The routine top-up operation of Taiwan Light Source (TLS) began in October 2005. The beam stability and integrated flux were drastically improved. Various diagnostics are needed to support the top-up operation. These tools include diagnostics for measuring beam charge and current and injection efficiency, as well as a filling pattern monitor, a tune monitor, and an instability and loss pattern ...

Previous studies have provided evidence of multi-level mental representations of language-conveyed spatial (scenic) information. However, the available evidence is largely inconclusive with regard to the structure of these mental representations. A laboratory experiment assesses computer-assisted problem-solving performance abilities when language-conveyed representations of spatial information...

The search for faster ways to get fractal pictures onto the computer screen leads to new problems on Latin squares.

Purpose of the study is to investigate how adults solve tangram based geometry problems on computer screen. Two problems with different difficulty levels were presented to 20 participants. The participants tried to solve problems by placing seven geometric objects into correct locations. In order to analyze the process, the participants and their eye movements were recorded by an Tobii Eye Trac...

People fixate on blank locations if relevant visual stimuli previously occupied that location; the so-called ‘looking-atnothing’ effect. While several theories have been proposed to explain potential reasons for the phenomenon, no theory has attempted to predict the stability of this effect with practice. We conducted an experiment in which participants listened to four different sentences. Eac...

A virtual orchestra was implemented to augment a human jazz big band with the addition of violins, violas, and cellos. In an effort to maximize musical quality, the orchestra uses a high-quality studio recording of each individual part, yet adapts to the tempo of the band in real time using a custom multi-channel PSOLA algorithm. The tempo is tracked through a foot-tapping interface, with addit...

This paper presents the main approaches used to synthesize talking faces, and provides greater detail on a handful of these approaches. No system is described exhaustively, however, and, for purposes of conciseness, not all existing systems are reviewed. An attempt is made to distinguish between facial synthesis itself (i.e the manner in which facial movements are rendered on a computer screen)...

People often tacitly assume an egocentric perspective when describing spatial scenes, and then use ambiguous descriptions (e.g., “The bottle is on the left.”). However, they can also take an alternative perspective, for instance referencing an agent that is present in the scene to reduce ambiguity (e.g., “The bottle is on your right.”). In this experiment, participants viewed a computer screen ...

We report the effects on accuracy and reaction time at a mental rotation task for four year old subjects who were either given practice rotating objects on a computer screen by turning a joystick or gesturing about rotating objects on a computer screen. We found that training children to gesture about rotation improves performance on MR. Children who were given practice rotating objects with a ...

The Hayward Tuning Vine is a software interface for exploring the system of microtonal tuning known as Just Intonation. Based ultimately on prime number relationships, harmonic space in Just Intonation is inherently multidimensional, with each prime number tracing a unique path in space. Taking this multidimensionality as its point of departure, the Tuning Vine interface assigns a unique angle ...