We present SpeedSeg, a technique for segmenting pen strokes into lines and arcs. The technique uses pen speed information to help infer the segmentation intended by the drawer. To begin, an initial set of candidate segment points is identified. This set includes speed minima below a threshold, and curvature maxima at which the pen speed is also below a threshold. The ink between each pair of co...

Recently there has been an increasing incidence of occupational cervicobrachial disorders (OCD) and writer's cramp in office workers using ballpoint pens in writing operations. For the sake of workers who use ballpoint pens, it is essential to prevent such health hazards. It has been observed that a strong gripping pressure on the ballpoint pen significantly contributes to the development of th...

A unique example of a hydrogen-bonded ionic solid with a porosity of 80 %, [Co(H2O)6]3 [Co2Au3 (d-pen-N,S)6]2 (1; d-H2 pen=d-penicillamine), composed of [Co(H2O)6](2+) cations and [Co2Au3 (d-pen-N,S)6 ](3-) anions, is reported. Solid 1 was kinetically produced and was then transformed stepwise into two more thermodynamically stable solids with lower porosities, [Co(H2O)4 ][Co(H2O)6]2 [Co2Au3 (d...