effectively contribute to the access to scientific information by young students of the Álvaro Guião State School, located in the city of São Carlos, São Paulo. The justifications for conducting this research are based on the need to understand how these students currently contemplate aspects related to science. The proposed methodology is based on two aspects: 1) theoretical study through a bibliographical survey, comprising the themes: Scientific dissemination; Scientific information; Scientific communication by electronic means; And Information and Communication Technologies; 2) empirical study - developed based on experimental knowledge of young smartphone users. The data collection instrument used in this research was the questionnaire, applied to a group of young people, students of the third year of high school at the Álvaro Guião school, in the city of São Carlos. The results of the research demonstrated that despite different socioeconomic contexts and social environments among groups of students, there is a valorization of scientific information by the dominant cultural capital in the school environment that encourages them to access scientific dissemination in order to have sociability. It is concluded that the availability of open networks added to the increase in the number of young people who have smartphones, effectively contribute to the scientific dissemination and, consequently, to the access of these students to scientific information.
Adaptando-se constantemente a novos cenários, a sociedade se desenvolve com grande influência da tecnologia. Os smartphones, tecnologia de comunicação presente nas várias camadas sociais, podem contribuir para a democratização do acesso à informação científica. Tendo como pressuposto as dimensões sociais as quais este fato se estende, entende-se que seja necessário realizar estudos que estabeleçam associação entre as perspectivas teóricas e práticas que envolvem tais questões. Sendo assim, o objetivo desta pesquisa é investigar como os smartphones contribuem efetivamente para o acesso à informação científica por jovens estudantes da Escola Estadual Álvaro Guião, localizada na cidade de São Carlos, São Paulo. As justificativas para a realização dessa pesquisa apoiam-se na necessidade de compreensão sobre como estes estudantes contemplam atualmente aspectos relacionados à ciência. A metodologia proposta baseia-se em duas vertentes: 1) estudo teórico por meio de levantamento bibliográfico, compreendendo as temáticas: Divulgação científica; Informação científica; Comunicação científica por meios eletrônicos; e Tecnologias da Informação e da Comunicação; 2) estudo empírico – desenvolvido com base em conhecimento experimental de jovens usuários de smartphones. O instrumento de coleta de dados adotado nesta pesquisa foi o questionário, aplicado a um grupo de jovens, estudantes do terceiro ano do ensino médio da escola Álvaro Guião, da cidade de São Carlos. Os resultados da pesquisa demonstraram que apesar de diferentes contextos socioeconômicos e meios sociais entre os grupos de alunos, existe uma valorização da informação científica pelo capital cultural dominante no ambiente escolar que os incentiva ao acesso da divulgação científica a fim de terem sociabilidade. Conclui-se que que a disponibilidade de redes abertas somada ao aumento do número de jovens que possuem smartphones, contribui de forma efetiva para a divulgação científica e, consequentemente, para o acesso destes estudantes à informação científica.
6
Guršnys, Darius. "Voice quality evaluation methods and means for mobile communications." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20081119_135710-84655.
Full textAbstract:
Thesis presents the research of voice frame losses in the GSM. The possibility of evaluation of quality of short duration signals using PESQ algorithm is analysed. New method for preparation of short duration signals for PESQ measurements is proposed. Original method based on quality classes for voice quality evaluation in mobile communications is presented.Disertacijoje nagrinėjami GSM kanale vykstantys balso paketų praradimai. Nagrinėjama galimybė vertinti trumpų balso segmentų kokybę PESQ algoritmu. Pasiūlomas naujas, mažos trukmės balso signalų kokybės vertinimo PESQ algoritmu metodas. Pristatomas originalus balso kokybės vertinimo metodas mobiliojo ryšio sistemoms, paremtas balso kokybės klasėmis.
7
Callahan, Anne (Anne Alexandra). "Other means of communication." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/81656.
Full textAbstract:
Thesis (S.M. in Art, Culture and Technology)--Massachusetts Institute of Technology, Dept. of Architecture, 2013.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 65-68).
"Introduction," pgs. 15-20, see Leo Steinberg, "Other Criteria," in Other Criteria: Confrontations with Twentieth-Century Art (London: Oxford University Press, 1972), 55-91 and Nelson Goodman, "When Is Art?" in The Arts and Cognition, ed. David Perkins and Barbara Leondar (Baltimore: Johns Hopkins University Press, 1977): 11; "Art in the Garden," pgs. 21-34 (I-- H------- F-----), see also Yale Union, "A series of I-- H------ F----- exhibitions," July 2012-July 2013 in Portland, Oregon, accessible online at yaleunion.org; "A brief history of pop, v., with or without out," pgs. 35-44 (persuasive images): "Color will pop with realism"; "In or on the desktop," pgs. 45-52, see Margaret A. Hagen, Varieties of Realism: Geometries of Representational Art (Cambridge: Cambridge University Press, 1986); "Post" "Script," pg. 55; Illustrations, pgs. 56-64; Bibliography see bibliography..
by Anne Callahan.
S.M.in Art, Culture and Technology
8
Burgess, Anthony Keith. "Effective means of improving email communication." Thesis, Loughborough University, 2006. https://dspace.lboro.ac.uk/2134/34655.
Full textAbstract:
Email communication has become an integral part of the communication structure within organisations, but the problems it can cause are rarely assessed. The defects associated with email, which are related to both the quantity and the quality of email need to be understood by employees for them to become more effective users of email. Email training within organisations tends to focus on how to use email as a software package, without looking at when it is appropriate to use email and how to get your message across effectively. This thesis first explores email defects and how they impact on organisations.
9
Dossett, Angela Poe. "Inducing Hypocrisy as a Means of Mass Persuasion." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1249582594.
Full text
10
Abrahams, Rifqah. "Social media as a means of communication with external stakeholders." Thesis, Cape Peninsula University of Technology, 2011. http://hdl.handle.net/20.500.11838/2314.
