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Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Fabrication of hydrophobic, electrically conductive and flame-resistant carbon aerogels by pyrolysis of regenerated cellulose aerogels  

Science Journals Connector (OSTI)

Abstract In this paper, we reported miscellaneous carbon aerogels prepared by pyrolysis of regenerated cellulose aerogels that were fabricated by dissolution in a mild NaOH/PEG solution, freeze ? thaw treatment, regeneration, and freeze drying. The as-prepared carbon aerogels were subsequently characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), nitrogen adsorption measurements, X-ray diffraction (XRD), Raman spectroscopy, and water contact angle (WCA) tests. The results showed that the carbon aerogels with pore diameters of 1 ? 60 nm maintained interconnected three-dimensional (3D) network after the pyrolysis, and showed type ? IV adsorption isotherm. The pyrolysis process leaded to the decomposition of oxygen-containing functional groups, the destruction of cellulose crystalline structure, and the formation of highly disordered amorphous graphite. Moreover, the carbon aerogels also had strong hydrophobicity, electrical conductivity and flame retardance, which held great potential in the fields of waterproof, electronic devices and fireproofing.

Caichao Wan; Yun Lu; Yue Jiao; Chunde Jin; Qingfeng Sun; Jian Li

2014-01-01T23:59:59.000Z

2

X-ray Studies of Regenerated Cellulose Fibers Wet Spun from Cotton Linter Pulp in NaOH/Thiourea Aqueous Solutions  

SciTech Connect (OSTI)

Regenerated cellulose fibers were fabricated by dissolution of cotton linter pulp in NaOH (9.5 wt%) and thiourea (4.5 wt%) aqueous solution followed by wet-spinning and multi-roller drawing. The multi-roller drawing process involved three stages: coagulation (I), coagulation (II) and post-treatment (III). The crystalline structure and morphology of regenerated cellulose fiber was investigated by synchrotron wide-angle X-ray diffraction (WAXD) and small-angle X-ray scattering (SAXS) techniques. Results indicated that only the cellulose II crystal structure was found in regenerated cellulose fibers, proving that the cellulose crystals were completely transformed from cellulose I to II structure during spinning from NaOH/thiourea aqueous solution. The crystallinity, orientation and crystal size at each stage were determined from the WAXD analysis. Drawing of cellulose fibers in the coagulation (II) bath (H{sub 2}SO{sub 4}/H{sub 2}O) was found to generate higher orientation and crystallinity than drawing in the post-treatment (III). Although the post-treatment process also increased crystal orientation, it led to a decrease in crystallinity with notable reduction in the anisotropic fraction. Compared with commercial rayon fibers fabricated by the viscose process, the regenerated cellulose fibers exhibited higher crystallinity but lower crystal orientation. SAXS results revealed a clear scattering maximum along the meridian direction in all regenerated cellulose fibers, indicating the formation of lamellar structure during spinning.

Chen,X.; Burger, C.; Fang, D.; Ruan, D.; Zhang, L.; Hsiao, B.; Chu, B.

2006-01-01T23:59:59.000Z

3

Interactions of Endoglucanases with Amorphous Cellulose Films Resolved by Neutron Reflectometry and Quartz Crystal Microbalance with Dissipation Monitoring  

SciTech Connect (OSTI)

A study of the interaction of four endoglucanases with amorphous cellulose films by neutron reflectometry (NR) and quartz crystal microbalance with dissipation monitoring (QCM-D) is reported. The endoglucanases include a mesophilic fungal endoglucanase (Cel45A from H. insolens), a processive endoglucanase from a marine bacterium (Cel5H from S. degradans), and two from thermophilic bacteria (Cel9A from A. acidocaldarius and Cel5A from T. maritima). The use of amorphous cellulose is motivated by the promise of ionic liquid pretreatment as a second generation technology that disrupts the native crystalline structure of cellulose. The endoglucanases displayed highly diverse behavior. Cel45A and Cel5H, which possess carbohydrate-binding modules (CBMs), penetrated and digested within the bulk of the films to a far greater extent than Cel9A and Cel5A, which lack CBMs. While both Cel45A and Cel5H were active within the bulk of the films, striking differences were observed. With Cel45A, substantial film expansion and interfacial broadening were observed, whereas for Cel5H the film thickness decreased with little interfacial broadening. These results are consistent with Cel45A digesting within the interior of cellulose chains as a classic endoglucanase, and Cel5H digesting predominantly at chain ends consistent with its designation as a processive endoglucanase.

Cheng, Gang [Joint Bioenergy Institute; Liu, Zelin [Virginia Polytechnic Institute and State University (Virginia Tech); Kent, Michael S [Sandia National Laboratories (SNL); Majewski, Jaroslaw [Los Alamos National Laboratory (LANL); Michael, Jablin [Los Alamos National Laboratory (LANL); Jaclyn, Murton K [Sandia National Laboratories (SNL); Halbert, Candice E [ORNL; Datta, Supratim [Joint Bioenergy Institute; Chao, Wang [Virginia Polytechnic Institute and State University (Virginia Tech); Brown, Page [Sandia National Laboratories (SNL)

2012-01-01T23:59:59.000Z

4

Neutron Reflectometry and QCM-D Study of the Interaction of Cellulase Enzymes with Films of Amorphous Cellulose  

SciTech Connect (OSTI)

Improving the efficiency of enzymatic hydrolysis of cellulose is one of the key technological hurdles to reduce the cost of producing ethanol and other transportation fuels from lignocellulosic material. A better understanding of how soluble enzymes interact with insoluble cellulose will aid in the design of more efficient enzyme systems. We report a study involving neutron reflectometry (NR) and quartz crystal microbalance with dissipation (QCM-D) of the interaction of a commercial fungal enzyme extract (T. viride), two purified endoglucanses from thermophilic bacteria (Cel9A from A. acidocaldarius and Cel5A from T. maritima), and a mesophilic fungal endoglucanase (Cel45A from H. insolens) with amorphous cellulose films. The use of amorphous cellulose is motivated by the promise of ionic liquid pretreatment as a second generation technology that disrupts the native crystalline structure of cellulose. NR reveals the profile of water through the film at nm resolution, while QCM-D provides changes in mass and film stiffness. At 20 oC and 0.3 mg/ml, the T. viride cocktail rapidly digested the entire film, beginning from the surface followed by activity throughout the bulk of the film. For similar conditions, Cel9A and Cel5A were active for only a short period of time and only at the surface of the film, with Cel9A releasing 40 from the ~ 700 film and Cel5A resulting in only a slight roughening/swelling effect at the surface. Subsequent elevation of the temperature to the Topt in each case resulted in a very limited increase in activity, corresponding to the loss of an additional 60 from the film for Cel9A and 20 from the film for Cel5A, and very weak penetration into and digestion within the bulk of the film, before the activity again ceased. The results for Cel9A and Cel5A contrast sharply with results for Cel45A where very rapid and extensive penetration and digestion within the bulk of the film was observed at 20 C. We speculate that the large differences are due to the use of the thermophilic enzymes far below their optimal temperatures and also the presence of a cellulose binding module (CBM) on Cel45A while the thermophilic enzymes lack a CBM.

Halbert, Candice E [ORNL; Ankner, John Francis [ORNL; Kent, Michael S [Sandia National Laboratories (SNL); Jaclyn, Murton K [Sandia National Laboratories (SNL); Browning, Jim [ORNL; Cheng, Gang [Joint Bioenergy Institute; Liu, Zelin [Virginia Polytechnic Institute and State University (Virginia Tech); Majewski, Jaroslaw [Los Alamos National Laboratory (LANL); Supratim, Datta [Joint Bioenergy Institute; Michael, Jablin [Los Alamos National Laboratory (LANL); Bulent, Akgun [NIST Center for Neutron Research (NCRN), Gaithersburg, MD; Alan, Esker [Virginia Polytechnic Institute and State University (Virginia Tech); Simmons, Blake [Sandia National Laboratories (SNL)

2011-01-01T23:59:59.000Z

5

Cellulosic biomass could help meet California’s transportation fuel needs  

E-Print Network [OSTI]

Ethanol-production from cellobiose, amorphous cellulose, andsugars into ethanol. hemicellulose and cellulose by hydro-ethanol has been improving the technology for hydro- lysis of recalcitrant cellulose,

Wyman, Charles E.; Yang, Bin

2009-01-01T23:59:59.000Z

6

Production of permeable cellulose triacetate membranes  

DOE Patents [OSTI]

A phase inversion process for the preparation of cellulose triacetate (CTA) and regenerated cellulose membranes is disclosed. Such membranes are useful as supports for liquid membranes in facilitated transport processes, as microfiltration membranes, as dialysis or ultrafiltration membranes, and for the preparation of ion-selective electrodes. The process comprises the steps of preparing a casting solution of CTA in a solvent comprising a mixture of cyclohexanone and methylene chloride, casting a film from the casting solution, and immersing the cast film in a methanol bath. The resulting CTA membrane may then be hydrolyzed to regenerated cellulose using conventional techniques.

Johnson, B.M.

1986-12-23T23:59:59.000Z

7

Production of permeable cellulose triacetate membranes  

DOE Patents [OSTI]

A phase inversion process for the preparation of cellulose triacetate (CTA) and regenerated cellulose membranes is disclosed. Such membranes are useful as supports for liquid membranes in facilitated transport processes, as microfiltration membranes, as dialysis or ultrafiltration membranes, and for the preparation of ion-selective electrodes. The process comprises the steps of preparing a casting solution of CTA in a solvent comprising a mixture of cyclohexanone and methylene chloride, casting a film from the casting solution, and immersing the cast film in a methanol bath. The resulting CTA membrane may then be hydrolyzed to regenerated cellulose using conventional techniques.

Johnson, Bruce M. (Bend, OR)

1986-01-01T23:59:59.000Z

8

Cellulosic ethanol at last?  

Science Journals Connector (OSTI)

Cellulosic ethanol at last? 10.1126/science.345...The spigots are open at a new cellulosic ethanol plant in Emmetsburg, Iowa. PHOTO...northwest corner of Iowa? Cellulosic ethanol, in quantities that have never flowed...

Robert F. Service

2014-09-05T23:59:59.000Z

9

The Effects of Surfactant Pretreatment and Xylooligomers on Enzymatic Hydrolysis of Cellulose and Pretreated Biomass  

E-Print Network [OSTI]

the surface was more hydrophilic while the glucan and xylanxylan is a physical barrier that covers up the crystalline cellulose surfacesurface available for enzyme adsorption compared to the looser amorphous structure of xylan.

Qing, Qing

2010-01-01T23:59:59.000Z

10

Amorphous Silicon  

Broader source: Energy.gov [DOE]

DOE has a proven track record of funding successes in amorphous silicon (a-Si)research. A list of current projects, summary of the benefits, and discussion on the production and manufacturing of...

11

Regenerator seal  

DOE Patents [OSTI]

A method for manufacturing a hot side regenerator cross arm seal assembly having a thermally stablilized wear coating with a substantially flat wear surface thereon to seal between low pressure and high pressure passages to and from the hot inboard side of a rotary regenerator matrix includes the steps of forming a flat cross arm substrate member of high nickel alloy steel; fixedly securing the side edges of the substrate member to a holding fixture with a concave surface thereacross to maintain the substrate member to a slightly bent configuration on the fixture surface between the opposite ends of the substrate member to produce prestress therein; applying coating layers on the substrate member including a wear coating of plasma sprayed nickel oxide/calcium flouride material to define a wear surface of slightly concave form across the restrained substrate member between the free ends thereon; and thereafter subjecting the substrate member and the coating thereon to a heat treatment of 1600.degree. F. for sixteen hours to produce heat stabilizing growth in the coating layers on the substrate member and to produce a thermally induced growth stress in the wear surface that substantially equalizes the prestress in the substrate whereby when the cross arm is removed from the fixture surface following the heat treatment step a wear face is formed on the cross arm assembly that will be substantially flat between the ends.

Davis, Leonard C. (Indianapolis, IN); Pacala, Theodore (Indianapolis, IN); Sippel, George R. (Indianapolis, IN)

1981-01-01T23:59:59.000Z

12

Approaching zero cellulose loss in cellulose nanocrystal (CNC) production: recovery and characterization of cellulosic solid residues (CSR) and CNC  

Science Journals Connector (OSTI)

This study demonstrated the potential of simultaneously recovering cellulosic solid residues (CSR) and producing cellulose nanocrystals (CNCs) by strong sulfuric acid hydrolysis to minimize cellulose loss to near...

Q. Q. Wang; J. Y. Zhu; R. S. Reiner; S. P. Verrill; U. Baxa; S. E. McNeil

2012-12-01T23:59:59.000Z

13

Reduced shedding regenerator and method  

DOE Patents [OSTI]

A reduced shedding regenerator and method are disclosed with regenerator surfaces to minimize shedding of particles from the regenerator thereby alleviating a source of potential damage and malfunction of a thermal regenerative machine using the regenerator.

Qiu, Songgang (Richland, WA); Augenblick, John E. (Richland, WA); Erbeznik, Raymond M. (Kennewick, WA)

2007-05-22T23:59:59.000Z

14

Cellulosic Biofuels Disappoint  

Science Journals Connector (OSTI)

Cellulosic Biofuels Disappoint ... As part of the strategy, a goal of 36 billion gallons per year (bgy) of biofuel production was mandated by a Renewable Fuel Standard (RFS2) lasting from 2008 through 2022. ...

Jerald L. Schnoor

2011-08-19T23:59:59.000Z

15

Method of saccharifying cellulose  

DOE Patents [OSTI]

A method of saccharifying cellulose by incubation with the cellulase of Clostridium thermocellum in a broth containing an efficacious amount of a reducing agent. Other incubation parameters which may be advantageously controlled to stimulate saccharification include the concentration of alkaline earth salts, pH, temperature, and duration. By the method of the invention, even native crystalline cellulose such as that found in cotton may be completely saccharified.

Johnson, Eric A. (Brookline, MA); Demain, Arnold L. (Wellesley, MA); Madia, Ashwin (Decatur, IL)

1985-09-10T23:59:59.000Z

16

Four Cellulosic Ethanol Breakthroughs  

Broader source: Energy.gov [DOE]

Today, the nation's first ever commercial-scale cellulosic ethanol biorefinery to use corn waste as a feedstock officially opened for business in Emmetsburg, Iowa. POET-DSM’s Project LIBERTY is the second of two Energy Department-funded cellulosic ethanol biorefineries to come on line within the past year. Learn more about how the Energy Department is helping the nation reduce its dependence on foreign oil and move the clean energy economy forward.

17

Method of saccharifying cellulose  

DOE Patents [OSTI]

A method is disclosed of saccharifying cellulose by incubation with the cellulase of Clostridium thermocellum in a broth containing an efficacious amount of thiol reducing agent. Other incubation parameters which may be advantageously controlled to stimulate saccharification include the concentration of alkaline earth salts, pH, temperature, and duration. By the method of the invention, even native crystalline cellulose such as that found in cotton may be completely saccharified.

Johnson, E.A.; Demain, A.L.; Madia, A.

1983-05-13T23:59:59.000Z

18

Desulfurization sorbent regeneration  

DOE Patents [OSTI]

A spent solid sorbent resulting from the removal of hydrogen sulfide from a fuel gas flow is regenerated with a steam-air mixture. The mixture of steam and air may also include additional nitrogen or carbon dioxide. The gas mixture contacts the spent sorbent containing metal sulfide at a temperature above 500/sup 0/C to regenerate the sulfide to metal oxide or carbonate. Various metal species including the period four transition metals and the lanthanides are suitable sorbents that may be regenerated by this method. In addition, the introduction of carbon dioxide gas permits carbonates such as those of strontium, barium and calcium to be regenerated. The steam permits regeneration of spent sorbent without formation of metal sulfate. Moreover, the regeneration will proceed with low oxygen concentrations and will occur without the increase in temperature to minimize the risk of sintering and densification of the sorbent. This method may be used for high-temperature fuel cells.

Jalan, V.M.; Frost, D.G.

1982-07-07T23:59:59.000Z

19

Regeneration and reprogramming compared  

Science Journals Connector (OSTI)

Key pluripotency-associated factors, whose overexpression can drive somatic cells to reprogram as pluripotent stem cells, are also required for appendage regeneration in fish and amphibians.

Bea Christen; Vanesa Robles; Marina Raya; Ida Paramonov; Juan Belmonte

2010-01-20T23:59:59.000Z

20

Tritium in amorphous silicon  

SciTech Connect (OSTI)

Preliminary results on infrared and luminescence measurements of tritium incorporated amorphous silicon are reported. Tritium is an unstable isotope that readily substitutes hydrogen in the amorphous silicon network. Due to its greater mass, bonded tritium is found to introduce new stretching modes in the infrared spectrum. Inelastic collisions between the beta particles, produced as a result of tritium decay, and the amorphous silicon network, results in the generation of excess electron-hole pairs. Radiative recombination of these carriers is observed.

Sidhu, L.S.; Kosteski, T.; O`Leary, S.K.; Gaspari, F.; Zukotynski, S. [Univ. of Toronto, Ontario (Canada). Dept. of Electrical and Computer Engineering; Kherani, N.P.; Shmadya, W. [Ontario Hydro Technologies, Toronto, Ontario (Canada)

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Regeneration of starfish  

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

Regeneration of starfish Regeneration of starfish Name: komogo3 Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: My science book states that a cut up starfish can regrow into more starfish. I want more information. Can an arm regenerate a whole new starfish? I have trouble believing this. Replies: Starfish, also known as sea stars, (they are not fish) are capable of regenerating even one arm into a whole new body. This is only possible if the arm includes part of the central disc. If you cut off only the tip of an arm, that tip will not regenerate, but the animal will grow another arm. I have seen a single arm nearly 8 inches long with small 1/2 inch arms growing off of it, it will eventually become a whole new sea star. If you cut a sea star in quarters, right down the center, each piece will grow into a whole new sea star. I do not know how many pieces one can cut any one starfish into and still have each regenerate. As long as a piece has part of the central disk, it should regenerate into a whole organism. But if you cut a starfish in half, and then let it grow into an whole one before cutting it in half again, one should be able to do that indefinitely.

22

Why Sequence Cellulose Degrading Bacteria?  

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

Cellulose Degrading Bacteria? Cellulose Degrading Bacteria? One of the major DOE missions is the production of renewable fuels to reduce our dependence on foreign oil, and also to take the place of petroleum-based fuels as these resources dwindle. Biologically produced ethanol is one possible replacement for fossil fuels. Currently, ethanol is produced from corn starch, but there is much research into using lignocellulosic materials (those containing cellulose, hemicellulose, and lignin) as the raw material for ethanol production. Ethanol production from cellulose requires several steps: pretreatment with steam, acid, or ammonia; digestion of cellulose to sugars; and fermentation of sugars to ethanol. The slowest and most expensive step is the breakdown of cellulose, chemically accomplished by cellulases. The second and third

23

Microbial diversity of cellulose hydrolysis  

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

871; 871; NO. OF PAGES 5 Please cite this article in press as: Wilson DB. Microbial diversity of cellulose hydrolysis, Curr Opin Microbiol (2011), doi:10.1016/j.mib.2011.04.004 Available online at www.sciencedirect.com Microbial diversity of cellulose hydrolysis David B Wilson Enzymatic hydrolysis of cellulose by microorganisms is a key step in the global carbon cycle. Despite its abundance only a small percentage of microorganisms can degrade cellulose, probably because it is present in recalcitrant cell walls. There are at least five distinct mechanisms used by different microorganisms to degrade cellulose all of which involve cellulases. Cellulolytic organisms and cellulases are extremely diverse possibly because their natural substrates, plant cell walls, are very diverse. At this time the microbial ecology of cellulose degradation in any environment is still

24

Sandia National Laboratories: cellulosic biofuels  

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

cellulosic biofuels Joint BioEnergy Institute Oxime-NIMS Work Featured on the Cover of ACS Chemical Biology On July 31, 2014, in Biofuels, Biomass, Capabilities, Energy,...

25

Biofuel Development from Cellulosic Sources  

Science Journals Connector (OSTI)

Land-use changes resulting in habitat loss and habitat fragmentation can impact native wildlife species. However, cellulosic biomass feedstocks have the potential to provide habitat for...

Kimberly O’Keefe; Clint J. Springer; Jonathan Grennell…

2014-09-01T23:59:59.000Z

26

Regeneration of Polyborzaylene  

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

Regeneration of Polyborzaylene Regeneration of Polyborzaylene Regeneration of Polyborzaylene Method of producing ammonia borane, comprising providing polyborazylene; digesting the polyborazylene with a dithiol-containing agent to produce a boro-sulfide compound and a byproduct; converting the byproduct to the boro-sulfide product of step (b) by reaction with a first alkyl-tin hydride; and, converting the boro-sulfide compound produced in steps (b) and (c) to ammonia borane by reaction with a second alkyl-tin hydride. Available for thumbnail of Feynman Center (505) 665-9090 Email Regeneration of Polyborzaylene Method of producing ammonia borane, comprising providing polyborazylene; digesting the polyborazylene with a dithiol-containing agent to produce a boro-sulfide compound and a byproduct; converting the byproduct to the

27

Louisiana: Verenium Cellulosic Ethanol Demonstration Facility...  

Energy Savers [EERE]

Louisiana: Verenium Cellulosic Ethanol Demonstration Facility Louisiana: Verenium Cellulosic Ethanol Demonstration Facility April 9, 2013 - 12:00am Addthis In 2010, Verenium...

28

Amorphous diamond films  

DOE Patents [OSTI]

Amorphous diamond films having a significant reduction in intrinsic stress are prepared by biasing a substrate to be coated and depositing carbon ions thereon under controlled temperature conditions. 1 fig.

Falabella, S.

1998-06-09T23:59:59.000Z

29

Amorphous Medium Language  

E-Print Network [OSTI]

Programming reliable behavior on a large mesh network composed of unreliable parts is difficult. Amorphous Medium Language addresses this problem by abstracting robustness and networking issues away from the programmer via ...

Beal, Jacob

30

Compositions and methods for increasing cellulose production  

DOE Patents [OSTI]

This disclosure relates to methods and compositions for genetically altering cellulose biosynthesis.

Yang, Zhenbiao (Riverside, CA); Karr, Stephen (Camarillo, CA)

2012-05-01T23:59:59.000Z

31

PROCESS DESIGN AND OPTIMIZATION OF CELLULOSE HYDROLYSIS  

E-Print Network [OSTI]

controlled, ethanol produced from cellulose is not currentlycellulose to sugars that are readily fermentable to ethanol.

Lindsey, R.R.

2011-01-01T23:59:59.000Z

32

Studying Cellulose Fiber Structure by SEM, XRD, NMR and Acid Hydrolysis  

SciTech Connect (OSTI)

Cotton linters were partially hydrolyzed in dilute acid and the morphology of remaining macrofibrils studied with Scanning Electron Microscopy (SEM) under various magnifications. The crystal region (microfibril bundles) in the macrofibrils was not altered by hydrolysis, and only amorphous cellulose was hydrolyzed and leached out from the macrofibrils. The diameter of microfibril bundles was 20-30 nm after the amorphous cellulose was removed by hydrolysis. XRD experiments confirm the unaltered diameter of the microfibrils after hydrolysis. The strong stability of these microfibril bundles in hydrolysis limits both the total sugar monomer yield and the size of nano particles or rods produced in hydrolysis. The large surface potential on the remaining microfibril bundles drives the agglomeration of macrofibrils.

Zhao, Haibo; Kwak, Ja Hun; Zhang, Z. Conrad; Brown, Heather M.; Arey, Bruce W.; Holladay, John E.

2007-03-21T23:59:59.000Z

33

Magnetic cellulose-derivative structures  

DOE Patents [OSTI]

Structures to serve as selective magnetic sorbents are formed by dissolving a cellulose derivative such as cellulose triacetate in a solvent containing magnetic particles. The resulting solution is sprayed as a fine mist into a chamber containing a liquid coagulant such as n-hexane in which the cellulose derivative is insoluble but in which the coagulant is soluble or miscible. On contact with the coagulant, the mist forms free-flowing porous magnetic microspheric structures. These structures act as containers for the ion-selective or organic-selective sorption agent of choice. Some sorption agents can be incorporated during the manufacture of the structure. 3 figs.

Walsh, M.A.; Morris, R.S.

1986-09-16T23:59:59.000Z

34

Magnetic cellulose-derivative structures  

DOE Patents [OSTI]

Structures to serve as selective magnetic sorbents are formed by dissolving a cellulose derivative such as cellulose triacetate in a solvent containing magnetic particles. The resulting solution is sprayed as a fine mist into a chamber containing a liquid coagulant such as n-hexane in which the cellulose derivative is insoluble but in which the coagulant is soluble or miscible. On contact with the coagulant, the mist forms free-flowing porous magnetic microspheric structures. These structures act as containers for the ion-selective or organic-selective sorption agent of choice. Some sorbtion agents can be incorporated during the manufacture of the structure.

