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1

Sandia National Labs: PCNSC: Departments: Surface and Interface Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Home Home About Us Departments Radiation, Nano Materials, & Interface Sciences > Radiation & Solid Interactions > Nanomaterials Sciences > Surface & Interface Sciences Semiconductor & Optical Sciences Energy Sciences Small Science Cluster Business Office News Partnering Research Carlos Gutierrez Carlos Gutierrez Manager Resources Department Folder 01114 Sharepoint Visit Our Labs Grest Group Nanorheology Research (514 KB PDF) Interfacial Force Microscopy Group (701 KB PDF) Research Image Gallery (3,698 KB PDF) Surface Imaging Laboratory Technology - Metals for tomorrow Tina Nenoff Departments Surface and Interface Sciences The Surface and Interface Sciences Department is engaged in a diverse portfolio of leading-edge research projects related to the understanding

2

Scanning Surface Potential Microscopy of Spore Adhesion on Surfaces  

SciTech Connect

The adhesion of spores of Bacillus anthracis - the cause of anthrax and a likely biological threat - to solid surfaces is an important consideration in cleanup after an accidental or deliberate release. However, because of safety concerns, directly studying B. anthracis spores with advanced instrumentation is problematic. As a first step, we are examining the electrostatic potential of Bacillus thuringiensis (Bt), which is a closely related species that is often used as a simulant to study B. anthracis. Scanning surface potential microscopy (SSPM), also known as Kelvin probe force microscopy (KPFM), was used to investigate the influence of relative humidity (RH) on the surface electrostatic potential of Bt that had adhered to silica, mica, or gold substrates. AFM/SSPM side-by-side images were obtained separately in air, at various values of RH, after an aqueous droplet with spores was applied on each surface and allowed to dry before measurements. In the SSPM images, a negative potential on the surface of the spores was observed compared with that of the substrates. The surface potential decreased as the humidity increased. Spores were unable to adhere to a surface with an extremely negative potential, such as mica.

Lee, Ida [University of Tennessee, Knoxville (UTK); Chung, Eunhyea [Georgia Institute of Technology; Kweon, Hyojin [Georgia Institute of Technology; Yiacoumi, Sotira [Georgia Institute of Technology; Tsouris, Costas [ORNL

2012-01-01T23:59:59.000Z

3

Surface Protection for Enhanced Materials Performance: Science ...  

Science Conference Proceedings (OSTI)

About this Symposium. Meeting, Materials Science & Technology 2013. Symposium, Surface Protection for Enhanced Materials Performance: Science, ...

4

Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Microscopy Home Staff Only Microscopy Group Staff InstrumentationCapabilities The Advanced Microscopy Laboratory (AML) Microscopy User Centers: MAUC SHaRE Research Highlights...

5

Surface science and heterogeneous catalysis  

DOE Green Energy (OSTI)

The catalytic reactions studied include hydrocarbon conversion over platinum, the transition metal-catalyzed hydrogenation of carbon monoxide, and the photocatalyzed dissociation of water over oxide surfaces. The method of combined surface science and catalytic studies is similar to those used in synthetic organic chemistry. The single-crystal models for the working catalyst are compared with real catalysts by comparing the rates of cyclopropane ring opening on platinum and the hydrogenation of carbon monoxide on rhodium single crystal surface with those on practical commercial catalyst systems. Excellent agreement was obtained for these reactions. This document reviews what was learned about heterogeneous catalysis from these surface science approaches over the past 15 years and present models of the active catalyst surface.

Somorjai, G.A.

1980-05-01T23:59:59.000Z

6

Opportunities for Multimodal CARS Microscopy in Materials Science  

Science Conference Proceedings (OSTI)

Symposium, Optical and X-ray Imaging Techniques for Material Characterization. Presentation Title, Opportunities for Multimodal CARS Microscopy in Materials ...

7

EMSL: Capabilities: Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Microscopy Microscopy Additional Information Meet the Microscopy Experts Related EMSL User Projects Microscopy Tools are Applied to all Science Themes Watch the Microscopy capability video on EMSL's YouTube channel and read the transcript. Microscopy brochure Quiet Wing brochure EMSL hosts a variety of sophisticated microscopy instruments, including electron microscopes, optical microscopes, scanning probe microscopes, and computer-controlled microscopes for automated particle analysis. These tools are used to image a range of sample types with nanoscale-and even atomic-resolution with applications to surface, environmental, biogeochemical, atmospheric, and biological science. Each state-of-the-art instrument and customized capability is equipped with features for specific

8

REPORT OF THE SURFACE SCIENCE WORKSHOP  

E-Print Network (OSTI)

surface-science-related problems of energy technology.the first day, various energy technology areas were reviewedon the various energy technologies? How would you optimize

Somorjai, G.A.

2010-01-01T23:59:59.000Z

9

Electron and Scanning Probe Microscopies | U.S. DOE Office of Science (SC)  

NLE Websites -- All DOE Office Websites (Extended Search)

Electron and Scanning Probe Microscopies Electron and Scanning Probe Microscopies Materials Sciences and Engineering (MSE) Division MSE Home About Research Areas Energy Frontier Research Centers (EFRCs) DOE Energy Innovation Hubs BES Funding Opportunities The Computational Materials and Chemical Sciences Network (CMCSN) Theoretical Condensed Matter Physics Scientific Highlights Reports and Activities Principal Investigators' Meetings BES Home Research Areas Electron and Scanning Probe Microscopies Print Text Size: A A A RSS Feeds FeedbackShare Page This research area supports basic research in condensed matter physics and materials physics using electron scattering and microscopy and scanning probe techniques. The research includes experiments and theory to understand the atomic, electronic, and magnetic structures of materials.

10

Surface science | Princeton Plasma Physics Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

Surface science Surface science Subscribe to RSS - Surface science The study of the chemical and physical processes that occur in the interface between two phases of matter, such as solid to liquid or liquid to gas. Bruce E Koel Bruce Koel is professor of chemical and biological engineering at Princeton University. He is associated faculty in chemistry at the Princeton Institute for the Science and Technology of Materials (PRISM); associated faculty in the Princeton Department of Mechanical and Aerospace Engineering, and a collaborator on the National Spherical Torus Experiment at PPPL. Koel is a Fellow of the American Association for the Advancement of Science, the American Physical Society and the American Vacuum Society, and a member of the governing board of the Council for Chemical Research.

11

Depth Charge: Using Atomic Force Microscopy to Study ...  

Science Conference Proceedings (OSTI)

... right circumstances, surface science instruments such ... Electric force microscopy can be used to ... superior strength and electrical conductance, added ...

2010-10-05T23:59:59.000Z

12

LANL: Facility Focus, MST-6 Materials Surface Science Investigations Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

07-018 Spring 2007 07-018 Spring 2007 T he MST-6 Materials Surface Science Investigations Laboratory is home to a one-of-a-kind integrated instrument for surface science and materials research, allowing scientists at Los Alamos National Laboratory the unique opportunity to perform coordinated research using ultra-high vacuum surface measurements, in situ reactions, and materials synthesis tools. Housed in the Materials Science Laboratory, the surface science instrument features an ultra-clean integrated system for surface analysis and in situ surface modification, thin film deposition, and surface gas reactions. This integrated system is used for analytical surface science; materials electronic

13

UNIVERSITY OF CALIFORNIA, SANTA CRUZ Life Sciences Microscopy Center Facilities Manager  

E-Print Network (OSTI)

analysis; instrument maintenance and technical support; usage management; maintaining the facility web site or training in a higher-education environment; expertise in both light microscopy and electron microscopy

California at Santa Cruz, University of

14

Dynamic Processes in Biology, Chemistry, and Materials Science: Opportunities for UltraFast Transmission Electron Microscopy - Workshop Summary Report  

SciTech Connect

This report summarizes a 2011 workshop that addressed the potential role of rapid, time-resolved electron microscopy measurements in accelerating the solution of important scientific and technical problems. A series of U.S. Department of Energy (DOE) and National Academy of Science workshops have highlighted the critical role advanced research tools play in addressing scientific challenges relevant to biology, sustainable energy, and technologies that will fuel economic development without degrading our environment. Among the specific capability needs for advancing science and technology are tools that extract more detailed information in realistic environments (in situ or operando) at extreme conditions (pressure and temperature) and as a function of time (dynamic and time-dependent). One of the DOE workshops, Future Science Needs and Opportunities for Electron Scattering: Next Generation Instrumentation and Beyond, specifically addressed the importance of electron-based characterization methods for a wide range of energy-relevant Grand Scientific Challenges. Boosted by the electron optical advancement in the last decade, a diversity of in situ capabilities already is available in many laboratories. The obvious remaining major capability gap in electron microscopy is in the ability to make these direct in situ observations over a broad spectrum of fast (µs) to ultrafast (picosecond [ps] and faster) temporal regimes. In an effort to address current capability gaps, EMSL, the Environmental Molecular Sciences Laboratory, organized an Ultrafast Electron Microscopy Workshop, held June 14-15, 2011, with the primary goal to identify the scientific needs that could be met by creating a facility capable of a strongly improved time resolution with integrated in situ capabilities. The workshop brought together more than 40 leading scientists involved in applying and/or advancing electron microscopy to address important scientific problems of relevance to DOE’s research mission. This workshop built on previous workshops and included three breakout sessions identifying scientific challenges in biology, biogeochemistry, catalysis, and materials science frontier areas of fundamental science that underpin energy and environmental science that would significantly benefit from ultrafast transmission electron microscopy (UTEM). In addition, the current status of time-resolved electron microscopy was examined, and the technologies that will enable future advances in spatio-temporal resolution were identified in a fourth breakout session.

Kabius, Bernd C.; Browning, Nigel D.; Thevuthasan, Suntharampillai; Diehl, Barbara L.; Stach, Eric A.

2012-07-25T23:59:59.000Z

15

REPORT OF THE SURFACE SCIENCE WORKSHOP  

E-Print Network (OSTI)

University J . Burton, Exxon Research s Engineering Co. W.of surfaces J. Burton, Exxon Research and Engineering Co.Laboratory J. Burton Exxon Res. & Engr. Co. J. Houston

Somorjai, G.A.

2010-01-01T23:59:59.000Z

16

REPORT OF THE SURFACE SCIENCE WORKSHOP  

E-Print Network (OSTI)

layers on metals in molten salts, (c) studies of the factorson electrolyte surfaces in molten salts. Problem; to developproperties of oxides in molten salts (including NaA102 in

Somorjai, G.A.

2010-01-01T23:59:59.000Z

17

Land Surface Reflectance: A Possible Earth Science  

E-Print Network (OSTI)

are in magenta, water bodies are outlined in white. MODIS Surface Reflectance South Africa From: E. Vermote, UMD correction (low, medium, high) ­ cloud and cloud shadow ­ snow flag ­ land/water flag · Supplemental information ­ Viewing geometry (view and solar zenith and azimuth angles) ­ Geolocation (lat

18

Book Review published by Analysis, 1997: Reflection Electron Microscopy and Spectroscopy for Surface Analysis, By Zhong Lin Wang  

E-Print Network (OSTI)

Book Review published by Analysis, 1997: Reflection Electron Microscopy and Spectroscopy for Surface Analysis, By Zhong Lin Wang Professor John F. Watts University of Surrey The book describes, but the author is considerate enough to define them all in the early pages of his book. The dust-cover notes

Wang, Zhong L.

19

Molecular surface science of heterogeneous catalysis. History and perspective  

DOE Green Energy (OSTI)

A personal account is given of how the author became involved with modern surface science and how it was employed for studies of the chemistry of surfaces and heterogeneous catalysis. New techniques were developed for studying the properties of the surface monolayers: Auger electron spectroscopy, LEED, XPS, molecular beam surface scattering, etc. An apparatus was developed and used to study hydrocarbon conversion reactions on Pt, CO hydrogenation on Rh and Fe, and NH/sub 3/ synthesis on Fe. A model has been developed for the working Pt reforming catalyst. The three molecular ingredients that control catalytic properties are atomic surface structure, an active carbonaceous deposit, and the proper oxidation state of surface atoms. 40 references, 21 figures. (DLC)

Somorjai, G.A.

1983-08-01T23:59:59.000Z

20

A molecular surface science study of the structure of adsorbates on surfaces: Importance to lubrication  

DOE Green Energy (OSTI)

The interaction and bonding of atoms and molecules on metal surfaces is explored under ultra-high vacuum conditions using a variety of surface science techniques: high resolution electron energy loss spectroscopy (HREELS), low energy electron diffraction (LEED), thermal desorption spectroscopy (TDS), Auger electron spectroscopy (AES), work function measurements, and second harmonic generation (SHG). 164 refs., 51 figs., 3 tabs.

Mate, C.M.

1986-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Electrical transport and mechanical properties of alkylsilane self-assembled monolayers on silicon surfaces probed by atomic force microscopy  

SciTech Connect

The correlation between molecular conductivity and mechanical properties (molecular deformation and frictional responses) of hexadecylsilane self-assembled monolayers was studied with conductive probe atomic force microscopy/friction force microscopy in ultrahigh vacuum. Current and friction were measured as a function of applied pressure, simultaneously, while imaging the topography of self-assembled monolayer molecule islands and silicon surfaces covered with a thin oxide layer. Friction images reveal lower friction over the molecules forming islands than over the bare silicon surface, indicating the lubricating functionality of alkylsilane molecules. By measuring the tunneling current change due to changing of the height of the molecular islands by tilting the molecules under pressure from the tip, we obtained an effective conductance decay constant ({beta}) of 0.52/{angstrom}.

Park, Jeong Young; Qi, Yabing; Ashby, Paul D.; Hendriksen, Bas L.M.; Salmeron, Miquel

2009-02-06T23:59:59.000Z

22

Ambient pressure photoelectron spectroscopy: a new tool for surface science and nanotechnology  

SciTech Connect

Progress in science often follows or parallels the development of new techniques. The optical microscope helped convert medicine and biology from a speculative activity in old times to today's sophisticated scientific disciplines. The telescope changed the study and interpretation of heavens from mythology to science. X-ray diffraction enabled the flourishing of solid state physics and materials science. The technique object of this review, Ambient Pressure Photoelectron Spectroscopy or APPES for short, has also the potential of producing dramatic changes in the study of liquid and solid surfaces, particularly in areas such as atmospheric, environment and catalysis sciences. APPES adds an important missing element to the host of techniques that give fundamental information, i.e., spectroscopy and microscopy, about surfaces in the presence of gases and vapors, as encountered in industrial catalysis and atmospheric environments. APPES brings electron spectroscopy into the realm of techniques that can be used in practical environments. Decades of surface science in ultra high vacuum (UHV) has shown the power of electron spectroscopy in its various manifestations. Their unique property is the extremely short elastic mean free path of electrons as they travel through condensed matter, of the order of a few atomic distances in the energy range from a few eV to a few thousand eV. As a consequence of this the information obtained by analyzing electrons emitted or scattered from a surface refers to the top first few atomic layers, which is what surface science is all about. Low energy electron diffraction (LEED), Auger electron spectroscopy (AES), X-ray photoelectron spectroscopy (XPS), Ultraviolet photoelectron spectroscopy (UPS), and other such techniques have been used for decades and provided some of the most fundamental knowledge about surface crystallography, composition and electronic structure available today. Unfortunately the high interaction cross section of electrons with matter also prevents them from traveling long distances unscattered in gas environments. Above the millibar pressure range this distance is reduced to less that a millimeter, effectively preventing its use in the most relevant environments, usually between millibars and atmospheric pressures. There is therefore a large gap of several orders of magnitude where information about surfaces is scarce because these powerful electron spectroscopies cannot operate. One characteristic of surfaces in ambient pressure environments is that they are covered by dense layers of molecules, even when their binding energy is weak. Water for example is known to form layers several molecules thick at room temperature in humid environments. Metals readily form oxide films several layers thick in oxygen atmospheres. Dense layers of adsorbed molecules can also be produced in ultra high vacuum, often by the simple and expedient method of cooling the sample to cryogenic temperatures. A large amount of data has been obtained in the past in UHV by surface scientists using this method. While this has provided valuable information it begs the question of whether the structures formed in this manner represent equilibrium structures or metastable ones, kinetically trapped due to high activation energies that cannot be overcome at low temperature. From a thermodynamic point of view is interesting to consider the entropic contribution to the Gibbs free energy, which we can call 'the pressure factor', equal to kT.logP. This factor amounts to a sizeable 0.3 eV difference at room temperature between UHV (<10{sup -8} Pascal) and atmospheric pressures. Such change if free energy can definitely result in changes in surface structure and stability. Entire areas of the phase diagram are out of reach due to the pressure gap. Even when cooling is not necessary, many surface treatments and most chemical reactions necessitate the presence of gases at pressures ranging from millibar to bars. What is the structure and chemical nature of the species formed on the surface in equilibrium with suc

Salmeron, Miquel; Salmeron, Miquel; Schlogl, Robert

2008-03-12T23:59:59.000Z

23

BNL | CFN: Electron Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

and chemistry at the atomic scale is crucial to modern materials science and nanotechnology. Advanced electron microscopy can provide the fundamental knowledge that will...

24

Advanced Developments in Electron Microscopy  

Science Conference Proceedings (OSTI)

About this Symposium. Meeting, Materials Science & Technology 2011. Symposium, Advanced Developments in Electron Microscopy. Sponsorship, MS&T ...

25

Electrocatalysis: A Direct Alcohol Fuel Cell and Surface Science Perspective  

Science Conference Proceedings (OSTI)

In this report, we discuss some of the advances in surface science and theory that have enabled a more detailed understanding of the mechanisms that govern the electrocatalysis. More specifically, we examine in detail the electrooxidation of C-1 and C-2 alcohol molecules in both acidic and basic media. A combination of detailed in situ spectroscopic measurements along with density functional theory calculations have helped to establish the mechanisms that control the reaction paths and the influence of acidic and alkaline media. We discuss some of the synergies and differences between electrocatalysis and aqueous phase heterogeneous catalysis. Such analyses begin to establish a common language and framework by which to compare as well as advance both fields. (C) 2012 Elsevier B.V. All rights reserved.

Braunchweig, B [University of Illinois, Urbana-Champaign; Hibbitts, David D [ORNL; Neurock, Matthew [University of Virginia; Wieckowski, A. [University of Illinois, Urbana-Champaign

2013-01-01T23:59:59.000Z

26

Electrocatalysis: A direct alcohol fuel cell and surface science perspective  

Science Conference Proceedings (OSTI)

In this report, we discuss some of the advances in surface science and theory that have ena bled a more detailed understanding of the mechanisms that govern the electrocatalysis.More specifically, we examine in detail the electrooxidation ofC1 and Cz alcohol molecules in both acidic and basic media. A combination of detailed in situ spectroscopic measurements along with density functional theory calculations have helped to establish the mechanisms that control the reaction paths and the innuence of acidic and alkaline media. We discuss some of the synergies and differences between electrocatalysis and aqueous phase heterogeneous catalysis.Such analyses begin to establish a common language and framework by which to compare as well as advance both fields.

Braunchweig, B [University of Illinois, Urbana-Champaign; Neurock, Matthew [University of Virginia; Wieckowski, A. [University of Illinois, Urbana-Champaign; Hibbitts, David D [ORNL

2012-01-01T23:59:59.000Z

27

Low Temperature Scanning Force Microscopy of the Si(111)-( 7x7) Surface  

Science Conference Proceedings (OSTI)

A low temperature scanning force microscope (SFM) operating in a dynamic mode in ultrahigh vacuum was used to study the Si(111)-(7x7) surface at 7.2 K. Not only the twelve adatoms but also the six rest atoms of the unit cell are clearly resolved for the first time with SFM. In addition, the first measurements of the short range chemical bonding forces above specific atomic sites are presented. The data are in good agreement with first principles computations and indicate that the nearest atoms in the tip and sample relax significantly when the tip is within a few Angstrom of the surface. (c) 2000 The American Physical Society.

Lantz, M. A. [Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, (Switzerland); Hug, H. J. [Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, (Switzerland); Schendel, P. J. A. van [Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, (Switzerland); Hoffmann, R. [Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, (Switzerland); Martin, S. [Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, (Switzerland); Baratoff, A. [Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, (Switzerland); Abdurixit, A. [Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, (Switzerland); Guentherodt, H.-J. [Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, (Switzerland); Gerber, Ch. [IBM Research Division, Zuerich Research Laboratory, Saeumerstrasse 4, CH-8803 Rueschlikon, (Switzerland)

2000-03-20T23:59:59.000Z

28

Effect of Roughness as Determined by Atomic Force Microscopy on the Wetting Properties of PTFE Thin  

E-Print Network (OSTI)

Effect of Roughness as Determined by Atomic Force Microscopy on the Wetting Properties of PTFE Thin Engineering College of Mines and Earth Sciences University of Utah Salt Lake City, Utah 84112 and G. YAMAUCHI films has been investigated using atomic force microscopy (AFM) and contact angle goniometry. Surface

Drelich, Jaroslaw W.

29

ARM - Publications: Science Team Meeting Documents: The Effects of Surface  

NLE Websites -- All DOE Office Websites (Extended Search)

The Effects of Surface Interactions on Summertime Arctic Clouds at Coastal The Effects of Surface Interactions on Summertime Arctic Clouds at Coastal and Inland Locations Doran, J. Christopher Pacific Northwest National Laboratory Barnard, James Pacific Northwest National Laboratory Shaw, William Pacific Northwest National Laboratory Cloud optical depths, effective droplet radii, base heights, and liquid water paths at Barrow and Atqasuk have been compared for the warm months (mid-June through mid-September) for the years 2001-2003. The optical depths at Atqasuk were about 26% larger than those at Barrow, only 100 km away, and the ratio of measured irradiance to clear sly irradiance was almost 20% smaller at Atqasuk under cloudy conditions. The differences appear to be caused by enhanced surface fluxes of sensible and latent heat

30

Materials Sciences Division 1990 annual report  

Science Conference Proceedings (OSTI)

This report is the Materials Sciences Division`s annual report. It contains abstracts describing materials research at the National Center for Electron Microscopy, and for research groups in metallurgy, solid-state physics, materials chemistry, electrochemical energy storage, electronic materials, surface science and catalysis, ceramic science, high tc superconductivity, polymers, composites, and high performance metals.

Not Available

1990-12-31T23:59:59.000Z

31

Materials Sciences Division 1990 annual report  

Science Conference Proceedings (OSTI)

This report is the Materials Sciences Division's annual report. It contains abstracts describing materials research at the National Center for Electron Microscopy, and for research groups in metallurgy, solid-state physics, materials chemistry, electrochemical energy storage, electronic materials, surface science and catalysis, ceramic science, high tc superconductivity, polymers, composites, and high performance metals.

Not Available

1990-01-01T23:59:59.000Z

32

Microscopy Methods  

Science Conference Proceedings (OSTI)

... NIST has worked extensively with microscope manufacturers such as FEI ... Electron microscopy methods have been used to characterize potential ...

2012-10-05T23:59:59.000Z

33

Advances in the Surface Science of TiO2 – A Global Perspective  

SciTech Connect

TiO2 rutile single-crystal surfaces have served has useful prototypical, well-defined specimens for fundamental investigations of oxide surface science for many years. As a result of both experimental and theoretical efforts, we have gained considerable insight into the structural, electronic, thermochemical and photochemical properties of pristine as well as defective surfaces. In this brief review, I summarize some of the recent advances that have been made in the laboratories of participants of the International Workshop of Oxide Surfaces (IWOX) series, principally on TiO2(110).

Chambers, Scott A.

2007-10-10T23:59:59.000Z

34

Surface science analysis of GaAs photocathodes following sustained electron beam delivery  

DOE Green Energy (OSTI)

Degradation of the photocathode materials employed in photoinjectors represents a challenge for sustained operation of nuclear physics accelerators and high power Free Electron Lasers (FEL). Photocathode quantum efficiency (QE) degradation is due to residual gasses in the electron source vacuum system being ionized and accelerated back to the photocathode. These investigations are a first attempt to characterize the nature of the photocathode degradation, and employ multiple surface and bulk analysis techniques to investigate damage mechanisms including sputtering of the Cs-oxidant surface monolayer, other surface chemistry effects, and ion implantation. Surface and bulk analysis studies were conducted on two GaAs photocathodes, which were removed from the JLab FEL DC photoemission gun after delivering electron beam, and two control samples. The analysis techniques include Helium Ion Microscopy (HIM), Rutherford Backscattering Spectrometry (RBS), Atomic Force Microscopy (AFM) and Secondary Ion Mass Spectrometry (SIMS). In addition, two high-polarization strained superlattice GaAs photocathode samples, one removed from the Continuous Electron Beam Accelerator Facility (CEBAF) photoinjector and one unused, were also analyzed using Transmission Electron Microscopy (TEM) and SIMS. It was found that heat cleaning the FEL GaAs wafer introduces surface roughness, which seems to be reduced by prolonged use. The bulk GaAs samples retained a fairly well organized crystalline structure after delivering beam but shows evidence of Cs depletion on the surface. Within the precision of the SIMS and RBS measurements the data showed no indication of hydrogen implantation or lattice damage from ion back bombardment in the bulk GaAs wafers. In contrast, SIMS and TEM measurements of the strained superlattice photocathode show clear crystal damage in the wafer from ion back bombardment.

Carlos Hernandez-Garcia, Fay Hannon, Marcy Stutzman, V. Shutthanandan, Z. Zhu, M. Nandasri, S. V. Kuchibhatla, S. Thevuthasan, W. P. Hess

2012-06-01T23:59:59.000Z

35

Surface Science Prospectives Weakly bound buffer layers: A versatile template for metallic nano-clusters  

E-Print Network (OSTI)

Surface Science Prospectives Weakly bound buffer layers: A versatile template for metallic nano layers Metallic nano-crystals Film patterning Laser ablation a b s t r a c t Buffer layers composed controlled growth of nano-clusters and for patterning of thin metallic films. Metallic nano-crystals can

Asscher, Micha

36

Analytical Microscopy  

DOE Green Energy (OSTI)

In the Analytical Microscopy group, within the National Center for Photovoltaic's Measurements and Characterization Division, we combine two complementary areas of analytical microscopy--electron microscopy and proximal-probe techniques--and use a variety of state-of-the-art imaging and analytical tools. We also design and build custom instrumentation and develop novel techniques that provide unique capabilities for studying materials and devices. In our work, we collaborate with you to solve materials- and device-related R&D problems. This sheet summarizes the uses and features of four major tools: transmission electron microscopy, scanning electron microscopy, the dual-beam focused-ion-beam workstation, and scanning probe microscopy.

Not Available

2006-06-01T23:59:59.000Z

37

4th-International Symposium on Ultrafast Surface Science - Final Report  

SciTech Connect

The 4-th International Symposium on Ultrafast Surface Dynamics (UDS4) was held at the Telluride Summer Research Center on June 22-27, 2003. The International Organizing Committee consisting of Hrvoje Petek (USA), Xiaoyang Zhu (USA), Pedro Echenique (Spain) and Maki Kawai (Japan) brought together a total of 51 participants 16 of whom were from Europe, 10 from Japan, and 25 from the USA. The focus of the conference was on ultrafast electron or light induced processes at well-defined surfaces. Ultrafast surface dynamics concerns the transfer of charge and energy at solid surfaces on the femtosecond time scale. These processes govern rates of fundamental steps in surface reactions, interfacial electron transfer in molecular electronics, and relaxation in spin transport. Recent developments in femtosecond laser technology make it possible to measure by a variety of nonlinear optical techniques directly in the time domain the microscopic rates underlying these interfacial processes. Parallel progress in scanning probe microscopy makes it possible at a single molecular level to perform the vibrational and electronic spectroscopy measurements, to induce reactions with tunneling electrons, and to observe their outcome. There is no doubt that successful development in the field of ultrafast surface dynamics will contribute to many important disciplines.

Hrvoje Petek

2005-01-26T23:59:59.000Z

38

Characterization of the molecular structure and mechanical properties of polymer surfaces and protein/polymer interfaces by sum frequency generation vibrational spectroscopy and atomic force microscopy  

SciTech Connect

Sum frequency generation (SFG) vibrational spectroscopy, atomic force microscopy (AFM), and other complementary surface-sensitive techniques have been used to study the surface molecular structure and surface mechanical behavior of biologically-relevant polymer systems. SFG and AFM have emerged as powerful analytical tools to deduce structure/property relationships, in situ, for polymers at air, liquid and solid interfaces. The experiments described in this dissertation have been performed to understand how polymer surface properties are linked to polymer bulk composition, substrate hydrophobicity, changes in the ambient environment (e.g., humidity and temperature), or the adsorption of macromolecules. The correlation of spectroscopic and mechanical data by SFG and AFM can become a powerful methodology to study and engineer materials with tailored surface properties. The overarching theme of this research is the interrogation of systems of increasing structural complexity, which allows us to extend conclusions made on simpler model systems. We begin by systematically describing the surface molecular composition and mechanical properties of polymers, copolymers, and blends having simple linear architectures. Subsequent chapters focus on networked hydrogel materials used as soft contact lenses and the adsorption of protein and surfactant at the polymer/liquid interface. The power of SFG is immediately demonstrated in experiments which identify the chemical parameters that influence the molecular composition and ordering of a polymer chain's side groups at the polymer/air and polymer/liquid interfaces. In general, side groups with increasingly greater hydrophobic character will be more surface active in air. Larger side groups impose steric restrictions, thus they will tend to be more randomly ordered than smaller hydrophobic groups. If exposed to a hydrophilic environment, such as water, the polymer chain will attempt to orient more of its hydrophilic groups to the surface in order to minimize the total surface energy. With an understanding of the structural and environmental parameters which govern polymer surface structure, SFG is then used to explore the effects of surface hydrophobicity and solvent polarity on the orientation and ordering of amphiphilic neutral polymers adsorbed at the solid/liquid interface. SFG spectra show that poly(propylene glycol) (PPG) and poly(ethylene glycol) (PEG) adsorb with their hydrophobic moieties preferentially oriented toward hydrophobic polystyrene surfaces. These same moieties, however, disorder when adsorbed onto a hydrophilic silica/water interface. Water is identified as a critical factor for mediating the orientation and ordering of hydrophobic moieties in polymers adsorbed at hydrophobic interfaces. The role of bulk water content and water vapor, as they influence hydrogel surface structure and mechanics, continues to be explored in the next series of experiments. A method was developed to probe the surface viscoelastic properties of hydroxylethyl methacrylate (HEMA) based contact lens materials by analyzing AFM force-distance curves. AFM analysis indicates that the interfacial region is dehydrated, relative to the bulk. Experiments performed on poly(HEMA+MA) (MA = methacrylic acid), a more hydrophilic copolymer with greater bulk water content, show even greater water depletion at the surface. SFG spectra, as well as surface energy arguments, suggest that the more hydrophilic polymer component (such as MA) is not favored at the air interface; this may explain anomalies in water retention at the hydrogel surface. Adsorption of lysozyme onto poly(HEMA+MA) was found to further reduce near-surface viscous behavior, suggesting lower surface water content. Lastly, protein adsorption is studied using a model polymer system of polystyrene covalently bound with a monolayer of bovine serum albumin. SFG results indicate that some amino acid residues in proteins adopt preferred orientations. SFG spectra also show that the phenyl rings of the bare polystyrene substrate in contact with air or

Koffas, Telly Stelianos

2004-05-15T23:59:59.000Z

39

Scanning tunneling microscopy studies of the surfaces of a-Si:H and a-SiGe:H films  

SciTech Connect

The report contains a detailed description of the experimental complexities encountered in developing scanning tunneling microscope (STM) probing of atomic structure on the surface of freshly-grown hydrogenated-amorphous semiconductors. It also contains a speculative microscopic film-growth model that explains differences between the disorder in CVD grown a-Ge:H versus a-Si:H films. This model is derived from prior results obtained in the chemical analysis of GeH{sub 4} plasmas, combined with surface reaction and thermodynamic considerations. The neutral radical fragments of silane, disilane and germane dissociation in discharges, which dominate the vapor and film-growth reactions, have been deduced from detailed analysis of prior data and are reported. 4 refs., 7 figs.

Gallagher, A.; Ostrom, R.; Tannenbaum, D. (National Inst. of Standards and Technology, Boulder, CO (USA))

1991-06-01T23:59:59.000Z

40

Using Surface Science to Probe Critical Interfaces in Organic and Hybrid Systems (PReSS Talk)  

DOE Green Energy (OSTI)

This talk will address several uses of surface science for understanding critical interfaces in energy-related devices and for materials characterization. Primary emphasis will be on photoelectron spectroscopy applied to understanding interfaces in organic photovoltaics (OPV). In organic photovoltaics, where solar-to-electric conversion efficiencies are typically low, interfacial phenomena dictate the performance of the solar cell. It is therefore important to understand the interfacial chemistry and energy level alignment at these interfaces to better optimize them for increased PV performance. UV-photoelectron spectroscopy and X-ray photoelectron spectroscopy (UPS/XPS) are ideally suited to examine these interfaces. Several examples of interfacial energy level alignments will be discussed. More general applications of surface science will also be discussed including work from a collaborative effort at the National Synchrotron Light Source where NEXAFS, imaging NEXAFS, and variable energy XPS have been used for a variety of applications.

Brumback, Michael T.

2010-03-25T23:59:59.000Z

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Sixth International Conference on X-ray Microscopy  

SciTech Connect

More than 180 participants from around the world crowded the Clark Kerr Campus of the University of California, Berkeley, from August 1-6, 1999 for the Sixth International Conference on X-Ray Microscopy (XRM99). Held every three years since 1983, the XRM conferences have become the primary international forum for the presentation and discussion of advances in high-spatial-resolution x-ray imaging and applications (including the use of x-ray spectroscopic and analytical techniques) in biological and medical sciences, environmental and soil sciences, and materials and surface sciences.

Robinson, Arthur L.

1999-08-23T23:59:59.000Z

42

Combined electrochemical/surface science investigations of Pt/Cr alloy electrodes  

DOE Green Energy (OSTI)

Chromium addition improves the performance of carbon-supported Pt electrodes for oxygen reduction in phosphoric acid fuel cells. To clarify the role of chromium and its chemical nature at the electrode surface, we have performed a combined electrochemical/surface science investigation of a series of bulk Pt/sub x/Cr/sub (1-x)/ alloys (0 less than or equal to x less than or equal to 1). In this paper we report the surface characterization of the starting electrodes by XPS, electrochemical results from cyclic voltammetry in 85% phosphoric acid, and post-electrochemical surface characterization. For Cr contents less than 40%, the electrodes were quite stable up to +1.6 V vs DHE. The surface Cr was largely oxidized to Cr/sup +3/ for surfaces at open circuit ad those exposed at potentials < +1.4 V. For intermediate Cr levels, Cr was leached from the surface region by +1.5 V, leaving a porous Pt electrode with increased electrochemical hydrogen adsorption capacity. For Pt/sub 0.2//Cr/sub 0.8/, treatments at +1.4 V and above led to the appearance of Pt/sup 4 +/ and Cr/sup 6 +/ species, apparently stabilized in a porous phosphate overlayer up to 50 A thick. The Pt electrochemical hydrogen adsorption capacity was simultaneously increased by a factor of 15. 18 refs., 4 figs.

Daube, K.A.; Paffett, M.T.; Gottesfeld, S.; Campbell, C.T.

1985-01-01T23:59:59.000Z

43

Enhancing the science return of Mars missions via sample preparation, robotic surface exploration and in orbit fuel production  

E-Print Network (OSTI)

The future of Mars exploration is challenging from multiple points of view. To enhance their science return, future surface probes will most likely be equipped with complex Sample Preparation And Transfer (SPAT) facilities. ...

Lamamy, Julien-Alexandre, 1978-

2004-01-01T23:59:59.000Z

44

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites (Extended Search)

SAMM SAMM EMC Home Overview Personnel Resources Highlights Publications Visit EMC Contact Info Information for Users Instrument Calendars Info for EMC Staff SĂ…MM Facility TEAM Project Microscopy Links Argonne Facilities DOE/BES Facilities DOE/BES BES Electron Beam Microcharacterization Centers Sub-Ă…ngstrom Microscopy and Microanalysis Facility In order to meet the scientific challenges of the future, the EMC has built a new state-of-the-art laboratory space for advanced electron microscopy. The new building has been designed to provide next- generation science with an operating environment that cannot be attained by renovating existing facilities. The EMC staff learned as much as possible from similar efforts around the world, including the SuperSTEM building at Daresbury, the Triebenberg Special Laboratory, the AML at Oak Ridge National Laboratory, the new NIST building, and various facilities for nanoscience.

