National Library of Energy BETA

Sample records for milli micro nano

  1. Future Roles of Milli-, Micro-, and Nano- Grids

    E-Print Network [OSTI]

    Marnay, Chris

    2012-01-01

    Integrating supergrids and microgrids Bologna, Italy, 13-15distribution system, microgrids which are akin to currentA possible definition for microgrids is: Microgrids are

  2. Future Roles of Milli-, Micro-, and Nano- Grids

    SciTech Connect (OSTI)

    Marnay, Chris; Nordman, Bruce; Lai, Judy

    2011-07-01

    Although it has slowed considerably, consumption of electricity continues to grow in developed economies. Further, there are some unknowns which might accelerate this growth, such as electrification of vehicle fleets and geothermal heat pump space and water heating. Most analysts anticipate that distributed energy resources (DER) will provide a large share of the expanded generation capacity required to meet this seemingly inexorably increasing electricity demand. Further, given the urgency of tackling the climate change problem, most of the added assets must be carbonfree renewables or nuclear, end-use efficiency improvements, or highly efficient fossil-fired technologies. In developed economies worldwide, the current power delivery paradigm has been in place for more than a century, i.e. since the emergence of polyphase AC systems around the turn of the last century. A key feature of this structure is that, in principle, universal service is delivered at a consistent level of power quality and reliability (PQR) throughout large regions. This paper describes a future possible structure for the electricity generation and delivery system that leaves the existing high voltage meshed grid paradigm in place, but involves radical reorganization of parts of the distribution network and customer sites. Managing a much more diverse dispersed system poses major challenges to the current centralized grid paradigm, particularly since many of these assets are small to tiny by macrogrid standards and they may ultimately number in the millions. They are also not ones that centralized control can rely upon to function in traditionally dependable ways, e.g. renewable generation can be highly variable and changes in output of generators are not independent. Although most involved in the industry agree that a paradigm shift is both necessary and desirable to manage the new system, the nature of the future system remains quite unclear. In the possible structure described here, the traditional grid, or macrogrid, remains similar at the high voltage meshed level. Three new entities are added more locally: community grids or milligrids that operate a segment of the existing distribution system, microgrids which are akin to current customer sites but which have automonous control, and nanogrids, such as telecom or Ethernet networks that currently distribute power to many low-power devices. The latter exist currently in the local electrical systems but are not typically considered a part of the traditional electricity supply system. Because all these new entities exhibit some localized control, providing appropriate local heterogeneous PQR becomes a possibility. These new grid concepts enable a more"bottom-up" approach to electricity distribution, in contrast to the historic 'top-down' model. The future will almost certainly include a mix of the two, but the balance among them and the interface (if any) between them is unclear.

  3. Future Roles of Milli-, Micro-, and Nano- Grids

    E-Print Network [OSTI]

    Marnay, Chris

    2012-01-01

    on Integration of Renewable and Distributed Energy Resourceson Integration of Renewable and Distributed Energy Resourceson Integration of Renewable and Distributed Energy Resources

  4. Grain Boundary (GB) Studies in Nano- and Micro- Crystalline Materials

    E-Print Network [OSTI]

    Tanju, Mst Sohanazaman

    2011-01-01

    in Nano- and Micro- Crystalline Materials A Dissertationdense nano and micron crystalline materials were measuredStudies in Nano- and Micro- Crystalline Materials by Mst.

  5. Haptic Simulation for Micro/Nano-Scale Optical Fiber Assembly

    E-Print Network [OSTI]

    Xiao, Jing

    for designing leaning- based controller for automated micro/nano-scale optical fiber assembly. I. INTRODUCTION prototying is useful in prod- uct design and manufacturing in general, it is particularly crucial for manufacturing at micro/nano-scale [2] [3] [4]. Unlike normal-scale operations, visual feedback (through mi

  6. A Review Of Recent Progress On Nano/micro Scale Nucleate Boiling Fundamentals

    E-Print Network [OSTI]

    Chung, J. N.

    2011-01-01

    Recent research progress in the area of nano/micro scale nucleate boiling is reviewed and an up-to-date summary is provided with a focus on the advances of fundamental boiling physics. This review examines nano/micro scale ...

  7. Direct and quantitative broadband absorptance micro/nano spectroscopy using FTIR and bilayer cantilever probes

    E-Print Network [OSTI]

    Hsu, Wei-Chun

    2012-01-01

    Optical properties of micro/nano materials are important for many applications in biology, optoelectronics, and energy. In this thesis, a method is described to directly measure the quantitative absorptance spectra of ...

  8. MRI Magnetic Signature Imaging, Tracking and Navigation for Targeted Micro/Nano-capsule Therapeutics

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    - back for the microdevice and a propulsion sequence to enable interleaved magnetic propulsionMRI Magnetic Signature Imaging, Tracking and Navigation for Targeted Micro J. Nelson, Antoine Ferreira and Sergej Fatikow Abstract-- The propulsion of nano

  9. Energy-efficient tunable silicon photonic micro-resonator with graphene transparent nano-heaters

    E-Print Network [OSTI]

    Yu, Longhai; Dai, Daoxin; He, Sailing

    2015-01-01

    Thermally-tuning silicon micro-cavities are versatile and beneficial elements in low-cost large-scale photonic integrated circuits (PICs). Traditional metal heaters used for thermal tuning in silicon micro-cavities usually need a thick SiO2 upper-cladding layer, which will introduce some disadvantages including low response speed, low heating efficiency, low achievable temperature and complicated fabrication processes. In this paper, we propose and experimentally demonstrate thermally-tuning silicon micro-disk resonators by introducing graphene transparent nano-heaters, which contacts the silicon core directly without any isolator layer. This makes the graphene transparent nano-heater potentially to have excellent performances in terms of the heating efficiency, the temporal response and the achievable temperature. It is also shown that the graphene nano-heater is convenient to be used in ultrasmall photonic integrated devices due to the single-atom thickness and excellent flexibility of graphene. Both experi...

  10. Micro- & Nano-Technologies Enabling More Compact, Lightweight...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    performance and cost of micro-honeycombs to conventional heat exchange structures to highlight performance enhancement mechanisms hendricksam.pdf More Documents &...

  11. Industry Symposium on Micro and Nano scale Cellular Polymers Department of Mechanical Engineering

    E-Print Network [OSTI]

    Kumar, Vipin

    .00 Gas-Assisted Thermoforming of Recycled PET Stephen Probert and Krishna Nadella 11.30 Porous PolymersIndustry Symposium on Micro and Nano scale Cellular Polymers Department of Mechanical Engineering, College of Engineering Professor Mark Tuttle, Chair, ME 8.30 State of Art of Microcellular Polymers Prof

  12. Micro/Nano Materials for Energy Storage, Fuel Cells and Sensors

    E-Print Network [OSTI]

    Nakamura, Iku

    15 Micro/Nano Materials for Energy Storage, Fuel Cells and Sensors Speaker: Prof. Dr. Li-Xian Sun energy including hydrogen storage material, fuel cells such as biofuel cells, proton exchange membrane fuel cells, direct methanol fuel cells, clean combustion of coal, etc.; 3) Bio/chemical sensors based

  13. BioSystems Review 59 BioNano/Micro System in Nanobiotechnology

    E-Print Network [OSTI]

    Park, Je-Kyun

    of BioNano/Micro System applies both nanotechnology and MEMS (microelectromechanical systems) to solve nanotechnology and MEMS (microelectromechanical systems) to solve biological and medical problems as well biological and medical problems as well as biological structures and principles to solve engineering MEMS

  14. Development of Micro/Nano-Scale Sensors for Investigation of Heat Transfer in Multi-Phase Flows 

    E-Print Network [OSTI]

    Jeon, Sae Il

    2012-10-19

    The objective of this investigation was to develop micro/nano-scale temperature sensors for measuring surface temperature transients in multi-phase flows and heat transfer. Surface temperature fluctuations were measured on substrates exposed...

  15. Predictive design and fabrication of complex micro and nano patterns via wrinkling for scalable and affordable manufacturing

    E-Print Network [OSTI]

    Saha, Sourabh Kumar

    2014-01-01

    There is a demonstrated need for scalable and affordable manufacturing of complex micro and nano scale structures for applications such as fluidics-based medical diagnostics and photonicsbased sensing. Although high-rate ...

  16. Centrifugal casting and fast curing of polydimethylsiloxane (PDMS) for the manufacture of micro and nano featured components

    E-Print Network [OSTI]

    Mazzeo, Aaron D. (Aaron David), 1979-

    2009-01-01

    The thermosetting resin polydimethylsiloxane (PDMS) is commonly used to prototype micro and nano featured components. In the field of microfluidics, PDMS-based devices have been used for cell sorting, cell culturing, ...

  17. Micro- & Nano-Technologies Enabling More Compact, Lightweight

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURING OFFICESpecial ReportProposal toDepartment ofEnergy Michigan StateMicro

  18. Efficient gas sensitivity in mixed bismuth ferrite micro (cubes) and nano (plates) structures

    SciTech Connect (OSTI)

    Waghmare, Shivaji D.; Jadhav, Vijaykumar V.; Gore, Shaym K.; Yoon, Seog-Joon; Ambade, Swapnil B.; Lokhande, B.J.; Mane, Rajaram S.; Han, Sung-Hwan

    2012-12-15

    Graphical abstract: Display Omitted Highlights: ? Micro (cubes) structure embedded in nano (plates) of bismuth ferrite was prepared by a chemical method. ? These structures were characterized by XRD and SEM. ? LPG, CO{sub 2} and NH{sub 4} gases were exposed. ? Properties related to gas sensors were measured and reported. -- Abstract: Mixed micro (cubes) and nano (plates) structures of bismuth ferrite (BFO) have been synthesized by a simple and cost-effective wet-chemical method. Structural, morphological and phase confirmation characteristics are measured using X-ray diffraction, field-emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray analysis techniques. The digital FE-SEM photo-images of BFO sample confirmed an incubation of discrete micro-cubes into thin and regularly placed large number of nano-plates. The bismuth ferrite, with mixed structures, films show considerable performance when used in liquefied petroleum (LPG), carbon dioxide (CO{sub 2}) and ammonium (NH{sub 3}) gas sensors application. Different chemical entities in LPG have made it more efficient with higher sensitivity, recovery and response times compared to CO{sub 2} and NH{sub 3} gases. Furthermore, effect of palladium surface treatment on the gas sensitivity and the charge transfer resistances of BFO mixed structures is investigated and reported.

  19. Raster-scanning serial protein crystallography using micro- and nano-focused synchrotron beams

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Coquelle, Nicolas; Brewster, Aaron S.; Kapp, Ulrike; Shilova, Anastasya; Weinhausen, Britta; Burghammer, Manfred; Colletier, Jacques -Philippe

    2015-04-25

    High-resolution structural information was obtained from lysozyme microcrystals (20 µm in the largest dimension) using raster-scanning serial protein crystallography on micro- and nano-focused beamlines at the ESRF. Data were collected at room temperature (RT) from crystals sandwiched between two silicon nitride wafers, thereby preventing their drying, while limiting background scattering and sample consumption. In order to identify crystal hits, new multi-processing and GUI-driven Python-based pre-analysis software was developed, named NanoPeakCell, that was able to read data from a variety of crystallographic image formats. Further data processing was carried out using CrystFEL, and the resultant structures were refined to 1.7 Ĺmore »resolution. The data demonstrate the feasibility of RT raster-scanning serial micro- and nano-protein crystallography at synchrotrons and validate it as an alternative approach for the collection of high-resolution structural data from micro-sized crystals. Advantages of the proposed approach are its thriftiness, its handling-free nature, the reduced amount of sample required, the adjustable hit rate, the high indexing rate and the minimization of background scattering.« less

  20. High-precision micro/nano-scale machining system

    DOE Patents [OSTI]

    Kapoor, Shiv G.; Bourne, Keith Allen; DeVor, Richard E.

    2014-08-19

    A high precision micro/nanoscale machining system. A multi-axis movement machine provides relative movement along multiple axes between a workpiece and a tool holder. A cutting tool is disposed on a flexible cantilever held by the tool holder, the tool holder being movable to provide at least two of the axes to set the angle and distance of the cutting tool relative to the workpiece. A feedback control system uses measurement of deflection of the cantilever during cutting to maintain a desired cantilever deflection and hence a desired load on the cutting tool.

  1. A general procedure for thermomechanical calibration of nano/micro-mechanical resonators

    SciTech Connect (OSTI)

    Hauer, B.D., E-mail: bhauer@ualberta.ca; Doolin, C.; Beach, K.S.D., E-mail: kbeach@ualberta.ca; Davis, J.P., E-mail: jdavis@ualberta.ca

    2013-12-15

    We describe a general procedure to calibrate the detection of a nano/micro-mechanical resonator’s displacement as it undergoes thermal Brownian motion. A brief introduction to the equations of motion for such a resonator is presented, followed by a detailed derivation of the corresponding power spectral density (PSD) function, which is identical in all situations aside from a system-dependent effective mass value. The effective masses for a number of different resonator geometries are determined using both finite element method (FEM) modeling and analytical calculations. -- Highlights: •Model micro- and nanomechanical resonators displaced by their own thermal motion. •Review the theoretical framework for describing thermomechanical systems. •Present a recipe for measurement calibration on devices of arbitrary shape. •Point out and correct inconsistencies in the existing literature. •Provide an authoritative guide and reference for practitioners in this area.

  2. Appeared in Robotica, vol. 23, pp. 435-439 (2005). Manufacturing of Two and Three-Dimensional Micro/Nano-Structures

    E-Print Network [OSTI]

    Sitti, Metin

    2005-01-01

    linkages for fabricating 2D and 3D micro/nanostructures. A holographic multiple trap optical tweezers manipulation, bonding, 3D micro/nano- assembly, and limitations to specific materials, environments, and sizes with organic and inorganic materials. Keywords ­ Micro/Nanorobotics, Optical Tweezers, Chemical Assembly, Micro

  3. QUASI-STATIC AND DYNAMIC TORSION TESTING OF CERAMIC MICRO AND NANO-STRUCTURED COATINGS USING SPECKLE PHOTOGRAPHY

    E-Print Network [OSTI]

    Espinosa, Horacio D.

    QUASI-STATIC AND DYNAMIC TORSION TESTING OF CERAMIC MICRO AND NANO-STRUCTURED COATINGS USING and WC/Co coatings on aluminum substrates is presented. A stored energy Kolsky bar apparatus was used of deformation mechanisms as a function of coating grain size. The interaction between coating and substrate

  4. Thermal properties of the hybrid graphene-metal nano-micro-composites: Applications in thermal interface materials

    E-Print Network [OSTI]

    Thermal properties of the hybrid graphene-metal nano-micro-composites: Applications in thermal) The authors report on synthesis and thermal properties of the electrically conductive thermal interface materials with the hybrid graphene-metal particle fillers. The thermal conductivity of resulting composites

  5. Microfluidics for Tissue and Cell Applications JST CREST, "Cell and Tissue Showcasing by Micro-Nano Integrated Devices" Project

    E-Print Network [OSTI]

    Tokyo, University of

    Microfluidics for Tissue and Cell Applications JST CREST, "Cell and Tissue Showcasing by Micro-Nano Integrated Devices" Project JST-VINNOVA/SSF SICP, "Microfluidic Cancer Diagnosis Platform" Project JST ERATO 2 : Prof. Shuichi Takayama (University of Michigan) "Microfluidic Tools to Model and Analyze

  6. Ultraviolet photosensitivity of sulfur-doped micro- and nano-crystalline diamond

    SciTech Connect (OSTI)

    Mendoza, Frank; Makarov, Vladimir; Hidalgo, Arturo; Weiner, Brad; Morell, Gerardo

    2011-06-06

    The room-temperature photosensitivity of sulfur-doped micro- (MCD), submicro- (SMCD) and nano- (NCD) crystalline diamond films synthesized by hot-filament chemical vapor deposition was studied. The structure and composition of these diamond materials were characterized by Raman spectroscopy, scanning electron microscopy and X-ray diffraction. The UV sensitivity and response time were studied for the three types of diamond materials using a steady state broad UV excitation source and two pulsed UV laser radiations. It was found that they have high sensitivity in the UV region, as high as 109 sec-1mV-1 range, linear response in a broad spectral range below 320 nm, photocurrents around ~10-5 A, and short response time better than 100 ns, which is independent of fluency intensity. A phenomenological model was applied to help understand the role of defects and dopant concentration on the materials’ photosensitivity.

  7. Ultraviolet photosensitivity of sulfur-doped micro- and nano-crystalline diamond

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Mendoza, Frank; Makarov, Vladimir; Hidalgo, Arturo; Weiner, Brad; Morell, Gerardo

    2011-06-06

    The room-temperature photosensitivity of sulfur-doped micro- (MCD), submicro- (SMCD) and nano- (NCD) crystalline diamond films synthesized by hot-filament chemical vapor deposition was studied. The structure and composition of these diamond materials were characterized by Raman spectroscopy, scanning electron microscopy and X-ray diffraction. The UV sensitivity and response time were studied for the three types of diamond materials using a steady state broad UV excitation source and two pulsed UV laser radiations. It was found that they have high sensitivity in the UV region, as high as 109 sec-1mV-1 range, linear response in a broad spectral range below 320 nm, photocurrentsmore »around ~10-5 A, and short response time better than 100 ns, which is independent of fluency intensity. A phenomenological model was applied to help understand the role of defects and dopant concentration on the materials’ photosensitivity.« less

  8. Determination of reactive oxygen species from ZnO micro-nano structures with shape-dependent photocatalytic activity

    SciTech Connect (OSTI)

    He, Weiwei; Zhao, Hongxiao; Jia, Huimin; Yin, Jun-Jie; Zheng, Zhi

    2014-05-01

    Graphical abstract: ZnO micro/nano structures with shape dependent photocatalytic activity were prepared by hydrothermal reaction. The generations of hydroxyl radical, superoxide and singlet oxygen from irradiated ZnO were identified precisely by electron spin resonance spectroscopy. The type of reactive oxygen species was determined by band gap structure of ZnO. - Highlights: • ZnO micro/nano structures with different morphologies were prepared by solvothermal reaction. • Multi-pod like ZnO structures exhibited superior photocatalytic activity. • The generations of hydroxyl radical, superoxide and singlet oxygen from irradiated ZnO were characterized precisely by electron spin resonance spectroscopy. • The type of reactive oxygen species was determined by band gap structure of ZnO. - Abstract: ZnO micro/nano structures with different morphologies have been prepared by the changing solvents used during their synthesis by solvothermal reaction. Three typical shapes of ZnO structures including hexagonal, bell bottom like and multi-pod formed and were characterized by scanning electron microscopy and X-ray diffraction. Multi pod like ZnO structures exhibited the highest photocatalytic activity toward degradation of methyl orange. Using electron spin resonance spectroscopy coupled with spin trapping techniques, we demonstrate an effective way to identify precisely the generation of hydroxyl radicals, superoxide and singlet oxygen from the irradiated ZnO multi pod structures. The type of reactive oxygen species formed was predictable from the band gap structure of ZnO. These results indicate that the shape of micro-nano structures significantly affects the photocatalytic activity of ZnO, and demonstrate the value of electron spin resonance spectroscopy for characterizing the type of reactive oxygen species formed during photoexcitation of semiconductors.

  9. Search milli-charged particles at SLAC

    SciTech Connect (OSTI)

    Langeveld, W.G.J. [Stanford Univ., CA (United States)

    1997-01-01

    Particles with electric charge q {triple_bond} Qe {le} 10{sup -3} e and masses in the range 1-1000 MeV/c{sup 2} are not excluded by present experiments or by astrophysical or cosmological arguments. A beam dump experiment uniquely suited to the detection of such {open_quotes}milli-charged{close_quotes} particles has been carried out at SLAC, utilizing the short-duration pulses of the SLC electron beam to establish a tight coincidence window for the signal. The detector, a large scintillation counter sensitive to very small energy depositions, provided much greater sensitivity than previous searches. Analysis of the data leads to the exclusion of a substantial portion of the charge-mass plane. In this report, a preliminary mass-dependent upper limit is presented for the charge of milli-charged particles, ranging from Q = 1.7 x 10{sup -5} at milli-charged particle mass 0.1 MeV/c{sup 2} to Q = 9.5 x 10{sup -4} at 100 MeV/c{sup 2}.

  10. CHSLT -Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering Department/NEST -NanoEngineering, Science, and Technology

    E-Print Network [OSTI]

    Furlong, Cosme

    CHSLT - Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering 2014 WORCESTER POLYTECHNIC INSTITUTE MECHANICAL ENGINEERING DEPARTMENT Optical Metrology and NDT ME-593 and Laser micro-mechaTronics Mechanical Engineering Department/NEST - NanoEngineering, Science

  11. CHSLT -Center for Holographic Studies and Laser micro-mechaTronics WPI Mechanical Engineering Department/NEST -NanoEngineering, Science, and Technology

    E-Print Network [OSTI]

    Furlong, Cosme

    CHSLT - Center for Holographic Studies and Laser micro-mechaTronics WPI Mechanical Engineering - Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering Department Worcester-mechaTronics WPI Mechanical Engineering Department/NEST - NanoEngineering, Science, and Technology #12;CHSLT

  12. From micro- to nano-scale molding of metals : size effect during molding of single crystal Al with rectangular strip punches.

    SciTech Connect (OSTI)

    Chen, K.; Meng, W. J.; Mei, F.; Hiller, J.; Miller, D. J. (Materials Science Division); (Louisiana State Univ.); (Enervana Tech. LLC)

    2011-02-01

    A single crystal Al specimen was molded at room temperature with long, rectangular, strip diamond punches. Quantitative molding response curves were obtained at a series of punch widths, ranging from 5 {micro}m to 550 nm. A significant size effect was observed, manifesting itself in terms of significantly increasing characteristic molding pressure as the punch width decreases to 1.5 {micro}m and below. A detailed comparison of the present strip punch molding results was made with Berkovich pyramidal indentation on the same single crystal Al specimen. The comparison reveals distinctly different dependence of the characteristic pressure on corresponding characteristic length. The present results show the feasibility of micro-/nano-scale compression molding as a micro-/nano-fabrication technique, and offer an experimental test case for size-dependent plasticity theories.

  13. Tobacco mosaic virus: A biological building block for micro/nano...

    Office of Scientific and Technical Information (OSTI)

    Tobacco mosaic virus: A biological building block for micronanobio systems Citation Details In-Document Search Title: Tobacco mosaic virus: A biological building block for micro...

  14. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    Faghri A. , 1995, Heat Pipe Science and Technology, Taylor &L. L. , 2005, “Heat Pipes in Modern Heat Exchangers,”Investigations on Micro Heat Pipes,” International Journal

  15. Development and characterization of micro/nano structured surfaces for enhanced condensation

    E-Print Network [OSTI]

    Miljkovic, Nenad

    2013-01-01

    Micro/nanostructures have long been recognized to have potential for heat transfer enhancement in phase-change processes by achieving extreme wetting properties, which is of great importance in a wide range of applications ...

  16. Exploring the Limits of Boiling and Evaporative Heat Transfer Using Micro/Nano Structures

    E-Print Network [OSTI]

    Lu, Ming-Chang

    2010-01-01

    8) (2006) [9] A. Faghri, Heat pipe science and technology,investigations on micro heat pipes, Int J Energ Res, 31(6-investigation of a high flux heat pipe heat sink, J Electron

  17. Modeling and controlling topographical nonuniformity in thermoplastic micro- and nano-embossing

    E-Print Network [OSTI]

    Taylor, Hayden Kingsley

    2009-01-01

    The embossing of thermoplastic polymeric plates is valuable for manufacturing micro- and nanofluidic devices and diffractive optics. Meanwhile, the imprinting of sub-micrometer-thickness thermoplastic layers has emerged ...

  18. Approach for the 3D-alignment in micro-and nano-scale assembly processes

    E-Print Network [OSTI]

    Boyer, Edmond

    as known from the macro- and meso-scale. Although a lot of similarities exist for both regimes, micro to the f meso-scale p ly machine by human rt and the h her in positi owever, dep an be used outcome h

  19. "Stokes' Second Problem in High Frequency Limit. Application to Micro (Nano)- Resonators

    E-Print Network [OSTI]

    V. Yakhot; C. Colosqui

    2007-03-26

    Using kinetic equation in the relaxation approximation (RTA), we investigate a flow generated by an infinite plate oscillating with frequency $\\omega$. Geometrical simplicity of the problem allows a solution in the entire range of dimensionless frequency variation $0\\leq \\omega \\tau\\leq \\infty$, where $\\tau$ is a properly defined relaxation time. A transition from viscoelastic behavior of Newtonian fluid ($\\omega\\tau\\to 0$) to purely elastic dynamics in the limit $\\omega\\tau\\to \\infty$ is discovered. The relation of the derived solutions to microfluidics (high-frequency micro-resonators) is demonstrated on an example of a "plane oscillator .

  20. Pencil-like zinc oxide micro/nano-scale structures: Hydrothermal synthesis, optical and photocatalytic properties

    SciTech Connect (OSTI)

    Moulahi, A.; Sediri, F.

    2013-10-15

    Graphical abstract: - Highlights: • Zinc oxide micro/nanopencils have been synthesized hydrothermally. • Photocatalytic activity has been evaluated by the degradation of methylene blue under UV light irradiation. • ZnO nanopencils exhibit much higher photocatalytic activity than the commercial ZnO. - Abstract: Zinc oxide micro/nanopencils have been successfully synthesized by hydrothermal process using zinc acetate and diamines as structure-directing agents. The morphology, the structure, the crystallinity and the composition of the materials were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The optical properties of synthesized ZnO were investigated by UV–vis spectroscopy. The photocatalytic activity of the material has been evaluated by the degradation of methylene blue under UV irradiation. As a result, after the lapse of 150 min, around 82% bleaching was observed, with ZnO nanopencils yielding more photodegradation compared to that of commercial ZnO (61%)

  1. AOI [3] High-Temperature Nano-Derived Micro-H2 and - H2S Sensors

    SciTech Connect (OSTI)

    Perepezko, John; Lu-Steffes, Otto

    2014-08-31

    The emissions from coal-fired power plants remain a significant concern for air quality. This environmental challenge must be overcome by controlling the emission of sulfur dioxide (SO2) and hydrogen sulfide (H2S) throughout the entire coal combustion process. One of the processes which could specifically benefit from robust, low cost, and high temperature compatible gas sensors is the coal gasification process which converts coal and/or biomass into syngas. Hydrogen (H2), carbon monoxide (CO) and sulfur compounds make up 33%, 43% and 2% of syngas, respectively. Therefore, development of a high temperature (>500°C) chemical sensor for in-situ monitoring of H2, H2S and SO2 levels during coal gasification is strongly desired. The selective detection of SO2/H2S in the presence of H2, is a formidable task for a sensor designer. In order to ensure effective operation of these chemical sensors, the sensor system must inexpensively function within harsh temperature and chemical environment. Currently available sensing approaches, which are based on gas chromatography, electrochemistry, and IR-spectroscopy, do not satisfy the required cost and performance targets. This work focused on the development microsensors that can be applied to this application. In order to develop the high- temperature compatible microsensor, this work addressed various issues related to sensor stability, selectivity, and miniaturization. In the research project entitled “High-Temperature Nano-Derived Micro-H2 and -H2S Sensors”, the team worked to develop micro-scale, chemical sensors and sensor arrays composed of nano-derived, metal-oxide composite materials to detect gases like H2, SO2, and H2S within high-temperature environments (>500?C). The research was completed in collaboration with NexTech Materials, Ltd. (Lewis Center, Ohio). NexTech assisted in the testing of the sensors in syngas with contaminate levels of H2S. The idea of including nanomaterials as the sensing material within resistive-type chemical sensor platforms was to increase the sensitivity (as shown for room temperature applications). Unfortunately, nanomaterials are not stable at high temperatures due to sintering and coarsening processes that are driven by their high surface to volume ratio. Therefore, new hydrogen and sulfur selective nanomaterial systems with high selectivity and stability properties in the proposed harsh environment were investigated. Different nano-morphologies of zirconate, molybdate, and tungstate compounds were investigated. The fabrication of the microsensors consisted of the deposition of the selective nanomaterial systems over metal based interconnects on an inert substrate. This work utilized the chemi-resistive (resistive- type) microsensor architecture where the chemically and structurally stable, high temperature compatible electrodes were sputtered onto a ceramic substrate. The nanomaterial sensing systems were deposited over the electrodes using a lost mold method patterned by conventional optical lithography. The microsensor configuration with optimized nanomaterial system was tested and compared to a millimeter-size sensor e outcomes of this research will contribute to the economical application of sensor arrays for simultaneous sensing of H2, H2S, and SO2.

  2. Research Article Milli-free flow electrophoresis: I. Fast

    E-Print Network [OSTI]

    Krylov, Sergey

    a term of milli-free flow electrophoresis (mFFE) to describe mid-scale FFE with flow rates intermediate and rotational speeds of the drills, the depth of the electrode channels, the dimensions of the entrance and exit. produced a mid-scale FFE device with dimensions intermediate to macro-FFE and mFFE [8]. The mid

  3. Lubricant-infused micro/nano-structured surfaces with tunable dynamic omniphobicity at high temperatures

    SciTech Connect (OSTI)

    Daniel, Daniel; Max, Mankin N.; Belisle, Rebecca A.; Wong, Tak-Sing; Aizenberg, Joanna

    2013-06-12

    Omniphobic surfaces that can repel fluids at temperatures higher than 100 #2;°C are rare. Most stateof- the-art liquid-repellent materials are based on the lotus effect, where a thin air layer is maintained throughout micro/nanotextures leading to high mobility of liquids. However, such behavior eventually fails at elevated temperatures when the surface tension of test liquids decreases significantly. Here, we demonstrate a class of lubricant-infused structured surfaces that can maintain a robust omniphobic state even for low-surface-tension liquids at temperatures up to at least 200 °#2;C. We also demonstrate how liquid mobility on such surfaces can be tuned by a factor of 1000.

  4. Lubricant-infused micro/nano-structured surfaces with tunable dynamic omniphobicity at high temperatures

    SciTech Connect (OSTI)

    Daniel, D; Mankin, MN; Belisle, RA; Wong, TS; Aizenberg, J

    2013-06-10

    Omniphobic surfaces that can repel fluids at temperatures higher than 100 degrees C are rare. Most state-of-the-art liquid-repellent materials are based on the lotus effect, where a thin air layer is maintained throughout micro/nanotextures leading to high mobility of liquids. However, such behavior eventually fails at elevated temperatures when the surface tension of test liquids decreases significantly. Here, we demonstrate a class of lubricant-infused structured surfaces that can maintain a robust omniphobic state even for low-surface-tension liquids at temperatures up to at least 200 degrees C. We also demonstrate how liquid mobility on such surfaces can be tuned by a factor of 1000. (C) 2013 Author(s).

  5. Micro/nano-mechanical test system employing tensile test holder with push-to-pull transformer

    DOE Patents [OSTI]

    Oh, Yunje; Cyrankowski, Edward; Shan, Zhiwei; Asif, Syed Amanula Syed

    2013-05-07

    A micromachined or microelectromechanical system (MEMS) based push-to-pull mechanical transformer for tensile testing of micro-to-nanometer scale material samples including a first structure and a second structure. The second structure is coupled to the first structure by at least one flexible element that enables the second structure to be moveable relative to the first structure, wherein the second structure is disposed relative to the first structure so as to form a pulling gap between the first and second structures such that when an external pushing force is applied to and pushes the second structure in a tensile extension direction a width of the pulling gap increases so as to apply a tensile force to a test sample mounted across the pulling gap between a first sample mounting area on the first structure and a second sample mounting area on the second structure.

  6. Micro/nano-mechanical test system employing tensile test holder with push-to-pull transformer

    DOE Patents [OSTI]

    Oh, Yunje; Cyrankowski, Edward; Shan, Zhiwei; Syed Asif, Syed Amanula

    2014-07-29

    A micromachined or microelectromechanical system (MEMS) based push-to-pull mechanical transformer for tensile testing of micro-to-nanometer scale material samples including a first structure and a second structure. The second structure is coupled to the first structure by at least one flexible element that enables the second structure to be moveable relative to the first structure, wherein the second structure is disposed relative to the first structure so as to form a pulling gap between the first and second structures such that when an external pushing force is applied to and pushes the second structure in a tensile extension direction a width of the pulling gap increases so as to apply a tensile force to a test sample mounted across the pulling gap between a first sample mounting area on the first structure and a second sample mounting area on the second structure.

  7. Surfactant-Free Synthesis of Bi?Te?-Te Micro-Nano Heterostructure with Enhanced Thermoelectric Figure of Merit

    SciTech Connect (OSTI)

    Zhang, Yichi; Wang, Heng; Kraemer, Stephan; Shi, Yifeng; Zhang, Fan; Snedaker, Matt; Ding, Kunlun; Moskovits, Martin; Snyder, G. Jeffrey; Stucky, Galen D.

    2011-01-01

    An ideal thermoelectric material would be a semiconductor with high electrical conductivity and relatively low thermal conductivity: an “electron crystal, phonon glass”. Introducing nanoscale heterostructures into the bulk TE matrix is one way of achieving this intuitively anomalous electron/phonon transport behavior. The heterostructured interfaces are expected to play a significant role in phonon scattering to reduce thermal conductivity and in the energy-dependent scattering of electrical carriers to improve the Seebeck coefficient. A nanoparticle building block assembly approach is plausible to fabricate three-dimensional heterostructured materials on a bulk commercial scale. However, a key problem in applying this strategy is the possible negative impact on TE performance of organic residue from the nanoparticle capping ligands. Herein, we report a wet chemical, surfactant-free, low-temperature, and easily up-scalable strategy for the synthesis of nanoscale heterophase Bi?Te?-Te via a galvanic replacement reaction. The micro-nano heterostructured material is fabricated bottom-up, by mixing the heterophase with commercial Bi?Te?. This unique structure shows an enhanced zT value of ~0.4 at room temperature. This heterostructure has one of the highest figures of merit among bismuth telluride systems yet achieved by a wet chemical bottom-up assembly. In addition, it shows a 40% enhancement of the figure of merit over our lab-made material without nanoscale heterostructures. This enhancement is mainly due to the decrease in the thermal conductivity while maintaining the power factor. Overall, this cost-efficient and room-temperature synthesis methodology provides the potential for further improvement and large-scale thermoelectric applications.

  8. Bubble nucleation on nano- to micro-size cavities and posts: An experimental validation of classical theory

    E-Print Network [OSTI]

    Phillips, B.

    Recently reported data suggest that bubble nucleation on surfaces with nano-sized features (cavities and posts) may occur close to the thermodynamic saturation temperature. However, according to the traditional theory of ...

  9. Production of ultra-thin nano-scaled graphene platelets from meso-carbon micro-beads

    DOE Patents [OSTI]

    Zhamu, Aruna; Guo, Jiusheng; Jang, Bor Z

    2014-11-11

    A method of producing nano-scaled graphene platelets (NGPs) having an average thickness no greater than 50 nm, typically less than 2 nm, and, in many cases, no greater than 1 nm. The method comprises (a) intercalating a supply of meso-carbon microbeads (MCMBs) to produce intercalated MCMBs; and (b) exfoliating the intercalated MCMBs at a temperature and a pressure for a sufficient period of time to produce the desired NGPs. Optionally, the exfoliated product may be subjected to a mechanical shearing treatment, such as air milling, air jet milling, ball milling, pressurized fluid milling, rotating-blade grinding, or ultrasonicating. The NGPs are excellent reinforcement fillers for a range of matrix materials to produce nanocomposites. Nano-scaled graphene platelets are much lower-cost alternatives to carbon nano-tubes or carbon nano-fibers.