Walsh, Myles A. (Falmouth, MA); Morris, Robert S. (Fairhaven, MA)

1986-09-16T23:59:59.000Z

35

Breaking the Biological Barriers to Cellulosic Ethanol, June...  

Energy Savers [EERE]

Breaking the Biological Barriers to Cellulosic Ethanol, June 2006 Breaking the Biological Barriers to Cellulosic Ethanol, June 2006 Breaking the Biological Barriers to Cellulosic...

36

EFFECT OF NITROGEN OXIDE PRETREATMENTS ON ENZYMATIC HYDROLYSIS OF CELLULOSE  

E-Print Network [OSTI]

Bioconversion of Cellulose and Production of Ethanol," LBL-of Cellulose and the Production of Ethanol," LBL-6859,the cellulose is a major obstacle to hydrolysis. Ethanol The

Borrevik, R.K.

2011-01-01T23:59:59.000Z

37

The Properties of Amorphous Boron  

Science Journals Connector (OSTI)

... few particles of amorphous boron are allowed to fall into fused potassium chlorate, quite a pyrotechnic display is produced. The behaviour of certain fluorides towards amorphous boron is interesting. Silver ...

A. E. TUTTON

1892-03-31T23:59:59.000Z

38

Laser Assisted Crystallization of Ferromagnetic Amorphous Ribbons...  

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

Ferromagnetic Amorphous Ribbons: A Multimodal Characterization and Thermal Model Study. Laser Assisted Crystallization of Ferromagnetic Amorphous Ribbons: A Multimodal...

39

Structure Study of Cellulose Fibers Wet-Spun from Environmentally Friendly NaOH/Urea Aqueous Solutions  

SciTech Connect (OSTI)

In this study, structure changes of regenerated cellulose fibers wet-spun from a cotton linter pulp (degree of polymerization {approx}620) solution in an NaOH/urea solvent under different conditions were investigated by simultaneous synchrotron wide-angle X-ray diffraction (WAXD) and small-angle X-ray scattering (SAXS). WAXD results indicated that the increase in flow rate during spinning produced a better crystal orientation and a higher degree of crystallinity, whereas a 2-fold increase in draw ratio only affected the crystal orientation. When coagulated in a H{sub 2}SO{sub 4}/Na{sub 2}SO{sub 4} aqueous solution at 15 {sup o}C, the regenerated fibers exhibited the highest crystallinity and a crystal orientation comparable to that of commercial rayon fibers by the viscose method. SAXS patterns exhibited a pair of meridional maxima in all regenerated cellulose fibers, indicating the existence of a lamellar structure. A fibrillar superstructure was observed only at higher flow rates (>20 m/min). The conformation of cellulose molecules in NaOH/urea aqueous solution was also investigated by static and dynamic light scattering. It was found that cellulose chains formed aggregates with a radius of gyration, R{sub g}, of about 232 nm and an apparent hydrodynamic radius, R{sub h}, of about 172 nm. The NaOH/urea solvent system is low-cost and environmentally friendly, which may offer an alternative route to replace more hazardous existing methods for the production of regenerated cellulose fibers.

Chen,X.; Burger, C.; Wan, F.; Zhang, J.; Rong, L.; Hsiao, B.; Chu, B.; Cai, J.; Zhang, L.

2007-01-01T23:59:59.000Z

40

Cellulosic Biofuels and the Road to Energy Security  

Science Journals Connector (OSTI)

Cellulosic Biofuels and the Road to Energy Security ... And we badly need some operating commercial scale cellulosic biofuel plants. ...

Bruce E. Dale

2011-11-07T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Cellulose hydrogels prepared from micron-sized bamboo cellulose fibers  

Science Journals Connector (OSTI)

Abstract We demonstrated for the first time that dimensionally stable hydrogels could be obtained from bamboo pulp fibers through dialysis against distilled water followed by a short time of ultrasonic treatment. Micron-sized short fibers rather than cellulose nanofibrils constituted the majority of fibers in the hydrogels. During the pulping process with HNO3 and KClO3, carboxylic groups could be introduced to cellulose due to the mild oxidation of hydroxyl groups. When presented in aqueous NaOH, the carboxylic groups could be converted into their sodium salt form. The subsequent dialysis treatment against water made the negatively charged COO? groups extensively exposed. The negatively charged cellulose fibers could induce considerable electrostatic repulsion between them, which was discovered to govern the formation of hydrogels. In addition, it was revealed that homogeneous hydrogels could be formed when the pH was at 7, 9 and 11. However, when salt was added, no dimensionally stable hydrogel was obtained.

Xiaofang Zhang; Yaru Wang; Canhui Lu; Wei Zhang

2014-01-01T23:59:59.000Z

42

Ethanol from Cellulosic Biomass [and Discussion  

Science Journals Connector (OSTI)

26 January 1983 research-article Ethanol from Cellulosic Biomass [and Discussion...of cellulosic biomass to liquid fuel, ethanol. Within the scope of this objective...maximize the conversion efficiency of ethanol production from biomass. This can be...

1983-01-01T23:59:59.000Z

43

Ethanol from Cellulosic Biomass [and Discussion  

Science Journals Connector (OSTI)

...research-article Ethanol from Cellulosic Biomass [and Discussion] D. I. C. Wang G...microbiological conversion of cellulosic biomass to liquid fuel, ethanol. Within the...efficiency of ethanol production from biomass. This can be achieved through the effective...

1983-01-01T23:59:59.000Z

44

Cellulosic ethanol | Open Energy Information  

Open Energy Info (EERE)

Cellulosic ethanol Cellulosic ethanol Jump to: navigation, search Cellethanol.jpg Cellulosic ethanol is identical to first generation bio ethanol except that it can be derived from agricultural residues, other lignocellulosic raw materials or energy crops. These lignocellulosic raw materials are more widely available than the standard material used for ethanol. They are also considered to be more sustainable, however they need to be broken down (hydrolysed) into simple sugars prior to distillation, a much more complex process than the first generation bioethanol. It first must go through pretreatment,hydrolysis then a conversion. Research since the 1970s and large investments are being made in the US and Europe to speed up development of this route to bioethanol. Biomass refineries like Inbicon in Denmark are producing

45

Supplementation with xylanase and beta-xylosidase to reduce xylo-oligomer and xylan inhibition of enzymatic hydrolysis of cellulose and pretreated corn stover  

E-Print Network [OSTI]

surface available for enzyme adsorption compared with the looser amorphous structure of xylan.xylan removal to enhancement of substrate accessibility to enzymes through exposing more crystal- line cellulose surface.surface. In addition, our recent research has suggested that hemicelluloses, particularly in the form of xylan and

Qing, Qing; Wyman, Charles E

2011-01-01T23:59:59.000Z

46

Amorphous Binary Alloy Structures  

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

Hope Ishii, Sean Brennan and Arthur Bienenstock SSRL/SLAC Hope Ishii, Sean Brennan and Arthur Bienenstock SSRL/SLAC Figure 1: Partial Pair Distribution Functions extracted from the scattering patterns obtained at four different photon energies near the Ge and Mo K-absorption edges. Attempting to determine and describe the atomic arrangements in an amorphous material is a daunting prospect. A considerable advance has been made in the anomalous X-ray scattering approach to determining these arrangements in materials containing two atomic species. Up until the advent of X-ray synchrotron radiation, the X-ray radial distribution function (RDF) method was the most widely used approach for structure analysis of amorphous materials. The RDF is the probability of finding two electrons in a sample separated by a distance r, but with all

47

Consolidated Bio-Processing of Cellulosic Biomass for Efficient Biofuel Production Using Yeast Consortium  

E-Print Network [OSTI]

performance, ethanol and cellulose hydrolysis measurementsSimultaneous ethanol fermentation and cellulose hydrolysisand fermentation of cellulose to ethanol. Appl. Environ.

Goyal, Garima

2011-01-01T23:59:59.000Z

48

Purification of aqueous cellulose ethers  

SciTech Connect (OSTI)

Manufacture of cellulose ethers usually involves high amounts of salt by-products. For application of the product, salt must be removed. In this work, we have studied the injection of high-pressure CO{sub 2} into an aqueous polymer-salt solution; we find that upon addition of isopropanol in addition to CO{sub 2}, the solution separates into two phases. One phase is rich in polymer and water, and the other phase contains mostly isopropanol, water and CO{sub 2}. The salt distributes between the two phases, thereby offering interesting possibilities for development of a new purification process for water-soluble polymers. This work presents experimental phase-equilibrium data for hydroxyethyl cellulose and sodium carboxymethyl cellulose with sodium acetate and potassium sulfate, respectively, in the region 40{degree}C and 30 to 80 bar. Based on these data, we suggest a process for the manufacture and purification of water-soluble cellulose ethers. 15 refs., 14 figs., 9 tabs.

Bartscherer, K.A.; de Pablo, J.J.; Bonnin, M.C.; Prausnitz, J.M.

1990-07-01T23:59:59.000Z

49

Thermal Regenerator Testing | Department of Energy  

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

Thermal Regenerator Testing Thermal Regenerator Testing Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007,...

50

Bioactive Glass Scaffolds for Bone Regeneration  

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

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

51

Magnetism in amorphous transition metals  

Science Journals Connector (OSTI)

Overall features of magnetism in amorphous transition metals have been investigated on the basis of a finite-temperature theory of the local-environment effect. It is shown that the simple ferromagnetism of Fe, Co, and Ni is drastically changed by structural disorder; amorphous transition metals form spin glasses (SG’s) for compositions near amorphous Fe (6.7?N?7.35), ferromagnets for compositions near amorphous Co (7.35?N?9.0), and paramagnetisms for compositions near amorphous Ni (9.0?N?10.0) where N is the number of d electrons. The SG is accompanied by formation of local ferromagnetic clusters for N?7.2, and shows reentrant behavior at the ferromagnetic boundary N?7.35. The ferromagnetism in amorphous transition metals is shown to be well explained by the main-peak position in the noninteracting densities of states. It is found that structural disorder enhances the Curie temperatures (TC) in the range 7.9?N?8.5 as compared with bcc and fcc structures. These results explain recent experimental data for the SG in Fe-rich amorphous alloys and the high TC in amorphous Co-Y alloys, but they are quite different from the early picture obtained for amorphous transition-metal–metalloid alloys.

Y. Kakehashi

1991-05-01T23:59:59.000Z

52

Programming an Amorphous Computational Medium  

E-Print Network [OSTI]

Amorphous computing considers the problem of controllingmillions of spatially distributed unreliable devices which communicateonly with nearby neighbors. To program such a system, we need a highleveldescription language ...

Beal, Jacob

53

Catalyst regeneration: the business case  

SciTech Connect (OSTI)

As an alternative to purchasing new catalyst, technological and economic advantages make a compelling case for regenerating rather than replacing the metal or ceramic that enables selective catalytic reduction systems to capture NOx. The article examines the differences in the process, economics and reliability of new catalyst versus regenerated catalyst, and in rejuvenation versus regeneration of catalysis. SCR-Tech has developed programs to evaluate most catalyst management scenarios. They can predict catalyst life, allow for mixing and matching different catalyst types, provide risk assessment associated with extending catalyst life and evaluate site-specific economics. 2 figs., 1 tab.

McMahon, B. [SCR-Tech (United States)

2006-01-15T23:59:59.000Z

54

Enzymatic Hydrolysis of Cellulosic Biomass  

SciTech Connect (OSTI)

Biological conversion of cellulosic biomass to fuels and chemicals offers the high yields to products vital to economic success and the potential for very low costs. Enzymatic hydrolysis that converts lignocellulosic biomass to fermentable sugars may be the most complex step in this process due to substrate-related and enzyme-related effects and their interactions. Although enzymatic hydrolysis offers the potential for higher yields, higher selectivity, lower energy costs, and milder operating conditions than chemical processes, the mechanism of enzymatic hydrolysis and the relationship between the substrate structure and function of various glycosyl hydrolase components are not well understood. Consequently, limited success has been realized in maximizing sugar yields at very low cost. This review highlights literature on the impact of key substrate and enzyme features that influence performance to better understand fundamental strategies to advance enzymatic hydrolysis of cellulosic biomass for biological conversion to fuels and chemicals. Topics are summarized from a practical point of view including characteristics of cellulose (e.g., crystallinity, degree of polymerization, and accessible surface area) and soluble and insoluble biomass components (e.g., oligomeric xylan, lignin, etc.) released in pretreatment, and their effects on the effectiveness of enzymatic hydrolysis. We further discuss the diversity, stability, and activity of individual enzymes and their synergistic effects in deconstructing complex lignocellulosic biomass. Advanced technologies to discover and characterize novel enzymes and to improve enzyme characteristics by mutagenesis, post-translational modification, and over-expression of selected enzymes and modifications in lignocellulosic biomass are also discussed.

Yang, Bin; Dai, Ziyu; Ding, Shi-You; Wyman, Charles E.

2011-08-22T23:59:59.000Z

55

Catalytic transformation of cellulose into platform chemicals  

Science Journals Connector (OSTI)

Conversion of biomass to renewable and valuable chemicals has attracted global interest in order to build up sustainable societies. Cellulose is the most abundant and non-food biomass; however, the low reactivity of cellulose has prevented its use in chemical industry except for the paper manufacturing. The heterogeneous catalysis for the conversion of cellulose has been expected to overcome this issue, because various types of heterogeneous catalysts can be designed and applied in a wide range of reaction conditions. Furthermore, solid catalysts are easily recovered and reused. In this review article, we show the present situation and perspective of heterogeneous catalysis for the transformation of cellulose into useful platform chemicals.

Mizuho Yabushita; Hirokazu Kobayashi; Atsushi Fukuoka

2014-01-01T23:59:59.000Z

56

Accelerated Cellulose Depolymerization Catalyzed by Paired Metal...  

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

Depolymerization Catalyzed by Paired Metal Chlorides in Ionic Liquid Solvent. Accelerated Cellulose Depolymerization Catalyzed by Paired Metal Chlorides in Ionic Liquid...

57

Microwave Regenerated DPF for Auxiliary Power Units and Diesel...  

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

Microwave Regenerated DPF for Auxiliary Power Units and Diesel Hybrid Vehicles Microwave Regenerated DPF for Auxiliary Power Units and Diesel Hybrid Vehicles Microwave regeneration...

58

Inverse Temperature-Dependent Pathway of Cellulose Decrystallization...  

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

unchanged after the dimer diffused into the cellulose matrix. On the other hand, the rate of TFA penetration into the cellulose matrix was greatly retarded at higher...

59

Advancing Cellulosic Ethanol for Large Scale Sustainable Transportation  

E-Print Network [OSTI]

processes for cellulosic biomass conversion are commercial •and advances in biomass conversion technologies forenhance conversion and extend impact of cellulosic biomass

Wyman, C

2007-01-01T23:59:59.000Z

60

Methods for enhancing the degradation or conversion of cellulosic material  

DOE Patents [OSTI]

The present invention relates to methods for degrading or converting a cellulosic material and for producing a substance from a cellulosic material.

Harris, Paul (Carnation, WA) Rey, Michael (Davis, CA); Ding, Hanshu (Davis, CA)

2009-10-27T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Single-step conversion of cellulose to 5-hydroxymethylfurfural...  

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

Single-step conversion of cellulose to 5-hydroxymethylfurfural (HMF), a versatileplatform chemical. Single-step conversion of cellulose to 5-hydroxymethylfurfural (HMF), a...

62

Advancing Cellulosic Ethanol for Large Scale Sustainable Transportation  

E-Print Network [OSTI]

of glucose from cellulose Projected Cellulosic Ethanol CostsEthanol Research • Improve the understanding of biomass fractionation, pretreatment, and cellulosecellulose to glucose, and ferment all sugars Ethanol

Wyman, C

2007-01-01T23:59:59.000Z

63

Alternative Fuels Data Center: Cellulosic Ethanol Research and Development  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Cellulosic Ethanol Cellulosic Ethanol Research and Development Tax Credit to someone by E-mail Share Alternative Fuels Data Center: Cellulosic Ethanol Research and Development Tax Credit on Facebook Tweet about Alternative Fuels Data Center: Cellulosic Ethanol Research and Development Tax Credit on Twitter Bookmark Alternative Fuels Data Center: Cellulosic Ethanol Research and Development Tax Credit on Google Bookmark Alternative Fuels Data Center: Cellulosic Ethanol Research and Development Tax Credit on Delicious Rank Alternative Fuels Data Center: Cellulosic Ethanol Research and Development Tax Credit on Digg Find More places to share Alternative Fuels Data Center: Cellulosic Ethanol Research and Development Tax Credit on AddThis.com... More in this section... Federal State

64

Fabrication of amorphous diamond films  

DOE Patents [OSTI]

Amorphous diamond films having a significant reduction in intrinsic stress are prepared by biasing a substrate to be coated and depositing carbon ions thereon under controlled temperature conditions. 1 fig.

Falabella, S.

1995-12-12T23:59:59.000Z

65

Project LIBERTY Biorefinery Starts Cellulosic Ethanol Production  

Office of Energy Efficiency and Renewable Energy (EERE)

Project LIBERTY, the nation’s first commercial-scale cellulosic ethanol plant to use corn waste as a feedstock, announced the start of production today. Once operating at full, commercial-scale, the biorefinery in Emmetsburg, Iowa will produce 25 million gallons of cellulosic ethanol per year - enough to avoid approximately 210,000 tons of CO2 emissions annually.

66

Alternative Fuels Data Center: Cellulosic Biofuel Tax Exemption  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Cellulosic Biofuel Tax Cellulosic Biofuel Tax Exemption to someone by E-mail Share Alternative Fuels Data Center: Cellulosic Biofuel Tax Exemption on Facebook Tweet about Alternative Fuels Data Center: Cellulosic Biofuel Tax Exemption on Twitter Bookmark Alternative Fuels Data Center: Cellulosic Biofuel Tax Exemption on Google Bookmark Alternative Fuels Data Center: Cellulosic Biofuel Tax Exemption on Delicious Rank Alternative Fuels Data Center: Cellulosic Biofuel Tax Exemption on Digg Find More places to share Alternative Fuels Data Center: Cellulosic Biofuel Tax Exemption on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Cellulosic Biofuel Tax Exemption Fuel consisting of cellulosic biofuel or a blend of gasoline and cellulosic

67

Definition: Cellulosic ethanol | Open Energy Information  

Open Energy Info (EERE)

Dictionary.png Dictionary.png Cellulosic ethanol An advanced type of biofuel that is produced by breaking down and using the cellulose compound found in trees and grasses.[1] View on Wikipedia Wikipedia Definition Cellulosic ethanol is a biofuel produced from wood, grasses, or the inedible parts of plants. It is a type of biofuel produced from lignocellulose, a structural material that comprises much of the mass of plants. Lignocellulose is composed mainly of cellulose, hemicellulose and lignin. Corn stover, Panicum virgatum (switchgrass), Miscanthus grass species, wood chips and the byproducts of lawn and tree maintenance are some of the more popular cellulosic materials for ethanol production. Production of ethanol from lignocellulose has the advantage of abundant and

68

Cellulose Pyrolysis A Literature, Review.  

Office of Scientific and Technical Information (OSTI)

Reaction Mechanisms in Reaction Mechanisms in Cellulose Pyrolysis A Literature, Review. - - pacific N o r t h ~ ~ ~ , baboratwies I - - bCL-T-,,;, .,- , . . . I ' I . - " 1- jl,! # . .' , . - --h 1 , i b - . "I 1.- . . ., .. ' N O T - I C E , , If PACIF tC NORTHWLST U B O R A T ~ R Y .4peiild by B h m E far c h t ,EP4ERGY RESEARCH AN0 PEVELOPMEM ADMtNlSTRAnQN U m h Contract Z Y - ~ ~ - C ~ & I # D w n : m a , m & l 3 Q j l m OIdrfrn m y - !*? 1SI71Y9 1 - m-u3 2s-m .**-2?3 ,Sbca lcPa w m *a0 Iffy &a It- w-% w w @.a SlO.0 m u 6 REACTION MECHANISMS IN CELLULOSE PYROLYSIS A LITERATURE REVIEW by Peter M. Molton T.F. Demmitt Chemical Technology Department BATTELLE Pacific Northwest Laboratories Richland, Washington 99352 CONTENTS . . . . . . . . . . . . . . L I S T OF F I G U R E S iii L I S T O F T A B L E S . . . . . . . . . . . . . . i v . . . . . . . . . . . . . I . INTRODUCTION 1

69

Effects of Dilute Acid Pretreatment on Cellulose DP and the Relationship Between DP Reduction and Cellulose Digestibility  

SciTech Connect (OSTI)

The degree of polymerization(DP) of cellulose is considered to be one of the most important properties affecting the enzymatic hydrolysis of cellulose. Various pure cellulosic and biomass materials have been used in a study of the effect of dilute acid treatment on cellulose DP. A substantial reduction in DP was found for all pure cellulosic materials studied even at conditions that would be considered relatively mild for pretreatment. The effect of dilute acid pretreatment on cellulose DP in biomass samples was also investigated. Corn stover pretreated with dilute acid under the most optimal conditions contained cellulose with a DPw in the range of 1600{approx}3500, which is much higher than the level-off DP(DPw 150{approx}300) obtained with pure celluloses. The effect of DP reduction on the saccharification of celluloses was also studied. From this study it does not appear that cellulose DP is a main factor affecting cellulose saccharification.

Wang, W.; Chen, X.; Tucker, M.; Himmel, M. E.; Johnson, D. K.

2012-01-01T23:59:59.000Z

70

REgeneration Finance | Open Energy Information  

Open Energy Info (EERE)

REgeneration Finance REgeneration Finance Jump to: navigation, search Name REgeneration Finance Place Harrison, New York Zip 10528 Sector Solar Product New York State-based distributed solar generation project financier and developer. Coordinates 35.10917°, -85.143009° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.10917,"lon":-85.143009,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

71

Regenerator cross arm seal assembly  

DOE Patents [OSTI]

A seal assembly for disposition between a cross arm on a gas turbine engine block and a regenerator disc, the seal assembly including a platform coextensive with the cross arm, a seal and wear layer sealingly and slidingly engaging the regenerator disc, a porous and compliant support layer between the platform and the seal and wear layer porous enough to permit flow of cooling air therethrough and compliant to accommodate relative thermal growth and distortion, a dike between the seal and wear layer and the platform for preventing cross flow through the support layer between engine exhaust and pressurized air passages, and air diversion passages for directing unregenerated pressurized air through the support layer to cool the seal and wear layer and then back into the flow of regenerated pressurized air.

Jackman, Anthony V. (Indianapolis, IN)

1988-01-01T23:59:59.000Z

72

Combined inactivation of the Clostridium cellulolyticum lactate and malate dehydrogenase genes substantially increases ethanol yield from cellulose and switchgrass fermentations  

E-Print Network [OSTI]

Keywords: Cellulose, ethanol, biofuel, Clostridiumincreases ethanol yield from cellulose and switchgrassincreases ethanol yield from cellulose and switchgrass

2012-01-01T23:59:59.000Z

73

Muscle Cells Provide Instructions for Planarian Regeneration  

E-Print Network [OSTI]

Regeneration requires both potential and instructions for tissue replacement. In planarians, pluripotent stem cells have the potential to produce all new tissue. The identities of the cells that provide regeneration ...

Witchley, Jessica N.

74

Spinal cord implants for nerve regeneration  

E-Print Network [OSTI]

It has only been in the last couple decades that the potential for regeneration in the spinal cord became accepted. However, there is still no proven method for enabling this regeneration. An implant model was developed ...

Abbaschian, Lara Suzanne, 1979-

2004-01-01T23:59:59.000Z

75

Cellulose- and Xylan-Degrading Thermophilic Anaerobic Bacteria from Biocompost  

Science Journals Connector (OSTI)

...to utilize both cellulose and xylan, including strains of Clostridium...species reported to utilize xylan, and the rate of cellulose...able to degrade cellulose, xylan, and their mixture with the...locations 40 to 50 cm below the surface and temperatures ranging from...

M. V. Sizova; J. A. Izquierdo; N. S. Panikov; L. R. Lynd

2011-02-11T23:59:59.000Z

76

Electrically-Assisted Diesel Particulate Filter Regeneration...  

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

More Documents & Publications Substrate Studies of an Electrically-Assisted Diesel Particulate Filter Electrically-Assisted Diesel Particulate Filter Regeneration...

