Search Results - "Roberts, David E."

Digital polarization holography advancing geometrical phase optics by De Sio, Luciano, Roberts, David E, Liao, Zhi, Nersisyan, Sarik, Uskova, Olena, Wickboldt, Lloyd, Tabiryan, Nelson, Steeves, Diane M, Kimball, Brian R

“…Geometrical phase or the fourth generation (4G) optics enables realization of optical components (lenses, prisms, gratings, spiral phase plates, etc.) by…”
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Interdependence of chronic hydraulic dysfunction and canopy processes can improve integrated models of tree response to drought by Mackay, D. Scott, Roberts, David E., Ewers, Brent E., Sperry, John S., McDowell, Nathan G., Pockman, William T.

“…Hydraulic systems of plants have evolved in the context of carbon allocation and fitness trade‐offs of maximizing carbon gain and water transport in the face…”
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Thin waveplate lenses of switchable focal length--new generation in optics by Tabiryan, Nelson V, Serak, Svetlana V, Roberts, David E, Steeves, Diane M, Kimball, Brian R

“…We present new lenses - waveplate lenses created in liquid crystal and liquid crystal polymer materials. Using an electrically-switchable liquid-crystal…”
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Advances in Transparent Planar Optics: Enabling Large Aperture, Ultrathin Lenses by Tabiryan, Nelson V., Roberts, David E., Liao, Zhi, Hwang, Jeoung‐Yeon, Moran, Mark, Ouskova, Olena, Pshenichnyi, Andrii, Sigley, Justin, Tabirian, Anna, Vergara, Rafael, De Sio, Luciano, Kimball, Brian R., Steeves, Diane M., Slagle, Jonathan, McConney, Michael E., Bunning, Timothy J.

“…Unlike electronics, optics do not follow Moore's law. This statement, expressed by Microsoft's Bernard Kress, refers to the hard challenges to solve in…”
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Broadband waveplate lenses by Tabiryan, Nelson V, Serak, Svetlana V, Nersisyan, Sarik R, Roberts, David E, Zeldovich, Boris Ya, Steeves, Diane M, Kimball, Brian R

“…We report on lenses that operate over the visible wavelength band from 450 nm to beyond 700 nm, and other lenses that operate over a wide region in the…”
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Opportunities for next generation vector vortex waveplates by Roberts, David E., Gerosa, Katherine, Ouskova, Olena, Pshenichnii, Andrii, Tabiryan, Nelson V., Serabyn, Eugene

“…Vector vortex waveplates (VVWs) are highly promising technology enabling astronomical coronagraph masks for exoplanet imaging and characterization. Currently,…”
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Umbilical cord blood banking: public good or private benefit? by Roberts, David E

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Vector Vortex Waveplates with Tunable Spectrum and Switchable Topological Charge by Nersisyan, Sarik R., Sigley, Justin, Liao, Zhi, Roberts, David E., Ouskova, Olena, Pshenichnii, Andrii, Tabiryan, Nelson V., Serabyn, Eugene

“…The contrast of astronomical coronagraphs based on vector vortex waveplates (VWs) depends critically on precision of fulfilment of half-wave retardation…”
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Implementing achromatic diffractive waveplate optics with thin, uniformly birefringent layers by Roberts, David E., Sigley, Justin, Ouskova, Olena, Pshenichnii, Andrii, Tabiryan, Nelson V., Ruane, Garreth, Serabyn, Eugene

“…Vector Vortex Coronagraphs can potentially exhibit superior performance in terms of starlight rejection compared to alternative coronagraph technologies aimed…”
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Clinical pharmacokinetics of epoetin (recombinant human erythropoietin) by MACDOUGALL, I. C, ROBERTS, D. E, COLES, G. A, WILLIAMS, J. D

“…Epoetin (recombinant human erythropoietin, EPO) is of proven benefit in the treatment of renal anaemia, and preliminary reports suggest that it may have a role…”
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A numerically stable rational approximant for the split-step Padé propagator by Roberts, David E., Thomson, David J.

“…The split-step Padé algorithm due to Collins [J. Acoust. Soc. Am. 93, 1736–1742 (1993)] provides a fast and accurate method for solving the parabolic equation…”
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Augustine's Earliest Writings by Roberts, David E.

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Top Level Domain Reorganization: A Constitutional Solution to Legislative Attempts at Internet Regulation by Roberts, David E.

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A Christian Appraisal of Humanism by Roberts, David E.

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Is a Christian Philosophy a Contradiction in Terms? by Roberts, David E.

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Osmotically stable L forms of Haemophilus influenzae and their significance in testing sensitivity to pencillins by Roberts, David E., Ingold, A., Want, Susan V., May, J. Robert

“…The sensitivity of Haemophilus influenzae to penicillins in vitro, determined either by serial antibiotic dilution in broth or by the disc method on agar, is…”
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Discussion of Humanism by Burtt, E. A., Roberts, David E.

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Effect of Tissue Anisotropy on Extracellular Potential Fields in Canine Myocardium in Situ by Roberts, David E, Scher, Allen M

“…The extracellular epicardial potential fields produced by simple depolarization waves in the in situ canine left ventricular myocardium were analyzed. A…”
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Implementing the DoD Unique Identification (UID) Requirement and Understanding Its Impact on Manufacturing and Data Management Systems by Roberts, David E., McConnell, J. Ed, Hudgens, R. Mark

“…In July of 2003, the Office of the Secretary of Defense (OSD) issued a memo that made Unique Identification (UID) a mandatory Department of Defense (DoD)…”
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Influence of Cardiac Fiber Orientation on Wavefront Voltage, Conduction Velocity, and Tissue Resistivity in the Dog by ROBERTS, DAVID E, HERSH, LAWRENCE T, SCHER, ALLEN M

“…When the canine epicardium is stimulated, the spread of epicardial excitation is 2.4 times faster parallel to the long axes of the cardiac fibers than…”
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