  10. Micro-scale Processing of Silk Protein

    E-Print Network [OSTI]

    Breslauer, David Nate

    2010-01-01

    W. Lo, et al. (2006). "Replica molding of high-aspect-ratioand high aspect ratio molding of nano- and micro-structures.Ratio Silk Nano- and Micro-molding .74 6.1

  11. Nano Databases Nano Business

    E-Print Network [OSTI]

    Xie, Xiaoliang Sunney

    Home News Nano Databases Nano Business Nano Jobs Resources Introduc on to Nanotechnology Open menu's lab. A team of interna onal researchers, led by Lieber, the Mark Hyman, Jr. Professor of Chemistry

  12. The Seventh International Conference on Quantum, Nano and Micro Technologies ISBN: 978-1-61208-303-2

    E-Print Network [OSTI]

    Privman, Vladimir

    , with hulls that are composed of carbon fibers, a light weight high strength material. Electronic devices. As an example, carbon nano-tubes have been created that are 250 times stronger than steel, 10 times lighter, and transparent. Similar advances are occurring in glass, plastics and concrete. Spacecraft are being launched

  13. High Aspect Ratio Polymer Micro/Nano-Structure Manufacturing using Nanoembossing, Nanomolding and Directed Self-Assembly

    E-Print Network [OSTI]

    Sitti, Metin

    . The second one uses a self-organized polycarbonate nano-pore membrane as the molding template. PDMS is molded-assembly. In this technique, a thin liquid polymer film is coated on a flat conductive substrate, and a closely spaced another

  14. Co-localised Raman and force spectroscopy reveal the roles of hydrogen bonds and ?-? interactions in defining the mechanical properties of diphenylalanine nano- and micro-tubes

    SciTech Connect (OSTI)

    Sinjab, Faris; Bondakov, Georgi; Notingher, Ioan, E-mail: ioan.notingher@nottingham.ac.uk [School of Physics and Astronomy, University of Nottingham, Nottingham (United Kingdom)

    2014-06-23

    An integrated atomic force and polarized Raman microscope were used to measure the elastic properties of individual diphenylalanine (FF) nano- and micro-tubes and to obtain quantitative information regarding the inter-molecular interactions that define their mechanical properties. For individual tubes, co-localised force spectroscopy and Raman spectroscopy measurements allowed the calculation of the Young's and shear moduli (25?±?5?GPa and 0.28?±?0.05?GPa, respectively) and the contribution of hydrogen bonding network to the Young's modulus (?17.6?GPa). The ?-? interactions between the phenyl rings, dominated by T-type arrangements, were estimated based on previously published X-ray data to only 0.20?GPa. These results provide experimental evidence obtained from individual FF tubes that the network of H-bonds dominates the elastic properties of the FF tubes.

  15. Solvothermal synthesis and tunable luminescence of Tb{sup 3+}, Eu{sup 3+} codoped YF{sub 3} nano- and micro-crystals with uniform morphologies

    SciTech Connect (OSTI)

    Tian, Yue [Department of Physics, Dalian Maritime University, Dalian, Liaoning 116026 (China) [Department of Physics, Dalian Maritime University, Dalian, Liaoning 116026 (China); College of Life Science, Dalian Nationalities University, Dalian, Liaoning 116600 (China); Chen, Baojiu, E-mail: chenmbj@sohu.com [Department of Physics, Dalian Maritime University, Dalian, Liaoning 116026 (China)] [Department of Physics, Dalian Maritime University, Dalian, Liaoning 116026 (China); Li, Xiangping; Zhang, Jinsu; Tian, Bining; Sun, Jiashi; Cheng, Lihong; Zhong, Haiyang; Zhong, Hua [Department of Physics, Dalian Maritime University, Dalian, Liaoning 116026 (China)] [Department of Physics, Dalian Maritime University, Dalian, Liaoning 116026 (China); Hua, Ruinian, E-mail: rnhua@dlnu.edu.cn [College of Life Science, Dalian Nationalities University, Dalian, Liaoning 116600 (China)] [College of Life Science, Dalian Nationalities University, Dalian, Liaoning 116600 (China)

    2012-12-15

    Tb{sup 3+}, Eu{sup 3+} codoped YF{sub 3} nano- and micro-crystals with the morphologies of ellipsoid-like nanoplate, spindle, sandwich-structural rhombus and nanoaggregate were synthesized through a solvothermal method. The morphologies of the prepared products can be tailored by controlling the volume ratio of ethylene glycol (EG) to H{sub 2}O, solvent type or the reaction time. A possible formation mechanism of the sandwich-structural rhombus like YF{sub 3} phosphor was proposed. The emitting colors of YF{sub 3}:Tb{sup 3+},Eu{sup 3+} phosphors can be easily tuned from yellowish green, yellow to orange by increasing Eu{sup 3+} concentration. The energy transfer from Tb{sup 3+} to Eu{sup 3+} in YF{sub 3} phosphors was studied. It was found that the interaction type between Tb{sup 3+} and Eu{sup 3+} is electric dipole-dipole interaction. - Graphical abstract: Sandwich-structural rhombus like YF{sub 3}:Tb{sup 3+}, Eu{sup 3+} phosphors were synthesized through a solvothermal process. The formation mechanism of the sandwich-structural rhombus like YF{sub 3}:Tb{sup 3+}, Eu{sup 3+} phosphors was studied. Highlights: Black-Right-Pointing-Pointer YF{sub 3} nano- and micro-crystals were synthesized through solvothermal route. Black-Right-Pointing-Pointer A formation mechanism of the sandwich-structural rhombus like YF{sub 3} was proposed. Black-Right-Pointing-Pointer The emitting colors of YF{sub 3}:Tb{sup 3+},Eu{sup 3+} phosphors can be tuned. Black-Right-Pointing-Pointer Energy transfer from Tb{sup 3+} to Eu{sup 3+} is confirmed as electric dipole-dipole interaction.

  16. In situ derivation of sulfur activated TiO{sub 2} nano porous layers through pulse-micro arc oxidation technology

    SciTech Connect (OSTI)

    Bayati, M.R.; Golestani-Fard, F.; Center of Excellence for Advanced Materials, Iran University of Science and Technology, P.O. Box 16845-195, Tehran ; Moshfegh, A.Z.; Institute for Nanoscience and Nanotechnology, Sharif University of Technology, P.O. Box 14588-89694, Tehran ; Molaei, Roya

    2011-10-15

    Highlights: {yields} S-TiO{sub 2} layers were grown by MAO technique under pulse current for the first time. {yields} Effect of growth parameters on chemical composition, topography, and morphology of the layers was studied. {yields} A correlation between photocatalytic performance and growth conditions was proposed. -- Abstract: Micro arc oxidation technique, as a facile and efficient process, was employed to grow sulfur doped titania porous layers. This research sheds light on the photocatalytic performance of the micro arc oxidized S-TiO{sub 2} nano-porous layers fabricated under pulse current. Morphological and topographical studies, performed by SEM and AFM techniques, revealed that increasing the frequency and/or decreasing the duty cycle resulted in formation of finer pores and smoother surfaces. XRD and XPS results showed that the layers consisted of anatase and rutile phases whose fraction was observed to change depending on the synthesis conditions. The highest anatase relative content was obtained at the frequency of 500 Hz and the duty cycle of 5%. Furthermore, photocatalytic activity of the layers was examined by measuring the decomposition rate of methylene blue under both ultraviolet and visible photo irradiations. Maximum photodegradation reaction rate constants over the pulse-grown S-TiO{sub 2} layers were respectively measured as 0.0202 and 0.0110 min{sup -1} for ultraviolet and visible irradiations.

  17. Development and Integration of Single-Asperity Nanotribology Experiments & Nanoscale Interface Finite Element Modeling for Prediction and Control of Friction and Damage in Micro- and Nano-mechnical Systems

    SciTech Connect (OSTI)

    R.W. Carpick; M.E. Plesha

    2007-03-03

    This report describes the accomplishments of the DOE BES grant entitled "Development and Integration of Single-Asperity Nanotribology Experiments & Nanoscale Interface Finite Element Modeling for Prediction and Control of Friction and Damage in Micro- and Nano-mechnical Systems". Key results are: the determination of nanoscale frictional properties of MEMS surfaces, self-assembled monolayers, and novel carbon-based films, as well as the development of models to describe this behavior.

  18. Nanoscale Light Focusing and Imaging with Nano-Optical Devices 

    E-Print Network [OSTI]

    Meenashi Sundaram, Vijay

    2014-09-23

    Energy transport analysis of micro/nano optics as well as their optimization to achieve high-throughput deep nanoscale patterning and microscopy is the goal of this study. To understand the energy transport in nano-optical ...

  19. CHSLT -Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering Department/NEST -NanoEngineering, Science, and Technology

    E-Print Network [OSTI]

    Furlong, Cosme

    CHSLT - Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering November 2014 WORCESTER POLYTECHNIC INSTITUTE MECHANICAL ENGINEERING DEPARTMENT Optical Metrology and NDT interferometry #12;CHSLT - Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering

  20. Tool fabrication system for micro/nano milling—function analysis and design of a six-axis Wire EDM machine

    E-Print Network [OSTI]

    Cheng, X.; Wang, Z. G.; Kobayashi, S.; Nakamoto, K.; Yamazaki, K.

    2010-01-01

    nano milling—function analysis and design of a six-axis Wirepaper, a function analysis and design of a six-axis Wireon the function analysis and design of a six-axis WEDM

  1. CHSLT -Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering Department/NEST -NanoEngineering, Science, and Technology

    E-Print Network [OSTI]

    Furlong, Cosme

    CHSLT - Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering WORCESTER POLYTECHNIC INSTITUTE MECHANICAL ENGINEERING DEPARTMENT Optical Metrology and NDT ME-593L, B'2014 #12;CHSLT - Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering

  2. Mildred (Millie) Dresselhaus and Her Impacts on Science and Women in

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework uses concrete7 Assessment ofLana7, atScience Mildred (Millie)

  3. A large-scale magnetic shield with 10^6 damping at milli-Hertz frequencies

    E-Print Network [OSTI]

    Altarev, I; Beck, D H; Chupp, T; Fierlinger, K; Fierlinger, P; Kuchler, F; Lins, T; Marino, M G; Niessen, B; Petzoldt, G; Singh, J T; Schläpfer, U; Schnabel, A; Stoepler, R; Stuiber, S; Strum, M; Taubenheim, B; Voigt, J

    2015-01-01

    A magnetically shielded environment with a damping factor larger than one million at the milli-Hertz frequency regime and an extremely low field and gradient over an extended volume is presented. This extraordinary shielding perfomance is to our knowledge unprecedented and represents an improvement of the state of the art in damping the difficult regime of very low-frequency distortions by more than an order of magnitude. Thus, a new generation of high precision measurements in fundamental physics and metrology is enabled with this technology, particularly suitable to find traces of new physics far beyond the reach of accelerator based physics. The technical realization of the shield with its improvements in design is discussed.

  4. Latent heat fluxes through nano-engineered porous materials

    E-Print Network [OSTI]

    Traum, Matthew J. (Matthew Jason), 1977-

    2007-01-01

    Micro- and nano-scale truss architectures provide mechanical strength, light weight, and breatheability in polymer barriers. Liquid evaporation and transport of resulting vapor through truss voids (pores) cools surfaces ...

  5. ISSCC 2006 / SESSION 16 / MEMS AND SENSORS / 16.1 16.1 A 4.5mW Closed-Loop Micro-Gravity

    E-Print Network [OSTI]

    Ayazi, Farrokh

    .01·cm) 120µm-thick silicon-on-insulator (SOI) substrate with extra seismic mass and small capacitive seismic mass on the backside of the sensor. In contrast to previously reported micro- accelerometers. Since the seismic mass is very large (10's of milli-gram) and the accelerom- eter is very compliant

  6. Synthesis of Micro/Nano Crystalline Ceramics

    SciTech Connect (OSTI)

    Mathew, Philip; Isac, Jayakumari [Centre for Condensed Matter, Department of Physics, CMS College, Kottayam, Kerala, India Department of Physics, CMS College, Kottayam, Kerala (India); Isac, Sheelakumari [Department of Chemistry, UC College, Aluva, Kerala (India); Abraham, Rosalin [Department of Physics, St. Dominics College, Kanjirappally, Kottayam, Kerala (India)

    2008-04-23

    As a matter of fact almost every industrial production line, office and home is dependant on ceramic materials. Newly designed devices incorporate ceramic materials because of their useful chemical, electrical, mechanical, thermal and structural properties. The effectiveness of a large system depends critically on its ceramic components. That is ceramics are important, first because they comprise a large basic industry and second because their properties are essential for many applications. Ceramics are more stable than metals both in chemical and thermal environments. In this work the authors describes a method for the preparation of PBT ceramics material from lead oxide (PbO), barium carbonate and titanium oxide based on pre-calcinations of oxides. The results were analyzed by X-ray Diffraction (XRD), Infrared Spectroscopy (IR) and TGA. XRD and SEM studies revealed that its particle size is in nanometer range. Dielectric studies were conducted at a frequency range of 100 KHz to 13 MHz. Mechanical properties were calculated.

  7. Nano Facts

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatialDevelopment of09Sponsor GuidelinesGlennNancy M.Nano Facts

  8. Modeling and control of a hot micro-embossing machine

    E-Print Network [OSTI]

    Shoji, Grant T. (Grant Tatsuo)

    2006-01-01

    As the market for polymer micro- and nano-devices expands there is an ever-present need for a manufacturing standard to mass produce these parts. A number of techniques for fabricating these devices are soft lithography, ...

  9. Design of Chemotaxis Devices Using Nano-Motors

    E-Print Network [OSTI]

    Phil Attard

    2012-09-07

    Several designs for micro-devices for chemotaxis based on nano-motors are proposed. The nano- or micro-motors are the conventional Janus rods or spheres that are powered by the catalytic reaction of fuels such as hydrogen peroxide. It is shown how these can be linked to make a device that can follow a concentration gradient of the fuel. The feasibility of assembling the devices using micromanipulation or metallic deposition is discussed. A possible design principle is suggested for a device that follows the concentration gradient of an analyte other than the fuel.

  10. Design of Chemotaxis Devices Using Nano-Motors

    E-Print Network [OSTI]

    Attard, Phil

    2012-01-01

    Several designs for micro-devices for chemotaxis based on nano-motors are proposed. The nano- or micro-motors are the conventional Janus rods or spheres that are powered by the catalytic reaction of fuels such as hydrogen peroxide. It is shown how these can be linked to make a device that can follow a concentration gradient of the fuel. The feasibility of assembling the devices using micromanipulation or metallic deposition is discussed. A possible design principle is suggested for a device that follows the concentration gradient of an analyte other than the fuel.

  11. SPECIAL ISSUE -EDITORIAL Micro and nanotechnology for biological and biomedical

    E-Print Network [OSTI]

    Espinosa, Horacio D.

    SPECIAL ISSUE - EDITORIAL Micro and nanotechnology for biological and biomedical applications Chwee of micro and nano- technological tools, devices and techniques for both bio- logical and biomedical of the important outcomes will eventually see actual biomedical applications in the not too distant future

  12. Probing the adhesion of submicron thin films fabricated on a polymer substrate via nano-transfer printing

    E-Print Network [OSTI]

    Li, Teng

    Probing the adhesion of submicron thin films fabricated on a polymer substrate via nano- transfer.1088/0960-1317/22/9/095002 Probing the adhesion of submicron thin films fabricated on a polymer substrate via nano-transfer printing/095002 Abstract Determining the interfacial adhesion of ultrathin functional films in micro

  13. In situ growth of ZrO{sub 2}–Al{sub 2}O{sub 3} nano-crystalline ceramic coatings via micro arc oxidation of aluminum substrates

    SciTech Connect (OSTI)

    Shoaei-Rad, V.; Bayati, M.R.; Zargar, H.R.; Javadpour, J.; Golestani-Fard, F.; Center of Excellence for Advanced Materials, Iran University of Science and Technology, P.O. Box 16845-195, Tehran

    2012-06-15

    Highlights: ? ZrO{sub 2}–Al{sub 2}O{sub 3} layers were fabricated by MAO process. ? A formation mechanism was also proposed. ? Effect of voltage and electrolyte composition on layers properties was studied. -- Abstract: Micro arc oxidation technique was employed to grow zirconia–alumina porous layers. Considering XPS, XRD, and EDX results, the layers mainly consisted of ?-Al{sub 2}O{sub 3}, ?-Al{sub 2}O{sub 3}, monoclinic ZrO{sub 2}, tetragonal ZrO{sub 2}. Fractions of these phases were observed to change based on the fabrication conditions. Zirconia phases formed not only on the surface, but also in the layers depth. Increasing the voltage as well as utilizing thicker electrolytes resulted in higher zirconium concentration. The average crystalline size of the ZrO{sub 2} and the Al{sub 2}O{sub 3} phases was determined as about 57 and 75 nm. AFM studies revealed that the surface roughness increased with voltage and electrolyte concentration. Morphological evaluations, performed by SEM, showed that the microstructure of the layers strongly depended on the synthesis conditions. The layers revealed a porous structure with a pores size of 40–300 nm. Microcracks were observed to appear when the electrolyte concentration and the applied voltage increased. Finally, a formation mechanism was put forward with emphasis on the chemical and the electrochemical foundations.

  14. Nano-composite materials

    DOE Patents [OSTI]

    Lee, Se-Hee; Tracy, C. Edwin; Pitts, J. Roland

    2010-05-25

    Nano-composite materials are disclosed. An exemplary method of producing a nano-composite material may comprise co-sputtering a transition metal and a refractory metal in a reactive atmosphere. The method may also comprise co-depositing a transition metal and a refractory metal composite structure on a substrate. The method may further comprise thermally annealing the deposited transition metal and refractory metal composite structure in a reactive atmosphere.

  15. Micro helical polymeric structures produced by variable voltage direct electrospinning

    E-Print Network [OSTI]

    S. P. Shariatpanahi; A. Iraji zad; I. Abdollahzadeh; R. Shirsavar; D. Bonn; R. Ejtehadi

    2011-09-12

    Direct near field electrospinning is used to produce very long helical polystyrene microfibers in water. The pitch length of helices can be controlled by changing the applied voltage, allowing to produce both micro springs and microchannels. Using a novel high frequency variable voltage electrospinning method we found the helix formation speed and compared the experimental buckling frequency to theoretical expressions for viscous and elastic buckling. Finally we showed that the newmethod can be used to produce new periodic micro and nano structures.

  16. Nano Research Facility Lab Safety Manual Nano Research Facility

    E-Print Network [OSTI]

    Subramanian, Venkat

    1 Nano Research Facility Lab Safety Manual Nano Research Facility: Weining Wang Office: Brauer---chemical, biological, or radiological. Notify the lab manager, Dr. Yujie Xiong at 5-4530. Eye Contact: Promptly flush

  17. http://www.nanowerk.com/news/newsid=6934.php Ads by Google MEMS Design Tata Nano Nano Devices iTrip Nano Nano Optic

    E-Print Network [OSTI]

    Sridhar, Srinivas

    http://www.nanowerk.com/news/newsid=6934.php Ads by Google MEMS Design Tata Nano Nano Devices i generation of combined optical and electronic platforms essential for future computers," added Sridhar-2802 or via email at j.eriksen@neu.edu. Ads by Google MEMS Design Tata Nano Nano Devices iTrip Nano Nano Optic

  18. Direct Nano-Patterning With Nano-Optic Devices 

    E-Print Network [OSTI]

    Meenashi Sundaram, Vijay

    2011-08-08

    In this study nano-patterning was carried out using two different nano-optic devices namely- the NSOM and Fresnel zone plate. In the first study, NSOM was used to generate nano-patterns on selected semiconducting (Si and Ge) and metallic (Cr, Cu...

  19. Micro Hydro 1 Micro Hydro Power.

    E-Print Network [OSTI]

    Micro Hydro 1 Micro Hydro Power. Andrew Cannard, Andrew Gonzales, Candace Kaiser. Using recycled materials we will be building a Mini Micro hydro system. Using a rear bicycle tire for the turbine we and implementation of permanent micro hydro systems on campus. Renewable energy is a key aspect of any plan to make

  20. Grain Boundary (GB) Studies in Nano- and Micro- Crystalline Materials

    E-Print Network [OSTI]

    Tanju, Mst Sohanazaman

    2011-01-01

    boundaries in silicon? Materials research society, Vol.122,bicrystal? Journal of Materials Science, 40(2005)3137- 5.in ZnO? Journal of Materials Science, 40(2005)3067-3074. 6.

  1. New paradigm to design micro and nano-patterned membranes

    E-Print Network [OSTI]

    Eggenspieler, Damien

    2010-01-01

    Access to drinking water is a growing issue and one of the key challenging of the twenty first century. The rapid depletion of current supply sources (aquifers, rivers, lake...) urges to find solutions, especially cost and ...

  2. Method to fabricate micro and nano diamond devices

    DOE Patents [OSTI]

    Morales, Alfredo M; Anderson, Richard J; Yang, Nancy Y. C.; Skinner, Jack L; Rye, Michael J

    2014-10-07

    A method including forming a diamond material on the surface of a substrate; forming a first contact and a separate second contact; and patterning the diamond material to form a nanowire between the first contact and the second contact. An apparatus including a first contact and a separate second contact on a substrate; and a nanowire including a single crystalline or polycrystalline diamond material on the substrate and connected to each of the first contact and the second contact.

  3. Micro- & Nano-Technologies Enabling More Compact, Lightweight...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Advanced thermoelectric energy recovery and cooling system weight and volume improvements with low-cost microtechnology heat and mass transfer devices are presented hendricks.pdf...

  4. Future nano- and micro-systems using nanobonding technologies

    SciTech Connect (OSTI)

    Howlader, Matiar M. R. E-mail: jamal@mcmaster.ca; Deen, M. Jamal E-mail: jamal@mcmaster.ca

    2014-03-31

    In this paper, some of the recent achievements in surface-activation-based nanobonding technology are described. This bonding technology allows for the combination of electronic, photonic, fluidic and mechanical functionalities into small form-factor systems for emerging applications in health diagnostics and screening, for example. These nanobonding technologies provide void-free, strong, and nanoscale bonding at room temperature or at low temperatures (<200 °C), and they do not require chemicals, adhesives, or high external pressure. The interfaces of the nanobonded materials in ultra-high vacuum and in air correspond to the covalent bonds, and hydrogen and hydroxyl bonds, respectively, which gives rise to excellent bonding properties. Further, these nanobonding technologies are well-suited for the development of low-cost, high-performance miniaturized systems such as biophotonic imaging systems.

  5. Micro- and nano- scale experimental approach to surface engineer metals 

    E-Print Network [OSTI]

    Asthana, Pranay

    2007-09-17

    , and surface modification for tribological augmentation of surfaces. An effort has been made to study these aspects through gaining insights by fundamental studies leading to specific practical applications in railroads. The basic idea was to surface engineer...

  6. Grain Boundary (GB) Studies in Nano- and Micro- Crystalline Materials

    E-Print Network [OSTI]

    Tanju, Mst Sohanazaman

    2011-01-01

    in 2 – 8 % yttria-stabilized zirconia polycrystals? Actain yttria-stabilized cubic zirconia? Philosophical Magazine,grain size, for example zirconia is fully opaque when grain

  7. Micro- & Nano-Technologies Enabling More Compact, Lightweight

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURING OFFICESpecial ReportProposal toDepartment ofEnergy Michigan

  8. Electrospray neutralization process and apparatus for generation of nano-aerosol and nano-structured materials

    DOE Patents [OSTI]

    Bailey, Charles L. (Cross Junction, VA); Morozov, Victor (Manassas, VA); Vsevolodov, Nikolai N. (Kensington, MD)

    2010-08-17

    The claimed invention describes methods and apparatuses for manufacturing nano-aerosols and nano-structured materials based on the neutralization of charged electrosprayed products with oppositely charged electrosprayed products. Electrosprayed products include molecular ions, nano-clusters and nano-fibers. Nano-aerosols can be generated when neutralization occurs in the gas phase. Neutralization of electrospan nano-fibers with molecular ions and charged nano-clusters may result in the formation of fibrous aerosols or free nano-mats. Nano-mats can also be produced on a suitable substrate, forming efficient nano-filters.

  9. Bio2Nano

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura|Bilayer Graphene Gets aVehicles and FuelsBio2Nano

  10. EE 337 Engineering nano-systems EE 337 Engineering micro and nano-systems

    E-Print Network [OSTI]

    Levi, Anthony F. J.

    capability. Homework includes elements of design, documentation, and preparation of presentations. The course ­ Content supported by Chongwu Zhou a. A carbon nanotube can be viewed as a single layer of graphene rolled

  11. Nuclear waste repository research at the micro- to nanoscale

    SciTech Connect (OSTI)

    Schaefer, T.; Denecke, M. A.

    2010-04-06

    Micro- and nano-focused synchrotron radiation techniques to investigate determinant processes in contaminant transport in geological media are becoming especially an increasingly used tool in nuclear waste disposal research. There are a number of reasons for this but primarily they are driven by the need to characterize actinide speciation localized in components of heterogeneous natural systems. We summarize some of the recent research conducted by researchers of the Institute of Nuclear Waste Disposal (INE) at the Karlsruhe Institute of Technology using micro- and nano-focused X-ray beams for characterization of colloids and their interaction with minerals and of elemental and phase distributions in potential repository host rocks and actinide speciation in a repository natural analogues sample. Such investigations are prerequisite to ensuring reliable assessment of the long term radiological safety for proposed nuclear waste disposal sites.

  12. The effect of mass loading on spurious modes in micro-resonators

    E-Print Network [OSTI]

    Charmet, Jérôme; Daly, Ronan; Thiruvenkatanathan, Pradyumna; Seshia, Ashwin A.

    2015-07-23

    the development of a variety of micro-electro- mechanical-system (MEMS) sensors. Among these, micro/nano-resonators have been extensively researched as gravimetric sensors for biosensing [1–8], environmental and industrial monitoring [9, 10], studying the evapora... sensors. In this letter we specifically examine the shift in resonant frequency of spurious modes towards the mode of interest during mass loading. This can result in modal interaction that degrades the response of the sensor. However, by understanding...

  13. Nano-optomechanical transducer

    DOE Patents [OSTI]

    Rakich, Peter T; El-Kady, Ihab F; Olsson, Roy H; Su, Mehmet Fatih; Reinke, Charles; Camacho, Ryan; Wang, Zheng; Davids, Paul

    2013-12-03

    A nano-optomechanical transducer provides ultrabroadband coherent optomechanical transduction based on Mach-wave emission that uses enhanced photon-phonon coupling efficiencies by low impedance effective phononic medium, both electrostriction and radiation pressure to boost and tailor optomechanical forces, and highly dispersive electromagnetic modes that amplify both electrostriction and radiation pressure. The optomechanical transducer provides a large operating bandwidth and high efficiency while simultaneously having a small size and minimal power consumption, enabling a host of transformative phonon and signal processing capabilities. These capabilities include optomechanical transduction via pulsed phonon emission and up-conversion, broadband stimulated phonon emission and amplification, picosecond pulsed phonon lasers, broadband phononic modulators, and ultrahigh bandwidth true time delay and signal processing technologies.

  14. Study of nano imprinting using soft lithography on Krafty glue and PVDF polymer thin films

    SciTech Connect (OSTI)

    Sankar, M. S. Ravi, E-mail: rameshg.phy@pondiuni.edu; Gangineni, Ramesh Babu, E-mail: rameshg.phy@pondiuni.edu [Department of Physics, Pondicherry University, R. V. Nagar, Kalapet, Puducherry - 605014 (India)

    2014-04-24

    The present work reveals soft lithography strategy based on self assembly and replica molding for carrying out micro and nanofabrication. It provides a convenient, effective and very low cost method for the formation and manufacturing of micro and nano structures. Al-layer of compact disc (sony CD-R) used as a stamp with patterned relief structures to generate patterns and structures with pattern size of 100nm height, 1.7 ?m wide. In literature, PDMS (Polydimethylsiloxane) solution is widely used to get negative copy of the Al-layer. In this work, we have used inexpensive white glue (Polyvinylacetate + water), 15gm (?5) and PVDF (Polyvinylidene difluoride) spin coated films and successfully transferred the nano patterns of Al layer on to white glue and PVDF films.

  15. Preparation, characterization, and photocatalytic studies on anatase nano-TiO{sub 2} at internal air lift circulating photocatalytic reactor

    SciTech Connect (OSTI)

    Xu, Hang, E-mail: xhinbj@126.com; Li, Mei; Jun, Zhang

    2013-09-01

    Graphical abstract: The micro morphological structure of the nano-TiO{sub 2} particles was also observed with TEM, as shown in figure. The TEM images clearly exhibited the homogeneous microstructure of particles with a size of around 10–15 nm. - Highlights: • Nano-TiO{sub 2} was prepared by complex techniques of sol–gel, micro-emulsion and solvent thermal. • The size of TiO{sub 2} was nano level and uniformity. • Nano-TiO{sub 2} exhibited high photo-catalytic activity at internal air lift circulating reactor. • The best nano-TiO{sub 2} dosage was obtained. - Abstract: Anatase nano-titania (TiO{sub 2}) powder was prepared by using a sol–gel process mediated in reverse microemulsion combined with a solvent thermal technique. The structures of the obtained TiO{sub 2} were characterized by TG-DSC, XRD, TEM. The photocatalytic decomposition of methylene blue (MB) on nano-TiO{sub 2} was studied by using an internal air lift circulating photocatalytic reactor. The results show that the anatase structure appears in the calcination temperature range of 400–510 °C, while the transformation of anatase into rutile takes place above 510 °C. The homogeneous microstructure of nano-TiO{sub 2} particles was obtained with a size of around 10–15 nm. In the photocatalytic performance, degradation process follows pseudo first order kinetics with different dosages of photocatalyst and initial MB concentrations and optimal TiO{sub 2} dosage is 0.1 g/L with neutral medium.

  16. Preserving Diesel Exhaust Ultrafine (Nano-) Particulate Structure...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Particulate Structure in Genotoxicity Studies to Support Engineering Development of Emission Controls Preserving Diesel Exhaust Ultrafine (Nano-) Particulate Structure in...

  17. MicroSight Optics

    ScienceCinema (OSTI)

    None

    2013-05-28

    MicroSight is an innovative gunsight technology that allows a marksman's eye to focus on both the front gunsight and the intended target. The MicroSight improves both firearm safety and performance by imaging two objects at different focal distances. The MicroSight was developed at Idaho National Laboratory, and has been licensed by Apollo Optical Systems. You can learn more about INL's research programs at http://www.facebook.com/idahonationallaboratory.

  18. Micro Actuators Electrostatic actuator

    E-Print Network [OSTI]

    Leu, Tzong-Shyng "Jeremy"

    is superior to the alloy CuZnAl. ·Most of SMA materials used in micro devices are TiNi (Nitinol). (IV) Work

  19. Design, Analysis and Development of Micro Gas Turbine for propulsion of Micro UAVs Micro gas turbines or simply micro turbines are very promising technology for propelling micro

    E-Print Network [OSTI]

    Sun, Yu

    Design, Analysis and Development of Micro Gas Turbine for propulsion of Micro UAVs Micro gas turbines or simply micro turbines are very promising technology for propelling micro unmanned aerial vehicles. These micro turbines vary in size and power. They can be hand held producing a fraction

  20. MicroBooNE

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    source of neutrinos for MicroBooNE is BNB; however, the NuMI beam will provide higher electron neutrino and antineutrino event rates and a unique opportunity to study these events....

  1. Artificial ciliary bundles with nano fiber tip links

    E-Print Network [OSTI]

    Asadnia, Mohsen; Miao, Jianmin; Triantafyllou, Michael

    2015-01-01

    Mechanosensory ciliary bundles in fishes are the inspiration for carefully engineered artificial flow sensors. We report the development of a new class of ultrasensitive MEMS flow sensors that mimic the intricate morphology of the ciliary bundles, including the stereocilia, tip links, and the cupula, and thereby achieve threshold detection limits that match the biological example. An artificial ciliary bundle is achieved by fabricating closely-spaced arrays of polymer micro-pillars with gradiating heights. Tip links that form the fundamental sensing elements are realized through electrospinning aligned PVDF piezoelectric nano-fibers that link the distal tips of the polymer cilia. An optimized synthesis of hyaluronic acid-methacrylic anhydride hydrogel that results in properties close to the biological cupula, together with drop-casting method are used to form the artificial cupula that encapsulates the ciliary bundle. In testing, fluid drag force causes the ciliary bundle to slide, stretching the flexible nan...

  2. Design Optimization of Radionuclide Nano-Scale Batteries

    SciTech Connect (OSTI)

    Schoenfeld, D.W.; Tulenko, J.S.; Wang, J.; Smith, B.

    2004-10-06

    Radioisotopes have been used for power sources in heart pacemakers and space applications dating back to the 50's. Two key properties of radioisotope power sources are high energy density and long half-life compared to chemical batteries. The tritium battery used in heart pacemakers exceeds 500 mW-hr, and is being evaluated by the University of Florida for feasibility as a MEMS (MicroElectroMechanical Systems) power source. Conversion of radioisotope sources into electrical power within the constraints of nano-scale dimensions requires cutting-edge technologies and novel approaches. Some advances evolving in the III-V and II-IV semiconductor families have led to a broader consideration of radioisotopes rather free of radiation damage limitations. Their properties can lead to novel battery configurations designed to convert externally located emissions from a highly radioactive environment. This paper presents results for the analytical computational assisted design and modeling of semiconductor prototype nano-scale radioisotope nuclear batteries from MCNP and EGS programs. The analysis evaluated proposed designs and was used to guide the selection of appropriate geometries, material properties, and specific activities to attain power requirements for the MEMS batteries. Plans utilizing high specific activity radioisotopes were assessed in the investigation of designs employing multiple conversion cells and graded junctions with varying band gap properties. Voltage increases sought by serial combination of VOC s are proposed to overcome some of the limitations of a low power density. The power density is directly dependent on the total active areas.

  3. CO2 Conversion By Nano Heaters

    ScienceCinema (OSTI)

    None

    2014-06-23

    A graduate student named Oshadha Ranasingha created this animation on the research he performed on nano heaters while working at NETL.

  4. CO2 Conversion By Nano Heaters

    SciTech Connect (OSTI)

    2014-03-11

    A graduate student named Oshadha Ranasingha created this animation on the research he performed on nano heaters while working at NETL.

  5. Reducing Logistics Footprints and Replenishment Demands: Nano...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Reducing Logistics Footprints and Replenishment Demands: Nano-engineered Silica Aerogels a Proven Method for Water Treatment Citation Details In-Document Search...

  6. Development of Steel Fastener Nano-Ceramic Coatings for Corrosion...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Steel Fastener Nano-Ceramic Coatings for Corrosion Protection of Magnesium Parts (AMD-704) Development of Steel Fastener Nano-Ceramic Coatings for Corrosion Protection of Magnesium...

  7. 2011 Final Report - Nano-Oxide Photocatalysis for Solar Energy...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: 2011 Final Report - Nano-Oxide Photocatalysis for Solar Energy Conversion Citation Details In-Document Search Title: 2011 Final Report - Nano-Oxide Photocatalysis...

  8. Innovative Nano-structuring Routes for Novel ThermoelectricMaterials...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Nano-structuring Routes for Novel Thermoelectric Materials;Phonon Blocking & DOS Engineering Innovative Nano-structuring Routes for Novel Thermoelectric Materials;Phonon Blocking &...

  9. Comparative Study of Structural Damage Under Irradiation in SiC Nano-structured and Conventional Ceramics

    SciTech Connect (OSTI)

    Leconte, Yann; Herlin-Boime, Nathalie; Reynaud, Cecile; Thome, Lionel

    2008-07-01

    In the context of research on new materials for next generation nuclear reactors, it becomes more and more interesting to know what can be the advantages of nano-structured materials for such applications. In this study, we performed irradiation experiments on micro-structured and nano-structured {beta}-SiC samples, with 95 MeV Xe and 4 MeV Au ions. The structure of the samples was characterized before and after irradiation by grazing incidence X-ray diffraction and Raman spectroscopy. The results showed the occurrence of a synergy between electronic and nuclear energy loss in both samples with 95 MeV Xe ions, while the nano-structured pellet was found to have a better resistance to the irradiation with 4 MeV Au ions. (authors)

  10. Method of fabricating a micro machine

    DOE Patents [OSTI]

    Stalford, Harold L

    2014-11-11

    A micro machine may be in or less than the micrometer domain. The micro machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft is operable to be driven by the micro actuator. A tool is coupled to the micro shaft and is operable to perform work in response to at least motion of the micro shaft.

  11. Micro heat barrier

    DOE Patents [OSTI]

    Marshall, Albert C.; Kravitz, Stanley H.; Tigges, Chris P.; Vawter, Gregory A.

    2003-08-12

    A highly effective, micron-scale micro heat barrier structure and process for manufacturing a micro heat barrier based on semiconductor and/or MEMS fabrication techniques. The micro heat barrier has an array of non-metallic, freestanding microsupports with a height less than 100 microns, attached to a substrate. An infrared reflective membrane (e.g., 1 micron gold) can be supported by the array of microsupports to provide radiation shielding. The micro heat barrier can be evacuated to eliminate gas phase heat conduction and convection. Semi-isotropic, reactive ion plasma etching can be used to create a microspike having a cusp-like shape with a sharp, pointed tip (<0.1 micron), to minimize the tip's contact area. A heat source can be placed directly on the microspikes. The micro heat barrier can have an apparent thermal conductivity in the range of 10.sup.-6 to 10.sup.-7 W/m-K. Multiple layers of reflective membranes can be used to increase thermal resistance.