45

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites (Extended Search)

Acknowledgment Acknowledgment EMC Home Overview Personnel Resources Highlights Publications Visit EMC Contact Info Information for Users Becoming a User Submit a Proposal End-of-Proposal Report Acknowledgment User Training User Safety User Status Instrument Access User Committee User Meetings Data Storage Policy Visiting the EMC Instrument Calendars Info for EMC Staff SĂ…MM Facility TEAM Project Microscopy Links Argonne Facilities DOE/BES Facilities DOE/BES BES Electron Beam Microcharacterization Centers Acknowledgment Please acknowledge your use of the EMC in your publications and presentations with the following acknowledgment statement: The electron microscopy was accomplished at the Electron Microscopy Center at Argonne National Laboratory, a U.S. Department of Energy Office of Science Laboratory operated under Contract No. DE-AC02-06CH11357 by UChicago Argonne, LLC.

46

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites (Extended Search)

An Office of Science User Facility An Office of Science User Facility The Electron Microscopy Center (EMC) at Argonne National Laboratory develops and maintains unique capabilities for electron beam characterization and applies those capabilities to solve materials problems. The EMC staff carry out research with collaborators and users from Argonne, universities, and other laboratories. The expertise and facilities of the EMC additionally serve a group of national and international researchers. The EMC emphasizes three major areas: materials research, technique and instrumentation development, and operation as a national research facility. Research by EMC personnel includes microscopy based studies in high Tc superconducting materials, irradiation effects in metals and semiconductors, phase transformations, and processing related structure and chemistry of interfaces in thin films.

47

Combined use of hard X-ray phase contrast imaging and X-ray fluorescence microscopy for sub-cellular metal quantification  

E-Print Network (OSTI)

Combined use of hard X-ray phase contrast imaging and X-ray fluorescence microscopy for subSurface Science Laboratory at the European Synchrotron Radiation Facility, Grenoble, France Abstract Hard X of the details of cells are undetectable in hard X-ray microscopy due to the weak absorption contrast between

Paris-Sud XI, Université de

48

Positron microscopy  

Science Conference Proceedings (OSTI)

The negative work function property that some materials have for positrons make possible the development of positron reemission microscopy (PRM). Because of the low energies with which the positrons are emitted, some unique applications, such as the imaging of defects, can be made. The history of the concept of PRM, and its present state of development will be reviewed. The potential of positron microprobe techniques will be discussed also.

Hulett, L.D. Jr.; Xu, J.

1995-02-01T23:59:59.000Z

49

National Security Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Electron Microscopy Lab Ion Beam Materials Lab Proton Radiography Trident Laser Facility Research Library Faces of Science 70 Years of Innovation Science Programs Applied Energy...

50

Investigation of anti-Relaxation coatings for alkali-metal vapor cells using surface science techniques  

SciTech Connect

Many technologies based on cells containing alkali-metal atomic vapor benefit from the use of antirelaxation surface coatings in order to preserve atomic spin polarization. In particular, paraffin has been used for this purpose for several decades and has been demonstrated to allow an atom to experience up to 10?000 collisions with the walls of its container without depolarizing, but the details of its operation remain poorly understood. We apply modern surface and bulk techniques to the study of paraffin coatings in order to characterize the properties that enable the effective preservation of alkali spin polarization. These methods include Fourier transform infrared spectroscopy, differential scanning calorimetry, atomic force microscopy, near-edge x-ray absorption fine structure spectroscopy, and x-ray photoelectron spectroscopy. We also compare the light-induced atomic desorption yields of several different paraffin materials. Experimental results include the determination that crystallinity of the coating material is unnecessary, and the detection of C=C double bonds present within a particular class of effective paraffin coatings. Further study should lead to the development of more robust paraffin antirelaxation coatings, as well as the design and synthesis of new classes of coating materials.

Seltzer, S. J.; Michalak, D. J.; Donaldson, M. H.; Balabas, M. V.; Barber, S. K.; Bernasek, S. L.; Bouchiat, M.-A.; Hexemer, A.; Hibberd, A. M.; Jackson Kimball, D. F.; Jaye, C.; Karaulanov, T.; Narducci, F. A.; Rangwala, S. A.; Robinson, H. G.; Shmakov, A. K.; Voronov, D. L.; Yashchuk, V. V.; Pines, A.; Budker, D.

2010-10-11T23:59:59.000Z

51

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites

Laboratory Laboratory Electron Microscopy Center Argonne Home > EMC > EMC Home Overview Personnel Resources Highlights Publications Visit EMC Contact Info Information for Users Instrument Calendars Info for EMC Staff SĂ…MM Facility TEAM Project Microscopy Links Argonne Facilities DOE/BES Facilities DOE/BES BES Electron Beam Microcharacterization Centers An Office of Science User Facility The Electron Microscopy Center (EMC) at Argonne National Laboratory develops and maintains unique capabilities for electron beam characterization and applies those capabilities to solve materials problems. The EMC staff carry out research with collaborators and users from Argonne, universities, and other laboratories. The expertise and facilities of the EMC additionally serve a group of national and international researchers. The EMC emphasizes three major areas: materials research, technique and instrumentation development, and operation as a national research facility. Research by EMC personnel includes microscopy based studies in high Tc superconducting materials, irradiation effects in metals and semiconductors, phase transformations, and processing related structure and chemistry of interfaces in thin films.

52

Electron Microscopy Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

Facilities » Facilities » Electron Microscopy Lab Electron Microscopy Lab Focusing on the study of microstructures with electron and ion beam instruments, including crystallographic and chemical techniques. April 12, 2012 Transmission electron microscope Rob Dickerson examines a multiphase oxide scale using the FEI Titan 80-300 transmission electron microscope. Contact Rob Dickerson (505) 667-6337 Email Rod McCabe (505) 606-1649 Email Pat Dickerson (505) 665-3036 Email Tom Wynn (505) 665-6861 Email Dedicated to the characterization of materials through imaging, chemical, and crystallographic analyses of material microstructures in support of Basic Energy Science, Laboratory Directed Research and Development, DoD, DOE, Work for Others, nuclear energy, and weapons programs. Go to full website »

53

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites (Extended Search)

Training Training EMC Home Overview Personnel Resources Highlights Publications Visit EMC Contact Info Information for Users Becoming a User Submit a Proposal End-of-Proposal Report Acknowledgment User Training User Safety User Status Instrument Access User Committee User Meetings Data Storage Policy Visiting the EMC Instrument Calendars Info for EMC Staff SĂ…MM Facility TEAM Project Microscopy Links Argonne Facilities DOE/BES Facilities DOE/BES BES Electron Beam Microcharacterization Centers User Training Prior Training in Electron Microscopy: People who wish to operate TEMs must have at least one college-level course in TEM with a lab component or previous TEM experience. The college course can't be one in which TEM was just one of many topics. For researchers who lack academic training and/or practical experience in electron microscopy, we suggest the short courses in TEM at the Hooke College of Applied Sciences, and the hands-on TEM courses at Northwestern University or the University of Chicago or Northern Illinois University.

54

Application of hydrogenation to low-temperature cleaning of the Si(001) surface in the processes of molecular-beam epitaxy: Investigation by scanning tunneling microscopy, reflected high-energy electron diffraction, and high resolution transmission electron microscopy  

Science Conference Proceedings (OSTI)

Structural properties of the clean Si(001) surface obtained as a result of low-temperature (470-650 Degree-Sign C) pre-growth annealings of silicon wafers in a molecular-beam epitaxy chamber have been investigated. To decrease the cleaning temperature, a silicon surface was hydrogenated in the process of a preliminary chemical treatment in HF and NH{sub 4}F aqueous solutions. It has been shown that smooth surfaces composed of wide terraces separated by monoatomic steps can be obtained by dehydrogenation at the temperatures Greater-Than-Or-Equivalent-To 600 Degree-Sign C, whereas clean surfaces obtained at the temperatures clean surfaces on the temperature of hydrogen thermal desorption and the process of the preliminary chemical treatment. The frequency of detachment/attachment of Si dimers from/to the steps and effect of the Ehrlich-Schwoebel barrier on ad-dimer migration across steps have been found to be the most probable factors determining a degree of the resultant surface roughness.

Arapkina, L. V.; Krylova, L. A.; Chizh, K. V.; Chapnin, V. A.; Uvarov, O. V.; Yuryev, V. A. [A. M. Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilov Street, Moscow 119991 (Russian Federation)

2012-07-01T23:59:59.000Z

55

Mapping out the structural changes of natural and pretreated plant cell wall surfaces by atomic force microscopy single molecular recognition imaging  

E-Print Network (OSTI)

Biochem J 2. Solomon BD: Biofuels and sustainability. Ecolplants and enzymes for biofuels production. Science 2007,of lignocellulose. Biofuels Bioprod Biorefin 2012, 11. Yang

Zhang, Mengmeng; Chen, Guojun; Kumar, Rajeev; Xu, Bingqian

2013-01-01T23:59:59.000Z

56

Short Course Agricultural Microscopy  

Science Conference Proceedings (OSTI)

Short Course in Agricultural Microscopy. Fargo North Dakota held June 13-16 2011. Sponsored by the Agricultural Microscopy Division of AOCS and the Great Plains Institute of Food Safety. Short Course Agricultural Microscopy Short Courses ...

57

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites (Extended Search)

General Information for EMC Users General Information for EMC Users The Electron Microscopy Center (EMC) is an Office of Science User Facility operated for the U.S. Department of Energy Office of Science by Argonne National Laboratory. It is one of three scientific user facilities for electron beam microcharacterization and one of several National User Facilities located at Argonne National Laboratory. As a scientific user facility, the EMC supports user-accessible instruments (Resources) for high spatial resolution microanalysis, field imaging, nanoscale structural characterization, nanoscale fabrication and manipulation, and unique in situ studies of materials under the influence of ion-beam irradiation. These capabilities are used in a diverse variety of research areas to address grand challenge scientific questions encompassing, for example, energy-related studies, biology, astrophysics, archaeology, superconductivity, nanotechnology, environmental engineering, tribology, and ferroelectricity. The research is performed both by users and by EMC staff. While many users work independently, the most challenging research activities require extensive contributions from EMC staff.

58

Science  

NLE Websites -- All DOE Office Websites (Extended Search)

149802 149802 , 1291 (2007); 318 Science et al. L. Ozyuzer, Superconductors Emission of Coherent THz Radiation from www.sciencemag.org (this information is current as of November 29, 2007 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/318/5854/1291 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/318/5854/1291/DC1 can be found at: Supporting Online Material found at: can be related to this article A list of selected additional articles on the Science Web sites http://www.sciencemag.org/cgi/content/full/318/5854/1291#related-content http://www.sciencemag.org/cgi/content/full/318/5854/1291#otherarticles

59

SCience  

NLE Websites -- All DOE Office Websites (Extended Search)

all all SCience Chicago Office Environment, Safety and Health Functions, Responsibilities, and Authorities Manual December 2012 ~5 {?JI-- l L-H1- I Roxanne E. Purucker, Manager Date SC-CH FRAM Revision 7 Office of Science - Chicago Office SC-CH Revision History TITLE: SC-CH Functions, Responsibilities, and Authorities Manual POINT OF CONTACT: Karl Moro SCMS MANAGEMENT SYSTEM: Environment, Safety and Health (ES&H) TO BE UPDATED: December 31, 2013 Revision Date Reason/Driver Description 5 Oct 10 Annual review and revision of the SC-CH ES&H Functions, Responsibilities, and Authorities Manual Changes were primarily made to address administrative and organizational changes and general improvement of text and presentation. I 6 Nov 11 Annual review and revision of

60

Agricultural Microscopy Division Of Interest  

Science Conference Proceedings (OSTI)

Agricultural Microscopy, Reports, Journals, Websites Agricultural Microscopy Division Of Interest Agricultural Microscopy agri-food sector agricultural Agricultural Microscopy analytical aocs articles biotechnology courses detergents division divisions f

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Seventh BES (Basic Energy Sciences) catalysis and surface chemistry research conference  

Science Conference Proceedings (OSTI)

Research programs on catalysis and surface chemistry are presented. A total of fifty-seven topics are included. Areas of research include heterogeneous catalysis; catalysis in hydrogenation, desulfurization, gasification, and redox reactions; studies of surface properties and surface active sites; catalyst supports; chemical activation, deactivation; selectivity, chemical preparation; molecular structure studies; sorption and dissociation. Individual projects are processed separately for the data bases. (CBS)

Not Available

1990-03-01T23:59:59.000Z

62

Real-time scanning tunneling microscopy observations of the oxidation of a Ti/Pt(111)-(2x2) surface alloy using O{sub 2} and NO{sub 2}  

SciTech Connect

The authors have used scanning tunneling microscopy (STM), low energy electron diffraction (LEED), and Auger electron spectroscopy (AES) to study the nascent oxidation of an ordered Ti/Pt(111)-(2x2) surface alloy exposed to oxygen (O{sub 2}) or nitrogen dioxide (NO{sub 2}) under ultrahigh vacuum conditions. The Ti/Pt(111)-(2x2) surface alloy was formed by depositing an ultrathin Ti film on Pt(111) and annealing to 1050 K. This produces an alloy film in which the surface layer is pure Pt and the second layer contains Ti atoms in a (2x2) structure, which causes the pattern observed by STM and LEED. Real-time imaging of the surface at 300 K was carried out by continuously scanning with the STM while either O{sub 2} or NO{sub 2} was introduced into the chamber. O{sub 2} exposures did not cause any gross structural changes; however oxygen was detected on the surface afterward using AES. Annealing this surface to 950 K resulted in the formation of an ordered TiO{sub x} overlayer as characterized by both LEED and STM. In contrast, NO{sub 2} exposures caused definite changes in the surface morphology at 300 K, and the root-mean-square roughness increased from 3.5 to 7.1 A after a large NO{sub 2} exposure. No ordered structures were produced by this treatment, but annealing the surface to 950 K formed an ordered pattern in LEED and corresponding clear, well-resolved structures in STM images. We account for these observations on the disruption or reconstruction of the Ti/Pt(111)-(2x2) surface alloy by arguments recalling that Ti oxidation is an activated process. The energetic barrier to TiO{sub x} formation cannot be surmounted at room temperature at low oxygen coverages, and annealing the surface was necessary to initiate this reaction. However, the higher oxygen coverages obtained using the more reactive oxidant NO{sub 2} lowered the chemical potential in the system sufficiently to overcome the activation barrier to extract Ti from the alloy at room temperature and form a disordered TiO{sub x} film. These results illustrate the importance of the surface oxygen coverage in nucleating the room temperature oxidation of the Pt-Ti surface alloys and further show the ability of NO{sub 2} in ultrahigh vacuum studies for probing the chemistry that will occur at higher O{sub 2} pressure.

Hsieh Shuchen; Liu, G. F.; Koel, Bruce E. [Center for Nanoscience and Nanotechnology, Department of Chemistry, National Sun Yat-Sen University, Kaohsiung, Taiwan (China); Department of Chemistry, Lehigh University, Bethlehem, Pennsylvania 18015-3172 (United States)

2008-09-15T23:59:59.000Z

63

NIST: Ultraviolet Photoemission Electron Microscopy  

Science Conference Proceedings (OSTI)

Ultraviolet Photoemission Electron Microscopy. Summary: Ultraviolet photoemission electron microscopy is used to study ...

2012-11-19T23:59:59.000Z

64

Agricultural Microscopy Division  

Science Conference Proceedings (OSTI)

The Agricultural Microscopy Division advances visual imaging in discerning the quality and content of ingredients and finished products of the feed, fertilizer, seed, and agri-food sectors. Agricultural Microscopy Division Divisions achievement ag

65

MML Microscopy Facility  

Science Conference Proceedings (OSTI)

The MML Electron Microscopy Facility consists of three transmission electron microscopes (TEM), three scanning electron microscopes (SEM), a ...

2013-06-11T23:59:59.000Z

66

Influence of Surface Preparation on Scanning Kelvin Probe Microscopy and Electron Backscatter Diffraction Analysis of Cross Sections of CdTe/CdS Solar Cells: Preprint  

DOE Green Energy (OSTI)

In this work we investigated different methods to prepare cross sections of CdTe/CdS solar cells for EBSD and SKPM analyses. We observed that procedures used to prepare surfaces for EBSD are not suitable to prepare cross sections, and we were able to develop a process using polishing and ion-beam milling. This process resulted in very good results and allowed us to reveal important aspects of the cross section of the CdTe film. For SKPM, polishing and a light ion-beam milling resulted in cross sections that provided good data. We were able to observe the depletion region on the CdTe film and the p-n junction as well as the interdiffusion layer between CdTe and CdS. However, preparing good-quality cross sections for SKPM is not a reproducible process, and artifacts are often observed.

Moutinho, H. R.; Dhere, R. G.; Jiang, C. S.; Al-Jassim, M. M.

2011-06-01T23:59:59.000Z

67

Potential contributions of noncontact atomic force microscopy for the future Casimir force measurements  

E-Print Network (OSTI)

Surface electric noise, i.e., the non-uniform distribution of charges and potentials on a surface, poses a great experimental challenge in modern precision force measurements. Such a challenge is encountered in a number of different experimental circumstances. The scientists employing atomic force microscopy (AFM) have long focused their efforts to understand the surface-related noise issues via variants of AFM techniques, such as Kelvin probe force microscopy or electric force microscopy. Recently, the physicists investigating quantum vacuum fluctuation phenomena between two closely-spaced objects have also begun to collect experimental evidence indicating a presence of surface effects neglected in their previous analyses. It now appears that the two seemingly disparate science communities are encountering effects rooted in the same surface phenomena. In this report, we suggest specific experimental tasks to be performed in the near future that are crucial not only for fostering needed collaborations between the two communities, but also for providing valuable data on the surface effects in order to draw the most realistic conclusion about the actual contribution of the Casimir force (or van der Waals force) between a pair of real materials.

W. J. Kim; U. D. Schwarz

2010-10-18T23:59:59.000Z

68

Microscopy for Science, Technology, Engineering and Math ...  

Science Conference Proceedings (OSTI)

... The NNIN provides extensive education outreach programs for the kinder- garten to senior citizen (K-to-gray) population. ...

2012-05-07T23:59:59.000Z

69

mathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publisher  

E-Print Network (OSTI)

sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences

Calegari, Frank

70

Metrology Electron Microscopy  

Science Conference Proceedings (OSTI)

Metrology Electron Microscopy. Technical Contact: Joseph (Joe) Fu. 301-975-3795. Figure 1. SRM 484f Sample and its Micrograph. ...

2011-10-28T23:59:59.000Z

71

Spectroscopy and atomic force microscopy of biomass  

NLE Websites -- All DOE Office Websites (Extended Search)

Spectroscopy Spectroscopy and atomic force microscopy of biomass L. Tetard a,b , A. Passian a,b,n , R.H. Farahi a , U.C. Kalluri c , B.H. Davison c , T. Thundat a,b a Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA b Department of Physics, University of Tennessee, Knoxville, TN 37996, USA c Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA a r t i c l e i n f o Keywords: Atomic force microscopy Spectroscopy Plant cells Biomass Nanomechanics a b s t r a c t Scanning probe microscopy has emerged as a powerful approach to a broader understanding of the molecular architecture of cell walls, which may shed light on the challenge of efficient cellulosic ethanol production. We have obtained preliminary images of both Populus and switchgrass samples using atomic force microscopy (AFM). The results show distinctive features that are shared by switchgrass

72

Biological Imaging by Soft X-Ray Diffraction Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Imaging by Soft X-Ray Diffraction Microscopy Print Electron and x-ray microscopes are a valuable tool for both the life and materials sciences, but they are limited in...

73

mathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publisher  

E-Print Network (OSTI)

& Number Theory mathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences publishersmathematical sciences

Skorobogatov, Alexei N.

74

Feasibility and limitation of track studies using atomic force microscopy  

E-Print Network (OSTI)

Feasibility and limitation of track studies using atomic force microscopy D. Nikezic, J.P.Y. Ho, C.W.Y. Yip, V.S.Y. Koo, K.N. Yu * Department of Physics and Materials Science, City University of Hong Kong July 2002 Abstract Atomic force microscopy (AFM) has been employed to investigate characteristics

Yu, K.N.

75

Nonlinear vibrational microscopy  

SciTech Connect

The present invention is a method and apparatus for microscopic vibrational imaging using coherent Anti-Stokes Raman Scattering or Sum Frequency Generation. Microscopic imaging with a vibrational spectroscopic contrast is achieved by generating signals in a nonlinear optical process and spatially resolved detection of the signals. The spatial resolution is attained by minimizing the spot size of the optical interrogation beams on the sample. Minimizing the spot size relies upon a. directing at least two substantially co-axial laser beams (interrogation beams) through a microscope objective providing a focal spot on the sample; b. collecting a signal beam together with a residual beam from the at least two co-axial laser beams after passing through the sample; c. removing the residual beam; and d. detecting the signal beam thereby creating said pixel. The method has significantly higher spatial resolution then IR microscopy and higher sensitivity than spontaneous Raman microscopy with much lower average excitation powers. CARS and SFG microscopy does not rely on the presence of fluorophores, but retains the resolution and three-dimensional sectioning capability of confocal and two-photon fluorescence microscopy. Complementary to these techniques, CARS and SFG microscopy provides a contrast mechanism based on vibrational spectroscopy. This vibrational contrast mechanism, combined with an unprecedented high sensitivity at a tolerable laser power level, provides a new approach for microscopic investigations of chemical and biological samples.

Holtom, Gary R. (Richland, WA); Xie, Xiaoliang Sunney (Richland, WA); Zumbusch, Andreas (Munchen, DE)

2000-01-01T23:59:59.000Z

76

NREL: Energy Sciences - Klara Maturova  

NLE Websites -- All DOE Office Websites (Extended Search)

Klara Maturova Klara Maturova Postdoctoral Researcher Photo of Klara Maturova Phone: (303) 384-7909 Email: klara.maturova@nrel.gov At NREL Since: 2010 Dr. Klara Maturova joined the Chemical and Nanoscale Science Group at NREL in April 2010. Dr. Maturova obtained her M.Sc. degree (cum laude) in July 2005 at the Brno University of Technology, Czech Republic. She did research in the field of scanning probe microscopy and surface plasmon polaritons in the Solid State Physics and Surfaces Group. During her master study, she interned at the Eindhoven University of Technology in The Netherlands, where she researched fullerene molecules on graphite and diamond surfaces. One year later, she bacame a Ph.D. student in Eindhoven's Molecular Materials and Nanosystems Group under the supervision of M. Kemerink and R.

77

Neural network characterization of scanning electron microscopy  

Science Conference Proceedings (OSTI)

A scanning electron microscope (SEM) is a sophisticated equipment employed for fine imaging of processed film surfaces. In this study, a prediction model of scanning electron microscopy was constructed by using a generalized regression neural network ... Keywords: generalized regression neural network, genetic algorithm, model, scanning electron microscope, statistical experiment

Sanghee Kwon; Donghwan Kim; Byungwhan Kim

2008-07-01T23:59:59.000Z

78

Agricultural Microscopy Division List  

Science Conference Proceedings (OSTI)

Name AffiliationCity, State, CountryAgricultural Microscopy Division2013 Members72 Members as of October 1, 2013Ajbani, RutviInstitute of Chemical TechnologyMumbai, MH, IndiaAlonso, CarmenPuerto Rico Dept ofAgricultureDorado, Puerto RicoArmbrust, KevinLoui

79

Scanning Tunneling Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Research Lab, MC 704 Urbana, IL 61801 217-244-4861 abbamont@illinois.edu Ian S. Anderson Oak Ridge National Laboratory Neutron Sciences Directorate P.O. Box 2008, MS 6477 Oak...

80

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites (Extended Search)

Overview Overview The mission of the Electron Microscopy Center (EMC) is to: Conduct materials research using advanced microstructural characterization methods; Maintain unique resources and facilities for scientific research for the both the Argonne National Laboratory and national scientific community. Develop and expand the frontiers of microanalysis by fostering the evolution of synergistic state-of-the-art resources in instrumentation, techniques and scientific expertise; The staff members of the EMC carry out their own research as well as participate in collaborative programs with other scientists at Argonne National Laboratory as well as researchers, educators and students worldwide. The Electron Microscopy Center (EMC) at Argonne National Laboratory develops and maintains unique capabilities for electron beam characterization and applies those capabilities to solve materials problems. The EMC staff perform collaborative research with members of other Divisions at Argonne National Laboratory and with collaborators from universities and other laboratories. The expertise and facilities of the EMC additionally serve a group of national and international researchers. The EMC emphasizes three major areas: materials research, technique and instrumentation development, and operation as a national research facility. Research by EMC personnel includes microscopy based studies in high Tc superconducting materials, irradiation effects in metals and semiconductors, phase transformations, and processing related structure and chemistry of interfaces in thin films.

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Novel Microscopy Techniques  

Science Conference Proceedings (OSTI)

Oct 19, 2011 ... Atomic Imaging of Surface and Bulk with an Aberration Corrected Scanning Electron Microscope: Yimei Zhu1; 1Brookhaven National ...

82

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites (Extended Search)

position: 1.5 mm Users' research interests (examples): Radiation effects (fissionfusion reactor materials), radioactive waste storage, ion-beam processing (surface...

83

Agricultural Microscopy Newsletter March 11  

Science Conference Proceedings (OSTI)

AOCS Agricultural Microscopy Division Newsletter March 2011 Greetings from the Chairperson The Agricultural Microscopy Division would like to take this opportunity to express our sincere sympathy to the family and friends of George Liepa who rece

84

Recent Advances in Electron Microscopy, Spectral Imaging, and ...  

Science Conference Proceedings (OSTI)

... such as adhesion performance, corrosion resistance, electrical and magnetic ... and surface analysis techniques for probing the composition and structure of ... microscopy and energy dispersive X-ray spectroscopy (FESEM/STEM/EDS); ...

85

Materials Science and Engineering A 438440 (2006) 11191123 Surface characteristics and biological properties of paclitaxel-embedding  

E-Print Network (OSTI)

, China b Department of Mechanics and Engineering Science, Peking University, Beijing 100871, China, needle wire localisers, orthodontic arch wires, implantable drug delivery system, etc [3]. The specific be eliminated from body as carbon dioxide and water, and PLGA has been increasingly used to delivery drugs [6

Zheng, Yufeng

86

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites (Extended Search)

Submit an EMC Proposal Submit an EMC Proposal EMC Home Overview Personnel Resources Highlights Publications Visit EMC Contact Info Information for Users Becoming a User Submit a Proposal End-of-Proposal Report Acknowledgment User Training User Safety User Status Instrument Access User Committee User Meetings Data Storage Policy Visiting the EMC Instrument Calendars Info for EMC Staff SĂ…MM Facility TEAM Project Microscopy Links Argonne Facilities DOE/BES Facilities DOE/BES BES Electron Beam Microcharacterization Centers Submit an EMC Proposal EMC Proposal Submission Deadline Dates for FY2014: November 1, 2013 March 7, 2014 July 11, 2014 Is your proposal a multi-facility proposal? In other words, do you intend to submit proposals to EMC and APS or CNM for your research project? If your answer is "yes," go now to the Proposal Gateway.

87

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites (Extended Search)

EMC Users Committee EMC Users Committee EMC Home Overview Personnel Resources Highlights Publications Visit EMC Contact Info Information for Users Becoming a User Submit a Proposal End-of-Proposal Report Acknowledgment User Training User Safety User Status Instrument Access User Committee User Meetings Data Storage Policy Visiting the EMC Instrument Calendars Info for EMC Staff SĂ…MM Facility TEAM Project Microscopy Links Argonne Facilities DOE/BES Facilities DOE/BES BES Electron Beam Microcharacterization Centers EMC Users Committee An EMC Users Committee has been organized to enhance communication between the user community and the EMC. While the EMC relies on and encourages strong interaction among its users and between its staff and users, the Users Committee provides an additional formal mechanism for user input into EMC planning and operations to ensure that users' needs and concerns are addressed.

88

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites (Extended Search)

End-of-Proposal Report End-of-Proposal Report EMC Home Overview Personnel Resources Highlights Publications Visit EMC Contact Info Information for Users Becoming a User Submit a Proposal End-of-Proposal Report Acknowledgment User Training User Safety User Status Instrument Access User Committee User Meetings Data Storage Policy Visiting the EMC Instrument Calendars Info for EMC Staff SĂ…MM Facility TEAM Project Microscopy Links Argonne Facilities DOE/BES Facilities DOE/BES BES Electron Beam Microcharacterization Centers End-of-Proposal Report In accordance with the User Agreement, please provide the EMC with the following information when your proposal expires (one year after its acceptance date or when the experiments end, whichever is sooner). A research summary/progress report using these two templates:

89

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites (Extended Search)

Becoming a User Becoming a User EMC Home Overview Personnel Resources Highlights Publications Visit EMC Contact Info Information for Users Becoming a User Submit a Proposal End-of-Proposal Report Acknowledgment User Training User Safety User Status Instrument Access User Committee User Meetings Data Storage Policy Visiting the EMC Instrument Calendars Info for EMC Staff SĂ…MM Facility TEAM Project Microscopy Links Argonne Facilities DOE/BES Facilities DOE/BES BES Electron Beam Microcharacterization Centers Procedure to Become a User at the EMC 1. Summary All users have to fulfill certain requirements before access to the EMC can be granted. The following list provides short descriptions of the requirements. Details can be found on this page and via the relevant links at the left. Register for access to Argonne's scientific user facilities (or update your user registration information).

90

Subsurface Science (The Molecular Environmental Science Group) |  

NLE Websites -- All DOE Office Websites (Extended Search)

Subsurface Science Subsurface Science BIO Home Page About BIO News Releases Research Publications People Contact Us Organization Chart Site Index Inside BIO BIO Safety About Argonne arrow Subsurface Science The Molecular Environmental Science Group (MESG) The MESG is part of the Biosciences Division at Argonne National Laboratory. One of the main foci during the creation and growth of the MESG has been the development of an internationally recognized integrated multidisciplinary scientific team focused on the investigation of fundamental biogeochemical questions. Presently, expertise that is represented by members of the MES Group includes x-ray Physics, Environmental Chemistry, Environmental Microbiology, (Bio)geochemistry, and radiolimnology. Additional expertise in electron microscopy, x-ray microscopy, Microbial Ecology, and Bioinformatics often is provided by collaborations with scientists outside of our group.

91

Multiscale Studies of the Formation and Stability of Surface-based Nanostructures, DOE Computational Materials Science Network - Final Report  

SciTech Connect

Summary of work performed under DOE-CMSN/FG0205ER46227, Multiscale Studies of the Formation and Stability of Surface-based Nanostructures, listing publications, collaborations, and presentations.

Einstein, Theodore L.

2011-10-31T23:59:59.000Z

92

NCEM National Center for Electron Microscopy: Links  

NLE Websites -- All DOE Office Websites (Extended Search)

National Laboratory, Center for Materials Research Brookhaven National Laboratory, Electron Microscopy Program Sites of Interest to the Microscopy Community The Microscopy...

93

Agricultural Microscopy Division Newsletter September 2013  

Science Conference Proceedings (OSTI)

Read the latest news from the Agricultural Microscopy division. Agricultural Microscopy Division Newsletter September 2013 Agricultural Microscopy Division Newsletter September 2013 ...

94

EMSL: Science: Geochemistry/Biogeochemistry and Subsurface Science  

NLE Websites -- All DOE Office Websites (Extended Search)

GeochemistryBiogeochemistry and Subsurface Science pyramid-like surface structure of the mineral, hematite Pyramid-like surface structure of the mineral, hematite Research in this...

95

Ultrafast scanning probe microscopy  

DOE Patents (OSTI)

An ultrafast scanning probe microscopy method for achieving subpicosecond-temporal resolution and submicron-spatial resolution of an observation sample. In one embodiment of the present claimed invention, a single short optical pulse is generated and is split into first and second pulses. One of the pulses is delayed using variable time delay means. The first pulse is then directed at an observation sample located proximate to the probe of a scanning probe microscope. The scanning probe microscope produces probe-sample signals indicative of the response of the probe to characteristics of the sample. The second pulse is used to modulate the probe of the scanning probe microscope. The time delay between the first and second pulses is then varied. The probe-sample response signal is recorded at each of the various time delays created between the first and second pulses. The probe-sample response signal is then plotted as a function of time delay to produce a cross-correlation of the probe sample response. In so doing, the present invention provides simultaneous subpicosecond-temporal resolution and submicron-spatial resolution of the sample.

Weiss, Shimon (El Cerrito, CA); Chemla, Daniel S. (Kensington, CA); Ogletree, D. Frank (El Cerrito, CA); Botkin, David (San Francisco, CA)

1995-01-01T23:59:59.000Z

96

Ultrafast scanning probe microscopy  

DOE Patents (OSTI)

An ultrafast scanning probe microscopy method is described for achieving subpicosecond-temporal resolution and submicron-spatial resolution of an observation sample. In one embodiment of the present claimed invention, a single short optical pulse is generated and is split into first and second pulses. One of the pulses is delayed using variable time delay means. The first pulse is then directed at an observation sample located proximate to the probe of a scanning probe microscope. The scanning probe microscope produces probe-sample signals indicative of the response of the probe to characteristics of the sample. The second pulse is used to modulate the probe of the scanning probe microscope. The time delay between the first and second pulses is then varied. The probe-sample response signal is recorded at each of the various time delays created between the first and second pulses. The probe-sample response signal is then plotted as a function of time delay to produce a cross-correlation of the probe sample response. In so doing, the present invention provides simultaneous subpicosecond-temporal resolution and submicron-spatial resolution of the sample. 6 Figs.

Weiss, S.; Chemla, D.S.; Ogletree, D.F.; Botkin, D.

1995-05-16T23:59:59.000Z

97

Surface Science Opportunities in the Electronic Structure of ZnO (A Perspective on the Article, "Quantitative Analysis of Surface Donors in ZnO", by D.C. Look)  

SciTech Connect

ZnO is a wide-gap oxide semiconductor of considerable current interest for electronics, optoelectronics, and, possibly, semiconductor spintronics. Through selective electronic doping, ZnO can be a transparent conducting oxide [1], a UV light emitter [2,3], and, when alloyed with a few to several atomic percent of Co, Mn or other transition metals with unpaired d electrons, is squarely at the center of controversy in the field of high-Tc ferromagnetic semiconductors [4]. Despite this range of interests, fundamental aspects of electronic doping in ZnO remain poorly understood. For instance, theoretical calculations suggest that H at either interstitial or substitutional sites is responsible for the persistent n-type conductivity that frustrates efforts to achieve p-type behavior, an essential requirement for the fabrication of pn light emitting diodes and hole-mediated ferromagnetic coupling of Mn dopants [5,6]. Yet, experimental studies do not in general align with this prediction. Another interesting aspect of n-type conduction in ZnO is the appearance of a near-surface conducting channel that appears to be present in bulk crystals [7,8]. Although it has been a few years since the original observation of this phenomenon was described, detailed understanding is lacking. In this paper, David Look presents a transport study aimed at gaining insight into the phenomenon of near-surface conductivity in bulk ZnO. All samples investigated were unintentionally n-type, as is typical. The measured Hall data were interpreted using a two-layer conduction model based on standard charge balance equations. Look fit the temperature dependence of the electron mobility and carrier concentration and extracted the thicknesses of the surface conducting layer, which dominates at lower temperatures, for bulk crystals synthesized by different methods and marketed by different companies. By making reasonable assumptions about the surface acceptor density, the lower limit of the surface conducting layer thickness was extracted from the transport data. From a surface science perspective, two aspects of the investigation are of particular interest: (i) the donor concentration was enhanced by annealing in forming gas, which is 5% H2, and, (ii) despite relatively weak variation in the sheet carrier concentration, the surface conducting layer thickness (dsurf) varied from as large as 28 nm to as small as 1.5 nm, depending on the method of preparation and supplier. The ongoing exploration of this phenomenon begs for the kind of experiments that practitioners of surface, interface and thin-film science can readily conduct. In bulk crystals, is H doping really the cause? Answering this question represents a major challenge because the donor concentration is in the 1017-1018 cm-3 range. Determining the donor identity in this concentration range is a major experimental hurdle. How does dsurf depend on crystallographic orientation? How does the phenomenon depend on the extent of band bending? Does persistent photoconductivity come into play? Can the effect be modified by band bending modification via surface photovoltage effects? All of the above questions pertain to epitaxial films as well, but other questions also arise. How do the film thickness and strain state affect dsurf? Can the surface conduction effect be enhanced by judicious design and growth of quantum well structures made from ZnO, MgxZn1-xO, and/or CdxZn1-xO? Answering these and other questions that arise will expand our understanding of this fascinating and potentially important material, as well as pave the way for device applications.

