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Note: This page contains sample records for the topic "glass curtain walls" 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.


1

Unitised Curtain Walls  

Science Journals Connector (OSTI)

Unitised curtain walling was developed to overcome the problems associated with the installation of stick systems (see Chapter 7) and to reduce the on-site installation time. It consists of large panels, usual...

2009-01-01T23:59:59.000Z

2

Stick-System Curtain Walls  

Science Journals Connector (OSTI)

Curtain walls can be divided in two main types according to the system of fabrication and installation: stick systems and unitised panels. The traditional curtain-wall construction is the stick system, where m...

2009-01-01T23:59:59.000Z

3

Using three dimensional silicone ``boots`` to solve complex remedial design problems in curtain walls  

SciTech Connect (OSTI)

Stick system curtain wall leak problems are frequently caused by water entry at the splice joints of the curtain wall frame and failure of the internal metal joinery seals. Remedial solutions involving occupied buildings inevitably face the multiple constraints of existing construction and business operations not present during the original curtain wall construction. In most cases, even partial disassembly of the curtain wall for internal seal repairs is not feasible. Remedial solutions which must be executed from the exterior of the curtain wall often involve wet-applied or preformed sealant tape bridge joints. However, some of the more complex joints cannot be repaired effectively or economically with the conventional bridge joint. Fortunately, custom fabricated three-dimensional preformed sealant boots are becoming available to address these situations. This paper discusses the design considerations and the selective use of three-dimensional preformed boots in sealing complex joint geometry that would not be effective with the conventional two-dimensional bridge joint.

Chen, Y.J. [AIA, Inc., San Francisco, CA (United States)

1998-12-31T23:59:59.000Z

4

Hollow porous-wall glass microspheres for hydrogen storage  

DOE Patents [OSTI]

A porous wall hollow glass microsphere is provided having a diameter range of between 1 to 200 microns, a density of between 1.0 to 2.0 gm/cc, a porous-wall structure having wall openings defining an average pore size of between 10 to 1000 angstroms, and which contains therein a hydrogen storage material. The porous-wall structure facilitates the introduction of a hydrogen storage material into the interior of the porous wall hollow glass microsphere. In this manner, the resulting hollow glass microsphere can provide a membrane for the selective transport of hydrogen through the porous walls of the microsphere, the small pore size preventing gaseous or liquid contaminants from entering the interior of the hollow glass microsphere.

Heung, Leung K. (Aiken, SC); Schumacher, Ray F. (Aiken, SC); Wicks, George G. (Aiken, SC)

2010-02-23T23:59:59.000Z

5

Energy Saving Curtain.  

E-Print Network [OSTI]

?? This paper presents the energy saving curtains, in order to make the consumers be more aware of the energy efficiency of the energy saving… (more)

Zou, Fan

2008-01-01T23:59:59.000Z

6

Beautify Your Windows and Glass Walls.  

E-Print Network [OSTI]

-utside? How do your dqkrie outside of your house? 2 IlnKY color affect , Coloor, De~kn and Tex When choosing draperies to har- monize with a room, consider the room, proportions, exposure, view, walls, floors, furnishings, accessories...

Tompkins, Charlotte

1961-01-01T23:59:59.000Z

7

Sydney opera house glass walls: Colour measurement and control  

Science Journals Connector (OSTI)

One of the architectural requirements of the tinted laminated glass used in the construction of the Sydney Opera House glass walls was that it should be uniform in colour relative to an initially accepted colour standard. As the glass was manufactured in small batches over a two year period, stringent controls were needed to maintain the necessary colour quality of the laminate. The procedures adopted to check uniformity of colour are described and results are given of colorimetric analyses carried out on the colour standards and the production control specimens. The chromaticity data are interpreted in terms of subjective colour discrimination and are shown to be compatible with visual observations of the glass in situ.

J.A. Hooper; M.P. Wassall

1975-01-01T23:59:59.000Z

8

PHITS simulations of the Protective curtain experiment onboard the Service module of ISS: Comparison with absorbed doses measured with \\{TLDs\\}  

Science Journals Connector (OSTI)

Abstract “Protective curtain” was the physical experiment onboard the International Space Station (ISS) aimed on radiation measurement of the dose – reducing effect of the additional shielding made of hygienic water-soaked wipes and towels placed on the wall in the crew cabin of the Service module Zvezda. The measurements were performed with 12 detector packages composed of thermoluminescent detectors (TLDs) and plastic nuclear track detectors (PNTDs) placed at the Protective curtain, so that they created pairs of shielded and unshielded detectors. We simulated the experiment by the general purpose 3D Monte Carlo Particle and Heavy Ion Transport code System (PHITS), as 10 cm-thick water-filled panels housed in a model of the Zvezda module. External radiation environment was modeled using the AP8MIN and ISO-15390 standard models for the trapped proton (TP) and galactic cosmic ray (GCR) spectra, respectively. The absorbed doses were calculated for all detector packages used in the experiment. Comparison of calculated results with experimental data (TLDs) showed good agreement for the total (TP+GCR) absorbed doses. Further, we analyzed the systematic uncertainty introduced by differences in the detector thicknesses used in the simulations from the ones used in the measurements. The reducing effect of the Protective curtain was studied by comparing the calculated absorbed doses in shielded and unshielded detectors separately for the \\{TPs\\} and GCRs. In case of TPs, the reducing effect was larger than 60% and 40% for pairs of detectors located at aluminum wall and at crew cabin window, respectively. In case of GCRs, small shielding effect was observed for detectors located behind the window but for those located behind the aluminum wall, the effect was even opposite: the absorbed doses in the unshielded detectors were about 10% lower than in the shielded ones. This result was confirmed by the depth-dose analysis using rectangular source emitting broad parallel incident particles impinging on the simple geometry composed of aluminum/glass box and water box of variable thickness simulating the spacecraft wall/window and Protective curtain, respectively. The additional dose in the shielded detectors is related to the secondary fragments known as the “wall effect”. However, since GCR contributes by about 30% and 15% only to the total dose in water in shielded and unshielded detectors, respectively, the total shielding effect is high and the Protective curtain is very efficient when it is applied on a spacecraft at low-Earth orbits.

Ond?ej Ploc; Lembit Sihver; Dmitry Kartashov; Vyacheslav Shurshakov; Raisa Tolochek

2013-01-01T23:59:59.000Z

9

Electrostatic curtain studies  

SciTech Connect (OSTI)

This report presents the results of experiments using electrostatic curtains (ESCS) as a transuranic (TRU) contamination control technique. The TRU contaminants included small (micrometer to sub micrometer) particles of plutonium and americium compounds associated with defense-related waste. Three series of experiments were conducted. The first was with uncontaminated Idaho National Engineering Laboratory (INEL) soil, the second used contaminated soil containing plutonium-239 (from a mixture of Rocky Flats Plant contaminated soil and INEL uncontaminated soil), and the third was uncontaminated INEL soil spiked with plutonium-239. All experiments with contaminated soil were conducted inside a glove box containing a dust generator, low volume cascade impactor (LVCI), electrostatic separator, and electrostatic materials. The data for these experiments consisted of the mass of dust collected on the various material coupons, plates, and filters; radiochemical analysis of selected samples; and photographs, as well as computer printouts giving particle size distributions and dimensions from the scanning electron microscope (SEM). The following results were found: (a) plutonium content (pCi/g) was found to increase with smaller soil particle sizes and (b) the electrostatic field had a stronger influence on smaller particle sizes compared to larger particle sizes. The SEM analysis indicated that the particle size of the tracer Pu239 used in the spiked soil experiments was below the detectable size limit (0.5 {mu}m) of the SEM and, thus, may not be representative of plutonium particles found in defense-related waste. The use of radiochemical analysis indicated that plutonium could be found on separator plates of both polarities, as well as passing through the electric field and collecting on LVCI filters.

Meyer, L C

1992-05-01T23:59:59.000Z

10

Porous wall hollow glass microspheres as a medium or substrate for storage and formation of novel materials  

DOE Patents [OSTI]

Porous wall hollow glass microspheres are provided as a template for formation of nanostructures such as carbon nanotubes, In addition, the carbon nanotubes in combination with the porous wall hollow glass microsphere provides an additional reaction template with respect to carbon nanotubes.

Wicks, George G; Serkiz, Steven M.; Zidan, Ragaiy; Heung, Leung K.

2014-06-24T23:59:59.000Z

11

Heat insulation solar glass and application on energy efficiency buildings  

Science Journals Connector (OSTI)

Abstract Building integrated photovoltaics are among the best methods for generating power using solar energy. To promote and respond to the concept of BIPVs, this study developed a type of multi-functional heat insulation solar glass (HISG) that differs from traditional transparent PV modules, providing functions such as heat insulation and self-cleaning in addition to power generation. This study also made thorough preparations for the safety of future HISG installation on curtain walls in large-scale buildings. Furthermore, this study provides a comprehensive discussion regarding the energy-saving performance of HISG and relevant practical applications. Two experimental houses were constructed, which independently employed HISG and single-layer tempered glass. Taiwan's climate was adopted as the environmental condition for the experiment, and the effects of HISG and single-layer tempered glass on indoor temperature variation and the energy consumed by air conditioners and heaters were explored. Related software was also employed to simulate, compare, and verify HISG efficacy.

Chin-Huai Young; Yi-Lin Chen; Po-Chun Chen

2014-01-01T23:59:59.000Z

12

McCurtain County, Oklahoma: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

McCurtain County, Oklahoma: Energy Resources McCurtain County, Oklahoma: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.1481711°, -94.8105955° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":34.1481711,"lon":-94.8105955,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

13

Development of a trielectrode plasma curtain at atmospheric pressure  

SciTech Connect (OSTI)

The development of a nonequilibrium, low-power, trielectrode plasma curtain at atmospheric pressure is presented. The discharge is based on the combination of an ac dielectric barrier discharge with a dc corona discharge in a three electrode system, and can be sustained for large time periods and over interelectrode air gaps up to 20 mm and with an electrode length of {approx}10 cm in the transversal direction. The discharge is composed of a train of streamers, with a repetition frequency in the range 50-200 kHz, and carrying an average current in the range 0.1-0.4 mA. The geometry of the discharge makes it appropriate for gas decontamination.

Zastawny, H.; Artana, G. [Laboratorio de Fluidodinamica, Universidad de Buenos Aires, Av. Paseo Colon 850, 1063 Buenos Aires (Argentina); Sosa, R. [Laboratorio de Fluidodinamica, Universidad de Buenos Aires, Av. Paseo Colon 850, 1063 Buenos Aires (Argentina); Instituto de Fisica del Plasma, CONICET-Dto. de Fisica, FCEN, Universidad de Buenos Aires, Ciudad. Universitaria, Pab. I, 1428 Buenos Aires (Argentina); Grondona, D.; Marquez, A.; Kelly, H. [Instituto de Fisica del Plasma, CONICET-Dto. de Fisica, FCEN, Universidad de Buenos Aires, Ciudad. Universitaria, Pab. I, 1428 Buenos Aires (Argentina)

2008-07-21T23:59:59.000Z

14

Influence of rheology and geometry on the teapot effect of a curtain coater  

Science Journals Connector (OSTI)

The present study investigates the deflection of a liquid sheet forming at the die lip of a slide-fed curtain coater, known as ‘teapot effect’. The influence of the shear-...

H. Döll; D. Gerlach; N. Alleborn…

2009-01-01T23:59:59.000Z

15

Mobile adjustable curtain apparatus for use in room and pillar coal mining ventilation system  

SciTech Connect (OSTI)

A section of brattice is mounted on a centrally-wheeled cart. This brattice has a frame that permits the curtain section to be extended and retracted vertically, in order to reduce its height for movement and to adjust its height for engagement of the mine roof. Hydraulic jacks are used for vertical height adjustment. The upper curtain rod rail of the curtain incorporates a spring that is mounted between some spring-mounted posts. When the curtain is raised against the ceiling, the springs allow the top of the curtain to conform to unevenness in the ceiling level. By preference, the wheels are mounted on a yoke so they can be put down for moving the brattice section, and retracted when the brattice section is in place. Two jacks are additionally provided at the ends of the apparatus for extension against the roof when the cart is in place to act as anti-tipping braces for when the brattice section is extended up against the mine roof.

Baker, P.V.; Vehovic, D.

1984-04-03T23:59:59.000Z

16

Nonlinear Dynamics of Particles Excited by an Electric Curtain  

E-Print Network [OSTI]

The use of the electric curtain (EC) has been proposed for manipulation and control of particles in various applications. The EC studied in this paper is called the 2-phase EC, which consists of a series of long parallel electrodes embedded in a thin dielectric surface. The EC is driven by an oscillating electric potential of a sinusoidal form where the phase difference of the electric potential between neighboring electrodes is 180 degrees. We investigate the one- and two-dimensional nonlinear dynamics of a particle in an EC field. The form of the dimensionless equations of motion is codimension two, where the dimensionless control parameters are the interaction amplitude ($A$) and damping coefficient ($\\beta$). Our focus on the one-dimensional EC is primarily on a case of fixed $\\beta$ and relatively small $A$, which is characteristic of typical experimental conditions. We study the nonlinear behaviors of the one-dimensional EC through the analysis of bifurcations of fixed points. We analyze these bifurcations by using Floquet theory to determine the stability of the limit cycles associated with the fixed points in the Poincar\\'e sections. Some of the bifurcations lead to chaotic trajectories where we then determine the strength of chaos in phase space by calculating the largest Lyapunov exponent. In the study of the two-dimensional EC we independently look at bifurcation diagrams of variations in $A$ with fixed $\\beta$ and variations in $\\beta$ with fixed $A$. Under certain values of $\\beta$ and $A$, we find that no stable trajectories above the surface exists; such chaotic trajectories are described by a chaotic attractor, for which the the largest Lyapunov exponent is found. We show the well-known stable oscillations between two electrodes come into existence for variations in $A$ and the transitions between several distinct regimes of stable motion for variations in $\\beta$.

Owen D. Myers; Junru Wu; Jeffrey S. Marshall

2014-11-10T23:59:59.000Z

17

Heat transfer through a water spray curtain under the effect of a strong radiative source  

E-Print Network [OSTI]

Heat transfer through a water spray curtain under the effect of a strong radiative source P. Boulet - mail Pascal.Boulet@lemta.uhp-nancy.fr Keywords : heat transfer, radiative transfer, vaporization, convection, water spray Abstract Heat transfer inside a participating medium, made of droplets flowing in gas

Paris-Sud XI, Université de

18

glass jewelry  

Science Journals Connector (OSTI)

various personal adornments decorated with glass or made of glass, beads, finger rings, pendants, necklaces,...

2009-01-01T23:59:59.000Z

19

The Influence of Operating Modes, Room Temperature Set Point and Curtain Styles on Energy Consumption of Room Air Conditioner  

E-Print Network [OSTI]

A field investigation was carried out in an office building of Changsha city in winter and summer, the influence of different running modes, curtain styles and room temperature set point on energy consumption of room air conditioner (RAC...

Yu, J.; Yang, C.; Guo, R.; Wu, D.; Chen, H.

2006-01-01T23:59:59.000Z

20

Doping of Glass with Lithium Ion  

Science Journals Connector (OSTI)

Our discovery that the Li+ uptake by the glass walls of the vessels used in the experiments can be used for doping purposes was purely surreptitious. ...

Greg Moakes; Lawrence A. Bottomley; Jiri Janata

2005-01-12T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

Multiple reentrant glass transitions in confined hard-sphere glasses  

E-Print Network [OSTI]

Glass forming liquids exhibit a rich phenomenology upon confinement. This is often related to the effects arising from wall-fluid interactions. Here we focus on the interesting limit where the separation of the confining walls becomes of the order of a few particle diameters. For a moderately polydisperse, densely packed hard-sphere fluid confined between two smooth hard walls, we show via event-driven molecular dynamics simulations the emergence of a multiple reentrant glass transition scenario upon a variation of the wall separation. Using thermodynamic relations, this reentrant phenomenon is shown to persist also under constant chemical potential. This allows straightforward experimental investigation and opens the way to a variety of applications in micro- and nanotechnology, where channel dimensions are comparable to the size of the contained particles. The results are in-line with theoretical predictions obtained by a combination of density functional theory and the mode-coupling theory of the glass transition.

S. Mandal; S. Lang; M. Gross; M. Oettel; D. Raabe; T. Franosch; F. Varnik

2014-06-20T23:59:59.000Z

22

Glass Production  

E-Print Network [OSTI]

Late Bronze Age glasses. Journal of Archaeological Science781 - 789. Turner, W.E.S. 1954 Studies in ancient glassesand glass making processes. Part I: Crucibles and melting

Shortland, Andrew

2009-01-01T23:59:59.000Z

23

silica glass  

Science Journals Connector (OSTI)

...any amorphous, pale yellow to pale green natural silica glass such as moldavite, Libyan Desert glass, contains nearly 98% silica. RI:...

2009-01-01T23:59:59.000Z

24

Development of an energy efficient curtain flame ignition system for sintering of iron ore fines  

Science Journals Connector (OSTI)

Research and Development Centre for Iron and Steel (RDCIS) of Steel Authority of India Limited (SAIL) has developed a 'curtain flame' ignition system for sinter mix ignition. Conventionally, either horizontal fired burners or top fired or a combination of both are used for ignition of sinter mix. These burners big in size but few in number are mounted on a rectangular box type furnace. This is associated with non-uniform heating of sinter mix. In the new system, small capacity burners are installed on the roof across the sinter bed in a single row. Here, the top layer of the sinter bed gets heated by the direct impingement of the flame. This has resulted in reduction in specific fuel gas consumption by more than 30% and savings in refractory consumption. Implementation of the system led to reduction in green house gas (GHG) emission also.

V.T. Selvan; T.S. Reddy; A. Das

2012-01-01T23:59:59.000Z

25

Glass balls  

E-Print Network [OSTI]

There is a building with 100 floors in it, and glass balls, and an integer k with the following property. If one drops a glass ball from the floor number k or higher, ...

26

Venetian glass  

Science Journals Connector (OSTI)

...a term used for imitation pearl made of hollow, iridescent glass, which is filled with wax to increase...

2009-01-01T23:59:59.000Z

27

Glass Structure  

Science Journals Connector (OSTI)

... Structure and Crystallization of Glasses. By WernerVogel. Pp. 246. (Pergamon: Oxford and New York, October 1971. ... account of the experimental work on liquid-liquid separation and nucleation and crystal growth in glasses carried out by the author and his colleagues in the laboratories of VEB Jena ...

R. W. DOUGLAS

1972-04-07T23:59:59.000Z

28

Optical Glass  

Science Journals Connector (OSTI)

... space of time. In the forefront of such vital industries is the manufacture of optical glass. However great the other resources in men and material may be, it would be ... be, it would be quite impossible to wage successful warfare without adequate supplies of optical glass ior binocular field- ...

1919-03-27T23:59:59.000Z

29

Glass Technology  

Science Journals Connector (OSTI)

... WE have received from the Department of Glass Technology, University of Sheffield, a copy of vol. ii. of “Experimental Researches ... that department. The papers included have already appeared in the Journal of the Society of Glass Technology. They range over a somewhat wide field of the ...

1920-08-23T23:59:59.000Z

30

Tempered Glass  

Science Journals Connector (OSTI)

... year (NATURE, vol. xxxi. p. 7). It consists in the production of glass which appears to be of a very homogeneous character and of considerable strength and hardness ... which we propose to refer shortly, is that of keeping the whole body of the glass at a uniform temperature during the operations of heating and cooling—that is to say ...

1885-03-05T23:59:59.000Z

31

Tiny Glass Bubbles With Big Potential | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Tiny Glass Bubbles With Big Potential Tiny Glass Bubbles With Big Potential Tiny Glass Bubbles With Big Potential August 19, 2011 - 12:32pm Addthis SRNL's Porous Walled Hollow Glass Microspheres (which are about half the width of a human hair in diameter) have a network of interconnected pores that enable them to be filled with, hold and release gases and other materials. | Image courtesy of SRNL SRNL's Porous Walled Hollow Glass Microspheres (which are about half the width of a human hair in diameter) have a network of interconnected pores that enable them to be filled with, hold and release gases and other materials. | Image courtesy of SRNL Liisa O'Neill Liisa O'Neill Former New Media Specialist, Office of Public Affairs What are the key facts? SRNL's porous walled glass microspheres allow the potential for

32

Glass Transition in Confined Geometry  

E-Print Network [OSTI]

Extending mode-coupling theory, we elaborate a microscopic theory for the glass transition of liquids confined between two parallel flat hard walls. The theory contains the standard MCT equations in bulk and in two dimensions as limiting cases and requires as input solely the equilibrium density profile and the structure factors of the fluid in confinement. We evaluate the phase diagram as a function of the distance of the plates for the case of a hard sphere fluid and obtain an oscillatory behavior of the glass transtion line as a result of the structural changes related to layering.

Simon Lang; Vitalie Botan; Martin Oettel; David Hajnal; Thomas Franosch; Rolf Schilling

2010-08-23T23:59:59.000Z

33

Glass | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

industry sectors. Industrial Glass Bandwidth Analysis (2007) Documents for historical reference Energy and Environmental Profile of the Glass Industry (2002) Glass Industry...

34

Through a glass darkly  

E-Print Network [OSTI]

Closeup Through a glass darklyThrough a glass darkly James E. Hall Keywords: AKAP2; AQP0;Medicine Closeup Through a glass darkly GLUT1 Glucose

Hall, James E

2012-01-01T23:59:59.000Z

35

Lid heater for glass melter  

DOE Patents [OSTI]

A glass melter having a lid electrode for heating the glass melt radiantly. The electrode comprises a series of INCONEL 690 tubes running above the melt across the melter interior and through the melter walls and having nickel cores inside the tubes beginning where the tubes leave the melter interior and nickel connectors to connect the tubes electrically in series. An applied voltage causes the tubes to generate heat of electrical resistance for melting frit injected onto the melt. The cores limit heat generated as the current passes through the walls of the melter. Nickel bus connection to the electrical power supply minimizes heat transfer away from the melter that would occur if standard copper or water-cooled copper connections were used between the supply and the INCONEL 690 heating tubes.

Phillips, Terrance D. (617 Chestnut Ct., Aiken, SC 29803)

1993-01-01T23:59:59.000Z

36

Wind-tunnel simulation of field dispersion tests (by the U.K. health and safety executive) of water-spray curtains  

Science Journals Connector (OSTI)

Field trials of water-spray curtain tests performed by the (British) Health and Safety Executive and designated by HSE 41 and HSE 46 were modeled at a scale ratio of 1:28.9 in an atmospheric boundary-layer win...

R. N. Meroney; D. E. Neff; G. Heskestad

37

Colored optical glass  

Science Journals Connector (OSTI)

The Lytkarino Optical Glass Factory manufactures various types of colored optical glasses: yellow, orange, and red glasses and glasses that are transparent in the IR region, as well as...

Mogil’naya, L G; Zinov’eva, O B; Firsova, Yu A; Gulyukin, M N

2013-01-01T23:59:59.000Z

38

Loss and modal properties of Ag/AgI hollow glass waveguides  

E-Print Network [OSTI]

-mode transmission is obtained when the thickness of the glass wall is large. These smaller bores, thick wall hollow and industrial applications involving the delivery of CO2 laser radiation, but they have also proven use- ful popular structures is the hollow glass waveguide (HGW) comprised of a silica tube with an inner coating

39

X6.9-CLASS FLARE-INDUCED VERTICAL KINK OSCILLATIONS IN A LARGE-SCALE PLASMA CURTAIN AS OBSERVED BY THE SOLAR DYNAMICS OBSERVATORY/ATMOSPHERIC IMAGING ASSEMBLY  

SciTech Connect (OSTI)

We present rare observational evidence of vertical kink oscillations in a laminar and diffused large-scale plasma curtain as observed by the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory. The X6.9-class flare in active region 11263 on 2011 August 9 induces a global large-scale disturbance that propagates in a narrow lane above the plasma curtain and creates a low density region that appears as a dimming in the observational image data. This large-scale propagating disturbance acts as a non-periodic driver that interacts asymmetrically and obliquely with the top of the plasma curtain and triggers the observed oscillations. In the deeper layers of the curtain, we find evidence of vertical kink oscillations with two periods (795 s and 530 s). On the magnetic surface of the curtain where the density is inhomogeneous due to coronal dimming, non-decaying vertical oscillations are also observed (period ? 763-896 s). We infer that the global large-scale disturbance triggers vertical kink oscillations in the deeper layers as well as on the surface of the large-scale plasma curtain. The properties of the excited waves strongly depend on the local plasma and magnetic field conditions.

Srivastava, A. K. [Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital 263 002 (India); Goossens, M. [Centre for Mathematical Plasma Astrophysics, Department of Mathematics, KU Leuven, Celestijnenlaan 200B, B-3001 Leuven (Belgium)

2013-11-01T23:59:59.000Z

40

A World of Glass  

Science Journals Connector (OSTI)

...This clear molten liquid began to transform agriculture and horticulture. The use of glass houses to promote the precocious growth...enclosed coaches, watch-glasses, lighthouses, and street lighting. The sextant required glass, and the precision chronometer...

Alan Macfarlane; Gerry Martin

2004-09-03T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

A World of Glass  

Science Journals Connector (OSTI)

...transform agriculture and horticulture. The use of glass houses...appeared. Glass cloches and greenhouses improved the cultivation...lighthouses, and street lighting. The sextant required glass...lanterns, lighthouses, and greenhouses, and finally through cameras...

Alan Macfarlane; Gerry Martin

2004-09-03T23:59:59.000Z

42

Plastic Flow in Glass  

Science Journals Connector (OSTI)

...1964 research-article Plastic Flow in Glass D. M. Marsh The classical brittle fracture...account for the mechanical properties of glasses, but the widespread evidence of plastic flow in all glass fracture phenomena even at room temperature...

1964-01-01T23:59:59.000Z

43

CRYSTALLIZATION IN MULTICOMPONENT GLASSES  

SciTech Connect (OSTI)

In glass processing situations involving glass crystallization, various crystalline forms nucleate, grow, and dissolve, typically in a nonuniform temperature field of molten glass subjected to convection. Nuclear waste glasses are remarkable examples of multicomponent vitrified mixtures involving partial crystallization. In the glass melter, crystals form and dissolve during batch-to-glass conversion, melter processing, and product cooling. Crystals often agglomerate and sink, and they may settle at the melter bottom. Within the body of cooling glass, multiple phases crystallize in a non-uniform time-dependent temperature field. Self-organizing periodic distribution (the Liesegnang effect) is common. Various crystallization phenomena that occur in glass making are reviewed.

KRUGER AA; HRMA PR

2009-10-08T23:59:59.000Z

44

Controlled permeation of hydrogen through glass. Final report  

SciTech Connect (OSTI)

Storing hydrogen inside of hollow glass spheres requires that the gas permeate through the glass walls. Hydrogen permeation through glass is relatively slow and the time to charge a sphere or bed of spheres is dependent on many factors. Permeation processes are strongly temperature dependent with behavior that follows an Arrhenius function., Rate is also dependent on the pressure drop driving force across a membrane wall and inversely proportional to thickness. Once filled, glass spheres will immediately begin to leak once the pressure driving force is reversed. Practical systems would take advantage of the fact that keeping the glass at ambient temperatures can minimize outboard leakage even with significant internal pressures. If hydrogen could be loaded and unloaded from glass microspheres with significantly less energy and particularly at near ambient temperature, some of the key barriers to commercializing this storage concept would be broken and further system engineering efforts may make this approach cost-effective. There were two key objectives for this effort. The first was to evaluate the application of hollow glass microspheres for merchant hydrogen storage and distribution and then determine the hydrogen permeation performance required for practical commercial use. The second objective was to identify, through a series of fundamental experiments, a low energy, low temperature field effect that could significantly enhance hydrogen permeation through glass without application of heat. If such an effect could be found, hollow glass microspheres could be much more attractive for hydrogen storage or possibly gas separation applications.

Halvorson, T. [Praxair, Inc., Tonawanda, NY (United States); Shelby, J.E. Jr. [Alfred Univ., NY (United States). Glass Science Lab.

1998-03-01T23:59:59.000Z

45

NEWS & VIEWS Glass dynamics  

E-Print Network [OSTI]

NEWS & VIEWS Glass dynamics Diverging views on glass transition Gregory B. mc.mckenna@ttu.edu T he glass transition is one of the most intriguing phenomena in the world of soft condensed matter. Despite decades of study, many aspects of the behaviour of glass-forming liquids remain elusive

Weeks, Eric R.

46

Glass Cookware Safety  

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

Glass Cookware Safety Glass Cookware Safety Under the wrong conditions, glass cookware can crack, break or shatter. Glass cookware is tempered (heat resistant). However, there are many steps to follow to ensure safe use of glass cookware. Glass Cookware Steps: If the steps are not followed, glass cookware can shatter unexpectedly. shatters, (it looks as if it has exploded) If glass bakeware is chipped, cracked, or scratched, it's time for it to be retired from service. It is more likely to shatter! Don't take glass bakeware directly from the freezer to the oven, or vice versa. Allow the oven to fully preheat before putting glassware inside. Don't add liquid to glassware that is already hot. Cover the bottom of glass bakeware with liquid before cooking meat or vegetables.

47

Wall to Wall Optimal Transport  

E-Print Network [OSTI]

The calculus of variations is employed to find steady divergence-free velocity fields that maximize transport of a tracer between two parallel walls held at fixed concentration for one of two constraints on flow strength: a fixed value of the kinetic energy or a fixed value of the enstrophy. The optimizing flows consist of an array of (convection) cells of a particular aspect ratio Gamma. We solve the nonlinear Euler-Lagrange equations analytically for weak flows and numerically (and via matched asymptotic analysis in the fixed energy case) for strong flows. We report the results in terms of the Nusselt number Nu, a dimensionless measure of the tracer transport, as a function of the Peclet number Pe, a dimensionless measure of the energy or enstrophy of the flow. For both constraints the maximum transport Nu_{MAX}(Pe) is realized in cells of decreasing aspect ratio Gamma_{opt}(Pe) as Pe increases. For the fixed energy problem, Nu_{MAX} \\sim Pe and Gamma_{opt} \\sim Pe^{-1/2}, while for the fixed enstrophy scenario, Nu_{MAX} \\sim Pe^{10/17} and Gamma_{opt} \\sim Pe^{-0.36}. We also interpret our results in the context of certain buoyancy-driven Rayleigh-Benard convection problems that satisfy one of the two intensity constraints, enabling us to investigate how the transport scalings compare with upper bounds on Nu expressed as a function of the Rayleigh number \\Ra. For steady convection in porous media, corresponding to the fixed energy problem, we find Nu_{MAX} \\sim \\Ra and Gamma_{opt} \\sim Ra^{-1/2}$, while for steady convection in a pure fluid layer between free-slip isothermal walls, corresponding to fixed enstrophy transport, Nu_{MAX} \\sim Ra^{5/12} and Gamma_{opt} \\sim Ra^{-1/4}.

Pedram Hassanzadeh; Gregory P. Chini; Charles R. Doering

2014-04-14T23:59:59.000Z

48

ITP Glass: Industrial Glass Bandwidth Analysis Final Report,...  

Broader source: Energy.gov (indexed) [DOE]

Industrial Glass Bandwidth Analysis Final Report, August 2007 ITP Glass: Industrial Glass Bandwidth Analysis Final Report, August 2007 industrialbandwidth.pdf More Documents &...

49

Colloidal Glass Transition Observed in Confinement Carolyn R. Nugent,* Kazem V. Edmond, Hetal N. Patel, and Eric R. Weeks  

E-Print Network [OSTI]

Colloidal Glass Transition Observed in Confinement Carolyn R. Nugent,* Kazem V. Edmond, Hetal N suspension confined between two quasiparallel walls as a model system for glass transitions in confined. For higher volume fraction samples (closer to the glass transition), the onset of confinement effects occurs

Weeks, Eric R.

50

Sol-Clad-Siding and Trans-Lucent-Insulation : curtain wall components for conserving dwelling heat by passive-solar means  

E-Print Network [OSTI]

A prototype for a dwelling heat loss compensator is introduced in this thesis, along with its measured thermal performance and suggestions for its future development. As a heat loss compensator, the Sol-Clad-Siding collects, ...

Iliesiu, Doru

1983-01-01T23:59:59.000Z

51

Glass and Glass Products (2010 MECS)  

Broader source: Energy.gov [DOE]

Manufacturing Energy and Carbon Footprint for Glass Sector (NAICS 3272, 327993) Energy use data source: 2010 EIA MECS (with adjustments) Footprint Last Revised: February 2014

52

Glass Working, Use and Discard  

E-Print Network [OSTI]

Beck, Horace C. 1934 Glass before 1500 BC. Ancient Egypt7 - 21. Cooney, John 1960 Glass sculpture in ancient Egypt.Journal of Glass Studies 2, pp. 10 - 43. 1976 Glass.

Nicholson, Paul

2011-01-01T23:59:59.000Z

53

Chapter 14 - Glass Recycling  

Science Journals Connector (OSTI)

Abstract Glass has established itself as an essential material in our lives. The composition of glass depends on what it is used for, but the majority of glass in circulation is of the soda-lime–silicate type. It is a material that is eminently recyclable, in the sense that it merely needs to be remelted and reformed to produce another glass article. However, glass must be color-sorted and processed to remove contaminants to ensure it is compatible with the product being manufactured. The key benefit of recycling via remelting is the reduced energy demand. However, because differences in color composition can arise between recovered glass and manufacturing output, alternative outlets are also often necessary. This chapter examines both the recycling of glass back into glass manufacture and these alternatives.

Thomas D. Dyer

2014-01-01T23:59:59.000Z

54

Kevin Glass | EMSL  

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

Glass kglass Primary tabs View(active tab) Track Kevin Glass Staff Member Title: Scientist Address: P.O. Box 999 K8-83 City: Richland State: WA Zip Code: 99352 Phone: (509)...

55

DRAFT Glass.indd  

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

FAST FACTS FAST FACTS Glass technology provides a versatile method for safely managing a variety of wastes SRNL has studied the behavior in glass of nearly every element in the Periodic Table Overview Converting waste materials into a stable glass form is a highly effective way of treating and disposing of many types of waste, including some hazardous and radioactive wastes. Vitrifi cation - the immobilization of a material in glass - is

56

MECS 2006- Glass  

Broader source: Energy.gov [DOE]

Manufacturing Energy and Carbon Footprint for Glass (NAICS 3272, 327993) Sector with Total Energy Input, October 2012 (MECS 2006)

57

Wall surveyor project report  

SciTech Connect (OSTI)

A report is made on the demonstration of a first-generation Wall Surveyor that is capable of surveying the interior and thickness of a stone, brick, or cement wall. LLNL`s Micropower Impulse Radar is used, based on emitting and detecting very low amplitude and short microwave impulses (MIR rangefinder). Six test walls were used. While the demonstrator MIR Wall Surveyor is not fieldable yet, it has successfully scanned the test walls and produced real-time images identifying the walls. It is planned to optimize and package the evaluation wall surveyor into a hand held unit.

Mullenhoff, D.J.; Johnston, B.C.; Azevedo, S.G.

1996-02-22T23:59:59.000Z

58

Excess free energy of supercooled liquids at disordered walls  

E-Print Network [OSTI]

Using a novel thermodynamic integration scheme, we compute the excess free energy, $\\gamma$, of a glass-forming, binary Lennard-Jones liquid in contact with a frozen amorphous wall, formed by particles frozen into a similar structure as the liquid. We find that $\\gamma$ is non-zero, becoming negative at low temperature. This indicates that the thermodynamics of the system is perturbed by the effect of the amorphous wall.

Benjamin, Ronald

2014-01-01T23:59:59.000Z

59

Study of the mechanisms of wax prevention in a pipeline with glass inner layer  

Science Journals Connector (OSTI)

The mechanisms of wax prevention in a pipeline with a glass inner layer have been studied by simulating crude oil production by a pump well, and transport of crude oil and formation water in glass and steel tubes in a laboratory. It is clearly demonstrated that the water wetting property of glass and steel is the key factor in controlling the ability of wax to be deposited on the walls of glass and steel tubes. When the water content of crude oils A and B was more than 60%, the oils and formation water flowed as a plug and o/w emulsion, and a stable water film was formed between the oil and the wall of the glass tube. The film prevented the oil being deposited on the wall of the glass tube, consequently, the amount of wax deposited on the wall was reduced. The mechanisms of wax deposition on the wall of glass and steel tubes are molecular diffusion and shear dispersion.

Mingyuan Li; Jianguo Su; Zhaoliang Wu; Yaodong Yang; Shuling Ji

1997-01-01T23:59:59.000Z

60

GlassMelt&Sealing  

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

Glass Melting and Sealing Glass Melting and Sealing Manufacturing Technologies The Manufacturing Science & Technology Center performs process development of glass and glass-ceramic-to-metal seals. Small batches of specialty glass can be melted from reagent grade oxide powders. Glass and glass-ceramic-to-metal seals are made in microprocessor controlled inert atmospheres and are checked for her- meticity after sealing. Sandia's extensive properties database of low melting solder glasses is used to aid in material and processing decisions when making glass-to-glass, ceramic-to-ceramic, and glass-to-ceramic seals. These seals are typically done in air at much lower tem- peratures than glass and glass-to-ceramic seals. Capabilities * Interface with designers and vendors to assure that the most appropriate materi-

Note: This page contains sample records for the topic "glass curtain walls" 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

Nonequilibrium viscosity of glass  

Science Journals Connector (OSTI)

Since glass is a nonequilibrium material, its properties depend on both composition and thermal history. While most prior studies have focused on equilibrium liquid viscosity, an accurate description of nonequilibrium viscosity is essential for understanding the low temperature dynamics of glass. Departure from equilibrium occurs as a glass-forming system is cooled through the glass transition range. The glass transition involves a continuous breakdown of ergodicity as the system gradually becomes trapped in a subset of the available configurational phase space. At very low temperatures a glass is perfectly nonergodic (or “isostructural”), and the viscosity is described well by an Arrhenius form. However, the behavior of viscosity during the glass transition range itself is not yet understood. In this paper, we address the problem of glass viscosity using the enthalpy landscape model of Mauro and Loucks [Phys. Rev. B 76, 174202 (2007)] for selenium, an elemental glass former. To study a wide range of thermal histories, we compute nonequilibrium viscosity with cooling rates from 10?12 to 1012?K/s. Based on these detailed landscape calculations, we propose a simplified phenomenological model capturing the essential physics of glass viscosity. The phenomenological model incorporates an ergodicity parameter that accounts for the continuous breakdown of ergodicity at the glass transition. We show a direct relationship between the nonequilibrium viscosity parameters and the fragility of the supercooled liquid. The nonequilibrium viscosity model is validated against experimental measurements of Corning EAGLE XG™ glass. The measurements are performed using a specially designed beam-bending apparatus capable of accurate nonequilibrium viscosity measurements up to 1016?Pa?s. Using a common set of parameters, the phenomenological model provides an accurate description of EAGLE XG™ viscosity over the full range of measured temperatures and fictive temperatures.

John C. Mauro; Douglas C. Allan; Marcel Potuzak

2009-09-30T23:59:59.000Z

62

Diamond turning of glass  

SciTech Connect (OSTI)

A new research initiative will be undertaken to investigate the critical cutting depth concepts for single point diamond turning of brittle, amorphous materials. Inorganic glasses and a brittle, thermoset polymer (organic glass) are the principal candidate materials. Interrupted cutting tests similar to those done in earlier research are Ge and Si crystals will be made to obtain critical depth values as a function of machining parameters. The results will provide systematic data with which to assess machining performance on glasses and amorphous materials

Blackley, W.S.; Scattergood, R.O.

1988-12-01T23:59:59.000Z

63

Viscosity Measurements with Glass  

Science Journals Connector (OSTI)

1 May 1925 research-article Viscosity Measurements with Glass Vaughan H. Stott Edith Irvine D. Turner The Royal Society is collaborating with JSTOR to digitize, preserve...

1925-01-01T23:59:59.000Z

64

Richard Serra - Philip Glass.  

E-Print Network [OSTI]

??In dieser Arbeit soll den Gemeinsamkeiten im Werk von Richard Serra und Philip Glass nachgegangen werden. Ausgehend von der Analyse von Serras Arbeiten werden die… (more)

Vogl, Christiane

2008-01-01T23:59:59.000Z

65

Rare Earth Phosphate Glass and Glass-Ceramic Proton Conductors  

E-Print Network [OSTI]

300-500°C. Doping rare earth phosphate glasses with Ce, andRare Earth Phosphate Glass and Glass-Ceramic Protonconductivity of alkaline-earth doped rare earth phosphate

De Jonghe, Lutgard C.

2010-01-01T23:59:59.000Z

66

ITP Glass: Glass Industry Technology Roadmap; April 2002  

Broader source: Energy.gov [DOE]

Glass is a unique material that has been produced for thousands of years. The glass industry's products are an integral part of the American economy and everyday life. Glass products are used in food and beverage packaging, lighting, communications, etc.

67

Fluidized wall for protecting fusion chamber walls  

DOE Patents [OSTI]

Apparatus for protecting the inner wall of a fusion chamber from microexplosion debris, x-rays, neutrons, etc. produced by deuterium-tritium (DT) targets imploded within the fusion chamber. The apparatus utilizes a fluidized wall similar to a waterfall comprising liquid lithium or solid pellets of lithium-ceramic, the waterfall forming a blanket to prevent damage of the structural materials of the chamber.

Maniscalco, James A. (Danville, CA); Meier, Wayne R. (Livermore, CA)

1982-01-01T23:59:59.000Z

68

Cultivation of Mycoplasmas on Glass  

Science Journals Connector (OSTI)

...Immunology Cultivation of Mycoplasmas on Glass R. H. Purcell J. R. Valdesuso W. L...human origin were successfully cultivated on glass. Complement-fixing (CF) antigens prepared from glass-adherent mycoplasmas were potent, specific...

R. H. Purcell; J. R. Valdesuso; W. L. Cline; W. D. James; R. M. Chanock

1971-02-01T23:59:59.000Z

69

Glass-Making  

Science Journals Connector (OSTI)

... director of Messrs. Pilkington Brothers, Ltd., on “The Making of a Sheet of Glass”. Major Weeks first gave a brief outline of some fundamental scientific considerations, with ... the raw materials are introduced at one end of a continuous furnace and the molten glass withdrawn at the other. The various processes necessary for the manufacture of sheet and ...

1933-12-16T23:59:59.000Z

70

The Glass Research Association  

Science Journals Connector (OSTI)

... widely known that among the industries which have been profoundly influenced by the war the glass and glassware industry of the United Kingdom occupies a foremost place. Not only have ... certain special sections of this industry, previously non-existent in the country, to supply glass and glassware, ...

EDWARD MEIGH

1919-11-13T23:59:59.000Z

71

Glass for Optical Purposes  

Science Journals Connector (OSTI)

... THE importance of an adequate supply of optical glass of all the principal types cannot be overestimated. The improvement of the microscope has ... improvement of the microscope has been and is still retarded for the want of suitable glasses, the construction of large telescopes is limited by the capacity of the glassmaker to ...

S. D. CHALMERS

1914-10-01T23:59:59.000Z

72

Glass for Reflectors  

Science Journals Connector (OSTI)

... "for the 4-foot disc of glass for the Paris reflector, in place of that which has so recently resulted in ... in place of that which has so recently resulted in failure, the St. Gobain Glass Company require twelve months' time to perfect (although, be it remembered, the quality ...

HENRY BESSEMER

1878-01-24T23:59:59.000Z

73

Decorative Glass Processes  

Science Journals Connector (OSTI)

... of a number of processes employed for the purpose of producing architectural decorative work in glass. Beginning with an account of the various kinds of ... . Beginning with an account of the various kinds of glass available for such work, and indulging in a retrospect of ...

W. R.

1909-01-21T23:59:59.000Z

74

Structure of Glass  

Science Journals Connector (OSTI)

... Introduction of certain cations in soda or potash glass contracts or expands the network proportionally to the concentration, each oxide having its own ... constant over a wide range of compositions. The factors are different for soda and potash glasses, but they remain constant when

I. NÁRAY-SZABÓ

1959-03-28T23:59:59.000Z

75

Notes on Glass1  

Science Journals Connector (OSTI)

... A CERTAIN amount of experimental work on glass-ware of various kinds has been carried out recently at the National Physical Laboratory, ... known some of the results. Chemical investigations have for some years been dependent on German glass; the publication of the analyses and of test results may, it is hoped, ...