Full textAbstract:
Thesis (MTech (Public Relations Management))--Cape Peninsula University of Technology, 2011.This research focuses on whether social media is an effective means of communication to external stakeholders and investigates communication between Cape Peninsula University of Technology (CPUT) to its student-stakeholder group on four levels of interaction; namely institution, faculty, department and subjects. It provides answers to the questions, "How does CPUT communicate to students?" "What is the CPUT student-stakeholder's preferred method of communication?" and "What content does the CPUT student-stakeholder want to hear about?" to answer the bigger question, "Is social media an effective means of communication to CPUT students?" Using a conceptual framework based on Edward Freeman's work on stakeholder communication and Grunig's communication theory, the research considers the role that social media could play in the communication mix; whether CPUT should communicate to students using a medium on which they are already active; as well as what is/are an appropriate method/s of communication to reach student-stakeholders. Findings include the students' perception of social media as well as the state of communication from CPUT to the students and the platform/s the student-stakeholder would prefer. Further research is recommended to consider the use of a mobile platform for communication to students.
11
Laughlin, Leo. "Full duplex wireless communication by means of electrical balance duplexing." Thesis, University of Bristol, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.702210.
Full textAbstract:
The mass adoption of smartphones has led to a huge demand for wireless services, and 5G mobile is expected to deliver a 1000 fold capacity increase over the coming decade. However, this increase in demand will not been accompanied by a corresponding increase in the spectrum allocated for mobile networks, and therefore significant technological advances . will be required in order to reach this goal. Furthermore, due to the fragmented availability of spectrum globally, the number of frequency bands in use around the globe continues to increase, and thus a tunable radio frequency front end is required to enable roaming and cost effective manufacture. Duplexing techniques based on self-interference cancellation can increase spectral efficiency by enabling simultaneous transmission and reception on the same frequency, and have the potential to replace fixed frequency duplexing filters to create a tunable radio frequency front end. This thesis investigates self-interference cancellation technologies in the context of frequency division and division free duplexing in future mobile devices. The focus of this thesis is the Electrical Balance Duplexer (EBD), which implements a form of self-interference cancellation to provide high transmit-to-receive (Tx-Rx) isolation whilst allowing simultaneous transmission and reception through a single antenna. This contribution offers several advancements concerning the design and operation of the EBD, placing emphasis on investigating practical issues that may affect the suitability and performance of this circuit in mobile device applications. The results and analysis presented in this thesis have demonstrated that time-domain and frequency domain antenna impedance variation can have a substantial impact on the Tx-Rx isolation achieved by the EBD. A realistic evaluation of EBD isolation bandwidth is presented, and a novel method for maximising isolation is proposed. It is shown that circuit adaptation is required to mitigate time-domain antenna impedance variation which arises due to environmental interaction, and requirements for antenna impedance tracking in user interaction and indoor mobile scenarios are determined. A novel EBD circuit architecture combining passive and active cancellation methods is proposed and implemented in hardware, demonstrating a substantial improvement by providing >80 dB of isolation over an 80 MHz bandwidth. This thesis also presents an in-depth theoretical analysis of self-interference coupling in non-ideal EBDs, and from this derives a novel circuit adaptation algorithm which can achieve the required accuracy but is orders of magnitude faster and computationally less expensive than existing methods. It can be concluded that the EBD is a promising candidate technology for implementing tunable duplexing functionality in mobile devices, and that the environmental effects and non-ideal circuit characteristics which are typical of this application can be successfully mitigated.
12
Smith, Farouk. "Total ionizing dose mitigation by means of reconfigurable FPGA computing." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/713.
Full text
13
Lombo, Sipho. "E-communication in knowledge management : where e-communication could take organisations." Thesis, University of Zululand, 2004. http://hdl.handle.net/10530/887.
Full textAbstract:
Submitted to the Faculty of Arts in fulfillment of the requirements for the degree of Doctor of Philosophy (D.Phil) in the Department of Communication Science at the University of Zululand, South Africa, 2004.This dissertation focuses on the contribution of electronic communication (e-Communication) to knowledge management. It is based on an empirical survey of knowledge management practitioners in the private, public and NGO sectors in KwaZulu-Natal, South Africa. The major findings of this study are (1) that many knowledge management practitioners have not received any formal training in knowledge management, (2) that for most of them their practices are not informed by explicit knowledge management policies, (3) that there is no culture of sharing knowledge established within particular organisations, and finally (4) that knowledge managers are not using e-learning facilities to keep their knowledge of knowledge management current.
14
Cremers, Jonathan. "Electronic communication in heterometallated porphyrin oligomers." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:2a9d43e5-1700-4f74-be65-288fdcca1357.
Full textAbstract:
This thesis presents the synthesis and characterisation of a range of heterometallated porphyrin oligomers and other novel 3D π-conjugated porphyrin nanostructures. Subsequently, their physical organic properties were evaluated which revealed some fascinating electronic properties. Chapter 1 summarises some of the work done in the Anderson group on porphyrin nanostructures and reviews the literature regarding heterometallated porphyrin oligomers. In addition it introduces the main concepts and techniques used in the remainder of the thesis. In Chapter 2 the stabilities of a family of four linear porphyrin pentamer complexes are determined by UV-vis-NIR titrations and analysed using chemical double-mutant cycles which reveal that the binding energy of the copper centre to an axial pyridine ligand is -6.2 kJ mol-1. Subsequently, the Zn-Zn-Cu-Zn-Zn pentamer is used in the synthesis of a heterometallated 10-porphyrin nanoring. Chapter 3 will describe the investigation of quantum interference phenomena in a bis-copper six-porphyrin nanoring by using EPR spectroscopy. We show that the exchange coupling between two spin centres is increased by a factor 4.5 in the ring structure with two parallel coupling pathways as compared to an otherwise identical system with just one coupling path. In Chapter 4 the syntheses of three isomers of the bis-copper 6-porphyrin nanoring are described. DFT calculations have indicated potential destructive interference phenomena in one of the isomers which would allow for the formation of a molecular system with behaviour resembling that of a hypothetical molecular interferometer. Chapter 5 reports on the template-directed synthesis of a π-conjugated 14-porphyrin nanoball. This bicyclic structure consists of two intersecting nanorings of 6 and 10 porphyrin units. Fluorescence up-conversion spectroscopy experiments demonstrate that electronic excitation delocalises over the whole 3D π-system within 0.3 ps if the nanoball is bound to its templates or within 5 ps if the nanoball is empty. In Chapter 6 the synthesis and characterisation of a D4h symmetric analogue of the porphyrin nanoball is described. The structure consists of ten porphyrin units arranged as two perpendicular 6-porphyrin nanorings intersecting at two porphyrins. In the synthesis, a combination of magnesium and zinc porphyrins are used which allows for the introduction of a selective demetallation method crucial for accessing this novel structure.