Chambers, Scott A.

2007-12-01T23:59:59.000Z

98

Monitoring charge storage processes in nanoscale oxides using electrochemical scanning probe microscopy.  

Science Conference Proceedings (OSTI)

Advances in electrochemical energy storage science require the development of new or the refinement of existing in situ probes that can be used to establish structure - activity relationships for technologically relevant materials. The drive to develop reversible, high capacity electrodes from nanoscale building blocks creates an additional requirement for high spatial resolution probes to yield information of local structural, compositional, and electronic property changes as a function of the storage state of a material. In this paper, we describe a method for deconstructing a lithium ion battery positive electrode into its basic constituents of ion insertion host particles and a carbon current collector. This model system is then probed in an electrochemical environment using a combination of atomic force microscopy and tunneling spectroscopy to correlate local activity with morphological and electronic configurational changes. Cubic spinel Li{sub 1+x}Mn{sub 2-x}O{sub 4} nanoparticles are grown on graphite surfaces using vacuum deposition methods. The structure and composition of these particles are determined using transmission electron microscopy and Auger microprobe analysis. The response of these particles to initial de-lithiation, along with subsequent electrochemical cycling, is tracked using scanning probe microscopy techniques in polar aprotic electrolytes (lithium hexafluorophosphate in ethylene carbonate:diethylcarbonate). The relationship between nanoparticle size and reversible ion insertion activity will be a specific focus of this paper.

Zavadil, Kevin Robert; Lu, Ping; Huang, Jian Yu

2010-11-01T23:59:59.000Z

99

Colloids and Surfaces A: Physicochem. Eng. Aspects 385 (2011) 95103 Contents lists available at ScienceDirect  

E-Print Network (OSTI)

aerogel particles), where no analytical method is applicable due to the complexity of the coatings May 2011 Available online 2 June 2011 Keywords: Superhydrophobic coating Granular surface Critical distributed spherical parti- cles (e.g., superhydrophobic coatings developed by depositing of hydrophobic

Tafreshi, Hooman Vahedi

100

Science Afternoons  

Science Conference Proceedings (OSTI)

Science Afternoon: From Invention to Marketplace. Science Afternoon: Focus on ... Understand It? Science Afternoons. To continue ...

2013-01-16T23:59:59.000Z

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Open-loop Band excitation Kelvin Probe Force Microscopy  

Science Conference Proceedings (OSTI)

A multidimensional scanning probe microscopy approach for quantitative, cross-talk free mapping of surface electrostatic properties is demonstrated. Open-loop band excitation Kelvin probe force microscopy (OL BE KPFM) probes the full response-frequency-potential surface at each pixel at standard imaging rates. The subsequent analysis reconstructs work function, tip surface capacitance gradient and resonant frequency maps, obviating feedback-related artifacts. OL BE KPFM imaging is demonstrated for several materials systems with topographic, potential and combined contrast. This approach combines the features of both frequency and amplitude KPFM and allows complete decoupling of topographic and voltage contributions to the KPFM signal.

Guo, Senli [ORNL; Kalinin, Sergei V [ORNL; Jesse, Stephen [ORNL

2012-01-01T23:59:59.000Z

102

Vector potential photoelectron microscopy  

SciTech Connect

A new class of electron microscope has been developed for the chemical microanalysis of a wide range of real world samples using photoelectron spectroscopy. Highly structured, three-dimensional samples, such as fiber mats and fracture surfaces can be imaged, as well as insulators and magnetic materials. The new microscope uses the vector potential field from a solenoid magnet as a spatial reference for imaging. A prototype instrument has demonstrated imaging of uncoated silk, magnetic steel wool, and micron-sized single strand tungsten wires.

Browning, R. [R. Browning Consultants, 14 John Street, Shoreham, New York 11786 (United States)

2011-10-15T23:59:59.000Z

103

X-ray Microscopy and Imaging (XSD-XMI)  

NLE Websites -- All DOE Office Websites (Extended Search)

Imaging (XMI) Imaging (XMI) About XMI Science and Research Beamlines Highlights Software and Tools Intranet Search APS... Argonne Home > Advanced Photon Source > Contacts FAQs Beamlines News Publications APS Email Portal APS Intranet APS Phonebook APS Quick Links for Users APS Safety and Training Welcome to the X-ray Microscopy and Imaging group (XMI)! X-ray Microscopy and Imaging is part of the X-ray Science Division at the Advanced Photon Source. We develop and support a diverse and multidisciplinary user research program at Sectors 2 and 32 of the APS, with the overall goal to image and study materials structures at spatial and temporal resolutions that are most scientifically relevant to the cutting-edge advances in materials, biological, environmental, and biomedical sciences. To achieve this goal, we actively engage in various research activities including

104

Materials Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Materials Science science-innovationassetsimagesicon-science.jpg Materials Science National security depends on science and technology. The United States relies on Los Alamos...

105

Strengthening Today's Science Talent to Become Tomorrow's Science Leaders |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Today's Science Talent to Become Tomorrow's Science Today's Science Talent to Become Tomorrow's Science Leaders Strengthening Today's Science Talent to Become Tomorrow's Science Leaders December 15, 2010 - 11:56am Addthis Director Brinkman Director Brinkman Director of the Office of Science A hidden strength of science is its diversity. That strength was visible yesterday as the Energy Department celebrated its 13 winners of the Presidential Early Career Award for Scientists and Engineers (PECASE). Secretary Chu, Principal Deputy Administrator for the National Nuclear Security Administration Neile L. Miller and Undersecretary for Science Steve Koonin joined me in honoring these awardees, outstanding in science and service. Three winners came from Oak Ridge National Laboratory. Sergei V. Kalinin won for applying his insights into scanning probe microscopy principles to

106

Forward modeling of electron microscopy  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2014 TMS Annual Meeting & Exhibition. Symposium , Data Analytics for Materials Science and Manufacturing. Presentation Title ...

107

Graphene formation on metal surfaces investigated by in-situ scanning tunneling microscopy This article has been downloaded from IOPscience. Please scroll down to see the full text article.  

E-Print Network (OSTI)

manufacturing high-quality graphene has remained a challenge. To date, most of the high-quality graphene of the original area. The growth of graphene stopped after the whole island had become two layers high. Image size density deriving from equilibrium with the graphene islands on the surface. The point where the black line

Frenken, J.W.M.

108

Electron Microscopy Study of Tin Whisker Growth  

Science Conference Proceedings (OSTI)

The growth of tin whiskers formed on sputtered tin layers deposited on brass was studied using electron microscopy. The occurrence of whiskers appeared to be largely independent of the macroscopic stress state in the film; rather it was microscopic compressive stresses arising from the formation of an intermetallic phase that appeared to be the necessary precursor. Whisker morphology was a result of whether nucleation had occurred on single grains or on multiple grains. In the latter case, the whiskers had a fluted or striated surface. The formation of whiskers on electron transparent samples was demonstrated. These samples showed the whiskers were monocrystalline and defect free, and that the growth direction could be determined.

Norton, Murray G. (Washington State University); Lebret, Joel (8392)

2003-03-30T23:59:59.000Z

109

Los Alamos: MST-MTM: EML: Electron Microscopy Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

Electron Microscopy Laboratory, MST-6 Electron Microscopy Laboratory, MST-6 MST-6 Home Home In the MSL FEI Tecnai F30 Analytical TEM/STEM JEOL 6300FXV High Resolution SEM JEOL 3000F High Resolution Transmission Electron Microscope Philips XL30 F Scanning Electron Microscope & Orientation Imaging System Phillips CM30 Transmission Electron Microscope In the Sigma Building JEOL 840 EPMA with Wavelength Dispersive Spectroscopy FEI Strata DB235 FIB/SEM FEI XL30 Environmental Scanning Electron Microscope & Orientation Imaging System CONTACTS Bob Field 665.3938 Pat Dickerson 665.3036 Rob Dickerson 667.6337 Rod McCabe 606.1649 The Electron Microscopy Laboratory's Capabilities The Electron Microscopy Laboratory's Capabilities The Electron Microscopy Laboratory (EML) is part of MST-6, the Materials Technology - Metallurgy Group within the Materials Science and Technology Division at Los Alamos National Laboratory. It is a facility dedicated to the characterization of materials primarily through imaging, chemical, and crystallographic analyses of material microstructures with several electron and ion beam instruments. Accessory characterization techniques and equipment include energy dispersive x-ray analysis (EDS), wavelength dispersive x-ray analysis (WDS), electron backscatter diffraction (EBSD) and orientation imaging microscopy (OIM), and electron energy loss spectroscopy (EELS).

110

Science & technology review  

Science Conference Proceedings (OSTI)

This document is the August, 1995 issue of the Science and Technology review, a Lawrence Berkeley Laboratory publication. It contains two major articles, one on Scanning Tunneling Microscopy - as applied to materials engineering studies, and one on risk assessment, in this case looking primarily at a health care problem. Separate articles will be indexed from this journal to the energy database.

NONE

1995-08-01T23:59:59.000Z

111

Feed Microscopy Laboratory Proficiency Testing Program  

Science Conference Proceedings (OSTI)

Lab Proficiency Testing service for Feed Microscopy using microscopic examination of animal feed samples and AAFCO terminology. Feed Microscopy Laboratory Proficiency Testing Program Agricultural Microscopy agri-food sector agricultural Agricultural Micr

112

Findiing Science with Science Page 1 Finding Science with Science  

E-Print Network (OSTI)

Findiing Science with Science Page 1 Finding Science with Science: Evaluating the Use Stojanovicd , Femke Reitsmae , Lukasz Korczynskif and Boyan Brodaricg a Centre for Geospatial Science of Earth and Ocean Sciences, Cardiff University, Cardiff, UK; e Department of Geography, University

Stock, Kristin

113

Surface Ozone Measured at GLOBE Schools in the Czech Republic: A Demonstration of the Importance of Student Contribution to the Larger Science Picture  

Science Conference Proceedings (OSTI)

Global Learning and Observations to Benefit the Environment (GLOBE) is a worldwide, hands-on, primary and secondary school–based education and science program, which is developed to give students a chance to perform real science by making ...

John K. Creilson; Margaret R. Pippin; Irene H. Ladd; Jack Fishman; Bryana L. Henderson; Dana Votápková; Ilona Krpcová

2008-04-01T23:59:59.000Z

114

Science Pillars  

NLE Websites -- All DOE Office Websites (Extended Search)

Environment Feature Stories Public Reading Room: Environmental Documents, Reports LANL Home Phonebook Calendar Video Science & Innovation Science Pillars Science Pillars...

115

Slow positron beam techniques for solids and surfaces. Fifth international workshop  

Science Conference Proceedings (OSTI)

These proceedings represent the contributions of leading scientists in the study of solids and surfaces using positron beams as probes. The papers presented at the workshop covered a range of topics including positron beam techniques, positron microscopy, defect depth profiling, Low Energy Positron Diffraction (LEPD), etc. There were sixty nine papers presented at the workshop, out of these, nine have been abstracted for the Energy Science and Technology database. (AIP)

Ottewitte, E. (ed.) (Idaho National Engineering Laboratory (United States)); Weiss, A.H. (ed.) (Physics Department, University of Texas at Arlington, Box 19059, Arlington, TX 76019 (United States))

1994-01-01T23:59:59.000Z

116

Science DMZ  

NLE Websites -- All DOE Office Websites (Extended Search)

ESnet Overview ESnet Staff Governance Our Network Case Studies OSCARS Case Studies Science DMZ Case Studies Science DMZ CU Science DMZ Penn State & VTTI Science DMZ NOAA...

117

Electron microscopy of ceramic superconductors  

SciTech Connect

The critical current Jc is at least as important as Tc (transition temperature) for applications in superconducting materials. Jc is strongly dependent on microstructure and, in consequence, electron microscopy will continue to be important in the development of practical ceramic superconductors. We will review the progress that has been made over the past year or so in studying the superconductors by electron microscopy techniques of all kinds--conventional, high resolution, analytical, etc. A thorough review is impossible but a bibliography is available, as well as two special issues of Journals. 25 refs., 9 figs.

Mitchell, T.E.; Roy, T.

1988-01-01T23:59:59.000Z

118

Electron Microscopy of Carbon Nanotube Composites  

Science Conference Proceedings (OSTI)

Electron Microscopy of Carbon Nanotube Composites. Summary: Carbon nanomaterials such as carbon nanotubes (CNTs ...

2013-07-01T23:59:59.000Z

119

Microscopy for STEM Educators - SPIE Conference 2012  

Science Conference Proceedings (OSTI)

SPIE Conference 2012. SPIE Conference 2012. ... Microscopy for STEM Educators - SPIE Conference 2012. Sound interesting? ...

2012-05-09T23:59:59.000Z

120

Materials Science  

Science Conference Proceedings (OSTI)

Materials Science. Summary: ... Description: Group focus in materials science (inkjet metrology, micro-macro, advanced characterizations). ...

2012-10-02T23:59:59.000Z

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

SURFACE SCIENCE INVESTIGATION OF CORROSION  

E-Print Network (OSTI)

for direct energy consumption can also be used in the pursuit of Syngas technology CH4+H2OCO+3H2 CO+H2OCO2+H Syngas is an environmentally friendly pathway for introducingAmerica to a hydrogen economy However Syngas allows for sequestering of CO2 making it cleaner than energy production from petroleum and coal

Petta, Jason

122

4D Functional Materials Science with X-ray Microscopy  

Science Conference Proceedings (OSTI)

Ultrafast Electron Diffraction Studies of Lattice Dynamics in Thin Bismuth Films · Understanding Fatigue and Corrosion-Fatigue Behavior by In Situ 3D X-ray ...

123

Electron Microscopy: Its Role in Materials Science, The Mike Meshii ...  

Science Conference Proceedings (OSTI)

Mar 1, 2003 ... Out of Print. Description This collection of papers from the upcoming 2003 TMS Annual Meeting & Exhibition captures current research activities ...

124

Materials Applications of Photoelectron Emission Microscopy  

SciTech Connect

Photoelectron emission microscopy (PEEM) is a versatile technique that can image a variety of materials including metals, semiconductors and even insulators. Under favorable conditions the most advanced aberration corrected instruments have a spatial resolution approaching 2 nm. Although PEEM cannot compete with transmission or scanning electron microscopies for ultimate resolution, the technique is much more gentle and has the unique advantage of imaging structure as well as electronic and magnetic states on the nanoscale. Since the image contrast is derived from spatial variations in electron photoemission intensity, PEEM is ideal for interrogating both static and dynamic electronic properties of complex nanostructured materials. PEEM can be performed using a variety of photoexcitation sources including synchrotron emission, femtosecond laser pulses and conventional UV lamp emission. Each source has advantages, for example, fs laser excitation enables time-resolved imaging for study of ultrafast dynamics of surface intermediate states while tunable synchrotron sources allow chemically specific excitation. Even more detail can be extracted from energy resolved PEEM. Here, we review the key principles and contrast mechanisms of PEEM and briefly summarize materials applications of PEEM with examples of a thermally-induced structural phase transformation in barium titanate, inter-diffusion between thin metal copper and ruthenium layers, and multiphoton imaging of polystyrene nanoparticles on a silver coated substrate.

Xiong, Gang; Shao, Rui; Peppernick, Samuel J.; Joly, Alan G.; Beck, Kenneth M.; Hess, Wayne P.; Cai, Mingdong; Duchene, J.; Wang, J. Y.; Wei, Wei

2010-12-30T23:59:59.000Z

125

SCIENCE CHINA Technological Sciences  

E-Print Network (OSTI)

SCIENCE CHINA Technological Sciences © Science China Press and Springer-Verlag Berlin Heidelberg distribution and its relationship with soil water and salt under mulched drip irrigation in Xinjiang of China of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China Received July 8, 2010; accepted

Ahmad, Sajjad

126

Optical Microscopy Information at NIST  

Science Conference Proceedings (OSTI)

... Improving Performance of a Solar Fuel Catalyst. ... Path for Tracking Fluorescent Nanoparticles Using a ... Surface and Nanostructure Metrology Group. ...

2010-10-05T23:59:59.000Z

127

Variable temperature electrochemical strain microscopy of Sm-doped ceria  

Science Conference Proceedings (OSTI)

Variable temperature electrochemical strain microscopy has been used to study the electrochemical activity of Sm-doped ceria as a function of temperature and bias. The electrochemical strain microscopy hysteresis loops have been collected across the surface at different temperatures and the relative activity at different temperatures has been compared. The relaxation behavior of the signal at different temperatures has been also evaluated to relate kinetic process during bias induced electrochemical reactions with temperature and two different kinetic regimes have been identified. The strongly non-monotonic dependence of relaxation behavior on temperature is interpreted as evidence for water-mediated mechanisms.

Jesse, Stephen [ORNL; Morozovska, A. N. [National Academy of Science of Ukraine, Kiev, Ukraine; Kalinin, Sergei V [ORNL; Eliseev, E. A. [National Academy of Science of Ukraine, Kiev, Ukraine; Yang, Nan [ORNL; Doria, Sandra [ORNL; Tebano, Antonello [ORNL

2013-01-01T23:59:59.000Z

128

Soft x-ray spectromicroscopy development for materials science at the Advanced Light Source  

Science Conference Proceedings (OSTI)

Several third generation synchrotron radiation facilities are now operational and the high brightness of these photon sources offers new opportunities for x-ray microscopy. Well developed synchrotron radiation spectroscopy techniques are being applied in new instruments capable of imaging the surface of a material with a spatial resolution smaller than one micron. There are two aspects to this. One is to further the field of surface science by exploring the effects of spatial variations across a surface on a scale not previously accessible to x-ray measurements. The other is to open up new analytical techniques in materials science using x-rays, on a spatial scale comparable to that of the processes or devices to be studied. The development of the spectromicroscopy program at the Advanced Light Source will employ a variety of instruments, some are already operational. Their development and use will be discussed, and recent results will be presented to illustrate their capabilities.

Warwick, T.; Padmore, H. [Lawrence Berkeley National Lab., CA (United States); Ade, H. [North Carolina State Univ., Raleigh, NC (United States); Hitchcock, A.P. [McMaster Univ., Hamilton, Ontario (Canada); Rightor, E.G. [Dow Texas Polymer Center, Freeport, TX (United States); Tonner, B.P. [Univ. of Wisconsin, Milwaukee, WI (United States)

1996-08-01T23:59:59.000Z

129

Schmahl, Kirz Receive Compton Award for Contributions to X-ray Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Schmahl, Kirz Received Compton Award for Contributions to X-ray Microscopy Schmahl, Kirz Received Compton Award for Contributions to X-ray Microscopy Image of Compton Award The Advanced Photon Source (APS) and APS Users Organization (APSUO) are very pleased to announce that the 2005 Arthur H. Compton Award was given to GĂĽnter Schmahl and Janos Kirz for pioneering and developing the field of x-ray microscopy using Fresnel zone plates. Because of their leadership over the last 30 years, x-ray microscopy has evolved into a powerful method for the study of nanoscale structures and phenomena in many areas of science. Their achievements have opened up productive research avenues in biology, polymers, electronic nanostructures, magnetic materials, meteoritics, and environmental sciences. " GĂĽnter Schmahl and Janos Kirz have created a

130

Science Highlights  

NLE Websites -- All DOE Office Websites (Extended Search)

Science Highlights Science Highlights Print Science Highlights Featured scientific research based on publications resulting from work done at the ALS. Highlights are nominated by...

131

Scanning tunneling microscopy studies on the structure and stability of model catalysts  

E-Print Network (OSTI)

An atomic level understanding of the structure and stability of model catalysts is essential for surface science studies in heterogeneous catalysis. Scanning tunneling microscopy (STM) can operate both in UHV and under realistic pressure conditions with a wide temperature span while providing atomic resolution images. Taking advantage of the ability of STM, our research focuses on 1) investigating the structure and stability of supported Au catalysts, especially under CO oxidation conditions, and 2) synthesizing and characterizing a series of alloy model catalysts for future model catalytic studies. In our study, Au clusters supported on TiO2(110) have been used to model supported Au catalysts. Our STM studies in UHV reveal surface structures of TiO2(110) and show undercoordinated Ti cations play a critical role in the nucleation and stabilization of Au clusters on TiO2(110). Exposing the TiO2(110) surface to water vapor causes the formation of surface hydroxyl groups and subsequently alters the growth kinetics of Au clusters on TiO2(110). STM studies on Au/TiO2(110) during CO oxidation demonstrate the real surface of a working catalyst. Au clusters supported on TiO2(110) sinter rapidly during CO oxidation, but are mostly stable in the single component reactant gas, either CO or O2. The sintering kinetics of supported Au clusters has been measured during CO oxidation and gives an activation energy, which supports the mechanism of CO oxidation induced sintering. CO oxidation was also found to accelerate the surface diffusion of Rh(110). Our results show a direct correlation between the reaction rate of CO oxidation and the diffusion rate of surface metal atoms. Synthesis of alloy model catalysts have also been attempted in our study with their structures successfully characterized. Planar Au-Pd alloy films has been prepared on a Rh(100) surface with surface Au and Pd atoms distinguished by STM. The growth of Au-Ag alloy clusters have been studied by in-situ STM on a cluster-to-cluster basis. Moreover, the atomic structure of a solution-prepared Ru3Sn3 cluster has been resolved on an ultra-thin silica film surface. The atomic structure and adsorption sites of the ultrathin silica film have also been well characterized in our study.

Yang, Fan

2007-12-01T23:59:59.000Z

132

131Cognitive Science COGNITIVE SCIENCE  

E-Print Network (OSTI)

131Cognitive Science COGNITIVE SCIENCE PROFESSOR ELMES* MAJOR A major in cognitive science leading courses: Cognitive Science 110, 395, 403, 473; Computer Science 111, 211; Philosophy 106, 313; Psychology Science: Com- puter Science 295 (LISP, PROLOG or C), 313, 315; Psychology 207 b. Philosophical Foundations

Marsh, David

133

SC e-journals, Materials Science  

Office of Scientific and Technical Information (OSTI)

Materials Science Materials Science Acta Materialia Advanced Composite Materials Advanced Energy Materials Advanced Engineering Materials Advanced Functional Materials Advanced Materials Advanced Powder Technology Advances in Materials Science and Engineering - OAJ Annual Review of Materials Research Applied Composite Materials Applied Mathematical Modelling Applied Mathematics & Computation Applied Physics A Applied Physics B Applied Surface Science Archives of Computational Materials Science and Surface Engineering - OAJ Archives of Materials Science and Engineering - OAJ Carbohydrate Polymers Carbon Catalysis Science & Technology Cellulose Cement and Concrete Research Ceramic Engineering and Science Proceedings Ceramics International Chalcogenide Letters - OAJ Chemical and Petroleum Engineering

134

Visual-servoing optical microscopy  

DOE Patents (OSTI)

The present invention provides methods and devices for the knowledge-based discovery and optimization of differences between cell types. In particular, the present invention provides visual servoing optical microscopy, as well as analysis methods. The present invention provides means for the close monitoring of hundreds of individual, living cells over time; quantification of dynamic physiological responses in multiple channels; real-time digital image segmentation and analysis; intelligent, repetitive computer-applied cell stress and cell stimulation; and the ability to return to the same field of cells for long-term studies and observation. The present invention further provides means to optimize culture conditions for specific subpopulations of cells.

Callahan, Daniel E. (Martinez, CA); Parvin, Bahram (Mill Valley, CA)

2011-05-24T23:59:59.000Z

135

Visual-servoing optical microscopy  

DOE Patents (OSTI)

The present invention provides methods and devices for the knowledge-based discovery and optimization of differences between cell types. In particular, the present invention provides visual servoing optical microscopy, as well as analysis methods. The present invention provides means for the close monitoring of hundreds of individual, living cells over time: quantification of dynamic physiological responses in multiple channels; real-time digital image segmentation and analysis; intelligent, repetitive computer-applied cell stress and cell stimulation; and the ability to return to the same field of cells for long-term studies and observation. The present invention further provides means to optimize culture conditions for specific subpopulations of cells.

Callahan, Daniel E. (Martinez, CA); Parvin, Bahram (Hercules, CA)

2009-06-09T23:59:59.000Z

136

High Resolution Transmission Microscopy Characterization of an ...  

Science Conference Proceedings (OSTI)

High Resolution Transmission Microscopy Characterization of an Oxide ... Line Dislocation Dynamics Simulation of fundamental dislocation properties in ...

137

Microscopy Technique Could Help Computer Industry ...  

Science Conference Proceedings (OSTI)

Microscopy Technique Could Help Computer Industry Develop 3-D Components. From NIST Tech Beat: June 25, 2013. ...

2013-06-25T23:59:59.000Z

138

Transmission Electron Microscopy Studies on Lithium Battery ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2012 TMS Annual Meeting & Exhibition. Symposium , Energy Nanomaterials. Presentation Title, Transmission Electron Microscopy ...

139

Scanning magnetoresistance microscopy of atom chips  

Science Conference Proceedings (OSTI)

Surface based geometries of microfabricated wires or patterned magnetic films can be used to magnetically trap and manipulate ultracold neutral atoms or Bose-Einstein condensates. We investigate the magnetic properties of such atom chips using a scanning magnetoresistive (MR) microscope with high spatial resolution and high field sensitivity. By comparing MR scans of a permanent magnetic atom chip to field profiles obtained using ultracold atoms, we show that MR sensors are ideally suited to observe small variations of the magnetic field caused by imperfections in the wires or magnetic materials which ultimately lead to fragmentation of ultracold atom clouds. Measurements are also provided for the magnetic field produced by a thin current-carrying wire with small geometric modulations along the edge. Comparisons of our measurements with a full numeric calculation of the current flow in the wire and the subsequent magnetic field show excellent agreement. Our results highlight the use of scanning MR microscopy as a convenient and powerful technique for precisely characterizing the magnetic fields produced near the surface of atom chips.

Volk, M.; Whitlock, S.; Wolff, C. H.; Hall, B. V.; Sidorov, A. I. [ARC Centre of Excellence for Quantum-Atom Optics and Centre for Atom Optics and Ultrafast Spectroscopy, Swinburne University of Technology, Hawthorn, Victoria 3122 (Australia)

2008-02-15T23:59:59.000Z

140

Biological Sciences at NERSC  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Sciences Biological Sciences Biological Sciences Better knowledge of biomolecules and processes they undergo is vital for achieving a predictive, systems-level understanding of complex biological systems that have potential use in bioenergy, carbon cycling and biosequestration, and biogeochemistry. Areas that NERSC helps to enable include: Research activities using genomics and systems biology to understand plants and microbes. Developing and applying atomistic-molecular to coarse-grained mathematical models of potential energy surfaces, characterizing these surfaces through sampling techniques and finally generating ensemble or time averaged physical properties of biological phenomena. Fundamental research in the redesign of microbial metabolic processes to harness their potential in the conversion of biomass to

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

X-Ray Diffraction Microscopy of Magnetic Structures  

NLE Websites -- All DOE Office Websites (Extended Search)

X-Ray Diffraction Microscopy of Magnetic Structures Print X-Ray Diffraction Microscopy of Magnetic Structures Print science brief icon Scientists working at ALS Beamline 12.0.2.2 have demonstrated a new x-ray technique for producing short-exposure nanoscale images of the magnetic structure of materials. The new method combines aspects of coherent x-ray diffraction, which can determine 3-D charge distributions, and resonant magnetic scattering, which is sensitive to magnetic structures. Physicists have used coherent x-ray diffraction to measure the electron density of complicated molecules. The formula used to make these calculations contains terms that relate to the electron spin of magnetic atoms, but these terms are traditionally ignored since coherent x-ray diffraction has not been used to retrieve magnetic information. Using the full formula allows for the determination of not only the electron density, but also the magnetic spin distribution and its orientation.

142

X-Ray Diffraction Microscopy of Magnetic Structures  

NLE Websites -- All DOE Office Websites (Extended Search)

X-Ray Diffraction Microscopy of Magnetic Structures Print X-Ray Diffraction Microscopy of Magnetic Structures Print science brief icon Scientists working at ALS Beamline 12.0.2.2 have demonstrated a new x-ray technique for producing short-exposure nanoscale images of the magnetic structure of materials. The new method combines aspects of coherent x-ray diffraction, which can determine 3-D charge distributions, and resonant magnetic scattering, which is sensitive to magnetic structures. Physicists have used coherent x-ray diffraction to measure the electron density of complicated molecules. The formula used to make these calculations contains terms that relate to the electron spin of magnetic atoms, but these terms are traditionally ignored since coherent x-ray diffraction has not been used to retrieve magnetic information. Using the full formula allows for the determination of not only the electron density, but also the magnetic spin distribution and its orientation.

143

NCEM National Center for Electron Microscopy: About NCEM  

NLE Websites -- All DOE Office Websites (Extended Search)

NCEM NCEM The National Center for Electron Microscopy (NCEM) is one of the world's foremost centers for electron microscopy and microcharacterization. It is an Office of Science User Facility operated for the U.S. Department of Energy by Lawrence Berkeley National Laboratory. Located adjacent to the University of California, Berkeley, NCEM was established in 1983 to maintain a forefront research center for electron-optical characterization of materials with state-of-the-art instrumentation and expertise. As a national user facility, NCEM is open to scientists from universities, government and industrial laboratories. The center provides cutting-edge instrumentation, techniques and expertise for advanced electron beam microcharacterization of materials at high spatial

144

Biological Imaging by Soft X-Ray Diffraction Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Imaging by Soft X-Ray Diffraction Microscopy Print Biological Imaging by Soft X-Ray Diffraction Microscopy Print Electron and x-ray microscopes are a valuable tool for both the life and materials sciences, but they are limited in their ability to image with nanometer-scale resolution in three dimensions nonperiodic objects that are several microns in size. To fill this gap, the technique of coherent x-ray diffraction imaging now under development takes advantage of the penetrating power of x rays while simultaneously removing the limitations imposed by lens-based optical systems. Researchers from Stony Brook University, in collaboration with scientists at the ALS and Cornell University, have taken a large step in this direction by using a lensless x-ray diffraction microscope to image a freeze-dried yeast cell to better than 30-nm resolution. Images were made at several angular orientations of the cell.

145

X-Ray Diffraction Microscopy of Magnetic Structures  

NLE Websites -- All DOE Office Websites (Extended Search)

X-Ray Diffraction Microscopy of Magnetic Structures Print X-Ray Diffraction Microscopy of Magnetic Structures Print science brief icon Scientists working at ALS Beamline 12.0.2.2 have demonstrated a new x-ray technique for producing short-exposure nanoscale images of the magnetic structure of materials. The new method combines aspects of coherent x-ray diffraction, which can determine 3-D charge distributions, and resonant magnetic scattering, which is sensitive to magnetic structures. Physicists have used coherent x-ray diffraction to measure the electron density of complicated molecules. The formula used to make these calculations contains terms that relate to the electron spin of magnetic atoms, but these terms are traditionally ignored since coherent x-ray diffraction has not been used to retrieve magnetic information. Using the full formula allows for the determination of not only the electron density, but also the magnetic spin distribution and its orientation.

146

Biological Imaging by Soft X-Ray Diffraction Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Imaging by Soft X-Ray Diffraction Microscopy Print Biological Imaging by Soft X-Ray Diffraction Microscopy Print Electron and x-ray microscopes are a valuable tool for both the life and materials sciences, but they are limited in their ability to image with nanometer-scale resolution in three dimensions nonperiodic objects that are several microns in size. To fill this gap, the technique of coherent x-ray diffraction imaging now under development takes advantage of the penetrating power of x rays while simultaneously removing the limitations imposed by lens-based optical systems. Researchers from Stony Brook University, in collaboration with scientists at the ALS and Cornell University, have taken a large step in this direction by using a lensless x-ray diffraction microscope to image a freeze-dried yeast cell to better than 30-nm resolution. Images were made at several angular orientations of the cell.

147

Biological Imaging by Soft X-Ray Diffraction Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Imaging by Soft X-Ray Diffraction Microscopy Print Biological Imaging by Soft X-Ray Diffraction Microscopy Print Electron and x-ray microscopes are a valuable tool for both the life and materials sciences, but they are limited in their ability to image with nanometer-scale resolution in three dimensions nonperiodic objects that are several microns in size. To fill this gap, the technique of coherent x-ray diffraction imaging now under development takes advantage of the penetrating power of x rays while simultaneously removing the limitations imposed by lens-based optical systems. Researchers from Stony Brook University, in collaboration with scientists at the ALS and Cornell University, have taken a large step in this direction by using a lensless x-ray diffraction microscope to image a freeze-dried yeast cell to better than 30-nm resolution. Images were made at several angular orientations of the cell.

148

Biological Imaging by Soft X-Ray Diffraction Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Imaging by Soft X-Ray Diffraction Microscopy Print Biological Imaging by Soft X-Ray Diffraction Microscopy Print Electron and x-ray microscopes are a valuable tool for both the life and materials sciences, but they are limited in their ability to image with nanometer-scale resolution in three dimensions nonperiodic objects that are several microns in size. To fill this gap, the technique of coherent x-ray diffraction imaging now under development takes advantage of the penetrating power of x rays while simultaneously removing the limitations imposed by lens-based optical systems. Researchers from Stony Brook University, in collaboration with scientists at the ALS and Cornell University, have taken a large step in this direction by using a lensless x-ray diffraction microscope to image a freeze-dried yeast cell to better than 30-nm resolution. Images were made at several angular orientations of the cell.

149

ARM - TWP Science  

NLE Websites -- All DOE Office Websites (Extended Search)

PacificTWP Science PacificTWP Science TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts TWP Science New VSAT dish installed in the Tropical Western Pacific. New VSAT dish installed in the Tropical Western Pacific. The following are the basic science goals of the TWP component of the ARM Climate Research Facility: Determine the magnitude of the surface radiation budget terms and determine their spatial and temporal variability. Identify bulk and optical properties of clouds in the TWP and how these properties affect the radiation budget. Understand the linkages among sea surface temperature,

150

Near-Field Microscopy Through a SiC Superlens  

E-Print Network (OSTI)

Near-Field Microscopy Through a SiC Superlens Thomas Taubner,1 * Dmitriy Korobkin,2 Yaroslav of the slab (4­6). In our experiment, we placed a SiC superlens (7) between the scan- ning probe tip-crystalline SiC membrane coated on both sides with 220-nm-thick SiO2 layers (7). The two surfaces of the sandwich

Shvets, Gennady

151

Faculty of Science General Science  

E-Print Network (OSTI)

Faculty of Science General Science The General Science program gives you maximum flexibility to explore the sciences, plus the core requirements you need for on-going, specialized studies. www.uwindsor.ca/science Rigorous, Enriching Programs The BSc General Science program is a great way to explore your many interests

152

Wine Science Wine Sciencee Science  

E-Print Network (OSTI)

Wine Science Wine Sciencee Science Thomas Henick-Kling Professor of Enology Director of Viticulture & Enology Program #12;Wine Science Wine Science Growth of Washington Wine Industry #12;Wine Science Wine Science Wine Grapes utilized 2007 2008 2009 2010 WA 127,000 145,000 156,000 160,000 NY 24,000 26,000 30

153

Science Conference Proceedings : About  

Office of Scientific and Technical Information (OSTI)

Science Conference Proceedings - Home Science Conference Proceedings - Home Science Conference Proceedings - About Science Conference Proceedings - Advanced Search Science...

154

Transmission Electron Microscopy Study of InN Nanorods  

E-Print Network (OSTI)

Transmission Electron Microscopy Study of InN Nanorods Z.epitaxy and studied by transmission electron microscopy,establish their quality. Transmission electron microscopy (

Liliental-Weber, Z.; Li, X.; Kryliouk, Olga; Park, H.J.; Mangum, J.; Anderson, T.

2008-01-01T23:59:59.000Z

155

Chemistry and Materials Science progress report, first half FY 1992. Weapons-Supporting Research and Laboratory Directed Research and Development  

SciTech Connect

This report contains sections on: Fundamentals of the physics and processing of metals; interfaces, adhesion, and bonding; energetic materials; plutonium research; synchrotron radiation-based materials science; atomistic approach to the interaction of surfaces with the environment: actinide studies; properties of carbon fibers; buried layer formation using ion implantation; active coherent control of chemical reaction dynamics; inorganic and organic aerogels; synthesis and characterization of melamine-formaldehyde aerogels; structural transformation and precursor phenomena in advanced materials; magnetic ultrathin films, surfaces, and overlayers; ductile-phase toughening of refractory-metal intermetallics; particle-solid interactions; electronic structure evolution of metal clusters; and nanoscale lithography induced chemically or physically by modified scanned probe microscopy.

