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Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

On the use of doped polyethylene as an insulating material for HVDC cables  

SciTech Connect

The merits of HVDC cables with polymeric insulation are well recognized. However, the development of such cables is still hampered due to the problems resulting from the complicated dependence of the electrical conductivity of the polymer on the temperature and the dc electric field and the effects of space charge accumulation in this material. Different methods have been suggested to solve these problems yet none of these methods seem to give a conclusive solution. The present report provides, firstly a critical review of the previous works reported in the literature concerning the development of HVDC cables with polymeric insulation. Different aspects of those works are examined and discussed. Secondly, an account is given on an investigation using low density polyethylene (LDPE) doped with an inorganic additive as a candidate insulating material for HVDC cables. Preliminary results from measurements of dc breakdown strength and insulation resistivity of both the undoped and the doped materials are presented. It is shown that the incorporation of an inorganic additive into LDPE has improved the performance of the doped material under polarity reversal dc conditions at room temperature. Moreover, the dependency of the insulation resistivity on temperature for the doped material appears to be beneficially modified.

Khalil, M.S. [Sultan Qaboos Univ., Muscat (Oman)

1996-12-31T23:59:59.000Z

2

Production and characterization of a composite insulation material from waste polyethylene teraphtalates  

SciTech Connect

The pollution of polyethylene teraphtalate (PET) is in huge amounts due to the most widely usage as a packaging material in several industries. Regional pumice has several desirable characteristics such as porous structure, low-cost and light-weight. Considering the requirements approved by the Ministry of Public Works on isolation, composite insulation material consisting of PET and pumice was studied. Sheets of composites differing both in particle size of pumice and composition of polymer were produced by hot-molding technique. Characterization of new composite material was achieved by measuring its weight, density, flammability, endurance against both to common acids and bases, and to a force applied, heat insulation and water adsorption capacity. The results of the study showed that produced composite material is an alternative building material due to its desirable characteristics; low weight, capability of low heat conduction.

Kurtulmus, Erhan; Karaboyac?, Mustafa; Yigitarslan, Sibel [Chemical Engineering Department of Suleyman Demirel University, 32200, Isparta (Turkey)

2013-12-16T23:59:59.000Z

3

Dynamics of Membrane Adhesion: The Role of Polyethylene Glycol Spacers, Ligand-Receptor Bond Strength, and Rupture Pathway  

E-Print Network (OSTI)

Dynamics of Membrane Adhesion: The Role of Polyethylene Glycol Spacers, Ligand-Receptor Bond-key" binding. Poly(ethylene glycol) (PEG) has been used extensively as a synthetic flexible spacer that mimics poly(ethylene glycol) (PEG) tethers.14-17 The mechanisms of detachment of these adherent surfaces

4

Effect of silica on the properties of cellulose acetate/polyethylene glycol membranes for reverse osmosis  

Science Journals Connector (OSTI)

Abstract In this work, a series of cellulose acetate/polyethylene glycol-600 membranes, with varying ratios were prepared by 2-stage phase inversion protocol. The permeation properties were studied by subjecting membranes in indigenously fabricated reverse osmosis plant. After optimization of different CA/PEG ratios, the membrane with highest salt rejection capacity was selected and modified with varying amount of silica. The Modified membranes were characterized for their permeation properties, hydrophilicity, compositional analysis, thermal stability, mechanical strength and morphological studies. Silica significantly influenced the permeation performance of composite membrane. The flux enhanced from 0.35 to 2.46 L/h m2 along with an 11.41% relative increase in salt rejection. The hydrophilicity was significantly enhanced by the addition of silica. In FTIR spectra, the broadening of the peak around 3500 cm? 1 and emergence of peak at 950 cm? 1 specified the incorporation of silica particles. The thermal analysis indicated the relative increase in degradation temperature (Tmax) and glass transition temperature (Tg) for CPS-5 membrane. The mechanical stability of the modified membranes, increased initially, but declined with further addition of silica. The results indicated that the incorporation of SiO2 content in the casting solution improved the fouling resistance of the membranes.

Adnan Ahmad; Sidra Waheed; Shahzad Maqsood Khan; Sabad e-Gul; Muhammad Shafiq; Muhammad Farooq; Khairuddin Sanaullah; Tahir Jamil

2015-01-01T23:59:59.000Z

5

insulation  

Science Journals Connector (OSTI)

The material used to insulate an electrical conductor, i.e., to enable a point to maintain an insulated state. Note: Insulations consist of dielectric materials. Airspace may serve...See also ...

2001-01-01T23:59:59.000Z

6

Types of Insulation | Department of Energy  

Energy Savers (EERE)

-- into insulation systems that can include a variety of backings, such as kraft paper, plastic film, polyethylene bubbles, or cardboard, as well as thermal insulation materials....

7

Polyethylene glycol (PEG) is a hydrophilic polymer that has been used for many years to fuse the membranes of various  

E-Print Network (OSTI)

Polyethylene glycol (PEG) is a hydrophilic polymer that has been used for many years to fuse spinal cord injury. This involves a brief application of polyethylene glycol (PEG) to the site of injury

Duerstock, Bradley

8

Modeling and simulation of power cable insulation  

Science Journals Connector (OSTI)

The use of power cables for transmission and distribution of electrical power have increased since the advent of suitable, reliable and economical polymeric insulating material; such as cross-linked polyethylene (XLPE). Power cables plays crucial role ... Keywords: cross-linked polyethylene (XLPE), imperfect insulation, local defects, lossy insulation, partial discharge (PD)

K. D. Patil; A. A. Bhole; W. Z. Gandhare

2010-02-01T23:59:59.000Z

9

Insulation Workers  

Science Journals Connector (OSTI)

Insulation workers apply insulation materials on objects and buildings for thermal insulation and/or waterproofing.

R. Riala

2012-01-01T23:59:59.000Z

10

POLYETHYLENE ENCAPSULATION.  

SciTech Connect

Polyethylene microencapsulation physically homogenizes and incorporates mixed waste particles within a molten polymer matrix, forming a solidified final waste form upon cooling. Each individual particle of waste is embedded within the polymer block and is surrounded by a durable, leach-resistant coating. The process has been successfully applied for the treatment of a broad range of mixed wastes, including evaporator concentrate salts, soil, sludges, incinerator ash, off-gas blowdown solutions, decontamination solutions, molten salt oxidation process residuals, ion exchange resins, granular activated carbon, shredded dry active waste, spill clean-up residuals, depleted uranium powders, and failed grout waste forms. For waste streams containing high concentrations of soluble toxic metal contaminants, additives can be used to further reduce leachability, thus improving waste loadings while meeting or exceeding regulatory disposal criteria. In this configuration, contaminants are both chemically stabilized and physically solidified, making the process a true stabilization/solidification (S/S) technology. Unlike conventional hydraulic cement grouts or thermosetting polymers, thermoplastic polymers such as polyethylene require no chemical. reaction for solidification. Thus, a stable, solid, final waste form product is assured on cooling. Variations in waste chemistry over time do not affect processing parameters and do not require reformulation of the recipe. Incorporation of waste particles within the polymer matrix serves as an aggregate and improves the mechanical strength and integrity of the waste form. The compressive strength of polyethylene microencapsulated waste forms varies based on the type and quantity of waste encapsulated, but is typically between 7 and 17.2 MPa (1000 and 2500 psi), well above the minimum strength of 0.4 MPa (160 psi) recommended by the U.S. Nuclear Regulatory Commission (NRC) for low-level radioactive waste forms in support of 10 CFR 61 (NRC, 1991; 1983) Because polyethylene is a relatively new material, it is difficult to predict its long-term durability. However, prior to scale-up of the microencapsulation process, a study was conducted to evaluate potential degradation mechanisms. The study examined potential effects on mechanical integrity from exposure to chemicals and solvents, thermal cycling, saturated environments, microbial attack, and high gamma-radiation fields (Kalb et al., 1991). At ambient temperatures, polyethylene is relatively inert to most chemicals, including organic solvents, acids, and alkaline solutions. Exposure to changes in temperature or saturated soil conditions have been shown to degrade the mechanical integrity of some waste forms, but had little or no measurable impact on polyethylene waste forms. Low-density polyethylene is not susceptible to growth of microbial organisms, a fact that is evidenced by the lack of plastics decomposition in municipal waste landfills. When exposed to gamma-radiation at total doses of up to lo8 rad, additional cross-linking of the polymer occurs, resulting in increased strength and lower leachability.

KALB, P.

2001-08-22T23:59:59.000Z

11

Insulation Workers  

Science Journals Connector (OSTI)

Insulation workers install or spray insulation on pipes, boilers, walls, roofs, floors, etc. to improve thermal insulation or waterproofing. Most thermal insulation is now composed of man-made mineral ... rock wo...

R. Riala

2000-01-01T23:59:59.000Z

12

Fully synthetic taped insulation cables  

DOE Patents (OSTI)

A high voltage oil-impregnated electrical cable with fully polymer taped insulation operable to 765 kV. Biaxially oriented, specially processed, polyethylene, polybutene or polypropylene tape with an embossed pattern is wound in multiple layers over a conductive core with a permeable screen around the insulation. Conventional oil which closely matches the dielectric constant of the tape is used, and the cable can be impregnated after field installation because of its excellent impregnation characteristics.

Forsyth, Eric B. (Brookhaven, NY); Muller, Albert C. (Center Moriches, NY)

1984-01-01T23:59:59.000Z

13

Insulating and sheathing materials of electric and optical cables: common test methods part 4-1: methods specific to polyethylene and polypropylene compounds – resistance to environmental stress cracking – measurement of the melt flow index – carbon black and/or mineral filler content measurement in polyethylene by direct combustion – measurement of carbon black content by thermogravimetric analysis (TGA) – assessment of carbon black dispersion in polyethylene using a microscope  

E-Print Network (OSTI)

Specifies the test methods to be used for testing polymeric insulating and sheathing materials of electric cables for power distribution and telecommunications including cables used on ships. Gives the methods for measurements of the resistance to environmental stress cracking, for wrapping test after thermal ageing in air, for measurement of melt flow index and for measurement of carbon black and/or mineral filler content, which apply to PE and PP coumpounds, including cellular compounds and foam skin for insulation.

International Electrotechnical Commission. Geneva

2004-01-01T23:59:59.000Z

14

Insulation Resistance  

Science Journals Connector (OSTI)

n...(1) The electrical resistance between two conductors or systems of conductors separated only by an insulating material. The resistance of a particular insulation may be measured by dividing the v...

Jan W. Gooch

2011-01-01T23:59:59.000Z

15

Insulation resistance  

Science Journals Connector (OSTI)

n....(1) The electrical resistance between two conductors or systems of conductors separated only by an insulating material. The resistance of a particular insulation may be measured by dividing the ...

2007-01-01T23:59:59.000Z

16

Electrical insulation  

Science Journals Connector (OSTI)

n....Material with very low conductivity, which surrounds active electrical devices. Common electrical insulation chemicals are fluorine-containing polymers.

2007-01-01T23:59:59.000Z

17

Electrical Insulation  

Science Journals Connector (OSTI)

n...Material with very low conductivity which surrounds active electrical devices. Common electrical insulation chemicals are fluorine-containing polymers (Dissado LA...

Jan W. Gooch

2011-01-01T23:59:59.000Z

18

Magnetic insulation  

Science Journals Connector (OSTI)

... by Winterberg1, led me to look into the background of the idea of 'magnetic insulation'. The purpose of this letter is to point out that the scheme described in ... were presented earlier in a longer article2. In that article he suggested that 'magnetic insulation' might make possible a transformer for 109 V. A year later the same objections ...

JOHN P. BLEWETT

1974-06-28T23:59:59.000Z

19

Crustation insulation  

Science Journals Connector (OSTI)

... nervous systems by wrapping it in multilayered sheaths of a fatty material called myelin. This insulation allows electrical nerve impulses to be conveyed over long distances much more rapidly. Considering ...

Eleanor Lawrence

1999-04-15T23:59:59.000Z

20

insulation blocking  

Science Journals Connector (OSTI)

In a cable, such as a coaxial cable, a paired cable, a twisted pair, or a fiber optic cable, the ability of the outer covering, such as a jacket, sheath, or insulation, to withstand elevated temperatures without ...

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Fully synthetic taped insulation cables  

DOE Patents (OSTI)

The present invention is a cable which, although constructed from inexpensive polyolefin tapes and using typical impregnating oils, furnishes high voltage capability up to 765 kV, and has such excellent dielectric characteristics and heat transfer properties that it is capable of operation at capacities equal to or higher than presently available cables at a given voltage. This is accomplished by using polyethylene, polybutene or polypropylene insulating tape which has been specially processed to attain properties which are not generally found in these materials, but are required for their use in impregnated electrical cables. Chief among these properties is compatibility with impregnating oil.

Forsyth, E.B.; Muller, A.C.

1983-07-15T23:59:59.000Z

22

Polyethylene Encapsulated Depleted Uranium  

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

Poly DU Poly DU Polyethylene Encapsulated Depleted Uranium Technology Description: Brookhaven National Laboratory (BNL) has completed preliminary work to investigate the feasibility of encapsulating DU in low density polyethylene to form a stable, dense product. DU loadings as high as 90 wt% were achieved. A maximum product density of 4.2 g/cm3 was achieved using UO3, but increased product density using UO2 is estimated at 6.1 g/cm3. Additional product density improvements up to about 7.2 g/cm3 were projected using DU aggregate in a hybrid technique known as micro/macroencapsulation.[1] A U.S. patent for this process has been received.[2] Figure 1 Figure 1: DU Encapsulated in polyethylene samples produced at BNL containing 80 wt % depleted UO3 A recent DU market study by Kapline Enterprises, Inc. for DOE thoroughly identified and rated potential applications and markets for DU metal and oxide materials.[3] Because of its workability and high DU loading capability, the polyethylene encapsulated DU could readily be fabricated as counterweights/ballast (for use in airplanes, helicopters, ships and missiles), flywheels, armor, and projectiles. Also, polyethylene encapsulated DU is an effective shielding material for both gamma and neutron radiation, with potential application for shielding high activity waste (e.g., ion exchange resins, glass gems), spent fuel dry storage casks, and high energy experimental facilities (e.g., accelerator targets) to reduce radiation exposures to workers and the public.

23

#AskEnergySaver: Insulation | Department of Energy  

Office of Environmental Management (EM)

problems or not, it is a good idea to cover any exposed dirt with a membrane (6-mil polyethylene sheeting will do) before you do anything else. This will make it easier and nicer...

24

Measure Guideline: Hybrid Foundation Insulation Retrofits  

SciTech Connect

This measure guideline provides recommendations for designs and variations for retrofit hybrid assemblies in improving interior foundation insulation and water management of basements. Variations include closed cell spray foam (ccSPF) with membrane waterproofing or air gap membrane drainage layers, rigid board foam insulation at flat walls (cast concrete or CMU block), a 'partial drainage' detail making use of the bulk water drainage that occurs through the field of a rubble stone wall, and non-drained spray foam assemblies (including slab insulation).

Ueno, K.; Lstiburek, J.

2012-05-01T23:59:59.000Z

25

Capillary Break Beneath a Slab: Polyethylene Sheeting over Aggregate; Southwestern Pennsylvania (Fact Sheet)  

SciTech Connect

This document provides content for three areas of the Building America Solution Center. First, "Insulating Closed Crawlspace Walls and Band Joist Area" describes how to install rigid foam insulation on the interior perimeter walls and band joist area in closed crawlspace foundations of homes. Second, "Removing Construction Debris from Flexible Ducts" describes how to clean flexible ducts after construction or major renovation of a home to remove debris resulting from building materials, particularly airborne dust and particulates. Third, images, CAD drawings, and a case study illustrate right and wrong ways to apply polyethylene sheeting over aggregate. Similarly, a CAD drawing is included that illustrates the use of a concrete slab over polyethylene.

Not Available

2014-07-01T23:59:59.000Z

26

Insulation | Department of Energy  

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

Insulation Insulation Insulation Where to Insulate Learn where to insulate in a home to save money and improve comfort. Read more Insulation Get the facts about how insulation works. Read more Estimate the Payback Period for Insulation Adding insulation to your home will likely have an attractive payback. Read more You can reduce your home's heating and cooling costs through proper insulation and air sealing techniques. These techniques will also make your home more comfortable. Any air sealing efforts will complement your insulation efforts, and vice versa. Proper moisture control and ventilation strategies will improve the effectiveness of air sealing and insulation, and vice versa. Featured Insulation for New Home Construction Planning carefully for insulation results in reduced utility bills and superior comfort during the life of the home. In this house, raised heel trusses accommodate R-60 insulation. | Credit: Paul Norton, NREL.

27

Studies on electrical cable insulation for nuclear applications  

SciTech Connect

Two new polyethylene cable insulations have been formulated for nuclear applications, and have been tested under gamma radiation. Both insulations are based on low density polyethylene, one with PbO and the other with Sb{sub 2}O{sub 3} as additives. The test results show that the concept of using inorganic anti-oxidants to retard radiation initiated oxidation is viable, and PbO is more effective than Sb{sub 2}O{sub 3} in slowing down radiation initiated oxidation (RIO). Also, radiation degradation data for polyethylene and polyvinyl chloride at 60{degrees}C have been generated, which will be used to understand radiation initiated oxidation process on these materials combined with the 25{degrees}C data that will be generated in the future. 14 refs., 41 figs., 3 tabs.

Lee, B.S.; Soo, P.; MacKenzie, D.R. [Brookhaven National Lab., Upton, NY (USA); Blackburn, P. [Beloit Junior-Senior High School, KS (USA)

1989-12-01T23:59:59.000Z

28

Foam insulation for a liquid oxygen densifier  

Science Journals Connector (OSTI)

Analyses indicated that it would not be cost effective to vacuum insulate a 7 foot diameter by 30 foot long liquid nitrogen vessel for a launch facility liquid oxygen densifier. Foam insulation appeared to be the logical choice for this infrequently used ground support equipment but the history of foam problems due to cracking, adhesive failure and internal shearing weighed against the use of commercial spray-on material. These problems were solved with a system consisting of alternate sealing and flexible foam layers: (1) an inner membrane sealed to itself but not attached to the cold shell or pipe; (2) a flexible foam insulation layer; (3) a vapor-tight sealing membrane; (4) a second flexible foam insulation layer and (5) an outer aluminized sealing membrane. The second and subsequent layers are sealed to each underlying layer by flexible foam contact adhesive. The inner sealing membrane is particularly vital in that it allows the first foam layer to expand and contract as the tank temperature changes and it also protects the tank from chloride corrosion from the foam. This paper describes preliminary testing to prove out the system and the steps taken to install flexible foam insulation on the oxygen densifier vessel.

G.E. McIntosh; R. Stuckenschmidt

2012-01-01T23:59:59.000Z

29

Insulation Monitors Settings Selection  

Science Journals Connector (OSTI)

In the chapter general requirements set to insulation monitors selection in AC and DC networks ... given. Examples of regulations requirements for circuits insulation equivalent resistance are presented. Traditio...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

30

Insulation Resistance Measurement Methods  

Science Journals Connector (OSTI)

A traditional method of insulation resistance measurement in live DC networks is ... of an ammeter is described. Formulas for insulation equivalent resistance calculation are derived with help...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

31

Insulation Fact Sheet  

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

DOE/CE-0180 DOE/CE-0180 2008 Department of Energy Assistant Secretary Energy Efficiency and Renewable Energy Contents: Introduction Why Insulate Your House? How Insulation Works Which Kind of Insulation is Best? What Is an R-Value? Reading the Label Insulation Product Types Insulating a New House Where and How Much Air Sealing Moisture Control and Ventilation Installation Issues Precautions Attics Walls Design Options Crawlspaces and Slabs Advanced Wall Framing Metal Framing Insulating Concrete Forms Massive Walls Structural Insulated Panels External Insulation Finish System Attic Ventilation or a Cathedralized Attic Adding Insulation to an Existing House Where and How Much How Much Insulation Do I Already Have? Air Sealing Moisture Control and Ventilation Insulation Installation, the Retrofit Challenge

32

Topological Twistons in Crystalline Polyethylene  

E-Print Network (OSTI)

We introduce an alternate model to describe twistons in crystalline polyethylene. The model couples torsional and longitudinal degrees of freedom and appears as an extension of a model that describes only the torsional motion. We find exact solutions that describe stable topological twistons, in good agreement with the torsional and longitudinal interactions in polyethylene.

D. Bazeia; E. Ventura

1999-02-09T23:59:59.000Z

33

Continuous Processing of High Thermal Conductivity Polyethylene...  

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

Processing of High Thermal Conductivity Polyethylene Fibers and Sheets Continuous Processing of High Thermal Conductivity Polyethylene Fibers and Sheets Massachusetts Institute of...

34

Multiple density layered insulator  

DOE Patents (OSTI)

A multiple density layered insulator for use with a laser is disclosed wh provides at least two different insulation materials for a laser discharge tube, where the two insulation materials have different thermoconductivities. The multiple layer insulation materials provide for improved thermoconductivity capability for improved laser operation.

Alger, Terry W. (Tracy, CA)

1994-01-01T23:59:59.000Z

35

Calcium silicate insulation structure  

DOE Patents (OSTI)

An insulative structure including a powder-filled evacuated casing utilizes a quantity of finely divided synthetic calcium silicate having a relatively high surface area. The resultant structure-provides superior thermal insulating characteristics over a broad temperature range and is particularly well-suited as a panel for a refrigerator or freezer or the insulative barrier for a cooler or a insulated bottle.

Kollie, Thomas G. (Oak Ridge, TN); Lauf, Robert J. (Oak Ridge, TN)

1995-01-01T23:59:59.000Z

36

Phase Structure and Properties of Poly(ethylene terephthalate)/High-Density Polyethylene Based on  

E-Print Network (OSTI)

Phase Structure and Properties of Poly(ethylene terephthalate)/High-Density Polyethylene Based.interscience.wiley.com). ABSTRACT: Blends based on recycled high density polyethylene (R-HDPE) and recycled poly(ethylene tereph- thalate) (R-PET) were made through reactive extrusion. The effects of maleated polyethylene (PE

37

Insulation | Department of Energy  

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

Insulation Insulation Insulation May 30, 2012 - 9:14am Addthis Spray foam insulation fills the nooks and crannies in the walls of this energy-efficient Florida home. | Photo courtesy of FSEC/IBACOS. Spray foam insulation fills the nooks and crannies in the walls of this energy-efficient Florida home. | Photo courtesy of FSEC/IBACOS. Foam core structural insulated panels are built in a factory, shipped to the jobsite, and assembled. | Photo courtesy of Michael Baechler. Foam core structural insulated panels are built in a factory, shipped to the jobsite, and assembled. | Photo courtesy of Michael Baechler. Spray foam insulation fills the nooks and crannies in the walls of this energy-efficient Florida home. | Photo courtesy of FSEC/IBACOS. Foam core structural insulated panels are built in a factory, shipped to the jobsite, and assembled. | Photo courtesy of Michael Baechler.

38

Insulation Monitoring Systems  

Science Journals Connector (OSTI)

In this chapter there is presented general information on insulation deterioration signalization systems for AC IT networks. Few systems of continuous insulation supervision are described. The old concepts includ...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

39

Degradable Polyethylene: Fantasy or Reality  

Science Journals Connector (OSTI)

Degradable polyethylene, which would enter the eco-cycle harmlessly through biodegradation would be a desirable solution to this problem. ... This article also outlines important questions, particularly in terms of time scale of complete degradation, environmental fate of the polymer residues, and possible accumulation of toxins, the answers to which need to be established prior to accepting these polymers as environmentally benign alternatives to their nondegradable equivalents. ... It appears from the existing literature that our search for biodegradable polyethylene has not yet been realized. ...

Prasun K. Roy; Minna Hakkarainen; Indra K. Varma; Ann-Christine Albertsson

2011-04-15T23:59:59.000Z

40

Photon tunnelling microscopy of polyethylene single crystals  

E-Print Network (OSTI)

Photon tunnelling microscopy of polyethylene single crystals Mohan Srinivasarao* and Richard S:photon tunnellingmicroscopy;single crystals; polyethylene) INTRODUCTION The study of morphology of polymers is an area

Srinivasarao, Mohan

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Nanoscale Calorimetry of Isolated Polyethylene Single Crystals  

E-Print Network (OSTI)

Nanoscale Calorimetry of Isolated Polyethylene Single Crystals A. T. KWAN, M. YU. EFREMOV, E. A-film differential scanning calorimetry to investigate the melt- ing of isolated polyethylene single crystals of lamellar single crystals of polyethylene (PE). We obtain thickness, diffraction, and calorimetry data

Allen, Leslie H.

42

Topological insulators/Isolants topologiques An introduction to topological insulators  

E-Print Network (OSTI)

Topological insulators/Isolants topologiques An introduction to topological insulators Introduction in the first Brillouin Zone, and their associated energies. In an insulator, an energy gap around the chemical topology, the insulator is called a topological insulator. We introduce this notion of topological order

Paris-Sud XI, Université de

43

A Simple Holographic Insulator  

E-Print Network (OSTI)

We present a simple holographic model of an insulator. Unlike most previous holographic insulators, the zero temperature infrared geometry is completely nonsingular. Both the low temperature DC conductivity and the optical conductivity at zero temperature satisfy power laws with the same exponent, given by the scaling dimension of an operator in the IR. Changing a parameter in the model converts it from an insulator to a conductor with a standard Drude peak.

Mefford, Eric

2014-01-01T23:59:59.000Z

44

A Simple Holographic Insulator  

E-Print Network (OSTI)

We present a simple holographic model of an insulator. Unlike most previous holographic insulators, the zero temperature infrared geometry is completely nonsingular. Both the low temperature DC conductivity and the optical conductivity at zero temperature satisfy power laws with the same exponent, given by the scaling dimension of an operator in the IR. Changing a parameter in the model converts it from an insulator to a conductor with a standard Drude peak.

Eric Mefford; Gary T. Horowitz

2014-06-16T23:59:59.000Z

45

Plastics and Insulation  

Science Journals Connector (OSTI)

... the Institution of Electrical Engineers on March 24 to discuss a paper on “Plastics and Insulation” by L. Hartshorn, N. J. L. Megson and E. Rushton. It ...

1938-04-02T23:59:59.000Z

46

Gas insulated transmission line with insulators having field controlling recesses  

DOE Patents (OSTI)

A gas insulated transmission line having a novel insulator for supporting an inner conductor concentrically within an outer sheath. The insulator has a recess contiguous with the periphery of one of the outer and inner conductors. The recess is disposed to a depth equal to an optimum gap for the dielectric insulating fluid used for the high voltage insulation or alternately disposed to a large depth so as to reduce the field at the critical conductor/insulator interface.

Cookson, Alan H. (Pittsburgh, PA); Pederson, Bjorn O. (Chelmsford, MA)

1984-01-01T23:59:59.000Z

47

Tips: Insulation | Department of Energy  

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

Insulation Insulation Tips: Insulation May 2, 2012 - 6:03pm Addthis Where to Insulate. Adding insulation in the areas shown here may be the best way to improve your home's energy efficiency. Insulate either the attic floor or under the roof. Check with a contractor about crawl space or basement insulation. Where to Insulate. Adding insulation in the areas shown here may be the best way to improve your home's energy efficiency. Insulate either the attic floor or under the roof. Check with a contractor about crawl space or basement insulation. Insulation is made from a variety of materials, and it usually comes in four types: rolls and batts, loose-fill, rigid foam, and foam-in-place. Rolls and Batts Rolls and batts -- or blankets -- are flexible products made from mineral

48

Heat transfer in microsphere insulation  

Science Journals Connector (OSTI)

The results of an investigation of heat transfer in a new type of insulation (microsphere insulation) are presented. The effects of the ... gas pressure on the thermal conductivity of the insulation were investig...

R. Wawryk; J. Rafa?owicz

49

Behaviour of Insulation  

Science Journals Connector (OSTI)

... to say in effect, even if I do inadvertently misquote. "The trouble with our insulation is that it is too thick". The lessons at any rate are clear: ... The book Dielectric Relaxation has certainly contributed greatly to our understanding of the behaviour of insulation for a specialist few.

COLIN ADAMSON

1968-12-07T23:59:59.000Z

50

Magnetic insulation (reply)  

Science Journals Connector (OSTI)

... DR WINTERBERG REPLIES: Contrary to Blewett's belief, magnetic insulation has not only been experimentally confirmed2 since I proposed it several years ago1, but ... generators (for example, the MJ Aurora machine). The magnetic field needed for the insulation effect in this case is generated by the strong azimuthal self-induced field of the ...

F. WINTERBERG

1974-06-28T23:59:59.000Z

51

Thermal Insulation of Houses  

Science Journals Connector (OSTI)

... THE Thermal Insulation (Dwellings) Bill which Mr. G. Nabarro introduced into the House of Commons on ... , sponsored by members of both major political parties, extends the principle of the Thermal Insulation (Industrial Buildings) Act of July 1957 to all new dwelling houses built in the ...

1958-02-22T23:59:59.000Z

52

Insulation of Electrical Equipment  

Science Journals Connector (OSTI)

... A VACATION 'school' on the insulation of electrical equipment was held in the Electrical Engineering Department of the Imperial College of ... the universities. The purpose of the course was to consider the factors which are limiting insulation design in the main classes of electrical equipment, and the general principles which should ...

1952-12-13T23:59:59.000Z

53

INSULATION OF HEATING SYSTEMS  

Science Journals Connector (OSTI)

... C. PALLOT gave a Cantor Lecture to the Royal Society of Arts on “Thermal Insulation at Medium Temperature” on November 23 ; the lecture, which included many topics of ... many topics of current interest, has now been published1. In a bulletin on heat insulation issued by the Ministry of Fuel and Power, it was pointed out that "In ...

1943-05-22T23:59:59.000Z

54

Topological insulators and superconductors  

Science Journals Connector (OSTI)

Topological insulators are new states of quantum matter which cannot be adiabatically connected to conventional insulators and semiconductors. They are characterized by a full insulating gap in the bulk and gapless edge or surface states which are protected by time-reversal symmetry. These topological materials have been theoretically predicted and experimentally observed in a variety of systems, including HgTe quantum wells, BiSb alloys, and Bi2Te3 and Bi2Se3 crystals. Theoretical models, materials properties, and experimental results on two-dimensional and three-dimensional topological insulators are reviewed, and both the topological band theory and the topological field theory are discussed. Topological superconductors have a full pairing gap in the bulk and gapless surface states consisting of Majorana fermions. The theory of topological superconductors is reviewed, in close analogy to the theory of topological insulators.

Xiao-Liang Qi and Shou-Cheng Zhang

2011-10-14T23:59:59.000Z

55

Chapter 9 - Pipeline Insulation  

Science Journals Connector (OSTI)

Oilfield pipelines are insulated mainly to conserve heat. The need to keep the product in the pipeline at a temperature higher than the ambient could exist for the following reasons: preventing the formation of gas hydrates, preventing the formation of wax or asphaltenes, enhancing the product flow properties, increasing the cooldown time after shutting down, and meeting other operational/process equipment requirements. On the other hand, in liquefied gas pipelines, such as LNG, insulation is required to maintain the cold temperature of the gas to keep it in a liquid state. This chapter describes the commonly used insulation materials, insulation finish on pipes, and general requirements for insulation of offshore and deepwater pipelines.

Boyun Guo; Shanhong Song; Ali Ghalambor; Tian Ran Lin

2014-01-01T23:59:59.000Z

56

Thermal Insulation of Clothing (Icl)  

Science Journals Connector (OSTI)

The intrinsic insulation of a clothing assembly. The effective insulation of clothing is (Icl + Ia)...2 · W?1] and sometimes in [clo].

2012-01-01T23:59:59.000Z

57

Equipment Insulation | Open Energy Information  

Open Energy Info (EERE)

List of Equipment Insulation Incentives Retrieved from "http:en.openei.orgwindex.php?titleEquipmentInsulation&oldid267163" Category: Articles with outstanding TODO tasks...

58

Membrane permeation process for dehydration of organic liquid mixtures using sulfonated ion-exchange polyalkene membranes  

DOE Patents (OSTI)

A membrane permeation process for dehydrating a mixture of organic liquids, such as alcohols or close boiling, heat sensitive mixtures. The process comprises causing a component of the mixture to selectively sorb into one side of sulfonated ion-exchange polyalkene (e.g., polyethylene) membranes and selectively diffuse or flow therethrough, and then desorbing the component into a gas or liquid phase on the other side of the membranes.

Cabasso, Israel (131 Buckingham Ave., Syracuse, NY 13210); Korngold, Emmanuel (P.O. Box 1025, Beer-Sheva 84110, IL)

1988-01-01T23:59:59.000Z

59

Insulation fact sheet  

SciTech Connect

Electricity bills, oil bills, gas bills - all homeowners pay for one or more of these utilities, and wish they paid less. Often many of us do not really know how to control or reduce our utility bills. We resign ourselves to high bills because we think that is the price we have to pay for a comfortable home. We encourage our children to turn off the lights and appliances, but may not recognize the benefits of insulating the attic. This publication provides facts relative to home insulation. It discusses where to insulate, what products to use, the decision making process, installation options, and sources of additional information.

NONE

1997-08-01T23:59:59.000Z

60

Adhesive technologies in repairing polyethylene pipelines  

Science Journals Connector (OSTI)

Adhesive technologies for repairing polyethylene pipelines are considered taking into account the peculiarities ... the modified binder for application in the gluing repair technologies under consideration. It is...

V. F. Stroganov

2014-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Thermally insulated pipelines successfully move high-wax-content crude offshore Gabon  

SciTech Connect

Three thermally insulated pipelines have been installed at a water depth of 35 m (115 ft) in Shell Gabon's Lucina Marine field. The three lines consist of two 2-km (1.24-mile) long flowlines connecting drilling and production platforms and a 3.2 km (2 mile) long loading line connecting a production platform to a storage tanker permanently moored in the field. All three pipelines are of 10.75-in. OD with rigid polyurethane-foam insulation contained in a high-density polyethylene sleeve. The pipelines have been designed with an operating temperature of 90/degree/C. (194/degree/F.). Thermal insulation was chosen because of the Lucina crude's high wax cloud point of 55/degree/C. (131/degree/F.). Without insulation, cooling of the crude in subsea pipelines would have lead to rapid wax deposition. Details of the coating and insulation of the line and riser pipe are given. For the line pipe, a thermal-insulation system consisting of polyurethane foam (PUF) within a polyethylene (PE) sleeve pipe was chosen.

Hales, M.

1982-01-25T23:59:59.000Z

62

Plasma Magnetic Insulation  

Science Journals Connector (OSTI)

29 June 1987 research-article Plasma Magnetic Insulation B. B. Kadomtsev Theoretically the strong magnetic field of a tokamak should confine electrons and ions in a high-temperature...

1987-01-01T23:59:59.000Z

63

Cooper Pairs in Insulators?!  

ScienceCinema (OSTI)

Nearly 50 years elapsed between the discovery of superconductivity and the emergence of the microscopic theory describing this zero resistance state. The explanation required a novel phase of matter in which conduction electrons joined in weakly bound pairs and condensed with other pairs into a single quantum state. Surprisingly, this Cooper pair formation has also been invoked to account for recently uncovered high-resistance or insulating phases of matter. To address this possibility, we have used nanotechnology to create an insulating system that we can probe directly for Cooper pairs. I will present the evidence that Cooper pairs exist and dominate the electrical transport in these insulators and I will discuss how these findings provide new insight into superconductor to insulator quantum phase transitions. 

James Valles

2010-01-08T23:59:59.000Z

64

Insulator for laser housing  

DOE Patents (OSTI)

The present invention provides a heat-resistant electrical insulator adapted for joining laser housing portions, which insulator comprises: an annulus; a channel in the annulus traversing the circumference and length of the housing; at least two ports, each communicating with the channel and an outer surface of the housing; and an attachment for securely attaching each end of the annulus to a laser housing member.