77

Amorphous-diamond electron emitter  

DOE Patents [OSTI]

An electron emitter comprising a textured silicon wafer overcoated with a thin (200 .ANG.) layer of nitrogen-doped, amorphous-diamond (a:D-N), which lowers the field below 20 volts/micrometer have been demonstrated using this emitter compared to uncoated or diamond coated emitters wherein the emission is at fields of nearly 60 volts/micrometer. The silicon/nitrogen-doped, amorphous-diamond (Si/a:D-N) emitter may be produced by overcoating a textured silicon wafer with amorphous-diamond (a:D) in a nitrogen atmosphere using a filtered cathodic-arc system. The enhanced performance of the Si/a:D-N emitter lowers the voltages required to the point where field-emission displays are practical. Thus, this emitter can be used, for example, in flat-panel emission displays (FEDs), and cold-cathode vacuum electronics.

Falabella, Steven (Livermore, CA)

2001-01-01T23:59:59.000Z

78

PROCESS DEVELOPMENT STUDIES ON THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL  

E-Print Network [OSTI]

BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL underBioconversion of Cellulose and Production of Ethanol, LBL-of Cellulose by Coupling with Ethanol Fermentation (with

Wilke, C.R.

2011-01-01T23:59:59.000Z

79

PILOT PLANT STUDIES OF THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL  

E-Print Network [OSTI]

of Cellulose by Coupling with Ethanol Fermentation." Reportand Continuous Cellulose Hydrolysis with and without EthanolLindsey. CELLULOSE BIOCONVERSION TO SUGARS AND ETHANOL

Wilke, C.R.

2010-01-01T23:59:59.000Z

80

PROCESS DEVELOPMENT STUDIES ON THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL  

E-Print Network [OSTI]

of Cellulose by Coupling with Ethanol Fermentation." ReportOf Cellulose And Production Of Ethanol I Charles R. WilkeBIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL under

Wilke, C.R.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

PROCESS DEVELOPMENT STUDIES OF THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL  

E-Print Network [OSTI]

BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL CharlesBIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL Charlesof Cellulose and Production of Ethanol," Lawrence Berkeley

Wilke, Charles R.

2014-01-01T23:59:59.000Z

82

PROCESS DEVELOPMENT STUDIES ON THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL  

E-Print Network [OSTI]

Bioconversion of Cellulose and Production of Ethanol." (JuneBIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL CharlesBIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL Charles

Wilke, Charles R.

2012-01-01T23:59:59.000Z

83

PROCESS DEVELOPMENT STUDIES ON THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL  

E-Print Network [OSTI]

with either enzyme or cellulose, III, ETHANOL FERMENTATIONof Cellulose and Production of Ethanol," Progress Report,of Cellulose and Production of Ethanol," Progress Report,

Wilke, Charles R.

2011-01-01T23:59:59.000Z

84

The Potential of Cellulosic Ethanol Production from Municipal Solid Waste: A Technical and Economic Evaluation  

E-Print Network [OSTI]

to fuel ethanol because it not only contains cellulose andCellulose conversion, % Co-Fermentation Glucose-ethanolamount of cellulose, can be used as fuel ethanol feedstocks

Shi, Jian; Ebrik, Mirvat; Yang, Bin; Wyman, Charles E.

2009-01-01T23:59:59.000Z

85

PROCESS DEVELOPMENT STUDIES ON THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL  

E-Print Network [OSTI]

BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL underof Cellulose by Coupling with Ethanol Fermentation, withCandidate. CELLULOSE BIOCONVERSION TO SUGARS AND ETHANOL

Wilke, C.R.

2011-01-01T23:59:59.000Z

86

High-Temperature Enzymatic Breakdown of Cellulose  

Science Journals Connector (OSTI)

...Materiais, Campinas/SP, Brazil. Supplemental material...friends at the National Renewable Energy Laboratory (NREL) for...funded by Department of Energy awards 06103-OKL and...Cellulose is an abundant and renewable biopolymer that can be...

Hongliang Wang; Fabio Squina; Fernando Segato; Andrew Mort; David Lee; Kirk Pappan; Rolf Prade

2011-06-17T23:59:59.000Z

87

Flocculation of microfibrillated cellulose in shear flow  

Science Journals Connector (OSTI)

In this work, the rheological properties of microfibrillated cellulose suspensions under stepped flow and constant shear were studied using a combination of rotational dynamic rheometer and digital imaging. Du...

Anni Karppinen; Tapio Saarinen; Juha Salmela; Antti Laukkanen…

2012-12-01T23:59:59.000Z

88

Cellulose biosynthesis and function in bacteria.  

Science Journals Connector (OSTI)

...for obtaining enhanced or reduced expres- sion by genetic engineering; as mentioned above, the genes for cellulose synthesis reside...food stabilizers (102a), and acoustic diaphragms for audio instruments (80a). Eventually, the wide availability of...

P Ross; R Mayer; M Benziman

1991-03-01T23:59:59.000Z

89

Transition from Irradiation-Induced Amorphization to Crystallization...  

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

from Irradiation-Induced Amorphization to Crystallization in Nanocrystalline Silicon Carbide. Transition from Irradiation-Induced Amorphization to Crystallization in...

90

Time-resolved X-ray diffraction microprobe studies of the conversion of cellulose I to ethylenediamine-cellulose I  

SciTech Connect (OSTI)

Structural changes during the treatment of films of highly crystalline microfibers of Cladophora cellulose with ethylenediamine (EDA) have been studied by time-resolved X-ray microprobe diffraction methods. As EDA penetrates the sample and converts cellulose I to EDA-cellulose I, the measured profile widths of reflections reveal changes in the shapes and average dimensions of cellulose I and EDA-cellulose I crystals. The (200) direction of cellulose I is most resistant to EDA penetration, with EDA penetrating most effectively at the hydrophilic edges of the hydrogen bonded sheets of cellulose chains. Most of the cellulose chains in the initial crystals of cellulose I are incorporated into crystals of EDA-cellulose I. The size of the emerging EDA-cellulose I crystals is limited to about half of their size in cellulose I, most likely due to strains introduced by the penetration of EDA molecules. There is no evidence of any gradual structural transition from cellulose I to EDA-cellulose I involving a continuously changing intermediate phase. Rather, the results point to a rapid transition to EDA-cellulose I in regions of the microfibrils that have been penetrated by EDA.

Nishiyama, Yoshiharu; Wada, Masahisa; Hanson, B. Leif; Langan, Paul (Toledo); (U of Tokyo); (CNRS-CRMD); (LANL)

2010-08-03T23:59:59.000Z

91

Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Cellulosic Ethanol Cellulosic Ethanol Investment Tax Credit to someone by E-mail Share Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit on Facebook Tweet about Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit on Twitter Bookmark Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit on Google Bookmark Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit on Delicious Rank Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit on Digg Find More places to share Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Cellulosic Ethanol Investment Tax Credit A qualified investor may receive a tax credit of up to 40% of an

92

Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Cellulosic Ethanol Cellulosic Ethanol Investment Tax Credit to someone by E-mail Share Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit on Facebook Tweet about Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit on Twitter Bookmark Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit on Google Bookmark Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit on Delicious Rank Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit on Digg Find More places to share Alternative Fuels Data Center: Cellulosic Ethanol Investment Tax Credit on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Cellulosic Ethanol Investment Tax Credit A tax credit is available for investments in a qualified small business

93

Alternative Fuels Data Center: Cellulosic Ethanol Production Financing  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Cellulosic Ethanol Cellulosic Ethanol Production Financing to someone by E-mail Share Alternative Fuels Data Center: Cellulosic Ethanol Production Financing on Facebook Tweet about Alternative Fuels Data Center: Cellulosic Ethanol Production Financing on Twitter Bookmark Alternative Fuels Data Center: Cellulosic Ethanol Production Financing on Google Bookmark Alternative Fuels Data Center: Cellulosic Ethanol Production Financing on Delicious Rank Alternative Fuels Data Center: Cellulosic Ethanol Production Financing on Digg Find More places to share Alternative Fuels Data Center: Cellulosic Ethanol Production Financing on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Cellulosic Ethanol Production Financing The Kansas Development Finance Authority may issue revenue bonds to cover

94

Optical absorption in amorphous silicon  

SciTech Connect (OSTI)

The role that disorder plays in shaping the form of the optical absorption spectrum of hydrogenated amorphous silicon is investigated. Disorder leads to a redistribution of states, which both reduces the Tauc gap and broadens the absorption tail. The observed relationship between the Tauc gap and the breadth of the absorption tail is thus explained.

O`Leary, S.K.; Zukotynski, S.; Perz, J.M.; Sidhu, L.S. [Univ. of Toronto, Ontario (Canada). Dept. of Electrical and Computer Engineering

1996-12-31T23:59:59.000Z

95

New Insights into Hydrogen Bonding and Stacking Interactions in Cellulose  

SciTech Connect (OSTI)

In this quantum chemical study, we explore hydrogen bonding (H-bonding) and stacking interactions in different crystalline cellulose allomorphs, namely cellulose I and cellulose IIII. We consider a model system representing a cellulose crystalline core, made from six cellobiose units arranged in three layers with two chains per layer. We calculate the contributions of intrasheet and intersheet interactions to the structure and stability in both cellulose I and cellulose IIII crystalline cores. Reference structures for this study were generated from molecular dynamics simulations of water-solvated cellulose I and IIII fibrils. A systematic analysis of various conformations describing different mutual orientations of cellobiose units is performed using the hybrid density functional theory (DFT) with the M06-2X with 6-31+G (d, p) basis sets. We dissect the nature of the forces that stabilize the cellulose I and cellulose IIII crystalline cores and quantify the relative strength of H-bonding and stacking interactions. Our calculations demonstrate that individual H-bonding interactions are stronger in cellulose I than in cellulose IIII. We also observe a significant contribution from cooperative stacking interactions to the stabilization of cellulose I . In addition, the theory of atoms-in-molecules (AIM) has been employed to characterize and quantify these intermolecular interactions. AIM analyses highlight the role of nonconventional CH O H-bonding in the cellulose assemblies. Finally, we calculate molecular electrostatic potential maps for the cellulose allomorphs that capture the differences in chemical reactivity of the systems considered in our study.

Langan, Paul [ORNL

2011-01-01T23:59:59.000Z

96

Electrically-Assisted Diesel Particulate Filter Regeneration...  

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

Evaluation pm041lance2011p.pdf More Documents & Publications Electrically-Assisted Diesel Particulate Filter Regeneration Substrate Studies of an Electrically-Assisted Diesel...

97

Electrically-Assisted Diesel Particulate Filter Regeneration  

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

partner for this project, has developed a DPF technology that utilizes electrical power to heat the DPF for regeneration, thereby greatly reducing the "fuel penalty". D P F...

98

Bioactive Glass Scaffolds for Bone Regeneration  

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

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

99

Regenerator Location Problem in Flexible Optical Networks  

E-Print Network [OSTI]

Nov 22, 2014 ... Abstract: In this study we introduce the regenerator location problem in flexible optical networks (RLP-FON). With a given traffic demand, ...

BARIS YILDIZ

2014-11-22T23:59:59.000Z

100

MICROÖRGANISMS CONCERNED IN THE DECOMPOSITION OF CELLULOSES IN THE SOIL  

Science Journals Connector (OSTI)

...1886 ttber garung der Cellulose mit Bildung von Methan und Kohlensiiure. Ztshr. physiol. Chem., 10...OMELIANSKI, W. 1904(a) Ueber die Trennung der Wasserstoff- und Methan- garung der Cellulose. Centrbl. Bakt., 2 Abt...

Selman A. Waksman; C. E. Skinner

1926-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Cellulosic Biofuels: Expert Views on Prospects for Advancement: Supplementary Material  

E-Print Network [OSTI]

Cellulosic Biofuels: Expert Views on Prospects for Advancement: Supplementary Material Erin Baker Keywords: Biofuels; Technology R&D; Uncertainty; Environmental policy 2 #12;1 Introduction This paper contains supplementary material for "Cellulosic Biofuels: Expert Views on Prospects for Advancement

Massachusetts at Amherst, University of

102

Electric Field Alignment of Cellulose Based-Polymer Nanocomposites  

E-Print Network [OSTI]

Cellulose whiskers (CWs) obtained from naturally occuring cellulose are nano-inclusions which show a lot of promise as mechanical reinforcements in polymers. Typically, a relatively high content is added to realize improvement in effective...

Kalidindi, Sanjay Varma

2012-07-16T23:59:59.000Z

103

Stability and the Amorphous State  

E-Print Network [OSTI]

. Brabender Plasticorder twin screw lab scale extruder 18 Indomethacin / PVP extrudate Tolbutamide / PVP (1:1) 19 NCE Select excipient Thermally stable? Dissolution rate Recrystallisation Small-scale fusion Yes One Tg? Yes Scale up preparation Yes.... stab. of beaker melts and extrudates 29 APV twin screw lab extruder NCE Select excipient Thermally stable? Dissolution rate Recrystallisation Small-scale fusion Yes One Tg? Yes Scale up preparation Yes Stability studies Yes Amorphous? Small...

Rades, T.

2006-10-26T23:59:59.000Z

104

New Model for Amorphous Magnetism  

Science Journals Connector (OSTI)

We propose a new model for magnetism in an amorphous material. The model is particularly appropriate for rare-earth compounds such as TbF2. It is a Heisenberg model in which each ionic spin is subjected to a local anisotropy field of random orientation. We discuss the magnetic properties of two simple ionic configurations, and show that the model is in qualitative agreement with the experimental data.

R. Harris; M. Plischke; M. J. Zuckermann

1973-07-16T23:59:59.000Z

105

Simulation studies of the insolubility of cellulose  

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

Simulation Simulation studies of the insolubility of cellulose Malin Bergenstråhle a , Jakob Wohlert a, , Michael E. Himmel b , John W. Brady a, * a Department of Food Science, Cornell University, Ithaca, NY 14853, United States b National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO 80401-3393, United States a r t i c l e i n f o Article history: Received 4 February 2010 Received in revised form 5 June 2010 Accepted 25 June 2010 Available online 6 July 2010 Keywords: Cellulase Cellobiohydrolase I Cellulose Computer modeling Molecular dynamics a b s t r a c t Molecular dynamics simulations have been used to calculate the potentials of mean force for separating short cellooligomers in aqueous solution as a means of estimating the contributions of hydrophobic stacking and hydrogen bonding to the insolubility of crystalline cellulose. A series of four potential of mean force (pmf) calculations

106

Why sequence cellulose degrading fungus Amanita thiersii?  

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

sequence cellulose degrading fungus Amanita thiersii? sequence cellulose degrading fungus Amanita thiersii? Amanita thiersii is a white, sticky mushroom that obtains its carbon by decomposing grasses, playing a role in the terrestrial carbon cycle. The fungus is commonly found in grasslands throughout the central United States and grows in grassy areas away from trees, often seen on lawns after the rain. By sequencing A. thiersii's genome, researchers hope increase the list of fungi that might provide enzymes that can be used to commercialize the production of cellulosic biofuel, which falls in with the U.S. Department of Energy's mission to develop clean energy, by potentially offering a more cost-effective method of breaking down lignocellulose in plant cell walls. Because the fungus is found in regions where the biomass is high in

107

BSA Treatment to Enhance Enzymatic Hydrolysis of Cellulose in Lignin  

E-Print Network [OSTI]

BSA Treatment to Enhance Enzymatic Hydrolysis of Cellulose in Lignin Containing Substrates Bin Yang cellulose and solids containing 56% cellulose and 28% lignin from dilute sulfuric acid pretreatment of corn of cellulase and particularly beta-glucosidase on lignin. Of particular note, BSA treatment of pretreated corn

California at Riverside, University of

108

Biofuel Supply Chain Infrastructure Optimizing the Evolution of Cellulosic Biofuel  

E-Print Network [OSTI]

Biofuel Supply Chain Infrastructure Optimizing the Evolution of Cellulosic Biofuel Center infrastructure. Cellulosic-based ad- vanced biofuel has a target of 21 billion gallons by 2022 and requires into a national economic model of biofuel sustainability. Cellulosic biomass relocates the demand

109

Narrow band gap amorphous silicon semiconductors  

DOE Patents [OSTI]

Disclosed is a narrow band gap amorphous silicon semiconductor comprising an alloy of amorphous silicon and a band gap narrowing element selected from the group consisting of Sn, Ge, and Pb, with an electron donor dopant selected from the group consisting of P, As, Sb, Bi and N. The process for producing the narrow band gap amorphous silicon semiconductor comprises the steps of forming an alloy comprising amorphous silicon and at least one of the aforesaid band gap narrowing elements in amount sufficient to narrow the band gap of the silicon semiconductor alloy below that of amorphous silicon, and also utilizing sufficient amounts of the aforesaid electron donor dopant to maintain the amorphous silicon alloy as an n-type semiconductor.

Madan, A.; Mahan, A.H.

1985-01-10T23:59:59.000Z

110

Method for separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials  

DOE Patents [OSTI]

A method for enzymatically separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials. The cellulosic material, such as newsprint, is introduced into a first chamber containing a plastic canvas basket. This first chamber is in fluid communication, via plastic tubing, with a second chamber containing cellobiase beads in a plastic canvas basket. Cellulase is then introduced into the first chamber. A programmable pump then controls the flow rate between the two chambers. The action of cellulase and stirring in the first chamber results in the production of a slurry of newsprint pulp in the first chamber. This slurry contains non-inked fibers, inked fibers, and some cellobiose. The inked fibers and cellobiose flow from the first chamber to the second chamber, whereas the non-inked fibers remain in the first chamber because they are too large to pass through the pores of the plastic canvas basket. The resulting non-inked and inked fibers are then recovered. 6 figs.

Woodward, J.

1998-12-01T23:59:59.000Z

111

Method for separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials  

DOE Patents [OSTI]

A method for enzymatically separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials. The cellulosic material, such as newsprint, is introduced into a first chamber containing a plastic canvas basket. This first chamber is in fluid communication, via plastic tubing, with a second chamber containing cellobiase beads in a plastic canvas basket. Cellulase is then introduced into the first chamber. A programmable pump then controls the flow rate between the two chambers. The action of cellulase and stirring in the first chamber results in the production of a slurry of newsprint pulp in the first chamber. This slurry contains non-inked fibers, inked fibers, and some cellobiose. The inked fibers and cellobiose flow from the first chamber to the second chamber, whereas the non-inked fibers remain in the first chamber because they are too large to pass through the pores of the plastic canvas basket. The resulting non-inked and inked fibers are then recovered.

Woodward, Jonathan (Kingston, TN)

1998-01-01T23:59:59.000Z

112

Development of a Non Air-assisted Thermal Regenerator | Department...  

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

Development of an Active Regeneration Diesel Particulate Filter System Blowers for Air Assisted Diesel Particulate Filter Regeneration SCR Technologies for NOx Reduction...

113

Method for Regeneration of Immobilized Amine Sorbents for Use...  

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

Method for Regeneration of Immobilized Amine Sorbents for Use in CO 2 Capture Opportunity Research is currently active on the patent-pending technology "Regenerable Sorbent...

114

Reductant Chemistry during LNT Regeneration for a Lean Gasoline...  

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

Reductant Chemistry during LNT Regeneration for a Lean Gasoline Engine Reductant Chemistry during LNT Regeneration for a Lean Gasoline Engine Poster presented at the 16th...

115

Modeling the Regeneration Chemistry of Lean NOx Traps | Department...  

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

the Regeneration Chemistry of Lean NOx Traps Modeling the Regeneration Chemistry of Lean NOx Traps Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored...

116

A Revealing Look Inside Passive and Active DPF Regeneration:...  

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

A Revealing Look Inside Passive and Active DPF Regeneration: In-Situ Optical Analysis of Ash Formation and Transport A Revealing Look Inside Passive and Active DPF Regeneration:...

117

Microbial Cellulose Utilization: Fundamentals and Biotechnology  

Science Journals Connector (OSTI)

...Microbiology ARTICLE REVIEWS Microbial Cellulose...utilization in natural environments is further enhanced...and comprehensive reviews address this large...and the research literature primarily as an...process engineering literature to refer to a process...a comprehensive review of the pretreatment...

Lee R. Lynd; Paul J. Weimer; Willem H. van Zyl; Isak S. Pretorius

2002-09-01T23:59:59.000Z

118

Thermal degradation of cellulose in alkali  

SciTech Connect (OSTI)

Biomass in an alkaline aqueous slurry can be liquefied by heat and pressure. Understanding the mechanisms of biomass liquefaction to improve the efficiency of converting biomass to useful products, particularly chemicals and synthetic fuels is discussed. To study the chemical mechanisms of this process, pure cellulose, the main component of biomass, was liquefied. The 78 cellulose liquefaction products that were identified by gas chromatography/mass spectrometry include polyols, furans, ketones, hydrocarbons, and aromatic compounds. Polyols may be formed by hydrogenolytic cleavage. Furans an cyclic ketones may be cyclization products of dicarbonyl intermediates formed by aldol condensation of small initial degradation products such as acetone and acrolein. Several of these small carbonyl compounds were used as model compounds to test proposed mechanisms for furans and cyclic ketones and obtained products supporting five of the mechanisms. For the best case of 26 cellulose liquefaction experiments, 34% of the initial mass of the cellulose was converted to acetone-soluble oil with a heat of combustion of 14,000 Btu/lb.

Miller, R.K.; Molton, P.M.; Russell, J.A.

1980-12-01T23:59:59.000Z

119

Biochemistry of Cellulose and Related Polysaccharides  

Science Journals Connector (OSTI)

... cereal grains are important in the germination process3. Thus oat glucan is located on the surface of the kernel, and during germination, it has been suggested, it is dissolved ... cellulose arise by resynthesis of fragmented glucose molecules. Similar experiments have been extended to the xylan of the wheat plant by Altermatt and Neish10. The results suggest that the xylose ...

B. A. STONE

1958-09-13T23:59:59.000Z

120

Cellulose-Bound Magnesium Diboride Superconductivity  

E-Print Network [OSTI]

Cellulose-Bound Magnesium Diboride Superconductivity Y.L. Lin and M.O. Pekguleryuz Department Canada Abstract--Two-phase superconductor tapes were produced by blending high purity magnesium diboride junctions. I. INTRODUCTION Magnesium diboride was found to be superconducting in 2001 by Nagamatsu et al. [1

Ryan, Dominic

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Synthesis and characterization of P-doped amorphous and nanocrystallin...  

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

characterization of P-doped amorphous and nanocrystalline Si. Synthesis and characterization of P-doped amorphous and nanocrystalline Si. Abstract: P-doped amorphous Si (a-Si) was...

122

Fluorination of amorphous thin-film materials with xenon fluoride  

DOE Patents [OSTI]

A method is disclosed for producing fluorine-containing amorphous semiconductor material, preferably comprising amorphous silicon. The method includes depositing amorphous thin-film material onto a substrate while introducing xenon fluoride during the film deposition process.

Weil, R.B.

1987-05-01T23:59:59.000Z

123

Catalytic conversion of carbohydrates into 5-hydroxymethylfurfural over cellulose-derived carbonaceous catalyst in ionic liquid  

Science Journals Connector (OSTI)

Abstract Three environmental-benign and low-cost carbon-based solid acid catalysts containing –SO3H, –COOH and phenolic –OH groups were prepared and used for the conversion of glucose into 5-hydroxymethylfurfural (HMF) in ionic liquid 1-butyl-3-methylimidazolium chloride ([BMIM]Cl). The results demonstrated that cellulose-derived carbonaceous catalyst (CCC) possessed the highest catalytic activity, which resulted in 46.4% HMF yield at 160 °C for only 15 min. In addition, the reaction kinetics for the conversion of glucose into HMF over CCC was fitted with the first-order rate equation. The slightly-deactivated CCC after four successive reaction runs could be easily regenerated by a simple carbonization and sulfonation process. More gratifyingly, the combination of CCC and [BMIM]Cl were confirmed to be suitable for converting other carbohydrates such as fructose, sucrose, maltose, cellobiose, starch and cellulose into HMF. Particularly, a plausible mechanism involving hydrolysis, isomerization and dehydration for the conversion of carbohydrates into HMF was also proposed.

Lei Hu; Geng Zhao; Xing Tang; Zhen Wu; Jiaxing Xu; Lu Lin; Shijie Liu

2013-01-01T23:59:59.000Z

124

Formation of Supercooled Liquid Solutions from Nanoscale Amorphous...  

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

Supercooled Liquid Solutions from Nanoscale Amorphous Solid Films of Methanol and Ethanol. Formation of Supercooled Liquid Solutions from Nanoscale Amorphous Solid Films of...

125

Atomistic modeling of amorphous silicon carbide using a bond...  

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

modeling of amorphous silicon carbide using a bond-order potential. Atomistic modeling of amorphous silicon carbide using a bond-order potential. Abstract: Molecular dynamics...

