Numerical modeling and experimentation are used at Xerox Office Group to design, optimize, and verify the fluid dynamic behavior of phase-change ink jets, including the individual jets in a print head. A typical model of an ink jet is based upon lumped-parameter (no spatial variation) assumptions. While quite accurately predicting the main Helmholz resonant frequency (a key performance measure)...

OBJECTIVE Proper identification of surgical margins along with margin status holds utmost importance in histopathology. Inking margins is one way. India ink has long been used but it can ink only one margin. On other hand acrylic colours, available in variety of colours can be used for inking multiple margins along with many more advantages. The present study was undertaken to analyse acrylic c...

The use of four process inks (CMYK) is common practice in the graphic arts, and provides the foundation for many output device technologies. In commercial applications the number of inks are sometimes extended beyond the process inks depending on the customers’ requirements, and cost constraints. In inkjet printing extra inks have been used to both extend the color gamut, and/or improve the ima...

OBJECTIVE The purpose of this UK study was to evaluate interfraction reproducibility and body image score when using ultraviolet (UV) tattoos (not visible in ambient lighting) for external references during breast/chest wall radiotherapy and compare with conventional dark ink. METHODS In this non-blinded, single-centre, parallel group, randomized control trial, patients were allocated to rece...

This article presents a novel method for accelerated wear of squeegees used in screen printing and describes the development of mechanical tests which allow more in-depth measurement of squeegee properties. In this study, squeegees were abraded on the screen press so that they could be used for subsequent print tests to evaluate the effect of wear on the printed product. Squeegee wear was found...

Purpose Pretreatment of fabric with a number chemicals and auxiliaries is prerequisite for inkjet printing. Owing to the rapidly increasing use printing textile fabrics, study effects process variables on various characteristics resulting print has drawn considerable interest recently. The purpose this paper different associated quality print. Specifically, used in pretreatment prior factors su...

India ink introduced into the pancreatic ducts of the cat can escape into the interstitium at pressures below the maximum secretory pressure of the pancreas. The ink appears to leave through clefts between the acinar cells.

The printing quality delivered by a Drop-on-Demand (DoD) inkjet printhead is limited due to the residual oscillations in the ink channel. The maximal jetting frequency of a DoD inkjet printhead can be increased by quickly damping the residual oscillations and by bringing in this way the ink channel to rest after jetting the ink drop. This paper proposes an optimization-based method to design th...

We have studied the offset printing of liquid polymers curable by exposure to ultraviolet light onto flat and unpatterned silicon and glass substrates. The interplay of capillary, viscous, and adhesion forces dominates the dynamics of ink transfer at small feature sizes and low capillary number. For smooth and nonporous substrates, pattern fidelity can be compromised because the ink contact lin...

We examine the common hierarchical data structure of digital ink representations in two distinctive ink domainclasses. Digital boards (eBoard) can receive inputs for both archival and reactionary modes from freehand writings (or drawings) and gesture-commands, respectively, from the digital pens. The latter is modelled as a result of the former in theoretical pattern recognition, and perhaps, m...