1915-03-18T23:59:59.000Z

76

Sol-GelGlasses  

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

Sol-Gel Glasses Sol-Gel Glasses Manufacturing Technologies The Manufacturing Science & Technology Center conducts process development and scale-up of ceramic and glass materials prepared by the sol- gel process. Sol-gel processing uses solutions prepared at low temperature rather than high temperature powder processing to make materi- als with controlled properties. A precursor sol-gel solution (sol) is either poured into a mold and allowed to gel or is diluted and applied to a sub- strate by spinning, dipping, spraying, elec- trophoresis, inkjet printing or roll coating. Controlled drying of the wet gel results in either a ceramic or glass bulk part or a thin film on a glass, plastic, ceramic or metal substrate. Sol-gel derived materials have diverse applications in optics, electronics, energy, space, sensors and

77

Glass: Recent Research and Developments  

Science Journals Connector (OSTI)

... THE systematic study of glass and the subject of ... and the subject of glass technology is a field with which the University of Sheffield is particularly associated, Sheffield ...

1956-10-20T23:59:59.000Z

78

Liquid Wall Chambers  

SciTech Connect (OSTI)

The key feature of liquid wall chambers is the use of a renewable liquid layer to protect chamber structures from target emissions. Two primary options have been proposed and studied: wetted wall chambers and thick liquid wall (TLW) chambers. With wetted wall designs, a thin layer of liquid shields the structural first wall from short ranged target emissions (x-rays, ions and debris) but not neutrons. Various schemes have been proposed to establish and renew the liquid layer between shots including flow-guiding porous fabrics (e.g., Osiris, HIBALL), porous rigid structures (Prometheus) and thin film flows (KOYO). The thin liquid layer can be the tritium breeding material (e.g., flibe, PbLi, or Li) or another liquid metal such as Pb. TLWs use liquid jets injected by stationary or oscillating nozzles to form a neutronically thick layer (typically with an effective thickness of {approx}50 cm) of liquid between the target and first structural wall. In addition to absorbing short ranged emissions, the thick liquid layer degrades the neutron flux and energy reaching the first wall, typically by {approx}10 x x, so that steel walls can survive for the life of the plant ({approx}30-60 yrs). The thick liquid serves as the primary coolant and tritium breeding material (most recent designs use flibe, but the earliest concepts used Li). In essence, the TLW places the fusion blanket inside the first wall instead of behind the first wall.

Meier, W R

2011-02-24T23:59:59.000Z

79

Glass, Brian 1 BRIAN DANIEL GLASS, M.A.  

E-Print Network [OSTI]

Glass, Brian 1 BRIAN DANIEL GLASS, M.A. University Department of Psychology, A8000 The University of Categorization and Decision Making, The University of Texas at Austin #12;Glass, Brian 2 Duties include: Programming, constructing, and running experiments, statistical analysis. JOURNAL PUBLICATIONS Glass, B. D

Maddox, W. Todd

80

Glass, Brian 1 BRIAN DANIEL GLASS, M.A.  

E-Print Network [OSTI]

Glass, Brian 1 BRIAN DANIEL GLASS, M.A. University Department of Psychology, A8000 The University Making, The University of Texas at Austin #12;Glass, Brian 2 Duties include: Designing and constructing, constructing, and running experiments, statistical analysis. JOURNAL PUBLICATIONS Glass, B. D., Chotibut, T

Maddox, W. Todd

Note: This page contains sample records for the topic "glass curtain walls" 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

Glass, Brian 1 BRIAN DANIEL GLASS, M.A.  

E-Print Network [OSTI]

Glass, Brian 1 BRIAN DANIEL GLASS, M.A. University Department of Psychology, A8000 The University of Texas at Austin Austin, TX 78712 (512) 232-2883 e-mail: glass@mail.utexas.edu EDUCATION 2006 ­ Cognitive include: Designing and constructing experiments, statistical #12;Glass, Brian 2 analysis, manuscript

Maddox, W. Todd

82

Tokamak reactor first wall  

DOE Patents [OSTI]

This invention relates to an improved first wall construction for a tokamak fusion reactor vessel, or other vessels subjected to similar pressure and thermal stresses.

Creedon, R.L.; Levine, H.E.; Wong, C.; Battaglia, J.

1984-11-20T23:59:59.000Z

83

Super ionic conductive glass  

DOE Patents [OSTI]

An ionically conducting glass for use as a solid electrolyte in a power or secondary cell containing an alkali metal-containing anode and a cathode separated by an alkali metal ion conducting glass having an ionic transference number of unity and the general formula: A.sub.1+x D.sub.2-x/3 Si.sub.x P.sub.3-x O.sub.12-2x/3, wherein A is a network modifier for the glass and is an alkali metal of the anode, D is an intermediate for the glass and is selected from the class consisting of Zr, Ti, Ge, Al, Sb, Be, and Zn and X is in the range of from 2.25 to 3.0. Of the alkali metals, Na and Li are preferred and of the intermediate, Zr, Ti and Ge are preferred.

Susman, Sherman (Park Forest, IL); Volin, Kenneth J. (Fort Collins, CO)

1984-01-01T23:59:59.000Z

84

Great Wall Starbucks  

E-Print Network [OSTI]

along the Great Wall. When you think about it, it's not a bad marketing strategy: the Wall is high, the stairs relentless; what better than an espresso to energize you for the steep climb up? On second thought, make that a double. #ceas #china #tsutsui...

Hacker, Randi; Gatewood, Tyler; Tsutsui, William

2006-03-29T23:59:59.000Z

85

Metallic glass composition  

DOE Patents [OSTI]

A metallic glass alloy that is either iron-based or nickel-based or based on a mixture of iron and nickel, containing lesser amounts of elements selected from the group boron, silicon carbon and phosphorous to which is added an amount of a ductility enhancing element selected from the group cerium, lanthanum, praseodymium and neodymium sufficient to increase ductility of the metallic glass upon annealing.

Kroeger, Donald M. (Knoxville, TN); Koch, Carl C. (Raleigh, NC)

1986-01-01T23:59:59.000Z

86

DWPF GLASS BEADS AND GLASS FRIT TRANSPORT DEMONSTRATION  

SciTech Connect (OSTI)

DWPF is considering replacing irregularly shaped glass frit with spherical glass beads in the Slurry Mix Evaporator (SME) process to decrease the yield stress of the melter feed (a non-Newtonian Bingham Plastic). Pilot-scale testing was conducted on spherical glass beads and glass frit to determine how well the glass beads would transfer when compared to the glass frit. Process Engineering Development designed and constructed the test apparatus to aid in the understanding and impacts that spherical glass beads may have on the existing DWPF Frit Transfer System. Testing was conducted to determine if the lines would plug with the glass beads and the glass frit slurry and what is required to unplug the lines. The flow loop consisted of vertical and horizontal runs of clear PVC piping, similar in geometry to the existing system. Two different batches of glass slurry were tested: a batch of 50 wt% spherical glass beads and a batch of 50 wt% glass frit in process water. No chemicals such as formic acid was used in slurry, only water and glass formers. The glass beads used for this testing were commercially available borosilicate glass of mesh size -100+200. The glass frit was Frit 418 obtained from DWPF and is nominally -45+200 mesh. The spherical glass beads did not have a negative impact on the frit transfer system. The transferring of the spherical glass beads was much easier than the glass frit. It was difficult to create a plug with glass bead slurry in the pilot transfer system. When a small plug occurred from setting overnight with the spherical glass beads, the plug was easy to displace using only the pump. In the case of creating a man made plug in a vertical line, by filling the line with spherical glass beads and allowing the slurry to settle for days, the plug was easy to remove by using flush water. The glass frit proved to be much more difficult to transfer when compared to the spherical glass beads. The glass frit impacted the transfer system to the point that the test apparatus had to be disassembled to dislodge the plugs created in the system.

Adamson, D; Bradley Pickenheim, B

2008-11-24T23:59:59.000Z

87

Cardinal Glass Industries | Open Energy Information  

Open Energy Info (EERE)

Cardinal Glass Industries Jump to: navigation, search Name: Cardinal Glass Industries Place: Eden Prairie, Minnesota Zip: 55344 Product: Minnesota-based glass products maker. The...

88

Glass blowing on a wafer level  

E-Print Network [OSTI]

E. Shelby, Introduction to Glass Science and Technology. :Properties of Corning Glasses [Online]. Available: http://1981. [15] R. H. Doremus, Glass Science. New York: Wiley,

Eklund, E. Jesper; Shkel, Andrei M.

2007-01-01T23:59:59.000Z

89

HLW Glass Waste Loadings  

Broader source: Energy.gov (indexed) [DOE]

HLW HLW Glass Waste Loadings Ian L. Pegg Vitreous State Laboratory The Catholic University of America Washington, DC Overview Overview  Vitrification - general background  Joule heated ceramic melter (JHCM) technology  Factors affecting waste loadings  Waste loading requirements and projections  WTP DWPF  DWPF  Yucca Mountain License Application requirements on waste loading  Summary Vitrification  Immobilization of waste by conversion into a glass  Internationally accepted treatment for HLW  Why glass?  Amorphous material - able to incorporate a wide spectrum of elements over wide ranges of composition; resistant to radiation damage  Long-term durability - natural analogs Relatively simple process - amenable to nuclearization at large  Relatively simple process - amenable to nuclearization at large scale  There

90

Crystalline fragments in glasses  

Science Journals Connector (OSTI)

The nature of tetrahedral molecular fragments is investigated in SiSe2 glasses using the molecular-dynamics method. The glass consists of both edge-sharing (ES) and corner-sharing tetrahedra. The ES tetrahedra are the building blocks of chain-like-molecular fragments. The two-edge-sharing tetrahedra are the nucleus, and corner-sharing configurations provide connecting hinges between fragments. Statistics of rings and fragments reveals that threefold and eightfold rings are most abundant, chainlike fragments that are typically 10–15 Å long occur mostly in eightfold rings, and the longest fragments occur in elevenfold rings.

Giomal A. Antonio; Rajiv K. Kalia; Aiichiro Nakano; Priya Vashishta

1992-04-01T23:59:59.000Z

91

Leaching of Nuclear Waste Glasses  

Science Journals Connector (OSTI)

Resistance to aqueous corrosion is the most important requirement of glasses designed to immobilize high level radioactive wastes. Obtaining a highly durable nuclear waste glass is complicated by the requirement ...

L. L. Hench

1985-01-01T23:59:59.000Z

92

Borosilicate Microporous Glasses for Reverse Osmosis  

Science Journals Connector (OSTI)

The characteristics of microporous borosilicate glasses are described. Glasses with an optimum pore distribution are recommended for production and application.

S. L. Zakharov

2004-05-01T23:59:59.000Z

93

Sources of Weakness in Glass  

Science Journals Connector (OSTI)

...October 1964 research-article Sources of Weakness in Glass C. Gurney The theoretical strength of glass is of the order of 2 to 5 MLb./in.$^2$ At room temperature, common glasses with undamaged surfaces give breaking stresses of about...

1964-01-01T23:59:59.000Z

94

Laboratory Waste Disposal HAZARDOUS GLASS  

E-Print Network [OSTI]

Laboratory Waste Disposal HAZARDOUS GLASS Items that could cut or puncture skin or trash- can without any treatment. Hazardous Glass and Plastic: Items that can puncture, cut or scratch if disposed of in normal trash containers. Pasteur pipettes Other pipettes and tips (glass or plastic) Slides and cover

Sheridan, Jennifer

95

The Color Glass Condensate  

E-Print Network [OSTI]

We provide a broad overview of the theoretical status and phenomenological applications of the Color Glass Condensate effective field theory describing universal properties of saturated gluons in hadron wavefunctions that are extracted from deeply inelastic scattering and hadron-hadron collision experiments at high energies.

F. Gelis; E. Iancu; J. Jalilian-Marian; R. Venugopalan

2010-02-01T23:59:59.000Z

96

Incorporation and distribution of rhenium in a borosilicate glass melt heat treated in a sealed ampoule  

SciTech Connect (OSTI)

We investigated a mass balance of rhenium (used as a surrogate for technetium-99) in a borosilicate glass that was mixed with excess Re source (KReO4) beyond its solubility and heat treated in a vacuum-sealed fused silica ampoule. Distribution of Re in the bulk of the glass, in a salt phase formed on the melt surface, and in condensate material deposited on the ampoule wall was evaluated to understand the Re migration into different phases during the reaction between the molten glass and KReO4. The information gained from this study will contribute to an effort to understand the mechanism of technetium retention in or escape from glass melt during early stages of glass batch melting, which is a goal of the present series of studies.

Kim, Dong-Sang; Schweiger, Michael J.

2013-07-25T23:59:59.000Z

97

BNL | Joseph S. Wall  

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

Joseph S. Wall Joseph S. Wall Emeritus Research Interests Mass mapping of unstained biological molecules with the scanning transmission electron microscope (STEM), particularly assemblies of complexes from subunits of known size and shape. Examples include: Alzheimer's filaments, viral capsids, annelid hemoglobins, hemocyanins, proteases, chaperonins, microtubule proteins, prions and various nucleic acid-protein complexes. Another research area is instrument development involving design and construction of an instrument for low-temperture, energy loss spectroscopy, and elemental mapping at low dose. This is being used to map phosphorus in nucleic acid-protein complexes, phosphorylated proteins and phospholipid structures. He also is director of the Scanning Transmission Electron Microscope STEM

98

Production of glass or glass-ceramic to metal seals with the application of pressure  

DOE Patents [OSTI]

In a process for preparing a glass or glass-ceramic to metal seal comprising contacting the glass with the metal and heat-treating the glass and metal under conditions whereby the glass to metal seal is effected and, optionally, the glass is converted to a glass-ceramic, an improvement comprises carrying out the heat-treating step using hot isostatic pressing.

Kelly, Michael D. (West Alexandria, OH); Kramer, Daniel P. (Dayton, OH)

1987-11-10T23:59:59.000Z

99

Production of glass or glass-ceramic to metal seals with the application of pressure  

DOE Patents [OSTI]

In a process for preparing a glass or glass-ceramic to metal seal comprising contacting the glass with the metal and heat-treating the glass and metal under conditions whereby the glass to metal seal is effected and, optionally, the glass is converted to a glass-ceramic, an improvement comprises carrying out the heat-treating step using hot isostatic pressing.

Kelly, M.D.; Kramer, D.P.

1985-01-04T23:59:59.000Z

100

Analytical Plan for Roman Glasses  

SciTech Connect (OSTI)

Roman glasses that have been in the sea or underground for about 1800 years can serve as the independent “experiment” that is needed for validation of codes and models that are used in performance assessment. Two sets of Roman-era glasses have been obtained for this purpose. One set comes from the sunken vessel the Iulia Felix; the second from recently excavated glasses from a Roman villa in Aquileia, Italy. The specimens contain glass artifacts and attached sediment or soil. In the case of the Iulia Felix glasses quite a lot of analytical work has been completed at the University of Padova, but from an archaeological perspective. The glasses from Aquileia have not been so carefully analyzed, but they are similar to other Roman glasses. Both glass and sediment or soil need to be analyzed and are the subject of this analytical plan. The glasses need to be analyzed with the goal of validating the model used to describe glass dissolution. The sediment and soil need to be analyzed to determine the profile of elements released from the glass. This latter need represents a significant analytical challenge because of the trace quantities that need to be analyzed. Both pieces of information will yield important information useful in the validation of the glass dissolution model and the chemical transport code(s) used to determine the migration of elements once released from the glass. In this plan, we outline the analytical techniques that should be useful in obtaining the needed information and suggest a useful starting point for this analytical effort.

Strachan, Denis M.; Buck, Edgar C.; Mueller, Karl T.; Schwantes, Jon M.; Olszta, Matthew J.; Thevuthasan, Suntharampillai; Heeren, Ronald M.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

Single-Walle 4. Single-Walled Carbon Nanotubes  

E-Print Network [OSTI]

applications, carbon nanotube research is ac- tively being pursued in diverse areas including energy storage105 Single-Walle 4. Single-Walled Carbon Nanotubes Sebastien Nanot, Nicholas A. Thompson, Ji Single-walled carbon nanotubes (SWCNTs) are hol- low, long cylinders with extremely large aspect ratios

Kono, Junichiro

102

Waalbot: An Agile Small-Scale Wall Climbing Robot Utilizing Pressure Sensitive Adhesives  

E-Print Network [OSTI]

and grasping robots cannot climb smooth surfaces like glass or painted structures. To avoid the drawbacksWaalbot: An Agile Small-Scale Wall Climbing Robot Utilizing Pressure Sensitive Adhesives Michael P robot able to navigate on smooth surfaces of any orientation, including vertical and inverted surfaces

Sitti, Metin

103

Mixed polyanion glass cathodes: Iron phosphate vanadate glasses  

SciTech Connect (OSTI)

Mixed polyanion (MP) glasses have been investigated for use as cathodes in lithium ion batteries. MP glass cathodes are similar in composition to theoretically promising crystalline polyanionic (CP) cathodes (e.g., lithium cobalt phosphate, lithium manganese silicate), but with proper polyanion substitution, they can be designed to overcome the key shortcomings of CP cathodes, such as poor electrical conductivity and irreversible phase changes. Iron phosphate/vanadate glasses were chosen as a first demonstration of the MP glass concept. Polyanion substitution with vanadate was shown to improve the intercalation capacity of an iron phosphate glass from almost zero to full theoretical capacity. In addition, the MP glass cathodes also exhibited an unexpected second high-capacity electrochemical reaction. X-ray absorption near-edge structure (XANES) and x-ray diffraction (XRD) of cathodes from cells having different states of charge suggested that this second electrochemical reaction is a glass-state conversion reaction. With a first demonstration established, MP glass materials utilizing an intercalation and/or glass-state conversion reaction are promising candidates for future high-energy cathode research.

Kercher, Andrew K [ORNL; Ramey, Joanne Oxendine [ORNL; Carroll, Kyler J [Massachusetts Institute of Technology (MIT); Kiggans Jr, James O [ORNL; Veith, Gabriel M [ORNL; Meisner, Roberta [Oak Ridge National Laboratory (ORNL); Boatner, Lynn A [ORNL; Dudney, Nancy J [ORNL

2014-01-01T23:59:59.000Z

104

ITP Glass: Industrial Glass Bandwidth Analysis Final Report, August 2007  

Broader source: Energy.gov [DOE]

A guide to determining places in the glass-making process where energy can be saved and means by which energy can be saved.

105

WINDOW 5 Glass Library Update  

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

WINDOW 6 or 7 Glass Library Update WINDOW 6 or 7 Glass Library Update Last update:12/09/13 07:26 PM Automatic IGDB Update Feature in WINDOW 6 and 7 The latest versions of WINDOW 6 and 7 have an automatic IGDB database update function in the Glass Library. When you first open the program, it checks to see if there is an IGDB version later than what you already have installed, and will notify you if there is an update. Then you can download and install the IGDB database, and click on the Update IGDB button in the Glass Library in order to start the automatic update. For older versions of WINDOW 6 and 7 without the automatic IGDB update function bullet How to Check the Current WINDOW5 IGDB Version bullet Updating the Glass Library bullet Problem Updating the Glass Library bullet Discontinued Records or Reused NFRC IDs

106

Compositional threshold for Nuclear Waste Glass Durability  

SciTech Connect (OSTI)

Within the composition space of glasses, a distinct threshold appears to exist that separates "good" glasses, i.e., those which are sufficiently durable, from "bad" glasses of a low durability. The objective of our research is to clarify the origin of this threshold by exploring the relationship between glass composition, glass structure and chemical durability around the threshold region.

Kruger, Albert A. [Pacific Northwest National Lab., Richland, WA (United States); Farooqi, Rahmatullah [Pohang Univ. of Science and Technology, (Korea, Republic of); Hrma, Pavel R. [Pacific Northwest National Lab., Richland, WA (United States), Pohang Univ. of Science and Technology, (Korea, Republic of)

2013-04-24T23:59:59.000Z

107

The GLASS CHAIR Edited by Manuel Heitor  

E-Print Network [OSTI]

The GLASS CHAIR Edited by Manuel Heitor IST Press, 2000 #12;Collaborative Design of... The GLASS the glass chair, but also for the numerous discussions on glass production processes. And last · Carmo Valente Chapter 4. GLASS: BEAUTY WITH STRENGTH Sushil Kumar Mendiratta Chapter 5. The IDEA

Instituto de Sistemas e Robotica

108

Method for heating a glass sheet  

DOE Patents [OSTI]

A method for heating a glass sheet includes the steps of heating a glass sheet to a first predetermined temperature and applying microwave energy to the glass sheet to heat the glass sheet to at least a second predetermined temperature to allow the glass sheet to be formed.

Boaz, Premakaran Tucker (Livonia, MI)

1998-01-01T23:59:59.000Z

109

Color Glass Condensate and Glasma  

E-Print Network [OSTI]

In this talk, I review the Color Glass Condensate theory of gluon saturation, and its application to the early stages of heavy ion collisions.

Francois Gelis

2010-09-01T23:59:59.000Z

110

Glass as a structural material.  

E-Print Network [OSTI]

??Glass can be beautiful and strong, so why is it not used more often as a structural material? Most often the reasoning is because people… (more)

White, Rachel Lynn

2007-01-01T23:59:59.000Z

111

Glass rupture disk  

DOE Patents [OSTI]

A frangible rupture disk and mounting apparatus for use in blocking fluid flow, generally in a fluid conducting conduit such as a well casing, a well tubing string or other conduits within subterranean boreholes. The disk can also be utilized in above-surface pipes or tanks where temporary and controllable fluid blockage is required. The frangible rupture disk is made from a pre-stressed glass with controllable rupture properties wherein the strength distribution has a standard deviation less than approximately 5% from the mean strength. The frangible rupture disk has controllable operating pressures and rupture pressures.

Glass, S. Jill (Albuquerque, NM); Nicolaysen, Scott D. (Albuquerque, NM); Beauchamp, Edwin K. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

112

Efficient Breach Theory Through the Looking Glass  

E-Print Network [OSTI]

in Wonderland and Through the Looking Glass (Signet 1960).Theory Through the Looking Glass such an award a put by theTheory Through the Looking Glass Consider also the hoary

Adler, Barry E.

2007-01-01T23:59:59.000Z

113

Immobilization of Chloroperoxidase on Aminopropyl-Glass  

Science Journals Connector (OSTI)

...Immobilization of Chloroperoxidase on Aminopropyl-Glass Tenshuk A. Kadima Michael A. Pickard...89362 was covalently bound to aminopropyl-glass by using a modification of an established method. Acid-washed glass was derivatized by using aminopropyltriethoxysilane...

Tenshuk A. Kadima; Michael A. Pickard

1990-11-01T23:59:59.000Z

114

Glass Fibre Reinforced Cement and Gypsum Products  

Science Journals Connector (OSTI)

6 October 1970 research-article Glass Fibre Reinforced Cement and Gypsum Products A. J. Majumdar Glass fibre reinforced cements and gypsum plaster...discontinuous and irregular. The dispersion of glass fibre in the matrix is not easy. When chopped...

1970-01-01T23:59:59.000Z

115

Rhenium solubility in borosilicate nuclear waste glass  

E-Print Network [OSTI]

Retention in Hanford LAW Glass - Phase 1 Final Report. VSL-rhenium in borosilicate waste glass as determined by X-rayfor NIST SRM 610–617 Glasses Following ISO Guidelines," 35[

McCloy, John S.

2014-01-01T23:59:59.000Z

116

Refractory Glass Seals for SOFC  

SciTech Connect (OSTI)

One of the critical challenges facing planar solid oxide fuel cell (SOFC) technology is the need for reliable sealing technology. Seals must exhibit long-term stability and mechanical integrity in the high temperature SOFC environment during normal and transient operation. Several different approaches for sealing SOFC stacks are under development, including glass or glass-ceramic seals, metallic brazes, and compressive seals. Among glass seals, rigid glass-ceramics, self-healing glass, and composite glass approaches have been investigated under the SECA Core Technology Program. The U.S. Department of Energy's Pacific Northwest National Laboratory (PNNL) has developed the refractory glass approach in light of the fact that higher sealing temperatures (e.g., 930-1000 degrees C) may enhance the ultimate in-service bulk strength and electrical conductivity of contact materials, as well as the bonding strength between contact materials and adjacent SOFC components, such as interconnect coatings and electrodes. This report summarizes the thermal, chemical, mechanical, and electrical properties of the refractory sealing glass.

Chou, Y. S.; Stevenson, Jeffry W.

2011-07-01T23:59:59.000Z

117

Art and Form in Glass  

Science Journals Connector (OSTI)

... book. The new edition has been brought up to date, the historical section on glass manufacture now concludes with a brief reference to the float process first announced a year ... a year or so ago and the beautiful collection of photographs illustrating the use of glass in buildings has been changed considerably. Many of the photographs are of things which ...

R. W. DOUGLAS

1962-03-24T23:59:59.000Z

118

New Types of Optical Glass  

Science Journals Connector (OSTI)

... IN view of the interest shown in new optical glasses recently produced in Great Britain and in the United States, we wish to summarize ... probable lines of development. Advances in lens design have led to a demand for new glasses with optical properties different from those available hitherto as outlined in a recent paper by ...

W. M. HAMPTON; R. E. BASTICK; W. N. WHEAT

1944-03-04T23:59:59.000Z

119

Structure and Density of Glass  

Science Journals Connector (OSTI)

... SiO2-B2O3 mixed glasses show a linear relation between v and R, which is the number of oxygen ... where the chemical symbols stand for the gram atoms present in a given quantity of glass (for example, 100 gm.) of the respective elements. For SiO2-B2O 3- ...

I. NÁRAY-SZABÓ

1958-01-04T23:59:59.000Z

120

Glass-making in England  

Science Journals Connector (OSTI)

... trouble to look through a catalogue of works in English dealing with the subject of glass will be struck with its poverty. For the most part, books on ... will be struck with its poverty. For the most part, books on glass have been written by collectors and admirers of ...

W. E. S. TURNER

1923-10-27T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

Formation of zirconium metallic glass  

Science Journals Connector (OSTI)

... Bulk metallic glasses are commonly produced by the rapid cooling of liquid alloys. They have emerged over ... a novel class of materials, with attractive properties and technological promise. The bulk metallic glasses so far produced contain three or more component elements. These complex compositions are necessary ...

Jianzhong Zhang; Yusheng Zhao

2004-07-15T23:59:59.000Z

122

Third International Congress on Glass  

Science Journals Connector (OSTI)

... THE Third International Congress on Glass was held in Venice during June 29-July 2, associated with the International Commission ... was held in Venice during June 29-July 2, associated with the International Commission on Glass, the annual meeting of which was held on July 3. 179 delegates attended from ...

1953-08-15T23:59:59.000Z

123

Covering Walls With Fabrics.  

E-Print Network [OSTI]

the glue a dull surface to adhere to. Fill any gouges or nail holes with patching plaster and sand smooth after they have dried thoroughly. Minor ripples can be covered with spackling compound, a plaster-like substance that is spread thinly... during dry weather and in a well-ventilated room. Cut each panel 3 inches longer than the ceiling height. Match and cut sufficient fabric widths to cover completely one wall at a time. Start with Corner I nstall the first fabric panel so...

Anonymous,

1979-01-01T23:59:59.000Z

124

Glass science tutorial: Lecture No. 7, Waste glass technology for Hanford  

SciTech Connect (OSTI)

This paper presents the details of the waste glass tutorial session that was held to promote knowledge of waste glass technology and how this can be used at the Hanford Reservation. Topics discussed include: glass properties; statistical approach to glass development; processing properties of nuclear waste glass; glass composition and the effects of composition on durability; model comparisons of free energy of hydration; LLW glass structure; glass crystallization; amorphous phase separation; corrosion of refractories and electrodes in waste glass melters; and glass formulation for maximum waste loading.

Kruger, A.A.

1995-07-01T23:59:59.000Z

125

Rhenium solubility in borosilicate nuclear waste glass  

E-Print Network [OSTI]

Glasses Developed for Nuclear Waste Immobilization," 91[12],solubility in borosilicate nuclear waste glass Ashutoshfor the researchers in nuclear waste community around the

McCloy, John S.

2014-01-01T23:59:59.000Z

126

Nanophase Glass Ceramics for Capacitive Energy Storage.  

E-Print Network [OSTI]

??Glass ceramics are candidate dielectric materials for high energy storage capacitors. Since energy density depends primarily on dielectric permittivity and breakdown strength, glass ceramics with… (more)

Rangarajan, Badri

2009-01-01T23:59:59.000Z

127

Aluminoborosilicate Waste Glass Dissolution under Alkaline Conditions...  

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

Aluminoborosilicate Waste Glass Dissolution under Alkaline Conditions at 40°C: Implications for a Chemical Affinity-Based Aluminoborosilicate Waste Glass Dissolution under...

128

Bioactive Glass Scaffolds for Bone Regeneration  

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

Bioactive Glass Scaffolds for Bone Regeneration Bioactive Glass Scaffolds for Bone Regeneration Print Wednesday, 28 September 2011 00:00 Natural materials are renowned for their...

129

Domain walls in SU(5)  

Science Journals Connector (OSTI)

We consider the grand unified SU(5) model with a small or vanishing cubic term in the adjoint scalar field in the potential. This gives the model an approximate or exact Z2 symmetry whose breaking leads to domain walls. The simplest domain wall has the structure of a kink across which the Higgs field changes sign (??-?) and inside which the full SU(5) is restored. The kink is shown to be perturbatively unstable for all parameters. We then construct a domain wall solution that is lighter than the kink and show it to be perturbatively stable for a range of parameters. The symmetry in the core of this domain wall is smaller than that outside. The interactions of the domain wall with magnetic monopoles are discussed and it is shown that magnetic monopoles with certain internal space orientations relative to the wall pass through the domain wall. Magnetic monopoles in other relative internal space orientations are likely to be swept away on collision with the domain walls, suggesting a scenario where the domain walls might act like optical polarization filters, allowing certain monopole “polarizations” to pass through but not others. As SU(5) domain walls will also be formed at small values of the cubic coupling, this leads to a very complicated picture of the evolution of defects after the grand unified phase transition.

Levon Pogosian and Tanmay Vachaspati

2000-11-21T23:59:59.000Z

130

Glass Ceramic Formulation Data Package  

SciTech Connect (OSTI)

A glass ceramic waste form is being developed for treatment of secondary waste streams generated by aqueous reprocessing of commercial used nuclear fuel (Crum et al. 2012b). The waste stream contains a mixture of transition metals, alkali, alkaline earths, and lanthanides, several of which exceed the solubility limits of a single phase borosilicate glass (Crum et al. 2009; Caurant et al. 2007). A multi-phase glass ceramic waste form allows incorporation of insoluble components of the waste by designed crystallization into durable heat tolerant phases. The glass ceramic formulation and processing targets the formation of the following three stable crystalline phases: (1) powellite (XMoO4) where X can be (Ca, Sr, Ba, and/or Ln), (2) oxyapatite Yx,Z(10-x)Si6O26 where Y is alkaline earth, Z is Ln, and (3) lanthanide borosilicate (Ln5BSi2O13). These three phases incorporate the waste components that are above the solubility limit of a single-phase borosilicate glass. The glass ceramic is designed to be a single phase melt, just like a borosilicate glass, and then crystallize upon slow cooling to form the targeted phases. The slow cooling schedule is based on the centerline cooling profile of a 2 foot diameter canister such as the Hanford High-Level Waste canister. Up to this point, crucible testing has been used for glass ceramic development, with cold crucible induction melter (CCIM) targeted as the ultimate processing technology for the waste form. Idaho National Laboratory (INL) will conduct a scaled CCIM test in FY2012 with a glass ceramic to demonstrate the processing behavior. This Data Package documents the laboratory studies of the glass ceramic composition to support the CCIM test. Pacific Northwest National Laboratory (PNNL) measured melt viscosity, electrical conductivity, and crystallization behavior upon cooling to identify a processing window (temperature range) for melter operation and cooling profiles necessary to crystallize the targeted phases in the waste form.

Crum, Jarrod V.; Rodriguez, Carmen P.; McCloy, John S.; Vienna, John D.; Chung, Chul-Woo

2012-06-17T23:59:59.000Z

131

A Topological Glass  

E-Print Network [OSTI]

We propose and study a model with glassy behavior. The state space of the model is given by all triangulations of a sphere with $n$ nodes, half of which are red and half are blue. Red nodes want to have 5 neighbors while blue ones want 7. Energies of nodes with different numbers of neighbors are supposed to be positive. The dynamics is that of flipping the diagonal of two adjacent triangles, with a temperature dependent probability. We show that this system has an approach to a steady state which is exponentially slow, and show that the stationary state is unordered. We also study the local energy landscape and show that it has the hierarchical structure known from spin glasses. Finally, we show that the evolution can be described as that of a rarefied gas with spontaneous generation of particles and annihilating collisions.

Jean-Pierre Eckmann

2007-04-07T23:59:59.000Z

132

Soft magnetic composites manufactured by warm co-extrusion of bulk metallic glass and steel powders  

SciTech Connect (OSTI)

Soft magnetic composites of Fe-based bulk metallic glass and low-alloy steel have been manufactured by warm co-extrusion of precursor powders at temperatures within the supercooled liquid region of the glass. Composites were manufactured with amorphous volume fractions of 75%, 67%, and 100%. Full consolidation of the constituent powders was observed with the bulk metallic glass remaining substantially amorphous. The composite electrical resistivity was observed to be anisotropic with a resistivity of 79 {mu}{Omega} cm measured transverse to the extrusion axis in a sample with 75% amorphous volume fraction. A 0-3 connectivity pattern with the low-resistivity steel phase embedded in a 3-dimensionally connected high-resistivity bulk metallic glass phase was observed with scanning electron microscopy. This confirms that the flow characteristics of the bulk metallic glass and the steel powders were comparable during extrusion at these temperatures. The saturation magnetization of 1.3 T was consistent with the volume weighted average of the saturation magnetization of the two phases. A relatively high quasistatic coercivity of 8 Oe was measured and is likely due to slight crystallization of the bulk metallic glass as well as domain wall pinning at prior particle boundaries. Careful control of the thermal environment during the extrusion process is required to minimize glass crystallization and achieve the desired balance of magnetic and electrical properties.

Johnson, Francis; Raber, Thomas R.; Zabala, Robert J.; Buresh, Steve J.; Tanico, Brian [GE Global Research, Ceramic and Metallurgy Technologies, One Research Circle, Niskayuna, New York 12309 (United States)

2013-05-07T23:59:59.000Z

133

Fracture mechanics of cellular glass  

SciTech Connect (OSTI)

Cellular glasses are prime candidate materials for the structural substrate of mirrored glass for solar concentrator reflecting panels. These materials are brittle, however, and susceptible to mechanical failure from slow crack growth caused by a stress corrosion mechanism. The results are detailed of one part of a program established to develop improved cellular glasses and to characterize the behavior of these and commercially available materials. Commercial and developmental cellular glasses were tested and analyzed using standard testing techniques and models developed from linear fracture mechanics. Two models describing the fracture behavior of these materials are developed. Slow crack growth behavior in cellular glass was found to be more complex than that encountered in dense glasses or ceramics. The crack velocity was found to be strongly dependent upon water vapor transport to the tip of the moving crack. The existence of a static fatigue limit was not conclusively established, however, it is speculated that slow crack growth behavior in Region I may be slower, by orders of magnitude, than that found in dense glasses.

Zwissler, J.G.; Adams, M.A.

1981-02-01T23:59:59.000Z

134

Domain Walls in Gapped Graphene  

Science Journals Connector (OSTI)

The electronic properties of a particular class of domain walls in gapped graphene are investigated. We show that they can support midgap states which are localized in the vicinity of the domain wall and propagate along its length. With a finite density of domain walls, these states can alter the electronic properties of gapped graphene significantly. If the midgap band is partially filled, the domain wall can behave like a one-dimensional metal embedded in a semiconductor and could potentially be used as a single-channel quantum wire.

G. W. Semenoff; V. Semenoff; Fei Zhou

2008-08-21T23:59:59.000Z

135

ITP Glass: Glass Industry of the Future: Energy and Environmental...  

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

fuel oil is used in the glass industry (less than 2 percent of total energy). Natural gas is usually the fuel of choice as it is cleaner and in some cases, more cost-effective,...

136

Oven wall panel construction  

DOE Patents [OSTI]

An oven roof or wall is formed from modular panels, each of which comprises an inner fabric and an outer fabric. Each such fabric is formed with an angle iron framework and somewhat resilient tie-bars or welded at their ends to flanges of the angle irons to maintain the inner and outer frameworks in spaced disposition while minimizing heat transfer by conduction and permitting some degree of relative movement on expansion and contraction of the module components. Suitable thermal insulation is provided within the module. Panels or skins are secured to the fabric frameworks and each such skin is secured to a framework and projects laterally so as slidingly to overlie the adjacent frame member of an adjacent panel in turn to permit relative movement during expansion and contraction.

Ellison, Kenneth (20 Avondale Cres., Markham, CA); Whike, Alan S. (R.R. #1, Caledon East, both of Ontario, CA)

1980-04-22T23:59:59.000Z

137

Reinforced glass beamsReinforced glass beamsg Auteur Dr. Christian LOUTER 1  

E-Print Network [OSTI]

Reinforced glass beamsReinforced glass beamsg EDCE Auteur Dr. Christian LOUTER 1 ENAC/EDCE 2011In contemporary architecture glass is increasinglyIn contemporary architecture glass is increasingly applied for structural components such as beamsapplied for structural components such as beams. However glass

138

Microporous glasses for reverse osmosis  

Science Journals Connector (OSTI)

The preparation, heat-treatment and leaching of phase separable borosilicate glasses which are of interest as possible semipermeable membranes for reverse osmosis applications are described. It is shown that ... ...

P. W. McMillan; C. E. Matthews

1976-01-01T23:59:59.000Z

139

Viscosity Measurements in Molten Glass  

Science Journals Connector (OSTI)

The relations existing between viscosity determinations and the various stages of glass manufacture are pointed out and explained with reference to a typical viscosity?temperature curve. The rotation viscometer employed in making such determinations is described. Curves are shown for four representative types of glasses: a lead a lime a lead borosilicate and a hard borosilicate and the use to which such comparison curves may be put is indicated.

Howard R. Lillie

1932-01-01T23:59:59.000Z

140

Fabrication of glass microspheres with conducting surfaces  

DOE Patents [OSTI]

A method for making hollow glass microspheres with conducting surfaces by adding a conducting vapor to a region of the glass fabrication furnace. As droplets or particles of glass forming material pass through multiple zones of different temperature in a glass fabrication furnace, and are transformed into hollow glass microspheres, the microspheres pass through a region of conducting vapor, forming a conducting coating on the surface of the microspheres.

Elsholz, William E. (Acampo, CA)

1984-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

Dynamics of strings between walls  

SciTech Connect (OSTI)

Configurations of vortex-strings stretched between or ending on domain walls were previously found to be 1/4 BPS states. Among zero modes of string positions, the center of mass of strings in each region between two adjacent domain walls is shown to be non-normalizable whereas the rests are normalizable. We study dynamics of vortex-strings stretched between separated domain walls by using two methods, the moduli space (geodesic) approximation of full 1/4 BPS states and the charged particle approximation for string endpoints in the wall effective action. In the first method we obtain the effective Lagrangian explicitly and find the 90 degree scattering for head-on collision. In the second method the domain wall effective action is assumed to be U(1){sup N} gauge theory, and we find a good agreement between two methods for well separated strings. This talk is based on the work [1].

Eto, Minoru [INFN, Sezione di Pisa, Largo Pontecorvo, 3, Ed. C, 56127 Pisa (Italy); Fujimori, Toshiaki; Nagashima, Takayuki [Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551 (Japan); Nitta, Muneto [Department of Physics, Keio University, Hiyoshi, Yokohama, Kanagawa 223-8521 (Japan); Ohashi, Keisuke [Department of Applied Mathematics and Theoretical Physics, University of Cambridge, CB3 0WA (United Kingdom); Sakai, Norisuke [Department of Mathematics, Tokyo Woman's Christian University, Tokyo 167-8585 (Japan)

2008-11-23T23:59:59.000Z

142

The effect of regimes and methods of glass forming on the tin content in float glass  

Science Journals Connector (OSTI)

The dependence of the tin content in glass is derived as a function of the iron oxidecontent in the glass composition, regimes and methods of forming, ... The ways of reducing the tin content in glass in the cour...

V. I. Kondrashov; V. S. Bezlyudnaya; Yu. V. Zverev

143

Natural analogues of nuclear waste glass corrosion.  

SciTech Connect (OSTI)

This report reviews and summarizes studies performed to characterize the products and processes involved in the corrosion of natural glasses. Studies are also reviewed and evaluated on how well the corrosion of natural glasses in natural environments serves as an analogue for the corrosion of high-level radioactive waste glasses in an engineered geologic disposal system. A wide range of natural and experimental corrosion studies has been performed on three major groups of natural glasses: tektite, obsidian, and basalt. Studies of the corrosion of natural glass attempt to characterize both the nature of alteration products and the reaction kinetics. Information available on natural glass was then compared to corresponding information on the corrosion of nuclear waste glasses, specifically to resolve two key questions: (1) whether one or more natural glasses behave similarly to nuclear waste glasses in laboratory tests, and (2) how these similarities can be used to support projections of the long-term corrosion of nuclear waste glasses. The corrosion behavior of basaltic glasses was most similar to that of nuclear waste glasses, but the corrosion of tektite and obsidian glasses involves certain processes that also occur during the corrosion of nuclear waste glasses. The reactions and processes that control basalt glass dissolution are similar to those that are important in nuclear waste glass dissolution. The key reaction of the overall corrosion mechanism is network hydrolysis, which eventually breaks down the glass network structure that remains after the initial ion-exchange and diffusion processes. This review also highlights some unresolved issues related to the application of an analogue approach to predicting long-term behavior of nuclear waste glass corrosion, such as discrepancies between experimental and field-based estimates of kinetic parameters for basaltic glasses.

Abrajano, T.A. Jr.; Ebert, W.L.; Luo, J.S.

1999-01-06T23:59:59.000Z

144

Three-Dimensional Flow and Thermal Structures in Glass Melting Furnaces. Part II: Effect of Batch and Bubbles.  

E-Print Network [OSTI]

) the wall heat losses, and (v) the thickness of glass melt containing gas bubbles under the batch. The study indicates that the partially submerged batch and heat losses through the refractories have a strong impact by adjusting the fuel firing in the combustion space. The heat flux distribution resulting from combustion

Pilon, Laurent

145

Resuspension of wall deposits in spray dryers  

Science Journals Connector (OSTI)

Wall deposition occurs in spray dryers when dried or partially dried particles contact and adhere to the walls during operation, thus reducing the yield of product collected. Wall deposits also present a product ...

M. J. Hanus; T. A. G. Langrish

2007-10-01T23:59:59.000Z

146

Breaking Through the Glass Ceiling: Recent Experimental Approaches...  

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

Through the Glass Ceiling: Recent Experimental Approaches to Probe the Properties of Supercooled Liquids near the Glass Breaking Through the Glass Ceiling: Recent Experimental...

147

A radiochemical study of the mechanism of polishing glass.  

E-Print Network [OSTI]

??In an effort to determine whether glass flows when polished uranium glasses were fused to non uranium glasses and polishings carried out in a direction… (more)

Smith, John Graham

2012-01-01T23:59:59.000Z

148

Nano-structured self-cleaning superhydrophobic glass  

E-Print Network [OSTI]

5. Optically transparent glass with vertically alignedcomposition of biosoluble glass fiber” Korean ApplicationS. Jin, “Optically Transparent Glass with Vertically Aligned

Kim, Jin Yeol

2010-01-01T23:59:59.000Z

149

Preliminary Simulation of the Corrosion Rate of Archaeological Glass  

E-Print Network [OSTI]

to a fractured Roman glass. Geochimica et Cosmochimica Acta,Santarini (2008). SON68 nuclear glass dissolution kinetics:B. (2006). Nuclear waste glasses – How durable? Elements, 2,

Steefel, Carl

2014-01-01T23:59:59.000Z

150

Small Glass-Melting Furnaces for Clear, Tinted, and Specialized Glass  

Science Journals Connector (OSTI)

Data on the design and application areas of small-sized glass-melting furnaces for melting various-purpose glasses are supplied.

