High-temperature tensile tester for ceramics

Apparatus measures tensile strength of rigid, low-density ceramic materials at temperatures up to 1375 K. Tensile grips mate with tensile specimen and form top and bottom of lightweight furnace. Apparatus can only be used with rigid materials and grips must be stronger than material under test

Voldemort Tyrannos: Plato’s Tyrant in the Republic and the Wizarding World

In the Harry Potter novel series, by J. K. Rowling, the character of Lord Voldemort is the dictatorial ruler of the Death Eaters and aspiring despot of the entire wizarding community. As such, he serves as an apt subject for the application of Plato’s portrait of the tyrant in Republic IX. The process of applying Plato to Voldemort, however, leads to an apparent anomaly, the resolution of which requires that we move beyond the Republic to the account of beauty presented by Plato in the Symposium. In doing so, we shall find that while Plato can help us to understand Voldemort, Voldemort can also help us to attain a deeper understanding of Plato

Pragmatism and Meaning: Assessing the Message of Star Trek: The Original Series

The original Star Trek television series purported to depict a future in which such evils as sexism and racism do not exist, and intelligent beings from numerous planets live in a condition of peace and mutual benefit. As many scholars have observed, from a standpoint of contemporary theoretical analysis, Star Trek: The Original Series contains many elements that are inimical to the utopia it claims to depict and thus undermine its supposed message. A different perspective may be gained by drawing on the American pragmatist movement, in which the value of an idea is judged by its effectiveness, how it ‘cashes out’ in terms of its impact in real life. Thus, the meaning and value of Star Trek: TOS can be assessed by observing its effects on its audience. This perspective coordinates well with Taylor’s discussion of the necessary conditions for the realization of a protreptic moral order in the social imaginary, as well as a pragmatist understanding of audience engagement and education

A novel word-independent gesture-typing continuous authentication scheme for mobile devices

In this study, we produce a new continuous authentication scheme for gesture-typing on mobile devices. Our scheme is the first scheme that authenticates gesture-typing interactions in a word-independent format. The scheme relies on groupings of features extracted from the word gesture after it has been reduced to parts common to all gestures. We show that movement sensors are also important in differentiating between users. We describe the feature extraction processes and analyse our proposed feature set. The unique process of our authentication scheme is presented and described. We collect our own gesture typing dataset including data collected during sitting, standing and walking activities for realism. We test our features against state-of-the-art touch-screen interaction features and compare feature extraction times on real mobile devices. Our scheme authenticates users with an equal error rate of 3.58% for a single word-gesture. The equal error rate is reduced to 0.81% when 3 word-gestures are used to authenticate