Not Available

1992-07-01T23:59:59.000Z

156

Observation of Localized Corrosion of Ni-Based Alloys Using Coupled Orientation Imaging Microscopy and Atomic Force Microscopy  

DOE Green Energy (OSTI)

We present a method for assessing the relative vulnerabilities of distinct classes of grain boundaries to localized corrosion. Orientation imaging microscopy provides a spatial map which identifies and classifies grain boundaries at a metal surface. Once the microstructure of a region of a sample surface has been characterized, a sample can be exposed to repeated cycles of exposure to a corrosive environment alternating with topographic measurement by an atomic force microscope in the same region in which the microstructure had been mapped. When this procedure is applied to Ni and Ni-based alloys, we observe enhanced attack at random grain boundaries relative to special boundaries and twins in a variety of environments.

Bedrossian, P.J.

1999-11-24T23:59:59.000Z

157

Spectroscopic imaging in electron microscopy  

Science Conference Proceedings (OSTI)

In the scanning transmission electron microscope, multiple signals can be simultaneously collected, including the transmitted and scattered electron signals (bright field and annular dark field or Z-contrast images), along with spectroscopic signals such as inelastically scattered electrons and emitted photons. In the last few years, the successful development of aberration correctors for the electron microscope has transformed the field of electron microscopy, opening up new possibilities for correlating structure to functionality. Aberration correction not only allows for enhanced structural resolution with incident probes into the sub-angstrom range, but can also provide greater probe currents to facilitate mapping of intrinsically weak spectroscopic signals at the nanoscale or even the atomic level. In this issue of MRS Bulletin, we illustrate the power of the new generation of electron microscopes with a combination of imaging and spectroscopy. We show the mapping of elemental distributions at atomic resolution and also the mapping of electronic and optical properties at unprecedented spatial resolution, with applications ranging from graphene to plasmonic nanostructures, and oxide interfaces to biology.

Pennycook, Stephen J [ORNL; Colliex, C. [Universite Paris Sud, Orsay, France

2012-01-01T23:59:59.000Z

158

Electron Microscopy | Center for Functional Nanomaterials  

NLE Websites -- All DOE Office Websites (Extended Search)

Electron Microscopy Facility Electron Microscopy Facility Electron Microscopy This facility consists of four top-of-the line transmission electron microscopes, two of which are highly specialized instruments capable of extreme levels of resolution, achieved through spherical aberration correction. The facility is also equipped with extensive sample-preparation capabilities. The scientific interests of the staff focus on understanding the microscopic origin of the physical and chemical behavior of materials, with specific emphasis on in-situ studies of materials in native, functional environments. Capabilities Atomic-resolution imaging of internal materials structure with scanning transmission and transmission electron microscopy Spectroscopic characterization with energy dispersive x-ray

159

Frontiers of In Situ Transmission Electron Microscopy  

Science Conference Proceedings (OSTI)

... significance and versatility of in situ transmission electron microscopy (TEM) has ... applied stimulus is observed as it happens inside the microscope. ...

2013-05-29T23:59:59.000Z

160

Maximizing fluorescence collection efficiency in multiphoton microscopy  

E-Print Network (OSTI)

-depth limit in two-photon microscopy," J. Opt. Soc. Am. A 23(12), 3139­3149 (2006). 9. D. Kobat, M. E. Durst

Levene, Michael J.

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Grand Opening Slated for Electron Microscopy Facility  

Science Conference Proceedings (OSTI)

4 days ago ... The Ohio State University Center for Electron Microscopy and Analysis ... There are also two X-ray diffractometer (XRD) systems, facilities for ...

162

Full-field Transmission X-ray Microscopy | Stanford Synchrotron Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

BL6-2c / Transmission X-ray Microscopy BL6-2c / Transmission X-ray Microscopy Home Researchers Publications Science Highlights Department of Energy Office of Science Search form Search Search TXM Search Full-field Transmission X-ray Microscopy Capabilities Full-field TXM is an excellent method to examine nanoscale heterogeneties in many materials, including complex hierarchical systems such as catalysts, fuel cells and battery electrodes, and biological and environmental samples, at 30 nm resolution.The transmission X-ray microscope (TXM) on beam line 6-2c at SSRL is capable of 2D imaging and tomography, as well as spectroscopic imaging for 2D and 3D elemental mapping and chemical mapping over tens of microns (up to mm in 2D). The field of view (FOV) is 30 microns, but mosaic images can be collected to

163

Is sustainability science really a science?  

NLE Websites -- All DOE Office Websites (Extended Search)

Is sustainability science really a science? Is sustainability science really a science? The team's work shows that although sustainability science has been growing explosively...

164

Information Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Information Science Information Science1354608000000Information ScienceSome of these resources are LANL-only and will require Remote Access.NoQuestions? 667-5809library@lanl.gov...

165

Science Highlights  

NLE Websites -- All DOE Office Websites (Extended Search)

Science Highlights Print Science Highlights Featured scientific research based on publications resulting from work done at the ALS. Highlights are nominated by management and...

166

Science & Innovation  

NLE Websites -- All DOE Office Websites (Extended Search)

National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors. Faces of Science Science & Engineering Capabilities...

167

Science Organizations  

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Organizations Science Organizations National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place...

168

Science Requirements  

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Science Requirements About ESnet Overview ESnet Staff Governance Our Network Case Studies ESnet Strategic Plan ESnet Organizational Chart ESnet History Science Requirements Network...

169

Computer Science  

NLE Websites -- All DOE Office Websites (Extended Search)

in Physics, Mathematics, Computer Science, Quantitative Biology, Quantitative Finance and Statistics Cite Seer Department of Energy provided open access science research citations...

170

Science Education ProgramScience Education Program TEACH SCIENCE  

E-Print Network (OSTI)

Science Education ProgramScience Education Program TEACH SCIENCE IMPACT THE FUTURE #12;Science Education ProgramScience Education Program Why Teach Science? #12;Science Education Program SCIENCE, a middle school science teacher. He teaches several grades and covers many science topics, covering

de Lijser, Peter

171

Science | ORNL Neutron Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Neutron Science Neutron Science Neutron Scattering Science Neutrons are one of the fundamental particles that make up matter and have properties that make them ideal for certain types of research. In the universe, neutrons are abundant, making up more than half of all visible matter. Neutron scattering provides information about the positions, motions, and magnetic properties of solids. When a beam of neutrons is aimed at a sample, many neutrons will pass through the material. But some will interact directly with atomic nuclei and "bounce" away at an angle, like colliding balls in a game of pool. This behavior is called neutron diffraction, or neutron scattering. Using detectors, scientists can count scattered neutrons, measure their energies and the angles at which they scatter, and map their final position

172

Chemical Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Chemical Science Chemical Science Compton double ionization of helium in the region of the cross-section maximum B. Krässig, R.W. Dunford, D.S. Gemmell, S. Hasegawa, E.P. Kanter, H. Schmidt-Böcking, W. Schmitt, S.H. Southworth, Th. Weber, and L. Young Crystal structure analysis of microporous Na16Nb12.8Ti3.2O44.8(OH)3.2l8H2O and Na/Nb/Zr/O/H2O phases A. Tripathi, J. Parise, M. Nyman, T.M. Nenoff, and W. Harrison Double K-photoionization of heavy atoms R.W. Dunford, D.S. Gemmell, E.P. Kanter, B. Krässig, and S.H. Southworth Forward-backward asymmetries of atomic photoelectrons S.H. Southworth, B. Krässig, E.P. Kanter, J.C. Bilheux, R.W. Dunford, D.S. Gemmell, S. Hasegawa, and L. Young In situreduction of various iron oxides to form high-surface-area Fe-metal catalysts as studied by high-resolution powder diffraction

173

Aberration-Coreected Electron Microscopy at Brookhaven National Laboratory  

Science Conference Proceedings (OSTI)

The last decade witnessed the rapid development and implementation of aberration correction in electron optics, realizing a more-than-70-year-old dream of aberration-free electron microscopy with a spatial resolution below one angstrom [1-9]. With sophisticated aberration correctors, modern electron microscopes now can reveal local structural information unavailable with neutrons and x-rays, such as the local arrangement of atoms, order/disorder, electronic inhomogeneity, bonding states, spin configuration, quantum confinement, and symmetry breaking [10-17]. Aberration correction through multipole-based correctors, as well as the associated improved stability in accelerating voltage, lens supplies, and goniometers in electron microscopes now enables medium-voltage (200-300kV) microscopes to achieve image resolution at or below 0.1nm. Aberration correction not only improves the instrument's spatial resolution but, equally importantly, allows larger objective lens pole-piece gaps to be employed thus realizing the potential of the instrument as a nanoscale property-measurement tool. That is, while retaining high spatial resolution, we can use various sample stages to observe the materials response under various temperature, electric- and magnetic- fields, and atmospheric environments. Such capabilities afford tremendous opportunities to tackle challenging science and technology issues in physics, chemistry, materials science, and biology. The research goal of the electron microscopy group at the Dept. of Condensed Matter Physics and Materials Science and the Center for Functional Nanomaterials, as well as the Institute for Advanced Electron Microscopy, Brookhaven National Laboratory (BNL), is to elucidate the microscopic origin of the physical- and chemical-behavior of materials, and the role of individual, or groups of atoms, especially in their native functional environments. We plan to accomplish this by developing and implementing various quantitative electron microscopy techniques in strongly correlated electron systems and nanostructured materials. As a first step, with the support of Materials Science Division, Office of Basic Energy Science, US Department of Energy, and the New York State Office of Science, Technology, and Academic Research, recently we acquired three aberration-corrected electron microscopes from the three major microscope manufacturers, i.e., JEOL, Hitachi, and FEI. The Hitachi HD2700C is equipped with a probe corrector, the FEI Titan 80-300 has an imaging corrector, while the JEOL2200MCO has both. All the correctors are of the dual-hexapole type, designed and manufactured by CEOS GmbH based on the design due to Rose and Haider [3, 18]. All these three are one-of-a-kind in the US, designed for specialized capabilities in characterizing nanoscale structure. In this chapter, we review the performance of these state-of-the art instruments and the new challenges associated with the improved spatial resolution, including the environment requirements of the laboratory that hosts these instruments. Although each instrument we describe here has its own strengths and drawbacks, it is not our intention to rank them in terms of their performance, especially their spatial resolution in imaging.

Zhu,Y.; Wall, J.

2008-04-01T23:59:59.000Z

174

NEWTON's Material Science Archive  

NLE Websites -- All DOE Office Websites (Extended Search)

Materials Science Archive: Materials Science Archive: Loading Most Recent Materials Science Questions: Hydrogen Compounds and Heat Conduction Weaving Carbon Nanotubes Metal as Electrical Conductor, Not Thermal Steel Changes with Age PETE, Ultraviolet Light, Benefits Strength of Yarn by Spinning Each Substance Unique Density Alloy versus Constituent Density Knowing When Material is Melted Crystalline Metal Versus Metallic Glass and Conduction Super Glue, Surgery, and Skin Silica Gel Teflon Non-Stick Property Salt Crystal Formation Lubricating Rubber Bands and Elasticity Materials for Venus Probe Crystalline Solids and Lowest Energy Sodium Polycarbonate and Salt Water Early Adhesives Surface Energy and Temperature Separating Polypropylene, Polyester, and Nylon Factors Effecting Polymer Flexibility

175

NCEM National Center for Electron Microscopy: Microscopes and Facilities:  

NLE Websites -- All DOE Office Websites (Extended Search)

Specimen Preparation Specimen Preparation Preparation of samples with large transparent areas and flat surfaces is a key element of electron microscopy. In particular, the interpretation of lattice or holographic images is often limited by the sample's geometry and surface roughness. These parameters are largely determined by a particular sample preparation procedure. The increasing demand for microscopes with a spatial resolution of better than 1Ă… increases the need for improved sample preparation techniques. A substantial effort at NCEM is devoted to the development of reliable and specialized thinning techniques. Current programs explore the application of chemicals to shape the surfaces of thin films, the use of nanospheres for observation of small particles, and the

176

Building Science  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Science Science The "Enclosure" Joseph Lstiburek, Ph.D., P.Eng, ASHRAE Fellow www.buildingscience.com * Control heat flow * Control airflow * Control water vapor flow * Control rain * Control ground water * Control light and solar radiation * Control noise and vibrations * Control contaminants, environmental hazards and odors * Control insects, rodents and vermin * Control fire * Provide strength and rigidity * Be durable * Be aesthetically pleasing * Be economical Building Science Corporation Joseph Lstiburek 2 Water Control Layer Air Control Layer Vapor Control Layer Thermal Control Layer Building Science Corporation Joseph Lstiburek 3 Building Science Corporation Joseph Lstiburek 4 Building Science Corporation Joseph Lstiburek 5 Building Science Corporation

177

Advanced Photon Source | Combining Scanning Probe Microscopy...  

NLE Websites -- All DOE Office Websites (Extended Search)

30.2013 Alan Alda Center for Communicating Science workshop APS APS On September 26-28, 2013, Alan Alda, The Kavli Foundation, and the Alan Alda Center for Communicating Science...

178

Compressed sensing for fast electron microscopy  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2014 TMS Annual Meeting & Exhibition. Symposium , Data Analytics for Materials Science and Manufacturing. Presentation Title ...

179

Faculty of Science Computer Science  

E-Print Network (OSTI)

Faculty of Science Computer Science Computer software engineering, network and system analysis.uwindsor.ca/computerscience The University of Windsor offers a variety of computer science programs to prepare students for a career in the technology industry or in research and academia. A computer science degree provides an in-depth understanding

180

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

consist of over twelve sites. The science objective is ground truth for global satellite retrieval and accurate vertical distribution information in combination with surface...

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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181

IN TECHNOLOGY /MEDIA /POLITICS SCIENCE /BUSINESS  

E-Print Network (OSTI)

MICROSCOPY VISUALISATIONS RENDERED BY JURGEN ZIEWE S C I E N C E 300 NANOMETRES SCALE 440 VANADIUM PENTOXIDE that these tiny pieces of carbon help loosen crystallised fat and dirt from surfaces. This increases

Herz, Laura M.

182

Science Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

Argonne Argonne Science Project Ideas! Our Science Project section provides you with sample classroom projects and experiments, online aids for learning about science, as well as ideas for Science Fair Projects. Please select any project below to continue. Also, if you have an idea for a great project or experiment that we could share, please click our Ideas page. We would love to hear from you! Science Fair Ideas Science Fair Ideas! The best ideas for science projects are learning about and investigating something in science that interests you. NEWTON has a list of Science Fair linkd that can help you find the right topic. Toothpick Bridge Web Sites Toothpick Bridge Sites! Building a toothpick bridge is a great class project for physics and engineering students. Here are some sites that we recommend to get you started!

183

Scanning Transmission Electron Microscopy Investigations of Complex...  

NLE Websites -- All DOE Office Websites (Extended Search)

Scanning Transmission Electron Microscopy Investigations of Complex Oxides Monday, May 23, 2011 - 3:30pm SSRL Conference room 137-322 Professor Tom Vogt, NanoCenter & Department of...

184

Advanced Photon Source | Combining Scanning Probe Microscopy...  

NLE Websites -- All DOE Office Websites (Extended Search)

Publications | SXSPM Related Book Chapters V. Rose, J.W. Freeland, S.K. Streiffer, "New Capabilities at the Interface of X-rays and Scanning Tunneling Microscopy", in Scanning...

185

Life Sciences Division Home  

NLE Websites -- All DOE Office Websites (Extended Search)

The vision of the Life Sciences Division is to advance basic knowledge, and The vision of the Life Sciences Division is to advance basic knowledge, and the health of humans and the biosphere, by elucidating the 4-Dimensional dynamics of complex biological systems -- ranging from molecules to microbes to humans. Research Highlights New Imaging Technique Identified to Monitor Progression of Heart Failure In a recent publication of Journal of Nuclear Medicine, a team of scientists from Berkeley Lab, the University of Utah, and UC San Francisco describe a new imaging technique used to monitor the progression of heart failure. More » Unlocking the Secrets of Proteins Cryoelectron microscopy is helping to unlock the secrets of proteins as never before, thanks to technology developed for one of the world's most powerful electron microscopes, TEAM, at Berkeley Lab's National Center for

186

Materials Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Materials Science Materials Science Materials Science1354608000000Materials ScienceSome of these resources are LANL-only and will require Remote Access./No/Questions? 667-5809library@lanl.gov Materials Science Some of these resources are LANL-only and will require Remote Access. Key Resources Data Sources Reference Organizations Journals Key Resources CINDAS Materials Property Databases video icon Thermophysical Properties of Matter Database (TPMD) Aerospace Structural Metals Database (ASMD) Damage Tolerant Design Handbook (DTDH) Microelectronics Packaging Materials Database (MPMD) Structural Alloys Handbook (SAH) Proquest Technology Collection Includes the Materials Science collection MRS Online Proceedings Library Papers presented at meetings of the Materials Research Society Data Sources

187

ARM - NSA Science  

NLE Websites -- All DOE Office Websites (Extended Search)

AlaskaNSA Science AlaskaNSA Science NSA Related Links Facilities and Instruments Barrow Atqasuk ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Images Information for Guest Scientists Contacts NSA Science Scientific objectives for the NSA/AAO site are provided below: Provide the comprehensive data sets necessary to develop and test continually improved algorithms for GCMs to describe radiative transfer and cloud processes at high latitudes; Specifically focus on development of algorithms to describe: radiative transfer within both the clear and cloudy atmosphere, especially at low temperatures; physical and optical behavior of water (ice) and land surfaces, both bare and snow-covered, especially during transitions from winter to summer and back; physical and optical behavior of ice and mixed phase clouds.

188

User Science Images  

NLE Websites -- All DOE Office Websites (Extended Search)

User Science Images User Science Images User Science Images Sort by: Default | Name | Date (low-high) | Date (high-low) | Category NIMROD-1.png FES: NIMROD Simulation February 18, 2010 | Author(s): Dr. Charlson C. Kim (University of Washington) | Category: Fusion Energy | URL: https://nimrodteam.org/ Download Image: NIMROD-1.png | png | 1.5 MB Trajectory of an energetic ion in a Field Reverse Configuration (FRC) magnetic field. Magnetic separatrix denoted by green surface. Spheres are colored by azimuthal velocity. Image courtesy of Charlson Kim, University of Washington; NERSC repos m487, mp21, m1552 Scheibe.png BER: Pore-Scale Fluid Flow for Subsurface Reactive Transport January 1, 2008 | Author(s): Timothy D. Scheibe, PNNL | Category: Environmental Science | URL: http://http://subsurface.pnl.gov/

189

Advanced Photon Source | Combining Scanning Probe Microscopy and  

NLE Websites -- All DOE Office Websites (Extended Search)

01.2013 01.2013 Nanoscience Seminar presented at Tokyo University On November 1, 2013, Volker Rose was invited to present the Nanoscience Seminar at the Institute of Solid State Physics (ISSP) of the University of Tokyo. In his seminar he discussed the physical principles of Synchrotron X-ray Scanning Tunneling Microscopy (SXSTM) as well as the recent progress made by his team at the Advanced Photon Source. He was invited by Prof. Yukio Hasegawa, who himself conducts SXSTM experiment at the Photon Factory in Tsukuba, Japan. The ISSP serves as the central laboratory of materials science in Japan equipped with state-of-art facilities. It was relocated to the new campus in Kashiwa of the University of Tokyo in 2000 after the 43 years of activities at the Roppongi campus in downtown Tokyo. Here ISSP is focusing

190

EMSL: Science  

NLE Websites -- All DOE Office Websites (Extended Search)

EMSL's Science and Science Themes EMSL's Science and Science Themes EMSL's unique and state-of-the-art capabilities along with staff expertise can help scientists gain a predictive understanding of the molecular-to-mesoscale processes in climate, biological, environmental and energy systems. These advancements are critical to development of sustainable solutions to the nation's energy and environmental challenges. Four Science Themes help EMSL define and direct the research investments and establish a portfolio of user projects to accelerate scientific innovation and discovery in the areas of environmental molecular science critical to DOE and the nation. EMSL's annual call for proposals solicits proposals on specific topics within these Science Themes. Over the next 10 years, EMSL will focus its science toward developing

191

Nuclear Sciences | More Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Chemistry Chemistry Advanced Materials Nuclear Forensics Climate & Environment Biology and Soft Matter Chemical and Engineering Materials Quantum Condensed Matter Computational Chemistry Nuclear Sciences More Science Home | Science & Discovery | More Science | Chemistry | Nuclear Sciences SHARE Nuclear Sciences In World War II's Manhattan Project, ORNL helped usher in the nuclear age. Today, laboratory scientists are leaders in using nuclear technologies and systems to improve human health; explore safer, more environmentally friendly power; and better understand the structure of matter. Thanks to its nuclear heritage, ORNL is a world leader in the production of isotopes for medical purposes and research. The lab's High Flux Isotope Reactor (HFIR) and Radiochemical Engineering Development Center (REDC)

192

Materials Science  

Science Conference Proceedings (OSTI)

Materials Science. Summary: Key metrologies/systems: In situ spectroscopic ellipsometry, linear and non-linear spectroscopies ...

2012-10-02T23:59:59.000Z

193

Biological Imaging by Soft X-Ray Diffraction Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Imaging by Soft X-Ray Biological Imaging by Soft X-Ray Diffraction Microscopy Biological Imaging by Soft X-Ray Diffraction Microscopy Print Wednesday, 30 November 2005 00:00 Electron and x-ray microscopes are a valuable tool for both the life and materials sciences, but they are limited in their ability to image with nanometer-scale resolution in three dimensions nonperiodic objects that are several microns in size. To fill this gap, the technique of coherent x-ray diffraction imaging now under development takes advantage of the penetrating power of x rays while simultaneously removing the limitations imposed by lens-based optical systems. Researchers from Stony Brook University, in collaboration with scientists at the ALS and Cornell University, have taken a large step in this direction by using a lensless x-ray diffraction microscope to image a freeze-dried yeast cell to better than 30-nm resolution. Images were made at several angular orientations of the cell.

194

Optimal Control of Free Boundary Problems with Surface ...  

Science Conference Proceedings (OSTI)

... Up, Optimal Control of Free Boundary Problems with Surface Tension Effects. Harbir Antil Department of Mathematical Sciences ...

2013-11-18T23:59:59.000Z

195

Advanced Photon Source | Combining Scanning Probe Microscopy...  

NLE Websites -- All DOE Office Websites (Extended Search)

Presentations UPCOMING PRESENTATIONS V. Rose, The Institute for Solid State Physics Nano Science Seminar (Invited Speaker) The University of Tokyo, Japan (October 31-November 2,...

196

ComputationalComputational ScienceScience  

E-Print Network (OSTI)

ComputationalComputational ScienceScience KenKen HawickHawick k.a.k.a.hawickhawick@massey.ac.nz@massey.ac.nz Massey UniversityMassey University #12;Computational Science / eScienceComputational Science / eScience Computational Science concerns the application of computer science to physics, mathematics, chemistry, biology

Hawick, Ken

197

Scanning probe microscopy in the superconductor industry  

SciTech Connect

High-temperature superconductivity and scanning probe microscopy (SPM) have much in common. Both revolutionized their scientific fields and earned Nobel prizes for the original researchers. Both represent small-scale table-top research. Finally, both have emerged from research laboratories into growing industries. Applications of scanning probe microscopy to the superconductor industry range from the straightforward to the exotic. The superior three-dimensional resolution of scanning probe microscopes makes them ideal for routine topographic imaging and profilometry of substrates and thin films. On the other hand, the more esoteric applications of SPM include spectroscopic investigations of various electromagnetic properties of superconductors above and below the critical temperature.

Howland, R.S.; Kirk, M.D. (Park Scientific Instruments (US))

1991-01-01T23:59:59.000Z

198

Investigating science teachers' beliefs about science and science teaching.  

E-Print Network (OSTI)

??The purposes of this quantitative, descriptive study were to investigate Saudi science teachers' beliefs about science and science teaching, and to determine how do Saudi… (more)

AL-Abdulkareem, Saleh A. M., 1965-

2004-01-01T23:59:59.000Z

199

Electron Microscopy (EM, TEM, SEM, STEM) Information at ...  

Science Conference Proceedings (OSTI)

... Electron holography. Electron Microscopy of Carbon Nanotube Composites. Environmental Scanning Electron Microscope. ...

2010-10-05T23:59:59.000Z

200

Earth and Atmospheric Sciences | More Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Forensics Climate & Environment Sensors and Measurements Chemical & Engineering Materials Computational Earth Science Systems Modeling Geographic Information Science and Technology Materials Science and Engineering Mathematics Physics More Science Home | Science & Discovery | More Science | Earth and Atmospheric Sciences SHARE Earth and Atmospheric Sciences At ORNL, we combine our capabilities in atmospheric science, computational science, and biological and environmental systems science to focus in the cross-disciplinary field of climate change science. We use computer models to improve climate change predications and to measure the impact of global warming on the cycling of chemicals in earth systems. Our Climate Change Science Institute uses models to explore connections among atmosphere,

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Photonics.com Spectra Home Technology World Innovative Products Business World Presstime Bulletin Article Abstracts Microscopy Focus | June 2007  

E-Print Network (OSTI)

-Optical Science and Email Article Printer Friendly Save Article Enter search term Entire SiteExplore Photonics directory in the industry. Subscribe to the Print Directory | Update Your Listing Enter search term microscopy offers the highest resolution possible for this search, but the technique has difficulty imaging

Rogers, John A.

202

Science Cinema  

NLE Websites -- All DOE Office Websites (Extended Search)

Cinema Science Experiments and Demonstrations Frostbite Theater - A collection of short, fun videos that you can use to explore liquid nitrogen, radioactivity, electricity and even...

203

Science Highlights  

NLE Websites -- All DOE Office Websites (Extended Search)

Introduction Science Highlights Operations Events Abstracts Publications Credits Cover images legend Disclaimer National Synchrotron Light Source Activity Report For the period...

204

Energy Science  

NLE Websites -- All DOE Office Websites (Extended Search)

sources of tomorrow-are the scientific tools of choice for exploring the electronic and atomic structure of matter. As such these photon-science facilities are uniquely...

205

ENVIRONMENTAL SCIENCE AND  

E-Print Network (OSTI)

ENVIRONMENTAL SCIENCE AND MANAGEMENT www.esr.pdx.edu Undergraduate Program: Environmental Science an emphasis on natural sciences and mathematics (Environmental Science) or emphasis on policy, geography and social sciences (Environmental Studies). Undergraduate Degrees Offered: Environmental Science Bachelor

206

Atomic site-specific theory of H on {gamma}U surface  

DOE Green Energy (OSTI)

This effort is a fundamental study of local chemical, electronic and physical behavior of metal and metal oxides as exposed to corrosive gases such as hydrogen and water vapor. The study benefits from state-of-art surface science experimental tools, such as scanning tunneling and atomic force microscopies (STM/AFM), photoelectron emission microscopy (PEEM), temperature programmed desorption (TPD) and modulated molecular beam mass spectrometry (MMBMS), to provide detailed knowledge of how, why and where a chemical reaction initiates and subsequently progresses with time, and theoretical/computational methods at the atomistic scale. The theoretical/computational component reported here consists of the first-principles calculation of the electronic structure of U surfaces exposed to H attack The calculations were designed to shed light on the energetic of various configurations of H interstitial impurities on the surface or in the substrate of U bcc metal. Predictions as to the preference of H to occupy surface or substrate interstitial positions can be made on the basis of the configuration with the lowest ground-state total energy.

Gonis, A.

1998-01-16T23:59:59.000Z

207

Life Sciences Portal  

Science Conference Proceedings (OSTI)

NIST Home > Life Sciences Portal. Life Sciences Portal. Programs ... more. >> see all Life Sciences programs and projects ... ...

2012-12-18T23:59:59.000Z

208

Fusion Nuclear Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Systems Modeling, Simulation & Validation Nuclear Systems Technology Reactor Technology Nuclear Science Home | Science & Discovery | Nuclear Science | Research...

209

Applied Science/Techniques  

NLE Websites -- All DOE Office Websites (Extended Search)

Applied Science/Techniques Applied Science/Techniques Applied Science/Techniques Print The ALS is an excellent incubator of new scientific techniques and instrumentation. Many of the technical advances that make the ALS a world-class soft x-ray facility are developed at the ALS itself. The optical components in use at the ALS-mirrors and lenses optimized for x-ray wavelengths-require incredibly high-precision surfaces and patterns (often formed through extreme ultraviolet lithography at the ALS) and must undergo rigorous calibration and testing provided by beamlines and equipment from the ALS's Optical Metrology Lab and Berkeley Lab's Center for X-Ray Optics. New and/or continuously improved experimental techniques are also a crucial element of a thriving scientific facility. At the ALS, examples of such "technique" highlights include developments in lensless imaging, soft x-ray tomography, high-throughput protein analysis, and high-power coherent terahertz radiation.

210

Fusion Science at NERSC  

NLE Websites -- All DOE Office Websites (Extended Search)

Rotating Plasma Finding is Key for ITER Heavy-Ion Fusion Science (HIFS) Math & Computer Science Nuclear Science Science Highlights HPC Requirements Reviews NERSC HPC Achievement...

211

BER Science Network Requirements  

E-Print Network (OSTI)

Department of Energy, Office of Science, Office of Advancedthe Directors of the Office of Science, Office of AdvancedResearch, DOE Office of Science Energy Sciences Network

Dart, Eli

2011-01-01T23:59:59.000Z

212

ASCR Science Network Requirements  

E-Print Network (OSTI)

Computing Research, DOE Office of Science Energy SciencesDepartment of Energy, Office of Science, Office of Advancedthe Directors of the Office of Science, Office of Advanced

Dart, Eli

2010-01-01T23:59:59.000Z

213

Science Accelerator : User Account  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Office of Science Office of Scientific and Technical Information Website PoliciesImportant Links Science Accelerator science.gov WorldWideScience.org Deep Web Technologies...

214

NEWTON's Computer Science Videos  

NLE Websites -- All DOE Office Websites (Extended Search)

Computer Science Videos Do you have a great computer science video? Please click our Ideas page. Featured Videos: Computer Science Videos from Purdue Computer Science Videos from...

215

Life sciences  

DOE Green Energy (OSTI)

This document is the 1989--1990 Annual Report for the Life Sciences Divisions of the University of California/Lawrence Berkeley Laboratory. Specific progress reports are included for the Cell and Molecular Biology Division, the Research Medicine and Radiation Biophysics Division (including the Advanced Light Source Life Sciences Center), and the Chemical Biodynamics Division. 450 refs., 46 figs. (MHB)

Day, L. (ed.)

1991-04-01T23:59:59.000Z

216

Contacts | ORNL Neutron Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Science Points of Contact Science Points of Contact Name Research Area Doug Abernathy Wide Angular-Range Chopper Spectrometer (ARCS). Atomic-scale dynamics at thermal and epithermal energies Ke An Engineering Materials Diffractometer (VULCAN). Residual stress, deformation mechanism of materials, phase transitions/transformation, and in situ/operando neutron diffraction in material systems (e.g., working batteries). John Ankner Liquids Reflectometer (LR). Density profiles normal to the surface at liquid surfaces and liquid interfaces Bryan Chakoumakos Nuclear and magnetic crystal structure systematics and structure-property relationships among inorganic materials, powder and single-crystal neutron and x-ray diffraction methods Leighton Coates Macromolecular Neutron Diffractometer (MaNDi). Protein crystallography, biological structure and function

217

NCEM National Center for Electron Microscopy: Microscopes and Facilities:  

NLE Websites -- All DOE Office Websites (Extended Search)

SPLEEM SPLEEM Publications Imaging Spin Reorientation Transitions in Consecutive Atomic Co layers, Farid El Gabaly, Silvia Gallego, M. Carmen Munoz, Laszlo Szunyogh, Peter Weinberger, Kevin F. McCarty, Christof Klein, Andreas K. Schmid, Juan de la Figuera, submitted Direct imaging of spin-reorientation transitions in ultra-thin Ni films by spin-polarized low-energy electron microscopy, C. Klein, A. K. Schmid, R. Ramchal, and M. Farle, submitted Controlling the kinetic order of spin-reorientation transitions in Ni/Cu(100) films by tuning the substrate step-structure, C. Klein, R. Ramchal, A.K. Schmid, M. Farle, submitted Self-organization and magnetic domain microstructure of Fe nanowire arrays, N. Rougemaille and A.K. Schmid, submitted Self-Assembled Nanofold Network Formation on Layered Crystal Surfaces

218

Advanced Photon Source | Combining Scanning Probe Microscopy and  

NLE Websites -- All DOE Office Websites (Extended Search)

APS APS SXSPM News Researchers from NSLS-II visit SXSPM team at Argonne (November 27, 2013) Cummings presents invited talk at magnetism meeting (November 11, 2013) Invited talk at ACSIN-12 & ICSPM21 in Japan (November 11, 2013) Nanoscience Seminar presented at Tokyo University (November 01, 2013) Scientists study old photos for new solutions to corrosion (October 21, 2013) More News Featured Image Recent Publications Kangkang Wang, Daniel Rosenmann, Martin Holt, Robert Winarski, Saw-Wai Hla, and Volker Rose, "An easy-to-implement filter for separating photo-excited signals from topography in scanning tunneling microscopy", Rev. Sci. Instrum. 84, 063704 (2013). More SXSPM Publications Upcoming Presentations V. Rose, 41st Conference on the Physics and Chemistry of Surfaces and Interfaces (PCSI-41) (Invited Speaker)

219

Calibration of fluorescence resonance energy transfer in microscopy  

DOE Patents (OSTI)

Imaging hardware, software, calibrants, and methods are provided to visualize and quantitate the amount of Fluorescence Resonance Energy Transfer (FRET) occurring between donor and acceptor molecules in epifluorescence microscopy. The MicroFRET system compensates for overlap among donor, acceptor, and FRET spectra using well characterized fluorescent beads as standards in conjunction with radiometrically calibrated image processing techniques. The MicroFRET system also provides precisely machined epifluorescence cubes to maintain proper image registration as the sample is illuminated at the donor and acceptor excitation wavelengths. Algorithms are described that pseudocolor the image to display pixels exhibiting radiometrically-corrected fluorescence emission from the donor (blue), the acceptor (green) and FRET (red). The method is demonstrated on samples exhibiting FRET between genetically engineered derivatives of the Green Fluorescent Protein (GFP) bound to the surface of Ni chelating beads by histidine-tags.

Youvan, Douglas C. (San Jose, CA); Silva, Christopher M. (Sunnyvale, CA); Bylina, Edward J. (San Jose, CA); Coleman, William J. (Moutain View, CA); Dilworth, Michael R. (Santa Cruz, CA); Yang, Mary M. (San Jose, CA)

2002-09-24T23:59:59.000Z

220

Nuclear Science at NERSC  

NLE Websites -- All DOE Office Websites (Extended Search)

Accelerator Science Accelerator Science Astrophysics Biological Sciences Chemistry & Materials Science Climate & Earth Science Energy Science Engineering Science Environmental Science Fusion Science Math & Computer Science Nuclear Science Science Highlights NERSC Citations HPC Requirements Reviews Home » Science at NERSC » Nuclear Science Nuclear Science Experimental and theoretical nuclear research carried out at NERSC is driven by the quest for improving our understanding of the building blocks of matter. This includes discovering the origins of nuclei and identifying the forces that transform matter. Specific topics include: Nuclear astrophysics and the synthesis of nuclei in stars and elsewhere in the cosmos; Nuclear forces and quantum chromodynamics (QCD), the quantum field

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Chemistry and Materials Science progress report, FY 1994. Revision 2  

Science Conference Proceedings (OSTI)

Thrust areas of the weapons-supporting research include surface science, fundamentals of the physics and processing of metals, energetic materials, etc. The laboratory directed R and D include director`s initiatives, individual projects, and transactinium science studies.