15
Jackson, Thomas William. "The cost effectiveness of electronic communication." Thesis, Loughborough University, 2001. https://dspace.lboro.ac.uk/2134/7555.
Full textAbstract:
Electronic communication is becoming an integral part of the communication structure within organisations, but the costs and benefits are not being assessed. Communication by email is usually assumed to be an efficient and effective means of sending messages. However, on analysis the process is seen to be much more complex and much less efficient than is normally assumed. Communication is carried out in many different forms, but the common underlying motive of communication is to improve working practices and to increase productivity. As communication pervades nearly everything we do, even small improvements in the effectiveness and cost of our communication processes can have significant benefits. The aim of this research was to analyse the cost effectiveness of using email and to suggest ways in which the cost effectiveness can be improved. A number of studies have been conducted into the cost effectiveness of email within organisations. The studies were carried out mainly at the Danwood Group, the company sponsoring the author's PhD research. The Danwood Group has just over 500 employees at 19 sites around the UK and its head office is based in Lincoln, where all of the email case studies in this thesis where undertaken. The Danwood Group retails office equipment, predominately photocopiers. Email behaviour was monitored by the use of software at the Danwood Group. This raised a number of questions on the ethical issues of electronic monitoring. This thesis explores these issues and proposes a set of guidelines to allow electronic monitoring within strict professional and ethical guidelines. The Danwood Group studies examined how and when email was used. It was found that, when the company first started using email, over two thirds of messages were non-business-related, though this dropped to less than half in a few months. It was also found that many messages could be delivered in one line of text. A one-line message service was introduced and this was found to save employee time for both senders and receivers of the messages. A costing formula was developed measuring the human cost of operating email messaging. The final study was to determine how long it took employees to recover and return to normal work after an email interruption and this was compared with published data for telephone interrupts. From these results a set of guidelines were developed to enable companies to make the most efficient use of email. The thesis concludes by identifying further areas of research into email usage that would help give a better understanding of methods to enable email to become even more cost effective.
16
Lobel, Joshua M. "Building information : means and methods of communication in design and construction." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/43747.
Full textAbstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Architecture, 2008.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Includes bibliographical references (p. 73-77).
Architects are trained and practiced in the means and methods of design. These are distinct from the physical means and methods of construction, which have traditionally been in the hands of contractors. The successful realization of construction does not necessitate or rely on a direct link between the processes of design and construction. However, the constructibility of a design is dependent on an effective means of communicating between the two. This thesis illustrates that the perceived complexity of constructibility is often predicated on the efficacy of communication between the designer and the contractor. I present three models of communication: a linear transmissive model similar to that of Shannon and Weaver, a "speech-circuit" model based on that of Saussure, and a semiotic-constructionist model derived from Peirce and Papert. Through interviews, observations, and experiments with practicing architects and architecture students, I investigate the implications of these models on the perceived and contractual roles and responsibilities of architects and contractors. My findings suggest that in design, communication is also an act of design and construction. Best illustrated by the constructionist model of communication, acts of making and re-making are fundamental to the way that architects and contractors relate to design information. The automation of these acts through emerging technologies - such as BIM - lead to increased reliance on fixed data constructs in lieu of dynamic, individual interpretations of information. This can result in the loss of expert knowledge which does not fit a standardized model, and the dis-integration of meaningful communication between design and construction information.
Joshua M. Lobel.
S.M.
17
Smith, David. "Satellite data transmission by means of a multi-channel system." Thesis, Link to the online version, 2006. http://hdl.handle.net/10019/1213.
Full text
18
Fregulia, Jeanette Marie. "Making their own way : women of means in late Renaissance Milan /." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3276952.
Full textAbstract:
Thesis (Ph. D.)--University of Nevada, Reno, 2007."May, 2007." Includes bibliographical references (leaves 192-209). Online version available on the World Wide Web. Library also has microfilm. Ann Arbor, Mich. : ProQuest Information and Learning Company, [2007]. 1 microfilm reel ; 35 mm.
19
Flesher, Theresa M. "Nonverbal communication cues in the electronic medium." [Denver, Colo.] : Regis University, 2006. http://165.236.235.140/lib/TFlesher2006.pdf.
Full text
20
Thomaz, Andrea L. "Understanding implicit social context in electronic communication." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/61858.
Full textAbstract:
Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2002.Includes bibliographical references (p. 71-72).
Artificial Intelligence (Al) has shown competence in helping people with complex cognitive decisions like air traffic control and playing chess. The goal of this work is to demonstrate that Al can help people with social decisions. In this work Artificial Intelligence of Social Networks is used to improve human-human communication, recognizing the social characteristics of human relations in order to achieve a more natural online communication interface. Can a computer learn to understand the value of communication? It is shown here that a first attempt at social context classification performs with almost 70% reliability. Could a computer use this to help a person relate to other people through technology? The addition of social context to an email interface is shown to have a positive effect in a user's online communication behavior. Email is a tool that people use practically every day, making an implicit statement about their relationships with other people, and providing an opportunity for a computer to learn about their social network. Furthermore, over the years people have come to utilize and depend on email more in their daily lives, but the tool has hardly changed to help people deal with the overwhelming amount of information. Many of the social cues that allow people to naturally function with their social network are not inherent or obvious in Computer Mediated Communication (CMC). This work offers automatic social network analysis as a means to bring these cues to CMC and to foster the user's coherent understanding of the people and resources of their communication network.
by Andrea Lyn Lockerd.
S.M.
21
Cameron, Nancy G. "From ‘To’ to ‘Send’: Professional Electronic Communication." Digital Commons @ East Tennessee State University, 2010. https://dc.etsu.edu/etsu-works/7069.
Full text
22
Britto, Renata Carvalho. "Branding and communication on Twitter." Thesis, Wichita State University, 2011. http://hdl.handle.net/10057/3944.
