Abstract:Atmospheric nucleation processes produce large numbers of particles. Once formed, these particles grow rapidly and may alter the formation and lifetime of clouds, and thereby influence the earths radiation balance. Rapid growth of newly formed particles has been observed in… more
Abstract:… individual CNTs can be grown to previously unprecedented lengths (>0.5 m). In this Phase I SBIR project, we plan to demonstrate a new approach to growth of ultra-long CNTs that are mechanically isolated during the growth process. This will be achieved by nucleating… more
Abstract:…ies, compact catalytic converters for pollution control, high-speed crackers for petroleum reforming, high capacity filters and scrubbers for impurity control, high pumping speed absorbers for extreme high vacuum systems, diagnostic sensors, high density nucleation surfaces for… more
Abstract:…, and the W -Fe alloys survived multiple heating cycles to 1200C at a heating rate of 20C/sec. Dislocation motion in tungsten and W -Fe alloys was modeled u sing three complementary approaches: molecular dynamics, quantum m echanics, and kink pair nucleation and motion… more
Abstract:… from atmospheric new particle formation and growth. Sulfuric acid vapor plays a key role in new particle formation, although detailed mechanisms remain unclear. Recent experiments have shown that trace levels of organic amine vapors can enhance particle nucleation by 1000… more
Abstract:… improved room-temperature mechanical strength and high-temperature creep-resistance as compared to scandium-containing alloys. NanoAl LLC will design and assess castable, heat- treatable aluminum-zirconium alloy ingots with nanometric Zr-based precipitates nucleated by trace… more
Abstract:Atmospheric nucleation processes produce large numbers of particles. Once formed, these particles grow rapidly and may alter the formation and lifetime of clouds, and thereby influence the earths radiation balance. Rapid growth of newly formed particles has been observed in many… more
Abstract:…, relaxed constraints on size and shape, and the possibility of producing materials that are difficult or impossible to grow as single crystals. The program will investigate control of particle size using mechanical separation and chemical approaches to limit nucleation,… more
Abstract:…ne observations over the 0.01 to 10 micrometer diameter range. A condensation particle counter that has already operated on-board an unmanned aerial vehicle will serve as the small particle detector. The compact cloud condensation nucleus counter allows the cloud nucleating… more
Abstract:…for tomorrow"s leveraged electronics. The company is proposing the development of a novel layer-by-layer patterned growth from direct digital design for semiconductor electronics manufacturing. The material growth technology is a modified heterogeneous patterned … more
Abstract:… known authority in this area of will serve as an advisor for in vitro testing that will be conducted at IET and University of Buffalo, SUNY chemical engineering dept. We hope to establish the significant inhibitory effect of our inhibitor compounds on CaOx nucleation, growth… more
Abstract:… uses 1 - 2 L liquid product samples frozen between microscope slides, resulting in a frozen product thickness of 50 - 100 m. These samples are not representative of samples dried in vials which may have thicknesses of 5 - 50 mm. Thin films have different ice nucleation rates,… more
Abstract:… solidified blades, and are widely used in aerospace engines. However, their use in IGTs, which require larger size castings (2-3X compared to aerospace), is limited due to casting related defects such as freckling, high angle boundary (HAB) formation, grain … more
Abstract:TDA"s Phase II effort will focus on understanding of microstructural damage evolution during pre-crack nucleation, stress field imposition, development of corrosion susceptibility, and role of environment and the material properties and developing methodologies… more
Abstract:… this unmet medical need with rapid, high yield ex vivo expansion of UCB cells using our NANEXTM expansion platform. The NANEXTM platform is based on a nano-fiber scaffold that mimics the bone marrow stem cell niche and has been shown to expand UCB total nucleated cells (TNCs)… more
Abstract:… silicon, titanium nitride, and niobium, to the metallic fuels will be developed. A dedicated reactor will be designed and built, and silicon and niobium coatings will be applied to depleted uranium (or DU-Mo) powders to investigate differences in nucleation and growth… more
Abstract:… power electronics applications. However, the manufacturing of reliable SiC power devices is a critical challenge because of the degradation of the forward current gain or voltage drop attributed to the propagation of Shockley-type stacking faults (SF) which are nucleated… more
Abstract:TDA recognizes the need for analytical formulations for crack nucleation predictions and sensors to detect crack nucleation in environment assisted cracking of Naval aircraft structures. TDA proposes to investigate the role of microstructural damage evolution during pre-crack… more
Abstract:… of this project is the elimination of active defects formed during molecular-beam epitaxy (MBE) of HgCdTe (the active layer in the arrays) on alternative substrates, i.e. materials other than lattice-matched CdZnTe. A significant fraction of as-grown defects nucleate at… more
Abstract:…, theoretical development, and validation. Small scale boiling experiments are suggested for improving the understanding of sub cooled oil boiling heat transfer. In particular, specific experiments are proposed for improving the understanding of nucleate site density… more
Abstract:To address the US Navy"s need for an innovative nondestructive evaluation (NDE) technique to detect the onset of crack nucleation in wet and dry corrosion environments under various stress fields and gradients. X-wave Innovations, Inc. (XII) along with Loyola University… more
Abstract:Physical Sciences Inc. proposes to apply its patented microwave driven jet (MIDJet) technology for low cost production of silicon nanopowders. The MIDJet will be used to form a narrow plasma jet from SiH4 gas and via supersonic expansion, nucleate/grow silicon nanopowders with… more
Abstract:We propose to develop a non-thermal soot denuder for measuring chemical components of the nucleation mode particulate matter emissions from gas turbine engines, in combination with an Aerodyne Aerosol Mass Spectrometer (AMS). This proposed approach will effectively eliminate the… more
Abstract:… the materials and biological sciences and in particular for the development of nanotechnology to answer the growing needs to protect our environment, increase energy efficiency and develop clean energy sources. Achieving a fundamental understanding of materials nucleation and… more
Abstract:Ice crystals can form spontaneously from the freezing of water droplets at temperatures colder than -38C - homogeneous nucleation - or from multiple processes termed heterogeneous nucleation that occur on refractory/insoluble substances at warmer temperatures… more
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