  12. Planar micro-optic solar concentration

    E-Print Network [OSTI]

    Karp, Jason Harris

    2010-01-01

    Planar Micro-Optic Solar Collectors," Optics for Solarin planar micro-optic solar collectors,” Optics Express, (inin planar micro-optic solar collectors,” Optics Express (in

  13. Silicon micro-mold

    DOE Patents [OSTI]

    Morales, Alfredo M. (Livermore, CA)

    2006-10-24

    The present invention describes a method for rapidly fabricating a robust 3-dimensional silicon-mold for use in preparing complex metal micro-components. The process begins by depositing a conductive metal layer onto one surface of a silicon wafer. A thin photoresist and a standard lithographic mask are then used to transfer a trace image pattern onto the opposite surface of the wafer by exposing and developing the resist. The exposed portion of the silicon substrate is anisotropically etched through the wafer thickness down to conductive metal layer to provide an etched pattern consisting of a series of rectilinear channels and recesses in the silicon which serve as the silicon micro-mold. Microcomponents are prepared with this mold by first filling the mold channels and recesses with a metal deposit, typically by electroplating, and then removing the silicon micro-mold by chemical etching.

  14. Micro-machined resonator

    DOE Patents [OSTI]

    Godshall, N.A.; Koehler, D.R.; Liang, A.Y.; Smith, B.K.

    1993-03-30

    A micro-machined resonator, typically quartz, with upper and lower micro-machinable support members, or covers, having etched wells which may be lined with conductive electrode material, between the support members is a quartz resonator having an energy trapping quartz mesa capacitively coupled to the electrode through a diaphragm; the quartz resonator is supported by either micro-machined cantilever springs or by thin layers extending over the surfaces of the support. If the diaphragm is rigid, clock applications are available, and if the diaphragm is resilient, then transducer applications can be achieved. Either the thin support layers or the conductive electrode material can be integral with the diaphragm. In any event, the covers are bonded to form a hermetic seal and the interior volume may be filled with a gas or may be evacuated. In addition, one or both of the covers may include oscillator and interface circuitry for the resonator.

  15. Formation of Single-mode Laser in Perovskite Nanowire via Nano-manipulation

    E-Print Network [OSTI]

    Wang, Kaiyang; Liu, Shuai; Li, Jiankai; Xiao, Shumin; Song, Qinghai

    2015-01-01

    Perovskite based micro- and nano- lasers have attracted considerable research attention in past two years. However, the properties of perovskite devices are mostly fixed once they are synthesized. Here we demonstrate the tailoring of lasing properties of perovskite nanowire lasers via nano-manipulation. By utilizing a tungsten probe, one nanowire has been lifted from the wafer and re-positioned its two ends on two nearby perovskite blocks. Consequently, the conventional Fabry-Perot lasers are completely suppressed and a single laser peak has been observed. The corresponding numerical model reveals that the single-mode lasing operation is formed by the whispering gallery mode in the transverse plane of perovskite nanowire. Our research provides a simple way to tailor the properties of nanowire and it will be essential for the applications of perovskite optoelectronics.

  16. Micro Contacts and Micro Manipulation with MEMS Actuator Arrays

    E-Print Network [OSTI]

    Richardson, David

    Micro Contacts and Micro Manipulation with MEMS Actuator Arrays Karl­Friedrich B¨ohringer Bruce technology for MEMS (micro electro mechanical systems) increase the availability and diversity out tasks using coordinated systems of MEMS units motivates the development of automated, algorithmic

  17. Micro acoustic spectrum analyzer

    DOE Patents [OSTI]

    Schubert, W. Kent; Butler, Michael A.; Adkins, Douglas R.; Anderson, Larry F.

    2004-11-23

    A micro acoustic spectrum analyzer for determining the frequency components of a fluctuating sound signal comprises a microphone to pick up the fluctuating sound signal and produce an alternating current electrical signal; at least one microfabricated resonator, each resonator having a different resonant frequency, that vibrate in response to the alternating current electrical signal; and at least one detector to detect the vibration of the microfabricated resonators. The micro acoustic spectrum analyzer can further comprise a mixer to mix a reference signal with the alternating current electrical signal from the microphone to shift the frequency spectrum to a frequency range that is a better matched to the resonant frequencies of the microfabricated resonators. The micro acoustic spectrum analyzer can be designed specifically for portability, size, cost, accuracy, speed, power requirements, and use in a harsh environment. The micro acoustic spectrum analyzer is particularly suited for applications where size, accessibility, and power requirements are limited, such as the monitoring of industrial equipment and processes, detection of security intrusions, or evaluation of military threats.

  18. Usage Policies Notebook for 2 inch Nano Furnace Revision date

    E-Print Network [OSTI]

    Mease, Kenneth D.

    Usage Policies Notebook for 2 inch Nano Furnace Revision date September 2014 #12;2 Emergency Plan for 2 inch Nano Furnace Standard Operating Procedures for Emergencies Contact information Person Phone;4 Usage Policies for 2 inch Nano Furnace Standard policies for usage The nano furnace can accept up to 2

  19. Breakthrough: micro-electronic photovoltaics

    ScienceCinema (OSTI)

    Okandan, Murat; Gupta, Vipin

    2014-06-23

    Sandia developed tiny glitter-sized photovoltaic (PV) cells that could revolutionize solar energy collection. The crystalline silicon micro-PV cells will be cheaper and have greater efficiencies than current PV collectors. Micro-PV cells require relatively little material to form well-controlled, highly efficient devices. Cell fabrication uses common microelectric and micro-electromechanical systems (MEMS) techniques.

  20. Breakthrough: micro-electronic photovoltaics

    SciTech Connect (OSTI)

    Okandan, Murat; Gupta, Vipin

    2012-04-23

    Sandia developed tiny glitter-sized photovoltaic (PV) cells that could revolutionize solar energy collection. The crystalline silicon micro-PV cells will be cheaper and have greater efficiencies than current PV collectors. Micro-PV cells require relatively little material to form well-controlled, highly efficient devices. Cell fabrication uses common microelectric and micro-electromechanical systems (MEMS) techniques.

  1. Methods and systems for micro transmissions

    DOE Patents [OSTI]

    Stalford, Harold L

    2014-12-23

    Methods and systems for micro transmissions for a micro machine may comprise an input shaft assembly coupled to a micro actuator, an output shaft assembly coupled to a micro shaft, and one or more power conversion elements operable to convert a first type of movement from the micro actuator into a second, disparate type of movement for the micro shaft.

  2. Methods and systems for micro bearings

    DOE Patents [OSTI]

    Stalford, Harold L.

    2012-10-09

    A micro drive assembly may comprise a substrate, a micro shall oriented in-plane with the substrate and at least one micro bearing to support rotation of the micro shaft. The micro shaft and micro bearing may be in or less than the micrometer domain.

  3. Scanning micro-sclerometer

    DOE Patents [OSTI]

    Oliver, W.C.; Blau, P.J.

    1994-11-01

    A scanning micro-sclerometer measures changes in contact stiffness and correlates these changes to characteristics of a scratch. A known force is applied to a contact junction between two bodies and a technique employing an oscillating force is used to generate the contact stiffness between the two bodies. As the two bodies slide relative to each other, the contact stiffness changes. The change is measured to characterize the scratch. 2 figs.

  4. DNA Assembly Line for Nano-Construction

    ScienceCinema (OSTI)

    Oleg Gang

    2010-01-08

    Building on the idea of using DNA to link up nanoparticles scientists at Brookhaven National Lab have designed a molecular assembly line for high-precision nano-construction. Nanofabrication is essential for exploiting the unique properties of nanoparticl

  5. Alexander A. Balandin Nano-Device Laboratory

    E-Print Network [OSTI]

    generation computer logic devices (Intel, AMD) are ;Alexander A. Balandin Hybrid Virus-Inorganic Nanostructures Plant Viruses as Nano-Templates Nanofabrication, et al., Appl. Phys. Lett., 86, 253108 (2005). #12;Alexander A. Balandin Nanofabrication Using Virus

  6. A nano-stepping robotic instrumentation platform

    E-Print Network [OSTI]

    Wahab, Adam Joseph

    2013-01-01

    The development of an Autonomous Nano-stepping Tool (ANT) system is presented. Each ANT is a small, tripodal, robotic instrument capable of untethered precision motion within a quasi-three-dimensional workspace of arbitrary ...

  7. Pool boiling on nano-finned surfaces 

    E-Print Network [OSTI]

    Sriraman, Sharan Ram

    2008-10-10

    The effect of nano-structured surfaces on pool boiling heat transfer is explored in this study. Experiments are conducted in a cubical test chamber containing fluoroinert coolant (PF5060, Manufacturer: 3M Co.) as the working fluid. Pool boiling...

  8. Pool boiling on nano-finned surfaces 

    E-Print Network [OSTI]

    Sriraman, Sharan Ram

    2009-05-15

    The effect of nano-structured surfaces on pool boiling heat transfer is explored in this study. Experiments are conducted in a cubical test chamber containing fluoroinert coolant (PF5060, Manufacturer: 3M Co.) as the working ...

  9. Nano-electromechanical oscillators (NEMOs) for RF technologies.

    SciTech Connect (OSTI)

    Wendt, Joel Robert; Czaplewski, David A.; Gibson, John Murray (Argonne National Laboratory, Argonne, IL); Webster, James R.; Carton, Andrew James; Keeler, Bianca Elizabeth Nelson; Carr, Dustin Wade; Friedmann, Thomas Aquinas; Tallant, David Robert; Boyce, Brad Lee; Sullivan, John Patrick; Dyck, Christopher William; Chen, Xidong (Cedarville University, Cedarville, OH)

    2004-12-01

    Nano-electromechanical oscillators (NEMOs), capacitively-coupled radio frequency (RF) MEMS switches incorporating dissipative dielectrics, new processing technologies for tetrahedral amorphous carbon (ta-C) films, and scientific understanding of dissipation mechanisms in small mechanical structures were developed in this project. NEMOs are defined as mechanical oscillators with critical dimensions of 50 nm or less and resonance frequencies approaching 1 GHz. Target applications for these devices include simple, inexpensive clocks in electrical circuits, passive RF electrical filters, or platforms for sensor arrays. Ta-C NEMO arrays were used to demonstrate a novel optomechanical structure that shows remarkable sensitivity to small displacements (better than 160 fm/Hz {sup 1/2}) and suitability as an extremely sensitive accelerometer. The RF MEMS capacitively-coupled switches used ta-C as a dissipative dielectric. The devices showed a unipolar switching response to a unipolar stimulus, indicating the absence of significant dielectric charging, which has historically been the major reliability issue with these switches. This technology is promising for the development of reliable, low-power RF switches. An excimer laser annealing process was developed that permits full in-plane stress relaxation in ta-C films in air under ambient conditions, permitting the application of stress-reduced ta-C films in areas where low thermal budget is required, e.g. MEMS integration with pre-existing CMOS electronics. Studies of mechanical dissipation in micro- and nano-scale ta-C mechanical oscillators at room temperature revealed that mechanical losses are limited by dissipation associated with mechanical relaxation in a broad spectrum of defects with activation energies for mechanical relaxation ranging from 0.35 eV to over 0.55 eV. This work has established a foundation for the creation of devices based on nanomechanical structures, and outstanding critical research areas that need to be addressed for the successful application of these technologies have been identified.

  10. Nano structural anodes for radiation detectors

    DOE Patents [OSTI]

    Cordaro, Joseph V.; Serkiz, Steven M.; McWhorter, Christopher S.; Sexton, Lindsay T.; Retterer, Scott T.

    2015-07-07

    Anodes for proportional radiation counters and a process of making the anodes is provided. The nano-sized anodes when present within an anode array provide: significantly higher detection efficiencies due to the inherently higher electric field, are amenable to miniaturization, have low power requirements, and exhibit a small electromagnetic field signal. The nano-sized anodes with the incorporation of neutron absorbing elements (e.g., .sup.10B) allow the use of neutron detectors that do not use .sup.3He.

  11. Multi-layer micro/nanofluid devices with bio-nanovalves

    DOE Patents [OSTI]

    Li, Hao; Ocola, Leonidas E.; Auciello, Orlando H.; Firestone, Millicent A.

    2013-01-01

    A user-friendly multi-layer micro/nanofluidic flow device and micro/nano fabrication process are provided for numerous uses. The multi-layer micro/nanofluidic flow device can comprise: a substrate, such as indium tin oxide coated glass (ITO glass); a conductive layer of ferroelectric material, preferably comprising a PZT layer of lead zirconate titanate (PZT) positioned on the substrate; electrodes connected to the conductive layer; a nanofluidics layer positioned on the conductive layer and defining nanochannels; a microfluidics layer positioned upon the nanofluidics layer and defining microchannels; and biomolecular nanovalves providing bio-nanovalves which are moveable from a closed position to an open position to control fluid flow at a nanoscale.

  12. Evaporation-Driven Fast Crystallization of 3D Micro- and Nano-particle Assemblies via Micro Mechanical Systems

    E-Print Network [OSTI]

    Choi, Sun

    2012-01-01

    Patterning and Electronics on Flexible Substrate by Directcircuitry of printed electronics on flexible substrates,61-63], printed electronics on flexible substrate[64, 65],

  13. Evaporation-Driven Fast Crystallization of 3D Micro- and Nano-particle Assemblies via Micro Mechanical Systems

    E-Print Network [OSTI]

    Choi, Sun

    2012-01-01

    used for various MEMS (microelectromechanical systems)key structures in Bio-MEMS (microelectromechanical systems),

  14. Evaporation-Driven Fast Crystallization of 3D Micro- and Nano-particle Assemblies via Micro Mechanical Systems

    E-Print Network [OSTI]

    Choi, Sun

    2012-01-01

    Synthesis of Highly Ordered, Three-Dimensional, Macroporous Structures of Amorphous or Crystalline Inorganic Oxides, Phosphates, and Hybrid Composites, Chemistry of Materials,

  15. Evaporation-Driven Fast Crystallization of 3D Micro- and Nano-particle Assemblies via Micro Mechanical Systems

    E-Print Network [OSTI]

    Choi, Sun

    2012-01-01

    Deposition Means, Microelectromechanical Systems, Journalvarious MEMS (microelectromechanical systems) applicationsin Bio-MEMS (microelectromechanical systems), chromatography

  16. Evaporation-Driven Fast Crystallization of 3D Micro- and Nano-particle Assemblies via Micro Mechanical Systems

    E-Print Network [OSTI]

    Choi, Sun

    2012-01-01

    3D ZnO Nanoparticle Assemblies on Gold Electrodes A novel manufacturing method, “High resolution screen printing

  17. Evaporation-Driven Fast Crystallization of 3D Micro- and Nano-particle Assemblies via Micro Mechanical Systems

    E-Print Network [OSTI]

    Choi, Sun

    2012-01-01

    of two-dimensional colloidal crystals, Chemical Physicssubstrates templated by colloidal crystal films, Journal ofof a Monolayer Colloidal Crystal by Meniscus Pinning,

  18. Micro-fluidic interconnect

    DOE Patents [OSTI]

    Okandan, Murat (Albuquerque, NM); Galambos, Paul C. (Albuquerque, NM); Benavides, Gilbert L. (Los Ranchos, NM); Hetherington, Dale L. (Albuquerque, NM)

    2006-02-28

    An apparatus for simultaneously aligning and interconnecting microfluidic ports is presented. Such interconnections are required to utilize microfluidic devices fabricated in Micro-Electromechanical-Systems (MEMS) technologies, that have multiple fluidic access ports (e.g. 100 micron diameter) within a small footprint, (e.g. 3 mm.times.6 mm). Fanout of the small ports of a microfluidic device to a larger diameter (e.g. 500 microns) facilitates packaging and interconnection of the microfluidic device to printed wiring boards, electronics packages, fluidic manifolds etc.

  19. MicroBooNE

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on dark matterEnergyPublicatons ContactThousandEnergyMicroBooNE

  20. Micro rotary machine and methods for using same

    DOE Patents [OSTI]

    Stalford, Harold L. (Norman, OK)

    2012-04-17

    A micro rotary machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft comprises a horizontal shaft and is operable to be rotated by the micro actuator. A micro tool is coupled to the micro shaft and is operable to perform work in response to motion of the micro shaft.

  1. Carbon nano-relays for low power switching

    E-Print Network [OSTI]

    Milaninia, Kaveh Mehdi

    2009-01-01

    In this thesis two unique carbon based nanoelectromechanical switches or carbon nano-relays are demonstrated as a toolkit for investigating NEMs based low power switching. The first is a vertical carbon nano-relay, consisting ...

  2. Exploring PropertiesSurface Coatings: Nano-Toss! Try this!

    E-Print Network [OSTI]

    Exploring Properties­Surface Coatings: Nano-Toss! Try this! 1. Presenter. Visitors experiment with modifying nano-ball's surface with different coatings: polymers, or decorative rhinestone-like stickers, or electrical tape.) 3. Visitors throw the coated

  3. Sustainable Nano-Materials: What is happening at the cellular...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Level NanoCellulose Balls Cellulose Whiskers Cellulosics Artificial SkinBlood Vessels High surface area, Hydrophilicity, Biocompatibility, and Biodegradability...

  4. Nano-scale Sensor Networks for Chemical Eisa Zarepour1

    E-Print Network [OSTI]

    New South Wales, University of

    natural gas to liquid fuel. Given that reliable wireless communi- cation at nano-scale is at very early

  5. Micro-channel plate detector

    SciTech Connect (OSTI)

    Elam, Jeffrey W.; Lee, Seon W.; Wang, Hsien -Hau; Pellin, Michael J.; Byrum, Karen; Frisch, Henry J.

    2015-09-22

    A method and system for providing a micro-channel plate detector. An anodized aluminum oxide membrane is provided and includes a plurality of nanopores which have an Al coating and a thin layer of an emissive oxide material responsive to incident radiation, thereby providing a plurality of radiation sensitive channels for the micro-channel plate detector.

  6. Dynamics of heat transfer between nano systems

    E-Print Network [OSTI]

    Svend-Age Biehs; Girish S. Agarwal

    2012-10-18

    We develop a dynamical theory of heat transfer between two nano systems. In particular, we consider the resonant heat transfer between two nanoparticles due to the coupling of localized surface modes having a finite spectral width. We model the coupled nanosystem by two coupled quantum mechanical oscillators, each interacting with its own heat bath, and obtain a master equation for the dynamics of heat transfer. The damping rates in the master equation are related to the lifetimes of localized plasmons in the nanoparticles. We study the dynamics towards the steady state and establish connection with the standard theory of heat transfer in steady state. For strongly coupled nano particles we predict Rabi oscillations in the mean occupation number of surface plasmons in each nano particle.

  7. Micro thrust and heat generator

    DOE Patents [OSTI]

    Garcia, E.J.

    1998-11-17

    A micro thrust and heat generator have a means for providing a combustion fuel source to an ignition chamber of the micro thrust and heat generator. The fuel is ignited by a ignition means within the micro thrust and heat generator`s ignition chamber where it burns and creates a pressure. A nozzle formed from the combustion chamber extends outward from the combustion chamber and tappers down to a narrow diameter and then opens into a wider diameter where the nozzle then terminates outside of said combustion chamber. The pressure created within the combustion chamber accelerates as it leaves the chamber through the nozzle resulting in pressure and heat escaping from the nozzle to the atmosphere outside the micro thrust and heat generator. The micro thrust and heat generator can be microfabricated from a variety of materials, e.g., of polysilicon, on one wafer using surface micromachining batch fabrication techniques or high aspect ratio micromachining techniques (LIGA). 30 figs.

  8. Japan Advanced Institute of Science and Technology Nano Materials Technology

    E-Print Network [OSTI]

    Ogawa, Mizuhito

    started in April 2002 as a renewal of the former Center for New Materials originally established as oneJapan Advanced Institute of Science and Technology Nano Materials Technology (Lecture) Course Center for Nano Materials and Technology #12;The Center for Nano Materials and Technology (CNMT) has

  9. Nano-Manufacturing While nanotechnology promises to revolutionize everything from

    E-Print Network [OSTI]

    Hill, Wendell T.

    Nano-Manufacturing While nanotechnology promises to revolutionize everything from energy production futuristic systems will remain science fiction without practical and scalable nano-manufacturing capabilities. Researchers at the University of Maryland's NanoCenter have the manufacturing capabilities needed for turning

  10. Chemical micro-sensor

    DOE Patents [OSTI]

    Ruggiero, Anthony J.

    2005-05-03

    An integrated optical capillary electrophoresis system for analyzing an analyte. A modulated optical pump beam impinges on an capillary containing the analyte/buffer solution which is separated by electrophoresis. The thermally-induced change in the index of refraction of light in said electrophoresis capillary is monitored using an integrated micro-interferometer. The interferometer includes a first interferometer arm intersecting the electrophoresis capillary proximate the excitation beam and a second, reference interferometer arm. Changes in index of refraction in the analyte measured by interrogating the interferometer state using white light interferometry and a phase-generated carrier demodulation technique. Background thermo-optical activity in the buffer solution is cancelled by splitting the pump beam and exciting pure buffer solution in a second section of capillary where it crosses the reference arm of the interferometer.

  11. Peristaltic pumps work in nano scales

    E-Print Network [OSTI]

    Farnoush Farahpour; Mohammad Reza Ejtehadi

    2013-08-05

    A design for a pump is suggested which is based on well-known peristaltic pumps. In order to simply describe the operation of the proposed pump, an innovative interpretation of low Reynolds number swimmers is presented and thereafter a similar theoretical model would be suggested to quantify the behavior of the pumps. A coarse-grained molecular dynamic simulation is used to examine the theoretical predictions and measure the efficiency of the pump in nano scales. It is shown that this pump with a modest design is capable of being a good option for transport processes in nano scale.

  12. Automated micro-tracking planar solar concentrators

    E-Print Network [OSTI]

    Hallas, Justin Matthew

    2011-01-01

    planar micro-optic solar collectors," Opt. Express 19, A673-planar micro-optic solar collectors," Opt. Express 19, A673-

  13. Development of Electrochemical Micro Machining 

    E-Print Network [OSTI]

    Srinivas Sundarram, Sriharsha

    2008-10-10

    The machining of materials on micrometer and sub-micrometer scale is considered the technology of the future. The current techniques for micro manufacturing mostly are silicon based. These manufacturing techniques are ...

  14. Single molecule DNA dynamics in micro- and nano-fluidic devices

    E-Print Network [OSTI]

    Tang, Jing, Ph. D. Massachusetts Institute of Technology

    2011-01-01

    Rapid genome characterization is one of the grand challenges of genome science today. Although the complete sequences of certain representative human genomes have been determined, genomes from a much larger number of ...

  15. Solution-processed photodetectors from colloidal silicon nano/micro particle composite

    E-Print Network [OSTI]

    Lin, Lih Y.

    -inorganic nanocrystal solar cells processed from solution," Science 310(5747), 462­465 (2005). 2. J. M. Luther, M. Law, M. C. Beard, Q. Song, M. O. Reese, R. J. Ellingson, and A. J. Nozik, "Schottky solar cells based. Arango, and V. Bulovic, "Photodetectors based on treated CdSe quantum- dot films," Appl. Phys. Lett. 87

  16. Exploring the Limits of Boiling and Evaporative Heat Transfer Using Micro/Nano Structures

    E-Print Network [OSTI]

    Lu, Ming-Chang

    2010-01-01

    for Cu nanowire electroplating, (b) Cu deposition byc) Thickening the backside Cu by electroplating, (d)Cu electroplating through the front side of the membrane to

  17. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    storage and direct solar energy conversion to work. FocusManagement and Solar Energy Conversion Applications By DusanThermal Management and Solar Energy Conversion Applications

  18. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    Nanotubes as High-Energy Density Solar Thermal Fuels,” Nanolatent heat energy storage and solar thermal applications,[for Storage of Solar Thermal Energy,” Solar Energy, 18 (3),

  19. NANO TOOLS & PRODUCTS IN MICRO & NANOTECHNOLOGY Engineered Carbon Nanotube (CNT) and

    E-Print Network [OSTI]

    the ability to make functional devices in solution. Metal Infusion Surface Treatment (MIST)--C-3 International, LLC www.cccintl.com MIST is an advanced, low-cost infused coat- ing technology. The process takes any elements and their unique properties are diffused into surfaces, along with a 0.1- to 0.5-µm infusion

  20. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    into Power Using Organic Rankine Cycles – A Review ofDesign Criteria for an Organic Rankine Cycle Using Low-converted to work in organic Rankine cycle power plants. [

  1. Micro Catalytic Combustor with Pd/Nano-porous Alumina for High-Temperature Application

    E-Print Network [OSTI]

    Kasagi, Nobuhide

    . A heat exchanger with a temperature efficiency of 0.78 is assumed for heat recirculation. Thus as high as 850 o C and extremely high heat generation density of 2-5x108 W/m3 has been achieved been made for radial-flow-type combustors using Fluent 6 (Fluent Inc.). Figure 1 shows a radial-flow-type

  2. Exploring the Limits of Boiling and Evaporative Heat Transfer Using Micro/Nano Structures

    E-Print Network [OSTI]

    Lu, Ming-Chang

    2010-01-01

    transfer coefficient models in pool boiling In summary, highlength effect on nucleate pool boiling heat transfer AnnalsTheory of The Peak and Minimum Pool Boiling Heat Fluxes, CR-

  3. Micro/nano-patterning of supported lipid bilayers: biophysical studies and membrane-associated species separation 

    E-Print Network [OSTI]

    Shi, Jinjun

    2009-05-15

    -PE/POPC) .................................................. 51 3.5 TIRF image of lipid bilayers-coated microchannel array containing various concentrations of dye-labeled CTB............................................... 54 3.6 UV-Vis spectra of quartz, PDMS, and glass................................................. 58 3.7 Epifluorescence image of 0.1 mol% TR-DHPE/POPC bilayer microaaray with different deep UV exposure time: (a) 0, (b) 30, (c) 120, (d) 180, (e) 300, (f) 450 sec...

  4. Advanced electron micro-and nano-scopy Rafal E. Dunin-Borkowski 1

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    for Electron Nanoscopy, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark Transmission electron specialized techniques in electron microscopy. The first technique involves the use of in situ gas reaction and R. E. Dunin-Borkowski, Nature Materials 8, 271 (2009). #12;

  5. Detection of Explosives Using a Micro-cantilever Array Nano-Calorimeter System 

    E-Print Network [OSTI]

    Lane, Matthew

    2011-08-08

    Over the past few decades, the likeliness of an attack from explosives has increased dramatically. Hence, the need to find a reliable device with the ability to detect explosives has increased even more. Sensing schemes ...

  6. || 13.11.2014 1David Hller, Lukas Hackl Mechanics of Nano and Micro Materials, 2014

    E-Print Network [OSTI]

    Daraio, Chiara

    Seebeck Jesus 1855 Thomson 1834 Peltier · Compass needle deflects upon induced Temperature gradient · 1st dissimilar conductors · 1st Thermoelectric or Peltier effect: Current can induce temperature gradient 1821 Seebeck Jesus 1855 Thomson 1834 Peltier 1911 Altenkirch 1950 First Semiconductors The Peltier Effect Intro

  7. Microbial Power-Generating Capabilities on Micro-/Nano-Structured Anodes in

    E-Print Network [OSTI]

    Cincinnati, University of

    , State University of New York-Binghamton, Binghamton, NY 13902, USA 2 Center for Autonomous Solar Power, State University of New York-Binghamton, Binghamton, NY 13902, USA 3 Nanoelectronics Laboratory as a promising alternative technology that could alleviate the energy crisis and environmental pollution [4

  8. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    2002, “Survey of Thermal Energy Storage for Parabolic TroughChange Materials for Thermal Energy Storage,” Renewable andTemperature Thermal Energy Storage for Power Generation.

  9. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    polytetrafluoroethylene (PTFE) tubes were used to connectexperiments utilized a PTFE tube inside a vacuum chamber (Pdislocation within the PTFE tube. This is more clearly

  10. Thermal Bimorph Micro-Cantilever Based Nano-Calorimeter for Sensing of Energetic Materials 

    E-Print Network [OSTI]

    Kang, Seokwon

    2012-07-16

    the microcantilever surface enables maximizing the thermally induced stress, which results in the enhancement of sensor sensitivity. For this purpose, CNTs are synthesized by post-growth method over the metal (e.g., Palladium Chloride: PdCl2) catalyst arrays pre-deposited...

  11. Micro/nano devices fabricated from Cu-Hf thin films

    DOE Patents [OSTI]

    Luber, Erik J; Ophus, Colin; Mitlin, David; Olsen, Brian; Harrower, Christopher; Radmilovi, Velimir

    2013-06-04

    An all-metal microdevice or nanodevice such as an atomic force microscope probe is manufactured from a copper-hafnium alloy thin film having an x-ray amorphous microstructure.

  12. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    Organometallic Frames for Solar Energy Storage, Berkeley. [Nocera D. G. , 2010, “Solar Energy Supply and Storage forof Abiotic Photo-chemical Solar Energy Storage Systems,”

  13. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    structure; Q is the applied power, T wall is the temperaturehere: Q is the applied power, T wall is the temperature atstructure; Q is the applied power, T wall is the temperature

  14. Assembly of biological building blocks for nano- and micro-fabrication of materials

    E-Print Network [OSTI]

    Chiang, Chung-Yi

    2008-01-01

    Experimental studies were performed to fabricate various material structures using genetically engineered M13 bacteriophage. This virus template showed superior controls of material syntheses from nanoscale to microscale. ...

  15. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    S. a. , 2004, “Solar Thermal Collectors and Applications,”86] Schnatbaum L. , 2009, “Solar Thermal Power Plants,” Thefor Storage of Solar Thermal Energy,” Solar Energy, 18 (3),

  16. Characterizing the Nano and Micro Structure of Concrete to Improve its Durability

    E-Print Network [OSTI]

    Monteiro, P.J.M.

    2009-01-01

    N. McN. A small- angle neutron-scattering study of cement20. Wenk HR Edit. Neutron Scattering in Earth Sciences. Vol.R. Application of neutron scattering to Portland cement.

  17. Characterizing the nano and micro structure of concrete to improve its durability

    E-Print Network [OSTI]

    Monteiro, P.J.M.

    2008-01-01

    N. McN. A small- angle neutron-scattering study of cement20. Wenk HR Edit. Neutron Scattering in Earth Sciences. Vol.R. Application of neutron scattering to Portland cement.

  18. Multiple View 3D Reconstruction of Micro-to Nano-Scopic Specimens

    E-Print Network [OSTI]

    Abidi, Mongi A.

    to my family, especially my wife, the love of my life, Joyce Schultz, my mother, Cynthia Schultz, my friends both old and new who have always been there to help dull the pain that is endured during the times

  19. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    permission from Energy and Environmental Science, CopyrightRenewable Energy,” Energy & Environmental Science, 2 (6), p.Solar Energy,” Energy & Environmental Science, 4 (11), pp. [

  20. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    Nocera D. G. , 2010, “Solar Energy Supply and Storage forof Abiotic Photo-chemical Solar Energy Storage Systems,”Power Plants,” Journal of Solar Energy Engineering, 124 (2),

  1. Published in Micro & Nano Letters Received on 28th December 2007

    E-Print Network [OSTI]

    -oxide- semiconductor technology than carbon nanotubes owing to graphene's planar geometry. The recently discovered: 10.1049/mnl:20070074 ISSN 1750-0443 Properties of graphene produced by the high pressure on a new method for the synthesis of graphene, a mono-layer of carbon atoms arranged in a honey comb

  2. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    sustainable and environmentally friendly energy resources, which is currently at ~8.5 % in the US. [

  3. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    Energy Storage for Power Generation. Part 1—Concepts,effectively. Thus, in power generation systems, phase changeIn addition to power generation, phase change heat transfer

  4. Engineering the Intracellular Micro- and Nano-environment via Magnetic Nanoparticles

    E-Print Network [OSTI]

    Tseng, Peter

    2012-01-01

    Journal of Microelectromechanical Systems 20, 842-851 (separator. Microelectromechanical Systems, Journal of, 5(3):

  5. Engineering the Intracellular Micro- and Nano-environment via Magnetic Nanoparticles

    E-Print Network [OSTI]

    Tseng, Peter

    2012-01-01

    switch. Journal of Microelectromechanical Systems 20, 842-particle separator. Microelectromechanical Systems, Journal

  6. Fabrication of Ordered Array of Tips-pentacene Micro- and Nano-scale Single Crystals 

    E-Print Network [OSTI]

    Xia, Ning

    2013-04-26

    As an important type of organic semiconductors, organic small molecule crystals have great potential for low-cost applications such as plastic solar cells (PSC), organic light emitting diodes (OLED) and organic field-effect transistors (OFET). Among...

  7. Micro and nano mechanics of materials response during instrumented frictional sliding

    E-Print Network [OSTI]

    Bellemare, Simon C. (Simon Claude)

    2006-01-01

    Over the past decade, many computational studies have explored the mechanics of instrumented normal indentation. In contrast, very few studies have investigated quantitative aspects of frictional sliding contact in the ...

  8. Microstructure-based Computational Modeling of the Mechanical Behavior of Polymer Micro/Nano-composites 

    E-Print Network [OSTI]

    Heydarkhan Tehrani, Ardeshir

    2013-08-26

    of such numerical studies are based on characterizing the MNPCs through simple microstructures, as circular particles or straight fibers embedded in a specific polymer matrix. Although these geometries are effective in virtual modeling some types of composite...

  9. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    radiation passes through matter, its interaction withinteractions of electromagnetic radiation with the electron density distribution within matter.

  10. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    Storage of Solar Thermal Energy,” Solar Energy, 18 (3), pp.Nocera D. G. , 2010, “Solar Energy Supply and Storage forof Abiotic Photo-chemical Solar Energy Storage Systems,”

  11. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    focus only on the solar collector and catalytic converterfluid, a microfluidic solar collector, and a catalytic heatS. a. , 2004, “Solar Thermal Collectors and Applications,”

  12. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    for Storage of Solar Thermal Energy,” Solar Energy, 18 (3),Toward Molecular Solar-Thermal Energy Storage,” Angewandtescale molecular solar thermal energy storage system, in

  13. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    Photo-chemical Solar Energy Storage Systems,” AngewandteExploitation of Solar Energy Storage Systems . ValenceOrganometallic Frames for Solar Energy Storage, Berkeley. [

  14. Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications

    E-Print Network [OSTI]

    Coso, Dusan

    2013-01-01

    and Photovoltaic Solar Energy Converters,” American ChemicalNocera D. G. , 2010, “Solar Energy Supply and Storage forof Abiotic Photo-chemical Solar Energy Storage Systems,”

  15. Femtosecond micro-and nano-machining of materials for microfluidic applications

    E-Print Network [OSTI]

    Davis, Lloyd M.

    storage, optoelectronic systems, photonic nanostructures, and surface relief gratings has been recently ablation, laser-machined features can be added to devices prototyped by lithography. To accomplish that single- and multi-pulse laser machining for fluidic and photonic devices. Feature size and structural

  16. Tobacco mosaic virus: A biological building block for micro/nano/bio

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of rare Kaon and Pion decaysArticle) |errors(TechnicalofConnect

  17. NOVEL PREPARATION AND MAGNETO CHEMICAL CHARACTERIZATION OF NANO-PARTICLE MIXED ALCOHOL CATALYSTS

    SciTech Connect (OSTI)

    Setala V. Naidu

    2003-01-01

    We have produced Co, Cu, and Fe nano-particles by Laser-induced solution deposition (LISD) as evidenced by TEM investigations. Sizes of the nano-particles created are in the order of 5 nm. The LISD system could generate nano-particles in quantities only in the order of a milligram. This may be mainly due to the limited photo induced reactions taking place on the surface of the solutions. We have designed experiments to use drop flow technique with LISD for nano-particle deposition on microreactors. Preliminary work has been done on Co and Fe thin film deposited microreactors. We are also investigating the catalytic properties of nano-particles of FeO and CoO prepared by ball milling and dispersed into sol-gel prepared alumina granules. We have continued our investigation of catalytic reactions of Cu, Co, Fe, Cu/Co, Cu/Fe and Co/Fe on alumina support. The metal oxides were first reduced with hydrogen and used for the conversion of CO/H{sub 2}. The surface area of the catalysts has been determined by nitrogen disorption. They are in the range of 200-300 m{sup 2}/g. Cu, Co, Fe, Co/Fe, Cu/Co and Cu/Fe showed increasing order of catalytic activity for CO/H{sub 2} conversion. We are also studying catalytic conversion rates for CO{sub 2}/H{sub 2} and CO/CO{sub 2}/H{sub 2} mixtures using these catalysts. Our investigations of Co and Fe thin film deposited microreactors showed higher CO/H{sub 2} conversion for Fe compared to Co. We have used vibrating sample magnetometer (VSM) to study the magnetic characteristics of as prepared, reduced, post-reaction catalysts. Comparative study of the ferromagnetic component of these samples gives the reduction efficiency and the changes in metal centers during catalytic reactions. Magnetic studies of post-reaction Co and Fe micro-reactors show that more carbide formation occurs for iron compared to cobalt.