Full textAbstract:
New media developed in the 21st century allows for conversations and interactions among people and organizations online. This capacity is referred to as social media (Safko & Brake, 2009). Twitter is the most active social media tool and influences the use of other social networks (Webster, 2010). Companies are entering Twitter to engage in conversations with their publics and modifying their branding strategies to work within this new medium (Jansen et al., 2009). This study attempts to understand how news media companies that use traditional media, are integrating social media branding strategies into their efforts to engage consumers. The main research question posed in this study is: How are news media companies using branding strategies to create a relationship with their target audiences through social media? To answer this research question, a literature review was developed, which presented definitions and theories of media, social media and branding. Additionally, data were analyzed from six news media companies present on Twitter through a thematic analysis. Specifically, tweets posted by three national and three local news media organizations collected over a two month period from February 1 – April 1, 2011 were analyzed considering premises and theories from McLuhan and Powers (1989); McLuhan (1994; 2002), Ong (2002), Poster (1995), Lévy, Li and Bernoff (2008), Jansen, Zhang, Sobel, and Chowdury (2009), Kotler and Keller (2006), Hatch & Schultz (2002), and others. The results showed that news media companies are communicating to their audience in three manners: spreading information, promoting marketing strategies, and generating conversations. This study also presents the potential that companies have to develop an organizational identity on Twitter and social mediaThesis (M.A.)--Wichita State University, College of Liberal Arts and Sciences,Elliot School of Communication
23
Perricos, Constantine. "Head gestures as a means of human-computer communication in rehabilitation applications." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362859.
Full text
24
Morello, Glenn R. "Stereoselectivity in organometallic catalysis : analysis by means of computational and mathematical chemistry /." Electronic version (Microsoft Word), 2003. http://dl.uncw.edu/etd/2003/morellog/glennmorello.doc.
Full text
25
Kemp, William M. "A comparison of the simultaneous communication evaluation with the sign communication proficiency interview." Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/77904.
Full textAbstract:
There is a need to identify a specific test to assess one's Simultaneous Communication skills (a combination of Sign Language with the use of spoken English). The Simultaneous Communication Evaluation and the Sign Communication Proficiency Interview were examined to compare and to determine the reliability and validity for the latter. The Illinois Course Evaluation Questionnaire was used as an independent variable.
Multitrait-multimethod methodology (Campbell and Fiske, 1959) was used to examine construct validity of the two methods of assessing the twenty-eight subjects' communication skills, as well as to show their reliability. The Illinois Course Evaluation Questionnaire was used as an observation tool to obtain dichotomized scores used to measure subjects' performance in the classroom as compared with the two methods of assessing the subjects' signing skills.
Based on the findings of this research, the following conclusions seem justified.
A. The Receptive portion of the Simultaneous Communication Evaluation generally showed a weak relationship to the other tests with the exception of the Sign Communication Proficiency Interview's retest, with which it showed only a moderate relationship. This indicates that the Receptive portion may not be a valid way of assessing Sign Language competency.
B. Since the Sign Communication Proficiency Interview's test-retest and the inter-rater reliability indicators are moderately high, with their levels of significance being lower than .05, this method of testing may be regarded as an at least moderately reliable means of assessing the faculty members' skills in the use of Simultaneous Communication.
C. The correlations for the Simultaneous Communication Evaluation and the Sign Communication Proficiency Interview's test and retest are .8058 and .5477 respectively. The Illinois Course Evaluation Questionnaire, in general, showed negative correlations with the first two tests with the probability of error being higher than the acceptable .05. One may conclude from this that there is no relationship between the ability to teach and the ability to use Simultaneous Communication.
It is anticipated that the outcome of this study will have an impact on various programs and agencies that provide educational and/or social services to the hearing impaired in the United States. At present there is no established, standardized method of evaluating professionals Sign Language skills and this study may well set a precedent in this area.Ed. D.
26
Hoff, Erik Stjernholm. "Distributed Generation - Power Electronic Converters, Communication and Control." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Information Technology, Mathematics and Electrical Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-1620.
Full textAbstract:
This thesis tries to explain the changes in the control of power electronic converters that are possible by the use of communication. Many of the renewable energy sources such as photovoltaic panels are geographically dispersed. The power rating per generator is therefore typically low. If this kind of energy source should dominate an electrical grid, the number of generators must be high. There should also be means of controlling this large number of generators simultaneously and safely. The cost of safe communication may be too high compared to the power contribution of a single generator. The Internet offers a low-cost solution, but it cannot guarantee real-time properties. Similarly to the Internet itself, it is shown how communication errors can be detected and handled in a safe manner by the end-system, in this case the generator. The generator can detect a communication timeout, and change control algorithms in order to guard itself and the connected electricity grid. When necessary, it can also disconnect and work as a local standalone power supply. In order to be able to supply all kinds of loads, the generator (in this case an inverter) is primarily voltage controlled. This results in challenges concerning current distortion. The use of feed-forward for cancellation of common grid voltage harmonics is discussed, simulated and measured. An anti-islanding algorithm for voltage controlled inverters is also developed, simulated and measured in this thesis. A DC/DC-converter for optimized connection of a photovoltaic panel is built, exploiting the photovoltaic panel properties to reduce the size and the losses significantly. Although most contributions are connected to details and parts of the system, the interactions between communication and control are emphasized.
27
Hunt, Rex A. E., of Western Sydney Hawkesbury University, and of Agriculture Horticulture and Social Ecology Faculty. "Philomythes : religious narrative communication in an electronic age." THESIS_FAHSE_XXX_Hunt_R.xml, 1993. http://handle.uws.edu.au:8081/1959.7/331.
Full textAbstract:
It is the author’s thesis that religious communication which is shaped by narrative has consequences that are different from communication based on persuasion by argument. While ‘narrative’ can include both written and spoken communication, this study attempts to concentrate on oral narrative communication in a group situation within a local church congregation. It is also an assumption of this thesis that there is a common belief that narrative is subordinate to rhetoric. This thesis sets out to suggest otherwise: that while both provide distinctive ways of ordering experience the two are irreducible to one another. Thus there is a need to reimagine the narrative communication debate. This thesis suggests this reimagining be called ‘narrative/symbolic’ – thus emphasising its narrativity. Narrative /symbolic communication : encourages reflection but is different from analytical, rationalistic thinking; is heuristic by nature, searching for likely accounts rather than definitions and conclusions; establishes an awareness of/ communion with the world of the other rather than just seeking after/interpreting meaning; has potential to broaden human conversation by repudiating mere individualism; and, is more faithful to the general shape of the religious tradition which is Christianity. Such a ‘style’ should shape religious communication in the electronic media-saturated age.Master of Science (Hons)
28
Hunt, Rex A. E. "Philomythes : religious narrative communication in an electronic age /." [S.l. : s.n.], 1993. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20031204.114518/index.html.
Full text
29
Laval, Ernesto. "Shared construction of knowledge through electronic mail communication." Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268712.