NONE

1996-01-01T23:59:59.000Z

222

carleton.ca/science FACULTY OF SCIENCE  

E-Print Network (OSTI)

carleton.ca/science FACULTY OF SCIENCE ANYTHING BUT TEXTBOOK #12;Areas of study Bachelor of Computer Science* Algorithms Biomedical Computing Computer Game Development Computer and Internet Security Mathematics Computer Science and Mathematics Concentrations in Computing Theory and Numerical Methods

Carleton University

223

Bachelor of Science & Bachelor of Science (Technology)  

E-Print Network (OSTI)

Bachelor of Science & Bachelor of Science (Technology) SpecialiSationS Environmental Microbiology environment. This specialisation can be attached to the Environmental Sciences major. Environmental Modelling Sciences major. Land and Freshwater Environments This specialisation is for students interested

Waikato, University of

224

Probabilistic surfaces: point based primitives to show surface uncertainty  

Science Conference Proceedings (OSTI)

Efficient and informative visualization of surfaces with uncertainties is an important topic with many applications in science and engineering. Examples include environmental pollution borderline identification, identification of the limits of an oil ... Keywords: points as display primitives, uncertainty, visualizing surface uncertainty

Gevorg Grigoryan; Penny Rheingans

2002-10-01T23:59:59.000Z

225

REPORT OF THE SURFACE SCIENCE WORKSHOP  

E-Print Network (OSTI)

conservation, fossil, nuclear fission, geothermal and solarconservation, fossil, nuclear fission, geothermal and solarinteractions, scaling H 0 Nuclear FUBion Fission 10"* to 1 1

Somorjai, G.A.

2010-01-01T23:59:59.000Z

226

Surface Engineering: Science and Technology II  

Science Conference Proceedings (OSTI)

Ammonia, 189-198. Dimethylamine, 189, 190, 192-194. Methane, 189-192. Precursors, 189-198. Trichloroethylene, 189, 190, 194-198. Plasma Spray, 327, 328.

227

Surface Protection for Enhanced Materials Performance: Science ...  

Science Conference Proceedings (OSTI)

Thermal Barrier Coatings for Resistance Against Attack by Molten Silicate Deposits from CMAS Sand, Volcanic Ash, or Coal Fly Ash Ingested by Gas- Turbine ...

228

Surface Protection for Enhanced Materials Performance: Science ...  

Science Conference Proceedings (OSTI)

... Modeling Approach to Develop Protective Coatings for Fossil Energy Applications ... Doped Solid Oxide Fuel Cell Electrolytes Produced Via a Combination of ...

229

REPORT OF THE SURFACE SCIENCE WORKSHOP  

E-Print Network (OSTI)

Livermore Laboratory Fossil energy conversion Catalysis—mission include energy conservation, fossil, nuclear fusion,ERDA's mission include energy conservation, fossil, nuclear

Somorjai, G.A.

2010-01-01T23:59:59.000Z

230

REPORT OF THE SURFACE SCIENCE WORKSHOP  

E-Print Network (OSTI)

fossil fuels (coal, shale oil)]. The problems at the S A -2Coal Conventional Gasification Oil shale Tar sands Oil,

Somorjai, G.A.

2010-01-01T23:59:59.000Z

231

REPORT OF THE SURFACE SCIENCE WORKSHOP  

E-Print Network (OSTI)

environmental control, with solar and energy conservation (nuclear fusion, geothermal and solar energy technologies andmission in the field of solar energy (solar photovoltaics in

Somorjai, G.A.

2010-01-01T23:59:59.000Z

232

REPORT OF THE SURFACE SCIENCE WORKSHOP  

E-Print Network (OSTI)

of Standards J. Gait, Sandia Laboratories W. A. Goddard I IAmes Laboratory J . Houston, Sandia Laboratories L. Jenkins,Research Co. D. Maddox, Sandia Laboratories T. E. Hadey,

Somorjai, G.A.

2010-01-01T23:59:59.000Z

233

Spatially resolved quantitative mapping of thermomechanical properties and phase transition temperatures using scanning probe microscopy  

DOE Patents (OSTI)

An approach for the thermomechanical characterization of phase transitions in polymeric materials (polyethyleneterephthalate) by band excitation acoustic force microscopy is developed. This methodology allows the independent measurement of resonance frequency, Q factor, and oscillation amplitude of a tip-surface contact area as a function of tip temperature, from which the thermal evolution of tip-surface spring constant and mechanical dissipation can be extracted. A heating protocol maintained a constant tip-surface contact area and constant contact force, thereby allowing for reproducible measurements and quantitative extraction of material properties including temperature dependence of indentation-based elastic and loss moduli.

Jesse, Stephen; Kalinin, Sergei V; Nikiforov, Maxim P

2013-07-09T23:59:59.000Z

234

Security Science & Technology | Nuclear Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Security Treaty Verification Nuclear Systems Modeling, Simulation & Validation Nuclear Systems Technology Reactor Technology Nuclear Science Home | Science & Discovery |...

235

Argonne Chemical Sciences & Engineering - Nuclear & Environmental Processes  

NLE Websites -- All DOE Office Websites (Extended Search)

Reflection Phase-Contrast Microscopy (XRIM): Reflection Phase-Contrast Microscopy (XRIM): Observation of Subnanometre-High Surface Topography with X-ray Reflection Phase-Contrast Microscopy Schematic of an X-ray reflection interface microscope Schematic of an X-ray reflection interface microscope (XRIM), using Fresnel zone plate (FZP) optics to image an interface. XRIM image of an orthoclase surface XRIM image of an orthoclase (001) surface. The white box indicates a region with a 0.65 nm-high monomolecular step (seen as a dark line). The ability to image interfaces in complex environments is strongly limited. Scanned probe microscopies (e.g., atomic force microscopy) are widely used but require the use of a probe tip which can be invasive. X-ray-based techniques have mostly relied on laterally averaging approaches

236

Instrument Series: Microscopy Environmental Transmission Electron Microscope  

NLE Websites -- All DOE Office Websites (Extended Search)

Environmental Transmission Environmental Transmission Electron Microscope EMSL's environmental transmission electron microscope (ETEM) provides in situ capabilities that enable atomic-resolution imaging and spectroscopic studies of materials under dynamic operating conditions. In contrast to traditional operation of TEM under high vacuum, EMSL's ETEM uniquely allows imaging within high- temperature and gas environments-with a gas pressure up to 20 Torr. With a spherical aberration corrector for the objective lens, the ETEM captures atomic-level processes as they occur, enabling vital research across a range of scientific fields. Research Applications Chemical science and engineering - providing in situ observation of catalytic processes with atomic-level resolution Materials science and engineering - allowing

237

[Faculty of Science Information and Computing Sciences  

E-Print Network (OSTI)

of Science Information and Computing Sciences] 7 Regular functors Combinators for regular functors: data I r r #12;[Faculty of Science Information and Computing Sciences] 8 Converting between datatype[Faculty of Science Information and Computing Sciences] Generic programming with the multirec

Löh, Andres

238

Faculty of Science Computer Science Handbook  

E-Print Network (OSTI)

Faculty of Science Computer Science Handbook 2013 #12;Welcome to Computer Science Welcome from the Head of Department 2 What is Computer Science? 2 Careers in Computer Science 3 What can you do with a Computer Science degree? 4 Meet our students 5 Academic information Important dates 7 Admission

Sun, Jing

239

[Faculty of Science Information and Computing Sciences  

E-Print Network (OSTI)

Set Parser r = Input [r Ă? Input] #12;[Faculty of Science Information and Computing Sciences] 13) :: [ ] #12;[Faculty of Science Information and Computing Sciences] 13 Applicative interface fail : {r Parser r Parser r (p q) inp = p inp ++ q inp #12;[Faculty of Science Information and Computing Sciences

Löh, Andres

240

Materials Science Evaluation Portal  

Science Conference Proceedings (OSTI)

NIST Home > Materials Science Evaluation Portal. Materials Science Evaluation Portal. Subject Areas. Modeling; Nondestructive; ...

2013-08-08T23:59:59.000Z

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Bioanalytical Science Group  

Science Conference Proceedings (OSTI)

Bioanalytical Science Group. Welcome. We provide the measurement science, standards, technology, and data required ...

2013-02-08T23:59:59.000Z

242

Argonne TDC: Physical Sciences  

Emergency Response. Engineering. Environmental Research. Fuel Cells. Imaging Technology. Material Science. Nanotechnology. Physical Sciences. Sensor ...

243

Nuclear Science  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Science Science and Engineering Education Sourcebook 2013 American Nuclear Society US Department of Energy Nuclear Science & Engineering Education Sourcebook 2013 North American Edition American Nuclear Society Education, Training, and Workforce Division US Department of Energy Office of Nuclear Energy Editor and Founder John Gilligan Professor of Nuclear Engineering North Carolina State University Version 5.13 Welcome to the 2013 Edition of the Nuclear Science and Engineering Education (NS&EE) Sourcebook. We have evolved and improved! The core mission of the Sourcebook has not changed, however. Our purpose is to facilitate interaction among faculty, students, industry, and government agencies to accomplish nuclear research, teaching and service activities. Since 1986 we have compiled critical information on nuclear

244

Energy Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Science Energy Science Energy Science Print Our current fossil-fuel-based system is causing potentially catastrophic changes to our planet. The quest for renewable, nonpolluting sources of energy requires us to understand, predict, and ultimately control matter and energy at the electronic, atomic, and molecular levels. Light-source facilities-the synchrotrons of today and the next-generation light sources of tomorrow-are the scientific tools of choice for exploring the electronic and atomic structure of matter. As such these photon-science facilities are uniquely positioned to jump-start a global revolution in renewable and carbon-neutral energy technologies. To establish the scientific foundations for the kind of transformative breakthroughs needed to build a 21st-century energy economy, we must address fundamental questions involving matter and energy. Below is a sampling of such questions that can be addressed by light-source facilities:

245

Science Museum  

NLE Websites -- All DOE Office Websites (Extended Search)

lecture December 12, 2013 Last in year-long series of public talks at Bradbury Science Museum LOS ALAMOS, N.M., Dec. 12, 2013-The role Los Alamos National Laboratory plays...

246

Science Museum  

NLE Websites -- All DOE Office Websites (Extended Search)

- 1 - Nanotechnology and algae biofuels exhibits open July 26 at the Bradbury Science Museum July 22, 2013 LOS ALAMOS, N.M., July 22, 2013-Los Alamos National Laboratory's Bradbury...

247

Applied Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Science EXAFS and XANES of plutonium and uranium edges from titanate ceramics for fissile materials disposition J.A. Fortner, A.J. Kropf, R.J. Finch, M.C. Hash, S.B. Aase,...

248

ARM - Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Read about the 20 years of accomplishments (PDF, 696KB) from the ARM Program and user facility. Performance Metrics ASR Metrics 2009 2008 2007 2006 Science New C-band...

249

A New Characterization of the Land Surface Heterogeneity over Africa for Use in Land Surface Models  

Science Conference Proceedings (OSTI)

Information related to land surface is immensely important to global change science. For example, land surface changes can alter regional climate through its effects on fluxes of water, energy, and carbon. In the past decades, data sources and ...

Armel Thibaut Kaptué Tchuenté; Jean-Louis Roujean; Agnčs Bégué; Sietse O. Los; Aaron A. Boone; Jean-François Mahfouf; Dominique Carrer; Badiane Daouda

2011-12-01T23:59:59.000Z

250

BES Science Network Requirements  

E-Print Network (OSTI)

the Directors of the Office of Science, Office of AdvancedBasic Energy Sciences, DOE Office of Science Energy SciencesDepartment of Energy, Office of Science, Office of Advanced

Dart, Eli

2011-01-01T23:59:59.000Z

251

COMPUTER SCIENCE EECS Department  

E-Print Network (OSTI)

COMPUTER SCIENCE EECS Department The Electrical Engineering and Computer Science (EECS) Department at WSU offers undergraduate degrees in electrical engineering, computer engineering and computer science. The EECS Department offers master of science degrees in computer science, electrical engineering

252

Computer Science UNDERGRADUATE  

E-Print Network (OSTI)

447 Computer Science UNDERGRADUATE PROGRAMS The Department of Computer Science provides undergraduate instruction leading to the bachelor's degree in computer science. This program in computer science is accredited by the Computer Science Accreditation Board (CSAB), a specialized accrediting body recognized

Suzuki, Masatsugu

253

Quantitative imaging of living cells by deep ultraviolet microscopy  

E-Print Network (OSTI)

Developments in light microscopy over the past three centuries have opened new windows into cell structure and function, yet many questions remain unanswered by current imaging approaches. Deep ultraviolet microscopy ...

Zeskind, Benjamin J

2006-01-01T23:59:59.000Z

254

Public Safety and Security in Analytical Microscopy Group  

Science Conference Proceedings (OSTI)

Public Safety and Security in Analytical Microscopy Group. Summary: Reliable standards are needed to test, maintain, and ...

2012-10-02T23:59:59.000Z

255

Electron and X-Ray Microscopy: Structural Characterization of ...  

Science Conference Proceedings (OSTI)

Oct 28, 2009 ... Recent Advances in Structural Characterization of Materials: Electron and X-Ray Microscopy: Structural Characterization of Nanoscale ...

256

Surfaces of Intermetallics: Quasicrystals and Beyond  

Science Conference Proceedings (OSTI)

The goal of this work is to characterize surfaces of intermetallics, including quasicrystals. In this work, surface characterization is primarily focused on composition and structure using X-ray photoelectron spectroscopy (XPS) and scanning tunneling microscopy (STM) performed under ultrahigh vacuum (UHV) conditions.

Yuen, Chad [Ames Laboratory

2012-10-26T23:59:59.000Z

257

Neutron Science | More Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

of the 1994 Nobel Prize in Physics for this groundbreaking work. Today, the laboratory is home to two of the most powerful neutron science facilities in the world-the Spallation...

258

Comparison of Segmentation Algorithms For Fluorescence Microscopy Images of Cells  

E-Print Network (OSTI)

Comparison of Segmentation Algorithms For Fluorescence Microscopy Images of Cells Alden A. Dima,1 Mary C. Brady,1 Hai C. Tang,1 Anne L. Plant2 * Abstract The analysis of fluorescence microscopy fluorescence microscopy; k-means cluster; image segmentation; cell edge; bivariate simi- larity index NUMEROUS

Bernal, Javier

259

Argonne CNM: X-Ray Microscopy Capabilities  

NLE Websites -- All DOE Office Websites (Extended Search)

X-Ray Microscopy Facilities X-Ray Microscopy Facilities The Hard X-Ray Nanoprobe (HXN) facility provides scanning fluorescence, scanning diffraction, and full-field transmission and tomographic imaging capabilities with a spatial resolution of 30 nm over a spectral range of 6-12 keV. Modes of Operation Full-Field Transmission Imaging and Nanotomography X-ray transmission imaging uses both the absorption and phase shift of the X-ray beam by the sample as contrast mechanisms. Absorption contrast is used to map the sample density. Elemental constituents can be located by using differential edge contrast in this mode. Phase contrast can be highly sensitive to edges and interfaces even when the X-ray absorption is weak. These contrast mechanisms are exploited to image samples rapidly in full-field transmission mode under various environmental conditions, or combined with nanotomography methods to study the three-dimensional structure of complex and amorphous nanomaterials with the HXN.

260

Chemical vapor deposition sciences  

SciTech Connect

Chemical vapor deposition (CVD) is a widely used method for depositing thin films of a variety of materials. Applications of CVD range from the fabrication of microelectronic devices to the deposition of protective coatings. New CVD processes are increasingly complex, with stringent requirements that make it more difficult to commercialize them in a timely fashion. However, a clear understanding of the fundamental science underlying a CVD process, as expressed through computer models, can substantially shorten the time required for reactor and process development. Research scientists at Sandia use a wide range of experimental and theoretical techniques for investigating the science of CVD. Experimental tools include optical probes for gas-phase and surface processes, a range of surface analytic techniques, molecular beam methods for gas/surface kinetics, flow visualization techniques and state-of-the-art crystal growth reactors. The theoretical strategy uses a structured approach to describe the coupled gas-phase and gas-surface chemistry, fluid dynamics, heat and mass transfer of a CVD process. The software used to describe chemical reaction mechanisms is easily adapted to codes that model a variety of reactor geometries. Carefully chosen experiments provide critical information on the chemical species, gas temperatures and flows that are necessary for model development and validation. This brochure provides basic information on Sandia`s capabilities in the physical and chemical sciences of CVD and related materials processing technologies. It contains a brief description of the major scientific and technical capabilities of the CVD staff and facilities, and a brief discussion of the approach that the staff uses to advance the scientific understanding of CVD processes.

1992-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution  

NLE Websites -- All DOE Office Websites (Extended Search)

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Analytical tools that combine spatial resolution with elemental and chemical identification at the nanometer scale along with large penetration depth are indispensable for the life and physical sciences. The XM-1 soft x-ray microscope at the ALS produces images that not only reveal structures but can identify their chemical elements and measure magnetic and other properties as well. Now a new method for creating optical devices with nanoscale accuracy has allowed researchers in Berkeley Lab's Center for X-Ray Optics (CXRO), which built and operates the XM-1, to achieve an extraordinary resolution of better than 15 nm, with the promise of even higher resolution in the near future.

262

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution  

NLE Websites -- All DOE Office Websites (Extended Search)

New Zone Plate for Soft X-Ray New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Wednesday, 31 August 2005 00:00 Analytical tools that combine spatial resolution with elemental and chemical identification at the nanometer scale along with large penetration depth are indispensable for the life and physical sciences. The XM-1 soft x-ray microscope at the ALS produces images that not only reveal structures but can identify their chemical elements and measure magnetic and other properties as well. Now a new method for creating optical devices with nanoscale accuracy has allowed researchers in Berkeley Lab's Center for X-Ray Optics (CXRO), which built and operates the XM-1, to achieve an extraordinary resolution of better than 15 nm, with the promise of even higher resolution in the near future.

263

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution  

NLE Websites -- All DOE Office Websites (Extended Search)

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Analytical tools that combine spatial resolution with elemental and chemical identification at the nanometer scale along with large penetration depth are indispensable for the life and physical sciences. The XM-1 soft x-ray microscope at the ALS produces images that not only reveal structures but can identify their chemical elements and measure magnetic and other properties as well. Now a new method for creating optical devices with nanoscale accuracy has allowed researchers in Berkeley Lab's Center for X-Ray Optics (CXRO), which built and operates the XM-1, to achieve an extraordinary resolution of better than 15 nm, with the promise of even higher resolution in the near future.

264

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution  

NLE Websites -- All DOE Office Websites (Extended Search)

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Analytical tools that combine spatial resolution with elemental and chemical identification at the nanometer scale along with large penetration depth are indispensable for the life and physical sciences. The XM-1 soft x-ray microscope at the ALS produces images that not only reveal structures but can identify their chemical elements and measure magnetic and other properties as well. Now a new method for creating optical devices with nanoscale accuracy has allowed researchers in Berkeley Lab's Center for X-Ray Optics (CXRO), which built and operates the XM-1, to achieve an extraordinary resolution of better than 15 nm, with the promise of even higher resolution in the near future.

265

SCIENCE Program  

NLE Websites -- All DOE Office Websites (Extended Search)

SCIENCE Program SCIENCE Program early science program Early at the Argonne Leadership Computing Facility CONTACT  Argonne Leadership Computing Facility | www.alcf.anl.gov | (877) 737-8615 Climate-Weather Modeling Studies Using a Prototype Global Cloud-System Resolving Model PI: Venkatramani Balaji Geophysical Fluid Dynamics Laboratory Award: 150 Million Hours Materials Design and Discovery: Catalysis and Energy Storage PI: Larry Curtiss Argonne National Laboratory Award: 50 Million Hours Direct Numerical Simulation of Autoignition in a Jet in a Cross-Flow PI: Christos Frouzakis Swiss Federal Institute of Technology Award: 150 Million Hours High-Accuracy Predictions of the Bulk Properties of Water PI: Mark Gordon Iowa State University Award: 150 Million Hours Cosmic Structure Probes

266

In-situ spectro-microscopy on organic films: Mn-Phthalocyanine on Ag(100)  

SciTech Connect

Metal phthalocyanines are attracting significant attention, owing to their potential for applications in chemical sensors, solar cells and organic magnets. As the electronic properties of molecular films are determined by their crystallinity and molecular packing, the optimization of film quality is important for improving the performance of organic devices. Here, we present the results of in situ low-energy electron microscopy / photoemission electron microscopy (LEEM/PEEM) studies of incorporation-limited growth [1] of manganese-phthalocyanine (MnPc) on Ag(100) surfaces. MnPc thin films were grown on both, bulk Ag(100) surface and thin Ag(100)/Fe(100) films, where substrate spin-polarized electronic states can be modified through tuning the thickness of the Ag film [2]. We also discuss the electronic structure and magnetic ordering in MnPc thin films, investigated by angle- and spin-resolved photoemission spectroscopy.

Al-Mahboob A.; Vescovo, E.; Sadowski, J.T.

2013-08-18T23:59:59.000Z

267

Materials Science & Engineering | More Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Advanced Materials Clean Energy Materials Theory and Simulation Neutron Science Nuclear Forensics Nuclear Science Supercomputing Theory, Modeling and Simulation Mathematics Physics More Science Home | Science & Discovery | More Science | Materials Science and Engineering SHARE Materials Science and Engineering ORNL's core capability in applied materials science and engineering directly supports missions in clean energy, national security, and industrial competitiveness. A key strength of ORNL's materials science program is the close coupling of basic and applied R&D. Programs building on this core capability are focused on (1) innovations and improvements in materials synthesis, processing, and design; (2) determination and manipulation of critical structure-property relationships, and (3)

268

Transmission electron microscopy analysis of corroded metal waste forms.  

SciTech Connect

This report documents the results of analyses with transmission electron microscopy (TEM) combined with energy dispersive X-ray spectroscopy (EDS) and selected area electron diffraction (ED) of samples of metallic waste form (MWF) materials that had been subjected to various corrosion tests. The objective of the TEM analyses was to characterize the composition and microstructure of surface alteration products which, when combined with other test results, can be used to determine the matrix corrosion mechanism. The examination of test samples generated over several years has resulted in refinements to the TEM sample preparation methods developed to preserve the orientation of surface alteration layers and the underlying base metal. The preservation of microstructural spatial relationships provides valuable insight for determining the matrix corrosion mechanism and for developing models to calculate radionuclide release in repository performance models. The TEM results presented in this report show that oxide layers are formed over the exposed steel and intermetallic phases of the MWF during corrosion in aqueous solutions and humid air at elevated temperatures. An amorphous non-stoichiometric ZrO{sub 2} layer forms at the exposed surfaces of the intermetallic phases, and several nonstoichiometric Fe-O layers form over the steel phases in the MWF. These oxide layers adhere strongly to the underlying metal, and may be overlain by one or more crystalline Fe-O phases that probably precipitated from solution. The layer compositions are consistent with a corrosion mechanism of oxidative dissolution of the steel and intermetallic phases. The layers formed on the steel and intermetallic phases form a continuous layer over the exposed waste form, although vertical splits in the layer and corrosion in pits and crevices were seen in some samples. Additional tests and analyses are needed to verify that these layers passivate the underlying metals and if passivation can break down as the MWF corrodes. The importance of localized corrosion should also be determined.

Dietz, N. L.

2005-04-15T23:59:59.000Z

269

NCEM National Center for Electron Microscopy: SPLEEM  

NLE Websites -- All DOE Office Websites (Extended Search)

SPLEEM The Spin-Polarized Low-Energy Electron Microscope is a unique low-voltage electron microscope for the study of surfaces and interfaces. The instrument is very sensitive to...

270

Applied Science/Techniques  

NLE Websites -- All DOE Office Websites (Extended Search)

Applied Science/Techniques Print Applied Science/Techniques Print The ALS is an excellent incubator of new scientific techniques and instrumentation. Many of the technical advances that make the ALS a world-class soft x-ray facility are developed at the ALS itself. The optical components in use at the ALS-mirrors and lenses optimized for x-ray wavelengths-require incredibly high-precision surfaces and patterns (often formed through extreme ultraviolet lithography at the ALS) and must undergo rigorous calibration and testing provided by beamlines and equipment from the ALS's Optical Metrology Lab and Berkeley Lab's Center for X-Ray Optics. New and/or continuously improved experimental techniques are also a crucial element of a thriving scientific facility. At the ALS, examples of such "technique" highlights include developments in lensless imaging, soft x-ray tomography, high-throughput protein analysis, and high-power coherent terahertz radiation.

271

History of Science 157 Sociology of Science  

E-Print Network (OSTI)

1 History of Science 157 Sociology of Science Fall 2009 Steven Shapin Science Center 469 Tuesdays to thinking about science, its historical development, its relations to society and other forms of culture: Science Center 451 Office hours: Mondays 8:30 -> 10.15, or by arrangement #12;2 E-mail: shapin

Shapin, Steven

272

www.ucd.ie/science UCD SCIENCE  

E-Print Network (OSTI)

* D N 200 SC IEN C E 4 N ew Pathw ays to Teaching M athem atics and Science www.ucd.ie/science UCD SCIENCE 2013 Discover. Experience. Choose. #12;2 www.ucd.ie/science Biochemistry & Molecular Biology 6 DN & Biomolecular Sciences Pharmacology 12 DN200 Neuroscience 11 DN200 Plant Biology 14 DN200 Physiology 13 DN200

273

NCEM National Center for Electron Microscopy: Staff  

NLE Websites -- All DOE Office Websites (Extended Search)

Staff Staff Scientific Technical / Admin. Postdoctoral and Visitors Uli Dahmen, Head Jane Cavlina / Administrator Abhay Gautam Christian Kisielowski John Turner Helmut Poppa Andrew Minor ChengYu Song Frances Allen Andreas Schmid Marissa Libbee Tamara Radetic Peter Ercius Karen Bustillo Haimei Zheng Jim Ciston Alpha N'Diaye Colin Ophus Gong Chen Burak Ozdol Velimir Radmilovic Sara Kiani Hua Guo Christian Liebscher Josh Kacher Chris Nelson Xiuguang Jin Qian Yu Mary Scott Search the LBNL directory services page for other LBNL staff. Scientific Staff Uli Dahmen udahmen@lbl.gov (510) 486-4627 Ulrich Dahmen is Director of the National Center for Electron Microscopy. His current research interests include embedded nanostructures and interfaces in materials. Embedded nanostructures. Size- and shape-dependence of structural phase

274

Contact ORNL Neutron Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Sciences Organization Charts Neutron Sciences Directorate Associate Laboratory Director for Neutron Sciences, Kelly Beierschmitt Biology and Soft Matter Division Director, Paul...

275

More Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Biology Chemistry Engineering Computer Science Earth and Atmospheric Sciences Materials Science and Engineering Mathematics Physics ORNL wins six R&D 100s R&D Magazine recognizes...

276

NERSC Science Gateways  

NLE Websites -- All DOE Office Websites (Extended Search)

Analytics & Visualization Science Gateways Demos Database services OpenDAP User Surveys NERSC Users Group User Announcements Help Home For Users Science Gateways Science...

277

ASCR Science Network Requirements  

E-Print Network (OSTI)

ASCR Science Network Requirements Office of AdvancedScientific Computing Research, DOE Office of ScienceEnergy Sciences Network Gaithersburg, MD — April 15 and 16,

Dart, Eli

2010-01-01T23:59:59.000Z

278

BER Science Network Requirements  

E-Print Network (OSTI)

of Energy, Office of Science, Office of Advanced Scientificthe Directors of the Office of Science, Office of Advanced5 Simulation Data Key Remote Science Drivers Instruments and

Dart, Eli

2011-01-01T23:59:59.000Z

279

NETL: Geological and Environmental Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Geological & Environmental Systems Geological & Environmental Systems Onsite Research Geological and Environmental Sciences Geological and Environmental Sciences (GES) is a focus area of the National Energy Technology Laboratory's Office of Research and Development (ORD). ORD's other focus areas are Energy System Dynamics, Computational and Basic Sciences, and Materials Science and Engineering. Scientists and engineers in ORD conduct research at NETL's advanced research facilities in Morgantown, WV; Pittsburgh, PA; and Albany, OR, and at various offsite locations. GES tackles the challenge of clean energy production from fossil energy sources by focusing on the behavior of natural systems at both the earth's surface and subsurface, including prediction, control, and monitoring of fluid flow in porous and fractured media. Efforts include

280

X-ray Dark Field Microscopy - Programmaster.org  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, International Conference on 3D Materials Science 2012. Symposium, International Conference on 3D Materials Science 2012.

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

EMSL: Science: Cross-Cutting Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Cross-Cutting Science Areas Cross-cutting science EMSL's integrated approach supports science that doesn't fit easily into single categories. Here we capture EMSL's areas of...

282

Loss tangent imaging: Theory and simulations of repulsive-mode tapping atomic force microscopy  

Science Conference Proceedings (OSTI)

An expression for loss tangent measurement of a surface in amplitude modulation atomic force microscopy is derived using only the cantilever phase and the normalized cantilever amplitude. This provides a direct measurement of substrate compositional information that only requires tuning of the cantilever resonance to provide quantitative information. Furthermore, the loss tangent expression incorporates both the lost and stored energy into one term that represents a fundamental interpretation of the phase signal in amplitude modulation imaging. Numerical solutions of a cantilever tip interacting with a simple Voigt modeled surface agree with the derived loss tangent to within a few percent.

Proksch, Roger [Asylum Research, Santa Barbara, California 93117 (United States); Yablon, Dalia G. [ExxonMobil Research and Engineering, Annandale, New Jersey (United States)

2012-02-13T23:59:59.000Z

283

Jefferson Lab Science Series - Adventures in Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Physics IQ Test Previous Video (Physics IQ Test) Science Series Video Archive Next Video (Polymers, Foams and Gels) Polymers, Foams and Gels Adventures in Science Professor Cynthia...

284

Understanding Materials Science History, Science, Applications - TMS  

Science Conference Proceedings (OSTI)

Feb 10, 2007 ... CITATION: Hummel, R.E. Understanding Materials Science History, Science, Applications, 2nd Edition, New York: Springer, 2004.

285

Scrambled Science Words  

NLE Websites -- All DOE Office Websites (Extended Search)

Scrambled Science Words Welcome to Scrambled Science Words Welcome to Scrambled Science Words The computer will pick a science word or term and then scramble its letters. Once you...

286

Anthropology Bachelor of Science  

E-Print Network (OSTI)

Anthropology Bachelor of Science 201213 Degree Map First Year Fall Winter Spring Notes ANTH 1031 4 Lab Science Elective 4 Lab Science Elective 4 Science Elective 4 Total Credits

Bertini, Robert L.

287

Science in the News  

Office of Scientific and Technical Information (OSTI)

Science in the News Now you can get science news from many U.S. science agencies via a new feed at Science.gov. From aftershock assessment of earthquakes to food recalls to U.S....

288

Science and Engineering Videos from Sandia National Laboratories Public Streaming Archive  

DOE Data Explorer (OSTI)

Sandia has made available dozens of videos in categories such as Energy, Health, Sciences and Engineering, and National Security. Most of these videos are less than 10 minutes in length, but a few are scientific presentations that run an hour or more in length. The latter include:

  • Mapping Ionic Currents and Electrochemical Reactivity on the Nanoscale: Electrochemical Strain Microscopy of Li-Ion and Oxygen-Ion Conductors, Sergei V. Kalinin, N. Balke, A. Kumar, S. Jesse (Center for Nanophase Materials Sciences, ORNL), Oct. 19, 2010.
  • PD2P: Fascinating Foam ű Diverse Applications, Unexpected Properties, and Characterization Challenges, Jamie M. Kropka (SNL), April 1, 2010.
  • Using Surface Science to Probe Critical Interfaces in Organic and Hybrid Systems, Michael T. Brumbach, March 25, 2010.
  • Color Detection Using Chromophore-Nanotube Hybrid Devices, Xinjian Zhou, Thomas Zifer, Bryan M. Wong, Karen L. Krafcik, Francois Leonard, and Andrew L. Vance, June 11, 2009.
  • Terascale Direct Numerical Simulations of Turbulent Combustion: Capabilities and Limits, Chun Sang Yoo, March 26, 2009.
  • Nanostructures for Li-ion Batteries, Parts 1, 2, and 3, Hitomo Mukaibo (University of Florida), June 4, 2010.

289

NIST Forensic Science Research  

Science Conference Proceedings (OSTI)

*. Bookmark and Share. NIST Forensic Science Research. NIST has conducted and supported forensic science research for many decades. ...

2013-09-23T23:59:59.000Z

290

NETL: Science Bowl Information  

NLE Websites -- All DOE Office Websites (Extended Search)

Educational Initiatives > Science Bowl Information Educational Initiatives Science Bowl Information Regional Sites Southwestern PA Regional Site West Virginia Regional Site...

291

NIST Forensic Science Newsroom  

Science Conference Proceedings (OSTI)

... three publication covers See our latest publications! NIST Forensic Science Newsroom. ... News Archive. NIST Forensic Science News newsletter. ...

2013-10-23T23:59:59.000Z

292

Biology | More Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Bioinformatics Nuclear Medicine Climate and Environment Systems Biology Computational Biology Chemistry Engineering Computer Science Earth and Atmospheric Sciences Materials...

293

Optical Surface Metrology and Nano-Structured Optics  

Science Conference Proceedings (OSTI)

... Ultra-precision surfaces and optical elements are essential to product ... Facilities/Tools Used: ... Science and Technology, a world-class facility for the ...

2013-04-19T23:59:59.000Z

294

Using Light to Clean Up the Environment: Photocatalysis, Surface...  

NLE Websites -- All DOE Office Websites (Extended Search)

Using Light to Clean Up the Environment: Photocatalysis, Surface Science, Nanotechnology and Novel Materials for Environmental Protection Speaker(s): Alexander Orlov Date: March...

295

SURFACE-MODIFIED COALS FOR ENHANCED CATALYST DISPERSION AND LIQUEFACTION  

SciTech Connect

This is the final report of the Department of Energy Sponsored project DE-FGF22-95PC95229 entitled, surface modified coals for enhanced catalyst dispersion and liquefaction. The aims of the study were to enhance catalyst loading and dispersion in coal for improved liquefaction by preadsorption of surfactants and catalysts on the coal and to train and educate minority scientists in catalysts and separation science. Illinois No. 6 Coal (DEC-24) was selected for the study. The surfactants investigated included dodecyl dimethyl ethyl ammonium bromide (DDAB), a cationic surfactant, sodium dodecyl sulfate, an anionic surfactant, and Triton x-100, a neutral surfactant. Ammonium molybdate tetrahydrate was used as the molybdenum catalyst precursor. Zeta potential, BET, FTIR, AFM, UV-Vis and luminescence intensity measurements were undertaken to assess the surface properties and the liquefaction activities of the coal. The parent coal had a net negative surface charge over the pH range 2-12. However, in the presence of DDAB the negativity of the surface charge decreased. At higher concentrations of DDAB, a positive surface charge resulted. In contrast to the effect of DDAB, the zeta potential of the coal became more negative than the parent coal in the presence of SDS. Adsorption of Triton reduced the net negative charge density of the coal samples. The measured surface area of the coal surface was about 30 m{sup 2}/g compared to 77m{sup 2}/g after being washed with deionized water. Addition of the surfactants decreased the surface area of the samples. Adsorption of the molybdenum catalyst increased the surface area of the coal sample. The adsorption of molybdenum on the coal was significantly promoted by preadsorption of DDAB and SDS. Molybdenum adsorption showed that, over a wide range of concentrations and pH values, the DDAB treated coal adsorbed a higher amount of molybdenum than the samples treated with SDS. The infrared spectroscopy (FTIR) and the atomic force microscopy (AFM) also provided evidence that confirmed the adsorption of the surfactants onto the coal surface. The luminescence measurements showed that the coal and solid surfactants luminescence weakly. No statistically significant influence was observed that resulted from the action of the surfactants or surfactant-molybdenum catalyst. Interestingly, the liquefaction results produced data that indicated the use of surfactants did not significantly improve the liquefaction activity of the coal as had initially been hypothesized. The UV-adsorption tests provided evidence that suggest that this may have been due to oversaturation. Detailed discussions of the results and recommendations for future work are provided.