Duncan, David B. (Auburn, CA)

1992-01-01T23:59:59.000Z

65

Insulator for laser housing  

DOE Patents (OSTI)

The present invention provides a heat-resistant electrical insulator adapted for joining laser housing portions, which insulator comprises: an annulus; a channel in the annulus traversing the circumference and length of the housing; at least two ports, each communicating with the channel and an outer surface of the housing; and an attachment for securely attaching each end of the annulus to a laser housing member. 3 figs.

Duncan, D.B.

1992-12-29T23:59:59.000Z

66

Branch content of metallocene polyethylene Ramnath Ramachandran, Gregory Beaucage*  

E-Print Network (OSTI)

Branch content of metallocene polyethylene Ramnath Ramachandran, Gregory Beaucage* and Amit catalyzed polyethylene (PE). A novel scaling approach is applied to determine the mole fraction branch solutions of metallocene polyethylene samples, to quantify the LCB content in polymers previously studied

Beaucage, Gregory

67

REVIEW ARTICLE Polyethylene and biodegradable mulches for agricultural  

E-Print Network (OSTI)

REVIEW ARTICLE Polyethylene and biodegradable mulches for agricultural applications: a review on crop yield and pest management, (2) limitations of polyethylene mulches and potential alterna- tives benefits, removal and disposal of conventional polyethylene mulches remains a major agro- nomic, economic

Boyer, Edmond

68

Capillary Break Beneath a Slab: Polyethylene Sheeting over Aggregate...  

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

Capillary Break Beneath a Slab: Polyethylene Sheeting Over Aggregate Southwestern Pennsylvania PROJECT INFORMATION Project Name: Capillary Break Beneath a Slab: Polyethylene...

69

Phosphate-Containing Polyethylene Glycol Polymers Prevent Lethal...  

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

Phosphate-Containing Polyethylene Glycol Polymers Prevent Lethal Sepsis by Multidrug-Resistant Pathogens. Phosphate-Containing Polyethylene Glycol Polymers Prevent Lethal Sepsis by...

70

Effect of optically modified polyethylene terephthalate fiber socks on chronic foot pain  

E-Print Network (OSTI)

of optically modified polyethylene terephthalate fiber sockswhether socks made from polyethylene terephthalate (PET)

York, Robyn MB; Gordon, Ian L

2009-01-01T23:59:59.000Z

71

Bamboo–Fiber Filled High Density Polyethylene Composites: Effect of Coupling Treatment and Nanoclay  

Science Journals Connector (OSTI)

High density polyethylene (HDPE)/bamboo composites with different nanoclay and maleated polyethylene (MAPE) contents were...

G. Han; Y. Lei; Q. Wu; Y. Kojima; S. Suzuki

2008-04-01T23:59:59.000Z

72

Insulation Materials | Department of Energy  

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

Insulation Materials Insulation Materials Insulation Materials May 30, 2012 - 10:08am Addthis Cellulose, a fiber insulation material with a high recycled content, is blown into a home attic. | Photo courtesy of Cellulose Insulation Manufacturers Association. Cellulose, a fiber insulation material with a high recycled content, is blown into a home attic. | Photo courtesy of Cellulose Insulation Manufacturers Association. Blown-in fiberglass insulation thoroughly fills the stud cavities in this home. | Photo courtesy of Bob Hendron, NREL. Blown-in fiberglass insulation thoroughly fills the stud cavities in this home. | Photo courtesy of Bob Hendron, NREL. Rigid foam board adds R-value to this wall in a Florida home. | Photo courtesy of FSEC/IBACOS. Rigid foam board adds R-value to this wall in a Florida home. | Photo

73

Electoral Competition, Political Uncertainty and Policy Insulation  

E-Print Network (OSTI)

Uncertainty and Policy Insulation Horn, Murray. 1995. TheUncertainty and Policy Insulation United States Congress.UNCERTAINTY AND POLICY INSULATION Rui J. P. de Figueiredo,

de Figueiredo, Rui J. P. Jr.

2001-01-01T23:59:59.000Z

74

Training: Mechanical Insulation | Department of Energy  

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

conjunction with the National Insulation Association and the International Association of Heat and Frost Insulators and Allied Workers. Mechanical insulation can play a significant...

75

OXYGEN TRANSPORT CERAMIC MEMBRANES  

SciTech Connect

In the present quarter, oxygen transport perovskite ceramic membranes are evaluated for strength and fracture in oxygen gradient conditions. Oxygen gradients are created in tubular membranes by insulating the inner surface from the reducing environment by platinum foils. Fracture in these test conditions is observed to have a gradient in trans and inter-granular fracture as opposed to pure trans-granular fracture observed in homogeneous conditions. Fracture gradients are reasoned to be due to oxygen gradient set up in the membrane, variation in stoichiometry across the thickness and due to varying decomposition of the parent perovskite. The studies are useful in predicting fracture criterion in actual reactor conditions and in understanding the initial evolution of fracture processes.

Dr. Sukumar Bandopadhyay; Dr. Nagendra Nagabhushana

2002-07-01T23:59:59.000Z

76

Highly Insulating Window Technology  

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

Window Technology Window Technology Temperature differentials across a window, particularly with cold exterior environments in residential buildings, can lead to significant energy losses. Currently available low-emissivity coatings, gas-fills, and insulating frames provide significant energy savings over typical single or double glazed products. The EWC website provides information on how double glazed low-e gas-filled windows work as well as information on commercially available superwindows (three layer, multiple low-e coatings, high performance gas-fills). The next generation of highly insulating window systems will benefit from incremental improvements being made to current components (i.e. more insulating spacers and frame materials/designs, low-e coatings with improved performance properties). LBNL uses its experimental facilities and software tools to collaborate with window and glass industry representatives to better understand the impacts of new components on overall product performance.

77

Domestic Heating and Thermal Insulation  

Science Journals Connector (OSTI)

... DIGEST 133 of the Building Research Station, entitled "Domestic Heating and Thermal Insulation" (Pp. 7. London : H.M. Stationery Office, 1960. 4insulation, the standard of heating, the ventilation-rate and the length of the heating season ...

1960-09-17T23:59:59.000Z

78

Thermal Insulation for Energy Conservation  

Science Journals Connector (OSTI)

The use of thermal insulations to reduce heat flow across the building ... decades. Materials available for use as building insulation include naturally occurring fibers and particles, man ... plastics, evacuated...

Dr. David W. Yarbrough Ph.D.; PE

2012-01-01T23:59:59.000Z

79

Branch length distribution in TREF fractionated polyethylene Ramnath Ramachandran a  

E-Print Network (OSTI)

Branch length distribution in TREF fractionated polyethylene Ramnath Ramachandran a , Gregory Keywords: Polyethylene Branching Neutron scattering a b s t r a c t Commercial polyethylene is typically and catalyst activity. Further, processing of polyethylene after polymerization may also result in changes

Beaucage, Gregory

80

Contaminant trap for gas-insulated apparatus  

DOE Patents (OSTI)

A resinous body is placed in gas-insulated electrical apparatus to remove particulate material from the insulating gas.

Adcock, J.L.; Pace, M.O.; Christophorou, L.G.

1984-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Optomechanical and photothermal interactions in suspended photonic crystal membranes  

E-Print Network (OSTI)

We present here an optomechanical system fabricated with novel stress management techniques that allow us to suspend an ultrathin defect-free silicon photonic-crystal membrane above a Silicon-on-Insulator (SOI) substrate ...

Woolf, David

82

Peg supported thermal insulation panel  

DOE Patents (OSTI)

A thermal insulation panel which is lightweight, load bearing, accommodates thermal stress, and has excellent high temperature insulation capability comprises high performance insulation between thin metal walls supported by high density, high strength glass pegs made in compliance with specified conditions of time, temperature and pressure. 2 figs.

Nowobilski, J.J.; Owens, W.J.

1985-04-30T23:59:59.000Z

83

Peg supported thermal insulation panel  

DOE Patents (OSTI)

A thermal insulation panel which is lightweight, load bearing, accommodates thermal stress, and has excellent high temperature insulation capability comprising high performance insulation between thin metal walls supported by high density, high strength glass pegs made in compliance with specified conditions of time, temperature and pressure.

Nowobilski, Jeffert J. (Orchard Park, NY); Owens, William J. (Kenmore, NY)

1985-01-01T23:59:59.000Z

84

Switching Surges and Air Insulation  

Science Journals Connector (OSTI)

...research-article Switching Surges and Air Insulation B. Jones Some thirteen years ago...reduction was noticed in the strength of air insulation when subjected to slowly rising positive...collected in high voltage laboratories. Insulation against switching surges is now seen...

1973-01-01T23:59:59.000Z

85

Soluble hyperbranched grafts on polyethylene surfaces  

E-Print Network (OSTI)

Here we report two methods to synthesize hyperbranched poly(acrylic acid) grafts on polyethylene films and powders. The previously reported route using ?,[]-diaminopoly(tert-butyl acrylate) was repeated and all previous results were confirmed...

Britton, Danielle M

2012-06-07T23:59:59.000Z

86

Polyethylene Encapsulation of Depleted Uranium Trioxide  

Science Journals Connector (OSTI)

Depleted uranium, in the form of uranium trioxide (UO3) powder, was encapsulated in molten polyethylene forming a stable, dense composite henceforth known as DUPoly (patent pending). Materials were fed by calibra...

J. W. Adams; P. R. Lageraaen; P. D. Kalb…

2002-01-01T23:59:59.000Z

87

Biogene Polyolefine: Polyethylen aus biogenem Ethanol  

Science Journals Connector (OSTI)

Polyolefine [1], [2] sind die wichtigsten Massenkunststoffe und speziell Polyethylen (PE) in seinen verschiedenen Varianten PE niedriger Dichte (PE-LD), PE hoher Dichte (PE-HD) und lineares PE niedriger Dichte...

Oliver Türk Prof. Dr.

2014-01-01T23:59:59.000Z

88

Insulation Materials | Department of Energy  

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

Materials Materials Insulation Materials May 30, 2012 - 10:08am Addthis Cellulose, a fiber insulation material with a high recycled content, is blown into a home attic. | Photo courtesy of Cellulose Insulation Manufacturers Association. Cellulose, a fiber insulation material with a high recycled content, is blown into a home attic. | Photo courtesy of Cellulose Insulation Manufacturers Association. Blown-in fiberglass insulation thoroughly fills the stud cavities in this home. | Photo courtesy of Bob Hendron, NREL. Blown-in fiberglass insulation thoroughly fills the stud cavities in this home. | Photo courtesy of Bob Hendron, NREL. Rigid foam board adds R-value to this wall in a Florida home. | Photo courtesy of FSEC/IBACOS. Rigid foam board adds R-value to this wall in a Florida home. | Photo

89

A strategy for the quantification of protein polyethylene glycol (PEG) derivatized sites using iTRAQ  

E-Print Network (OSTI)

for characterization of polyethylene glycol-derivatizedof the attachment sites in polyethylene glycol-derivatizedfor the Quantification of Protein Polyethylene Glycol (PEG)

Monk, Rebecca Helen

2011-01-01T23:59:59.000Z

90

Polyethylene as a Radiation Shielding Standard in Simulated Cosmic-Ray Environments  

E-Print Network (OSTI)

on the ISS through polyethylene shielding augmentation ofnucleon Iron-56 in Polyethylene. II. , Comparisons betweenPolyethylene as a Radiation Shielding Standard in Simulated

2006-01-01T23:59:59.000Z

91

Highly Insulating Windows - Cost  

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

Cost Cost The following is an estimate of the cost effective incremental cost of highly-insulating windows (U-factor=0.20 Btu/hr-ft2-F) compared to regular ENERGY STAR windows (U-factor 0.35 Btu/hr-ft2-F). Energy savings from lower U-factors were simulated with RESFEN over an assumed useful window life of 25 years. To determine the maximum incremental cost at which highly-insulating windows would still be cost-effective, we used a formula used by many utility companies to calculate the cost of saved energy from energy efficiency programs, based on the programs' cost and savings. We turned this formula around so that the cost of saved energy equals the present energy prices in the studied locations, whereas the program cost (the incremental cost of the windows) is the dependent variable. By entering 5%

92

Compact vacuum insulation  

DOE Patents (OSTI)

An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially "point" or "line" contacts with the metal wall sheets. In the case of monolithic spacers that form "line" contacts, two such spacers with the line contacts running perpendicular to each other form effectively "point" contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included.

Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

1993-01-01T23:59:59.000Z

93

Compact vacuum insulation embodiments  

DOE Patents (OSTI)

An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially "point" or "line" contacts with the metal wall sheets. In the case of monolithic spacers that form "line" contacts, two such spacers with the line contacts running perpendicular to each other form effectively "point" contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included.

Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

1992-01-01T23:59:59.000Z

94

Compact vacuum insulation  

DOE Patents (OSTI)

An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially point'' or line'' contacts with the metal wall sheets. In the case of monolithic spacers that form line'' contacts, two such spacers with the line contacts running perpendicular to each other form effectively point'' contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included.

Benson, D.K.; Potter, T.F.

1993-01-05T23:59:59.000Z

95

Gas filled panel insulation  

DOE Patents (OSTI)

A structural or flexible highly insulative panel which may be translucent, is formed from multi-layer polymeric material in the form of an envelope surrounding a baffle. The baffle is designed so as to minimize heat transfer across the panel, by using material which forms substantially closed spaces to suppress convection of the low conductivity gas fill. At least a portion of the baffle carries a low emissivity surface for suppression of infrared radiation.

Griffith, Brent T. (Berkeley, CA); Arasteh, Dariush K. (Oakland, CA); Selkowitz, Stephen E. (Piedmont, CA)

1993-01-01T23:59:59.000Z

96

Gas filled panel insulation  

DOE Patents (OSTI)

A structural or flexible highly insulative panel which may be translucent, is formed from multi-layer polymeric material in the form of an envelope surrounding a baffle. The baffle is designed so as to minimize heat transfer across the panel, by using material which forms substantially closed spaces to suppress convection of the low conductivity gas fill. At least a portion of the baffle carries a low emissivity surface for suppression of infrared radiation. 18 figures.

Griffith, B.T.; Arasteh, D.K.; Selkowitz, S.E.

1993-12-14T23:59:59.000Z

97

Superconducting Topological Insulators  

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

Superconducting Topological Insulators Print Superconducting Topological Insulators Print Three-dimensional topological insulators (TIs), discovered experimentally in 2007-2009 by a Princeton-ALS collaboration, are a promising platform for developing the next generation of electronics. Electrons within one nanometer of a TI's surface move at high speeds in a "light-like" fashion. The quantum interactions that generate these electronic states cause individual electrons to be spin polarized even at room temperature and to strongly resist scattering from defects, naturally achieving some of the most desirable traits for computing components and next-generation "spintronics" technologies. More recent angle-resolved photoemission spectroscopy (ARPES) studies performed at ALS Beamlines 10.0.1 and 12.0.1 by the same collaboration have paved a way for these novel material properties to be taken even further. Their studies showed that by doping the TI, bismuth selenide, with copper, it's possible to make the topologically ordered electrons superconducting, dropping electrical resistance in the surface states all the way to zero.

98

Superconducting Topological Insulators  

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

Superconducting Topological Insulators Print Superconducting Topological Insulators Print Three-dimensional topological insulators (TIs), discovered experimentally in 2007-2009 by a Princeton-ALS collaboration, are a promising platform for developing the next generation of electronics. Electrons within one nanometer of a TI's surface move at high speeds in a "light-like" fashion. The quantum interactions that generate these electronic states cause individual electrons to be spin polarized even at room temperature and to strongly resist scattering from defects, naturally achieving some of the most desirable traits for computing components and next-generation "spintronics" technologies. More recent angle-resolved photoemission spectroscopy (ARPES) studies performed at ALS Beamlines 10.0.1 and 12.0.1 by the same collaboration have paved a way for these novel material properties to be taken even further. Their studies showed that by doping the TI, bismuth selenide, with copper, it's possible to make the topologically ordered electrons superconducting, dropping electrical resistance in the surface states all the way to zero.

99

Superconducting Topological Insulators  

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

Superconducting Topological Insulators Print Superconducting Topological Insulators Print Three-dimensional topological insulators (TIs), discovered experimentally in 2007-2009 by a Princeton-ALS collaboration, are a promising platform for developing the next generation of electronics. Electrons within one nanometer of a TI's surface move at high speeds in a "light-like" fashion. The quantum interactions that generate these electronic states cause individual electrons to be spin polarized even at room temperature and to strongly resist scattering from defects, naturally achieving some of the most desirable traits for computing components and next-generation "spintronics" technologies. More recent angle-resolved photoemission spectroscopy (ARPES) studies performed at ALS Beamlines 10.0.1 and 12.0.1 by the same collaboration have paved a way for these novel material properties to be taken even further. Their studies showed that by doping the TI, bismuth selenide, with copper, it's possible to make the topologically ordered electrons superconducting, dropping electrical resistance in the surface states all the way to zero.

100

Highly Insulating Windows - Fram  

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

Frames Frames Research performed at the Norwegian University of Science and Technology and LBNL has identified various highly insulating frame solutions. A report was released in 2007 describing some of these frames. This document reports the findings of a market and research review related to state-of-the-art highly insulating window frames. The market review focuses on window frames that satisfy the Passivhaus requirements (window U-value less or equal to 0.8 W/m2K ), while other examples are also given in order to show the variety of materials and solutions that may be used for constructing window frames with a low thermal transmittance (U-value). The market search shows that several combinations of materials are used in order to obtain window frames with a low U-value. The most common insulating material seems to be Polyurethane (PUR), which is used together with most of the common structural materials such as wood, aluminum, and PVC.

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Polymeric compositions incorporating polyethylene glycol as a phase change material  

DOE Patents (OSTI)

A polymeric composition comprising a polymeric material and polyethylene glycol or end-capped polyethylene glycol as a phase change material, said polyethylene glycol and said end-capped polyethylene glycol having a molecular weight greater than about 400 and a heat of fusion greater than about 30 cal/g; the composition is useful in making molded and/or coated materials such as flooring, tiles, wall panels and the like; paints containing polyethylene glycols or end-capped polyethylene glycols are also disclosed.

Salyer, Ival O. (Dayton, OH); Griffen, Charles W. (Mason, OH)

1989-01-01T23:59:59.000Z

102

Temperature Dependent Neutron Scattering Sections for Polyethylene  

E-Print Network (OSTI)

This note presents neutron scattering cross sections for polyethylene at 296 K, 77 K and 4 K derived from a new scattering kernel for neutron scattering off of hydrogen in polyethylene. The kernel was developed in ENDF-6 format as a set of S(alpha,beta) tables using the LEAPR module of the NJOY94 code package. The polyethylene density of states (from 0 to sub eV) adopted to derive the new kernel is presented. We compare our calculated room temperature total scattering cross sections and double differential cross sections at 232 meV at various angles with the available experimental data (at room temperature), and then extrapolate the calculations to lower temperatures (77K and 4K). The new temperature dependent scattering kernel gives a good quantitative fit to the available room temperature data and has a temperature dependence that is qualitatively consistent with thermodynamics.

Roger E. Hill; C. -Y. Liu

2003-09-05T23:59:59.000Z

103

Thermal insulations using vacuum panels  

DOE Patents (OSTI)

Thermal insulation vacuum panels are formed of an inner core of compressed low thermal conductivity powders enclosed by a ceramic/glass envelope evaluated to a low pressure.

Glicksman, Leon R. (Lynnfield, MA); Burke, Melissa S. (Pittsburgh, PA)

1991-07-16T23:59:59.000Z

104

Electronic conduction through single crystals of polyethylene  

E-Print Network (OSTI)

May, 1966 Major Subjects Physics ELECTRONIC CONDUCTION THROUGH SINGLE CRYSTRLS OF POLYETHYLENE k Thesis By Gerald Maurice Samson Approved as to style and content by: naen of the Committee ad of the D artment ber ber c- The autho. u... talc o Polyot! ylone . -y, i'oo Gerald !':cur"' co Samson Directed by: Zr. Joe S. The predominant conduction mechani m through single cryo' mls op polyethylene is shown to be Schott!cy ( hernal) oui "sion . or tompora- o tu. es - bove 0 C. . "or...

Samson, Gerald Maurice

1966-01-01T23:59:59.000Z

105

Exact Topological Twistons in Crystalline Polyethylene  

E-Print Network (OSTI)

We investigate the presence of topological twistons in crystalline polyethylene. We describe crystalline polyethylene with a model that couples the torsional and longitudinal degrees of freedom of the polymeric chain by means of a system of two real scalar fields. This model supports topological twistons, which are described by exact and stable topological solutions that appear when the interaction between torsional and longitudinal fields is polynomial, containing up to the sixth power in the fields. We calculate the energy of the topological twiston, and the result is in very good agreement with the value obtained via molecular simulation.

E. Ventura; A. M. Simas; D. Bazeia

2000-04-04T23:59:59.000Z

106

Wood-Fiber/High-Density-Polyethylene Composites: Compounding Process  

E-Print Network (OSTI)

Wood-Fiber/High-Density-Polyethylene Composites: Compounding Process J. Z. Lu,1 Q. Wu,1 I. I parameters for the wood-fiber/high-density-polyethylene blends at 60 rpm were a temperature of 180°C

107

Moisture Durability of Vapor Permeable Insulating Sheathing (Fact Sheet), Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)  

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

BUILDING TECHNOLOGIES OFFICE BUILDING TECHNOLOGIES OFFICE Building America Case Study Technology Solutions for New and Existing Homes Moisture Durability of Vapor Permeable Insulating Sheathing PROJECT INFORMATION Construction: Existing homes with vapor open wall assemblies Type: Residential Climate Zones: All PERFORMANCE DATA Insulation Ratio The R-value ratio of exterior to interior insulation (e.g., R-15 exterior insulation on R-11 cavity insulation has a ratio of 0.58). This variable controls sheathing temperature. Vapor Permeable Insulation An insulation with vapor permeance greater than five U.S. perms (e.g., rigid mineral fiber insulations). This variable controls water vapor flow and sheathing temperatures. Water Resisting Barrier A membrane that resists liquid water transfer. Permeable WRBs allow water

108

OXYGEN TRANSPORT CERAMIC MEMBRANES  

SciTech Connect

In the present quarter, the possibility of using a more complex interfacial engineering approach to the development of reliable and stable oxygen transport perovskite ceramic membranes/metal seals is discussed. Experiments are presented and ceramic/metal interactions are characterized. Crack growth and fracture toughness of the membrane in the reducing conditions are also discussed. Future work regarding this approach is proposed are evaluated for strength and fracture in oxygen gradient conditions. Oxygen gradients are created in tubular membranes by insulating the inner surface from the reducing environment by platinum foils. Fracture in these test conditions is observed to have a gradient in trans and inter-granular fracture as opposed to pure trans-granular fracture observed in homogeneous conditions. Fracture gradients are reasoned to be due to oxygen gradient set up in the membrane, variation in stoichiometry across the thickness and due to varying decomposition of the parent perovskite. The studies are useful in predicting fracture criterion in actual reactor conditions and in understanding the initial evolution of fracture processes.

Dr. Sukumar Bandopadhyay; Dr. Nagendra Nagabhushana

2003-01-01T23:59:59.000Z

109

Crosslinked polymer gel electrolytes based on polyethylene glycol methacrylate and ionic liquid for lithium battery applications  

SciTech Connect

Gel polymer electrolytes were synthesized by copolymerization polyethylene glycol methyl ether methacrylate with polyethylene glycol dimethacrylate in the presence of a room temperature ionic liquid, methylpropylpyrrolidinium bis(trifluoromethanesulfonyl)imide (MPPY TFSI). The physical properties of gel polymer electrolytes were characterized by thermal analysis, impedance spectroscopy, and electrochemical tests. The ionic conductivities of the gel polymer electrolytes increased linearly with the amount of MPPY TFSI and were mainly attributed to the increased ion mobility as evidenced by the decreased glass transition temperatures. Li||LiFePO4 cells were assembled using the gel polymer electrolytes containing 80 wt% MPPY TFSI via an in situ polymerization method. A reversible cell capacity of 90 mAh g 1 was maintained under the current density of C/10 at room temperature, which was increased to 130 mAh g 1 by using a thinner membrane and cycling at 50 C.

Liao, Chen [ORNL; Sun, Xiao-Guang [ORNL; Dai, Sheng [ORNL

2013-01-01T23:59:59.000Z

110

The Microbiological Deterioration of Rubber Insulation  

Science Journals Connector (OSTI)

...Microbiological Deterioration of Rubber Insulation John T. Blake Donald W. Kitchin Orison...Microbiological Deterioration of Rubber Insulation JOHN T. BLAKE, DONALD W. KITCHIN...By burying wire samples with thin insulation in active soil, the rate of failure...

John T. Blake; Donald W. Kitchin; Orison S. Pratt

1955-01-01T23:59:59.000Z

111

Ground Insulation Measurement in AC IT Systems  

Science Journals Connector (OSTI)

In the chapter there is presented general information on physical nature of network-to-ground insulation. Sense of “insulation equivalent resistance” parameter is explained. A method of insulation resistances-to-...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

112

Compact vacuum insulation  

DOE Patents (OSTI)

Improved compact insulation panel is provided which is comprised of two adjacent metal sheets spaced close together with a plurality of spherical, or other discretely shaped, glass or ceramic beads optimally positioned between the sheets to provide support and maintain the spacing between the metal sheets when the gases there between are evacuated to form a vacuum. These spherical glass beads provide the maximum support while minimizing thermal conductance. In its preferred embodiment; these two metal sheets are textured with ribs or concave protrusions in conjunction with the glass beads to maximize the structural integrity of the panels while increasing the spacing between beads, thereby reducing the number of beads and the number of thermal conduction paths. Glass or porcelain-enameled liners in combination with the glass spacers and metal sidewalls effectively decrease thermal conductivity, and various laminates, including wood, porcelain-enameled metal, and others effectively increase the strength and insulation capabilities of the panels. Also, a metal web is provided to hold the spacers in place, and strategic grooves are shown to accommodate expansion and contraction or shaping of the panels. 35 figs.

Benson, D.K.; Potter, T.F.

1992-10-27T23:59:59.000Z

113

Compact vacuum insulation  

DOE Patents (OSTI)

Improved compact insulation panel is provided which is comprised of two adjacent metal sheets spaced close together with a plurality of spherical, or other discretely shaped, glass or ceramic beads optimally positioned between the sheets to provide support and maintain the spacing between the metal sheets when the gases therebetween are evacuated to form a vacuum. These spherical glass beads provide the maximum support while minimizing thermal conductance. In its preferred embodiment; these two metal sheets are textured with ribs or concave protrusions in conjunction with the glass beads to maximize the structural integrity of the panels while increasing the spacing between beads, thereby reducing the number of beads and the number of thermal conduction paths. Glass or porcelain-enameled liners in combination with the glass spacers and metal sidewalls effectively decrease thermal conductivity, and variious laminates, including wood, porcelain-enameled metal, and others effectively increase the strength and insulation capabilities of the panels. Also, a metal web is provided to hold the spacers in place, and strategic grooves are shown to accommodate expansion and contraction or shaping of the panels.

Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

1992-01-01T23:59:59.000Z

114

Diamond Lattice Model of Semicrystalline Polyethylene in the Amorphous Region  

E-Print Network (OSTI)

Diamond Lattice Model of Semicrystalline Polyethylene in the Amorphous Region Zhong­Hui Duan Abstract The statistics of polyethylene chains in the amorphous region between two crystallites have been as models of the chain molecules in the amorphous region of semicrystalline polyethylene, both

Aluffi, Paolo

115

Wood-Fiber/High-Density-Polyethylene Composites: Coupling Agent Performance  

E-Print Network (OSTI)

Wood-Fiber/High-Density-Polyethylene Composites: Coupling Agent Performance John Z. Lu,1 Qinglin Wu structure. As a coupling agent, mal- eated polyethylene (MAPE) had a better performance in WPC than oxidized polyethylene (OPE) and pure polyeth- ylene (PPE) because of its stronger interfacial bonding. A combination

116

Test method Evaluating the influence of contacting fluids on polyethylene  

E-Print Network (OSTI)

Test method Evaluating the influence of contacting fluids on polyethylene using acoustic emissions emissions Polyethylene Penetrant Toluene Aqueous detergent a b s t r a c t Identifying microstructural) on the structure of a semi-crystalline polymer (high density polyethylene, HDPE) over different periods of exposure

Thompson, Michael

117

Versatile ferrofluids based on polyethylene glycol coated iron oxide nanoparticles  

E-Print Network (OSTI)

Versatile ferrofluids based on polyethylene glycol coated iron oxide nanoparticles W. Brullot a in revised form 20 December 2011 Available online 3 February 2012 Keywords: Ferrofluid Polyethylene glycol Magneto-optics Magnetite Rheology a b s t r a c t Versatile ferrofluids based on polyethylene glycol

118

Adsorption of Polypropylene and Polyethylene on Liquid Chromatographic  

E-Print Network (OSTI)

Adsorption of Polypropylene and Polyethylene on Liquid Chromatographic Column Packings T. Macko1 tested as column packings for adsorption of isotactic polypropylene and linear polyethylene from dilute solutions. It was found that polyethylene is fully or partially retained from thermodynamically good sol

Li, Jing

119

Automated Assessment of Polyethylene Wear in Cemented Acetabular Components using  

E-Print Network (OSTI)

Automated Assessment of Polyethylene Wear in Cemented Acetabular Components using Anteroposterior, Ninewells Hospital, Dundee, DD1 9SY, UK Abstract Polyethylene wear in the acetabular components of hip to the polyethylene acetabular component of a prosthesis so that both it and the metal femoral head component can

St Andrews, University of

120

Atmospheric Pressure Plasma Jet Treatment of Polyethylene Surfaces for  

E-Print Network (OSTI)

Atmospheric Pressure Plasma Jet Treatment of Polyethylene Surfaces for Adhesion Improvement Uwe studied the activation mechanism of polyethylene (PE) for a pretreatment with a commercial APPJ system jet system from Plasmatreat GmbH (Steinhagen, Germany) was used for the Full Paper Polyethylene (PE

Greifswald, Ernst-Moritz-Arndt-Universität

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

NANO-SCALE CALORIMETRY OF ISOLATED POLYETHYLENE SINGLE CRYSTALS  

E-Print Network (OSTI)

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

Allen, Leslie H.

122

An Instability Leading to Failure of Polyethylene in Uniaxial Creep  

E-Print Network (OSTI)

An Instability Leading to Failure of Polyethylene in Uniaxial Creep L. J. ZAPAS and J. M. CRISSMAN model, a point of instability is pre- dicted for the uniaxial creep of high density polyethylene. From dead load experiments it has been found that the instabil- ity occurs for linear -polyethylene

123

Irradiation effects in high-density polyethylene Jussi Polvia  

E-Print Network (OSTI)

Irradiation effects in high-density polyethylene Jussi Polvia , Kai Nordlunda a simulations, we have studied the irradiation effects in high density polyethylene. We determined the threshold energy for creating defects in the polyethylene lattice as a function of the incident angle. We found

Nordlund, Kai

124

RESEARCH ARTICLE Biodegradable mulch instead of polyethylene for weed  

E-Print Network (OSTI)

RESEARCH ARTICLE Biodegradable mulch instead of polyethylene for weed control of processing tomato Abstract Black polyethylene (PE) film is used for mulch- ing in processing tomato (Lycopersicon esculentum be an alternative. Keywords Polyethylene . Biodegradable mulch . Paper. Barley straw 1 Introduction Weeds

Paris-Sud XI, Université de

125

Original article Effects of polyethylene glycol in concentrate or feed  

E-Print Network (OSTI)

Original article Effects of polyethylene glycol in concentrate or feed blocks on carcass -- The influence of concentrate or feed blocks with or without Polyethylene glycol (PEG, molecular weight 4000. / tannins / concentrate / feed blocks / polyethylene glycol / carcass quality / offal weight Résumé

Boyer, Edmond

126

ORIGINAL PAPER BambooFiber Filled High Density Polyethylene Composites  

E-Print Network (OSTI)

ORIGINAL PAPER Bamboo­Fiber Filled High Density Polyethylene Composites: Effect of Coupling Springer Science+Business Media, LLC 2008 Abstract High density polyethylene (HDPE)/bamboo composites in the future study. Keywords Bamboo Á High density polyethylene Á Coupling treatment Á Nanoclay Introduction

127

Optical Properties and Orientation in Polyethylene Blown Films  

E-Print Network (OSTI)

Optical Properties and Orientation in Polyethylene Blown Films AYUSH BAFNA,1 GREGORY BEAUCAGE,1 properties of blown poly- ethylene films. Two types of blown polyethylene films of similar degrees of crystallinity were made from (1) single-site-catalyst high-density polyethylene (HDPE; STAR ) and (2) Ziegler

Beaucage, Gregory

128

Polyethylene-supported polyvinylidene fluoride–cellulose acetate butyrate blended polymer electrolyte for lithium ion battery  

Science Journals Connector (OSTI)

The polyethylene (PE)-supported polymer membranes based on the blended polyvinylidene fluoride (PVDF) and cellulose acetate butyrate (CAB) are prepared for gel polymer electrolyte (GPE) of lithium ion battery. The performances of the prepared membranes and the resulting \\{GPEs\\} are investigated by scanning electron microscopy, electrochemical impedance spectroscopy, linear potential sweep, and charge–discharge test. The effect of the ratio of PVDF to CAB on the performance of the prepared membranes is considered. It is found that the GPE based on the blended polymer with PVDF:CAB = 2:1 (in weight) has the largest ionic conductivity (2.48 × 10?3 S cm?1) and shows good compatibility with anode and cathode of lithium ion battery. The LiCoO2/graphite battery using this GPE exhibits superior cyclic stability at room temperature, storage performance at elevated temperature, and rate performance.

Jiansheng Liu; Weishan Li; Xiaoxi Zuo; Shengqi Liu; Zhao Li

2013-01-01T23:59:59.000Z

129

A Plastic for Thermal Insulation  

Science Journals Connector (OSTI)

... ft. per in. thickness per 1° F. difference of temperature, so that its insulation properties compare very favourably with slab-cork (0-25 B.TH.U.), glass ... tenth that of slab-cork. This makes it of considerable interest in connexion with thermal insulation during transport. Isoflex is non-porous and non-absorbent, with the result that its ...

1941-04-26T23:59:59.000Z

130

New Technique in Insulation Testing  

Science Journals Connector (OSTI)

... THE new 'Megger' insulation tester, series 3, mark 3, manufactured by Evershed and Vignoles, Ltd., incorporates ... torque to the generator and provides remarkably smooth and consistent operation. In addition to the insulation testing range, the instrument operates over a continuity range 0-100 ohms with a ...

1960-10-22T23:59:59.000Z

131

The Insulation of Electric Machines  

Science Journals Connector (OSTI)

... the necessity of high potential differences have within recent years quite altered our ideas about insulation. Electrical engineers have come to view the subject from a different standpoint on account ... exceeding, their working limits of temperature, and the futility of baking to obtain temporary insulation unless moisture be permanently excluded. When dealing with the influence of brush discharge mention ...

ERNEST WILSON

1905-06-15T23:59:59.000Z

132

Excavationless Exterior Foundation Insulation Exploratory  

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

Excavationless Exterior Foundation Excavationless Exterior Foundation Insulation Exploratory Study NorthernSTAR Building America Team Garrett Mosiman Technical Approach The project begins with the concept of an "excavationless" exterior foundation insulation upgrade that is cost-competitive with current methods, and involves little impact to existing landscape and site features. Process: 1. Literature review to establish the building science case for the advantages of exterior foundation insulation vs. interior insulation 2. Presentation and analysis of two exterior, full-excavation exterior insulation upgrades to establish a base case for costs 3. Survey of five typical twin-cities neighborhoods to categorize and quantify typical obstructions 4. Web-based search to identify available materials and technologies that have

133

Solar Decathlon Technology Spotlight: Structural Insulated Panels |  

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

Decathlon Technology Spotlight: Structural Insulated Panels Decathlon Technology Spotlight: Structural Insulated Panels Solar Decathlon Technology Spotlight: Structural Insulated Panels September 20, 2011 - 7:13am Addthis These structural insulated panels consist of foam insulation sandwiched between oriented strand boards. (Courtesy of Michael Bacchler) These structural insulated panels consist of foam insulation sandwiched between oriented strand boards. (Courtesy of Michael Bacchler) Alexis Powers EDITOR'S NOTE: Originally posted on the Solar Decathlon News Blog on September 19, 2011. Editor's Note: This post is one of a series of technology spotlights that introduces common technologies used in U.S. Department of Energy Solar Decathlon team houses. Structural insulated panels (SIPs) are prefabricated structural elements

134

Solar Decathlon Technology Spotlight: Structural Insulated Panels...  