Full text
30
Kandies, Jerry. "Electronic mail : attitudes, self-efficacy, and effective communication /." This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-10192006-115608/.
Full text
31
Kandies, Jerry T. "Electronic mail: attitudes, self-efficacy, and effective communication." Diss., Virginia Tech, 1994. http://hdl.handle.net/10919/39999.
Full textAbstract:
The purpose of this study was (a) to investigate the functional use of e-mail in a university setting and the relationship of attitudes toward and self-efficacy with email technology, and (b) to evaluate writing effectiveness in an electronic medium. The study also sought to determine if certain personal characteristics could serve as predictor variables for explaining e-mail use, attitudes toward email, and self-efficacy with e-mail technology.
The population of interest was the teaching faculty at Virginia Polytechnic Institute and State University who had a published e-mail address. A random sample of 500 faculty were sent a survey via campus mail. A total of 262 usable responses provided data for statistical treatment which included factor analysis and multiple regression. Additionally, 30 self-selected respondents provided copies of e-mail messages they had written. These messages were rated holistically for writing effectiveness, and the ratings were examined for their relationship with the extent of e-mail use, attitudes toward e-mail, and self-efficacy with e-mail technology.
The items on the attitude toward e-mail scale clustered into two factors, "Usefulness," and "Comfort/Anxiety." The items on the e-mail purposes of use scale also clustered into two factors, "Task Use," and "Social Use." These factors were similar to the ones on the instruments from which this study's instrument was adapted.
The results of the regression analyses indicated that several of the variables were significant predictors of e-mail use, attitudes toward e-mail, and self-efficacy with e-mail technology. An attitude of e-mail's usefulness and self-efficacy with e-mail technology were significant predictors of the extent of e-mail task and social use. Self-efficacy was a significant predictor of positive attitudes of usefulness and comfort. Age was a significant predictor of social use of e-mail as well as of a positive attitude of e-mail's usefulness. Years e-mail had been used was a significant predictor of the extent of e-mail use and of self-efficacy. Higher ranking teaching faculty had more positive attitudes of e-mail's usefulness.
The results of analyses of holistic ratings indicate no significant correlations existed among the variables. Recommendations for instruction and for further research are described.Ph. D.
32
Hólmgeirsson, Jón Helgi. "Enhancing the Performer-Spectator Communication at Electronic Concerts." Thesis, Malmö högskola, Fakulteten för kultur och samhälle (KS), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-22468.
Full textAbstract:
During the traditional electronic musical performances there is a lack of communication between the performer and spectator. Communication is necessary to a performance as it is a social act, created both by the performer, as well as the spectator. Through exploring the augmentation of visibility and physicality in regards to the electronic performance I attempt to enhance that communication through a concept called Sonicality, created out of the findings of this paper, that addresses the use of tactile vibrations, controlled by a performer in a visible manner, received on the spectator’s body, in relation to the music heard. Through the validation of this concept I manage to get an insight into the spectators’ needs and desires, grounding the validity of the concept as something that augments experience, interaction and understanding, enhancing the performer-spectator communication.
33
Laguda, W. B. "Electronic government, information communication technologies and social inclusion." Thesis, University of Salford, 2003. http://usir.salford.ac.uk/26767/.
Full textAbstract:
The UK's E-Government agenda was found on the principles of improving the quality of services offered to the public by Central and Local Government. This would be made possible through various national projects. Most notable were the use of Customer Relationship Management (CRM) and Community Informatics involving the use of public libraries and outreach workers. However there is growing fear on the emergence of inequalities between the information rich and information poor termed the 'digital divide'. This has prompted the subject of research - to explore the reality of e-government in reducing social exclusion. Both qualitative and quantitative research techniques are used to this end. Analysis is made on the use of CRM in 27 Local Authorities including a detailed case study at Newham Council and a public survey in Salford. Universal access and social inclusion is tackled through the analysis of public libraries in Salford offering ICT services. In addition the effects of free ICT courses organised by Salford City Council on a number of community groups was included in the survey. The findings confirm the widespread use of CRM and reveal a series of barriers to its success. These include a lack of skilled CRM staff, inefficiencies in channel management, high emphasis on technology, and low levels of ICT usage. Results from the public library survey also revealed some barriers. Inadequate staffing levels, inappropriate training, and lack of IT support were all identified. In addition the library failed to attract novices and new users. The evaluation of Community Informatics in Salford showed the problems faced by outreach workers. As well as providing some academic research in a field lacking representation in IS research (due largely to recent emergence), the thesis also contributes to E-Government practice by, highlighting issues often over looked in its implementation, addressing its failures, and providing some reasoning on the current situation.
34
Poirrier, Julien. "Electronic Mitigation of Polarization Mode Dispersion." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/34469.
Full textAbstract:
Polarization Mode Dispersion induces polarization dependent propagation. Consequently it generates a multiple imaging of the light pulse carrying the information. Its first order appears as a dual path fading channel of Maxwellian statistics. It results in harmful impairments that prevent the upgrade and installation of high bit-rate systems. The random process PMD exhibits a strong frequency dependence, so that its amelioration requires channel by channel, non-linear, adaptive mitigation. Electronic mitigation appears as a very attractive solution to overcome the limit set by the PMD.
Consequently, we considered the implementation of these solutions at the receiver in the electrical domain. We verified that these linear and non-linear equalization techniques can greatly reduce the power penalty due to PMD. Equalization's performance depends highly on the type of systems considered. For the two main types of systems: thermal noise limited systems and systems exhibiting ASE (systems using optical amplifiers), we demonstrated and quantified the induced improvement (measured as power penalty reduction). The most sophisticated technique that we considered (NLC+FDE) handles any kind of first order PMD within a 4 dB margin in the thermal noise limit. This extended to a 11 dB margin in the presence of ASE. This comes from the limitation set by the signal dependence of the noise. In fact, these DSP techniques do a better job at reducing very high penalty. Consequently, for a power and ISI limited link, it may be required to associate to electronic solutions optical compensation in order to reach acceptable performance. On the other hand, for links having large power margin or exhibiting reasonable PMD, electronic techniques appear as an easy, inexpensive and convenient solution.
We derived in this work the bounds to NLC performance in the presence of ASE. Therefore, we extended the usual results of the thermal noise limit to the particular case of signal dependent noise. We also made clear that optical systems, because of their noise specificities can not be studied or designed as others links. Notions such as eye opening, SNR and ISI need to be carefully defined and adapted to this case.