  18. bectcom-milli | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Modifications at NYSEGs Milliken Station Units 1 and 2 (Oct 1993) B.L. Marker and E.G. Beckman, Joint ASMEIEEE Power Generation Conference, Kansas City, KS Estimates of Soil...

  19. Millis, Massachusetts: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland: Energy ResourcesDec 2005 WindPROLLC JumpEthanol LLCMillis, Massachusetts:

  20. bectcom-milli | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLos Alamos verifiesValidationENCOAL® Mild Coal Gasification

  1. Tracer diffusion of hard-sphere binary mixtures under nano-confinement

    E-Print Network [OSTI]

    Umberto Marini Bettolo Marconi; Paolo Malgaretti; Ignacio Pagonabarraga

    2015-09-29

    The physics of diffusion phenomena in nano and micro channels has attracted a lot of attention in recent years, due to its close connection with many technological, medical and industrial applications. In the present paper we employ a kinetic approach to investigate how the confinement in nanostructured geometries affects the diffusive properties of fluid mixtures and leads to the appearance of properties different from those of bulk systems. In particular, we derive an expression for the friction tensor in the case of a bulk fluid mixture confined to a narrow slit having undulated walls. The boundary roughness leads to a new mechanism for transverse diffusion, and can even lead to an effective diffusion along the channel larger than the one corresponding to a planar channel of equivalent section. Finally we discuss a reduction of the previous equation to a one dimensional effective diffusion equation in which an entropic term encapsulates the geometrical information on the channel shape.

  2. Anomalously augmented charge transport capabilities of biomimetically transformed collagen intercalated nano graphene based biocolloids

    E-Print Network [OSTI]

    Dhar, Purbarun; Nayar, Suprabha; Das, Sarit K

    2015-01-01

    Collagen micro fibrils bio mimetically intercalate graphitic structures in aqueous media to form graphene nano platelets collagen complex (G Cl). Synthesized G Cl based stable, aqueous bio nanocolloids exhibit anomalously augmented charge transportation capabilities over simple collagen or graphene based colloids. The concentration tunable electrical transport properties of synthesized aqueous G Cl bio nanocolloids has been experimentally observed, theoretically analyzed and mathematically modeled. A comprehensive approach to mathematically predict the electrical transport properties of simple graphene and collagen based colloids has been presented. A theoretical formulation to explain the augmented transport characteristics of the G Cl bio nanocolloids based on the physico chemical interactions among the two entities, as revealed from extensive characterizations of the G Cl bio complex, has also been proposed. Physical interactions between the zwitterionic amino acid molecules within the collagen triple heli...

  3. Asphaltenes-based polymer nano-composites

    DOE Patents [OSTI]

    Bowen, III, Daniel E

    2013-12-17

    Inventive composite materials are provided. The composite is preferably a nano-composite, and comprises an asphaltene, or a mixture of asphaltenes, blended with a polymer. The polymer can be any polymer in need of altered properties, including those selected from the group consisting of epoxies, acrylics, urethanes, silicones, cyanoacrylates, vulcanized rubber, phenol-formaldehyde, melamine-formaldehyde, urea-formaldehyde, imides, esters, cyanate esters, allyl resins.

  4. Electrochemical method of producing nano-scaled graphene platelets

    DOE Patents [OSTI]

    Zhamu, Aruna; Jang, Joan; Jang, Bor Z.

    2013-09-03

    A method of producing nano-scaled graphene platelets with an average thickness smaller than 30 nm from a layered graphite material. The method comprises (a) forming a carboxylic acid-intercalated graphite compound by an electrochemical reaction; (b) exposing the intercalated graphite compound to a thermal shock to produce exfoliated graphite; and (c) subjecting the exfoliated graphite to a mechanical shearing treatment to produce the nano-scaled graphene platelets. Preferred carboxylic acids are formic acid and acetic acid. The exfoliation step in the instant invention does not involve the evolution of undesirable species, such as NO.sub.x and SO.sub.x, which are common by-products of exfoliating conventional sulfuric or nitric acid-intercalated graphite compounds. The nano-scaled platelets are candidate reinforcement fillers for polymer nanocomposites. Nano-scaled graphene platelets are much lower-cost alternatives to carbon nano-tubes or carbon nano-fibers.

  5. NanoSIMS, TEM, and XANES studies of a unique presolar supernova graphite grain

    SciTech Connect (OSTI)

    Groopman, Evan; Bernatowicz, Thomas; Zinner, Ernst; Nittler, Larry R.

    2014-07-20

    We report on isotopic and microstructural investigations of a unique presolar supernova (SN) graphite grain, referred to as G6, isolated from the Orgueil CI chondrite. G6 contains complex heterogeneities in its isotopic composition and in its microstructure. Nano-scale secondary ion mass spectrometer isotope images of ultramicrotome sections reveal heterogeneities in its C, N, and O isotopic compositions, including anomalous shell-like structures. Transmission electron microscope studies reveal a nanocrystalline core surrounded by a turbostratic graphite mantle, the first reported nanocrystalline core from a low-density SN graphite grain. Electron diffraction analysis shows that the nanocrystalline core consists of randomly oriented 2-4 nm graphene particles, similar to those in cores of high-density (HD) presolar graphite grains from asymptotic giant branch stars. G6's core also exhibits evidence for planar stacking of these graphene nano-sheets with a domain size up to 4.5 nm, which was unobserved in the nanocrystalline cores of HD graphite grains. We also report on X-ray absorption near-edge structure measurements of G6. The complex isotopic- and micro-structure of G6 provides evidence for mixing and/or granular transport in SN ejecta.

  6. Investigation of Rheological and Nano-Rheological Properties of Asphalt Binders 

    E-Print Network [OSTI]

    Kabir, Pooyan

    2014-08-04

    to the asphalt microstructure and nano-rheology. Furthermore, this study demonstrates the application of dynamic shear rheometer for macro scale and the application of atomic force microscopy imaging for nano-scale. Extraction of nano-scale engineering properties...

  7. DOI: 10.1002/adma.200800011 Nano-and Micropatterning of Optically Transparent,

    E-Print Network [OSTI]

    begins with the purification of harvested Bombyx mori cocoons. Sericin, a water-soluble glycoprotein is then extracted from the solution over the course of three days, through a water-based dialysis process is rinsed thoroughly in Milli-Q water and allowed to dry overnight. The dry fibroin bundle is then dissolved

  8. New nano-mechanical plasmonic phase modulator offers electronics...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    nano-mechanical plasmonic phase modulator offers electronics potential April 3, 2015 Tweet EmailPrint By using standard semiconductor manufacturing equipment, a team of scientists...

  9. Self-Assembly of Polymer Nano-Elements on Sapphire

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Self-Assembly of Polymer Nano-Elements on Sapphire Print Self-assembly of polymers promises to vastly improve the properties and manufacturing processes of nanostructured...

  10. Nano-structures Thermoelectric Materals - Part 1 | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    1 Nano-structures Thermoelectric Materals - Part 1 2002 DEER Conference Presentation: RTI International 2002deervenkatasubramanian1.pdf More Documents & Publications...

  11. Micro-machined calorimetric biosensors

    DOE Patents [OSTI]

    Doktycz, Mitchel J. (Knoxville, TN); Britton, Jr., Charles L. (Alcoa, TN); Smith, Stephen F. (Loudon, TN); Oden, Patrick I. (Plano, TX); Bryan, William L. (Knoxville, TN); Moore, James A. (Powell, TN); Thundat, Thomas G. (Knoxville, TN); Warmack, Robert J. (Knoxville, TN)

    2002-01-01

    A method and apparatus are provided for detecting and monitoring micro-volumetric enthalpic changes caused by molecular reactions. Micro-machining techniques are used to create very small thermally isolated masses incorporating temperature-sensitive circuitry. The thermally isolated masses are provided with a molecular layer or coating, and the temperature-sensitive circuitry provides an indication when the molecules of the coating are involved in an enthalpic reaction. The thermally isolated masses may be provided singly or in arrays and, in the latter case, the molecular coatings may differ to provide qualitative and/or quantitative assays of a substance.

  12. Micro-machined resonator oscillator

    DOE Patents [OSTI]

    Koehler, D.R.; Sniegowski, J.J.; Bivens, H.M.; Wessendorf, K.O.

    1994-08-16

    A micro-miniature resonator-oscillator is disclosed. Due to the miniaturization of the resonator-oscillator, oscillation frequencies of one MHz and higher are utilized. A thickness-mode quartz resonator housed in a micro-machined silicon package and operated as a telemetered sensor beacon'' that is, a digital, self-powered, remote, parameter measuring-transmitter in the FM-band. The resonator design uses trapped energy principles and temperature dependence methodology through crystal orientation control, with operation in the 20--100 MHz range. High volume batch-processing manufacturing is utilized, with package and resonator assembly at the wafer level. Unique design features include squeeze-film damping for robust vibration and shock performance, capacitive coupling through micro-machined diaphragms allowing resonator excitation at the package exterior, circuit integration and extremely small (0.1 in. square) dimensioning. A family of micro-miniature sensor beacons is also disclosed with widespread applications as bio-medical sensors, vehicle status monitors and high-volume animal identification and health sensors. The sensor family allows measurement of temperatures, chemicals, acceleration and pressure. A microphone and clock realization is also available. 21 figs.

  13. Micro-machined resonator oscillator

    DOE Patents [OSTI]

    Koehler, Dale R. (Albuquerque, NM); Sniegowski, Jeffry J. (Albuquerque, NM); Bivens, Hugh M. (Albuquerque, NM); Wessendorf, Kurt O. (Albuquerque, NM)

    1994-01-01

    A micro-miniature resonator-oscillator is disclosed. Due to the miniaturization of the resonator-oscillator, oscillation frequencies of one MHz and higher are utilized. A thickness-mode quartz resonator housed in a micro-machined silicon package and operated as a "telemetered sensor beacon" that is, a digital, self-powered, remote, parameter measuring-transmitter in the FM-band. The resonator design uses trapped energy principles and temperature dependence methodology through crystal orientation control, with operation in the 20-100 MHz range. High volume batch-processing manufacturing is utilized, with package and resonator assembly at the wafer level. Unique design features include squeeze-film damping for robust vibration and shock performance, capacitive coupling through micro-machined diaphragms allowing resonator excitation at the package exterior, circuit integration and extremely small (0.1 in. square) dimensioning. A family of micro-miniature sensor beacons is also disclosed with widespread applications as bio-medical sensors, vehicle status monitors and high-volume animal identification and health sensors. The sensor family allows measurement of temperatures, chemicals, acceleration and pressure. A microphone and clock realization is also available.

  14. Micro Structures in Thin Coating Layers: Micro Structure Evolution and Macroscopic

    E-Print Network [OSTI]

    Rumpf, Martin

    Micro Structures in Thin Coating Layers: Micro Structure Evolution and Macroscopic Contact Angle J structures of coating surfaces lead to new industrial applications. They allow to steer the wetting the formation of micro structures in the drying process of a coating. Furthermore, for a given micro structured

  15. NanoEner Technologies | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPI Ventures Ltd Jump to: navigation, search59Naknek,C Jump to:NanoEner

  16. NanoeXa | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPI Ventures Ltd Jump to: navigation, search59Naknek,C JumpNanoeXa Jump to:

  17. Nano Design Works | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatialDevelopment of09Sponsor GuidelinesGlennNancy M. HaegelNano

  18. C3Nano, inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank, Maine:Kansas: Energy Resources Jump to:Energy Inc -6 -Energy22 -3 -Nano,

  19. A thermally self-sustained micro-power plant with integrated micro-solid oxide fuel cells, micro-reformer and functional

    E-Print Network [OSTI]

    Daraio, Chiara

    is successfully demonstrated. The micro-power plant consists of micro-SOFCs, a micro-reactor and a gas carrierA thermally self-sustained micro-power plant with integrated micro-solid oxide fuel cells, micro l i g h t s g r a p h i c a l a b s t r a c t The assembly and operation of a micro-power plant

  20. Tech Micro Services NIST Sponsored Workshop

    E-Print Network [OSTI]

    for a variety of diagnostic radiological , therapeutic , and experimental purposes. OSL nanoDots can be used, providing accurate, sensitive, and reliable dose estimates. (Landauer Inc is AALA accredited facility) #12

  1. Development of micro analytical devices

    E-Print Network [OSTI]

    Deshpande, Abhishek Girish

    2009-11-17

    be as small as few pico-litres, which is of particular interest in fine chemical industries where reagents are extremely expensive. Using small amounts will not only make the process economical but also reduce the amount of waste produced. • Low Reynolds... of reduced nicotinamide adenine dinucleotide (NADH) that is required for the conversion of pyruvate to L-lactate inside an electrochemical microreactor [33]. 1 . 3 .2.3 Separation Scaling separations by using micro-scale devices is yet another...

  2. Method of producing nano-scaled inorganic platelets

    DOE Patents [OSTI]

    Zhamu, Aruna; Jang, Bor Z.

    2012-11-13

    The present invention provides a method of exfoliating a layered material (e.g., transition metal dichalcogenide) to produce nano-scaled platelets having a thickness smaller than 100 nm, typically smaller than 10 nm. The method comprises (a) dispersing particles of a non-graphite laminar compound in a liquid medium containing therein a surfactant or dispersing agent to obtain a stable suspension or slurry; and (b) exposing the suspension or slurry to ultrasonic waves at an energy level for a sufficient length of time to produce separated nano-scaled platelets. The nano-scaled platelets are candidate reinforcement fillers for polymer nanocomposites.

  3. Bright X-ray source from a laser-driven micro-plasma-waveguide

    E-Print Network [OSTI]

    Yi, Longqing; Thanh, Phuc Luu; Shen, Baifei

    2015-01-01

    Bright tunable x-ray sources have a number of applications in basic science, medicine and industry. The most powerful sources are synchrotrons, where relativistic electrons are circling in giant storage rings. In parallel, compact laser-plasma x-ray sources are being developed. Owing to the rapid progress in laser technology, very high-contrast femtosecond laser pulses of relativistic intensities become available. These pulses allow for interaction with micro-structured solid-density plasma without destroying the structure by parasitic pre-pulses. The high-contrast laser pulses as well as the manufacturing of materials at micro- and nano-scales open a new realm of possibilities for laser interaction with photonic materials at the relativistic intensities. Here we demonstrate, via numerical simulations, that when coupling with a readily available 1.8 Joule laser, a micro-plasma-waveguide (MPW) may serve as a novel compact x-ray source. Electrons are extracted from the walls by the laser field and form a dense ...

  4. Fundamental limitations for quantum and nano thermodynamics

    E-Print Network [OSTI]

    Micha? Horodecki; Jonathan Oppenheim

    2014-10-25

    The relationship between thermodynamics and statistical physics is valid in the thermodynamic limit - when the number of particles becomes very large. Here, we study thermodynamics in the opposite regime - at both the nano scale, and when quantum effects become important. Applying results from quantum information theory we construct a theory of thermodynamics in these limits. We derive general criteria for thermodynamical state transformations, and as special cases, find two free energies: one that quantifies the deterministically extractable work from a small system in contact with a heat bath, and the other that quantifies the reverse process. We find that there are fundamental limitations on work extraction from nonequilibrium states, owing to finite size effects and quantum coherences. This implies that thermodynamical transitions are generically irreversible at this scale. As one application of these methods, we analyse the efficiency of small heat engines and find that they are irreversible during the adiabatic stages of the cycle.

  5. Nano-High: Lawrence Berkeley National Laboratory Lecture on Materials

    Broader source: Energy.gov [DOE]

    Nano-High, a program of the Lawrence Berkeley National Laboratory, is a series of free Saturday morning talks by internationally recognized leaders in scientific research. The talks are designed...

  6. Nano Research Kinetics of Molecular Recognition Mediated Nanoparticle

    E-Print Network [OSTI]

    Wikswo, John

    Nano Research Kinetics of Molecular Recognition Mediated Nanoparticle Self-Assembly Chinmay Soman1 using nanoparticle self-assembly mediated by molecular interactions, including polynucleotide Directed self-assembly of nanostructures into microstructures through intermolecular interactions

  7. A New Route to Nano Self-Assembly

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A New Route to Nano Self-Assembly Print If the promise of nanotechnology is to be fulfilled, nanoparticles will have to be able to make something of themselves. An important...

  8. A New Route to Nano Self-Assembly

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to Nano Self-Assembly Print Wednesday, 24 February 2010 00:00 If the promise of nanotechnology is to be fulfilled, nanoparticles will have to be able to make something of...

  9. Wear-Resistant, Nano-Composite Steel Coatings

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Wear-Resistant, Nano-Composite Steel Coatings Laser Processing Techniques Used for the Production of Wear-Resistant Steel Coatings from Iron-Based Glassy Powders Introduction Steel...

  10. Nano-scale scratching in chemical-mechanical polishing

    E-Print Network [OSTI]

    Eusner, Thor

    2008-01-01

    During the chemical-mechanical polishing (CMP) process, a critical step in the manufacture of ultra-large-scale integrated (ULSI) semiconductor devices, undesirable nano-scale scratches are formed on the surfaces being ...

  11. NREL: Awards and Honors - NanoCeram Nanoalumina Fiber

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of time. For bone tissue engineering, NanoCeram provides a strong fibrous material, molding a scaffolding to which bone-forming osteoblast cells can adhere and build. Trials...

  12. Near-field NanoThermoMechanical memory

    SciTech Connect (OSTI)

    Elzouka, Mahmoud; Ndao, Sidy

    2014-12-15

    In this letter, we introduce the concept of NanoThermoMechanical Memory. Unlike electronic memory, a NanoThermoMechanical memory device uses heat instead of electricity to record, store, and recover data. Memory function is achieved through the coupling of near-field thermal radiation and thermal expansion resulting in negative differential thermal resistance and thermal latching. Here, we demonstrate theoretically via numerical modeling the concept of near-field thermal radiation enabled negative differential thermal resistance that achieves bistable states. Design and implementation of a practical silicon based NanoThermoMechanical memory device are proposed along with a study of its dynamic response under write/read cycles. With more than 50% of the world's energy losses being in the form of heat along with the ever increasing need to develop computer technologies which can operate in harsh environments (e.g., very high temperatures), NanoThermoMechanical memory and logic devices may hold the answer.

  13. Adsorbed Polymer and NOM Limits Adhesion and Toxicity of Nano

    E-Print Network [OSTI]

    Alvarez, Pedro J.

    Adsorbed Polymer and NOM Limits Adhesion and Toxicity of Nano Scale Zerovalent Iron to E. coli Z H. Here we assess the effect that adsorbed synthetic polymers and natural organic matter

  14. In situ XAS Characterization of Catalytic Nano-Materials with...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    XAS Characterization of Catalytic Nano-Materials with Applications to Fuel Cells and Batteries Friday, July 12, 2013 - 11:00am SLAC, Conference Room 137-322 Presented by Qingying...

  15. Micro-unmanned aerodynamic vehicle

    DOE Patents [OSTI]

    Reuel, Nigel (Rio Rancho, NM); Lionberger, Troy A. (Ann Arbor, MI); Galambos, Paul C. (Albuquerque, NM); Okandan, Murat (Albuquerque, NM); Baker, Michael S. (Albuquerque, NM)

    2008-03-11

    A MEMS-based micro-unmanned vehicle includes at least a pair of wings having leading wing beams and trailing wing beams, at least two actuators, a leading actuator beam coupled to the leading wing beams, a trailing actuator beam coupled to the trailing wing beams, a vehicle body having a plurality of fulcrums pivotally securing the leading wing beams, the trailing wing beams, the leading actuator beam and the trailing actuator beam and having at least one anisotropically etched recess to accommodate a lever-fulcrum motion of the coupled beams, and a power source.

  16. Smart Microfabricated Preconcentrator (and Other Micro Analytical...

    Office of Scientific and Technical Information (OSTI)

    Smart Microfabricated Preconcentrator (and Other Micro Analytical Detection Components&Systems). Citation Details In-Document Search Title: Smart Microfabricated Preconcentrator...

  17. THE POTENTIAL FOR MICRO-ALGAE AND OTHER "MICRO-CROPS" TO PRODUCE

    E-Print Network [OSTI]

    Edwards, Paul N.

    THE POTENTIAL FOR MICRO-ALGAE AND OTHER "MICRO-CROPS" TO PRODUCE SUSTAINABLE BIOFUELS A REVIEW INTRODUCTION Biofuel derived from algae and other micro-crops has been proposed as an environmentally benign transportation fuel. Algae can be cultivated on low productivity lands using low quality water. Interest in algae

  18. Supramolecular NanoStamping (SuNS) : fabricating nano/bio devices using DNA as a movable type

    E-Print Network [OSTI]

    Yu, Arum Amy

    2007-01-01

    When a useful device is developed, it always requires a mass-production technique to industrialize it. In the era of nano/biotechnology, the development of printing techniques has not followed the speed of the inventions ...

  19. Elemental imaging of organic matter and associated metals in ore deposits using micro PIXE and micro-EBS

    E-Print Network [OSTI]

    Devernal, Anne

    Elemental imaging of organic matter and associated metals in ore deposits using micro PIXE Uranium Witwatersrand a b s t r a c t Micro-PIXE and micro-EBS analyses were carried out on samples from of organic matter in the formation of this deposit. Micro-PIXE and Micro-EBS shows a very complex metal

  20. Micro Laser Personal Projector Wilfrido Sierra Hernandez

    E-Print Network [OSTI]

    Bove Jr., V. Michael

    Micro Laser Personal Projector by Wilfrido Sierra Hern´andez Submitted to the Program in Media Arts by . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrew B. Lippman Chairman, Department Committee on Graduate Students #12;2 #12;Micro Laser Personal Laser Personal Projector by Wilfrido Sierra Hern´andez Submitted to the Program in Media Arts

  1. Laser MicroChemical Shaping of Silicon

    E-Print Network [OSTI]

    Burns, Michael J.

    Laser MicroChemical Shaping of Silicon MURI Workshop Feb 28, 2005 Michael J. Burns, Ph.D. LMC Product Manager #12;FEI Copyright © 2005 Vectra LMC 9900 2 Laser Micro Chemical (LMC) ·Use of laser light to induce local chemical reactions. ·Both Laser Chemical Etching (LCE) and Laser Chemical Deposition (LCD

  2. Micro Fuel Cells Direct Methanol Fuel Cells

    E-Print Network [OSTI]

    Micro Fuel Cells TM Direct Methanol Fuel Cells for Portable Power A Fuel Cell System Developer-17, 2002 Phoenix, Arizona #12;Micro Fuel Cells Direct Methanol Fuel Cells for Portable Power Outline (1 Energy Content (Wh) Volume(cm^3) Li-Ion Battery DMFC #12;Direct Methanol Fuel Cell Technology

  3. Formation of surface nano-structures by plasma expansion induced by highly charged ions

    SciTech Connect (OSTI)

    Moslem, W. M.; El-Said, A. S.

    2012-12-15

    Slow highly charged ions (HCIs) create surface nano-structures (nano-hillocks) on the quartz surface. The formation of hillocks was only possible by surpassing a potential energy threshold. By using the plasma expansion approach with suitable hydrodynamic equations, the creation mechanism of the nano-hillocks induced by HCIs is explained. Numerical analysis reveal that within the nanoscale created plasma region, the increase of the temperature causes an increase of the self-similar solution validity domain, and consequently the surface nano-hillocks become taller. Furthermore, the presence of the negative (positive) nano-dust particles would lead to increase (decrease) the nano-hillocks height.

  4. The MicroBooNE Technical Design Report

    E-Print Network [OSTI]

    McDonald, Kirk

    ................................................................................................................20 3 Design Criteria and Parameter TablesThe MicroBooNE Technical Design Report The MicroBooNE Collaboration 2/24/2012 #12;The Micro

  5. Hybrid Micro-Electro-Mechanical Systems for Highly Reliable and Selective Characterization of Tank Waste

    SciTech Connect (OSTI)

    Datskos, Panos G.; Sepaniak, Michael J.

    2004-06-01

    Our multifaceted research program is aimed at the fundamental and practical development of hybrid micro-electro-mechanical-systems (MEMS) that integrates several elements of chemical selectivity and sensor function. We are developing MEMS sensors that combine chemimechanical transduction, and surface enhanced Raman spectroscopy (SERS) and radiation detection. One of our goals is to develop highly effective methods of immobilizing a wide variety of molecular and ionic recognition phases onto micromechanical surfaces. We have introduced fundamentally new modes of adsorbate-induced surface stress through nano-structuring of microcantilever surfaces; the responsivity for has increased by over two-orders of magnitude over previously existing technological approaches. Noble metal nanostructures similar to those that enhance chemi-mechanical transduction exhibit substantial Raman enhancement factors.

  6. Compact Modeling of Threshold Voltage in Nanoscale Strained-Si/SiGe MOSFETs Nano Science and Technology Institute Home | Subscribe | Site Map

    E-Print Network [OSTI]

    Kumar, M. Jagadesh

    Cleantech 2007 q CD Set Special Offer nanoPRwireTM News Headlines q Breaking News q Nanotech Week © Nano

  7. NanoComposite Stainless Steel Powder Technologies

    SciTech Connect (OSTI)

    DeHoff, R.; Glasgow, C. (MesoCoat, Inc.)

    2012-07-25

    Oak Ridge National Laboratory has been investigating a new class of Fe-based amorphous material stemming from a DARPA, Defense Advanced Research Projects Agency initiative in structural amorphous metals. Further engineering of the original SAM materials such as chemistry modifications and manufacturing processes, has led to the development of a class of Fe based amorphous materials that upon processing, devitrify into a nearly homogeneous distribution of nano sized complex metal carbides and borides. The powder material is produced through the gas atomization process and subsequently utilized by several methods; laser fusing as a coating to existing components or bulk consolidated into new components through various powder metallurgy techniques (vacuum hot pressing, Dynaforge, and hot isostatic pressing). The unique fine scale distribution of microstructural features yields a material with high hardness and wear resistance compared to material produced through conventional processing techniques such as casting while maintaining adequate fracture toughness. Several compositions have been examined including those specifically designed for high hardness and wear resistance and a composition specifically tailored to devitrify into an austenitic matrix (similar to a stainless steel) which poses improved corrosion behavior.

  8. Micro-tensile testing system

    DOE Patents [OSTI]

    Wenski, Edward G.

    2006-01-10

    A micro-tensile testing system providing a stand-alone test platform for testing and reporting physical or engineering properties of test samples of materials having thicknesses of approximately between 0.002 inch and 0.030 inch, including, for example, LiGA engineered materials. The testing system is able to perform a variety of static, dynamic, and cyclic tests. The testing system includes a rigid frame and adjustable gripping supports to minimize measurement errors due to deflection or bending under load; serrated grips for securing the extremely small test sample; high-speed laser scan micrometers for obtaining accurate results; and test software for controlling the testing procedure and reporting results.

  9. Micro-tensile testing system

    DOE Patents [OSTI]

    Wenski, Edward G. (Lenexa, KS)

    2007-07-17

    A micro-tensile testing system providing a stand-alone test platform for testing and reporting physical or engineering properties of test samples of materials having thicknesses of approximately between 0.002 inch and 0.030 inch, including, for example, LiGA engineered materials. The testing system is able to perform a variety of static, dynamic, and cyclic tests. The testing system includes a rigid frame and adjustable gripping supports to minimize measurement errors due to deflection or bending under load; serrated grips for securing the extremely small test sample; high-speed laser scan micrometers for obtaining accurate results; and test software for controlling the testing procedure and reporting results.

  10. Micro-tensile testing system

    DOE Patents [OSTI]

    Wenski, Edward G. (Lenexa, KS)

    2007-08-21

    A micro-tensile testing system providing a stand-alone test platform for testing and reporting physical or engineering properties of test samples of materials having thicknesses of approximately between 0.002 inch and 0.030 inch, including, for example, LiGA engineered materials. The testing system is able to perform a variety of static, dynamic, and cyclic tests. The testing system includes a rigid frame and adjustable gripping supports to minimize measurement errors due to deflection or bending under load; serrated grips for securing the extremely small test sample; high-speed laser scan micrometers for obtaining accurate results; and test software for controlling the testing procedure and reporting results.

  11. Investigation of Micro- and Macro-Scale Transport Processes for...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Micro- and Macro-Scale Transport Processes for Improved Fuel Cell Performance Investigation of Micro- and Macro-Scale Transport Processes for Improved Fuel Cell Performance These...

  12. Micro-Earthquake At Roosevelt Hot Springs Geothermal Area (Zandt...

    Open Energy Info (EERE)

    Micro-Earthquake At Roosevelt Hot Springs Geothermal Area (Zandt, Et Al., 1982) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake...

  13. Characterizing Fractures in the Geysers Geothermal Field by Micro...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Geothermal Field by Micro-seismic Data, Using Soft Computing, Fractals, and Shear Wave Anisotropy Characterizing Fractures in the Geysers Geothermal Field by Micro-seismic...

  14. SUB-MICRO-GRAVITY CAPACITIVE SOI MICROACCELEROMETERS B. Vakili Amini, R. Abdolvand, and F. Ayazi

    E-Print Network [OSTI]

    Ayazi, Farrokh

    high sensitivity (>15pF/g) is presented. The accelerometers are fabricated in thick (>100µm) silicon-on-insulator (SOI) substrates using a 2-mask fully-dry-release process that provides large seismic mass (>10milli sensitivity to its mechanical noise floor, is improved by increasing the solid seismic mass through saving

  15. Wear-Resistant NanoCompositeStainless Steel Coatings and Bits...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Wear-Resistant NanoCompositeStainless Steel Coatings and Bits Wear-Resistant NanoCompositeStainless Steel Coatings and Bits Project objective: To develop ultra-hard and wear...

  16. Formation of nano-crystalline todorokite from biogenic Mn Xiong Han Feng a,1

    E-Print Network [OSTI]

    Sparks, Donald L.

    Formation of nano-crystalline todorokite from biogenic Mn oxides Xiong Han Feng a,1 , Mengqiang Zhu oxides in the environment. Additionally this method may be a viable biosynthesis route for porous, nano-crystalline

  17. Nano scale devices for plasmonic nanolithography and rapid sensing of bacteria 

    E-Print Network [OSTI]

    Seo, Sungkyu

    2009-05-15

    This dissertation contains two different research topics. One is a ‘Nano Scale Device for Plasmonic Nanolithography – Optical Antenna’ and the other is a ‘Nano Scale Device for Rapid Sensing of Bacteria – SEPTIC’. Since these two different research...

  18. A Three-Dimensional Carbon Nano-Network for High Performance...

    Office of Scientific and Technical Information (OSTI)

    A Three-Dimensional Carbon Nano-Network for High Performance Lithium Ion Batteries. Citation Details In-Document Search Title: A Three-Dimensional Carbon Nano-Network for High...

  19. An experimental study of external reactor vessel cooling strategy on the critical heat flux using the graphene oxide nano-fluid

    SciTech Connect (OSTI)

    Park, S. D.; Lee, S. W.; Kang, S.; Kim, S. M.; Seo, H.; Bang, I. C.

    2012-07-01

    External reactor vessel cooling (ERVC) for in-vessel retention (IVR) of corium as a key severe accident management strategy can be achieved by flooding the reactor cavity during a severe accident. In this accident mitigation strategy, the decay heat removal capability depends on whether the imposed heat flux exceeds critical heat flux (CHF). To provide sufficient cooling for high-power reactors such as APR1400, there have been some R and D efforts to use the reactor vessel with micro-porous coating and nano-fluids boiling-induced coating. The dispersion stability of graphene-oxide nano-fluid in the chemical conditions of flooding water that includes boric acid, lithium hydroxide (LiOH) and tri-sodium phosphate (TSP) was checked in terms of surface charge or zeta potential before the CHF experiments. Results showed that graphene-oxide nano-fluids were very stable under ERVC environment. The critical heat flux (CHF) on the reactor vessel external wall was measured using the small scale two-dimensional slide test section. The radius of the curvature is 0.1 m. The dimension of each part in the facility simulated the APR-1400. The heater was designed to produce the different heat flux. The magnitude of heat flux follows the one of the APR-1400 when the severe accident occurred. All tests were conducted under inlet subcooling 10 K. Graphene-oxide nano-fluids (concentration: 10 -4 V%) enhanced CHF limits up to about 20% at mass flux 50 kg/m{sup 2}s and 100 kg/m{sup 2}s in comparison with the results of the distilled water at same test condition. (authors)

  20. Micro-sonicator for spore lysis

    DOE Patents [OSTI]

    Miles, Robin R. (Livermore, CA); Belgrader, Phillip (Manteca, CA); Nasarabadi, Shanavaz L. (Livermore, CA)

    2000-01-01

    A micro-sonicator for spore lysis. Using micromachining technology, the micro-sonicator uses ultrasonic excitation of spores to perform spore and cell lysis. The micro-sonicator comprises a container with a cavity therein for retaining the sample in an ultrasonic transmission medium, the cavity being closed by a silicon membrane to which an electrode and piezoelectric material are attached, with the electrode and piezoelectric material being electrically connected to an AC signal generator which causes the membrane to flex and vibrate at the frequency of the applied voltage.

  1. Chemical imaging of biological materials by NanoSIMS

    SciTech Connect (OSTI)

    Weber, P K; Smith, J B; Hutcheon, I D; Shmakov, A; Rybitskaya, I; Curran, H

    2004-08-23

    The NanoSIMS 50 represents the state -of-the-art for in situ microanalysis for secondary ion mass spectrometry (SIMS), combining unprecedented spatial resolution (as good as 50 nm) with ultra-high sensitivity (MDL of 200 atoms). The NanoSIMS incorporates an array of detectors, enabling simultaneous collection of 5 elements or isotopes originating from the same sputtered volume of a sample. The primary ion beam (Cs{sup +} or O{sup -}) can be scanned across the sample to produce quantitative secondary ion images. This capability for multiple isotope imaging with high spatial resolution is unique to the NanoSIMS and provides a novel new approach to the study of the distribution of elements in biological materials. We have applied this technique extensively to mammalian cells and bacterial spores. Results from these studies and critical analytical issues such as sample preparation, instrument tuning, and data processing will be discussed.

  2. Nonlinear viscoelastic dynamics of nano-confined water

    E-Print Network [OSTI]

    Tai-De Li; Elisa Riedo

    2007-07-17

    The viscoelastic dynamics of nano-confined water is studied by means of atomic force microscopy (AFM). We observe a nonlinear viscoelastic behavior remarkably similar to that widely observed in metastable complex fluids. We show that the origin of the measured nonlinear viscoelasticity in nano-confined water is a strain rate dependent relaxation time and slow dynamics. By measuring the viscoelastic modulus at different frequencies and strains, we find that the intrinsic relaxation time of nano-confined water is in the range 0.1-0.0001 s, orders of magnitude longer than that of bulk water, and comparable to the dielectric relaxation time measured in supercooled water at 170-210 K.

  3. The All Terrain Bio nano Gear for Space Radiation Detection System

    E-Print Network [OSTI]

    Mavroidis, Constantinos

    The All Terrain Bio nano Gear for Space Radiation Detection System Ajay Ummat, Constantinos in real-time while an astronaut is in the mission. All Terrain Bio-nano (ATB) gear system is one the current or any other future space suits. The proposed All Terrain Bio nano (ATB) gear is one such concept

  4. Nanoconstriction-based spin-Hall nano-oscillator

    SciTech Connect (OSTI)

    Demidov, V. E.; Urazhdin, S.; Zholud, A.; Sadovnikov, A. V.; Demokritov, S. O.