Energy Savers (EERE)

Solar Decathlon Technology Spotlight: Structural Insulated Panels Solar Decathlon Technology Spotlight: Structural Insulated Panels September 20, 2011 - 7:13am Addthis These...

135

Highly Insulating Windows - Publ  

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

Highly Insulating Windows - Publications Future Advanced Windows for Zero-Energy Homes, J. Apte, D. Arasteh, J. Huang, 2003 ASHRAE Annual Meeting, 2002 Nine representative window products are examined in eight representative U.S. climates. Annual energy and peak demand impacts are investigated. We conclude that a new generation of window products is necessary for zero-energy homes if windows are not to be an energy drain on these homes. Performance Criteria for Residential Zero Energy Windows, D. Arasteh, H. Goudey, J. Huang, C. Kohler, R. Mitchell, 2006, submitted to ASHRAE Through the use of whole house energy modeling, typical efficient products are evaluated in five US climates and compared against the requirements for ZEHs. Products which meet these needs are defined as a function of climate.

136

Multiple layer insulation cover  

DOE Patents (OSTI)

A multiple layer insulation cover for preventing heat loss in, for example, a greenhouse, is disclosed. The cover is comprised of spaced layers of thin foil covered fabric separated from each other by air spaces. The spacing is accomplished by the inflation of spaced air bladders which are integrally formed in the cover and to which the layers of the cover are secured. The bladders are inflated after the cover has been deployed in its intended use to separate the layers of the foil material. The sizes of the material layers are selected to compensate for sagging across the width of the cover so that the desired spacing is uniformly maintained when the cover has been deployed. The bladders are deflated as the cover is stored thereby expediting the storage process and reducing the amount of storage space required.

Farrell, James J. (Livingston Manor, NY); Donohoe, Anthony J. (Ovid, NY)

1981-11-03T23:59:59.000Z

137

Black Mountain Insulation | Open Energy Information  

Open Energy Info (EERE)

Insulation Insulation Jump to: navigation, search Name Black Mountain Insulation Place United Kingdom Sector Carbon Product UK-based manufacturer of sheeps wool insulation which has a low carbon footprint than traditional glassfiber insulation. Website http://www.blackmountaininsula References Black Mountain Insulation Website[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Black Mountain Insulation is a company located in United Kingdom. It was formerly known as Ochre Natural Insulation Company. [2] References ↑ "Black Mountain Insulation Website" ↑ http://www.companiesintheuk.co.uk/ltd/black-mountain-insulation Retrieved from "http://en.openei.org/w/index.php?title=Black_Mountain_Insulation&oldid=391648

138

Exterior Insulation and Overclad Retrofits  

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

Exterior Insulation & Overclad Exterior Insulation & Overclad Retrofits Residential Energy Efficiency Stakeholder Meeting March 2, 2012 - Austin, TX Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 2  Incredible practical experience:  New construction - nearly a century  Retrofit applications - many decades Exterior Insulation Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 3 1980s ON - a "weird" builder Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 4 1990s ON - a "good" builder Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 5 2000s ON - a "typical" builder Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 6

139

STATE OF CALIFORNIA INSULATION STAGE CHECKLIST  

E-Print Network (OSTI)

STATE OF CALIFORNIA INSULATION STAGE CHECKLIST CEC-CF-6R-ENV-22 (Revised 05/12) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-ENV-22 Quality Insulation Installation (QII) - Insulation Stage be insulated in a manner that resists thermal bridging of the assembly separating conditioned from

140

Chromatin insulators: lessons from the fly  

E-Print Network (OSTI)

Chromatin insulators: lessons from the fly B.V.Gurudatta and Victor G.Corces Abstract Chromatin insulators are DNA^protein complexes with broad functions in nuclear biology. Drosophila has at least five different types of insulators; recent results suggest that these different insulators share some components

Corces, Victor G.

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Insulator/Chern-insulator transition in the Haldane model T. Thonhauser and David Vanderbilt  

E-Print Network (OSTI)

Insulator/Chern-insulator transition in the Haldane model T. Thonhauser and David Vanderbilt properties of the Haldane model as the system undergoes its transition from the normal-insulator to the Chern-insulator phase. We find that the density matrix has expo- nential decay in both insulating phases, while having

Vanderbilt, David

142

2658 heat insulation [n] (1)  

Science Journals Connector (OSTI)

constr. (1. Protection against cold provided by cold-shielding materials in outer walls of a building to conserve heat and save energy. 2. In English, the generic term thermal insulation is used for ...

2010-01-01T23:59:59.000Z

143

Insulation products promote thermal efficiency  

SciTech Connect

The judicious use of thermal insulation products in non-residential buildings can provide a number of advantages including increased energy efficiency, lower first costs (by avoiding overside HVAC systems), improved fire safety and better acoustics. Thermal insulation products are those products which retard the flow of heat energy. Materials include glass, plastics, and organic materials such as wood fibers, vermiculite and perlite. Forms range from the familiar batts and blankets of glass fibers to foamed plastic, rigid boards, losse fill and systems combining two or more products, such as polystyrene boards covered with insulating plaster. The R values of selected insulation materials with a cost/sq. ft. of each material at R 10 are given. Costs cover both the material and installation and may vary depending on local conditions.

Chalmers, R.

1985-04-01T23:59:59.000Z

144

Insulators for Switchgear and Busbars  

Science Journals Connector (OSTI)

... export them abroad. They now supply 132 kv. cylindrical type switchgear insulators for the substations of the latest section of the British grid. The disadvantage of the wide base ...

1932-04-23T23:59:59.000Z

145

Insulation For Earth And Space  

Science Journals Connector (OSTI)

According to National Aeronautics & Space Administration scientist Mary Ann B. Meador, before sending people or larger vehicles to Mars, scientists must develop insulating materials to counter the planet’s exotic environment. ...

LAUREN WOLF

2012-09-16T23:59:59.000Z

146

Heat and Sound Insulation Materials  

Science Journals Connector (OSTI)

Of the three heat transfer processes: heat conduction, convection and radiation, convectional heat transfer is reduced by fiber and foam insulation materials1, 2). Air circulation is prevented by compartmentalizi...

Dr. Andre Knop; Dr. Louis A. Pilato

1985-01-01T23:59:59.000Z

147

Variable pressure thermal insulating jacket  

DOE Patents (OSTI)

A device for controlled insulation of a thermal device is disclosed. The device includes a thermal jacket with a closed volume able to be evacuated to form an insulating jacket around the thermal source. A getter material is in communication with the closed volume of the thermal jacket. The getter material can absorb and desorb a control gas to control gas pressure in the volume of the thermal jacket to control thermal conductivity in the thermal jacket. 10 figs.

Nelson, P.A.; Malecha, R.F.; Chilenskas, A.A.

1994-09-20T23:59:59.000Z

148

Engineering Aspects of Heat Transfer in Multilayer Reflective Insulation and Performance of NRC Insulation  

Science Journals Connector (OSTI)

All types of high-performance insulation, often referred to as “superinsulation,” ... Carbide Corporation in October, 1958, or the insulation proposed and tested in 1951 by P. ... D. Little, Inc., or the NRC insulation

M. P. Hnilicka

1960-01-01T23:59:59.000Z

149

Microstructure, Mechanical Behavior, and Clinical Trade-offs in Ultra-High Molecular Weight Polyethylene for Total Joint Replacement  

E-Print Network (OSTI)

analysis of hylamer and polyethylene bearings from retrieved1995). Stresses in polyethylene components of contemporaryof cross-linked polyethylene materials for orthopaedic

Atwood, Sara Anne

2010-01-01T23:59:59.000Z

150

Determination of Migration Parameters for Volatile Organic Compounds in Polyethylene Terephthalate and Nylon 6 by Dynamic Permeation Cell Method  

E-Print Network (OSTI)

Determination of Migration Parameters for Volatile Organic Compounds in Polyethylene Terephthalate, such as low-density polyethylene (LDPE), high-density polyethylene (HDPE), and polypropylene (PP); however

Heller, Barbara

151

Crystallization of polyethylene by modified weighted density approximation(MWDA)  

E-Print Network (OSTI)

In this article, we use the modified weighted density approximation to study the crystallization of polyethylene. We also use a direct correlation function of polyethylene based on RISM theory. The free energy of a polyethylene is calculated using density functional theory. The crystallization and solid and liquid density are calculated and finally compared with the prism simulation and experimental results. That shown the result obtained by MWDA is in better agreement, compared with the experimental result than the prism.

Razeghizadeh, Alireza; Lavafpour, Farhad

2015-01-01T23:59:59.000Z

152

Crystallization of polyethylene by modified weighted density approximation(MWDA)  

E-Print Network (OSTI)

In this article, we use the modified weighted density approximation to study the crystallization of polyethylene. We also use a direct correlation function of polyethylene based on RISM theory. The free energy of a polyethylene is calculated using density functional theory. The crystallization and solid and liquid density are calculated and finally compared with the prism simulation and experimental results. That shown the result obtained by MWDA is in better agreement, compared with the experimental result than the prism.

Alireza Razeghizadeh; Vahdat Rafee; Farhad Lavafpour

2015-02-07T23:59:59.000Z

153

Continuous Processing of High Thermal Conductivity Polyethylene Fibers and Sheets  

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

Project to develop and validate a continuous manufacturing process for polyethylene fibers and sheets yielding a thermal conductivity value greater than 60 W/m.K.

154

Photo-oxidation and biodegradation of Polyethylene nanocomposites.  

E-Print Network (OSTI)

??Polyethylene (PE) is widely used in packaging and agricultural industries because of its low cost and unique combination of properties such as high strength, light… (more)

Kumanayaka, T

2010-01-01T23:59:59.000Z

155

Capacitive sensor technology for polyethylene pipe fault detection.  

E-Print Network (OSTI)

??This work develops a Finite Element Analysis simulation to determine if capacitive sensors can be used to detect defects in polyethylene gas distribution pipes. Currently,… (more)

Kirby, Travis W.

2009-01-01T23:59:59.000Z

156

Typical Clothing Ensemble Insulation Levels for Sixteen Body Parts  

E-Print Network (OSTI)

Thermal Comfort.1994 CLO Insulation Levels For Sixteen Bodya mesh arm chair whose insulation level was measured. FigureExperimental Conditions. CLO Insulation Levels For Sixteen

Lee, Juyoun; Zhang, Hui; Arens, Edward

2013-01-01T23:59:59.000Z

157

GROUND PLANE INSULATION FAILURE IN THE FIRST TPC SUPERCONDUCTING COIL  

E-Print Network (OSTI)

is WIUUTEO GROUND PLANE INSULATION FAILURE IN THE FIRST TPCOn August 27, 1980, an insulation failure occurred dt-ringby a failure uf ground plane insulation. ACKNOWLEDGMENTS The

Green, M.A.

2010-01-01T23:59:59.000Z

158

Metalized Polyethylene Mulch to Reduce Incidence of Huanglongbing and Improve Growth of New Citrus Plantings  

E-Print Network (OSTI)

7.14 P Metalized Polyethylene Mulch to Reduce Incidence ofNorth, Immokalee, FL, USA Polyethylene mulch was evaluatedUV reflective low density polyethylene mulch metalized with

Croxton, S.; Stansly, P.

2014-01-01T23:59:59.000Z

159

Leaching of antimony from polyethylene terephthalate (PET) bottles into mineral water  

E-Print Network (OSTI)

Leaching of antimony from polyethylene terephthalate (PET) bottles into mineral water Szilvia April 2009 Available online 21 May 2009 Keywords: Antimony Water Leaching Polyethylene terephthalate SODIS The Sb leaching from polyethylene terephthalate (PET) package material into 10 different brands

Short, Daniel

160

Synthesis of Highly Efficient Flame Retardant High-Density Polyethylene Nanocomposites with Inorgano-Layered Double  

E-Print Network (OSTI)

Synthesis of Highly Efficient Flame Retardant High-Density Polyethylene Nanocomposites, Harbin 150080, P. R. China ABSTRACT: High-density polyethylene (HDPE) polymer nanocomposites containing. INTRODUCTION High density polyethylene (HDPE) has good electrical proper- ties, high stiffness, and tensile

Guo, John Zhanhu

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


161

Accepted Manuscript Kinetic modelling of high density polyethylene pyrolysis: Part 2. Reduction of existing  

E-Print Network (OSTI)

Accepted Manuscript Kinetic modelling of high density polyethylene pyrolysis: Part 2. Reduction density polyethylene pyrolysis: Part 2. Reduction of existing detailed mechanism, Polymer Degradation Modelling of High Density PolyEthylene Pyrolysis: Part 2. Reduction of existing detailed mechanism. N

Paris-Sud XI, Université de

162

Sodalite ion exchange in polyethylene oxide oligomer solvents Gina M. Canfield,a  

E-Print Network (OSTI)

Sodalite ion exchange in polyethylene oxide oligomer solvents Gina M. Canfield,a Michael Bizimisb and rare earth ions. Ethylene oxide-based oligomers (polyethylene glycol, polyethylene glycol methyl ether

Latturner, Susan

163

Polyethylene glycol, unique among laxatives, suppresses aberrant crypt foci, by elimination of cells  

E-Print Network (OSTI)

Polyethylene glycol, unique among laxatives, suppresses aberrant crypt foci, by elimination Corpet Abstract Background Polyethylene glycol (PEG), an osmotic laxative, is a very ; Polyethylene Glycols ; pharmacology ; therapeutic use ; Precancerous Conditions ; chemically induced

Paris-Sud XI, Université de

164

Formation of Biomimetic Porous Calcium Phosphate Coatings on Surfaces of Polyethylene/Zinc Stearate Blends  

E-Print Network (OSTI)

Formation of Biomimetic Porous Calcium Phosphate Coatings on Surfaces of Polyethylene/Zinc Stearate phosphate coating, polyethylene Abstract Studies were undertaken investigating improvements presented in this paper concentrated on adding zinc stearate to polyethylene. Important potential benefits

Drelich, Jaroslaw W.

165

Synthesis and elaboration of polyethylene surfaces modified via anionic grafting chemistry  

E-Print Network (OSTI)

) was grafted to polyethylene films using these initiators. Hydrolysis of poly(tert-butyl acrylate) grafted polyethylene films led to a poly(acrylic acid) grafted polyethylene surfaces. Characterization of the grafted films by surface selective techniques...

Bandella, Ashok Krishangopal

2012-06-07T23:59:59.000Z

166

Process for making ceramic insulation  

DOE Patents (OSTI)

A method is provided for producing insulation materials and insulation for high temperature applications using novel castable and powder-based ceramics. The ceramic components produced using the proposed process offers (i) a fine porosity (from nano-to micro scale); (ii) a superior strength-to-weight ratio; and (iii) flexibility in designing multilayered features offering multifunctionality which will increase the service lifetime of insulation and refractory components used in the solid oxide fuel cell, direct carbon fuel cell, furnace, metal melting, glass, chemical, paper/pulp, automobile, industrial heating, coal, and power generation industries. Further, the ceramic components made using this method may have net-shape and/or net-size advantages with minimum post machining requirements.

Akash, Akash (Salt Lake City, UT); Balakrishnan, G. Nair (Sandy, UT)

2009-12-08T23:59:59.000Z

167

Foundation Insulation for Existing Homes  

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

How Do We Retrofit Tough Buildings? Foundation Insulation for Existing Homes Building America Technical Update April 29 & 30, 2013 Patrick H. Huelman Cold Climate Housing Coordinator University of Minnesota Extension Foundation Insulation for Existing Homes * Context - Focused on basements and crawlspaces. - Aimed at cold climates (Climate Zones 6 & 7). - Generally aimed at liquid active walls. * Approach - Managing risks - Current solutions & best practices - Evaluating new approaches * Primary focus is to reduce energy use by 30 to 50% with emphasis on existing homes. * Promote building science solutions using a systems engineering and integrated design approach. * "Do no harm" => must ensure that safety, health, and durability are maintained or improved.

168

Approximating Metal-Insulator Transitions  

E-Print Network (OSTI)

We consider quantum wave propagation in one-dimensional quasiperiodic lattices. We propose an iterative construction of quasiperiodic potentials from sequences of potentials with increasing spatial period. At each finite iteration step the eigenstates reflect the properties of the limiting quasiperiodic potential properties up to a controlled maximum system size. We then observe approximate metal-insulator transitions (MIT) at the finite iteration steps. We also report evidence on mobility edges which are at variance to the celebrated Aubry-Andre model. The dynamics near the MIT shows a critical slowing down of the ballistic group velocity in the metallic phase similar to the divergence of the localization length in the insulating phase.

C. Danieli; K. Rayanov; B. Pavlov; G. Martin; S. Flach

2014-05-06T23:59:59.000Z

169

British Standard Specification for Cable Insulation  

Science Journals Connector (OSTI)

... different types of cables and cords ; and the third, with tests for thickness of insulation and sheath, voltage, ... and sheath, voltage, insulation resistance, spark testing, tinning and armouring. The numerous tables with which the specification ...

1947-02-22T23:59:59.000Z

170

Insulation board and process of making  

DOE Patents (OSTI)

Insulation board capable of bearing a load without significant loss of insulating capacity due to compression, produced by a method wherein the board is made in compliance with specified conditions of time, temperature and pressure.

Nowobilski, Jeffert J. (Orchard Park, NY); Owens, William J. (Kenmore, NY)

1985-01-01T23:59:59.000Z

171

Thermal Insulation at Very Low Temperatures  

Science Journals Connector (OSTI)

24 September 1942 research-article Thermal Insulation at Very Low Temperatures A. H. Cooke R. A. Hull Various methods of insulation have been investigated at temperatures between and 1 degrees K. A simple suspension of artificial silk fibre...

1942-01-01T23:59:59.000Z

172

Systems of Insulation Resistance Continuous Measurement  

Science Journals Connector (OSTI)

In this chapter several methods of continuous measurement of insulation resistance in AC IT systems are described. ... source is explained. Another method of continuous insulation resistance measurement is imposi...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

173

Systems of Insulation Resistance Continuous Measurement  

Science Journals Connector (OSTI)

In this chapter several methods of continuous measurement of insulation resistance in AC IT systems are described. ... source is explained. Another method of continuous insulation resistance measurement is imposi...

Piotr Olszowiec

2014-01-01T23:59:59.000Z

174

Vacuum Insulation for Windows | Department of Energy  

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

evacuated materials-so small that they are invisible-integrated with low-e-coated plastic films. The materials will have better insulation values than vacuum-insulated glass...

175

Basement Insulation Systems- Building America Top Innovation  

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

This Building America Innovations profile describes Building America research on basement insulation, which identifies the wall installation methods and materials that perform best in terms of insulation and water resistance.

176

Degradation of Structural Alloys Under Thermal Insulation  

E-Print Network (OSTI)

Wet thermal insulation may actively degrade steel and stainless steel structures by general corrosion or stress-corrosion cracking. Two different mechanisms of water ingress into insulation are discussed; flooding from external sources...

McIntyre, D. R.

1984-01-01T23:59:59.000Z

177

Fracture mechanics analysis of slow crack growth in polyethylene  

E-Print Network (OSTI)

Slow crack growth in polyethylene is often the limiting factor in long-term service of plastic pipe or other structural applications. A new test method and analysis method was developed to study slow crack growth in polyethylene. Two high density...

Self, Robert Alan

1997-01-01T23:59:59.000Z

178

Chemical compounds and toxicological assessments of drinking water stored in polyethylene terephthalate (PET)  

E-Print Network (OSTI)

Chemical compounds and toxicological assessments of drinking water stored in polyethyleneMS, gas chromatographyemass spectrometry; HDPE, high density polyethylene; HULYs, human blood lymphocytes

Short, Daniel

179

E-Print Network 3.0 - amorphous polyethylene terephthalate Sample...  

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

polyethylene terephthalate Search Powered by Explorit Topic List Advanced Search Sample search results for: amorphous polyethylene terephthalate Page: << < 1 2 3 4 5 > >> 1...

180

E-Print Network 3.0 - acrylonitrile-methoxy polyethylene glycol...  

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

methoxy polyethylene glycol Search Powered by Explorit Topic List Advanced Search Sample search results for: acrylonitrile-methoxy polyethylene glycol Page: << < 1 2 3 4 5 > >> 1...

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

E-Print Network 3.0 - aqueous polyethylene glycol Sample Search...  

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

polyethylene glycol Search Powered by Explorit Topic List Advanced Search Sample search results for: aqueous polyethylene glycol Page: << < 1 2 3 4 5 > >> 1 State and distribution...

182

Eccentricity Error Correction for Automated Estimation of Polyethylene Wear after Total Hip Arthroplasty  

E-Print Network (OSTI)

Eccentricity Error Correction for Automated Estimation of Polyethylene Wear after Total Hip. Wire markers are typically attached to the polyethylene acetabular component of the prosthesis so

St Andrews, University of

183

E-Print Network 3.0 - anionic charge polyethylene Sample Search...  

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

charge polyethylene Search Powered by Explorit Topic List Advanced Search Sample search results for: anionic charge polyethylene Page: << < 1 2 3 4 5 > >> 1 Anionic Effects on...

184

Extensional rheology of shear-thickening fumed silica nanoparticles dispersed in an aqueous polyethylene  

E-Print Network (OSTI)

polyethylene oxide solution Sunilkumar Khandavalli and Jonathan P. Rothsteina) Mechanical and Industrial rheology of fumed silica nanoparticles dispersed in an aqueous polyethylene oxide (PEO) solution

Rothstein, Jonathan

185

Selected Physical Characteristics of Polystyrene/High Density Polyethylene Composites Prepared from Virgin  

E-Print Network (OSTI)

Selected Physical Characteristics of Polystyrene/High Density Polyethylene Composites Prepared from: Mixtures of polystyrene and high density polyethylene were injection molded from recycled and virgin

186

Lipid membrane instability and poration driven by capacitive charging  

E-Print Network (OSTI)

A new model for the interaction of an electric pulse with a lipid membrane is proposed. Using this model we show that when a DC electric pulse is applied to an insulating lipid membrane separating fluids with different conductivities, the capacitive charging current through the membrane drives electrohydrodynamic flow that destabilizes the membrane. The instability is transient and decays as the membrane charges. The bulk conductivity mismatch plays an essential role in this instability because it results in a different rate of charge accumulation on the membrane's physical surfaces. Shearing stresses created by the electric field acting on its own induced free charge are non-zero as long as the charge imbalance exists. Accordingly, the most unstable mode is related to the ratio of membrane charging time and the electrohydrodynamic time.

Jonathan T. Schwalbe; Petia M. Vlahovska; Michael J. Miksis

2010-05-03T23:59:59.000Z

187

OPTIMAL INSULATION DISTRIBUTION OVER A CONDUCTING BODY  

Science Journals Connector (OSTI)

......research-article Articles OPTIMAL INSULATION DISTRIBUTION OVER A CONDUCTING BODY...conducted. Over the rest a given amount of insulation is assumed to be spread. Its pointwise...surroundings. Observe that thickening of the insulation at one point involves thinning elsewhere......

MICHAEL BETWICH

1983-02-01T23:59:59.000Z

188

STATE OF CALIFORNIA ENVELOPE INSULATION; ROOFING; FENESTRATION  

E-Print Network (OSTI)

STATE OF CALIFORNIA ENVELOPE ­ INSULATION; ROOFING; FENESTRATION CEC-CF-6R-ENV-01 (Revised 08/09) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-ENV-01 Envelope ­ Insulation; Roofing to be checked to ensure the mandatory measures have been met. Description of Insulation 1. RAISED FLOOR Material

189

Vacuum-insulated catalytic converter  

DOE Patents (OSTI)

A catalytic converter has an inner canister that contains catalyst-coated substrates and an outer canister that encloses an annular, variable vacuum insulation chamber surrounding the inner canister. An annular tank containing phase-change material for heat storage and release is positioned in the variable vacuum insulation chamber a distance spaced part from the inner canister. A reversible hydrogen getter in the variable vacuum insulation chamber, preferably on a surface of the heat storage tank, releases hydrogen into the variable vacuum insulation chamber to conduct heat when the phase-change material is hot and absorbs the hydrogen to limit heat transfer to radiation when the phase-change material is cool. A porous zeolite trap in the inner canister absorbs and retains hydrocarbons from the exhaust gases when the catalyst-coated substrates and zeolite trap are cold and releases the hydrocarbons for reaction on the catalyst-coated substrate when the zeolite trap and catalyst-coated substrate get hot.

Benson, David K. (Golden, CO)

2001-01-01T23:59:59.000Z

190

Single chain elasticity and thermoelasticity of polyethylene  

E-Print Network (OSTI)

Single-chain elasticity of polyethylene at $\\theta$ point up to 90% of stretching with respect to its contour length is computed by Monte-Carlo simulation of an atomistic model in continuous space. The elasticity law together with the free-energy and the internal energy variations with stretching are found to be very well represented by the wormlike chain model up to 65% of the chain elongation, provided the persistence length is treated as a temperature dependent parameter. Beyond this value of elongation simple ideal chain models are not able to describe the Monte Carlo data in a thermodynamic consistent way. This study reinforces the use of the wormlike chain model to interpret experimental data on the elasticity of synthetic polymers in the finite extensibility regime, provided the chain is not yet in its fully stretched regime. Specific solvent effects on the elasticity law and the partition between energetic and entropic contributions to single chain elasticity are investigated.

John T. Titantah; Carlo Pierleoni; Jean-Paul Ryckaert

2002-09-05T23:59:59.000Z

191

Annealing of single lamella nanoparticles of polyethylene  

E-Print Network (OSTI)

We study the change of the size and structure of freely suspended single lamella nanoparticles of polyethylene during thermal annealing in aqueous solutions. Using small-angle x-ray scattering and cryogenic transmission electron microscopy, it is shown that a doubling of the crystalline lamella sandwiched between two amorphous polymer layers is obtained by annealing the nanoparticles at 125 C. This thickening of the crystalline lamella can be understood in terms of an unlooping of polymer chains within a single nanoparticle. In addition a variation of the annealing temperature from 90 C to 115 C demonstrates that the inverse of the crystalline lamellar thickness increases linearly with the annealing temperatures leading to a recrystallization line in a Gibbs-Thomson graph. Since the nanoparticles consist of about only eight polymer chains, they can be considered as a ideal candidates for the experimental realization of equilibrium polymer crystals.

Christophe N. Rochette; Sabine Rosenfeldt; Katja Henzler; Frank Polzer; Matthias Ballauff; Qiong Tong; Stefan Mecking; Markus Drechsler; Theyencheri Narayanan; Ludger Harnau

2011-07-05T23:59:59.000Z

192

Commercialization of the polyethylene macroencapsulation process  

SciTech Connect

With support from the US Department of Energy Office of Science and Technology (DOE OST) and assistance from Brookhaven National Laboratory (BNL), Envirocare of Utah, Inc. (Envirocare) is commercializing the polyethylene macroencapsulation process. Envirocare, currently the only commercially licensed mixed waste disposal facility in the US, will initially demonstrate the process by treating and disposing up to 227,000 kg (500,000 lbs) of radioactively contaminated lead. This waste, considered mixed due to both radioactive and hazardous constituents, is currently being stored at various sites throughout the DOE complex. Following this initial work for DOE, the process will be available for the treatment of other applicable wastes. Throughout commercialization of this process, BNL has provided Envirocare with technical support for engineering and permitting.

Lageraaen, P.R.; Kalb, P.D. [Brookhaven National Lab., Upton, NY (United States); Hellstrom, G.W.; Vance, J.K. [Envirocare of Utah, Inc., Salt Lake City, UT (United States)

1998-01-01T23:59:59.000Z

193

Commercialization of the polyethylene macroencapsulation process  

SciTech Connect

With support from the US Department of Energy Office of Science and Technology (DOE OST) and assistance from Brookhaven National Laboratory (BNL), Envirocare of Utah, Inc. (Envirocare) is commercializing the polyethylene macroencapsulation process. Envirocare, currently the only commercially licensed mixed waste disposal facility in the US, will initially demonstrate the process by treating and disposing up to 227,000 kg (500,000 lbs) of radioactively contaminated lead. This waste, considered mixed due to both radioactive and hazardous constituents, is currently being stored at various sites throughout the DOE complex. Following this initial work for DOE, the process will be available for the treatment of other applicable wastes. Throughout commercialization of this process, BNL has provided Envirocare with technical support for engineering and permitting.

Lageraaen, P.R.; Kalb, P.D. [Brookhaven National Lab., Upton, NY (United States); Hellstrom, G.W.; Vance, J.K. [Envirocare of Utah, Inc., Salt Lake City, UT (United States)

1996-12-31T23:59:59.000Z

194

Chapter Three - Material Selection for Thermal Insulation  

Science Journals Connector (OSTI)

Abstract This chapter covers the minimum requirements and fundamental concepts relating to the composition, size, dimensions, physical properties, inspection, packaging, and marking of a wide range of thermal insulations for use on pipe and equipment surfaces such as mineral wool insulation, rigid and semi-rigid mineral fiber block and board thermal insulation, mineral blanket and blanket-type pipe insulation, calcium silicate preformed block and pipe section thermal insulation, cellular glass, baked cork, and rigid cellular polyurethane and polyisocyanurate and filler insulation. In addition, vapor barriers, joint sealants, adhesive materials, metallic jacketing, and accessory materials are reviewed. For satisfactory performance, properly installed protective vapor barriers have to be used in low-temperature applications to prevent movement of moisture through or around the insulation towards the colder surface.

Alireza Bahadori

2014-01-01T23:59:59.000Z

195

New and Underutilized Technology: Aerogel Insulation | Department of Energy  

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

Aerogel Insulation Aerogel Insulation New and Underutilized Technology: Aerogel Insulation October 8, 2013 - 2:54pm Addthis The following information outlines key deployment considerations for aerogel insulation within the Federal sector. Benefits Aerogel insulation products displace current insulation materials. The thermal conductivity of aerogel is very low, allowing it to retain insulation properties at a much thinner thickness. Application Aerogel insulation is appropriate for deployment across piping, ducts, and within most building categories. It should be considered in building design, construction, or major renovation. Key Factors for Deployment Aerogel insulations are more expensive than typical insulations. However, they are ideal for special applications, such as translucent wall panels.

196

Magnetically insulated transmission line oscillator  

DOE Patents (OSTI)

A magnetically insulated transmission line oscillator employs self-generated magnetic fields to generate microwave energy. An anode of the oscillator includes slow-wave structures which are formed of a plurality of thin conductive vanes defining cavities therebetween, and a gap is formed between the anode and a cathode of the oscillator. In response to a pulsed voltage applied to the anode and cathode, self-generated magnetic fields arfe produced in a cross-field orientation with respect to the orientation of the electric field between the anode and the cathode. The cross-field magnetic fields insulate the flow of electrons in the gap and confine the flow of electrons within the gap.

Bacon, Larry D. (Albuquerque, NM); Ballard, William P. (Albuquerque, NM); Clark, M. Collins (Albuquerque, NM); Marder, Barry M. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

197

Quantification of branching in model 3-arm star polyethylene Ramnath Ramachandran, Gregory Beaucage*  

E-Print Network (OSTI)

1 Quantification of branching in model 3-arm star polyethylene Ramnath Ramachandran, Gregory-arm star polyethylene molecules is presented. Many commercial polyethylenes have long side branches-density polyethylene (LDPE) is typically a highly branched structure with broad distributions in branch content, branch

Beaucage, Gregory

198

Silica Supported Single-Walled Carbon Nanotubes as a Modifier in Polyethylene Composites  

E-Print Network (OSTI)

Silica Supported Single-Walled Carbon Nanotubes as a Modifier in Polyethylene Composites Neal D. Mc.interscience.wiley.com). ABSTRACT: Composites have been made from single- wall carbon nanotubes in a polyethylene (PE) matrix: additives; composites; conducting polymers; nanocomposites; polyethylene INTRODUCTION Polyethylene (PE

Resasco, Daniel

199

High-Molecular-Weight Polyethylene Glycol Prevents Lethal Sepsis Due to Intestinal Pseudomonas aeruginosa  

E-Print Network (OSTI)

High-Molecular-Weight Polyethylene Glycol Prevents Lethal Sepsis Due to Intestinal Pseudomonas of this study were to test the ability of a high-molecular- weight polyethylene glycol compound, polyethylene: The ability of polyethylene glycol 15­20 to protect the intestinal epi- thelium against the opportunistic

Lee, Ka Yee C.

200

Active membrane having uniform physico-chemically functionalized ion channels  

DOE Patents (OSTI)

The present invention relates to a physicochemically-active porous membrane for electrochemical cells that purports dual functions: an electronic insulator (separator) and a unidirectional ion-transporter (electrolyte). The electrochemical cell membrane is activated for the transport of ions by contiguous ion coordination sites on the interior two-dimensional surfaces of the trans-membrane unidirectional pores. One dimension of the pore surface has a macroscopic length (1 nm-1000 .mu.m) and is directed parallel to the direction of an electric field, which is produced between the cathode and the anode electrodes of an electrochemical cell. The membrane material is designed to have physicochemical interaction with ions. Control of the extent of the interactions between the ions and the interior pore walls of the membrane and other materials, chemicals, or structures contained within the pores provides adjustability of the ionic conductivity of the membrane.

Gerald, II, Rex E; Ruscic, Katarina J; Sears, Devin N; Smith, Luis J; Klingler, Robert J; Rathke, Jerome W

2012-09-24T23:59:59.000Z

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Membrane magic  

SciTech Connect

The Kansas Power and Light Co.'s La Cyne generating station has found success with membrane filtration water pretreatment technology. The article recounts the process followed in late 2004 to install a Pall Aria 4 microfilter in Unit 1 makeup water system at the plant to produce cleaner water for reverse osmosis feed. 2 figs., 2 photos.

Buecker, B. [Kansas City Power and Light Co. (United States)

2005-09-01T23:59:59.000Z

202

Membrane Separator for Redox Flow Batteries that Utilize Anion Radical Mediators.  

SciTech Connect

A Na + ion conducting polyethylene oxide membrane is developed for an organic electrolyte redox flow battery that utilizes anion radical mediators. To achieve high specific ionic conductivity, tetraethyleneglycol dimethylether (TEGDME) is used as a plasticizer to reduce crystallinity and increase the free volume of the gel film. This membrane is physically and chemically stable in TEGDME electrolyte that contains highly reactive biphenyl anion radical mediators.

Delnick, Frank M.

2014-10-01T23:59:59.000Z

203

High density polyethylene (HDPE) containers as an alternative to polyethylene terephthalate (PET) bottles for solar disinfection of drinking water in northern region, Ghana  

E-Print Network (OSTI)

The purpose of this study is to investigate the technical feasibility of high density polyethylene (HDPE) containers as an alternative to polyethylene terephthalate (PET) bottles for the solar disinfection of drinking water ...

Yazdani, Iman

2007-01-01T23:59:59.000Z

204

Types of Insulation | Department of Energy  

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

Types of Insulation Types of Insulation Types of Insulation May 30, 2012 - 11:43am Addthis In existing homes, cellulose (here) or other loose-fill materials can be installed in building cavities through holes drilled (usually) on the exterior of the house. After the installation, the holes are plugged and finish materials replaced. | Photo courtesy of Cellulose Insulation Manufacturers Association. In existing homes, cellulose (here) or other loose-fill materials can be installed in building cavities through holes drilled (usually) on the exterior of the house. After the installation, the holes are plugged and finish materials replaced. | Photo courtesy of Cellulose Insulation Manufacturers Association. Icynene plastic insulation blown into the walls of a home near Denver. Icynene fills cracks and crevices and adheres to the framing. | Photo courtesy of Paul Norton, NREL.