We have provided in this work PMD dependent power penalty map for known systems. Given the link's statistics and characteristics, one can determine, following our structure, which mitigation techniques allow upgrade.Master of Science
35
Tang, Chuanyi. "Understanding the Electronic Word-of-Mouth Communication Process: Communication Effectiveness and Analytic Tools." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/194930.
Full textAbstract:
Electronic word-of-mouth (eWOM) has increasingly become an important topic in marketing and consumer research. However, theory construction and methodology development in this area are still in their infancy. This leaves some basic and important questions unanswered including whether eWOM communication is effective, what roles are played by different communication cues, and how valuable information from text reviews can be generated. This study intends to answer these fundamental questions.Based on the Brunswik's Len Model, this study developed the Process Model of eWOM Communication. It extends the Brunswik's Lens Model in several important ways and provides a systematic tool to examine the effectiveness of eWOM communication processes. Furthermore, a simplified model of eWOM communication was developed to test the validity of automatic text analysis as a promising tool in studying eWOM communication.Two focus group interviews and a throughout literature review were conducted first to identify the communication cues employed by eWOM partners. Then, two web-based self-administered surveys were carried out to collect data from both eWOM senders and readers. Last, the data from both eWOM senders and readers were matched, forming a final dataset with 90 reviews. Correlations, regressions, and path analyses were employed to evaluate the models and test the hypotheses.Results showed that eWOM communication is effective, and the relative strength of information flow varies in different eWOM communication links when communicating different types of information.This study identified a list of eWOM communication cues and found that consumers employ different cues in communicating different types of information. EWOM readers' inference structure in decoding may not exactly mirror eWOM senders' encoding structure. Moreover, communication cues especially verbal cues play an important role in eWOM communication and explain additional variance in eWOM partners' intentions and perceptions beyond and above the star ratings. In general, negative emotion words are the most important cues across various situations.In addition, this study provides initial evidence for the validity of automatic text analysis in studying eWOM. Linguistic indicators such as Negations, Negative Emotions, and Money can explain additional variance in eWOM partners' attitudes and emotions beyond and above the star ratings.
36
Allen, Katherine M. "Dark solitons in optical communication systems." Thesis, Aston University, 1995. http://publications.aston.ac.uk/8098/.
Full textAbstract:
This thesis presents experimental and theoretical work on the use of dark optical solitons as data carriers in communications systems. The background chapters provide an introduction to nonlinear optics, and to dark solitons, described as intensity dips in a bright background, with an asymmetrical phase profile. The motivation for the work is explained, considering both the superior stability of dark solitons and the need for a soliton solution suitable for the normal, rather than the anomalous (bright soliton) dispersion regime. The first chapters present two generation techniques, producing packets of dark solitons via bright pulse interaction, and generating continuous trains of dark pulses using a fibre laser. The latter were not dark solitons, but were suitable for imposition of the required phase shift by virtue of their extreme stability. The later chapters focus on the propagation and control of dark solitons. Their response to periodic loss and gain is shown to result in the exponential growth of spectral sidebands. This may be suppressed by reducing the periodicity of the loss/gain cycle or using periodic filtering. A general study of the response of dark solitons to spectral filtering is undertaken, showing dramatic differences in the behaviour of black and 99.9% grey solitons. The importance of this result is highlighted by simulations of propagation in noisy systems, where the timing jitter resulting from random noise is actually enhanced by filtering. The results of using sinusoidal phase modulation to control pulse position are presented, showing that the control is at the expense of serious modulation of the bright background. It is concluded that in almost every case, dark and bright solitons have very different properties, and to continue to make comparisons would not be so productive as to develop a deeper understanding of the interactions between the dark soliton and its bright background.
37
Graell-Colas, Mercè. "Exploring visual means for communication and collaboration in multidisciplinary teams an interpretation and implementation for design education /." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1230621313.
Full text
38
Delgado, Diana. "Subsitution of stimulus functions as a means to distinguish among different types of functional classes /." abstract and full text PDF (free order & download UNR users only), 2005. http://0-wwwlib.umi.com.innopac.library.unr.edu/dissertations/fullcit/1430443.
Full textAbstract:
Thesis (M.A.)--University of Nevada, Reno, 2005."May, 2005." Includes bibliographical references (leaves 47-49). Online version available on the World Wide Web. Library also has microfilm. Ann Arbor, Mich. : ProQuest Information and Learning Company, [2005]. 1 microfilm reel ; 35 mm.
39
Harkin, Kathleen Ann. "Mobile electronic conferencing system." Master's thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-01262010-020154/.
Full text
40
Jiang, Junyi. "Optical wireless communication systems." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/387239/.
Full textAbstract:
In recent years, Optical Wireless (OW) communication techniques have attracted substantial attention as a benefit of their abundant spectral resources in the optical domain, which is a potential solution for satisfying the ever-increasing demand for increased wireless capacity in the conventional Radio Frequency (RF) band. Motivated by the emerging techniques and applications of OW communication, the Institute of Electrical and Electronics Engineers (IEEE) had released the IEEE standard 802.15.7 for short-range optical wireless communications, which categorised the Physical layer (PHY) of the OW communication into three candidate-solutions according to their advantages in different applications and environments: 1) Physical-layer I (PHY I): Free Space Optical (FSO)communication employs high-intensity Light Emitting Diodes (LEDs) or Laser Diodes (LDs) as its transmitter. 2) Physical-layer II (PHY II) uses cost-effective, low-power directional white LEDs for the dual function of illumination and communication. 3) Physical III (PHY-III) relies on the so-called Colour-Shift Keying (CSK) modulation scheme for supporting high-rate communication. Our investigations can be classified into three major categories, namely Optical Orthogonal Frequency Division Multiplexing (OFDM) based Multiple-Input Multiple-Output (MIMO) techniques for FSO communications in the context of PHY I, video streaming in PHY-II and the analysis and design of CSK for PHY-III. To be more explicit, in Chapter 2 we first construct a novel ACO-OFDM based MIMO system and investigate its performance under various FSO turbulence channel conditions. However, MIMO systems require multiple optical chains, hence their power consumption and hardware costs become substantial. Hence, we introduced the concept of Aperture Selection (ApS) to mitigate these problems with the aid of a simple yet efficient ApS algorithm for assisting our ACO-OFDM based MIMO system. Since the channel conditions of indoor Visible Light Communication (VLC) environments are more benign than the FSO-channels of Chapter 2, directional white LEDs are used to create an “attocell” in Chapter 3. More specifically, we investigate video streaming in a multi-Mobile Terminals (MTs) indoor VLC system relying on Unity Frequency Reuse (UFR) as well as on Higher Frequency Reuse Factor based Transmission (HFRFT) and on Vectored Transmission (VT) schemes. We minimise the distortion of video streaming, while satisfying the rate constraints as well as optical constraints of all the MTs. In Chapter 4 we analyse the performance of CSK relying both on joint Maximum Likelihood (ML) Hard-Detection (HD), as well as on the the Maximum A posteriori (MAP) criterion-based Soft-Detection (SD) of CSK. Finally, we conceive both two- stage and three-stage concatenated iterative receivers capable of achieving a substantial iteration gain, leading to a vanishingly low BER.