A. A. Dymov; V. A. Fedorova

2000-07-01T23:59:59.000Z

151

Open-cell glass crystalline porous material  

DOE Patents [OSTI]

An open-cell glass crystalline porous material made from hollow microspheres which are cenospheres obtained from fly ash, having an open-cell porosity of up to 90 vol. % is produced. The cenospheres are separated into fractions based on one or more of grain size, density, magnetic or non-magnetic, and perforated or non-perforated. Selected fractions are molded and agglomerated by sintering with a binder at a temperature below the softening temperature, or without a binder at a temperature about, or above, the softening temperature but below the temperature of liquidity. The porous material produced has an apparent density of 0.3-0.6 g/cm.sup.3, a compressive strength in the range of 1.2-3.5 MPa, and two types of openings: through-flow wall pores in the cenospheres of 0.1-30 micrometers, and interglobular voids between the cenospheres of 20-100 micrometers. The porous material of the invention has properties useful as porous matrices for immobilization of liquid radioactive waste, heat-resistant traps and filters, supports for catalysts, adsorbents and ion-exchangers.

Anshits, Alexander G. (Krasnoyarsk, RU); Sharonova, Olga M. (Krasnoyarsk, RU); Vereshchagina, Tatiana A. (Krasnoyarsk, RU); Zykova, Irina D. (Krasnoyarsk, RU); Revenko, Yurii A. (Zheleznogorsk, RU); Tretyakov, Alexander A. (Zheleznogorsk, RU); Aloy, Albert S. (Saint-Petersburg, RU); Lubtsev, Rem I. (Saint-Petersburg, RU); Knecht, Dieter A. (Idaho Falls, ID); Tranter, Troy J. (Idaho Falls, ID); Macheret, Yevgeny (Idaho Falls, ID)

2002-01-01T23:59:59.000Z

152

HLW Glass Studies: Development of Crystal-Tolerant HLW Glasses  

SciTech Connect (OSTI)

In our study, a series of lab-scale crucible tests were performed on designed glasses of different compositions to further investigate and simulate the effect of Cr, Ni, Fe, Al, Li, and RuO2 on the accumulation rate of spinel crystals in the glass discharge riser of the HLW melter. The experimental data were used to expand the compositional region covered by an empirical model developed previously (Matyᚠet al. 2010b), improving its predictive performance. We also investigated the mechanism for agglomeration of particles and impact of agglomerates on accumulation rate. In addition, the TL was measured as a function of temperature and composition.

Matyas, Josef; Huckleberry, Adam R.; Rodriguez, Carmen P.; Lang, Jesse B.; Owen, Antionette T.; Kruger, Albert A.

2012-04-02T23:59:59.000Z

153

Crystallization of niobium germanosilicate glasses  

SciTech Connect (OSTI)

Niobium germanosilicate glasses are potential candidates for the fabrication of transparent glass ceramics with interesting non-linear optical properties. A series of glasses in the (Ge,Si)O{sub 2}-Nb{sub 2}O{sub 5}-K{sub 2}O system were prepared by melting and casting and their characteristic temperatures were determined by differential thermal analysis. Progressive replacement of GeO{sub 2} by SiO{sub 2} improved the thermal stability of the glasses. Depending on the composition and the crystallization heat-treatment, different nanocrystalline phases-KNbSi{sub 2}O{sub 7}, K{sub 3}Nb{sub 3}Si{sub 2}O{sub 13} and K{sub 3.8}Nb{sub 5}Ge{sub 3}O{sub 20.4} could be obtained. The identification and characterization of these phases were performed by X-ray diffraction and Raman spectroscopy. The 40 GeO{sub 2}-10 SiO{sub 2}-25 Nb{sub 2}O{sub 5}-25 K{sub 2}O (mol%) composition presented the higher ability for volume crystallization and its nucleation temperature was determined by the Marotta's method. An activation energy for crystal growth of {approx}529 kJ/mol and a nucleation rate of 9.7x10{sup 18} m{sup -3} s{sup -1} was obtained, for this composition. Transparent glass ceramics with a crystalline volume fraction of {approx}57% were obtained after a 2 h heat-treatment at the nucleation temperature, with crystallite sizes of {approx}20 nm as determined by transmission electron microscopy. - Abstract: TEM image and XRD pattern of the glass ceramic produced (circles indicate nanocrystals).

Santos, Rodrigo [Departamento de Engenharia de Materiais/ICEMS, Instituto Superior Tecnico/TU Lisbon, Av. Rovisco Pais, 1, 1049-001 Lisbon (Portugal); Santos, Luis F., E-mail: luis.santos@ist.utl.p [Departamento de Engenharia de Materiais/ICEMS, Instituto Superior Tecnico/TU Lisbon, Av. Rovisco Pais, 1, 1049-001 Lisbon (Portugal); Almeida, Rui M. [Departamento de Engenharia de Materiais/ICEMS, Instituto Superior Tecnico/TU Lisbon, Av. Rovisco Pais, 1, 1049-001 Lisbon (Portugal); Deubener, Joachim [Institute of Non-Metallic Materials, Clausthal University of Technology, Clausthal-Zellerfeld (Germany); Wondraczek, Lothar [Department of Materials Science, Glass and Ceramics, University of Erlangen-Nuremberg, 91058 Erlangen (Germany)

2010-01-15T23:59:59.000Z

154

Inelastic Neutron Scattering from Glass Formers  

Science Journals Connector (OSTI)

......research-article Articles Inelastic Neutron Scattering from Glass Formers U. Buchenau...transition. Coherent inelastic neutron scattering data indicate a mixture of...Supplement No. 126, 1997 Inelastic Neutron Scattering from Glass Formers U. BUCHENAU......

U. Buchenau

1997-01-01T23:59:59.000Z

155

Structure glass technology : systems and applications  

E-Print Network [OSTI]

Glass cannot compete with steel in terms of strength or durability, but it is the only structural material that offers the highly sought after qualities of translucency and transparency. The use of glass has evolved from ...

Leitch, Katherine K. (Katherine Kristen)

2005-01-01T23:59:59.000Z

156

The Conservation of Seventeenth Century Archaeological Glass  

E-Print Network [OSTI]

is the only chance for the objects survival. Though glass is considered one of the most stable archaeological materials, noninvasive, reversible treatments are not always possible given the level of deterioration glass objects undergo within the archaeological...

Arcak, Cory

2010-10-12T23:59:59.000Z

157

Glass Transition and the Coulomb Gap in Electron Glasses M. Muller and L. B. Ioffe  

E-Print Network [OSTI]

Glass Transition and the Coulomb Gap in Electron Glasses M. Mu¨ller and L. B. Ioffe Department December 2004) We establish the connection between the presence of a glass phase and the appearance correlations in a systematic way, we show that in the case of strong disorder a continuous glass transition

Müller, Markus

158

Heating-induced glass-glass and glass-liquid transformations in computer simulations of water  

SciTech Connect (OSTI)

Water exists in at least two families of glassy states, broadly categorized as the low-density (LDA) and high-density amorphous ice (HDA). Remarkably, LDA and HDA can be reversibly interconverted via appropriate thermodynamic paths, such as isothermal compression and isobaric heating, exhibiting first-order-like phase transitions. We perform out-of-equilibrium molecular dynamics simulations of glassy water using the ST2 model to study the evolution of LDA and HDA upon isobaric heating. Depending on pressure, glass-to-glass, glass-to-crystal, glass-to-vapor, as well as glass-to-liquid transformations are found. Specifically, heating LDA results in the following transformations, with increasing heating pressures: (i) LDA-to-vapor (sublimation), (ii) LDA-to-liquid (glass transition), (iii) LDA-to-HDA-to-liquid, (iv) LDA-to-HDA-to-liquid-to-crystal, and (v) LDA-to-HDA-to-crystal. Similarly, heating HDA results in the following transformations, with decreasing heating pressures: (a) HDA-to-crystal, (b) HDA-to-liquid-to-crystal, (c) HDA-to-liquid (glass transition), (d) HDA-to-LDA-to-liquid, and (e) HDA-to-LDA-to-vapor. A more complex sequence may be possible using lower heating rates. For each of these transformations, we determine the corresponding transformation temperature as function of pressure, and provide a P-T “phase diagram” for glassy water based on isobaric heating. Our results for isobaric heating dovetail with the LDA-HDA transformations reported for ST2 glassy water based on isothermal compression/decompression processes [Chiu et al., J. Chem. Phys. 139, 184504 (2013)]. The resulting phase diagram is consistent with the liquid-liquid phase transition hypothesis. At the same time, the glass phase diagram is sensitive to sample preparation, such as heating or compression rates. Interestingly, at least for the rates explored, our results suggest that the LDA-to-liquid (HDA-to-liquid) and LDA-to-HDA (HDA-to-LDA) transformation lines on heating are related, both being associated with the limit of kinetic stability of LDA (HDA)

Chiu, Janet; Giovambattista, Nicolas [Department of Physics, Brooklyn College of the City University of New York, Brooklyn, New York 11210 (United States)] [Department of Physics, Brooklyn College of the City University of New York, Brooklyn, New York 11210 (United States); Starr, Francis W. [Department of Physics, Wesleyan University, Middletown, Connecticut 06459 (United States)] [Department of Physics, Wesleyan University, Middletown, Connecticut 06459 (United States)

2014-03-21T23:59:59.000Z

159

Classification of oxide glasses: A polarizability approach  

SciTech Connect (OSTI)

A classification of binary oxide glasses has been proposed taking into account the values obtained on their refractive index-based oxide ion polarizability {alpha}{sub O2-}(n{sub 0}), optical basicity {lambda}(n{sub 0}), metallization criterion M(n{sub 0}), interaction parameter A(n{sub 0}), and ion's effective charges as well as O1s and metal binding energies determined by XPS. Four groups of oxide glasses have been established: glasses formed by two glass-forming acidic oxides; glasses formed by glass-forming acidic oxide and modifier's basic oxide; glasses formed by glass-forming acidic and conditional glass-forming basic oxide; glasses formed by two basic oxides. The role of electronic ion polarizability in chemical bonding of oxide glasses has been also estimated. Good agreement has been found with the previous results concerning classification of simple oxides. The results obtained probably provide good basis for prediction of type of bonding in oxide glasses on the basis of refractive index as well as for prediction of new nonlinear optical materials.

Dimitrov, Vesselin [Department of Silicate Technology, University of Chemical Technology and Metallurgy, 8 Kl. Ohridski Blvd., Sofia 1756 (Bulgaria); Komatsu, Takayuki [Department of Chemistry, The Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka-shi, Niigata-ken 940-2188 (Japan)]. E-mail: komatsu@chem.nagaokaut.ac.jp

2005-03-15T23:59:59.000Z

160

Glass Fibres for Cement Reinforcement [and Discussion  

Science Journals Connector (OSTI)

21 January 1980 research-article Glass Fibres for Cement Reinforcement [and Discussion...Ubbelohde G. Manfre The development of glass fibre compositions having sufficient alkali...resistance were used in an initial evaluation of glass compositions, which were then further...

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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
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161

On the Strength and Structure of Glass  

Science Journals Connector (OSTI)

...research-article On the Strength and Structure of Glass J. E. Gordon D. M. Marsh Margaret E. M. L. Parratt The strength of glass is known to be very variable and also...been revealed on the surface of drawn glasses. These crack systems are correlated...

1959-01-01T23:59:59.000Z

162

Monte Carlo Simulation of Isopentane Glass  

Science Journals Connector (OSTI)

...research-article Monte Carlo Simulation of Isopentane Glass S. Yashonath C. N. R. Rao Monte Carlo...quenching the liquid, we have obtained the glass-transition temperature from the temperature...distribution functions suggest a structure of the glass primarily influenced by geometrical factors...

1985-01-01T23:59:59.000Z

163

Identifying the Bose glass phase  

E-Print Network [OSTI]

Introducing disorder into the Bose-Hubbard model at integer fillings leads to a Bose glass phase, along with the Mott insulator and superfluid phases. We suggest a new order parameter: the determinant of the one body density matrix, which is nonzero only within the Mott-insulator phase. Alongside the superfluid fraction, it is then possible to distinguish the three phases. The Bose glass phase is the only phase which has vanishing determinant and superfluid fraction. The vanishing of the determinant in the Bose glass phase occurs due to the partial fragmentation of the condensate into localized fragments, each with zero superfluid response, which implies the presence of unoccupied sites and hence the presence of lines of zeros in the one body density matrix. In the superfluid phase, the determinant vanish for another reason - due to the macroscopic occupation of a single particle state. Finally, we suggest the enhancement of the three body decay rate in the Bose glass phase, as an experimental indicator for the presence of localized fragments.

R. Pugatch; N. Bar-gill; N. Katz; E. Rowen; N. Davidson

2006-07-28T23:59:59.000Z

164

Dynamics of strings between walls  

SciTech Connect (OSTI)

Configurations of vortex strings stretched between or ending on domain walls were previously found to be 1/4 Bogomol'nyi-Prasad-Sommerfield (BPS) states in N=2 supersymmetric gauge theories in 3+1 dimensions. Among zero modes of string positions, the center of mass of strings in each region between two adjacent domain walls is shown to be non-normalizable whereas the rests are normalizable. We study dynamics of vortex strings stretched between separated domain walls by using two methods, the moduli space (geodesic) approximation of full 1/4 BPS states and the charged particle approximation for string end points in the wall effective action. In the first method we explicitly obtain the effective Lagrangian in the strong coupling limit, which is written in terms of hypergeometric functions, and find the 90 deg. scattering for head-on collision. In the second method the domain wall effective action is assumed to be U(1){sup N} gauge theory, and we find a good agreement between two methods for well-separated strings.

Eto, Minoru [INFN, Sezione di Pisa, Largo Pontecorvo, 3, Ed. C, 56127 Pisa (Italy); Department of Physics, University of Pisa Largo Pontecorvo, 3, Ed. C, 56127 Pisa (Italy); Fujimori, Toshiaki; Nagashima, Takayuki [Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551 (Japan); Nitta, Muneto [Department of Physics, Keio University, Hiyoshi, Yokohama, Kanagawa 223-8521 (Japan); Ohashi, Keisuke [Department of Applied Mathematics and Theoretical Physics, University of Cambridge, CB3 0WA (United Kingdom); Sakai, Norisuke [Department of Mathematics, Tokyo Woman's Christian University, Tokyo 167-8585 (Japan)

2009-02-15T23:59:59.000Z

165

Domain walls riding the wave.  

SciTech Connect (OSTI)

Recent years have witnessed a rapid proliferation of electronic gadgets around the world. These devices are used for both communication and entertainment, and it is a fact that they account for a growing portion of household energy consumption and overall world consumption of electricity. Increasing the energy efficiency of these devices could have a far greater and immediate impact than a gradual switch to renewable energy sources. The advances in the area of spintronics are therefore very important, as gadgets are mostly comprised of memory and logic elements. Recent developments in controlled manipulation of magnetic domains in ferromagnet nanostructures have opened opportunities for novel device architectures. This new class of memories and logic gates could soon power millions of consumer electronic devices. The attractiveness of using domain-wall motion in electronics is due to its inherent reliability (no mechanical moving parts), scalability (3D scalable architectures such as in racetrack memory), and nonvolatility (retains information in the absence of power). The remaining obstacles in widespread use of 'racetrack-type' elements are the speed and the energy dissipation during the manipulation of domain walls. In their recent contribution to Physical Review Letters, Oleg Tretiakov, Yang Liu, and Artem Abanov from Texas A&M University in College Station, provide a theoretical description of domain-wall motion in nanoscale ferromagnets due to the spin-polarized currents. They find exact conditions for time-dependent resonant domain-wall movement, which could speed up the motion of domain walls while minimizing Ohmic losses. Movement of domain walls in ferromagnetic nanowires can be achieved by application of external magnetic fields or by passing a spin-polarized current through the nanowire itself. On the other hand, the readout of the domain state is done by measuring the resistance of the wire. Therefore, passing current through the ferromagnetic wire is the preferred method, as it combines manipulation and readout of the domain-wall state. The electrons that take part in the process of readout and manipulation of the domain-wall structure in the nanowire do so through the so-called spin transfer torque: When spin-polarized electrons in the ferromagnet nanowire pass through the domain wall they experience a nonuniform magnetization, and they try to align their spins with the local magnetic moments. The force that the electrons experience has a reaction force counterpart that 'pushes' the local magnetic moments, resulting in movement of the domain wall in the direction of the electron flow through the spin-transfer torque. The forces between the electrons and the local magnetic moments in the ferromagnet also create additional electrical resistance for the electrons passing through the domain wall. By measuring resistance across a segment of the nanowire, one determines if a domain wall is present; i.e., one can read the stored information. The interaction of the spin-polarized electrons with the domain wall in the ferromagnetic nanowire is not very efficient. Even for materials achieving high polarization of the free electrons, it is very difficult to move the magnetic domain wall. Several factors contribute to this problem, with imperfections of the ferromagnetic nanowire that cause domain-wall pinning being the dominant one. Permalloy nanowires, one of the best candidates for domain-wall-based memory and logic devices, require current densities of the order of 10{sup 8} A/cm{sup 2} in order to move a domain wall from a pinning well. Considering that this current has to pass through a relatively long wire, it is not very difficult to imagine that most of the energy will go to Joule heating. The efficiency of the process - the ratio of the energy converted to domain-wall motion to the total energy consumed - is comparable to that of an incandescent light bulb converting electricity to light. A step towards more efficient domain-wall-based memory devices is the advance of using alternating currents or curren

Karapetrov, G.; Novosad, V.; Materials Science Division

2010-11-01T23:59:59.000Z

166

Extraction of Proteins Glass Bead Method For preparation of protein extracts, the glass bead method is preferred. Some researchers  

E-Print Network [OSTI]

Extraction of Proteins ­ Glass Bead Method For preparation of protein extracts, the glass bead. glass beads (106 micron glass bead, Sigma cat. No. G4649) 7. Tabletop centrifuge 8. Vortex 9 µl glass beads (106 micron glass beads, Sigma, cat. G4649). 8. Vortex at top speed for 5 minutes. 9

167

Domain Walls, Triples and Acceleration  

E-Print Network [OSTI]

We present a construction of domain walls in string theory. The domain walls can bridge both Minkowski and AdS string vacua. A key ingredient in the construction are novel classical Yang-Mills configurations, including instantons, which interpolate between toroidal Yang-Mills vacua. Our construction provides a concrete framework for the study of inflating metrics in string theory. In some cases, the accelerating space-time comes with a holographic description. The general form of the holographic dual is a field theory with parameters that vary over space-time.

Travis Maxfield; Savdeep Sethi

2014-04-09T23:59:59.000Z

168

Liquid Walls Innovative Concepts for First Walls and Blankets  

E-Print Network [OSTI]

rrr �= V r J r PV r B r 1P 2P g r + - V r #12;Liquid Wall Options Thickness · Thin (~ 2cm with existing technology · Size of plasma devices and power plants can be substantially reduced High Poloidal

Abdou, Mohamed

169

Durability of Silicate Glasses: An Historical Approach  

SciTech Connect (OSTI)

We present a short review of current theories of glass weathering, including glass dissolution, and hydrolysis of nuclear waste glasses, and leaching of historical glasses from an XAFS perspective. The results of various laboratory leaching experiments at different timescales (30 days to 12 years) are compared with results for historical glasses that were weathered by atmospheric gases and soil waters over 500 to 3000 years. Good agreement is found between laboratory experiments and slowly leached historical glasses, with a strong enrichment of metals at the water/gel interface. Depending on the nature of the transition elements originally dissolved in the melt, increasing elemental distributions are expected to increase with time for a given glass durability context.

Farges, Francois; /Museum Natl. Hist. Natur. /Stanford U., Geo. Environ. Sci.; Etcheverry, Marie-Pierre; /Marne la Vallee U.; Haddi, Amine; /Marne la Valle U.; Trocellier,; /Saclay; Curti, Enzo; /PSI, Villigen; Brown, Gordon E., Jr.; /SLAC, SSRL

2007-01-02T23:59:59.000Z

170

Pressurized heat treatment of glass ceramic  

DOE Patents [OSTI]

A method of producing a glass-ceramic having a specified thermal expansion value is disclosed. The method includes the step of pressurizing the parent glass material to a predetermined pressure during heat treatment so that the glass-ceramic produced has a specified thermal expansion value. Preferably, the glass-ceramic material is isostatically pressed. A method for forming a strong glass-ceramic to metal seal is also disclosed in which the glass-ceramic is fabricated to have a thermal expansion value equal to that of the metal. The determination of the thermal expansion value of a parent glass material placed in a high-temperature environment is also used to determine the pressure in the environment.

Kramer, D.P.

1984-04-19T23:59:59.000Z

171

Glasses for solar energy conversion systems  

Science Journals Connector (OSTI)

Solar technologies are projected to increase tremendously over the next 10 years. Glasses are playing an important role as transparent materials of photovoltaic (PV) cells and concentrating solar power (CSP) systems. Glasses are materials of short energy payback time and environmental compatibility suitable for sustainable energy concepts. The paper reviews recent solar applications. Surface structuring and coating of glasses are shown to improve energy efficiency for solar conversion systems substantially. Encapsulated glass-to-glass PV modules and solar photocatalytic glass surfaces are identified as elements of a green architecture combining renewable power generating and destruction of air pollutants of urban environments. Emerging solar technologies for power generation, including transparent PV modules, solar chimney and thermoelectric systems may become significant areas of future solar glass applications.

J. Deubener; G. Helsch; A. Moiseev; H. Bornhöft

2009-01-01T23:59:59.000Z

172

Coated glass in the automotive industry  

Science Journals Connector (OSTI)

Inorganic coatings on glasses have reached the level where they will certainly be applied in the automotive industry in order to solve such glazing problems as heat load, heat loss, glare, UV adsorption, disturbed reflections, electromagnetic influence and thermal insulation. Their widespread use will depend on optimising the solution to problems of solar control and heatable glasses while the glass is also capable of the other functions required of it, thus justifying the relatively high cost that is predicted. There remain unsolved problems in optical limits and colour matching. When these are solved solar control glasses are likely to give real advantages in terms of air conditioning and comfort, and heatable glasses will be used in association with electrical power for demisting and deicing. Particular attention is being directed to a class of infrared reflecting and heatable glasses, obtained by selectively coating transparent plastic films that are embedded or bonded in laminated or tempered glasses. Fabricating this type of glasses has mainly been useful for two reasons: (I) to develop versatile techniques to make solar control IR reflecting and heatable glasses for all kinds and dimensions of vehicle glazing; and (2) to assess whether these glasses are really feasible alternatives to directly coated glasses. This paper describes results of some solar control experiments in Fiat cars: to ascertain the actual internal temperature differences found when glazing vehicles with the absorbing and reflecting IR glasses currently available; and to obtain results with a similar purpose using heatable glasses. There is also discussion of how the glasses could be used in glazing all or parts of a car's windows / especially addressing problems of glare. Suggestions are made of the directions of this research in the future.

G. Manfre

1991-01-01T23:59:59.000Z

173

Probing the glass transition from structural and vibrational properties of zero-temperature glasses  

E-Print Network [OSTI]

We find that the density dependence of the glass transition temperature of Lennard-Jones (LJ) and Weeks-Chandler-Andersen (WCA) systems can be predicted from properties of the zero-temperature ($T=0$) glasses. Below a crossover density $\\rho_s$, LJ and WCA glasses show different structures, leading to different vibrational properties and consequently making LJ glasses more stable with higher glass transition temperatures than WCA ones. Above $\\rho_s$, structural and vibrational quantities of the $T=0$ glasses show scaling collapse. From scaling relations and dimensional analysis, we predict a density scaling of the glass transition temperature, in excellent agreement with simulation results. We also propose an empirical expression of the glass transition temperature using structural and vibrational properties of the $T=0$ glasses, which works well over a wide range of densities.

Lijin Wang; Ning Xu

2014-02-10T23:59:59.000Z

174

Dynamics of Domain Wall Networks  

E-Print Network [OSTI]

Networks or webs of domain walls are admitted in Abelian or non-Abelian gauge theory coupled to fundamental Higgs fields with complex masses. We examine the dynamics of the domain wall loops by using the moduli approximation and find a phase rotation induces a repulsive force which can be understood as a Noether charge of Q-solitons. Non-Abelian gauge theory allows different types of loops which can be deformed to each other by changing a modulus. This admits the moduli geometry like a sandglass made by gluing the tips of the two cigar-(cone-)like metrics of a single triangle loop. We conclude that the sizes of all loops tend to grow for a late time in general models with complex Higgs masses, while the sizes are stabilized at some values once triplet masses are introduced for the Higgs fields. We also show that the stationary motion on the moduli space of the domain wall webs represents 1/4 BPS Q-webs of walls.

Minoru Eto; Toshiaki Fujimori; Takayuki Nagashima; Muneto Nitta; Keisuke Ohashi; Norisuke Sakai

2007-07-22T23:59:59.000Z

175

Dynamics of domain wall networks  

SciTech Connect (OSTI)

Networks or webs of domain walls are admitted in Abelian or non-Abelian gauge theory coupled to fundamental Higgs fields with complex masses. We examine the dynamics of the domain wall loops by using the moduli approximation and find a phase rotation induces a repulsive force which can be understood as a Noether charge of Q-solitons. Non-Abelian gauge theory allows different types of loops which can be deformed to each other by changing a modulus. This admits the moduli geometry like a sandglass made by gluing the tips of the two cigar-(cone-)like metrics of a single triangle loop. We conclude that the sizes of all loops tend to grow for a late time in general models with complex Higgs masses, while the sizes are stabilized at some values once triplet masses are introduced for the Higgs fields. We also show that the stationary motion on the moduli space of the domain wall webs represents 1/4 Bogomol'nyi-Prasad-Sommerfield Q-webs of walls.

Eto, Minoru [INFN, Sezione di Pisa, Largo Pontecorvo, 3, Ed. C, 56127 Pisa (Italy); Department of Physics, University of Pisa Largo Pontecorvo, 3, Ed. C, 56127 Pisa (Italy); Fujimori, Toshiaki; Nagashima, Takayuki; Sakai, Norisuke [Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551 (Japan); Nitta, Muneto [Department of Physics, Keio University, Hiyoshi, Yokohama, Kanagawa 223-8521 (Japan); Ohashi, Keisuke [Department of Applied Mathematics and Theoretical Physics, University of Cambridge, CB3 0WA (United Kingdom)

2007-12-15T23:59:59.000Z

176

Polymorphism of the glass former ethanol confined in mesoporous silicon  

E-Print Network [OSTI]

X-ray diffraction patterns of ethanol confined in parallel-aligned channels of approx. 10 nm diameter and 50 micrometer length in mesoporous silicon have been recorded as a function of filling fraction, temperature and for varying cooling and heating rates. A sorption isotherm, recorded in the liquid state, indicates a three monolayer thick, strongly adsorbed wall layer and a capillary condensed fraction of molecules in the pore center. Though the strongly adsorbed film remains in an amorphous state for the entire temperature range investigated, the capillary condensed molecules reproduce the polymorphism of bulk solid ethanol, that is the formation of either crystalline or glass-like states as a function of cooling rate. The critical rate necessary to achieve a vitrification in the mesopores is, however, at least two orders of magnitude smaller than in the bulk state. This finding can be traced both to pure geometrical constraints and quenched disorder effects, characteristic of confinement in mesoporous silicon.

Anke Henschel; Klaus Knorr; Patrick Huber

2010-05-12T23:59:59.000Z

177

Polymorphism of the glass former ethanol confined in mesoporous silicon  

E-Print Network [OSTI]

X-ray diffraction patterns of ethanol confined in parallel-aligned channels of approx. 10 nm diameter and 50 micrometer length in mesoporous silicon have been recorded as a function of filling fraction, temperature and for varying cooling and heating rates. A sorption isotherm, recorded in the liquid state, indicates a three monolayer thick, strongly adsorbed wall layer and a capillary condensed fraction of molecules in the pore center. Though the strongly adsorbed film remains in an amorphous state for the entire temperature range investigated, the capillary condensed molecules reproduce the polymorphism of bulk solid ethanol, that is the formation of either crystalline or glass-like states as a function of cooling rate. The critical rate necessary to achieve a vitrification in the mesopores is, however, at least two orders of magnitude smaller than in the bulk state. This finding can be traced both to pure geometrical constraints and quenched disorder effects, characteristic of confinement in mesoporous sil...

Henschel, Anke; Huber, Patrick; 10.1080/09500831003766999

2010-01-01T23:59:59.000Z

178

Method for heating, forming and tempering a glass sheet  

DOE Patents [OSTI]

A method for heating, forming and tempering a glass sheet including the steps of heating at least one glass sheet to at least a first predetermined temperature, applying microwave energy to the glass sheet to heat the glass sheet to at least a second predetermined temperature, forming the glass sheet to a predetermined configuration, and cooling an outer surface of the glass sheet to at least a third predetermined temperature to temper the glass sheet.

Boaz, Premakaran Tucker (Livonia, MI); Sitzman, Gary W. (Walled Lake, MI)

1998-01-01T23:59:59.000Z

179

Systems Biology Approaches to Dissecting Plant Cell Wall Biosynthesis Genes in Poplus (JGI Seventh Annual User Meeting 2012: Genomics of Energy and Environment)  

ScienceCinema (OSTI)

N. Louise Glass from the University of California, Berkeley, presents a talk titled "Systems Biology Approaches to Dissecting Plant Cell Wall Biosynthesis Genes in Poplus" at the JGI 7th Annual Users Meeting: Genomics of Energy & Environment Meeting on March 22, 2012 in Walnut Creek, California.

Glass, N Louise [UC Berkeley

2013-01-25T23:59:59.000Z

180

Reactive cluster model of metallic glasses  

SciTech Connect (OSTI)

Though discovered more than a half century ago metallic glasses remain a scientific enigma. Unlike crystalline metals, characterized by short, medium, and long-range order, in metallic glasses short and medium-range order persist, though long-range order is absent. This fact has prompted research to develop structural descriptions of metallic glasses. Among these are cluster-based models that attribute amorphous structure to the existence of clusters that are incommensurate with crystalline periodicity. Not addressed, however, are the chemical factors stabilizing these clusters and promoting their interconnections. We have found that glass formers are characterized by a rich cluster chemistry that above the glass transformation temperature promotes exchange as well as static and vibronic sharing of atoms between clusters. The vibronic mechanism induces correlated motions between neighboring clusters and we hypothesize that the distance over which these motions are correlated mediates metallic glass stability and influences critical cooling rates.

Jones, Travis E. [Molecular Theory Group, Colorado School of Mines, Golden, Colorado 80401 (United States) [Molecular Theory Group, Colorado School of Mines, Golden, Colorado 80401 (United States); School of Physics, The University of Sydney, Sydney, New South Wales 2006 (Australia); Miorelli, Jonathan; Eberhart, Mark E. [Molecular Theory Group, Colorado School of Mines, Golden, Colorado 80401 (United States)] [Molecular Theory Group, Colorado School of Mines, Golden, Colorado 80401 (United States)

2014-02-28T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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.


181

Current status of the GLASS code  

SciTech Connect (OSTI)

This paper summarizes the current status of the Generalized Lattice Analysis SubSystem (GLASS) computer code and its supporting cross section libraries. GLASS was developed at the Savannah River Site (SRS) in the early 1970's. The GLASS code has been instrumental in supporting safe Heavy Water Reactor (HWR) operations and predicting material production at SRS for more than 20 years. The Department of Energy Office of New Production Reactors (ONPR) program has chosen to use the GLASS code for the design of the HWR option of the New Production Reactor (NPR). A substantial body of validation calculations have been performed and additional validation calculations will be performed to qualify the new GLASS multigroup cross section libraries derived from the ENDF/B-5 and 6 nuclear data files. Several improvements to the code are in progress. Many other improvements are planned to bring GLASS up to modern physics and compute technology.

Hootman, H.E. (Westinghouse Savannah River Co., Aiken, SC (United States)); Honeck, H.C. (Computer Application Technology, Inc., Aiken, SC (United States))

1991-01-01T23:59:59.000Z

182

Current status of the GLASS code  

SciTech Connect (OSTI)

This paper summarizes the current status of the Generalized Lattice Analysis SubSystem (GLASS) computer code and its supporting cross section libraries. GLASS was developed at the Savannah River Site (SRS) in the early 1970`s. The GLASS code has been instrumental in supporting safe Heavy Water Reactor (HWR) operations and predicting material production at SRS for more than 20 years. The Department of Energy Office of New Production Reactors (ONPR) program has chosen to use the GLASS code for the design of the HWR option of the New Production Reactor (NPR). A substantial body of validation calculations have been performed and additional validation calculations will be performed to qualify the new GLASS multigroup cross section libraries derived from the ENDF/B-5 and 6 nuclear data files. Several improvements to the code are in progress. Many other improvements are planned to bring GLASS up to modern physics and compute technology.

Hootman, H.E. [Westinghouse Savannah River Co., Aiken, SC (United States); Honeck, H.C. [Computer Application Technology, Inc., Aiken, SC (United States)

1991-12-31T23:59:59.000Z

183

Glass Property Data and Models for Estimating High-Level Waste Glass Volume  

SciTech Connect (OSTI)

This report describes recent efforts to develop glass property models that can be used to help estimate the volume of high-level waste (HLW) glass that will result from vitrification of Hanford tank waste. The compositions of acceptable and processable HLW glasses need to be optimized to minimize the waste-form volume and, hence, to save cost. A database of properties and associated compositions for simulated waste glasses was collected for developing property-composition models. This database, although not comprehensive, represents a large fraction of data on waste-glass compositions and properties that were available at the time of this report. Glass property-composition models were fit to subsets of the database for several key glass properties. These models apply to a significantly broader composition space than those previously publised. These models should be considered for interim use in calculating properties of Hanford waste glasses.

Vienna, John D.; Fluegel, Alexander; Kim, Dong-Sang; Hrma, Pavel R.

2009-10-05T23:59:59.000Z

184

Preparation, properties and chemistry of glass- and glass-ceramic-to-metal seals and coatings  

Science Journals Connector (OSTI)

An overview is given outlining the materials and technologies that have been employed in the preparation of glass- and glass-ceramic-to-metal seals and coatings. Metal/non-metal bonding theories are summarized...

I. W. Donald

1993-06-01T23:59:59.000Z

185

Characterization of New Glass Coated Foam Glass Insulating Tiles by Standard Tests  

Science Journals Connector (OSTI)

A good thermal insulation of buildings is today more and more...1). Among insulating materials, foam glasses are increasing their importance because of...2). Foam glasses are fiber-free inorganic insulation mater...

Andrea Ventrella; Federico Smeacetto…

2012-11-01T23:59:59.000Z

186

Remarks on Liquid Wall Research Mohamed Abdou  

E-Print Network [OSTI]

Wall Research Advances the Science and Energy Goals of Fusion in a Perfect Fit · If we can make liquidRemarks on Liquid Wall Research Mohamed Abdou Professor Mechanical and Aerospace Engineering UCLA Note For recent presentations and papers on liquid wall research by the APEX team see website: http

Abdou, Mohamed

187

68 Glass Technology Vol. 45 No. 2 April 2004 Proc. VII Symp. on Crystallisation in Glasses and Liquids, Sheffield, 69 July 2003 Proc. VII Symp. on Crystallisation in Glasses and Liquids, Sheffield, 69 July 2003 Glass Technol., 2004, 45, 6870  

E-Print Network [OSTI]

68 Glass Technology Vol. 45 No. 2 April 2004 Proc. VII Symp. on Crystallisation in Glasses and Liquids, Sheffield, 6­9 July 2003 Proc. VII Symp. on Crystallisation in Glasses and Liquids, Sheffield, 6­9 July 2003 Glass Technol., 2004, 45, 68­70 The behaviour of a simulant Magnox waste glass

Sheffield, University of

188

Transparant ductility: Reinforcing a structural glass girder:.  

E-Print Network [OSTI]

??Transparency and light are hot items in building design and massive structural elements often form an unwelcome necessity for architects. The structural use of glass… (more)

Rademakers, M.

2009-01-01T23:59:59.000Z

189

120 Years of Optical Glass Science  

Science Journals Connector (OSTI)

An elegant, century-old mathematical relationship, tying the physical properties of a multicomponent glass to those of its chemical components, still provides a powerful tool...

Dragic, Peter D; Ballato, John

2014-01-01T23:59:59.000Z

190

Bioactive Glass Scaffolds for Bone Regeneration  

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

Bioactive Glass Scaffolds for Bone Regeneration Print Natural materials are renowned for their unique combination of outstanding mechanical properties and exquisite microstructure....

191

DEFENSE HIGH LEVEL WASTE GLASS DEGRADATION  

SciTech Connect (OSTI)

The purpose of this Analysis/Model Report (AMR) is to document the analyses that were done to develop models for radionuclide release from high-level waste (HLW) glass dissolution that can be integrated into performance assessment (PA) calculations conducted to support site recommendation and license application for the Yucca Mountain site. This report was developed in accordance with the ''Technical Work Plan for Waste Form Degradation Process Model Report for SR'' (CRWMS M&O 2000a). It specifically addresses the item, ''Defense High Level Waste Glass Degradation'', of the product technical work plan. The AP-3.15Q Attachment 1 screening criteria determines the importance for its intended use of the HLW glass model derived herein to be in the category ''Other Factors for the Postclosure Safety Case-Waste Form Performance'', and thus indicates that this factor does not contribute significantly to the postclosure safety strategy. Because the release of radionuclides from the glass will depend on the prior dissolution of the glass, the dissolution rate of the glass imposes an upper bound on the radionuclide release rate. The approach taken to provide a bound for the radionuclide release is to develop models that can be used to calculate the dissolution rate of waste glass when contacted by water in the disposal site. The release rate of a particular radionuclide can then be calculated by multiplying the glass dissolution rate by the mass fraction of that radionuclide in the glass and by the surface area of glass contacted by water. The scope includes consideration of the three modes by which water may contact waste glass in the disposal system: contact by humid air, dripping water, and immersion. The models for glass dissolution under these contact modes are all based on the rate expression for aqueous dissolution of borosilicate glasses. The mechanism and rate expression for aqueous dissolution are adequately understood; the analyses in this AMR were conducted to provide models and parameter values that can be used to calculate the dissolution rates for the different modes of water contact. The analyses were conducted to identify key aspects of the mechanistic model for glass dissolution to be included in the abstracted models used for PA calculations, evaluate how the models can be used to calculate bounding values of the glass dissolution rates under anticipated water contact modes in the disposal. system, and determine model parameter values for the range of potential waste glass compositions and anticipated environmental conditions. The analysis of a bounding rate also considered the effects of the buildup of glass corrosion products in the solution contacting the glass and potential effects of alteration phase formation. Note that application of the models and model parameter values is constrained to the anticipated range of HLW glass compositions and environmental conditions. The effects of processes inherent to exposure to humid air and dripping water were not modeled explicitly. Instead, the impacts of these processes on the degradation rate were taken into account by using empirically measured parameter values. These include the rates at which water sorbs onto the glass, drips onto the glass, and drips off of the glass. The dissolution rates of glasses that were exposed to humid air and dripping water measured in laboratory tests are used to estimate model parameter values for contact by humid air and dripping water in the disposal system.

W. Ebert

2001-09-20T23:59:59.000Z

192

A two dimensional thermal network model for a photovoltaic solar wall  

SciTech Connect (OSTI)

A two dimensional thermal network model is proposed to predict the temperature distribution for a section of photovoltaic solar wall installed in an outdoor room laboratory in Concordia University, Montreal, Canada. The photovoltaic solar wall is constructed with a pair of glass coated photovoltaic modules and a polystyrene filled plywood board as back panel. The active solar ventilation through a photovoltaic solar wall is achieved with an exhaust fan fixed in the outdoor room laboratory. The steady state thermal network nodal equations are developed for conjugate heat exchange and heat transport for a section of a photovoltaic solar wall. The matrix solution procedure is adopted for formulation of conductance and heat source matrices for obtaining numerical solution of one dimensional heat conduction and heat transport equations by performing two dimensional thermal network analyses. The temperature distribution is predicted by the model with measurement data obtained from the section of a photovoltaic solar wall. The effect of conduction heat flow and multi-node radiation heat exchange between composite surfaces is useful for predicting a ventilation rate through a solar ventilation system. (author)

Dehra, Himanshu [1-140 Avenue Windsor, Lachine, Quebec (Canada)

2009-11-15T23:59:59.000Z

193

Analysis and Research on the Thermal Properties of Energy-efficient Building Glass: A Case Study in PVB Laminated Glass  

E-Print Network [OSTI]

A new kind of PVB-laminated glass is introduced as an energy-efficient building glass. Based on tests and calculations of the shading coefficients of flat glass, LOW-E coated glass and PVB-laminated glass with different thickness, their effects...

Chen, Z.; Meng, Q.

2006-01-01T23:59:59.000Z

194

Copyright the Mathematical Association of America 2003. All rights reserved. Alice through Looking Glass after Looking Glass  

E-Print Network [OSTI]

Glass after Looking Glass: The Mathematics of Mirrors and Kaleidoscopes Roe Goodman 1. ALICE Alice book called Alice Through Looking Glass After Looking Glass. The book opens with Alice in her chamber in front of a peculiar cone­shaped arrangement of three looking glasses. She steps through one

Goodman, Roe

195

Skyrmions from Instantons inside Domain Walls  

SciTech Connect (OSTI)

Some years ago, Atiyah and Manton described a method to construct approximate Skyrmion solutions from Yang-Mills instantons. Here we present a dynamical realization of this construction using domain walls in a five-dimensional gauge theory. The non-Abelian gauge symmetry is broken in each vacuum but restored in the core of the domain wall, allowing instantons to nestle inside the wall. We show that the world volume dynamics of the wall is given by the Skyrme model, including the four-derivative term, and the instantons appear as domain wall Skyrmions.

Eto, Minoru; Nitta, Muneto; Ohashi, Keisuke [Department of Physics, Tokyo Institute of Technology, Tokyo, 152-8551 (Japan); Tong, David [Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge CB3 0WA (United Kingdom)

2005-12-16T23:59:59.000Z

196

Silane Modification of Glass and Silica Surfaces to Obtain Equally...  

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

Silane Modification of Glass and Silica Surfaces to Obtain Equally Oil-Wet Surfaces in Glass-Covered Silicon Micromodel Silane Modification of Glass and Silica Surfaces to Obtain...

197

Radiative Heat Transfer in Enhanced Hydrogen Outgassing of Glass  

E-Print Network [OSTI]

transport in a machinable glass-ceramic”, Journal of Non-in soda-lime-silicate glasses by reaction with hydrogen”,1971. [16] I. Fanderlik, Glass Science and Technology, Vol.

Kitamura, Rei; Pilon, Laurent

2009-01-01T23:59:59.000Z

198

The quantum Biroli-Mézard model: glass transition and superfluidity in a quantum lattice glass model  

E-Print Network [OSTI]

We study the quantum version of a lattice model whose classical counterpart captures the physics of structural glasses. We discuss the role of quantum fluctuations in such systems and in particular their interplay with the amorphous order developed in the glass phase. We show that quantum fluctuations might facilitate the formation of the glass at low enough temperature. We also show that the glass transition becomes a first-order transition between a superfluid and an insulating glass at very low temperature, and is therefore accompanied by phase coexistence between superfluid and glassy regions.

Laura Foini; Guilhem Semerjian; Francesco Zamponi

2010-11-29T23:59:59.000Z

199

Method for heating and forming a glass sheet  

DOE Patents [OSTI]

A method for heating and forming a glass sheet includes the steps of heating a glass sheet to at least a first predetermined temperature, applying microwave energy to the glass sheet to heat the glass sheet to at least a second predetermined temperature, cooling an outer surface of the glass sheet to at least a third predetermined temperature and forming the glass sheet using forming rollers to a predetermined configuration.

Boaz, Premakaran Tucker (Livonia, MI)

1997-01-01T23:59:59.000Z

200

Radiation Induced Nanocrystal Formation in Metallic Glasses  

E-Print Network [OSTI]

The irradiation of metallic glasses to induce nanocrystallization was studied in two metallic glass compositions, Cu50Zr45Ti5 and Zr55Cu30Al10Ni5. Atomic mobility was described using a model based on localized excess free volume due to displace...

Carter, Jesse

2010-01-14T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

Sealing glasses for titanium and titanium alloys  

DOE Patents [OSTI]

Glass compositions containing CaO, Al/sub 2/O/sub 3/, B/sub 2/O/sub 3/, SrO and BaO of various combinations of mole % are provided. These compositions are capable of forming stable glass-to-metal seals with titanium and titanium alloys, for use in components such as seals for battery headers.

Brow, R.K.; Watkins, R.D.

1988-01-21T23:59:59.000Z

202

Sealing glasses for titanium and titanium alloys  

DOE Patents [OSTI]

Glass compositions containing CaO, Al.sub.2 O.sub.3, B.sub.2 O.sub.3, SrO and BaO of various combinations of mole % are provided. These compositions are capable of forming stable glass-to-metal seals with titanium and titanium alloys, for use in components such as seals for battery headers.