126

Irradiation-induced defect clustering and amorphization in silicon...  

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

Irradiation-induced defect clustering and amorphization in silicon carbide. Irradiation-induced defect clustering and amorphization in silicon carbide. Abstract: Previous computer...

127

Electron-Stimulated Production of Molecular Oxygen in Amorphous...  

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

Water. Electron-Stimulated Production of Molecular Oxygen in Amorphous Solid Water. Abstract: The low-energy, electron-stimulated production of molecular oxygen from pure amorphous...

128

Infrared Spectroscopy and Optical Constants of Porous Amorphous...  

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

Spectroscopy and Optical Constants of Porous Amorphous Solid Water. Infrared Spectroscopy and Optical Constants of Porous Amorphous Solid Water. Abstract: Reflection-absorption...

129

Structure, Morphology, and Optical Properties of Amorphous and...  

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

Morphology, and Optical Properties of Amorphous and Nanocrystalline Gallium Oxide Thin Films. Structure, Morphology, and Optical Properties of Amorphous and Nanocrystalline Gallium...

130

PILOT PLANT STUDIES ON THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL. REPORT OF WORK PROGRESS, JUNE 30, 1977  

E-Print Network [OSTI]

Bioconversion of Cellulose to Ethanol" to the Professionaland produce ethanol directly from cellulose. The methodof Cellulose by Coupling with Ethanol Fermentation." ,.l

Wilke, C.R.

2011-01-01T23:59:59.000Z

131

Simultaneous cell growth and ethanol production from cellulose by an engineered yeast consortium displaying a functional mini-cellulosome  

E-Print Network [OSTI]

cell growth and ethanol production from cellulose by anKeywords: cellulose, cellulosome, ethanol, yeast,growth and ethanol production from cellulose. However,

Goyal, Garima; Tsai, Shen-Long; Madan, Bhawna; DaSilva, Nancy A; Chen, Wilfred

2011-01-01T23:59:59.000Z

132

Cellulosic Biofuels: Importance, Recalcitrance, and Pretreatment  

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

Cellulosic Cellulosic Biofuels: Importance, Recalcitrance, and Pretreatment Lee Lynd 1,2 and Mark Laser 1 1 Thayer School of Engineering, Dartmouth College, Hanover, USA 2 BioEnergy Science Center, Oak Ridge, USA 2.1 Our Place in History The two most profound societal transformations in history have been spawned by radical shifts in human- kind's use of natural resources. The agricultural revolution, which spanned about two millennia beginning around 4000 BC, saw hunter-gatherer societies subsisting on wild plants and animals being largely dis- placed by those cultivating the land to produce crops and domesticated livestock. The industrial revolution followed, beginning around 1700 and lasting roughly two hundred years, during which time preindustrial agricultural societies gave way to those harnessing precious metals and fossil energy to develop sophisti- cated economies centered

133

On-line regeneration of hydrodesulfurization catalyst  

DOE Patents [OSTI]

A hydrotreating catalyst is regenerated as it concurrently hydrotreats a hydrocarbon fuel by introducing a low concentration of oxygen into the catalyst bed either continuously or periodically. At low oxygen concentrations the carbon deposits on the catalyst are burned off without harming the catalyst and without significantly affecting the hydrotreating process. In a preferred embodiment the hydrotreating process is hydrodesulfurization, and regenerating is done periodically with oxygen concentrations between 0.1 and 0.5 volume percent.

Preston, Jr., John L. (Hebron, CT)

1980-01-01T23:59:59.000Z

134

Regenerable activated bauxite adsorbent alkali monitor probe  

DOE Patents [OSTI]

A regenerable activated bauxite adsorber alkali monitor probe for field applications to provide reliable measurement of alkali-vapor concentration in combustion gas with special emphasis on pressurized fluidized-bed combustion (PFBC) off-gas. More particularly, the invention relates to the development of a easily regenerable bauxite adsorbent for use in a method to accurately determine the alkali-vapor content of PFBC exhaust gases. 6 figs.

Lee, S.H.D.

1992-12-22T23:59:59.000Z

135

Review: Enzymatic Hydrolysis of Cellulosic Biomass  

SciTech Connect (OSTI)

Biological conversion of cellulosic biomass to fuels and chemicals offers the high yields to products vital to economic success and the potential for very low costs. Enzymatic hydrolysis that converts lignocellulosic biomass to fermentable sugars may be the most complex step in this process due to substrate-related and enzyme-related effects and their interactions. Although enzymatic hydrolysis offers the potential for higher yields, higher selectivity, lower energy costs, and milder operating conditions than chemical processes, the mechanism of enzymatic hydrolysis and the relationship between the substrate structure and function of various glycosyl hydrolase components are not well understood. Consequently, limited success has been realized in maximizing sugar yields at very low cost. This review highlights literature on the impact of key substrate and enzyme features that influence performance to better understand fundamental strategies to advance enzymatic hydrolysis of cellulosic biomass for biological conversion to fuels and chemicals. Topics are summarized from a practical point of view including characteristics of cellulose (e.g., crystallinity, degree of polymerization, and accessible surface area) and soluble and insoluble biomass components (e.g., oligomeric xylan, lignin, etc.) released in pretreatment, and their effects on the effectiveness of enzymatic hydrolysis. We further discuss the diversity, stability, and activity of individual enzymes and their synergistic effects in deconstructing complex lignocellulosic biomass. Advanced technologies to discover and characterize novel enzymes and to improve enzyme characteristics by mutagenesis, post-translational modification, and over-expression of selected enzymes and modifications in lignocellulosic biomass are also discussed.

Yang, Bin; Dai, Ziyu; Ding, Shi-You; Wyman, Charles E.

2011-07-16T23:59:59.000Z

136

Belize-OAS Cellulosic Ethanol Market Assessment | Open Energy Information  

Open Energy Info (EERE)

Belize-OAS Cellulosic Ethanol Market Assessment Belize-OAS Cellulosic Ethanol Market Assessment Jump to: navigation, search Name Belize-OAS Cellulosic Ethanol Market Assessment Agency/Company /Organization Organization of American States (OAS) Sector Energy Focus Area Renewable Energy, Biomass Topics Market analysis, Background analysis Website http://www.sepa-americas.net/p Program Start 2008 Program End 2009 Country Belize UN Region Latin America and the Caribbean References OAS Project Database[1] "The main objective of the Project is to assess the market potential for cellulosic ethanol in Belize through sustainable implementation of cellulosic ethanol technology utilizing agricultural and forest residues as primary biomass feedstock. A supplementary objective will be to help prepare for potential future cellulosic ethanol projects in other Caribbean

137

Effects of periodic matter in kaon regeneration  

E-Print Network [OSTI]

We study the effects of periodic matter in kaon regeneration, motivated by the possibility of parametric resonance in neutrino oscillations. The large imaginary parts of the forward kaon-nucleon scattering amplitudes and the decay width difference $\\Delta\\Gamma$ prevent a sizable enhancement of the $K_L\\to K_S$ transition probability. However, some interesting effects can be produced using regenerators made of alternating layers of two different materials. Despite the fact that the regenerator has a fixed length one can obtain different values for the probability distribution of the $K_L$ decay into a final state. Using a two-arm regenerator set up it is possible to measure the imaginary parts of the $K^0(\\bar{K}^0)$-nucleon scattering amplitudes in the correlated decays of the $\\phi$-resonance. Combining the data of the single-arm regenerator experiments with direct and reverse orders of the matter layers in the regenerator one can independently measure the CP violating parameter $\\delta$.

Evgeny Akhmedov; Augusto Barroso; Petteri Keränen

2001-07-23T23:59:59.000Z

138

Advancing Cellulosic Ethanol for Large Scale Sustainable Transportation  

E-Print Network [OSTI]

Advancing Cellulosic Ethanol for Large Scale SustainableHydrogen Batteries Nuclear By Lee Lynd, Dartmouth Ethanol •Ethanol, ethyl alcohol, fermentation ethanol, or just “

Wyman, C

2007-01-01T23:59:59.000Z

139

Studying Cellulose Fiber Structure by SEM, XRD, NMR and Acid...  

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

Studying Cellulose Fiber Structure by SEM, XRD, NMR and Acid Hydrolysis. Abstract: Cotton linters were partially hydrolyzed in dilute acid and the morphology of remaining...

140

The Journey to Commercializing Cellulosic Biofuels in the United States  

Office of Energy Efficiency and Renewable Energy (EERE)

In Hugoton, Kansas, a state-of-the-art biorefinery has begun producing 25 million gallons per year of cellulosic ethanol.

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Advancing Cellulosic Ethanol for Large Scale Sustainable Transportation  

E-Print Network [OSTI]

43% Hemicellulose 27% Lignin 17% Other 13% Agricultural45% Hemicellulose 25% Lignin 22% Extractives 5% Ash3% Woody Crops Ash 15% Lignin 10% Cellulose Hemicellulose 9%

Wyman, C

2007-01-01T23:59:59.000Z

142

Structures of cellulose acetate membranes for reverse osmosis  

Science Journals Connector (OSTI)

Studies under the scanning electron microscope have shown that the cellulose acetate membranes used for reverse osmosis are high-molecular-weight condensation structures of...

I. N. Vlodavets; G. Z. Nefedova…

1977-01-01T23:59:59.000Z

143

The Current State of Technology for Cellulosic Ethanol | Department...  

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

The Current State of Technology for Cellulosic Ethanol At the February 12, 2009 joint Web conference of DOE's Biomass and Clean Cities programs, Andy Aden (National Renewable...

144

Less is more: Novel cellulose structure requires fewer enzymes...  

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

Los Alamos National Laboratory (LANL) and the Great Lakes Bioenergy Research Center (GLBRC). Scientists are investigating the unique properties of crystalline cellulose...

145

Phase Transitions in Cellulose Microfibril Dispersions by High-Energy Mechanical Deagglomeration  

Science Journals Connector (OSTI)

Phase Transitions in Cellulose Microfibril Dispersions by High-Energy Mechanical Deagglomeration ... This is achieved by applying high-energy mechanical deagglomeration to bacterial cellulose (BC) networks in the presence of sodium carboxymethyl cellulose (CMC). ...

Sandra J. Veen; Anke Kuijk; Peter Versluis; Henk Husken; Krassimir P. Velikov

2014-10-14T23:59:59.000Z

146

Corrosion resistant amorphous metals and methods of forming corrosion resistant amorphous metals  

DOE Patents [OSTI]

A system for coating a surface comprises providing a source of amorphous metal, providing ceramic particles, and applying the amorphous metal and the ceramic particles to the surface by a spray. The coating comprises a composite material made of amorphous metal that contains one or more of the following elements in the specified range of composition: yttrium (.gtoreq.1 atomic %), chromium (14 to 18 atomic %), molybdenum (.gtoreq.7 atomic %), tungsten (.gtoreq.1 atomic %), boron (.ltoreq.5 atomic %), or carbon (.gtoreq.4 atomic %).

Farmer, Joseph C.; Wong, Frank M.G.; Haslam, Jeffery J.; Yang, Nancy; Lavernia, Enrique J.; Blue, Craig A.; Graeve, Olivia A.; Bayles, Robert; Perepezko, John H.; Kaufman, Larry; Schoenung, Julie; Ajdelsztajn, Leo

2014-07-15T23:59:59.000Z

147

Direct Observation of Amorphous to Amorphous Apparently First-Order Phase Transition in Fused Quartz  

Science Journals Connector (OSTI)

We report for the first time the direct observation of an apparently first-order phase transition in amorphous silica from the low density amorphous phase to the high density amorphous phase with a discontinuous volume change of about 20% from the dilatometric measurements using the piston cylinder apparatus at 36 kbar and 680 °C. Our Raman spectroscopy measurements on the retrieved samples quenched from high pressure and high temperature experiments do not show any Raman peaks indicating a large modification in the intermediate range order in the structure of amorphous silica.

G. D. Mukherjee; S. N. Vaidya; V. Sugandhi

2001-10-16T23:59:59.000Z

148

PILOT PLANT STUDIES OF THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL. REPORT OF WORK PROGRESS, JAN. 31, 1977  

E-Print Network [OSTI]

Bioconversion Of Cellulose And Production Of Ethanol CharlesBIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL under

Wilke, C.R.

2010-01-01T23:59:59.000Z

149

Radial distribution functions of amorphous silicon  

Science Journals Connector (OSTI)

Substantial changes in the radial distribution function of amorphous Si films have been observed in neutron-diffraction studies. The spectra indicate changes in short-range order associated with an ?11% modification in the bond-angle distribution width. The results allow the first direct comparison of structural and vibrational Raman probes of variations in local order in thin-film amorphous solids. Good agreement is obtained between the measured bond-angle variation and that based on Raman estimates.

J. Fortner and J. S. Lannin

1989-03-15T23:59:59.000Z

150

Department of Energy Delivers on R&D Targets around Cellulosic...  

Office of Environmental Management (EM)

advances required to produce cellulosic ethanol that is cost competitive with petroleum. Cellulosic ethanol is fuel produced from the inedible, organic material abundant in...

151

PROCESS DEVELOPMENT STUDIES ON THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL  

E-Print Network [OSTI]

EthanolOf Cellulose And Production Of Ethanol I Charles R. WilkeCELLULOSE AND PRODUCTION OF ETHANOL under auspices of U.S.

Wilke, C.R.

2011-01-01T23:59:59.000Z

152

Synthesis of ?-Cyclodextrin Functionalized Cellulose Nanocrystals and Their Interactions with Amphiphilic Compounds.  

E-Print Network [OSTI]

??Cellulose nanocrystal (CNC) obtained from acid hydrolysis of cellulose fibres has attracted enormous interests due to its large surface area, high negative surface charge density,… (more)

Zhang, Feifei

2014-01-01T23:59:59.000Z

153

Coarse-grained model for the interconversion between different crystalline cellulose allomorphs  

SciTech Connect (OSTI)

We present the results of Langevin dynamics simulations on a coarse grained model for crystalline cellulose. In particular, we analyze two different cellulose crystalline forms: cellulose I (the natural form of cellulose) and cellulose IIII (obtained after cellulose I is treated with anhydrous liquid ammonia). Cellulose IIII has been the focus of wide interest in the field of cellulosic biofuels as it can be efficiently hydrolyzed to glucose (its enzymatic degradation rates are up to 5 fold higher than those of cellulose I ). In turn, glucose can eventually be fermented into fuels. The coarse-grained model presented in this study is based on a simplified geometry and on an effective potential mimicking the changes in both intracrystalline hydrogen bonds and stacking interactions during the transition from cellulose I to cellulose IIII. The model accurately reproduces both structural and thermomechanical properties of cellulose I and IIII. The work presented herein describes the structural transition from cellulose I to cellulose IIII as driven by the change in the equilibrium state of two degrees of freedom in the cellulose chains. The structural transition from cellulose I to cellulose IIII is essentially reduced to a search for optimal spatial arrangement of the cellulose chains.

Langan, Paul [ORNL

2012-01-01T23:59:59.000Z

154

UTILIZATION OF IMMOBILIZED B-GLUCOSIDASE IN THE ENZYMATIC HYDROLYSIS OF CELLULOSE.  

E-Print Network [OSTI]

enzymatic conversion of cellulose to ethanol. Reprinted frombetween the cellulose hydrolysis and ethanol fer- mentationcellulose to glucose in order to ferment the glucose to ethanol

Isaacs, S.H.

2011-01-01T23:59:59.000Z

155

Carbohydrate Derived-Pseudo-Lignin Can Retard Cellulose Biological Conversion  

E-Print Network [OSTI]

ARTICLE Carbohydrate Derived-Pseudo-Lignin Can Retard Cellulose Biological Conversion Rajeev Kumar degradation products, collectively termed as chars and/or pseudo-lignin. In order to understand the factors derived pseudo-lignin on cellulose conversion at the moderate to low enzyme loadings necessary

California at Riverside, University of

156

Hydration Control of the Mechanical and Dynamical Properties of Cellulose  

Science Journals Connector (OSTI)

Loukas Petridis *†, Hugh M. O’Neill ‡§, Mariah Johnsen †?, Bingxin Fan ?, Roland Schulz †#, Eugene Mamontov ?, Janna Maranas ?, Paul Langan ‡§?, and Jeremy C. Smith †# ... sucrofermentans (ATCC 700178) in minimal media and purification of cellulose has been described previously. ... In vivo generated deuterated bacterial cellulose, cultivated from 100% deuterated glycerol in D2O medium, was analyzed for deuterium incorporation by ionic liq. ...

Loukas Petridis; Hugh M. O’Neill; Mariah Johnsen; Bingxin Fan; Roland Schulz; Eugene Mamontov; Janna Maranas; Paul Langan; Jeremy C. Smith

2014-10-17T23:59:59.000Z

157

Single Molecule Study of Cellulase Hydrolysis of Crystalline Cellulose  

SciTech Connect (OSTI)

This report seeks to elucidate the role of cellobiohydrolase-I (CBH I) in the hydrolysis of crystalline cellulose. A single-molecule approach uses various imaging techniques to investigate the surface structure of crystalline cellulose and changes made in the structure by CBH I.

Liu, Y.-S.; Luo, Y.; Baker, J. O.; Zeng, Y.; Himmel, M. E.; Smith, S.; Ding, S.-Y.

2009-12-01T23:59:59.000Z

158

Method for Regeneration of Immobilized Amine Sorbents  

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

Regeneration of Immobilized Amine Sorbents Regeneration of Immobilized Amine Sorbents for Use in CO 2 Capture Opportunity Research is currently active on the patent-pending technology "Regenerable Sorbent Technique for Capturing CO 2 Using Immobilized Amine Sorbents." The technology is available for licensing and/or further collaborative research from the U.S. Department of Energy's National Energy Technology Laboratory. Overview Carbon sequestration entails a multi-step process in which anthropogenic CO 2 emissions are captured from CO 2 -laden process gas streams and perma- nently stored. Carbon capture is a critical step in the process and accounts for a considerable portion of the overall cost. Newly developed, high-capacity amine-based sorbents offer many advantages over existing technology

159

Secretary Bodman Touts Importance of Cellulosic Ethanol at Georgia  

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

Touts Importance of Cellulosic Ethanol at Georgia Touts Importance of Cellulosic Ethanol at Georgia Biorefinery Groundbreaking Secretary Bodman Touts Importance of Cellulosic Ethanol at Georgia Biorefinery Groundbreaking October 6, 2007 - 4:21pm Addthis SOPERTON, GA - U.S. Secretary of Energy Samuel W. Bodman today attended a groundbreaking ceremony for Range Fuels' biorefinery - one of the nation's first commercial-scale cellulosic ethanol biorefineries - and made the following statement. "Together, the Department of Energy and private sector pioneers, such as Range Fuels, are blending science and technology to advance the President's goal of reducing our dependence on foreign oil," U.S. Secretary of Energy Samuel W. Bodman said. "The production of cost-competitive cellulosic ethanol is a significant part of America's energy future. This new

160

DuPont Danisco Cellulosic Ethanol | Open Energy Information  

Open Energy Info (EERE)

Danisco Cellulosic Ethanol Danisco Cellulosic Ethanol Jump to: navigation, search Name DuPont Danisco Cellulosic Ethanol Place Itasca, Illinois Zip 60143 Product DuPont Danisco Cellulosic Ethanol is a joint venture to develop technologies for cellulosic ethanol. Coordinates 32.1666°, -97.154369° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.1666,"lon":-97.154369,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

EA-1704: Construction and Operation of a Proposed Cellulosic Biorefinery,  

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

704: Construction and Operation of a Proposed Cellulosic 704: Construction and Operation of a Proposed Cellulosic Biorefinery, BlueFire Fulton Renewable Energy, LLC, Fulton, Mississippi EA-1704: Construction and Operation of a Proposed Cellulosic Biorefinery, BlueFire Fulton Renewable Energy, LLC, Fulton, Mississippi SUMMARY ThIs EA evaluates the potential environmental impacts of a propsal, (Fulton Project) that consists of the design, construction and operation of a biorefinery facility producing ethanol and other co-products from cellulosic materials utilizing a patented concentrated acid hydrolysis process. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD June 4, 2010 EA-1704: Finding of No Significant Impact Construction and Operation of a Proposed Cellulosic Biorefinery, BlueFire

162

Physical properties of agave cellulose graft polymethyl methacrylate  

SciTech Connect (OSTI)

The grafting polymerization of methyl methacrylate and Agave cellulose was prepared and their structural analysis and morphology were investigated. The grafting reaction was carried out in an aqueous medium using ceric ammonium nitrate as an initiator. The structural analysis of the graft copolymers was carried out by Fourier transform infrared and X-ray diffraction. The graft copolymers were also characterized by field emission scanning electron microscopy (FESEM). An additional peak at 1732 cm{sup ?1} which was attributed to the C=O of ester stretching vibration of poly(methyl methacrylate), appeared in the spectrum of grafted Agave cellulose. A slight decrease of crystallinity index upon grafting was found from 0.74 to 0.68 for cellulose and grafted Agave cellulose, respectively. Another evidence of grafting showed in the FESEM observation, where the surface of the grafted cellulose was found to be roughed than the raw one.

Rosli, Noor Afizah; Ahmad, Ishak; Abdullah, Ibrahim; Anuar, Farah Hannan [Polymer Research Centre (PORCE), School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi Selangor (Malaysia)

2013-11-27T23:59:59.000Z

163

Kinetic and Performance Studies of the Regeneration Phase of...  

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

Studies of the Regeneration Phase of Model PtRhBa NOx Traps for Design and Optimization Kinetic and Performance Studies of the Regeneration Phase of Model PtRhBa NOx...

164

RESEARCH ARTICLE Climate and interrelated tree regeneration drivers in mixed  

E-Print Network [OSTI]

RESEARCH ARTICLE Climate and interrelated tree regeneration drivers in mixed temperate regeneration layer composition is driven by numerous interrelated and covarying biotic and abiotic Electronic and strongly affects understory processes and properties including nutrient availabil- ity, seedbed conditions

Minnesota, University of

165

Surface-Configuration Change of CF4 Plasma Treated Cellulose and Cellulose Acetate by Interaction of Water with Surfaces  

Science Journals Connector (OSTI)

Surface-configuration change due to the change of contacting medium from (dry) air to liquid water and also from (dry) air to a high relative humidity air was investigated for cellulose and cellulose acetate. CF4 plasma treatment was used to tag the ...

Takeshi Yasuda; Tsumuko Okuno; Kaori Tsuji; Hirotsugu Yasuda

1996-03-06T23:59:59.000Z

166

An approximate thermal analysis of Stirling engine regenerators  

Science Journals Connector (OSTI)

This paper approximates the transport phenomena in a Stirling engine regenerator to aid its practical design. The...

S. H. Park; Y. -S. Lee

1993-06-01T23:59:59.000Z

167

Advanced regenerator testing in the Raytheon dual-use cryocoolerr  

SciTech Connect (OSTI)

Significant progress has been made on the Raytheon low cost space cryocooler called the Dual-Use Cryocooler (DUC). Most notably, the DUC has been integrated and tested with an advanced regenerator. The advanced regenerator is a drop-in replacement for stainless steel screens and has shown significant thermodynamic performance improvements. This paper will compare the performance of two different regenerators and explain the benefits of the advanced regenerator.

Schaefer, B. R.; Bellis, L.; Ellis, M. J.; Conrad, T. J. [Raytheon Space and Airborne Systems 2000 E. El Segundo Blvd., El Segundo, CA 90245 (United States)

2014-01-29T23:59:59.000Z

168

Amorphous silicon detectors in positron emission tomography  

SciTech Connect (OSTI)

The physics of the detection process is studied and the performances of different Positron Emission Tomography (PET) system are evaluated by theoretical calculation and/or Monte Carlo Simulation (using the EGS code) in this paper, whose table of contents can be summarized as follows: a brief introduction to amorphous silicon detectors and some useful equation is presented; a Tantalum/Amorphous Silicon PET project is studied and the efficiency of the systems is studied by Monte Carlo Simulation; two similar CsI/Amorphous Silicon PET projects are presented and their efficiency and spatial resolution are studied by Monte Carlo Simulation, light yield and time characteristics of the scintillation light are discussed for different scintillators; some experimental result on light yield measurements are presented; a Xenon/Amorphous Silicon PET is presented, the physical mechanism of scintillation in Xenon is explained, a theoretical estimation of total light yield in Xenon and the resulting efficiency is discussed altogether with some consideration of the time resolution of the system; the amorphous silicon integrated electronics is presented, total noise and time resolution are evaluated in each of our applications; the merit parameters {epsilon}{sup 2}{tau}'s are evaluated and compared with other PET systems and conclusions are drawn; and a complete reference list for Xenon scintillation light physics and its applications is presented altogether with the listing of the developed simulation programs.