41
Tan, Ee Ling J. "Singapore airlines a study in exemplary crisis communication /." Diss., Click here for available full-text of this thesis, 2006. http://library.wichita.edu/digitallibrary/etd/2006/t028.pdf.
Full textAbstract:
Thesis (M.A.)--Wichita State University, College of Liberal Arts and Sciences."May 2006." Title from PDF title page (viewed on October 19, 2006). "Copyright 2006 by Ee Ling J. Tan."--p.ii. Includes bibliographic references (leaves 50-53).
42
Rodriguez, Stuti Mehta. "Diversity Revealed: Photovoice Methodology as a Means for Understanding How Teens Construct Diversity." Thesis, University of North Texas, 2011. https://digital.library.unt.edu/ark:/67531/metadc68040/.
Full textAbstract:
Through the partnership of standpoint theory and photovoice method, the present study looked at how teenagers, attending a multicultural education camp, define diversity, as well as what the participants considered to be the benefits and limitations of diversity. Standpoint theory gives the theoretical perspective to understand the marginalized voice of teenagers, while photovoice provides the tools to better capture and understand their marginalized voice.
This study was situated in a professionally-developed camp, Camp CommUNITY, that emphasizes multicultural awareness amongst teens. Nine participants and 46 pictures were analyzed. Resulting from open coding, 11 categories and 6 themes were identified. Each theme and definitions of diversity are approached with a dialectical perspective, yielding to the model of dialectical dimensions of diversity. To answer Research Question 2, participants identified both benefits and limitations for photovoice method. Additional theoretical, practical, and methodological implications, limitations, and directions for future research are addressed.
43
Chen, Shuxian. "Ultra wideband gigabit powerline communication." Thesis, Queen Mary, University of London, 2009. http://qmro.qmul.ac.uk/xmlui/handle/123456789/442.
Full textAbstract:
Powerline Communication (PLC) has long been established for low data rate applications by the electric supply companies. Since 1991, the European CENELEC standard EN 50065 has ruled the use of 3 - 148.5KHz frequency range for narrow band PLC applications. Sim- ilar standard has been established by the IEEE in the US, where a frequency range of 50 - 450KHz is available. The fast growth of Internet since the 1990s accelerated the demands for digital communication services. Furthermore, with the develop- ment of in-home networking, there is a need to establish high speed data links between multiple household devices. This makes PLC sys- tems march rapidly into the high frequency range above 1MHz. Exist- ing broadband PLC system in the 1.6 - 30MHz frequency range only provides data rates smaller than 200Mbps. With the growing demand of multimedia services such as High De nition (HD) video streaming, much faster transmission speed up to Gigabits per second is required and this can be achieved by increasing the operating frequencies. Ultra Wideband (UWB) transmission in free space provides extremely broad bandwidth for short-range, high data rate applications. If UWB signals could be transmitted over the powerline channels in the high frequency range above 30MHz, data rates up to gigabits per second could be achieved. In this thesis, the possibility of implementing ultra wideband trans- mission over the low voltage indoor powerline is investigated. The starting point is to understand the signal propagation characteristics over powerline cables, in the UWB frequency range. Experimental re- sults indicate that the signal degrades at an acceptable rate over the mains cable in a scaled down UWB frequency band (50MHz - 1GHz), which provides a potential operation band for UWB over PLC ap- plications. Key component for the PLC system, a broadband Radio Frequency (RF) coupler is designed and developed, to introduce UWB signals to the transmission channel. With the channel properties and coupling unit, extensive experimental investigations are carried out to analyse the powerline network environment, including channel loss, noise and radiated emission. Furthermore, theoretical channel capac- ity and link budget are derived from measured parameters. It is shown that the indoor powerline is a suitable media for data transmission in the high frequency range from 50 to 550MHz in the home environment. Finally, system level performance is analysed by modelling the Phys- ical Layer (PHY) data transmission. The Multiband-OFDM UWB proposal for IEEE 802.15.3a standard is used to predict the transmis- sion performance under di erent propagation paths and data rates. The research work conducted in this project has proven that UWB over PLC is highly feasible for future in-home applications. With the global promotion of smart grid applications, UWB over PLC will play an important role in providing high speed data transmission over the power networks.
44
Ali, Ahmed H. "Advanced handover procedure for cellular communication systems." Thesis, Aston University, 1998. http://publications.aston.ac.uk/7974/.
Full textAbstract:
Third Generation cellular communication systems are expected to support mixed cell architecture in which picocells, microcells and macrocells are used to achieve full coverage and increase the spectral capacity. Supporting higher numbers of mobile terminals and the use of smaller cells will result in an increase in the number of handovers, and consequently an increase in the time delays required to perform these handovers. Higher time delays will generate call interruptions and forced terminations, particularly for time sensitive applications like real-time multimedia and data services. Currently in the Global System for Mobile communications (GSM), the handover procedure is initiated and performed by the fixed part of the Public Land Mobile Network (PLMN). The mobile terminal is only capable of detecting candidate base stations suitable for the handover; it is the role of the network to interrogate a candidate base station for a free channel. Handover signalling is exchanged via the fixed network and the time delay required to perform the handover is greatly affected by the levels of teletraffic handled by the network. In this thesis, a new handover strategy is developed to reduce the total time delay for handovers in a microcellular system. The handover signalling is diverted from the fixed network to the air interface to prevent extra delays due to teletraffic congestion, and to allow the mobile terminal to exchange signalling directly with the candidate base station. The new strategy utilises Packet Reservation Multiple Access (PRMA) technique as a mechanism to transfer the control of the handover procedure from the fixed network to the mobile terminal. Simulation results are presented to show a dramatic reduction in the handover delay as compared to those obtained using fixed channel allocation and dynamic channel allocation schemes.