    2014-10-27

    We experimentally demonstrate magnetic nano-oscillators driven by pure spin current produced by the spin Hall effect in a bow tie-shaped nanoconstriction. These devices exhibit single-mode auto-oscillation and generate highly-coherent electronic microwave signals with a significant power and the spectral linewidth as low as 6.2?MHz at room temperature. The proposed simple and flexible device geometry is amenable to straightforward implementation of advanced spintronic structures such as chains of mutually coupled spin-Hall nano-oscillators.

  5. Method for nano-pumping using carbon nanotubes

    DOE Patents [OSTI]

    Insepov, Zeke (Darien, IL); Hassanein, Ahmed (Bolingbrook, IL)

    2009-12-15

    The present invention relates generally to the field of nanotechnology, carbon nanotubes and, more specifically, to a method and system for nano-pumping media through carbon nanotubes. One preferred embodiment of the invention generally comprises: method for nano-pumping, comprising the following steps: providing one or more media; providing one or more carbon nanotubes, the one or more nanotubes having a first end and a second end, wherein said first end of one or more nanotubes is in contact with the media; and creating surface waves on the carbon nanotubes, wherein at least a portion of the media is pumped through the nanotube.

  6. Mechanical, Electrical, and Environmental Evaluation of Nano-Miniature Connectors

    SciTech Connect (OSTI)

    Hilton, J.W.

    2001-07-30

    Because of their small size (0.025-inch spacing), nano-miniature connectors have been chosen for JTA telemetry applications. At the time they were chosen, extensive testing had not been done to determine the mechanical, electrical, and environmental characteristics of these connectors at the levels required for use by weapon systems. Since nano-miniature connectors use some unique plating and wire crimping processes not used in most design agency connectors, it was decided that these properties should be tested thoroughly. This report describes the results of that testing.

  7. NanoMas Technologies Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPI Ventures Ltd Jump to: navigation, search59Naknek,C Jump to:NanoEnerNanoMas

  8. Printed electronics and micro-electromechanical systems

    E-Print Network [OSTI]

    Wilhelm, Eric Jamesson, 1977-

    2004-01-01

    Current electronics and micro-electromechanical systems (MEMS) manufacture is optimized for the production of very high-volume parts on a limited range of substrates. These processes are long, consume large amounts of ...

  9. Numerical simulation of electrokinetically driven micro flows 

    E-Print Network [OSTI]

    Hahm, Jungyoon

    2005-11-01

    are systematically studied. As a first application, flow and species transport control in a grooved micro-channel using local electrokinetic forces are studied. Locally applied electric fields, zeta potential patterned grooved surfaces, and geometry are manipulated...

  10. Dropwise Condensation on Micro- and Nanostructured Surfaces

    E-Print Network [OSTI]

    Miljkovic, Nenad

    In this review we cover recent developments in the area of surface- enhanced dropwise condensation against the background of earlier work. The development of fabrication techniques to create surface structures at the micro- ...

  11. Micro benchtop optics by bulk silicon micromachining

    DOE Patents [OSTI]

    Lee, Abraham P. (Walnut Creek, CA); Pocha, Michael D. (Livermore, CA); McConaghy, Charles F. (Livermore, CA); Deri, Robert J. (Pleasanton, CA)

    2000-01-01

    Micromachining of bulk silicon utilizing the parallel etching characteristics of bulk silicon and integrating the parallel etch planes of silicon with silicon wafer bonding and impurity doping, enables the fabrication of on-chip optics with in situ aligned etched grooves for optical fibers, micro-lenses, photodiodes, and laser diodes. Other optical components that can be microfabricated and integrated include semi-transparent beam splitters, micro-optical scanners, pinholes, optical gratings, micro-optical filters, etc. Micromachining of bulk silicon utilizing the parallel etching characteristics thereof can be utilized to develop miniaturization of bio-instrumentation such as wavelength monitoring by fluorescence spectrometers, and other miniaturized optical systems such as Fabry-Perot interferometry for filtering of wavelengths, tunable cavity lasers, micro-holography modules, and wavelength splitters for optical communication systems.

  12. Evolutionary analysis of animal microRNAs

    E-Print Network [OSTI]

    Guerra Martins dos Santos Assunçăo, José Afonso

    2013-01-08

    In recent years, microRNAs (miRNAs) have been recognised as important genetic regulators of gene expression in Animals and Plants. They can potentially target a large fraction of the cellular transcriptome, having been shown to be important...

  13. Diet, MicroRNAs and Prostate Cancer

    E-Print Network [OSTI]

    Saini, Sharanjot; Majid, Shahana; Dahiya, Rajvir

    2010-01-01

    deregulation in human cancer. Cell Cycle. 2008;7:2643–6. 25.genomic regions involved in cancers. Proc Natl Acad Sci USA.A, Jacks T. MicroRNAs and cancer: short RNAs go a long way.

  14. Automated micro-tracking planar solar concentrators

    E-Print Network [OSTI]

    Hallas, Justin Matthew

    2011-01-01

    PV cell behind each lens tracking the sun with only lateralclimbing required for tracking the sun, and experimentalin a fixed frame tracking the sun with only micro-tracking.

  15. Micro windmills to recharge your mobile phone

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    interest from Taiwanese Oven Fresh Latest Updates Downloads Become a member, today! Login with Facebook or installed anywhere,41yrs Small MILL-Lathe-Drill Solar Water Well Pumps Siemens Wind Energy Page 3 of 4Micro

  16. Heuristic Algorithm for Coordinating Smart Houses in MicroGrid.

    E-Print Network [OSTI]

    Zito, Michele

    Heuristic Algorithm for Coordinating Smart Houses in MicroGrid. Mohamed Arikiez 1 , Floriana Grasso connected in a micro- grid configuration. The micro-grid consists of houses and local renewable plants, each, power generation, and smart appliances [4]. Smart micro-grids [5] can be defined as a set of houses

  17. Micro-blogging as Online Word of Mouth Branding

    E-Print Network [OSTI]

    Jansen, James

    Micro-blogging as Online Word of Mouth Branding Abstract In this paper, we report research results investigating micro-blogging as a form of online word of mouth branding. We analyzed 149,472 micro-blog postings containing branding comments, sentiments, and opinions. We investigated the overall structure of these micro-blog

  18. Micro Windmills to Recharge Cell Leave a reply

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    Micro Windmills to Recharge Cell Phones Leave a reply The Windmill in Action At the University of Texas Arlington, scientists J.C. Chiao and Smitha Rao have developed micro-windmills which recharge Page 1 of 2Micro Windmills to Recharge Cell Phones | MADE 2/3/2014http://themadeblog.com/micro-windmills

  19. Micro Chemical Vapor Deposition for the Synthesis of Nanomaterials

    E-Print Network [OSTI]

    Zhou, Qin

    2011-01-01

    including flexible electronics. In the application toet al. , "Flexible nanotube electronics," Nano Letters, vol.Electronics Based on Transfer Printed Aligned Carbon Nanotubes on Rigid and Flexible

  20. MicroBooNE Detector Move

    ScienceCinema (OSTI)

    Flemming, Bonnie; Rameika, Gina

    2014-07-15

    On Monday, June 23, 2014 the MicroBooNE detector -- a 30-ton vessel that will be used to study ghostly particles called neutrinos -- was transported three miles across the Fermilab site and gently lowered into the laboratory's Liquid-Argon Test Facility. This video documents that move, some taken with time-lapse camerad, and shows the process of getting the MicroBooNE detector to its new home.

  1. Nano-optomechanical resonators in microfluidics

    E-Print Network [OSTI]

    Fong, King Yan; Tang, Hong X

    2015-01-01

    Operation of nanomechanical devices in water environment has been challenging due to the strong viscous damping that greatly impedes the mechanical motion. Here we demonstrate an optomechanical micro-wheel resonator integrated in microfluidic system that supports low-loss optical resonances at near-visible wavelength with quality factor up to 1.5 million. The device can be operated in self-oscillation mode in air with low threshold power of 45 uW. The very high optical Q allows the observation of the thermal Brownian motion of the mechanical mode in both air and water environment with high signal-to-background ratio. A numerical model is developed to calculate the hydrodynamic effect on the device due to the surrounding water, which agrees well with the experimental results. With its very high resonance frequency (170 MHz) and small loaded mass (75 pg), the present device is estimated to have mass sensitivity of attogram level in liquid environment with bandwidth of 1 Hz.

  2. 1/17/2014 micro-windmills | Layman's Terms Media http://laymanstermsmedia.com/tag/micro-windmills/ 1/3

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    1/17/2014 micro-windmills | Layman's Terms Media http://laymanstermsmedia.com/tag/micro-windmills/ 1/3 (http://laymanstermsmediadotcom.files.wordpress.com/2014/01/67108_web.jpg) A micro-windmill is pictured on the face of a penny. Photo courtesy of UT Arlington Tag Archives: micro-windmills New device

  3. Advanced Micro Turbine System (AMTS) -C200 Micro Turbine -Ultra-Low Emissions Micro Turbine

    SciTech Connect (OSTI)

    Capstone Turbine Corporation

    2007-12-31

    In September 2000 Capstone Turbine Corporation commenced work on a US Department of Energy contract to develop and improve advanced microturbines for power generation with high electrical efficiency and reduced pollutants. The Advanced MicroTurbine System (AMTS) program focused on: (1) The development and implementation of technology for a 200 kWe scale high efficiency microturbine system (2) The development and implementation of a 65 kWe microturbine which meets California Air Resources Board (CARB) emissions standards effective in 2007. Both of these objectives were achieved in the course of the AMTS program. At its conclusion prototype C200 Microturbines had been designed, assembled and successfully completed field demonstration. C65 Microturbines operating on natural, digester and landfill gas were also developed and successfully tested to demonstrate compliance with CARB 2007 Fossil Fuel Emissions Standards for NOx, CO and VOC emissions. The C65 Microturbine subsequently received approval from CARB under Executive Order DG-018 and was approved for sale in California. The United Technologies Research Center worked in parallel to successfully execute a RD&D program to demonstrate the viability of a low emissions AMS which integrated a high-performing microturbine with Organic Rankine Cycle systems. These results are documented in AMS Final Report DOE/CH/11060-1 dated March 26, 2007.

  4. Suitability of boron-nitride single-walled nanotubes as fluid-flow conduits in nano-valve applications

    E-Print Network [OSTI]

    Grujicic, Mica

    Suitability of boron-nitride single-walled nanotubes as fluid-flow conduits in nano-valve the suitability of boron-nitride single-walled nanotubes (SWNTs) as fluid- flow conduits in the nano-valve reserved. doi:10.1016/j.apsusc.2004.11.007 #12;control nano-valve based on a silicon nano-beam actuator

  5. Mask Making in the NanoLab (Optical Pattern Generator)

    E-Print Network [OSTI]

    California at Irvine, University of

    design or arcs. Pattern Generator charge: $40.80/hour. There is a minimum 30 minute pattern generatorMask Making in the NanoLab (Optical Pattern Generator) Layout To submit a design, use any CAD software which generates a GDS, TDB or CIF file. GDS and TDB files need to be converted for the pattern

  6. Superconducting Wires Enabled by Nanodots wins Nano50TM Award

    E-Print Network [OSTI]

    includes nanoscale columns of non-superconducting material embedded within the superconductorSuperconducting Wires Enabled by Nanodots wins Nano50TM Award HTS Wires Enabled via 3D Self-Assembly of Insulating Nanodots Background · For most large-scale applications of high-temperature superconducting (HTS

  7. Polymer Communication Fibers from polypropylene/nano carbon ber composites

    E-Print Network [OSTI]

    Srinivasarao, Mohan

    unique properties [1], they have been produced in limited quantities to date and are expensive. Vapor natural gas or coal as feedstock [2,3]. Nano carbon ®bers have typical diameters of 50±200 nm, inner previously demonstrated to increase physi- cal properties of the matrix materials. Such studies include pitch

  8. Minimum Energy Coding for Wireless NanoSensor Networks

    E-Print Network [OSTI]

    Shihada, Basem

    Minimum Energy Coding for Wireless NanoSensor Networks Murat Kocaoglu Ozgur B. Akan Next-generation nodes. With their extremely small size, nanosensor nodes can only provide limited energy. Hence, power for their realization. Authors in [1] provide a detailed survey on the state-of-the-art in nanosensors and emphasize

  9. NANO-SCALE CALORIMETRY OF ISOLATED POLYETHYLENE SINGLE CRYSTALS

    E-Print Network [OSTI]

    Allen, Leslie H.

    #12;NANO-SCALE CALORIMETRY OF ISOLATED POLYETHYLENE SINGLE CRYSTALS BY ALEX TAN KWAN B.S., Stanford) device, the nanocalorimeter, it was possible to investigate the melting of isolated polyethylene (PE, a simple Ni-foil calorimeter, to measure the heat capacity of a thin polyethylene film to verify

  10. NANO REVIEW Enhancing Solar Cell Efficiencies through 1-D Nanostructures

    E-Print Network [OSTI]

    Chen, Junhong

    energy is not occurring due to the high cost and inadequate efficiencies of existing solar cells of solar energy is the high cost and inadequate efficiencies of existing solar cells. InnovationsNANO REVIEW Enhancing Solar Cell Efficiencies through 1-D Nanostructures Kehan Yu Ć Junhong Chen

  11. "Interdisciplinary research on nano-enabled and bioinspired materials

    E-Print Network [OSTI]

    Zhigilei, Leonid V.

    energy systems, surface engineering, biological and bio-inspired systems and devices, biomaterials, nano/biomechanics, and mechanics and tribology in nuclear and/or turbine energy systems. The laboratory has been heavily sponsored Research Fund, Intel, GE Energy, GE-Hitachi Nuclear Energy, General Motors Cooperation, and Westinghouse

  12. NANO-SCALE MATERIALS DEVELOPMENT FOR FUTURE MAGNETIC APPLICATIONSp

    E-Print Network [OSTI]

    Laughlin, David E.

    evolution, it is clear that development of new materials and their understanding on a smaller and smaller in the development of new mag- netic materials for a variety of important appli- cations [2±5]. In recent yearsNANO-SCALE MATERIALS DEVELOPMENT FOR FUTURE MAGNETIC APPLICATIONSp M. E. McHENRY and D. E. LAUGHLIN

  13. Adaptive subwavelength control of nano-optical Martin Aeschlimann1

    E-Print Network [OSTI]

    Aeschlimann, Martin

    LETTERS Adaptive subwavelength control of nano-optical fields Martin Aeschlimann1 , Michael Bauer2 , Christian Spindler3 & Felix Steeb1 Adaptive shaping of the phase and amplitude of femtosecond laser pulses to approximately half the wavelength of the light field (that is, several hundred nanometres). Theory has indicated

  14. Hosts: Sponsors: NorTex Nano Summit: Agenda

    E-Print Network [OSTI]

    Ayhan Deputy Minister, Norwegian Ministry of Trade, Industry and Fisheries Nanotechnology for the Oil University Technology Commercialization Tom Kraft Director of Technology Ventures Development Rice Alliance and Communications, NTNU Pawel Sikorski Professor of Physics, NTNU Nano Energy 1 ­ Oil & Gas Session Chairs: Mc

  15. Information Nano-Technologies: Transition from Classical to Quantum

    E-Print Network [OSTI]

    Alexander Yu. Vlasov

    2009-12-04

    In this presentation are discussed some problems, relevant with application of information technologies in nano-scale systems and devices. Some methods already developed in quantum information technologies may be very useful here. Here are considered two illustrative models: representation of data by quantum bits and transfer of signals in quantum wires.

  16. SYLLABUS FINDING NANO 2015 DISCOVERING NANOTECHNOLOGY AND CULTURE IN GERMANY

    E-Print Network [OSTI]

    : Nanophysics and Nanotechnology: An Introduction to Modern Concepts in Nanoscience, 2nd ed., Wiley-VCH, 2006SCI Course title: NanoSCI - Electronic Properties of Nanoengineered Materials Catalog description: Physics. John H. Davies: The Physics of Low Dimensional Semiconductors: An Introduction, Cambridge University

  17. NANO EXPRESS Fabrication of Large Area Periodic Nanostructures Using

    E-Print Network [OSTI]

    Mohseni, Hooman

    , such as photonic band-gap materials, high dense data storage, and photonic devices. We have developed a maskless areas, such as photonic band-gap materials [1], high dense data storage [2], and photonic devices [3NANO EXPRESS Fabrication of Large Area Periodic Nanostructures Using Nanosphere Photolithography

  18. Impact of morphology and scale on the physical properties of periodic/quasiperiodic micro- and nano- structures

    E-Print Network [OSTI]

    Jia, Lin, Ph. D. Massachusetts Institute of Technology

    2012-01-01

    A central pillar of real-world engineering is controlled molding of different types of waves (such as optical and acoustic waves). The impact of these wave-molding devices is directly dependent on the level of wave control ...

  19. Interlaminar Fracture Toughness of Laminated Woven Composites Reinforced with Aligned Nanoscale Fibers: Mechanisms at the Macro, Micro, and Nano Scales

    E-Print Network [OSTI]

    Wicks, Sunny S.

    Several hybrid architectures with aligned nanoscale fibers have been shown to provide inter- and intra-laminar reinforcement of fiber reinforced polymer composites. In one architecture, aligned carbon nanotubes (CNTs) grown ...

  20. Phase control in the synthesis of yttrium oxide nano and micro-particles by flame spray pyrolysis 

    E-Print Network [OSTI]

    Mukundan, Mallika

    2009-05-15

    The project synthesizes phase pure Yttria particles using flame spray pyrolysis, and to experimentally determines the effect of various process parameters like residence time, adiabatic flame temperature and precursor droplet size on the phase...

  1. Thermoelectric properties of nano-meso-micro ?-MnO? powders as a function of electrical resistance

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Hedden, Morgan; Francis, Nick; Haraldsen, Jason T.; Ahmed, Towfiq; Constantin, Costel

    2015-07-15

    Particle sizes of manganese oxide (?-MnO?) powders were modified by using a mortar and pestle ground method for period of times that varied between 15–60 min. Particle size versus ground time clearly shows the existence of a size-induced regime transition (i.e., regime I and II). Thermoelectric properties of ?-MnO? powders as a function of electrical resistance in the range of RP = 10 - 80? were measured. Based on the data presented, we propose a model for the ?-MnO? system in which nanometer-scale MnO? crystallites bond together through weak van der Waals forces to form larger conglomerates that span inmore »size from nanometer to micrometer scale.« less

  2. Thermoelectric properties of nano-meso-micro ?-MnO? powders as a function of electrical resistance

    SciTech Connect (OSTI)

    Hedden, Morgan; Francis, Nick; Haraldsen, Jason T.; Ahmed, Towfiq; Constantin, Costel

    2015-07-15

    Particle sizes of manganese oxide (?-MnO?) powders were modified by using a mortar and pestle ground method for period of times that varied between 15–60 min. Particle size versus ground time clearly shows the existence of a size-induced regime transition (i.e., regime I and II). Thermoelectric properties of ?-MnO? powders as a function of electrical resistance in the range of RP = 10 - 80? were measured. Based on the data presented, we propose a model for the ?-MnO? system in which nanometer-scale MnO? crystallites bond together through weak van der Waals forces to form larger conglomerates that span in size from nanometer to micrometer scale.

  3. Nano-second UV laser processed micro-grooves on Ti6Al4V for biomedical applications

    E-Print Network [OSTI]

    Arnold, Craig B.

    .O. Soboyejo b,c, a Center for Energy Research & Development, Obafemi Awolowo University, Nigeria b Princeton

  4. Nano-to-Micro Scale Dynamics of P-Selectin Detachment from Leukocyte Interfaces. III. Numerical Simulation of Tethering

    E-Print Network [OSTI]

    Heinrich, Volkmar

    ) is responsible for a slow rolling motion of neutrophils across the luminal vessel surface that has been well, combining the mechanical properties of the leukocyte interface measured in probe tests with single molecule onto a glass substrate at low density, and then introduce leukocytes in the well-defined flow

  5. The Micro Craft iSTAR Micro Air Vehicle: Control System Design and Testing

    E-Print Network [OSTI]

    Rotkowitz, Michael C.

    The Micro Craft iSTAR Micro Air Vehicle: Control System Design and Testing Larry Lipera i 2000. This paper describes the vehicle, control system, and ground and flight-test results. Presented at the American Helicopter Society 57th Annual forum, Washington, DC, May 9-11, 2001. Copyright 2001

  6. Detailed balance in micro-and macrokinetics and micro-distinguishability of macro-processes

    E-Print Network [OSTI]

    Detailed balance in micro- and macrokinetics and micro-distinguishability of macro-processes A. N a general framework for the discussion of detailed balance and analyse its microscopic background. We find of detailed balance. Keywords: kinetic equation, random process, microreversibility, detailed balance

  7. Ion Beam Sputter Fabrication of Micro-Grooving and Micro-Threading Tools

    SciTech Connect (OSTI)

    ADAMS,DAVID P.; VASILE,M.J.; KRISHNAN,A.S.M.

    1999-11-05

    This paper presents techniques for fabricating microscopic, nonplanar features in a variety of materials. Micro-grooving and micro-threading tools having cutting dimensions of 10-30{micro}m are made by focused ion beam sputtering and used in ultra-precision machining. Tool fabrication involves directing a 20 keV gallium beam at polished cylindrical punches made of cobalt M42 high-speed steel or C2 tungsten carbide. This creates cutting edges having radii of curvature less than 0.4 {micro}m, and rake features similar to conventional lathe tools. Clearance for minimizing frictional drag of a tool results from the sputter yield dependence on ion herd target incidence angle. Numerically controlled, ultra-precision machining with micro-grooving tools results in a close matching between tool width and feature size. Microtools controllably machine 13 {micro}m wide, 4 {micro}m deep, helical grooves in polymethyl methacrylate and 6061-T6 Al cylindrical substrates. Micro-grooving tools also fabricate sinusoidal waveform features in polished metal substrates.

  8. Biological Micro-Electrical Mechanical Systems Micro-electrical mechanical systems (MEMS) created new

    E-Print Network [OSTI]

    Hill, Wendell T.

    Biological Micro-Electrical Mechanical Systems (bioMEMS) Micro-electrical mechanical systems (MEMS beginning to be explored. bioMEMS combine the potential of cell-sized systems with the advantages in cutting edge research in bioMEMS to revolutionize mechanized drug discovery processes, non- invasive

  9. Micro-Grooving and Micro-Threading Tools for Fabricating Curvilinear Features

    SciTech Connect (OSTI)

    ADAMS,DAVID P.; VASILE,MICHAEL J.; KRISHNAN,A.S.M.

    2000-07-24

    This paper presents techniques for fabricating microscopic, curvilinear features in a variety of workpiece materials. Micro-grooving and micro-threading tools having cutting widths as small as 13 {micro}m are made by focused ion beam sputtering and used for ultra-precision machining. Tool fabrication involves directing a 20 keV gallium beam at polished cylindrical punches made of cobalt M42 high-speed steel or C2 tungsten carbide to create a number of critically aligned facets. Sputtering produces rake facets of desired angle and cutting edges having radii of curvature equal to 0.4 {micro}m. Clearance for minimizing frictional drag of a tool results from a particular ion beam/target geometry that accounts for the sputter yield dependence on incidence angle. It is believed that geometrically specific cutting tools of this dimension have not been made previously. Numerically controlled, ultra-precision machining with micro-grooving tools results in a close match between tool width and feature size. Microtools are used to machine 13 {micro}m wide, 4 {micro}m deep, helical grooves in polymethyl methacrylate and 6061 Al cylindrical workplaces. Micro-grooving tools are also used to fabricate sinusoidal cross-section features in planar metal samples.

  10. Micro-fabrication Techniques for Target Components

    SciTech Connect (OSTI)

    Miles, R; Hamilton, J; Crawford, J; Ratti, S; Trevino, J; Graff, T; Stockton, C; Harvey, C

    2008-06-10

    Micro-fabrication techniques, derived from the semi-conductor industry, can be used to make a variety of useful mechanical components for targets. A selection of these components including supporting cooling arms for prototype cryogenic inertial confinement fusion targets, stepped and graded density targets for materials dynamics experiments are described. Micro-fabrication enables cost-effective, simultaneous fabrication of multiple high-precision components with complex geometries. Micro-fabrication techniques such as thin-film deposition, photo-lithographic patterning and etch processes normally used in the semi-conductor manufacture industry, can be exploited to make useful mechanical target components. Micro-fabrication processes have in recent years been used to create a number of micro-electro-mechanical systems (MEMS) components such as pressure sensors, accelerometers, ink jet printer heads, microfluidics platforms and the like. These techniques consist primarily of deposition of thin films of material, photo-lithographic patterning and etching processes performed sequentially to produce three dimensional structures using essentially planar processes. While the planar technology can be limiting in terms of the possible geometries of the final product, advantages of using these techniques include the ability to make multiple complex structures simultaneously and cost-effectively. Target components fabricated using these techniques include the supporting cooling arms for cryogenic prototype fusion ignition targets, stepped targets for equation-of-state experiments, and graded density reservoirs for material strength experiments.

  11. Methods for fabricating a micro heat barrier

    DOE Patents [OSTI]

    Marshall, Albert C.; Kravitz, Stanley H.; Tigges, Chris P.; Vawter, Gregory A.

    2004-01-06

    Methods for fabricating a highly effective, micron-scale micro heat barrier structure and process for manufacturing a micro heat barrier based on semiconductor and/or MEMS fabrication techniques. The micro heat barrier has an array of non-metallic, freestanding microsupports with a height less than 100 microns, attached to a substrate. An infrared reflective membrane (e.g., 1 micron gold) can be supported by the array of microsupports to provide radiation shielding. The micro heat barrier can be evacuated to eliminate gas phase heat conduction and convection. Semi-isotropic, reactive ion plasma etching can be used to create a microspike having a cusp-like shape with a sharp, pointed tip (<0.1 micron), to minimize the tip's contact area. A heat source can be placed directly on the microspikes. The micro heat barrier can have an apparent thermal conductivity in the range of 10.sup.-6 to 10.sup.-7 W/m-K. Multiple layers of reflective membranes can be used to increase thermal resistance.

  12. Development of Micromachined Probes for Bio-Nano Applications 

    E-Print Network [OSTI]

    Yapici, Murat K.

    2010-01-14

    and tested. Probes were developed under two major categories. The first category consists of Micro Electromagnetic Probes for biological applications such as single cell, particle, droplet manipulation and neuron stimulation applications; whereas the second...

  13. Controlling drop coalescence using nano-engineered surfaces

    E-Print Network [OSTI]

    Corral, Manuel, Jr

    2011-01-01

    The dynamics of drop coalescence are explored on micro-scale surface features for the first time. Drop coalescence is defined as a process by which two or more droplets, bubbles or particles merge during contact to form a ...

  14. Micro-machined thermo-conductivity detector

    DOE Patents [OSTI]

    Yu, Conrad (Antioch, CA)

    2003-01-01

    A micro-machined thermal conductivity detector for a portable gas chromatograph. The detector is highly sensitive and has fast response time to enable detection of the small size gas samples in a portable gas chromatograph which are in the order of nanoliters. The high sensitivity and fast response time are achieved through micro-machined devices composed of a nickel wire, for example, on a silicon nitride window formed in a silicon member and about a millimeter square in size. In addition to operating as a thermal conductivity detector, the silicon nitride window with a micro-machined wire therein of the device can be utilized for a fast response heater for PCR applications.

  15. Micro-CHP Systems for Residential Applications

    SciTech Connect (OSTI)

    Timothy DeValve; Benoit Olsommer

    2007-09-30

    Integrated micro-CHP (Cooling, Heating and Power) system solutions represent an opportunity to address all of the following requirements at once: conservation of scarce energy resources, moderation of pollutant release into our environment, and assured comfort for home-owners. The objective of this effort was to establish strategies for development, demonstration, and sustainable commercialization of cost-effective integrated CHP systems for residential applications. A unified approach to market and opportunity identification, technology assessment, specific system designs, adaptation to modular product platform component conceptual designs was employed. UTRC's recommendation to U.S. Department of Energy is to go ahead with the execution of the proposed product development and commercialization strategy plan under Phase II of this effort. Recent indicators show the emergence of micro-CHP. More than 12,000 micro-CHP systems have been sold worldwide so far, around 7,500 in 2004. Market projections predict a world-wide market growth over 35% per year. In 2004 the installations were mainly in Europe (73.5%) and in Japan (26.4%). The market in North-America is almost non-existent (0.1%). High energy consumption, high energy expenditure, large spark-spread (i.e., difference between electricity and fuel costs), big square footage, and high income are the key conditions for market acceptance. Today, these conditions are best found in the states of New York, Pennsylvania, New Jersey, Wisconsin, Illinois, Indiana, Michigan, Ohio, New England states. A multiple stage development plan is proposed to address risk mitigation. These stages include concept development and supplier engagement, component development, system integration, system demonstration, and field trials. A two stage commercialization strategy is suggested based on two product versions. The first version--a heat and power system named Micro-Cogen, provides the heat and essential electrical power to the homeowner. In its proposed embodiment, the system has a 2kW prime mover integrated to a furnace platform. The second version is a Micro-Trigen system with heating, cooling and power. It has the same Micro-Cogen platform integrated with a 14kW thermally activated chiller. A Stirling engine is suggested as a promising path for the prime mover. A LiBr absorption chiller is today's best technology in term of readiness level. Paybacks are acceptable for the Micro-Cogen version. However, there is no clear economically viable path for a Micro-Trigen version with today's available technology. This illustrates the importance of financial incentives to home owners in the initial stage of micro-CHP commercialization. It will help create the necessary conditions of volume demand to start transitioning to mass-production and cost reduction. Incentives to the manufacturers will help improve efficiency, enhance reliability, and lower cost, making micro-CHP products more attractive. Successful development of a micro-CHP system for residential applications has the potential to provide significant benefits to users, customers, manufacturers, and suppliers of such systems and, in general, to the nation as a whole. The benefits to the ultimate user are a comfortable and healthy home environment at an affordable cost, potential utility savings, and a reliable supply of energy. Manufacturers, component suppliers, and system integrators will see growth of a new market segment for integrated energy products. The benefits to the nation include significantly increased energy efficiency, reduced consumption of fossil fuels, pollutant and CO{sub 2} emissions from power generation, enhanced security from power interruptions as well as enhanced economic activity and job creation. An integrated micro-CHP energy system provides advantages over conventional power generation, since the energy is used more efficiently by means of efficient heat recovery. Foreign companies are readily selling products, mostly in Europe, and it is urgent to react promptly to these offerings that will soon emerge on the U.S

  16. Field Testing of Nano-PCM Enhanced Building Envelope Components

    SciTech Connect (OSTI)

    Biswas, Kaushik; Childs, Phillip W; Atchley, Jerald Allen

    2013-08-01

    The U.S. Department of Energy s (DOE) Building Technologies Program s goal of developing high-performance, energy efficient buildings will require more cost-effective, durable, energy efficient building envelopes. Forty-eight percent of the residential end-use energy consumption is spent on space heating and air conditioning. Reducing envelope-generated heating and cooling loads through application of phase change material (PCM)-enhanced envelope components can facilitate maximizing the energy efficiency of buildings. Field-testing of prototype envelope components is an important step in estimating their energy benefits. An innovative phase change material (nano-PCM) was developed with PCM encapsulated with expanded graphite (interconnected) nanosheets, which is highly conducive for enhanced thermal storage and energy distribution, and is shape-stable for convenient incorporation into lightweight building components. During 2012, two test walls with cellulose cavity insulation and prototype PCM-enhanced interior wallboards were installed in a natural exposure test (NET) facility at Charleston, SC. The first test wall was divided into four sections, which were separated by wood studs and thin layers of foam insulation. Two sections contained nano-PCM-enhanced wallboards: one was a three-layer structure, in which nano-PCM was sandwiched between two gypsum boards, and the other one had PCM dispersed homogeneously throughout graphite nanosheets-enhanced gypsum board. The second test wall also contained two sections with interior PCM wallboards; one contained nano-PCM dispersed homogeneously in gypsum and the other was gypsum board containing a commercial microencapsulated PCM (MEPCM) for comparison. Each test wall contained a section covered with gypsum board on the interior side, which served as control or a baseline for evaluation of the PCM wallboards. The walls were instrumented with arrays of thermocouples and heat flux transducers. Further, numerical modeling of the walls containing the nano-PCM wallboards were performed to determine their actual impact on wall-generated heating and cooling loads. The models were first validated using field data, and then used to perform annual simulations using Typical Meteorological Year (TMY) weather data. This article presents the measured performance and numerical analysis to evaluate the energy-saving potential of the nano-PCM-enhanced building components.

  17. Micro/nanofabricated environments for synthetic biology

    SciTech Connect (OSTI)

    Collier, Pat [ORNL; Simpson, Michael L [ORNL

    2011-01-01

    A better understanding of how confinement, crowding and reduced dimensionality modulate reactivity and reaction dynamics will aid in the rational and systematic discovery of functionality in complex biological systems. Artificial micro- and nanofabricated structures have helped elucidate the effects of nanoscale spatial confinement and segregation on biological behavior, particularly when integrated with microfluidics, through precise control in both space and time of diffusible signals and binding interactions. Examples of nanostructured interfaces for synthetic biology include the development of cell-like compartments for encapsulating biochemical reactions, nanostructured environments for fundamental studies of diffusion, molecular transport and biochemical reaction kinetics, and regulation of biomolecular interactions as functions of micro- and nanofabricated topological constraints.

  18. Structural hysteresis in dragline spider silks induced by supercontraction: an X-ray fiber micro-diffraction study

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Sampath, Sujatha; Yarger, Jeffery L.

    2014-11-27

    Interaction with water causes shrinkage and significant changes in the structure of spider dragline silks, which has been referred to as supercontraction in the literature. Preferred orientation or alignment of protein chains with respect to the fiber axis is extensively changed during this supercontraction process. Synchrotron X-ray micro-fiber diffraction experiments have been performed on Nephila clavipes and Argiope aurantia major and minor ampullate dragline spider fibers in the native dry, contracted (by immersion in water) and restretched (from contracted) states. Changes in the orientation of ?-sheet nanocrystallites and the oriented component of the amorphous network have been determined from wide-anglemore »X-ray diffraction patterns. While both the crystalline and amorphous components lose preferred orientation on wetting with water, the nano-crystallites regain their orientation on wet-restretching, whereas the oriented amorphous components only partially regain their orientation. Dragline major ampullate silks in both the species contract more than their minor ampullate silks.« less

  19. Determination of Interfacial Mechanical Properties of Ceramic Composites by the Compression of Micro-pillar Test Specimens

    SciTech Connect (OSTI)

    Shih, Chunghao; Katoh, Yutai; Leonard, Keith J; Bei, Hongbin; Lara-Curzio, Edgar

    2013-01-01

    A novel method to determine the fiber-matrix interfacial properties of ceramic matrix composites is proposed and evaluated; where micro- pillar samples containing inclined fiber/matrix interfaces were prepared from a SiC fiber reinforced SiC matrix composites then compression-tested using the nano-indentation technique. This new test method employs a simple geometry and mitigates the uncertainties associated with complex stress state in the conventional single filament push-out method for the determination of interfacial properties. Based on the test results using samples with different interface orientations , the interfacial debond shear strength and the internal friction coefficient are explicitly determined and compared with values obtained by other test methods.

  20. Mirror profile optimization for nano-focusing KB mirror

    SciTech Connect (OSTI)

    Zhang Lin; Baker, Robert; Barrett, Ray; Cloetens, Peter; Dabin, Yves

    2010-06-23

    A KB focusing mirror width profile has been optimized to achieve nano-focusing for the nano-imaging end-station ID22NI at the ESRF. The complete mirror and flexure bender assembly has been modeled in 3D with finite element analysis using ANSYS. Bender stiffness, anticlastic effects and geometrical non-linear effects have been considered. Various points have been studied: anisotropy and crystal orientation, stress in the mirror and bender, actuator resolution and the mirror-bender adhesive bonding... Extremely high performance of the mirror is expected with residual slope error smaller than 0.6 {mu}rad, peak-to-valley, compared to the bent slope of 3000 {mu}rad.

  1. Small footprint nano-mechanical plasmonic phase modulators

    E-Print Network [OSTI]

    Aksyuk, V A; Haftel, M I; Czaplewski, D A; Lopez, D; Blumberg, G

    2015-01-01

    The authors' recent Nature Photonics article titled "Compact Nano-Mechanical Plasmonic Phase Modulators" [1] is reviewed which reports a new phase modulation principle with experimental demonstration of a 23 {\\mu}m long non-resonant modulator having 1.5 {\\pi} rad range with 1.7 dB excess loss at 780 nm. Analysis showed that by decreasing all dimensions, a low loss, ultra-compact {\\pi} rad phase modulator is possible. Application of this type of nano-mechanical modulator in a miniature 2 x 2 switch is suggested and an optical design numerically validated. The footprint of the switch is 0.5 {\\mu}m x 2.5 {\\mu}m.