Conti, M. (Istituto Nazionale di Fisica Nucleare, Pisa (Italy) Lawrence Berkeley Lab., CA (USA)); Perez-Mendez, V. (Lawrence Berkeley Lab., CA (USA))

1989-12-01T23:59:59.000Z

169

Surface plasmon resonance imaging of the enzymatic degradation of cellulose microfibrils  

E-Print Network [OSTI]

and provide useful metrics of enzyme activity that are of relevance to the cellulosic ethanol industry. Introduction The degradation of cellulose by enzymes is a key step in the production of cellulosic ethanol.1 the production of cellulosic ethanol more economically viable, however this is challenging because

Dutcher, John

170

Discovery of Cellulose as a Smart Material Jaehwan Kim* and Sungryul Yun  

E-Print Network [OSTI]

Discovery of Cellulose as a Smart Material Jaehwan Kim* and Sungryul Yun Center for EAPap Actuator in cellulose applications and technologies by reporting our discovery of cellulose as a smart material that can, however, the potential of cellulose as a smart lightweight material that can be used as a sensor

Ounaies, Zoubeida

171

Regeneration of Lost Parts in Animals  

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

Regeneration of Lost Parts in Animals Regeneration of Lost Parts in Animals Nature Bulletin No. 751 April 11, 1964 Forest Preserve District of Cook County Seymour Simon, President David H. Thompson, Senior Naturalist REGENERATION OF LOST PARTS IN ANIMALS For ages, mankind has been fascinated with the idea that lost parts of animals can be regrown. According to Greek legend, one of the twelve "labors" of Hercules was the destruction of the Hydra, a gigantic monster with nine serpents' heads. Finding that as soon as one head was cut off two new ones grew in its place, at last he burned out their roots with firebrands. All animals have the power of regeneration to a greater or lesser degree. In man and higher animals it is quite limited. We see it most often in the healing of wounds and the mending of bones. A lost fingernail can be replaced but not a lost finger. Lower animals have a much greater ability to replace parts. For instance, the little half-inch flatworm, Planaria, that lives under rocks in clean creeks can be cut into as many as 32 pieces and each fragment is able to rebuild a miniature flatworm complete with head, tail, eyes, mouth and internal organs.

172

Hardwood Tree Improvement and Regeneration Center  

E-Print Network [OSTI]

are applied to young trees at improper rates. Above normal rainfall, soil pH, and the amount of soil organicFNR-217-W Hardwood Tree Improvement and Regeneration Center North Central Research Station USDA and Management Injury in Hardwood Tree Plantations John Seifert, Department of Forestry and Natural Resources

173

Amorphous Silicon Based Neutron Detector  

SciTech Connect (OSTI)

Various large-scale neutron sources already build or to be constructed, are important for materials research and life science research. For all these neutron sources, neutron detectors are very important aspect. However, there is a lack of a high-performance and low-cost neutron beam monitor that provides time and temporal resolution. The objective of this SBIR Phase I research, collaboratively performed by Midwest Optoelectronics, LLC (MWOE), the University of Toledo (UT) and Oak Ridge National Laboratory (ORNL), is to demonstrate the feasibility for amorphous silicon based neutron beam monitors that are pixilated, reliable, durable, fully packaged, and fabricated with high yield using low-cost method. During the Phase I effort, work as been focused in the following areas: 1) Deposition of high quality, low-defect-density, low-stress a-Si films using very high frequency plasma enhanced chemical vapor deposition (VHF PECVD) at high deposition rate and with low device shunting; 2) Fabrication of Si/SiO2/metal/p/i/n/metal/n/i/p/metal/SiO2/ device for the detection of alpha particles which are daughter particles of neutrons through appropriate nuclear reactions; and 3) Testing of various devices fabricated for alpha and neutron detection; As the main results: · High quality, low-defect-density, low-stress a-Si films have been successfully deposited using VHF PECVD on various low-cost substrates; · Various single-junction and double junction detector devices have been fabricated; · The detector devices fabricated have been systematically tested and analyzed. · Some of the fabricated devices are found to successfully detect alpha particles. Further research is required to bring this Phase I work beyond the feasibility demonstration toward the final prototype devices. The success of this project will lead to a high-performance, low-cost, X-Y pixilated neutron beam monitor that could be used in all of the neutron facilities worldwide. In addition, the technologies developed here could be used to develop X-ray and neutron monitors that could be used in the future for security checks at the airports and other critical facilities. The project would lead to devices that could significantly enhance the performance of multi-billion dollar neutron source facilities in the US and bring our nation to the forefront of neutron beam sciences and technologies which have enormous impact to materials, life science and military research and applications.

Xu, Liwei

2004-12-12T23:59:59.000Z

174

Amorphous and microcrystalline silicon technology -- 1998  

SciTech Connect (OSTI)

Although this new volume from MRS is the 16th in a long-standing and successful series, the focus is no longer limited to hydrogenated amorphous silicon (a-Si:H). The distinction between short- and medium-range order, and between homogeneous and heterogeneous semiconductor materials, is indeed too difficult to maintain. Instead, the volume covers amorphous and microcrystalline silicon from materials physics to new applications. Papers from a joint session with a symposium on ``Flat-Panel Display Materials and Large-Area Processes`` are included. The volume also features special focused sessions on heterogeneous materials, color sensors and radiation imaging, and parameter extraction and device modeling. Topics include: amorphous and polycrystalline thin-film transistors; solar cells; color and X-ray sensors, novel devices, luminescence and sensitization; device modeling and parameter extraction; growth, alloys and clathrates; metastability, hydrogen, atomic and electronic structure; defects and charge transport; and heterogeneous silicon--formation, properties and devices. It includes 152 papers.

Schropp, R. [ed.] [Utrecht Univ. (Netherlands); Branz, H.M. [ed.] [National Renewable Energy Lab., Golden, CO (United States); Shimizu, Isamu [ed.] [Tokyo Inst. of Tech. (Japan); Wagner, S. [ed.] [Princeton Univ., NJ (United States); Hack, M. [ed.

1999-08-01T23:59:59.000Z

175

Ion bombardment and disorder in amorphous silicon  

SciTech Connect (OSTI)

The effect of ion bombardment during growth on the structural and optical properties of amorphous silicon are presented. Two series of films were deposited under electrically grounded and positively biased substrate conditions. The biased samples displayed lower growth rates and increased hydrogen content relative to grounded counterparts. The film structure was examined using Raman spectroscopy. The transverse optic like phonon band position was used as a parameter to characterize network order. Biased samples displayed an increased order of the amorphous network relative to grounded samples. Furthermore, biased samples exhibited a larger optical gap. These results are correlated and attributed to reduced ion bombardment effects.

Sidhu, L.S.; Gaspari, F.; Zukotynski, S.

1997-07-01T23:59:59.000Z

176

Cooling of hot electrons in amorphous silicon  

SciTech Connect (OSTI)

Measurements of the cooling rate of hot carriers in amorphous silicon are made with a two-pump, one-probe technique. The experiment is simulated with a rate-equation model describing the energy transfer between a population of hot carriers and the lattice. An energy transfer rate proportional to the temperature difference is found to be consistent with the experimental data while an energy transfer independent of the temperature difference is not. This contrasts with the situation in crystalline silicon. The measured cooling rates are sufficient to explain the difficulty in observing avalanche effects in amorphous silicon.

Vanderhaghen, R.; Hulin, D.; Cuzeau, S.; White, J.O.

1997-07-01T23:59:59.000Z

177

Direct Evidence of Lithium-Induced Atomic Ordering in Amorphous...  

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

Evidence of Lithium-Induced Atomic Ordering in Amorphous TiO2 Nanotubes . Direct Evidence of Lithium-Induced Atomic Ordering in Amorphous TiO2 Nanotubes . Abstract: In this paper,...

178

Muon States in Polycrystalline and Amorphous Silicon [and Discussion  

Science Journals Connector (OSTI)

15 February 1995 research-article Muon States in Polycrystalline and Amorphous Silicon [and Discussion] E. A. Davis A. Singh S. F. J. Cox A. M. Stoneham M. Symons Muons implanted into polycrystalline and amorphous silicon have been...

1995-01-01T23:59:59.000Z

179

Applications in the Nuclear Industry for Thermal Spray Amorphous Metal and Ceramic Coatings  

E-Print Network [OSTI]

SAW Amorphous metal and ceramic thermal spray coatings havefor Thermal Spray Amorphous Metal and Ceramic Coatings J.

Blink, J.; Farmer, J.; Choi, J.; Saw, C.

2009-01-01T23:59:59.000Z

180

NREL Proves Cellulosic Ethanol Can Be Cost Competitive (Fact Sheet)  

SciTech Connect (OSTI)

Ethanol from non-food sources - known as "cellulosic ethanol" - is a near-perfect transportation fuel: it is clean, domestic, abundant, and renewable, and it can potentially replace 30% of the petroleum consumed in the United States, but its relatively high cost has limited its market. That changed in 2012, when the National Renewable Energy Laboratory (NREL) demonstrated the technical advances needed to produce cellulosic ethanol at a minimum ethanol selling price of $2.15/gallon (in 2007 dollars). Through a multi-year research project involving private industry, NREL has proven that cellulosic ethanol can be cost competitive with other transportation fuels.

Not Available

2013-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Author Proof A ARTICLE Cellulose Hydrolysis  

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

II: II: Numerical Results and Analysis Wen Zhou, 1,2 Zhiqian Hao, 3 Ying Xu, 1,2 Heinz-Bernd Schu ¨ ttler 3 1 Department of Biochemistry and Molecular Biology, Institute of Bioinformatics, University of Georgia, Athens, Georgia; telephone: 706-542-9779; fax: 706-542-9751; e-mail: xyn@bmb.uga.edu 2 BioEnergy Science Center (BESC), Oak Ridge, Tennessee 3 Department of Physics and Astronomy, University of Georgia, Athens, Georgia; telephone: 706-542-3886; fax: 706-542-2492; e-mail: hbs@physast.uga.edu Received 16 December 2008; revision received 13 March 2009; accepted 27 April 2009 Published online 12 May 2009 in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/bit.22388 ABSTRACT: Numerical simulation results are presented for a cellulose hydrolysis model which incorporates both the enzymatic glucan chain fragmentation kinetics and the hydrolytic

182

Author Proof A ARTICLE Cellulose Hydrolysis  

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

I: I: A General Modeling Formalism Wen Zhou, 1,2 Heinz-Bernd Schu ¨ ttler, 3 Zhiqian Hao, 3 Ying Xu 1,2 1 Department of Biochemistry and Molecular Biology, Institute of Bioinformatics, University of Georgia, Athens, Georgia; telephone: 706-542-9779; fax: 706-542-9751; e-mail: xyn@bmb.uga.edu 2 BioEnergy Science Center (BESC), Oak Ridge, Tennassee 3 Department of Physics and Astronomy, University of Georgia, Athens, Georgia; telephone: 706-542-3886; fax: 706-542-9751; e-mail: hbs@physast.uga.edu Received 16 December 2008; revision received 13 March 2009; accepted 27 April 2009 Published online 8 May 2009 in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/bit.22389 ABSTRACT: We develop a general framework for a realistic rate equation modeling of cellulose hydrolysis using non- complexed cellulase. Our proposed formalism, for the first time, takes

183

Carbohydrate derivedpseudolignin can retard cellulose biological conversion  

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

Carbohydrate Carbohydrate Derived-Pseudo-Lignin Can Retard Cellulose Biological Conversion Rajeev Kumar, 1,2,3 Fan Hu, 3,4 Poulomi Sannigrahi, 3,4 Seokwon Jung, 3,4 Arthur J. Ragauskas, 3,4 Charles E. Wyman 1,2,3 1 Center for Environmental Research and Technology, Bourns College of Engineering, 1084 Columbia Avenue, Riverside, California 92507; telephone: 951-781-5668; fax: 951-781-5790; e-mail: rajeev.dartmouth@gmail.com 2 Department of Chemical and Environmental Engineering, Bourns College of Engineering, 446 Winston Chung Hall, 900 University Avenue, Riverside, California 92507 3 BioEnergy Science Center (BESC), Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6422 4 School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia ABSTRACT: Dilute acid as well as water only (hydrother- mal) pretreatments often lead to a significant

184

Inhomogeneity of fluid flow in Stirling engine regenerators  

SciTech Connect (OSTI)

The literature relating to inhomogeneity of flow regenerators is briefly reviewed. It is noted that, in contrast to other applications of regenerators, relatively little attention has been paid to the consequences of flow inhomogeneity for thermal regeneration in Stirling cycle machines. The construction of regenerator capsules for a large stationary Stirling engine is described. A test rig is developed to measure the gas velocity profile across the face of the packed regenerator capsules under steady flow conditions. Measured flow profiles for a number of different matrix materials and construction techniques are presented, and it is noted that stacked-mesh regenerator matrices tend to display marked inhomogeneities of flow. The consequences of flow inhomogeneity for flow friction and regenerator effectiveness are analyzed theoretically, and approximate formulae deduced. One method for reducing flow inhomogeneity in stacked-screen matrice

Jones, J.D. (School of Engineering Science, Simon Fraser Univ. Burnaby, British Columbia (CA))

1989-10-01T23:59:59.000Z

185

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

186

Florida Project Produces Nation's First Cellulosic Ethanol at  

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

Florida Project Produces Nation's First Cellulosic Ethanol at Florida Project Produces Nation's First Cellulosic Ethanol at Commercial-Scale Florida Project Produces Nation's First Cellulosic Ethanol at Commercial-Scale July 31, 2013 - 1:37pm Addthis News Media Contact (202) 586-4940 WASHINGTON - The Energy Department today recognized the nation's first commercial-scale cellulosic ethanol production at INEOS Bio's Indian River BioEnergy Center in Vero Beach, Florida. Developed through a joint venture between INEOS Bio and New Planet Energy, the project uses a unique hybrid of gasification and fermentation technology - originally developed with Energy Department support starting in the 1990's - to convert wood scraps, grass clippings and other waste materials into transportation fuels as well as energy for heat and power.

187

Florida Project Produces Nation's First Cellulosic Ethanol at  

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

Florida Project Produces Nation's First Cellulosic Ethanol at Florida Project Produces Nation's First Cellulosic Ethanol at Commercial-Scale Florida Project Produces Nation's First Cellulosic Ethanol at Commercial-Scale July 31, 2013 - 1:37pm Addthis News Media Contact (202) 586-4940 WASHINGTON - The Energy Department today recognized the nation's first commercial-scale cellulosic ethanol production at INEOS Bio's Indian River BioEnergy Center in Vero Beach, Florida. Developed through a joint venture between INEOS Bio and New Planet Energy, the project uses a unique hybrid of gasification and fermentation technology - originally developed with Energy Department support starting in the 1990's - to convert wood scraps, grass clippings and other waste materials into transportation fuels as well as energy for heat and power.

188

Modifying cellulose fibers by adsorption/precipitation of xylan  

Science Journals Connector (OSTI)

Xylan was precipitated on bleached and unbleached softwood ... more detailed information of the distribution of adsorbed xylan on cellulosic surfaces. The adsorption step was carried out at ... the beating degree...

Albrecht Miletzky; Manuel Punz; Armin Zankel; Sandra Schlader…

2014-10-01T23:59:59.000Z

189

Secretary Moniz Dedicates Innovative Commercial-Scale Cellulosic...  

Office of Environmental Management (EM)

28,000 vehicles off the road. The cellulosic ethanol produced at the Abengoa Bioenergy Biomass of Kansas (ABBK) facility, located about 90 miles southwest of Dodge City, Kansas,...

190

Silicone rubber membrane bioreactors for bacterial cellulose production  

Science Journals Connector (OSTI)

Cellulose production byAcetobacter pasteurianus...was investigated in static culture using four bioreactors with silicone rubber membrane submerged in the medium. The shape ... , flat sack, tube and cylindrical b...

Masayuki Onodera; Ikuro Harashima; Kiyoshi Toda…

2002-10-01T23:59:59.000Z

191

Chiral Plasmonic Films Formed by Gold Nanorods and Cellulose Nanocrystals  

Science Journals Connector (OSTI)

Chiral plasmonic films have been prepared by incorporating gold nanorods (NRs) in a macroscopic cholesteric film formed by self-assembled cellulose nanocrystals (CNCs). Composite NR-CNC films revealed strong plasmonic chiroptical activity, dependent on ...

Ana Querejeta-Fernández; Grégory Chauve; Myriam Methot; Jean Bouchard; Eugenia Kumacheva

2014-03-03T23:59:59.000Z

192

Amorphous Siliconbased Solar Cells Xunming Deng1  

E-Print Network [OSTI]

transistor), GaAs and the other III-V compounds (the basis for many light emitters), and CdS (often used with the silane. Just as for crystal silicon, the phosphorus doping of the amorphous silicon had induced a conductivity associated with mobile electrons (the material was "n-type"), and the boron doping had induced

Schiff, Eric A.

193

High resolution amorphous silicon radiation detectors  

DOE Patents [OSTI]

A radiation detector employing amorphous Si:H cells in an array with each detector cell having at least three contiguous layers (n type, intrinsic, p type), positioned between two electrodes to which a bias voltage is applied. An energy conversion layer atop the silicon cells intercepts incident radiation and converts radiation energy to light energy of a wavelength to which the silicon cells are responsive. A read-out device, positioned proximate to each detector element in an array allows each such element to be interrogated independently to determine whether radiation has been detected in that cell. The energy conversion material may be a layer of luminescent material having a columnar structure. In one embodiment a column of luminescent material detects the passage therethrough of radiation to be detected and directs a light beam signal to an adjacent a-Si:H film so that detection may be confined to one or more such cells in the array. One or both electrodes may have a comb structure, and the teeth of each electrode comb may be interdigitated for capacitance reduction. The amorphous Si:H film may be replaced by an amorphous Si:Ge:H film in which up to 40 percent of the amorphous material is Ge. Two dimensional arrays may be used in X-ray imaging, CT scanning, crystallography, high energy physics beam tracking, nuclear medicine cameras and autoradiography.

Street, Robert A. (Palo Alto, CA); Kaplan, Selig N. (El Cerrito, CA); Perez-Mendez, Victor (Berkeley, CA)

1992-01-01T23:59:59.000Z

194

Dense colloidal fluids form denser amorphous sediments  

E-Print Network [OSTI]

Dense colloidal fluids form denser amorphous sediments Shir R. Libera,b , Shai Borohovicha of their randomly packed solid sediments. We demonstrate that the most dilute fluids of colloidal hard spheres form loosely packed sediments, where the volume fraction of the particles approaches in frictional systems

Schofield, Andrew B.

195

High resolution amorphous silicon radiation detectors  

DOE Patents [OSTI]

A radiation detector employing amorphous Si:H cells in an array with each detector cell having at least three contiguous layers (n-type, intrinsic, p-type), positioned between two electrodes to which a bias voltage is applied. An energy conversion layer atop the silicon cells intercepts incident radiation and converts radiation energy to light energy of a wavelength to which the silicon cells are responsive. A read-out device, positioned proximate to each detector element in an array allows each such element to be interrogated independently to determine whether radiation has been detected in that cell. The energy conversion material may be a layer of luminescent material having a columnar structure. In one embodiment a column of luminescent material detects the passage therethrough of radiation to be detected and directs a light beam signal to an adjacent a-Si:H film so that detection may be confined to one or more such cells in the array. One or both electrodes may have a comb structure, and the teeth of each electrode comb may be interdigitated for capacitance reduction. The amorphous Si:H film may be replaced by an amorphous Si:Ge:H film in which up to 40 percent of the amorphous material is Ge. Two dimensional arrays may be used in X-ray imaging, CT scanning, crystallography, high energy physics beam tracking, nuclear medicine cameras and autoradiography. 18 figs.

Street, R.A.; Kaplan, S.N.; Perez-Mendez, V.

1992-05-26T23:59:59.000Z

196

Polymorphism in Amorphous SiO2  

Science Journals Connector (OSTI)

Brillouin scattering from a-SiO2 up to 17 GPa shows that an irreversible change in the longitudinal sound velocity takes place between 10 and 17 GPa and that this change is stable at atmospheric pressure. Raman spectra of the retrieved sample indicate that it is also amorphous but differ noticeably from that of the original sample.

M. Grimsditch

1984-06-25T23:59:59.000Z

197

Hybrid Systems of Silver Nanoparticles Generated on Cellulose Surfaces  

Science Journals Connector (OSTI)

(4-7) For instance, polymer supported silver NPs at the moment are attracting much attention in biomedical applications, due to the antibacterial character, enabling their use in wound dressing materials, body wall repairs, tissue scaffolds, or even antimicrobial filters. ... (26) Recently, a cellulose acetate nanofibrillar aerogel structure with about 6 wt % loading content of Ag NPs was prepared. ... Graft copolymerization onto cellulose-based filter paper and its further development as silver nanoparticles loaded antibacterial food-packaging material ...

Ana Maria Ferraria; Sami Boufi; Nicolas Battaglini; Ana Maria Botelho do Rego; Manuel ReiVilar

2009-11-06T23:59:59.000Z

198

Cellulose challenge: where do we go from here  

SciTech Connect (OSTI)

Because of its relatively low cost and high level of availability, wood has become a popular biomass resource for the manufacture of fuels and chemical products. The producers of high-purity cellulose pulps face problems because the kraft process which is the standard source of dissolving pulp involves huge investments. The article examines the future of this industry and assesses these new technologies: solvent pulping; low lignin biomass and microbial cellulose. 6 references.

Lipinsky, E.S.

1983-10-01T23:59:59.000Z

199

Hydroxypropylation of cellulose as a pretreatment for enzymatic hydrolysis  

E-Print Network [OSTI]

) suggest that factors such as particle size, surface area, degree of polymerization, and pore volume also influence hydrolytic behavior. Figure 1. Chemical structure of cellulose showing reactive hydroxyl (-OH) groups. Repeating anhydrocellobiose units... unique chemical properties is hydrozypropylcellulose (HPC). The possibility of forming long poly(propylene oxide) side chains during HPC synthesis makes this cellulose derivative particularly interesting for study. The ability of HPC to possess...

Brix, Scott Tyson

2012-06-07T23:59:59.000Z

200

Carbon Dioxide Capture Process with Regenerable Sorbents  

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

Dioxide Capture Process with Regenerable Sorbents Dioxide Capture Process with Regenerable Sorbents sorbent material. Additionally, the design of the system incorporates a cross- flow moving-bed reactor where the gas flows horizontally through a "panel" of solid sorbent that is slowly moving down-wards under gravity flow. With the expanded use of fossil fuels expected throughout the world, the increase in CO 2 emissions may prove to contribute even more significantly to global climate change. To address this problem, carbon sequestration scientists and engineers have proposed a number of methods to remove CO 2 from gas streams, such as chemical absorption with a solvent, membrane separation, and cryogenic fractionation. However, all of these methods are expensive and possibly cost-prohibitive for a specific application.

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Bioactive Glass Scaffolds for Bone Regeneration  

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

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

202

Bioactive Glass Scaffolds for Bone Regeneration  

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

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

203

Bioactive Glass Scaffolds for Bone Regeneration  

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

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

204

Bioactive Glass Scaffolds for Bone Regeneration  

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

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

205

Bioactive Glass Scaffolds for Bone Regeneration  

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

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

206

Structure and dynamics of a complex of cellulose with EDA: insights into the action of amines on cellulose  

SciTech Connect (OSTI)

The neutron structure of a complex of EDA with cellulose has been determined to reveal the location of hydrogen atoms involved in hydrogen bonding. EDA disrupts the hydrogen bonding pattern of naturally occurring cellulose by accepting a strong hydrogen bond from the O6 hydroxymethyl group as the conformation of this group is rotated from tg to gt. The O3-H O5 intrachain hydrogen bond commonly found in cellulose allomorphs is observed to be disordered in the neutron structure, and quantum chemistry and molecular dynamics calculations show that O3 prefers to donate to EDA. The hydrogen bonding arrangement is highly dynamic with bonds continually being formed and broken thus explaining the difficulty in locating all of the hydrogen atoms in the neutron scattering density maps. Comparison with other polysaccharide-amine complexes supports a common underlying mechanism for amine disruption of cellulose.

Sawada, Daisuke [ORNL; Nishiyama, Yoshiharu [Centre de Recherches sur les Macromolecules Vegetales (CERMAV-CNRS); Petridis, Loukas [ORNL; Parthasarathi, R. [Los Alamos National Laboratory (LANL); Gnanakaran, S [Los Alamos National Laboratory (LANL); Forsyth, V. T. [Institut Laue Langevin and Keele University; Wada, Masahisa [University of Tokyo, Japan; Langan, Paul [ORNL

2013-01-01T23:59:59.000Z

207

Quaternary Ammonium Salts and their Low-Melting Eutectics for the Conversion of Cellulose and Cellulose-Derived Sugars.  

