In-process laser heating technique delivers a cost-efficient way to improve mechanical and geometrical properties to nearly isotropic and extremely smooth, respectively. The technique involves the incorperation of a solid-state laser into a commercial off-the-shelf 3D printer, mechanical system to allow controllable laser allumination on desired surfaces, and a gcode postprocesser to proper control of the mechanical system. This process uses laser for local heating, to enhance mass transfer between boundaries or to enhance surface reflow to smooth surface irregularity, to improve mechanical and geometrical properties. Only less than 3 W of laser power (CO2 laser) was used for high temperature material like PEEK and Ultem; less than 1 W (808nm laser) was found to be sufficient for achieving optimal properties for PLA. This technique has the potential for after-market integration into most commercial FFF 3D printers to achieved nearly isotropic and smooth 3D printed objects with various thermoplastic polymers.

Purpose: In spring of 2007, Arizona State University Libraries held a focus group of selected faculty to discover their perceptions and use of electronic books (e-books) in their research and teaching.

Methodology/approach: We employed the services of the Institute of Social Sciences Research to recruit and moderate the focus group. The following major themes were explored:
       1) Use of e-books as textbooks.
       2) Use of e-books for personal research.
       3) Comparison between e-books and print.
       4) Disciplinary differences in perceptions of e-books.
       5) Motivators for future use

Findings: Overall, the focus group revealed that faculty had generally unsatisfactory experiences in using e-books in their research and teaching due to the unreliability of access, lack of manipulability, and the steep learning curve of the various interfaces. However, most faculty agreed that e-books would be a very viable and useful alternative if these issues were resolved.

Research limitations/implications: The focus group consisted of only six faculty members and hence is not representative of faculty as a whole. A larger survey of a more diverse faculty population would greatly serve to clarify and expand upon our findings.

Practical implications: The implications for academic libraries include providing better outreach and training to faculty about the e-book platforms offered, provide better course support, and advocate to e-book vendors to consider faculty's teaching and research needs in their product development.

Originality/value of paper: To the best knowledge of the authors, this is the first published study of faculty opinions and use of e-books utilizing focus group methodology and offers detailed information that would be useful for academic libraries and e-book vendors for evidence-based decisions.