Suibokuga is a style of monochrome painting characterized by the use of Chinese black ink (sumi), a complex interaction between brush, ink and paper, and such visual features as Noutan (shade), Kasure (scratchiness), and Nijimi (blur). In this paper we present a simple behavioural model of water and ink particles based on a 2D cellular automaton computational model, and its application to a Sui...

We address the problem of organizing pen-based environments for processing handwritten mathematics. Our approach is based on providing portable ink-aware mathematical interfaces to existing document processing software and mathematical packages. Our architecture includes components for on-line ink collection, mathematicallyoriented recognizers, portability support, and interfaces to application...

Where it all began Since the announcement a decade ago by Sajeev John1 in the Physics Department at the University of Toronto that ‘silicon inverse opal’ could theoretically display a complete photonic bandgap at optical telecoms wavelengths, followed soon after by the first self-assembly synthesis of silicon inverse opal, and confirmation, by our research group2, of John’s predictions, many sc...

Human invariant natural killer (iNK) T cells expressing an invariant Valpha24-Jalpha15 T-cell receptor (TCR) are thought to be important regulators of autoimmunity and tumour surveillance. Two major subsets of iNK T cells, CD4+ or CD4- CD8- are known to exist, but the in vivo importance of CD4 expression is unclear. Since interleukin-12 (IL-12) is a key iNK T-cell-activating cytokine, the effec...

India ink was injected through extradural catheters placed in the posterior intercostal space in 12 cadavers undergoing autopsy and the subsequent spread of the India ink was assessed under direct vision. The ink spread subpleurally to reach a number of intercostal spaces and medially to reach the paravertebral space. It is concluded that analgesia extending over a number of dermatomes is achie...

In forensics, the analysis of ink writings from documentation is required for authentication or crime analysis. Ten organic ink dye components typically found in ink pens were separated using the Agilent 1290 Infinity LC System and quantified using the Agilent 6140 single quadrupole LC/MS System. The dyes were separated in less than 3.5 min using a sub-2-μm, 30 mm column. Analysis of ink markin...

Advances in holography have led to applications including data storage, displays, security labels, and colorimetric sensors. However, existing top-down approaches for the fabrication of holographic devices are complex, expensive, and expertise dependent, limiting their use in practical applications. Here, ink-based holographic devices have been created for a wide range of applications in diffra...

Original scientific paper In liquid toner electrophotography, colour gamut is often diminished in the yellow region leading to problems with photo quality prints. It is known that the concentration of pigment particles in the printing ink and its thickness when applied on a paper substrate decisively influence final print quality. Variation of these two parameters for the yellow process ink was...

Sea hares protect themselves from predatory attacks with several modes of chemical defenses. One of these is inking, which is an active release of a protective fluid upon predatory attack. In many sea hares including Aplysia californica and A. dactylomela, this fluid is a mixture of two secretions from two separate glands, usually co-released: ink, a purple fluid from the ink gland; and opaline...