Brow, Richard K. (Albuquerque, NM); Watkins, Randall D. (Albuquerque, NM)

1992-01-01T23:59:59.000Z

203

Hydration Aging of Nuclear Waste Glass  

Science Journals Connector (OSTI)

...of Nuclear Waste Glass 10...STEINDLER Chemical Engineering...60439 The aging of simulated nuclear waste glass by...nuclear waste forms can meet...simulated aging reac-tions...whether a waste formn can...pro-jected Nuclear Regulatory...STEINDLEt Chemical Engineering...Basisfor Waste Form Integrity...

J. K. BATES; L. J. JARDINE; M. J. STEINDLER

1982-10-01T23:59:59.000Z

204

Viscous Glass Sealants for SOFC Applications  

SciTech Connect (OSTI)

Two series of silicate glasses that contain gallium as the primary critical component have been identified and optimized for viscous sealing of solid oxide fuel cells operating from 650 to 850°C. Both series of glass sealants crystallize partially upon heat treatment and yield multiphase microstructures that allow viscous flow at temperatures as low as 650°C. A fully amorphous sealant was also developed by isolating, synthesizing and testing a silicate glass of the same composition as the remnant glassy phase in one of the two glass series. Of ~40 glasses tested for longer than 500 hours, a set of 5 glasses has been further tested for up to 1000h in air, wet hydrogen, and against both yttria-stabilized zirconia and aluminized stainless steel. In some cases the testing times reached 2000h. The reactivity testing has provided new insight into the effects of Y, Zr, and Al on bulk and surface crystallization in boro-gallio-silicate glasses, and demonstrated that at least 5 of the newly-developed glasses are viable viscous sealants.

Scott Misture

2012-09-30T23:59:59.000Z

205

Vibration of Glasses containing Effervescing Liquids  

Science Journals Connector (OSTI)

... of the phenomena, he says:—“We must consider what passes in the communication of vibrations through the liquid from one side of the glass to the other. The glass ... it is clear, that if any considerable part of a system be unsusceptible of regular vibration, the whole must be so.” The phenomenon, then, according to this explanation, ...

ALLEN BEAZELEY

1872-07-18T23:59:59.000Z

206

Materials science: To the heart of glass  

Science Journals Connector (OSTI)

... collaborate with archaeologists. One of the best disposal options is to trap the waste in glass and bury it. So when the civilizations of the Middle East first learnt how ... bury it. So when the civilizations of the Middle East first learnt how to make glass at least 4,500 years ago, they unwittingly launched an experiment on the long- ...

Philip Ball

2003-02-20T23:59:59.000Z

207

Manufacture of Sheet and Plate Glass  

Science Journals Connector (OSTI)

... lantern slides and films, the methods in use for the manufacture of sheet and plate glass. The principal raw materials used in the manu facture of sheet and plate ... . The principal raw materials used in the manu facture of sheet and plate glass are sand, soda ash and limestone. These materials, perhaps with the addition of ...

S. E.

1934-03-10T23:59:59.000Z

208

Origin of Libyan Desert Silica-Glass  

Science Journals Connector (OSTI)

... of germanium, using a modified method of Schneider and Sandell4, in Libyan Desert silica-glass, Libyan Desert sandstone, a Libyan Desert quartzite, two Libyan Desert sands, Aouelloul crater ... Desert sandstone, a Libyan Desert quartzite, two Libyan Desert sands, Aouelloul crater 'impactite' glass, two obsidians, the average for tektites from eleven different localities, including all known ...

ALVIN J. COHEN

1959-05-30T23:59:59.000Z

209

New Process of Making Plate Glass  

Science Journals Connector (OSTI)

... , Lancashire, have just announced the successful development of a new process of making plate glass. In the new process the plate ... . In the new process the plate glass is produced with a fire-polished finish, so that the lengthy grinding and polishing ...

1959-01-31T23:59:59.000Z

210

Bioactive Glass Scaffolds for Bone Regeneration  

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

Bioactive Glass Scaffolds for Bioactive Glass Scaffolds for Bone Regeneration Bioactive Glass Scaffolds for Bone Regeneration Print Wednesday, 28 September 2011 00:00 Natural materials are renowned for their unique combination of outstanding mechanical properties and exquisite microstructure. For example, bone, cork, and wood are porous biological materials with high specific stiffness (stiffness per unit weight) and specific strength. The outstanding mechanical properties of these materials are attributed to their anisotropic structures, which have optimized strength-to-density and stiffness-to-density ratios. Working at ALS Beamline 8.3.2, researchers from Berkeley Lab and the Imperial College London have created bioactive glass scaffolds that mirror nature's efficient materials. The three-dimensional glass scaffold is as porous as trabecular bone, has a compressive strength comparable to that of cortical bone, and a strength-to-porosity ratio higher than any previously reported scaffolds.

211

Crystallization in heat-treated fluorochlorozirconate glasses  

SciTech Connect (OSTI)

Crystallization phenomena of fluorochlorozirconate glasses were investigated by means of differential scanning calorimetry and inelastic neutron scattering. The precipitation of barium chloride nanoparticles from the glass matrix upon heat treatment was found to be suppressed when re-melting the glass with a reducing agent but not if the agent was present in the initial synthesis. Addition of small amounts of oxide to the predominantly fluoride melt was found to maintain the presence of nanoparticles but not to induce the predicted phase transition of the barium chloride nanoparticles from hexagonal to orthorhombic structure. Inelastic neutron scattering performed on an as-made glass and a heat-treated glass showed an increase in hardness , consistent with a more ordered structure.

Johnson, Jackie A. [University of Tennessee Space Institute; Weber, Rick [Materials Development, Inc., Evanston, IL; Kolesnikov, Alexander I [ORNL; SCHWEIZER, Stefan [Fraunhofer Center for Silicon Photovoltaics, 06120 Halle, Germany

2009-01-01T23:59:59.000Z

212

Gaseous Sulfate Solubility in Glass: Experimental Method  

SciTech Connect (OSTI)

Sulfate solubility in glass is a key parameter in many commercial glasses and nuclear waste glasses. This report summarizes key publications specific to sulfate solubility experimental methods and the underlying physical chemistry calculations. The published methods and experimental data are used to verify the calculations in this report and are expanded to a range of current technical interest. The calculations and experimental methods described in this report will guide several experiments on sulfate solubility and saturation for the Hanford Waste Treatment Plant Enhanced Waste Glass Models effort. There are several tables of sulfate gas equilibrium values at high temperature to guide experimental gas mixing and to achieve desired SO3 levels. This report also describes the necessary equipment and best practices to perform sulfate saturation experiments for molten glasses. Results and findings will be published when experimental work is finished and this report is validated from the data obtained.

Bliss, Mary

2013-11-30T23:59:59.000Z

213

17 - Immobilisation of Radioactive Waste in Glass  

Science Journals Connector (OSTI)

Radionuclide immobilisation mechanisms are examined for vitreous wasteforms. Both borosilicate and phosphate glasses are described in detail, including the ability of cations to enter into the glass network structure. The role of various cations is considered, including boron, intermediates, and modifiers and elements difficult to immobilise. Selection rules for designing nuclear wasteform silicate glasses are outlined. Glass composite materials to immobilise glass-immiscible waste components are discussed. Both one- and two-stage vitrification technologies are described. An overview is given of the development of vitrification technology, including current operational data on radioactive waste vitrification facilities. Calcination processes are considered in detail, including typical properties of waste calcination products. Recent developments in vitrification are given, including descriptions of cold crucible induction-heated melters and in situ vitrification. Limitations caused by radionuclide volatility are examined. Acceptance criteria are given for vitreous wasteforms.

M.I. Ojovan; W.E. Lee

2014-01-01T23:59:59.000Z

214

Titanium sealing glasses and seals formed therefrom  

DOE Patents [OSTI]

Alkaline-earth lanthanoborate sealing-glass compositions containing CaO, La{sub 2}O{sub 3}, B{sub 2}O{sub 3}, TiO{sub 2} and Al{sub 2}O{sub 3} in various combinations of mole-% are provided. These sealing-glass compositions are useful for forming hermetic glass-to-metal seals with titanium and titanium alloys that have a high aqueous durability for component or device applications requiring exposure to moisture, water or body fluids. Particular applications of the titanium sealing-glass compositions include forming glass-to-metal seals for lithium batteries and implanted biomedical devices (e.g. batteries, pacemakers, defibrillators, pumps). 2 figs.

Brow, R.K.; McCollister, H.L.; Phifer, C.C.; Day, D.E.

1997-12-02T23:59:59.000Z

215

Titanium sealing glasses and seals formed therefrom  

DOE Patents [OSTI]

Alkaline-earth lanthanoborate sealing-glass compositions containing CaO, La.sub.2 O.sub.3, B.sub.2 O.sub.3, TiO.sub.2 and Al.sub.2 O.sub.3 in various combinations of mole-% are provided. These sealing-glass compositions are useful for forming hermetic glass-to-metal seals with titanium and titanium alloys that have a high aqueous durability for component or device applications requiring exposure to moisture, water or body fluids. Particular applications of the titanium sealing-glass compositions include forming glass-to-metal seals for lithium batteries and implanted biomedical devices (e.g. batteries, pacemakers, defibrillators, pumps).

Brow, Richard K. (Albuquerque, NM); McCollister, Howard L. (Albuquerque, NM); Phifer, Carol C. (Albuquerque, NM); Day, Delbert E. (Rolla, MO)

1997-01-01T23:59:59.000Z

216

Glass cullet as a new supplementary cementitious material (SCM).  

E-Print Network [OSTI]

??Finely ground glass has the potential for pozzolanic reactivity and can serve as a supplementary cementitious material (SCM). Glass reaction kinetics depends on both temperature… (more)

Mirzahosseini, Mohammadreza

2014-01-01T23:59:59.000Z

217

Static Temperature Survey At Glass Buttes Area (DOE GTP) | Open...  

Open Energy Info (EERE)

Static Temperature Survey At Glass Buttes Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Static Temperature Survey At Glass...

218

Polyamorphism in a Metallic Glass | Advanced Photon Source  

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

2000 | 1998 | Subscribe to APS Science Highlights rss feed Polyamorphism in a Metallic Glass MARCH 14, 2007 Bookmark and Share Structural modeling of the metallic glass: (a) A...

219

Waste Loading Enhancements for Hanford Low-Activity Waste Glasses  

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

WASTE LOADING ENHANCEMENTS FOR HANFORD LOW-ACTIVITY WASTE GLASSES Albert A. Kruger, Glass Scientist DOE-WTP Project Office Engineering Division US Department of Energy Richland,...

220

Development Wells At Glass Buttes Area (DOE GTP) | Open Energy...  

Open Energy Info (EERE)

Development Wells At Glass Buttes Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Development Wells At Glass Buttes Area (DOE GTP)...

Note: This page contains sample records for the topic "glass curtain walls" 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

Pressure Temperature Log At Glass Buttes Area (DOE GTP) | Open...  

Open Energy Info (EERE)

Pressure Temperature Log At Glass Buttes Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Pressure Temperature Log At Glass Buttes...

222

Cuttings Analysis At Glass Buttes Area (DOE GTP) | Open Energy...  

Open Energy Info (EERE)

Cuttings Analysis At Glass Buttes Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Glass Buttes Area (DOE GTP)...

223

Metal and Glass Manufacturers Reduce Costs by Increasing Energy...  

Broader source: Energy.gov (indexed) [DOE]

Metal and Glass Manufacturers Reduce Costs by Increasing Energy Efficiency in Process Heating Systems Metal and Glass Manufacturers Reduce Costs by Increasing Energy Efficiency in...

224

Breaking through the Glass Ceiling: The Correlation Between the...  

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

through the Glass Ceiling: The Correlation Between the Self-Diffusivity in and Krypton Permeation through Deeply Breaking through the Glass Ceiling: The Correlation Between the...

225

Cold Crucible Induction Melter Studies for Making Glass Ceramic...  

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

Cold Crucible Induction Melter Studies for Making Glass Ceramic Waste Forms: A Feasibility Assessment. Cold Crucible Induction Melter Studies for Making Glass Ceramic Waste Forms:...

226

Aligned Crystalline Semiconducting Film On A Glass Substrate...  

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

Aligned Crystalline Semiconducting Film On A Glass Substrate Aligned Crystalline Semiconducting Film On A Glass Substrate And Method Of Making A semiconducting structure having a...

227

Asahi Glass Co Ltd AGC | Open Energy Information  

Open Energy Info (EERE)

Ltd AGC Jump to: navigation, search Name: Asahi Glass Co Ltd (AGC) Place: Tokyo, Tokyo, Japan Zip: 100-8405 Sector: Efficiency Product: Japanese glass manufacturer; produces cover...

228

Glass for sealing lithium cells  

DOE Patents [OSTI]

Glass compositions resistant to corrosion by lithium cell electrolyte and having an expansion coefficient of 45 to 85 x 10/sup -70/C/sup -1/ have been made with SiO/sub 2/, 25 to 55% by weight; B/sub 2/O/sub 3/, 5 to 12%; Al/sub 2/O/sub 3/, 12 to 35%; CaO, 5 to 15%; MgO, 5 to 15%; SrO, 0 to 10%; and La/sub 2/O/sub 3/, 0 to 5%. Preferred compositions within that range contain 3 to 8% SrO and 0.5 to 2.5% La/sub 2/O/sub 3/.

Leedecke, C.J.

1981-08-28T23:59:59.000Z

229

Solid oxide fuel cell having a glass composite seal  

DOE Patents [OSTI]

A solid oxide fuel cell stack having a plurality of cassettes and a glass composite seal disposed between the sealing surfaces of adjacent cassettes, thereby joining the cassettes and providing a hermetic seal therebetween. The glass composite seal includes an alkaline earth aluminosilicate (AEAS) glass disposed about a viscous glass such that the AEAS glass retains the viscous glass in a predetermined position between the first and second sealing surfaces. The AEAS glass provides geometric stability to the glass composite seal to maintain the proper distance between the adjacent cassettes while the viscous glass provides for a compliant and self-healing seal. The glass composite seal may include fibers, powders, and/or beads of zirconium oxide, aluminum oxide, yttria-stabilized zirconia (YSZ), or mixtures thereof, to enhance the desirable properties of the glass composite seal.

De Rose, Anthony J.; Mukerjee, Subhasish; Haltiner, Jr., Karl Jacob

2013-04-16T23:59:59.000Z

230

Quantum Fusion of Domain Walls with Fluxes  

E-Print Network [OSTI]

We study how fluxes on the domain wall world volume modify quantum fusion of two distant parallel domain walls into a composite wall. The elementary wall fluxes can be separated into parallel and antiparallel components. The parallel component affects neither the binding energy nor the process of quantum merger. The antiparallel fluxes, instead, increase the binding energy and, against naive expectations, suppress quantum fusion. In the small flux limit we explicitly find the bounce solution and the fusion rate as a function of the flux. We argue that at large (antiparallel) fluxes there exists a critical value of the flux (versus the difference in the wall tensions), which switches off quantum fusion altogether. This phenomenon of flux-related wall stabilization is rather peculiar: it is unrelated to any conserved quantity. Our consideration of the flux-related all stabilization is based on substantiated arguments that fall short of complete proof.

S. Bolognesi; M. Shifman; M. B. Voloshin

2009-07-20T23:59:59.000Z

231

Panelized wall system with foam core insulation  

DOE Patents [OSTI]

A wall system includes a plurality of wall members, the wall members having a first metal panel, a second metal panel, and an insulating core between the first panel and the second panel. At least one of the first panel and the second panel include ridge portions. The insulating core can be a foam, such as a polyurethane foam. The foam can include at least one opacifier to improve the k-factor of the foam.

Kosny, Jan (Oak Ridge, TN); Gaskin, Sally (Houston, TX)

2009-10-20T23:59:59.000Z

232

First wall for polarized fusion reactors  

DOE Patents [OSTI]

Depolarization mechanisms arising from the recycling of the polarized fuel at the limiter and the first-wall of a fusion reactor are greater than those mechanisms in the plasma. Rapid depolarization of the plasma is prevented by providing a first-wall or first-wall coating formed of a low-Z, non-metallic material having a depolarization rate greater than 1 sec.sup.-1.

Greenside, Henry S. (Cranbury, NJ); Budny, Robert V. (Princeton, NJ); Post, Jr., Douglass E. (Buttonwood, CT)

1988-01-01T23:59:59.000Z

233

Critical review of glass performance modeling  

SciTech Connect (OSTI)

Borosilicate glass is to be used for permanent disposal of high-level nuclear waste in a geologic repository. Mechanistic chemical models are used to predict the rate at which radionuclides will be released from the glass under repository conditions. The most successful and useful of these models link reaction path geochemical modeling programs with a glass dissolution rate law that is consistent with transition state theory. These models have been used to simulate several types of short-term laboratory tests of glass dissolution and to predict the long-term performance of the glass in a repository. Although mechanistically based, the current models are limited by a lack of unambiguous experimental support for some of their assumptions. The most severe problem of this type is the lack of an existing validated mechanism that controls long-term glass dissolution rates. Current models can be improved by performing carefully designed experiments and using the experimental results to validate the rate-controlling mechanisms implicit in the models. These models should be supported with long-term experiments to be used for model validation. The mechanistic basis of the models should be explored by using modern molecular simulations such as molecular orbital and molecular dynamics to investigate both the glass structure and its dissolution process.

Bourcier, W.L. [Lawrence Livermore National Lab., CA (United States)

1994-07-01T23:59:59.000Z

234

Energy implications of glass-container recycling  

SciTech Connect (OSTI)

This report addresses the question of whether glass-container recycling actually saves energy. Glass-container production in 1991 was 10{sup 7} tons, with cullet making up about 30% of the input to manufacture. Two-thirds of the cullet is postconsumer waste; the remainder is in-house scrap (rejects). Most of the glass recycled is made into new containers. Total primary energy consumption includes direct process-energy use by the industry (adjusted to account for the efficiency of fuel production) plus fuel and raw-material transportation and production energies; the grand total for 1991 is estimated to be about 168 {times} 10{sup 12} Btu. The total primary energy use decreases as the percent of glass recycled rises, but the maximum energy saved is only about 13%. If distance to the landfill is kept fixed and that to the recovery facility multiplied by about eight, to 100 mi, a break-even point is reached, and recycling saves no energy. Previous work has shown that to save energy when using glass bottles, reuse is the clear choice. Recycling of glass does not save much energy or valuable raw material and does not reduce air or water pollution significantly. The most important impacts are the small reduction of waste sent to the landfill and increased production rates at glass plants.

Gaines, L.L.; Mintz, M.M. [Argonne National Lab., IL (United States)] [Argonne National Lab., IL (United States)

1994-03-01T23:59:59.000Z

235

Skyrmions from Instantons inside Domain Walls  

E-Print Network [OSTI]

Some years ago, Atiyah and Manton described a method to construct approximate Skyrmion solutions from Yang-Mills instantons. Here we present a dynamical realization of this construction using domain walls in a five-dimensional gauge theory. The non-abelian gauge symmetry is broken in each vacuum but restored in the core of the domain wall, allowing instantons to nestle inside the wall. We show that the worldvolume dynamics of the wall is given by the Skyrme model, including the four-derivative term, and the instantons appear as Skyrmions.

Minoru Eto; Muneto Nitta; Keisuke Ohashi; David Tong

2005-08-18T23:59:59.000Z

236

Modeling Drilled Shafts in MSE Block Walls  

E-Print Network [OSTI]

ACKNOWLEDGEMENTS xii ABSTRACT xiii 1 INTRODUCTION 1 2 LITERATURE REVIEW 3 2.1 Physical Testing 3 2.1.1 MSE Wall Design (FHWA) 3 2.1.2 Design of Laterally Loaded Shafts 6 2.1.3 Design of Drilled Shafts Supporting Sound Walls 7 2.1.4 Topics Related to MSE... Wall Interaction with Bridges 8 2.1.5 Lateral Loading of Facing and Retained Soil 9 2.1.6 Physical Test Results 11 2.1.6.1 Construction and Instrumentation of Test Wall 12 2.1.6.2 Physical Testing and Results 17 2.2 Numerical Approaches 22 2...

Pierson, Matthew Charles

2010-09-01T23:59:59.000Z

237

Multiple moving wall dry coal extrusion pump  

DOE Patents [OSTI]

A pump for transporting particulate material includes a passageway defined on each side between an inlet and an outlet by a moving wall.

Fitzsimmons, Mark Andrew

2013-05-14T23:59:59.000Z

238

First wall for polarized fusion reactors  

DOE Patents [OSTI]

A first-wall or first-wall coating for use in a fusion reactor having polarized fuel may be formed of a low-Z non-metallic material having slow spin relaxation, i.e., a depolarization rate greater than 1 sec/sup -1/. Materials having these properties include hydrogenated and deuterated amorphous semiconductors. A method for preventing the rapid depolarization of a polarized plasma in a fusion device may comprise the step of providing a first-wall or first-wall coating formed of a low-Z, non-metallic material having a depolarization rate greater than 1 sec/sup -1/.

Greenside, H.S.; Budny, R.V.; Post, D.E. Jr.

1985-01-29T23:59:59.000Z

239

Glass melter off-gas system  

DOE Patents [OSTI]

Apparatus and method for melting glass in a glass melter in such a way as to reduce deposition of particulates in the off-gas duct. Deposit accumulation is reduced by achieving an off-gas velocity above approximately 15 meters/second and an off-gas temperature as close as possible to, but not higher than, the glass softening point. Because the deposits are largely water-soluble, those that do form on the interior surface of the duct can be readily removed by injecting water or steam directly into the off-gas duct from its entrance or exit.

Jantzen, Carol M. (Aiken, SC)

1997-01-01T23:59:59.000Z

240

Beetle Kill Wall at NREL  

ScienceCinema (OSTI)

When it comes to designing an interior decorative feature for one of the most energy efficient office buildings in the world, very few would consider bringing in a beetle to do the job. But thats what happened at the U.S. Department of Energy's (DOE) Research Support Facility (RSF) located on the National Renewable Energy Laboratory (NREL) campus.In June, the RSF will become home to more than 800 workers from DOE and NREL and building visitors will be greeted with a soaring, two-story high wall entirely covered with wood harvested from the bark beetle infestation that has killed millions of pine trees in the Western U.S. But, the use of beetle kill wood is just one example of the resources being leveraged to make the RSF a model for sustainability and one more step toward NRELs goal to be a net zero energy campus.

None

2013-05-29T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

Virtual gap dielectric wall accelerator  

DOE Patents [OSTI]

A virtual, moving accelerating gap is formed along an insulating tube in a dielectric wall accelerator (DWA) by locally controlling the conductivity of the tube. Localized voltage concentration is thus achieved by sequential activation of a variable resistive tube or stalk down the axis of an inductive voltage adder, producing a "virtual" traveling wave along the tube. The tube conductivity can be controlled at a desired location, which can be moved at a desired rate, by light illumination, or by photoconductive switches, or by other means. As a result, an impressed voltage along the tube appears predominantly over a local region, the virtual gap. By making the length of the tube large in comparison to the virtual gap length, the effective gain of the accelerator can be made very large.

Caporaso, George James; Chen, Yu-Jiuan; Nelson, Scott; Sullivan, Jim; Hawkins, Steven A

2013-11-05T23:59:59.000Z

242

SLUDGE BATCH 7B GLASS VARIABILITY STUDY  

SciTech Connect (OSTI)

The Defense Waste Processing Facility (DWPF) is preparing to initiate processing Sludge Batch 7b (SB7b). In support of the upcoming processing, the Savannah River National Laboratory (SRNL) provided a recommendation to utilize Frits 418 with a 6% Na{sub 2}O addition (26 wt% Na{sub 2}O in sludge) and 702 with a 4% Na{sub 2}O addition (24 wt% Na{sub 2}O in sludge) to process SB7b. This recommendation was based on assessments of the compositional projections for SB7b available at the time from the Savannah River Remediation (SRR). To support qualification of SB7b, SRNL executed a variability study to assess the applicability of the current durability models for SB7b. The durability models were assessed over the expected composition range of SB7b, including potential caustic additions, combined with Frits 702 and 418 over a 32-40% waste loading (WL) range. Thirty four glasses were selected based on Frits 418 and 702 coupled with the sludge projections with an additional 4-6% Na{sub 2}O to reflect the potential caustic addition. Six of these glasses, based on average nominal sludge compositions including the appropriate caustic addition, were developed for both Frit 418 and Frit 702 at 32, 36 and 40% WL to provide coverage in the center of the anticipated SB7b glass region. All glasses were fabricated and characterized using chemical composition analysis, X-ray diffraction (XRD) and the Product Consistency Test (PCT). To comply with the DWPF Glass Product Control Program, a total of thirty four glasses were fabricated to assess the applicability of the current DWPF PCCS durability models. Based on the measured PCT response, all of the glasses were acceptable with respect to the Environmental Assessment (EA) benchmark glass regardless of thermal history. The NL[B] values of the SB7b variability study glasses were less than 1.99 g/L as compared to 16.695 g/L for EA. A small number of the D-optimally selected 'outer layer' extreme vertices (EV) glasses were not predictable using the current Product Composition Control System (PCCS) models for durability, but were acceptable compared to the EA glass when tested. These glasses fell outside of the lower 95% confidence band, which demonstrates conservatism in the model. A few of the glasses fell outside of the upper 95% confidence band; however, these particular glasses have normalized release values that were much lower than the values of EA and should be of no practical concern. Per the requirements of the DWPF Glass Product Control Program, the PCCS durability models have been shown to be applicable to the SB7b sludge system with a range of Na{sub 2}O concentrations blended with Frits 418 or 702. PCT results from the glasses fabricated as part of the variability study were shown to be predictable by the current DWPF PCCS models and/or acceptable with respect to the EA benchmark glass regardless of thermal history or compositional view.

Johnson, F.; Edwards, T.

2011-10-25T23:59:59.000Z

243

Glass Needs for a Growing Photovoltaics Industry Keith Burrows1  

E-Print Network [OSTI]

1 Glass Needs for a Growing Photovoltaics Industry Keith Burrows1 and Vasilis Fthenakis1,2* 1, the demand for glass for the solar industry will far exceed the current supply, and thousands of new float-glass an opportunity for the solar industry to obtain products better suited to their needs, such as low-iron glass

244

Finding Glass Kenton McHenry, Jean Ponce  

E-Print Network [OSTI]

Finding Glass Kenton McHenry, Jean Ponce Beckman Institute University of Illinois Urbana, IL 61801. This paper addresses the problem of finding glass ob- jects in images. Visual cues obtained by combining with the strong highlights typical of glass surfaces are used to train a hierarchy of classifiers, identify glass

Forsyth, David

245

Non-photorealistic Rendering of Images as Evolutionary Stained Glass  

E-Print Network [OSTI]

Non-photorealistic Rendering of Images as Evolutionary Stained Glass Daniel Ashlock Mathematics glass. A collection of points that are the centers of weighted Voronoi tilings are evolved to minimize. A fractal model of stained glass is then run to create a stained glass texture with a similar average color

Ashlock, Dan

246

Glass/polymer composites and methods of making  

DOE Patents [OSTI]

The present invention relates to new glass/polymer composites and methods for making them. More specifically, the invention is glass/polymer composites having phases that are at the molecular level and thereby practicably indistinguishable. The invention further discloses making molecular phase glass/polymer composites by mixing a glass and a polymer in a compatible solvent.

Samuels, W. D. (Richland, WA); Exarhos, Gregory J. (Richland, WA)

1995-01-01T23:59:59.000Z

247

Dynamics of the Structural Glass Transition and the p-Spin—Interaction Spin-Glass Model  

Science Journals Connector (OSTI)

The mathematical structure of the dynamical theory for the soft-spin version of the p-spin-interaction (p>2) spin-glass model is related to that for the dynamical theories of the structural glass transition. The phase transitions predicted by both theories are discussed. The spin-glass transition predicted by the dynamical theory is related to a broken-replica-symmetry equilibrium calculation.

T. R. Kirkpatrick and D. Thirumalai

1987-05-18T23:59:59.000Z

248

Bioactive Glass Scaffolds for Bone Regeneration  

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

Bioactive Glass Scaffolds for Bone Regeneration Print Bioactive Glass Scaffolds for Bone Regeneration Print Natural materials are renowned for their unique combination of outstanding mechanical properties and exquisite microstructure. For example, bone, cork, and wood are porous biological materials with high specific stiffness (stiffness per unit weight) and specific strength. The outstanding mechanical properties of these materials are attributed to their anisotropic structures, which have optimized strength-to-density and stiffness-to-density ratios. Working at ALS Beamline 8.3.2, researchers from Berkeley Lab and the Imperial College London have created bioactive glass scaffolds that mirror nature's efficient materials. The three-dimensional glass scaffold is as porous as trabecular bone, has a compressive strength comparable to that of cortical bone, and a strength-to-porosity ratio higher than any previously reported scaffolds.

249

Bioactive Glass Scaffolds for Bone Regeneration  

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

Bioactive Glass Scaffolds for Bone Regeneration Print Bioactive Glass Scaffolds for Bone Regeneration Print Natural materials are renowned for their unique combination of outstanding mechanical properties and exquisite microstructure. For example, bone, cork, and wood are porous biological materials with high specific stiffness (stiffness per unit weight) and specific strength. The outstanding mechanical properties of these materials are attributed to their anisotropic structures, which have optimized strength-to-density and stiffness-to-density ratios. Working at ALS Beamline 8.3.2, researchers from Berkeley Lab and the Imperial College London have created bioactive glass scaffolds that mirror nature's efficient materials. The three-dimensional glass scaffold is as porous as trabecular bone, has a compressive strength comparable to that of cortical bone, and a strength-to-porosity ratio higher than any previously reported scaffolds.

250

Bioactive Glass Scaffolds for Bone Regeneration  

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

Bioactive Glass Scaffolds for Bone Regeneration Print Bioactive Glass Scaffolds for Bone Regeneration Print Natural materials are renowned for their unique combination of outstanding mechanical properties and exquisite microstructure. For example, bone, cork, and wood are porous biological materials with high specific stiffness (stiffness per unit weight) and specific strength. The outstanding mechanical properties of these materials are attributed to their anisotropic structures, which have optimized strength-to-density and stiffness-to-density ratios. Working at ALS Beamline 8.3.2, researchers from Berkeley Lab and the Imperial College London have created bioactive glass scaffolds that mirror nature's efficient materials. The three-dimensional glass scaffold is as porous as trabecular bone, has a compressive strength comparable to that of cortical bone, and a strength-to-porosity ratio higher than any previously reported scaffolds.

251

Bioactive Glass Scaffolds for Bone Regeneration  

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

Bioactive Glass Scaffolds for Bone Regeneration Print Bioactive Glass Scaffolds for Bone Regeneration Print Natural materials are renowned for their unique combination of outstanding mechanical properties and exquisite microstructure. For example, bone, cork, and wood are porous biological materials with high specific stiffness (stiffness per unit weight) and specific strength. The outstanding mechanical properties of these materials are attributed to their anisotropic structures, which have optimized strength-to-density and stiffness-to-density ratios. Working at ALS Beamline 8.3.2, researchers from Berkeley Lab and the Imperial College London have created bioactive glass scaffolds that mirror nature's efficient materials. The three-dimensional glass scaffold is as porous as trabecular bone, has a compressive strength comparable to that of cortical bone, and a strength-to-porosity ratio higher than any previously reported scaffolds.

252

Glass Buttes Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Glass Buttes Geothermal Area Glass Buttes Geothermal Area (Redirected from Glass Buttes Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Glass Buttes Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (1) 9 Exploration Activities (14) 10 References Area Overview Geothermal Area Profile Location: Oregon Exploration Region: Cascades GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

253

Preparation of fullerene/glass composites  

DOE Patents [OSTI]

Synthesis of fullerene/glass composites is described. A direct method for preparing solid solutions of C{sub 60} in silicon dioxide (SiO{sub 2}) glass matrices by means of sol-gel chemistry is described. In order to produce highly concentrated fullerene-sol-gel-composites it is necessary to increase the solubility of these ``guests`` in a delivery solvent which is compatible with the starter sol (receiving solvent). Sonication results in aggregate disruption by treatment with high frequency sound waves, thereby accelerating the rate of hydrolysis of the alkoxide precursor, and the solution process for the C{sub 60}. Depending upon the preparative procedure, C{sub 60} dispersed within the glass matrix as microcrystalline domains, or dispersed as true molecular solutions of C{sub 60} in a solid glass matrix, is generated by the present method.

Mattes, B.R.; McBranch, D.W.; Robinson, J.M.; Koskelo, A.C.; Love, S.P.

1995-05-30T23:59:59.000Z

254

Neutron Brillouin scattering in a metallic glass  

SciTech Connect (OSTI)

The dispersion of collective modes in a metallic glass (Mg{sub 70}Zn{sub 30}) measured earlier at the thermal neutron time-of-flight spectrometer IN4 of the HFR of the ILL could be extended towards lower momentum transfers down to the first pseudo-Brillouin zone for the first time. This extension to momentum transfer not accessible up to now was possible using the highly resolving time-of-flight spectrometer HET of the new spallation source ISIS. In the region of overlap the two parts of the dispersion determined with different samples of the same metallic glass on different instruments agree very well. Also the earlier discrepancies with the dispersion determined for this metallic glass from a computer simulation could be nearly completely eliminated due to a more recent and more complete investigations of this glass.

Suck, J.B. (Kernforschungszentrum Karlsruhe GmbH (Germany). Inst. fuer Nukleare Festkoerperphysik); Egelstaff, P.A. (Guelph Univ., ON (Canada). Dept. of Physics); Robinson, R.A.; Sivia, D.S. (Los Alamos National Lab., NM (United States)); Taylor, A.D. (Rutherford Appleton Lab., Chilton (United Kingdom))

1991-01-01T23:59:59.000Z

255

Measurement of DWPF glass viscosity - Final Report  

SciTech Connect (OSTI)

This report details the results of a scoping study funded by the Defense Waste Processing Facility (DWPF) for the measurement of melt viscosities for simulated glasses representative of Macrobatch 2 (Tank 42/51 feed).

Harbour, J.R.

2000-02-17T23:59:59.000Z

256

A photo-stable chalcogenide glass  

Science Journals Connector (OSTI)

Photo-darkening and photo-bleaching are well known phenomena in As-Se and Ge-Se chalcogenide glasses, respectively. Consequently, a systematic dependence of photo-induced optical...

Yang, Guang; Jain, Himanshu; Ganjoo, Ashtosh; Zhao, Donghui; Xu, Yinsheng; Zeng, Huidan; Chen, Guorong

2008-01-01T23:59:59.000Z

257

Energy Assessment Protocol for Glass Furnaces  

E-Print Network [OSTI]

The Department of Energy funded development of a methodology that could be used by glass producers to increase furnace efficiency, and that could serve as a model for other energy-intensive industries. Accordingly, a team comprising PPG Industries...

Plodinec, M. J.; Kauffman, B. M.; Norton, O. P.; Richards, C.; Connors, J.; Wishnick, D.

2005-01-01T23:59:59.000Z

258

Glass bead micromodel study of solute transport  

E-Print Network [OSTI]

This study presents the quantification of glass bead micromodel experiments through a combination of computational modeling and experimental analysis. The computational model simulates two-dimensional solute flow through porous media using a finite...

Fedirchuk, Paula Diane

1995-01-01T23:59:59.000Z

259

Preparation of fullerene/glass composites  

DOE Patents [OSTI]

Synthesis of fullerene/glass composites. A direct method for preparing solid solutions of C.sub.60 in silicon dioxide (SiO.sub.2) glass matrices by means of sol-gel chemistry is described. In order to produce highly concentrated fullerene-sol-gel-composites it is necessary to increase the solubility of these "guests" in a delivery solvent which is compatible with the starter sol (receiving solvent). Sonication results in aggregate disruption by treatment with high frequency sound waves, thereby accelerating the rate of hydrolysis of the alkoxide precursor, and the solution process for the C.sub.60. Depending upon the preparative procedure, C.sub.60 dispersed within the glass matrix as microcrystalline domains, or dispersed as true molecular solutions of C.sub.60 in a solid glass matrix, is generated by the present method.

Mattes, Benjamin R. (Santa Fe, NM); McBranch, Duncan W. (Santa Fe, NM); Robinson, Jeanne M. (Los Alamos, NM); Koskelo, Aaron C. (Los Alamos, NM); Love, Steven P. (Los Alamos, NM)

1995-01-01T23:59:59.000Z

260

Quarks in the looking glass | Jefferson Lab  

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

Quarks in the looking glass Jefferson Lab's Experimental Hall A The electron-quark scattering experiment was carried out in Jefferson Lab's Experimental Hall A. In this view from...

Note: This page contains sample records for the topic "glass curtain walls" 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

Frequency-dependent conductivity of electron glasses  

Science Journals Connector (OSTI)

Results of dc and frequency-dependent conductivity in the quantum limit—i.e., ??>kBT—for a broad range of dopant concentrations in nominally uncompensated, crystalline phosphorous-doped silicon and amorphous niobium-silicon alloys are reported. These materials fall under the general category of disordered insulating systems, which are referred to as electron glasses. Using microwave resonant cavities and quasioptical millimeter-wave spectroscopy we are able to study the frequency-dependent response on the insulating side of the metal-insulator transition. We identify a quantum critical regime, a Fermi glass regime, and a Coulomb glass regime. Our phenomenological results lead to a phase diagram description, or taxonomy, of the electrodynamic response of electron glass systems.

E. Helgren; N. P. Armitage; G. Grüner

2004-01-13T23:59:59.000Z

262

Remarks on Liquid Wall Research Mohamed Abdou  

E-Print Network [OSTI]

Remarks on Liquid Wall Research Mohamed Abdou Professor Mechanical and Aerospace Engineering UCLA physicists and engineering scientists · Enhances synergism between IFE and MFE · Provides excellent disciplines. #12;Several "Ideas" Have Been Proposed for Liquid Walls Fluids 1) High-conductivity, low Pr

California at Los Angeles, University of

263

Equivalence of Glass Transition and Colloidal Glass Transition in the Hard-Sphere Limit Thomas K. Haxton,2  

E-Print Network [OSTI]

Equivalence of Glass Transition and Colloidal Glass Transition in the Hard-Sphere Limit Ning Xu,1 that the slowing of the dynamics in simulations of several model glass-forming liquids is equivalent to the hard-sphere glass transition in the low-pressure limit. In this limit, we find universal behavior of the relaxation

Weeks, Eric R.

264

High expansion, lithium corrosion resistant sealing glasses  

DOE Patents [OSTI]

Glass compositions containing CaO, Al.sub.2 O.sub.3, B.sub.2 O.sub.3, SrO and BaO in various combinations of mole % are provided. These compositions are capable of forming stable glass-to-metal seals with pin materials of 446 Stainless Steel and Alloy-52 rather than molybdenum, for use in harsh chemical environments, specifically in lithium batteries.

Brow, Richard K. (Albuquerque, NM); Watkins, Randall D. (Albuquerque, NM)

1991-01-01T23:59:59.000Z

265

Sealed glass coating of high temperature ceramic superconductors  

DOE Patents [OSTI]

A method and article of manufacture of a lead oxide based glass coating on a high temperature superconductor. The method includes preparing a dispersion of glass powders in a solution, applying the dispersion to the superconductor, drying the dispersion before applying another coating and heating the glass powder dispersion at temperatures below oxygen diffusion onset and above the glass melting point to form a continuous glass coating on the superconductor to establish compressive stresses which enhance the fracture strength of the superconductor.

Wu, Weite (Tainan, TW); Chu, Cha Y. (Garnerville, NY); Goretta, Kenneth C. (Downers Grove, IL); Routbort, Jules L. (Darien, IL)

1995-01-01T23:59:59.000Z

266

Wall System Innovations: Familiar Materials, Better Performance  

Broader source: Energy.gov (indexed) [DOE]

1 1 Wall System Innovation Vladimir Kochkin Joseph Wiehagen April 2013 Wall Innovation Metrics  High R (thermal and air barrier)  High Performance  Durable, structural  Build-able  Low transition risk to builders  50% Building America Goal  ≈ R25+ (CZ 4 and higher) 2 Background  Technologies for high-R walls have been proposed and used for over 25 years  But real market penetration is very low  Often the last EE measure implemented by builders (e.g. E*) 3 Background  High-R wall solutions have not achieved a broad level of standardization and commonality  A large set of methods and materials entered the market  Multiple and conflicting details  Wall characteristics are more critical = RISK 4 New Home Starts -

267

High thermal expansion, sealing glass  

DOE Patents [OSTI]

A glass composition is described for hermetically sealing to high thermal expansion materials such as aluminum alloys, stainless steels, copper, and copper/beryllium alloys, which includes between about 10 and about 25 mole percent Na[sub 2]O, between about 10 and about 25 mole percent K[sub 2]O, between about 5 and about 15 mole percent Al[sub 2]O[sub 3], between about 35 and about 50 mole percent P[sub 2]O[sub 5] and between about 5 and about 15 mole percent of one of PbO, BaO, and mixtures thereof. The composition, which may also include between 0 and about 5 mole percent Fe[sub 2]O[sub 3] and between 0 and about 10 mole percent B[sub 2]O[sub 3], has a thermal expansion coefficient in a range of between about 160 and 210[times]10[sup [minus]7]/C and a dissolution rate in a range of between about 2[times]10[sup [minus]7] and 2[times]10[sup [minus]9]g/cm[sup 2]-min. This composition is suitable to hermetically seal to metallic electrical components which will be subjected to humid environments over an extended period of time.

Brow, R.K.; Kovacic, L.

1993-11-16T23:59:59.000Z

268

Hysteretic Optimization For Spin Glasses  

E-Print Network [OSTI]

The recently proposed Hysteretic Optimization (HO) procedure is applied to the 1D Ising spin chain with long range interactions. To study its effectiveness, the quality of ground state energies found as a function of the distance dependence exponent, $\\sigma$, is assessed. It is found that the transition from an infinite-range to a long-range interaction at $\\sigma=0.5$ is accompanied by a sharp decrease in the performance . The transition is signaled by a change in the scaling behavior of the average avalanche size observed during the hysteresis process. This indicates that HO requires the system to be infinite-range, with a high degree of interconnectivity between variables leading to large avalanches, in order to function properly. An analysis of the way auto-correlations evolve during the optimization procedure confirm that the search of phase space is less efficient, with the system becoming effectively stuck in suboptimal configurations much earlier. These observations explain the poor performance that HO obtained for the Edwards-Anderson spin glass on finite-dimensional lattices, and suggest that its usefulness might be limited in many combinatorial optimization problems.

B. Goncalves; S. Boettcher

2007-12-10T23:59:59.000Z

269

Natural glass analogues to alteration of nuclear waste glass: A review and recommendations for further study  

SciTech Connect (OSTI)

The purpose of this report is to review previous work on the weathering of natural glasses; and to make recommendations for further work with respect to studying the alteration of natural glasses as it relates quantifying rates of dissolution. the first task was greatly simplified by the published papers of Jercinovic and Ewing (1987) and Byers, Jercinovic, and Ewing (1987). The second task is obviously the more difficult of the two and the author makes no claim of completeness in this regard. Glasses weather in the natural environment by reacting with aqueous solutions producing a rind of secondary solid phases. It had been proposed by some workers that the thickness of this rind is a function of the age of the glass and thus could be used to estimate glass dissolution rates. However, Jercinovic and Ewing (1987) point out that in general the rind thickness does not correlate with the age of the glass owing to the differences in time of contact with the solution compared to the actual age of the sample. It should be noted that the rate of glass dissolution is also a function of the composition of both the glass and the solution, and the temperature. Quantification of the effects of these parameters (as well as time of contact with the aqueous phase and flow rates) would thus permit a prediction of the consequences of glass-fluid interactions under varying environmental conditions. Defense high- level nuclear waste (DHLW), consisting primarily of liquid and sludge, will be encapsulated by and dispersed in a borosilicate glass before permanent storage in a HLW repository. This glass containing the DHLW serves to dilute the radionuclides and to retard their dispersion into the environment. 318 refs.

McKenzie, W.F.

1990-01-01T23:59:59.000Z

270

Bose glass and Mott glass of quasiparticles in a doped quantum magnet  

Science Journals Connector (OSTI)

... has been predicted that for strongly interacting bosons, Anderson localization manifests itself in the Bose glass: in this phase, the collective modes of the system—and not the individual particles ... interacting Anderson insulator to an interacting superfluid condensate, or from a superfluid to a Bose glass. Such a transition is relevant for a large variety of physical systems, including superfluid ...

