Eastman Kodak Company – TechConnect Briefs

Drop Formation and Control of Non-Newtonian Fluid

Gao J., Ng K., Eastman Kodak Company, US

It is well known that fluid jets tend to break up into droplets of multiple sizes. However, the ability to make and control individual droplets from arrays of such jets in speed, number, and size [...]

Modeling Drop Generation at the Microscale

Hanchak M.S., Furlani E.P., Eastman Kodak Company, US

In this presentation a numerical model is described for predicting drop generation from microscale liquid jets of Newtonian fluid. The model uses a one-dimensional slender-jet approximation to obtain the equations of motion for the free-surface [...]

Analysis of an Electrostatically Actuated MEMS Drop Ejector

Furlani E.P., Eastman Kodak Company, US

MEMS are finding increasing use for applications that require the controlled generation and delivery of picoliter-sized droplets. Common applications include biomedical and biochemical microdispensing and most notably, ink jet printing. Micro-droplets can be produced as [...]

Organic Solvent Dispersed TiO2 Nanocrystal Sol: Synthesis and Characterization

Rao Y.Q., Antalek B., Minter J., Mourey T., Blanton T., Slater G., Slater L., Slater G., Slater L., Fornalik J., Eastman Kodak Company, US

Anatase TiO2 nanocrystals with a mean diameter of about 10 nm were successfully synthesized through a non-aqueous sol gel route without the use of air free equipments. The nanocrystals were well dispersed in organic solvents [...]

Numerical Analysis of Nonlinear Deformation and Breakup of Slender Microjets with Application to Continuous Inkjet Printing

Furlani E.P., Eastman Kodak Company, US

Liquid microjets are inherently unstable and can be modulated in a controlled fashion to create steady streams of picoliter-sized droplets at frequency rates in the hundreds of kilohertz. Such modulation has been achieved using CMOS/MEMS [...]

Nanoprobe for Optical Molecular Imaging

Zheng S., Wang R., Che W., Harrison W.J., Yang Z., Li C., Eastman Kodak Company, US

Optical molecular imaging (OMI) is a very powerful tool for studying the temporal and spatial dynamics of specific biomolecules and their interactions in real time in vivo. It exhibits the great advantages of high temporal [...]

Thermal Modulation and Instability of Viscous Microjets

Furlani E.P., Eastman Kodak Company, US

Liquid microjets are inherently unstable and can be broken into droplets by various means including the modulation of pressure, velocity, and/or fluid properties. In this presentation we discuss the controlled breakup of viscous microjets via [...]

Analytical Analysis of a Squeeze Film Dominated MEMS Fluid Ejector

Furlani E.P., Lebens J.A., Eastman Kodak Company, US

We present an analytical model for predicting the behavior of a squeeze film dominated MEMS fluid ejector. The device consists of a piston that moves parallel to an orifice plate, with a thin film of [...]

Snap-Through Bilayer Microbeam

Cabal A., Ross D.S., Eastman Kodak Company, US

In this paper, we describe our theoretical investigations of snap-through bilayer microbeams. We use a mathematical model that we devised to investigate the nonmonotone dependence of the vibrational frequency of such beams on temperature. The [...]

Novel Microfluidic Jet Deflection: Significant Modeling Challenge with Great Application Potential

Delametter C.N., Trauernicht D.P., Chwalek J.M., Eastman Kodak Company, US

A novel method is described for deflecting a liquid jet emanating from an orifice having a diameter of approximately ten microns. While awkward mechanical valves or unwieldy electrodes can be used to deflect a jet, [...]