Dr. Yaw D. Yeboah

1999-09-01T23:59:59.000Z

296

Materials Science Division - Argonne National Laboratories, Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

Home Home About MSD Information Awards Visit MSD Administrative Staff Division Personnel Research Research Groups Condensed Matter Theory Emerging Materials Energy Conversion and Storage Magnetic Films Molecular Materials Neutron and X-ray Scattering Superconductivity and Magnetism Surface Chemistry Synchrotron Radiation Studies Threat Detection and Analysis Group Research Areas Careers in MSD Internal Sites Search Front Slide 1 November 2013 - Patricia Dehmer (second from right), Deputy Director of Science Programs, DOE Office of Science, joined Argonne Director Eric Isaacs(left) and Associate Laboratory Director for Physical Sciences and Engineering Peter Littlewood(second from left) to tour the recently-opened Energy Sciences Building. Among Dehmer's stops was the crystal growth

297

Applied Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Geological Sciences Geological Sciences Atomic-scale structure of the orthoclase (001)-water interface measured with high-resolution x-ray reflectivity P. Fenter, H. Teng, P. GeissbĂĽhler, J.M. Hanchar, K.L. Nagy, and N.C. Sturchio Chemical analysis of individual interplanetary dust particles G.J. Flynn, S.R. Sutton, M. Rivers, P. Eng, and M. Newville Diffusion-limited biotransformation of metal contaminants in soils/sediments: chromium T. Tokunaga, J. Wan, D. Joyner, T. Hazen, M. Firestone, E. Schwartz, S. Sutton, and M. Newville Investigation of meteorite porosity by computed microtomography G.J. Flynn, M. Rivers, and S.R. Sutton Microscale imaging of pore structure in hydrothermal sulfide chimneys using synchrotron x-ray computed tomography P. O'Day, J. Muccino, S. Thompson, M.Jew, and J. Holloway

298

Science Highlights  

NLE Websites -- All DOE Office Websites (Extended Search)

Highlights Highlights Science Highlights Science highlights feature research conducted by staff and users at the ALS. If a Power Point summary slide or a PDF handout of the highlight is available, you will find it linked beneath the highlight listing and on the highlight's page. You may also print a version of a highlight by clicking the print icon associated with each highlight. The Molecular Ingenuity of a Unique Fish Scale Print Monday, 25 November 2013 12:06 ALS research has shown how the scales of a freshwater fish found in the Amazon Basin can literally re-orient themselves in real time to resist force, in essence creating an adaptable body armor. Read more... New Research on Jamming Behavior Expands Understanding Print Tuesday, 22 October 2013 00:00 Recent ALS research has revealed that even magnetic domains behave very much like other granular material systems, and their dynamical behavior mimics the universal characteristics of several jammed systems.

299

Applied Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Applied Science Applied Science Correlation of predicted and measured iron oxidation states in mixed iron oxides H. D. Rosenfeld and W. L. Holstein Development of a quantitative measurement of a diesel spray core using synchrotron x-rays C.F. Powell, Y. Yue, S. Gupta, A. McPherson, R. Poola, and J. Wang Localized phase transformations by x-ray-induced heating R.A. Rosenberg, Q. Ma, W. Farrell, E.D. Crozier, G.J. Soerensen, R.A. Gordon, and D.-T. Jiang Resonant x-ray scattering at the Se edge in ferroelectric liquid crystal materials L. Matkin, H. Gleeson, R. Pindak, P. Mach, C. Huang, G. Srajer, and J. Pollmann Synchrotron-radiation-induced anisotropic wet etching of GaAs Q. Ma, D.C. Mancini, and R.A. Rosenberg Synchrotron-radiation-induced, selective-area deposition of gold on

300

DOUBLE MAJORS Imaging Science + ...  

E-Print Network (OSTI)

DOUBLE MAJORS Imaging Science + ... Applied Mathematics Biomedical Sciences Computer Science Undergraduate Research Internships and Cooperative Education (Co-op) (optional) Study Abroad WHY IMAGING SCIENCE Science: BS, MS, PhD Color Science: MS, PhD BS + MS/PhD Combos HUMAN VISION BIO- MEDICAL ASTRO- PHYSICS

Zanibbi, Richard

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

FES Science Network Requirements  

E-Print Network (OSTI)

FES Science Network Requirements Report of the Fusion Energy Sciences Network Requirements Workshop Conducted March 13 and 14, 2008 #12;FES Science Network Requirements Workshop Fusion Energy Sciences Program Office, DOE Office of Science Energy Sciences Network Gaithersburg, MD ­ March 13 and 14, 2008 ESnet

Geddes, Cameron Guy Robinson

302

Refractive Optics for Hard X-ray Transmission Microscopy  

Science Conference Proceedings (OSTI)

For hard x-ray transmission microscopy at photon energies higher than 15 keV we design refractive condenser and imaging elements to be used with synchrotron light sources as well as with x-ray tube sources. The condenser lenses are optimized for low x-ray attenuation--resulting in apertures greater than 1 mm--and homogeneous intensity distribution on the detector plane, whereas the imaging enables high-resolution (condenser and imaging lenses are being developed. The imaging lenses (compound refractive lenses, CRLs) are made of SU-8 negative resist by deep x-ray lithography. SU-8 shows high radiation stability. The fabrication technique enables high-quality lens structures regarding surface roughness and arrangement precision with arbitrary 2D geometry. To provide point foci, crossed pairs of lenses are used. Condenser lenses have been made utilizing deep x-ray lithographic patterning of thick SU-8 layers, too, whereas in this case, the aperture is limited due to process restrictions. Thus, in terms of large apertures, condenser lenses made of structured and rolled polyimide film are more attractive. Both condenser types, x-ray mosaic lenses and rolled x-ray prism lenses (RXPLs), are considered to be implemented into a microscope setup. The x-ray optical elements mentioned above are characterized with synchrotron radiation and x-ray laboratory sources, respectively.

Simon, M.; Last, A.; Mohr, J.; Nazmov, V.; Reznikova, E. [Institute for Microstructure Technology, Karlsruhe Institute of Technology Kaiserstrasse 12, 76131 Karlsruhe (Germany); Ahrens, G.; Voigt, A. [Microresist Technology, Koepenikerstrasse 325, 12555 Berlin (Germany)

2011-09-09T23:59:59.000Z

303

Demonstration of Ballistic Electron Emission Microscopy / Spectroscopy on the Au/Si (001) system  

E-Print Network (OSTI)

The Ballistic Electron Emission Microscopy (BEEM) capabilities of a Scanning Tunneling Microscope (STM) have been verified. BEEM is used to analyze the characteristics of buried energy barriers and was developed as an extension of scanning tunneling microscopy; hence, the analytical capabilities of BEEM are on a manometer scale. To use BEEM, low-noise Au/Si (001) Schottky diodes have been fabricated. The diodes were macroscopically tested for their electrical properties using conventional current-voltage (I-V) techniques. The same diodes were then placed in an ultra-high vacuum STM system and analyzed with BEEM. The ballistic electron emission microscopy and scanning tunneling microscopy showed some correlation with the topography of the evaporated gold surface. The barrier heights of the diodes were extracted from the ballistic electron emission spectroscopy with the use of a simple one dimensional BEEM current model. Comparison between the barrier heights obtained with BEEM and conventional I-V techniques showed the localized barrier heights to be higher than the macroscopic barrier heights.

Drummond, Mary Alyssa

1997-01-01T23:59:59.000Z

304

Investigation of wettability by NMR microscopy and spin-lattice relaxation  

Science Conference Proceedings (OSTI)

The wettability of reservoir rock has an important impact on the efficiency of oil recovery processes and the distribution of oil and water within the reservoir. One of the potentially useful tools for wettability measurements is nuclear magnetic resonance (NMR) and spin-lattice relaxation. More recently using NMR microscopy NIPER has developed the capability of imaging one- and two-phase fluid systems in reservoir rock at resolutions to 25 microns. Effects seen in the images of fluids within the pore space of rocks near the rock grain surfaces hinted at the possibility of using NMR microscopy to map the wettability variations at grain sites within the pore space. Investigations were begun using NMR microscopy and spin-lattice relaxation time measurements on rock/fluid systems and on well-defined fractional wet model systems to study these effects. Relaxation data has been modelled using the stretched exponential relationship recently introduced. Comparisons of the NMR microscopy results of the model system with the rock results indicate that the observed effects probably do not reflect actual wettability variations within the pore space. The results of the relaxation time measurements reveal that even in the simple model studied, the behavior of two phases is somewhat ambiguous and much more complex and requires more study.

Doughty, D.A.; Tomutsa, Liviu

1993-11-01T23:59:59.000Z

305

A flow cell for electron microscopy imaging of specimen in ...  

A flow cell for electron microscopy imaging of specimen in liquid or gas. Note: The technology described above is an early stage opportunity. ...

306

Ultrasonic-Based Mode-Synthesizing Atomic Force Microscopy  

In a single run and without damaging the sample, ORNL’s mode-synthesizingatomic force microscopy (MSAFM), along with mode-synthesizing sensing, ...

307

NCEM National Center for Electron Microscopy: NCEM Fellowship  

NLE Websites -- All DOE Office Websites (Extended Search)

Visiting Scientist Program Visiting Scientist Program The National Center for Electron Microscopy (NCEM) offers a program that gives participants the opportunity to conduct...

308

NCEM National Center for Electron Microscopy: Workshops and Seminars  

NLE Websites -- All DOE Office Websites (Extended Search)

Upcoming Seminars Thursday, October 3, 2013 at 11am Matthew Mecklenburg Center for Electron Microscopy and MicroAnalysis, University of Southern California 2D crystals are...

309

Optical Microscopy and Spectroscopy for Material Characterization II  

Science Conference Proceedings (OSTI)

Oct 30, 2013 ... By measuring the phase of the SHG, it provides information about the relative ... We combined interferometry to SHG microscopy to retrieve the ...

310

Characterization of Battery Cycling by In-Situ Microscopy  

Science Conference Proceedings (OSTI)

Presentation Title, Characterization of Battery Cycling by In-Situ Microscopy ... of lithium ion batteries provides an important route to reducing the lifetime costs of ...

311

High Energy Diffraction Microscopy at the Advanced Photon Source ...  

Science Conference Proceedings (OSTI)

The APS 1-ID beamline is dedicated to high-energy diffraction and the status of the ... High Energy Diffraction Microscopy at the Advanced Photon Source 1-ID ...

312

In Situ Transmission Electron Microscopy Studies of Size  

Science Conference Proceedings (OSTI)

Using in situ transmission electron microscopy (TEM) nanocompression testing, we ... Ab Initio DFT Modeling of the Dislocation and Its Mobility in TiN Ceramic.

313

Gold nanoparticle-catalyzed reduction in a model system: Quantitative determination of reactive heterogeneity of a supported nanoparticle surface  

Science Conference Proceedings (OSTI)

Kinetic poisoning experiments employing organic ligands were conducted using a gold nanoparticle–catalyzed reaction consisting of the reduction of resazurin to resorufin. The kinetic contributions of three distinct types of sites along with the number density of each of these site types during reaction were determined. The calculated number densities of each of the three types of sites, hypothesized to be corners, edges, and terraces, correlates well with atomic-resolution micrographs of the supported gold nanoparticles, obtained using aberration-corrected transmission electron microscopy and with predictions based on geometric models of idealized gold nanoparticles. The most active sites comprising 1% of the surface atoms exhibit at least 30% of the total activity of the catalyst for resazurin reduction. The selective mechanical blocking of surface sites on nanoparticles, particularly undercoordinated sites, paves the way for novel approaches utilizing organic ligands to quantify the activity of different active sites and control catalysis on metal surfaces. This work was supported in part by the Laboratory Directed Research and Development program at the Pacific Northwest National Laboratory (PNNL). The aberration-corrected electron microscopy was performed in the William R. Wiley Environmental Molecular Sciences Laboratory, a U.S. Department of Energy (DOE) national scientific user facility located at PNNL and funded by BER. PNNL is operated by Battelle for the U.S. DOE under contract DE-AC05-76RL01830.

Nigra, Michael M.; Arslan, Ilke; Katz, Alexander

2012-11-01T23:59:59.000Z

314

X-ray Microscopy and Imaging: FAQs  

NLE Websites -- All DOE Office Websites (Extended Search)

Frequently Asked Questions Frequently Asked Questions How to get beamtime ? 80% and more of our beamtime is awarded to General Users through the General User Proposal system. So, in order to receive beamtime for an experiment you have in mind, you would have to complete a short proposal form (specific instructions as to deadlines, etc), which can be found following this link. We are well oversubscribed, so prospective users may not get beamtime the first time they apply, but as proposals age, the score increases. Often, it is helpful for 'new' users to contact beamline staff first before submitting, so that potential pitfalls in experiments are avoided. For that purpose, you may wish to browse our webpages, and see who does what kind of science and applications, and directly email the person you think is most likely appropriate. When in doubt, you can also always send an email to Qun Shen, who then will make sure it reaches the appropriate people.

315

Past Science Advisors Early Science Advisors  

E-Print Network (OSTI)

NSTC NNSA with R&D agencies Science and Technology in the U.S. GovernmentScience and Technology Transportation Defense Energy NSF-36 NIH USGS NOAA NIST Homeland Security DARPA, ONR, AFOSR NSTC NNSA Science NIST Homeland Security DARPA, ONR, AFOSR NSTC NNSA Science and Technology are important to most Federal

Colorado at Boulder, University of

316

POLITICAL SCIENCE Political science is the study  

E-Print Network (OSTI)

POLITICAL SCIENCE Political science is the study of governments, public policies, and political behavior. Political science uses both humanistic perspectives and scientific skills to examine the United States and all countries and regions of the world. Students enrolled in Political Science courses explore

317

[Faculty of Science Information and Computing Sciences  

E-Print Network (OSTI)

and Computing Sciences] 7 Combinators data I r = I r data K a r = K a data U r = U -- for constructors) Fix f r fold alg (In f) = alg (fmap (fold alg) f) #12;[Faculty of Science Information and Computing;[Faculty of Science Information and Computing Sciences] 17 Representing a family data ExprF (r :: ) (ix

Löh, Andres

318

[Faculty of Science Information and Computing Sciences  

E-Print Network (OSTI)

[Faculty of Science Information and Computing Sciences] Generic diff Andres Löh joint work with Eelco Lempsink and Sean Leather Dept. of Information and Computing Sciences, Utrecht University IFIP WG 2.1 meeting #64, Weltenburg, April 2, 2009 #12;[Faculty of Science Information and Computing

Löh, Andres

319

Life sciences and environmental sciences  

Science Conference Proceedings (OSTI)

The DOE laboratories play a unique role in bringing multidisciplinary talents -- in biology, physics, chemistry, computer sciences, and engineering -- to bear on major problems in the life and environmental sciences. Specifically, the laboratories utilize these talents to fulfill OHER`s mission of exploring and mitigating the health and environmental effects of energy use, and of developing health and medical applications of nuclear energy-related phenomena. At Lawrence Berkeley Laboratory (LBL) support of this mission is evident across the spectrum of OHER-sponsored research, especially in the broad areas of genomics, structural biology, basic cell and molecular biology, carcinogenesis, energy and environment, applications to biotechnology, and molecular, nuclear and radiation medicine. These research areas are briefly described.

Not Available

1992-02-01T23:59:59.000Z

320

Life sciences and environmental sciences  

Science Conference Proceedings (OSTI)

The DOE laboratories play a unique role in bringing multidisciplinary talents -- in biology, physics, chemistry, computer sciences, and engineering -- to bear on major problems in the life and environmental sciences. Specifically, the laboratories utilize these talents to fulfill OHER's mission of exploring and mitigating the health and environmental effects of energy use, and of developing health and medical applications of nuclear energy-related phenomena. At Lawrence Berkeley Laboratory (LBL) support of this mission is evident across the spectrum of OHER-sponsored research, especially in the broad areas of genomics, structural biology, basic cell and molecular biology, carcinogenesis, energy and environment, applications to biotechnology, and molecular, nuclear and radiation medicine. These research areas are briefly described.

Not Available

1992-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Assimilation of Satellite Sea Surface Temperature Retrievals  

Science Conference Proceedings (OSTI)

The Workshop on Assimilation of Satellite Sea Surface Temperatures (SST) Retrievals was held on 24–26 April 2001 in Camp Springs, Mary-land, at the National Oceanic and Atmospheric Administration (NOAA) Science Center. The purpose of the workshop ...

Andrew Harris; Eileen Maturi

2003-11-01T23:59:59.000Z

322

Archaeal Communities in Surface Stream Sediments  

E-Print Network (OSTI)

-5324 Contact: Tony Palumbo, palumboav@ornl.gov DOE/Office of Science/Biological & Environmental Research #12;Archaeal Communities in Surface Stream Sediments Contact: Tony Palumbo, palumboav@ornl.gov DOE/Office of Science/Biological & Environmental Research Freshwater Group Miscellaneous Crenarchaeota Group I3 Rice

323

ELSEVIER SurfaceScience369 (1996) 393-402 surface science  

E-Print Network (OSTI)

-rich layers below this depth. Activity at Challenger Mound, Porcupine Seabight (Site 1317) was one to two), and was higher in the mound than below the mound base. Consistent with the in- terpretation of hydrogenase, and specific activity of the tritiated headspace. Samples from Challenger Mound (Site 1317) were assayed

Rost, Martin

324

The Project for Intercomparison of Land-surface Parameterization Schemes  

Science Conference Proceedings (OSTI)

The Project for Intercomparison of Land-surface Parameterization Schemes (PILPS) is described and the first stage science plan outlined. PILPS is a project designed to improve the parameterization of the continental surface, especially the ...

A. Henderson-Sellers; Z-L. Yang; R. E. Dickinson

1993-07-01T23:59:59.000Z

325

Materials Science Portal  

Science Conference Proceedings (OSTI)

... Microscopy This project develops low-energy transmission electron diffraction, imaging, and spectroscopy in the scanning electron microscope, to ...

2013-08-08T23:59:59.000Z

326

Determining Mechanical Properties of Carbon Microcoils Using Lateral Force Microscopy  

Science Conference Proceedings (OSTI)

Mechanical properties of amorphous carbon microcoil (CMC) synthesized by thermal chemical vapor deposition method were examined in compression and tension tests, using the lateral force mode of atomic force microscope (AFM). The AFM cantilever tip was ... Keywords: Atomic force microscopy (AFM), atomic force microscopy, carbon microcoil, shear modulus, spring constant

Neng-Kai Chang; Shuo-Hung Chang

2008-03-01T23:59:59.000Z

327

Imaging Small Molecules by Scanning Probe Microscopy Shirley Chiang  

E-Print Network (OSTI)

1 Imaging Small Molecules by Scanning Probe Microscopy Shirley Chiang Department of Physics. Ohtani, R.J. Wilson, S. Chiang, and C.M. Mate, "Scanning Tunneling Microscopy Observations of Benzene. V.M. Hallmark, S. Chiang, J.F. Rabolt, J.D. Swalen, and R.J. Wilson, "Observation of Atomic

Chiang, Shirley

328

Web of Science Welcome to the Web of Science................................................................................................ 2  

E-Print Network (OSTI)

Web of Science #12; Welcome to the Web of Science................................................................................................ 2 Web of Science.................................................................................................................. 4 ISI Web of Knowledge

Huang, Su-Yun

329

Scanning Transmission X-ray Microscopy: Applications in Atmospheric Aerosol Research  

Science Conference Proceedings (OSTI)

Scanning transmission x-ray microscopy (STXM) combines x-ray microscopy and near edge x-ray absorption fine structure spectroscopy (NEXAFS). This combination provides spatially resolved bonding and oxidation state information. While there are reviews relevant to STXM/NEXAFS applications in other environmental fields (and magnetic materials) this chapter focuses on atmospheric aerosols. It provides an introduction to this technique in a manner approachable to non-experts. It begins with relevant background information on synchrotron radiation sources and a description of NEXAFS spectroscopy. The bulk of the chapter provides a survey of STXM/NEXAFS aerosol studies and is organized according to the type of aerosol investigated. The purpose is to illustrate the current range and recent growth of scientific investigations employing STXM-NEXAFS to probe atmospheric aerosol morphology, surface coatings, mixing states, and atmospheric processing.

Moffet, Ryan C.; Tivanski, Alexei V.; Gilles, Mary K.

2011-01-20T23:59:59.000Z

330

Biological Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Science Biological Science A unique zinc-binding site revealed by the high-resolution x-ray structure of homotrimeric Apo2L/TRAIL S.G. Hymowitz, M.P. O'Connell, M.H. Ultsch, A. Hurst, K. Totpal, A. Ashkenazi, R.F. Kelley, and A.M. de Vos b-carbonic anhydrase active site architecture is a mirror image of a-carbonic anhydrases E.F. Pai and M.S. Kimber Binding of Cd ions to the cell wall of B. Subtilis - an EXAFS study M. Boyanov, D. Fowle, K. Kemner, B. Bunker, and J. Fein Crystallographic evidence for Try157 functioning as the active site base in human UDP-galactose 4-epimerase J.B. Thoden, T.M. Wohlers, J.L. Fridovich-Keil, and H.M. Holden Crystallographic studies of dsDNA phage HK97 structure and maturation W.R. Wikoff, Z. Che, W. Schildkamp, L. Liljas, R.L. Duda, R.W. Hendrix, and

331

Supercomputing | Computer Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Resilience Engineering of Scientific Software Translation Quantum Computing Machine Learning Information Retrieval Content Tagging Visual Analytics Data Earth Sciences Energy Science Future Technology Knowledge Discovery Materials Mathematics National Security Systems Modeling Engineering Analysis Behavioral Sciences Geographic Information Science and Technology Quantum Information Science Supercomputing and Computation Home | Science & Discovery | Supercomputing and Computation | Research Areas | Computer Science SHARE Computer Science Computer Science at ORNL involves extreme scale scientific simulations through research and engineering efforts advancing the state of the art in algorithms, programming environments, tools, and system software. ORNL's work is strongly motivated by, and often carried out in direct

332

Materials Science | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Economy Funding Opportunities State & Local Government Science & Innovation Science & Technology Science Education Innovation Energy Sources Energy Usage Energy Efficiency...

333

Behavioral Sciences | ornl.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Chemistry Computational Engineering Computer Science Data Earth Sciences Energy Science Future Technology Knowledge Discovery Materials Mathematics National Security Systems...

334

NREL: Energy Sciences - Jie Ma  

NLE Websites -- All DOE Office Websites (Extended Search)

Jie Ma Jie Ma Postdoctoral Researcher Photo of Jie Ma Phone: (303) 384-6511 Email: jie.ma@nrel.gov At NREL Since: 2010 Dr. Ma graduated from the University of Science and Technology of China in 2004 and received a Ph.D. degree from Institute of Physics, Chinese Academy of Sciences in 2009. Jie joined the Computational Materials Science Team at NREL as a postdoctoral researcher in March, 2010. He is currently working on computational design and characterization of nanoscale materials for doping, water splitting, and solar cells, using quantum mechanical electronic structure calculation and molecular dynamics simulation techniques. Research Interests Low-dimensional systems (quantum dots, nanotube and nanowires, and surfaces) Doping in semiconductors. Solar cell and water splitting.

335

EMSL: Environmental Molecular Sciences Laboratory  

NLE Websites -- All DOE Office Websites

Science Science FAQ Search EMSL Home About EMSL Science Capabilities User Access Publications News Contacts Back Pause Slideshow Slide 1 Next Biofuel breakdown A collaborative study shows that Enterobacter lignolyticus SCF1 can multitask quite successfully: degrade lignin as both a food source and for breathing - the first soil bacterium to demonstrate this dual capability. Research Highlights Watch a virtual tour of EMSL The hidden ties that bind EMSL scientists took advantage of advanced instrumental capabilities, a specially designed experimental cell and theoretical modeling to successfully deduce the how molecules of carboxylic acid- a common organic acid found in nature - bind to ceria nanoparticle surfaces. Research Highlights Watch a virtual tour of EMSL Ditch the dirt

336

Materials Science and Engineering A314 (2001) 157161 In situ transmission electron microscopy observations of  

E-Print Network (OSTI)

the piezos increase as the walls become thinner, so depoling will then be- come the limiting factor. Typical PZT piezos have dc depoling fields of at least 200 V/mm, so allowable tube thicknesses may be 1.2 mm

Chen, Haydn H.

337

NREL: Energy Sciences - Theoretical Materials Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Computational Materials Science Solid-State Theory Materials Science Hydrogen Technology & Fuel Cells Process Technology & Advanced Concepts Research Staff Computational Science Printable Version Theoretical Materials Science Learn about our research staff including staff profiles, publications, and contact information. Using modern computational techniques, the Theoretical Materials Science Group, within NREL's Chemical and Materials Science Center, applies quantum mechanics to complex materials, yielding quantitative predictions to guide and interact with experimental explorations. Current research focuses on the following efforts: Design new photovoltaic materials that can improve solar cell efficiency and reduce its cost. Explain the underlying physics of new

338

ORISE: Center for Science Education  

NLE Websites -- All DOE Office Websites (Extended Search)

Center for Science Education ORAU Center for Science Education ORAU Center for Science Education Completed in January 2009, the Center for Science Education was established to...

339

Science DMZ Implemented at NERSC  

NLE Websites -- All DOE Office Websites (Extended Search)

ESnet Overview ESnet Staff Governance Our Network Case Studies OSCARS Case Studies Science DMZ Case Studies Science DMZ CU Science DMZ Penn State & VTTI Science DMZ NOAA...

340

Modulated microwave microscopy and probes used therewith  

Science Conference Proceedings (OSTI)

A microwave microscope including a probe tip electrode vertically positionable over a sample and projecting downwardly from the end of a cantilever. A transmission line connecting the tip electrode to the electronic control system extends along the cantilever and is separated from a ground plane at the bottom of the cantilever by a dielectric layer. The probe tip may be vertically tapped near or at the sample surface at a low frequency and the microwave signal reflected from the tip/sample interaction is demodulated at the low frequency. Alternatively, a low-frequency electrical signal is also a non-linear electrical element associated with the probe tip to non-linearly interact with the applied microwave signal and the reflected non-linear microwave signal is detected at the low frequency. The non-linear element may be semiconductor junction formed near the apex of the probe tip or be an FET formed at the base of a semiconducting tip.

Lai, Keji; Kelly, Michael; Shen, Zhi-Xun

2012-09-11T23:59:59.000Z

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While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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341

Ion-induced electron emission microscopy  

DOE Patents (OSTI)

An ion beam analysis system that creates multidimensional maps of the effects of high energy ions from an unfocussed source upon a sample by correlating the exact entry point of an ion into a sample by projection imaging of the secondary electrons emitted at that point with a signal from a detector that measures the interaction of that ion within the sample. The emitted secondary electrons are collected in a strong electric field perpendicular to the sample surface and (optionally) projected and refocused by the electron lenses found in a photon emission electron microscope, amplified by microchannel plates and then their exact position is sensed by a very sensitive X Y position detector. Position signals from this secondary electron detector are then correlated in time with nuclear, atomic or electrical effects, including the malfunction of digital circuits, detected within the sample that were caused by the individual ion that created these secondary electrons in the fit place.

Doyle, Barney L. (Albuquerque, NM); Vizkelethy, Gyorgy (Albuquerque, NM); Weller, Robert A. (Brentwood, TN)

2001-01-01T23:59:59.000Z

342

Science Cafe  

NLE Websites -- All DOE Office Websites (Extended Search)

Cafés Cafés Science Cafe November 1, 2013 Print Tuesday, 24 September 2013 15:00 Friday, November 1@ 12 noon in USB 15-253 jackson Exposing the Trade Secrets of Ancient Roman Engineers: Nano-Structure and Material Properties of Al-tobermorite in 2000-Year-Old Seawater Harbor Concrete Marie Jackson, UC Berkeley, Beamlines 5.3.2, 12.2.2,12.3.2 DNA Labelled with Gold Greg Hura, Physical Biosciences Division, Beamline 12.3.1 robin Pseudo-Single-Bunch Operation with Adjustable Frequency - A New Operation Mode for the ALS Dave Robin, AFRD August 29, 2013 Print Thursday, 11 April 2013 08:37 Date-Change: Thursday, August 29 @ 12 noon in USB 15-253 beavers Under Pressure: Why Diamonds Are a Crystallographer's Best Friend! Christine Beavers, Experimental Systems Group, Beamline 11.3.1

343

Analytical Transmission Electron Microscopy in the Third Dimension  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2013. Symposium, Optical and X-ray Imaging Techniques for Material Characterization.

344

Faculty of Science Biological Sciences  

E-Print Network (OSTI)

on July 1, 2010. California Storm Water BMP Handbook ­ Construction, January 2003 LBNL Surface Water in Bevatron beamline targets, and chromium in the cooling tower. Some of these materials may be present control to remaining active and non-active areas as required by the California Stormwater BMPs Handbook

Auckland, University of

345

E-Science Day  

E-Print Network (OSTI)

on December 6, 2011, E-Science Day was a day-long event,regional librarians in e-science, and to expose regionalthe initiation of e-science support projects within their

Abad, Raquel

2012-01-01T23:59:59.000Z

346

Communicating Evolution as Science  

E-Print Network (OSTI)

thuringiensis toxins. Science. 1992;258(5087):1451–5. MillerRT, Ruse M. But is it science? Amherst, NY: Prometheusto the philosophy of science: theory and reality. Chicago:

Thanukos, Anastasia

2010-01-01T23:59:59.000Z

347

BES Science Network Requirements  

E-Print Network (OSTI)

the Directors of the Office of Science, Office of AdvancedOffice of Basic Energy Sciences. This is LBNL report LBNL-BES Science Network Requirements Report of the Basic Energy

Dart, Eli

2011-01-01T23:59:59.000Z

348

Science-Driven Network  

NLE Websites -- All DOE Office Websites (Extended Search)

Science-Driven Network Requirements for ESnet Update to the 2002 Office of Science Networking Requirements Workshop Report February 21, 2006 1-1 Science-Driven Network Requirements...

349

Plasmonic Field Enhancement of Individual Nanoparticles by Correlated Scanning and Photoemission Electron Microscopy  

SciTech Connect

We present results of a combined two-photon photoemission and scanning electron microscopy investigation to determine the electromagnetic enhancement factors of silver-coated spherical nanoparticles deposited on an atomically flat mica substrate. Femtosecond laser excitation, of the nanoparticles, produces intense photoemission, attributed to near-resonant excitation of localized surface plasmons. Enhancement factors are determined by comparing the respective two-photon photoemission yield measured for equal areas between single nanoparticles to that of the surrounding flat surface. For s-polarized, 400 nm (~ 3.1 eV) femtosecond radiation a distribution of enhancement factors are found with a large percentage (77%) of the nanoparticles falling within a median range. A correlated scanning electron microscopy analysis demonstrated that the nanoparticles typifying the median of the distribution were characterized by ideal spherical shapes and defect-free morphologies. The single largest enhancement factors were in contrast produced by a very small percentage (8%) of the total, for which evidence of silver defect anomalies were found that contributed to the overall structure of the nanoparticle. Comparisons are made between the experimentally measured enhancement factors and previously reported theoretical predictions of the localized surface plasmon near-field intensities for isolated nanometer-sized silver spheres.

Peppernick, Samuel J.; Joly, Alan G.; Beck, Kenneth M.; Hess, Wayne P.

2011-01-21T23:59:59.000Z

350

Surface Soil  

NLE Websites -- All DOE Office Websites (Extended Search)

Surface Soil Surface Soil Surface Soil We compare local soil samples with samples collected from northern New Mexico locations that are beyond the range of potential influence from normal Laboratory operations. April 12, 2012 Farm soil sampling Two LANL environmental field team members take soil samples from a farm. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email Measurements are compared to samples from the regional sites and compared to averages over time to see if there are changes in concentrations. Monitoring surface soil LANL has monitored surface soils since the early 1970s. Institutional surface soil samples are collected from 17 on-site, 11 perimeter, and six regional (background) locations every three years.

351

Ti3+ in the surface of titanium dioxide: generation, properties and photocatalytic application  

Science Conference Proceedings (OSTI)

Titanium dioxide (TiO2) is the most investigated crystalline oxide in the surface science of metal oxides. Its physical and chemical properties are dominantly determined by its surface condition. Ti3+ surface defect (TSD) is one ...

Liang-Bin Xiong; Jia-Lin Li; Bo Yang; Ying Yu

2012-01-01T23:59:59.000Z

352

Surface Soil  

NLE Websites -- All DOE Office Websites (Extended Search)

operations Why we sample surface soil Soil sampling is performed to: Determine radionuclide and chemical concentrations in soil and compare these results to regional...

353

National Security Science  

NLE Websites -- All DOE Office Websites (Extended Search)

NSS cover - april NSS cover - april Read the April 2013 issue: web | interactive| pdf Skip to Content Skip to Search Skip to Utility Navigation Skip to Top Navigation Skip to Content Navigation Los Alamos National Laboratory submit About | Mission | Business | Newsroom | Phonebook Los Alamos National Laboratory links to site home page Science & Innovation Collaboration Careers, Jobs Community, Environment Science & Innovation Home » Science & Engineering Capabilities Accelerators, Electrodynamics Bioscience, Biosecurity, Health Chemical Science Earth, Space Sciences Energy Engineering High Energy Density Plasmas, Fluids Information Science, Computing, Applied Math Materials Science National Security, Weapons Science Nuclear & Particle Physics, Astrophysics, Cosmology

354

Lederman Science Center  

NLE Websites -- All DOE Office Websites (Extended Search)

Lederman Science Center: Fermilab Science for Kids and Educators LSC Home Plan a Visit DirectionsMap Exhibits: Overview - List - Physics Playground LSC Floorplan LSC Store...

355

Life Sciences News  

Science Conference Proceedings (OSTI)

... Life Sciences News. ... may be within reach of every doctor's office if recent ... NIST Center for Nanoscale Science and Technology researchers Gregg ...

2010-05-24T23:59:59.000Z

356

Science Accelerator Widget  

Office of Scientific and Technical Information (OSTI)

Science Accelerator Widget You can now explore multiple Science Accelerator features through the new tabbed widget. Download this tool via the 'Get Widget Options' link or by...

357

Basic Energy Sciences  

Office of Science (SC) Website

http:science.energy.govbesaboutjobs Below is a list of currently open federal employment opportunities in the Office of Science. Prospective applicants should follow the...

358

Fusion Energy Sciences  

Office of Science (SC) Website

http:science.energy.govfesaboutjobs Below is a list of currently open federal employment opportunities in the Office of Science. Prospective applicants should follow the...

359

BNL | Computational Science Center  

NLE Websites -- All DOE Office Websites (Extended Search)

Computational Science Center Home Research Support Areas Publications Staff EBC Environmental, Biological, and Computational Sciences Directorate CSC image CSC image CSC image CSC...

360

Science Conference Proceedings  

Office of Scientific and Technical Information (OSTI)

energy, aeronautics and astronautics, meteorology, engineering, computer science, electric power, and fossil fuels The OSTI Science Conference Proceedings portal was devised to...

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Science Fair Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

Science Fair Projects NEWTON Ask A Scientist program is not designed to provide science fair ideas or deal with individual project problems. Our program is designed to answer...

362

NEWTON's General Science Videos  

NLE Websites -- All DOE Office Websites (Extended Search)

General Science Videos Do you have a great general science video? Please click our Ideas page. Featured Videos: Videos from National Geographic Kids Videos from National Geographic...

363

DOE Science Showcase - Nanotechnology  

Office of Scientific and Technical Information (OSTI)

valuable way to spotlight needs and target resources in this critical area of science and technology. Nanotechnology Research Results in DOE Databases DOepatents ScienceCinema...

364

NEWTON's Computer Science Archive  

NLE Websites -- All DOE Office Websites (Extended Search)

Computer Science Archive: Loading Most Recent Computer Science Questions: Preparation for Video Game Creator Most Common Programming and Web Script How Does Spell Check Work? How...

365

Energy Science at NERSC  

NLE Websites -- All DOE Office Websites (Extended Search)

Artificial Photosynthesis II - EFRC Carbon Capture and Sequestration Activities at NERSC Novel Methods for Harvesting Solar Energy Engineering Science Environmental Science Fusion...

366

INSTITUTE OF COMPUTER SCIENCE  

E-Print Network (OSTI)

Institute of Computer Science, Academy of Sciences of the Czech Republic. Pod vod?renskou v 2, 182 07 Prague 8, Czech Republic. phone: (+420)266052083 ...

367

NEWTON's General Science Archive  

NLE Websites -- All DOE Office Websites (Extended Search)

General Science Archive: Loading Most Recent General Science Questions: What is Equilibrium? Banana and Human Genetics Hair Examination Body Buffer Action Jellyfish : Plant or...

368

Materials sciences programs, Fiscal year 1997  

Science Conference Proceedings (OSTI)

The Division of Materials Sciences is responsible for basic research and research facilities in materials science topics important to the mission of the Department of Energy. The programmatic divisions under the Office of Basic Energy Sciences are Chemical Sciences, Engineering and Geosciences, and Energy Biosciences. Materials Science is an enabling technology. The performance parameters, economics, environmental acceptability and safety of all energy generation, conversion, transmission and conservation technologies are limited by the properties and behavior of materials. The Materials Sciences programs develop scientific understanding of the synergistic relationship among synthesis, processing, structure, properties, behavior, performance and other characteristics of materials. Emphasis is placed on the development of the capability to discover technologically, economically, and environmentally desirable new materials and processes, and the instruments and national user facilities necessary for achieving such progress. Materials Sciences subfields include: physical metallurgy, ceramics, polymers, solid state and condensed matter physics, materials chemistry, surface science and related disciplines where the emphasis is on the science of materials. This report includes program descriptions for 517 research programs including 255 at 14 DOE National Laboratories, 262 research grants (233 of which are at universities), and 29 Small Business Innovation Research Grants. Five cross-cutting indices located at the rear of this book identify all 517 programs according to principal investigator(s), materials, techniques, phenomena, and environment.