205

Critical insulation thickness for maximum entropy generation  

Science Journals Connector (OSTI)

Critical insulation thickness is known to refer to the insulation thickness that maximises the rate of heat transfer in cylindrical and spherical systems. The same analogy is extended to the rate of entropy generation in the present study. The possible critical insulation thickness that yields a maximum rate of entropy generation is investigated. Entropy generation is related to heat transfer through and temperature distribution within the insulation material. It is found that there exists a critical insulation thickness for maximising the rate of entropy generation that is a function of the Bi number and the surface to ambient temperature ratio. The solution of such critical thickness is formulated analytically for both cylindrical and spherical geometries. It is also found that the critical insulation thickness for the rate of entropy generation does not coincide with that for the rate of heat transfer.

Ahmet Z. Sahin

2012-01-01T23:59:59.000Z

206

Chapter One - Design and Application of Thermal Insulation  

Science Journals Connector (OSTI)

Abstract This chapter covers the minimum requirements for thermal insulation of pipework, vessels, tanks, and other equipment. It is aimed at thermal insulation usage in the oil, gas, petrochemical, and other similar industries mainly for refineries, chemical, petrochemical, and natural gas processing plants. The chapter explains the fundamental requirements for insulation systems, including insulation materials of sufficient quality and thicknesses, weatherproofing, and finishing. Also, there is discussion on the design issues related to thermal insulation, including selection of the thermal insulation system, corrosion under thermal insulation, and the general applications of insulation. In addition, the characteristics and selection of insulation and accessory materials are presented.

Alireza Bahadori

2014-01-01T23:59:59.000Z

207

Insulation and Air Sealing Products and Services | Department of Energy  

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

You are here You are here Home » Insulation and Air Sealing Products and Services Insulation and Air Sealing Products and Services May 30, 2012 - 9:52am Addthis Insulation and Air Sealing Products and Services Use the following links to get product information and locate professional services for insulation and air sealing. Product Information Cellulose Facts Cellulose Insulation Manufacturers Association Information on cellulose insulation, including technical bulletins, special reports, and video Concrete Masonry Units Concrete Homes-Portland Cement Association Describes construction methods that use concrete block systems Cotton Insulation (PDF) Build it Green Information on cotton insulation and a comparison to conventional insulation Expanded Polystyrene Molders Association

208

Exciton self-trapping in bulk polyethylene  

E-Print Network (OSTI)

We studied theoretically the behavior of an injected electron-hole pair in crystalline polyethylene. Time-dependent adiabatic evolution by ab-initio molecular dynamics simulations show that the pair will become self-trapped in the perfect crystal, with a trapping energy of about 0.38 eV, with formation of a pair of trans-gauche conformational defects, three C$_2$H$_4$ units apart on the same chain. The electron is confined in the inter-chain pocket created by a local, 120$^\\circ$ rotation of the chain between the two defects, while the hole resides on the chain and is much less bound. Despite the large energy stored in the trapped excitation, there does not appear to be a direct non-radiative channel for electron-hole recombination. This suggests that intrinsic self-trapping of electron-hole pairs inside the ideal quasi-crystalline fraction of PE might not be directly relevant for electrical damage in high-voltage cables.

D. Ceresoli; M. C. Righi; E. Tosatti; S. Scandolo; G. Santoro; S. Serra

2005-07-13T23:59:59.000Z

209

Melt Strength Behaviour of Polyethylenes and Polyethylene Blends and its Relation to Bubble Stability in Film Blowing  

Science Journals Connector (OSTI)

Melt strength data are presented on the three major classes of commercial polyethylenes (LDPE, LLDPE and HDPE) and some of their binary blend systems. Melt strength was assessed from uniaxial tensile experiments ...

A. Ghijsels; J. J. S. M. Ente; J. Raadsen

1988-01-01T23:59:59.000Z

210

Impact of the insulation materials’ features on the determination of optimum insulation thickness  

Science Journals Connector (OSTI)

The optimum thickness of the building envelope insulation materials depends on a large number of ... used in the building, and specifically the insulation ones, are included in the process to calculate the optimu...

Jérôme Barrau; Manel Ibanez; Ferran Badia

2014-07-01T23:59:59.000Z

211

Aerogel Impregnated Polyurethane Piping and Duct Insulation  

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

Aerogel Impregnated Polyurethane Aerogel Impregnated Polyurethane Piping and Duct Insulation David M. Hess InnoSense LLC david.hess@innosense.us, 310-530-2011 April 4, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: Develop an efficient insulation system that will adhere to housing duct work and pipe structures while conforming to complex geometries. New insulations must increase the R-value of existing materials and be easy to apply or retrofit to existing structures.

212

Floating insulated conductors for heating subsurface formations  

DOE Patents (OSTI)

A heating system for a subsurface formation includes a conduit located in a first opening in the subsurface formation. Three electrical conductors are located in the conduit. A return conductor is located inside the conduit. The return conductor is electrically coupled to the ends of the electrical conductors distal from the surface of the formation. Insulation is located inside the conduit. The insulation electrically insulates the three electrical conductors, the return conductor, and the conduit from each other.

Burns, David; Goodwin, Charles R.

2014-07-29T23:59:59.000Z

213

Thermal insulation by heat resistant polymers.  

E-Print Network (OSTI)

??Internal insulation in a solid rocket motor is a layer of heat-barrier material placed between the internal surface of the case and the propellant. The… (more)

Ahmed, Ashraf Fathy

2009-01-01T23:59:59.000Z

214

Install Removable Insulation on Valves and Fittings  

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

This tip sheet on installing removable insulation on valves and fittings provides how-to advice for improving steam systems using low-cost, proven practices and technologies.

215

Conductivity measurement on thick insulating plaque samples.  

E-Print Network (OSTI)

?? The conductivity is one of the main properties of HVDC cable insulation materials and needs to be evaluated carefully. Since measurement on cables is… (more)

Huldén, Pierre

2014-01-01T23:59:59.000Z

216

Heat insulation layer of polymer composite material  

Science Journals Connector (OSTI)

A new heat insulation layer polymer composite material is developed, within whose composition there is foam polyurethane and basaltoplastic. Results are provided for...

G. P. Ponomareva; A. A. Artemenko; O. M. Sladkov…

2010-05-01T23:59:59.000Z

217

Topological Insulators in Three Dimensions  

Science Journals Connector (OSTI)

We study three-dimensional generalizations of the quantum spin Hall (QSH) effect. Unlike two dimensions, where a single Z2 topological invariant governs the effect, in three dimensions there are 4 invariants distinguishing 16 phases with two general classes: weak (WTI) and strong (STI) topological insulators. The WTI are like layered 2D QSH states, but are destroyed by disorder. The STI are robust and lead to novel “topological metal” surface states. We introduce a tight binding model which realizes the WTI and STI phases, and we discuss its relevance to real materials, including bismuth.

Liang Fu; C. L. Kane; E. J. Mele

2007-03-07T23:59:59.000Z

218

Low-cost exterior insulation process and structure  

DOE Patents (OSTI)

A low-cost exterior insulation process of stacking bags of insulating material against a wall and covering them with wire mesh and stucco provides a durable structure with good insulating value.

Vohra, Arun (Bethesda, MD)

1999-01-01T23:59:59.000Z

219

Low-cost exterior insulation process and structure  

DOE Patents (OSTI)

A low-cost exterior insulation process of stacking bags of insulating material against a wall and covering them with wire mesh and stucco provides a durable structure with good insulating value. 2 figs.

Vohra, A.

1999-03-02T23:59:59.000Z

220

Modular cell biology: retroactivity and insulation Domitilla Del Vecchio1,  

E-Print Network (OSTI)

Modular cell biology: retroactivity and insulation Domitilla Del Vecchio1, *, Alexander J Ninfa2 a remarkable insulation property, due to the fast timescales of the phosphorylation and dephosphorylation: computational methods; metabolic and regulatory networks Keywords: feedback; insulation; modularity; singular

Sontag, Eduardo

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

APPLIED PHYSICS REVIEWS Semi-insulating semiconductor heterostructures: Optoelectronic  

E-Print Network (OSTI)

APPLIED PHYSICS REVIEWS Semi-insulating semiconductor heterostructures: Optoelectronic properties of optoelectronic properties of and uses for semi-insulating semiconductor heterostructures and thin films. The principal optical and optoelectronic properties of semi-insulating epilayers and heterostructures

Nolte, David D.

222

ENVIRONMENTALLY FRIENDLY PROCESSING OF POLYURETHANE FOAM FOR THERMAL INSULATION  

E-Print Network (OSTI)

ENVIRONMENTALLY FRIENDLY PROCESSING OF POLYURETHANE FOAM FOR THERMAL INSULATION CHANJOONG KIM was proposed and evaluated for the application of thermal insulation. For the production of polyurethane foam correspondence should be sent. #12;Key Words: Foam; Polyurethane; Thermal insulation; Nucleation; Growth

Kim, Chanjoong

223

Limitations of High-Voltage Insulation  

Science Journals Connector (OSTI)

... materials such as impregnated paper. The important electrical properties of the materials used for the insulation of high-voltage circuits are conductivity and electric strength. The conductivity measures the ability ... a million times between themselves, but they are all classified as available for high-voltage insulation.

1938-01-08T23:59:59.000Z

224

Heat Insulation in Electric Power Stations  

Science Journals Connector (OSTI)

... HEAT insulation of pipes, boilers and generating sets, which used to be indicated by the general ... in steam generating plants, it is common experience to find that cracks develop in the insulation on water-cooled furnace walls as the result of: (a) expansion and contraction ...

1940-12-28T23:59:59.000Z

225

Clothing Insulation and Accidental Hypothermia in Youth  

Science Journals Connector (OSTI)

... and climbers in Britain. The effects of exercise, wind and wetting on the thermal insulation of a typical clothing assembly were observed. The clothing examined had been worn by ... ) 0-13 1-00 (b) AN ABBREVIATED TABLE or STANDARD VALUES OF AIR INSULATION (IA)4

L. G. C. PUGH

1966-03-26T23:59:59.000Z

226

Uniform insulation applied-B ion diode  

DOE Patents (OSTI)

An applied-B field extraction ion diode has uniform insulation over an anode surface for increased efficiency. When the uniform insulation is accomplished with anode coils, and a charge-exchange foil is properly placed, the ions may be focused at a point on the z axis.

Seidel, David B. (Albuquerque, NM); Slutz, Stephen A. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

227

Kingspan Insulated Panels: Order (2013-CE-5353)  

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

DOE ordered Kingspan Insulated Panels, Inc. to pay a $8,000 civil penalty after finding Kingspan Insulated Panels had failed to certify that any basic models of walk-in cooler and freezer components comply with the applicable energy conservation standards.

228

Morphological, rheological and electrochemical studies of Poly(ethylene  

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

Morphological, rheological and electrochemical studies of Poly(ethylene Morphological, rheological and electrochemical studies of Poly(ethylene oxide) electrolytes containing fumed silica nanoparticles Title Morphological, rheological and electrochemical studies of Poly(ethylene oxide) electrolytes containing fumed silica nanoparticles Publication Type Journal Article Year of Publication 2004 Authors Xie, Jiangbing, Robert G. Duan, Yong Bong Han, and John B. Kerr Journal Solid State Ionics Volume 175 Pagination 755-758 Keywords composite polymer electrolytes, nanoparticles, poly(ethylene oxide), rheology Abstract In this paper, the rheology and crystallization of composite Poly(ethylene oxide) (PEO) electrolytes were studied by dynamic mechanical analysis, DSC and polarized light microscopy. The effects of fumed silica nanoparticles on the conductivities of the polymer electrolytes at temperatures above and below their melting points were measured and related to their rheology and crystallization behavior, respectively. The electrolyte/electrode interfacial properties and cycling performances of the composite polymer electrolytes in Li/Li cells are also discussed. The measured electrochemical properties were found to depend heavily on the operational environments and sample processing history.

229

ITER Central Solenoid Coil Insulation Qualification  

SciTech Connect

An insulation system for ITER Central Solenoid must have sufficiently high electrical and structural strength. Design efforts to bring stresses in the turn and layer insulation within allowables failed. It turned out to be impossible to eliminate high local tensile stresses in the winding pack. When high local stresses can not be designed out, the qualification procedure requires verification of the acceptable structural and electrical strength by testing. We built two 4x4 arrays of the conductor jacket with two options of the CS insulation and subjected the arrays to 1.2 million compressive cycles at 60 MPa and at 76 K. Such conditions simulated stresses in the CS insulation. We performed voltage withstand tests and after end of cycling we measured the breakdown voltages between in the arrays. After that we dissectioned the arrays and studied micro cracks in the insulation. We report details of the specimens preparation, test procedures and test results.

Martovetsky, Nicolai N [ORNL] [ORNL; Mann Jr, Thomas Latta [ORNL] [ORNL; Miller, John L [ORNL] [ORNL; Freudenberg, Kevin D [ORNL] [ORNL; Reed, Richard P [Cryogenic Materials, Inc.] [Cryogenic Materials, Inc.; Walsh, Robert P [Florida State University] [Florida State University; McColskey, J D [National Institute of Standards and Technology (NIST), Boulder] [National Institute of Standards and Technology (NIST), Boulder; Evans, D [Advanced Cryogenic Materials] [Advanced Cryogenic Materials

2010-01-01T23:59:59.000Z

230

ITER CENTRAL SOLENOID COIL INSULATION QUALIFICATION  

SciTech Connect

An insulation system for ITER Central Solenoid must have sufficiently high electrical and structural strength. Design efforts to bring stresses in the turn and layer insulation within allowables failed. It turned out to be impossible to eliminate high local tensile stresses in the winding pack. When high local stresses can not be designed out, the qualification procedure requires verification of the acceptable structural and electrical strength by testing. We built two 4 x 4 arrays of the conductor jacket with two options of the CS insulation and subjected the arrays to 1.2 million compressive cycles at 60 MPa and at 76 K. Such conditions simulated stresses in the CS insulation. We performed voltage withstand tests and after end of cycling we measured the breakdown voltages between in the arrays. After that we dissectioned the arrays and studied micro cracks in the insulation. We report details of the specimens preparation, test procedures and test results.

Martovetsky, N N; Mann, T L; Miller, J R; Freudenberg, K D; Reed, R P; Walsh, R P; McColskey, J D; Evans, D

2009-06-11T23:59:59.000Z

231

Building Technologies Office: Vacuum Insulation Panels Research Project  

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

Vacuum Insulation Vacuum Insulation Panels Research Project to someone by E-mail Share Building Technologies Office: Vacuum Insulation Panels Research Project on Facebook Tweet about Building Technologies Office: Vacuum Insulation Panels Research Project on Twitter Bookmark Building Technologies Office: Vacuum Insulation Panels Research Project on Google Bookmark Building Technologies Office: Vacuum Insulation Panels Research Project on Delicious Rank Building Technologies Office: Vacuum Insulation Panels Research Project on Digg Find More places to share Building Technologies Office: Vacuum Insulation Panels Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Appliances Research Building Envelope Research Windows, Skylights, & Doors Research

232

Building America Expert Meeting Report: Interior Insulation Retrofit...  

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

Interior Insulation Retrofit of Mass Masonry Wall Assembliesessment of risk factors for premature building deterioration due to interior insulation retrofits, and methods to reduce...

233

Foundation Insulation for Existing Homes | Department of Energy  

Energy Savers (EERE)

Foundation Insulation for Existing Homes Foundation Insulation for Existing Homes This presentation was delivered at the U.S. Department of Energy Building America Technical Update...

234

Journal Article: Graphene physics and insulator-metal transition...  

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

Graphene physics and insulator-metal transition in compressed hydrogen Citation Details Title: Graphene physics and insulator-metal transition in compressed hydrogen Authors:...

235

Sensitivity of forced air distribution system efficiency to climate, duct location, air leakage and insulation  

E-Print Network (OSTI)

Location, Air Leakage and Insulation Iain S. Walker Energy4 Duct Insulation, Location and Leakageinsulation

Walker, Iain

2001-01-01T23:59:59.000Z

236

Friction and Wear Behavior of Ultrahigh Molecular Weight Polyethylene as a Function of Crystallinity in the Presence of the  

E-Print Network (OSTI)

Friction and Wear Behavior of Ultrahigh Molecular Weight Polyethylene as a Function: In this study, the friction and wear behavior of ultrahigh molecular weight polyethylene (UHMWPE) were evaluated Words: ultrahigh molecular weight polyethylene (UHMWPE), crystallinity, friction, wear, phospholipid

Lin, Zhiqun

237

Periodic deviations about the Schottky line for polyethylene  

E-Print Network (OSTI)

feels tnat the data taken 'cy Samson is more representative of electrical conauction from plane elec+rodes through polyethylene and has used this da+a as a starting point for further research. In reviewing S"mson's data, it was noted that nis I/2...(x', ) and the theoretical value of . I in eouation (+), we ootain a graph for log J versus 0 . , 1/; 1'his theoretical curve for polyethylene is shown i n "igure 5. FIGURE 4 TRANSMI S SION COEFFICIE NT 6 10 E' 100 -1. 0 LOG [D(E)/ D(0)] = x F = ~ 1 FIGURE 5...

Davis, Michael Kent

1967-01-01T23:59:59.000Z

238

The effect of pressure upon the melting transition of polyethylene  

E-Print Network (OSTI)

THE EFFECT OF PRESSURE UPON THE MELTING TRANSITION OF POLYETHYLENE o m vS n Z 8 i c6 C 0 A Thesis By George Joseph Nros Approved as to style and content by: C a rman o Comm ttee (Head of Department) August 1961 ACKNOWLEDGEMENT... of the melting transition temperature of polyethylene was found to be linear for samples which have been annealed. This dependence was found to conform to the Clausius-Clapeyron equation and this equation was used to obtain values for the change in specific...

Mroz, George Joseph

1961-01-01T23:59:59.000Z

239

Electrical aging of stator insulation of low voltage rotating machines supplied by inverters  

SciTech Connect

Nowadays, use of inverters for speed variation of low voltage motors becomes more and more usual. The most common technology for this kind of apparatus uses the Pulse Width Modulation (PWM). It is characterized by a square voltage shape with short rise and fall times. In order to insure the quality of turn to ground insulation submitted to these constraints, a study on the aging of Polyethylene terephthalate (Mylar{trademark}) has been undertaken. Influence of rise and fall times, frequency and voltage magnitude has been investigated for time duration up to 1,000 hours. To realize a good voltage application, samples were previously metalized. Two different behaviors according to the rise time and magnitude are observed. For long rise and fall times, changes in the capacity values are obtained although, for smaller rise or fall times, a degradation of the metalized electrode appears. A surface charge generation process is discussed to explain this phenomena.

Bellomo, J.P.; Lebey, T. [Lab. Genie Electrique de Toulouse (France); Oraison, J.M.; Peltier, F. [Leroy-Somer, Angouleme (France)

1996-12-31T23:59:59.000Z

240

E-Print Network 3.0 - alumina-on-polyethylene bearing surfaces...  

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

on-polyethylene bearing surfaces Search Powered by Explorit Topic List Advanced Search Sample search results for: alumina-on-polyethylene bearing surfaces Page: << < 1 2 3 4 5 > >>...

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Coextruded Polyethylene and Wood-Flour Composite: Effect of Shell Thickness, Wood Loading, and Core  

E-Print Network (OSTI)

Coextruded Polyethylene and Wood-Flour Composite: Effect of Shell Thickness, Wood Loading, and Core recycled polyethylene and wood-flour composites with core­shell structure were manufactured using a pilot

242

PEGylated poly(ethylene imine) as a copolymer for gene delivery from hyaluronic acid hydrogels  

E-Print Network (OSTI)

compatibility of poly(ethylene imine) for lung application:Suh H, Park JS. Effect of poly (ethylene glycol) grafting onet al. PEGylation of Poly(ethylene imine) Affects Stability

Siegman, Shayne Nicholas

2014-01-01T23:59:59.000Z

243

Excavationless Exterior Foundation Insulation Field Study  

SciTech Connect

Building science research supports installing exterior (soil side) foundation insulation as the optimal method to enhance the hygrothermal performance of new homes. With exterior foundation insulation, water management strategies are maximized while insulating the basement space and ensuring a more even temperature at the foundation wall. However, such an approach can be very costly and disruptive when applied to an existing home, requiring deep excavation around the entire house. The NorthernSTAR Building America Partnership team implemented an innovative, minimally invasive foundation insulation upgrade technique on an existing home. The approach consisted of using hydrovac excavation technology combined with a liquid insulating foam. The team was able to excavate a continuous 4" wide by 4' to 5' deep trench around the entire house, 128 linear feet, except for one small part under the stoop that was obstructed with concrete debris. The combination pressure washer and vacuum extraction technology also enabled the elimination of large trenches and soil stockpiles normally produced by backhoe excavation. The resulting trench was filled with liquid insulating foam, which also served as a water-control layer of the assembly. The insulation was brought above grade using a liquid foam/rigid foam hybrid system and terminated at the top of the rim joist. Cost savings over the traditional excavation process ranged from 23% to 50%. The excavationless process could result in even greater savings since replacement of building structures, exterior features, utility meters, and landscaping would be minimal or non-existent in an excavationless process.

Schirber, T.; Mosiman, G.; Ojczyk, C.

2014-10-01T23:59:59.000Z

244

SUPPORTED DENSE CERAMIC MEMBRANES FOR OXYGEN SEPARATION  

SciTech Connect

Mixed-conducting membranes have the ability to conduct oxygen with perfect selectivity at elevated temperatures, which makes them an extremely attractive alternative for oxygen separation and membrane reactor applications. The ability to reliably fabricate these membranes in thin or thick films would enable solid-state divisional limitations to be minimized, thus providing higher oxygen flux. Based on that motivation, the overall objective for this project is to develop and demonstrate a strategy for the fabrication of supported Wick film ceramic mixed conducting membranes, and improve the understanding of the fundamental issues associated with reliable fabrication of these membranes. The project has focused on the mixed-conducting ceramic composition SrCo{sub 0.5}FeO{sub x} because of its superior permeability and stability in reducing atmospheres. The fabrication strategy employed involves the deposition of SrCo{sub 0.5}FeO{sub x} thick films onto porous supports of the same composition. In the second year of this project, we completed characterization of the sintering and phase behavior of the porous SrCo{sub 0.5}FeO{sub x} supports, leading to a standard support fabrication methodology. Using a doctor blade method, pastes made from aerosol-derived SrCo{sub 0.5}FeO{sub x} powder dispersed with polyethylene glycol were applied to the supports, and the sintering behavior of the thick film membranes was examined in air and nitrogen atmospheres. It has been demonstrated that the desired crystalline phase content can be produced in the membranes, and that the material in the membrane layer can be highly densified without densifying the underlying support. However, considerable cracking and opening of the film occurred when films densified to a high extent. The addition of MgO into the SrCo{sub 0.5}FeO{sub x} supports was shown to inhibit support sintering so that temperatures up to 1300 C, where significant liquid formation occurs, could be used for film sintering. This successfully reduced cracking, however the films retained open porosity. The investigation of this concept will be continued in the final year of the project. Investigation of a metal organic chemical vapor deposition (MOCVD) method for defect mending in dense membranes was also initiated. An appropriate metal organic precursor (iron tetramethylheptanedionate) was identified whose deposition can be controlled by access to oxygen at temperatures in the 280-300 C range. Initial experiments have deposited iron oxide, but only on the membrane surface; thus refinement of this method will continue.

Timothy L. Ward

2000-06-30T23:59:59.000Z

245

Membrane-patch Excision  

Science Journals Connector (OSTI)

Mechanical manipulation of the cell using glass micropipettes that leads to the extraction of a narrow region of cell membrane. The excision can lead to an isolated membrane patch in which the side of the membran...

2009-01-01T23:59:59.000Z

246

Oxygen Transport Ceramic Membranes  

SciTech Connect

The present quarterly report describes some of the investigations on the structural properties of dense OTM bars provided by Praxair and studies on newer composition of Ti doped Ti-substituted perovskites, La{sub 0.7}Sr{sub 0.3}Mn{sub 1-x}Ti{sub x}O{sub 3}, with 0 {le} x {le} 0.20, were investigated by neutron diffraction, magnetization, electric resistivity, and magnetoresistance (MR) measurements. All samples show a rhombohedral structure (space group R3C) from 10 K to room temperature. At room temperature, the cell parameters a, c and the unit cell volume increase with increasing Ti content. However, at 10 K, the cell parameter a has a maximum value for x = 0.10, and decreases for x > 0.10, while the unit cell volume remains nearly constant for x > 0.10. The average (Mn,Ti)-O bond length increases up to x = 0.15, and the (Mn,Ti)-O-(Mn,Ti) bond angle decreases with increasing Ti content to its minimum value at x = 0.15 at room temperature. Below the Curie temperature TC, the resistance exhibits metallic behavior for the x {le} 0.05 samples. A metal (semiconductor) to insulator transition is observed for the x {ge} 0.10 samples. A peak in resistivity appears below TC for all samples, and shifts to a lower temperature as x increases. The substitution of Mn by Ti decreases the 2p-3d hybridization between O and Mn ions, reduces the bandwidth W, and increases the electron-phonon coupling. Therefore, the TC shifts to a lower temperature and the resistivity increases with increasing Ti content. A field-induced shift of the resistivity maximum occurs at x {le} 0.10 compounds. The maximum MR effect is about 70% for La{sub 0.7}Sr{sub 0.3}Mn{sub 0.8}Ti{sub 0.2}O{sub 3}. The separation of TC and the resistivity maximum temperature T{sub {rho},max} enhances the MR effect in these compounds due to the weak coupling between the magnetic ordering and the resistivity as compared with La{sub 0.7}Sr{sub 0.3}MnO{sub 3}. The bulk densities of the membranes were determined using the Archimedes method. The bulk density was 5.029 and 5.57 g/cc for LSFT and dual phase membranes, respectively. The microstructure of the dual phase membrane was analyzed using SEM. It is evident from the micrograph that the microstructure is composed of dual phases. The dense circular regions are enclosed by the less dense, continuous phase which accommodates most of the pores. The pores are normally aggregated and found clustered along the dense regions where as the dense regions do not have pores. Upon closer observation of the micrograph it is revealed that the dense region has a clear circular cleavage or crack as their boundary. The circular cleavage clearly encompasses a dense region and which consists of no pore or any flaw that is visible. The size distribution of the dense, discontinuous regions is varying from 5 to 20 {micro}m with a D{sub 50} of 15 {micro}m. The grain size distribution was estimated from the micrographs using image analysis and a unimodal distribution of grains was observed with an average grain size of 1.99 {micro}m. The chemical compositions of the membranes were analyzed using EDS analysis and no other impurities were observed. The XRD analysis was carried out for the membranes and the phase purity was confirmed. The fracture toughness of LSFT membranes at room temperature has to be calculated using the Vickers indentation method. An electrochemical cell has been designed and built for measurements of the ionic conductivity by the use of blocking electrodes. Preliminary measurements on La{sub 0.2}Sr{sub 0.8}Fe{sub 0.55}Ti{sub 0.45}O{sub 3-{delta}} are reported. Modifications to the apparatus to improve the data quality have been completed. Electron microscopy studies of the origin of the slow kinetics on reduction of ferrites have been initiated. A series of isotope transients under air separation mode (small gradient) were completed on the membrane of LSCrF-2828 at 900 C. Low pO{sub 2} atmospheres based on with CO-CO{sub 2} mixtures have also been admitted to the delivery side of the LSCrF-2828 membrane to produce the gradient

S. Bandopadhyay; T. Nithyanantham; X.-D Zhou; Y-W. Sin; H.U. Anderson; Alan Jacobson; C.A. Mims

2005-05-01T23:59:59.000Z

247

Polyethylene composites containing a phase change material having a C14 straight chain hydrocarbon  

DOE Patents (OSTI)

A composite useful in thermal energy storage, said composite being formed of a polyethylene matrix having a straight chain alkyl hydrocarbon incorporated therein, said polyethylene being crosslinked to such a degree that said polyethylene matrix is form stable and said polyethylene matrix is capable of absorbing at least 10% by weight of said straight chain alkyl hydrocarbon; the composite is useful in forming pellets or sheets having thermal energy storage characteristics.

Salyer, Ival O. (Dayton, OH)

1987-01-01T23:59:59.000Z

248

Insulation failure assessment under random energization overvoltages  

SciTech Connect

This paper offers a new simple approach to the evaluation of the risk of failure of external insulation in view of their known probabilistic nature. This is applied to EHV transmission systems subjected to energization overvoltages. The randomness, both in the applied stresses and insulation`s withstand characteristics are numerically simulated and then integrated to assess the risk of failure. Overvoltage control methods are accounted for, such as the use of pre-insertion breaker resistors, series capacitive compensation, and the installation of shunt reactors.

Mahdy, A.M.; Anis, H.I. [Cairo Univ. (Egypt)] [Cairo Univ. (Egypt); El-Morshedy, A. [Faculty of Science for Girls, Dammam (Saudi Arabia)] [Faculty of Science for Girls, Dammam (Saudi Arabia)

1996-03-01T23:59:59.000Z

249

Electrical Strength of Multilayer Vacuum Insulators  

SciTech Connect

The electrical strength of vacuum insulators is a key constraint in the design of particle accelerators and pulsed power systems. Vacuum insulating structures assembled from alternating layers of metal and dielectric can result in improved performance compared to conventional insulators, but previous attempts to optimize their design have yielded seemingly inconsistent results. Here, we present two models for the electrical strength of these structures, one assuming failure by vacuum arcing between adjacent metal layers and the other assuming failure by vacuum surface flashover. These models predict scaling laws which are in agreement with the experimental data currently available.

Harris, J R; Kendig, M; Poole, B; Sanders, D M; Caporaso, G J

2008-07-01T23:59:59.000Z

250

Is Graphene in Vacuum an Insulator?  

Science Journals Connector (OSTI)

We present evidence, from lattice Monte Carlo simulations of the phase diagram of graphene as a function of the Coulomb coupling between quasiparticles, that graphene in vacuum is likely to be an insulator. We find a semimetal-insulator transition at ?gcrit=1.11±0.06, where ?g?2.16 in vacuum, and ?g?0.79 on a SiO2 substrate. Our analysis uses the logarithmic derivative of the order parameter, supplemented by an equation of state. The insulating phase disappears above a critical number of four-component fermion flavors 4

Joaquín E. Drut and Timo A. Lähde

2009-01-13T23:59:59.000Z

251

Membrane cleaning in membrane bioreactors: A review  

Science Journals Connector (OSTI)

Abstract Membrane bioreactors (MBRs) have been widely used in wastewater treatment and reclamation. Membrane cleaning is an essential part during the operation of \\{MBRs\\} since membrane fouling is an unavoidable problem. In past decades, with the in-depth understanding on membrane fouling, significant advances in membrane cleaning have been achieved. However, a comprehensive review on membrane cleaning in \\{MBRs\\} is still lacking. This paper attempts to critically review the recent developments of membrane cleaning. Firstly, the fouling and cleaning fundamentals are addressed, and then a comprehensive review on physical, chemical, and biological/biochemical cleaning is presented. The procedures of determining proper cleaning protocols for MBR systems are also proposed. Finally, the existing challenges and future research efforts are discussed in order to ensure the development of membrane cleaning toward a more effective and sustainable way in MBRs.

Zhiwei Wang; Jinxing Ma; Chuyang Y. Tang; Katsuki Kimura; Qiaoying Wang; Xiaomeng Han

2014-01-01T23:59:59.000Z

252

Microcomposite Fuel Cell Membranes  

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

Summary of microcomposite fuel cell membrane work presented to the High Temperature Membrane Working Group Meeting, Orlando FL, October 17, 2003

253

Membrane-Transistor Cable  

Science Journals Connector (OSTI)

Membrane-Transistor Cable ... The system is the basis for a development of bioelectronic transducers and for the study of nonlinear phenomena in membrane cables. ...

Marion Rentschler; Peter Fromherz

1998-01-20T23:59:59.000Z

254

Wood plastic composites based on microfibrillar blends of high density polyethylene/poly(ethylene terephthalate)  

E-Print Network (OSTI)

Wood plastic composites based on microfibrillar blends of high density polyethylene January 2010 Keywords: Wood plastic composites Poly(ethylene terephthalate) Polyethylene Extrusion a b into wood plastic composites through a two-step reactive extrusion technology. Wood flour was added into pre

255

MEASUREMENT OF HEAT TRANSFER DURING DROP-WISE CONDENSATION OF WATER ON POLYETHYLENE  

E-Print Network (OSTI)

MEASUREMENT OF HEAT TRANSFER DURING DROP-WISE CONDENSATION OF WATER ON POLYETHYLENE Gagan Deep distribution of temperature during drop-wise condensation over a polyethylene substrate was measured using on the substrate was simultaneously visualized. Static contact angles of water on polyethylene are measured

Khandekar, Sameer

256

Hypothetical Thermodynamic Properties: The Boiling and Critical Temperatures of Polyethylene and Polytetrafluoroethylene  

E-Print Network (OSTI)

Hypothetical Thermodynamic Properties: The Boiling and Critical Temperatures of Polyethylene value asymptotically approaches TB() ) (1217 ( 246) K for series related to polyethylene by the melting temperature of polyethylene.4,5 In this article, the question of whether the normal boiling tem

Chickos, James S.

257

Creep Analysis of Bamboo High-Density Polyethylene Composites: Effect of Interfacial Treatment and Fiber  

E-Print Network (OSTI)

Creep Analysis of Bamboo High-Density Polyethylene Composites: Effect of Interfacial Treatment of bamboo fiber high-density polyethylene (BF/HDPE) composites was investigated. For single modifier systems, the use of maleic anhydride grafted polyethylene (PE-g-MA) as a coupling agent helped reduce the creep

258

Time-Resolved Small-Angle Neutron Scattering Study of Polyethylene Crystallization from Solution  

E-Print Network (OSTI)

Time-Resolved Small-Angle Neutron Scattering Study of Polyethylene Crystallization from Solution-resolved small-angle neutron scattering (TR-SANS), the crystal- lization kinetics of polyethylene from deuterated of polyethylene crystallization from xylene solutions. One unique feature of this experimentation is that both

Wang, Howard "Hao"

259

Rice Straw Fiber Reinforced High Density Polyethylene Composite: Effect of Coupled Compatibilizating and  

E-Print Network (OSTI)

Rice Straw Fiber Reinforced High Density Polyethylene Composite: Effect of Coupled polyethylene (HDPE) composites were manufactured by extrusion and injection molding. Three compatibilizers compatibilizers, ma- leic anhydride grafted polyethylene and polypropylene (PE-g-MA and PP-g-MA) are considered

260

Leaf Area Distribution of Tomato Plants as Influenced by Polyethylene Mulch  

E-Print Network (OSTI)

Leaf Area Distribution of Tomato Plants as Influenced by Polyethylene Mulch Surface Color Dennis R of polyethylene (plastic) mulch surface color (white versus black) on leaf area distribution of tomato and soil temperatures. These results suggest that the polyethylene mulch surface color can induce changes

Decoteau, Dennis R.

