Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 107 for “"Personal communication"”.
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Cryptographic techniques for personal communication systems security
The advent of personal communication systems within the last decade has depended upon the utilization of advanced digital schemes for source and channel coding and for modulation. The inherent digital nature of the communications processing has allowed the convenient incorporation of cryptographic …
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Wideband propagation measurements for personal communication systems
… is a vital but invisible part of any wireless communications system. As wavelengths get shorter, multipath effects become more pronounced, causing small scale fading in narrowband channels, and inter-symbol interference in wideband systems because of delay spread in the channel impulse …
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Adaptive Antenna Arrays for Satellite Personal Communication Systems
… decade, several proposals have come forth for personal communication services implemented by means of multiple satellite systems. These satellite systems are similar to current terrestrial cellular technologies, which are still relatively new and have numerous technical problems associated with …
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Site-specific propagation prediction for wireless in-building personal communication system design
… model to predict propagation in buildings for personal communication system (PCS) design. Background on the growth of wireless communications is given, and the importance of accurate propagation models is discussed. The peculiarities of propagation in mobile and portable radio environments, …
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Design and Implementation of a Pilot Signal Scanning Receiver for CDMA Personal Communication Services Systems
In cellular and personal communications services (PCS) systems based on code division multiple access (CDMA), a pilot signal is used on the forward link for synchronization, coherent detection, soft handoff, maintaining orthogonality between base stations, and, in the future, position location. It …
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Antenna effects on indoor wireless channels and a deterministic wide-band propagation model for in-building personal communication systems
… of antenna diversity in a narrow band communication system is well understood, little research has been done on antenna effects in wide-band channels. Research has shown that circular polarization (CP) is more robust in combating multipath than linear polarization in line-of-sight …
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Twitter: An opportunity or a curse for South African female journalists?
… working at Daily Maverick, who through personal accounts and specific experiences describe why they use Twitter, even though they are or might be subject to online violence (Anonymous, personal communication, August 2021.) They understand the dilemma many journalists face in today's …
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Millimeter-wave circuit design of coplanar integrated circuits and superconducting passive components
Wireless communication is revolutionizing global business. As the interactive personal communication service market grows, the need for high-frequency transmitters and receivers will increase. The wide bandwidth requirements of multimedia technology restrict the use of conventional radio and …
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Cortical Dynamics of Language
… for fluent speech profoundly directs inter-personal communication and, by extension, self-expression. Language is lost in millions of people each year due to trauma, stroke, neurodegeneration, and neoplasms with devastating impact to social interaction and quality of life. The following …
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Digital + Physical: Rethinking the Playground
… aspects of traditional play while utilizing the personal, communication, social, competitive, and graphical informational properties of wireless handheld devices. This thesis documents the research, conceptualization and final development of the Funky Bars and Whirly Bird playground pieces.
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Simulation of VSELP speech encoder for mobile channels
… Recently there has been an incredible demand for personal communication services. To meet this demand various technologies have been developed. The U. S. digital cellular standard uses the 8 kbps VSELP speech coder to accommodate more users in the same bandwidth. This standard is currently being …
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Call control signalling for personal communications over interconnected metropolitan area networks
Personal communication services (PCS) are currently being developed to enable people to call other people regardless of their locations and movements. A distributed personal communication network (PCN) based on the IEEE 802.6 metropolitan area networks (MANs) has been recently proposed as a means …
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The Importance of Leadership Motivational Activities In Encouraging International Students To Return To Their Tier 1 Universities
… United States.</p> <p>Major findings were that Personal Communication with Leader, Cost, and Seminars on Various Topics motivated international students to return to their Tier-I research university. Additionally, Job Opportunities and Social Clubs/Organizations were also motivating factors in …
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Opportunities for coordinated road management on public lands for purposes of ecosystem management: the case of the greater Yellowstone ecosystem
… plans and engineering policies, and through personal communication with forest highway engineers and transportation planners. Recommendations for improving coordination of forest road management follow the critique.
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Effects of Feedback Video in Mediated Communication
… has become a widely-used form of mediated personal communication. While other form of real-time communication such as face-to-face conversations or telephonic conversation, do not afford any form of feedback about self-presentation to individuals; video conferencing has the ability to …
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The design and use of dental articulators in the United States from 1840 to 1970
… States Patent records, dental literature and personal communication are many bits of information concerning dental articulator use and design which have been put into this single source. It developes a new classification of dental articulators into eighteen types. This classification is based …
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Cultural Policy in the Westfjords, Iceland.
… Employing secondary research, interviews, and personal communication, the scope of the study was of cultural policy as it exists both formally and informally to answer the question: “What is the cultural policy of the Westfjords?” The research findings are illuminating and give an overview of …
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Influential Factors In International Students' College Choice Of A Rural, Regional University
… Ease and efficiency of the admission process and personal communication with university personnel are among the marketing and recruitment characteristic variables that have the most impact on students' college choice in this category. The influence of significant others was found to have the least …
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The Parasitic Fauna of the House Mouse, Mus Musculus, From the Henry Doorly Zoo
… These case histories were obtained from personal communication with Dr. R. McCoy, a zoo veterinarian.
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An Identity and Certificate Manager
… bindings. ICM can be used in a variety of personal communication applications, such as chat, email, VoIP telephony, and web browsing. As part of ICM, we designed and implemented a communication-efficient protocol, called Identity and Certificate Exchange (ICE), for exchanging certificates, …
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