Browsing Citations Only by Title
Now showing items 687-706 of 990
-
Photoetching and modification of organic polymer surfaces with vacuum UV radiation
(Elsevier: Polymer Degradation and Stability, 1993)Commercially available organic polymer films were treated with radiation from 6·7 × 104 Pa He and Ar plasmas that were made to rotate inside a graphite tube by the application of an auxiliary magnetic field. To investigate ... -
Photoetching and modification of poly(tetrafluoroethylene-co-hexafluoropropylene) polymer surfaces with vacuum UV radiation
(Elsevier: Polymer Degradation and Stability, 2003-03)Films of poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) were exposed to radiation from 6.7 x 104 Pa He and Ar dc arc plasmas that were made to rotate inside of a graphite tube by the application of an auxiliary ... -
A Photographic insight into the motion of liquid-vapor interface during rapid evaporation of a liquid droplet on a heated surface
(American Society of Mechanical Engineers (ASME), 2001-11)Photographic observations of the boiling phenomena have played an important role in gaining insight into the boiling mechanism. This paper presents a brief historical review of the available literature on the photographic ... -
A photographic study of nucleation characteristics of cavities in flow boiling
(Taylor & Francis, 1995)In the present investigation, the effects of wall superheat and flow velocity on the nucleation characteristics of cavities of different radii have been experimentally determined for flow boiling of subcooled water near ... -
Photography: Making every photon count
(Nature Publishing Group, 1999-12-23)More than 150 years after the invention of photography, the underlying solid-state photochemistry is still being investigated and improved. One aspect of continual importance is the efficiency of the image-recording stage, ... -
Photoisomerization of the ruthenium cluster HRu3(CO)10(.mu.-COCH3), an unprecedented oxygen-to-carbon alkyl migration
(The American Chemical Society: Journal of the American Chemical Society, 1986-11-26) -
Photopatterning hybrid sol–gel glass materials prepared from ethylene tellurate and alkoxysilane
(Elsevier: Journal of Non-Crystalline Solids, 2005-09-01)Photopatterning of sol–gels is a versatile technique that has been used to prepare optical components and devices of silica and titania. Telluria (TeO2) has a higher third-order non-linearity than silica and titania and ... -
Photoreactions of docosylcarbonyloctairidate(2-). Homolytic cleavage of an unsupported metal-metal bond linking two tetrahedral iridium carbonyl clusters
(The American Chemical Society: Inorganic Chemistry, 1988-02-28) -
Photoreactions of the triruthenium cluster HRu3(CO)10 (.mu.-COCH3). Isomerization of the bridging alkylidyne ligand and competing ligand substitutions
(The American Chemical Society: Journal of the American Chemical Society, 1989-01-18)Irradiation of the title compound HRu3(CO)10(u-COCH3) (A) in hydrocarbon solution under CO leads to the formation of the bridging u,n2 acyl isomer HRu3(CO)10(u,n2-C(O)CH3) (B). Quantum yields for isomerization phi-i were ... -
Photoreactions of the triruthenium cluster Ru3(CO)12 and substituted analogs
(The American Chemical Society: Journal of the American Chemical Society, 1986-04-16)Reported is a comprehensive investigation of the medium, ligand, and wavelength effects on the quantum yields and flash photolysis kinetics for the photofragmentation and photosubstitution reactions of the trinuclear ... -
Physiological basis of habitat partitioning in Jamaican Eleutherodactylus
(Springer: Oecologia, 1977-12)Rate of evaporation, resistance to drying, temperature selection, and critical thermal maximum were measured for Jamaican Eleutherodactylus acclimated to 20° C and a 12:12 L:D photoperiod. Two introduced species, E. ... -
Phytotoxicity of American beech leaf leachate to sugar maple seedlings in a greenhouse experiment
(National Research Council Canada: Canadian Journal of Forest Research, 2003)In an effort to reexamine the factors that affect codominance of American beech (Fagus grandifolia Ehrh.) and sugar maple (Acer saccharum Marsh.), a greenhouse experiment was conducted to test the potential phytotoxic ... -
PKS2250-41 and the role of jet-cloud interactions in powerful radio galaxies (full paper)
(Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 1999-02)We present high resolution, long-slit spectra of the jet-cloud interaction in the powerful southern radio galaxy PKS2250-41.We have resolved the emission lines into two main kinematic components: a broad component (FWHM ... -
Plasma and beam facility atomic oxygen erosion of a transition metal complex
(Springer-Verlag: Plasma Chemistry and Plasma Processing, 1996-06)Glassy residues of the complex bis(N,N-disalicylidene-1,2-phenylenediamino)zirconium(IV), Zr(dsp)2, on glass slides were exposed to atomic oxygen in a plasma asher or an atomic beam facility for various amounts of lime in ... -
Plasma influence on the dispersion properties of finite-length, corrugated waveguides
(The American Physical Society, 1996-03)We present an experimental study of the electromagnetic properties of transverse magnetic modes in a corrugated-wall cavity filled with a radially inhomogeneous plasma. The shifts of the .resonant frequencies of a ... -
Poly(N-vinylcarbazole): A selective review of its polymerization, structure, properties, and electrical characteristics
(Wiley: Journal of Polymer Science: Macromolecular Reviews, 1978-05) -
The polymerization of phenylacetylene in carbon tetrachloride in the presence of light-activated W(CO)6
(Wiley: Journal of Polymer Science Part A: Polymer Chemistry, 1989-12)A study of the apparent reaction rate constants of phenylacetylene polymerized in CCl4 in the presence of light-activated W(CO)6 and of the molecular weight of the resulting polymer indicates that the propagating centers ... -
Population density of tropical forest frogs: relation to retreat sites
(American Association for the Advancement of Science: Science, 1983)The forest frog Eleutherodactylus coqui defends specific sites for retreats and nests in the Luquillo Forest, Puerto Rico. The hypothesis that shortages of nest and retreat sites limit population size was tested by placing ... -
Portable cell-based biosensor system for toxin detection
(Elsevier www.elsevier.com/locate/sensorb, 1998-12)A portable cell-based biosensor has been developed and characterized. The prototype system relies on extracellular recording from excitable cells cultured over an array of platinized gold microelectrodes. Extracellular ... -
Positive halogens from halides and hydrogen peroxide with organotellurium catalysts
(The American Chemical Society: Journal of the American Chemical Society, 1996-01-17)The oxidations of sodium bromide, sodium chloride, and sodium iodide to positive halogen with hydrogen peroxide in two-phase systems of dichloromethane and pH 6 phosphate buffer were catalyzed by organotellurium catalysts ...