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Mechanical Degradation Onset of Polyethylene Oxide Used as a Hydrosoluble Model Polymer  

E-Print Network (OSTI)

Mechanical Degradation Onset of Polyethylene Oxide Used as a Hydrosoluble Model Polymer Degradation Onset of Polyethylene Oxide Used as a Hydrosoluble Model Polymer for Enhanced Oil Recovery and for both dilute and semi dilute polyethylene oxide aqueous solutions. It reveals that the exponent k

Boyer, Edmond

262

Thermal resistance and phonon scattering at the interface between carbon nanotube and amorphous polyethylene  

E-Print Network (OSTI)

polyethylene Sho Hida a , Takuma Hori a , Takuma Shiga a , James Elliott b , Junichiro Shiomi a,c, a Department dynamics study of heat conduction in carbon nanotube (CNT)/polyethylene (PE) composites. Particular across the CNT/polyethylene interfaces ($1 Ã? 10Ã?7 m2 K WÃ?1 ) and a moder- ate but non

Elliott, James

263

Creep Failure and Fracture of Polyethylene in Uniaxial J. M. CRISSMAN and L. J. ZAPAS  

E-Print Network (OSTI)

Creep Failure and Fracture of Polyethylene in Uniaxial Extension J. M. CRISSMAN and L. J. ZAPAS conditions of uniaxial creep the frac- ture of high density polyethylene can be categorized as one of three, this phenomenon is known as dead load fatigue. In the case of polyethylene the ultimate fracture can

264

Semi-Crystalline Polymers Semi-crystalline polymers, such as polyethylene and polypropylene are common  

E-Print Network (OSTI)

Semi-Crystalline Polymers Semi-crystalline polymers, such as polyethylene and polypropylene are common commercial materials used for consumer products. Polyethylene is the most widely used polymer due and processing conditions. Equistar, in Cincinnati, is the largest producer of polyethylene in the US and P

Beaucage, Gregory

265

DSC Evidence for Microstructure and Phase Transitions in Polyethylene Melts at High Temperatures  

E-Print Network (OSTI)

DSC Evidence for Microstructure and Phase Transitions in Polyethylene Melts at High Temperatures polyethylenes of types HDPE, LDPE, and LLDPE. DSC data were obtained for a range of heating and cooling rates previous rheology findings of order and high-temperature transitions in polyethylene melts. Introduction

Hussein, Ibnelwaleed A.

266

Primary Radiation Defect Production in Polyethylene and Cellulose Jussi Polvi,* Petri Luukkonen, and Kai Nordlund  

E-Print Network (OSTI)

Primary Radiation Defect Production in Polyethylene and Cellulose Jussi Polvi,* Petri Luukkonen in polyethylene and cellulose were examined using molecular dynamics simulations. The governing reactions in both. Crystalline cellulose was found to be more resistant to radiation damage than crystalline polyethylene

Nordlund, Kai

267

Simulation of the effects of chain architecture on the sorption of ethylene in polyethylene  

E-Print Network (OSTI)

Simulation of the effects of chain architecture on the sorption of ethylene in polyethylene Brian J in amorphous linear low-density polyethylene of different chain architectures. The NERD united-atom force field investigated the effect of polyethylene chain length and branching on ethylene solubility. In this study, we

Faller, Roland

268

Comparison of low-energy radiation effects in polyethylene and cellulose Jussi Polvi, Kai Nordlund  

E-Print Network (OSTI)

Comparison of low-energy radiation effects in polyethylene and cellulose Jussi Polvi, Kai Nordlund, for a carbon atom in polyethylene chain, and for one of the carbon atoms in cellulose chain. Our analysis shows and on average slightly higher for the carbon atoms in the polyethylene chain than for the target carbon atom

Nordlund, Kai

269

Substrate Effect on the Melting Temperature of Thin Polyethylene Films M. Rafailovich,1,* J. Sokolov,1  

E-Print Network (OSTI)

Substrate Effect on the Melting Temperature of Thin Polyethylene Films Y. Wang,1 M. Rafailovich,1 polyethylene thin films. The Tm decreases with the film thickness decrease when the film is thinner than that the degree of crystal- linity of polyethylene (PE) remained high even in films as thin as 15 nm [5]. A novel

270

Adhesion energy in carbon nanotube-polyethylene composite: Effect of chirality  

E-Print Network (OSTI)

Adhesion energy in carbon nanotube-polyethylene composite: Effect of chirality M. Al-Haik and M. Y 2005 This work presents a study of the adhesion energy between carbon nanotube-polyethylene matrix adhesion bonds to the polyethylene matrix. © 2005 American Institute of Physics. DOI: 10.1063/1.1868060 I

Garmestani, Hamid

271

Macromolecules 1991,24, 5687-5694 5687 Characterization of Molecular Orientation in Polyethylene by  

E-Print Network (OSTI)

Macromolecules 1991,24, 5687-5694 5687 Characterization of Molecular Orientation in Polyethylene bonds in thick processed samples of polyethylene. Introduction In order to take full advantage to the production of high-modulusfibersandfilms. High-density polyethylene isoneof the polymers that has been used

Pezolet, Michel

272

A MODIFIED GAMBLER'S RUIN MODEL POLYETHYLENE CHAINS IN THE AMORPHOUS REGION  

E-Print Network (OSTI)

A MODIFIED GAMBLER'S RUIN MODEL OF POLYETHYLENE CHAINS IN THE AMORPHOUS REGION Zhong­Hui Duan and Louis N. Howard Department of Mathematics The Florida State University ABSTRACT. Polyethylene chainsM 3 +O(M 2 ). INTRODUCTION Semicrystalline polyethylene formed from melt generally consists

Aluffi, Paolo

273

Effect of polyethylene glycol on the liquidliquid phase transition in aqueous protein solutions  

E-Print Network (OSTI)

Effect of polyethylene glycol on the liquid­liquid phase transition in aqueous protein solutions, 2002 We have studied the effect of polyethylene glycol (PEG) on the liquid­liquid phase separation. PEG ternary mixtures solubility partitioning Polyethylene glycol (PEG) is a hydrophilic nonionic

Annunziata, Onofrio

274

Number Plastic Type Common Items Number of Items (tally) 1 polyethylene terephthalate  

E-Print Network (OSTI)

End Time: Number Plastic Type Common Items Number of Items (tally) 1 polyethylene terephthalate and vegetable oil containers; ovenable food trays. 2 high density polyethylene Milk jugs, juice bottles; bleach, piping, candy wrappers 4 low density polyethylene Squeezable bottles; bread, frozen food, dry cleaning

Schladow, S. Geoffrey

275

Soil bacterial strains able to grow on the surface of oxidized polyethylene film containing prooxidant additives  

E-Print Network (OSTI)

Soil bacterial strains able to grow on the surface of oxidized polyethylene film containing low-density polyethylene film containing prooxidant additives were isolated from three forest soils of adhering to the surface of oxidized polyethylene, growing there and possibly biodegrading its oxidation

Boyer, Edmond

276

Thermal rectification at silicon-amorphous polyethylene interface Ming Hu,1,a  

E-Print Network (OSTI)

Thermal rectification at silicon-amorphous polyethylene interface Ming Hu,1,a Pawel Keblinski,1,b heat currents. We estimate that in the limit of large heat currents, the silicon-amorphous polyethylene by amorphous polymer polyethylene PE and silicon crystal. We will also show that the mecha- nism governing

Li, Baowen

277

Density functional study of molecular crystals: Polyethylene and a crystalline analog of bisphenol-A polycarbonate  

E-Print Network (OSTI)

Density functional study of molecular crystals: Polyethylene and a crystalline analog of bisphenol polyethylene comprising covalently bonded parallel chains with weak interchain interactions, and b reaction barriers.8 In a recent study of the interchain interactions in crystalline polyethylene PE ,9 we

278

Reduced adhesion of human blood platelets to polyethylene tubing by microplasma surface modification  

E-Print Network (OSTI)

Reduced adhesion of human blood platelets to polyethylene tubing by microplasma surface of small-diameter polyethylene (PE) tubing. A microwave cavity diagnostic was used to measure the density tubing and the emitted light intensity was found. A poly(ethylene oxide) surfactant was immobilized

von Andrian, Ulrich H.

279

The crystallographic texture of a great number of polyethylene films manufactured by the film  

E-Print Network (OSTI)

The crystallographic texture of a great number of polyethylene films manufactured by the film polymer films (fig. 1). It is essentially dedicated to polyethylene, espe- cially for packaging in polyethylene blown films J.-M. Haudin, J.-M. André, G. Bellet, B. Monasse, P. Navard �cole des Mines de Paris

Paris-Sud XI, Université de

280

Effect of the sliding orientation on the tribological properties of polyethylene in molecular dynamics simulations  

E-Print Network (OSTI)

Effect of the sliding orientation on the tribological properties of polyethylene in molecular properties of polyethylene PE is investigated by using classical molecular dynamics simulations. Cross: 10.1063/1.2900884 I. INTRODUCTION Polyethylene PE is one of the most widely used poly- mers because

Sawyer, Wallace

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


281

Creep Behavior of High Density Polyethylene after Aging in Contact with Different Oil Derivates  

E-Print Network (OSTI)

Creep Behavior of High Density Polyethylene after Aging in Contact with Different Oil Derivates The creep behavior of a high density polyethylene (HDPE), currently used as raw material for pipe manu polyethylene (HDPE) is a natural choice due to its good properties, its large availability, and its reduced

Paris-Sud XI, Université de

282

Rheology of Low-Density Polyethylene Boehmite Piotr Blaszczak,1,2  

E-Print Network (OSTI)

Rheology of Low-Density Polyethylene þ Boehmite Composites Piotr Blaszczak,1,2 Witold Brostow,1), University of North Texas, Denton 76203-5017, Texas Polyethylene is already one of the most commonly used polymers due to its solvent resistance and easy processing. Low-density polyethylene (LDPE) also has

North Texas, University of

283

PHYSICAL REVIEW B 85, 094109 (2012) Electron dynamics of shocked polyethylene crystal  

E-Print Network (OSTI)

PHYSICAL REVIEW B 85, 094109 (2012) Electron dynamics of shocked polyethylene crystal Patrick L-dynamics simulations of the single shock Hugoniot are reported for a crystalline polyethylene (PE) model. The e. INTRODUCTION The material response of polyethylene (PE) to shock and its behavior in the warm dense matter (WDM

284

Crystallographic texture evolution in high-density polyethylene during uniaxial tension  

E-Print Network (OSTI)

Crystallographic texture evolution in high-density polyethylene during uniaxial tension D. Lia , H experimental measurements of crystallographic texture evolution in high-density polyethylene subjected to very straining of high-density polyethylene to large strains. There are at least three distinct preferred

Garmestani, Hamid

285

1 Electrospun Polyethylene Oxide/Cellulose Nanocrystal Composite 2 Nanofibrous Mats with Homogeneous and Heterogeneous  

E-Print Network (OSTI)

1 Electrospun Polyethylene Oxide/Cellulose Nanocrystal Composite 2 Nanofibrous Mats(acrylic acid) (PAA),14 polyethylene oxide (PEO),15 poly(lactic 57acid) (PLA),16,17 polystyrene (PS),18 was successfully used 9 to fabricate polyethylene oxide/cellulose nanocrystal (PEO/ 10 CNC) composite nanofibrous

286

P-7 / D. R. Cairns P-7: Wear Resistance of Indium Tin Oxide Coatings on Polyethylene  

E-Print Network (OSTI)

P-7 / D. R. Cairns P-7: Wear Resistance of Indium Tin Oxide Coatings on Polyethylene Terephthalate The wear mechanisms of the Indium Tin Oxide (ITO) coated Polyethylene Terephthalate (PET) topsheet). The bottom substrate is typically glass and the top sheet a polyester such as Polyethylene Terephthalate (PET

Cairns, Darran

287

Orientation and relaxation of orientation of amorphous poly(ethylene terephthalate)  

E-Print Network (OSTI)

Orientation and relaxation of orientation of amorphous poly(ethylene terephthalate) A. Karim 25 April 2001 Abstract Poly(ethylene terephthalate) (PET) has been uniaxially stretched at different by Elsevier Science Ltd. Keywords: Poly(ethylene terephthalate); Orientation; Relaxation 1. Introduction

Pezolet, Michel

288

Controlled roughening of poly(ethylene terephthalate) by photoablation : study of wetting and contact angle hysteresis  

E-Print Network (OSTI)

1065 Controlled roughening of poly(ethylene terephthalate) by photoablation : study of wetting of crystalline poly(ethylene terephthalate) films is readily roughened by ablative photodecomposition obtained poly(ethylene terephthalate) films. It is also shown that the three phases contact line of a liquid

Paris-Sud XI, Université de

289

Conformation of Poly(ethylene oxide)-Hydroxybenzene Molecular Complexes Studied by Solid-State NMR  

E-Print Network (OSTI)

Conformation of Poly(ethylene oxide)-Hydroxybenzene Molecular Complexes Studied by Solid-State NMR February 16, 2000 ABSTRACT: The conformation of poly(ethylene oxide), PEO, in molecular complexes. Introduction Poly(ethylene oxide), PEO, is a relatively nonpolar polymer but contains ether oxygens

Hong, Mei

290

Characterization of poly(ethylene terephthalate) used in commercial bottled water  

E-Print Network (OSTI)

Characterization of poly(ethylene terephthalate) used in commercial bottled water Cristina Bach1 into drinking water packaged in poly(ethylene terephtalate) bottles and to know the origin of these substances of molecules inside the polymer, it means the pollution of the bottled water. 1. Introduction Poly(ethylene

Paris-Sud XI, Université de

291

Optimization For Grade Transitions In Polyethylene Solution Polymerization  

E-Print Network (OSTI)

Optimization For Grade Transitions In Polyethylene Solution Polymerization Jun Shi1, Intan Hamdan2 Engineering Carnegie Mellon University 2The Dow Chemical Company #12;Dynamic Optimization Models Grade Transition for LLDPE · Continuous Stirred-Tank Reactor (CSTR) (represents two actual processes) · Assume

Grossmann, Ignacio E.

292

Preparation and characterization of PAA/PVDF membrane-immobilized Pd/Fe nanoparticles for dechlorination of trichloroacetic acid  

Science Journals Connector (OSTI)

Poly(vinylidene fluoride) (PVDF) microfiltration (MF) membrane was successfully hydrophilized by coating with a novel hydrophilic layer, which was mainly composed of polyvinyl alcohol (PVA), glutaraldehyde, and polyethylene glycol (PEG). Pd/Fe nanoparticles (NPs) were prepared and immobilized in hydrophilized polyacrylic acid (PAA)/PVDF MF membrane. The unmodified and modified PVDF MF membranes were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR). The membrane-supported Pd/Fe \\{NPs\\} exhibited high reactivity in the dechlorination of trichloroacetic acid (TCAA). The effects of several important parameters, including Pd content, Pd/Fe NP loading, the preservation time of Pd/Fe NP membrane system on the dechlorination of TCAA were investigated. The stability of Pd/Fe NP membrane system was tested, and the kinetics and product distribution of dechlorination of TCAA by Pd/Fe NP membrane system were discussed.

Xiangyu Wang; Chao Chen; Huiling Liu; Jun Ma

2008-01-01T23:59:59.000Z

293

Issue 5: Optimizing High Levels of Insulation  

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

Issue 5: Optimizing High Levels of Insulation NREL, Ren Anderson Building America Technical Update Meeting July 25 th , 2012 Issue 5 - How Much Insulation is Too Much? How do we define the cost-effective limit for improvements in enclosure efficiency? Key Factors to Consider: -Cost of savings vs. cost of grid-supplied energy -Cost of efficiency savings vs. cost of savings from renewable generation. -Savings from envelope improvements vs. other efficiency options Context * It is widely believed that code-specified insulation levels also represent cost-effective limits. * However, the cost-effective insulation levels exceed IECC values in many climates. * The homeowner-driven value of modest increases in enclosure performance can create economies of scale that will reduce

294

Next Generation Insulation Materials: Challenges and Opportunities...  

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

Next-Generation Insulation Materials: Challenges and Opportunities Nov 14 2014 03:00 PM - 04:00 PM Kaushik Biswas, Building Technologies Research and Integration Center, Oak Ridge...

295

Nonlinear boundary value problem of magnetic insulation  

E-Print Network (OSTI)

On the basis of generalization of upper and lower solution method to the singular two point boundary value problems, the existence theorem of solutions for the system, which models a process of magnetic insulation in plasma is proved.

A. V. Sinitsyn

2000-09-09T23:59:59.000Z

296

On Electrical Insulation in High Vacua  

Science Journals Connector (OSTI)

1 January 1878 research-article On Electrical Insulation in High Vacua William Crookes The Royal Society is collaborating with JSTOR to digitize, preserve, and extend access to Proceedings of the Royal Society of London. www.jstor.org

1878-01-01T23:59:59.000Z

297

Phosphorylation based insulation devices design and implementation  

E-Print Network (OSTI)

This thesis presents the analysis of a phosphorylation based insulation device implemented in Saccharomyces cerevisae and the minimization of the retroactivity to the input and retroactivity to the output of a single cycle ...

Rivera Ortiz, Phillip M. (Phillip Michael)

2013-01-01T23:59:59.000Z

298

Noise Absorbing High-Temperature Insulation  

Science Journals Connector (OSTI)

Until recently simple heat shields on the engine, in the engine space or on the subframe of a vehicle had given protection against radiant heat from hot components. Today, complex high-temperature insulation syst...

Peter Cappellucci

2013-07-01T23:59:59.000Z

299

Laser perforation of screen vacuum thermal insulation  

Science Journals Connector (OSTI)

This paper presents the results of the process of laser perforation of screen vacuum thermal insulation and shows that it has high efficiency. The use of various types of IR lasers...

Sysoev, V K; Vyatlev, P A; Zakharchenko, A V

2007-01-01T23:59:59.000Z

300

Insulate Steam Distribution and Condensate Return Lines  

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

This tip sheet on insulating steam distribution and condensate return lines provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Insulate Steam Distribution and Condensate Return Lines  

SciTech Connect

This revised ITP tip sheet on insulating steam distribution and condensate return lines provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Not Available

2006-01-01T23:59:59.000Z

302

Environmental assessment of thermal insulation composite material  

Science Journals Connector (OSTI)

Of other thermal insulation materials, the foam glass has most similar mechanical properties (PE...2008) and use (structural details exposed to high compressive loads). Therefore, it is (to a certain extend) comp...

Karel Struhala; Zuzana Stránská; Jan P?n?ík…

2014-12-01T23:59:59.000Z

303

Fire Behaviour of Rigid Foam Insulation Boards  

Science Journals Connector (OSTI)

Low density cellular polymers have established a significant share of the market for insulating materials in the building industry due to their unique combination of low density and low thermal conductivity. Manu...

P. J. Briggs

1986-01-01T23:59:59.000Z

304

Reinforced Phenolic Foams for Thermal Insulation  

Science Journals Connector (OSTI)

The reported research is related to phenolic resins panels for thermal insulation. This research started from previous results on the fabrication of foams from powdered Novolaque phenolic resins without acid...

P. Dubois; C. Reinaudo; E. Morel; C. Chauvelier

1984-01-01T23:59:59.000Z

305

Aging Characteristics of Polyurethane Foam Insulation  

Science Journals Connector (OSTI)

Closed-cell polyurethane foam insulation displays a time-dependent thermal conductivity characteristic commonly known as aging. Freshly made foam has a relatively low thermal conductivity, which ... in order to e...

J. Navickas; R. A. Madsen

1977-01-01T23:59:59.000Z

306

Thermal Insulation in Solar Thermal Devices  

Science Journals Connector (OSTI)

Thermal Insulation is a device or a practice which is used in a system for minimising heat losses caused due to transfer of heat from hotter to colder regions. It is one of the cheapest methods of energy conse...

B. C. Raychaudhuri

1986-01-01T23:59:59.000Z

307

Insulation for New Home Construction | Department of Energy  

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

Insulation for New Home Construction Insulation for New Home Construction Insulation for New Home Construction June 20, 2012 - 7:59pm Addthis Planning carefully for insulation results in reduced utility bills and superior comfort during the life of the home. In this house, raised heel trusses accommodate R-60 insulation. | Credit: Paul Norton, NREL. Planning carefully for insulation results in reduced utility bills and superior comfort during the life of the home. In this house, raised heel trusses accommodate R-60 insulation. | Credit: Paul Norton, NREL. What does this mean for me? Adding extra insulation in a new home is more cost-effective than retrofitting insulation after the home is completed. Insulation is a key component of the systems that work together to create a comfortable, energy-efficient home that is affordable to heat and

308

Savings Project: Insulate Your Water Heater Tank | Department of Energy  

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

Savings Project: Insulate Your Water Heater Tank Savings Project: Insulate Your Water Heater Tank Savings Project: Insulate Your Water Heater Tank Addthis Project Level medium Energy Savings $20-$45 annually Time to Complete 1.5 hours Overall Cost $30 Insulate your hot water tank to save energy and money. | Photo courtesy of iStockphoto.com/glennebo Insulate your hot water tank to save energy and money. | Photo courtesy of iStockphoto.com/glennebo Just like insulating your walls or roof, insulating your hot water tank is an easy and inexpensive way to improve energy efficiency and save you money each month. If your water tank is new, it is likely already insulated. If you have an older hot water tank, check to see if it has insulation with an R-value of at least 24. If not, consider insulating your water tank, which

309

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

310

Strained-Si-on-Insulator (SSOI) and SiGe-on-Insulator (SGOI): Fabrication Obstacles and Solutions  

E-Print Network (OSTI)

Strained-Si-on-Insulator (SSOI) and SiGe-on-Insulator (SGOI): Fabrication Obstacles and Solutions-Si and SiGe-on-insulator were fabricated, combining both the benefits of high-mobility strained-Si and SOI) to oxidized handle wafers. Layer transfer onto insulating handle wafers can be accomplished using grind

311

Development of insulating coatings for liquid metal blankets  

SciTech Connect

It is shown that self-cooled liquid metal blankets are feasible only with electrically insulating coatings at the duct walls. The requirements on the insulation properties are estimated by simple analytical models. Candidate insulator materials are selected based on insulating properties and thermodynamic consideration. Different fabrication technologies for insulating coatings are described. The status of the knowledge on the most crucial feasibility issue, the degradation of the resisivity under irradiation, is reviewed.

Malang, S.; Borgstedt, H.U. [Kernforschungszentrum Karlsruhe GmbH (Germany); Farnum, E.H. [Los Alamos National Lab., NM (United States); Natesan, K. [Argonne National Lab., IL (United States); Vitkovski, I.V. [Efremov Inst., St. Petersburg (Russian Federation). MHD-Machines Lab.

1994-07-01T23:59:59.000Z

312

Polyethylene Terephthalate / clay nanocomposites. Compounding, fabrication and characterisation of the thermal, rheological, barrier and mechanical properties of Polyethylene Terephthalate / clay nanocomposites.  

E-Print Network (OSTI)

??Polyethylene Terephthalate (PET) is one of the most important polymers in use today for packaging due to its outstanding properties. The usage of PET has… (more)

Al-Fouzan, Abdulrahman M.

2011-01-01T23:59:59.000Z

313

Characterization of corrosive agents in polyurethane foams for thermal insulation of pipelines  

Science Journals Connector (OSTI)

Thermal insulated pipelines consists of a pipe, an optional anticorrosive coating, covered by rigid polyurethane (PU) foam and an outer casing made of high-density polyethylene (HDPE). In this paper, a methodology to investigate corrosion under thermal insulation and the compatibility between the polyurethane foams and anticorrosive coatings was developed. It consists of chemical, electrochemical and mass loss tests in aqueous extracts of the foams. The aqueous extracts were prepared according to an adaptation of ASTM C871 standard, taking into account the temperature range commonly employed in pipes operations of heavy petroleum derivatives. The chemical analysis of the extracts included pH, conductivity, phosphate, chloride and fluoride contents. Mass loss, electrochemical impedance and linear polarization were accomplished in autoclave. The influence of temperature, flame retardant and blowing agent was considered on the generation of corrosive agents. It was verified that the content of chloride in the foams is a very important parameter that must be controlled. Still in this paper, the compatibility of polyurethane foams with anticorrosive coatings is preliminary evaluated. The results show that investments on a proper coating selection are essential to guarantee good performance.

F.V.V. de Sousa; R.O. da Mota; J.P. Quintela; M.M. Vieira; I.C.P. Margarit; O.R. Mattos

2007-01-01T23:59:59.000Z

314

Adding Insulation to an Existing Home | Department of Energy  

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

Adding Insulation to an Existing Home Adding Insulation to an Existing Home Adding Insulation to an Existing Home May 23, 2013 - 1:44pm Addthis Adding insulation in an existing home saves money and improves comfort. | Photo courtesy of Dennis Schroeder, NREL. Adding insulation in an existing home saves money and improves comfort. | Photo courtesy of Dennis Schroeder, NREL. What does this mean for me? Adding insulation to your home saves money and improves comfort. Adding insulation to your home is a sound investment that is likely pay for itself quickly in reduced utility bills. Insulation inhibits heat flow through the building envelope of your home, saving money and improving comfort. Unless your home was specially constructed for energy efficiency, you can probably reduce your energy bills by adding more insulation. Many older

315

Dynamic predictive clothing insulation models based on outdoor air and indoor operative temperatures  

E-Print Network (OSTI)

predictive clothing insulation models based on outdoor airrange of the clothing insulation calculated for eachbuilding). Figure 8 Clothing insulation versus dress code [

Schiavon, Stefano; Lee, Kwang Ho

2012-01-01T23:59:59.000Z

316

Predictive clothing insulation model based on outdoor air and indoor operative temperatures  

E-Print Network (OSTI)

2012) Predictive clothing insulation model based on outdoorPredictive clothing insulation model based on outdoor airpredictive models of clothing insulation have been developed

Schiavon, Stefano; Lee, Kwang Ho

2012-01-01T23:59:59.000Z

317

Versatile Indian sari: Clothing insulation with different drapes of typical sari ensembles  

E-Print Network (OSTI)

Extension of the Clothing Insulation Database for Standardand air movement on that insulation. , s.l. : s.n. Havenith,Estimation of the thermal insulation and evaporative

Indraganti, Madhavi; Lee, Juyoun; Zhang, Hui; Arens, Edward

2014-01-01T23:59:59.000Z

318

Method for minimizing contaminant particle effects in gas-insulated electrical apparatus  

DOE Patents (OSTI)

Electrical breakdown of a gas insulator in high voltage apparatus is prevented by placing an electrical insulative coating on contaminant particles in the gas insulator.

Pace, M.O.; Adcock, J.L.; Christophorou, L.G.

1984-01-01T23:59:59.000Z

319

Flipping Photoelectron Spins in Topological Insulators  

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

Flipping Photoelectron Spins in Topological Insulators Print Flipping Photoelectron Spins in Topological Insulators Print Inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science. This new phase of condensed matter is an insulator in the bulk, yet behaves like a metal on its surface, even at room temperature. The electrons that flow swiftly across the surfaces of TIs are "spin polarized", meaning the electron's spin is locked to its momentum, perpendicular to the direction of travel. These electronic states already promise many uses, but ALS researchers working at Beamline 4.0.3 with a team from Berkeley Lab and the University of California, Berkeley have just made an unexpected discovery about TIs that will broaden their possible range of applications: when hit with a photon beam, the spin polarization of the electrons they emit (in a process called photoemission) can be completely controlled in three dimensions, simply by tuning the polarization of the incident light. This strong effect was not what had been assumed about photoemission from topological insulators, or any other material. Controlling the interaction of polarized light and photoelectron spin opens a wide range of possibilities for TIs.

320

Flipping Photoelectron Spins in Topological Insulators  

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

Flipping Photoelectron Spins in Topological Insulators Print Flipping Photoelectron Spins in Topological Insulators Print Inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science. This new phase of condensed matter is an insulator in the bulk, yet behaves like a metal on its surface, even at room temperature. The electrons that flow swiftly across the surfaces of TIs are "spin polarized", meaning the electron's spin is locked to its momentum, perpendicular to the direction of travel. These electronic states already promise many uses, but ALS researchers working at Beamline 4.0.3 with a team from Berkeley Lab and the University of California, Berkeley have just made an unexpected discovery about TIs that will broaden their possible range of applications: when hit with a photon beam, the spin polarization of the electrons they emit (in a process called photoemission) can be completely controlled in three dimensions, simply by tuning the polarization of the incident light. This strong effect was not what had been assumed about photoemission from topological insulators, or any other material. Controlling the interaction of polarized light and photoelectron spin opens a wide range of possibilities for TIs.

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Flipping Photoelectron Spins in Topological Insulators  

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

Flipping Photoelectron Spins in Topological Insulators Print Flipping Photoelectron Spins in Topological Insulators Print Inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science. This new phase of condensed matter is an insulator in the bulk, yet behaves like a metal on its surface, even at room temperature. The electrons that flow swiftly across the surfaces of TIs are "spin polarized", meaning the electron's spin is locked to its momentum, perpendicular to the direction of travel. These electronic states already promise many uses, but ALS researchers working at Beamline 4.0.3 with a team from Berkeley Lab and the University of California, Berkeley have just made an unexpected discovery about TIs that will broaden their possible range of applications: when hit with a photon beam, the spin polarization of the electrons they emit (in a process called photoemission) can be completely controlled in three dimensions, simply by tuning the polarization of the incident light. This strong effect was not what had been assumed about photoemission from topological insulators, or any other material. Controlling the interaction of polarized light and photoelectron spin opens a wide range of possibilities for TIs.

322

Flipping Photoelectron Spins in Topological Insulators  

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

Flipping Photoelectron Spins in Flipping Photoelectron Spins in Topological Insulators Flipping Photoelectron Spins in Topological Insulators Print Tuesday, 23 April 2013 10:00 Inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science. This new phase of condensed matter is an insulator in the bulk, yet behaves like a metal on its surface, even at room temperature. The electrons that flow swiftly across the surfaces of TIs are "spin polarized", meaning the electron's spin is locked to its momentum, perpendicular to the direction of travel. These electronic states already promise many uses, but ALS researchers working at Beamline 4.0.3 with a team from Berkeley Lab and the University of California, Berkeley have just made an unexpected discovery about TIs that will broaden their possible range of applications: when hit with a photon beam, the spin polarization of the electrons they emit (in a process called photoemission) can be completely controlled in three dimensions, simply by tuning the polarization of the incident light. This strong effect was not what had been assumed about photoemission from topological insulators, or any other material. Controlling the interaction of polarized light and photoelectron spin opens a wide range of possibilities for TIs.

323

Flipping Photoelectron Spins in Topological Insulators  

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

Flipping Photoelectron Spins in Topological Insulators Print Flipping Photoelectron Spins in Topological Insulators Print Inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science. This new phase of condensed matter is an insulator in the bulk, yet behaves like a metal on its surface, even at room temperature. The electrons that flow swiftly across the surfaces of TIs are "spin polarized", meaning the electron's spin is locked to its momentum, perpendicular to the direction of travel. These electronic states already promise many uses, but ALS researchers working at Beamline 4.0.3 with a team from Berkeley Lab and the University of California, Berkeley have just made an unexpected discovery about TIs that will broaden their possible range of applications: when hit with a photon beam, the spin polarization of the electrons they emit (in a process called photoemission) can be completely controlled in three dimensions, simply by tuning the polarization of the incident light. This strong effect was not what had been assumed about photoemission from topological insulators, or any other material. Controlling the interaction of polarized light and photoelectron spin opens a wide range of possibilities for TIs.

324

12 - Life cycle assessment (LCA) of building thermal insulation materials  

Science Journals Connector (OSTI)

Abstract: In this chapter thermal insulation materials and types of plaster and their properties are described. The impact of the selected thermal insulation materials and plaster on the environment is assessed using LCA analysis. A method of assessing the ecological and economic benefits resulting from thermal insulation of the external walls of buildings is proposed. On this basis, ecological and economic payback periods for thermal insulation are defined as well as the ecological efficiency of thermal insulation. The conducted analyses conclude that thermal insulation of the external walls of buildings is environmentally favourable.

R. Dylewski; J. Adamczyk

2014-01-01T23:59:59.000Z

325

Molecular dynamics simulation of chains mobility in polyethylene crystal  

E-Print Network (OSTI)

The mobility of polymer chains in perfect polyethylene (PE) crystal was calculated as a function of temperature and chain length through Molecular dynamics (MD) in united atom approximation. The results demonstrate that the chain mobility drastically increases in the vicinity of the phase transition from the orthorhombic to quasi-hexagonal phase. In the quasi-hexagonal phase, the chain mobility is almost independent on temperature and inversely proportional to the chain length.

V. I. Sultanov; V. V. Atrazhev; D. V. Dmitriev; S. F. Burlatsky

2014-01-17T23:59:59.000Z

326

Polyethylene macroencapsulation - mixed waste focus area. OST reference No. 30  

SciTech Connect

The lead waste inventory throughout the US Department of Energy (DOE) complex has been estimated between 17 million and 24 million kilograms. Decontamination of at least a portion of the lead is viable but at a substantial cost. Because of various problems with decontamination and its limited applicability and the lack of a treatment and disposal method, the current practice is indefinite storage, which is costly and often unacceptable to regulators. Macroencapsulation is an approved immobilization technology used to treat radioactively contaminated lead solids and mixed waste debris. (Mixed waste is waste materials containing both radioactive and hazardous components). DOE has funded development of a polyethylene extrusion macroencapsulation process at Brookhaven National Laboratory (BNL) that produces a durable, leach-resistant waste form. This innovative macroencapsulation technology uses commercially available single-crew extruders to melt, convey, and extrude molten polyethylene into a waste container in which mixed waste lead and debris are suspended or supported. After cooling to room temperature, the polyethylene forms a low-permeability barrier between the waste and the leaching media.

NONE

1998-02-01T23:59:59.000Z

327

Studies Bolster Promise of Topological Insulators  

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

Studies Bolster Promise of Studies Bolster Promise of Topological Insulators Studies Bolster Promise of Topological Insulators Print Tuesday, 27 November 2012 00:00 A few years ago, a strange new material began to drive research in condensed-matter physics around the world. First theorized and then discovered by researchers at Berkeley Lab and their colleagues in other institutions, these "strong 3D topological insulators"-TIs for short-are seemingly mundane semiconductors with startling properties. Not only are they promising materials for energy-conserving electronic applications, they provide a fascinating medium for possibly observing still-theoretical particles that could play a major role in quantum computing. Two angle-resolved photoemission spectroscopy (ARPES) studies recently performed at ALS Beamline 12.0.1 improve the prospects for the practical application of TIs in advanced devices.

328

Studies Bolster Promise of Topological Insulators  

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

Studies Bolster Promise of Topological Insulators Print Studies Bolster Promise of Topological Insulators Print A few years ago, a strange new material began to drive research in condensed-matter physics around the world. First theorized and then discovered by researchers at Berkeley Lab and their colleagues in other institutions, these "strong 3D topological insulators"-TIs for short-are seemingly mundane semiconductors with startling properties. Not only are they promising materials for energy-conserving electronic applications, they provide a fascinating medium for possibly observing still-theoretical particles that could play a major role in quantum computing. Two angle-resolved photoemission spectroscopy (ARPES) studies recently performed at ALS Beamline 12.0.1 improve the prospects for the practical application of TIs in advanced devices.

329

Vacuum Glazing; A Thermally Insulating Window Technology  

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

Vacuum Glazing; A Thermally Insulating Window Technology Vacuum Glazing; A Thermally Insulating Window Technology Speaker(s): Cenk Kocer Date: May 31, 2012 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Sunnie Lim The vacuum glazing consists of two panes of glass separated by a sub-millimetre vacuum gap. Under the action of atmospheric pressure the separation of the panes is maintained by an array of high strength spacers in the gap. The glass panes are hermetically sealed at the edge using a low melting point glass frit (solder glass). Since 1913 many have worked on a practical implementation of such a flat insulating glass structure, with success finally being reported in 1989 by Collins et al. at the University of Sydney. The purpose of this talk is to present a brief history of the vacuum glazing research at the University of Sydney, and outline in detail

330

Studies Bolster Promise of Topological Insulators  

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

Studies Bolster Promise of Topological Insulators Print Studies Bolster Promise of Topological Insulators Print A few years ago, a strange new material began to drive research in condensed-matter physics around the world. First theorized and then discovered by researchers at Berkeley Lab and their colleagues in other institutions, these "strong 3D topological insulators"-TIs for short-are seemingly mundane semiconductors with startling properties. Not only are they promising materials for energy-conserving electronic applications, they provide a fascinating medium for possibly observing still-theoretical particles that could play a major role in quantum computing. Two angle-resolved photoemission spectroscopy (ARPES) studies recently performed at ALS Beamline 12.0.1 improve the prospects for the practical application of TIs in advanced devices.

331

Frostbite Theater - Liquid Nitrogen Experiments - Insulators!  

