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Showing 1 to 12 of 200 entries
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Synthetic aperture imaging in astronomy and aerospace: introduction.

Journal of the Optical Society of America. A, Optics, image science, and vision

Creech-Eakman MJ, Carney PS, Buscher DF, Shao M.
PMID: 28463328
J Opt Soc Am A Opt Image Sci Vis. 2017 May 01;34(5):SAI1-SAI2. doi: 10.1364/JOSAA.34.00SAI1.

Aperture synthesis methods allow the reconstruction of images with the angular resolutions exceeding that of extremely large monolithic apertures by using arrays of smaller apertures together in combination. In this issue we present several papers with techniques relevant to...

Quality of life outcomes following dacryocystorhinostomy: external and endonasal laser techniques compared.

Orbit (Amsterdam, Netherlands)

Bakri SJ, Carney AS, Robinson K, Jones NS, Downes RN.
PMID: 12045990
Orbit. 1999 Jun;18(2):83-88. doi: 10.1076/orbi.18.2.83.2720.

AIMS/BACKGROUND. Endonasal laser dacryocystorhinostomy (ELDCR) has recently become established as an alternative technique to conventional external DCR (EXDCR) for relief of epiphora. The aim of this study was to compare quality of life and symptomatic outcomes in patients treated...

Atom resolved evidence for a defective chemisorbed oxygen state at a Mg(0001) surface.

Chemical communications (Cambridge, England)

Carley AF, Davies PR, Jones RV, Harikumar KR, Roberts MW.
PMID: 12357759
Chem Commun (Camb). 2002 Sep 21;(18):2020-1. doi: 10.1039/b205212a.

A chemisorbed oxygen state has been revealed for the first time by scanning tunnelling microscopy to be present at the interface between a (1 x 1)-O structure and overlying magnesium atoms; the step-height at the interface is between 0.14...

Tunable gold catalysts for selective hydrocarbon oxidation under mild conditions.

Nature

Hughes MD, Xu YJ, Jenkins P, McMorn P, Landon P, Enache DI, Carley AF, Attard GA, Hutchings GJ, King F, Stitt EH, Johnston P, Griffin K, Kiely CJ.
PMID: 16237439
Nature. 2005 Oct 20;437(7062):1132-5. doi: 10.1038/nature04190.

Oxidation is an important method for the synthesis of chemical intermediates in the manufacture of high-tonnage commodities, high-value fine chemicals, agrochemicals and pharmaceuticals: but oxidations are often inefficient. The introduction of catalytic systems using oxygen from air is preferred...

Generalized optical theorem for reflection, transmission, and extinction of power for electromagnetic fields.

Physical review. E, Statistical, nonlinear, and soft matter physics

Lytle DR, Carney PS, Schotland JC, Wolf E.
PMID: 16089671
Phys Rev E Stat Nonlin Soft Matter Phys. 2005 May;71(5):056610. doi: 10.1103/PhysRevE.71.056610. Epub 2005 May 20.

We present a generalization of the optical theorem for electromagnetic fields. This result is used to obtain the power extinguished from a field by a scatterer contained in a dielectric half space. Applications to microscopy and tomography are described.

Three-dimensional total internal reflection microscopy.

Optics letters

Carney PS, Schotland JC.
PMID: 18049523
Opt Lett. 2001 Jul 15;26(14):1072-4. doi: 10.1364/ol.26.001072.

We investigate the inverse-scattering problem that arises in total internal reflection microscopy. An analytic solution to this problem within the weak-scattering approximation is used to develop a novel form of three-dimensional microscopy with subwavelength resolution.

Switching off hydrogen peroxide hydrogenation in the direct synthesis process.

Science (New York, N.Y.)

Edwards JK, Solsona B, N EN, Carley AF, Herzing AA, Kiely CJ, Hutchings GJ.
PMID: 19229032
Science. 2009 Feb 20;323(5917):1037-41. doi: 10.1126/science.1168980.

Hydrogen peroxide (H2O2) is an important disinfectant and bleach and is currently manufactured from an indirect process involving sequential hydrogenation/oxidation of anthaquinones. However, a direct process in which H2 and O2 are reacted would be preferable. Unfortunately, catalysts for...

Direct synthesis of H(2)O(2) from H(2) and O(2) over gold, palladium, and gold-palladium catalysts supported on acid-pretreated TiO(2).

Angewandte Chemie (International ed. in English)

Edwards JK, Ntainjua E, Carley AF, Herzing AA, Kiely CJ, Hutchings GJ.
PMID: 19802864
Angew Chem Int Ed Engl. 2009;48(45):8512-5. doi: 10.1002/anie.200904115.

No abstract available.

A low energy pathway to CuCl2 at Cu(110) surfaces.

Physical chemistry chemical physics : PCCP

Carley AF, Davies PR, Harikumar KR, Jones RV.
PMID: 19924324
Phys Chem Chem Phys. 2009 Dec 14;11(46):10899-907. doi: 10.1039/b914970h. Epub 2009 Oct 07.

The reaction of hydrogen chloride gas with partially oxidised Cu(110) surfaces follows a different structural pathway than its reaction with a clean surface. In the latter case a c(2 x 2)Cl structure develops which is compressed in the [110]...

Effects of the nanostructuring of gold films upon their thermal stability.

ACS nano

Bowker M, Carley AF, Davies PR, Morgan DJ, Crouch J, Lalev G, Dimov S, Pham DT.
PMID: 20205410
ACS Nano. 2010 Apr 27;4(4):2228-32. doi: 10.1021/nn901614e.

We report results relating to the thermal stability of nanoparticles and show a remarkable effect of nanostructuring of the metal. Au films are nanostructured by focused ion beam sputtering (FIB) to produce isolated areas of metal, which are imaged...

Interferometric Synthetic Aperture Microscopy: Computed Imaging for Scanned Coherent Microscopy.

Sensors (Basel, Switzerland)

Davis BJ, Marks DL, Ralston TS, Carney PS, Boppart SA.
PMID: 20948975
Sensors (Basel). 2008 Jun 01;8(6):3903-3931. doi: 10.3390/s8063903.

Three-dimensional image formation in microscopy is greatly enhanced by the use of computed imaging techniques. In particular, Interferometric Synthetic Aperture Microscopy (ISAM) allows the removal of out-of-focus blur in broadband, coherent microscopy. Earlier methods, such as optical coherence tomography...

Encapsulation of Au Nanoparticles on a Silicon Wafer During Thermal Oxidation.

The journal of physical chemistry. C, Nanomaterials and interfaces

Bowker M, Crouch JJ, Carley AF, Davies PR, Morgan DJ, Lalev G, Dimov S, Pham DT.
PMID: 24163715
J Phys Chem C Nanomater Interfaces. 2013 Oct 17;117(41):21577-21582. doi: 10.1021/jp4074043. Epub 2013 Sep 20.

We report the behavior of Au nanoparticles anchored onto a Si(111) substrate and the evolution of the combined structure with annealing and oxidation. Au nanoparticles, formed by annealing a Au film, appear to "float" upon a growing layer of...

Showing 1 to 12 of 200 entries