  2. Nonlinear dynamics of two coupled nano-electromechanical resonators

    E-Print Network [OSTI]

    L. Chotorlishvili; A. Ugulava; G. Mchedlishvili; A. Komnik; S. Wimberger; J. Berakdar

    2011-06-26

    As a model of coupled nano-electromechanical resonantors we study two nonlinear driven oscillators with an arbitrary coupling strength between them. Analytical expressions are derived for the oscillation amplitudes as a function of the driving frequency and for the energy transfer rate between the two oscillators. The nonlinear restoring forces induce the expected nonlinear resonance structures in the amplitude-frequency characteristics with asymmetric resonance peaks. The corresponding multistable behavior is shown to be an efficient tool to control the energy transfer arising from the sensitive response to small changes in the driving frequency. Our results imply that the nonlinear response can be exploited to design precise sensors for mass or force detection experiments based on nano-electromechanical resonators.

  3. High frequency nano-optomechanical disk resonators in liquids

    E-Print Network [OSTI]

    Gil-Santos, E; Nguyen, D T; Hease, W; Lemaître, A; Ducci, S; Leo, G; Favero, I

    2015-01-01

    Vibrating nano- and micromechanical resonators have been the subject of research aiming at ultrasensitive mass sensors for mass spectrometry, chemical analysis and biomedical diagnosis. Unfortunately, their merits diminish dramatically in liquids due to dissipative mechanisms like viscosity and acoustic losses. A push towards faster and lighter miniaturized nanodevices would enable improved performances, provided dissipation was controlled and novel techniques were available to efficiently drive and read-out their minute displacement. Here we report on a nano-optomechanical approach to this problem using miniature semiconductor disks. These devices combine mechanical motion at high frequency above the GHz, ultra-low mass of a few picograms, and moderate dissipation in liquids. We show that high-sensitivity optical measurements allow to direct resolve their thermally driven Brownian vibrations, even in the most dissipative liquids. Thanks to this novel technique, we experimentally, numerically and analytically...

  4. Method for forming a nano-textured substrate

    DOE Patents [OSTI]

    Jeong, Sangmoo; Hu, Liangbing; Cui, Yi

    2015-04-07

    A method for forming a nano-textured surface on a substrate is disclosed. An illustrative embodiment of the present invention comprises dispensing of a nanoparticle ink of nanoparticles and solvent onto the surface of a substrate, distributing the ink to form substantially uniform, liquid nascent layer of the ink, and enabling the solvent to evaporate from the nanoparticle ink thereby inducing the nanoparticles to assemble into an texture layer. Methods in accordance with the present invention enable rapid formation of large-area substrates having a nano-textured surface. Embodiments of the present invention are well suited for texturing substrates using high-speed, large scale, roll-to-roll coating equipment, such as that used in office product, film coating, and flexible packaging applications. Further, embodiments of the present invention are well suited for use with rigid or flexible substrates.

  5. Process window and variation characterization of the micro embossing process

    E-Print Network [OSTI]

    Wang, Qi, S.M. Massachusetts Institute of Technology

    2006-01-01

    The micro embossing process on polymethylmethacrylate (PMMA) is demonstrated experimentally to be a useful process to produce micro fluidic and optical devices. Because this process is a one step thermoplastic deformation ...

  6. Micro-bioreactor design for Chinese hamster ovary cells

    E-Print Network [OSTI]

    Goh, Shireen

    2013-01-01

    The research objective is to design a micro-bioreactor for the culture of Chinese Hamster Ovary (CHO) cells. There is an increasing demand for upstream development in high-throughput micro-bioreactors specifically for the ...

  7. In Conversation with Jim Schuck: Nano-optics

    ScienceCinema (OSTI)

    Jim Schuck and Alice Egan

    2010-01-08

    Sponsored by Berkeley Lab's Materials Sciences Division (MSD), "In Conversation with" is a next generation science seminar series. Host Alice Egan is the assistant to MSD Director Miquel Salmeron. Alice conducts a fun and informative interview, touching on the lives and work of the guest. The first In Conversation With took place July 9 with Jim Schuck, a staff scientist in the Molecular Foundry's Imaging and Manipulation Facility as our first guest. He discussed the world of Nano-optics.

  8. New York Nano-Bio Molecular Information Technology (NYNBIT) Incubator

    SciTech Connect (OSTI)

    Das, Digendra K

    2008-12-19

    This project presents the outcome of an effort made by a consortium of six universities in the State of New York to develop a Center for Advanced technology (CAT) in the emerging field of Nano-Bio-Molecular Information Technology. The effort consists of activities such as organization of the NYNBIT incubator, collaborative research projects, development of courses, an educational program for high schools, and commercial start-up programs.

  9. Slip casting nano-particle powders for making transparent ceramics

    DOE Patents [OSTI]

    Kuntz, Joshua D. (Livermore, CA); Soules, Thomas F. (Livermore, CA); Landingham, Richard Lee (Livermore, CA); Hollingsworth, Joel P. (Oakland, CA)

    2011-04-12

    A method of making a transparent ceramic including the steps of providing nano-ceramic powders in a processed or unprocessed form, mixing the powders with de-ionized water, the step of mixing the powders with de-ionized water producing a slurry, sonifing the slurry to completely wet the powder and suspend the powder in the de-ionized water, separating very fine particles from the slurry, molding the slurry, and curing the slurry to produce the transparent ceramic.

  10. Nano-structured polymer composites and process for preparing same

    DOE Patents [OSTI]

    Hillmyer, Marc; Chen, Liang

    2013-04-16

    A process for preparing a polymer composite that includes reacting (a) a multi-functional monomer and (b) a block copolymer comprising (i) a first block and (ii) a second block that includes a functional group capable of reacting with the multi-functional monomer, to form a crosslinked, nano-structured, bi-continuous composite. The composite includes a continuous matrix phase and a second continuous phase comprising the first block of the block copolymer.

  11. Shenzhen Institute of Nano Materials and Technology | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing Capacity for LowInformation Nano Materials and Technology Jump to:

  12. Method of producing exfoliated graphite, flexible graphite, and nano-scaled graphene platelets

    DOE Patents [OSTI]

    Zhamu, Aruna (Centerville, OH); Shi, Jinjun (Columbus, OH); Guo, Jiusheng (Centerville, OH); Jang, Bor Z. (Centerville, OH)

    2010-11-02

    The present invention provides a method of exfoliating a layered material (e.g., graphite and graphite oxide) to produce nano-scaled platelets having a thickness smaller than 100 nm, typically smaller than 10 nm. The method comprises (a) dispersing particles of graphite, graphite oxide, or a non-graphite laminar compound in a liquid medium containing therein a surfactant or dispersing agent to obtain a stable suspension or slurry; and (b) exposing the suspension or slurry to ultrasonic waves at an energy level for a sufficient length of time to produce separated nano-scaled platelets. The nano-scaled platelets are candidate reinforcement fillers for polymer nanocomposites. Nano-scaled graphene platelets are much lower-cost alternatives to carbon nano-tubes or carbon nano-fibers.

  13. Diagnostic system for profiling micro-beams

    DOE Patents [OSTI]

    Elmer, John W. (Danville, CA); Palmer, Todd A. (Livermore, CA); Teruya, Alan T. (Livermore, CA); Walton, Chris C. (Berkeley, CA)

    2007-10-30

    An apparatus for characterization of a micro beam comprising a micro modified Faraday cup assembly including a first layer of material, a second layer of material operatively connected to the first layer of material, a third layer of material operatively connected to the second layer of material, and a fourth layer of material operatively connected to the third layer of material. The first layer of material comprises an electrical conducting material and has at least one first layer radial slit extending through the first layer. An electrical ground is connected to the first layer. The second layer of material comprises an insulating material and has at least one second layer radial slit corresponding to the first layer radial slit in the first layer of material. The second layer radial slit extends through the second layer. The third layer of material comprises a conducting material and has at least one third layer radial slit corresponding to the second layer radial slit in the second layer of material. The third layer radial slit extends through the third layer. The fourth layer of material comprises an electrical conducting material but does not have slits. An electrical measuring device is connected to the fourth layer. The micro modified Faraday cup assembly is positioned to be swept by the micro beam.

  14. MicroReview Bistability in bacteria

    E-Print Network [OSTI]

    Mekalanos, John

    MicroReview Bistability in bacteria David Dubnau1 * and Richard Losick2,3 * 1 Public Health 94720, USA. Summary Gene expression in bacteria is traditionally studied from the average behaviour expression in individual cells reveals, however, that populations of genetically identical bacteria

  15. MicroRNA Regulation of IGF-1 

    E-Print Network [OSTI]

    McEnery, Kayla Anne Filan

    2013-02-04

    an incredible learning experience. Finally, I would like to thank my friends and family for their continuous love and support. 4 ABSTRACT MicroRNA Regulation of IGF. (May 2013) Kayla Anne Filan McEnery Department of Biochemistry & Biophysics Texas A...

  16. MEMS micropump for a Micro Gas Analyzer

    E-Print Network [OSTI]

    Sharma, Vikas, 1979-

    2009-01-01

    This thesis presents a MEMS micro-vacuum pump designed for use in a portable gas analysis system. It is designed to be pneumatically-driven and as such does not have self-contained actuation (the focus of future work). ...

  17. Dumbbell micro-robot driven by flow oscillations

    E-Print Network [OSTI]

    Dumbbell micro-robot driven by flow oscillations By V. A. V l a d i m i r o v Dept of Mathematics-propulsion of a dumbbell micro-robot submerged in a viscous fluid. The micro-robot consists of two rigid spherical beads of each sphere differs from the density of a fluid, while the whole micro-robot has neutral buoyancy

  18. Micro Chemical Vapor Deposition for the Synthesis of Nanomaterials

    E-Print Network [OSTI]

    Zhou, Qin

    2011-01-01

    Deposition," Journal of MicroElectroMechanical Systems, vol.Chair MEMS (Microelectromechanical Systems) technologiesby MEMS (Microelectromechanical Systems) technologies many

  19. Applications of non-imaging micro-optic systems

    E-Print Network [OSTI]

    Baker, Katherine Anne

    2012-01-01

    planar micro-optic solar collectors," Opt. Express 19, A673-A. Rabl. Active Solar Collectors and Their Applications. (

  20. Complex Dynamics of Nano-Mechanical Membrane in Cavity Optomechanics

    E-Print Network [OSTI]

    Muhammad Javed Akram; Farhan Saif

    2014-11-03

    Theoretical analysis of a suspended nano-mechanical membrane subject to an optical driving field in cavity optomechanics is presented, which is confirmed through numerical simulations. In the presence of an optical field between its mirrors a high finesse nano-mechanical resonator acts as an oscillator driven by radiation pressure force. The periodic nature of the radiation pressure force makes the nano-mechanical membrane in the optomechanical system as kicked harmonic oscillator. Mathematically the physical system displays a stochastic web map that helps to understand several properties of the kicked membrane in classical phase space. We find that our web map is area preserving, and displays quasi-periodic symmetrical structures in phase space which we express as q-fold symmetry. It is shown that under appropriate control of certain parameters, namely the frequency ratio (q) and the kicking strength (K), the dynamics of kicked membrane exhibits chaotic dynamics. We provide the stability analysis by means of Lyapunov exponent and survival probability.

  1. Nano-scale NiSi and n-type silicon based Schottky barrier diode as a near infra-red detector for room temperature operation

    SciTech Connect (OSTI)

    Roy, S.; Midya, K.; Duttagupta, S. P.; Ramakrishnan, D.

    2014-09-28

    The fabrication of nano-scale NiSi/n-Si Schottky barrier diode by rapid thermal annealing process is reported. The characterization of the nano-scale NiSi film was performed using Micro-Raman Spectroscopy and X-ray Photoelectron Spectroscopy (XPS). The thickness of the film (27 nm) has been measured by cross-sectional Secondary Electron Microscopy and XPS based depth profile method. Current–voltage (I–V) characteristics show an excellent rectification ratio (I{sub ON}/I{sub OFF} = 10?) at a bias voltage of ±1 V. The diode ideality factor is 1.28. The barrier height was also determined independently based on I–V (0.62 eV) and high frequency capacitance–voltage technique (0.76 eV), and the correlation between them has explained. The diode photo-response was measured in the range of 1.35–2.5 ?m under different reverse bias conditions (0.0–1.0 V). The response is observed to increase with increasing reverse bias. From the photo-responsivity study, the zero bias barrier height was determined to be 0.54 eV.

  2. Towards sub-200?nm nano-structuring of linear giant magneto-resistive spin valves by a direct focused ion beam milling process

    SciTech Connect (OSTI)

    Riedmüller, Benjamin; Huber, Felix; Herr, Ulrich

    2014-02-14

    In this work, we present a detailed investigation of a focused ion beam (FIB) assisted nano-structuring process for giant magneto-resistive (GMR) spin valve sensors. We have performed a quantitative study of the dependence of the GMR ratio as well as the sensor resistance on the ion dose, which is implanted in the active region of our sensors. These findings are correlated with the decrease of magneto-resistive properties after micro- and nano-structuring by the FIB and reveal the importance of ion damage which limits the applicability of FIB milling to GMR devices in the low ?m range. Deposition of a protective layer (50?nm SiO{sub 2}) on top of the sensor structure before milling leads to a preservation of the magneto-resistive properties after the milling procedure down to sensor dimensions of ?300?nm. The reduction of the sensor dimensions to the nanometer regime is accompanied by a shift of the GMR curves, and a modification of the saturation behavior. Both effects can be explained by a micromagnetic model including the magnetic interaction of free and pinned layer as well as the effect of the demagnetizing field of the free layer on the sensor behavior. The results demonstrate that the FIB technology can be successfully used to prepare spintronic nanostructures.

  3. Effect of sintering in ball-milled K{sub 2}Bi{sub 8}Se{sub 13} thermoelectric nano-composites

    SciTech Connect (OSTI)

    Hatzikraniotis, E.; Ioannou, M.; Chrissafis, K.; Chung, D.Y.; Paraskevopoulos, K.M.; Kyratsi, Th.

    2012-09-15

    K{sub 2}Bi{sub 8}Se{sub 13} has many attractive features for thermoelectric applications. Recently, K{sub 2}Bi{sub 8}Se{sub 13}-based nanocomposite materials, consisting of nano-crystalline, micro-crystalline and amorphous phases, have been fabricated based on powder technology techniques. The Seebeck coefficient has been enhanced while the thermal conductivity has been decreased presenting, thus, interesting behavior. The behavior of the materials under heat treatment conditions is now of interest, as the application of sintering process is necessary for the development of thermoelectric modules. In this work, the crystallization of the K{sub 2}Bi{sub 8}Se{sub 13}-based nano-composites is studied using Differential Scanning Calorimetry. The results show that crystallization follows a multiple-step process with different activation energies. The thermoelectric properties are also discussed in the range that crystallization occurs. - Graphical Abstract: {beta}-K{sub 2}Bi{sub 8}Se{sub 13}-based nanocomposites follow a multiple-step crystallization process. Highlights: Black-Right-Pointing-Pointer K{sub 2}Bi{sub 8}Se{sub 13}-based composites consisting of nanocrystalline and amorphous phases. Black-Right-Pointing-Pointer Sintering results multiple-step crystallization with variable activation energies. Black-Right-Pointing-Pointer Thermoelectric properties follow a step-like behavior during sintering. Black-Right-Pointing-Pointer Properties are attributed to the strain relaxation, nucleation and grain growth.

  4. The Role of Micro-Mechanics in Soil Mechanics

    E-Print Network [OSTI]

    Bolton, Malcolm

    The Role of Micro-Mechanics in Soil Mechanics M.D.Bolton CUED/D-Soils/TR313 September 2000;1 The Role of Micro-Mechanics in Soil Mechanics Malcolm Bolton Summary It is suggested that observations of the changing microstructure of soils will permit the selection and refinement of relevant micro-mechanisms

  5. Grid Simulator for Power Quality Assessment of Micro-Grids

    E-Print Network [OSTI]

    Vasquez, Juan Carlos

    1 Grid Simulator for Power Quality Assessment of Micro-Grids Joaqu´in Eloy-Garc´iaa , Juan C of the simulator. Finally, a case study is presented by testing a micro-grid. Index Terms Grid Simulator, Power for power quality assessment of micro-grids". Published in IET Power Electronics. doi: 10.1049/iet-pel.2012

  6. Technology uses micro-windmills to recharge cell phones

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    Technology uses micro-windmills to recharge cell phones A micro-windmill is pictured on the face designed a micro-windmill that generates wind energy and may become an innovative solution to cell phone batteries constantly in need of recharging and home energy generation where large windmills

  7. A study of micro fiber dispersion using digital image analysis 

    E-Print Network [OSTI]

    Hendrarsakti, Jooned

    2004-11-15

    of this dissertation is to investigate the use of texture analysis as a tool to micro fiber dispersion measurement. Micro fiber dispersion can be found in many applications such as in paper and industry powder engineering. Three cases related to micro fiber...

  8. 31Nano-Islands on Plastically Deformed Substrates with Disclinations Corresponding author: I.A. Ovid'ko, e-mail: ovidko@def.ipme.ru

    E-Print Network [OSTI]

    Ovid'ko Ilya A.

    is capable of causing preferable spatial positions of nano-islands. The parameters of the substrate/nano-island systems are theoretically revealed that control spatial positions of nano-islands on disclinated

  9. Design of a micro-Functional Testing System for process characterization of a hot micro-embossing machine

    E-Print Network [OSTI]

    Thaker, Kunal H. (Kunal Harish)

    2006-01-01

    Growth in industrial, commercial, and medical applications for micro-fluidic devices has fueled heightened research and development into micro-fluidic design, materials, and increasingly manufacturing. Polymers (Poly(methyl ...

  10. Experimental Study on the Demolding Force in Micro Metal Injection Molding

    E-Print Network [OSTI]

    Tor, Shu Beng

    In this paper experimental study on the demolding force needed to eject micro structures in Micro Metal Injection

  11. Engineering Physics: From Nano-Electronics and Photonics to Renewable Energy

    E-Print Network [OSTI]

    Smy, Tom

    Engineering Physics: From Nano-Electronics and Photonics to Renewable Energy Tom Smy Department Software Engineering Sustainable and Renewable Energy Engineering #12;A System-level Design Circuit

  12. Design of bulk nanocrystalline tungsten alloys via nano-phase separation sintering

    E-Print Network [OSTI]

    Park, Mansoo, Ph. D. Massachusetts Institute of Technology

    2015-01-01

    An accelerated sintering method called 'nano-phase separation sintering' is developed, with specific applicability to nanostructured tungsten alloys. Nanocrystalline tungsten alloys containing minority additions of chromium ...

  13. A Rapid Micro Polymerase Chain Reaction System (GenSpector Micro PCR) for Hepatitis B Virus DNA Detection

    E-Print Network [OSTI]

    Oh, Kwang W.

    A Rapid Micro Polymerase Chain Reaction System (GenSpector® Micro PCR) for Hepatitis B Virus DNA reaction) system (GenSpector® Micro PCR) for the application of Hepatitis B virus (HBV) DNA detection of Hepatitis B virus (HBV) DNA detection [1]. Silicon micromachining technology has been utilized

  14. High-speed micro-electro-discharge machining.

    SciTech Connect (OSTI)

    Chandrasekar, Srinivasan Dr. (.School of Industrial Engineering, West Lafayette, IN); Moylan, Shawn P. (School of Industrial Engineering, West Lafayette, IN); Benavides, Gilbert Lawrence

    2005-09-01

    When two electrodes are in close proximity in a dielectric liquid, application of a voltage pulse can produce a spark discharge between them, resulting in a small amount of material removal from both electrodes. Pulsed application of the voltage at discharge energies in the range of micro-Joules results in the continuous material removal process known as micro-electro-discharge machining (micro-EDM). Spark erosion by micro-EDM provides significant opportunities for producing small features and micro-components such as nozzle holes, slots, shafts and gears in virtually any conductive material. If the speed and precision of micro-EDM processes can be significantly enhanced, then they have the potential to be used for a wide variety of micro-machining applications including fabrication of microelectromechanical system (MEMS) components. Toward this end, a better understanding of the impacts the various machining parameters have on material removal has been established through a single discharge study of micro-EDM and a parametric study of small hole making by micro-EDM. The main avenues for improving the speed and efficiency of the micro-EDM process are in the areas of more controlled pulse generation in the power supply and more controlled positioning of the tool electrode during the machining process. Further investigation of the micro-EDM process in three dimensions leads to important design rules, specifically the smallest feature size attainable by the process.

  15. Theoretical study of physisorption of nucleobases on boron nitride nanotubes: a new class of hybrid nano-biomaterials

    E-Print Network [OSTI]

    Pandey, Ravi

    nano-biomaterials This article has been downloaded from IOPscience. Please scroll down to see the full on boron nitride nanotubes: a new class of hybrid nano-biomaterials Saikat Mukhopadhyay1 , S Gowtham1

  16. Micro electro mechanical system optical switching

    DOE Patents [OSTI]

    Thorson, Kevin J; Stevens, Rick C; Kryzak, Charles J; Leininger, Brian S; Kornrumpf, William P; Forman, Glenn A; Iannotti, Joseph A; Spahn, Olga B; Cowan, William D; Dagel, Daryl J

    2013-12-17

    The present disclosure includes apparatus, system, and method embodiments that provide micro electo mechanical system optical switching and methods of manufacturing switches. For example, one optical switch embodiment includes at least one micro electro mechanical system type pivot mirror structure disposed along a path of an optical signal, the structure having a mirror and an actuator, and the mirror having a pivot axis along a first edge and having a second edge rotatable with respect to the pivot axis, the mirror being capable of and arranged to be actuated to pivot betweeen a position parallel to a plane of an optical signal and a position substantially normal to the plane of the optical signal.

  17. Micro-system inertial sensing technology overview.

    SciTech Connect (OSTI)

    Allen, James Joe

    2009-02-01

    The purpose of this report is to provide an overview of Micro-System technology as it applies to inertial sensing. Transduction methods are reviewed with capacitance and piezoresistive being the most often used in COTS Micro-electro-mechanical system (MEMS) inertial sensors. Optical transduction is the most recent transduction method having significant impact on improving sensor resolution. A few other methods are motioned which are in a R&D status to hopefully allow MEMS inertial sensors to become viable as a navigation grade sensor. The accelerometer, gyroscope and gravity gradiometer are the type of inertial sensors which are reviewed in this report. Their method of operation and a sampling of COTS sensors and grade are reviewed as well.

  18. MICRO-CHP System for Residential Applications

    SciTech Connect (OSTI)

    Joseph Gerstmann

    2009-01-31

    This is the final report of progress under Phase I of a project to develop and commercialize a micro-CHP system for residential applications that provides electrical power, heating, and cooling for the home. This is the first phase of a three-phase effort in which the residential micro-CHP system will be designed (Phase I), developed and tested in the laboratory (Phase II); and further developed and field tested (Phase III). The project team consists of Advanced Mechanical Technology, Inc. (AMTI), responsible for system design and integration; Marathon Engine Systems, Inc. (MES), responsible for design of the engine-generator subsystem; AO Smith, responsible for design of the thermal storage and water heating subsystems; Trane, a business of American Standard Companies, responsible for design of the HVAC subsystem; and AirXchange, Inc., responsible for design of the mechanical ventilation and dehumidification subsystem.

  19. INNOVATIVE EDDY CURRENT PROBE FOR MICRO DEFECTS

    SciTech Connect (OSTI)

    Santos, Telmo G.; Vilaca, Pedro; Quintino, Luisa [IDMEC, Av. Rovisco Pais, 1049-001 Lisbon (Portugal); Santos, Jorge dos [GKSS, Max-Planck-Street 1, D-21502 Geesthacht (Germany); Rosado, Luis [IST, UTL, Av. Rovisco Pais, 1049-001 Lisbon (Portugal)

    2010-02-22

    This paper reports the development of an innovative eddy current (EC) probe, and its application to micro-defects on the root of the Friction Stir Welding (FSW). The new EC probe presents innovative concept issues, allowing 3D induced current in the material, and a lift-off independence. Validation experiments were performed on aluminium alloys processed by FSW. The results clearly show that the new EC probe is able to detect and sizing surface defects about 60 microns depth.

  20. Micro -Thermonuclear AB-Reactors for Aerospace

    E-Print Network [OSTI]

    Alexander Bolonkin

    2007-01-08

    The author offers several innovations that he first suggested publicly early in 1983 for the AB multi-reflex engine, space propulsion, getting energy from plasma, etc. (see: A. Bolonkin, Non-Rocket Space Launch and Flight, Elsevier, London, 2006, Chapters 12, 3A). It is the micro-thermonuclear AB-Reactors. That is new micro-thermonuclear reactor with very small fuel pellet that uses plasma confinement generated by multi-reflection of laser beam or its own magnetic field. The Lawson criterion increases by hundreds of times. The author also suggests a new method of heating the power-making fuel pellet by outer electric current as well as new direct method of transformation of ion kinetic energy into harvestable electricity. These offered innovations dramatically decrease the size, weight and cost of thermonuclear reactor, installation, propulsion system and electric generator. Non-industrial countries can produce these researches and constructions. Currently, the author is researching the efficiency of these innovations for two types of the micro-thermonuclear reactors: multi-reflection reactor (ICF) and self-magnetic reactor (MCF).

  1. Effect of substrates on microstructure and mechanical properties of nano-eutectic 1080 steel produced by aluminothermic reaction

    SciTech Connect (OSTI)

    La, Peiqing, E-mail: pqla@lut.cn; Li, Zhengning; Li, Cuiling; Hu, Sulei; Lu, Xuefeng; Wei, Yupeng; Wei, Fuan

    2014-06-01

    Nano-eutectic bulk 1080 carbon steel was prepared on glass and copper substrates by an aluminothermic reaction casting. The microstructure of the steel was analyzed by an optical microscope, transmission electron microscopy, an electron probe micro-analyzer, a scanning electron microscope and X-ray diffraction. Results show that the microstructure of the steel consisted of a little cementite and lamellar eutectic pearlite. Average lamellar spacing of the pearlite prepared on copper and glass substrates was about 230 nm and 219 nm, respectively. Volume fraction of the pearlite of the two steels was about 95%. Hardness of the steel was about 229 and 270 HV. Tensile strength was about 610 and 641 MPa and tensile elongation was about 15% and 8%. Compressive strength was about 1043 and 1144 MPa. Compared with the steel prepared on copper substrate, the steel prepared on glass substrate had smaller lamellar spacing of the pearlite phase and higher strength, and low ductility due to the smaller spacing. - Highlights: • 1080-carbon steels were successfully prepared by an aluminothermic reaction casting. • Lamellar spacing of the nanoeutetic pearlite is less than 250 nm. • The compressive strength of the steel is about 1144 MPa. • The tensile ductility of the steel is about 15%.

  2. Millie Dresselhaus: Department of Physics and Engineering, Massachuset...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    by others. Biography Professor Mildred Dresselhaus is a native of the Bronx, New York City, where she attended the New York City public schools through junior high school,...

  3. Copyright A. J. Millis 2013 Columbia University Transition Metal Oxides

    E-Print Network [OSTI]

    Millis, Andrew

    .353 5.6437 5.244 Lutetium 6.146 5.5769 6.689 5.5387 6.64 5.473 7.01 5.5250 7.264 Holmium Erbium Thulium

  4. Millis-Clicquot, Massachusetts: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland: Energy ResourcesDec 2005 WindPROLLC JumpEthanol LLCMillis,

  5. Millie Dresselhaus: Department of Physics and Engineering, Massachusetts

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on77 PAGE OFDetectionBenchmark Performance ofMilitaryMiller

  6. Milli-fluidic Reactor for Catalyst Research D. Yemane

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework uses concrete7 Assessment ofLana7,

  7. Method of producing carbon coated nano- and micron-scale particles

    DOE Patents [OSTI]

    Perry, W. Lee; Weigle, John C; Phillips, Jonathan

    2013-12-17

    A method of making carbon-coated nano- or micron-scale particles comprising entraining particles in an aerosol gas, providing a carbon-containing gas, providing a plasma gas, mixing the aerosol gas, the carbon-containing gas, and the plasma gas proximate a torch, bombarding the mixed gases with microwaves, and collecting resulting carbon-coated nano- or micron-scale particles.

  8. Usage Policies Notebook for NanoFurnace Furnace (EasyTube 3000 System)

    E-Print Network [OSTI]

    Mease, Kenneth D.

    Usage Policies Notebook for NanoFurnace Furnace (EasyTube 3000 System) Revision date October 2014 #12;2 Emergency Plan for Nano Furnace Standard Operating Procedures for Emergencies ContactTube3000 Furnace to grow carbon nanotubes, graphene, and annealing. To avoid any potential fire

  9. Physical Channel Characterization for Medium-Range Nano-Networks using Flagellated Bacteria

    E-Print Network [OSTI]

    Politčcnica de Catalunya, Universitat

    Physical Channel Characterization for Medium-Range Nano-Networks using Flagellated Bacteria Maria-µm): flagellated bacteria. This tech- nique is based on the transport of DNA-encoded information between emit- ters-machines. Keywords: Nano-networks; Molecular Communication; Flagellated Bacteria; DNA Packet; Propagation delay

  10. Self-Powered Wireless Nano-scale Sensor Networks within Chemical Reactors

    E-Print Network [OSTI]

    New South Wales, University of

    Self-Powered Wireless Nano-scale Sensor Networks within Chemical Reactors Eisa Zarepour1 Mahbub, Australia #12;Abstract Because of their small size and unique nanomaterial properties, nano-scale sen- sor networks (NSNs) can be applied in many chemical applications to monitor and control the chemical process

  11. Characterization of Graphene-based Nano-antennas in the Terahertz Band

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    Characterization of Graphene-based Nano-antennas in the Terahertz Band (Invited Paper) Ignacio and Communication Technology, KTH Royal Institute of Technology, 16640 Kista, Sweden Email: lemme@kth.se Abstract--Graphene communications at the nanoscale. Indeed, graphene- based nano-antennas just a few micrometers in size have been

  12. Nanotechnology Today 2010: NanoReg & Keller and Heckman Announce Continuation of

    E-Print Network [OSTI]

    Gilchrist, James F.

    Nanotechnology Today 2010: NanoReg & Keller and Heckman Announce Continuation of Popular Nanotechnology Webinar Series Building on last year's popular webinars on the regulation of nanotechnology, Keller and Heckman & NanoReg are pleased to announce Nanotechnology Today 2010, a series of four new

  13. Ion irradiation-induced amorphization and nano-crystal formation in garnets

    E-Print Network [OSTI]

    Utsunomiya, Satoshi

    Ion irradiation-induced amorphization and nano-crystal formation in garnets S. Utsunomiya a , L been examined by 1.0 MeV Kr2ţ irradiation with in situ transmission electron microscopy over ion irradiation of the G3 garnet at a temperature of 1023 K near the Tc, nano-crystals were produced

  14. Phase diagram of magnetic domain walls in spin valve nano-stripes N. Rougemaille,1

    E-Print Network [OSTI]

    Boyer, Edmond

    Phase diagram of magnetic domain walls in spin valve nano-stripes N. Rougemaille,1 V. UhlĂ­,2, 1 O walls in Co/Cu/Py spin valve nano-stripes (Py: Permalloy), in which the Co layer is mostly single domain Magneto- Resistance. These stacking are called spin valve for a metal spacer layer, and pseudo spin valve

  15. High speed nano-scale positioning using a piezoelectric tube actuator with

    E-Print Network [OSTI]

    Fleming, Andrew J.

    ], nanofabrication systems [4, 5] and nano- manipulation devices [6]. In many applications, piezoelectric tubesHigh speed nano-scale positioning using a piezoelectric tube actuator with active shunt control S. Aphale, A.J. Fleming and S.O.R. Moheimani Abstract: Piezoelectric tube scanners are the actuators

  16. Thin-Film Active Nano-PWAS for Structural Health Monitoring , Victor Giurgiutiu1

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Thin-Film Active Nano-PWAS for Structural Health Monitoring Bin Lin1 , Victor Giurgiutiu1 , Amar S 3 University of Texas Arlington, Arlington, TX 76019 ABSTRACT Structural health monitoring (SHM is to develop the fabrication and optimum design of thin-film nano-PWAS for structural health monitoring

  17. Nano-structured vanadium: processing and mechanical properties under quasi-static and dynamic compression

    E-Print Network [OSTI]

    Wei, Qiuming

    Nano-structured vanadium: processing and mechanical properties under quasi-static and dynamic compression Q. Wei a,*, T. Jiao a , K.T. Ramesh a , E. Ma b a Department of Mechanical Engineering, The Johns that the grain size of the consolidated V is around 100 nm. Mechanical properties of the nano-structured V were

  18. Relaxation Times of Nano-Colloid Flocculation Induced by Adsorbing and Non-adsorbing Polymers

    E-Print Network [OSTI]

    Ahlers, Guenter

    Relaxation Times of Nano-Colloid Flocculation Induced by Adsorbing and Non-adsorbing Polymers Alexander I. Chervanyov and Gert Heinrich Leibniz Institute of Polymer Research Dresden, D-01069 Dresden nano-colloids mediated by adsorbing and non-adsorbing polymers. By making use of this theory, we have

  19. Graphene-based nano-patch antenna for terahertz radiation Ignacio Llatser

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    Graphene-based nano-patch antenna for terahertz radiation Ignacio Llatser Nanonetworking Center The scattering of terahertz radiation on a graphene-based nano-patch antenna is numerically analyzed of surface plasmon polaritons supported by the graphene lm. A strong tunability of the antenna resonances via

  20. Coarse-grained Molecular Dynamics Simulation Approach for Polymer Nano-Composites Rubber

    E-Print Network [OSTI]

    Katsumoto, Shingo

    -composite materials are widely used in our daily life. Improvements by nano science and technology are required in orCoarse-grained Molecular Dynamics Simulation Approach for Polymer Nano-Composites Rubber Katsumi dynamics of entangled long- polymer melts and filled polymer rubber by us- ing coarse-grained model. We

  1. POLYMER PROGRAM SEMINAR "Single-chain Nanoparticles: Synthesis of Nano-scale

    E-Print Network [OSTI]

    Alpay, S. Pamir

    POLYMER PROGRAM SEMINAR "Single-chain Nanoparticles: Synthesis of Nano-scale Architectures:00 AM, IMS Room 20 Recent efforts by our lab to fold single polymer chains into nano as a reliable method to measure the change in solution conformation of polymer chains when folded via intra

  2. Optimization of Nano-Carbon Materials for Hydrogen Sorption

    SciTech Connect (OSTI)

    Yakobson, Boris I [Rice University

    2013-08-02

    Research undertaken has added to the understanding of several critical areas, by providing both negative answers (and therefore eliminating expensive further studies of unfeasible paths) and positive feasible options for storage. Theoretical evaluation of the early hypothesis of storage on pure carbon single wall nanotubes (SWNT) has been scrutinized with the use of comprehensive computational methods (and experimental tests by the Center partners), and demonstrated that the fundamentally weak binding energy of hydrogen is not sufficiently enhanced by the SWNT curvature or even defects, which renders carbon nanotubes not practical media. More promising direction taken was towards 3-dimensional architectures of high porosity where concurrent attraction of H2 molecule to surrounding walls of nano-scale cavities can double or even triple the binding energy and therefore make hydrogen storage feasible even at ambient or somewhat lower temperatures. An efficient computational tool has been developed for the rapid capacity assessment combining (i) carbon-foam structure generation, (ii) accurate empirical force fields, with quantum corrections for the lightweight H2, and (iii) grand canonical Monte Carlo simulation. This made it possible to suggest optimal designs for carbon nanofoams, obtainable via welding techniques from SWNT or by growth on template-zeolites. As a precursor for 3D-foams, we have investigated experimentally the synthesis of VANTA (Vertically Aligned NanoTube Arrays). This can be used for producing nano-foams. On the other hand, fluorination of VANTA did not show promising increase of hydrogen sorption in several tests and may require further investigation and improvements. Another significant result of this project was in developing a fundamental understanding of the elements of hydrogen spillover mechanisms. The benefit of developed models is the ability to foresee possible directions for further improvement of the spillover mechanism.