45
Bartell, Nicole E. "But what do they think it means? : the text/image relationship in informational communication /." Online version of thesis, 2004. http://hdl.handle.net/1850/11799.
Full text
46
Gaudet, Cynthia. "Electronic Bedside Documentation and Nurse-Patient Communication: A Dissertation." eScholarship@UMMS, 2014. https://escholarship.umassmed.edu/gsn_diss/32.
Full textAbstract:
Nurses are often the first members of the health care team with whom patients interact. The initial impression of the nurses’ receptiveness to the patients’ needs influences the patients’ views of their overall care. Researchers have suggested that understanding communication between individuals can provide the human link, or social element, to the successful implementation and use of electronic health records, including documentation (Lanham, Leykum, & McDaniel, 2012). Zadvinskis, Chipps, and Yen (2014) identified that the helpful features of bedside documentation systems were offset by the mismatch between the system and nurse’s workflow. The purpose of this micro-ethnography study was to explore the culture of nurse-patient interaction associated with electronic documentation at the bedside. Data were collected through passive participant observation, audio-taping of the nurse-patient interactions, and informal and semi-structured interviews with the nurses. A total of twenty-six observations were conducted on three nursing units at an urban healthcare facility in New England. These three units were occupied by similar patient populations and all patients required cardiac monitoring. Three themes consistently emerged from qualitative data analysis: the nurses paused during verbal communication, the nurses played a game of tag between the patient and the computer, and the nurses performed automatic or machine-like actions. The participants described these themes in the informal and semi-structured interviews. The nurses’ actions were observed during passive participant observation, and the audio-taped interactions supported these themes. Understanding the adaptation of caregiving necessitated by bedside electronic documentation will have a positive impact on developing systems that interface seamlessly with the nurses’ workflow and encourage patients’ active participation in their care.
47
Sokolova, Marina. "Learning from communication data: Language in electronic business negotiations." Thesis, University of Ottawa (Canada), 2006. http://hdl.handle.net/10393/29317.
Full textAbstract:
When people communicate, language is one of the means of reaching the goal of communication. Negotiations by electronic means is an example of communication where language is the principal deal-making tool. Negotiators use language to persuade, threaten and query, aiming to get the largest piece of the pie, to reach a compromise or to find prospective partners. Here is a sample from electronic negotiations, with the original spelling, punctuation and capitalization:
Seller. Dear BuTTerFLy Thanks for your offer. I see there are still some things that have to be thought about. We both come along with payment upon delivery. I could imagine a price of $3.98 and delivery 45 days, but unfortunately with the returns i cant make you any other offers. I hope you quite like this offer. Im sure an agreement will be found. Im looking forward to your respond, daisy.
Buyer. To my dearest friend daisy... Thank you for your quick respond, I quite like your second offer. However I'll be more than happy if the price goes down to 3.71$ and the delivery would be within 30 days (about the payment and the return I don't have any problems with them). I'll really appreciate it if you accept the offer I just made, but if you don't, I'm sure somehow we'll come up with an agreement. yours faithfully BuTTerFLy!!!!!
We apply statistical modelling and build a semantic lexicon to find the characteristics of e-negotiation data which make it unique. We find language patterns that signal of negotiator roles and success or failure of negotiations.
Research in human communication shows that it is very difficult to find the characteristics of unsuccessful activities and communication corresponding to them. The interesting and promising result of this dissertation comes in the form of identifying two sets of features that characterize successful and unsuccessful communication respectively. We use these sets to represent negotiations and then classify the negotiation outcomes. The results show the advantage of the proposed feature selection approach compared with the popular statistical selection.
We apply our research to the largest available collection of electronic negotiations and, when appropriate, to data of face-to-face negotiations. In the dissertation we employ methods developed for Corpus Linguistics, Natural Language Processing and Machine Learning. We investigate the ability of the methods to model and classify the data. Throughout the dissertation we examine hypotheses on language, learning and the process of electronic negotiations.
48
Rugbeer, Hemduth. "Communicating by ordering electrons : the development of electronic communication as part of a secondary school Communication Science curriculum in the Language, Literacy and Communication learning area." Thesis, University of Zululand, 2001. http://hdl.handle.net/10530/314.
Full textAbstract:
A thesis submitted in fulfilment of the requirements for the Degree of MA in Communication Science, University of Zululand, 2001.In this thesis I focus on the introduction of Electronic Cornmunication as part of an envisaged Communication Science curriculum in the Language, Literacy and Communication Learning area of the Further Education and Training band. In the course of my thesis I will show that the requisite elements of verbal and written cornmunication are dispersed throughout the Language, Literacy and Communication learning area in the General Education and Training band, and that they can be utilised as basis for formally introducing Communication Science, as a subject in the Language, literacy and Communication learning area in the Further Education and Train¬ing band. I also show that electronic communication will form a crucial area of study in such a Communication Science curriculum. I argue that due to the diversity of cultures in South Africa, cross-cultural cornmunication is required in such a curriculum. I also argue that by the very na¬ture of Outcomes-Based Education it is necessary to have a subject into our school curriculum that will form an interface with conceptual learning and experiential learning, that will contextu-alise language study within the more comprehensive scope of forms of human communication, and that will form an interface between the humanities and science to prevent the humanities from becoming soft options in Further Education and Training band learning programmes. To this effect I focus on the crucial role of Constructivism as integrating theory to account for vari¬ous approaches to motivational learning, the primary form of learning required in Outcomes-Based Education. I examine the principles of curriculum construction in OBE and its associated culture of learn¬ing against the backdrop of the theory of Situated Cognition. This presents a platform to argue the case for Electronic Communication as part of Communication Science in the Further Edu¬cation and Training band curricula in South African schools.
National Research Foundation
49
Rosu, Marcel-Catalin. "Communication support for cluster computing." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/8256.
Full text
50
Rohde, Hermann S. T. "God's people and the bread of life prophetic confrontation as a means of soteriological polarization in the Fourth Gospel /." Theological Research Exchange Network (TREN), 1995. http://www.tren.com.
Full text