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

Popping Film Canisters! Popping Film Canisters! Previous Video (Popping Film Canisters!) Frostbite Theater Main Index Next Video (Liquid Nitrogen Show!) Liquid Nitrogen Show! Insulators! Cups full of water are placed into bowls of liquid nitrogen! Which cup will insulate the best? [ Show Transcript ] Announcer: Frostbite Theater presents... Cold Cuts! No baloney! Joanna and Steve: Just science! Joanna: Hi! I'm Joanna! Steve: And I'm Steve! Joanna: And this is a container of liquid nitrogen! Steve: And these are two plastic cups! Joanna: Let's see which cup is the better insulator! Steve: Okay! So, um, how do we do that? Joanna: Well, we'll pour water into each of the cups and then we'll pour the liquid nitrogen into each of the bowls. If we then place the cup in the bowl, the heat from the water will try to pass through the cup into the

332

Studies Bolster Promise of Topological Insulators  

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

Studies Bolster Promise of Topological Insulators Print Studies Bolster Promise of Topological Insulators Print A few years ago, a strange new material began to drive research in condensed-matter physics around the world. First theorized and then discovered by researchers at Berkeley Lab and their colleagues in other institutions, these "strong 3D topological insulators"-TIs for short-are seemingly mundane semiconductors with startling properties. Not only are they promising materials for energy-conserving electronic applications, they provide a fascinating medium for possibly observing still-theoretical particles that could play a major role in quantum computing. Two angle-resolved photoemission spectroscopy (ARPES) studies recently performed at ALS Beamline 12.0.1 improve the prospects for the practical application of TIs in advanced devices.

333

An Insulating Breakthrough | Advanced Photon Source  

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

Science Highlights Archives: 2013 | 2012 | 2011 | 2010 Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed An Insulating Breakthrough JANUARY 8, 2007 Bookmark and Share Tungsten Diselenide A new insulating material with the lowest thermal conductivity ever measured for a fully dense solid has been created at the University of Oregon (UO) and tested at the XOR/UNI 33-BM beamline at the U.S. Department of Energy's Advanced Photon Source (APS) at Argonne. The research was carried out by collaborators from the UO, the University of Illinois at Urbana-Champaign, the Rensselaer Polytechnic Institute, and Argonne. While far from having immediate application, the principles involved, once understood, could lead to improved insulation for a wide variety of uses,

334

Constraints on topological order in Mott Insulators  

E-Print Network (OSTI)

We point out certain symmetry induced constraints on topological order in Mott Insulators (quantum magnets with an odd number of spin $\\tfrac{1}{2}$ per unit cell). We show, for example, that the double semion topological order is incompatible with time reversal and translation symmetry in Mott insulators. This sharpens the Hastings-Oshikawa-Lieb-Schultz-Mattis theorem for 2D quantum magnets, which guarantees that a fully symmetric gapped Mott insulator must be topologically ordered, but is silent on which topological order is permitted. An application of our result is the Kagome lattice quantum antiferromagnet where recent numerical calculations of entanglement entropy indicate a ground state compatible with either toric code or double semion topological order. Our result rules out the latter possibility.

Michael P. Zaletel; Ashvin Vishwanath

2014-10-10T23:59:59.000Z

335

Method of fabricating a multilayer insulation blanket  

DOE Patents (OSTI)

An improved multilayer insulation blanket for insulating cryogenic structures operating at very low temperatures is disclosed. An apparatus and method for fabricating the improved blanket are also disclosed. In the improved blanket, each successive layer of insulating material is greater in length and width than the preceding layer so as to accommodate thermal contraction of the layers closest to the cryogenic structure. The fabricating apparatus has a rotatable cylindrical mandrel having an outer surface of fixed radius that is substantially arcuate, preferably convex, in cross-section. The method of fabricating the improved blanket comprises (a) winding a continuous sheet of thermally reflective material around the circumference of the mandrel to form multiple layers, (b) binding the layers along two lines substantially parallel to the edges of the circumference of the mandrel, (c) cutting the layers along a line parallel to the axle of the mandrel, and (d) removing the bound layers from the mandrel.

Gonczy, John D. (Oak Lawn, IL); Niemann, Ralph C. (Downers Grove, IL); Boroski, William N. (Aurora, IL)

1993-01-01T23:59:59.000Z

336

Multilayer insulation blanket, fabricating apparatus and method  

DOE Patents (OSTI)

An improved multilayer insulation blanket for insulating cryogenic structures operating at very low temperatures is disclosed. An apparatus and method for fabricating the improved blanket are also disclosed. In the improved blanket, each successive layer of insulating material is greater in length and width than the preceding layer so as to accommodate thermal contraction of the layers closest to the cryogenic structure. The fabricating apparatus has a rotatable cylindrical mandrel having an outer surface of fixed radius that is substantially arcuate, preferably convex, in cross-section. The method of fabricating the improved blanket comprises (a) winding a continuous sheet of thermally reflective material around the circumference of the mandrel to form multiple layers, (b) binding the layers along two lines substantially parallel to the edges of the circumference of the mandrel, (c) cutting the layers along a line parallel to the axle of the mandrel, and (d) removing the bound layers from the mandrel.

Gonczy, John D. (Oak Lawn, IL); Niemann, Ralph C. (Downers Grove, IL); Boroski, William N. (Aurora, IL)

1992-01-01T23:59:59.000Z

337

Is graphene in vacuum an insulator?  

E-Print Network (OSTI)

We present evidence, from Lattice Monte Carlo simulations of the phase diagram of graphene as a function of the Coulomb coupling between quasiparticles, that graphene in vacuum is likely to be an insulator. We find a semimetal-insulator transition at $\\alpha_g^\\text{crit} = 1.11 \\pm 0.06$, where $\\alpha_g^{} \\simeq 2.16$ in vacuum, and $\\alpha_g^{} \\simeq 0.79$ on a SiO$_2^{}$ substrate. Our analysis uses the logarithmic derivative of the order parameter, supplemented by an equation of state. The insulating phase disappears above a critical number of four-component fermion flavors $4 < N_f^{\\text{crit}} < 6$. Our data are consistent with a second-order transition.

Joaquín E. Drut; Timo A. Lähde

2008-07-05T23:59:59.000Z

338

Nuclear reactor vessel fuel thermal insulating barrier  

DOE Patents (OSTI)

The reactor vessel of a nuclear reactor installation which is suspended from the cold leg nozzles in a reactor cavity is provided with a lower thermal insulating barrier spaced from the reactor vessel that has a hemispherical lower section that increases in volume from the center line of the reactor to the outer extent of the diameter of the thermal insulating barrier and smoothly transitions up the side walls of the vessel. The space between the thermal insulating harrier and the reactor vessel forms a chamber which can be flooded with cooling water through passive valving to directly cool the reactor vessel in the event of a severe accident. The passive inlet valve for the cooling water includes a buoyant door that is normally maintained sealed under its own weight and floats open when the cavity is Hooded. Passively opening steam vents are also provided.

Keegan, C. Patrick; Scobel, James H.; Wright, Richard F.

2013-03-19T23:59:59.000Z

339

Thermal radiative properties of phenolic foam insulation  

Science Journals Connector (OSTI)

Thermal insulation has long been an important subject in engineering. Foam insulations have become the most widely used insulations due to their low cost and ease of procesing. In recent years, phenolic foams find increasing applications because of their fire retardation. This paper presents experimental results of thermal radiative properties of phenolic foams, with or without activated carbon. Transmittance spectra were first taken using FTIR for samples of various densities. Extinction coefficient spectra were then obtained by applying Beer's law. Finally, by using the diffusion approximation, the Rosseland mean extinction coefficients and radiative thermal conductivities were obtained for various temperatures. Results show that the extinction coefficient increases with sample density. The addition of activated carbon increases the extinction coefficient slightly.

Chung-jen Tseng; Kuang-te Kuo

2002-01-01T23:59:59.000Z

340

Massive Dirac surface states in topological insulator/magnetic insulator heterostructures  

Science Journals Connector (OSTI)

Topological insulators are new states of matter with a bulk gap and robust gapless surface states protected by time-reversal symmetry. When time-reversal symmetry is broken, the surface states are gapped, which induces a topological response of the system to electromagnetic field—the topological magnetoelectric effect. In this paper we study the behavior of topological surface states in heterostructures formed by a topological insulator and a magnetic insulator. Several magnetic insulators with compatible magnetic structure and relatively good lattice matching with topological insulators Bi2Se3, Bi2Te3, Sb2Te3 are identified, and the best candidate material is found to be MnSe, an antiferromagnetic insulator. We perform first-principles calculations in Bi2Se3/MnSe superlattices and obtain the surface state band structure. The magnetic exchange coupling with MnSe induces a gap of ?54 meV at the surface states. In addition we tune the distance between Mn ions and the topological insulator surface to study the distance dependence of the exchange coupling.

Weidong Luo and Xiao-Liang Qi

2013-02-19T23:59:59.000Z

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Test Report: Cost Effective Foundation Insulation  

SciTech Connect

A field experiment was conducted to demonstrate and quantify the thermal effectiveness of rigid insulation board when installed on the exterior of a buried concrete foundation wall. A heated, insulated box was constructed along one wall of an existing, unheated building to simulate the living space of a home. The crawl space beneath the living space was divided into two sections. One featured external foundation insulation, while the other side had none. 36 temperature and heat flux sensors were installed at predetermined locations to measure the temperature profile and heat flow out of the living space. The temperature profile through the foundation was then used to calculate the total heat flow out of the foundation for both cases. This experiment showed that a significant energy savings is available with exterior foundation insulation. Over the course of 3 months, the heat-loss differential between the insulated and non-insulated foundations was 4.95 kilowatt-hours per lineal foot of foundation wall, for a ratio of 3:1. For a 2200 sq. ft home with a foundation perimeter 200 ft. long, this would amount to a savings of 990 kW-hrs in just 3 months, or 330 kW-hrs per month. Extrapolating to an 8-month heating year, we would expect to save over 2640 kW-hrs per year for such a home. The savings for a basement foundation, rather than a crawlspace, would be approach twice that amount, nearing 5280 kW-hr per year. Because these data were not collected during the coldest months of the year, they are conservative, and greater savings may be expected during colder periods.

Jeffrey M. Lacy; T. E. Rahl; G. A. Twitchell; R. G. Kobbe

2003-06-01T23:59:59.000Z

342

Development and Testing of Insulated Drill Pipe  

SciTech Connect

This project has comprised design, analysis, laboratory testing, and field testing of insulated drill pipe (IDP). This paper will briefly describe the earlier work, but will focus on results from the recently-completed field test in a geothermal well. Field test results are consistent with earlier analyses and laboratory tests, all of which support the conclusion that insulated drill pipe can have a very significant effect on circulating fluid temperatures. This will enable the use of downhole motors and steering tools in hot wells, and will reduce corrosion, deterioration of drilling fluids, and heat-induced failures in other downhole components.

Champness, T.; Finger, J.; Jacobson, R.

1999-07-07T23:59:59.000Z

343

Insulator coating for high temperature alloys method for producing insulator coating for high temperature alloys  

DOE Patents (OSTI)

A method for fabricating an electrically insulating coating on a surface is disclosed comprising coating the surface with a metal, and reacting the metal coated surface with a nonmetal so as to create a film on the metal-coated surface. Alternatively, the invention provides for a method for producing a noncorrosive, electrically insulating coating on a surface saturated with a nonmetal comprising supplying a molten fluid, dissolving a metal in the molten fluid to create a mixture, and contacting the mixture with the saturated surface. Lastly, the invention provides an electrically insulative coating comprising an underlying structural substrate coated with an oxide or nitride compound. 2 figs.

Park, J.H.

1998-06-23T23:59:59.000Z

344

Composite zeolite membranes  

DOE Patents (OSTI)

A new class of composite zeolite membranes and synthesis techniques therefor has been invented. These membranes are essentially defect-free, and exhibit large levels of transmembrane flux and of chemical and isotopic selectivity.

Nenoff, Tina M. (Albuquerque, NM); Thoma, Steven G. (Albuquerque, NM); Ashley, Carol S. (Albuquerque, NM); Reed, Scott T. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

345

Membrane Technology Workshop  

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

At the Membrane Technology Workshop (held July 24, 2012, in Rosemont, IL), stakeholders from industry and academia explored the status of membrane research and development (R&D). Participants...

346

Membrane Technology Workshop  

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

At the Membrane Technology Workshop (held July 24, 2012, in Rosemont, IL), stakeholders from industry and academia explored the status of membrane research and development (R&D). Participants ...

347

Hybrid adsorptive membrane reactor  

DOE Patents (OSTI)

A hybrid adsorbent-membrane reactor in which the chemical reaction, membrane separation, and product adsorption are coupled. Also disclosed are a dual-reactor apparatus and a process using the reactor or the apparatus.

Tsotsis, Theodore T. (Huntington Beach, CA); Sahimi, Muhammad (Altadena, CA); Fayyaz-Najafi, Babak (Richmond, CA); Harale, Aadesh (Los Angeles, CA); Park, Byoung-Gi (Yeosu, KR); Liu, Paul K. T. (Lafayette Hill, PA)

2011-03-01T23:59:59.000Z

348

Supertubes and Superconducting Membranes  

SciTech Connect

We show the equivalence between configurations that arise from string theory of type IIA, called supertubes, and superconducting membranes at the bosonic level. We find equilibrium and oscillating configurations for a tubular membrane carrying a current along its axis.

Cordero, Ruben; Miguel-Pilar, Zelin [Departamento de Fisica, Escuela Superior de Fisica y Matematicas del IPN, Edificio 9, Unidad Profesional 'Adolfo Lopez Mateos', Zacatenco, 07738 Mexico D.F. (Mexico)

2007-02-09T23:59:59.000Z

349

Estimating the Payback Period of Additional Insulation | Department of  

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

the Payback Period of Additional Insulation the Payback Period of Additional Insulation Estimating the Payback Period of Additional Insulation June 24, 2012 - 1:17pm Addthis Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. What does this mean for me? Even if you hire a contractor to do the work, adding insulation to your home will likely have an attractive payback. If you can gather the information and plug it into an equation, you can determine the payback of adding insulation to your home. Use the equation below to estimate the cost effectiveness of adding insulation in terms of the "years to payback" for savings in heating costs.

350

Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch  

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

EI2 Insulation EI2 Insulation Helps Anxious Pooch Find Calm in the Storm to someone by E-mail Share Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch Find Calm in the Storm on Facebook Tweet about Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch Find Calm in the Storm on Twitter Bookmark Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch Find Calm in the Storm on Google Bookmark Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch Find Calm in the Storm on Delicious Rank Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch Find Calm in the Storm on Digg Find More places to share Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch Find Calm in the Storm on AddThis.com...

351

Classification and characterization of topological insulators and superconductors  

E-Print Network (OSTI)

Weak topological insulators (WTI) . . . . . 1.4 Topologicalweak topological insulators (WTI). The surfaces of STIs haveSTI STM TI TRIM/TRIMs TRS TKNN VPT WTI one-dimension, two-

Mong, Roger

2012-01-01T23:59:59.000Z

352

Heat transport by residual gases in multilayer vacuum insulation  

Science Journals Connector (OSTI)

The results of an experimental investigation of residual gas heat-transfer in multilayer vacuum insulation are reported. The “thermal paradox” observed ... variation of the residual gas pressure in the insulation

R. S. Mikhal'chenko; A. G. Gerzhin; V. T. Arkhipov…

1968-01-01T23:59:59.000Z

353

Effects of foamed plastic insulation on severity of room fires  

Science Journals Connector (OSTI)

The results of a series of full scale room burn experiments with foamed plastic insulation in two walls indicate that the severity ... appear to be increased by the addition of foamed plastic insulation.

K. K. Choi

1986-02-01T23:59:59.000Z

354

Polyurethane and Polyisocyanurate Foams in External Tank Cryogenic Insulation  

Science Journals Connector (OSTI)

External tanks of the spacecrafts need not only efficient, but also safe cryogenic insulation materials and the issues of their development ... , polyurethane (PUR) or polyisocyanurate (PIR) foams’ cryogenic insulation

U. Stirna; I. Beverte; V. Yakushin; U. Cabulis

2013-01-01T23:59:59.000Z

355

Bubbles in Insulating Liquids: Stability in an Electric Field  

Science Journals Connector (OSTI)

...July 1964 research-article Bubbles in Insulating Liquids: Stability in an Electric Field C. G...Krasucki It is shown that a bubble of gas or liquid, immersed...of incompressible (liquid) bubbles immersed in an insulating liquid...

1964-01-01T23:59:59.000Z

356

Estimating the Payback Period of Additional Insulation | Department of  

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

Estimating the Payback Period of Additional Insulation Estimating the Payback Period of Additional Insulation Estimating the Payback Period of Additional Insulation June 24, 2012 - 1:17pm Addthis Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. What does this mean for me? Even if you hire a contractor to do the work, adding insulation to your home will likely have an attractive payback. If you can gather the information and plug it into an equation, you can determine the payback of adding insulation to your home. Use the equation below to estimate the cost effectiveness of adding insulation in terms of the "years to payback" for savings in heating costs.

357

Transport properties in the vicinity of Mott insulators  

E-Print Network (OSTI)

Understanding the states in the vicinity of the Mott insulator is crucial to understanding both the physics of the transition between a Mott insulating phase and a metallic phase and the physics of the cuprate high-temperature ...

Nave, Cody Patrick, 1980-

2007-01-01T23:59:59.000Z

358

Membrane Separations Research  

E-Print Network (OSTI)

MEMBRANE SEPARATIONS RESEARCH James R. Fair Chemical Engineering Department The University of Texas at Austin Austin, TX 78712 ABSTRACT The use of membranes for separating gaseous and liquid mixtures has grown dramatically in the past 15... years. Applications have been dominated by light gas separations and water purification. During this pioneering period, equipment containing the membrane suIfaces has been developed to a point where failures are minimal and the membranes themselves...

Fair, J. R.

359

Membrane Technology Workshop  

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

Presentation by Charles Page (Air Products & Chemicals, Inc.) for the Membrane Technology Workshop held July 24, 2012

360

Thermal Transport in High-Strength Polymethacrylimide (PMI) Foam Insulations  

Science Journals Connector (OSTI)

Thermal transport in high-strength polymethacrylimide (PMI) foam insulations is described, with special emphasis on the... $$3\\omega $$ ...

L. Qiu; X. H. Zheng; J. Zhu; D. W. Tang…

2014-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Corrugated outer sheath gas-insulated transmission line  

DOE Patents (OSTI)

A gas-insulated transmission line includes two transmission line sections each of which are formed of a corrugated outer housing enclosing an inner high-voltage conductor disposed therein, with insulating support means supporting the inner conductor within the outer housing and an insulating gas providing electrical insulation therebetween. The outer housings in each section have smooth end sections at the longitudinal ends thereof which are joined together by joining means which provide for a sealing fixed joint.

Kemeny, George A. (Pittsburgh, PA); Cookson, Alan H. (Churchill Boro, PA)

1981-01-01T23:59:59.000Z

362

Gas insulated transmission line having tapered particle trapping ring  

DOE Patents (OSTI)

A gas-insulated transmission line includes an outer sheath, an inner conductor, insulating supports and an insulating gas. A particle-trapping ring is secured to each insulating support, and it is comprised of a central portion and two tapered end portions. The ends of the particle trapping ring have a smaller diameter than the central portion of the ring, so as to enable the use of the particle trapping ring in a curved transmission line.

Cookson, Alan H. (Pittsburgh, PA)

1982-01-01T23:59:59.000Z

363

Polyphosphazene semipermeable membranes  

DOE Patents (OSTI)

A semipermeable, inorganic membrane is disclosed; the membrane is prepared from a phosphazene polymer and, by the selective substitution of the constituent groups bound to the phosphorous in the polymer structure, the selective passage of fluid from a feedstream can be controlled. Resistance to high temperatures and harsh chemical environments is observed in the use of the phosphazene polymers as semipermeable membranes.

Allen, Charles A. (Idaho Falls, ID); McCaffrey, Robert R. (Idaho Falls, ID); Cummings, Daniel G. (Idaho Falls, ID); Grey, Alan E. (Idaho Falls, ID); Jessup, Janine S. (Darlington, ID); McAtee, Richard E. (Idaho Falls, ID)

1988-01-01T23:59:59.000Z

364

Experimental Flash Pyrolysis of High Density1 PolyEthylene under Hybrid Propulsion Conditions2  

E-Print Network (OSTI)

1/25 Experimental Flash Pyrolysis of High Density1 PolyEthylene under Hybrid Propulsion Conditions2 Poly-Ethylene (HDPE) is studied6 up to 20 000 K.s-1 , under pressure up to 3.0 MPa and at temperature Pyrolysis (2013) 1-11" DOI : 10.1016/j.jaap.2013.02.014 #12;2/25 Keywords: Polyethylene; flash pyrolysis

Boyer, Edmond

365

Method and apparatus for filling thermal insulating systems  

DOE Patents (OSTI)

A method for filling insulated glazing units is disclosed. The method utilizes a vacuum chamber in which the insulated glazing units are placed. The insulated glazing units and vacuum chamber are evacuated simultaneously. The units are then refilled with a low conductance gas such as Krypton while the chamber is simultaneously refilled with air. 3 figs.

Arasteh, D.K.

1992-01-14T23:59:59.000Z

366

Molecular Cell Mode of Regulation and the Insulation  

E-Print Network (OSTI)

Molecular Cell Article Mode of Regulation and the Insulation of Bacterial Gene Expression Vered.molcel.2012.04.032 SUMMARY A gene can be said to be insulated from environ- mental variations if its the insulation of the lac promoter of E. coli and of synthetic constructs in which the transcription factor CRP

367

MOTT INSULATORS, SPIN LIQUIDS AND QUANTUM DISORDERED SUPERCONDUCTIVITY  

E-Print Network (OSTI)

COURSE 7 MOTT INSULATORS, SPIN LIQUIDS AND QUANTUM DISORDERED SUPERCONDUCTIVITY MATTHEW P.A. FISHER insulators and quantum magnetism 583 3.1 Spin models and quantum magnetism . . . . . . . . . . . . . . . . . . . . . . . . . . . . 637 #12;MOTT INSULATORS, SPIN LIQUIDS AND QUANTUM DISORDERED SUPERCONDUCTIVITY Matthew P.A. Fisher

368

Insulation of the ?F Regulatory System in Bacillus subtilis  

Science Journals Connector (OSTI)

...for Microbiology NOTE GENE REGULATION Insulation of the sF Regulatory System in Bacillus...kinases and phosphatases. We report that insulation of the sF pathway from the sB pathway...the sB pathway. We propose that this insulation is achieved both by the action of the...

Karen Carniol; Tae-Jong Kim; Chester W. Price; Richard Losick

2004-07-01T23:59:59.000Z

369

Topological insulators and superconductors Xiao-Liang Qi  

E-Print Network (OSTI)

Topological insulators and superconductors Xiao-Liang Qi Microsoft Research, Station Q, Elings Hall, California 94305, USA (Received 2 August 2010; published 14 October 2011) Topological insulators are new states of quantum matter which cannot be adiabatically connected to conventional insulators

Wu, Zhigang

370

Effect of relative humidity on fungal colonization of fiberglass insulation.  

Science Journals Connector (OSTI)

...on fungal colonization of fiberglass insulation. I M Ezeonu J A Noble R B Simmons D...on fungal colonization of fiberglass insulation. | Fiberglass duct liners and fiberglass...on Fungal Colonization of Fiberglass Insulation I. M. EZEONU,1 J. A. NOBLE...

I M Ezeonu; J A Noble; R B Simmons; D L Price; S A Crow; D G Ahearn

1994-06-01T23:59:59.000Z

371

THERMAL CONDUCTIVITY OF POWDER INSULATIONS FOR CRYOGENIC STORAGE  

E-Print Network (OSTI)

THERMAL CONDUCTIVITY OF POWDER INSULATIONS FOR CRYOGENIC STORAGE VESSELS Y. S. Choi1 '3 , M. N), powder insulation, and foam insulation, are used in the cryogenic storage vessels. Among CP823, Advances in Cjyogenie Engineering: Transactions of the Cryogenic Engineering Conference - CEC, Vol. 51, edited by J. G

Chang, Ho-Myung

372

Vacuum insulation tandem accelerator for B. Bayanov1  

E-Print Network (OSTI)

273 Vacuum insulation tandem accelerator for NCT B. Bayanov1 , Yu. Belchenko1 , V. Belov1 , G. Fig. 1 shows the construction of vacuum insulation tandem accelerator developed at BINP, as a base accelerator with vacuum insulation. After charge- exchange of negative hydrogen ion in proton inside charge

Taskaev, Sergey Yur'evich

373

Study on the heat transfer of complex-vacuum-multilayer-insulation tank after sudden loss of insulation vacuum  

Science Journals Connector (OSTI)

This paper experimentally and theoretically investigated heat transfer process of complex-vacuum-multilayer-insulation cryogenic tank after a sudden loss of insulation vacuum (SLIV). The experiments were conducte...

M. Zhu; R. S. Wang

2012-11-01T23:59:59.000Z

374

TRANSITION DE MOTT METAL-INSULATOR TRANSITIONS  

E-Print Network (OSTI)

predominantly non-trivalent ions favor the metallicstate. I. Introduction. -Transition metal oxides form a class that such a transition would be dis- continuous as a function of volume [8], and he later proposed a phase diagramTRANSITION DE MOTT METAL-INSULATOR TRANSITIONS IN TRANSITION METAL OXIDES by D. B. McWHAN, A. MENTH

Paris-Sud XI, Université de

375

Insulated dipole antennas for heating oil shale  

Science Journals Connector (OSTI)

Insulated dipole antennas in the HF band are potentially useful in heating shale i n s i t u to extract oil. To help evaluate the efficiency of such antennas the spatial distribution of the power absorbed per unit volume in the shale is computed.

John P. Casey; Rajeev Bansal

1987-01-01T23:59:59.000Z

376

Finite element analysis of substation composite insulators  

Science Journals Connector (OSTI)

Composite insulators are rapidly replacing their porcelain counterparts in electrical substation applications. These insulators consist of a glass-reinforced polymer (GRP) rod, with two metal end fittings radially crimped onto the ends of the rod during assembly. In this paper, axisymmetric finite element models are developed to evaluate the mechanical performance of composite insulators under externally applied axial compression. The analyses are performed by assuming both a perfectly bonded interface between the composite rod and the end fittings, and an imperfect interface which permits large relative sliding with Coulomb friction. Results indicate that the perfect interface model is unrealistic since it predicts singular stresses at the interface comer and an overall linear structural response. On the other hand, the imperfect interface model is found to simulate accurately the structural non-linearity caused by relative sliding of the GRP rod within the end fittings. The imperfect interface model has therefore been used to evaluate the effects of interface friction, and the extent of crimping, on the maximum load-bearing capacity of substation composite insulators.

A. Bansal; A. Schubert; M.V. Balakrishnan; M. Kumosa

1995-01-01T23:59:59.000Z

377

ASBESTOS PIPE-INSULATION REMOVAL ROBOT SYSTEM  

SciTech Connect

This final topical report details the development, experimentation and field-testing activities for a robotic asbestos pipe-insulation removal robot system developed for use within the DOE's weapon complex as part of their ER and WM program, as well as in industrial abatement. The engineering development, regulatory compliance, cost-benefit and field-trial experiences gathered through this program are summarized.

Unknown

2000-09-15T23:59:59.000Z

378

Laminated insulators having heat dissipation means  

DOE Patents (OSTI)

A laminated body is provided with heat dissipation capabilities. The insulator body is formed by dielectric layers interleaved with heat conductive layers, and bonded by an adhesive to form a composite structure. The heat conductive layers include provision for connection to an external thermal circuit.

Niemann, R.C.; Mataya, K.F.; Gonczy, J.D.

1980-04-24T23:59:59.000Z

379

Noise and the Sound Insulation of Buildings  

Science Journals Connector (OSTI)

...Noise and the Sound Insulation of Buildings F. Ingerslev It is claimed that noise...well-being. An outstanding task for the building industry in the 1980s is to ensure a proper noise climate in new buildings. The target must be to obtain a noise...

1972-01-01T23:59:59.000Z

380

Cementitious building material incorporating end-capped polyethylene glycol as a phase change material  

DOE Patents (OSTI)

A cementitious composition comprising a cementitious material and polyethylene glycol or end-capped polyethylene glycol as a phase change material, said polyethylene glycol and said end-capped polyethylene glycol having a molecular weight greater than about 400 and a heat of fusion greater than about 30 cal/g; the compositions are useful in making pre-formed building materials such as concrete blocks, brick, dry wall and the like or in making poured structures such as walls or floor pads; the glycols can be encapsulated to reduce their tendency to retard set.

Salyer, Ival O. (Dayton, OH); Griffen, Charles W. (Mason, OH)

1986-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Enhanced membrane gas separations  

SciTech Connect

An improved membrane gas separation process is described comprising: (a) passing a feed gas stream to the non-permeate side of a membrane system adapted for the passage of purge gas on the permeate side thereof, and for the passage of the feed gas stream in a counter current flow pattern relative to the flow of purge gas on the permeate side thereof, said membrane system being capable of selectively permeating a fast permeating component from said feed gas, at a feed gas pressure at or above atmospheric pressure; (b) passing purge gas to the permeate side of the membrane system in counter current flow to the flow of said feed gas stream in order to facilitate carrying away of said fast permeating component from the surface of the membrane and maintaining the driving force for removal of the fast permeating component through the membrane from the feed gas stream, said permeate side of the membrane being maintained at a subatmospheric pressure within the range of from about 0.1 to about 5 psia by vacuum pump means; (c) recovering a product gas stream from the non-permeate side of the membrane; and (d) discharging purge gas and the fast permeating component that has permeated the membrane from the permeate side of the membrane, whereby the vacuum conditions maintained on the permeate side of the membrane by said vacuum pump means enhance the efficiency of the gas separation operation, thereby reducing the overall energy requirements thereof.

Prasad, R.

1993-07-13T23:59:59.000Z

382

Schottky and other electrical phenomena in polyethylene crystals  

E-Print Network (OSTI)

polarities anti scale factors INT RODU C T ION Assuming that the prcdornin" nt nzcchanism of electronic con- duction oi n:ic roscopic crystal s ol polyethylene is Schoftky emission, Schottky plot. . ; of this concluction should shove pc riodic deviations...&hiskcr electrode. His I ? V curves for the crystals shov cd ciia raut eristic s similar to those of junction diodes except I'or thc appearance of a. negative resist- ance region at so&no value of applied potential. He suggested a model based on two effects...

Stoltz, Richard Joseph

2012-06-07T23:59:59.000Z

383

List of Equipment Insulation Incentives | Open Energy Information  

Open Energy Info (EERE)

Insulation Incentives Insulation Incentives Jump to: navigation, search The following contains the list of 242 Equipment Insulation Incentives. CSV (rows 1 - 242) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP Ohio - Commercial Energy Efficiency Rebate Program (Ohio) Utility Rebate Program Ohio Commercial Fed. Government Industrial Institutional Local Government Nonprofit Schools State Government Central Air conditioners Chillers Custom/Others pending approval Energy Mgmt. Systems/Building Controls Equipment Insulation Heat pumps Lighting Lighting Controls/Sensors Motor VFDs Motors Programmable Thermostats Refrigerators Yes AEP Public Service Company of Oklahoma - Residential Efficiency Rebate Program (Oklahoma) Utility Rebate Program Oklahoma Residential Building Insulation

384

Where to Insulate in a Home | Department of Energy  

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

Where to Insulate in a Home Where to Insulate in a Home Where to Insulate in a Home November 26, 2013 - 1:34pm Addthis Examples of where to insulate. 1. In unfinished attic spaces, insulate between and over the floor joists to seal off living spaces below. (1A) attic access door 2. In finished attic rooms with or without dormer, insulate (2A) between the studs of "knee" walls, (2B) between the studs and rafters of exterior walls and roof, (2C) and ceilings with cold spaces above. (2D) Extend insulation into joist space to reduce air flows. 3. All exterior walls, including (3A) walls between living spaces and unheated garages, shed roofs, or storage areas; (3B) foundation walls above ground level; (3C) foundation walls in heated basements, full wall either interior or exterior.

385

Savings Project: Insulate Hot Water Pipes for Energy Savings | Department  

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

Insulate Hot Water Pipes for Energy Savings Insulate Hot Water Pipes for Energy Savings Savings Project: Insulate Hot Water Pipes for Energy Savings Addthis Project Level Medium Energy Savings $8-$12 annually Time to Complete 3 hours for a small house Overall Cost $10-$15 Insulating water pipes can save you water, energy, and money. | Photo courtesy of iStockphoto.com/nsj-images Insulating water pipes can save you water, energy, and money. | Photo courtesy of iStockphoto.com/nsj-images Insulating your hot water pipes reduces heat loss and can raise water temperature 2°F-4°F hotter than uninsulated pipes can deliver, allowing for a lower water temperature setting. You also won't have to wait as long for hot water when you turn on a faucet or showerhead, which helps conserve water. Paying for someone to insulate your pipes-as a project on its own-may

386

Building Technologies Office: Advanced Insulation for High Performance  

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

Advanced Insulation for Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project to someone by E-mail Share Building Technologies Office: Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project on Facebook Tweet about Building Technologies Office: Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project on Twitter Bookmark Building Technologies Office: Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project on Google Bookmark Building Technologies Office: Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project on Delicious Rank Building Technologies Office: Advanced Insulation for High

387

Where to Insulate in a Home | Department of Energy  

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

Where to Insulate in a Home Where to Insulate in a Home Where to Insulate in a Home November 26, 2013 - 1:34pm Addthis Examples of where to insulate. 1. In unfinished attic spaces, insulate between and over the floor joists to seal off living spaces below. (1A) attic access door 2. In finished attic rooms with or without dormer, insulate (2A) between the studs of "knee" walls, (2B) between the studs and rafters of exterior walls and roof, (2C) and ceilings with cold spaces above. (2D) Extend insulation into joist space to reduce air flows. 3. All exterior walls, including (3A) walls between living spaces and unheated garages, shed roofs, or storage areas; (3B) foundation walls above ground level; (3C) foundation walls in heated basements, full wall either interior or exterior.

388

Pipeline system insulation: Thermal insulation and corrosion prevention. (Latest citations from the Rubber and Plastics Research Association database). Published Search  

SciTech Connect

The bibliography contains citations concerning thermal and corrosion insulation of pipeline systems used to transport liquids and gases. Topics include thermal aging of polyurethane used for foam heating pipes, extrusion film pipeline insulation materials and processes, flexible expanded nitrile rubber pipeline insulation with Class 1 fire rating, and underground fiberglass reinforced polyester insulated pipeline systems. Applications in solar heating systems; underground water, oil, and gas pipelines; interior hot and cold water lines under seawater; and chemical plant pipeline system insulation are included. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

NONE

1995-11-01T23:59:59.000Z

389

Pipeline system insulation: Thermal insulation and corrosion prevention. (Latest citations from the Rubber and Plastics Research Association database). Published Search  

SciTech Connect

The bibliography contains citations concerning thermal and corrosion insulation of pipeline systems used to transport liquids and gases. Topics include thermal aging of polyurethane used for foam heating pipes, extrusion film pipeline insulation materials and processes, flexible expanded nitrile rubber pipeline insulation with Class 1 fire rating, and underground fiberglass reinforced polyester insulated pipeline systems. Applications in solar heating systems; underground water, oil, and gas pipelines; interior hot and cold water lines under seawater; and chemical plant pipeline system insulation are included. (Contains 250 citations and includes a subject term index and title list.)

NONE

1995-01-01T23:59:59.000Z

390

Pipeline system insulation: Thermal insulation and corrosion prevention. (Latest citations from the Rubber and Plastics Research Association database). Published Search  

SciTech Connect

The bibliography contains citations concerning thermal and corrosion insulation of pipeline systems used to transport liquids and gases. Topics include thermal aging of polyurethane used for foam heating pipes, extrusion film pipeline insulation materials and processes, flexible expanded nitrile rubber pipeline insulation with Class 1 fire rating, and underground fiberglass reinforced polyester insulated pipeline systems. Applications in solar heating systems; underground water, oil, and gas pipelines; interior hot and cold water lines under seawater; and chemical plant pipeline system insulation are included. (Contains 250 citations and includes a subject term index and title list.)