  3. r XXXX American Chemical Society A dx.doi.org/10.1021/nl201787r |Nano Lett. XXXX, XXX, 000000 pubs.acs.org/NanoLett

    E-Print Network [OSTI]

    Cui, Yi

    for smaller, lighter, and longer-lasting energy storage devices has increased.1,2 Silicon is considered one­000 LETTER pubs.acs.org/NanoLett Anomalous Shape Changes of Silicon Nanopillars by Electrochemical Lithiation

  4. Nano powders, components and coatings by plasma technique

    DOE Patents [OSTI]

    McKechnie, Timothy N. (Brownsboro, AL); Antony, Leo V. M. (Huntsville, AL); O'Dell, Scott (Arab, AL); Power, Chris (Guntersville, AL); Tabor, Terry (Huntsville, AL)

    2009-11-10

    Ultra fine and nanometer powders and a method of producing same are provided, preferably refractory metal and ceramic nanopowders. When certain precursors are injected into the plasma flame in a reactor chamber, the materials are heated, melted and vaporized and the chemical reaction is induced in the vapor phase. The vapor phase is quenched rapidly to solid phase to yield the ultra pure, ultra fine and nano product. With this technique, powders have been made 20 nanometers in size in a system capable of a bulk production rate of more than 10 lbs/hr. The process is particularly applicable to tungsten, molybdenum, rhenium, tungsten carbide, molybdenum carbide and other related materials.

  5. A Nano-visualization software for education and research

    E-Print Network [OSTI]

    Oetting, Lillian C; Raza, Hassan

    2015-01-01

    We report the development of a user-friendly nano-visualization software program which can acquaint high-school students with nanotechnology. The visual introduction to atoms and molecules, which are the building blocks of this technology, is an effective way to introduce the key concepts in this area. The software's graphical user interface enables multidimensional atomic visualization by using ball and stick schematics. Additionally, the software provides the option of wavefunction visualization for arbitrary nanomaterials and nanostructures by using extended Huckel theory. The software is instructive, application oriented and may be useful not only in high school education but also for the undergraduate research and teaching.

  6. Droplet Impingement Cooling Experiments on Nano-structured Surfaces 

    E-Print Network [OSTI]

    Lin, Yen-Po

    2011-10-21

    design of surface structure used in Sriraman and Banerjee's study [15] was adopted and fabricated using step and flash imprinting lithography (S- FIL) followed by several steps of thin film heater deposition. The purpose of this work is to obtain thin... Step and Flash Imprinting Lithography (S-FIL) is a nano fabrication technique developed by C.G. Willson and S. V. Sreenivasan's research group [16, 17] at the University of Texas at Austin. S-FIL defines and reproduces surface features based on a...

  7. Efficiency of autonomous soft nano-machines at maximum power

    E-Print Network [OSTI]

    Udo Seifert

    2010-11-11

    We consider nano-sized artificial or biological machines working in steady state enforced by imposing non-equilibrium concentrations of solutes or by applying external forces, torques or electric fields. For unicyclic and strongly coupled multicyclic machines, efficiency at maximum power is not bounded by the linear response value 1/2. For strong driving, it can even approach the thermodynamic limit 1. Quite generally, such machines fall in three different classes characterized, respectively, as "strong and efficient", "strong and inefficient", and "balanced". For weakly coupled multicyclic machines, efficiency at maximum power has lost any universality even in the linear response regime.

  8. Synchronization of spin torque nano-oscillators through dipolar interactions

    SciTech Connect (OSTI)

    Chen, Hao-Hsuan, E-mail: d95222014@ntu.edu.tw; Wu, Jong-Ching, E-mail: phjcwu@cc.ncue.edu.tw; Horng, Lance [Department of Physics, National Changhua University of Education, Changhua 500, Taiwan (China); Lee, Ching-Ming [Graduate School of Materials Science, National Yunlin University of Science and Technology, Douliou, 64002, Taiwan (China); Chang, Ching-Ray, E-mail: crchang@phys.ntu.edu.tw; Chang, Jui-Hang [Department of Physics and Center for Quantum Sciences and Engineering, National Taiwan University, Taipei 10617, Taiwan (China)

    2014-04-07

    In an array of spin-torque nano-oscillators (STNOs) that combine a perpendicular polarized fixed layer with strong in-plane anisotropy in the free layers, magnetic dipolar interactions can effectively phase-lock the array, thus further enhancing the power of the output microwave signals. We perform a qualitative analysis of the synchronization of an array based on the Landau-Lifshitz-Gilbert equation, with a spin-transfer torque that assumes strong in-plane anisotropy. Finally, we present the numerical results for four coupled STNOs to provide further evidence for the proposed theory.

  9. Nano Particles - Supercritical Fluid Process - Energy Innovation Portal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatialDevelopment of09Sponsor GuidelinesGlennNancy M.Nano

  10. Nano Structure Control and Selectivity of Hydrogen Release from Hydrogen

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatialDevelopment of09Sponsor GuidelinesGlennNancy M.NanoStorage -

  11. Stabilized Spinels and Nano Olivines | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo.Hydrogen4EnergySolidof2 SpecialSpent| DepartmentNano Olivines

  12. Korea Advanced Nano Fab Center KANC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:onItronKanoshKetchikanKlondike III I WindKohl'sAdvanced Nano

  13. Los Alamos shares Nano 50 award for directed assembly

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCentermillion to local UnitedtoHOPENew mechanism forAmericanNano

  14. A non-planar organic molecule with non-volatile electrical bistability for nano-scale data storage{

    E-Print Network [OSTI]

    Gao, Hongjun

    A non-planar organic molecule with non-volatile electrical bistability for nano-scale data storage-planar organic molecule with electron donor and acceptor capabilities was synthesized for nano-scale data storage possesses good electrical bistability. Nano-scale recording dots with an average diameter of 2.5 nm were

  15. Laser-like instabilities in quantum nano-electromechanical systems S. D. Bennett and A. A. Clerk

    E-Print Network [OSTI]

    Bennett, Steven D.

    Laser-like instabilities in quantum nano-electromechanical systems S. D. Bennett and A. A. Clerk; published 9 November 2006 We discuss negative damping regimes in quantum nano-electromechanical systemsRevB.74.201301 PACS number s : 73.23.Hk, 85.85. j, 72.70. m At their heart, quantum nano-electromechanical

  16. Nano/Microfluidics for diagnosis of infectious diseases in developing countries Won Gu Lee a,b,1

    E-Print Network [OSTI]

    Demirci, Utkan

    Nano/Microfluidics for diagnosis of infectious diseases in developing countries Won Gu Lee a,b,1 history: Received 15 June 2009 Accepted 14 September 2009 Available online 30 November 2009 Keywords: Nano/Microfluidics Infectious diseases HIV/AIDS Point-of-care Diagnostics Global health Nano/Microfluidic technologies

  17. GaAs micro-pyramids serving as optical micro-cavities

    SciTech Connect (OSTI)

    Karl, M.; Beck, T.; Li, S.; Hu, D. Z.; Schaadt, D. M.; Kalt, H.; Hetterich, M.

    2010-01-04

    An efficient light-matter coupling requires high-quality (Q) micro-cavities with small mode volume. We suggest GaAs micro-pyramids placed on top of AlAs/GaAs distributed Bragg reflectors to be promising candidates. The pyramids were fabricated by molecular-beam epitaxy, electron-beam lithography and a subsequent wet-chemical etching process using a sacrificial AlAs layer. Measured Q-factors of optical modes in single pyramids reach values up to 650. A finite-difference time-domain simulation assuming a simplified cone-shaped geometry suggests possible Q-factors up to 3600. To enhance the light confinement in the micro-pyramids we intend to overgrow the pyramidal facets with a Bragg mirror--results of preliminary tests are given.

  18. Nanomanufacturing : nano-structured materials made layer-by-layer.

    SciTech Connect (OSTI)

    Cox, James V.; Cheng, Shengfeng; Grest, Gary Stephen; Tjiptowidjojo, Kristianto; Reedy, Earl David, Jr.; Fan, Hongyou; Schunk, Peter Randall; Chandross, Michael Evan; Roberts, Scott A.

    2011-10-01

    Large-scale, high-throughput production of nano-structured materials (i.e. nanomanufacturing) is a strategic area in manufacturing, with markets projected to exceed $1T by 2015. Nanomanufacturing is still in its infancy; process/product developments are costly and only touch on potential opportunities enabled by growing nanoscience discoveries. The greatest promise for high-volume manufacturing lies in age-old coating and imprinting operations. For materials with tailored nm-scale structure, imprinting/embossing must be achieved at high speeds (roll-to-roll) and/or over large areas (batch operation) with feature sizes less than 100 nm. Dispersion coatings with nanoparticles can also tailor structure through self- or directed-assembly. Layering films structured with these processes have tremendous potential for efficient manufacturing of microelectronics, photovoltaics and other topical nano-structured devices. This project is designed to perform the requisite R and D to bring Sandia's technology base in computational mechanics to bear on this scale-up problem. Project focus is enforced by addressing a promising imprinting process currently being commercialized.

  19. Two-stage epitaxial growth of vertically-aligned SnO2 nano-rods on(001) ceria

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Solovyov, Vyacheslav F. [Brookhaven National Lab. (BNL), Upton, NY (United States); Wu, Li-jun [Brookhaven National Lab. (BNL), Upton, NY (United States); Rupich, Martin W. [American Superconductor, Devens, MA (United States); Sathyamurthy, Srivatsan [American Superconductor, Devens, MA (United States); Li, Xiaoping [American Superconductor, Devens, MA (United States); Li, Qiang [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2014-12-01

    Growth of high-aspect ratio oriented tin oxide, SnO2, nano-rods is complicated by a limited choice of matching substrates. We show that a (001) cerium oxide, CeO2, surface uniquely enables epitaxial growth of tin-oxide nano-rods via a two-stage process. First, (100) oriented nano-wires coat the ceria surface by lateral growth, forming a uniaxially-textured SnO2 deposit. Second, vertical SnO2nano-rods nucleate on the deposit by homoepitaxy. We demonstrate growth of vertically oriented 1-2 ?m long nano-rods with an average diameter of ?20 nm.

  20. Two-stage epitaxial growth of vertically-aligned SnO2 nano-rods on(001) ceria

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Solovyov, Vyacheslav F.; Wu, Li-jun; Rupich, Martin W.; Sathyamurthy, Srivatsan; Li, Xiaoping; Li, Qiang

    2014-09-20

    Growth of high-aspect ratio oriented tin oxide, SnO2, nano-rods is complicated by a limited choice of matching substrates. We show that a (001) cerium oxide, CeO2, surface uniquely enables epitaxial growth of tin-oxide nano-rods via a two-stage process. First, (100) oriented nano-wires coat the ceria surface by lateral growth, forming a uniaxially-textured SnO2 deposit. Second, vertical SnO2nano-rods nucleate on the deposit by homoepitaxy. We demonstrate growth of vertically oriented 1-2 ?m long nano-rods with an average diameter of ?20 nm.

  1. Micro-combustor for gas turbine engine

    DOE Patents [OSTI]

    Martin, Scott M. (Oviedo, FL)

    2010-11-30

    An improved gas turbine combustor (20) including a basket (26) and a multiplicity of micro openings (29) arrayed across an inlet wall (27) for passage of a fuel/air mixture for ignition within the combustor. The openings preferably have a diameter on the order of the quenching diameter; i.e. the port diameter for which the flame is self-extinguishing, which is a function of the fuel mixture, temperature and pressure. The basket may have a curved rectangular shape that approximates the shape of the curved rectangular shape of the intake manifolds of the turbine.

  2. Polygonal micro-whirlpools induced in ferrofluids

    E-Print Network [OSTI]

    Marcin Bacia; Weronika Lamperska; Jan Masajada; Slawomir Drobczynski; Maciej Marc

    2015-04-23

    We report on the observation of the polygonal whirlpools in the thin layer of ferrofluid under illumination with a laser beam carrying optical vortex and in the presence of a vertical magnetic field. This kind of structures have attracted attention after discovering a hexagonal storm in Saturns atmosphere. Our polygonal whirlpools were created in a closed system (no free surfaces) in micro scale (whirlpool diameter less than 20 micrometers) by the use of holographic optical tweezers. The polygonal shape was changed by varying the magnetic field strength or value of the optical vortex topological charge.

  3. The Durham Micro-Optics Programme

    E-Print Network [OSTI]

    J. Schmoll; C. M. Dubbeldam; D. J. Robertson; J. Yao

    2005-09-22

    The Durham Microoptics Programme was established to develop key components to be used for integral field spectrographs for upcoming instrumentation projects, focussing on currently existing telescopes as well as on the next generation of ELTs. These activities include monolithic multi-optics machining and grinding, optical surface improvement using various post polishing techniques and replication of micro-optical components. While these developments have mostly slicer-type IFUs in mind, also new types of microlens arrays are in development for fiber based high contrast IFU systems.

  4. Theory of a triangular micro-robot

    E-Print Network [OSTI]

    Vladimir A. Vladimirov

    2012-10-02

    In this paper we study the self-propulsion of a triangular micro-robot (or triangle-robot) which consists of three spheres connected by three rods; the rods' lengths are changing independently and periodically. Using the asymptotic procedure containing the two-timing method and distinguished limit arguments, we obtain analytic expressions for self-propulsion velocity the angular velocity. Our calculations show that a triangle-robot rotates with constant angular velocity around its centroid, while the centroid moves in a circle. The important special case of zero angular velocity represents rectilinear translational self-propulsion with constant velocity.

  5. The MicroBooNE Experiment - Collaboration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired Solar FuelTechnologyTel: Name:Department ofThe DOE Tours MicroBooNE! -

  6. The MicroBooNE Experiment - Collaboration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopment TopMetathesisSediments and Related J.TheMicroBooNE In the

  7. The MicroBooNE Experiment - Collaboration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopment TopMetathesisSediments and Related J.TheMicroBooNE In

  8. ARM - Evaluation Product - Micro-ARSCL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments? WeDatastreamstps DocumentationAtlanticENA Contacts ENAProductsHSRL CorrectedVaporProductsMicro-ARSCL

  9. ARM - Campaign Instrument - uav-proteus-micro

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments? We would love to hear from you! Send us a notegovInstrumentstdmaaltus Comments? We wouldproteus-micro

  10. Helio Micro Utility Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam: Energyarea, California | Open Energyreport |Helio Micro

  11. Webel Micro Power JV | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (Utility Company)Idaho)Vossloh KiepeWebel Micro Power JV Jump to:

  12. Category:Micro-Earthquake | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButte County,Camilla, Georgia:Geothermal RegulatoryMicro-Earthquake Jump to:

  13. MicroBooNE Proposal Addendum March

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCentermillionStockpile StewardshipO'ConnorFirstMicroBooNE Proposal

  14. Webinar: Micro-Structural Mitigation Strategies for PEM Fuel Cells

    Broader source: Energy.gov [DOE]

    Video recording of the Fuel Cell Technologies Office webinar, Micro-Structural Mitigation Strategies for PEM Fuel Cells, originally presented on November 19, 2013.

  15. A probabilistic approach to microRNA-target binding

    SciTech Connect (OSTI)

    Ogul, Hasan; Umu, Sinan U.; Bioinformatics Program, Informatics Institute, Middle East Technical University, Cankaya TR-06800, Ankara ; Tuncel, Y. Yener; Akkaya, Mahinur S.

    2011-09-16

    Highlights: {yields} A new probabilistic model is introduced for microRNA-target binding. {yields} The new model significantly outperforms RNAHybrid and miRTif. {yields} The experiments can unveil the effects of the type and directions of distinct base pairings. -- Abstract: Elucidation of microRNA activity is a crucial step in understanding gene regulation. One key problem in this effort is how to model the pairwise interactions of microRNAs with their targets. As this interaction is strongly mediated by their sequences, it is desired to set-up a probabilistic model to explain the binding preferences between a microRNA sequence and the sequence of a putative target. To this end, we introduce a new model of microRNA-target binding, which transforms an aligned duplex to a new sequence and defines the likelihood of this sequence using a Variable Length Markov Chain. It offers a complementary representation of microRNA-mRNA pairs for microRNA target prediction tools or other probabilistic frameworks of integrative gene regulation analysis. The performance of present model is evaluated by its ability to predict microRNA-target mRNA interaction given a mature microRNA sequence and a putative mRNA binding site. In regard to classification accuracy, it outperforms two recent methods based on thermodynamic stability and sequence complementarity. The experiments can also unveil the effects of base pairing types and non-seed region in duplex formation.

  16. Micro-Earthquake At Long Valley Caldera Geothermal Area (Stroujkova...

    Open Energy Info (EERE)

    Micro-Earthquake At Long Valley Caldera Geothermal Area (Stroujkova & Malin, 2001) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  17. Transfer Printed Microcells with Micro-Optic Concentrators for...

    Office of Scientific and Technical Information (OSTI)

    Printed Microcells with Micro-Optic Concentrators for Low Cost, High Performance Photovoltaic Modules Citation Details In-Document Search Title: Transfer Printed Microcells with...

  18. Evaluation of Biomaterials Using Micro-Computerized Tomography

    SciTech Connect (OSTI)

    Torris, A. T. Arun; Columbus, K. C. Soumya; Saaj, U. S.; Krishnan, Kalliyana V. [Dental Products Laboratory, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala-695012 (India); Nair, Manitha B. [Transmission Electron Microscopy Laboratory, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala-695012 (India)

    2008-09-26

    Micro-computed tomography or Micro-CT is a high resolution, non-invasive, x-ray scanning technique that allows precise three-dimensional imaging and quantification of micro-architectural and structural parameters of objects. Tomographic reconstruction is based on a cone-beam convolution-back-projection algorithm. Micro-architectural and structural parameters such as porosity, surface area to volume ratio, interconnectivity, pore size, wall thickness, anisotropy and cross-section area of biomaterials and bio-specimens such as trabecular bone, polymer scaffold, bio-ceramics and dental restorative were evaluated through imaging and computer aided manipulation of the object scan data sets.

  19. Assessment of the Technical Potential for Micro-Cogeneration...

    Open Energy Info (EERE)

    Assessment of the Technical Potential for Micro-Cogeneration in Small Commercial Buildings across the United States Jump to: navigation, search Name Assessment of the Technical...

  20. Micro Chemical Vapor Deposition for the Synthesis of Nanomaterials

    E-Print Network [OSTI]

    Zhou, Qin

    2011-01-01

    Journal of MicroElectroMechanical Systems, vol. 20, pp. 9-Chair MEMS (Microelectromechanical Systems) technologiesby MEMS (Microelectromechanical Systems) technologies many

  1. Applications of non-imaging micro-optic systems

    E-Print Network [OSTI]

    Baker, Katherine Anne

    2012-01-01

    A. Rabl. Active Solar Collectors and Their Applications. (planar micro-optic solar collectors," Opt. Express 19, A673-Luminescent greenhouse collector for solar radiation," Appl.

  2. Overview of Tritium Betavoltaic Power for Micro Sensors | Department...

    Office of Environmental Management (EM)

    Tritium Betavoltaic Power for Micro Sensors More Documents & Publications Studies on Lithium Manganese Rich MNC Composite Cathodes Vehicle Technologies Office Merit Review 2014:...

  3. MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION...

    Open Energy Info (EERE)

    LibraryAdd to library Conference Proceedings: MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN THE COSO GETHERMAL FIELD, CALIFORNIA Abstract High...

  4. USING MICRO-SEISMICITY AND SEISMIC VELOCITIES TO MAP SUBSURFACE...

    Open Energy Info (EERE)

    USING MICRO-SEISMICITY AND SEISMIC VELOCITIES TO MAP SUBSURFACE GEOLOGIC AND HYDROLOGIC STRUCTURE WITHIN THE COSO GEOTHERMAL FIELD, CALIFORNIA Jump to: navigation, search OpenEI...

  5. Using Micro-Seismicity and Seismic Velocities to Map Subsurface...

    Open Energy Info (EERE)

    Using Micro-Seismicity and Seismic Velocities to Map Subsurface Geologic and Hydrologic Structure Within the Coso Geothermal Field California Jump to: navigation, search OpenEI...

  6. Micro-Modular Biopower System for Cooling, Heating and Power

    SciTech Connect (OSTI)

    2006-08-01

    This Congressionally-mandated project seeks to test a micro-modular biopower system for use on the Mount Wachusett Community College (MWCC) campus.

  7. Remote optical sensing on the nanometer scale with a bowtie aperture nano-antenna on a SNOM fiber tip

    E-Print Network [OSTI]

    Atie, Elie M; Eter, Ali El; Salut, Roland; Nedeljkovic, Dusan; Tannous, Tony; Baida, Fadi I; Grosjean, Thierry

    2015-01-01

    Plasmonic nano-antennas have proven the outstanding ability of sensing chemical and physical processes down to the nano-meter scale. Sensing is usually achieved within the highly confined optical fields generated resonantly by the nano-antennas, i.e. in contact to the nano-structures. In these paper, We demonstrate the sensing capability of nano-antennas to their larger scale environment, well beyond their plasmonic confinement volume, leading to the concept of 'remote' (non contact) sensing on the nano-meter scale. On the basis of a bowtie-aperture nano-antenna (BNA) integrated at the apex of a SNOM fiber tip, we introduce an ultra-compact, move-able and background-free optical nano-sensor for the remote sensing of a silicon surface (up to distance of 300 nm). Sensitivity of the BNA to its large scale environment is high enough to expect the monitoring and control of the spacing between the nano-antenna and a silicon surface with sub-nano-meter accuracy. This work paves the way towards a new class of nano-po...

  8. A nanoparticle bed micro-reactor with high syngas yield for moderate temperature micro-scale SOFC power plants

    E-Print Network [OSTI]

    Daraio, Chiara

    . c The micro-reactor is able to achieve higher syngas yield for n-butane and propane than state systems. It is shown that the presented micro-reactor is able to produce syngas (COţH2) efficiently from n-butane. The present micro-reactor is able to achieve syngas yield as high as 60% for n-butane and 50% for propane

  9. Designing a Micro-Mechanical Transistor

    SciTech Connect (OSTI)

    Mainieri, R.

    1999-06-03

    This is the final report of a three-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). Micro-mechanical electronic systems are chips with moving parts. They are fabricated with the same techniques that are used to manufacture electronic chips, sharing their low cost. Micro-mechanical chips can also contain electronic components. By combining mechanical parts with electronic parts it becomes possible to process signal mechanically. To achieve designs comparable to those obtained with electronic components it is necessary to have a mechanical device that can change its behavior in response to a small input - a mechanical transistor. The work proposed will develop the design tools for these complex-shaped resonant structures using the geometrical ray technique. To overcome the limitations of geometrical ray chaos, the dynamics of the rays will be studied using the methods developed for the study of nonlinear dynamical systems. T his leads to numerical methods that execute well in parallel computer architectures, using a limited amount of memory and no inter-process communication.

  10. MicroShield/ISOCS gamma modeling comparison.

    SciTech Connect (OSTI)

    Sansone, Kenneth R

    2013-08-01

    Quantitative radiological analysis attempts to determine the quantity of activity or concentration of specific radionuclide(s) in a sample. Based upon the certified standards that are used to calibrate gamma spectral detectors, geometric similarities between sample shape and the calibration standards determine if the analysis results developed are qualitative or quantitative. A sample analyzed that does not mimic a calibrated sample geometry must be reported as a non-standard geometry and thus the results are considered qualitative and not quantitative. MicroShieldR or ISOCSR calibration software can be used to model non-standard geometric sample shapes in an effort to obtain a quantitative analytical result. MicroShieldR and Canberra's ISOCSR software contain several geometry templates that can provide accurate quantitative modeling for a variety of sample configurations. Included in the software are computational algorithms that are used to develop and calculate energy efficiency values for the modeled sample geometry which can then be used with conventional analysis methodology to calculate the result. The response of the analytical method and the sensitivity of the mechanical and electronic equipment to the radionuclide of interest must be calibrated, or standardized, using a calibrated radiological source that contains a known and certified amount of activity.

  11. Wetting kinetics of water nano-droplet containing non-surfactant nanoparticles: A molecular dynamics study

    SciTech Connect (OSTI)

    Lu, Gui; Department of Mechanical Engineering and Mechanics, Drexel University, Philadelphia, Pennsylvania 19104 ; Hu, Han; Sun, Ying E-mail: ysun@coe.drexel.edu; Duan, Yuanyuan E-mail: ysun@coe.drexel.edu

    2013-12-16

    In this Letter, dynamic wetting of water nano-droplets containing non-surfactant gold nanoparticles on a gold substrate is examined via molecular dynamics simulations. The results show that the addition of non-surfactant nanoparticles hinders the nano-second droplet wetting process, attributed to the increases in both surface tension of the nanofluid and friction between nanofluid and substrate. The droplet wetting kinetics decreases with increasing nanoparticle loading and water-particle interaction energy. The observed wetting suppression and the absence of nanoparticle ordering near the contact line of nano-sized droplets differ from the wetting behaviors reported from nanofluid droplets of micron size or larger.

  12. 2/24/2014 Micro-Windmills to Recharge Cell Phones http://www.jadecadelina.com/innovation/micro-windmills-recharge-phones/ 1/2

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    2/24/2014 Micro-Windmills to Recharge Cell Phones http://www.jadecadelina.com/innovation/micro-windmills & Technology Search this site... R ECEN T P OSTS welcome Micro-Windmills to Recharge Cell Phones Super Ty phoon (required) Micro-Windmills to Recharge Cell Phones January 16, 2014 · by mr.jade · in Energy, Innovation

  13. 2/6/2014 Micro Windmills to Recharge Cellphones | New Technology| iFeelTechno.com http://ifeeltechno.com/micro-windmills/ 1/3

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    2/6/2014 Micro Windmills to Recharge Cellphones | New Technology| iFeelTechno.com http://ifeeltechno.com/micro-windmills Micro Windmills to Recharge Cellphones | New Technology Nowa days Mobile has become a basic need to this problem. They have developed micro windmills just 1.8mm wide. These windmills can transform wind energy

  14. HOME NEWS OPINION ENTERTAINMENT SPORTS BLOGS CLASSIFIEDS CALENDAR MULTIM Page 1 of 4The Shorthorn -Micro-scale technology used to create micro-Maverick pride

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    HOME NEWS OPINION ENTERTAINMENT SPORTS BLOGS CLASSIFIEDS CALENDAR MULTIM Page 1 of 4The Shorthorn - Micro-scale technology used to create micro-Maverick pride 4/21/2010http-scale technology used to create micro-Maverick pride Microscale technology used to create microMaverick pride

  15. High performance capacitors using nano-structure multilayer materials fabrication

    DOE Patents [OSTI]

    Barbee, T.W. Jr.; Johnson, G.W.; O`Brien, D.W.

    1995-05-09

    A high performance capacitor is fabricated from nano-structure multilayer materials, such as by controlled, reactive sputtering, and having very high energy-density, high specific energy and high voltage breakdown. The multilayer capacitors, for example, may be fabricated in a ``notepad`` configuration composed of 200-300 alternating layers of conductive and dielectric materials so as to have a thickness of 1 mm, width of 200 mm, and length of 300 mm, with terminals at each end of the layers suitable for brazing, thereby guaranteeing low contact resistance and high durability. The notepad capacitors may be stacked in single or multiple rows (series-parallel banks) to increase the voltage and energy density. 5 figs.

  16. High performance capacitors using nano-structure multilayer materials fabrication

    DOE Patents [OSTI]

    Barbee, T.W. Jr.; Johnson, G.W.; O`Brien, D.W.

    1996-01-23

    A high performance capacitor is described which is fabricated from nano-structure multilayer materials, such as by controlled, reactive sputtering, and having very high energy-density, high specific energy and high voltage breakdown. The multilayer capacitors, for example, may be fabricated in a ``notepad`` configuration composed of 200--300 alternating layers of conductive and dielectric materials so as to have a thickness of 1 mm, width of 200 mm, and length of 300 mm, with terminals at each end of the layers suitable for brazing, thereby guaranteeing low contact resistance and high durability. The ``notepad`` capacitors may be stacked in single or multiple rows (series-parallel banks) to increase the voltage and energy density. 5 figs.

  17. High performance capacitors using nano-structure multilayer materials fabrication

    DOE Patents [OSTI]

    Barbee, Jr., Troy W. (Palo Alto, CA); Johnson, Gary W. (Livermore, CA); O'Brien, Dennis W. (Livermore, CA)

    1995-01-01

    A high performance capacitor fabricated from nano-structure multilayer materials, such as by controlled, reactive sputtering, and having very high energy-density, high specific energy and high voltage breakdown. The multilayer capacitors, for example, may be fabricated in a "notepad" configuration composed of 200-300 alternating layers of conductive and dielectric materials so as to have a thickness of 1 mm, width of 200 mm, and length of 300 mm, with terminals at each end of the layers suitable for brazing, thereby guaranteeing low contact resistance and high durability. The "notepad" capacitors may be stacked in single or multiple rows (series-parallel banks) to increase the voltage and energy density.

  18. Optical gradient force nano-imaging and -spectroscopy

    E-Print Network [OSTI]

    Yang, Honghua U

    2015-01-01

    Nanoscale forces play an important role in different scanning probe microscopies, most notably atomic force microscopy (AFM). In contrast, in scanning near-field optical microscopy (SNOM) a light-induced coupled local optical polarization between tip and sample is typically detected by scattering to the far field. Measurements of the optical gradient force associated with that optical near-field excitation would offer a novel optical scanning probe modality. Here we provide a generalized theory of optical gradient force nano-imaging and -spectroscopy. We quantify magnitude and distance dependence of the optical gradient force and its spectral response. We show that the optical gradient force is dispersive for single particle electronic and vibrational resonances, distinct from recent claims of its experimental observation. In contrast, the force can be absorptive for collective resonances. We provide a guidance for its measurements and distinction from competing processes such as thermal expansion.

  19. Synthesis of nano-crystalline multifibrous zirconia needle

    SciTech Connect (OSTI)

    Biswas, Mridula; Bandyopadhyay, Siddhartha

    2013-06-01

    Graphical abstract: - Highlights: • Zirconia needles have been successfully prepared by simple inorganic sol–gel route. • The shape of the needles was retained after firing with aspect ratio > 400. • Needles are composed of multiple fibres. • Fibres are composed of nano crystals. - Abstract: Zirconia needles have been successfully synthesized using a simple inorganic sol–gel process without using any template. The method employs mixture of zirconium oxychloride octahydrate and sulphuric acid in aqueous medium. This process requires heat treatment at 40 °C for 2 h in an oven for nucleus formation. Complete formation of needle occurs after 17 days. The green needle retained its original shape after calcination at 1200 °C. Fired needles were of 1–2 cm in length and 5–50 ?m in diameter and possess monoclinic phase. Needles are composed of multiple fibres. Depending on the heat treatment temperature, crystallite size varies in the range of 8 to around 300 nm.

  20. High performance capacitors using nano-structure multilayer materials fabrication

    DOE Patents [OSTI]

    Barbee, Jr., Troy W. (Palo Alto, CA); Johnson, Gary W. (Livermore, CA); O'Brien, Dennis W. (Livermore, CA)

    1996-01-01

    A high performance capacitor fabricated from nano-structure multilayer materials, such as by controlled, reactive sputtering, and having very high energy-density, high specific energy and high voltage breakdown. The multilayer capacitors, for example, may be fabricated in a "notepad" configuration composed of 200-300 alternating layers of conductive and dielectric materials so as to have a thickness of 1 mm, width of 200 mm, and length of 300 mm, with terminals at each end of the layers suitable for brazing, thereby guaranteeing low contact resistance and high durability. The "notepad" capacitors may be stacked in single or multiple rows (series-parallel banks) to increase the voltage and energy density.

  1. Integration of Distributed Energy The CERTS MicroGrid Concept

    E-Print Network [OSTI]

    Resources The MicroGrid Concept Appendices Prepared for Transmission Reliability Program Office of PowerIntegration of Distributed Energy Resources The CERTS MicroGrid Concept CALIFORNIA ENERGY;Preface The U.S. Electricity Grid Today The U.S. electric power system is in the midst of a fundamental

  2. Micro-turbo-generator design and fabrication: A preliminary study

    SciTech Connect (OSTI)

    Wiegele, T.G.

    1996-12-31

    The size and weight of portable electronic products are often dictated by the physical characteristics of the power supply system. The design of energy storage systems is therefore critical to market competitiveness. An alternative to energy storage is proposed in this paper which relies on a very small power generation system which converts a pressure difference in a gas into electrical power: a micro-turbo-generator. The design of the micro-turbo-generator involved combining two very different machines, a micro-generator and a micro-turbine, into a single device which could be fabricated within the constraints of current microelectronic processing techniques. Research into power generation on the micro-scale has begun to take place in the form of electromagnetic micro-motor design and fabrication. These variable reluctance machines can be transformed into power generation devices by implementing accurate rotor position sensing, high-speed current switching and a means for inducing rotor motion. This leads to the implementation of a switched reluctance generator, which is well-understood on the macro-scale but has not been attempted on the micro-scale. The most significant hurdle facing researchers is the task of coupling a prime mover, such as a micro-turbine, to the rotor of a power generation device efficiently and effectively while maintaining relative simplicity in the fabrication procedures. The design presented here offers a potential solution to this problem.

  3. Controlling a group of microCHPs: planning and realization

    E-Print Network [OSTI]

    Hurink, Johann

    -called Virtual Power Plant (VPP) (see for a German example [2]). For possible methodologies of the control of a group of domestic Combined Heat and Power (microCHP) appliances, which together form a Virtual Power a conventional power plant, and more. To effect these possibilities the individual microCHPs need

  4. Volumetric Reconstruction in the MicroCAT Tomography System

    E-Print Network [OSTI]

    Cates, Josh

    Volumetric Reconstruction in the MicroCAT Tomography System A Thesis Presented for the Master sustained me my entire academic career. ii #12; Abstract A new system for x­ray cone­beam micro­tomography that is based on two­dimensional (fan­beam) reconstruction techniques. The disparity between the actual scanner

  5. Micro-Architecture Independent Analytical Processor Performance and Power Modeling

    E-Print Network [OSTI]

    Eeckhout, Lieven

    Micro-Architecture Independent Analytical Processor Performance and Power Modeling Sam Van den models that allow us to produce performance and power estimates across a large design space almost models. In this work we present a micro-architecture independent profiler and associated analytical

  6. Scientists create `micro-windmills' that could power your cellphone

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    create `micro-windmills' that could power your cellphone Posted on January 12, 2014 by kontim in HARDWARE. The 1.8mm-wide windmills look pretty fragile, but UTA says that their flexible nickel alloy components can stand up to strong winds without fracturing. Page 1 of 3Scientists create 'micro-windmills

  7. Micro/Nanoscale Heat Transfer: Interfacial Effects Dominate the

    E-Print Network [OSTI]

    Kostic, Milivoje M.

    conduction 2. Convective heat transfer 3. Thermal radiation 4. Conclusions 1.1 Thermal conductivity3/15/2012 1 Micro/Nanoscale Heat Transfer: Interfacial Effects Dominate the Heat Transfer 1 Xing/nanoscale heat transfer becomes critical. What is the dominant factor in micro/nanosclae heat transfer

  8. Micro Renewable Energy Systems: Synergizing Technology, Economics and Policy

    E-Print Network [OSTI]

    Micro Renewable Energy Systems: Synergizing Technology, Economics and Policy Narayanan Komerath in developing a renewable energy economy based on devices of less than 5KW , suitable for retail marketing suggested. Keywords ­ Micro Renewable Energy, Public Policy, Algae, Biofuel, Energy Efficiency I

  9. SMART FUEL CELL OPERATED RESIDENTIAL MICRO-GRID COMMUNITY

    SciTech Connect (OSTI)

    Dr. Mohammad S. Alam University of South Alabama ECE Department, EEB 75 Mobile, AL 36688-0002 Phone: 251-460-6117 Fax: 251-460-6028

    2005-04-13

    To build on the work of year one by expanding the smart control algorithm developed to a micro-grid of ten houses; to perform a cost analysis; to evaluate alternate energy sources; to study system reliability; to develop the energy management algorithm, and to perform micro-grid software and hardware simulations.

