Research Interests:
Research Interests:
Research Interests:
Research Interests: Engineering, Materials Science, Polymer Chemistry, Composites, Morphology, and 15 moreSolar Cells, Photoluminescence, Fullerene, Fullerenes, Polymer, Degradation, Polystyrene, CHEMICAL SCIENCES, Solid State, Molecular weight, Phase Behavior, Copolymer, Block Copolymers, Blend, and Low molecular weight
Abstract Recently, we have developed a way to align diblock copolymer microdomains using shear. The orientation of cylindrical microdomains is nearly perfect over regions millimeters in size, 5 orders of magnitude larger than the... more
Abstract Recently, we have developed a way to align diblock copolymer microdomains using shear. The orientation of cylindrical microdomains is nearly perfect over regions millimeters in size, 5 orders of magnitude larger than the microdomain spacing. Now we ...
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We gratefully acknowledge financial support from the National Science Foundation through the Princeton Center for Complex Materials (DMR-0213706). This work utilized processes and device designs developed at the NIST Combinatorial Methods... more
We gratefully acknowledge financial support from the National Science Foundation through the Princeton Center for Complex Materials (DMR-0213706). This work utilized processes and device designs developed at the NIST Combinatorial Methods Center in Gaithersburg ...
Research Interests:
Research Interests:
Research Interests:
EThOS - Electronic Theses Online ServiceGBUnited Kingdo
Carbon dioxide (CO2), as one of the major anthropogenic greenhouse gases, is widely acknowledged to contribute to global warming and climate change. Historically, the major focus on the role of the aquatic environment in the carbon cycle... more
Carbon dioxide (CO2), as one of the major anthropogenic greenhouse gases, is widely acknowledged to contribute to global warming and climate change. Historically, the major focus on the role of the aquatic environment in the carbon cycle has been on the atmosphere-ocean exchange. More recent findings suggest the importance of freshwater (lakes, rivers and streams) as a source for atmospheric CO2. The freshwater contribution is, however, poorly understood, mainly due to a paucity of data, especially from running waters. To address this issue, eddy covariance (EC) measurements in a large boreal river in Northern Sweden (Indalsalven), are being made as part of a two-year long continual study of the carbon dioxide fluxes between the air and water. This is one of the first known studies of its kind where EC measurements are conducted in a river setting. Continual data acquisition began in April 2018, monitoring a variety of general meteorological parameters, turbulent fluxes of carbon d...
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A cartridge (2, 102) for use in an aerosol generator system, the cartridge comprising: an elongated first compartment (10, 110) having a length L1 and a area in maximum cross-section A1, the first compartment (10, 110) having a first air... more
A cartridge (2, 102) for use in an aerosol generator system, the cartridge comprising: an elongated first compartment (10, 110) having a length L1 and a area in maximum cross-section A1, the first compartment (10, 110) having a first air inlet (20, 120) and a first air outlet (26, 126) and containing a source of nicotine comprising a first carrier material (12, 112) loaded with between 1 milligram and 50 milligrams of nicotine; and a second elongate compartment (14, 114) having a length L2 and area maximum A2 cross section, the second compartment (14, 114) having a second air inlet (22, 122) and a second air outlet (28, 128) and containing a source of acid, wherein the first compartment (10, 110) and the second compartment (14, 114) are arranged in parallel within the cartridge (2, 102) and wherein the ratio ( L1) 2: A1 is at least 12: 1 and the ratio (L2) 2: A2 is at least 12: 1.
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Carbon Dioxide (CO2), as one of the major anthropogenic greenhouse gases, is widely acknowledged to contribute to global warming and climate change. Historically, the major focus on the role of the ...
Research Interests:
Research Interests:
We have studied the annealing of monolayer films of cylindrical polystyrene-b-poly(ethylene-alt-propylene) (PS-PEP) diblock copolymers at fixed temperature, in temperature gradients and in swept temperature gradients. For our PS-PEP... more
We have studied the annealing of monolayer films of cylindrical polystyrene-b-poly(ethylene-alt-propylene) (PS-PEP) diblock copolymers at fixed temperature, in temperature gradients and in swept temperature gradients. For our PS-PEP system conventional annealing yielded correlation lengths on the order of about 3 mu m, sweeping the gradients through the order-disorder transition at a rate of 1 mu m/s yielded correlation lengths on
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The TSTE350 stage was used to perform adhesion tests of transparent thin film electrodes on a PEN substrate at high temperature with a thermal accuracy of ±0.1°C. The data acquired by the stage combined to the optical analysis was key in... more
The TSTE350 stage was used to perform adhesion tests of transparent thin film electrodes on a PEN substrate at high temperature with a thermal accuracy of ±0.1°C. The data acquired by the stage combined to the optical analysis was key in determining the level of adhesion of such thin coatings on the polymer substrate as a function of temperature, as well as providing stress data at elevated temperatures, up to very high strain levels. The benefits of the in-situ method, simultaneously with sample heating are numerous. These include the accurate determination of critical factors, which control the mechanical integrity of ultrathin films, and the ability to reproduce environmental conditions present during process operations, or during operational life of a broad range of flexible electronic devices.
Supervisor: Dr. D.G. Bucknall. Thesis (Part II)--University of Oxford, 2003. Includes bibliographical references.