Not Available

1994-05-01T23:59:59.000Z

391

Engineering design of the Z magnetically-insulated transmission lines and insulator stack  

SciTech Connect

A 3.3 m diameter cylindrical insulator stack and a set of 3 m diameter conical magnetically insulated transmission lines (MITLs) were built for the Z accelerator. The 1.7 m tall insulator stack operates at {approx}20 MA and 2.5-3.5 MV, and was instrumented with 12 current and 24 voltage monitors. The insulator stack was concentrically and azimuthally aligned within 1.5 mm. The stack, containing 22 crosslinked polystyrene insulators and 18 grading rings, was designed to provide vertical stability for the MITLs and to resist radial buckling. 2-D and 3-D static finite element analyses (FEA) were used in designing the MITLs to limit gravity deflections to less than .25 mm. 2-D FEA dynamic analyses were done to predict motion and to help design features to restrict damage. Each MITL is divided into four concentric zones which fasten together in a way which facilitates fabrication, limits the extent of possible damage and allows for future changes at minimal cost. The tapered MITLs are supported by feedthrough rings in the insulator stack so that the gaps at small radius are adjustable from 0 to 22 mm. The MITL anodes were instrumented with 24 current monitors and have 48 additional diagnostic locations available. The MITLs were fabricated from 304L stainless steel except the outer anode sections, which were made from 6061-T6 aluminum alloy. Procedures were developed for fabrication of the large and small diameter MITL cones, as well as for the feedthrough rings and grading rings of the stack. The power-flow surfaces were successfully machined to within {+-}.25 mm of the specified contours. A large, multi-trolley MITL handling system was designed to allow for removal, cleaning and replacement of the MITLs for each shot, at a shot rate of 1.5 shots/day. Additional equipment allows for cleaning of the insulators.

Ives, H.C.; Van De Valde, D.M. [EG& G MSI, Albuquerque, NM (United States); Long, F.W.; Smith, J.W. [Sandia National Labs., Albuquerque, NM (United States)] [and others

1997-08-01T23:59:59.000Z

392

Insertion Mechanism of a Poly(ethylene oxide)-poly(butylene oxide) Block Copolymer into a DPPC Monolayer  

SciTech Connect

Interactions between amphiphilic block copolymers and lipids are of medical interest for applications such as drug delivery and the restoration of damaged cell membranes. A series of monodisperse poly(ethylene oxide)-poly(butylene oxide) (EOBO) block copolymers were obtained with two ratios of hydrophilic/hydrophobic block lengths. We have explored the surface activity of EOBO at a clean interface and under 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) monolayers as a simple cell membrane model. At the same subphase concentration, EOBO achieved higher equilibrium surface pressures under DPPC compared to a bare interface, and the surface activity was improved with longer poly(butylene oxide) blocks. Further investigation of the DPPC/EOBO monolayers showed that combined films exhibited similar surface rheology compared to pure DPPC at the same surface pressures. DPPC/EOBO phase separation was observed in fluorescently doped monolayers, and within the liquid-expanded liquid-condensed coexistence region for DPPC, EOBO did not drastically alter the liquid-condensed domain shapes. Grazing incidence X-ray diffraction (GIXD) and X-ray reflectivity (XRR) quantitatively confirmed that the lattice spacings and tilt of DPPC in lipid-rich regions of the monolayer were nearly equivalent to those of a pure DPPC monolayer at the same surface pressures.

Leiske, Danielle L.; Meckes, Brian; Miller, Chad E.; Wu, Cynthia; Walker, Travis W.; Lin, Binhua; Meron, Mati; Ketelson, Howard A.; Toney, Michael F.; Fuller, Gerald G. (Stanford); (SLAC); (UC); (Alcan)

2012-02-06T23:59:59.000Z

393

Accepted Manuscript Kinetic Modelling of High Density PolyEthylene Pyrolysis: Part 1. Comparison of  

E-Print Network (OSTI)

Accepted Manuscript Kinetic Modelling of High Density PolyEthylene Pyrolysis: Part 1. Comparison this article as: Gascoin N, Navarro-Rodriguez A, Gillard P, Mangeot A, Kinetic Modelling of High Density PolyEthylene.polymdegradstab.2012.05.008 #12;M ANUSCRIPT ACCEPTED ACCEPTED MANUSCRIPT 1 Kinetic Modelling of High Density PolyEthylene

Paris-Sud XI, Université de

394

Topological Response Theory of Doped Topological Insulators  

Science Journals Connector (OSTI)

We generalize the topological response theory of three-dimensional topological insulators (TI) to metallic systems—specifically, doped TI with finite bulk carrier density and a time-reversal symmetry breaking field near the surface. We show that there is an inhomogeneity-induced Berry phase contribution to the surface Hall conductivity that is completely determined by the occupied states and is independent of other details such as band dispersion and impurities. In the limit of zero bulk carrier density, this intrinsic surface Hall conductivity reduces to the half-integer quantized surface Hall conductivity of TI. Based on our theory we predict the behavior of the surface Hall conductivity for a doped topological insulator with a top gate, which can be directly compared with experiments.

Maissam Barkeshli and Xiao-Liang Qi

2011-11-07T23:59:59.000Z

395

Vacuum insulation properties of phenolic foam  

Science Journals Connector (OSTI)

Characteristic properties of phenolic foam as the interstitial material of a vacuum insulation panel are investigated experimentally. For the measurement of effective thermal conductivity, a vacuum guarded hot plate (VGHP) apparatus is used and the conductivity is measured at various vacuum levels. Radiative properties are found using a Fourier transform infrared spectroscopy (FT-IR) device. Solid conductivity is estimated using the porosity of the foam. Effective thermal conductivity at high level of vacuum is measured to be 5 mW/m K which is sum of solid conductivity (2.56 mW/m K) and radiative conductivity (2.44 mW/m K) with 5% of measurement uncertainty. The pore size of the foam is estimated to be 260 ?m using rarefied gas conduction theory. This ensures insulation performance of phenolic foam up to about 10?3 atm. Other practical characteristics of phenolic foam as the VIP core material are also discussed.

Jongmin Kim; Jae-Hyug Lee; Tae-Ho Song

2012-01-01T23:59:59.000Z

396

Apparatus for insulating windows and the like  

DOE Patents (OSTI)

Apparatus for insulating window openings through walls and the like includes a thermal shutter, a rail for mounting the shutter adjacent to the window opening and a coupling for connecting the shutter to the rail. The thermal shutter includes an insulated panel adhered to frame members which surround the periphery of the panel. The frame members include a hard portion for providing the frame and a soft portion for providing a seal with that portion of the wall adjacent to the periphery of the opening. The coupling means is preferably integral with the attachment rail. According to a preferred embodiment, the coupling means includes a continuous hinge of reduced thickness. The thermal shutter can be permanently attached, hinged, bi-folded, or sliding with respect to the window and wall. A distribution method is to market the apparatus in kit'' form. 11 figs.

Mitchell, R.A.

1984-06-19T23:59:59.000Z

397

Apparatus for insulating windows and the like  

DOE Patents (OSTI)

Apparatus for insulating window openings through walls and the like includes a thermal shutter, a rail for mounting the shutter adjacent to the window opening and a coupling for connecting the shutter to the rail. The thermal shutter includes an insulated panel adhered to frame members which surround the periphery of the panel. The frame members include a hard portion for providing the frame and a soft portion for providing a seal with that portion of the wall adjacent to the periphery of the opening. The coupling means is preferably integral with the attachment rail. According to a preferred embodiment, the coupling means includes a continuous hinge of reduced thickness. The thermal shutter can be permanently attached, hinged, bi-folded, or sliding with respect to the window and wall. A distribution method is to market the apparatus in "kit" form.

Mitchell, Robert A. (R.D. #1, Box 462-A, Voorheesville, NY 12186)

1984-01-01T23:59:59.000Z

398

Contaminant trap for gas-insulated apparatus  

DOE Patents (OSTI)

A contaminant trap for a gas-insulated electrical conductor is provided. A resinous dielectric body such as Kel-F wax, grease or other sticky polymeric or oligomeric compound is disposed on the inside wall of the outer housing for the conductor. The resinous body is sufficiently sticky at ambient temperatures to immobilize contaminant particles in the insulating gas on the exposed surfaces thereof. An electric resistance heating element is disposed in the resinous body to selectively raise the temperature of the resinous body to a molten state so that the contaminant particles collected on the surface of the body sink into the body so that the surface of the resinous body is renewed to a particle-less condition and, when cooled, returns to a sticky collecting surface.

Adcock, James L. (Knoxville, TN); Pace, Marshall O. (Knoxville, TN); Christophorou, Loucas G. (Oak Ridge, TN)

1984-01-01T23:59:59.000Z

399

Substituted polyacetylene separation membrane  

DOE Patents (OSTI)

A separation membrane is described which is useful for gas separation, particularly separation of C{sub 2+} hydrocarbons from natural gas. The invention encompasses the membrane itself, methods of making it and processes for using it. The membrane comprises a polymer having repeating units of a hydrocarbon-based, disubstituted polyacetylene, having the general formula shown in the accompanying diagram, wherein R{sub 1} is chosen from the group consisting of C{sub 1}-C{sub 4} alkyl and phenyl, and wherein R{sub 2} is chosen from the group consisting of hydrogen and phenyl. In the most preferred embodiment, the membrane comprises poly(4-methyl-2-pentyne) [PMP]. The membrane exhibits good chemical resistance and has super-glassy properties with regard to separating certain large, condensable permeant species from smaller, less-condensable permeant species. The membranes may also be useful in other fluid separations. 4 figs.

Pinnau, I.; Morisato, Atsushi

1998-01-13T23:59:59.000Z

400

Substituted polyacetylene separation membrane  

DOE Patents (OSTI)

A separation membrane useful for gas separation, particularly separation of C.sub.2+ hydrocarbons from natural gas. The invention encompasses the membrane itself, methods of making it and processes for using it. The membrane comprises a polymer having repeating units of a hydrocarbon-based, disubstituted polyacetylene, having the general formula: ##STR1## wherein R.sub.1 is chosen from the group consisting of C.sub.1 -C.sub.4 alkyl and phenyl, and wherein R.sub.2 is chosen from the group consisting of hydrogen and phenyl. In the most preferred embodiment, the membrane comprises poly(4-methyl-2-pentyne) ›PMP!. The membrane exhibits good chemical resistance and has super-glassy properties with regard to separating certain large, condensable permeant species from smaller, less-condensable permeant species. The membranes may also be useful in other fluid separations.

Pinnau, Ingo (Palo Alto, CA); Morisato, Atsushi (Tokyo, JP)

1998-01-13T23:59:59.000Z

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Production of Polyethylene Terephthalate using a Nonmetallic Catalyst Dr. Marsha Winston1, Jared Langson2, Angus Ferguson2, Dr. Robert Posey2  

E-Print Network (OSTI)

Production of Polyethylene Terephthalate using a Nonmetallic Catalyst Dr. Marsha Winston1, Jared Department of Chemistry Polyethylene terephthalate (PET) is a condensation polymer of terephthalic acid (HOOC

402

DEVELOPMENT OF PROTOTYPE TITANATE ION EXCHANGE LOADED MEMBRANES FOR STRONTIUM, CESIUM AND ACTINIDE DECONTAMINATION FROM AQUEOUS MEDIA  

SciTech Connect

We have successfully incorporated high surface area particles of titanate ion exchange materials (monosodium titanate and crystalline silicotitanate) with acceptable particle size distribution into porous and inert support membrane fibrils consisting of polytetrafluoroethylene (Teflon{reg_sign}), polyethylene and cellulose materials. The resulting membrane sheets, under laboratory conditions, were used to evaluate the removal of surrogate radioactive materials for cesium-137 and strontium-90 from high caustic nuclear waste simulants. These membrane supports met the nominal requirement for nonchemical interaction with the embedded ion exchange materials and were porous enough to allow sufficient liquid flow. Some of this 47-mm size stamped out prototype titanium impregnated ion exchange membrane discs was found to remove more than 96% of dissolved cesium-133 and strontium-88 from a caustic nuclear waste salt simulants. Since in traditional ion exchange based column technology monosodium titanate (MST) is known to have great affinity for the sorbing of other actinides like plutonium, neptunium and even uranium, we expect that the MST-based membranes developed here, although not directly evaluated for uptake of these three actinides because of costs associated with working with actinides which do not have 'true' experimental surrogates, would also show significant affinity for these actinides in aqueous media. It was also observed that crystalline silicotitanate impregnated polytetrafluoroethylene or polyethylene membranes became less selective and sorbed both cesium and strontium from the caustic aqueous salt simulants.

Oji, L; Keisha Martin, K; David Hobbs, D

2008-05-30T23:59:59.000Z

403

Superconducting nano-layer coating without insulator  

E-Print Network (OSTI)

The superconducting nano-layer coating without insulator layer is studied. The magnetic-field distribution and the forces acting on a vortex are derived. Using the derived forces, the vortex-penetration field and the lower critical magnetic field can be discussed. The vortex-penetration field is identical with the multilayer coating, but the lower critical magnetic field is not. Forces acting on a vortex from the boundary of two superconductors play an important role in evaluations of the free energy.

Kubo, Takayuki

2014-01-01T23:59:59.000Z

404

Topological insulators with arbitrarily tunable entanglement  

E-Print Network (OSTI)

We elucidate how Chern and topological insulators fulfill an area law for the entanglement entropy. By explicit construction of a family of lattice Hamiltonians, we are able to demonstrate that the area law contribution can be tuned to an arbitrarily small value, but is topologically protected from vanishing exactly. We prove this by introducing novel methods to bound entanglement entropies from correlations using perturbation bounds, drawing intuition from ideas of quantum information theory. This rigorous approach is complemented by an intuitive understanding in terms of entanglement edge states. These insights have a number of important consequences: The area law has no universal component, no matter how small, and the entanglement scaling cannot be used as a faithful diagnostic of topological insulators. This holds for all Renyi entropies which uniquely determine the entanglement spectrum which is hence also non-universal. The existence of arbitrarily weakly entangled topological insulators furthermore opens up possibilities of devising correlated topological phases in which the entanglement entropy is small and which are thereby numerically tractable, specifically in tensor network approaches.

J. C. Budich; J. Eisert; E. J. Bergholtz

2013-11-13T23:59:59.000Z

405

Smoldering combustion hazards of thermal insulation materials  

SciTech Connect

Work on the smolder ignitability in cellulosic insulation and on thermal analytical characterization of the oxidation of this material is presented. Thermal analysis (TGA and DSC) shows that both retarded and unretarded cellulosic insulation oxidizes in two overall stages, both of which are exothermic. The second stage (oxidation of the char left as a residue of the first stage) is much more energetic on a unit mass basis than the first. However, kinetics and a sufficient exothermicity make the first stage responsible for ignition in most realistic circumstances. Existing smolder retardants such as boric acid have their major effect on the kinetics of the second oxidation stage and thus produce only a rather small (20/sup 0/C) increase in smolder ignition temperature. Several simplified analogs of attic insulations have been tested to determine the variability of minimum smolder ignition temperature. These employed planar or tubular constant temperature heat sources in a thermal environment quite similar to a realistic attic application. Go/no-go tests provided the borderline (minimum) ignition temperature for each configuration. The wide range (150/sup 0/C) of minimum ignition temperatures confirmed the predominant dependence of smolder ignition on heat flow geometry. Other factors (bulk density, retardants) produced much less effect on ignitability.

Ohlemiller, T.J.; Rogers, F.E.

1980-07-01T23:59:59.000Z

406

MacroCapTM SP is a cation exchanger designed for the purification of large biomolecules such as polyethylene  

E-Print Network (OSTI)

such as polyethylene glycol (PEG)-modified proteins (i.e., PEGylated proteins) that are intended for use

Lebendiker, Mario

407

Model Cell Membranes  

Science Journals Connector (OSTI)

... are being used as model systems to test particular hypotheses in membrane transport. Thus, Tosteson and his colleagues (Andreoli et al., J. Gen. PhysioL, 50, 1729; ...

A Correspondent

1968-01-13T23:59:59.000Z

408

Anion exchange membrane  

DOE Patents (OSTI)

An anion exchange membrane and fuel cell incorporating the anion exchange membrane are detailed in which proazaphosphatrane and azaphosphatrane cations are covalently bonded to a sulfonated fluoropolymer support along with anionic counterions. A positive charge is dispersed in the aforementioned cations which are buried in the support to reduce the cation-anion interactions and increase the mobility of hydroxide ions, for example, across the membrane. The anion exchange membrane has the ability to operate at high temperatures and in highly alkaline environments with high conductivity and low resistance.

Verkade, John G; Wadhwa, Kuldeep; Kong, Xueqian; Schmidt-Rohr, Klaus

2013-05-07T23:59:59.000Z

409

Unique battery with an active membrane separator having uniform physico-chemically functionalized ion channels and a method making the same  

DOE Patents (OSTI)

The invention relates to a unique battery having an active, porous membrane and method of making the same. More specifically the invention relates to a sealed battery system having a porous, metal oxide membrane with uniform, physicochemically functionalized ion channels capable of adjustable ionic interaction. The physicochemically-active porous membrane purports dual functions: an electronic insulator (separator) and a unidirectional ion-transporter (electrolyte). The electrochemical cell membrane is activated for the transport of ions by contiguous ion coordination sites on the interior two-dimensional surfaces of the trans-membrane unidirectional pores. The membrane material is designed to have physicochemical interaction with ions. Control of the extent of the interactions between the ions and the interior pore walls of the membrane and other materials, chemicals, or structures contained within the pores provides adjustability of the ionic conductivity of the membrane.

Gerald, II, Rex E. (Brookfield, IL); Ruscic, Katarina J. (Chicago, IL); Sears, Devin N. (Spruce Grove, CA); Smith, Luis J. (Natick, MA); Klingler, Robert J. (Glenview, IL); Rathke, Jerome W. (Homer Glen, IL)

2012-02-21T23:59:59.000Z

410

Deformation-Induced Color Changes in Mechanochromic Polyethylene Brent R. Crenshaw, Mark Burnworth, Devang Khariwala, Anne Hiltner,  

E-Print Network (OSTI)

Deformation-Induced Color Changes in Mechanochromic Polyethylene Blends Brent R. Crenshaw, Mark and systematic investigation of mechanochromic, melt-processed blends between a series of polyethylenes (PE-density polyethylene (LLDPE) of moderately high density (0.94 g cm-3). In samples that were slowly cooled from the melt

Mather, Patrick T.

411

Crystallization in the Thin and Ultrathin Films of Poly(ethylene-vinyl acetate) and Linear Low-Density Polyethylene  

E-Print Network (OSTI)

-Density Polyethylene Y. Wang, S. Ge, M. Rafailovich,*, J. Sokolov, Y. Zou, H. Ade, J. Lu1 ning,§ A. Lustiger, and G(ethylene-vinyl acetate) and linear low-density polyethylene (LLDPE) films spun-cast from the polymer/toluene solutions spherulite to sheaflike ag- gregates in polyethylene thin films at a critical thickness of 400 nm. Scho

412

Friction and wear behavior of ultra-high molecular weight polyethylene as a function of polymer crystallinity  

E-Print Network (OSTI)

Friction and wear behavior of ultra-high molecular weight polyethylene as a function of polymer-grade ultra-high molecular weight polyethylene (UHMWPE) (GUR 1050 resin) were evaluated as a function replacements; Ultra-high molecular weight polyethylene (UHMWPE); Crystallinity; Friction; Wear 1. Introduction

Lin, Zhiqun

413

Quantitative Evaluation of Radiation Damage to Polyethylene Terephthalate by Soft X-rays and High-energy Electrons  

E-Print Network (OSTI)

Quantitative Evaluation of Radiation Damage to Polyethylene Terephthalate by Soft X-rays and High to polyethylene terephthalate (PET) caused by soft X-rays and energetic electrons have been measured using to polyethylene terephalate (PET) by TEM-EELS versus nonspatially resolved NEXAFS.5 That study also reported

Hitchcock, Adam P.

414

Analysis of polyethylene wear debris using micro-Raman spectroscopy: A report on the presence of beta-carotene  

E-Print Network (OSTI)

Analysis of polyethylene wear debris using micro-Raman spectroscopy: A report on the presence- high molecular weight polyethylene wear debris isolated from revised knee replacements. The novel the chemical nature of individual, retrieved polyethylene particles. The analysis revealed the presence

Hahn, David W.

415

Insight into the Molecular Arrangement of High-Density Polyethylene Polymer Chains in Blends of Polystyrene/High-  

E-Print Network (OSTI)

Insight into the Molecular Arrangement of High-Density Polyethylene Polymer Chains in Blends of Polystyrene/High- Density Polyethylene from Differential Scanning Calorimetry and Raman Techniques JAYANT/high-density polyethylene (PS/HDPE) blends were synthe- sized by melt blending in a single screw extruder. Co

416

Effect of Polyethylene Glycol, Alkyl, and Oligonucleotide Spacers on the Binding, Secondary Structure, and Self-Assembly of Fractalkine  

E-Print Network (OSTI)

Effect of Polyethylene Glycol, Alkyl, and Oligonucleotide Spacers on the Binding, Secondary-amphiphiles with no spacer (NoSPR), polyethylene glycol (PEG4, PEG8, PEG24), alkyl (C12 and C24), or oligonucleotide (T10 a polyethylene glycol (PEG) or an oligo-T (thymine) spacer is added to the aptamer, especially when attaching

Kokkoli, Efie

417

Effects of polyethylene mulch in a short-rotation, poplar plantation vary with weed-control strategies,  

E-Print Network (OSTI)

Effects of polyethylene mulch in a short-rotation, poplar plantation vary with weed polyethylene mulch (poly mulch) across a range of site conditions, weed-control treatments and genotypes rights reserved. Keywords: Polyethylene mulch; Woody crops; Weed control Forest Ecology and Management

Green, Scott

418

Effects of storage temperature and duration on release of antimony and bisphenol A from polyethylene terephthalate drinking water  

E-Print Network (OSTI)

polyethylene terephthalate drinking water bottles of China Ying-Ying Fan a , Jian-Lun Zheng a , Jing-Hua Ren Accepted 9 May 2014 Available online xxx Keywords: Polyethylene terephthalate Antimony Bisphenol A Release of antimony (Sb) and bisphenol A (BPA) from 16 brands of polyethylene terephthalate (PET) drinking water

Ma, Lena

419

In situ kinetics study of the accelerated ageing of poly(ethylene oxide) by photoDSC  

E-Print Network (OSTI)

1 In situ kinetics study of the accelerated ageing of poly(ethylene oxide) by photoDSC F. Fraisse1 photo and thermo degradation. This paper presents a kinetic study of thermo and photoageing of poly(ethylene such as PEO. Experimental Several samples of poly(ethylene oxide) were used. The samples with a molecular

Paris-Sud XI, Université de

420

Evaluation of the efficiency of polysulfone ultrafiltration membrane-based water purifiers for microbiological decontamination  

Science Journals Connector (OSTI)

Indigenously developed polysulfone Ultrafiltration (UF) membrane-based domestic and industrial water purification units were evaluated for their ability to filter bacteria and viruses from water. Escherichia coli (105 cfu/ml) and P1 phage (106 pfu/ml) were filtered through a Domestic Water Purifier (DWP) (dead-end UF unit) and a large-scale spiral water purifier (cross-flow UF unit) and the filtrates were analysed for bacterial and phage counts. Both units were found to be efficient in the complete removal of E. coli and a 99.99% removal of the P1 phage was observed. Both the domestic and industrial water purifiers are highly efficient in the removal of bacteria and viruses. UF membranes were also characterised for Molecular Weight Cut-Off (MWCO) by the polyethylene glycol and polyethylene oxide methods, which showed that MWCO was 60–65 kDa. These MWCO results were further validated using the Bovine Serum Albumin (BSA) rejection behaviour of these membranes, which showed about 90% rejection. The technique involving the estimation of MWCO, coupled with the rejection characteristics of E. coli and P1 phage, provides an excellent tool to evaluate the efficiency of water purifiers based on UF membrane technology.

V. Nagar; R. Shashidhar; A.K. Sharma; J.R. Bandekar; R.C. Bindal; S. Prabhakar; P.K. Tewari

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Reactive Membrane Barriers for Containment of Subsurface Contamination  

SciTech Connect

The overall goal of this project was to develop reactive membrane barriers--a new and flexible technique to contain and stabilize subsurface contaminants. Polymer membranes will leak once a contaminant is able to diffuse through the membrane. By incorporating a reactive material in the polymer, however, the contaminant is degraded or immobilized within the membrane. These processes increase the time for contaminants to breakthrough the barrier (i.e. the lag time) and can dramatically extend barrier lifetimes. In this work, reactive barrier membranes containing zero-valent iron (Fe{sup 0}) or crystalline silicotitanate (CST) were developed to prevent the migration of chlorinated solvents and cesium-137, respectively. These studies were complemented by the development of models quantifying the leakage/kill time of reactive membranes and describing the behavior of products produced via the reactions within the membranes. First, poly(vinyl alcohol) (PVA) membranes containing Fe{sup 0} and CST were prepared and tested. Although PVA is not useful in practical applications, it allows experiments to be performed rapidly and the results to be compared to theory. For copper ions (Cu{sup 2+}) and carbon tetrachloride, the barrier was effective, increasing the time to breakthrough over 300 times. Even better performance was expected, and the percentage of the iron used in the reaction with the contaminants was determined. For cesium, the CST laden membranes increased lag times more than 30 times, and performed better than theoretical predictions. A modified theory was developed for ion exchangers in reactive membranes to explain this result. With the PVA membranes, the effect of a groundwater matrix on barrier performance was tested. Using Hanford groundwater, the performance of Fe{sup 0} barriers decreased compared to solutions containing a pH buffer and high levels of chloride (both of which promote iron reactivity). For the CST bearing membrane, performance improved by a factor of three when groundwater was used in place of deionized water. The performance of high density polyethylene (HDPE) membranes containing Fe{sup 0} was then evaluating using carbon tetrachloride as the target contaminant. Only with a hydrophilic additive (glycerol), was the iron able to extend lag times. Lag times were increased by a factor of 15, but only 2-3% of the iron was used, likely due to formation of oxide precipitates on the iron surface, which slowed the reaction. With thicker membranes and lower carbon tetrachloride concentrations, it is expected that performance will improve. Previous models for reactive membranes were also extended. The lag time is a measurement of when the barrier is breached, but contaminants do slowly leak through prior to the lag time. Thus, two parameters, the leakage and the kill time, were developed to determine when a certain amount of pollutant has escaped (the kill time) or when a given exposure (concentration x time) occurs (the leakage). Finally, a model was developed to explain the behavior of mobile reaction products in reactive barrier membranes. Although the goal of the technology is to avoid such products, it is important to be able to predict how these products will behave. Interestingly, calculations show that for any mobile reaction products, one half of the mass will diffuse into the containment area and one half will escape, assuming that the volumes of the containment area and the surrounding environment are much larger than the barrier membrane. These parameters/models will aid in the effective design of barrier membranes.

William A. Arnold; Edward L. Cussler

2007-02-26T23:59:59.000Z

422

Membrane module assembly  

DOE Patents (OSTI)

A membrane module assembly is described which is adapted to provide a flow path for the incoming feed stream that forces it into prolonged heat-exchanging contact with a heating or cooling mechanism. Membrane separation processes employing the module assembly are also disclosed. The assembly is particularly useful for gas separation or pervaporation. 2 figures.

Kaschemekat, J.

1994-03-15T23:59:59.000Z

423

Expert Meeting Report: Cladding Attachment Over Exterior Insulation |  

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

Cladding Attachment Over Exterior Insulation Cladding Attachment Over Exterior Insulation Expert Meeting Report: Cladding Attachment Over Exterior Insulation The addition of insulation to the exterior of buildings is an effective means of increasing the thermal resistance of both wood framed walls as well as mass masonry wall assemblies. The location of the insulation to the exterior of the structure has many direct benefits including better effective R-value from reduced thermal bridging, better condensation resistance, reduced thermal stress on the structure, as well as other commonly associated improvements such as increased air tightness and improved water management (Hutcheon 1964, Lstiburek 2007). The intent of the meeting was to review the current state of industry knowledge regarding cladding attachment over exterior insulation with a specific focus on: 1.

424

Super Building Insulation by CO2 Foaming Process Research Project |  

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

Emerging Technologies » Super Building Insulation by CO2 Foaming Emerging Technologies » Super Building Insulation by CO2 Foaming Process Research Project Super Building Insulation by CO2 Foaming Process Research Project The Department of Energy is currently researching the development of building superinsulation through a carbon dioxide (CO2) foaming process. Project Description This project seeks to develop building super insulation through a carbon dioxide foaming process that does not use hydrofluorocarbons (HFCs), and which produces insulation with a high R-value. Project Partners Research is being undertaken between the Department of Energy and The Industrial Science & Technology Network. Project Goals The goal of this project is to develop advanced insulation without HFC, and to achieve a competitive processing cost for CO2 foaming technology.

425

Observation of a Macroscopically Quantum-Entangled Insulator  

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

Observation of a Macroscopically Observation of a Macroscopically Quantum-Entangled Insulator Observation of a Macroscopically Quantum-Entangled Insulator Print Wednesday, 27 May 2009 00:00 It has recently been proposed that insulators with large band gaps and strong spin-orbit coupling can host a new phase of quantum matter called a topological insulator that is characterized by entangled wavefunctions. The proposal has now been realized by an international collaboration led by researchers from Princeton University who studied the electronic structure of insulating alloys of bismuth and antimony by means of angle-resolved photoemission spectroscopy (ARPES) and spin-resolved ARPES. Their results constitute the first direct experimental evidence of a topological insulator in nature that is fully quantum entangled. In the future, a detailed study of topological order and quantum entanglement using their method can potentially pave the way for fault-tolerant (topological) quantum computing.

426

Observation of a Macroscopically Quantum-Entangled Insulator  

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

Observation of a Macroscopically Quantum-Entangled Insulator Print Observation of a Macroscopically Quantum-Entangled Insulator Print It has recently been proposed that insulators with large band gaps and strong spin-orbit coupling can host a new phase of quantum matter called a topological insulator that is characterized by entangled wavefunctions. The proposal has now been realized by an international collaboration led by researchers from Princeton University who studied the electronic structure of insulating alloys of bismuth and antimony by means of angle-resolved photoemission spectroscopy (ARPES) and spin-resolved ARPES. Their results constitute the first direct experimental evidence of a topological insulator in nature that is fully quantum entangled. In the future, a detailed study of topological order and quantum entanglement using their method can potentially pave the way for fault-tolerant (topological) quantum computing.

427

Observation of a Macroscopically Quantum-Entangled Insulator  

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

Observation of a Macroscopically Quantum-Entangled Insulator Print Observation of a Macroscopically Quantum-Entangled Insulator Print It has recently been proposed that insulators with large band gaps and strong spin-orbit coupling can host a new phase of quantum matter called a topological insulator that is characterized by entangled wavefunctions. The proposal has now been realized by an international collaboration led by researchers from Princeton University who studied the electronic structure of insulating alloys of bismuth and antimony by means of angle-resolved photoemission spectroscopy (ARPES) and spin-resolved ARPES. Their results constitute the first direct experimental evidence of a topological insulator in nature that is fully quantum entangled. In the future, a detailed study of topological order and quantum entanglement using their method can potentially pave the way for fault-tolerant (topological) quantum computing.

428

Tunable Geometric Fano Resonances in a Metal/Insulator Stack  

E-Print Network (OSTI)

A metal-insulator-metal-insulator stack is shown to have a Fano resonance in the angular domain. The metal/insulator stack consists of two interacting subsystems, a metallic waveguide mode and a surface plasmon mode, coupled by a finite layer metal film. The two modes in close spatial proximity interfere destructively resulting in level repulsion of two metal/insulator stack modes. By adding a coupling prism to momentum match the input EM field, the reflected field exhibits a geometric Fano resonance. Changes to the waveguide insulator permittivity and thickness are shown to tune the geometric Fano resonance. The geometric Fano resonance is also tuned by variations of the exterior insulator permittivity. At a given frequency, the geometric Fano resonance can be tuned to desired lineshape. In addition, this tunability allows for a geometric Fano resonance for any frequency in the visible range.

Grotewohl, Herbert

2014-01-01T23:59:59.000Z

429

Polymer crystal-melt interfaces and nucleation in polyethylene  

E-Print Network (OSTI)

Kinetic barriers cause polymers to crystallize incompletely, into nanoscale lamellae interleaved with amorphous regions. As a result, crystalline polymers are full of crystal-melt interfaces, which dominate their physical properties. The longstanding theoretical challenge to understand these interfaces has new relevance, because of accumulating evidence that polymer crystals often nucleate via a metastable, partially ordered "rotator" phase. To test this idea requires a theory of the bulk and interfacial free energies of the critical nucleus. We present a new approach to the crystal-melt interface, which represents the amorphous region as a grafted brush of loops in a self-consistent pressure field. We combine this theory with estimates of bulk free energy differences, to calculate nucleation barriers and rates via rotator versus crystal nuclei for polyethylene. We find rotator-phase nucleation is indeed favored throughout the temperature range where nucleation is observed. Our methods can be extended to other polymers.

Scott T. Milner

2010-09-22T23:59:59.000Z

430

OXYGEN TRANSPORT CERAMIC MEMBRANES  

SciTech Connect

This report covers the following tasks: Task 1--Design, fabricate and evaluate ceramic to metal seals based on graded ceramic powder/metal braze joints; Task 2--Evaluate the effect of defect configuration on ceramic membrane conductivity and long term chemical and structural stability; Task 3--Determine materials mechanical properties under conditions of high temperatures and reactive atmospheres; Task 4--Evaluate phase stability and thermal expansion of candidate perovskite membranes and develop techniques to support these materials on porous metal structures; Task 5--Assess the microstructure of membrane materials to evaluate the effects of vacancy-impurity association, defect clusters, and vacancy-dopant association on the membrane performance and stability; and Task 6--Measure kinetics of oxygen uptake and transport in ceramic membrane materials under commercially relevant conditions using isotope labeling techniques.

Dr. Sukumar Bandopadhyay; Dr. Nagendra Nagabhushana

2002-04-01T23:59:59.000Z

431

Operating temperatures of recessed fluorescent fixtures with thermal insulation  

SciTech Connect

Tests were performed to determine steady state surface temperatures for recessed fluorescent fixtures operated with and without thermal insulation on the top side of the fixture and to identify potential problems associated with the installation of thermal insulation. In addition to measuring temperatures, means were sought by which the fixtures can be thermally insulated and operated without fire hazards or damage to the fixture. (MCW)

Yarbrough, D.W.; Toor, I.A.

1981-05-01T23:59:59.000Z

432

Influence Of Three Dynamic Predictive Clothing Insulation Models On Building Energy Use, HVAC Sizing And Thermal Comfort  

E-Print Network (OSTI)

Predictive Clothing Insulation Models based on Outdoor AirPREDICTIVE CLOTHING INSULATION MODELS ON BUILDING ENERGYthat the clothing insulation is equal to a constant value of

Schiavon, Stefano; Lee, Kwang Ho

2013-01-01T23:59:59.000Z

433

List of Building Insulation Incentives | Open Energy Information  

Open Energy Info (EERE)

Air conditioners Building Insulation Windows Doors Ground Source Heat Pumps No Alabama Power - Residential Heat Pump and Weatherization Loan Programs (Alabama) Utility Loan...

434

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

435

Highly Insulating Windows Volume Purchase Program Final Report  

SciTech Connect

This report summarizes the Highly Insulating Windows Volume Purchase Program, conduced by PNNL for DOE-BTP, including a summary of outcomes and lessons learned.

Parker, Graham B.; Mapes, Terry S.; Zalis, WJ

2013-02-01T23:59:59.000Z

436

Building America Expert Meeting: Cladding Attachment Over Exterior Insulation  

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

This expert meeting was conducted by Building Science Corporation on July 28, 2012 and focused on issues surrounding cladding attachment and performance of walls with exterior insulating sheathing.

437

Material Characterization Of Rigid Foam Insulation For Aerospace Vehicles.  

E-Print Network (OSTI)

?? There is a continuing need for improved rigid foam insulation, particularly for cryogenic storage aboard aerospace vehicles. The present work is a material characterization… (more)

Barrios, Matt

2011-01-01T23:59:59.000Z

438

Shaking the bonds: Atomic vibrations drive insulator to metal...  