NONE

1998-10-01T23:59:59.000Z

369

High-spatial-resolution Raman microscopy of stress in shallow-trench-isolated Si structures  

Science Conference Proceedings (OSTI)

Stress in single and periodic shallow-trench-isolated Si structures was examined by 364 nm excitation confocal resonance Raman microscopy, laser penetration being restricted to the near-surface region. Using a 1.3 numerical aperture microobjective lens with a theoretical {approx}140 nm spatial resolution, the authors show that the configuration with both incident and scattered lights polarized parallel to each other and perpendicular to Si stripes is favorable for stress detection in the middle of the stripes, suppressing contributions from their edges. The stresses located in different areas of the structures were identified and analyzed.

Poborchii, Vladimir; Tada, Tetsuya; Kanayama, Toshihiko [MIRAI, Advanced Semiconductor Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 4, Higashi, Tsukuba 305-8562 (Japan)

2006-12-04T23:59:59.000Z

370

Structure and Reactions of Carbon and Hydrogen on Ru(0001): A Scanning Tunneling Microscopy Study  

DOE Green Energy (OSTI)

The interaction between carbon and hydrogen atoms on a Ru(0001) surface was studied using scanning tunneling microscopy (STM), Density Functional Theory (DFT) and STM image calculations. Formation of CH species by reaction between adsorbed H and C was observed to occur readily at 100 K. When the coverage of H increased new complexes of the form CH+nH (n = 1, 2 and 3) were observed. These complexes, never observed before, might be precursors for further hydrogenation reactions. DFT analysis reveals that a considerable energy barrier exists for the CH+H {yields} CH{sub 2} reaction.

Shimizu, Tomoko K.; Mugarza, Aitor; Cerda, Jorge; Salmeron, Miquel

2008-09-09T23:59:59.000Z

371

NCEM National Center for Electron Microscopy: Becoming an NCEM User  

NLE Websites -- All DOE Office Websites (Extended Search)

New Research New Research Gallery Microscopy Links Becoming an NCEM User Step 1: Submit a proposal Step 2: Before you begin your research Step 3: Instrument qualification Step 4: Accessing NCEM facilities and performing research Step 1: Submit a proposal Deadlines for new proposals are March 15, June 15, September 15, December 15. Access to NCEM facilities is granted to researchers whose proposals are accepted by the NCEM proposal review committee. NCEM users are expected to have a strong background in transmission electron microscopy, and submitted proposals should include evidence of prior electron microscopy experience by the intended operator. Researchers who do not have sufficient experience in electron microscopy may be able to use NCEM facilities through a collaborative project.

372

NCEM National Center for Electron Microscopy: Contact NCEM  

NLE Websites -- All DOE Office Websites (Extended Search)

General Contact Jane Cavlina National Center for Electron Microscopy, MS 72-150 Lawrence Berkeley National Laboratory Berkeley, CA 94720 Tel.: (510) 486-6036 Fax: (510) 486-5888...

373

Target-specific contrast agents for magnetic resonance microscopy  

E-Print Network (OSTI)

High-resolution ex vivo magnetic resonance microscopy (MRM) can be used to delineate prominent architectonic features in the human brain, but increased contrast is required to visualize more subtle distinctions. The goal ...

Hepler Blackwell, Megan Leticia

2007-01-01T23:59:59.000Z

374

Estimating Geometric Dislocation Densities in Polycrystalline Materialsfrom Orientation Imaging Microscopy  

Science Conference Proceedings (OSTI)

Herein we consider polycrystalline materials which can be taken as statistically homogeneous and whose grains can be adequately modeled as rigid-plastic. Our objective is to obtain, from orientation imaging microscopy (OIM), estimates of geometrically necessary dislocation (GND) densities.

Man, Chi-Sing [University of Kentucky; Gao, Xiang [University of Kentucky; Godefroy, Scott [University of Kentucky; Kenik, Edward A [ORNL

2010-01-01T23:59:59.000Z

375

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Cloud Radiative Forcing of the Arctic Surface: The Influence of Cloud Cloud Radiative Forcing of the Arctic Surface: The Influence of Cloud Properties, Surface Albedo, and Solar Zenith Angle Shupe, M.D. and Intrieri, J.M., NOAA - Environmental Technology Laboratory Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting An annual cycle of cloud and radiation measurements made as part of the Surface Heat Budget of the Arctic program are utilized to determine which properties of Arctic clouds control the surface radiation balance. Surface cloud radiative forcing (CF), defined as the difference between the all-sky net surface radiative flux and the clear sky net surface flux, was calculated from measurements of broadband fluxes and results from a clear sky model. Longwave cloud forcing (CFLW) is shown to be a function of cloud

376

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Winter Surface Radiative Energy Exchange at NSA: Cloudy vs. Clear Sky Winter Surface Radiative Energy Exchange at NSA: Cloudy vs. Clear Sky Stramler, K.(a), Del Genio, A.D.(b), and Rossow, W.(b), Columbia University (a), NASA/GISS (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM measurements at Point Barrow, Alaska show that atmospheric emission drives the winter variability of the surface radiative energy exchange, as the incursion of air masses of differing properties alternately warm and cool the snow surface and the snow-ground interface. The magnitude of the surface radiative energy exchange, however, appears to be in part dictated by the more slowly varying sub-surface temperatures. This is most evident when observing the inter-annual variability of clear-sky surface net longwave radiation at NSA; winter cloudy-sky surface net longwave radiation

377

Minimal surfaces and multifunctionality  

E-Print Network (OSTI)

Triply periodic minimal surfaces are objects of great interest to physical scientists, biologists and mathematicians. It has recently been shown that triply periodic two-phase bicontinuous composites with interfaces that are the Schwartz primitive (P) and diamond (D) minimal surfaces are not only geometrically extremal but extremal for simultaneous transport of heat and electricity. More importantly, here we further establish the multifunctionality of such two-phase systems by showing that they are also extremal when a competition is set up between the effective bulk modulus and the electrical (or thermal) conductivity of the composite. The implications of our findings for materials science and biology, which provides the ultimate multifunctional materials, are discussed.

S. Torquato; A. Donev

2004-01-01T23:59:59.000Z

378

NEWTON's Material Science Videos  

NLE Websites -- All DOE Office Websites (Extended Search)

Material Science Videos Material Science Videos Do you have a great material science video? Please click our Ideas page. Featured Videos: University of Maryland - Material Science University of Maryland - Material Science The Department of Materials Science and Engineering offers a set of videos about various topics in material science to help students understand what material science is. Learn about plasma, polymers, liquid crystals and much more. LearnersTV.com - Material Science LearnersTV.com - Material Science LearnersTV.com offers a series of educational material science lectures that are available to the public for free. Learn about topics like polymers, non-crystalline solids, crystal geometry, phase diagrams, phase transformations and more. NanoWerk - Nanotechnology Videos NanoWerk - Nanotechnology Videos

379

Multiplexed Biomolecular Science Group Homepage  

Science Conference Proceedings (OSTI)

Multiplexed Biomolecular Science Group. Welcome. The Multiplexed Biomolecular Science Group conducts research in ...

2012-10-06T23:59:59.000Z

380

Cloud Computing Forensic Science Workshop  

Science Conference Proceedings (OSTI)

Cloud Computing Forensic Science Workshop. Purpose: The New Frontiers in IT and Measurement Science Rapid advances ...

2013-09-05T23:59:59.000Z

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Microscopy investigations of ash and particulate matter accumulation in diesel particulate filter surface pores  

E-Print Network (OSTI)

There has been increased focus on the environmental impact of automobile emissions in recent years. These environmental concerns have resulted in the creation of more stringent particulate matter emissions regulations in ...

Beauboeuf, Daniel P

2010-01-01T23:59:59.000Z

382

X-ray spectro-microscopy of complex materials and surfaces  

Science Conference Proceedings (OSTI)

The detailed understanding of complex materials used in information technology requires the use of state-of-the-art experimental techniques that provide information on the electronic and magnetic properties of the materials. The increasing miniaturization ...

J. Stöhr; S. Anders

2000-07-01T23:59:59.000Z

383

New Tools, New Science: Biology  

NLE Websites -- All DOE Office Websites (Extended Search)

transcriptomics, proteomics, and metabolomics analyses as well as high spatial resolution electron and fluorescence microscopy. MiCRoSCoPy Multi-photon fluorescence microscope:...

384

Photon Sciences | About the Photon Sciences Directorate  

NLE Websites -- All DOE Office Websites (Extended Search)

About the Photon Sciences Directorate About the Photon Sciences Directorate The Photon Sciences Directorate operates the National Synchrotron Light Source (NSLS) and is constructing the National Synchrotron Light Source II (NSLS-II), both funded by the Department of Energy Office of Science. These facilities support a large community of scientists using photons (light) to carry out research in energy and environmental sciences, physics, materials science, chemistry, biology and medicine. NSLS National Synchrotron Light Source NSLS-II National Synchrotron Light Source II This is a very exciting period for photon sciences at Brookhaven Lab and a time of unprecedented growth for the directorate. The NSLS-II Project is progressing rapidly and smoothly through design and construction, driven by

385

Imaging doped silicon test structures using low energy electron microscopy.  

SciTech Connect

This document is the final SAND Report for the LDRD Project 105877 - 'Novel Diagnostic for Advanced Measurements of Semiconductor Devices Exposed to Adverse Environments' - funded through the Nanoscience to Microsystems investment area. Along with the continuous decrease in the feature size of semiconductor device structures comes a growing need for inspection tools with high spatial resolution and high sample throughput. Ideally, such tools should be able to characterize both the surface morphology and local conductivity associated with the structures. The imaging capabilities and wide availability of scanning electron microscopes (SEMs) make them an obvious choice for imaging device structures. Dopant contrast from pn junctions using secondary electrons in the SEM was first reported in 1967 and more recently starting in the mid-1990s. However, the serial acquisition process associated with scanning techniques places limits on the sample throughput. Significantly improved throughput is possible with the use of a parallel imaging scheme such as that found in photoelectron emission microscopy (PEEM) and low energy electron microscopy (LEEM). The application of PEEM and LEEM to device structures relies on contrast mechanisms that distinguish differences in dopant type and concentration. Interestingly, one of the first applications of PEEM was a study of the doping of semiconductors, which showed that the PEEM contrast was very sensitive to the doping level and that dopant concentrations as low as 10{sup 16} cm{sup -3} could be detected. More recent PEEM investigations of Schottky contacts were reported in the late 1990s by Giesen et al., followed by a series of papers in the early 2000s addressing doping contrast in PEEM by Ballarotto and co-workers and Frank and co-workers. In contrast to PEEM, comparatively little has been done to identify contrast mechanisms and assess the capabilities of LEEM for imaging semiconductor device strictures. The one exception is the work of Mankos et al., who evaluated the impact of high-throughput requirements on the LEEM designs and demonstrated new applications of imaging modes with a tilted electron beam. To assess its potential as a semiconductor device imaging tool and to identify contrast mechanisms, we used LEEM to investigate doped Si test structures. In section 2, Imaging Oxide-Covered Doped Si Structures Using LEEM, we show that the LEEM technique is able to provide reasonably high contrast images across lateral pn junctions. The observed contrast is attributed to a work function difference ({Delta}{phi}) between the p- and n-type regions. However, because the doped regions were buried under a thermal oxide ({approx}3.5 nm thick), e-beam charging during imaging prevented quantitative measurements of {Delta}{phi}. As part of this project, we also investigated a series of similar test structures in which the thermal oxide was removed by a chemical etch. With the oxide removed, we obtained intensity-versus-voltage (I-V) curves through the transition from mirror to LEEM mode and determined the relative positions of the vacuum cutoffs for the differently doped regions. Although the details are not discussed in this report, the relative position in voltage of the vacuum cutoffs are a direct measure of the work function difference ({Delta}{phi}) between the p- and n-doped regions.

Nakakura, Craig Yoshimi; Anderson, Meredith Lynn; Kellogg, Gary Lee

2010-01-01T23:59:59.000Z

386

Applied Quantum Information Science  

Science Conference Proceedings (OSTI)

Applied Quantum Information Science. Summary: Theory is being developed and used to devise methods for preserving ...

2012-05-30T23:59:59.000Z

387

Graduate studies Ecosystem Science  

E-Print Network (OSTI)

Graduate studies in Ecosystem Science and Management Ph.D. M.S. M.Agr. or Natural Resources Development MNRD Department of Ecosystem Science and Management College of Agriculture and Life Sciences. The thesisbased Master of Science and Ph.D. degrees are designed for research or academic careers

388

Architecture Bachelor of Science  

E-Print Network (OSTI)

Architecture Bachelor of Science 201213 Degree Map First Year Fall Winter Spring Notes Freshman Inquiry 5 ARCH 100 4 ARCH 101 4 Science Elective 4 ARCH 120 4 ARCH 121 4 Math 4 ARCH 232 4 ARCH 280 6 ARCH 281 6 Lab Science Elective 4 Lab Science Elective 4

Bertini, Robert L.

389

Education research Primary Science  

E-Print Network (OSTI)

Education research Primary Science Survey Report December 2011 #12;Primary Science Survey Report, Wellcome Trust 1 Background In May 2009 Key Stage 2 science SATs (Standard Assessment Tests) were abolished fiasco might occur, where the results were delayed and their quality questioned. The loss of science SATs

Rambaut, Andrew

390

Solar Energy Science Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Science Projects Curriculum: Solar Power -(thermodynamics, lightelectromagnetic, radiation, energy transformation, conductionconvection, seasons, trigonometry) Grade...

391

Science Summary  

NLE Websites -- All DOE Office Websites (Extended Search)

25, 2008 25, 2008 » Links Scientific Highlight Saphire Website Scripps Press Release Tracking Ebola, Scripps At the Forefront » Share this Article Laboratree Ologeez SciLink LabSpaces Revealing a Structural Weakness of the Deadly Ebolavirus summary written by Brad Plummer, SLAC Communication Office Scientists are one step closer to conquering the deadly Ebolavirus, thanks to research conducted at SSRL structural biology Beam Lines 9-2 and 11-1 and ALS Beam Line 5.02 by a team of researchers led by Erica Ollmann Saphire from The Scripps Research Institute. The results were published in the July 10 edition of the journal Nature. Using macromolecular crystallography techniques, the team solved the structure of a protein on the Ebolavirus's surface, called glycoprotein GP,

392

Science DMZ Case Studies  

NLE Websites -- All DOE Office Websites (Extended Search)

Studies Studies About ESnet Overview ESnet Staff Governance Our Network Case Studies OSCARS Case Studies Science DMZ Case Studies Science DMZ CU Science DMZ Penn State & VTTI Science DMZ NOAA Science DMZ NERSC Science DMZ ALS Multi-facility Workflow LCLS ESnet Strategic Plan ESnet Organizational Chart ESnet History Science Requirements Careers Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Science DMZ Case Studies Developed by ESnet engineers, the Science DMZ model addresses common network performance problems encountered at any institution by creating an environment that is tailored to the needs of high performance science

393

NEWTON's Material Science References  

NLE Websites -- All DOE Office Websites (Extended Search)

Material Science References Material Science References Do you have a great material science reference link? Please click our Ideas page. Featured Reference Links: Materials Research Society Materials Research Society The Materials Research Society has assembled many resources in its Materials Science Enthusiasts site. This site has information for the K-12 audience, general public, and materials science professionals. Material Science nanoHUB nanHUB.org is the place for nanotechnology research, education, and collaboration. There are Simulation Programs, Online Presentations, Courses, Learning Modules, Podcasts, Animations, Teaching Materials, and more. (Intened for high school and up) Materials Science Resources on the Web Materials Science Resources on the Web This site gives a good general introduction into material science. Sponsered by Iowa State, it talks about what material science is, ceramics and composites, and other topics.

394

NEWTON's General Science References  

NLE Websites -- All DOE Office Websites (Extended Search)

General Science References General Science References Do you have a great general science reference link? Please click our Ideas page. Featured Reference Links: First.gov Science and Technology First.gov Science and Technology This site, sponsered by the US Government provides reference links to topics on science, telecommunications, computers, research agencies, and news. NASA Science NASA Science NASA Science, is a website sponsered by NASA, that supplies resources for understanding our world and the world above. Topics include earth science, heliophysics, the planets, astrophysics and much more. There is also an educator page! Nobel Laueate Listings and Stories Nobel Laueate Listings and Stories See the official site for the Nobel Prize, and read biographies about all of the Nobel Laureates, and there life changing discoveries and accomplishments.

395

Three-dimensional structure of human chromatin accessibility complex hCHRAC by electron microscopy  

SciTech Connect

ATP-dependent chromatin remodeling complexes modulate the dynamic assembly and remodeling of chromatin involved in DNA transcription, replication, and repair. There is little structural detail known about these important multiple-subunit enzymes that catalyze chromatin remodeling processes. Here we report a three-dimensional structure of the human chromatin accessibility complex, hCHRAC, using single particle reconstruction by negative stain electron microscopy. This structure shows an asymmetric 15 x 10 x 12 nm disk shape with several lobes protruding out of its surfaces. Based on the factors of larger contact area, smaller steric hindrance, and direct involvement of hCHRAC in interactions with the nucleosome, we propose that four lobes on one side form a multiple-site contact surface 10 nm in diameter for nucleosome binding. This work provides the first determination of the three-dimensional structure of the ISWI-family of chromatin remodeling complexes.

Hu, M.; Hainfeld, J.; Zhang, Y.-B.; Qian, L.; Brinas, R. P.; Kuznetsova, L.

2008-12-01T23:59:59.000Z

396

Surface Integrity  

Science Conference Proceedings (OSTI)

...inclusions introduced Plastically deformed debris as a result of grinding Voids, pits, burrs, or foreign material inclusions in surface Metallurgical Transformation of phases Grain size and distribution Precipitate size and distribution Foreign inclusions in material Twinning Recrystallization...

397

Programmable surfaces  

E-Print Network (OSTI)

Robotic vehicles walk on legs, roll on wheels, are pulled by tracks, pushed by propellers, lifted by wings, and steered by rudders. All of these systems share the common character of momentum transport across their surfaces. ...

Sun, Amy (Amy Teh-Yu)

2012-01-01T23:59:59.000Z

398

Surface Analysis  

DOE Green Energy (OSTI)

In the Surface Analysis group, within the National Center for Photovoltaic's Measurements and Characterization Division, we use surface analytical techniques help to determine the chemical, elemental, and molecular composition, and electronic structure of material surfaces and interfaces. The properties of the surface and outer few micrometers of a material often control the electrical, chemical, or mechanical properties of that material--hence, this region is of extreme importance. Our techniques use ions, electrons, and X-ray or ultraviolet photons in high vacuum to probe surfaces and interfaces of a material. We map the elemental and chemical composition of specimens, study impurities and grain boundaries, gather bonding and chemical-state information, measure surface electronic properties, and perform depth profiles to determine doping and elemental distributions. We have analyzed a wide range of materials, including photovoltaics, microelectronics, polymers, and biological specimens. We work collaboratively with you to solve materials- and device-related R&D problems. This sheet describes our major technique capabilities.

Not Available

2006-06-01T23:59:59.000Z

399

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Improved Surface Emissivities Derived from Multispectral Satellite Data Improved Surface Emissivities Derived from Multispectral Satellite Data Over the ARM SGP Smith, W.L., Jr., Minnis, P., and Young, D.F., NASA Langley Research Center Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Surface emissivity is an important parameter for many remote sensing applications but is difficult to determine because it requires an accurate specification of the surface skin temperature. Because of this, laboratory estimates of the emissivity of pure surfaces are often relied on which generally do not adequately simulate the Earth's natural surfaces as seen from a satellite imager in space. A technique has been developed to derive surface emissivity from clear-sky, multispectral satellite data for three infrared channels (3.9 or 3.7, 10.8 and 12.0 um) common to many of today's

400

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Simulation of the Annual Cycle of Surface Albedo for SHEBA Simulation of the Annual Cycle of Surface Albedo for SHEBA Schramm, J.L., and Curry, J.A., University of Colorado Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting A single-column ice thickness distribution model is used to simulate the annual cycle of sea ice, snow and surface radiation characteristics over the Surface Heat Budget of the Arctic Ocean (SHEBA). The model is forced using surface flux data obtained at SHEBA. This poster focuses on the simulated surface albedo and the principal factors that determine it (snow and melt ponds). By comparing the model simulations with SHEBA observations, an assessment of our current parameterizations of snow, melt ponds and surface albedo is given. Some improvements to our model parameterizations have already been made based upon the comparison with

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Lipids in NanotechnologyChapter 2 Surface Active Lipids as Encapsulation Agents and Delivery Vehicles  

Science Conference Proceedings (OSTI)

Lipids in Nanotechnology Chapter 2 Surface Active Lipids as Encapsulation Agents and Delivery Vehicles Food Science Health Nutrition Biochemistry Processing eChapters Food Science & Technology Health - Nutrition - Biochemistry Proce

402

Science Thems Scientific Integration Through Innovation SCIENCE  

NLE Websites -- All DOE Office Websites (Extended Search)

Scientific Scientific Integration Through Innovation SCIENCE THEMES Science Themes focus EMSL's research direction and capability decisions. They help define and direct both the collection of user research projects accepted via EMSL's user proposal process and the development of its key capabilities made available to users, with an eye toward enhancing scientific progress in the areas of environmental molecular science most critical to DOE and the nation. Each individual Science Theme emphasizes drivers important to a field of science, and as a strong family, the themes share significant overlap and linked areas of common scientific interest. Thus, the scope of a research project in EMSL may impact all three Science Themes: Biological Interactions and Dynamics - Developing a quantitative, systems-

403

Swept source optical coherence microscopy for pathological assessment of cancerous tissues  

E-Print Network (OSTI)

Optical coherence microscopy (OCM) combines optical coherence tomography (OCT) with confocal microscopy and enables depth resolved visualization of biological specimens with cellular resolution. OCM offers a suitable ...

Ahsen, Osman Oguz

2013-01-01T23:59:59.000Z

404

X-ray Interface Science at Advanced Photon Source: New Sector...  

NLE Websites -- All DOE Office Websites (Extended Search)

will serve a diverse community with interests in catalysis, oxide film growth, geochemistry, surface physics, nano-science, tribology, electrochemistry and so on. Attendees,...

405

NREL: Energy Sciences - Chemical and Nanoscale Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Nanoscale Science Nanoscale Science Learn about our research staff including staff profiles, publications, and contact information. The primary goal of the Chemical and Nanoscale Science Group, within NREL's Chemical and Materials Science Center, is to understand photoconversion processes in nanoscale, excitonic photoconversion systems, such as semiconductor quantum dots, molecular dyes, conjugated molecules and polymers, nanostructured oxides, and carbon nanotubes. Closely associated with this goal are efforts to gain an understanding of how to use chemistry and physical tools to control and maximize the photoconversion process. The innovative chemistry and physics that evolve from these fundamental studies are used on a number of applied projects, maximizing the benefits from these discoveries.

406

Jefferson Lab Science Series - Space Shuttle Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Atlantis in the Chesapeake? Previous Video (Atlantis in the Chesapeake?) Science Series Video Archive Next Video (Mechanical Properties of Soda Cans) Mechanical Properties of Soda...

407

NREL: Energy Sciences - Computational Materials Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Version Computational Materials Science Illustration of molecular structure. Overall shape is a somewhat canted diamond, with a grid of small green balls connected in either a...

408

Materials Science and Technology Division - Physical Sciences...  

NLE Websites -- All DOE Office Websites (Extended Search)

Powered by Space Radioisotope Power Systems Energy.Gov Office of Nuclear Energy - Space Power Systems NASA Cassini- Huygens Mission to Saturn NASA Curosity - Mars Science...

409

Science Education Programs | Neutron Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

What are Neutrons Why Research with Neutrons Graduate & Post-doctoral Programs Student & Teacher Programs Science Forum Neutron Scattering Tutorials Kids' Corner News and Awards...

410

Scanning transmission electron microscopy of gate stacks with HfO2 dielectrics and TiN electrodes  

E-Print Network (OSTI)

Scanning transmission electron microscopy of gate stacksEELS) in scanning transmission electron microscopy were usedWe use scanning transmission electron microscopy (STEM)

Agustin, Melody P.; Fonseca, Leo R. C.; Hooker, Jacob C.; Stemmer, Susanne

2005-01-01T23:59:59.000Z

411

Scanning Transmission Electron Microscopy Investigations of Complex Oxides  

NLE Websites -- All DOE Office Websites (Extended Search)

Scanning Transmission Electron Microscopy Investigations of Complex Oxides Scanning Transmission Electron Microscopy Investigations of Complex Oxides Monday, May 23, 2011 - 3:30pm SSRL Conference room 137-322 Professor Tom Vogt, NanoCenter & Department of Chemistry, University of South Carolina High-Angle-Annular-Dark-Field/Scanning Transmission Electron Microscopy (HAADF/STEM) is a technique uniquely suited for detailed studies of the structure and composition of complex oxides. The HAADF detector collects electrons which have interact inelastically with the potentials of the atoms in the specimen and therefore resembles the better known Z2 (Z is atomic number) Rutherford scattering. One class of important catalysts consists of bronzes based on pentagonal {Mo6O21} building units; these include Mo5O14 and Mo17O47. In the last 20 years, new materials doped with

412

Open Source Scanning Probe Microscopy Control Software package GXSM  

SciTech Connect

GXSM is a full featured and modern scanning probe microscopy (SPM) software. It can be used for powerful multidimensional image/data processing, analysis, and visualization. Connected to an instrument, it is operating many different flavors of SPM, e.g., scanning tunneling microscopy and atomic force microscopy or, in general, two-dimensional multichannel data acquisition instruments. The GXSM core can handle different data types, e.g., integer and floating point numbers. An easily extendable plug-in architecture provides many image analysis and manipulation functions. A digital signal processor subsystem runs the feedback loop, generates the scanning signals, and acquires the data during SPM measurements. The programmable GXSM vector probe engine performs virtually any thinkable spectroscopy and manipulation task, such as scanning tunneling spectroscopy or tip formation. The GXSM software is released under the GNU general public license and can be obtained via the internet.

Zahl, P.; Wagner, T.; Moller, R.; Klust, A.

2010-05-01T23:59:59.000Z

413

Scanning-tunneling-microscopy studies of disilane adsorption and pyrolytic growth on Si(100)-(2x1)  

SciTech Connect

Scanning tunneling microscopy has been employed to study the adsorption of disilane (Si{sub 2}H{sub 6}) and pyrolytic growth on Si(100)-(2{times}1) at various temperatures. Room-temperature exposures result in a random distribution of dissociation fragments on the surface. Formation of anisotropic monohydride islands and denuded zones as well as island coarsening is observed at higher temperatures. The results are strikingly similar to those reported for growth by molecular-beam epitaxy using pure Si, even though different surface reactions are involved in these two growth processes.

Lin, D.; Hirschorn, E.S.; Chiang, T. (Department of Physics and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States)); Tsu, R.; Lubben, D.; Greene, J.E. (Department of Materials Science, Coordinated Science Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States) Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States))

1992-02-15T23:59:59.000Z

414

Chemistry and materials science progress report, FY 1994  

SciTech Connect

Research is reported in the areas of surface science, fundamentals of the physics and processing of metals, energetic materials, transactinide materials and properties and other indirectly related areas of weapons research.

NONE

1995-07-01T23:59:59.000Z

415

Sustainable Energy Science and Engineering Center Solar Thermal Conversion  

E-Print Network (OSTI)

Sustainable Energy Science and Engineering Center Solar Thermal Conversion Major Functions: · Solar #12;Sustainable Energy Science and Engineering Center Solar Thermal Conversion Solar energy a surface is heated by a certain flux of incident solar energy is determined by the balance of incident

Krothapalli, Anjaneyulu

416

Science Teacher Professionalism  

NLE Websites -- All DOE Office Websites (Extended Search)

Position Statement Position Statement Principles of Professionalism for Science Educators Introduction Today's science educators play central roles in educating, inspiring, and guiding students to become responsible scientifically literate citizens. Therefore, it is essential that teachers of science uphold the highest ethical standards of the profession to earn the respect, trust, and confidence of students, parents, school leadership, colleagues, and other members of the community. The National Science Teachers Association (NSTA) establishes the following expectations and principles to guide the professional conduct of all preK-16 teachers of science, including preservice, novice, and experienced educators. Quality science instruction is an interdependent process that requires the active participation

417

Genome Science/Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Science & Innovation » Science & Innovation » Science & Engineering Capabilities » Bioscience: Bioenergy, Biosecurity, and Health » Environmental Microbiology » Genome Genome Science/Technologies Los Alamos using cutting-edge sequencing, finishing, and analysis, impact valuable genomic data. Get Expertise Cheryl Kuske DOE BER Biological System Science Division Program Manager Email Srinivas Iyer Bioscience Group Leader Email Momchilo Vuyisich Bioenergy and Biomedical Sciences Email Rebecca McDonald Bioscience Communications Email State-of-the art technology and extensive genomics expertise Protein research Read caption + Los Alamos National Laboratory graduate student, Patricia Langan, changes the properties of a green fluorescent protein in order to create new fluorescent protein variants.

418

CONTENTS: KAIST Science  

E-Print Network (OSTI)

04 12 14 18 #12;#12;CONTENTS: 04 12 14 17 18 22 24 26 28 32 34 35 36 37 40 KAIST Science Vol.4 #12;4 KAIST Science #12;2009 Vol. 4 5 #12;6 KAIST Science #12;2009 Vol. 4 7 #12;8 KAIST Science #12;2009 Vol. 4 9 #12;10 KAIST Science #12;2009 Vol. 4 11 #12;12 KAIST Science Dream New Future #12;2009 Vol. 4 13

Chang, Sukbok

419

NREL: Energy Sciences - Junyi Zhu  

NLE Websites -- All DOE Office Websites (Extended Search)

Junyi Zhu Junyi Zhu Research Associate Photo of Junyi Zhu Phone: (303) 384-6294 Email: junyi.zhu@nrel.gov At NREL Since: 2009 Dr. Zhu joined NREL in Sep. 2009 as a postdoctoral researcher in the Computational Materials Science Team. He received his B.A. in physics from the Beijing University, China, and gained his Ph.D. in materials science and engineering in 2009 at University of Utah, under the supervision of Prof. Feng Liu and Prof. G. B. Stringfellow. He is experienced in modeling and simulating of surface related problems, strain and stress effects, and doping in semiconductor materials. Research Interests Doping properties in semiconductors and insulators Stress induced effects Thermal energy storage materials Selected Publications Zhu, J.; Wei, S.-H. (2011). "Tuning doping site and type by strain:

420

NREL: Energy Sciences - Bing Huang  

NLE Websites -- All DOE Office Websites (Extended Search)

Bing Huang Bing Huang Postdoctoral Researcher Photo of Bing Huang Phone: (303) 384-6465 Email: Bing.Huang@nrel.gov At NREL Since: 2010 Dr. Huang joined the Computational Materials Science Team at NREL in 2010. He received his Ph.D. in physics from Tsinghua University, Beijing, China, in 2010 under the supervision of Prof. Wenhui Duan. His background is in solid-state physics and materials science based on first-principles electronic and transport calculations. Until now, he has published 20-plus peer-reviewed papers with a total citation of approximately 350 times. Research Interests Low dimensional systems, such as nanotubes, nanowires and graphene. Physical and chemical properties of surfaces, interfaces and superlattices. Mechanical properties and stabilities of low dimensional systems.

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

NREL: Energy Sciences - Pawel Zawadzki  

NLE Websites -- All DOE Office Websites (Extended Search)

Pawel Zawadzki Pawel Zawadzki Postdoctoral Researcher Phone: (303) 384-6444 Email: pawel.zawadzki@nrel.gov At NREL Since: 2012 Dr. Pawel Zawadzki joined the Chemical and Materials Science team at NREL in 2012 as a Postdoctoral Researcher. He is a graduate of Warsaw University of Technology and Jules Verne University. He received his Ph.D. in Physics from the Technical University of Denmark, where he worked on first-principles photocatalysis. Research Interests Amorphous materials Thin-film solar cells Photocatalysis Materials for energy storage and conversion Selected Publications Zawadzki P.; Laursen A. B.; Jacobsen K. W.; Dahl S.; Rossmeisl J. (2012). "Oxidative trends of TiO2 - hole trapping at anatase and rutile surfaces." Energy & Environmental Science (Advance Article:2012); Accessed November

422

NREL: Energy Sciences - Lin Simpson  

NLE Websites -- All DOE Office Websites (Extended Search)

Lin Simpson Lin Simpson Senior Scientist Photo of Lin Simpson Phone: (303) 384-6625 Email: lin.simpson@nrel.gov At NREL Since: 2005 Lin Simpson has a broad background in research, development, and program management. This includes extensive experience in nanotechnology, materials science, physics, and surface science. At NREL, he was the director of the Department of Energy's Hydrogen Sorption Center of Excellence and performs associated advanced materials development and testing. Previously, Dr. Simpson was the Manager of Advanced Programs at ITN Energy Systems, Inc., where he planned, implemented, and managed R&D activities to produce the next generation of enabling technologies for a broad range of commercial applications in technology areas that included: nanotechnology,

423

Submicrometre-Resolution Polychromatic Three-dimensional X-ray Microscopy  

Science Conference Proceedings (OSTI)

The ability to study the structure, microstructure and evolution of materials with increasing spatial resolution is fundamental to achieving a full understanding of the underlying science of materials. Polychromatic three-dimensional X-ray microscopy (3DXM) is a recently developed nondestructive diffraction technique that enables crystallographic phase identification, determination of local crystal orientations, grain morphologies, grain interface types and orientations, and in favorable cases direct determination of the deviatoric elastic strain tensor with submicrometre spatial resolution in all three dimensions. With the added capability of an energy-scanning incident beam monochromator, the determination of absolute lattice parameters is enabled, allowing specification of the complete elastic strain tensor with three- dimensional spatial resolution. The methods associated with 3DXM are described and key applications of 3DXM are discussed, including studies of deformation in single-crystal and polycrystalline metals and semiconductors, indentation deformation, thermal grain growth in polycrystalline aluminium, the metal insulator transition in nanoplatelet VO 2 , interface strengths in metal matrix composites, high-pressure science, Sn whisker growth, and electromigra- tion processes. Finally, the outlook for future developments associated with this technique is described.

Larson, Ben C [ORNL; Levine, Lyle E. [National Institute of Standards and Technology (NIST)

2013-01-01T23:59:59.000Z

424

?? / Kagaku / ?? /Ky?ri: Science  

E-Print Network (OSTI)

question when considering science and technology in Japanese?? /Kagaku / ?? /Ky?ri: Science Tsukahara T?go Translationto incorporate and develop science and technology from the

Tsukahara, T?go

2012-01-01T23:59:59.000Z

425

News & Awards | Neutron Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Awards Events and Conferences Supporting Organizations Neutron Science Home | Science & Discovery | Neutron Science | News and Awards SHARE News and Awards 1-6 of 6 Results...

426

Clean Energy | More Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

sciences, advanced materials, neutron sciences, nuclear sciences, and high-performance computing, and brings multidisciplinary teams together to address key issues. That...

427

Reactor Technology | Nuclear Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Research Areas Fuel Cycle Science & Technology Fusion Nuclear Science Isotope Development and Production Nuclear Security Science & Technology Nuclear Systems Modeling, Simulation...

428

Berkeley Lab Science Articles Archive  

NLE Websites -- All DOE Office Websites (Extended Search)

History of the Laboratory Human Genome & DNA Research Life Sciences Materials Sciences Medical & Risk-related Research Nuclear Science Physics Reports on Distinguished Lecturers...

429

Brookhaven Women In Science (BWIS)  

NLE Websites -- All DOE Office Websites (Extended Search)

Career Day Promoting Careers for Women in Science Women in Science (BWIS) hosts an annual High School Career Day to promote professional opportunities in science to local...

430

Science Education at Jefferson Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

Education Privacy and Security Notice Science Education Teacher Resources Student Zone Games and Puzzles Science Cinema Programs and Events Search Science Education As a...

