| 1. |
- Bosch-Sijtsema, Petra, 1971, et al.
(author)
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Professional Virtual Worlds Supporting Computer-Mediated Communication, Collaboration, and Learning in Geographically Distributed Contexts
- 2013
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In: IEEE Transactions on Professional Communication. - 0361-1434 .- 1558-1500. ; 56:2, s. 160-175
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Journal article (peer-reviewed)abstract
- Research problem: Although much research exists on virtual worlds, very few studies focus on professional virtual worlds used for working in a global setting. Research questions: (1) How do global managers currently use and experience professional virtual worlds (Virtual Worlds) as a communication media for global work? and (2) How do these Virtual Worlds support global and professional communication in a geographically distributed context? Literature review: We reviewed Virtual World literature in the area of social sciences, education, and games. Little research has been conducted on Virtual Worlds for workgroups. But those studies support the assumption that Virtual Worlds are suitable for global distributed work as a collaboration and communication medium. Methodology: With an explorative and qualitative interview research approach, we conducted 47 semi-structured interviews with virtual world vendors, researchers, and managers using virtual worlds in their work. Data were analyzed based on Grounded Theory Analysis methods. Results and conclusions: The results show four different use cases applied for professional Virtual Worlds: small team meetings, trainings, community building, and conferences. Furthermore, our findings confirm Virtual World literature that states that the professional Virtual World as a communication and collaboration tool supports geographically distributed work as well as visualization and learning in a global context.
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| 2. |
- Johansson, Conny, et al.
(author)
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Software Engineering Across Boundaries : Student Project in Distributed Collaboration
- 1999
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In: IEEE Transactions on Professional Communication. - : IEEE. - 0361-1434 .- 1558-1500. ; 42:4, s. 286-296
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Journal article (peer-reviewed)abstract
- Geographically distributed software development projects have been made possible by rapid developments primarily within the data communication area. A number of companies recognize that distributed sollaboration has great potential for the near future. This report describes the empirical study of a cooperative student project located at two different geographical sites. The project was carried out at two universities, one in Sweden and one in finland. The initial goals were to give the students the opportunity to learn about the practical aspects of cooperation between two geographically seperate institutions and to study specific problems anticipated by the teachers with regard to communication, coordination, language, culture, requirements' handling, testing, and bug fixing. This report focuses on communication and coordination within the cooperative project as these were identified as the most significant problem areas. We also thought that these areas were the most interesting and the ones most likely to lead to improvements. This report not only describes our findings but also gives hints about what to think about when running similar projects both with respect to project related issues and teaching issues.
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| 3. |
- Lundin, Jonatan, et al.
(author)
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An Investigation of Maintenance Technicians' Information-Seeking Behavior in a Repair Center
- 2018
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In: IEEE Transactions on Professional Communication. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 0361-1434 .- 1558-1500. ; 61:3, s. 257-274
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Journal article (peer-reviewed)abstract
- Research problem: When it comes to understanding certain aspects of a maintenance technician's information-seeking behavior, knowledge is lacking. For instance, little is known about what kinds of information needs that maintenance technicians exhibit while performing work tasks and what types of sources they employ to satisfy those needs. Understanding such information-seeking behavior is especially essential for technical communicators who endeavor to design useful and relevant technical information. Research questions: 1. What information needs do maintenance technicians show evidence of while performing maintenance work tasks? 2. Where do they go to satisfy these information needs? Literature review: Current knowledge on maintenance technicians' information-seeking behavior is very limited. The literature reviewed for this study covers the task-based information-seeking behavior of different types of engineers and is mainly found within the field of library and information science research. This literature was selected because maintenance technicians and engineers share many characteristics. One information-seeking characteristic exhibited by engineers is the tendency to rely on internal company information, such as colleagues and self-created sources, before external information sources are consulted. Methodology: This study utilized an ethnographic research approach where empirical data were collected, analyzed, and interpreted from a theoretical viewpoint-a synthesis of Bystrom and Hansen's conceptual framework and the Systemic-Structural Theory of Activity. Seven in-house aftermarket maintenance technicians were observed via participant observation at a repair center in Sweden while they performed maintenance tasks on machines that had been taken out of service. Results and conclusions: The results-based on empirical data collected over the course of 12 days, spread over 12 weeks in the autumn of 2012-reveal that the observed maintenance technicians exhibited 50 different types of information needs. They seldom sought instructions covering an entire work task. Instead, to satisfy their information needs, the maintenance technicians consulted four types of sources that, in the present study, have been designated as information source hosts.
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| 4. |
- Paretti, Marie C., et al.
(author)
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Faculty and Student Perceptions of the Impacts of Communication in the Disciplines (CID) on Students’ Development as Engineers
- 2019
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In: IEEE Transactions on Professional Communication. - 0361-1434 .- 1558-1500. ; 62:1, s. 27-42
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Journal article (peer-reviewed)abstract
- Background :Research suggests that communication instruction is particularly effective when situated indisciplinary courses. While studies show that this approach improves communication skills, less is known about how itenhances engineering learning. Literature review :Prior work includes approaches to integrating communication intoengineering, studies of writing to learn, and explorations of the role of communication in identity development. Research question :How might the integration of communication instruction and practice into undergraduateengineering courses support engineering learning? Methodology :Because little is known about how communicationinstruction enhances engineering learning, we conducted an exploratory case study of an established integratedprogram in one European university. Participants included six engineering instructors, five engineering program heads,and six engineering students. Using interviews and focus groups, we explored the engineering-specific gains thatfaculty and students perceived from integrating communication assignments into engineering courses. Results :Ouranalysis yielded three salient areas of learning: 1. understanding disciplinary content, 2. selecting importantinformation, and 3. justifying choices. While the first aligns tightly with writing-to-learn research, all three themes, infact, bridge content learning and disciplinary literacy to enhance students’ development as engineering professionals. Conclusions :Communication instruction can potentially support engineering learning through assignments that promptstudents to select information in ways that are consistent with both disciplinary values and the needs of stakeholders,and make and justify decisions about approaches and solutions in ways that demonstrate sound engineering judgment.