E-Print Network [OSTI]

??The use of Ionic Liquids (ILs) as solvents presents a promising route for the conversion of cellulosic biomass feedstock to value-added products, like 5-hydroxymethylfurfural (HMF),… (more)

Parvathikar, Sameer

2013-01-01T23:59:59.000Z

208

Efficient Sugar Release by the Cellulose Solvent-Based Lignocellulose Fractionation Technology and Enzymatic Cellulose Hydrolysis  

Science Journals Connector (OSTI)

Biological Systems Engineering Department, Virginia Polytechnic Institute and State University, 210-A Seitz Hall, Blacksburg, Virginia 24061, Institute for Critical Technology and Applied Science (ICTAS), Virginia Polytechnic Institute and State University, Virginia 24061, and Department of Energy (DOE) BioEnergy Science Center, Oak Ridge, Tennessee 37831 ... The biomass samples before pretreatment were prepared in the same way as the Biomass Refining Consortium for Applied Fundamentals and Innovation (CAFI) (21, 22). ... to make cellulosic materials accessible to enzymic hydrolysis, with increased attention to the fundamental chem. ...

Geoffrey Moxley; Zhiguang Zhu; Y.-H. Percival Zhang

2008-08-15T23:59:59.000Z

209

Real-Time Observation of the Swelling and Hydrolysis of a Single Crystalline Cellulose Fiber Catalyzed by Cellulase 7B  

E-Print Network [OSTI]

facilitate its application for the efficient and economical production of cellulosic ethanol. INTRODUCTIONReal-Time Observation of the Swelling and Hydrolysis of a Single Crystalline Cellulose Fiber Information ABSTRACT: The biodegradation of cellulose involves the enzymatic action of cellulases

Dutcher, John

210

Bonding defects in hydrogenated amorphous silicon  

SciTech Connect (OSTI)

A mechanism for charged-carrier-trapping-induced defect metastability in hydrogenated amorphous silicon (a-Si:H) and in hydrogenated amorphous silicon alloys containing relatively high concentrations of oxygen and/or nitrogen atoms (a-Si:X:H, X = O or N) is described. The experimental results that identified this defect metastability mechanism were (i) differences in the Staebler-Wronski effect in a-Si:H and a-Si:N:H alloys prepared from N{sub 2} and NH{sub 3} source gases by remote plasma-enhanced chemical-vapor deposition, and (ii) differences in defect generation at N-atom terminated Si-SiO{sub 2} interfaces prepared from NH{sub 3} and N{sub 2}O.

Lucovsky, G.; Yang, H. [North Carolina State Univ., Raleigh, NC (United States)

1996-12-31T23:59:59.000Z

211

Germanium detector passivated with hydrogenated amorphous germanium  

DOE Patents [OSTI]

Passivation of predominantly crystalline semiconductor devices (12) is provided for by a surface coating (21) of sputtered hydrogenated amorphous semiconductor material. Passivation of a radiation detector germanium diode, for example, is realized by sputtering a coating (21) of amorphous germanium onto the etched and quenched diode surface (11) in a low pressure atmosphere of hydrogen and argon. Unlike prior germanium diode semiconductor devices (12), which must be maintained in vacuum at cryogenic temperatures to avoid deterioration, a diode processed in the described manner may be stored in air at room temperature or otherwise exposed to a variety of environmental conditions. The coating (21) compensates for pre-existing undesirable surface states as well as protecting the semiconductor device (12) against future impregnation with impurities.

Hansen, William L. (Walnut Creek, CA); Haller, Eugene E. (Berkeley, CA)

1986-01-01T23:59:59.000Z

212

KS0 regeneration on nuclei and the coherent production model  

Science Journals Connector (OSTI)

We use the coherent production model to calculate the energy dependence of the forward KS0 regeneration amplitude on nuclear targets. The agreement with experiment is satisfactory.

Fumiyo Uchiyama

1974-02-01T23:59:59.000Z

213

Reductant Chemistry during LNT Regeneration for a Lean Gasoline...  

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

Oak Ridge National Laboratory VW Scholar at the University of Tennessee Reductant Chemistry during LNT Regeneration for a Lean Gasoline Engine Poster P-09 2010 DEER Directions...

214

Simultaneous cell growth and ethanol production from cellulose by an engineered yeast consortium displaying a functional mini-cellulosome  

E-Print Network [OSTI]

Cellulase, clostridia, and ethanol. Microbiol Mol Biol RevNext- generation cellulosic ethanol technologies and theirProduction of cellulosic ethanol in Saccharomyces cerevisiae

Goyal, Garima; Tsai, Shen-Long; Madan, Bhawna; DaSilva, Nancy A; Chen, Wilfred

2011-01-01T23:59:59.000Z

215

Regenerable Hydrogen Chloride Removal Sorbent and Regenerable Multifunctional Hydrogen Sulfide and Hydrogen Chloride Removal Sorbent for High Temperature Gas Streams  

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

Hydrogen Chloride and Hydrogen Sulfide Hydrogen Chloride and Hydrogen Sulfide Removal Sorbents for High Temperature Gas Streams Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking licensing partners interested in implementing United States Patent Number 7,767,000 entitled "Regenerable Hydrogen Chloride Removal Sorbent and Regenerable Multifunctional Hydrogen Sulfide and Hydrogen Chloride Removal Sorbent for High Temperature Gas Streams." Disclosed in this patent is the invention of a unique regenerable sorbent process that can remove contaminants from gas produced by the gasification of fossil fuels. Specifically, the process removes hydrogen chloride by using the regenerable sorbent and simultaneously extracts hydrogen chloride compounds and hydrogen

216

www.exeter.ac.uk/inspiring-science Cellulose: sustainable and renewable  

E-Print Network [OSTI]

www.exeter.ac.uk/inspiring-science Cellulose: sustainable and renewable material for many The talk will cover the use of cellulose as a sustainable and renewable source for use in composites

Mumby, Peter J.

217

Diversity of Glycosyl Hydrolases from Cellulose-Depleting Communities Enriched from Casts of Two Earthworm Species  

Science Journals Connector (OSTI)

...metagenomic fosmid libraries from cellulose-depleting...annotated in public databases as...introducing myRDP space and quality controlled public data. Nucleic...metagenomic fosmid libraries from cellulose-depleting...annotated in public databases as...

Ana Beloqui; Taras Y. Nechitaylo; Nieves López-Cortés; Azam Ghazi; María-Eugenia Guazzaroni; Julio Polaina; Axel W. Strittmatter; Oleg Reva; Agnes Waliczek; Michail M. Yakimov; Olga V. Golyshina; Manuel Ferrer; Peter N. Golyshin

2010-07-09T23:59:59.000Z

218

100 years of cellulose fiber diffraction and the emergence of complementary techniques  

Science Journals Connector (OSTI)

Crystallinity is a fundamental property of cellulose. Over recent years an understanding has developed of cellulose synthesized at the plasma membrane by protein complexes that add glucose sugars to linear cha...

Alfred French; Paul Langan

2014-06-01T23:59:59.000Z

219

Cellulosic Biofuels: Expert Views on Prospects for Advancement and Jeffrey Keisler  

E-Print Network [OSTI]

Cellulosic Biofuels: Expert Views on Prospects for Advancement Erin Baker and Jeffrey Keisler funding and the likelihood of achieving advances in cellulosic biofuel technologies. While in collecting more information on this technology. Keywords: Biofuels; Technology R&D; Uncertainty

Massachusetts at Amherst, University of

220

Requirement of the Type II Secretion System for Utilization of Cellulosic Substrates by Cellvibrio japonicus  

Science Journals Connector (OSTI)

...cellulose led us to examine its ability to utilize feedstocks relevant to the bioenergy field. We chose two key biomass feedstocks for these studies: corn stover and switchgrass. Because current approaches to cellulosic biofuels typically involve...

Jeffrey G. Gardner; David H. Keating

2010-06-11T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

J33. CSSC Cellulosic H2 2009 (High Resolution $$$).pdf  

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

Reprint Reprint © Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Supported by  WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Table of Contents X. Ye, Y. Wang, R. C. Hopkins, M. W. W. Adams, B. R. Evans, J. R. Mielenz, Y.-H. P. Zhang* 149 - 152 Spontaneous High-Yield Production of Hydrogen from Cellulosic Materials and Water Catalyzed by Enzyme Cocktails Cocktail reception: Biohydrogen is pro- duced in high yield from cellulosic ma- terials and water in a one-pot process catalyzed by up to 14 enzymes and one coenzyme. This assembly of enzymes re- sults in non-natural catabolic pathways. These spontaneous reactions are con- ducted under modest reaction condi- tions (32 8C and atmospheric pressure). DOI: 10.1002/cssc.200900017 Spontaneous High-Yield Production of Hydrogen from Cellulosic Materials and Water Catalyzed by Enzyme Cocktails Xinhao Ye, [a] Yiran Wang, [a] Robert

222

DOE Joint Genome Institute: Breaking down cellulose without blasting  

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

4, 2011 4, 2011 Breaking down cellulose without blasting lignin: "Dry rot" genome offers lessons for biofuel pretreatment WALNUT CREEK, Calif.-Feared by realtors and homeowners alike, dry rot due to the fungus Serpula lacrymans causes millions of dollars worth of damage to homes and buildings around the world. This brown rot fungus' capacity to break down the cellulose in wood led to its selection for sequencing by the U.S. Department of Energy (DOE) Joint Genome Institute (JGI) in 2007, with the goal of identifying the enzymes involved in the degradation process and using the information to improve cellulosic biofuels production. Photo: A variant of Serpula lacrymans causes dry rot. (Dave Brown via Flickr/Creative Commons Attribution 2.0) As reported online July 14 in Science Express, an international team of

223

New lignocellulose pretreatments using cellulose solvents: a review  

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

Received: Received: 7 September 2012 Accepted: 13 September 2012 Published online in Wiley Online Library: (wileyonlinelibrary.com) DOI 10.1002/jctb.3959 New lignocellulose pretreatments using cellulose solvents: a review Noppadon Sathitsuksanoh, a† Anthe George b,c and Y-H Percival Zhang a,d,e∗ Abstract Non-food lignocellulosic biomass is the most abundant renewable bioresource as a collectable, transportable, and storable chemical energy that is far from fully utilized. The goal of biomass pretreatment is to improve the enzymatic digestibility of pretreated lignocellulosic biomass. Many substrate factors, such as substrate accessibility, lignin content, particle size and so on, contribute to its recalcitrance. Cellulose accessibility to hydrolytic enzymes is believed to be the most important substrate characteristic limiting enzymatic hydrolysis. Cellulose

224

Ionic-Liquid Induced Changes in Cellulose Structure Associated with Enhanced Biomass Hydrolysis  

SciTech Connect (OSTI)

The effects of varying ionic liquid pretreatment parameters on various sources of lignocellulosic biomass have been studied using X-ray powder diffraction, X-ray fiber diffraction, and compositional analysis. Comparative enzymatic hydrolysis and sugar analysis were used to relate the observed changes in cellulose structure to biomass digestibility. In this study, the factor most clearly associated with enhanced biomass hydrolysis is the conversion of cellulose fibers from the cellulose I to the cellulose II crystal phase.

Samayam, Indira P.; Hanson, B. Leif; Langan, Paul; Schall, Constance A. (Toledo)

2011-11-07T23:59:59.000Z

225

Department of Energy Delivers on R&D Targets around Cellulosic Ethanol  

Office of Energy Efficiency and Renewable Energy (EERE)

Scientists at DOE national laboratories successfully demonstrated technical advances required to produce cellulosic ethanol that is cost competitive with petroleum.

226

FERTILISER APPLICATION IN LAND REGENERATION BPG NOTE 7  

E-Print Network [OSTI]

and are covered in BPG Note 6: Application of sewage sludges and composts. When to apply fertiliser MineralFERTILISER APPLICATION IN LAND REGENERATION BPG NOTE 7 Best Practice Guidance for Land Regeneration to solve any mineral deficiencies that may arise later. The best way to decide whether further applications

227

Resonance Absorption and Regeneration in Relativistic Heavy Ion Collisions  

E-Print Network [OSTI]

The regeneration of hadronic resonances is discussed for heavy ion collisions at SPS and SIS-300 energies. The time evolutions of Delta, rho and phi resonances are investigated. Special emphasize is put on resonance regeneration after chemical freeze-out. The emission time spectra of experimentally detectable resonances are explored.

Sascha Vogel; Marcus Bleicher

2005-05-10T23:59:59.000Z

228

Carbon dioxide capture process with regenerable sorbents  

DOE Patents [OSTI]

A process to remove carbon dioxide from a gas stream using a cross-flow, or a moving-bed reactor. In the reactor the gas contacts an active material that is an alkali-metal compound, such as an alkali-metal carbonate, alkali-metal oxide, or alkali-metal hydroxide; or in the alternative, an alkaline-earth metal compound, such as an alkaline-earth metal carbonate, alkaline-earth metal oxide, or alkaline-earth metal hydroxide. The active material can be used by itself or supported on a substrate of carbon, alumina, silica, titania or aluminosilicate. When the active material is an alkali-metal compound, the carbon-dioxide reacts with the metal compound to generate bicarbonate. When the active material is an alkaline-earth metal, the carbon dioxide reacts with the metal compound to generate carbonate. Spent sorbent containing the bicarbonate or carbonate is moved to a second reactor where it is heated or treated with a reducing agent such as, natural gas, methane, carbon monoxide hydrogen, or a synthesis gas comprising of a combination of carbon monoxide and hydrogen. The heat or reducing agent releases carbon dioxide gas and regenerates the active material for use as the sorbent material in the first reactor. New sorbent may be added to the regenerated sorbent prior to subsequent passes in the carbon dioxide removal reactor.

Pennline, Henry W. (Bethel Park, PA); Hoffman, James S. (Library, PA)

2002-05-14T23:59:59.000Z

229

Nuclear reactor cooling system decontamination reagent regeneration  

DOE Patents [OSTI]

An improved method for decontaminating the coolant system of water-cooled nuclear power reactors and for regenerating the decontamination solution. A small amount of one or more weak-acid organic complexing agents is added to the reactor coolant, and the pH is adjusted to form a decontamination solution which is circulated throughout the coolant system to dissolve metal oxides from the interior surfaces and complex the resulting metal ions and radionuclide ions. The coolant containing the complexed metal ions and radionuclide ions is passed through a strong-base anion exchange resin bed which has been presaturated with a solution containing the complexing agents in the same ratio and having the same pH as the decontamination solution. As the decontamination solution passes through the resin bed, metal-complexed anions are exchanged for the metal-ion-free anions on the bed, while metal-ion-free anions in the solution pass through the bed, thus removing the metal ions and regenerating the decontamination solution.

Anstine, Larry D. (San Jose, CA); James, Dean B. (Saratoga, CA); Melaika, Edward A. (Berkeley, CA); Peterson, Jr., John P. (Livermore, CA)

1985-01-01T23:59:59.000Z

230

Active magnetic regenerator method and apparatus  

DOE Patents [OSTI]

In an active magnetic regenerator apparatus having a regenerator bed of material exhibiting the magnetocaloric effect, flow of heat transfer fluid through the bed is unbalanced, so that more fluid flows through the bed from the hot side of the bed to the cold side than from the cold side to the hot side. The excess heat transfer fluid is diverted back to the hot side of the bed. The diverted fluid may be passed through a heat exchanger to draw heat from a fluid to be cooled. The apparatus may be operated at cryogenic temperatures, and the heat transfer fluid may be helium gas and the fluid to be cooled may be hydrogen gas, which is liquified by the device. The apparatus can be formed in multiple stages to allow a greater span of cooling temperatures than a single stage, and each stage may be comprised of two bed parts. Where two bed parts are employed in each stage, a portion of the fluid passing from the hot side to the cold side of a first bed part which does not have a magnetic field applied thereto is diverted back to the cold side of the other bed part in the stage, where it is passed through to the hot side. The remainder of the fluid from the cold side of the bed part of the first stage is passed to the hot side of the bed part of the second stage.

DeGregoria, Anthony J. (Madison, WI); Zimm, Carl B. (Madison, WI); Janda, Dennis J. (McFarland, WI); Lubasz, Richard A. (Deerfield, WI); Jastrab, Alexander G. (Oconomowoc, WI); Johnson, Joseph W. (Madison, WI); Ludeman, Evan M. (Austin, TX)

1993-01-01T23:59:59.000Z

231

Amorphization of Silicon Carbide by Carbon Displacement. | EMSL  

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

of Silicon Carbide by Carbon Displacement. Amorphization of Silicon Carbide by Carbon Displacement. Abstract: We have used molecular dynamics simulations to examine the possibility...

232

Amorphous Molecular Organic Solids for Gas Adsorption. | EMSL  

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

and JL Atwood.2009."Amorphous Molecular Organic Solids for Gas Adsorption."Angewandte Chemie International Edition 48(30):5492 5495. Authors: J Tian PK Thallapally SJ Dalgarno...

233

Electron-Stimulated Production of Molecular Oxygen in Amorphous...  

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

Precursor Transport Through the Hydrogen Electron-Stimulated Production of Molecular Oxygen in Amorphous Solid Water on Pt(111): Precursor Transport Through the Hydrogen...

234

Probing the Interaction of Amorphous Solid Water on a Hydrophobic...  

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

Surface: Dewetting and Crystallization Kinetics of ASW on Abstract: Desorption of carbon tetrachloride from beneath an amorphous solid water (ASW) overlayer is explored...

235

Cellulose solventbased biomass pretreatment breaks highly ordered hydrogen bonds in cellulose fibers of switchgrass  

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

Solvent-Based Solvent-Based Biomass Pretreatment Breaks Highly Ordered Hydrogen Bonds in Cellulose Fibers of Switchgrass Noppadon Sathitsuksanoh, 1,2 Zhiguang Zhu, 1 Sungsool Wi, 3 Y.-H. Percival Zhang 1,2,4 1 Biological Systems Engineering Department, Virginia Polytechnic Institute and State University (Virginia Tech), 210-A Seitz Hall, Blacksburg, Virginia 24061; telephone: 540-231-7414, fax: 540-231-3199; e-mail: ypzhang@vt.edu 2 Institute for Critical Technology and Applied Science (ICTAS), Virginia Polytechnic Institute and State University, Blacksburg, Virginia 3 Chemistry Department, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 4 DOE BioEnergy Science Center (BESC), Oak Ridge, Tennessee Received 25 June 2010; revision received 23 August 2010; accepted 4 October 2010 Published online 21 October 2010 in Wiley Online Library (wileyonlinelibrary.com).

236

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

237

Changes in the Enzymatic Hydrolysis Rate of Avicel Cellulose With Conversion  

E-Print Network [OSTI]

INTRODUCTION Cellulose can be hydrolyzed to glucose, a sugar that is easily fermented to ethanol and otherChanges in the Enzymatic Hydrolysis Rate of Avicel Cellulose With Conversion Bin Yang, Deidre M: 10.1002/bit.20942 Abstract: The slow down in enzymatic hydrolysis of cellulose with conversion has

California at Riverside, University of

238

Kinetic Modeling of Cellulosic Biomass to Ethanol Via Simultaneous Saccharification and  

E-Print Network [OSTI]

ARTICLE Kinetic Modeling of Cellulosic Biomass to Ethanol Via Simultaneous Saccharification. Biotechnol. Bioeng. 2009;102: 66­72. � 2008 Wiley Periodicals, Inc. KEYWORDS: cellulose; ethanol; model validation Introduction Conversion of cellulosic biomass to ethanol and other liquid fuels is of interest

California at Riverside, University of

239

Cultivar variation and selection potential relevant to the production of cellulosic ethanol from wheat straw  

E-Print Network [OSTI]

Cultivar variation and selection potential relevant to the production of cellulosic ethanol from Sugar Wheat straw Variation Cultivar a b s t r a c t Optimizing cellulosic ethanol yield depends Elsevier Ltd. All rights reserved. 1. Introduction Decreasing the cost of producing cellulosic ethanol

California at Riverside, University of

240

Production of Cellulase on Mixtures of Xylose and Cellulose in a Fed-Batch Process  

E-Print Network [OSTI]

saccharification to sugars for ethanol production. In the past decade, enzymatic hydrolysis of cellulose hasProduction of Cellulase on Mixtures of Xylose and Cellulose in a Fed-Batch Process Ali Mohagheghi was studied in a fed-batch system. An initial mixture of 30 g/L xylose and 20 g/L cellulose

California at Riverside, University of

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Kinetic Modeling of Cellulosic Biomass to Ethanol Via Simultaneous Saccharification and  

E-Print Network [OSTI]

ARTICLE Kinetic Modeling of Cellulosic Biomass to Ethanol Via Simultaneous Saccharification: cellulose; ethanol; kinetics; reactor design Introduction Plant biomass is the only foreseeable sustainable­803] for simultaneous saccharification of fermentation of cellulosic biomass is extended and modified to accommodate

California at Riverside, University of

242

Cellulose nanowhiskers (CNW) have attracted much attention over the past several years due to their  

E-Print Network [OSTI]

Cellulose nanowhiskers (CNW) have attracted much attention over the past several years due- hydroxybutyrate-hydroxyvalerate). Cellulose nanowhiskers were prepared from microcrystilline cellulose (MCC) using and spun into fibers using a spinneret of diameter 370 m and an ethanol coagulation bath. The fibers were

Collins, Gary S.

243

Carbon Dioxide Capture from Flue Gas Using Dry, Regenerable Sorbents  

SciTech Connect (OSTI)

This report describes research conducted between July 1, 2006 and September 30, 2006 on the use of dry regenerable sorbents for removal of carbon dioxide (CO{sub 2}) from coal combustion flue gas. Modifications to the integrated absorber/ sorbent regenerator/ sorbent cooler system were made to improve sorbent flow consistency and measurement reliability. Operation of the screw conveyor regenerator to achieve a sorbent temperature of at least 120 C at the regenerator outlet is necessary for satisfactory carbon dioxide capture efficiencies in succeeding absorption cycles. Carbon dioxide capture economics in new power plants can be improved by incorporating increased capacity boilers, efficient flue gas desulfurization systems and provisions for withdrawal of sorbent regeneration steam in the design.

David A. Green; Thomas O. Nelson; Brian S. Turk; Paul D. Box Raghubir P. Gupta

2006-09-30T23:59:59.000Z

244

Antimony Induced Crystallization of Amorphous Silicon  

Science Journals Connector (OSTI)

Antimony induced crystallization of PVD (physics vapor deposition) amorphous silicon can be observed on sapphire substrates. Very large crystalline regions up to several tens of micrometers can be formed. The Si diffraction patterns of the area of crystallization can be observed with TEM (transmission electron microscopy). Only a few and much smaller crystals of the order of 1?m were formed when the antimony layer was deposited by MBE (molecular beam epitaxy) compared with a layer formed by thermal evaporation. The use of high vacuum is essential in order to observe any Sb induced crystallization at all. In addition it is necessary to take measures to limit the evaporation of the antimony.

Y. Wang; H.Z. Li; C.N. Yu; G.M. Wu; I. Gordon; P. Schattschneider; O. Van Der Biest

2007-01-01T23:59:59.000Z

245

Deuterium in crystalline and amorphous silicon  

SciTech Connect (OSTI)

The authors report deuteron magnetic resonance (DMR) measurements on aged deuterium-implanted single crystal n-type silicon and comparisons with amorphous silicon spectra. The sample film was prepared six years ago by deuteration from a-D{sub 2} plasma and evaluated by a variety of experimental methods. Deuterium has been evolving with time and the present DMR signal shows a smaller deuteron population. A doublet from Si-D configurations along (111) has decreased more than have central molecular DMR components, which include 47 and 12 kHz FWHM gaussians. Transient DMR magnetization recoveries indicate spin lattice relaxation to para-D{sub 2} relaxation centers.

Borzi, R.; Ma, H.; Fedders, P.A.; Leopold, D.J.; Norberg, R.E.; Boyce, J.B.; Johnson, N.M.; Ready, S.E.; Walker, J.

1997-07-01T23:59:59.000Z

246

Subtleties of capacitance transients in amorphous silicon  

SciTech Connect (OSTI)

Using junction capacitance methods, the authors describe the effect of contacts on charge emission transients in n-type hydrogenated amorphous silicon. The results demonstrate some of the difficulties encountered in observing and interpreting anomalous temperature independent emission transients (slow relaxation). In this paper, the authors present additional data and reconcile the absence of anomalous emission transients in some cases with a discussion of the dynamics of depletion width filling. The authors show that the transient capacitance response of Schottky structure is not only related to the contact configuration but is connected to the rate of charge injection into the depletion region.

