Comparing two haptic interfaces for multimodal graph rendering

This paper describes the evaluation of two multimodal interfaces designed to provide visually impaired people with access to various types of graphs. The interfaces consist of audio and haptics which is rendered on commercially available force feedback devices. This study compares the usability of two force feedback devices: the SensAble PHANToM and the Logitech WingMan force feedback mouse in representing graphical data. The type of graph used in the experiment is the bar chart under two experimental conditions: single mode and multimodal. The results show that PHANToM provides better performance in the haptic only condition. However, no significant difference has been found between the two devices in the multimodal condition. This has confirmed the advantages of using multimodal approach in our research and that low-cost haptic devices can be successful. This paper introduces our evaluation approach and discusses the findings of the experiment

Multimodal virtual reality versus printed medium in visualization for blind people

In this paper, we describe a study comparing the strengths of a multimodal Virtual Reality (VR) interface against traditional tactile diagrams in conveying information to visually impaired and blind people. The multimodal VR interface consists of a force feedback device (SensAble PHANTOM), synthesized speech and non-speech audio. Potential advantages of the VR technology are well known however its real usability in comparison with the conventional paper-based medium is seldom investigated. We have addressed this issue in our evaluation. The experimental results show benefits from using the multimodal approach in terms of more accurate information about the graphs obtained by users

Sonically-enhanced widgets: comments on Brewster and Clarke, ICAD 1997

This paper presents a review of the research surrounding the paper “The Design and Evaluation of a Sonically Enhanced Tool Palette” by Brewster and Clarke from ICAD 1997. A historical perspective is given followed by a discussion of how this work has fed into current developments in the area

Exploring computer-generated line graphs through virtual touch

This paper describes the development and evaluation of a haptic interface designed to provide access to line graphs for blind or visually impaired people. Computer-generated line graphs can be felt by users through the sense of touch produced by a PHANToM force feedback device. Experiments have been conducted to test the effectiveness of this interface with both sighted and blind people. The results show that sighted and blind people have achieved about 89.95% and 86.83% correct answers respectively in the experiment

Radiation Effects on Flow Characteristics in Combustion Chambers

A JANNAF sponsored workshop was held to discuss the importance and role of radiative heat transfer in rocket combustion chambers. The potential impact of radiative transfer on hardware design, reliability, and performance was discussed. The current state of radiative transfer prediction capability in CFD modeling was reviewed and concluded to be substantially lacking in both the physical models used and the radiative property data available. There is a clear need to begin to establish a data base for making radiation calculations in rocket combustion chambers. A natural starting point for this effort would be the NASA thermochemical equilibrium code (CEC)

Interview with Seth Brewster by Mike Hastings

Biographical NoteSeth Brewster was born on January 8, 1960, in Worcester, Massachusetts, and grew up in Manchester, Maine, where his father worked for Central Maine Power. He attended local public school until his junior year of high school, when he transferred to Deerfield Academy. He was graduated from Dartmouth College in 1982 with a double major in engineering sciences and economics. After college he worked for Arthur Andersen Consulting, based in New York City. He attended law school in Boston and took the bar exam in Massachusetts and Maine. In 1991, he pursued an opportunity to work for Senator Mitchell in Washington, D.C. as a trade legislative aide. He remained in that position until Mitchell decided not to seek reelection in 1994. In early 1995, he joined Verrill Dana, a law firm in Portland, Maine, where he remained at the time of this interview. SummaryInterview includes discussions of: Kent’s Hill School; Deerfield Academy; Dartmouth College and Dartmouth culture; the modern pentathlon; Arthur Andersen Consulting; clerkship for Judge William G. Young; the Levasseur case; the North American Free Trade Agreement (NAFTA) and the Uruguay round of the General Agreement on Tariffs and Trade; Senator Mitchell’s role in passing the NAFTA as majority leader; the responsibilities of a trade legislative aide; Mitchell’s decision to resign from the Senate; commercial and anti-trust litigation in Maine and how that ties in with Brewster’s work on the Hill; and an anecdote about being introduced to President Clinton by Senator Mitchell

Historical Souvenir of The Isles of Shoals

A booklet on the history of the Isles of Shoals prepared for the N. H. Weekly Publishers Association on the occasion of their visit to Star Island in 1905. Includes several illustrations

Stereotypical perceptions of the communication behaviors of gay males

This study examined the stereotypical communication behaviors of gay males. The study examined the associations of assertiveness, responsiveness, homonegativity and biological sex. Participants were 359 (195 men, 164 women) students. Participants provided responses to questions about verbal and nonverbal behaviors for known gay individuals and individuals perceived to be gay. The participants then completed the Assertiveness-Responsiveness Measure (Richmond & McCroskey, 1990) in a self-report and observer-report, and the Modern Homonegativity Scale (Morrison & Morrison, 2002). Results indicated some of the more predominant responses to verbal and nonverbal behaviors are inconsistent with the prevalent societal perceptions of homosexuality. Significant associations between biological sex, assertiveness and responsiveness were discovered. The results show that perceived responsiveness and homonegativity were associated. Self-reported assertiveness and self-reported responsiveness were consistent with perceptions of other\u27s assertiveness and responsiveness. There were significant differences based on biological sex, assertiveness and responsiveness. Future research would resolve some of the questions that this research raised, in particular, why are men consistently more likely to illustrate higher levels of homonegativity. Future research should examine other communication constructs that could further resolve many of the questions that plague gay males