Rong Yu; Liang Yin; Neil S. Sullivan; J. S. Xia; Chao Huan; Armando Paduan-Filho; Nei F. Oliveira Jr; Stephan Haas; Alexander Steppke; Corneliu F. Miclea; Franziska Weickert; Roman Movshovich; Eun-Deok Mun; Brian L. Scott; Vivien S. Zapf; Tommaso Roscilde

2012-09-19T23:59:59.000Z

271

FREE CONVECTIVE LAMINAR FLOW WITHIN THE TROMBE WALL CHANNEL  

E-Print Network [OSTI]

LAMINAR FLOW WITHIN THE TROMBE WALL CHANNEL H. Akbarf andLAMINAR FLOW WITHIN THE TROMBE WALL CHANNEL H. Akbari andchannel surfaces of the Trombe wall has been investigated.

Akbari, H.

2011-01-01T23:59:59.000Z

272

Glass and glass-derivative seals for use in energy-efficient fuel cells and lamps  

SciTech Connect (OSTI)

For solid oxide fuel cells (SOFC), a series of 18 sealing glasses have been prepared and characterized. From the whole design space, several glasses were ''downselected'' and studied in detail to describe their behaviors in simulated fuel cell environments. One of the glasses was found to outperform all others, including the well-known G18 sealant developed at Pacific Northwest National Laboratory. The new glass composition showed lower bulk electrical conductivity, excellent sealing and wetting behavior when sealing under applied load, and qualitatively superior performance when exposed to wet hydrogen for 800 hours. Traditional melting was used to prepare all of the glasses that were studied in detail. The sol-gel approach was used to synthesize several compositions, but it was found that the glasses crystallized very rapidly during heating, precluding sealing. The glass characterization included measurements of the viscosity and thermal expansion of the glasses, as well as the thermal expansion of the partly crystalline glass ceramics. In addition, the wetting and sintering behavior of all glasses has been measured, as well as the crystallization behavior. The time and temperature at which crystalline phases form from the glasses has been determined for all of the glasses. Each glass ceramic contains at least two crystalline phases, and most of the crystalline phases have been positively identified. The body of fundamental data provides a platform for future developments for high temperature sealants, and the newly-developed glass compositions appear promising for large-scale testing. The second component of the work, focused on seals for higher-temperature discharge lighting, has focused on determining the phase relations in the yttria-alumina-silica system at various silica levels. Functional testing of one of the candidate sealants demonstrated that it performs well in current HID lighting applications. Further testing is required to evaluate its performance in next-generation lamps that operate at higher temperatures, but the baseline phase equilibria and crystallization behavior has been established for additional development. Again, traditional melting and sol-gel synthesis have been employed, and the sol-gel method was successful for preparing new phases that were discovered during the work. Four new phases have been identified and synthesized in pure form, from which full structure solutions were obtained as well as the anisotropic thermal expansion for each phase.

Scott Misture; Arun Varshineya; Matthew Hall; Sylvia DeCarr; Steve Bancheri

2005-07-28T23:59:59.000Z

273

Transport properties of lithium- lead-vanadium-telluride glass and glass ceramics  

SciTech Connect (OSTI)

Glasses with the chemical composition 35Li{sub 2}O-(45-x)V{sub 2}O{sub 5?}20PbO-xTeO{sub 2} (where x = 2.5, 5, 7.5, 10, 15 mol %) have prepared by conventional melt quenching method. The electrical conductivity of Li{sup +} ion conducting lead vanadium telluride glass samples has been carried out both as a function of temperature and frequency in the temperature range 503K-563K and over frequencies 40 Hz to 10 MHz. The electronic conduction has been observed in the present systems. When these samples annealed around 400°C for 2hour become the glass ceramic, which also shows increase tendency of conductivity. SEM confines glass and glass ceramic nature of the prepared samples.

Sathish, M., E-mail: sathishphy79@gmail.com [Department of Physics, GOVT first grade College, Doddaballapur-561203 (India); Eraiah, B., E-mail: eraiah@rediffmail.com [Department of Physics, Bangalore University, Bangalore-560056, India (India)

2014-04-24T23:59:59.000Z

274

8 - Bioactive glass and glass–ceramic foam scaffolds for bone tissue restoration  

Science Journals Connector (OSTI)

Abstract: One of the major goals of bone tissue engineering is the development of appropriate porous biomaterials (scaffolds) that can stimulate the body’s own regenerative mechanism, to induce tissue healing and self-repair. Bioactive glasses are excellent candidates for producing 3-D scaffolds, as their properties can be finely tailored depending on the glass composition, and they can bond to bone, inducing osteogenesis at the defect site. This chapter is focused on glass/glass–ceramic scaffolds characterized by foam-like architecture closely mimicking that of natural cancellous bone. After giving an overview of the features and limitations of the biomedical glass foams investigated in the literature, future directions of research will be described, emphasizing the challenge to develop multifunctional foams able to combine bone regeneration with special therapeutic functionalities.

F. Baino; C. Vitale-Brovarone

2014-01-01T23:59:59.000Z

275

Nano-Continuum Modeling of a Nuclear Glass Specimen Altered for 25 Years  

E-Print Network [OSTI]

Insight into silicate-glass corrosion mechanisms. NatureSantarini (2008). SON68 nuclear glass dissolution kinetics:B. (2006). Nuclear waste glasses – How durable? Elements, 2,

Steefel, Carl

2014-01-01T23:59:59.000Z

276

Tapping on the glass : the intersection of leadership and gender in independent school administration  

E-Print Network [OSTI]

Psychology, 82(6), 920-934. Glass, T. & Franceschini, L. (Schumacher, L. (2005). Has the ‘glass ceiling’ cracked? Anadministrators: A crack in the glass ceiling. Journal of

Ostos, Barbara Escobio

2012-01-01T23:59:59.000Z

277

Effective Action of Domain Wall Networks  

E-Print Network [OSTI]

U(Nc) gauge theory with Nf fundamental scalars admits BPS junctions of domain walls. When the networks/webs of these walls contain loops, their size moduli give localized massless modes. We construct Kahler potential of their effective action. In the large size limit Kahler metric is well approximated by kinetic energy of walls and junctions, which is understood in terms of tropical geometry. Kahler potential can be expressed in terms of hypergeometric functions which are useful to understand small size behavior. Even when the loop shrinks, the metric is regular with positive curvature. Moduli space of a single triangle loop has a geometry between a cone and a cigar.

Minoru Eto; Toshiaki Fujimori; Takayuki Nagashima; Muneto Nitta; Keisuke Ohashi; Norisuke Sakai

2006-12-01T23:59:59.000Z

278

Hydrogenation of single-walled carbon nanotubes  

E-Print Network [OSTI]

Towards the development of a useful mechanism for hydrogen storage, we have studied the hydrogenation of single-walled carbon nanotubes with atomic hydrogen using core-level photoelectron spectroscopy and x-ray absorption spectroscopy. We find that atomic hydrogen creates C-H bonds with the carbon atoms in the nanotube walls and such C-H bonds can be com-pletely broken by heating to 600 oC. We demonstrate approximately 65+/-15 at % hydrogenation of carbon atoms in the single-walled carbon nanotubes which is equivalent to 5.1+/-1.2 weight % hydrogen capacity. We also show that the hydrogenation is a reversible process.

Anton Nikitin; Hirohito Ogasawara; David Mann; Reinhard Denecke; Zhiyong Zhang; Hongjie Dai; KJ Cho; Anders Nilsson

2005-10-14T23:59:59.000Z

279

INTRINSIC DOSIMETRY: PROPERTIES AND MECHANISMS OF THERMOLUMINESCENCE IN COMMERCIAL BOROSILICATE GLASS  

SciTech Connect (OSTI)

Intrinsic dosimetry is the method of measuring total absorbed dose received by the walls of a container holding radioactive material. By considering the total absorbed dose received by a container in tandem with the physical characteristics of the radioactive material housed within that container, this method has the potential to provide enhanced pathway information regarding the history of the container and its radioactive contents. The latest in a series of experiments designed to validate and demonstrate this newly developed tool are reported. Thermoluminescence (TL) dosimetry was used to measure dose effects on raw stock borosilicate container glass up to 70 days after gamma ray, x-ray, beta particle or ultraviolet irradiations at doses from 0.15 to 20 Gy. The TL glow curve when irradiated with 60Co was separated into five peaks: two relatively unstable peaks centered near 120 and 165°C, and three relatively stable peaks centered near 225, 285, and 360°C. Depending on the borosilicate glass source, the minimum measurable dose using this technique is 0.15-0.5 Gy, which is roughly equivalent to a 24 hr irradiation at 1 cm from a 50-165 ng source of 60Co. Differences in TL glow curve shape and intensity were observed for the glasses from different geographical origins. These differences can be explained by changes in the intensities of the five peaks. Electron paramagnetic resonance (EPR) and multivariate statistical methods were used to relate the TL intensity and peaks to electron/hole traps and compositional variations.

Clark, Richard A.

2012-10-24T23:59:59.000Z

280

Improving angular acceptance of stationary low-concentration photovoltaic compound parabolic concentrators using acrylic lens-walled structure  

Science Journals Connector (OSTI)

Low-concentration photovoltaic compound parabolic concentrators (PV-CPC) are a significant addition of solar cell application especially in Building Integrated Photovoltaics because it does not need a tracking system and can be installed in a stationary condition. However higher concentrations correspond with the smaller half acceptance angle which is a limitation but can be improved by a lens-walled structure. In this paper to validate the rationale of this structure a low-concentration PV-CPC using an acrylic lens-walled structure module was designed and fabricated with low-cost materials. The corresponding simulation was also performed with different materials to determine whether the factor that the truncation had a significant effect. The observed outcome implied that the low-concentration PV-CPC using an acrylic lens-walled structure has a larger half acceptance angle than the mirror CPC and that a maximum optical efficiency of more than 80% can be achieved using Schott BK glass as the lens wall material. The lens-walled structure improved the angular acceptance of stationary low-concentration PV-CPC providing a basis for further research.

2014-01-01T23:59:59.000Z

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281

Dynamics of window glass fracture in explosions  

SciTech Connect (OSTI)

An exploratory study was conducted under the Architectural Surety Program to examine the possibility of modifying fracture of glass in the shock-wave environment associated with terrorist bombings. The intent was to explore strategies to reduce the number and severity of injuries resulting from those attacks. The study consisted of a series of three experiments at the Energetic Materials Research and Testing Center (EMRTC) of the New Mexico Institute of Mining and Technology at Socorro, NM, in which annealed and tempered glass sheets were exposed to blast waves at several different levels of overpressure and specific impulse. A preliminary assessment of the response of tempered glass to the blast environment suggested that inducing early failure would result in lowering fragment velocity as well as reducing the loading from the window to the structure. To test that possibility, two different and novel procedures (indentation flaws and spot annealing) were used to reduce the failure strength of the tempered glass while maintaining its ability to fracture into small cube-shaped fragments. Each experiment involved a comparison of the performance of four sheets of glass with different treatments.

Beauchamp, E.K.; Matalucci, R.V.

1998-05-01T23:59:59.000Z

282

Vacuum fusion bonding of glass plates  

DOE Patents [OSTI]

An improved apparatus and method for vacuum fusion bonding of large, patterned glass plates. One or both glass plates are patterned with etched features such as microstructure capillaries and a vacuum pumpout moat, with one plate having at least one hole therethrough for communication with a vacuum pumpout fixture. High accuracy alignment of the plates is accomplished by a temporary clamping fixture until the start of the fusion bonding heat cycle. A complete, void-free fusion bond of seamless, full-strength quality is obtained through the plates; because the glass is heated well into its softening point and because of a large, distributed force that is developed that presses the two plates together from the difference in pressure between the furnace ambient (high pressure) and the channeling and microstructures in the plates (low pressure) due to the vacuum drawn. The apparatus and method may be used to fabricate microcapillary arrays for chemical electrophoresis; for example, any apparatus using a network of microfluidic channels embedded between plates of glass or similar moderate melting point substrates with a gradual softening point curve, or for assembly of glass-based substrates onto larger substrates, such as in flat panel display systems.

Swierkowski, Steve P. (Livermore, CA); Davidson, James C. (Livermore, CA); Balch, Joseph W. (Livermore, CA)

2001-01-01T23:59:59.000Z

283

Vacuum fusion bonding of glass plates  

DOE Patents [OSTI]

An improved apparatus and method for vacuum fusion bonding of large, patterned glass plates. One or both glass plates are patterned with etched features such as microstructure capillaries and a vacuum pumpout moat, with one plate having at least one hole therethrough for communication with a vacuum pumpout fixture. High accuracy alignment of the plates is accomplished by a temporary clamping fixture until the start of the fusion bonding heat cycle. A complete, void-free fusion bond of seamless, full-strength quality is obtained through the plates; because the glass is heated well into its softening point and because of a large, distributed force that is developed that presses the two plates together from the difference in pressure between the furnace ambient (high pressure) and the channeling and microstructures in the plates (low pressure) due to the vacuum drawn. The apparatus and method may be used to fabricate microcapillary arrays for chemical electrophoresis; for example, any apparatus using a network of microfluidic channels embedded between plates of glass or similar moderate melting point substrates with a gradual softening point curve, or for assembly of glass-based substrates onto larger substrates, such as in flat panel display systems.

Swierkowski, Steve P. (Livermore, CA); Davidson, James C. (Livermore, CA); Balch, Joseph W. (Livermore, CA)

2000-01-01T23:59:59.000Z

284

Sealing glasses for titanium and titanium alloys  

DOE Patents [OSTI]

Barium lanthanoborate sealing-glass compositions are provided comprising various combinations (in terms of mole-%) of boron oxide (B.sub.2 O.sub.3), barium oxide (BaO), lanthanum oxide (La.sub.2 O.sub.3), and at least one other oxide selected from the group consisting of aluminum oxide (Al.sub.2 O.sub.3), calcium oxide (CaO), lithium oxide (Li.sub.2 O), sodium oxide (Na.sub.2 O), silicon dioxide (SiO.sub.2), or titanium dioxide (TiO.sub.2). These sealing-glass compositions are useful for forming hermetic glass-to-metal seals with titanium and titanium alloys having an improved aqueous durability and favorable sealing characteristics. Examples of the sealing-glass compositions are provided having coefficients of thermal expansion about that of titanium or titanium alloys, and with sealing temperatures less than about 900.degree. C., and generally about 700.degree.-800.degree. C. The barium lanthanoborate sealing-glass compositions are useful for components and devices requiring prolonged exposure to moisture or water, and for implanted biomedical devices (e.g. batteries, pacemakers, defibrillators, pumps).

Brow, Richard K. (Albuquerque, NM); McCollister, Howard L. (Albuquerque, NM); Phifer, Carol C. (Albuquerque, NM); Day, Delbert E. (Rolla, MO)

1997-01-01T23:59:59.000Z

285

Sealing glasses for titanium and titanium alloys  

DOE Patents [OSTI]

Barium lanthanoborate sealing-glass compositions are provided comprising various combinations (in terms of mole-%) of boron oxide (B{sub 2}O{sub 3}), barium oxide (BaO), lanthanum oxide (La{sub 2}O{sub 3}), and at least one other oxide selected from the group consisting of aluminum oxide (Al{sub 2}O{sub 3}), calcium oxide (CaO), lithium oxide (Li{sub 2}O), sodium oxide (Na{sub 2}O), silicon dioxide (SiO{sub 2}), or titanium dioxide (TiO{sub 2}). These sealing-glass compositions are useful for forming hermetic glass-to-metal seals with titanium and titanium alloys having an improved aqueous durability and favorable sealing characteristics. Examples of the sealing-glass compositions are provided having coefficients of thermal expansion about that of titanium or titanium alloys, and with sealing temperatures less than about 900 C, and generally about 700--800 C. The barium lanthanoborate sealing-glass compositions are useful for components and devices requiring prolonged exposure to moisture or water, and for implanted biomedical devices (e.g. batteries, pacemakers, defibrillators, pumps). 1 fig.

Brow, R.K.; McCollister, H.L.; Phifer, C.C.; Day, D.E.

1997-07-15T23:59:59.000Z

286

Research and development of new ultraphosphate laser glasses  

SciTech Connect (OSTI)

Requirements for Zeus laser glass and HAP laser glass were small {sigma}, low water, low concentration quenching and high mechanical and thermal strength in the former and high {sigma}, low water, low concentration quenching and high mechanical, thermal shock resistance in the later. In order to get a high mechanical and thermal shock resistance, we introduced SiO{sub 2} into phosphate glass, because SiO{sub 2} gives a low expansion coefficient. In this report, we discuss the research and development of the laser glass. Chemical durability, water content, lasing properties, mechanical and thermo-mechanical properties, glass composition and glass structures are discussed.

Izumitani, T.; Toratani, H.; Matsukawa, T.; Kanamori, C.; Miyade, H.

1985-01-30T23:59:59.000Z

287

Symmetry of single-wall nanotubes  

Science Journals Connector (OSTI)

A review of the symmetry groups of the various single-wall nano- and microtubes considered in the literature (BN, GaN, MS2, C, BC3, BC2N) is presented.

Damnjanovic, M.

2001-04-27T23:59:59.000Z

288

Nonextensive statistical dynamics applied to wall turbulence  

E-Print Network [OSTI]

We apply a formalism of nonextensive statistical mechanics to experimental wall turbulence data, for the first time to our knowledge. Wind tunnel data for velocity differences a streamwise distance $r$ apart are compared to the prediction from theory as developed by Beck. The simplest theory, in which all free parameters are removed, is found to reproduce statistics for the wall-normal velocity component remarkably well, even for $r$ well beyond the corresponding integral scale, while the corresponding description of the streamwise velocity fluctuations is reasonable at separations below the integral scale. A least-squares 2-parameter fit is performed, and the dependence of the optimum parameter values on wall separation and $r$ is analysed. Both parameters are found to be approximately independent of wall-separation in the logarithmic sub-layer.

Simen Å Ellingsen; Per-Åge Krogstad

2014-02-10T23:59:59.000Z

289

In situ Groundwater Remediation Using Treatment Walls  

Science Journals Connector (OSTI)

Development of treatment wall technology for the clean up of contaminated ground-water resources has expanded in the past few...ex situ and other in situ ground-water remediation approaches is reduced operation a...

Radisav D. Vidic; Frederick G. Pohland

2002-01-01T23:59:59.000Z

290

CLIMBING WALL POLICIES Open Bouldering Policies  

E-Print Network [OSTI]

. Climb at your own risk. Supervised Climbing Rules: 1. All climbers must check in at the climbing wall a munter knot and/or a figure eight belay device are not acceptable ways to belay. 11. Shirts and close

291

Axions from cosmic string and wall decay  

SciTech Connect (OSTI)

If inflation occurred with a reheat temperature > T{sub PQ}, axions from the decay of global axion strings and domain walls would make an important contribution to the cosmological energy density, comparable to that from vacuum misalignment. Several groups have numerically studied the evolution of axion strings and walls in the past, however substantial uncertainties remain in their contribution to the present density {Omega}{sub a,string+wall} {approx} 1-100 (f{sub a}/10{sup 12} GeV){sup 7/6}, where f{sub a} is the axion decay constant. I will describe the numerical methods used in our simulations and show results for several string and wall configurations.

Hagmann, C A

2010-03-10T23:59:59.000Z

292

Domain walls with non-Abelian clouds  

SciTech Connect (OSTI)

Domain walls in U(N) gauge theories, coupled to Higgs scalar fields with degenerate masses, are shown to possess normalizable non-Abelian Nambu-Goldstone (NG) modes, which we call non-Abelian clouds. We construct the moduli space metric and its Kaehler potential of the effective field theory on the domain walls by focusing on two models: a U(1) gauge theory with several charged Higgs fields, and a U(N) gauge theory with 2N Higgs fields in the fundamental representation. We find that non-Abelian clouds spread between two domain walls and that their rotation induces a long-range repulsive force, in contrast to a U(1) mode in models with fully nondegenerate masses which gives a short-range force. We also construct a bound state of dyonic domain walls by introducing the imaginary part of the Higgs masses. In the latter model we find that when all walls coincide, SU(N){sub L}xSU(N){sub R}xU(1) symmetry is broken down to SU(N){sub V}, and U(N){sub A} NG modes and the same number of quasi-NG modes are localized on the wall. When n walls separate, off-diagonal elements of U(n) NG modes have wave functions spreading between two separated walls (non-Abelian clouds), whereas some quasi-NG modes turn to NG bosons as a result of further symmetry breaking U(n){sub V}{yields}U(1){sub V}{sup n}. In the case of 4+1-dimensional bulk, we can dualize the effective theory to the supersymmetric Freedman-Townsend model of non-Abelian 2-form fields.

Eto, Minoru [INFN, Sezione di Pisa, Largo Pontecorvo, 3, Ed. C, 56127 Pisa (Italy); Department of Physics, University of Pisa Largo Pontecorvo, 3, Ed. C, 56127 Pisa (Italy); Fujimori, Toshiaki; Sakai, Norisuke [Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551 (Japan); Nitta, Muneto [Department of Physics, Keio University, Hiyoshi, Yokohama, Kanagawa 223-8521 (Japan); Ohashi, Keisuke [Department of Applied Mathematics and Theoretical Physics, University of Cambridge, CB3 0WA (United Kingdom)

2008-06-15T23:59:59.000Z

293

Electric and Magnetic Walls on Dielectric Interfaces  

E-Print Network [OSTI]

Sufficient conditions of the existence of electric or magnetic walls on dielectric interfaces are given for a multizone uniform dielectric waveguiding system. If one of two adjacent dielectric zones supports a TEM field distribution while the other supports a TM (TE) field distribution, then the common dielectric interface behaves as an electric (magnetic) wall, that is, the electric (magnetic) field line is perpendicular to the interface while the magnetic (electric) field line is parallel to the interface.

Changbiao Wang

2010-07-20T23:59:59.000Z

294

INTOR impurity control and first wall system  

SciTech Connect (OSTI)

The highlights of the recent INTOR effort on examining the key issues of the impurity control/first wall system are summarized. The emphasis of the work was an integrated study of the edge-region physics, plasma-wall interaction, materials, engineering and magnetic considerations associated with the poloidal divertor and pump limiter. The development of limiter and divertor collector plate designs with an acceptable lifetime was a major part of the work.

Abdou, M.A.

1983-04-01T23:59:59.000Z

295

Glass Buttes Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Glass Buttes Geothermal Area Glass Buttes Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Glass Buttes Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (1) 9 Exploration Activities (14) 10 References Area Overview Geothermal Area Profile Location: Oregon Exploration Region: Cascades GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant Developing Power Projects: 0

296

Pu Glass Fabrication and Product Consistency Testing  

SciTech Connect (OSTI)

The DOE/EM plans to conduct the Plutonium Vitrification Project at the Savannah River Site (SRS). An important part of this project is to reduce the attractiveness of the plutonium by fabricating a plutonium glass form and immobilizing the Pu form within the high level waste (HLW) glass prepared in the Defense Waste Processing Facility (DWPF). This requires that a project schedule that is consistent with EM plans for DWPF and cleanup of the SRS be developed. Critical inputs to key decisions in the vitrification project schedule are near-term data that will increase confidence that lanthanide borosilicate (LaBS) glass product is suitable for disposal in the Yucca Mountain Repository. A workshop was held on April 28, 2005 at Bechtel SAIC Company facility in Las Vegas, NV to define the near term data needs. Dissolution rate data and the fate of plutonium oxide and the neutron absorbers during the dissolution process were defined as key data needs. A suite of short-term tests were defined at the workshop to obtain the needed data. The objectives of these short-term tests are to obtain data that can be used to show that the dissolution rate of a LaBS glass is acceptable and to show that the extent of Pu separation from neutron absorbers, as the glass degrades and dissolves, is not likely to lead to criticality concerns. An additional data need was identified regarding the degree of macroscopic cracking that occurs during processing of the Pu glass waste form and subsequent pouring of HLW glass in the DWPF. A final need to evaluate new frit formulations that may increase the durability of the plutonium glass and/or decrease the degree to which neutron absorbers separate from the plutonium during dissolution was identified. This task plan covers testing to support a near term data need regarding glass dissolution performance. Separate task plans will be developed for testing to address the degree of macroscopic cracking and the development of alternative frit formulations. The Product Consistency Test (PCT) was identified as a means to provide some of the near term performance data. The PCT is a static test method in which known masses of crushed glass and demineralized water are reacted for a desired duration [1]. There are two reasons to perform the PCT. The first is that the results are used as a measure of acceptance in the Waste Acceptance Product Specifications Document (WAPS) [2]. The second is the need for long-term static test results that can be used to verify the applicability of the degradation model. Thus, the primary focus will be on the use of the PCT Method B (PCT-B) to study the formation and stability of colloids and to study alteration phases formed on the glass surface. The standard 7-day PCT in demineralized water (PCT-A) will be included to demonstrate compliance with the waste acceptance criterion and determine the value of the k{sub E} rate parameter for comparison with the Defense HLW Glass Degradation Model [3].

Marra, James

2005-06-29T23:59:59.000Z

297

Glass/ceramic coatings for implants  

DOE Patents [OSTI]

Glass coatings on metals including Ti, Ti6A14V and CrCo were prepared for use as implants. The composition of the glasses was tailored to match the thermal expansion of the substrate metal. By controlling the firing atmosphere, time, and temperature, it was possible to control the reactivity between the glass and the alloy and to fabricate coatings (25-150 .mu.m thick) with excellent adhesion to the substrate. The optimum firing temperatures ranged between 800 and 840.degree. C. at times up to 1 min in air or 15 min in N.sub.2. The same basic technique was used to create multilayered coatings with concentration gradients of hydroxyapatite (HA) particles and SiO.sub.2.

Tomsia, Antoni P. (Pinole, CA); Saiz, Eduardo (Berkeley, CA); Gomez-Vega, Jose M. (Nagoya, JP); Marshall, Sally J. (Larkspur, CA); Marshall, Grayson W. (Larkspur, CA)

2011-09-06T23:59:59.000Z

298

Glass Frit Clumping And Dusting  

SciTech Connect (OSTI)

DWPF mixes a slurry of glass frit (Frit 418) and dilute (1.5 wt%) formic acid solution with high level waste in the Slurry Mix Evaporator (SME). There would be advantages to introducing the frit in a non-slurry form to minimize water addition to the SME, however, adding completely dry frit has the potential to generate dust which could clog filters or condensers. Prior testing with another type of frit, Frit 320, and using a minimal amount of water reduced dust generation, however, the formation of hard clumps was observed. To examine options and behavior, a TTQAP [McCabe and Stone, 2013] was written to initiate tests that would address these concerns. Tests were conducted with four types of glass frit; Frit 320, DWPF Frit 418, Bekeson Frit 418 and Multi-Aspirator Frit 418. The last two frits are chemically identical to DWPF Frit 418 but smaller particles were removed by the respective vendors. Test results on Frit Clumping and Dusting are provided in this report. This report addresses the following seven questions. Short answers are provided below with more detailed answers to follow. 1. Will the addition of a small amount of water, 1.5 wt%, to dry DWPF Frit 418 greatly reduce the dust generation during handling at DWPF? a. Yes, a small scale test showed that adding a little water to the frit greatly reduced dust generation during handling. 2. Will the addition of small amounts of water to the frit cause clumping that will impair frit handling at DWPF? a. No, not with Frit 418. Although clumps were observed to form when 1.5 wt% water was mixed with DWPF Frit 418, then compressed and air-dried overnight, the clumps were easily crushed and did not form the hardened material noted when Frit 320 was tested. 3. What is the measured size distribution of dust generated when dry frit is handled? (This affects the feasibility and choice of processing equipment for removing the dust generating fraction of the frit before it is added to the SME.) a. The size distribution for the dust removed from fresh DWPF Frit 418 while it was being shaken in a small scale LabRAM test was measured. The median size on a volume basis was 7.6 ?m and 90% of the frit particles were between 1.6 and 28 ?m. The mass of dust collected using this test protocol was much less than 1% of the original frit. 4. Can the dust be removed in a small number of processing steps and without the larger frit particles continuing to spall additional dust sized particles? a. Test results using a LabRAM were inconclusive. The LaRAM performs less efficient particle size separation than the equipment used by Bekeson and Multi-Aspirator. 5. What particle size of frit is expected to create a dust problem? a. The original criterion for creating a dusting problem was those particle sizes that were readily suspended when being shaken. For that criterion calculations and Microtrac size analyses indicated that particles smaller than 37 ?m are likely dust generators. Subsequently a more sophisticated criterion for dust problem was considered, particle sizes that would become suspended in the air flow patterns inside the SME and possibly plug the condenser. That size may be larger than 37 ?m but has not yet been determined. 6. If particles smaller than 37 ?m are removed will bulk dust generation be eliminated? a. Video-taped tests were performed using three gallons each of three types of frit 418, DWPF frit, Bekeson frit and Multi-Aspirator frit. Frit was poured through air from a height of approximately eight feet into a container half filled with water. Pouring Bekeson frit or Multi-Aspirator frit generated markedly less visible dust, but there was still a significant amount, which still has the potential of causing a dust problem. 7. Can completely dry frit be poured into the SME without having dust plug the condenser at the top of the vessel? a. Because of the complexity of air currents inside the SME and the difficulty of defensible size scaling a more prototypical test will be required to answer this question. We recommend construction of a full scale

Steimke, J. L.

2013-09-26T23:59:59.000Z

299

Direction of CRT waste glass processing: Electronics recycling industry communication  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer Given a large flow rate of CRT glass {approx}10% of the panel glass stream will be leaded. Black-Right-Pointing-Pointer The supply of CRT waste glass exceeded demand in 2009. Black-Right-Pointing-Pointer Recyclers should use UV-light to detect lead oxide during the separation process. Black-Right-Pointing-Pointer Recycling market analysis techniques and results are given for CRT glass. Black-Right-Pointing-Pointer Academic initiatives and the necessary expansion of novel product markets are discussed. - Abstract: Cathode Ray Tube, CRT, waste glass recycling has plagued glass manufacturers, electronics recyclers and electronics waste policy makers for decades because the total supply of waste glass exceeds demand, and the formulations of CRT glass are ill suited for most reuse options. The solutions are to separate the undesirable components (e.g. lead oxide) in the waste and create demand for new products. Achieving this is no simple feat, however, as there are many obstacles: limited knowledge of waste glass composition; limited automation in the recycling process; transportation of recycled material; and a weak and underdeveloped market. Thus one of the main goals of this paper is to advise electronic glass recyclers on how to best manage a diverse supply of glass waste and successfully market to end users. Further, this paper offers future directions for academic and industry research. To develop the recommendations offered here, a combination of approaches were used: (1) a thorough study of historic trends in CRT glass chemistry; (2) bulk glass collection and analysis of cullet from a large-scale glass recycler; (3) conversations with industry members and a review of potential applications; and (4) evaluation of the economic viability of specific uses for recycled CRT glass. If academia and industry can solve these problems (for example by creating a database of composition organized by manufacturer and glass source) then the reuse of CRT glass can be increased.

Mueller, Julia R., E-mail: mueller.143@osu.edu [Ohio State University, William G. Lowrie Department of Chemical and Biomolecular Engineering, OH (United States) and University of Queensland, School of Chemical Engineering (Australia) and Ohio State University, Materials Science and Engineering, OH (United States); Boehm, Michael W. [University of Queensland, School of Chemical Engineering (Australia); Drummond, Charles [Ohio State University, Materials Science and Engineering, OH (United States)

2012-08-15T23:59:59.000Z

300

Modelling of Ion Cyclotron Wall Conditioning plasmas  

SciTech Connect (OSTI)

Ion Cyclotron Wall Conditioning (ICWC) is envisioned in ITER to clean the wall from impurities, to control the wall isotopic ratio and the hydrogen recycling in the presence of the toroidal magnetic field. Various experiments and modelling are advancing to consolidate this technique. In this contribution the modeling of ICWC is presented, which can be divided in two parts: plasma description and plasma wall interaction. Firstly a 0D plasma model, based on a set of energy and particle balance equations for Maxwellian Hydrogen and Helium species, is presented. The model takes into account elementary collision processes, coupled RF power, particle confinement, wall recycling, and active gas injection and pumping. The RF plasma production process is based mainly on electron collisional ionization. The dependency of the plasma parameters, the Hydrogen and Helium partial pressures and neutral or ionic fluxes on pressure and RF power are quantitatively in good agreement with those obtained experimentally on TORE SUPRA. Secondly an extension of the 0D model including the description of the wall interaction is presented and compared to TORE SUPRA multi-pulse ICWC discharges.

Douai, D.; Wauters, T.; Wuenderlich, D.; Bremond, S.; Lombard, G.; Mollard, P.; Pegourie, B. [CEA, IRFM, 13108 St Paul lez Durance (France); Lyssoivan, A. [LPP-ERM/KMS, 1000 Brussels (Belgium); Marchuk, O. [IEK-4, FZ Juelich, 52425 Juelich (Germany); Van Oost, G. [Ghent University, 9000 Ghent (Belgium)

2011-12-23T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

Structure of rhenium-containing sodium borosilicate glass  

SciTech Connect (OSTI)

A series of sodium borosilicate glasses were synthesized with increasing fractions of KReO4 or Re2O7, to 10000 ppm (1 mass%) target Re in glass, to assess the effects of large concentrations of rhenium on glass structure and to estimate the solubility of technetium, a radioactive component in typical low active waste nuclear waste glasses. Magic angle spinning nuclear magnetic resonance (MAS-NMR), Fourier transform infrared (FTIR) spectroscopy, and Raman spectroscopy were performed to characterize the glasses as a function of Re source additions. In general, silicon was found coordinated in a mixture of Q2 and Q3 structural units, while Al was 4-coordinated and B was largely 3-coordinate and partially 4-coordinated. The rhenium source did not appear to have significant effects on the glass structure. Thus, at the up to the concentrations that remain in dissolved in glass, ~3000 ppm Re by mass maximum. , the Re appeared to be neither a glass-former nor a strong glass modifier., Rhenium likely exists in isolated ReO4- anions in the interstices of the glass network, as evidenced by the polarized Raman spectrum of the Re glass in the absence of sulfate. Analogous to SO42-¬ in similar glasses, ReO4- is likely a network modifier and forms alkali salt phases on the surface and in the bulk glass above solubility.

Goel, Ashutosh; McCloy, John S.; Windisch, Charles F.; Riley, Brian J.; Schweiger, Michael J.; Rodriguez, Carmen P.; Ferreira, Jose M.

2013-03-01T23:59:59.000Z

302

GLASS FABRICATION AND PRODUCT CONSISTENCY TESTING OF LANTHANIDE BOROSILICATE GLASS FOR PLUTONIUM DISPOSITION  

SciTech Connect (OSTI)

The Department of Energy Office of Environmental Management (DOE/EM) plans to conduct the Plutonium Disposition Project at the Savannah River Site (SRS) in Aiken, SC, to disposition excess weapons-usable plutonium. A plutonium glass waste form is a leading candidate for immobilization of the plutonium for subsequent disposition in a geologic repository. The objectives of this present task were to fabricate plutonium-loaded lanthanide borosilicate (LaBS) Frit B glass and perform testing to provide near-term data that will increase confidence that LaBS glass product is suitable for disposal in the proposed Federal Repository. Specifically, testing was conducted in an effort to provide data to Yucca Mountain Project (YMP) personnel for use in performance assessment calculations. Plutonium containing LaBS glass with the Frit B composition with a 9.5 wt% PuO{sub 2} loading was prepared for testing. Glass was prepared to support glass durability testing via the ASTM Product Consistency Testing (PCT) at Savannah River National Laboratory (SRNL). The glass was characterized with X-ray diffraction (XRD) and scanning electron microscopy coupled with energy dispersive spectroscopy (SEM/EDS) prior to performance testing. This characterization revealed some crystalline PuO{sub 2} inclusions with disk-like morphology present in the as fabricated, quench-cooled glass. A series of PCTs was conducted at SRNL with varying exposed surface area and test durations. Filtered leachates from these tests were analyzed to determine the dissolved concentrations of key elements. The leachate solutions were also ultrafiltered to quantify colloid formation. Leached solids from select PCTs were examined in an attempt to evaluate the Pu and neutron absorber release behavior from the glass and to investigate formation of alteration phases on the glass surface. A series of PCTs was conducted at 90 C in ASTM Type 1 water to compare the Pu LaBS Frit B glass durability to current requirements for High Level Waste (HLW) glass in a geologic repository. The PCT (7-day static test with powdered glass) results on the Pu-containing LaBS Frit B glass at SA/V of {approx} 2000 m{sup -1} showed that the glass was very durable with an average normalized elemental release value for boron of 0.013 g/m{sup 2}. This boron release value is {approx} 640X lower than normalized boron release from current Environmental Assessment (EA) glass used for repository acceptance. The PCT-B (7, 14, 28 and 56-day, static test with powdered glass) normalized elemental releases were similar to the normalized elemental release values from PCT-A testing, indicating that the LaBS Frit B glass is very durable as measured by the PCT. Normalized plutonium releases were essentially the same within the analytical uncertainty of the ICP-MS methods used to quantify plutonium in the 0.45 {micro}m-filtered leachates and ultra-filtered leachates, indicating that colloidal plutonium species do not form under the PCT conditions used in this study.

Crawford, C; James Marra, J; Ned Bibler, N

2007-02-12T23:59:59.000Z

303

PLUTONIUM SOLUBILITY IN HIGH-LEVEL WASTE ALKALI BOROSILICATE GLASS  

SciTech Connect (OSTI)

The solubility of plutonium in a Sludge Batch 6 (SB6) reference glass and the effect of incorporation of Pu in the glass on specific glass properties were evaluated. A Pu loading of 1 wt % in glass was studied. Prior to actual plutonium glass testing, surrogate testing (using Hf as a surrogate for Pu) was conducted to evaluate the homogeneity of significant quantities of Hf (Pu) in the glass, determine the most appropriate methods to evaluate homogeneity for Pu glass testing, and to evaluate the impact of Hf loading in the glass on select glass properties. Surrogate testing was conducted using Hf to represent between 0 and 1 wt % Pu in glass on an equivalent molar basis. A Pu loading of 1 wt % in glass translated to {approx}18 kg Pu per Defense Waste Processing Facility (DWPF) canister, or about 10X the current allowed limit per the Waste Acceptance Product Specifications (2500 g/m{sup 3} of glass or about 1700 g/canister) and about 30X the current allowable concentration based on the fissile material concentration limit referenced in the Yucca Mountain Project License Application (897 g/m{sup 3}3 of glass or about 600 g Pu/canister). Based on historical process throughput data, this level was considered to represent a reasonable upper bound for Pu loading based on the ability to provide Pu containing feed to the DWPF. The task elements included evaluating the distribution of Pu in the glass (e.g. homogeneity), evaluating crystallization within the glass, evaluating select glass properties (with surrogates), and evaluating durability using the Product Consistency Test -- Method A (PCT-A). The behavior of Pu in the melter was evaluated using paper studies and corresponding analyses of DWPF melter pour samples.The results of the testing indicated that at 1 wt % Pu in the glass, the Pu was homogeneously distributed and did not result in any formation of plutonium-containing crystalline phases as long as the glass was prepared under 'well-mixed' conditions. The incorporation of 1 wt % Pu in the glass did not adversely impact glass viscosity (as assessed using Hf surrogate) or glass durability. Finally, evaluation of DWPF glass pour samples that had Pu concentrations below the 897 g/m{sup 3} limit showed that Pu concentrations in the glass pour stream were close to targeted compositions in the melter feed indicating that Pu neither volatilized from the melt nor stratified in the melter when processed in the DWPF melter.

Marra, J.; Crawford, C.; Fox, K.; Bibler, N.

2011-01-04T23:59:59.000Z

304

Scaling of fluctuations in a colloidal glass  

E-Print Network [OSTI]

We report experimental measurements of particle dynamics in a colloidal glass in order to understand the dynamical heterogeneities associated with the cooperative motion of the particles in the glassy regime. We study the local and global fluctuation of correlation and response functions in an aging colloidal glass. The observables display universal scaling behavior following a modified power-law, with a plateau dominating the less heterogeneous short-time regime and a power-law tail dominating the highly heterogeneous long-time regime.

P. Wang; C. Song; H. A. Makse

2006-11-01T23:59:59.000Z

305

Cooperative heterogeneous facilitation: Multiple glassy states and glass-glass transition  

Science Journals Connector (OSTI)

The formal structure of glass singularities in the mode-coupling theory (MCT) of supercooled liquids dynamics is closely related to that appearing in the analysis of heterogeneous bootstrap percolation on Bethe lattices, random graphs, and complex networks. Starting from this observation one can build up microscopic on-lattice realizations of schematic MCT based on cooperative facilitated spin mixtures. I discuss a microscopic implementation of the F13 schematic model including multiple glassy states and the glass-glass transition. Results suggest that our approach is flexible enough to bridge alternative theoretical descriptions of glassy matter based on the notions of quenched disorder and dynamic facilitation.

Mauro Sellitto

2012-09-14T23:59:59.000Z

306

Development of a Procedure to Evaluate the Shear Modulus of Laminated Glass Interlayers  

E-Print Network [OSTI]

Laminated glass is comprised of multiple glass plates coupled together in a sandwich construction through the use of a polymorphous interlayer that acts as a bonding agent between the glass plates. Laminated glass offers several advantages over...

Brackin, Michael S.

2010-07-14T23:59:59.000Z

307

Direct measurements of growing amorphous order and non-monotonic dynamic correlations in a colloidal glass-former  

E-Print Network [OSTI]

While the transformation of flowing liquids into rigid glasses is omnipresent, a complete understanding of vitrification remains elusive. Of the numerous approaches aimed at solving the glass transition problem, the Random First-Order Theory (RFOT) is the most prominent. However, the existence of the underlying thermodynamic phase transition envisioned by RFOT remains debatable, since its key microscopic predictions concerning the growth of amorphous order and the nature of dynamic correlations lack experimental verification. Here, by using holographic optical tweezers, we freeze a wall of particles in an equilibrium configuration of a 2D colloidal glass-forming liquid and provide direct evidence for growing amorphous order in the form of a static point-to-set length. Most remarkably, we uncover the non-monotonic dependence of dynamic correlations on area fraction and show that this non-monotonicity follows directly from the change in morphology of cooperatively rearranging regions, as predicted by RFOT. Our findings suggest that the glass transition has a thermodynamic origin.

K. Hima Nagamanasa; Shreyas Gokhale; A. K. Sood; Rajesh Ganapathy

2014-08-23T23:59:59.000Z

308

BUILD YOUR OWN 3D GLASSES! Oaktag (sturdy poster board)  

E-Print Network [OSTI]

BUILD YOUR OWN 3D GLASSES! Materials · Oaktag (sturdy poster board) · Scissors · Clear tape · Basic or sturdy poster board. Cut the glasses out making sure to also cut out the eyeholes. Step 3 Tape the red

Christian, Eric

309

Structural models of bioactive glasses from molecular dynamics simulations  

Science Journals Connector (OSTI)

...to adsorb and dissociate a water molecule (Tilocca Cormack 2008...the available computational power steadily grows, it will become...surface of bioactive glasses: water adsorption and reactivity...soda-lime silicate glasses by Car-Parrinello molecular dynamics...

2009-01-01T23:59:59.000Z

310

Heavy Metals in Glass Beads Used in Pavement Markings  

E-Print Network [OSTI]

Pavement markings are vital for safely navigating roadways. The nighttime visibility of pavement markings is enhanced by addition of retroreflective glass beads, most of which are made from recycled glass. Concern has been raised over the presence...

Mangalgiri, Kiranmayi

2012-07-16T23:59:59.000Z

311

Bioresistance of Foam-Glass Crystal Materials to Filamentous Fungi  

Science Journals Connector (OSTI)

Foam-glass crystal (FGC) materials used for heat insulation obtained by the technology described in [7...] were chosen for the present study. It is known that foam glass is environmentally harmless and safe for ....

O. V. Kaz’mina; M. A. Dushkina; M. V. Chubik

2014-01-01T23:59:59.000Z

312

Combustion Technology Development for an Advanced Glass Melting System  

E-Print Network [OSTI]

Concept feasibility of an innovative technology for glass production has recently been demonstrated. It is based on suspension heating of the glass-forming batch minerals while entrained in a combustion flow of preheated air and natural gas...

Stickler, D. B.; Westra, L.; Woodroffe, J.; Jeong, K. M.; Donaldson, L. W.

313

EFFECT OF GLASS COMPOSITION ON ACTIVATION ENERGY OF VISCOSITY...  