Crandall, R.S. [National Renewable Energy Lab., Golden, CO (United States); Lips, K. [Hahn-Meitner-Inst., Berlin (Germany)

1996-12-31T23:59:59.000Z

247

Behavior of Si and C atoms in ion amorphized SiC. | EMSL  

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

Si and C atoms in ion amorphized SiC. Behavior of Si and C atoms in ion amorphized SiC. Abstract: Single crystal 6H-SiC wafers were fully amorphized at room temperature or 200 K...

248

Annealing Simulations of Nano-Sized Amorphous Structures in SiC...  

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

Simulations of Nano-Sized Amorphous Structures in SiC. Annealing Simulations of Nano-Sized Amorphous Structures in SiC. Abstract: A two-dimensional model of a nano-sized amorphous...

249

Methods of pretreating comminuted cellulosic material with carbonate-containing solutions  

DOE Patents [OSTI]

Methods of pretreating comminuted cellulosic material with an acidic solution and then a carbonate-containing solution to produce a pretreated cellulosic material are provided. The pretreated material may then be further treated in a pulping process, for example, a soda-anthraquinone pulping process, to produce a cellulose pulp. The pretreatment solutions may be extracted from the pretreated cellulose material and selectively re-used, for example, with acid or alkali addition, for the pretreatment solutions. The resulting cellulose pulp is characterized by having reduced lignin content and increased yield compared to prior art treatment processes.

Francis, Raymond

2012-11-06T23:59:59.000Z

250

Irreversible transformations of native celluloses, upon exposure to elevated temperatures  

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

Carbohydrate Polymers 100 (2014) 2- 8 Carbohydrate Polymers 100 (2014) 2- 8 Contents lists available at ScienceDirect Carbohydrate Polymers j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / c a r b p o l Irreversible transformations of native celluloses, upon exposure to elevated temperatures R.S. Atalla a , M.F. Crowley b , M.E. Himmel b , R.H. Atalla a,c,∗ a Cellulose Sciences International, Madison, WI, United States b National Renewable Energy Laboratory, Golden, CO, United States c University of Wisconsin-Madison, Madison, WI, United States a r t i c l e i n f o Article history: Received 29 August 2012 Received in revised form 4 June 2013 Accepted 7 June 2013 Available online 15 June 2013 Keywords: Transformation Irreversible Celluloses Elevated Temperatures Native Accessibility Aggregation a b s t r a c t Current research, basic and applied, assumes that observed recalcitrance of celluloses is an inherent

251

Can Delignification Decrease Cellulose Digestibility in Acid Pretreated Corn Stover?  

SciTech Connect (OSTI)

It has previously been shown that the improved digestibility of dilute acid pretreated corn stover is at least partially due to the removal of xylan and the consequent increase in accessibility of the cellulose to cellobiohydrolase enzymes. We now report on the impact that lignin removal has on the accessibility and digestibility of dilute acid pretreated corn stover. Samples of corn stover were subjected to dilute sulfuric acid pretreatment with and without simultaneous (partial) lignin removal. In addition, some samples were completely delignified after the pretreatment step using acidified sodium chlorite. The accessibility and digestibility of the samples were tested using a fluorescence-labeled cellobiohydrolase (Trichoderma reesei Cel7A) purified from a commercial cellulase preparation. Partial delignification of corn stover during dilute acid pretreatment was shown to improve cellulose digestibility by T. reesei Cel7A; however, decreasing the lignin content below 5% (g g{sup -1}) by treatment with acidified sodium chlorite resulted in a dramatic reduction in cellulose digestibility. Importantly, this effect was found to be enhanced in samples with lower xylan contents suggesting that the near complete removal of xylan and lignin may cause aggregation of the cellulose microfibrils resulting in decreased cellulase accessibility.

Ishizawa, C. I.; Jeoh, T.; Adney, W. S.; Himmel, M. E.; Johnson, D. K.; Davis, M. F.

2009-01-01T23:59:59.000Z

252

Unconventional Relationshipsfor Hemicellulose Hydrolysis and Subsequent Cellulose Digestion  

E-Print Network [OSTI]

be pretreated with dilute sulfuric acid to recover high yields of sugars directly from hemicellulose and subsequently by enzymatic hydrolysis of the residual cellulose, and these sugars can be used to produce fuels and needed technology advances. Hemicellulose removal is affected by solids concentration and flow through

California at Riverside, University of

253

TOPICAL PAPER Potential Synergies and Challenges in Refining Cellulosic Biomass  

E-Print Network [OSTI]

TOPICAL PAPER Potential Synergies and Challenges in Refining Cellulosic Biomass to Fuels, Chemicals that can reduce greenhouse gas emissions, enhance energy security, improve the economy, dispose of such products, and sugar costs are predicted to drop with plant size as a result of economies of scale

California at Riverside, University of

254

Synthesis and regeneration of lead (IV) acetate  

SciTech Connect (OSTI)

Lead acetate [Pb(O{sub 2}CMe){sub 4}] was easily synthesized from a warm solution of Pb{sub 3}O{sub 4}, HO{sub 2}CMe and O(OCMe){sub 2} following literature preparations when the appropriate measures to minimize water contamination were followed. Furthermore, Pb(O{sub 2}CMe){sub 4} which has been decomposed (evidenced by the appearance of a purple color due to oxidation) can be regenerated using a similar preparatory route. Introduction of Pb(O{sub 2}CMe){sub 4} from the two routes outlined above into the IMO process for production of PZT thin films gave films with comparable ferroelectric properties to commercially available Pb(O{sub 2}CMe){sub 4} precursors. However, the freshly synthesized material yields PZT films with better properties compared to the recycled material.

Boyle, T.J.; Al-Shareef, H.N.; Moore, G.J. [Sandia National Labs., Albuquerque, NM (United States). Advanced Materials Lab.

1996-11-01T23:59:59.000Z

255

Thermal regeneration of an electrochemical concentration cell  

DOE Patents [OSTI]

A system and method for thermally regenerating an electrochemical concentration cell having first and second aluminum electrodes respectively positioned in contact with first and second electrolytes separated by an ion exchange member, the first and second electrolytes being composed of different concentrations of an ionic solvent and a salt, preferably an aluminum halide. The ionic solvent may be either organic or inorganic with a relatively low melting point, the ionic solvent and the salt form a complex wherein the free energy of formation of said complex is less than about -5 Kcal/mole. A distillation column using solar heat or low grade industrial waste heat receives the first and second electrolytes and thermally decomposes the salt-solvent complex to provide feed material for the two half cells.

Krumpelt, Michael (Naperville, IL); Bates, John K. (Plainfield, IL)

1981-01-01T23:59:59.000Z

256

Thermal regeneration of an electrochemical concentration cell  

DOE Patents [OSTI]

A system and method are described for thermally regenerating an electrochemical concentration cell having first and second aluminum electrodes respectively positioned in contact with first and second electrolytes separated by an ion exchange member, the first and second electrolytes being composed of different concentrations of an ionic solvent and a salt, preferably an aluminum halide. The ionic solvent may be either organic or inorganic with a relatively low melting point, the ionic solvent and the salt form a complex wherein the free energy of formation of said complex is less than about -5 kcal/mole. A distillation column using solar heat or low grade industrial waste heat receives the first and second electrolytes and thermally decomposes the salt-solvent complex to provide feed material for the two half cells.

Krumpelt, M.; Bates, J.K.

1980-05-09T23:59:59.000Z

257

Hydrogenated amorphous silicon-germanium alloys  

SciTech Connect (OSTI)

This report describes the effects of the germanium fraction in hydrogenated amorphous silicon-germanium alloys on various parameters, especially those that are indicators of film quality, and the impact of deposition methods, feedgas mixtures, and other deposition parameters on a SiGe:H and a-SiGe:H:F film characteristics and quality. Literature data show the relationship between germanium content, hydrogen content, deposition method (various glow discharges and CVD), feedgas lmixture, and other parameters and properties, such as optical band gap, dark and photoconductivities, photosensitivity, activation energy, Urbach parameter, and spin density. Some of these are convenient quality indicators; another is the absence of microstructure. Examining RF glow discharge with both a diode and triode geometry, DC proximity glow discharge, microwave glow discharge, and photo-CVD, using gas mixtures such as hydrogen-diluted and undiluted mixtures of silane/germane, disilane/germane, silane/germaniumtetrafluoride, and others, it was observed that hydrogen dilution (or inert gas dilution) is essential in achieving high photosensitivity in silicon-germanium alloys (in contradistinction to amorphous hydrogenated silicon). Hydrogen dilution results in a higher photosensitivity than do undiluted gas mixtures. 81 refs., 42 figs., 7 tabs.

Luft, W.

1988-02-01T23:59:59.000Z

258

Amorphous hafnium-indium-zinc oxide semiconductor thin film transistors  

Science Journals Connector (OSTI)

We reported on the performance and electrical properties of co-sputtering-processed amorphous hafnium-indium-zinc oxide (?-HfIZO) thin film transistors (TFTs). Co-sputtering-processed ?-HfIZO thin films have shown an amorphous phase in nature. ...

Sheng-Po Chang; San-Syong Shih

2012-01-01T23:59:59.000Z

259

Amorphe ferromagnetische werkstoffe - magnetische grundlagen, eigenschaften und anwendungen  

Science Journals Connector (OSTI)

Zusammenfassung Nach einem Überblick über die magnetischen Grundkonstanten und die erzielten Eigenschaftswerte ferromagnetischer amorpher Legierungen werden technische Anwendungsmöglichkeiten behandelt. After a survey is given of the fundamental magnetic aspects and the properties attained with ferromagnetic amorphous alloys, different fields of applications are discussed.

H.-R Hilzinger; A Mager; H Warlimont

1978-01-01T23:59:59.000Z

260

Superlattice doped layers for amorphous silicon photovoltaic cells  

DOE Patents [OSTI]

Superlattice doped layers for amorphous silicon photovoltaic cells comprise a plurality of first and second lattices of amorphous silicon alternatingly formed on one another. Each of the first lattices has a first optical bandgap and each of the second lattices has a second optical bandgap different from the first optical bandgap. A method of fabricating the superlattice doped layers also is disclosed.

Arya, Rajeewa R. (Doylestown, PA)

1988-01-12T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Pentagonal puckering in a sheet of amorphous graphene  

E-Print Network [OSTI]

Pentagonal puckering in a sheet of amorphous graphene Y. Li 1 , F. Inam 2 , Avishek Kumar 3 , M. F 2011 Published online 13 July 2011 Keywords amorphous graphene, density functional theory, fullerenes Ordered graphene has been extensively studied. In this paper, we undertake a density functional study

Thorpe, Michael

262

Glutamate Surface Speciation on Amorphous Titanium Dioxide and  

E-Print Network [OSTI]

Glutamate Surface Speciation on Amorphous Titanium Dioxide and Hydrous Ferric Oxide D I M I T R I (HFO) and titanium dioxide exhibit similar strong attachment of many adsorbates including biomolecules on amorphous titanium dioxide. The results indicate that glutamate adsorbs on HFO as a deprotonated divalent

Sverjensky, Dimitri A.

263

Hydrogen plasma enhanced crystallization of hydrogenated amorphous silicon films  

E-Print Network [OSTI]

Hydrogen plasma enhanced crystallization of hydrogenated amorphous silicon films K. Pangal,a) J. C August 1998; accepted for publication 21 October 1998 We report that a room temperature hydrogen plasma thermal crystallization of amorphous silicon time by a factor of five. Exposure to hydrogen plasma reduces

264

E-Print Network 3.0 - amorphous silicon carbon Sample Search...  

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

is changing from a cross-linked diamond-like carbon material to an amorphous silicon carbide material... with silicon. 1. Introduction Amorphous hydrogenated silicon carbide...

265

E-Print Network 3.0 - amorphous silicon solar Sample Search Results  

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

for a research organization in the optimization of the amorphous silicon solar cell... photovoltaics on flexible substrates. Managed amorphous silicon research program...

266

Electronic Origin For The Phase Transition From Amorphous LixSi...  

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

lithiation, silicon transforms to amorphous LixSi (a-LixSi) via electrochemical driven solid state amorphization. With increasing lithium concentration, a-LixSi transforms to...

267

E-Print Network 3.0 - amorphous silicon-carbon alloys Sample...  

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

1. On the one hand, stable amorphous alloy which leads to the change... of eutectic alloy amorphous silicon film. (b) SAD pattern of ... Source: Grigoriev, Alexei -...

268

E-Print Network 3.0 - amorphous base alloy Sample Search Results  

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

1. On the one hand, stable amorphous alloy which leads to the change... of eutectic alloy amorphous silicon film. (b) SAD pattern of ... Source: Grigoriev, Alexei -...

269

E-Print Network 3.0 - al-based amorphous matrix Sample Search...  

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

(2000) 238250 www.elsevier.comlocatejallcom Summary: microscopic investigations of the formation of eutectic alloys in the systems: amorphous Siparticle Au... , amorphous Si...

270

E-Print Network 3.0 - amorphous si films Sample Search Results  

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

jallcom Summary: microscopic investigations of the formation of eutectic alloys in the systems: amorphous Siparticle Au... , amorphous Siparticle Al showed that the formation...

271

E-Print Network 3.0 - amorphous kei kohinshitsu Sample Search...  

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

by metal diffusion... into amorphous silicon with the formation of metastable amorphous metal silicide. Supersaturation Source: Grigoriev, Alexei - Department of Materials...

272

Structural relaxation of vacancies in amorphous silicon  

SciTech Connect (OSTI)

The authors have studied the structural relaxation of vacancies in amorphous silicon (a-Si) using a tight-binding molecular-dynamics method. The most significant difference between vacancies in a-Si and those in crystalline silicon (c-Si) is that the deep gap states do not show up in a-Si. This difference is explained through the unusual behavior of the structural relaxation near the vacancies in a-Si, which enhances the sp{sup 2} + p bonding near the band edges. They have also observed that the vacancies do not migrate below 450 K although some of them can still be annihilated, particularly at high defect density due to large structural relaxation.

Kim, E.; Lee, Y.H.; Chen, C.; Pang, T.

1997-07-01T23:59:59.000Z

273

Tailored magnetic anisotropy in an amorphous trilayer  

SciTech Connect (OSTI)

An amorphous Co{sub 68}Fe{sub 24}Zr{sub 8}(3 nm)/Al{sub 70}Zr{sub 30}(3 nm)/Co{sub 68}Fe{sub 24}Zr{sub 8}(3 nm) trilayer system has been investigated using in-plane and out-of-plane angular dependent ferromagnetic resonance at different frequencies. The in-plane magnetic anisotropy is uniaxial, retaining its value of (2.9 {+-} 0.1) x 10{sup 3} J/m{sup 3} for each magnetic layer, whereas its direction was tailored independently in an arbitrary manner by applying an external magnetic field during the film deposition. The perpendicular anisotropy constant, supposed to reflect the interface quality, is nearly identical for both layers. Furthermore, the magnetic layers act independently upon each other due to the absence of interlayer coupling.

Fu Yu [Department of Physics, Southeast University, 211189 Nanjing (China); Fakultaet fuer Physik and Center for Nanointegration Duisburg-Essen (CeNIDE), Universitaet Duisburg-Essen, 47048 Duisburg (Germany); Barsukov, I.; Spasova, M.; Lindner, J.; Meckenstock, R.; Farle, M. [Fakultaet fuer Physik and Center for Nanointegration Duisburg-Essen (CeNIDE), Universitaet Duisburg-Essen, 47048 Duisburg (Germany); Raanaei, H. [Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120 Uppsala (Sweden); Department of Physics, Persian Gulf University, Bushehr 75168 (Iran, Islamic Republic of); Hjoervarsson, B. [Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120 Uppsala (Sweden)

2011-06-01T23:59:59.000Z

274

Martinez Sulfuric Acid Regeneration Plt Biomass Facility | Open Energy  

Open Energy Info (EERE)

Martinez Sulfuric Acid Regeneration Plt Biomass Facility Martinez Sulfuric Acid Regeneration Plt Biomass Facility Jump to: navigation, search Name Martinez Sulfuric Acid Regeneration Plt Biomass Facility Facility Martinez Sulfuric Acid Regeneration Plt Sector Biomass Facility Type Non-Fossil Waste Location Contra Costa County, California Coordinates 37.8534093°, -121.9017954° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.8534093,"lon":-121.9017954,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

275

Electrochemically-mediated amine regeneration for carbon dioxide separations  

E-Print Network [OSTI]

This thesis describes a new strategy for carbon dioxide (CO?) separations based on amine sorbents, which are electrochemically-mediated to facilitate the desorption and regeneration steps of the separation cycle. The ...

Stern, Michael C. (Michael Craig)

2014-01-01T23:59:59.000Z

276

Mechanical properties of collagen-based scaffolds for tissue regeneration  

E-Print Network [OSTI]

Collagen-glycosaminoglycan (CG) scaffolds for the regeneration of skin and nerve have previously been fabricated by freeze-drying a slurry containing a co-precipitate of collagen and glycosaminoglycan. Recently, mineralized ...

Kanungo, Biraja Prasad, 1980-

2009-01-01T23:59:59.000Z

277

Regeneration and maintenance of the planarian nervous system  

E-Print Network [OSTI]

Planarians can regenerate all tissues, including the central nervous system and the eyes. This process depends on a population of cells in the adult, the neoblasts, that includes pluripotent stem cells. Whether the neoblast ...

Lapan, Sylvain William

2012-01-01T23:59:59.000Z

278

Lattice Boltzmann simulation on continuously regenerating diesel filter  

Science Journals Connector (OSTI)

...of the filter. We simulated a continuously regenerating DPF while simultaneously considering the deposition and combustion processes of soot particles. 2. Analytical model and X-ray computed tomography measurement In this section, the lattice...

2011-01-01T23:59:59.000Z

279

Transient Thermal Performance of the Stirling Engine Wire Regenerator  

Science Journals Connector (OSTI)

8 January 1994 research-article Transient Thermal Performance of the Stirling Engine Wire Regenerator Allan J. Organ Analyses of the classic Hausen type are not merely inappropriate to conditions in the Stirling...

1994-01-01T23:59:59.000Z

280

Forest biomass and pulpwood in particular is the most important raw material for cellulose. The most common species for this purpose are pine, spruce and birch in the Nordic countries and eucalyptus and  

E-Print Network [OSTI]

Forest biomass and pulpwood in particular is the most important raw material for cellulose diverse novel processes for separating cellulose, hemi cellulose and lignin from biomass. Biorefineries

Kaski, Samuel

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Formation, regeneration and fusion of protoplasts from Gliocladium spp.  

E-Print Network [OSTI]

FORMATION, REGENERATION AND FUSION OF PROTOPLASTS FROM GLIOCLADIUM SPP. A Thesis by MONICA LEIGH SEH Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirements of the degree of MASTER OF SCIENCE... August 1987 Major Subject: Plant Pathology FORMATION, REGENERATION AND FUSION OF PROTOPLASTS FROM GLIOCLADIUM SPP. A Thesis MONICA LEIGH SEH Approved as to style and content by: Charles M. X nerle (Chairperson of Committee) ic ael D. Thomas...

Seh, Monica Leigh

2012-06-07T23:59:59.000Z

282

U. K. consortium Stirling engine regenerator effectiveness and heater performance  

SciTech Connect (OSTI)

This paper covers results of measurements of effectiveness of regenerator materials by use of a dynamic test rig. The rig enables measurements to be made of enthalpy flux through the regenerator under simulated Stirling engine conditions of fluid flow and heat transfer. The paper also discusses the design and operation of the 60 kw heat-pipe heater head of the U.K. Consortium Stirling engine.

Rice, G.; Dadd, M.W.; Jones, J.D.; Thonger, J.

1983-08-01T23:59:59.000Z

283

Carbon fiber composite molecular sieve electrically regenerable air filter media  

DOE Patents [OSTI]

An electrically regenerable gas filter system includes a carbon fiber composite molecular sieve (CFCMS) filter medium. After a separate medium-efficiency pre-filter removes particulate from the supply airstream, the CFCMS filter sorbs gaseous air pollutants before the air is recirculated to the space. When saturated, the CFCMS media is regenerated utilizing a low-voltage current that is caused to pass through the filter medium.

Wilson, Kirk A. (Knoxville, TN); Burchell, Timothy D. (Oak Ridge, TN); Judkins, Roddie R. (Knoxville, TN)

1998-01-01T23:59:59.000Z

284

Carbon fiber composite molecular sieve electrically regenerable air filter media  

DOE Patents [OSTI]

An electrically regenerable gas filter system includes a carbon fiber composite molecular sieve (CFCMS) filter medium. After a separate medium-efficiency pre-filter removes particulate from the supply air stream, the CFCMS filter sorbs gaseous air pollutants before the air is recirculated to the space. When saturated, the CFCMS media is regenerated utilizing a low-voltage current that is caused to pass through the filter medium. 3 figs.

Wilson, K.A.; Burchell, T.D.; Judkins, R.R.

1998-10-27T23:59:59.000Z

285

An infrared and luminescence study of tritiated amorphous silicon  

SciTech Connect (OSTI)

Tritium has been incorporated into amorphous silicon. Infrared spectroscopy shows new infrared vibration modes due to silicon-tritium (Si-T) bonds in the amorphous silicon network. Si-T vibration frequencies are related to Si-H vibration frequencies by simple mass relationships. Inelastic collisions of {beta} particles, produced as a result of tritium decay, with the amorphous silicon network results in the generation of electron-hole pairs. Radiative recombination of these carriers is observed. Dangling bonds associated with the tritium decay reduce luminescence efficiency.

Sidhu, L.S.; Kosteski, T.; Kherani, N.P.; Gaspari, F.; Zukotynski, S.; Shmayda, W.

1997-07-01T23:59:59.000Z

286

Development of Cellulosic Biofuels (LBNL Summer Lecture Series)  

ScienceCinema (OSTI)

Summer Lecture Series 2007: Chris Somerville, Director of the Energy Biosciences Institute and an award-winning plant biochemist with Berkeley Lab's Physical Biosciences Division, is a leading authority on the structure and function of plant cell walls. He discusses an overview of some of the technical challenges associated with the production of cellulosic biofuels, which will require an improved understanding of a diverse range of topics in fields such as agronomy, chemical engineering, microbiology, structural biology, genomics, environmental sciences, and socioeconomics.

Somerville, Chris [Director, Energy Biosciences Institute

2011-04-28T23:59:59.000Z

287

Design, Synthesis and Affinity Properties of Biologically Active Peptide and Protein Conjugates of Cotton Cellulose  

SciTech Connect (OSTI)

The formation of peptide and protein conjugates of cellulose on cotton fabrics provides promising leads for the development of wound healing, antibacterial, and decontaminating textiles. An approach to the design, synthesis, and analysis of bioconjugates containing cellulose peptide and protein conjugates includes: 1) computer graphic modeling for a rationally designed structure; 2) attachment of the peptide or protein to cotton cellulose through a linker amino acid, and 3) characterization of the resulting bioconjugate. Computer graphic simulation of protein and peptide cellulose conjugates gives a rationally designed biopolymer to target synthetic modifications to the cotton cellulose. Techniques for preparing these types of conjugates involve both sequential assembly of the peptide on the fabric and direct crosslinking of the peptide or protein as cellulose bound esters or carboxymethylcellulose amides.

Edwards, J. V.; Goheen, Steven C.

2002-11-30T23:59:59.000Z

288

Hydrogenated amorphous silicon films prepared by glow discharge of disilane  

SciTech Connect (OSTI)

This report describes the results of an investigation of the properties of hydrogenated amorphous silicon films and the efficiency of amorphous silicon solar cells deposited from disilane at rates of 1.5 nanometers/second or greater. The study was divided into two parts, investigation of basic materials properties of hydrogenated amorphous silicon thin films and the fabrication of glass-P-I-N-metal solar cells. The thin film materials properties investigated included the dark conductivity, photoconductivity, dihydride/monohydride concentration ratio, activation energy, and mobility-lifetime product. Hydrogenated amorphous silicon solar cells were fabricated with an intrinsic layer which was deposited at 1.5 nanometers/second. The absolute and reverse bias quantum yields were measured and solar cell efficiencies of 5% were achieved. Attempts to increase the efficiency by reverse bias annealing are also reported. 7 refs., 27 figs.

Wiesmann, H.J. (UHT Corp., Dobbs Ferry, NY (USA))

1990-01-01T23:59:59.000Z

289

Theory and simulation of amorphous organic electronic devices  

E-Print Network [OSTI]

The electronic properties of amorphous organic thin films are of great interest due to their application in devices such as light emitting devices, solar cells, photodetectors, and lasers. Compared to conventional inorganic ...