431

The Data Science Education Dilemma  

E-Print Network (OSTI)

and compute information. Science (New York, N.Y. ), 332(a National Center for Data Science Education as a placebring together people from science, industry, and education

Finzer, William

2013-01-01T23:59:59.000Z

432

ADTSC Science Highlights: ADTSC: LANL  

NLE Websites -- All DOE Office Websites (Extended Search)

publications are shown below: Click on the image below to view the publication. 2013 Science Highlights ADTSC Science Highlights 2013 LAUR 13-20839 2012 Science Highlights ADTSC...

433

Plant Science Graduates Spring 2011 Bachelor of Science in Plant Sciences  

E-Print Network (OSTI)

Plant Science Graduates Spring 2011 Bachelor of Science in Plant Sciences Joshua Paul Baker, Old Dale Wallace, Centerville Master of Science Reginald Jason Millwood, Plant Sciences Kara Lee Warwick, Plant Sciences Undergraduate Degrees, Summer Term 2011 Henry Joseph Cope, III, Plant Sciences David

Tennessee, University of

434

LANSCE | Lujan Center | Science Thrust Areas  

NLE Websites -- All DOE Office Websites (Extended Search)

Science Thrust Areas Science Thrust Areas User research at the Lujan Center is focused in four science thrust areas. Each has a contact person who is available to discuss proposed experiments and to provide advice on the appropriate instrument and instrument scientist, available sample environments, and other details for planned experiments. Lujan Center instrument scientists welcome questions and discussions about new experiments and are happy to provide guidance for proposal development. New users are encouraged to contact the appropriate instrument scientist before submitting a proposal. Primary Instruments and Contacts: Surfaces and Interfaces Rex Hjelm - Principal Contact Neutron reflectivity and small angle scattering probe interfaces, surfaces, defects, and their influence on material properties and functionality.

435

Highly uniform step and terrace structures on SiC(0001) surfaces  

Science Conference Proceedings (OSTI)

Highly uniform step and termination structures on 4H- and 6H-SiC(0001) surfaces have been prepared via moderate annealing in disilane. Atomic force microscopy and dark-field low-energy electron microscopy imaging indicate single-phase terminations separated ...

J. Sun; J. B. Hannon; R. M. Tromp; K. Pohl

2011-07-01T23:59:59.000Z

436

An atomic view of surface diffusion on metal surfaces  

SciTech Connect

Investigations of surface diffusion and cluster nucleation by field ion microscopy have provided a considerable amount of physical insight concerning the fundamental interactions that control dynamical processes on surfaces. The investigations rely not only on the FIM`s ability to resolve and track individual atoms on a surface, but also its ability to manipulate the number of adatoms and the size of clusters by the process of field desorption. Results of the investigations are surprising. Whereas metal atom diffusion was once thought to be a simple hopping process, FIM experiments have revealed new mechanisms for atom transport. Whereas cluster nucleation was once thought to be an aggregation process dependent only upon pairwise interactions between atoms, FIM investigations have shown that long-range and many body interactions can make non-negligible contributions to the overall process. By providing a brief overview of the experimental methods used in FIM surface diffusion studies and discussing a few selected applications, I hope to have conveyed some of the rich history as well as the current excitement associated with FIM investigations of dynamical processes on surfaces.

Kellogg, G.L.

1994-08-01T23:59:59.000Z

437

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

7 Science Team Meeting 7 Science Team Meeting 1997 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Seventh Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-1997, March 1997 San Antonio, Texas For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. Poster abstracts are not available online for this year. However, if you would like to request a copy of a specific poster abstract, please contact the Web Administrator. A Comparison of Integrated Water Vapor Sensors: WVIOP-96 J.C. Liljegren, E.R. Westwater, and Y. Han A Comparison of Observed Clear-Sky Surface Irradiance with

438

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Science Team Meeting 3 Science Team Meeting 2003 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-2003, April 2003 Broomsfield, Colorado For proper viewing, extended abstracts should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A 20-year Data Set of Downwelling Longwave Flux at the Arctic Surface from TOVS Satellite Data Francis, J.A., Schweiger, A., and Key, J. A Comparison of Aerosol Scattering Parameters Obtained by Ground-Based Remote Sensing and In-situ Profile Flights*

439

Physical Sciences 2007 Science & Technology Highlights  

SciTech Connect

The Physical Sciences Directorate applies frontier physics and technology to grand challenges in national security. Our highly integrated and multidisciplinary research program involves collaborations throughout Lawrence Livermore National Laboratory, the National Nuclear Security Administration, the Department of Energy, and with academic and industrial partners. The Directorate has a budget of approximately $150 million, and a staff of approximately 350 employees. Our scientists provide expertise in condensed matter and high-pressure physics, plasma physics, high-energy-density science, fusion energy science and technology, nuclear and particle physics, accelerator physics, radiation detection, optical science, biotechnology, and astrophysics. This document highlights the outstanding research and development activities in the Physical Sciences Directorate that made news in 2007. It also summarizes the awards and recognition received by members of the Directorate in 2007.

Hazi, A U

2008-04-07T23:59:59.000Z

440

External Science Review Report of the External Science  

E-Print Network (OSTI)

1 External Science Review Report of the External Science Review Committee The Nature Conservancy and Design: Lee Meinicke Jonathan Adams Design and Layout: Naomi Nickerson #12;3 External Science Review............................................................................................................................... 10 The Challenge of Changing Conservation and Changing Science

Power, Mary Eleanor

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

DOE New Jersey Regional High School Science Bowl! NO SCIENCE...  

NLE Websites -- All DOE Office Websites (Extended Search)

2, 2014 (All day) Science On Saturday DOE New Jersey Regional High School Science Bowl NO SCIENCE ON SATURDAY LECTURE DUE TO THE NEW JERSEY REGIONAL SCIENCE BOWL COMPETITION,...

442

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

The Surface Shortwave Radiation Budget in the ECMWF Forecast System The Surface Shortwave Radiation Budget in the ECMWF Forecast System Morcrette, J.-J., European Centre for Medium-Range Weather Forecasts, United Kingdom Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The surface shortwave radiation (SSR) produced by the ECMWF forecast system since 1989 is studied with reference to the various versions of the shortwave radiation scheme. For the latest 6-spectral interval version, model SSR is compared with surface radiation measurements for recent periods, available as part of the Baseline Surface Radiation Network (BSRN), Surface Radiation Network (SURFRAD), and Atmospheric Radiation Measurement (ARM) programs. Comparisons on one-hour basis are emphasized to allow discrepancies to be more easily linked to differences between model

443

ARM - Key Science Questions  

NLE Websites -- All DOE Office Websites (Extended Search)

govScienceKey Science Questions govScienceKey Science Questions Science Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) ARM Science Team Meetings User Meetings Annual Meetings of the Atmospheric System Research (ASR) Science Team and Fall Working Groups Accomplishments Read about the 20 years of accomplishments (PDF, 696KB) from the ARM Program and user facility. Performance Metrics ASR Metrics 2009 2008 2007 2006 Key Science Questions The role of clouds and water vapor in climate change is not well understood; yet water vapor is the largest greenhouse gas and directly affects cloud cover and the propagation of radiant energy. In fact, there may be positive feedback between water vapor and other greenhouse gases. Carbon dioxide and other gases from human activities slightly warm the

444

Science DMZ for ALS  

NLE Websites -- All DOE Office Websites (Extended Search)

ALS ALS About ESnet Overview ESnet Staff Governance Our Network Case Studies OSCARS Case Studies Science DMZ Case Studies Science DMZ CU Science DMZ Penn State & VTTI Science DMZ NOAA Science DMZ NERSC Science DMZ ALS Multi-facility Workflow LCLS ESnet Strategic Plan ESnet Organizational Chart ESnet History Science Requirements Careers Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Science DMZ for ALS Many beamline scientists at Berkeley Lab's Advanced Light Source (ALS) are or will be experiencing slower network speeds because of instrument upgrades. These new instruments, or more specifically detectors, are

445

Science Friday Pick  

NLE Websites -- All DOE Office Websites (Extended Search)

Friday Videos are a "YouTube (tm)" for science news. Each week, the staff of Science Friday chooses the best video to be featured as the "Pick of the Week", which is then featured...

446

ORISE: Science Education Programs  

NLE Websites -- All DOE Office Websites (Extended Search)

Science Education Programs The U.S. Department of Energy (DOE) and more than a dozen other federal agencies rely on the Oak Ridge Institute for Science and Education (ORISE) to...

447

NP Science Network Requirements  

E-Print Network (OSTI)

Process of Science Data Set Size ? Centralized processing tomicro- DSTs, reducing data-set size by a factor of five,Anticipated Network Needs Data Set Size Process of Science

Dart, Eli

2013-01-01T23:59:59.000Z

448

Science@WIPP  

NLE Websites -- All DOE Office Websites (Extended Search)

At the dawn of discovery ... Science@WIPP The deep geologic repository at WIPP is more than a place to dispose of transuranic (TRU) waste its also a science laboratory....

449

Fermilab Science Education Office  

NLE Websites -- All DOE Office Websites (Extended Search)

let the webmaster know if you cannot see it. Welcome to the website of the Fermilab Science Education Office. Click on the different audience tabs to find science education...

450

LIPID SCIENCE … AFNS 500  

Science Conference Proceedings (OSTI)

LIPID SCIENCE – AFNS 414 (Undergraduate Student Course Outline) Winter Semester 2008 University of Alberta Department of Agricultural, Food and Nutritional Science Instructor: Dr. Randall J. Weselake Lecture: Tuesday, Thursday; 1

451

science_series_map  

NLE Websites -- All DOE Office Websites (Extended Search)

Science Series in CEBAF Center * The Science Series begins at 7:00 PM and typically ends near 8:00 PM * Park in the CEBAF Center parking lot * Enter CEBAF Center through the south...

452

Science Serving Sustainability  

NLE Websites -- All DOE Office Websites (Extended Search)

Science Goal 8: Science Serving Sustainability Maintaining the conditions of a building improves the health of not only the surrounding ecosystems, but also the well-being of its...

453

Educational Computer Science Games  

NLE Websites -- All DOE Office Websites (Extended Search)

Computer Science Games Do you have a great computer science game? Please click our Ideas page. Featured Games: Alice provided by CarnegieMellon Alice provided by CarnegieMellon...

454

Neutron Science Forum | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Science Forum SHARE Science Forum Find out more in the 3rd CNMS-SNS Research Forum flyer. Our education programs aim to develop a stimulating environment for discussion,...

455

Phase Contrast Microscopy with Soft and Hard X-rays  

E-Print Network (OSTI)

Calibration ­ Uses up part of dynamic range · Solution: ­ Soft x-rays: Back side Illumination ­ Hard xPhase Contrast Microscopy with Soft and Hard X-rays Using a Segmented Detector Benjamin Hornberger ­ Phase Contrast 101 · A Segmented Detector for Hard X-ray Microprobes ­ Segmented Silicon Chip ­ Charge

Homes, Christopher C.

456

Graduate Study Food Science  

E-Print Network (OSTI)

Guide to Graduate Study Field of Food Science and Technology Cornell University #12;Field of Food Science and Technology DE P A R T M E N T O F FO O D SC I E N C E A N D TE C H N O L O G Y Mission Science represents the application of the basic sciences, biotechnology, and engineering to the production

Walter, M.Todd

457

Chemical Sciences Division - CSD  

NLE Websites -- All DOE Office Websites (Extended Search)

CSD Chemical Sciences Division CSD Organization Contact List Search Other Links Research Areas Research Highlights Organization Contacts Publications Awards Employment...

458

Computer Sciences Corporation  

Science Conference Proceedings (OSTI)

Computer Sciences Corporation. NVLAP Lab Code: 200426-0. Address and Contact Information: 7459A Candlewood Road ...

2013-08-09T23:59:59.000Z

459

Climate Science Overview  

Science Conference Proceedings (OSTI)

NIST Home > Climate Science Overview. NIST Greenhouse Gas Measurements and Climate Research Program Overview. Earth's climate is ...

2010-07-06T23:59:59.000Z

460

Search Science Education  

NLE Websites -- All DOE Office Websites (Extended Search)

Search Science Education at Jefferson Lab Send us your suggestions and we'll see what we can do Loading...

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Titanium Science & Technology  

Science Conference Proceedings (OSTI)

Titanium Science & Technology. Presented by: F.H. (Sam) Froes, Institute for Materials & Advanced Processes, University of Idaho ...

462

Entertainment Tech & science  

E-Print Network (OSTI)

Health Tech & science Science Space Gadgets Internet Wireless Games Security Innovation Travel Browse Learn more about RSS Technology & science Innovation sponsored by Page 1 of 3Eye spy: Scientists develop simply bend it, those materials are brittle like a ceramic bowl. They break," Huang said in a telephone

Rogers, John A.

463

Science and the Public A Review of Science  

E-Print Network (OSTI)

Science and the Public A Review of Science Communication and Public Attitudes to Science in Britain Office of Science and Technology #12;Foreword The Office of Science and Technology and the Wellcome Trust have jointly sponsored this research to help science communicators think about the information needs

Rambaut, Andrew

464

Science Career & Cooperative Education Burke Science Building Room 127  

E-Print Network (OSTI)

Science Career & Cooperative Education Burke Science Building Room 127 www.science event. Visit the SCCE website to find event dates and details: www.science.mcmaster.ca/scce Attend a Co visit: www.science.mcmaster.ca/scce Enroll in SCIENCE 2C00 to learn the skills for career success

Hitchcock, Adam P.

465

Science (BSc and MSci) College of Science & Engineering  

E-Print Network (OSTI)

Science (BSc and MSci) College of Science & Engineering: School of Chemistry School of Computing Science School of Geographical & Earth Sciences School of Mathematics & Statistics School of Physics & Astronomy School of Psychology College of Medicine, Veterinary & Life Sciences: School of Life Sciences

Guo, Zaoyang

466

UCL Science Library Map Engineering  

E-Print Network (OSTI)

UCL Science Library Map Floor 4 Engineering Engineering Periodicals Guter Collection Sta Training Room Floor 3 Chemistry Computer Science Geology Geosciences Periodicals History of Science Maths Maths Periodicals Physical Sciences Periodicals Physics Computer Cluster Group Study Area Information Library

Crawford, Ian

467

New Science for Chemicals Policy  

E-Print Network (OSTI)

of the State-of-the-Science of Endocrine Disruptors (WHO,461, 472 (2009). 17. NRC, Science and Decisions: AdvancingPOLICYFORUM SCIENCE AND REGULATION New Science for Chemicals

2009-01-01T23:59:59.000Z

468

Dr Jane Zhu | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Jane Zhu Jane Zhu Materials Sciences and Engineering (MSE) Division MSE Home About Staff Listings/Contact Information What's New Research Areas Scientific Highlights Reports and Activities Principal Investigators' Meetings BES Home Staff Listings/Contact Information Dr. Jane Zhu Print Text Size: A A A RSS Feeds FeedbackShare Page Zhu Program Manager Electron and Scanning Probe Microscopies Materials Sciences and Engineering Division Office of Basic Energy Sciences SC-22.2/Germantown Building, Rm F-411 U.S. Department of Energy 1000 Independence Avenue, SW Washington, D.C. 20585-1290 E-Mail:Jane.Zhu@science.doe.gov Phone: (301) 903-3811 Fax: (301) 903-9513 Dr. Jane G. Zhu is the program manager of the Electron and Scanning Probe Microscopies (formerly known as Structure and Composition of Materials)

469

Effect of Surface Roughness of 45S Bioactive Glass on the ...  

Science Conference Proceedings (OSTI)

Their adhesion and proliferation are determined by fluorescent microscopy. ... Improving the Resistance of Ceramic Surfaces to Biofilm Formation ... Sol-Gel Synthesis of Bio-Active Nanoporous Sodium Zirconate Coated on 316L Stainless

470

The Promise of Urban Science  

Science Conference Proceedings (OSTI)

The Promise of Urban Science. Purpose: ... Speakers: Steven E. Koonin Director NYU Center for Urban Science and Progress. Details: ...

2013-08-19T23:59:59.000Z

471

NIST Forensic Science -- Digital Evidence  

Science Conference Proceedings (OSTI)

... Sign up to receive news about NIST Forensic Science. *Email Address. ... NIST Forensic Science -- Digital Evidence. Digital ...

2013-09-13T23:59:59.000Z

472

Standard and High Speed Atomic Force Microscopy of Porous ...  

Science Conference Proceedings (OSTI)

Symposium, Frontiers of Materials Science: Fundamentals of Porous ... insight into material performance due to the nanoscale topographic and/or property mapping ... Separately, for human tooth cross sections measured in liquid, a range of ...

473

THE ELECTRON MICROSCOPY OF HYDROCARBON PRODUCTION IN PARTHENIUM ARGENTATUM (GUAYULE)  

E-Print Network (OSTI)

other drawbacks. First, the fusion reactors currently underproblem of its own. the fusion reactor makes the structuralFusion research (II): Detailed Science, 19l, 38. and small terns reactor

Bauer, T.E.

2010-01-01T23:59:59.000Z

474

New Science on the Open Science Grid  

SciTech Connect

The Open Science Grid (OSG) includes work to enable new science, new scientists, and new modalities in support of computationally based research. There are frequently significant sociological and organizational changes required in transformation from the existing to the new. OSG leverages its deliverables to the large scale physics experiment member communities to benefit new communities at all scales through activities in education, engagement and the distributed facility. As a partner to the poster and tutorial at SciDAC 2008, this paper gives both a brief general description and some specific examples of new science enabled on the OSG. More information is available at the OSG web site: www.opensciencegrid.org.

Pordes, Ruth; Altunay, Mine; Avery, Paul; Bejan, Alina; Blackburn, Kent; Blatecky, Alan; Gardner, Rob; Kramer, Bill; Livny, Miron; McGee, John; Potekhin, Maxim; /Fermilab /Florida U. /Chicago U. /Caltech /LBL, Berkeley /Wisconsin U., Madison /Indiana U. /Brookhaven /UC, San Diego

2008-06-01T23:59:59.000Z

475

Nuclear Science & Technology  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Science & Technology Nuclear Science & Technology Nuclear Science & Technology1354608000000Nuclear Science & TechnologySome of these resources are LANL-only and will require Remote Access. /No/ Nuclear Science & Technology Some of these resources are LANL-only and will require Remote Access. Key Resources Databases Organizations Journals Key Resources International Atomic Energy Agency IAEA scientific and technical publications cover areas of nuclear power, radiation therapy, nuclear security, nuclear law, and emergency repose. Search under Publications/Books and Reports for scientific books, standards, technical guides and reports National Nuclear Data Center Nuclear physics data for basic nuclear research and for applied nuclear technologies, operated by Brookhaven.

476

Bioconversion Science & Technology  

NLE Websites -- All DOE Office Websites (Extended Search)

BSD BSD EESD ORNL Bioconversion Science and Technology BioSciences Division Home Resources Publications People BST Students Former Members Links Contact Us Research Areas Production of Fuels and Chemicals Genomes to Life Biofuel Cells Bioprocessing of Fossil Fuels Biotreatment and Bioremediation Jonathan Mielenz, leader of the Bioconversion Science and Technology Group in ORNL's Biosciences Division, is studying a microbe that could prove more cost effective than current methods in transforming cellulose from sources such as switchgrass and poplar trees into ethanol. Bioconversion Science & Technology The Bioconversion Science and Technology group performs multidisciplinary R&D for the Department of Energy's (DOE) relevant applications of bioprocessing, especially with biomass. Bioprocessing combines the

477

BES Science Network Requirements  

Science Conference Proceedings (OSTI)

The Energy Sciences Network (ESnet) is the primary provider of network connectivityfor the US Department of Energy Office of Science (SC), the single largest supporter of basic research in the physical sciences in the United States. In support of the Office ofScience programs, ESnet regularly updates and refreshes its understanding of the networking requirements of the instruments, facilities, scientists, and science programs that it serves. This focus has helped ESnet to be a highly successful enabler of scientific discovery for over 20 years.

Dart, Eli; Tierney, Brian; Dart, Eli; Biocca, A.; Carlson, R.; Chen, J.; Cotter, S.; Dattoria, V.; Davenport, J.; Gaenko, A.; Kent, P.; Lamm, M.; Miller, S.; Mundy, C.; Ndousse, T.; Pederson, M.; Perazzo, A.; Popescu, R.; Rouson, D.; Sekine, Y.; Sumpter, B.; Wang, C.-Z.; Whitelam, S.; Zurawski, J.

2011-02-01T23:59:59.000Z

478

Networks in Cognitive Science  

E-Print Network (OSTI)

Networks of interconnected nodes have long played a key role in cognitive science, from artificial neural networks to spreading activation models of semantic memory. Recently, however, a new Network Science has been developed, providing insights into the emergence of global, system-scale properties in contexts as diverse as the Internet, metabolic reactions or collaborations among scientists. Today, the inclusion of network theory into cognitive sciences, and the expansion of complex systems science, promises to significantly change the way in which the organization and dynamics of cognitive and behavioral processes are understood. In this paper, we review recent contributions of network theory at different levels and domains within the cognitive sciences.

Baronchelli, Andrea; Pastor-Satorras, Romualdo; Chater, Nick; Christiansen, Morten H

2013-01-01T23:59:59.000Z

479

Relative free energies of Si surfaces  

Science Conference Proceedings (OSTI)

Cavities are formed by ion implanting (001) Si with He and annealing at 800?°C to enlarge and to remove the He. Subsequent annealing at 600?°C results in cavities with well?defined facets as seen in [110] cross section with transmission electron microscopy. The most frequently observed facets are {111} planes. A rounded surface is seen about the [001] direction of all cavities

D. M. Follstaedt

1993-01-01T23:59:59.000Z

480

SCIENCE AND IMPLEMENTATION PLAN Introduction  

E-Print Network (OSTI)

SCIENCE AND IMPLEMENTATION PLAN Introduction The cross-cutting review of science and research undertaken by the Government in 2000 identified e-Science as one of three priority research areas, allocating the new industries of the future. The Science Budget defines e-Science as 'science increasingly done

Brierley, Andrew

Note: This page contains sample records for the topic "microscopy surface science" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Materials sciences programs, fiscal year 1994  

Science Conference Proceedings (OSTI)

The Division of Materials Sciences is located within the DOE in the Office of Basic Energy Sciences. The Division of Materials Sciences is responsible for basic research and research facilities in strategic materials science topics of critical importance to the mission of the Department and its Strategic Plan. Materials Science is an enabling technology. The performance parameters, economics, environmental acceptability and safety of all energy generation, conversion, transmission and conservation technologies are limited by the properties and behavior of materials. The Materials Sciences programs develop scientific understanding of the synergistic relationship amongst the synthesis, processing, structure, properties, behavior, performance and other characteristics of materials. Emphasis is placed on the development of the capability to discover technologically, economically, and environmentally desirable new materials and processes, and the instruments and national user facilities necessary for achieving such progress. Materials Sciences sub-fields include physical metallurgy, ceramics, polymers, solid state and condensed matter physics, materials chemistry, surface science and related disciplines where the emphasis is on the science of materials. This report includes program descriptions for 458 research programs including 216 at 14 DOE National Laboratories, 242 research grants (233 for universities), and 9 Small Business Innovation Research (SBIR) Grants. The report is divided into eight sections. Section A contains all Laboratory projects, Section B has all contract research projects, Section C has projects funded under the SBIR Program, Section D describes the Center of Excellence for the Synthesis and Processing of Advanced Materials and E has information on major user facilities. F contains descriptions of other user facilities; G, a summary of funding levels; and H, indices characterizing research projects.

NONE

1995-04-01T23:59:59.000Z

482

Educational Material Science Games  

NLE Websites -- All DOE Office Websites (Extended Search)

Material Science Games Material Science Games Do you have a great material science game? Please click our Ideas page. Featured Games: >KS2 Bitsize BBC - Materials KS2 Bitsize BBC - Materials Sponsored by the BBC, K2S Bitsize offers tons of free online science games including a section on materials. Learn about the changes in materials, changing states, heat, rocks, soils, solids, liquids, gases, and much more. Science Kids - Properties of Materials Science Kids - Properties of Materials Learn about the properties of materials as you experiment with a variety of objects in this great science activity for kids. Discover the interesting characteristics of materials; are they flexible, waterproof, strong or transparent? Characteristics of Materials - BBC Schools Characteristics of Materials - BBC Schools

483

Manhattan Project: Science  

Office of Scientific and Technical Information (OSTI)

Science Science In the Laboratory Particle Accelerators and Other Technologies The Atom and Atomic Structure Nuclear Physics Bomb Design and Components Radioactivity Science and technology of the Manhattan Project Science PLEASE NOTE: The Science pages are not yet available. Links to the pages listed below and to the left will be activated as content is developed. Select topics relating to the science and technology of the Manhattan Project have been grouped into the categories listed to the left. A quick overview of scientific topics useful for understanding the Manhattan Project can be obtained by reading the summary pages for each of the categories, located in the left navigation bar. Each summary page also has a listing of all the subtopics included within that category. For a complete menu of all science pages, see the comprehensive list of topics below.

484

Committee on Science  

Office of Scientific and Technical Information (OSTI)

Committee on Science Committee on Science SHERWOOD BOEHLERT, CHAIRMAN Ralph M. Hall, Texas, Ranking Democrat www.house.gov/science October 9, 2001 Press Contacts: Heidi Mohlman Tringe (Heidi.Tringe@mail.house.gov) Jeff Donald (Jeffrey.Donald@mail.house.gov) (202)225-4275 BOEHLERT, GRUCCI TO URGE SWIFT CONFIRMATION OF SCIENCE ADVISOR WASHINGTON, DC -- Today, House Science Committee Chairman Sherwood Boehlert (R-NY23) and Committee member Felix J. Grucci (R-NY1) will call for the swift confirmation of Presidential Science Advisor nominee Dr. John H. Marburger. The Senate Commerce Committee has scheduled a nomination hearing for this afternoon, and Boehlert and Grucci have been invited to testify. Dr. Marburger was nominated by President Bush this summer to serve as the Director of the White House Office of Science and Technology Policy (OSTP).

485

BNL | Plant Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Plant Sciences Plant Sciences The Plant Sciences group's goal is to understand the principles underlying carbon capture, conversion, and storage in living systems; and develop the capability to model, predict and optimize these processes in plants and microorganisms. Staff Members John Shanklin Jason Candreva Jilian Fan Hui Liu Qin Liu Edward Whittle Xiaohong Yu Dax Fu Jin Chai Chang-Jun Liu Yuanheng Cai Mingyue Gou Guoyin Kai Zhaoyang Wei Huijun Yang Kewei Zhang Xuebin Zhang Jörg Schwender Jordan Hay Inga Hebbelmann Hai Shi Zhijie Sun Changcheng Xu Chengshi Yan Zhiyang Zhai Plant Sciences Contact John Shanklin, (631)344-3414 In the News No stories available Funding Agencies DOE Basic Energy Sciences Bayer CropScience The Biosciences Department is part of the Environment and Life Sciences Directorate at Brookhaven National Laboratory

486

EMSL: Science: Science of Interfacial Phenomena  

NLE Websites -- All DOE Office Websites (Extended Search)

of DOE and society. The importance of interfaces has been highlighted in the "DOE BER Strategic Plan for Research at the Interface of the Biological and Physical Sciences" and at...

487

Instrument Series: Microscopy Ultra-High Vacuum, Variable- Temperature...  

NLE Websites -- All DOE Office Websites (Extended Search)

phase transitions, chemisorption, diffusion, and desorption Surface characterization of advanced materials - studying elemental and compound semiconductors, layered materials...

488

ARM - Surface Aerosol Observing System  

NLE Websites -- All DOE Office Websites (Extended Search)

FacilitiesSurface Aerosol Observing System FacilitiesSurface Aerosol Observing System AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 Data Operations AMF Fact Sheet Images Contacts AMF Deployments Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011 Steamboat Springs, Colorado, 2010 Graciosa Island, Azores, 2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 Surface Aerosol Observing System The ARM Mobile Facility (AMF) is equipped to quantify the interaction between clouds and aerosol particles. A counter-flow virtual impactor (CVI) is used to selectively sample cloud drops. The CVI takes advantage of the

489

Science, Computational Science and Computer Science: At a D. E. Stevenson  

E-Print Network (OSTI)

Science, Computational Science and Computer Science: At a Crossroads D. E. Stevenson Department of Computer Science Clemson University Clemson, SC 29634­1906 (803) 656­5880 or steve@cs.clemson.edu August 16, 1993 Abstract We describe computational science as an inter­ disciplinary approach to doing science

Hallstrom, Jason

490

Science/Fusion Energy Sciences FY 2011 Congressional Budget Fusion Energy Sciences  

E-Print Network (OSTI)

Science/Fusion Energy Sciences FY 2011 Congressional Budget Fusion Energy Sciences Funding Profile FY 2010 Current Appropriation FY 2011 Request Fusion Energy Sciences Science 163,479 +57,399 182, Fusion Energy Sciences 394,518b +91,023 426,000 380,000 Public Law Authorizations: Public Law 95

491

Science/Fusion Energy Sciences FY 2007 Congressional Budget Fusion Energy Sciences  

E-Print Network (OSTI)

Science/Fusion Energy Sciences FY 2007 Congressional Budget Fusion Energy Sciences Funding Profile Adjustments FY 2006 Current Appropriation FY 2007 Request Fusion Energy Sciences Science,182 Total, Fusion Energy Sciences........... 266,947b 290,550 -2,906 287,644 318,950 Public Law

492

Exploring nanomagnetism with soft x-ray microscopy  

SciTech Connect

Magnetic soft X-ray microscopy images magnetism in nanoscale systems with a spatial resolution down to 15nm provided by state-of-the-art Fresnel zone plate optics. X-ray magnetic circular dichroism (X-MCD) is used as element-specific magnetic contrast mechanism similar to photoemission electron microscopy (PEEM), however, with volume sensitivity and the ability to record the images in varying applied magnetic fields which allows to study magnetization reversal processes at fundamental length scales. Utilizing a stroboscopic pump-probe scheme one can investigate fast spin dynamics with a time resolution down to 70 ps which gives access to precessional and relaxation phenomena as well as spin torque driven domain wall dynamics in nanoscale systems. Current developments in zone plate optics aim for a spatial resolution towards 10nm and at next generation X-ray sources a time resolution in the fsec regime can be envisioned.

Fischer, P.; Kim, D.-H.; Mesler, B.L.; Chao, W.; Sakdinawat,A.E.; Anderson, E.H.

2006-10-30T23:59:59.000Z

493

CFN Operations and Safety Awareness (COSA) Checklist Electron Microscopy Facility  

NLE Websites -- All DOE Office Websites (Extended Search)

Electron Microscopy Facility Electron Microscopy Facility Building 735 This COSA form must be completed for all experimenters working in the CFN and must be submitted to the CFN User Office for badge access. CFN Safety Awareness Policy: Each user must be instructed in the safe procedures in CFN related activities. CFN Facility Laboratory personnel shall keep readily available all relevant instructions and safety literature. Employee/Guest Name Life/Guest Number Department/Division ES&H Coordinator/Ext. Facility Manager COSA Trainer Guest User Staff USER ADMINISTRATION Checked in at User Administration and has valid BNL ID badge Safety Approval Form (SAF) approved. Training requirements completed (Indicate additional training specified in SAF or ESR in lines provided below):

494

Characterization of polysilicon films by Raman spectroscopy and transmission electron microscopy: A comparative study  

SciTech Connect

Samples of chemically-vapor-deposited micrometer and sub-micrometer-thick films of polysilicon were analyzed by transmission electron microscopy (TEM) in cross-section and by Raman spectroscopy with illumination at their surface. TEM and Raman spectroscopy both find varying amounts of polycrystalline and amorphous silicon in the wafers. Raman spectra obtained using blue, green and red excitation wavelengths to vary the Raman sampling depth are compared with TEM cross-sections of these films. Films showing crystalline columnar structures in their TEM micrographs have Raman spectra with a band near 497 cm{sup {minus}1} in addition to the dominant polycrystalline silicon band (521 cm{sup {minus}1}). The TEM micrographs of these films have numerous faulted regions and fringes indicative of nanometer-scale silicon structures, which are believed to correspond to the 497cm{sup {minus}1} Raman band.

Tallant, D.R.; Headley, T.J.; Medernach, J.W. [Sandia National Labs., Albuquerque, NM (United States); Geyling, F. [SEMATECH, Austin, TX (United States)

1993-11-12T23:59:59.000Z

495

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Mapping of Surface Reflectance over the Southern Great Plains Region from Mapping of Surface Reflectance over the Southern Great Plains Region from Multiple Satellites Trishchenko, A.P.(a), Li, Z. (a,b), and Park, W. (a), Canada Centre for Remote Sensing, Ottawa, Canada (a), Now at ESSIC, Department of Meteorology, College Park (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The ground-based ARM observations are limited to a handful of locations sparsely distributed in the South Great Plains (SGP). Mapping of surface narrow and broadband albedos are necessary for modeling and remote sensing studies to better describe the spatial variability of surface boundary conditions. In this study, we present surface narrowband and broadband reflectance, as well as the normalized difference vegetation index over the

496

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Numerical Tests of the Cloud-Surface Interaction Based Broken-Cloud Field Numerical Tests of the Cloud-Surface Interaction Based Broken-Cloud Field Optical Depth Retrieval: Sensitivity to Surface Albedo, Droplet Phase Function, Aerosol, and Instrument Noise Beaulne, A.(a), Barker, H.W.(b), Blanchet, J.P.(a), Pavloski, C.F.(c), Clothiaux, E.E.(c), and Marshak, A.(d), Universite du Quebec a Montreal (a), Environment Canada (b), The Pennsylvania State University (c), NASA-GSFC (d) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The algorithm proposed by Barker and Marshak for inferring optical depth of broken clouds using surface radiometric data has been subject to several sensitivity tests. These include the impacts of uncertainties in specification of effective local surface albedo, droplet phase function,

497

Earth, Space Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Earth, Space Sciences Earth, Space Sciences /science-innovation/_assets/images/icon-science.jpg Earth, Space Sciences National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors. Climate, Ocean and Sea Ice Modeling (COSIM)» Earth A team of scientists is working to understand how local changes in hydrology might bring about major changes to the Arctic landscape, including the possibility of a large-scale carbon release from thawing permafrost. Bryan Travis, an expert in fluid dynamics, is author of the Mars global hydrology numerical computer model, or MAGHNUM, used for calculating heat and fluid transport phenomena. (MAGHNUM was previously

498

NEWTON: Rules of Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Rules of Science Rules of Science Name: Steven Status: other Grade: 12+ Location: WA Country: USA Date: Spring 2012 Question: What are the hard-and-fast rules of science? Are there any? How does science avoid becoming fiction? Replies: Interesting question. Since the question posed refers to some generic 'science', I would offer these few thoughts.... Science (to me) involves careful, precise observation of some natural or man-made phenomenon, accurately and objectively capturing the observation, honestly and objectively sharing of the captured data, fair and objective analysis of the captured data, and fair, honest, and objective efforts to test and thereby replicate the data in the interest of adding the gathered information to the ever-growing body of gathered, analyzed, tested and replicated knowledge we accept as the nearest thing to "fact" we know. Collection of the observed components of the phenomenon with integrity can help us to make predictions of future similar and dissimilar events

499

National Security, Weapons Science  

NLE Websites -- All DOE Office Websites (Extended Search)

National Security, Weapons Science National Security, Weapons Science /science-innovation/_assets/images/icon-science.jpg National Security, Weapons Science National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors. Dual-Axis Radiographic Hydrodynamic Test Facility (DARHT) The Dual-Axis Radiographic Hydrodynamic Test Facility at LANL is part of the DOE's stockpile stewardship program. It uses two large X-ray machines to record three-dimensional interior images of materials. In most experiments, materials (including plutonium) undergo hydrodynamic shock to simulate the implosion process in nuclear bombs and/or the effects of severe hydrodynamic stress. The tests are described as "full-scale mockups

500

Science Vocabulary Hangman Game  

NLE Websites -- All DOE Office Websites (Extended Search)

Vocabulary Hangman Vocabulary Hangman Welcome to Science Vocabulary Hangman! The computer will randomly pick a term used in science. Discover the word the computer has picked by guessing which letters are in it. Each incorrect guess you make causes the atom man to decay. Solve the puzzle before the atom man completely decays! Attention Teachers!! Add your own vocabulary words for your class to use! If you are reading this, your browser is NOT running JavaScript. JavaScript MUST be enabled for this section of our site to work. Once you have turned JavaScript on, reload this page and this warning will go away. Please select the question sets you wish to use: General Sets BEAMS Vocabulary Words (94) 5th Grade Science (150)* 5th Grade Science #2 (175)* 6th Grade Science (256) More 6th Grade Science (282)