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

EFFECT OF GLASS COMPOSITION ON ACTIVATION ENERGY OF VISCOSITY IN GLASS-MELTING-TEMPERATURE RANGE Sang-Soo Han (1) , Pavel Hrma (1,2) (1) Division of Advanced Nuclear Engineering,...

314

Iodine Solubility in Low-Activity Waste Borosilicate Glass at...  

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

Iodine Solubility in Low-Activity Waste Borosilicate Glass at 1000 °C. Iodine Solubility in Low-Activity Waste Borosilicate Glass at 1000 °C. Abstract: The purpose of this...

315

IMPACTS OF SMALL COLUMN ION EXCHANGE STREAMS ON DWPF GLASS FORMULATION KT07-SERIES GLASS COMPOSITIONS  

SciTech Connect (OSTI)

This report is the third in a series of studies of the impacts of the addition of Crystalline Silicotitanate (CST) and Monosodium Titanate (MST) from the Small Column Ion Exchange (SCIX) process on the Defense Waste Processing Facility (DWPF) glass waste form and the applicability of the DWPF process control models. MST from the Salt Waste Processing Facility is also considered in the study. The KT07-series glasses were selected to evaluate any potential impacts of noble metals on their properties and performance. The glasses characterized thus far for the SCIX study have not included noble metals since they are not typically tracked in sludge batch composition projections. However, noble metals can act as nucleation sites in glass melts, leading to enhanced crystallization. This crystallization can potentially influence the properties and performance of the glass, such as chemical durability, viscosity, and liquidus temperature. The noble metals Ag, Pd, Rh, and Ru were added to the KT07-series glasses in concentrations based on recent measurements of Sludge Batch 6, which was considered to contain a high concentration of noble metals. The KT04-series glasses were used as the baseline compositions. After fabrication, the glasses were characterized to determine their homogeneity, chemical composition, durability, and viscosity. Liquidus temperature measurements are also underway but were not complete at the time of this report. The liquidus temperature results for the KT07-series glasses, along with several of the earlier glasses in the SCIX study, will be documented separately. All of the KT07-series glasses, both quenched and slowly cooled, were found to be amorphous by X-ray diffraction. Chemical composition measurements showed that all of the glasses met their targeted compositions. The Product Consistency Test (PCT) results showed that all of the glasses had chemical durabilities that were far better than that of the Environmental Assessment benchmark glass. The measured PCT responses were well predicted by the current DWPF Product Composition Control System (PCCS) durability models. The measured viscosity values for each KT07-series glass were acceptable for DWPF processing and were well predicted by the current PCCS model. Overall, the results show that the inclusion of relatively high concentrations of noble metals (in terms of expected values for a DWPF sludge batch) had no significant impact on the properties and performance of these glass compositions. There were no significant differences in the measured properties when compared to those of the KT04-series glasses, which did not contain noble metals. Liquidus temperature measurements are still underway and there may be an impact of the noble metals on those measurements. However, no adverse effects were noted in terms of crystallization after slow cooling. At the completion of these studies, all of the data generated will be reviewed with regard to the applicability of the DWPF PCCS models and recommendations will be made as to whether the validation ranges of the current models can be extended, or whether some or all of the models need to be refit to allow for the incorporation of the SCIX streams. As changes are made to the projected sludge compositions and the volume of the SCIX material, additional evaluations should be performed.

Fox, K.; Edwards, T.

2011-01-12T23:59:59.000Z

316

Innovative Exploration Technologies Maui Hawaii & Glass Buttes, Oregon  

Broader source: Energy.gov [DOE]

Innovative Exploration Technologies Maui Hawii & Glass Buttes, Oregon presentation at the April 2013 peer review meeting held in Denver, Colorado.

317

Magnetotellurics At Glass Mountain Area (Cumming And Mackie,...  

Open Energy Info (EERE)

Area (Cumming And Mackie, 2007) Exploration Activity Details Location Glass Mountain Geothermal Area Exploration Technique Magnetotellurics Activity Date Usefulness useful...

318

condmat/9801215 Crossovers in the Two Dimensional Ising Spin Glass  

E-Print Network [OSTI]

cond­mat/9801215 v2 26 Jan 1998 Crossovers in the Two Dimensional Ising Spin Glass of extensive computer simulations we analyze in detail the two dimen­ sional \\SigmaJ Ising spin glass Introduction At present it is clear that the lower critical dimension of Edwards­Anderson Ising spin glasses

Roma "La Sapienza", Università di

319

A new method for solving radiative heat problems in glass  

E-Print Network [OSTI]

RANA 99-06 A new method for solving radiative heat problems in glass B.J. van der Linden -- R, The Netherlands e-mail: linden@win.tue.nl 15th May 2000 #12;Abstract In the production of glass, temperature plays Conclusion 25 2 #12;Chapter 1 Introduction The production of glass belongs to the oldest forms of human

Eindhoven, Technische Universiteit

320

The Polishing, Surface Flow and Wear of Diamond and Glass  

Science Journals Connector (OSTI)

...Polishing, Surface Flow and Wear of Diamond and Glass F. P. Bowden H. G. Scott It has been shown that a diamond sliding on glass can under suitable conditions induce surface flow of the glass. The speed (v) and load (W) necessary to cause...

1958-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

The Shock Wave Response of a Filled Glass  

Science Journals Connector (OSTI)

...research-article The Shock Wave Response of a Filled Glass N. K. Bourne J. C. F. Millett Z...relatively open structure, low density glasses such as borosilicate (pyrex) and soda-lime...addressed the response of highly filled lead glasses. This work presents the results of a...

1996-01-01T23:59:59.000Z

322

GLASS TRANSITION SEEN THROUGH ASYMPTOTIC JULIEN OLIVIER AND MICHAEL RENARDY  

E-Print Network [OSTI]

GLASS TRANSITION SEEN THROUGH ASYMPTOTIC EXPANSIONS JULIEN OLIVIER AND MICHAEL RENARDY Abstract of the model at low shear rate changes when a certain parameter (which we call the glass parameter) crosses´ebraud-Lequeux model, a Fokker-Planck-like description of soft glassy material, exhibits such a glass transition

323

A new method for solving radiative heat problems in glass  

E-Print Network [OSTI]

RANA 99­06 A new method for solving radiative heat problems in glass B.J. van der Linden --- R, The Netherlands e­mail: linden@win.tue.nl 15th May 2000 #12; Abstract In the production of glass, temperature Conclusion 25 2 #12; Chapter 1 Introduction The production of glass belongs to the oldest forms of human

Eindhoven, Technische Universiteit

324

Calorimetric glass transition explained by hierarchical dynamic facilitation  

E-Print Network [OSTI]

Calorimetric glass transition explained by hierarchical dynamic facilitation Aaron S. Keysa Contributed by David Chandler, February 11, 2013 (sent for review November 15, 2012) The glass transition different on cooling than on heating, and the response to melting a glass depends markedly on the cooling

Garrahan, Juan P.

325

Rectilinear Glass-Cut Dissections of Rectangles to Squares  

E-Print Network [OSTI]

Rectilinear Glass-Cut Dissections of Rectangles to Squares Jurek Czyzowicz§ czyzowic is made using only rectilinear glass-cuts, i.e., vertical or horizontal straight-line cuts separating pieces into two. 1 Introduction A glass-cut of a rectangle is a cut by a straight-line segment

Urrutia, Jorge

326

Saga of Glass Damage in Urban Environments Continues  

E-Print Network [OSTI]

Saga of Glass Damage in Urban Environments Continues: Consequences of Aerodynamics and Debris Laboratory University of Notre Dame The Saga of Glass Damage in Urban Environments Continues: Consequences east of the city of Houston. Initial reconnaissance suggested that the observed glass/cladding damage

Kareem, Ahsan

327

5D Data Storage by Ultrafast Laser Nanostructuring in Glass  

E-Print Network [OSTI]

5D Data Storage by Ultrafast Laser Nanostructuring in Glass Jingyu Zhang* , Mindaugas Gecevicius-assembled form birefringence and retrieved in glass opening the era of unlimited lifetime data storage. © 2013 laser writing in glass were proposed for the polarization multiplexed optical memory, where

Anderson, Jim

328

Detection of Strength-Impairing Surface Flaws in Glass  

Science Journals Connector (OSTI)

...of Strength-Impairing Surface Flaws in Glass F. M. Ernsberger Experiments have shown...sodium vapour treatment on the surface of glass (Andrade Tsien 1937) are fractures due...can also be developed, in soda-lime glass, by treatment with a molten lithium salt...

1960-01-01T23:59:59.000Z

329

The Adhesion of Evaporated Metal Films on Glass  

Science Journals Connector (OSTI)

...The Adhesion of Evaporated Metal Films on Glass P. Benjamin C. Weaver The adhesion of...deposited by vacuum techniques on to a glass surface have been examined. It has been...intermediate oxide layer at the metal/glass interface is necessary for good adhesion...

1961-01-01T23:59:59.000Z

330

Glass Concrete Thin Sheets Reinforced with Prestressed Aramid Fabrics  

E-Print Network [OSTI]

Glass Concrete Thin Sheets Reinforced with Prestressed Aramid Fabrics Gregor Vilkner Submitted Glass Concrete Thin Sheets Reinforced with Prestressed Aramid Fabrics Gregor Vilkner Thin sheet concrete crushed glass as aggregate, a multitude of different esthetic effects can be produced, which again open up

Meyer, Christian

331

Glass Forming Ability and Relaxation Behavior of Zr Based Metallic Glasses  

E-Print Network [OSTI]

Metallic glasses can be considered for many commercial applications because of the higher mechanical strength, corrosion and wear resistance when compared to crystalline materials. To consider them for novel applications, the challenge of preparing...

Kamath, Aravind Miyar

2012-07-16T23:59:59.000Z

332

Nanodiamond in tellurite glass Part I: origin of loss in nanodiamond-doped glass  

E-Print Network [OSTI]

Tellurite glass fibers with embedded nanodiamond are attractive materials for quantum photonic applications. Reducing the loss of these fibers in the 600-800 nm wavelength range of nanodiamond fluorescence is essential to exploit the unique properties of nanodiamond in the new hybrid material. In the first part of this study, we report the effect of interaction of the tellurite glass melt with the embedded nanodiamond on the loss of the glasses. The glass fabrication conditions such as melting temperature and concentration of NDs added to the melt were found to have critical influence on the interaction. Based on this understanding, we identified promising fabrication conditions for decreasing the loss to levels required for practical applications.

Ebendorff-Heidepriem, Heike; Ji, Hong; Greentree, Andrew D; Gibson, Brant C; Monro, Tanya M

2014-01-01T23:59:59.000Z

333

Optical glass and glass ceramic historical aspects and recent developments: a Schott view  

Science Journals Connector (OSTI)

Since the time of Galilei 400 years ago the progress of optical systems was restricted due to the lack of optical glass types with different dispersion properties and due to poor...

Hartmann, Peter; Jedamzik, Ralf; Reichel, Steffen; Schreder, Bianca

2010-01-01T23:59:59.000Z

334

Heisenberg-Ising crossover in spin glasses  

Science Journals Connector (OSTI)

The small anisotropy always present in real spin glasses induces a finite-temperature phase transition of Ising character. We argue that the width of the Ising-like critical regime should be comparable with teh transition temperature itself. Furthermore, for realistic values of the anisotropy there is no well-defined Heisenberg-like critical regime at all.

A. J. Bray and M. A. Moore

1986-11-01T23:59:59.000Z

335

Equilibrium ultrastable glasses produced by random pinning  

E-Print Network [OSTI]

Ultrastable glasses have risen to prominence due to their potentially useful material properties and the tantalizing possibility of a general method of preparation via vapor deposition. Despite the importance of this novel class of amorphous materials, numerical studies have been scarce because achieving ultrastability in atomistic simulations is an enormous challenge. Here we bypass this difficulty and establish that randomly pinning the position of a small fraction of particles inside an equilibrated supercooled liquid generates ultrastable configurations at essentially no numerical cost, while avoiding undesired structural changes due to the preparation protocol. Building on the analogy with vapor-deposited ultrastable glasses, we study the melting kinetics of these configurations following a sudden temperature jump into the liquid phase. In homogeneous geometries, we find that enhanced kinetic stability is accompanied by large scale dynamic heterogeneity, while a competition between homogeneous and heterogeneous melting is observed when a liquid boundary invades the glass at constant velocity. Our work demonstrates the feasibility of large-scale, atomistically resolved, and experimentally relevant simulations of the kinetics of ultrastable glasses.

Glen M Hocky; Ludovic Berthier; David R. Reichman

2014-09-23T23:59:59.000Z

336

Glass fiber channels laser light to robot  

Science Journals Connector (OSTI)

Glass fiber channels laser light to robot ... In a demonstration of the technique, a fiberoptic cable carried a laser beam of more than 10,000 W of peak power—400 W average—from a neodymiumyttrium- aluminum-garnet laser to an industrial robot more than 25 yards away. ...

1983-11-28T23:59:59.000Z

337

Condensed matter: Through a glass, lightly  

Science Journals Connector (OSTI)

... allow detection of atomic jump rates. The authors use an unusual spin alignment echo (SAE) technique to detect Be hopping in the bulk metallic glass. They consider with care ... of the echo decay from the 9Be atoms; its pure exponential form confirms that the SAE technique detects unconstrained hopping that contributes fully to long-range atomic transport and is not ...

A. Lindsay Greer

1999-11-11T23:59:59.000Z

338

DWPF Glass Melter Technology Manual: Volume 3  

SciTech Connect (OSTI)

This document details information about the design of a glass melter to be used at the Defense Waste Processing Facility located at the Savannah River Site. Topics discussed include: Information collected during testing, equipment, materials, design basis, feed tubes, and an evaluation of the performance of various components. Information is conveyed using many diagrams and photographs.

Iverson, D.C.

1993-12-31T23:59:59.000Z

339

Thermodynamics of the Lévy spin glass  

Science Journals Connector (OSTI)

We investigate the Lévy glass, a mean-field spin-glass model with power-law distributed couplings characterized by a divergent second moment. By combining extensively many small couplings with a spare random backbone of strong bonds the model is intermediate between the Sherrington-Kirkpatrick and the Viana-Bray models. A truncated version where couplings smaller than some threshold ? are neglected can be studied within the cavity method developed for spin glasses on locally treelike random graphs. By performing the limit ??0 in a well-defined way we calculate the thermodynamic functions within replica symmetry and determine the de Almeida-Thouless line in the presence of an external magnetic field. Contrary to previous findings we show that there is no replica-symmetric spin-glass phase. Moreover we determine the leading corrections to the ground-state energy within one-step replica symmetry breaking. The effects due to the breaking of replica symmetry appear to be small in accordance with the intuitive picture that a few strong bonds per spin reduce the degree of frustration in the system.

K. Janzen; A. Engel; M. Mézard

2010-08-30T23:59:59.000Z

340

The Color Glass Condensate and some applications  

E-Print Network [OSTI]

We give an elementary discussion of parton saturation and its description by the effective theory of the Color Glass Condensate. We report on progress in calculating multi-gluon correlators. The latter are necessary for many phenomenological applications, upon some of which we briefly touch.

D. N. Triantafyllopoulos

2012-09-14T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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.


341

Blocking effect of crystal–glass interface in lanthanum doped barium strontium titanate glass–ceramics  

SciTech Connect (OSTI)

Graphical abstract: The blocking effect of the crystal–glass interface on the carrier transport behavior in the lanthanum doped barium strontium titanate glass–ceramics: preparation and characterization. - Highlights: • La{sub 2}O{sub 3} addition promotes the crystallization of the major crystalline phase. • The Z? and M? peaks exist a significant mismatch for 0.5 mol% La{sub 2}O{sub 3} addition. • The Z? and M? peaks separate obviously for 1.0 mol% La{sub 2}O{sub 3} addition. • Crystallite impedance decreases while crystal–glass interface impedance increases. • La{sub 2}O{sub 3} addition increases blocking factor of the crystal–glass interface. - Abstract: The microstructures and dielectric properties in La{sub 2}O{sub 3}-doped barium strontium titanate glass–ceramics have been investigated by scanning electron microscopy (SEM) and impedance spectroscopy. SEM analysis indicated that La{sub 2}O{sub 3} additive decreases the average crystallite size. Impedance spectroscopy revealed that the positions of Z? and M? peaks are close for undoped samples. When La{sub 2}O{sub 3} concentration is 0.5 mol%, the Z? and M? peaks show a significant mismatch. Furthermore, these peaks separate obviously for 1.0 mol% La{sub 2}O{sub 3} addition. With increasing La{sub 2}O{sub 3} concentration, the contribution of the crystallite impedance becomes smaller, while the contribution of the crystal–glass interface impedance becomes larger. More interestingly, it was found that La{sub 2}O{sub 3} additive increases blocking factor of the crystal–glass interface in the temperature range of 250–450 °C. This may be attributed to a decrease of activation energy of the crystallite and an increase of the crystal–glass interface area.

Wang, Xiangrong [Beijing Fine Ceramics Laboratory, State Key Laboratory of New Ceramics and Fine Processing, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084 (China); Zhang, Yong, E-mail: yzhang@tsinghua.edu.cn [Beijing Fine Ceramics Laboratory, State Key Laboratory of New Ceramics and Fine Processing, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084 (China); Baturin, Ivan [Ferroelectric Laboratory, Institute of Natural Science, Ural Federal University, Ekaterinburg 620000 (Russian Federation); Liang, Tongxiang [Beijing Fine Ceramics Laboratory, State Key Laboratory of New Ceramics and Fine Processing, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084 (China)

2013-10-15T23:59:59.000Z

342

"Double swallow-tail" singularity and glass-glass transition in a quasibinary system  

E-Print Network [OSTI]

The system with the square shoulder (SS) potential is considered in the frame of Mode Coupling Theory (MCT) approach. An approximation for the structure factor is used that emphasizes the quasibinary character of the system. The qualitative phase diagram is constructed that includes continuous and discontinuous glass-glass transitions. The phase diagram is governed by two swallow tails connected with two $A_4$ singularities.

V. N. Ryzhov; E. E. Tareyeva

2013-12-05T23:59:59.000Z

343

The development of design factors for heat-strengthened and tempered glass based on the glass failure prediction model  

E-Print Network [OSTI]

THE DEVELOPMENT OF DESIGN FACTORS FOR HEAT-STRENGTHENED AND TEMPERED GLASS BASED ON THE GLASS FAILURE PREDICTION MODEL A Thesis by Timothy Andrew Oakes Submitted to the Office of Graduate Studies of Texas A&M University in partial... fulfillment of the requirements for the degree of MASTER OF SCIENCE Decypber 199$ Major Subject: Civil Engineering THE DEVELOPMENT OF DESIGN FACTORS FOR HEAT-STRENGTHENED AND TEMPERED GLASS BASED ON THE GLASS FAILURE PREDICTION MODEL A Thesis...

Oakes, Timothy Andrew

1991-01-01T23:59:59.000Z

344

Glass and glass-ceramics transparent from the visible range to the mid-infrared for night vision  

Science Journals Connector (OSTI)

Many papers report studies on oxyfluorides glass-ceramics combining the optical advantage of fluoride environment for rare earth with the thermal and chemical advantages of oxide glasses [1â??7], or on oxide-based glass-ceramics exhibiting exceptional thermo-mechanical properties such as zero thermal expansion coefficient. The transparency of these glass-ceramics is limited in the infrared region up to 4 µm [8â??12]. In this paper, we report the last results on totally new infrared transmitting chalcogenide glass-ceramics which are transparent up to 11 µm for sulphur based glass or up to 16 µm for selenium based glass. By selecting appropriate glass composition in several Ge-(Sb/Ga)-(S/Se)-MX (MX: alkali halide) systems, glass-ceramics with different microcrystals volume fraction can be reproducibly obtained by controlling nucleation and crystallisation annealing time and temperatures. It has been demonstrated that crystals smaller than 200 nm induce some additional losses only in the short wavelength region. The glass ceramics keep the same transmission as the original glass from 1 µm up to 11 µm or 16 µm. Sulphur based glass-ceramics are still transparent in the second for glass and selenium based glass-ceramics keep an excellent transmission in the second and third atmospheric window. The obtained glass-ceramics exhibit much better resistance to cracks propagation than the corresponding pure glass matrix. Observations under electronic microscopy as well as X-ray diffraction have been used to determinate crystals size, density and crystalline phase. The possibility of combining the ceramisation process and the shaping by moulding has also been demonstrated.

L. Calvez; H-L. Ma; J. Lucas; X.H. Zhang

2008-01-01T23:59:59.000Z

345

Identification of Novel Cell Wall Components  

SciTech Connect (OSTI)

Our DOE Biosciences-funded work focused on the fungal cell wall and morphogenesis. We are especially interested in how new cell wall material is targeted to appropriate areas for polar (asymmetric) growth. Polar growth is the only way that filamentous fungi explore the environment to find suitable substrates to degrade. Work funded by this grant has resulted in a total of twenty peer-reviewed publications. In work funded by this grant, we identified nine Aspergillus nidulans temperature-sensitive (ts) mutants that fail to send out a germ tube and show a swollen cell phenotype at restrictive temperature, the swo mutants. In other organisms, a swollen cell phenotype is often associated with misdirected growth or weakened cell walls. Our work shows that several of the A. nidulans swo mutants have defects in the establishment and maintenance of polarity. Cloning of several swo genes by complementation also showed that secondary modification of proteins seems is important in polarity. We also investigated cell wall biosynthesis and branching based on leads in literature from other organisms and found that branching and nuclear division are tied and that the cell wall reorganizes during development. In our most recent work we have focused on gene expression during the shift from isotropic to polar growth. Surprisingly we found that genes previously thought to be involved only in spore formation are important in early vegetative growth as well.

Michelle Momany

2009-10-26T23:59:59.000Z

346

WallBots: Interactive Wall-Crawling Robots In the Hands of Public Artists and Political Activists  

E-Print Network [OSTI]

WallBots: Interactive Wall-Crawling Robots In the Hands of Public Artists and Political Activists present WallBots- autonomous, wall-crawling robots as a research probe for public expression across a wide, street art INTRODUCTION "People look at an oil painting and admire the use of brushstrokes to convey

Paulos, Eric

347

Influence of glass polymerisation and oxidation on micro-Raman water analysis in alumino-silicate glasses  

E-Print Network [OSTI]

Influence of glass polymerisation and oxidation on micro-Raman water analysis in alumino-silicate glasses Maxime Merciera, Andrea Di Muroab , Daniele Giordanoc , Nicole Métricha , Priscille Lesned of an accurate analytical procedure for determination of dissolved water in complex alumino-silicate glasses via

Paris-Sud XI, Université de

348

Glasstech. Ber. Glass Sci. Technol. 75 C2 (2002) 298 Photoinduced Chemical Etching of Silicate and Borosilicate Glasses  

E-Print Network [OSTI]

Glasstech. Ber. Glass Sci. Technol. 75 C2 (2002) 298 Photoinduced Chemical Etching of Silicate and Borosilicate Glasses Leonid B. Glebov, Larissa Glebova and Olena Lopatiuk School of Optics/CREOL, University modification of glasses for electronic applications [1]. Main disadvantage of using this method for optical

Glebov, Leon

349

Photograph from Ruth Glass Obituary in The Times 9th March 1990. Ruth Adele Glass [ne Lazarus] (1912 1990), sociologist, was born on 30 June 1912 in Berlin,  

E-Print Network [OSTI]

RUTH GLASS Photograph from Ruth Glass Obituary in The Times 9th March 1990. Ruth Adele Glass [née, published in 1939, established her reputation as a social scientist. From 1940 until 1942 Ruth Glass College London, which remained her academic base for the rest of her life. In 1951 Ruth Glass became

350

living walls | OpenEI Community  

Open Energy Info (EERE)

14 14 Varnish cache server Home Groups Community Central Green Button Applications Developer Utility Rate FRED: FRee Energy Database More Public Groups Private Groups Features Groups Blog posts Content Stream Documents Discussions Polls Q & A Events Notices My stuff Energy blogs 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142229614 Varnish cache server living walls Home Dc's picture Submitted by Dc(15) Member 15 November, 2013 - 13:26 Living Walls ancient building system architect biomimicry building technology cooling cu daylight design problem energy use engineer fred andreas geothermal green building heat transfer heating living walls metabolic adjustment net zero pre-electricity Renewable Energy Solar university of colorado utility grid Wind

351

Effective action of domain wall networks  

SciTech Connect (OSTI)

U(N{sub C}) gauge theory with N{sub F} fundamental scalars admits BPS junctions of domain walls. When the networks/webs of these walls contain loops, their size moduli give localized massless modes. We construct Kaehler potential of their effective action. In the large size limit Kaehler metric is well approximated by kinetic energy of walls and junctions, which is understood in terms of tropical geometry. Kaehler potential can be expressed in terms of hypergeometric functions that are useful to understand small size behavior. Even when the loop shrinks, the metric is regular with positive curvature. Moduli space of a single triangle loop has a geometry between a cone and a cigar.

Eto, Minoru [Institute of Physics, University of Tokyo, Komaba 3-8-1, Tokyo 153-8902 (Japan); Fujimori, Toshiaki; Nagashima, Takayuki; Ohashi, Keisuke; Sakai, Norisuke [Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551 (Japan); Nitta, Muneto [Department of Physics, Keio University, Hiyoshi, Yokohama, Kanagawa 223-8521 (Japan)

2007-02-15T23:59:59.000Z

352

Wall thickness measuring method and apparatus  

DOE Patents [OSTI]

An apparatus for measuring the wall thickness of a nonmagnetic article having a housing supporting a magnet and a contiguous supporting surface. The tubular article and the housing are releasably secured to the supporting surface and a support member of an optical comparator, respectively. To determine the wall thickness of the article at a selected point, a magnetically responsive ball is positioned within the tubular article over said point and retained therein by means of a magnetic field produced by the magnet. Thereafter, an optical comparator is employed to project a magnified image of the ball on a screen and the wall thickness at the selected point is calculated by using a ball surface measurement taken with the comparator in conjunction with a previously determined base line measurement.

Salzer, L.J.; Bergren, D.A.

1987-10-06T23:59:59.000Z

353

Thermodynamics of free Domain Wall fermions  

E-Print Network [OSTI]

Studying various thermodynamic quantities for the free domain wall fermions for both finite and infinite fifth dimensional extent N_5, we find that the lattice corrections are minimum for $N_T\\geq10$ for both energy density and susceptibility, for its irrelevant parameter M in the range 1.45-1.50. The correction terms are, however, quite large for small lattice sizes of $N_T\\leq8$. We propose modifications of the domain wall operator, as well as the overlap operator, to reduce the finite cut-off effects to within 10% of the continuum results of the thermodynamic quantities for the currently used N_T=6-8 lattices. Incorporating chemical potential, we show that \\mu^2 divergences are absent for a large class of such domain wall fermion actions although the chiral symmetry is broken for $\\mu\

R. V. Gavai; Sayantan Sharma

2008-11-19T23:59:59.000Z

354

Living Walls | OpenEI Community  

Open Energy Info (EERE)

Living Walls Living Walls Home > Groups > Buildings Dc's picture Submitted by Dc(15) Member 15 November, 2013 - 13:26 ancient building system architect biomimicry building technology cooling cu daylight design problem energy use engineer fred andreas geothermal green building heat transfer heating living walls metabolic adjustment net zero pre-electricity Renewable Energy Solar university of colorado utility grid Wind Much of the discussion surrounding green buildings centers around reducing energy use. The term net zero is the platinum standard for green buildings, meaning the building in question does not take any more energy from the utility grid than it produces using renewable energy resources, such as solar, wind, or geothermal installations (and sometimes these renewable energy resources actually feed energy back to the utility grid). Architects

355

Rapid process for producing transparent, monolithic porous glass  

DOE Patents [OSTI]

A process for making transparent porous glass monoliths from gels. The glass is produced much faster and in much larger sizes than present technology for making porous glass. The process reduces the cost of making large porous glass monoliths because: 1) the process does not require solvent exchange nor additives to the gel to increase the drying rates, 2) only moderate temperatures and pressures are used so relatively inexpensive equipment is needed, an 3) net-shape glass monoliths are possible using this process. The process depends on the use of temperature to control the partial pressure of the gel solvent in a closed vessel, resulting in controlled shrinking during drying.

Coronado, Paul R. (Livermore, CA)

2006-02-14T23:59:59.000Z

356

Energy Efficient Glass Melting - The Next Generation Melter  

SciTech Connect (OSTI)

The objective of this project is to demonstrate a high intensity glass melter, based on the submerged combustion melting technology. This melter will serve as the melting and homogenization section of a segmented, lower-capital cost, energy-efficient Next Generation Glass Melting System (NGMS). After this project, the melter will be ready to move toward commercial trials for some glasses needing little refining (fiberglass, etc.). For other glasses, a second project Phase or glass industry research is anticipated to develop the fining stage of the NGMS process.

David Rue

2008-03-01T23:59:59.000Z

357

Sealed glass coating of high temperature ceramic superconductors  

DOE Patents [OSTI]

A method and article of manufacture of a lead oxide based glass coating on a high temperature superconductor is disclosed. The method includes preparing a dispersion of glass powders in a solution, applying the dispersion to the superconductor, drying the dispersion before applying another coating and heating the glass powder dispersion at temperatures below oxygen diffusion onset and above the glass melting point to form a continuous glass coating on the superconductor to establish compressive stresses which enhance the fracture strength of the superconductor. 8 figs.

Wu, W.; Chu, C.Y.; Goretta, K.C.; Routbort, J.L.

1995-05-02T23:59:59.000Z

358

Glass transitions in two-dimensional suspensions of colloidal ellipsoids  

E-Print Network [OSTI]

We observed a two-step glass transition in monolayers of colloidal ellipsoids by video microscopy. The glass transition in the rotational degree of freedom was at a lower density than that in the translational degree of freedom. Between the two transitions, ellipsoids formed an orientational glass. Approaching the respective glass transitions, the rotational and translational fastest-moving particles in the supercooled liquid moved cooperatively and formed clusters with power-law size distributions. The mean cluster sizes diverge in power law as approaching the glass transitions. The clusters of translational and rotational fastest-moving ellipsoids formed mainly within pseudo-nematic domains, and around the domain boundaries, respectively.

Zhongyu Zheng; Feng Wang; Yilong Han

2011-05-29T23:59:59.000Z

359

Cell Wall Recipe: A Lesson on Biofuels  

K-12 Energy Lesson Plans and Activities Web site (EERE)

Students will investigate how changes in the DNA sequence that codes for cell wall formation can have a favorable outcome in producing plants that have higher levels of cellulose than the parent plant. The cellulose yield is most important in the production of ethanol: the greater the amount of cellulose within the cell wall, the greater the amount of ethanol that can be produced. To engage students, the first part of this lesson has students participating in a discovery activity where they will extract DNA from wheat germ.

360

DEVELOPMENT OF GLASS MATRICES FOR HLW RADIOACTIVE WASTES  

SciTech Connect (OSTI)

Vitrification is currently the most widely used technology for the treatment of high level radioactive wastes (HLW) throughout the world. Most of the nations that have generated HLW are immobilizing in either borosilicate glass or phosphate glass. One of the primary reasons that glass has become the most widely used immobilization media is the relative simplicity of the vitrification process, e.g. melt waste plus glass forming frit additives and cast. A second reason that glass has become widely used for HLW is that the short range order (SRO) and medium range order (MRO) found in glass atomistically bonds the radionuclides and governs the melt properties such as viscosity, resistivity, sulphate solubility. The molecular structure of glass controls contaminant/radionuclide release by establishing the distribution of ion exchange sites, hydrolysis sites, and the access of water to those sites. The molecular structure is flexible and hence accounts for the flexibility of glass formulations to waste variability. Nuclear waste glasses melt between 1050-1150 C which minimizes the volatility of radioactive components such as Tc{sup 99}, Cs{sup 137}, and I{sup 129}. Nuclear waste glasses have good long term stability including irradiation resistance. Process control models based on the molecular structure of glass have been mechanistically derived and have been demonstrated to be accurate enough to control the world's largest HLW Joule heated ceramic melter in the US since 1996 at 95% confidence.

Jantzen, C.

2010-03-18T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

GlassPoint Solar Inc | Open Energy Information  

Open Energy Info (EERE)

GlassPoint Solar Inc GlassPoint Solar Inc Jump to: navigation, search Name GlassPoint Solar Inc. Place San Francisco, California Zip 94105 Sector Solar Product San Francisco-based developer and marketer of solar industrial process heat generating equipment for a wide range of industries including enhanced oil recovery, municipal waste water treatment and electrical power generation. References GlassPoint Solar Inc.[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. GlassPoint Solar Inc. is a company located in San Francisco, California . References ↑ "GlassPoint Solar Inc." Retrieved from "http://en.openei.org/w/index.php?title=GlassPoint_Solar_Inc&oldid=345889

362

Hot wire production of single-wall and multi-wall carbon nanotubes  

DOE Patents [OSTI]

Apparatus (210) for producing a multi-wall carbon nanotube (213) may comprise a process chamber (216), a furnace (217) operatively associated with the process chamber (216), and at least one filament (218) positioned within the process chamber (216). At least one power supply (220) operatively associated with the at least one filament (218) heats the at least one filament (218) to a process temperature. A gaseous carbon precursor material (214) operatively associated with the process chamber (216) provides carbon for forming the multi-wall carbon nanotube (213). A metal catalyst material (224) operatively associated with the process (216) catalyzes the formation of the multi-wall carbon nanotube (213).

Dillon, Anne C. (Boulder, CO); Mahan, Archie H. (Golden, CO); Alleman, Jeffrey L. (Lakewood, CO)

2010-10-26T23:59:59.000Z

363

THE CHINESE WALL LATTICE Ravi Sandhu  

E-Print Network [OSTI]

security policy for confidentiality · Mixture of free choice (discretionary) and mandatory of interest class #12;4 CHINESE WALL EXAMPLE BANKS OIL COMPANIESBANKS OIL COMPANIES A B X Y #12;5 READ ACCESS BREWER-NASH SIMPLE SECURITY S can read O only if · O is in the same company dataset as· O is in the same

Sandhu, Ravi

364

Symmetry groups of single-wall nanotubes  

Science Journals Connector (OSTI)

An approach to the determination of the symmetry groups of structural analogs of single-wall carbon nanotubes using ideas in color symmetry theory is described. The line group structures of the symmetry groups of BN, BC3, BCN and BC2N nanotubes are identified. An extension of the method to address nanotubes with non-hexagonal symmetry is also presented.

De Las Pe?as, M.L.A.N.

2013-11-26T23:59:59.000Z

365

Annual Report Diana H. Wall, Director  

E-Print Network [OSTI]

Student Sustainability Center more than doubled its student engagement, and our pre-college Summer2013-2014 Annual Report #12;Diana H. Wall, Director CSU is at the forefront of sustainability if such systems are to endure, and developing the expertise that is needed to shape a sustainable future

366

Wall Precursor Effects in Gaseous Detonation  

Science Journals Connector (OSTI)

... and 5 mm long, were used in an investigation of electrical phenomena in stoichiometric oxyhydrogen detonations produced in a 4 m long stainless steel tube of hexagonal cross-section. The ... , which was insulated from the tube wall, recorded the time of arrival of the detonation plasma at the plane of observation. Only when both the probes and insulating surfaces ...

M. C. CAVENOR

1970-02-21T23:59:59.000Z

367

Subcooled Boiling Near a Heated Wall  

SciTech Connect (OSTI)

Experimental measurements of void fraction, bubble frequency, and velocity are obtained in subcooled R-134a flowing over a heated flat plate near an unheated wall and compared to analytical predictions. The measurements were obtained for a fixed system pressure and mass flow rate (P = 2.4 MPa and w = 106 kg/hr) at various inlet liquid temperatures. During the experiments, electrical power was applied at a constant rate to one side of the test section. The local void fraction data, acquired with a hot-film anemometer probe, showed the existence of a significant peak near the heated wall and a smaller secondary peak near the unheated wall for the larger inlet subcoolings. Local vapor velocity data, taken with the hot-film probe and a laser Doppler velocimeter, showed broad maxima near the centerline between the heated and unheated plates. Significant temperature gradients near the heated wall were observed for large inlet subcooling. Bubble size data, inferred from measurements of void fraction, bubble frequency and vapor velocity, when combined with the measured bubble chord length distributions illustrate the transition from pure three dimensional spherical to two-dimensional planar bubble flow, the latter being initiated when the bubbles fill the gap between the plates. These various two-phase flow measurements were used for development of a multidimensional, four-field calculational method; comparisons of the data to the calculations show reasonable agreement.

T.A. Trabold; C.C. Maneri; P.F. Vassallo; D.M. Considine

2000-10-27T23:59:59.000Z

368

Design of wetted wall bioaerosol concentration cyclones  

E-Print Network [OSTI]

...................................................................................... 24 Aerosol-to-aerosol collection efficiency.................................................... 24 Wetting pattern on the impacting wall ? effect of an atomizer.................. 24..................................................................................... 67 Figure 3.4. Cold temperature experiemental setup ........................................................... 68 Figure 3.5. Preliminary heating system for the 1250 L/min cyclone and thermo-couple locations...

Seo, Youngjin

2009-05-15T23:59:59.000Z

369

Correlated excitations and Raman scattering in glasses  

Science Journals Connector (OSTI)

The dominant Raman line in AX2 tetrahedral glasses is demonstrated to be caused by correlated symmetric stretch motions of the bridging X atoms. Using a bond-polarizability model and the central-force model of Sen and Thorpe, we derive simple analytic forms for Raman spectra. We show that correlations may cause qualitative changes in the polarized spectrum leading to a peak at the edge of a band of vibrational states, whereas the depolarized spectrum is less affected and mimics the density of states. Both features are clearly observed in GeO2 and explain features in many other glasses. The same reasoning leads to a prediction of unusual spectral features in electronic spectra of disordered solids which may be observable in angular-dependent photoemission.

Richard M. Martin and Frank L. Galeener

1981-03-15T23:59:59.000Z

370

Kinetic Ising Model of the Glass Transition  

Science Journals Connector (OSTI)

A graph theory of single-spin-flip kinetic Ising models is developed and applied to a class of spin models with strongly cooperative dynamics. Self-consistent approximations for the spin time correlation function are presented. One of the dynamical models exhibits a glass transition with no underlying thermodynamic singularity. The approximation for the time correlation function predicts a critical temperature, below which small fluctuations from equilibrium in the thermodynamic limit cannot relax in a finite amount of time.

Glenn H. Fredrickson and Hans C. Andersen

1984-09-24T23:59:59.000Z

371

Overview of Energy Efficiency for Glass Furnace  

E-Print Network [OSTI]

,Particulates (Environmental norms) Global competitiveness #12;3 April, 2006 4Source: www.oilnergy.com Crude Oil Price #12;3 April, 2006 5 Natural Gas Price Source: www.oilnergy.com #12;3 April, 2006 6 Carbon Dioxide Endothermic heat of reaction Glass enthalpy at outlet of tank 1886 From temperature of 20 oC to 1500 oC Batch

Banerjee, Rangan

372

Free Energy Fluctuations in Ising Spin Glasses  

Science Journals Connector (OSTI)

The sample-to-sample fluctuations of the free energy in finite-dimensional Ising spin glasses are calculated, using the replica method, from higher order terms in the replica number n. It is shown that the Parisi symmetry breaking scheme does not give the correct answers for these higher order terms. A modified symmetry breaking scheme with the same stability is shown to resolve the problem.

T. Aspelmeier and M. A. Moore

2003-04-30T23:59:59.000Z

373

Far-infrared attenuation in glasses  

Science Journals Connector (OSTI)

The influence of quasilocal vibrations on the far-infrared spectra of glasses is investigated under the supposition that the quasilocal vibrations are directly inactive in the attenuation. It is shown that taking into account phonon-quasilocal-vibration coupling and both medium- and short-range structure of the inhomogeneities of a photon-phonon coupling parameter can give rise to an attenuation curve similar to one observed for a-SiO2 and related materials.

Lev I. Deich

1994-01-01T23:59:59.000Z

374

Electrostatic transfer of epitaxial graphene to glass.  

SciTech Connect (OSTI)

We report on a scalable electrostatic process to transfer epitaxial graphene to arbitrary glass substrates, including Pyrex and Zerodur. This transfer process could enable wafer-level integration of graphene with structured and electronically-active substrates such as MEMS and CMOS. We will describe the electrostatic transfer method and will compare the properties of the transferred graphene with nominally-equivalent 'as-grown' epitaxial graphene on SiC. The electronic properties of the graphene will be measured using magnetoresistive, four-probe, and graphene field effect transistor geometries [1]. To begin, high-quality epitaxial graphene (mobility 14,000 cm2/Vs and domains >100 {micro}m2) is grown on SiC in an argon-mediated environment [2,3]. The electrostatic transfer then takes place through the application of a large electric field between the donor graphene sample (anode) and the heated acceptor glass substrate (cathode). Using this electrostatic technique, both patterned few-layer graphene from SiC(000-1) and chip-scale monolayer graphene from SiC(0001) are transferred to Pyrex and Zerodur substrates. Subsequent examination of the transferred graphene by Raman spectroscopy confirms that the graphene can be transferred without inducing defects. Furthermore, the strain inherent in epitaxial graphene on SiC(0001) is found to be partially relaxed after the transfer to the glass substrates.

Ohta, Taisuke; Pan, Wei; Howell, Stephen Wayne; Biedermann, Laura Butler; Beechem Iii, Thomas Edwin; Ross, Anthony Joseph, III

2010-12-01T23:59:59.000Z

375

Properties of crystalline phase in waste glass  

SciTech Connect (OSTI)

Depending on the operating conditions of the vitrification process of high-level liquid waste, some crystalline phases can be present. The crystalline phase exists as molten salt at glass melting temperature. In this study, the chemical and physical properties of the crystalline phase were determined. Two samples rich in Mo and a sample rich in Re were examined. One of the samples rich in Mo was obtained from simulated waste solution and glass beads in a middle scale melter, while two other samples were made from mixed reagents. The chemical forms of the constituents were determined by XRD and SEM-EDX. When Mo is dominant, the crystal is mainly composed of molybdates of Na, Li, Ba and Ca, Na{sub 2}SO{sub 4} and CsReO{sub 4}. When Re is dominant, (Na{sub x}Cs{sub 1-x})ReO{sub 4} and NaLiMoO{sub 4} are added. The characteristic temperature and the heat of transition were determined by differential scanning calorimetry. The density of the molten salt at high temperature was measured from buoyancy. The density of the molten salt is larger than that of molten glass, and increases with Re content. (authors)

Usami, T.; Uruga, K.; Tsukada, T. [Central Research Institute of Electric Power Industry, Komae-shi, Tokyo 201-8511 (Japan); Miura, Y.; Komamine, S.; Ochi, E. [Japan Nuclear Fuel Limited, Rokkasho-mura, Aomori 039-3212 (Japan)

2013-07-01T23:59:59.000Z

376

TBU-0061- In the Matter of Misti Wall  

Broader source: Energy.gov [DOE]

Misti Wall (the complainant or Wall), appeals the dismissal of her complaint of retaliation filed under 10 C.F.R. Part 708, the Department of Energy (DOE) Contractor Employee Protection Program. As...

377

Double Diffusion in Enclosure Bounded by Massive and Volatilizing Walls  

E-Print Network [OSTI]

-10), are considered. Other governing parameters are maintained constant (Rayleigh number, Prandtl number, Lewis number and width ratio of massive wall to enclosure). The conjugate heat transfer of the thick wall and indoor airflow and the enhanced heat transfer...

Liu, D.; Tang, G.; Zhao, F.

2006-01-01T23:59:59.000Z

378

Helium Pumping Wall for a Liquid Lithium Tokamak Richard Majeski...  

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

Helium Pumping Wall for a Liquid Lithium Tokamak Richard Majeski This invention is designed to be a subsystem of a device, a tokamak with walls or plasma facing components of...

379

After Exodus : re-occupation of the metropolitan wall  

E-Print Network [OSTI]

The title "Exodus alludes to a restricted exclave encircled by a forbidding wall -- effect, a prison on the scale of a metropolis, and one in which people sought refuge voluntarily. Over the past forty years, similar walls ...

Allison, Jordan Lloyd Norman

2012-01-01T23:59:59.000Z

380

EMPIRICAL MODEL FOR FORMULATION OF CRYSTAL-TOLERANT HLW GLASSES  

SciTech Connect (OSTI)

Historically, high-level waste (HLW) glasses have been formulated with a low liquideus temperature (T{sub L}), or temperature at which the equilibrium fraction of spinel crystals in the melt is below 1 vol % (T{sub 0.01}), nominally below 1050 C. These constraints cannot prevent the accumulation of large spinel crystals in considerably cooler regions ({approx} 850 C) of the glass discharge riser during melter idling and significantly limit the waste loading, which is reflected in a high volume of waste glass, and would result in high capital, production, and disposal costs. A developed empirical model predicts crystal accumulation in the riser of the melter as a function of concentration of spinel-forming components in glass, and thereby provides guidance in formulating crystal-tolerant glasses that would allow high waste loadings by keeping the spinel crystals small and therefore suspended in the glass.