  10. Analytical study on arbitrary waveform generation by MEMS micro mirror arrays.

    E-Print Network [OSTI]

    Kalyoncu, Salih K; Huang, Yuewang; Song, Qi; Boyraz, Ozdal

    2012-01-01

    waveform generation by MEMS micro mirror arrays Salih K.generation technique by using MEMS digital micro-mirrormodulator [11,12]. Up to date MEMS micro-mirror arrays have

  11. Nano-Electro-Mechanical (NEM) Relay Devices and Technology for Ultra-Low Energy Digital Integrated Circuits

    E-Print Network [OSTI]

    Nathanael, Rhesa

    2012-01-01

    Alon, and T. -J. K. Liu, "Mechanical computing redux: Relaysof integrated micro-electro-mechanical (MEM) switch circuitsof integrated micro-electro-mechanical (MEM) switch circuits

  12. Micro mass spectrometer on a chip.

    SciTech Connect (OSTI)

    Cruz, Dolores Y.; Blain, Matthew Glenn; Fleming, James Grant

    2005-11-01

    The design, simulation, fabrication, packaging, electrical characterization and testing analysis of a microfabricated a cylindrical ion trap ({mu}CIT) array is presented. Several versions of microfabricated cylindrical ion traps were designed and fabricated. The final design of the individual trap array element consisted of two end cap electrodes, one ring electrode, and a detector plate, fabricated in seven tungsten metal layers by molding tungsten around silicon dioxide (SiO{sub 2}) features. Each layer of tungsten is then polished back in damascene fashion. The SiO{sub 2} was removed using a standard release processes to realize a free-hung structure. Five different sized traps were fabricated with inner radii of 1, 1.5, 2, 5 and 10 {micro}m and heights ranging from 3-24 {micro}m. Simulations examined the effects of ion and neutral temperature, the pressure and nature of cooling gas, ion mass, trap voltage and frequency, space-charge, fabrication defects, and other parameters on the ability of micrometer-sized traps to store ions. The electrical characteristics of the ion trap arrays were determined. The capacitance was 2-500 pF for the various sized traps and arrays. The resistance was in the order of 1-2 {Omega}. The inductance of the arrays was calculated to be 10-1500 pH, depending on the trap and array sizes. The ion traps' field emission characteristics were assessed. It was determined that the traps could be operated up to 125 V while maintaining field emission currents below 1 x 10{sup -15} A. The testing focused on using the 5-{micro}m CITs to trap toluene (C{sub 7}H{sub 8}). Ion ejection from the traps was induced by termination of the RF voltage applied to the ring electrode and current measured on the collector electrode suggested trapping of ions in 1-10% of the traps. Improvements to the to the design of the traps were defined to minimize voltage drop to the substrate, thereby increasing trapping voltage applied to the ring electrode, and to allow for electron injection into, ion ejection from, and optical access to the trapping region.

  13. Superconducting nanowire single-photon detectors integrated with optical nano-antennae

    E-Print Network [OSTI]

    Berggren, Karl K.

    Optical nano-antennae have been integrated with semiconductor lasers to intensify light at the nanoscale and photodiodes to enhance photocurrent. In quantum optics, plasmonic metal structures have been used to enhance ...

  14. Mid-Infrared Single-Photon Detection Using Superconducting Nanowires Integrated with Nano-Antennae

    E-Print Network [OSTI]

    Berggren, Karl K.

    We present some major challenges of mid-infrared superconducting nanowire single-photon detector technology and our device design with nano-antenna integration to address these challenges.

  15. Nano-High: Lawrence Berkeley National Laboratory Lecture on the "compassionate instinct"

    Broader source: Energy.gov [DOE]

    Nano-High, a program of the Lawrence Berkeley National Laboratory, is a series of free Saturday morning talks by internationally recognized leaders in scientific research. The talks are designed...

  16. Nano-High: Lawrence Berkeley National Laboratory Lecture on Bad Sugars

    Broader source: Energy.gov [DOE]

    Nano-High, a program of the Lawrence Berkeley National Laboratory, is a series of free Saturday morning talks by internationally recognized leaders in scientific research. The talks are designed...

  17. "Plastic" Solar Cells: Self-Assembly of Bulk HeterojunctionNano...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    "Plastic" Solar Cells: Self-Assembly of Bulk Heterojunction Nano-Materials by Spontaneous Phase Separation October 20, 2009 at 3pm36-428 Alan Heeger Department of Chemistry,...

  18. Characterization of interphase in natural fiber reinforced polymer composites using nano-

    E-Print Network [OSTI]

    Gray, Matthew

    1 Characterization of interphase in natural fiber reinforced polymer composites using nano Results · Future works INTRODUCTION Natural fiberNatural fiber--reinforcedreinforced polymer consumption,properties, low energy consumption, carbon dioxide neutral, no residuescarbon dioxide neutral

  19. Phase transformations of nano-sized cubic boron nitride to white graphene and white graphite

    SciTech Connect (OSTI)

    Dang, Hongli; Liu, Yingdi; Xue, Wenhua; Anderson, Ryan S.; Sewell, Cody R. [Department of Physics and Engineering Physics, The University of Tulsa, Tulsa, Oklahoma 74104 (United States); Xue, Sha; Crunkleton, Daniel W. [Department of Chemical Engineering, The University of Tulsa, Tulsa, Oklahoma 74104 (United States); Institute of Alternate Energy, The University of Tulsa, Tulsa, Oklahoma 74104 (United States); Shen, Yaogen [Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon (Hong Kong); Wang, Sanwu, E-mail: sanwu-wang@utulsa.edu [Department of Physics and Engineering Physics, The University of Tulsa, Tulsa, Oklahoma 74104 (United States); Institute of Alternate Energy, The University of Tulsa, Tulsa, Oklahoma 74104 (United States)

    2014-03-03

    We report quantum-mechanical investigations that predict the formation of white graphene and nano-sized white graphite from the first-order phase transformations of nano-sized boron nitride thin-films. The phase transformations from the nano-sized diamond-like structure, when the thickness d?>?1.4?nm, to the energetically more stable nano-sized white graphite involve low activation energies of less than 1.0?eV. On the other hand, the diamond-like structure transforms spontaneously to white graphite when d???1.4?nm. In particular, the two-dimensional structure with single-layer boron nitride, the so-called white graphene, could be formed as a result of such transformation.

  20. Nano-High: Lawrence Berkeley National Laboratory Lecture on Good Sugars

    Broader source: Energy.gov [DOE]

    Nano-High, a program of the Lawrence Berkeley National Laboratory, is a series of free Saturday morning talks by internationally recognized leaders in scientific research. The talks are designed...

  1. Transport modeling of simple fluids and nano-colloids : thermal conduction mechanisms and coarse projection

    E-Print Network [OSTI]

    Eapen, Jacob, 1968-

    2006-01-01

    In the first part of this thesis, the modes of microscopic energy fluctuations governing heat flow in nano-colloids are quantitatively assessed by combining linear response theory with molecular dynamics (MD) simulations. ...

  2. Toughening of Epoxies Based on Self-Assembly of Nano-Sized Amphiphilic Block Copolymer Micelles 

    E-Print Network [OSTI]

    Liu, Jia

    2010-01-16

    to be BCP micelle nanoparticle cavitation, followed by matrix shear banding, which mainly accounted for the observed remarkable toughening effect. The unexpected ?nano-cavitation? phenomenon cannot be predicted by existing physical models. The plausible...

  3. Ion Irradiation-induced nano-crystallization metallic glasses (amorphous metal) 

    E-Print Network [OSTI]

    Tran, Minh Hong

    2013-02-28

    This project idea is proposed in order to develop the understanding of the mechanisms responsible for Nano-crystal phase formation when metallic glasses (amorphous) is exposed under the high energy ion irradiation and is quantified the resulting...

  4. X-ray and neutron scattering from nano-mgantic clusters | The...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    X-ray and neutron scattering from nano-mgantic clusters The student will participate in hands on X-ray scattering experiments on bio-inspired inorganic materials (i.e., magnetic...

  5. Fabrication and testing of nano-optical structures for advanced photonics and quantum information processing applications 

    E-Print Network [OSTI]

    Khan, Mughees Mahmood

    2009-05-15

    Interest in the fabrication of nano-optical structures has increased dramatically in recent years, due to advances in lithographic resolution. In particular, metallic nanostructures are of interest because of their ability ...

  6. Floating-point unit (FPU) designs with nano-electromechanical (NEM) relays

    E-Print Network [OSTI]

    Dutta, Sumit, S.M. Massachusetts Institute of Technology

    2013-01-01

    Nano-electromechanical (NEM) relays are an alternative to CMOS transistors as the fabric of digital circuits. Circuits with NEM relays offer energy-efficiency benefits over CMOS since they have zero leakage power and are ...

  7. Design and characterization of Hover Nano Aerial Vehicle (HNAV) propulsion system

    E-Print Network [OSTI]

    Sato, Sho, Ph. D. Massachusetts Institute of Technology

    2008-01-01

    On October 4th 2005, DARPA released a request for proposals for a Nano-Air Vehicle (NAV) program. The program sought to develop an advanced urban reconnaissance vehicle. According the requirement imposed by DARPA, the NAV ...

  8. Modelling Heat Transport Across Nano-scale Material Interfaces for Next-generation Electronic Devices

    E-Print Network [OSTI]

    Milgram, Paul

    ) thermal boundary resistance between two dissimilar semiconductor materials using a combinationModelling Heat Transport Across Nano-scale Material Interfaces for Next-generation Electronic) with customized thermal transport properties. The scattering of thermal energy carriers at fabricated interfaces

  9. Scanning tunneling microscopic studies of SiO2 thin film supported metal nano-clusters 

    E-Print Network [OSTI]

    Min, Byoung Koun

    2005-11-01

    This dissertation is focused on understanding heterogeneous metal catalysts supported on oxides using a model catalyst system of SiO2 thin film supported metal nano-clusters. The primary technique applied to this study is scanning tunneling...

  10. Hybrid Nano Carbon Fiber/Graphene Platelet-Based High-Capacity...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation es009jang2011o.pdf More Documents & Publications Hybrid Nano...

  11. Charge-Transfer Induced Magnetic Field Effects of Nano-Carbon Heterojunctions

    E-Print Network [OSTI]

    Qin, Wei; Gong, Maogang; Shastry, Tejas; Hersam, Mark C.; Ren, Shenqiang

    2014-08-22

    modeling. By controlling SWCNT concentrations and interfacial interactions, nano-carbon heterojunctions exhibit tunability of charge-transfer density and room temperature magnetoconductance of 2.8% under 100?mT external magnetic field. External stimuli...

  12. Hard turning micro-machine tool

    DOE Patents [OSTI]

    DeVor, Richard E; Adair, Kurt; Kapoor, Shiv G

    2013-10-22

    A micro-scale apparatus for supporting a tool for hard turning comprises a base, a pivot coupled to the base, an actuator coupled to the base, and at least one member coupled to the actuator at one end and rotatably coupled to the pivot at another end. A tool mount is disposed on the at least one member. The at least one member defines a first lever arm between the pivot and the tool mount, and a second lever arm between the pivot and the actuator. The first lever arm has a length that is less than a length of the second lever arm. The actuator moves the tool mount along an arc.

  13. Stochastic Chemical Reactions in Micro-domains

    E-Print Network [OSTI]

    D. Holcman; Z. Schuss

    2004-12-25

    Traditional chemical kinetics may be inappropriate to describe chemical reactions in micro-domains involving only a small number of substrate and reactant molecules. Starting with the stochastic dynamics of the molecules, we derive a master-diffusion equation for the joint probability density of a mobile reactant and the number of bound substrate in a confined domain. We use the equation to calculate the fluctuations in the number of bound substrate molecules as a function of initial reactant distribution. A second model is presented based on a Markov description of the binding and unbinding and on the mean first passage time of a molecule to a small portion of the boundary. These models can be used for the description of noise due to gating of ionic channels by random binding and unbinding of ligands in biological sensor cells, such as olfactory cilia, photo-receptors, hair cells in the cochlea.

  14. Micro-column plasma emission liquid chromatograph

    DOE Patents [OSTI]

    Gay, Don D. (Aiken, SC)

    1984-01-01

    In a direct current plasma emission spectrometer for use in combination with a micro-column liquid chromatograph, an improved plasma source unit. The plasma source unit includes a quartz capillary tube having an inlet means, outlet off gas means and a pair of spaced electrodes defining a plasma region in the tube. The inlet means is connected to and adapted to receive eluant of the liquid chromatograph along with a stream of plasma-forming gas. There is an opening through the wall of the capillary tube penetrating into the plasma region. A soft glass capillary light pipe is disposed at the opening, is connected to the spectrometer, and is adapted to transmit light passing from the plasma region to the spectrometer. There is also a source of electromotive force connected to the electrodes sufficient to initiate and sustain a plasma in the plasma region of the tube.

  15. Loss characterization in microLoss characterization in micro--cavitiescavities using the thermalusing the thermal bistabilitybistability effecteffect

    E-Print Network [OSTI]

    Loss characterization in microLoss characterization in micro--cavitiescavities using Scattering limited Q #12;Quick Test for Loss CharacterizationQuick Test for Loss Characterization #12 to characterize different loss mechanisms in these structuresdifferent loss mechanisms in these structures nn

  16. A High Aspect Ratio Parylene Micro-Stencil for Large Scale Micro-Patterning for MEMS Applications

    E-Print Network [OSTI]

    Dokmeci, Mehmet

    A High Aspect Ratio Parylene Micro-Stencil for Large Scale Micro- Patterning for MEMS Applications and selective metal deposition onto fragile MEMS devices. This paper will discuss the details of the parylene substrates (lacking chemical and thermal stability) and on released MEMS (fragile) devices. Hence, Shadow

  17. Nano-Structured Mesoporous Silica Wires with Intra-Wire Lamellae via Evaporation-Induced Self-Assembly in Space-Confined Channels

    SciTech Connect (OSTI)

    Hu, Michael Z. [ORNL; Shi, Donglu [University of Cincinnati; Blom, Douglas Allen [ORNL

    2014-01-01

    Evaporation-induced self-assembly (EISA) of silica sol-gel ethanol-water solution mixtures with block-copolymer were studied inside uniform micro/nano channels. Nano-structured mesoporous silica wires, with various intra-wire self-assembly structures including lamellae, were prepared via EISA process but in space-confined channels with the diameter ranging from 50 nm to 200 nm. Membranes made of anodized aluminum oxide (AAO) and track-etched polycarbonate (EPC) were utilized as the arrays of space-confined channels (i.e., 50, 100, and 200-nm EPC and 200-nm AAO) for infiltration and drying of mixture solutions; these substrate membranes were submerged in mixture solutions consisting of a silica precursor, a structure-directing agent, ethanol, and water. After the substrate channels were filled with the solution under vacuum impregnation, the membrane was removed from the solution and dried in air. The silica precursor used was tetra-ethyl othosilicate (TEOS), and the structure-directing agent employed was triblock copolymer Pluronic-123 (P123). It was found that the formation of the mesoporous nanostructures in silica wires within uniform channels were significantly affected by the synthesis conditions including (1) pre-assemble TEOS aging time, (2) the evaporation rate during the vacuum impregnation, and (3) the air-dry temperature. The obtained intra-wire structures, including 2D-hexagonal rods and lamellae, were studied by scanning transmission electron microscopy (STEM). A steric hindrance effect seems to explain well the observed polymer-silica mesophase formation tailored by TEOS aging time. The evaporation effect, air-drying effect, and AAO-vs-EPC substrate effect on the mesoporous structure of the formed silica wires were also presented and discussed.

  18. Nano-Continuum Modeling of a Nuclear Glass Specimen Altered for 25 Years

    SciTech Connect (OSTI)

    Steefel, Carl

    2014-01-06

    The purpose of this contribution is to report on preliminary nano-continuum scale modeling of nuclear waste glass corrosion. The focus of the modeling is an experiment involving a French glass SON68 specimen leached for 25 years in a granitic environment. In this report, we focus on capturing the nano-scale concentration profiles. We use a high resolution continuum model with a constant grid spacing of 1 nanometer to investigate the glass corrosion mechanisms.

  19. Bridging the Information Gap: Remote Sensing and Micro Hydropower Feasibility in Data-Scarce Regions

    E-Print Network [OSTI]

    Muller, Marc Francois

    2015-01-01

    exist [16], the optimization used in Micro Hydro [em]Poweroptimization algorithm to specific zones within their community. Conclusion This chapter presents Micro Hydro [

  20. Fuel injector Holes (Fabrication of Micro-Orifices for Fuel Injectors...

    Office of Environmental Management (EM)

    injector Holes (Fabrication of Micro-Orifices for Fuel Injectors) Fuel injector Holes (Fabrication of Micro-Orifices for Fuel Injectors) 2009 DOE Hydrogen Program and Vehicle...

  1. Micro Cooling, Heating, and Power (Micro-CHP) and Bio-Fuel Center, Mississippi State University

    SciTech Connect (OSTI)

    Louay Chamra

    2008-09-26

    Initially, most micro-CHP systems will likely be designed as constant-power output or base-load systems. This implies that at some point the power requirement will not be met, or that the requirement will be exceeded. Realistically, both cases will occur within a 24-hour period. For example, in the United States, the base electrical load for the average home is approximately 2 kW while the peak electrical demand is slightly over 4 kW. If a 3 kWe micro- CHP system were installed in this situation, part of the time more energy will be provided than could be used and for a portion of the time more energy will be required than could be provided. Jalalzadeh-Azar [6] investigated this situation and presented a comparison of electrical- and thermal-load-following CHP systems. In his investigation he included in a parametric analysis addressing the influence of the subsystem efficiencies on the total primary energy consumption as well as an economic analysis of these systems. He found that an increase in the efficiencies of the on-site power generation and electrical equipment reduced the total monthly import of electricity. A methodology for calculating performance characteristics of different micro-CHP system components will be introduced in this article. Thermodynamic cycles are used to model each individual prime mover. The prime movers modeled in this article are a spark-ignition internal combustion engine (Otto cycle) and a diesel engine (Diesel cycle). Calculations for heat exchanger, absorption chiller, and boiler modeling are also presented. The individual component models are then linked together to calculate total system performance values. Performance characteristics that will be observed for each system include maximum fuel flow rate, total monthly fuel consumption, and system energy (electrical, thermal, and total) efficiencies. Also, whether or not both the required electrical and thermal loads can sufficiently be accounted for within the system specifications is observed. Case study data for various micro-CHP system configurations have been discussed and compared. Comparisons are made of the different prime mover/fuel combinations. Also, micro- CHP monthly energy cost results are compared for each system configuration to conventional monthly utility costs for equivalent monthly building power, heating, and cooling requirements.

  2. Miniature modified Faraday cup for micro electron beams

    DOE Patents [OSTI]

    Teruya, Alan T. (Livermore, CA); Elmer, John W. (Danville, CA); Palmer, Todd A. (Livermore, CA); Walton, Chris C. (Berkeley, CA)

    2008-05-27

    A micro beam Faraday cup assembly includes a refractory metal layer with an odd number of thin, radially positioned traces in this refractory metal layer. Some of the radially positioned traces are located at the edge of the micro modified Faraday cup body and some of the radially positioned traces are located in the central portion of the micro modified Faraday cup body. Each set of traces is connected to a separate data acquisition channel to form multiple independent diagnostic networks. The data obtained from the two diagnostic networks are combined and inputted into a computed tomography algorithm to reconstruct the beam shape, size, and power density distribution.

  3. Preparations, properties, and applications of periodic nano arrays using anodized aluminum oxide and di-block copolymer

    E-Print Network [OSTI]

    Noh, Kunbae

    2011-01-01

    alumina nanotubes by atomic layer deposition. Nano Letters,example, by using atomic layer deposition of aluminum oxidedeposition or atomic layer deposition, for various other

  4. r XXXX American Chemical Society A dx.doi.org/10.1021/nl202386p |Nano Lett. XXXX, XXX, 000000 pubs.acs.org/NanoLett

    E-Print Network [OSTI]

    work demonstrated the preparation of vitrified protein samples across graphene oxide supports.17­000 LETTER pubs.acs.org/NanoLett Oxidative Doping Renders Graphene Hydrophilic, Facilitating Its Use the use of thin crystalline supports in biological TEM. Graphene hasrenewedinterestin crystalline

  5. r XXXX American Chemical Society A dx.doi.org/10.1021/nl201470j |Nano Lett. XXXX, XXX, 000000 pubs.acs.org/NanoLett

    E-Print Network [OSTI]

    Cui, Yi

    , and the storage of renewable energy.1,2 To meet these demanding applications, Li-ion batteries with high specific­000 LETTER pubs.acs.org/NanoLett Interconnected Silicon Hollow Nanospheres for Lithium-Ion Battery Anodes-performance Li-ion batteries is critically important for use in portable electronics, electric vehicles

  6. r XXXX American Chemical Society A dx.doi.org/10.1021/nl202630n |Nano Lett. XXXX, XXX, 000000 pubs.acs.org/NanoLett

    E-Print Network [OSTI]

    Cui, Yi

    S Supporting Information Rechargeable Li-ion batteries are currently one of the most important energy storage­000 LETTER pubs.acs.org/NanoLett Novel Size and Surface Oxide Effects in Silicon Nanowires as Lithium Battery it is important to design Received: July 31, 2011 ABSTRACT: With its high specific capacity, silicon

  7. Diffraction-limited ultrasensitive molecular nano-arrays with singular nano-cone Yunshan Wang, Ting-Chou Chang, Paul R. Stoddart, and Hsueh-Chia Chang

    E-Print Network [OSTI]

    Chang, Hsueh-Chia

    Wang, Ting-Chou Chang, Paul R. Stoddart, and Hsueh-Chia Chang Citation: Biomicrofluidics 8, 021101-arrays with singular nano-cone scattering Yunshan Wang,1 Ting-Chou Chang,1 Paul R. Stoddart,2 and Hsueh-Chia Chang1 1

  8. Photocatalytic studies of Ho–Zr–O nano-composite with controllable composition and defects

    SciTech Connect (OSTI)

    Du, Weimin, E-mail: duweimin75@gmail.com [College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000 (China); Zhao, Guoyan; Chang, Hongxun; Shi, Fei; Zhu, Zhaoqiang [College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000 (China); Qian, Xuefeng [School of Chemistry and Chemical Technology, Shanghai Jiao Tong University, Shanghai 200240 (China)

    2013-09-15

    With the help of sol–gel method assisted by melting salt, a series of Ho–Zr–O nano-composite with controllable composition and defects have been successfully prepared. Characterization results show that the positions, intensity, and width of the X-ray diffraction peaks of the products have a regular variation with the increase of zirconium element which implies the gradual changes of crystal spacing and product size. At the same time, the molar ratios between holmium and zirconium ions are consistent with the chemical formula and both of them are uniformly distributed in products further showing the perfect formation of targeted materials. Optical properties reveal that diversified defect forms of Ho–Zr–O nano-composite lead to the different absorptions of visible light. Photocatalytic experiments demonstrate Zr{sub 0.8}Ho{sub 0.2}O{sub 2??} nano-crystals have excellent visible-light-responsive photocatalytic activities on some familiar dyes (e.g.: methylene blue and Rhodamine B) which results from the special defect structure, better absorption of visible light and larger specific surface area. It follows that Zr{sub 0.8}Ho{sub 0.2}O{sub 2??} nano-crystals are a new kind of visible-light-responsive photocatalysts with better prospects in conversion and utilization of solar energy. Also, the present melting salt assisted route might be generalized to synthesize other AxByOz composite oxide nano-crystals with more complicated structures. - Highlights: • Ho–Zr–O nano-composite with controllable composition and defects has been obtained. • Diversified defect forms of products lead to the different visible light absorption. • Zr{sub 0.8}Ho{sub 0.2}O{sub 2??} nano-crystals have excellent photocatalytic activities.

  9. Protection of cisplatin-induced spermatotoxicity, DNA damage and chromatin abnormality by selenium nano-particles

    SciTech Connect (OSTI)

    Rezvanfar, Mohammad Amin; Rezvanfar, Mohammad Ali; Shahverdi, Ahmad Reza; Ahmadi, Abbas; Baeeri, Maryam; Mohammadirad, Azadeh; Abdollahi, Mohammad

    2013-02-01

    Cisplatin (CIS), an anticancer alkylating agent, induces DNA adducts and effectively cross links the DNA strands and so affects spermatozoa as a male reproductive toxicant. The present study investigated the cellular/biochemical mechanisms underlying possible protective effect of selenium nano-particles (Nano-Se) as an established strong antioxidant with more bioavailability and less toxicity, on reproductive toxicity of CIS by assessment of sperm characteristics, sperm DNA integrity, chromatin quality and spermatogenic disorders. To determine the role of oxidative stress (OS) in the pathogenesis of CIS gonadotoxicity, the level of lipid peroxidation (LPO), antioxidant enzymes including superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) and peroxynitrite (ONOO) as a marker of nitrosative stress (NS) and testosterone (T) concentration as a biomarker of testicular function were measured in the blood and testes. Thirty-two male Wistar rats were equally divided into four groups. A single IP dose of CIS (7 mg/kg) and protective dose of Nano-Se (2 mg/kg/day) were administered alone or in combination. The CIS-exposed rats showed a significant increase in testicular and serum LPO and ONOO level, along with a significant decrease in enzymatic antioxidants levels, diminished serum T concentration and abnormal histologic findings with impaired sperm quality associated with increased DNA damage and decreased chromatin quality. Coadministration of Nano-Se significantly improved the serum T, sperm quality, and spermatogenesis and reduced CIS-induced free radical toxic stress and spermatic DNA damage. In conclusion, the current study demonstrated that Nano-Se may be useful to prevent CIS-induced gonadotoxicity through its antioxidant potential. Highlights: ? Cisplatin (CIS) affects spermatozoa as a male reproductive toxicant. ? Effect of Nano-Se on CIS-induced spermatotoxicity was investigated. ? CIS-exposure induces oxidative sperm DNA damage and impairs steroidogenesis. ? Nano-Se retained sperm quality against CIS-induced free radicals toxic stress.

  10. Modeling and simulation of electronic structure, material interface and random doping in nano-electronic devices

    SciTech Connect (OSTI)

    Chen Duan [Department of Mathematics, Michigan State University, East Lansing, MI 48824 (United States); Wei Guowei [Department of Mathematics, Michigan State University, East Lansing, MI 48824 (United States); Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824 (United States)], E-mail: wei@math.msu.edu

    2010-06-20

    The miniaturization of nano-scale electronic devices, such as metal oxide semiconductor field effect transistors (MOSFETs), has given rise to a pressing demand in the new theoretical understanding and practical tactic for dealing with quantum mechanical effects in integrated circuits. Modeling and simulation of this class of problems have emerged as an important topic in applied and computational mathematics. This work presents mathematical models and computational algorithms for the simulation of nano-scale MOSFETs. We introduce a unified two-scale energy functional to describe the electrons and the continuum electrostatic potential of the nano-electronic device. This framework enables us to put microscopic and macroscopic descriptions in an equal footing at nano-scale. By optimization of the energy functional, we derive consistently coupled Poisson-Kohn-Sham equations. Additionally, layered structures are crucial to the electrostatic and transport properties of nano-transistors. A material interface model is proposed for more accurate description of the electrostatics governed by the Poisson equation. Finally, a new individual dopant model that utilizes the Dirac delta function is proposed to understand the random doping effect in nano-electronic devices. Two mathematical algorithms, the matched interface and boundary (MIB) method and the Dirichlet-to-Neumann mapping (DNM) technique, are introduced to improve the computational efficiency of nano-device simulations. Electronic structures are computed via subband decomposition and the transport properties, such as the I-V curves and electron density, are evaluated via the non-equilibrium Green's functions (NEGF) formalism. Two distinct device configurations, a double-gate MOSFET and a four-gate MOSFET, are considered in our three-dimensional numerical simulations. For these devices, the current fluctuation and voltage threshold lowering effect induced by the discrete dopant model are explored. Numerical convergence and model well-posedness are also investigated in the present work.

  11. Intrinsic dissipation in a nano-mechanical resonator

    SciTech Connect (OSTI)

    Kunal, K.; Aluru, N. R., E-mail: aluru@illinois.edu [Department of Mechanical Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States)

    2014-09-07

    We investigate the effect of size on intrinsic dissipation in nano-structures. We use molecular dynamics simulation and study dissipation under two different modes of deformation: stretching and bending mode. In the case of stretching deformation (with uniform strain field), dissipation takes place due to Akhiezer mechanism. For bending deformation, in addition to the Akhiezer mechanism, the spatial temperature gradient also plays a role in the process of entropy generation. Interestingly, we find that the bending modes have a higher Q factor in comparison with the stretching deformation (under the same frequency of operation). Furthermore, with the decrease in size, the difference in Q factor between the bending and stretching deformation becomes more pronounced. The lower dissipation for the case of bending deformation is explained to be due to the surface scattering of phonons. A simple model, for phonon dynamics under an oscillating strain field, is considered to explain the observed variation in dissipation rate. We also studied the scaling of Q factor with initial tension, in a beam under flexure. We develop a continuum theory to explain the observed results.

  12. Bioforensics: Characterization of biological weapons agents by NanoSIMS

    SciTech Connect (OSTI)

    Weber, P K; Ghosal, S; Leighton, T J; Wheeler, K E; Hutcheon, I D

    2007-02-26

    The anthrax attacks of Fall 2001 highlight the need to develop forensic methods based on multiple identifiers to determine the origin of biological weapons agents. Genetic typing methods (i.e., DNA and RNA-based) provide one attribution technology, but genetic information alone is not usually sufficient to determine the provenance of the material. Non-genetic identifiers, including elemental and isotopic signatures, provide complementary information that can be used to identify the means, geographic location and date of production. Under LDRD funding, we have successfully developed the techniques necessary to perform bioforensic characterization with the NanoSIMS at the individual spore level. We have developed methods for elemental and isotopic characterization at the single spore scale. We have developed methods for analyzing spore sections to map elemental abundance within spores. We have developed rapid focused ion beam (FIB) sectioning techniques for spores to preserve elemental and structural integrity. And we have developed a high-resolution depth profiling method to characterize the elemental distribution in individual spores without sectioning. We used these newly developed methods to study the controls on elemental abundances in spores, characterize the elemental distribution of in spores, and to study elemental uptake by spores. Our work under this LDRD project attracted FBI and DHS funding for applied purposes.

  13. Electromechanically induced absorption in a circuit nano-electromechanical system

    E-Print Network [OSTI]

    Fredrik Hocke; Xiaoqing Zhou; Albert Schliesser; Tobias J. Kippenberg; Hans Huebl; Rudolf Gross

    2012-09-20

    A detailed analysis of electromechanically induced absorption (EMIA) in a circuit nano-electromechanical hybrid system consisting of a superconducting microwave resonator coupled to a nanomechanical beam is presented. By performing two-tone spectroscopy experiments we have studied EMIA as a function of the drive power over a wide range of drive and probe tone detunings. We find good quantitative agreement between experiment and theoretical modeling based on the Hamiltonian formulation of a generic electromechanical system. We show that the absorption of microwave signals in an extremely narrow frequency band (\\Delta\\omega/2\\pi <5 Hz) around the cavity resonance of about 6 GHz can be adjusted over a range of more than 25 dB on varying the drive tone power by a factor of two. Possible applications of this phenomenon include notch filters to cut out extremely narrow frequency bands (< Hz) of a much broader band of the order of MHz defined by the resonance width of the microwave cavity. The amount of absorption as well as the filtered frequency is tunable over the full width of the microwave resonance by adjusting the power and frequency of the drive field. At high drive power we observe parametric microwave amplification with the nanomechanical resonator. Due to the very low loss rate of the nanomechanical beam the drive power range for parametric amplification is narrow, since the beam rapidly starts to perform self-oscillations.

  14. Surface nano-patterning through styrene adsorption on Si(100)

    E-Print Network [OSTI]

    A. Calzolari; A. Ruini; M. J. Caldas; E. Molinari

    2005-07-27

    We present an ab initio study of the structural and electronic properties of styrene molecules adsorbed on the dimerized Si(100) surface at different coverages, ranging from the single-molecule to the full monolayer. The adsorption mechanism primarily involves the vinyl group via a [2+2] cycloaddition process that leads to the formation of covalent Si-C bonds and a local surface derelaxation, while it leaves the phenyl group almost unperturbed. The investigation of the functionalized surface as a function of the coverage (e.g. 0.5 -- 1 ML) and of the substrate reconstruction reveals two major effects. The first results from Si dimer-vinyl interaction and concerns the controlled variation of the energy bandgap of the interface. The second is associated to phenyl-phenyl interactions, which gives rise to a regular pattern of electronic wires at surface, stemming from the pi-pi coupling. These findings suggest a rationale for tailoring the surface nano-patterning of the surface, in a controlled way.

  15. FUEL CELL/MICRO-TURBINE COMBINED CYCLE

    SciTech Connect (OSTI)

    Larry J. Chaney; Mike R. Tharp; Tom W. Wolf; Tim A. Fuller; Joe J. Hartvigson

    1999-12-01

    A wide variety of conceptual design studies have been conducted that describe ultra-high efficiency fossil power plant cycles. The most promising of these ultra-high efficiency cycles incorporate high temperature fuel cells with a gas turbine. Combining fuel cells with a gas turbine increases overall cycle efficiency while reducing per kilowatt emissions. This study has demonstrated that the unique approach taken to combining a fuel cell and gas turbine has both technical and economic merit. The approach used in this study eliminates most of the gas turbine integration problems associated with hybrid fuel cell turbine systems. By using a micro-turbine, and a non-pressurized fuel cell the total system size (kW) and complexity has been reduced substantially from those presented in other studies, while maintaining over 70% efficiency. The reduced system size can be particularly attractive in the deregulated electrical generation/distribution environment where the market may not demand multi-megawatt central stations systems. The small size also opens up the niche markets to this high efficiency, low emission electrical generation option.

  16. Micro-position sensor using faraday effect

    DOE Patents [OSTI]

    McElfresh, Michael (Livermore, CA); Lucas, Matthew (Pittsburgh, PA); Silveira, Joseph P. (Tracy, CA); Groves, Scott E. (Brentwood, CA)

    2007-02-27

    A micro-position sensor and sensing system using the Faraday Effect. The sensor uses a permanent magnet to provide a magnetic field, and a magneto-optic material positioned in the magnetic field for rotating the plane of polarization of polarized light transmitted through the magneto-optic material. The magnet is independently movable relative to the magneto-optic material so as to rotate the plane of polarization of the polarized light as a function of the relative position of the magnet. In this manner, the position of the magnet relative to the magneto-optic material may be determined from the rotated polarized light. The sensing system also includes a light source, such as a laser or LED, for producing polarized light, and an optical fiber which is connected to the light source and to the magneto-optic material at a sensing end of the optical fiber. Processing electronics, such as a polarimeter, are also provided for determining the Faraday rotation of the plane of polarization of the back-reflected polarized light to determine the position of the magnet relative to the sensing end of the optical fiber.

  17. Micro-mechanical logic for field produceable gate arrays

    E-Print Network [OSTI]

    Prakash, Manu

    2005-01-01

    A paradigm of micro-mechanical gates for field produceable logic is explored. A desktop manufacturing system is sought after which is capable of printing functional logic devices in the field. A logic scheme which induces ...

  18. Silicon micro-mold and method for fabrication

    SciTech Connect (OSTI)

    Morales, Alfredo M.

    2005-01-11

    The present invention describes a method for rapidly fabricating a robust 3-dimensional silicon micro-mold for use in preparing complex metal micro-components. The process begins by depositing a conductive metal layer onto one surface of a silicon wafer. A thin photoresist and a standard lithographic mask are then used to transfer a trace image pattern onto the opposite surface of the wafer by exposing and developing the resist. The exposed portion of the silicon substrate is anisotropically etched through the wafer thickness down to conductive metal layer to provide an etched pattern consisting of a series of rectilinear channels and recesses in the silicon which serve as the silicon micro-mold. Microcomponents are prepared with this mold by first filling the mold channels and recesses with a metal deposit, typically by electroplating, and then removing the silicon micro-mold by chemical etching.

  19. Numerical simulation of micro-fluidic passive and active mixers 

    E-Print Network [OSTI]

    Kumar, Saurabh

    2002-01-01

    the flow rate. Hence, output channels exhibit predetermined concentration values, which allow concentration dependent chemistry experiments in each output channel. Convective diffusive transport in this micro mixer is studied numerically and theoretically...

  20. Integrated optical switching using titanium nitride micro electromechanical systems

    E-Print Network [OSTI]

    Takahashi, Satoshi, Ph. D. Massachusetts Institute of Technology

    2006-01-01

    This thesis reports an integrated optical wavelength specific switching device for applications in optical integrated circuits (OICs) based on micro electromechanical systems (MEMS). The device consists of a ring resonator ...