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| 5. |
- Pitt, Leyland, et al.
(author)
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The social media release as a corporate communications tool for bloggers
- 2011
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In: IEEE Transactions on Professional Communication. - 0361-1434 .- 1558-1500. ; 54:2, s. 122-132
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Journal article (peer-reviewed)abstract
- This study examines the impact of a new communications tool, the Social Media Release (SMR), on bloggers. Specifically we seek to determine what factors will influence bloggers' intents to use SMRs or their components. Our global survey of 332 bloggers finds that bloggers' perceptions of the effectiveness of the SMR, and the use of SMRs by companies positively affect their decisions to use SMRs now and in the future. We also find that bloggers' current use of SMRs influences their decisions to continue using SMRs. Implications on the use of SMRs as corporate communications tools are drawn.
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| 6. |
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| 7. |
- Johansson, Fredrik, et al.
(author)
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The influence of porous silicon on axonal outgrowth in vitro.
- 2008
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In: IEEE Transactions on Biomedical Engineering. - 1558-2531. ; 55:4, s. 1447-1449
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Journal article (peer-reviewed)abstract
- Axonal outgrowth on smooth and porous silicon surfaces was studied in organ culture. The pore size of the silicon substrata varied between 100 and 1500 nm. We found that axons preferred to grow and elongate on porous silicon surfaces only when pores of (150-500 nm) are available.
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| 8. |
- Wosinska, Lena, et al.
(author)
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Reliability performances of optical ATM switches based on different routing and buffering schemes
- 1999
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In: IEEE Transactions on Communications. - : Institute of Electrical and Electronics Engineers (IEEE). - 0090-6778 .- 1558-0857. ; 47, s. 472-475
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Journal article (peer-reviewed)abstract
- Reliability performances of seven equal-capacity optical asynchronous transfer mode switches based on different routing and buffering schemes are compared. Calculations are based on available reliability data for commercial components as well as expected life lengths for new components and systems. In general, for switching systems, the average downtime is required to be held below 3 min/year. However, our results indicate that the average downtime for the proposed configurations is much longer than requested, over ten times longer for the best case and over 1500 times longer for the worst case. Therefore, the multiplane structures (i.e., multiplying of the entire systems) have to be provided for the switching systems investigated here in order to satisfy reliability requirements
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| 9. |
- Svechnikov, S., et al.
(author)
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Spiral antenna nbn hot-electron bolometer mixer at submm requencies
- 1997
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In: IEEE Transactions on Applied Superconductivity. - : Institute of Electrical and Electronics Engineers (IEEE). - 1558-2515 .- 1051-8223. ; 7:2, s. 3395-3398
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Journal article (peer-reviewed)abstract
- We have studied the phonon-cooled hot-electron bolometer (HEB) as a quasioptical mixer based on a spiral antenna designed for the 0.3-1 THz frequency band and fabricated on sapphire and high resistivity silicon substrates. HEB devices were produced from superconducting 3.5-5 nm thick NbN films with a critical temperature 10-12 K and a critical current density of approximately 10/sup 7/ A/cm/sup 2/ at 4.2 K. For these devices we reached a DSB receiver noise temperature below 1500 K, a total conversion loss of L/sub t/=16 dB in the 500-700 GHz frequency range, an IF bandwidth of 3-4 GHz and an optimal LO absorbed power of /spl sime/4 /spl mu/W. We experimentally analyzed various contributions to the conversion loss and obtained an RF coupling factor of about 5 dB, internal mixer loss of 10 dB and IF mismatch of 1 dB.
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| 10. |
- Mao, Jia, et al.
(author)
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A UWB-Based Sensor-to-Time Transmitter for RF-Powered Sensing Applications
- 2016
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In: IEEE Transactions on Circuits and Systems - II - Express Briefs. - : IEEE Press. - 1549-7747 .- 1558-3791. ; 63:5
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Journal article (peer-reviewed)abstract
- An ultrawideband (UWB)-based sensor-to-time transmitter consisting of a remote control (RC) time-constant interface and an ultralow-power pulse generator is presented. The sensing information is directly extracted and transmitted in the time domain, exploiting UWB pulses with a high time-domain resolution. This approach eliminates the need for an analog-to-digital converter and baseband blocks of sensor tags; meanwhile, it reduces the number of bits to be transmitted for energy saving. The sensor interface measures the discharging time of the RC time constant proportional to the sensor variation. The UWB pulses are triggered with intervals of the RC discharging time, without any digitizing or modulations. The circuit prototype is implemented in the standard 0.18-mu m CMOS process. Resistance measurement results show that the proposed system exhibits an effective number of resolution bits (ENOB) of 7.7 bits with an average relative error of 0.42% in the range of 200-1500 Omega. The overall energy consumption of conversion and transmission per sample is measured to be 0.58 nJ with a 1.27-Vp-p pulse amplitude, which is favorable to radio-frequency-powered wireless sensing applications.
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