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

phase stability for more than 50 years. When heated to just above room temperature, the material undergoes an abrupt transformation from an electrical insulator to a conducting...

439

Original article Flat ceramic membranes  

E-Print Network (OSTI)

membranes. The orig- inal intellectual concept is protected by two international patents. Strategically of investment and functioning costs while keeping the interest of ceramics. ceramic membrane / plate / tubular

Paris-Sud XI, Université de

440

High Temperature Membrane Working Group  

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

The High Temperature Membrane Working Group consists of government, industry, and university researchers interested in developing high temperature membranes for fuel cells.

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Möbius Graphene Strip as Topological Insulator  

E-Print Network (OSTI)

We study the electronic properties of M\\"{o}bius graphene strip with a zigzag edge. We show that such graphene strip behaves as a topological insulator with a gapped bulk and a robust metallic surface, which enjoys some features due to its nontrivial topology of the spatial configuration, such as the existence of edge states and the non-Abelian induced gauge field. We predict that the topological properties of the M\\"{o}bius graphene strip can be experimentally displayed by the destructive interference in the transmission spectrum, and the robustness of edge states under certain perturbations.

Z. L. Guo; Z. R. Gong; H. Dong; C. P. Sun

2009-06-09T23:59:59.000Z

442

Holographic Metals and Insulators with Helical Symmetry  

E-Print Network (OSTI)

Homogeneous, zero temperature scaling solutions with Bianchi VII spatial geometry are constructed in Einstein-Maxwell-Dilaton theory. They correspond to quantum critical saddle points with helical symmetry at finite density. Assuming $AdS_{5}$ UV asymptotics, the small frequency/(temperature) dependence of the AC/(DC) electric conductivity along the director of the helix are computed. A large class of insulating and conducting anisotropic phases is found, as well as isotropic, metallic phases. Conduction can be dominated by dissipation due to weak breaking of translation symmetry or by a quantum critical current.

Aristomenis Donos; Blaise Goutéraux; Elias Kiritsis

2014-06-24T23:59:59.000Z

443

Holographic Metals and Insulators with Helical Symmetry  

E-Print Network (OSTI)

Homogeneous, zero temperature scaling solutions with Bianchi VII spatial geometry are constructed in Einstein-Maxwell-Dilaton theory. They correspond to quantum critical saddle points with helical symmetry at finite density. Assuming $AdS_{5}$ UV asymptotics, the small frequency/(temperature) dependence of the AC/(DC) electric conductivity along the director of the helix are computed. A large class of insulating and conducting anisotropic phases is found, as well as isotropic, metallic phases. Conduction can be dominated by dissipation due to weak breaking of translation symmetry or by a quantum critical current.

Donos, Aristomenis

2014-01-01T23:59:59.000Z

444

Novel metals and insulators from holography  

E-Print Network (OSTI)

Using simple holographic models in $D=4$ spacetime dimensions we construct black hole solutions dual to $d=3$ CFTs at finite charge density with a Q-lattice deformation. At zero temperature we find new ground state solutions with broken translation invariance, either in one or both spatial directions, which exhibit insulating or metallic behaviour depending on the parameters of the holographic theory. For low temperatures and small frequencies, the real part of the optical conductivity has a power-law behaviour, with the exponent determined by the ground state. We also obtain an expression for the the DC conductivity at finite temperature in terms of horizon data of the black hole solutions.

Aristomenis Donos; Jerome P. Gauntlett

2014-01-20T23:59:59.000Z

445

Topological insulators with SU(2) Landau levels  

E-Print Network (OSTI)

We construct continuum models of 3D and 4D topological insulators by coupling spin-1/2 fermions to an SU(2) background gauge field, which is equivalent to a spatially dependent spin-orbit coupling. Higher dimensional generalizations of flat Landau levels are obtained in the Landau-like gauge. The 2D helical Dirac modes with opposite helicities and 3D Weyl modes with opposite chiralities are spatially separated along the third and fourth dimensions, respectively. Stable 2D helical Fermi surfaces and 3D chiral Fermi surfaces appear on open boundaries, respectively. The charge pumping in 4D Landau level systems shows quantized 4D quantum Hall effect.

Yi Li; Shou-Cheng Zhang; Congjun Wu

2012-08-08T23:59:59.000Z

446

Ordered ceramic membranes  

SciTech Connect

Ceramic membranes have been formed from colloidal sols coated on porous clay supports. These supported membranes have been characterized in terms of their permeabilities and permselectivities to various aqueous test solutions. The thermal stabilities and pore structures of these membranes have been characterized by preparing unsupported membranes of the correpsonding material and performing N{sub 2} adsorption-desorption and X-ray diffraction studies on these membranes. To date, membranes have been prepared from a variety of oxides, including TiO{sub 2}, SiO{sub 2}, ZrO{sub 2}, and Al{sub 2}O{sub 3}, as well as Zr-, Fe-, and Nb-doped TiO{sub 2}. In many of these membranes pore diameters are less than 2 nm, while in others the pore diameters are between 3 and 5 nm. Procedures for fabricating porous clay supports with reproducible permeabilities for pure water are also discussed. 30 refs., 59 figs., 22 tabs.

Anderson, M.A.; Hill, C.G. Jr.; Zeltner, W.A.

1991-10-01T23:59:59.000Z

447

Catalytic nanoporous membranes  

DOE Patents (OSTI)

A nanoporous catalytic membrane which displays several unique features Including pores which can go through the entire thickness of the membrane. The membrane has a higher catalytic and product selectivity than conventional catalysts. Anodic aluminum oxide (AAO) membranes serve as the catalyst substrate. This substrate is then subjected to Atomic Layer Deposition (ALD), which allows the controlled narrowing of the pores from 40 nm to 10 nm in the substrate by deposition of a preparatory material. Subsequent deposition of a catalytic layer on the inner surfaces of the pores reduces pore sizes to less than 10 nm and allows for a higher degree of reaction selectivity. The small pore sizes allow control over which molecules enter the pores, and the flow-through feature can allow for partial oxidation of reactant species as opposed to complete oxidation. A nanoporous separation membrane, produced by ALD is also provided for use in gaseous and liquid separations. The membrane has a high flow rate of material with 100% selectivity. Also provided is a method for producing a catalytic membrane having flow-through pores and discreet catalytic clusters adhering to the inside surfaces of the pores.

Pellin, Michael J; Hryn, John N; Elam, Jeffrey W

2013-08-27T23:59:59.000Z

448

Investigation into CF3I-CO2 gas mixtures for insulation of gas-insulated distribution equipment .  

E-Print Network (OSTI)

??This thesis reviews the use of sulphur hexafluoride (SF6) as an insulating medium in the electrical power industry and quantifies the potential global warming effects… (more)

Widger, Phillip

2014-01-01T23:59:59.000Z

449

CENTRIFUGAL MEMBRANE FILTRATION  

SciTech Connect

The overall project consists of several integrated research phases related to the applicability, continued development, demonstration, and commercialization of the SpinTek centrifugal membrane filtration process. Work performed during this reporting period consisted of Phase 2 evaluation of the SpinTek centrifugal membrane filtration technology and Phase 3, Technology Partnering. During Phase 1 testing conducted at the EERC using the SpinTek ST-IIL unit operating on a surrogate tank waste, a solids cake developed on the membrane surface. The solids cake was observed where linear membrane velocities were less than 17.5 ft/s and reduced the unobstructed membrane surface area up to 25%, reducing overall filtration performance. The primary goal of the Phase 2 research effort was to enhance filtration performance through the development and testing of alternative turbulence promoter designs. The turbulence promoters were designed to generate a shear force across the entire membrane surface sufficient to maintain a self-cleaning membrane capability and improve filtration efficiency and long-term performance. Specific Phase 2 research activities included the following: System modifications to accommodate an 11-in.-diameter, two-disk rotating membrane assembly; Development and fabrication of alternative turbulence promoter designs; Testing and evaluation of the existing and alternative turbulence promoters under selected operating conditions using a statistically designed test matrix; and Data reduction and analysis; The objective of Phase 3 research was to demonstrate the effectiveness of SpinTek's centrifugal membrane filtration as a pretreatment to remove suspended solids from a liquid waste upstream of 3M's WWL cartridge technology for the selective removal of technetium (Tc).

Daniel J. Stepan; Bradley G. Stevens; Melanie D. Hetland

1999-10-01T23:59:59.000Z

450

Accepted for Publication in J. Rheology (May/June 2005 Issue) March 1, 2005 Measuring the Transient Extensional Rheology of Polyethylene Melts  

E-Print Network (OSTI)

Extensional Rheology of Polyethylene Melts Using the SER Universal Testing Platform Martin Sentmanat Senkhar stress growth in a number of different molten polyethylene samples including a linear low density polyethylene (Dow Affinity PL 1880), a low density polyethylene (Lupolen 1840H) and an ultrahigh molecular

451

Influence of Ionic Surfactants on the Aggregation of Poly(Ethylene Oxide)-Poly(Propylene Oxide)-Poly(Ethylene Oxide) Block Copolymers Studied by Differential Scanning and  

E-Print Network (OSTI)

Influence of Ionic Surfactants on the Aggregation of Poly(Ethylene Oxide)-Poly(Propylene Oxide)-Poly(Ethylene copolymers of poly(ethylene oxide) and poly(propylene oxide), EOnPOmEOn, and the ionic surfactants sodium the aggregates of all three polymers. Introduction Water-soluble poly(ethylene oxide)-poly(propylene oxide)- poly(ethylene

Loh, Watson

452

Composite metal membrane  

DOE Patents (OSTI)

A composite metal membrane including a first metal layer of Group IVB met or Group VB metals, the first metal layer sandwiched between two layers of an oriented metal of palladium, platinum or alloys thereof is provided together with a process for the recovery of hydrogen from a gaseous mixture including contacting a hydrogen-containing gaseous mixture with a first side of a nonporous composite metal membrane including a first metal of Group IVB metals or Group VB metals, the first metal layer sandwiched between two layers of an oriented metal of palladium, platinum or alloys thereof, and, separating hydrogen from a second side of the nonporous composite metal membrane.

Peachey, Nathaniel M. (Espanola, NM); Dye, Robert C. (Los Alamos, NM); Snow, Ronny C. (Los Alamos, NM); Birdsell, Stephan A. (Los Alamos, NM)

1998-01-01T23:59:59.000Z

453

Composite metal membrane  

DOE Patents (OSTI)

A composite metal membrane including a first metal layer of Group IVB met or Group VB metals, the first metal layer sandwiched between two layers of an oriented metal of palladium, platinum or alloys thereof is provided together with a process for the recovery of hydrogen from a gaseous mixture including contacting a hydrogen-containing gaseous mixture with a first side of a nonporous composite metal membrane including a first metal of Group IVB metals or Group VB metals, the first metal layer sandwiched between two layers of an oriented metal of palladium, platinum or alloys thereof, and, separating hydrogen from a second side of the nonporous composite metal membrane.

Peachey, N.M.; Dye, R.C.; Snow, R.C.; Birdsell, S.A.

1998-04-14T23:59:59.000Z

454

Insulating conduction in Sn/Si(111): Possibility of a Mott insulating ground state and metallization/localization induced by carrier doping  

E-Print Network (OSTI)

Insulating conduction in Sn/Si(111): Possibility of a Mott insulating ground state measurements. The temperature dependence of the surface-state conductivity showed an insulating behavior from is insulating with a very small energy gap, which is consistent with a recent theoretical study G. Profeta and E

Hasegawa, Shuji

455

Operation of Line Transformers Upon Attainment of Maximum Permissible Parameters of Wear of Winding Insulation  

Science Journals Connector (OSTI)

Possible mechanisms of failure of insulation of windings of line transformers after exhaustion ... are considered. Conditions of strength of paper insulation and conditions of operation of screw-type insulation u...

B. V. Vanin; Yu. N. L'vov; M. Yu. L'vov; L. N. Shifrin

2004-01-01T23:59:59.000Z

456

Insulation of the Chicken ?-Globin Chromosomal Domain from a Chromatin-Condensing Protein, MENT  

Science Journals Connector (OSTI)

...Microbiology ARTICLE TRANSCRIPTIONAL REGULATION Insulation of the Chicken b-Globin Chromosomal...regulatory elements (61), and structural insulation of active chromatin from silencing...West, and G. Felsenfeld. 2002. The insulation of genes from external enhancers and...

Natalia E. Istomina; Sain S. Shushanov; Evelyn M. Springhetti; Vadim L. Karpov; Igor A. Krasheninnikov; Kimberly Stevens; Kenneth S. Zaret; Prim B. Singh; Sergei A. Grigoryev

2003-09-01T23:59:59.000Z

457

Transcriptional insulation of the human keratin 18 gene in transgenic mice.  

Science Journals Connector (OSTI)

...research-article Research Article Transcriptional insulation of the human keratin 18 gene in transgenic...for this property of transcriptional insulation, additional transgenic mouse lines...sequence requirements for transcriptional insulation in adult liver and intestine are different...

N Neznanov; I S Thorey; G Ceceña; R G Oshima

1993-04-01T23:59:59.000Z

458

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

459

Optimization of functionally graded metallic foam insulation under transient heat transfer conditions  

Science Journals Connector (OSTI)

The problem of minimizing the maximum temperature of a structure insulated by a functionally graded metal foam insulation under transient heat conduction is studied. First, the performance of insulation designed ...

H. Zhu; B.V. Sankar; R.T. Haftka…

2004-11-01T23:59:59.000Z

460

Sound insulation ratings—the STC revisited  

Science Journals Connector (OSTI)

About twenty years ago building authorities and their acoustical experts were faced with a confusing variety of schemes for rating the sound insulation of walls and floors. There was need for a definitive rating system that would digest the 16 transmission loss values that characterize a partition and produce a single number that would describe its sound insulation performance especially in respect to multi?family dwellings. Two standards committees ISO/TC 43 and ASTM E6 (now E33) began more or less together to develop a new improved rating system to fill this need. The product of these labors was what is known in North America as the ASTM sound transmission class (STC). This rating system was so successful that it was almost universally adopted—even in applications for which it was not intended. Despite the apparent success there is now increasing awareness of imperfections in the system. These are examined in light of accumulated data and experience to see whether the system could or should be improved by certain minor changes.

T. D. Northwood

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

Variably insulating portable heater/cooler  

DOE Patents (OSTI)

A compact vacuum insulation panel comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber includes apparatus and methods for enabling and disabling, or turning "on" and "off" the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls.

Potter, Thomas F. (Denver, CO)

1998-01-01T23:59:59.000Z

462

Variably insulating portable heater/cooler  

DOE Patents (OSTI)

A compact vacuum insulation panel is described comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber includes apparatus and methods for enabling and disabling, or turning ``on`` and ``off`` the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls. 25 figs.

Potter, T.F.

1998-09-29T23:59:59.000Z

463

Material-controlled dynamic vacuum insulation  

DOE Patents (OSTI)

A compact vacuum insulation panel is described comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber includes apparatus and methods for enabling and disabling, or turning ``on`` and ``off`` the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls. 25 figs.

Benson, D.K.; Potter, T.F.

1996-10-08T23:59:59.000Z

464

Material-controlled dynamic vacuum insulation  

DOE Patents (OSTI)

A compact vacuum insulation panel comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber includes apparatus and methods for enabling and disabling, or turning "on" and "off" the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls.

Benson, David K. (14154 W. First Dr., Golden, CO 80401); Potter, Thomas F. (515 S. Magnolia La., Denver, CO 80224)

1996-10-08T23:59:59.000Z

465

Radiation-controlled dynamic vacuum insulation  

DOE Patents (OSTI)

A compact vacuum insulation panel is described comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber that includes apparatus and methods for enabling and disabling, or turning ``on`` and ``off`` the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls. 25 figs.

Benson, D.K.; Potter, T.F.

1995-07-18T23:59:59.000Z

466

Radiation-controlled dynamic vacuum insulation  

DOE Patents (OSTI)

A compact vacuum insulation panel comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber that includes apparatus and methods for enabling and disabling, or turning "on" and "off" the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls.

Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

1995-01-01T23:59:59.000Z

467

A membrane interferometer  

Science Journals Connector (OSTI)

...bilayer membranes from lipid monolayers. A critique . Biophys J 16 : 481 – 489 . Acknowledgments We thank Profs. Nick Melosh, Merritt Maduke, and Stephen White for useful insights and suggestions. The Cy5-DNA-lipid conjugate was synthesized...

Prasad V. Ganesan; Steven G. Boxer

2009-01-01T23:59:59.000Z

468

Wrinkling in polygonal membranes  

E-Print Network (OSTI)

boundary conditions of the polygons. When pressurised, the polygonal membranes naturally reach a parabolic shape towards their centre, the extent of which varies greatly depending on a large number of parameters, including most particularly pre...

Bonin, Arnaud Stephane

2012-02-07T23:59:59.000Z

469

Reverse Osmosis Membranes  

Science Journals Connector (OSTI)

A bibliography of citations from the U.S. National Technical Information Service data base with 183 abstracts on membranes for reverse osmosis desalination, electro-dialysis desalination and other osmotic desa...

Prof. Dr. Anthony Delyannis; Dr. Euridike-Emmy Delyannis

1980-01-01T23:59:59.000Z

470

Development of a Cell Patterning Technique Using Poly(Ethylene Glycol) Disilane  

Science Journals Connector (OSTI)

A simple technique for controlling cell adhesion on glass substrates by surface modification using a commercially available poly(ethylene glycol) (PEG) disilane, which can bind directly to glass in ... 3T3 fibrob...

Daniel Irimia; Jens O.M. Karlsson

2003-09-01T23:59:59.000Z

471

Alpha-amylase assay with dyed-starch in polyethylene glycol and dextran solutions  

Science Journals Connector (OSTI)

The ?-amylase assay method with RBB-starch was shown to work well in the presence of polyethylene glycol and dextran, polymers commonly used in aqueous two-phase systems. Neither the polymer type, polymer conc...

Kyung Moon Park; Nam Sun Wang

472

Effect of micro-patterning on bacterial adhesion on PET (polyethylene terephthalate) surface  

E-Print Network (OSTI)

release cytotoxin and promote antibiotic resistance. In this study we fabricated micro-patterned polyethylene terephthalate surfaces, and quantitatively explored the amount and localization of Escherichia coli MG1655 cells attached on a series of defined...

Wang, Liyun; Chen, Wei; Terentjev, Eugene

2014-12-16T23:59:59.000Z

473

Improved performance of ultra-high molecular weight polyethylene for orthopedic applications  

E-Print Network (OSTI)

A considerable number of total-joint replacement devices used in orthopedic medicine involve articulation between a metallic alloy and ultra-high molecular weight polyethylene (UHMWPE). Though this polymer has excellent wear resistance, the wear...

Plumlee, Kevin Grant

2009-05-15T23:59:59.000Z

474

Methods for increasing the thermal conductivity of ultra-high molecular weight polyethylene (UHMWPE)  

E-Print Network (OSTI)

A two-part study was conducted to determine methods for producing ultra-high molecular weight polyethylene with high thermal conductivity by way of polymer chain orientation. The first portion of this report surveys current ...

Miler, Josef L

2006-01-01T23:59:59.000Z

475

Micromechanical characterization of the interphase layer in semi-crystalline polyethylene  

E-Print Network (OSTI)

The interphase layer in semi-crystalline polyethylene is the least known constituent, compared to the amorphous and crystalline phases, in terms of mechanical properties. In this study, the Monte Carlo molecular simulation ...

Ghazavizadeh, Akbar

476

A method for using polyethylene passive samplers to measure polycyclic aromatic hydrocarbon chemical activity in sediments  

E-Print Network (OSTI)

In order to aid in the determination of the hazards posed by hydrophobic organic compounds (HOCs) in sediment beds, a method for the use of polyethylene (PE) sheets as passive sampling devices for measuring chemical ...

Fernandez, Loretta A. (Loretta Ana)

2005-01-01T23:59:59.000Z

477

Composite Polymer Electrolytes Based on Poly(ethylene glycol) and Hydrophobic Fumed Silica: Dynamic  

E-Print Network (OSTI)

utilized in electrolyte processing. Introduction Rechargeable lithium batteries employing solid elec electrolytes based on poly(ethylene oxide) (PEO).1 Solid polymer electrolytes can potentially eliminate battery* Department of Chemical Engineering, North Carolina State University, Raleigh, North Carolina 27695

Raghavan, Srinivasa

478

Apparent Neutron Emissions from Polyethylene Capsules during Neutron Activation and Delayed Neutron Counting  

Science Journals Connector (OSTI)

At Imperial College uranium is determined at very low levels in environmental samples by delayed neutron counting. High density polyethylene capsules are used ... transfer system, from the reactor, to the neutron

R. Benzing; N. M. Baghini; B. A. Bennett…

2000-05-01T23:59:59.000Z

479

Montana Slab Edge Insulation Analysis for IECC 2006 Adoption  

SciTech Connect

This is a letter report summarizing the energy analysis of slab insulation requirements which are no longer in IECC 2006 for Montana climate zone. Based on energy analysis using Equest, we calculated energy consumption and annual energy cost for various insulation configurations. This information will be used by the Montana Energy office during the upcoming code hearings.

Gowri, Krishnan

2007-05-01T23:59:59.000Z

480

Development of Pre?Preg Ceramic Insulation for Superconducting Magnets  

Science Journals Connector (OSTI)

A new pre?impregnated (pre?preg) ceramic?based electrical insulation system capable of surviving high superconductor reaction temperatures has been developed for use in superconducting magnets. The use of Nb 3Sn superconductors holds great promise for increased magnet performance for high energy physics fusion and other applications. A robust cost?effective manufacturing process is critical to the successful implementation of these coils. Due to its embrittlement after the high temperature reaction cycle Nb 3Sn cable is usually insulated and wound into the coil prior to heat treatment. An earlier ceramic?based insulation system applied using wet?winding or vacuum impregnation has been successfully used in the “wind and react” fabrication process. Use of the new pre?preg system will further simplify the manufacturing process while improving control over the insulation properties. Pre?preg insulation offers several advantages including improved dimensional control of the insulation controllable and uniform fiber to matrix ratio and certainty that the insulation does not infiltrate the superconductor. This paper describes the pre?preg development process processing properties as well as insulation performance data at cryogenic temperatures.

D. E. Codell; P. E. Fabian

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insulation polyethylene membrane" 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

High voltage gas insulated transmission line with continuous particle trapping  

DOE Patents (OSTI)

This invention provides a novel high voltage gas insulated transmission line utilizing insulating supports spaced at intervals with snap-in means for supporting a continuous trapping apparatus and said trapping apparatus having perforations and cutouts to facilitate trapping of contaminating particles and system flexibility.

Cookson, Alan H. (Pittsburgh, PA); Dale, Steinar J. (Monroeville, PA)

1983-01-01T23:59:59.000Z

482

OXYGEN TRANSPORT CERAMIC MEMBRANES  

SciTech Connect

This is the third quarterly report on oxygen Transport Ceramic Membranes. In the following, the report describes the progress made by our university partners in Tasks 1 through 6, experimental apparatus that was designed and built for various tasks of this project, thermodynamic calculations, where applicable and work planned for the future. (Task 1) Design, fabricate and evaluate ceramic to metal seals based on graded ceramic powder/metal braze joints. (Task 2) Evaluate the effect of defect configuration on ceramic membrane conductivity and long term chemical and structural stability. (Task 3) Determine materials mechanical properties under conditions of high temperatures and reactive atmospheres. (Task 4) Evaluate phase stability and thermal expansion of candidate perovskite membranes and develop techniques to support these materials on porous metal structures. (Task 5) Assess the microstructure of membrane materials to evaluate the effects of vacancy-impurity association, defect clusters, and vacancy-dopant association on the membrane performance and stability. (Task 6) Measure kinetics of oxygen uptake and transport in ceramic membrane materials under commercially relevant conditions using isotope labeling techniques.

Dr. Sukumar Bandopadhyay; Dr. Nagendra Nagabhushana

2000-10-01T23:59:59.000Z

483

High Temperature Membrane Working Group  

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

This presentation provides an overview of the High Temperature Membrane Working Group Meeting in May 2007.

484

Membrane fusion: Ready ? aim ? fire!  

Science Journals Connector (OSTI)

... All cells use a programme of membrane fusion and fission to assemble membranes, both internally and on their surface. Given that biological ... internally and on their surface. Given that biological membranes are essentially two-dimensional fluids, fusion must obey certain restrictions that prevent incompatible membranes from intermixing. Without such selective contact, ...

Randy Schekman

1998-12-10T23:59:59.000Z

485

Layer-by-layer assembly on polyethylene films via "click" chemistry  

E-Print Network (OSTI)

LAYER-BY-LAYER ASSEMBLY ON POLYETHYLENE FILMS VIA ?CLICK? CHEMISTRY A Thesis by BRANDON SCOTT CHANCE 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 May 2007 Major Subject: Chemistry LAYER-BY-LAYER ASSEMBLY ON POLYETHYLENE FILMS VIA ?CLICK? CHEMISTRY A Thesis by BRANDON SCOTT CHANCE Submitted to the Office of Graduate Studies of Texas A&M University...

Chance, Brandon Scott

2009-05-15T23:59:59.000Z

486

Comparative investigations of surface instabilities ("sharkskin") of a linear and a long-chain branched polyethylene  

E-Print Network (OSTI)

An experimental study of the physical origin and the mechanisms of the sharkskin instability is presented. Extrusion flows through a slit die are studied for two materials: a linear low density polyethylene (LLDPE) and a low density polyethylene (LDPE). By combining laser-Doppler velocimetry (LDV) with rheological measurements in both uniaxial extension and shear, the distributions of tensile and shear stresses in extrusion flows are measured for both materials.

Teodor I. Burghelea; Hans J. Griess; Helmut Muenstedt

2010-01-15T23:59:59.000Z

487

Surface induced disorder of nematic MBBA near silica with grafted poly(ethylene oxide)  

E-Print Network (OSTI)

909 Surface induced disorder of nematic MBBA near silica with grafted poly(ethylene oxide) H. Ben greffés, du polyoxyde d'ethylene 2000, a été étudié à l'aide des techniques suivantes : la résonance para with grafted polymers poly(ethylene oxide) 2000, has been investigated by the electron paramagnetic resonance

Paris-Sud XI, Université de

488

Experiments Provide First Direct Signatures of a Topological Insulator - a  

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

Experiments Provide First Direct Experiments Provide First Direct Signatures of a Topological Insulator - a New Phase of Quantum Matter It has recently been proposed that insulators with large band gap and strong spin-orbit coupling can host a new phase of quantum matter called a topological insulator [1,2]. This exotic phase of matter is a subject of intense research because it is predicted to give rise to dissipationless spin currents [3], quantum entanglements and novel macroscopic behavior that obeys axionic electrodynamics rather than Maxwell's equations [4]. Unlike ordinary quantum phases of matter such as superconductors, magnets or superfluids, topological insulators are not described by a local order parameter associated with a spontaneously broken symmetry but rather by a quantum entanglement of its wave function, dubbed topological order. In a topological insulator this quantum entanglement survives over the macroscopic dimensions of the crystal and leads to surface states that have unusual spin textures.

489

Surprising Control over Photoelectrons from a Topological Insulator  

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

Surprising Control over Surprising Control over Photoelectrons from a Topological Insulator Surprising Control over Photoelectrons from a Topological Insulator Print Tuesday, 12 March 2013 00:00 Topological insulators are insulators in the bulk but metals on the surface, and the electrons that flow swiftly across their surfaces are "spin polarized." Surface-electron spin and momentum are locked, offering new ways to control electron flow and distribution in spintronic devices. A Nature Physics paper by first author Chris Jozwiak of the Advanced Light Source and a large team led by Alessandra Lanzara and Zahid Hussain describes surprising results counter to previous assumptions: the spin polarization of photoemitted electrons from the surface of a topological insulator is wholly determined in three dimensions by the polarization of the incident light beam.

490

Tuning of the Metal-Insulator Transition via Alkali Adsorption  

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

Tuning of the Metal-Insulator Transition via Alkali Adsorption Print Tuning of the Metal-Insulator Transition via Alkali Adsorption Print Turning a material from an insulator to a metal, or vice versa, by light irradiation, exposure to electric or magnetic fields, or applying small changes in temperature, pressure, or doping-such intriguing control of a material's electronic properties is possible by exploiting strongly interacting or "correlated" electrons. Now a team of researchers from the University of Kiel in Germany and the ALS has found a novel, surprising way to continuously transform a layered metallic transition-metal compound, TaS2, into an insulator. Using angle-resolved photoemission spectroscopy (ARPES), they have demonstrated that adsorption of alkali atoms onto this material's surface gradually makes it more insulating, although in general, alkali adsorption should lead to more metallic behavior, as alkali atoms easily give away their loosely bound outermost electron.

491

Insulation Strategies to Meet Upcoming Code and Above Code Programs  

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

Insulation Strategies to Meet Insulation Strategies to Meet Upcoming Code and Above Code Programs 1 Christopher Little, BASF Corporation, Center for Building Excellence 3/2/2012 Presentation Overview Innovative insulating & wall assembly strategies  Typical assembly  New innovations  Features & benefits of each 2 3/2/2012 Typical Site Built Residential Wall Concept: Site built wood frame wall with exterior sheathing and batt insulation Components:  Exterior Finish (bulk moisture control)  Building wrap  Exterior sheathing 2x4 Studs @16" O.C.  Batt Insulation (+/- 3.7 R per inch)  Gypsum board Benefits: Relatively low cost ICF Site-built 3 3/2/2012 Typical Site Built Residential Wall Key performance deficiencies  Low effective R-value  Difficulty meeting IECC 2012 R-value

492

Surprising Control over Photoelectrons from a Topological Insulator  

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

Surprising Control over Photoelectrons Surprising Control over Photoelectrons from a Topological Insulator Surprising Control over Photoelectrons from a Topological Insulator Print Tuesday, 12 March 2013 00:00 Topological insulators are insulators in the bulk but metals on the surface, and the electrons that flow swiftly across their surfaces are "spin polarized." Surface-electron spin and momentum are locked, offering new ways to control electron flow and distribution in spintronic devices. A Nature Physics paper by first author Chris Jozwiak of the Advanced Light Source and a large team led by Alessandra Lanzara and Zahid Hussain describes surprising results counter to previous assumptions: the spin polarization of photoemitted electrons from the surface of a topological insulator is wholly determined in three dimensions by the polarization of the incident light beam.

493

Design of Experiments Results for the Feedthru Insulator  

SciTech Connect

A design of experiments (DoE) was performed at Ceramtec to improve the yield of a cermet part known as the feedthru insulator. The factors chosen to be varied in this DoE were syringe orifice size, fill condition, solvent, and surfactant. These factors were chosen because of their anticipated effect on the cermet slurry and its consequences to the feedthru insulator in succeeding fabrication operations. Response variables to the DoE were chosen to be indirect indicators of production yield for the feedthru insulator. The solvent amount used to mix the cermet slurry had the greatest overall effect on the response variables. Based upon this DoE, there is the potential to improve the yield not only for the feedthru insulator but for other cermet parts as well. This report thoroughly documents the DoE and contains additional information regarding the feedthru insulator.

BENAVIDES,GILBERT L.; VAN ORNUM,DAVID J.; BACA,MAUREEN R.; APPEL,PATRICIA E.

1999-12-01T23:59:59.000Z

494

Chapter Four - Cryogenic Insulation Systems for LNG Industries  

Science Journals Connector (OSTI)

Abstract The market for liquefied natural gas (LNG) is growing faster than any other market for energy resources. Since LNG is normally carried by ship at -163°C, the functional requirements of a ship carrying LNG include cryogenic reliability due to thermal cyclic stresses and high thermal insulation performance for safe and efficient transportation of LNG. In order to guarantee the LNG cold temperature around -160°C, high-quality insulation installation in accordance with strict specifications is essential. Cryogenic insulation restricts the inflow of atmospheric heat into the pipe or process equipment, keeping the liquid cold and allowing it to retain its form. This chapter covers fundamentals for thermal insulation for various thermal insulation materials in LNG industries.

Alireza Bahadori

2014-01-01T23:59:59.000Z

495

Development of microwave foaming method for phenolic insulation foams  

Science Journals Connector (OSTI)

Many types of foams are used for thermal insulation in building, frozen food industries and LNG containment systems. Low thermal conductivity, low density and low flammability are required for thermal insulation. Among many foams, phenolic foams are preferred for thermal insulation due to its lower flammability and lower gas generation than any other polymer insulation foams. However, it takes long time to manufacture large size phenolic foams and the environmental regulation limits the use of blowing agents. Urethane foams and polystyrene foams are widely used in spite of their high flammability and toxic gas generation because conventional phenolic foams usually have higher thermal conductivity than expected. In this work, a foaming method for the resole-type phenolic foams was developed using microwave and air instead of blowing agents, and its thermal and mechanical properties were measured. From the measured results, it was found that the phenolic foams developed had low thermal conductivity and low density suitable for insulation foams.

Bu Gi Kim; Dai Gil Lee

2008-01-01T23:59:59.000Z

496

Kingspan Insulated Panels: Proposed Penalty (2013-CE-5353) | Department of  

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

Kingspan Insulated Panels: Proposed Penalty (2013-CE-5353) Kingspan Insulated Panels: Proposed Penalty (2013-CE-5353) Kingspan Insulated Panels: Proposed Penalty (2013-CE-5353) March 26, 2013 DOE alleged in a Notice of Proposed Civil Penalty that Kingspan Insulated Panels, Inc. failed to certify a variety of walk-in cooler or freezer components as compliant with the applicable energy conservation standards. DOE regulations require a manufacturer (which includes importers) to submit reports certifying that its products have been tested and meet the applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Kingspan Insulated Panels: Proposed Penalty (2013-CE-5353) More Documents & Publications

497

NOVEL NANOCOMPOSITE MEMBRANE STRUCTURES FOR H2 SEPARATIONS  

SciTech Connect

This report explores possible methods of improving CO{sub 2} selectivity in polymer based membranes. The first method investigated using basic nanoparticles to enhance the solubility of acid gases in nanocomposite membranes, thus enhancing the overall acid gas/light gas selectivity (e.g., CO{sub 2}/H{sub 2}, CO{sub 2}/CH{sub 4}, etc.). The influence of nanoparticle surface chemistry on nanocomposite morphology and transport properties will be determined experimentally in a series of poly(1-trimethylsilyl-1-propyne). Additional factors (e.g., chemical reaction of the particles with the polymers) have been considered, as necessary, during the course of the investigation. The second method investigated using polar polymers such as crosslinked poly(ethylene oxide) and poly(ether-b-amide) to improve CO{sub 2} sorption and thereby increase CO{sub 2} permeability and CO{sub 2}/light gas selectivity. For both types of materials, CO{sub 2} and light gas permeabilities have been characterized. The overall objective was to improve the understanding of materials design strategies to improve acid gas transport properties of membranes.

Benny D. Freeman

2005-03-31T23:59:59.000Z

498

E-Print Network 3.0 - antiferromagnetic mott insulator Sample...  

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of Spin 1 bosons Mott Insulator Phase Superfluid-Mott... Insulator Phase transition (Phase Boundary) Symmetry of Superfluid Phase Spin order in n1 Mott... ...

499

The use of coated micropowders to reduce radiation heat transfer in foam insulation  

E-Print Network (OSTI)

Polyurethane foam is the most effective insulation currently available for buildings. Chlorofluorocarbon (CFC) blowing agents, which have low thermal conductivities, contribute highly to the effectiveness of this insulation. ...

Marge, Arlene Lanciani

1991-01-01T23:59:59.000Z

500

A new method of reducing contact heat transfer in vacuum-screen insulation  

Science Journals Connector (OSTI)

A heat treatment method is proposed for vacuum-screen insulation that substantially reduces the contact heat transfer ... illustrated on cryogenic pipelines with various forms of insulation.

T. A. Kurskaya; V. F. Getmanets; B. V. Grigorenko

1988-03-01T23:59:59.000Z