KRUGER AA; MATYAS J; HUCKLEBERRY AR; VIENNA JD; RODRIGUEZ CA

2012-03-07T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

Sintering and crystallization of akermanite-based glass–ceramics  

Science Journals Connector (OSTI)

Akermanite-based glass–ceramics were successfully produced from the SiO2–Al2O3–B2O3–MgO–CaO–Na2O–F system via sintering and crystallization of glass-powder compacts at low temperatures between 750 and 800 °C. The experimental results indicated that the amount of Al2O3 in the parent glass composition is seemingly a key factor with regard to the potential of this system to crystallize into a mono-mineral akermanite glass–ceramic. The aesthetics and the mechanical, the chemical and the thermal properties of the produced glass–ceramics in conjunction with the evaluation of the economic processing route proposed qualify these glass–ceramics for further investigation as potential materials suitable for applications in restorative dentistry.

J.M.G. Ventura; D.U. Tulyaganov; S. Agathopoulos; J.M.F. Ferreira

2006-01-01T23:59:59.000Z

382

Stress measurements in glass using shaped-charge jets  

Science Journals Connector (OSTI)

Stresses were measured in glass targets in the vicinity of a penetrating shaped-charge jet. Stress levels of approximately 0.3 \\{GPa\\} were measured 12–20mm away from a jet formed by a 35mm copper liner. High speed framing camera photographs showed that the penetration velocity in the glass was 2.57 km/s and the glass fracture velocity was 2.10 km/s.

William Lawrence; Robert E. Franz

1987-01-01T23:59:59.000Z

383

Formulation and Characterization of Waste Glasses with Varying Processing Temperature  

SciTech Connect (OSTI)

This report documents the preliminary results of glass formulation and characterization accomplished within the finished scope of the EM-31 technology development tasks for WP-4 and WP-5, including WP-4.1.2: Glass Formulation for Next Generation Melter, WP-5.1.2.3: Systematic Glass Studies, and WP-5.1.2.4: Glass Formulation for Specific Wastes. This report also presents the suggested studies for eventual restart of these tasks. The initial glass formulation efforts for the cold crucible induction melter (CCIM), operating at {approx}1200 C, with selected HLW (AZ-101) and LAW (AN-105) successfully developed glasses with significant increase of waste loading compared to that is likely to be achieved based on expected reference WTP formulations. Three glasses formulated for AZ-101HLW and one glass for AN-105 LAW were selected for the initial CCIM demonstration melter tests. Melter tests were not performed within the finished scope of the WP-4.1.2 task. Glass formulations for CCIM were expanded to cover additional HLWs that have high potential to successfully demonstrate the unique advantages of the CCIM technologies based on projected composition of Hanford wastes. However, only the preliminary scoping tests were completed with selected wastes within the finished scope. Advanced glass formulations for the reference WTP melter, operating at {approx}1200 C, were initiated with selected specific wastes to determine the estimated maximum waste loading. The incomplete results from these initial formulation efforts are summarized. For systematic glass studies, a test matrix of 32 high-aluminum glasses was completed based on a new method developed in this study.

Kim, Dong-Sang; Schweiger, M. J.; Rodriguez, Carmen P.; Lepry, William C.; Lang, Jesse B.; Crum, Jarrod V.; Vienna, John D.; Johnson, Fabienne; Marra, James C.; Peeler, David K.

2011-10-17T23:59:59.000Z

384

Method for forming glass-to-metal seals  

DOE Patents [OSTI]

A method for forming a glass-to-metal seal in which the glass has a higher melting point than the metal. The molten glass is vacuum injection molded onto the metal, thus melting a very thin layer of the surface of the metal long enough to form a seal, but not long enough to cause a distortion in the shape of the metal component.

Kramer, Daniel P. (Dayton, OH); Massey, Richard T. (Hamilton, OH)

1986-01-01T23:59:59.000Z

385

Ionic Ckonductivity and Glass Transition of Phosphoric Acids  

SciTech Connect (OSTI)

Here we report the low-temperature dielectric and viscoelastic properties of phosphoric acids in the range of H2O:P2O5 1.5 5. Both dielectric and viscosity measurements allow us to determine the glass-transition temperatures of phosphoric acids. The obtained glass-transition temperatures are in good agreement with previous differential scanning calorimetric measurements. Moreover, our analysis reveals moderate decoupling of ionic conductivity from structural relaxation in the vicinity of the glass transition.

Wang, Yangyang [ORNL; Lane, Nathan A [ORNL; Sun, Che-Nan [Oak Ridge National Laboratory (ORNL); Fan, Fei [ORNL; Zawodzinski, Thomas [University of Tennessee, Knoxville (UTK); Sokolov, Alexei P [ORNL

2013-01-01T23:59:59.000Z

386

Using sputter coated glass to stabilize microstrip gas chambers  

DOE Patents [OSTI]

By sputter coating a thin-layer of low-resistive, electronically-conductive glass on various substrates (including quartz and ceramics, thin-film Pestov glass), microstrip gas chambers (MSGC) of high gain stability, low leakage current, and a high rate capability can be fabricated. This design can make the choice of substrate less important, save the cost of ion-implantation, and use less glass material.

Gong, Wen G. (Albany, CA)

1997-01-01T23:59:59.000Z

387

Ionic conductivity and glass transition of phosphoric acids  

SciTech Connect (OSTI)

Here we report the low-temperature dielectric and viscoelastic properties of phosphoric acids in the range of H2O:P2O5 1.5 5. Both dielectric and viscosity measurements allow us to determine the glass-transition temperatures of phosphoric acids. The obtained glass-transition temperatures are in good agreement with previous differential scanning calorimetric measurements. Moreover, our analysis reveals moderate decoupling of ionic conductivity from structural relaxation in the vicinity of the glass transition.

Wang, Yangyang [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL); Lane, Nathan A [ORNL] [ORNL; Sun, Che-Nan [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL); Fan, Fei [ORNL] [ORNL; Zawodzinski, Thomas [University of Tennessee, Knoxville (UTK)] [University of Tennessee, Knoxville (UTK); Sokolov, Alexei P [ORNL] [ORNL

2013-01-01T23:59:59.000Z

388

Reading the Cosmic Writing on the Wall  

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

Reading the Cosmic Reading the Cosmic Writing on the Wall Reading the Cosmic Writing on the Wall NERSC Key to Planck's Revision of Universal Recipe March 21, 2013 Contact: Margie Wylie, mwylie@lbl.gov, + 1 510 486 7421 map800-600.jpg This map shows the oldest light in our universe, as detected with the greatest precision yet by the Planck mission. The ancient light, called the cosmic microwave background, was imprinted on the sky when the universe was 370,000 years old. (Image credit: ESA and the Planck Collaboration) Thanks to a supersensitive space telescope and some sophisticated supercomputing, scientists from the international Planck collaboration have made the closest reading yet of the most ancient story in our universe: the cosmic microwave background (CMB). Today, the team released preliminary results based on the Planck

389

Gravitational infall in the hard wall model  

E-Print Network [OSTI]

An infalling shell in the hard wall model provides a simple holographic model for energy injection in a confining gauge theory. Depending on its parameters, a scalar shell either collapses into a large black brane, or scatters between the hard wall and the anti-de Sitter boundary. In the scattering regime, we find numerical solutions that keep oscillating for as long as we have followed their evolution, and we provide an analytic argument that shows that a black brane can never be formed. This provides examples of states in infinite-volume field theory that never thermalize. We find that the field theory expectation value of a scalar operator keeps oscillating, with an amplitude that undergoes modulation.

B. Craps; E. J. Lindgren; A. Taliotis; J. Vanhoof; H. Zhang

2014-12-15T23:59:59.000Z

390

Enhanced dielectric-wall linear accelerator  

DOE Patents [OSTI]

A dielectric-wall linear accelerator is enhanced by a high-voltage, fast e-time switch that includes a pair of electrodes between which are laminated alternating layers of isolated conductors and insulators. A high voltage is placed between the electrodes sufficient to stress the voltage breakdown of the insulator on command. A light trigger, such as a laser, is focused along at least one line along the edge surface of the laminated alternating layers of isolated conductors and insulators extending between the electrodes. The laser is energized to initiate a surface breakdown by a fluence of photons, thus causing the electrical switch to close very promptly. Such insulators and lasers are incorporated in a dielectric wall linear accelerator with Blumlein modules, and phasing is controlled by adjusting the length of fiber optic cables that carry the laser light to the insulator surface. 6 figs.

Sampayan, S.E.; Caporaso, G.J.; Kirbie, H.C.

1998-09-22T23:59:59.000Z

391

Wall, Pennsylvania: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Wall, Pennsylvania: Energy Resources Wall, Pennsylvania: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 40.3936801°, -79.7861577° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.3936801,"lon":-79.7861577,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

392

Window Spacers and Edge Seals in Insulating Glass Units: A State-of-the-Art Review and Future Perspectives  

E-Print Network [OSTI]

2012) [53] Bystronic Glass, Sashlite, http://www.bystronic-products_architectural_ glass/window_manufacturing/sashline/Production and Quality, Glass Processing Days (2005) 228-

Bergh, Sofie Van Den

2014-01-01T23:59:59.000Z

393

Manipulation and Imaging of Individual Single-Walled Carbon Nanotubes  

E-Print Network [OSTI]

Manipulation and Imaging of Individual Single-Walled Carbon Nanotubes with an Atomic Force Microscope** By Henk W. C. Postma, Allard Sellmeijer, and Cees Dekker* Carbon nanotubes[1] have attracted-walled nanotubes,[3±5] the prototype single-walled tubes are much more difficult to study since their diameter

394

Proposal on Lithium Wall Experiment (LWX) on PBXM 1  

E-Print Network [OSTI]

Proposal on Lithium Wall Experiment (LWX) on PBX­M 1 Leonid E. Zakharov, Princeton University; OUTLINE 1. Mini­conference on Lithium walls and low recycling regime. 2. PBX­M Capabilities. 3. Motivation "Lithium covered walls and low recycling regimes in toka­ maks". APS meeting, October 23­27, 2000, Quebec

Zakharov, Leonid E.

395

Particle Sizing using Passive Ultrasonic Measurement of Vessel Wall Vibrations  

E-Print Network [OSTI]

Particle Sizing using Passive Ultrasonic Measurement of Vessel Wall Vibrations Gillian Carson for particle sizing using an ultrasonic transducer to measure vessel wall vibrations and 1 #12;considers in a stirred vessel, its subse- quent impact with the vessel wall, and the resulting flexural vibrations

Mottram, Nigel

396

Brick Walls and AdS/CFT  

E-Print Network [OSTI]

We discuss the relationship between the bulk-boundary correspondence in Rehren's algebraic holography (and in other 'fixed-background' approaches to holography) and in mainstream 'Maldacena AdS/CFT'. Especially, we contrast the understanding of black-hole entropy from the viewpoint of QFT in curved spacetime -- in the framework of 't Hooft's 'brick wall' model -- with the understanding based on Maldacena AdS/CFT. We show that the brick-wall modification of a Klein Gordon field in the Hartle-Hawking-Israel state on 1+2-Schwarzschild AdS (BTZ) has a well-defined boundary limit with the same temperature and entropy as the brick-wall-modified bulk theory. One of our main purposes is to point out a close connection, for general AdS/CFT situations, between the puzzle raised by Arnsdorf and Smolin regarding the relationship between Rehren's algebraic holography and mainstream AdS/CFT and the puzzle embodied in the 'correspondence principle' proposed by Mukohyama and Israel in their work on the brick-wall approach to black hole entropy. Working on the assumption that similar results will hold for bulk QFT other than the Klein Gordon field and for Schwarzschild AdS in other dimensions, and recalling the first author's proposed resolution to the Mukohyama-Israel puzzle based on his 'matter-gravity entanglement hypothesis', we argue that, in Maldacena AdS/CFT, the algebra of the boundary CFT is isomorphic only to a proper subalgebra of the bulk algebra, albeit (at non-zero temperature) the (GNS) Hilbert spaces of bulk and boundary theories are still the 'same' -- the total bulk state being pure, while the boundary state is mixed (thermal). We also argue from the finiteness of its boundary (and hence, on our assumptions, also bulk) entropy at finite temperature, that the Rehren dual of the Maldacena boundary CFT cannot itself be a QFT and must, instead, presumably be something like a string theory.

Bernard S. Kay; L. Ortiz

2014-05-22T23:59:59.000Z

397

Conserved currents for Mobius Domain Wall Fermions  

E-Print Network [OSTI]

We derive the exactly conserved vector, and almost conserved axial currents for rational approximations to the overlap operator with a general Mobius kernel. The approach maintains manifest Hermiticity, and allows matrix elements of the currents to be constructed at no extra cost after solution of the usual 5d system of equations, similar to the original approach of Furman and Shamir for domain wall Fermions.

P. A. Boyle

2014-11-20T23:59:59.000Z

398

1993 NEC 1) (Single-Walled Carbon  

E-Print Network [OSTI]

MWNT (Vapor-grown carbon fiber, VGCF)33) 10001300 34) SWNT CCVD Smalley 15) CO SWNT SWNT 1993 NEC 1) (Single-Walled Carbon Nanotubes, SWNTs) 1(a) 1nm µm µm SWNTs 2) (MWNTs) 1(c 29,30,35-41) SWNT , MgO Fe/Co, Ni/Co, Mo/Co nm SWNT VGCF Fe(CO)5 SWNT Ethanol tank Hot

Maruyama, Shigeo

399

Thermal Predictions of the Cooling of Waste Glass Canisters  

SciTech Connect (OSTI)

Radioactive liquid waste from five decades of weapons production is slated for vitrification at the Hanford site. The waste will be mixed with glass forming additives and heated to a high temperature, then poured into canisters within a pour cave where the glass will cool and solidify into a stable waste form for disposal. Computer simulations were performed to predict the heat rejected from the canisters and the temperatures within the glass during cooling. Four different waste glass compositions with different thermophysical properties were evaluated. Canister centerline temperatures and the total amount of heat transfer from the canisters to the surrounding air are reported.

Donna Post Guillen

2014-11-01T23:59:59.000Z

400

Poisson's Ratio and the Densification of Glass under High Pressure  

SciTech Connect (OSTI)

Because of a relatively low atomic packing density, (C{sub g}) glasses experience significant densification under high hydrostatic pressure. Poisson's ratio ({nu}) is correlated to C{sub g} and typically varies from 0.15 for glasses with low C{sub g} such as amorphous silica to 0.38 for close-packed atomic networks such as in bulk metallic glasses. Pressure experiments were conducted up to 25 GPa at 293 K on silica, soda-lime-silica, chalcogenide, and bulk metallic glasses. We show from these high-pressure data that there is a direct correlation between {nu} and the maximum post-decompression density change.

Rouxel, T.; Ji, H. [Applied Mechanics Laboratory of the University of Rennes 1, LARMAUR, Universite de Rennes 1, Campus de Beaulieu, 35042 Rennes cedex (France); Hammouda, T. [Laboratoire Magmas et Volcans, CNRS-OPG , Universite Blaise Pascal, 5 rue Kessler, 63038 Clermont-Ferrand cedex (France); Moreac, A. [IPR, CNRS-Universite de Rennes 1, Campus de Beaulieu, 35042 Rennes cedex (France)

2008-06-06T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

Optical glass polishing by controlled laser surface-heat treatment  

Science Journals Connector (OSTI)

It is shown that optical surfaces traditionally ground in conventional glasses with high coefficients of thermal expansion may be polished by irradiation with a space- and...

Laguarta, F; Lupon, N; Armengol, J

1994-01-01T23:59:59.000Z

402

China Glass Solar aka CG Solar formerly Weihai Bluestar Terra...  

Open Energy Info (EERE)

Solar aka CG Solar formerly Weihai Bluestar Terra Photovoltaic Co Ltd Jump to: navigation, search Name: China Glass Solar (aka CG Solar, formerly Weihai Bluestar Terra Photovoltaic...

403

Glass fiber composition. [for use as thermal insulation  

DOE Patents [OSTI]

The invention relates to a glass fiber composition useful for thermal insulation having a low melting temperature and high chemical durability.

Wolf, G.A.; Kupfer, M.J.

1980-12-19T23:59:59.000Z

404

Method of calculation of heat generation rates for DWPF glass  

SciTech Connect (OSTI)

The Waste Acceptance Preliminary Specifications (WAPS) require estimates of the heat generation rate of DWPF waste glasses. Estimates of the heat generation rates of projected glass compositions are to be reported in the Waste Form Qualification Report. Similar estimates for actual production glasses are to be reported in the Production Records. In this report, a method of calculating the heat generation rate from the radionuclide inventory is provided. Application of the method to the DWPF Design-Basis glass indicates that the heat generation rate can be accurately estimated from the Sr-90, Y-90, Cs-137, Ba-137m, and Pu-238 contents alone.

Plodinec, M.J.

1992-03-17T23:59:59.000Z

405

Method of calculation of heat generation rates for DWPF glass  

SciTech Connect (OSTI)

The Waste Acceptance Preliminary Specifications (WAPS) require estimates of the heat generation rate of DWPF waste glasses. Estimates of the heat generation rates of projected glass compositions are to be reported in the Waste Form Qualification Report. Similar estimates for actual production glasses are to be reported in the Production Records. In this report, a method of calculating the heat generation rate from the radionuclide inventory is provided. Application of the method to the DWPF Design-Basis glass indicates that the heat generation rate can be accurately estimated from the Sr-90, Y-90, Cs-137, Ba-137m, and Pu-238 contents alone.

Plodinec, M.J.

1993-02-04T23:59:59.000Z

406

Thermal Gradient Holes At Glass Mountain Area (Cumming And Mackie...  

Open Energy Info (EERE)

Area (Cumming And Mackie, 2007) Exploration Activity Details Location Glass Mountain Geothermal Area Exploration Technique Thermal Gradient Holes Activity Date Usefulness not...

407

Time-Domain Electromagnetics At Glass Mountain Area (Cumming...  

Open Energy Info (EERE)

Time-Domain Electromagnetics At Glass Mountain Area (Cumming And Mackie, 2007) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Time-Domain...

408

Bose Glass of Quasiparticles in Doped Quantum Magnet Gregory...  

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

Bose Glass of Quasiparticles in Doped Quantum Magnet Gregory S. Boebinger, National High Magnetic Field Laboratory DMR-Award 0654118 High BT Facility & Pulsed Field Facility When...

409

Multispectral Imaging At Glass Buttes Area (DOE GTP) | Open Energy...  

Open Energy Info (EERE)

Retrieved from "http:en.openei.orgwindex.php?titleMultispectralImagingAtGlassButtesArea(DOEGTP)&oldid511008" Categories: Geothermal Exploration Activities DOE...

410

Compound and Elemental Analysis At Glass Buttes Area (DOE GTP...  

Open Energy Info (EERE)

Area (DOE GTP) Exploration Activity Details Location Glass Buttes Area Exploration Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding...

411

Dynamical heterogeneities in an attraction driven colloidal glass  

E-Print Network [OSTI]

The dynamical heterogeneities (DH) in non-ergodic states of an attractive colloidal glass are studied, as a function of the waiting time. Whereas the fluid states close to vitrify showed strong DH, the distribution of squared displacements of the glassy states studied here only present a tail of particles with increased mobility for the lower attraction strength at short waiting times. These particles are in the surface of the percolating cluster that comprises all of the particles, reminiscent of the fastest particles in the fluid. The quench deeper into the attractive glass is dynamically more homogeneous, in agreement with repulsive glasses (i.e. Lennard-Jones glass).

Antonio M. Puertas; Matthias Fuchs; Michael E. Cates

2005-10-17T23:59:59.000Z

412

Welding/sealing glass-enclosed space in a vacuum  

DOE Patents [OSTI]

A method of welding and sealing the edges of two juxtaposed glass sheets together to seal a vacuum space between the sheets comprises the steps of positioning a radiation absorbant material, such as FeO, VO.sub.2, or NiO, between the radiation transmissive glass sheets adjacent the edges and then irradiating the absorbant material, preferably with a laser beam, through at least one of the glass sheets. Heat produced by the absorbed radiation in the absorbant material melts glass in the portions of both glass sheets that are adjacent the absorbant material, and the melted glass from both sheets flows together to create the weld when the melted glass cools and hardens. The absorbant material can be dissolved and diffused into the melted glass to the extent that it no longer absorbs enough energy to keep the glass melted, thus, with appropriate proportioning of absorbant material to source energy power and welding heat needed, the process can be made self-stopping.

Tracy, C. Edwin (Golden, CO); Benson, David K. (Golden, CO)

1996-01-01T23:59:59.000Z

413

Aeromagnetic Survey At Glass Buttes Area (DOE GTP) | Open Energy...  

Open Energy Info (EERE)

(1 January 2011) GTP ARRA Spreadsheet Additional References Retrieved from "http:en.openei.orgwindex.php?titleAeromagneticSurveyAtGlassButtesArea(DOEGTP)&oldid402411...

414

Potential for energy conservation in the glass industry  

SciTech Connect (OSTI)

While the glass industry (flat glass, container glass, pressed and blown glass, and insulation fiber glass) has reduced its specific energy use (Btu/ton) by almost 30% since 1972, significant potential for further reduction still remains. State-of-the-art technologies are available which could lead to incremental improvements in glass industry energy productivity; however, these technologies must compete for capital with projects undertaken for other reasons (e.g., capacity expansion, equipment rebuild, labor cost reduction, product quality improvement, or compliance with environmental, health or safety regulations). Narrowing profit margins in the large tonnage segments of the glass industry in recent years and the fact that energy costs represent less than 25% of the value added in glass manufacture have combined to impede the widespread adoption of many state-of-the-art conservation technologies. Savings in energy costs alone have not provided the incentive to justify the capital expenditures required to realize the energy savings. Beyond implementation of state-of-the-art technologies, significant potential energy savings could accrue from advanced technologies which represent a radical departure from current glass making technology. Long-term research and development (R and D) programs, which address the technical and economic barriers associated with advanced, energy-conserving technologies, offer the opportunity to realize this energy-saving potential.

Garrett-Price, B.A.; Fassbender, A.G.; Bruno, G.A.

1986-06-01T23:59:59.000Z

415

Phenomenology of Wall Bounded Newtonian Turbulence  

E-Print Network [OSTI]

We construct a simple analytic model for wall-bounded turbulence, containing only four adjustable parameters. Two of these parameters characterize the viscous dissipation of the components of the Reynolds stress-tensor and other two parameters characterize their nonlinear relaxation. The model offers an analytic description of the profiles of the mean velocity and the correlation functions of velocity fluctuations in the entire boundary region, from the viscous sub-layer, through the buffer layer and further into the log-layer. As a first approximation, we employ the traditional return-to-isotropy hypothesis, which yields a very simple distribution of the turbulent kinetic energy between the velocity components in the log-layer: the streamwise component contains a half of the total energy whereas the wall-normal and the cross-stream components contain a quarter each. In addition, the model predicts a very simple relation between the von-K\\'arm\\'an slope $\\kappa $ and the turbulent velocity in the log-law region $v^+$ (in wall units): $v^+=6 \\kappa$. These predictions are in excellent agreement with DNS data and with recent laboratory experiments.

Victor S. L'vov; Anna Pomyalov; Itamar Procaccia; Sergej S. Zilitinkevich

2005-06-28T23:59:59.000Z

416

Molten Glass for Thermal Storage: Advanced Molten Glass for Heat Transfer and Thermal Energy Storage  

SciTech Connect (OSTI)

HEATS Project: Halotechnics is developing a high-temperature thermal energy storage system using a new thermal-storage and heat-transfer material: earth-abundant and low-melting-point molten glass. Heat storage materials are critical to the energy storage process. In solar thermal storage systems, heat can be stored in these materials during the day and released at night—when the sun is not out—to drive a turbine and produce electricity. In nuclear storage systems, heat can be stored in these materials at night and released to produce electricity during daytime peak-demand hours. Halotechnics new thermal storage material targets a price that is potentially cheaper than the molten salt used in most commercial solar thermal storage systems today. It is also extremely stable at temperatures up to 1200°C—hundreds of degrees hotter than the highest temperature molten salt can handle. Being able to function at high temperatures will significantly increase the efficiency of turning heat into electricity. Halotechnics is developing a scalable system to pump, heat, store, and discharge the molten glass. The company is leveraging technology used in the modern glass industry, which has decades of experience handling molten glass.

None

2012-01-01T23:59:59.000Z

417

Celloidosomes® via glass-based microfluidics  

Science Journals Connector (OSTI)

We report a glass-based microfluidic route for the generation of a particular class of celloidosomes consisting of an assembly of yeast cells at the outskirts of liquid drops inside an also liquid continuous phase. This is the first demonstration of the encapsulation of cells into shells of alginate surrounding a liquid core. The microfluidic method based on double emulsion technology allows precise control on the size of the celloidosomes, thickness of the outer shell, and the cell density. In addition, this surface encapsulation technique can potentially overcome cell viability issues usually associated with bulk cell encapsulation techniques.

V R Gundabala; S Martinez-Escobar; S M Marquez; M Marquez; A Fernandez-Nieves

2013-01-01T23:59:59.000Z

418

An infrared invisibility cloak composed of glass  

Science Journals Connector (OSTI)

We propose to implement a nonmetallic low-loss cloak for the infrared range from identical chalcogenide glassresonators. Based on transformation optics for cylindrical objects our approach does not require metamaterial response to be homogeneous and accounts for the discrete nature of elementary responses governed by resonator shape illumination angle and inter-resonator coupling. Air fractions are employed to obtain the desired distribution of the cloak effective parameters. The effect of cloaking is verified by full-wave simulations of the true multiresonator structure. The feasibility of cloak fabrication is demonstrated by prototyping glass grating structures with the dimensions characteristic for the cloak resonators.

Elena Semouchkina; Douglas H. Werner; George B. Semouchkin; Carlo Pantano

2010-01-01T23:59:59.000Z

419

Synthesis of nanocrystals in KNb(Ge,Si)O{sub 5} glasses and chemical etching of nanocrystallized glass fibers  

SciTech Connect (OSTI)

The nanocrystallization behavior of 25K{sub 2}O-25Nb{sub 2}O{sub 5}-(50-x)GeO{sub 2}-xSiO{sub 2} glasses with x=0,25,and50 (i.e., KNb(Ge,Si)O{sub 5} glasses) and the chemical etching behavior of transparent nanocrystallized glass fibers have been examined. All glasses show nanocrystallization, and the degree of transparency of the glasses studied depends on the heat treatment temperature. Transparent nanocrystallized glasses can be obtained if the glasses are heat treated at the first crystallization peak temperature. Transparent nanocrystallized glass fibers with a diameter of about 100{mu}m in 25K{sub 2}O-25Nb{sub 2}O{sub 5}-50GeO{sub 2} are fabricated, and fibers with sharpened tips (e.g., the taper length is about 450{mu}m and the tip angle is about 12{sup o}) are obtained using a meniscus chemical etching method, in which etching solutions of 10wt%-HF/hexane and 10M-NaOH/hexane are used. Although the tip (aperture size) has not a nanoscaled size, the present study suggests that KNb(Ge,Si)O{sub 5} nanocrystallized glass fibers have a potential for new near-field optical fiber probes with high refractive indices of around n=1.8 and high dielectric constants of around {epsilon}=58 (1kHz, room temperature)

Enomoto, Itaru [Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan); Benino, Yasuhiko [Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan); Fujiwara, Takumi [Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan); Komatsu, Takayuki [Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan)]. E-mail: komatsu@chem.nagaokaut.ac.jp

2006-06-15T23:59:59.000Z

420

A Study of the Filling of Wall Cavities With Retrofit Wall Insulation.  

SciTech Connect (OSTI)

The Pacific Northwest Power Marketing Agency, the Bonneville Power Administration (BPA), conducted a retrofit wall insulation study to determine the effects of various obstructions within a wall cavity, where voids are likely to occur, and preferred filling methods and material types. The insulation test structure was composed of four 8-foot /times/ 12-foot walls, and was built using standard construction practices. The inside walls were clear plastic glazing, instead of gypsum board, to enable viewing of the filling process. A total of eight tests were performed: four cellulose, two rockwool, and two fiberglass. One- and two-hole filling methods were observed. All insulations were found to perform in the same basic manner with all experiencing the same problem areas. Common installer problems were empty spaces at the tops of cavities and missed cavities, especially above headers. Wiring and lath and plaster consistently caused reduced insulation densities in cavities. The problems with wiring, lath and plaster, and other features in the wall cavities were avoided with the use of a filler tube. The filler tube also provided a more consistent fill along the length of the entire cavity. 2 figs., 3 tabs.

Flores, Joseph A.; Grill, Alan R.

1988-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

Effect of elasticity of wall on diffusion in nano channel  

SciTech Connect (OSTI)

Confining walls of nano channel are taken to be elastic to study their effect on the diffusion coefficient of fluid flowing through the channel. The wall is elastic to the extent that it responses to molecular pressure exerted by fluid. The model to study diffusion is based on microscopic considerations. Results obtained for fluid confining to 20 atomic diameter width contrasted with results obtained by considering rigid and smooth wall. The effect of roughness of wall on diffusion can be compensated by the elastic property of wall.

Tankeshwar, K., E-mail: tankesh@pu.ac.in [Computer Centre, Panjab University Chandigarh,- 160014 (India); Srivastava, Sunita [Department of Physics, Panjab University, Chandigarh 160014 (India)

2014-04-24T23:59:59.000Z

422

Reduction of Glass Surface Reflectance by Ion Beam Surface Modification  

SciTech Connect (OSTI)

This is the final report for DOE contract DE-EE0000590. The purpose of this work was to determine the feasibility of the reduction of the reflection from the front of solar photovoltaic modules. Reflection accounts for a power loss of approximately 4%. A solar module having an area of one square meter with an energy conversion efficiency of 18% generates approximately 180 watts. If reflection loss can be eliminated, the power output can be increased to 187 watts. Since conventional thin-film anti-reflection coatings do not have sufficient environmental stability, we investigated the feasibility of ion beam modification of the glass surface to obtain reduction of reflectance. Our findings are generally applicable to all solar modules that use glass encapsulation, as well as commercial float glass used in windows and other applications. Ion implantation of argon, fluorine, and xenon into commercial low-iron soda lime float glass, standard float glass, and borosilicate glass was studied by implantation, annealing, and measurement of reflectance. The three ions all affected reflectance. The most significant change was obtained by argon implantation into both low-iron and standard soda-lime glass. In this way samples were formed with reflectance lower than can be obtained with a single-layer coatings of magnesium fluoride. Integrated reflectance was reduced from 4% to 1% in low-iron soda lime glass typical of the glass used in solar modules. The reduction of reflectance of borosilicate glass was not as large; however borosilicate glass is not typically used in flat plate solar modules. Unlike conventional semiconductor ion implantation doping, glass reflectance reduction was found to be tolerant to large variations in implant dose, meaning that the process does not require high dopant uniformity. Additionally, glass implantation does not require mass analysis. Simple, high current ion implantation equipment can be developed for this process; however, before the process can be employed on full scale solar modules, equipment must be developed for ion implanting large sheets of glass. A cost analysis shows that the process can be economical. Our finding is that the reduction of reflectance by ion beam surface modification is technically and economically feasible. The public will benefit directly from this work by the improvement of photovoltaic module efficiency, and indirectly by the greater understanding of the modification of glass surfaces by ion beams.

Mark Spitzer

2011-03-11T23:59:59.000Z

423

The mechanics of glass and functionalised glass surfaces E. Barthel, M. Beauvais, R. Briard, N. Chemin, D. Dalmas, C. Heitz, M. Klotz, P. Nael, A.  

E-Print Network [OSTI]

The mechanics of glass and functionalised glass surfaces E. Barthel, M. Beauvais, R. Briard, N Aubervilliers Cedex France etienne.barthel@saint-gobain.com Abstract Glass is highly sensitive to surface flaws in glass functionalisation by grafting or coating lend an even more prominent role to the surface

Paris-Sud XI, Université de

424

Evolution of glass properties during a substitution of S by Se in Ge28Sb12S60-xSex glass Guillaume Guery1,2  

E-Print Network [OSTI]

Evolution of glass properties during a substitution of S by Se in Ge28Sb12S60-xSex glass network, Université de Bordeaux I, Avenue du Dr Schweitzer, 33608 Pessac Cedex, France. Keywords: Chalcogenide glass; Raman spectroscopy; X-ray photoelectron spectroscopy; Glass properties Author whom correspondence should

Paris-Sud XI, Université de

425

Coexistence of spin-glass and ferromagnetic order in the J Heisenberg spin-glass model A. D. Beath and D. H. Ryan  

E-Print Network [OSTI]

Coexistence of spin-glass and ferromagnetic order in the ±J Heisenberg spin-glass model A. D. Beath temperature spin-glass transition at TSG=0.220 5 . Remarkably, this transition temperature is composition dependent, rising to TSG=0.25 1 by the ferromagnet­spin-glass boundary. Coexistence of ferromagnetic

Ryan, Dominic

426

Method of non-destructively inspecting a curved wall portion  

DOE Patents [OSTI]

A method of non-destructively inspecting a curved wall portion of a large and thick walled vessel for a defect by computed tomography is provided. A collimated source of radiation is placed adjacent one side of the wall portion and an array of detectors for the radiation is placed on the other side adjacent the source. The radiation from the source passing through the wall portion is then detected with the detectors over a limited angle, dependent upon the curvature of the wall of the vessel, to obtain a dataset. The source and array are then coordinately moved relative to the wall portion in steps and a further dataset is obtained at each step. The plurality of datasets obtained over the limited angle is then processed to produce a tomogram of the wall portion to determine the presence of a defect therein. In a preferred embodiment, the curved wall portion has a center of curvature so that the source and the array are positioned at each step along a respective arc curved about the center. If desired, the detector array and source can be reoriented relative to a new wall portion and an inspection of the new wall portion can be easily obtained. Further, the source and detector array can be indexed in a direction perpendicular to a plane including the limited angle in a plurality of steps so that by repeating the detecting and moving steps at each index step, a three dimensional image can be created of the wall portion.

Fong, James T. (Bethel Park, PA)

1996-01-01T23:59:59.000Z

427

Highly Energy Efficient Wall Systems Research Project | Department of  

Broader source: Energy.gov (indexed) [DOE]

Highly Energy Efficient Wall Systems Highly Energy Efficient Wall Systems Research Project Highly Energy Efficient Wall Systems Research Project The Department of Energy is currently conducting research into highly energy efficient wall systems. Walls with high R-values are better insulators, and their development can help buildings come closer to having zero net energy consumption. Project Description This project seeks to develop a commercially viable wall system up to R-40 through integration of vacuum technology with the exterior insulated façade system (EIFS). Dow Corning will develop a wall system configuration of expanded polystyrene vacuum isolation panels that can be specified for R-values of 20, 30, and 40. This project also aims to develop a unitized protection system of vacuum isolation panels and to validate current code

428

Stochastic Domain-Wall Depinning in Magnetic Nanowires  

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

Stochastic Domain-Wall Depinning Stochastic Domain-Wall Depinning in Magnetic Nanowires Stochastic Domain-Wall Depinning in Magnetic Nanowires Print Wednesday, 29 July 2009 00:00 Reliably controlling the motion of magnetic domain walls along magnetic nanowires is a key requirement for current technological development of novel classes of logic and storage devices, but understanding the nature of non-deterministic domain-wall motion remains a scientific challenge. A statistical analysis of high-resolution magnetic soft x-ray microscopy images by a Berkeley Lab-University of Hamburg group has now revealed that the stochastic behavior of the domain-wall depinning field in notch-patterned Ni80Fe20 (permalloy) nanowires depends strongly on the wire width and the notch depth. This result both provides valuable insight into the motion of magnetic-domain walls and opens a path to further technological developments in spintronics applications.

429

Domain Walls and Vortices in Chiral Symmetry Breaking  

E-Print Network [OSTI]

We study domain walls and vortices in chiral symmetry breaking in a QCD-like theory with N flavors in the chiral limit. If the axial anomaly is absent, there exist stable Abelian axial vortices winding around the spontaneously broken U(1)_A symmetry and non-Abelian axial vortices winding around both the U(1)_A and non-Abelian SU(N) chiral symmetries. In the presence of the axial anomaly term, metastable domain walls are present and Abelian axial vortices must be attached by N domain walls, forming domain wall junctions. We show that a domain wall junction decays into N non-Abelian vortices attached by domain walls, implying its metastability. We also show that domain walls decay through the quantum tunneling by creating a hole bounded by a closed non-Abelian vortex.

Minoru Eto; Yuji Hirono; Muneto Nitta

2013-09-18T23:59:59.000Z

430

Graded index antireflective coatings for glass : final report, September 1978 - February 1982  

E-Print Network [OSTI]

Glass compositions and process conditions by which broad band gradedindex antreflective films can be produced on glass surfaces have been developed. The end use for the treated glass sheet is as cover plates for flat plate ...

Haggerty, John Scarseth

1983-01-01T23:59:59.000Z

431

The effect of temperature on the bending of laminated glass beams  

E-Print Network [OSTI]

Laminated glass is comprised of multiple plates of glass bonded together with polymorphous interlayers. The interest in the use of architectural laminated glass in the construction industry has increased due to its possible advantages over...

Edel, Matthew Thomas

1997-01-01T23:59:59.000Z

432

Thermal Performance Impacts of Center-of-Glass Deflections in Installed Insulating Glazing Units  

E-Print Network [OSTI]

6] M. Bernier, Effects of Glass Plate Curvature on the U-Selkowitz, Research Needs: Glass Solar Reflectance and VinylAnalysis of Insulating Glass Units, Journal of Structural

Hart, Robert

2014-01-01T23:59:59.000Z

433

Glass fiber contamination of cigarette filters: an additional health risk to the smoker?  

Science Journals Connector (OSTI)

Articles Glass fiber contamination of cigarette filters...cigarette-appearing smoking article labeled Eclipse with glass fibers, fragments, and particles. Eclipse...insulated and bound with two wrapping mats of glass fibers. Recently, Eclipse has been modified...

J L Pauly; H J Lee; E L Hurley; K M Cummings; J D Lesses; R J Streck

1998-11-01T23:59:59.000Z

434

Glass particles produced by laser ablation for ICP-MS measurements  

E-Print Network [OSTI]

Glass particles produced by laser ablation for ICP-MS266nm) was used to generate glass particles from two sets ofWhen the current data on glass were compared with the metal

Gonzalez, J.; Liu, C.; Wen, S.; Mao, X.; Russo, R.E.

2008-01-01T23:59:59.000Z

435

Moisture Management of High-R Walls (Fact Sheet), Building America...  

Energy Savers [EERE]

wall with ccSPF cavity insulation Double stud wall with cellulose insulation and polyethylene vapor retarder Double stud wall with cellulose and 2 in. of ccSPF Double stud wall...

436

Ising model of a glass transition  

Science Journals Connector (OSTI)

Numerical simulations by Tanaka and co-workers indicate that glass-forming systems of moderately polydisperse hard-core particles, in both two and three dimensions, exhibit diverging correlation lengths. These correlations are described by Ising-like critical exponents, and are associated with diverging, Vogel-Fulcher-Tamann, structural relaxation times. Related simulations of thermalized hard disks indicate that the curves of pressure versus packing fraction for different polydispersities exhibit a sequence of transition points, starting with a liquid-hexatic transition for the monodisperse case, and crossing over with increasing polydispersity to glassy, Ising-like critical points. I propose to explain these observations by assuming that glass-forming fluids contain twofold degenerate, locally ordered clusters of particles, similar to the two-state systems that have been invoked to explain other glassy phenomena. This paper starts with a brief statistical derivation of the thermodynamics of thermalized, hard-core particles. It then discusses how a two-state, Ising-like model can be described within that framework in terms of a small number of statistically relevant, internal state variables. The resulting theory agrees accurately with the simulation data. I also propose a rationale for the observed relation between the Ising-like correlation lengths and the Vogel-Fulcher-Tamann formula.

J. S. Langer

2013-07-17T23:59:59.000Z

437

Quantum computing in a piece of glass  

E-Print Network [OSTI]

Quantum gates and simple quantum algorithms can be designed utilizing the diffraction phenomena of a photon within a multiplexed holographic element. The quantum eigenstates we use are the photon's linear momentum (LM) as measured by the number of waves of tilt across the aperture. Two properties of quantum computing within the circuit model make this approach attractive. First, any conditional measurement can be commuted in time with any unitary quantum gate - the timeless nature of quantum computing. Second, photon entanglement can be encoded as a superposition state of a single photon in a higher-dimensional state space afforded by LM. Our theoretical and numerical results indicate that OptiGrate's photo-thermal refractive (PTR) glass is an enabling technology. We will review our previous design of a quantum projection operator and give credence to this approach on a representative quantum gate grounded on coupled-mode theory and numerical simulations, all with parameters consistent with PTR glass. We discuss the strengths (high efficiencies, robustness to environment) and limitations (scalability, crosstalk) of this technology. While not scalable, the utility and robustness of such optical elements for broader quantum information processing applications can be substantial.

Warner A. Miller; Grigoriy Kreymerman; Christopher Tison; Paul M. Alsing; Jonathan R. McDonald

2011-12-15T23:59:59.000Z

438

Glass Mountain Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Glass Mountain Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Glass Mountain Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (2) 9 Exploration Activities (3) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.7,"lon":-121.45,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

439

The Glass Transition in Fluids with Magnetic Interactions  

E-Print Network [OSTI]

We study the glass transition in fluids where particles are endowed with spins, such that magnetic and positional degrees of freedom are coupled. Novel results for slowing down in the spin time-correlation functions are described, and the effects of magnetic fields on the glass transition are studied. Aging effects in such systems and the corresponding data collapse are presented and discussed.

Ricardo Gutierrez; Bhaskar Sen Gupta; Itamar Procaccia

2014-06-15T23:59:59.000Z

440

Americium/curium extraction from a lanthanide borosilicate glass  

SciTech Connect (OSTI)

A solution containing kilogram quantities of highly radioactive isotopes of americium and curium (Am/Cm) and lanthanide fission products is currently stored in a process tank at the Department of Energy`s Savannah River Site (SRS). This tank and its vital support systems are old, subject to deterioration, and prone to possible leakage. For this reason, a program has been initiated to stabilize this material as a lanthanide borosilicate (LBS) glass. The Am/Cm has commercial value and is desired for use by the heavy isotope programs at the Oak Ridge National Laboratory (ORNL). A recovery flowsheet was demonstrated using a curium containing glass to extract the Am/Cm from the glass matrix. The procedure involved grinding the glass to less than 200 mesh and dissolving in concentrated nitric acid at 110 {degrees}C. Under these conditions, the dissolution was essentially 100% after 2 hours except for the insoluble silicon. Using a nonradioactive surrogate, the expected glass dissolution rate during Am/Cm recovery was bracketed by using both static and agitated conditions. The measured rates, 0.0082 and 0.040 g/hr.sq cm, were used to develop a predictive model for the time required to dissolve a spherical glass particle in terms of the glass density, particle size, and measured rate. The calculated dissolution time was in agreement with the experimental observation that the curium glass dissolution was complete in less than 2 hrs.

Rudisill, T.S.; Pareizs, J.M.; Ramsey, W.G.

1996-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

The recycling of the coal fly ash in glass production  

SciTech Connect (OSTI)

The recycling of fly ash obtained from the combustion of coal in thermal power plant has been studied. Coal fly ash was vitrified by melting at 1773 K for 5 hours without any additives. The properties of glasses produced from coal fly ash were investigated by means of Differential Thermal Analysis (DTA), X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) techniques. DTA study indicated that there was only one endothermic peak at 1003 K corresponding to the glass transition temperature. XRD analysis showed the amorphous state of the glass sample produced from coal fly ash. SEM investigations revealed that the coal fly ash based glass sample had smooth surface. The mechanical, physical and chemical properties of the glass sample were also determined. Recycling of coal fly ash by using vitrification technique resulted to a glass material that had good mechanical, physical and chemical properties. Toxicity characteristic leaching procedure (TCLP) results showed that the heavy metals of Pb, Cr, Zn and Mn were successfully immobilized into the glass. It can be said that glass sample obtained by the recycling of coal fly ash can be taken as a non-hazardous material. Overall, results indicated that the vitrification technique is an effective way for the stabilization and recycling of coal fly ash.

Erol, M.M.; Kucukbayrak, S.; Ersoy-Mericboyu, A. [Istanbul Technical University, Istanbul (Turkey). Dept. of Chemical Engineering

2006-09-15T23:59:59.000Z

442

Thermodynamics and Universality for Mean Field Quantum Spin Glasses  

E-Print Network [OSTI]

We study aspects of the thermodynamics of quantum versions of spin glasses. By means of the Lie-Trotter formula for exponential sums of operators, we adapt methods used to analyze classical spin glass models to answer analogous questions about quantum models.

Nick Crawford

2006-10-13T23:59:59.000Z

443

Irradiation study of PNNL synthesized glass-ceramics  

SciTech Connect (OSTI)

Two types of glass-ceramic were investigated: (1) for immobilization of Ln, alkali, and alkaline earths (GC4); and (2) same as above + high (7%) molybdenum content (Mo7) multiphase specimens. The purpose was to study the radiation stability of PNNL synthesized glass-ceramics and changes in microstructure/phase composition.

Kossoy-simakov, Anna-eden [Los Alamos National Laboratory; Tang, Ming [Los Alamos National Laboratory; Valdez, James A [Los Alamos National Laboratory; Usov, Igor O [Los Alamos National Laboratory; Sickafus, Kurt E [Los Alamos National Laboratory

2011-01-18T23:59:59.000Z

444

production under ionizing radiation in aluminoborosilicate glasses by EPR spectroscopy.  

E-Print Network [OSTI]

1 Ti3+ production under ionizing radiation in aluminoborosilicate glasses by EPR spectroscopy. P irradiation of Ti4+ ions in aluminoborosilicate glasses have been studied by EPR spectroscopy at 20 K of the Ti3+ ion EPR spectra has shown three different Ti3+ environment attributed to one [VI] Ti3+ and two

Paris-Sud XI, Université de

445

Glass Development for Treatment of LANL Evaporator Bottoms Waste  

SciTech Connect (OSTI)

Vitrification is an attractive treatment option for meeting the stabilization and final disposal requirements of many plutonium (Pu) bearing materials and wastes at the Los Alamos National Laboratory (LANL) TA-55 facility, Rocky Flats Environmental Technology Site (RFETS), Hanford, and other Department of Energy (DOE) sites. The Environmental Protection Agency (EPA) has declared that vitrification is the "best demonstrated available technology" for high- level radioactive wastes (HLW) (Federal Register 1990) and has produced a handbook of vitriilcation technologies for treatment of hazardous and radioactive waste (US EPA, 1992). This technology has been demonstrated to convert Pu-containing materials (Kormanos, 1997) into durable (Lutze, 1988) and accountable (Forsberg, 1995) waste. forms with reduced need for safeguarding (McCulhun, 1996). The composition of the Evaporator Bottoms Waste (EVB) at LANL, like that of many other I%-bearing materials, varies widely and is generally unpredictable. The goal of this study is to optimize the composition of glass for EVB waste at LANL, and present the basic techniques and tools for developing optimized glass compositions for other Pu-bearing materials in the complex. This report outlines an approach for glass formulation with fixed property restrictions, using glass property-composition databases. This approach is applicable to waste glass formulation for many variable waste streams and vitrification technologies.. Also reported are the preliminary property data for simulated evaporator bottom glasses, including glass viscosity and glass leach resistance using the Toxicity Characteristic Leaching Procedure (TCLP).

DE Smith; GF Piepel; GW Veazey; JD Vienna; ML Elliott; RK Nakaoka; RP Thimpke

1998-11-20T23:59:59.000Z

446

Glass-Ceramics in U.S.S.R.  

Science Journals Connector (OSTI)

... CATALYZED Crystallization of Glass differs from ^ Volumes 1 and 2 in this series which were reports of meetings ... meetings where very varied topics were brought together under the heading of the "Structure of Glass". The concentration on the one topic has resulted in a volume which leaves a ...

R. W. DOUGLAS

1965-08-14T23:59:59.000Z

447

On the Sealing of Electrical Conductors through Glass  

Science Journals Connector (OSTI)

... AT the present time there is great difficulty in obtaining soft glass with a comparatively high coefficient of expansion, suitable for sealing wires into ... with a comparatively high coefficient of expansion, suitable for sealing wires into glass tubes, bulbs, etc. The pre-war imported stocks of ...

F. F. S. BRYSON

1915-06-03T23:59:59.000Z

448

Time Factors in the Breaking of Toughened Glass  

Science Journals Connector (OSTI)

... has been much interest in the relationship between rates of stressing and strength properties of glass, and several hypotheses and relations have been put forward in connexion with the quantitative ... of the broaking stress with increase in duration of loading should be slower with toughened glass than with sheet. However, the same conclusion follows from the quantitative formulation6 of the ...

R. N. HAWARD

1946-01-05T23:59:59.000Z

449

Central Glass and Ceramic Research Institute of India  

Science Journals Connector (OSTI)

... THE official opening of the Central Glass and Ceramic Research Institute of India at Calcutta by the Honourable Dr. B. C ... contributions on the availability and improvement in the quality of Indian raw materials for the glass and ceramic industries have already been made ; a detailed account of these investigations was ...

1950-11-18T23:59:59.000Z

450

The Late Rev. W. V. Harcourt's Researches on Glass*  

Science Journals Connector (OSTI)

... THE subject of the preparation and optical properties of glasses of a great variety of chemical positions, formed, for nearly forty years, a ... inquiry, was published in the reports, but the results of the actual experiments on glass have never yet been published. My own connection with these experiments commenced at the ...

1871-08-31T23:59:59.000Z

451

Glass Based on the oxides of Molybdenum, Tungsten and Uranium  

Science Journals Connector (OSTI)

... IN previous publications from this Laboratory, attention has been directed to glasses of unusual composition based on the oxides of tellurium and vanadium1-4. This article ... the oxides of tellurium and vanadium1-4. This article describes the development of further unusual glasses based on the oxides of molybdenum, tungsten and uranium.

P. L. BAYNTON; H. RAWSON; J. E. STANWORTH

1956-10-27T23:59:59.000Z

452

Photocatalytic activity of glass ceramics containing Nasicon-type crystals  

SciTech Connect (OSTI)

Graphical abstract: Display Omitted Highlights: ? Glass ceramics containing Nasicon-type crystals were prepared. ? The glass ceramics showed photocatalytic activity under UV irradiation. ? Higher activity was observed in the MgTi{sub 4}(PO{sub 4}){sub 6}- and CaTi{sub 4}(PO{sub 4}){sub 6}-containing glass ceramics. -- Abstract: Glass ceramics were prepared by heat-treating MO–TiO{sub 2}–P{sub 2}O{sub 5} (M = Mg, Ca, Sr and Ba) and R{sub 2}O–TiO{sub 2}–P{sub 2}O{sub 5}–SiO{sub 2} (R = Li, Na and K) glasses, and their photocatalytic activity was investigated. The crystalline phases precipitated in the glasses were only Nasicon-type crystals, MTi{sub 4}(PO{sub 4}){sub 6} or RTi{sub 2}(PO{sub 4}){sub 3}. Decomposition experiments of both methylene blue (MB) and acetaldehyde showed that the glass ceramics exhibited effective photocatalytic activity. The activity did not depend on the radius of the M{sup 2+} or R{sup +} ion, and higher activity was observed in the MgTi{sub 4}(PO{sub 4}){sub 6} and CaTi{sub 4}(PO{sub 4}){sub 6} precipitated glass ceramics.

Fu, Jie, E-mail: fu@ohara-inc.co.jp [R and D Department, Ohara Inc., Sagamihara-shi, Kanagawa 252-5286 (Japan)] [R and D Department, Ohara Inc., Sagamihara-shi, Kanagawa 252-5286 (Japan)

2013-01-15T23:59:59.000Z

453

Jena Glass and its Applications to Science and Art  

Science Journals Connector (OSTI)

... pages, in which Dr. Hovestadt has collected a mass of information about the Jena glass. In a report on the scientific apparatus of the London Exhibition of 1876, Abbe ... Exhibition of 1876, Abbe called attention to the need for progress in the art of glass making if the microscope were to advance, and to the necessity, for obtaining ...

R. T. G.

1900-12-20T23:59:59.000Z

454

Production and Decay of Mediæval Stained Glass1  

Science Journals Connector (OSTI)

... THE earliest direct evidence as to the methods of mediaeval glass-painting is contained in the treatise of Theophilusv (“Diversarum Artium Schedula”), which ... half of the twelfth century; here one finds detailed instructions for the making of the glass as well as for its formation into the flat sheets or “tables” in which ...

1907-05-02T23:59:59.000Z

455

Department of Electrical Engineering Spring 2011 Glass Block Solar Collector  

E-Print Network [OSTI]

to the sponsor. The collector incorporated a solar panel that charged a battery unit. The battery poweredPENNSTATE Department of Electrical Engineering Spring 2011 Glass Block Solar Collector Overview Pittsburgh Corning, a leading manufacturer of architectural glass blocks, wanted to incorporate a solar

Demirel, Melik C.

456

Effects of alteration product precipitation on glass dissolution  

Science Journals Connector (OSTI)

Abstract Understanding the mechanisms that control the durability of nuclear waste glass is paramount if reliable models are to be constructed so that the glass dissolution rate in a given geological repository can be calculated. Presently, it is agreed that (boro)silicate glasses dissolve in water at a rate dependent on the solution concentration of orthosilicic acid (H4SiO4) with higher [H4SiO4] leading to lower dissolution rates. Once the reaction has slowed as a result of the buildup of H4SiO4, another increase in the rate has been observed that corresponds to the precipitation of certain silica-bearing alteration products. However, it has also been observed that the concentration of silica-bearing solution species does not significantly decrease, indicating saturation, while other glass tracer elements concentrations continue to increase, indicating that the glass is still dissolving. In this study, we have used the Geochemist’s Workbench code to investigate the relationship between glass dissolution rates and the precipitation rate of a representative zeolitic silica-bearing alteration product, analcime [Na(AlSi2O6)?H2O]. To simplify the calculations, we suppressed all alteration products except analcime, gibbsite (Al(OH)3), and amorphous silica. The pseudo-equilibrium-constant matrix for amorphous silica was substituted for the glass pseudo-equilibrium-constant matrix because it has been shown that silicate glasses act as a silica-only solid with respect to kinetic considerations. In this article, we present the results of our calculations of the glass dissolution rate at different values for the analcime precipitation rate constant and the effects of varying the glass dissolution rate constant at a constant analcime precipitation rate constant. From the simulations we conclude, firstly, that the rate of glass dissolution is dependent on the kinetics of formation of the zeolitic phase. Therefore, the kinetics of secondary phase formation is an important parameter that should be taken into account in future glass dissolution modeling efforts. Secondly, the results indicate that, in the absence of a gel layer, the glass dissolution rate controls the rate of analcime precipitation in the long term. The meaning of these results pertinent to long-term glass durability is discussed.

Denis M. Strachan; James J. Neeway

2014-01-01T23:59:59.000Z

457

Detonation limits in rough walled tubes  

Science Journals Connector (OSTI)

Abstract The present paper reports the results of a study of detonation limits in rough tubes. Detonation velocity is measured by photodiodes and ionization probes spaced at 10 cm intervals along the length of the tube. Short lengths of smoked foils inserted into the core of the rough tube is used to register the structure of the detonation wave. Pressure transducers are also used to obtain the pressure profile. The results indicate that in rough tubes, the detonation velocity is generally much lower than the corresponding values for smooth tubes. The velocity decreases slowly at first and then more rapidly as the limit is approached. The velocity variation is generally continuous and at the limits, the failure velocity is of the order of about 0.4 V CJ for all cases. The detonation limits in rough tubes are found to be wider than for a smooth tube. This indicates that the turbulence generated by the wall roughness facilitates the propagation of the detonation and extends the limits. Smoked foil records show that in the core of the rough tube the detonation front has a cellular structure corresponding to the usual cellular structure due to instability of the detonation. Thus the intrinsic unstable cellular structure is quite robust and retains its global characteristics in spite of the large perturbations generated by the rough wall. The detonation in the core of the rough tube goes from multi-headed to single headed as the limit is approached. Past the single headed spin, the low velocity detonation has no cellular structure but consists of interacting weak transverse waves from the rough wall. The averaged pressure of the low velocity detonation front corresponds to about the constant volume explosion pressure, in accord with the velocity of the low velocity detonation.

Amanda Starr; John H.S. Lee; Hoi Dick Ng

2014-01-01T23:59:59.000Z

458

Glass capable of ionic conduction and method of preparation  

DOE Patents [OSTI]

Sulfide glasses capable of conducting alkali metal ions are prepared from a nonmetal glass former such as GeS[sub 2], B[sub 2]S[sub 3] and SiS[sub 2] in mixture with a glass modifier such as Na[sub 2]S or another alkali metal sulfide. A molten mixture of the constituents is rapidly quenched to below the glass transition temperature by contact with a metal mold. The rapid quench is sufficient to prevent crystallization and permit solidification as an amorphous solid mixture. An oxygen-free atmosphere is maintained over the mixture to prevent oxidation. A new glass system of (1-X) Na[sub 2]O:XB[sub 2]S[sub 3] is disclosed. 4 figs.

Susman, S.; Delbecq, C.J.; Volin, K.J.; Boehm, L.

1984-02-21T23:59:59.000Z

459

Property Data for Simulated Americium/Curium Glasses  

SciTech Connect (OSTI)

The authors studied the properties of mixed lanthanide-alumino-borosilicate glasses. Fifty-five glasses were designed to augment a previous, Phase I, study by systematically varying the composition of Ln{sub 2}O{sub 3} and the concentrations of Ln{sub 2}O{sub 3}, SiO{sub 2}, B{sub 2}O{sub 3}, Al{sub 2}O{sub 3}, and SrO in glass. These glasses were designed and fabricated at the Savannah River Technology Center and tested at the Pacific Northwest National Laboratory. The properties measured include the high-temperature viscosity ({eta}) as a function of temperature (T) and the liquidus temperature (T{sub L}) of Phase II test glasses.

Riley, B.J.; Smith, D.E.; Peeler, D.K.; Reamer, I.A.; Vienna, J.D.; Schweiger, M.J.

1999-10-20T23:59:59.000Z

460

IRON-PHOSPHATE GLASS FOR IMMOBILIZATION OF RADIOACTIVE TECHNETIUM  

SciTech Connect (OSTI)

Technetium-99 (Tc-99) can bring a serious environmental threat because of its high fission yield, long half-life, and high solubility and mobility in the ground water. The present work investigated the immobilization of Tc-99 (surrogated by Re) by heat-treating mixtures of an iron-phosphate glass with 1.5 to 6 wt.% KReO{sub 4} at {approx}1000 C. The Re retention in the glass was as high as {approx}1.2 wt. % while the loss of Re by evaporation during melting was {approx}50%. Re was uniformly distributed within the glass. The normalized Re release by the 7-day Product Consistency Test was {approx}0.39 g/m{sup 2}, comparable with that in phosphate-bonded ceramics and borosilicate glasses. These results suggest that iron-phosphate glass can provide a good matrix for immobilizing Tc-99.

KRUGER AA; HRMA PR; XU K; CHOI J; UM W; HEO J

2012-03-19T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

Iron Phosphate Glasses: An Alternative for Vitrifying Certain Nuclear Wastes  

SciTech Connect (OSTI)

Vitrification of nuclear waste in a glass is currently the preferred process for waste disposal. DOE currently approves only borosilicate (BS) type glasses for such purposes. However, many nuclear wastes, presently awaiting disposal, have complex and diverse chemical compositions, and often contain components that are poorly soluble or chemically incompatible in BS glasses. Such problematic wastes can be pre-processed and/or diluted to compensate for their incompatibility with a BS glass matrix, but both of these solutions increases the wasteform volume and the overall cost for vitrification. Direct vitrification using alternative glasses that utilize the major components already present in the waste is preferable, since it avoids pre-treating or diluting the waste, and, thus, minimizes the wasteform volume and overall cost.

Delbert E. Day; Chandra S. Ray; Cheol-Woon Kim

2004-12-28T23:59:59.000Z

462

Fabrication of TiO{sub 2} nanocrystallized glass  

SciTech Connect (OSTI)

Nanocrystallization of rutile and anatase was observed in a CaO-B{sub 2}O{sub 3}-Bi{sub 2}O{sub 3}-Al{sub 2}O{sub 3}-TiO{sub 2} crystallized glass. The color of the present crystallized glass was changed by the heat-treatment temperature, and x-ray diffraction (XRD) patterns of the crystallized glass show that the apparent color change is correlated with the formation of titania nanocrystallites. The particle size of crystallites observed in the transmission electron microscope image is comparable to that measured by XRD pattern. In addition, a large change of refractive index between the rutile particles and glass matrix, 0.8 or larger, was obtained. The present titania crystallized glass will be not only a photocatalytic material but also a promising candidate for random lasing devices.

Masai, Hirokazu; Fujiwara, Takumi; Mori, Hiroshi; Komatsu, Takayuki [Department of Applied Physics, Tohoku University, 6-6-05 Aoba, Sendai 980-8579 (Japan); Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka 940-2188 (Japan)

2007-02-19T23:59:59.000Z

463

PbO-free glasses for low temperature packaging  

SciTech Connect (OSTI)

Zinc polyphosphate glasses were examined as potential candidates for low temperature sealing applications. Glass-formation and properties were determined for the ZnO-P{sub 2}O{sub 5}, ZnO-B{sub 2}O{sub 3}-P{sub 2}O{sub 5} and ZnO-SnO-P{sub 2}O{sub 5} systems, and information about the short-range structures of these glasses was obtained by Raman and solid state nuclear magnetic resonance spectroscopies. In general, the most durable polyphosphate glasses have structures based on relatively short pyrophosphate chain lengths (i.e., 2 P-tetrahedra). Modified phosphate compositions are given, including compositions used to seal float glass substrates at temperatures as low as 500{degrees}C.

Brow, R.K.; Bencoe, D.N.; Tallant, D.R. [and others

1997-10-01T23:59:59.000Z

464

Removal Rate Model for Magnetorheological Finishing of Glass  

SciTech Connect (OSTI)

Magnetorheological finishing (MRF) is a deterministic subaperture polishing process. The process uses a magntorheological (MR) fluid that consists of micrometer-sized, spherical, magnetic carbonyl iron (CI) particles, nonmagnetic polishing abrasives, water, and stabilizers. Material removal occurs when the CI and nonmagnetic polishing abrasives shear material off the surface being polished. We introduce a new MRF material removal rate model for glass. This model contains terms for the near surface mechanical properties of glass, drag force, polishing abrasive size and concentration, chemical durability of the glass, MR fluid pH, and the glass composition. We introduce quantitative chemical predictors for the first time, to the best of our knowledge, into an MRF removal rate model. We validate individual terms in our model separately and then combine all of the terms to show the whole MRF material removal model compared with experimental data. All of our experimental data were obtained using nanodiamond MR fluids and a set of six optical glasses.

DeGroote, J.E.; Marino, A.E.; WIlson, J.P.; Bishop, A.L.; Lambropoulos, J.C.; Jacobs, S.D.

2007-11-14T23:59:59.000Z

465

Melting Instantons, Domain Walls, and Large N  

E-Print Network [OSTI]

Monte Carlo studies of $CP^{N-1}$ sigma models have shown that the structure of topological charge in these models undergoes a sharp transition at $N=N_c\\approx 4$. For $NN_c$ it is dominated by extended, thin, 1-dimensionally coherent membranes of topological charge, which can be interpreted as domain walls between discrete quasi-stable vacua. These vacua differ by a unit of background electric flux. The transition can be identified as the delocalization of topological charge, or "instanton melting," a phenomenon first suggested by Witten to resolve the conflict between instantons and large $N$ behavior. Implications for $QCD$ are discussed.

H. B. Thacker

2008-10-22T23:59:59.000Z

466

Gas turbine bucket wall thickness control  

DOE Patents [OSTI]

A core for use in casting a turbine bucket including serpentine cooling passages is divided into two pieces including a leading edge core section and a trailing edge core section. Wall thicknesses at the leading edge and the trailing edge of the turbine bucket can be controlled independent of each other by separately positioning the leading edge core section and the trailing edge core section in the casting die. The controlled leading and trailing edge thicknesses can thus be optimized for efficient cooling, resulting in more efficient turbine operation.

Stathopoulos, Dimitrios (Glenmont, NY); Xu, Liming (Greenville, SC); Lewis, Doyle C. (Greer, SC)

2002-01-01T23:59:59.000Z

467

E-Print Network 3.0 - absorbent glass mat Sample Search Results  

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

Summary: Francisco, J. Magn. and Magn. Mat., 54-57, 6 (1986). 58. Long Range Ising Spin Glasses: Critical Behavior... Structure in Ising Spin Glasses" (with Matteo...

468

Lichens and their Action on the Glass and Leadings of Church Windows  

Science Journals Connector (OSTI)

... found only on unaltered glass; they do not persist, and on disappearing leave a roughened surface conformable to their own shape. On deeply corroded glass, lichen debris, not ...

E. MELLOR

1923-10-06T23:59:59.000Z

469

Flow Test At Glass Buttes Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

Flow Test At Glass Buttes Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Glass Buttes Area (DOE GTP) Exploration...

470

Ground Gravity Survey At Glass Buttes Area (DOE GTP) | Open Energy...  

Open Energy Info (EERE)

Ground Gravity Survey At Glass Buttes Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Glass Buttes Area...

471

Field Mapping At Glass Buttes Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

Field Mapping At Glass Buttes Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Glass Buttes Area (DOE GTP)...

472

Silicon-on-glass pore network micromodels with oxygen-sensing...  

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

Silicon-on-glass pore network micromodels with oxygen-sensing fluorophore films for chemical imaging and defined spatial Silicon-on-glass pore network micromodels with...

473

Slim Holes At Glass Buttes Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Slim Holes At Glass Buttes Area (DOE GTP) Exploration Activity Details Location Glass Buttes Area...

474

Atomic trigger shatters mystery of how glass deforms | ornl.gov  

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

Atomic trigger shatters mystery of how glass deforms Bond switching underpins warping of strong metallic glasses Joint Institute for Neutron Sciences Director Takeshi Egami, left,...

475

Flame-wall interaction simulation in a turbulent channel flow  

SciTech Connect (OSTI)

The interaction between turbulent premixed flames and channel walls is studied. Combustion is represented by a simple irreversible reaction with a large activation temperature. A low heat release assumption is used, but feedback to the flowfield can be allowed through viscosity changes. The effect of wall distance on local and global flame structure is investigated. Quenching distances and maximum wall heat fluxed computed in laminar cases are compared to DNS results. It is found that quenching distances decrease and maximum heat fluxes increase relative to laminar flame values, scaling with the turbulent strain rate. It is shown that these effects are due to large coherent structures which push flame elements towards the wall. The effect of wall strain in flame-wall interaction is studied in a stagnation line flow; this is used to explain the DNS results. The effects of the flame on the flow through viscosity changes is studied. It is also shown that remarkable flame events are produced by flame interaction with a horseshoe vortex: burned gases are pushed towards the wall at high speed and induce quenching and high wall heat flux while fresh gases are expelled from the wall region and form finger-like structures. Effects of the wall on flame surface density are investigated.

Bruneaux, G.; Akselvoll, K.; Poinsot, T.; Ferziger, J.H.

1996-10-01T23:59:59.000Z

476

Effect of glass composition on activation energy of viscosity in glass-melting-temperature range  

SciTech Connect (OSTI)

In the high-temperature range, where the viscosity (Eta) of molten glass is <10{sup 3} Pa s, the activation energy (B) is virtually ln(Eta) = A + B/T, is nearly independent of melt composition. Hence, the viscosity-composition relationship for Eta < 10{sup 3} Pa s is defined by B as a function of composition. Using a database encompassing over 1300 compositions of high-level waste glasses with nearly 7000 viscosity data, we developed mathematical models for B(x), where x is the composition vector in terms of mass fractions of components. In this paper, we present 13 versions of B(x) as first- and second-order polynomials with coefficients for 15 to 39 components, including Others, a component that sums constituents having little effect on viscosity.

Hrma, Pavel R.; Han, Sang Soo

2012-08-01T23:59:59.000Z

477

Chem. Phys. Lett. in press Cold wall CVD generation of single-walled carbon nanotubes  

E-Print Network [OSTI]

-furnace [3] and arc-discharge [4] methods, several techniques employing the CVD approach [5-13] have been Catalytic CVD generation of high-purity single-walled carbon nanotubes (SWNTs) without use of an electric without resort to an electric furnace or a hot filament is proposed. All one needs is a vacuum chamber

Maruyama, Shigeo

478

Carrying Out and Developing the Glass Industry Vision and Roadmap  

SciTech Connect (OSTI)

In support of its obligations under the above-mentioned project, the GMIC performed the following tasks: (1) Provided two-way communications liaison services between the U.S. glass industry and the D.O.E. to ensure the needs and concerns of each party are effectively communicated to the other. (2) Updated and modified on a continuing basis and in response to evolving conditions within the glass industry, the goals and priorities outlined in the Glass Industry Vision and the Glass Technology Roadmap. (3) Established relationships with a wide variety of government and non-governmental organizations with interests in further improving the levels of technology, productivity and environmental responsibility of the glass industry. (4) Canvassed the glass industry on an ongoing basis to determine overall and specific sector needs for technological development. (5) Fostered direct contacts between member companies and national laboratories to facilitate the development of individual company technology development. (6) Advised the DOE on the key elements of the solicitation process in support of the Glass Industry Vision and Technology Roadmap. In the course of this contract, the membership of the GMIC has grown to include over 70% of the glass industry. This gives it the ability to communicate persuasively with the vast majority of this energy intensive industry. One of the principal benefits of the existence of the GMIC is that, for the first time in this country, representative companies of all major sectors of the glass industry are now in regular communication with each other. Prior to the existence and activity of the GMIC, companies and individuals in the flat glass, container glass, fiber glass and specialty glass sectors rarely had contact with each other, in spite of the fact that they all face similar challenges and can benefit from pre-competitive research conducted to the benefit of the broad industry. The development of innovations in the industry under cost-shared DOE/industry research projects such as new melting technologies, sensors and controls, modeling programs, energy efficiency tools, etc. has led to substantial increases in energy efficiency in the industry. Increased energy efficiency results in increased job opportunities in the industry that has been negatively impacted by increases in energy costs, globalization and increased environmental controls.

Michael Greenman

2007-06-14T23:59:59.000Z

479

Cogeneration from glass furnace waste heat recovery  

SciTech Connect (OSTI)

In glass manufacturing 70% of the total energy utilized is consumed in the melting process. Three basic furnaces are in use: regenerative, recuperative, and direct fired design. The present paper focuses on secondary heat recovery from regenerative furnaces. A diagram of a typical regenerative furnace is given. Three recovery bottoming cycles were evaluated as part of a comparative systems analysis: steam Rankine Cycle (SRC), Organic Rankine Cycle (ORC), and pressurized Brayton cycle. Each cycle is defined and schematicized. The net power capabilities of the three different systems are summarized. Cost comparisons and payback period comparisons are made. Organic Rankine cycle provides the best opportunity for cogeneration for all the flue gas mass flow rates considered. With high temperatures, the Brayton cycle has the shortest payback period potential, but site-specific economics need to be considered.

Hnat, J.G.; Cutting, J.C.; Patten, J.S.

1982-06-01T23:59:59.000Z

480

Precision diamond grinding of ceramics and glass  

SciTech Connect (OSTI)

A new research initiative will be undertaken to investigate the effect of machine parameters and material properties on precision diamond grinding of ceramics and glass. The critical grinding depth to initiate the plastic flow-to-brittle fracture regime will be directly measured using plunge-grind tests. This information will be correlated with machine parameters such as wheel bonding and diamond grain size. Multiaxis grinding tests will then be made to provide data more closely coupled with production technology. One important aspect of the material property studies involves measuring fracture toughness at the very short crack sizes commensurate with grinding damage. Short crack toughness value`s can be much less than the long-crack toughness values measured in conventional fracture tests.

Smith, S.; Paul, H.; Scattergood, R.O.

1988-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "glass curtain walls" 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

Stochastic Domain-Wall Depinning in Magnetic Nanowires  

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

Stochastic Domain-Wall Depinning in Magnetic Nanowires Print Stochastic Domain-Wall Depinning in Magnetic Nanowires Print Reliably controlling the motion of magnetic domain walls along magnetic nanowires is a key requirement for current technological development of novel classes of logic and storage devices, but understanding the nature of non-deterministic domain-wall motion remains a scientific challenge. A statistical analysis of high-resolution magnetic soft x-ray microscopy images by a Berkeley Lab-University of Hamburg group has now revealed that the stochastic behavior of the domain-wall depinning field in notch-patterned Ni80Fe20 (permalloy) nanowires depends strongly on the wire width and the notch depth. This result both provides valuable insight into the motion of magnetic-domain walls and opens a path to further technological developments in spintronics applications.

482

Stochastic Domain-Wall Depinning in Magnetic Nanowires  

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

Stochastic Domain-Wall Depinning in Magnetic Nanowires Print Stochastic Domain-Wall Depinning in Magnetic Nanowires Print Reliably controlling the motion of magnetic domain walls along magnetic nanowires is a key requirement for current technological development of novel classes of logic and storage devices, but understanding the nature of non-deterministic domain-wall motion remains a scientific challenge. A statistical analysis of high-resolution magnetic soft x-ray microscopy images by a Berkeley Lab-University of Hamburg group has now revealed that the stochastic behavior of the domain-wall depinning field in notch-patterned Ni80Fe20 (permalloy) nanowires depends strongly on the wire width and the notch depth. This result both provides valuable insight into the motion of magnetic-domain walls and opens a path to further technological developments in spintronics applications.

483

Stochastic Domain-Wall Depinning in Magnetic Nanowires  

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

Stochastic Domain-Wall Depinning in Magnetic Nanowires Print Stochastic Domain-Wall Depinning in Magnetic Nanowires Print Reliably controlling the motion of magnetic domain walls along magnetic nanowires is a key requirement for current technological development of novel classes of logic and storage devices, but understanding the nature of non-deterministic domain-wall motion remains a scientific challenge. A statistical analysis of high-resolution magnetic soft x-ray microscopy images by a Berkeley Lab-University of Hamburg group has now revealed that the stochastic behavior of the domain-wall depinning field in notch-patterned Ni80Fe20 (permalloy) nanowires depends strongly on the wire width and the notch depth. This result both provides valuable insight into the motion of magnetic-domain walls and opens a path to further technological developments in spintronics applications.

484

Webs of domain walls in supersymmetric gauge theories  

SciTech Connect (OSTI)

Webs of domain walls are constructed as 1/4 Bogomol'nyi-Prasad-Sommerfield (BPS) states in d=4, N=2 supersymmetric U(N{sub C}) gauge theories with N{sub F} hypermultiplets in the fundamental representation. Webs of walls can contain any numbers of external legs and loops like (p,q) string/5-brane webs. We find the moduli space M of a 1/4 BPS equation for wall webs to be the complex Grassmann manifold. When moduli spaces of 1/2 BPS states (parallel walls) and the vacua are removed from M, the noncompact moduli space of genuine 1/4 BPS wall webs is obtained. All the solutions are obtained explicitly and exactly in the strong gauge coupling limit. In the case of Abelian gauge theory, we work out the correspondence between configurations of wall web and the moduli space CP{sup N{}sub F}{sup -1}.

Eto, Minoru; Isozumi, Youichi; Nitta, Muneto; Ohashi, Keisuke; Sakai, Norisuke [Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551 (Japan)

2005-10-15T23:59:59.000Z

485

En-Vac Robotic Wall Scabbler. Innovative Technology Summary Report  

SciTech Connect (OSTI)

The Idaho National Engineering and Environmental Laboratory (INEEL)demonstrated an En-Vac Robotic Wall Scabbler from Japan to remove contaminated paint and concrete up to five times faster than workers using a hand-held scabbling/grinding tool. The Robotic Wall Scabbler uses abrasive steel grit to blast metal and concrete surfaces and it moves along the wall and adheres to the surface using vacuum suction. The Robotic Wall Scabbling unit includes the robot, grit recycling unit, debris filtration system, vacuum system, and remote control station. It scabbles concrete at depths up to 1/8-inch per pass. The demonstration was conducted on the walls of the Decontamination Shop of Test Area North which is contaminated with polychlorobiphenyls, lead, and radionuclides. Besides production rate, other benefits of the robotic wall scabbler include reduced radiation dose to workers and no airborne contamination.

None

2001-04-01T23:59:59.000Z

486

Stochastic Domain-Wall Depinning in Magnetic Nanowires  

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

Stochastic Domain-Wall Depinning in Magnetic Nanowires Print Stochastic Domain-Wall Depinning in Magnetic Nanowires Print Reliably controlling the motion of magnetic domain walls along magnetic nanowires is a key requirement for current technological development of novel classes of logic and storage devices, but understanding the nature of non-deterministic domain-wall motion remains a scientific challenge. A statistical analysis of high-resolution magnetic soft x-ray microscopy images by a Berkeley Lab-University of Hamburg group has now revealed that the stochastic behavior of the domain-wall depinning field in notch-patterned Ni80Fe20 (permalloy) nanowires depends strongly on the wire width and the notch depth. This result both provides valuable insight into the motion of magnetic-domain walls and opens a path to further technological developments in spintronics applications.

487

Stochastic Domain-Wall Depinning in Magnetic Nanowires  

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

Stochastic Domain-Wall Depinning in Magnetic Nanowires Print Stochastic Domain-Wall Depinning in Magnetic Nanowires Print Reliably controlling the motion of magnetic domain walls along magnetic nanowires is a key requirement for current technological development of novel classes of logic and storage devices, but understanding the nature of non-deterministic domain-wall motion remains a scientific challenge. A statistical analysis of high-resolution magnetic soft x-ray microscopy images by a Berkeley Lab-University of Hamburg group has now revealed that the stochastic behavior of the domain-wall depinning field in notch-patterned Ni80Fe20 (permalloy) nanowires depends strongly on the wire width and the notch depth. This result both provides valuable insight into the motion of magnetic-domain walls and opens a path to further technological developments in spintronics applications.

488

Enabling Tool for Innovative Glass Applications - Final Report  

SciTech Connect (OSTI)

The use of abrasive waterjet (AWJ) cutting systems in the industrial sector has been limited to applications that are difficult to machine using conventional methods. A major factor for this limited use is the high cost of the garnet abrasive currently used. Initial studies indicated that glass can be processed to produce particles with the desired characteristics at a fraction of the existing price of garnet. Inexpensive abrasive waterjet cutting systems would allow a wider array of glass products to be produced while eliminating many existing design limitations. Availability of low-cost abrasive waterjet cutting media would open new markets for glass applications by making glass a more versatile material. A fundamental goal of this project was to scale up and refine the circuit that was established in the initial phase of this project, which using waste glass as a feed stream, could economically produce glass particles displaying high angularity, sharp edges and a low aspect ratio which would prove suitable for use in abrasive waterjet (AWJ) cutting systems. Using commercial scale equipment, demonstration runs were conducted at various manufacturers facilities to further establish that waste glass is a viable source for the production of an inexpensive AWJ media for use in cutting glass and a variety of other materials. The glass abrasive produced was used to demonstrate that processed waste glass could serve as a less costly alternative to garnet in many AWJ cutting applications. Studies indicated that glass can be processed to produce particles with the desired characteristics at less than 1% of the existing price of garnet. The waste stream resulting from the use of the glass abrasive in an AWJ system was in turn used as a source for inexpensive fillers in various polymers. The reduced energy requirements needed to produce glass abrasives and lower cost associated with the use of waste glass over garnet, as well as the environmental benefits associated with the recycling of glass waste streams were the primary objectives of this project. The use of the glass abrasive produced in this study did not result in feed rates as high as was expected when used as the media in the cutting of plate glass products. Furthermore, the process and equipment refinements that have been implemented at the PPG and Donnelly facilities since this project was initiated have also served to reduce their energy requirements and in turn the cost associated with the production of sidelites and foiled prisms using conventional means. In addition, further improvements would have to be realized in the cutting of these harder materials before the use of an AWJ system could be viewed as an economically viable means of establishing the perimeter of either product. The possibility of tempering to increase the hardness of the glass media may be one means of achieving this goal.

James M. Gillis

2005-11-16T23:59:59.000Z

489

Molten Oxide Glass Materials for Thermal Energy Storage  

Science Journals Connector (OSTI)

Abstract Halotechnics, Inc. is developing an energy storage system utilizing a low melting point molten glass as the heat transfer and thermal storage material. This work is supported under a grant from the Department of Energy's Advanced Research Projects Agency-Energy (ARPA-E). Advanced oxide glasses promise a potential breakthrough as a low cost, earth abundant, and stable thermal storage material. The system and new glass material will enable grid scale electricity storage at a fraction of the cost of batteries by integrating the thermal storage with a large heat pump device. Halotechnics is combining its proven expertise in combinatorial chemistry with advanced techniques for handling molten glass to design and build a two-tank thermal energy storage system. This system, operating at a high temperature of 1200 °C and a low temperature of 400 °C, will demonstrate sensible heat thermal energy storage using a uniquely formulated oxide glass. Our molten glass thermal storage material has the potential to significantly reduce thermal storage costs once developed and deployed at commercial scale. Thermal storage at the target temperature can be integrated with existing high temperature gas turbines that significantly increase efficiencies over today's steam turbine technology. This paper describes the development and selection of Halotechnics’ molten glass heat transfer fluids with some additional systems considerations.

B. Elkin; L. Finkelstein; T. Dyer; J. Raade

2014-01-01T23:59:59.000Z

490

Elastic interpretation of the glass transition in aluminosilicate liquids  

Science Journals Connector (OSTI)

One of the remaining puzzles of the glass transition is the origin of a glass-forming liquid's “fragility,” which quantifies the departure of its relaxation time from Arrhenius-activated kinetics. According to the shoving model proposed by Dyre, fragility is controlled by the instantaneous shear modulus of the liquid, since any flow event requires a local volume increase, and the related activation energy is equal to the work done in shoving aside the surrounding atoms. Here, we present an in situ high-temperature Brillouin spectroscopy test of the shoving model near the glass transition of eight aluminosilicate glass-forming systems. We find that the measured viscosity data agree qualitatively with the measured temperature dependence of shear moduli, as predicted by the shoving model. However, the model systematically underpredicts the values of fragility for our aluminosilicate liquids. This suggests that the dynamics of the glass transition are governed by additional factors beyond the evolution of the shear modulus, such as configurational entropy. We have also compared the glass transition temperature (Tg,vis) obtained from viscosity (temperature at 1012 Pa s) with the onset temperatures of the decrease in elastic moduli (Tg,elas) and increase in the thermal expansion coefficient (Tg,CTE) during heating. While we find an approximate one-to-one correlation between Tg,vis and Tg,CTE, it is clear that the elastic moduli probe a different frequency response of the glass structure, since Tg,elas is systematically lower than Tg,vis.

Morten M. Smedskjaer; Liping Huang; Garth Scannell; John C. Mauro

2012-04-27T23:59:59.000Z

491

Waste glass corrosion modeling: Comparison with experimental results  

SciTech Connect (OSTI)

A chemical model of glass corrosion will be used to predict the rates of release of radionuclides from borosilicate glass waste forms in high-level waste repositories. The model will be used both to calculate the rate of degradation of the glass, and also to predict the effects of chemical interactions between the glass and repository materials such as spent fuel, canister and container materials, backfill, cements, grouts, and others. Coupling between the degradation processes affecting all these materials is expected. Models for borosilicate glass dissolution must account for the processes of (1) kinetically-controlled network dissolution, (2) precipitation of secondary phases, (3) ion exchange, (4) rate-limiting diffusive transport of silica through a hydrous surface reaction layer, and (5) specific glass surface interactions with dissolved cations and anions. Current long-term corrosion models for borosilicate glass employ a rate equation consistent with transition state theory embodied in a geochemical reaction-path modeling program that calculates aqueous phase speciation and mineral precipitation/dissolution. These models are currently under development. Future experimental and modeling work to better quantify the rate-controlling processes and validate these models are necessary before the models can be used in repository performance assessment calculations.

Bourcier, W.L.

1993-11-01T23:59:59.000Z

492

Low melting high lithia glass compositions and methods  

DOE Patents [OSTI]

The invention relates to methods of vitrifying waste and for lowering the melting point of glass forming systems by including lithia formers in the glass forming composition in significant amounts, typically from about 0.16 wt % to about 11 wt %, based on the total glass forming oxides. The lithia is typically included as a replacement for alkali oxide glass formers that would normally be present in a particular glass forming system. Replacement can occur on a mole percent or weight percent basis, and typically results in a composition wherein lithia forms about 10 wt % to about 100 wt % of the alkali oxide glass formers present in the composition. The present invention also relates to the high lithia glass compositions formed by these methods. The invention is useful for stabilization of numerous types of waste materials, including aqueous waste streams, sludge solids, mixtures of aqueous supernate and sludge solids, combinations of spent filter aids from waste water treatment and waste sludges, supernate alone, incinerator ash, incinerator offgas blowdown, or combinations thereof, geological mine tailings and sludges, asbestos, inorganic filter media, cement waste forms in need of remediation, spent or partially spent ion exchange resins or zeolites, contaminated soils, lead paint, etc. The decrease in melting point achieved by the present invention desirably prevents volatilization of hazardous or radioactive species during vitrification.

Jantzen, Carol M. (Aiken, SC); Pickett, John B. (Aiken, SC); Cicero-Herman, Connie A. (Aiken, SC); Marra, James C. (Aiken, SC)

2000-01-01T23:59:59.000Z

493

D-brane Configurations for Domain Walls and Their Webs  

SciTech Connect (OSTI)

Supersymmetric U(NC) gauge theory with NF massive hypermultiplets in the fundamental representation admits various BPS solitons like domain walls and their webs. In the first part we show as a review of the previous paper that domain walls are realized as kinky fractional D3-branes interpolating between separated D7-branes. In the second part we discuss brane configurations for domain wall webs. This is a contribution to the conference based on the talk given by MN.

Eto, Minoru; Isozumi, Youichi; Nitta, Muneto; Ohashi, Keisuke; Sakai, Norisuke [Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551 (Japan); Ohta, Kazutoshi [Theoretical Physics Laboratory, Institute of Physical and Chemical Research (RIKEN), 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)

2005-12-02T23:59:59.000Z

494

Self-assembling functionalized single-walled carbon nanotubes  

E-Print Network [OSTI]

scale synthesis of carbon nanotubes." Nature, Vol.358, 220-Ropes of Metallic Carbon Nanotubes." Science, Vol.273(5274),of single- wall carbon nanotubes. Process, product, and

Gao, Yan

2011-01-01T23:59:59.000Z

495

Stud Walls With Continuous Exterior Insulation for Factory Built...  

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

density, fairly simple window and door framing details can be used. Easily installed plastic sill flashing is an added benefit. STUD WALLS WITH FOAM- CONTROL NAILBRACE AFM's...

496

Concept for Reducing Hall Thruster Chamber Wall Erosion with...  

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

Concept for Reducing Hall Thruster Chamber Wall Erosion with Lithium Vapor Shielding. Hall thrusters have been established as a compact and reliable means for satellite...

497

Security Walls, LLC, January 14-18, 2013  

Broader source: Energy.gov (indexed) [DOE]

Assistance Washington, DC 20585 Security Walls, LLC DOE-VPP Onsite Review January 2013 Foreword The Department of Energy (DOE) recognizes that true excellence can be...

498

Imaging cell wall architecture in single Zinnia elegans tracheary elements  

E-Print Network [OSTI]

indicated a loss of lignin and a modest loss of otherTEs accumulate lignin in their secondary walls and undergohemicelluloses, and also lignin, a complex aromatic polymer

Lacayo, Catherine

2012-01-01T23:59:59.000Z

499

Electromagnetic Interference (EMI) Shielding of Single-Walled Carbon  

E-Print Network [OSTI]

Electromagnetic Interference (EMI) Shielding of Single-Walled Carbon Nanotube Epoxy Composites Ning (SWNT)-polymer composites have been fabricated to evaluate the electromagnetic interference (EMI

Gao, Hongjun

500

Fracture of welded aluminum thin-walled structures  

E-Print Network [OSTI]

A comprehensive methodology was developed in the thesis for damage prediction of welded aluminum thin-walled structures, which includes material modeling, calibration, numerical simulation and experimental verification. ...

Zheng, Li, Ph. D. Massachusetts Institute of Technology

2006-01-01T23:59:59.000Z