Madigan, Conor (Conor Francis), 1978-

2006-01-01T23:59:59.000Z

290

RF Sputtering for preparing substantially pure amorphous silicon monohydride  

DOE Patents [OSTI]

A process for controlling the dihydride and monohydride bond densities in hydrogenated amorphous silicon produced by reactive rf sputtering of an amorphous silicon target. There is provided a chamber with an amorphous silicon target and a substrate therein with the substrate and the target positioned such that when rf power is applied to the target the substrate is in contact with the sputtering plasma produced thereby. Hydrogen and argon are fed to the chamber and the pressure is reduced in the chamber to a value sufficient to maintain a sputtering plasma therein, and then rf power is applied to the silicon target to provide a power density in the range of from about 7 watts per square inch to about 22 watts per square inch to sputter an amorphous silicon hydride onto the substrate, the dihydride bond density decreasing with an increase in the rf power density. Substantially pure monohydride films may be produced.

Jeffrey, Frank R. (Ames, IA); Shanks, Howard R. (Ames, IA)

1982-10-12T23:59:59.000Z

291

Amorphous Iron(III) OxideA Review  

Science Journals Connector (OSTI)

The syntheses of amorphous Fe2O3 nanoparticles of varying size and morphology, their magnetic properties, crystallization mechanism, and applications are reviewed herein. The synthetic routes are classified according to the nature of the sample (powders, ...

Libor Machala; Radek Zboril; Aharon Gedanken

2007-04-03T23:59:59.000Z

292

Atomistic simulations of radiation damage in amorphous metal alloys  

E-Print Network [OSTI]

While numerous fundamental studies have characterized the atomic-level radiation response mechanisms in irradiated crystalline alloys, comparatively little is known regarding the mechanisms of radiation damage in amorphous ...

Baumer, Richard E. (Richard Edward)

2013-01-01T23:59:59.000Z

293

Electrodeposition of amorphous matrix Ni-W/Wp̳ composites  

E-Print Network [OSTI]

An amorphous Ni-W alloy matrix was incorporated with W particulate through two types of electrodeposition. The plating bath for the electrodeposition contained nickel sulfate, sodium tungstate, sodium citrate, ammonium ...

Jenket, Donald R. (Donald Robert)

2005-01-01T23:59:59.000Z

294

A Probabilistic Inventory Analysis of Biomass for the State of Texas for Cellulosic Ethanol  

E-Print Network [OSTI]

, bioenergy from second generation cellulosic feedstocks cost more than fossil fuels. Another issue in dealing with corn grain as the feedstock for ethanol is that corn is used for food and livestock feed. The cellulosic process takes cellulosic material... Assessment and Utilization Options for Three Counties in Eastern Oregon? which was prepared by McNeil Technologies (2003); ?Biomass Inventory and Bioenergy Assessment: An evaluation of Organic Material Resources for Bioenergy Production in Washington State...

Gleinser, Matthew A.

2010-01-16T23:59:59.000Z

295

Direct sulfur recovery during sorbent regeneration. Final report  

SciTech Connect (OSTI)

The objective of this research project was to improve the direct elemental sulfur yields that occur during the regeneration of SO{sub 2}-saturated MgO-vermiculite sorbents (MagSorbents) by examining three approaches or strategies. The three approaches were regeneration-gas recycle, high-pressure regeneration, and catalytic reduction of the SO{sub 2} gas using a new catalyst developed by Research Triangle Institute (RTI). Prior to the project, Sorbent Technologies Corporation (Sorbtech) had developed a sorbent-regeneration process that yielded directly a pure elemental sulfur product. In the process, typically about 25 to 35 percent of the liberated S0{sub 2} was converted directly to elemental sulfur. The goal of this project was to achieve a conversion rate of over 90 percent. Good success was attained in the project. About 90 percent or more conversion was achieved with two of the approaches that were examined, regeneration-gas recycle and use of the RTI catalyst. Of these approaches, regeneration-gas recycle gave the best results (essentially 100 percent conversion in some cases). In the regeneration-gas recycle approach, saturated sorbent is simply heated to about 750{degree}C in a reducing gas (methane) atmosphere. During heating, a gas containing elemental sulfur, water vapor, H{sub 2}S, S0{sub 2}, and C0{sub 2} is evolved. The elemental sulfur and water vapor in the gas stream are condensed and removed, and the remaining gas is recycled back through the sorbent bed. After several recycles, the S0{sub 2} and H{sub 2}S completely disappear from the gas stream, and the stream contains only elemental sulfur, water vapor and C0{sub 2}.

Nelson, S.G.; Little, R.C. [Sorbent Technologies Corp., Twinsburg, OH (United States)

1993-08-01T23:59:59.000Z

296

Hall-Effect in Amorphous La1-Xgax Foils  

E-Print Network [OSTI]

, but to date no calculations exist which predict this for liquid or amorphous La. The temperature dependence is also anomalous but so is that of cry- stalline La. More precise measurements of RII for this system are desirable. We are considering..., but to date no calculations exist which predict this for liquid or amorphous La. The temperature dependence is also anomalous but so is that of cry- stalline La. More precise measurements of RII for this system are desirable. We are considering...

COLTER, PC; Adair, Thomas W.; Naugle, Donald G.

1979-01-01T23:59:59.000Z

297

PROCESS DEVELOPMENT STUDIES ON THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL  

E-Print Network [OSTI]

60,700 ETHANOL RECOVERY Dist. Column CondenserF2 Steam Exchanger Ethanol Absorber 10 ft. diameter. 38Cellulose and Production of Ethanol," Progress Report, LBL-

Wilke, Charles R.

2011-01-01T23:59:59.000Z

298

PROCESS DEVELOPMENT STUDIES ON THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL  

E-Print Network [OSTI]

BIOCONVERSION TO SUGARS AND ETHANOL BERKELEY PROGRAM--JulyXylose Fermentation to Ethanol (a) (b) Fusarium oxysporum (OF CELLULOSE AND PRODUCTION OF ETHANOL under auspices of

Wilke, C.R.

2011-01-01T23:59:59.000Z

299

PROCESS DEVELOPMENT STUDIES ON THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL  

E-Print Network [OSTI]

13 Javier Perez I II. ETHANOL FERMENTATION STUDIES A. B.Development Studies of Ethanol Production--------------- 19of Cellulose and Production of Ethanol." (June 1979) and (b)

Wilke, Charles R.

2012-01-01T23:59:59.000Z

300

PROCESS DEVELOPMENT STUDIES OF THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL  

E-Print Network [OSTI]

OF CELLULOSE AND PRODUCTION OF ETHANOL Charles R. Wilke andEconomic Evaluation of Hydrolysis and Ethanol Fermentationa kinetic equation for ethanol production along with design

Wilke, Charles R.

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

The Potential of Cellulosic Ethanol Production from Municipal Solid Waste: A Technical and Economic Evaluation  

E-Print Network [OSTI]

key to unlocking low-cost cellulosic ethanol. 2(1):26-40.1995 19941216. Commercial ethanol production process.facility and commercial ethanol production process.

Shi, Jian; Ebrik, Mirvat; Yang, Bin; Wyman, Charles E.

2009-01-01T23:59:59.000Z

302

Cellulosic biomass could help meet California’s transportation fuel needs  

E-Print Network [OSTI]

strides in the conversion of biomass to ethanol. Americancostly op- eration in the conversion of biomass to ethanol,The biological conversion of cellulosic biomass to ethanol

Wyman, Charles E.; Yang, Bin

2009-01-01T23:59:59.000Z

303

Forest Biomass and Lignocellulosic Materials Forest-derived biopolymers lignin and cellulose  

E-Print Network [OSTI]

Forest Biomass and Lignocellulosic Materials Forest-derived biopolymers lignin and cellulose of sustainable products such as nanocellulose and biocomposites from forest biomass; biorefining to develop high

Li, Mo

304

Cellulosic biomass could help meet California’s transportation fuel needs  

E-Print Network [OSTI]

t uels Cellulosic biomass could help * meet California’smeasures are needed to help overcome the per- ceived risksrun; addition of the word "help." Laboratories at the Center

Wyman, Charles E.; Yang, Bin

2009-01-01T23:59:59.000Z

305

The Effect of Cellulose Crystal Structure and Solid-State Morphology on the Activity of Cellulases  

SciTech Connect (OSTI)

Consistent with the US-DOE and USDA “Roadmap” objective of producing ethanol and chemicals from cellulosic feedstocks more efficiently, a three year research project entitled “The Effect of Cellulose Crystal Structure and Solid-State Morphology on the Activity of Cellulases” was initiated in early 2003 under DOE sponsorship (Project Number DE-FG02-02ER15356). A three year continuation was awarded in June 2005 for the period September 15, 2005 through September 14, 2008. The original goal of this project was to determine the effect of cellulose crystal structure, including allomorphic crystalline form (Cellulose I, II, III, IV and sub-allomorphs), relative degree of crystallinity and crystallite size, on the activity of different types of genetically engineered cellulase enzymes to provide insight into the mechanism and kinetics of cellulose digestion by “pure” enzymes rather than complex mixtures. We expected that such information would ultimately help enhance the accessibility of cellulose to enzymatic conversion processes thereby creating a more cost-effective commercial process yielding sugars for fermentation into ethanol and other chemical products. Perhaps the most significant finding of the initial project phase was that conversion of native bacterial cellulose (Cellulose I; BC-I) to the Cellulose II (BC-II) crystal form by aqueous NaOH “pretreatment” provided an increase in cellulase conversion rate approaching 2-4 fold depending on enzyme concentration and temperature, even when initial % crystallinity values were similar for both allomorphs.

Stipanovic, Arthur J [SUNY College of Environmental Science and Forestry

2014-11-17T23:59:59.000Z

306

Variable-amplitude oscillatory shear response of amorphous materials  

E-Print Network [OSTI]

Variable-amplitude oscillatory shear tests are emerging as powerful tools to investigate and quantify the nonlinear rheology of amorphous solids, complex fluids and biological materials. Quite a few recent experimental and atomistic simulation studies demonstrated that at low shear amplitudes, an amorphous solid settles into an amplitude- and initial conditions-dependent dissipative limit cycle, in which back-and-forth localized particle rearrangements periodically bring the system to the same state. At sufficiently large shear amplitudes, the amorphous system loses memory of the initial conditions, exhibits chaotic particle motions accompanied by diffusive behavior and settles into a stochastic steady-state. The two regimes are separated by a transition amplitude, possibly characterized by some critical-like features. Here we argue that these observations support some of the physical assumptions embodied in the nonequilibrium thermodynamic, internal-variables based, Shear-Transformation-Zone model of amorphous visco-plasticity; most notably that "flow defects" in amorphous solids are characterized by internal states between which they can make transitions, and that structural evolution is driven by dissipation associated with plastic deformation. We present a rather extensive theoretical analysis of the thermodynamic Shear-Transformation-Zone model for a variable-amplitude oscillatory shear protocol, highlighting its success in accounting for various experimental and simulational observations, as well as its limitations. Our results offer a continuum-level theoretical framework for interpreting the variable-amplitude oscillatory shear response of amorphous solids and may promote additional developments.

Nathan Perchikov; Eran Bouchbinder

2014-04-13T23:59:59.000Z

307

The jiaoyao1 Mutant Is an Allele of korrigan1 That Abolishes Endoglucanase Activity and Affects the Organization of Both Cellulose Microfibrils and Microtubules in Arabidopsis  

Science Journals Connector (OSTI)

...the unsynchronized rate of individual elementary cellulose synthesis and the abrupt disruption...Pelletier, S., and Hofte, H. (2002). Resistance against herbicide isoxaben and cellulose...Modifications of cellulose synthase confer resistance to isoxaben and thiazolidinone herbicides...

Lei Lei; Tian Zhang; Richard Strasser; Christopher M. Lee; Martine Gonneau; Lukas Mach; Samantha Vernhettes; Seong H. Kim; Daniel J. Cosgrove; Shundai Li; Ying Gu

2014-06-24T23:59:59.000Z

308

Amorphous silicon-carbon alloys and amorphous carbon from direct methane and ethylene activation by ECR  

SciTech Connect (OSTI)

Hydrogenated amorphous silicon-carbon alloys are prepared using electron-cyclotron resonance (ECR) plasma-enhanced chemical vapor deposition. Hydrogen is introduced into the source resonance cavity as an excitation gas. Silane is introduced in the main chamber in the vicinity of the plasma stream, whereas the carbon source gases, methane or ethylene, are introduced either with the silane or with the hydrogen as excitation gases. The effect of the type of carbon-source gas, excitation gas mixture and silane-to-carbon source gas flow ratio on the deposition rate, bandgap, subgap density of states, spin density and hydrogen evolution are studied.

Conde, J.P.; Chu, V.; Giorgis, F.; Pirri, C.F.; Arekat, S.

1997-07-01T23:59:59.000Z

309

Enhanced regeneration of degraded polymer solar cells by thermal annealing  

SciTech Connect (OSTI)

The degradation and thermal regeneration of poly(3-hexylethiophene) (P3HT):[6,6]-phenyl-C{sub 61}-butyric acid methyl ester (PCBM) and P3HT:indene-C{sub 60} bisadduct (ICBA) polymer solar cells, with Ca/Al and Ca/Ag cathodes and indium tin oxide/poly(ethylene-dioxythiophene):polystyrene sulfonate anode have been investigated. Degradation occurs via a combination of three primary pathways: (1) cathodic oxidation, (2) active layer phase segregation, and (3) anodic diffusion. Fully degraded devices were subjected to thermal annealing under inert atmosphere. Degraded solar cells possessing Ca/Ag electrodes were observed to regenerate their performance, whereas solar cells having Ca/Al electrodes exhibited no significant regeneration of device characteristics after thermal annealing. Moreover, the solar cells with a P3HT:ICBA active layer exhibited enhanced regeneration compared to P3HT:PCBM active layer devices as a result of reduced changes to the active layer morphology. Devices combining a Ca/Ag cathode and P3HT:ICBA active layer demonstrated ?50% performance restoration over several degradation/regeneration cycles.

Kumar, Pankaj, E-mail: pankaj@mail.nplindia.ernet.in [CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012 (India); Centre for Organic Electronics, Physics, University of Newcastle, Callaghan NSW-2308 (Australia); Bilen, Chhinder; Zhou, Xiaojing; Belcher, Warwick J.; Dastoor, Paul C., E-mail: Paul.Dastoor@newcastle.edu.au [Centre for Organic Electronics, Physics, University of Newcastle, Callaghan NSW-2308 (Australia); Feron, Krishna [Centre for Organic Electronics, Physics, University of Newcastle, Callaghan NSW-2308 (Australia); CSIRO Energy Technology, P. O. Box 330, Newcastle NSW 2300 (Australia)

2014-05-12T23:59:59.000Z

310

Crystal Structure and Hydrogen-Bonding System in Cellulose I? from Synchrotron X-ray and Neutron Fiber Diffraction  

Science Journals Connector (OSTI)

The crystal and molecular structure together with the hydrogen-bonding system in cellulose I? has been determined using synchrotron and neutron diffraction data recorded from oriented fibrous samples prepared by aligning cellulose microcrystals from ...?

Yoshiharu Nishiyama; Paul Langan; Henri Chanzy

2002-07-10T23:59:59.000Z

311

How biomass is born: understanding cellulose synthesis for second generation Nadav Sorek, Energy Biosciences Institute, UC Berkeley, USA  

E-Print Network [OSTI]

How biomass is born: understanding cellulose synthesis for second generation biofuels Nadav Sorek, Energy Biosciences Institute, UC Berkeley, USA Lignocellulosic biofuels, also known as second generation utilization of cellulose in terms of energy production. . #12;

Shamir, Ron

312

Fuel-Borne Catalyst Assisted DPF regeneration on a Renault truck...  

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

Catalyst Assisted DPF regeneration on a Renault truck MD9 Engine Outfitted with SCR Fuel-Borne Catalyst Assisted DPF regeneration on a Renault truck MD9 Engine Outfitted...

313

Use of a Diesel Fuel Processor for Rapid and Efficient Regeneration...  

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

Use of a Diesel Fuel Processor for Rapid and Efficient Regeneration of Single Leg NOx Adsorber Systems Use of a Diesel Fuel Processor for Rapid and Efficient Regeneration of Single...

314

Restoration of visual function following optic nerve regeneration in bluegill ~Lepomis macrochirus!  

E-Print Network [OSTI]

Restoration of visual function following optic nerve regeneration in bluegill ~Lepomis macrochirus with morphological examination to assess restoration of visual function following optic nerve crush in bluegill ~Lepomis macrochirus! pumpkinseed ~Lepomis gibbosus! hybrid sunfish. Regenerating optic nerve axons

Mensinger, Allen F.

315

Cellular and genetic mechanisms of new tissue production in the regenerating planarian Schmidtea mediterranea  

E-Print Network [OSTI]

Regeneration of missing body parts is biologically fascinating, yet poorly understood. Many instances of regeneration, such as the replacement of amphibian limbs or planarian heads, require both a source for new cellular ...

Wagner, Daniel Elger

2012-01-01T23:59:59.000Z

316

Imaging studies of peripheral nerve regeneration induced by porous collagen biomaterials  

E-Print Network [OSTI]

There is urgent need to develop treatments for inducing regeneration in injured organs. Porous collagen-based scaffolds have been utilized clinically to induce regeneration in skin and peripheral nerves, however still there ...

Tzeranis, Dimitrios Spyridon

2013-01-01T23:59:59.000Z

317

Molecular mechanisms of regeneration initiation and dorsal-ventral patterning in planarians  

E-Print Network [OSTI]

Regeneration is widespread among animals, yet very little is known about the molecular mechanisms that govern regenerative processes. Planarians have emerged in recent years as a powerful model for studying regeneration ...

Gaviño, Michael A. (Michael Alexander)

2013-01-01T23:59:59.000Z

318

Performance of a Stirling engine regenerator having finite mass  

SciTech Connect (OSTI)

The performance of a Stirling engine regenerator subjected to sinusoidal mass flow rate and pressure variation is analyzed. It is shown that cyclic variations in the temperature of the matrix due to its finite mass lead to an increase in the apparent regenerator effectiveness, but a decrease in engine power. Approximate closed-form expressions for both of these effects are deduced. The results of this analysis are compared with the predictions of a finite-element system model, and good agreement is found.

Jones, J.D.

1986-10-01T23:59:59.000Z

319

Carbonaceous adsorbent regeneration and halocarbon displacement by hydrocarbon gases  

DOE Patents [OSTI]

This invention describes a process for regeneration of halocarbon bearing carbonaceous adsorbents through which a carbonaceous adsorbent is contacted with hydrocarbon gases, preferably propane, butane and pentane at near room temperatures and at atmospheric pressure. As the hydrocarbon gases come in contact with the adsorbent, the hydrocarbons displace the halocarbons by physical adsorption. As a result of using this process, the halocarbon concentration and the hydrocarbon eluant is increased thereby allowing for an easier recovery of pure halocarbons. By using the process of this invention, carbonaceous adsorbents can be regenerated by an inexpensive process which also allows for subsequent re-use of the recovered halocarbons. 8 figures.

Senum, G.I.; Dietz, R.N.

1994-04-05T23:59:59.000Z

320

Carbonaceous adsorbent regeneration and halocarbon displacement by hydrocarbon gases  

DOE Patents [OSTI]

This invention describes a process for regeneration of halocarbon bearing carbonaceous adsorbents through which a carbonaceous adsorbent is contacted with hydrocarbon gases, preferably propane, butane and pentane at near room temperatures and at atmospheric pressure. As the hydrocarbon gases come in contact with the adsorbent, the hydrocarbons displace the halocarbons by physical adsorption. As a result of using this process, the halocarbon concentration and the hydrocarbon eluant is increased thereby allowing for an easier recovery of pure halocarbons. By using the process of this invention, carbonaceous adsorbents can be regenerated by an inexpensive process which also allows for subsequent re-use of the recovered halocarbons.

Senum, Gunnar I. (Patchogue, NY); Dietz, Russell N. (Patchogue, NY)

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Analysis of an imperfectly competitive cellulosic biofuel supply chain  

Science Journals Connector (OSTI)

Abstract We study the strategic behavior in an imperfectly competitive cellulosic biofuel supply chain. An optimization-based supply chain model is used to obtain long-run planning outcomes, based on which we develop market models considering both perfect and imperfect competitions. The equilibrium among stakeholders in the multi-echelon supply chain can be obtained by solving a collection of first-order conditions associated with their profit-maximization problems. For the imperfect competition, the model, additionally, allows firms with significant market share at different segment of the supply chain to exercise market power. We apply the models to an illustrative case study of California.

Yongxi Huang; Yihsu Chen

2014-01-01T23:59:59.000Z

322

Supramolecular Composite Materials from Cellulose, Chitosan, and Cyclodextrin: Facile Preparation and Their Selective Inclusion  

E-Print Network [OSTI]

Supramolecular Composite Materials from Cellulose, Chitosan, and Cyclodextrin: Facile Preparation-performance supramolecular polysaccharide composites from cellulose (CEL), chitosan (CS), and (2,3,6-tri to dissolve and prepare the composites. Because a majority (>88%) of the IL used was recovered for reuse

Reid, Scott A.

323

Investigation of Lignin Deposition on Cellulose During Hydrothermal Pretreatment, Its Effect on  

E-Print Network [OSTI]

Investigation of Lignin Deposition on Cellulose During Hydrothermal Pretreatment, Its Effect Ridge, Tennessee ABSTRACT: In dilute acid pretreatment of lignocellulosic biomass, lignin has been shown formed by hydrothermal pretreatment of a mixture of Avicel cellulose and poplar wood showed that lignin

California at Riverside, University of

324

Cellulose nanocrystal from pomelo (C. Grandis osbeck) albedo: Chemical, morphology and crystallinity evaluation  

SciTech Connect (OSTI)

Citrus peel is one of the under-utilized waste materials that have potential in producing a valuable fibre, which are cellulose and cellulose nanocrystal. Cellulose was first isolated from pomelo (C. Grandis Osbeck) albedo by combination of alkali treatment and bleaching process, followed by acid hydrolysis (65% H{sub 2}SO{sub 4}, 45 °C, 45min) to produce cellulose nanocrystal. The crystalline, structural, morphological and chemical properties of both materials were studied. Result reveals the crystallinity index obtained from X-ray diffraction for cellulose nanocrystal was found higher than extracted cellulose with the value of 60.27% and 57.47%, respectively. Fourier transform infrared showed that the chemical treatments removed most of the hemicellulose and lignin from the pomelo albedo fibre. This has been confirmed further by SEM and TEM for their morphological studies. These results showed that cellulose and cellulose nanocrystal were successfully obtained from pomelo albedo and might be potentially used in producing functional fibres for food application.

Zain, Nor Fazelin Mat; Yusop, Salma Mohamad [Food Science Program, School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Selangor (Malaysia); Ahmad, Ishak [Polymer Research Centre (PORCE), School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Selangor (Malaysia)

2013-11-27T23:59:59.000Z

325

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

326

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

327

The self-heating of damp cellulosic materials: I. High thermal conductivity and diffusivity  

Science Journals Connector (OSTI)

......self-heating of damp cellulosic materials: I. High thermal conductivity...stockpiles of cellulosic materials are analysed. The model...distinct bifurcation diagrams. In particular it is...stockpile sizes for materials prone to self-heating...surfaces by breakage on handling. In such circumstances......

R. A. SISSON; A. SWIFT; G. C. WAKE; B. F. GRAY

1992-01-01T23:59:59.000Z

328

Increased enzyme binding to substrate is not necessary for more efficient cellulose hydrolysis  

Science Journals Connector (OSTI)

...desorption, despite high xylan solubilization, which...inactive enzymes from the surface of cellulose is competitive...the increased fibril surface hydrophilicity as confirmed...enzyme binding, cellulose surface chain extraction, and...substrates and chemical treatment methods used are provided in SI...

Dahai Gao; Shishir P. S. Chundawat; Anurag Sethi; Venkatesh Balan; S. Gnanakaran; Bruce E. Dale

2013-01-01T23:59:59.000Z

329

Evaluation of interphase properties in a cellulose fiber-reinforced polypropylene composite by nanoindentation  

E-Print Network [OSTI]

fiber and polypropylene (PP) matrix in a cellulose fiber-reinforced PP composite were investigatedEvaluation of interphase properties in a cellulose fiber-reinforced polypropylene composite of Material Science, University of Tennessee, Knoxville, TN, United States c Metals and Ceramic Division, Oak

Wang, Siqun

330

Cellulose swelling and dissolution as a tool to study the fiber structure  

E-Print Network [OSTI]

­ methylmorpholine N-oxide and water mixtures, or soda solutions) or in ionic liquids are studied. Some cellulose. Key words: cellulose, swelling, dissolution, N ­ methylmorpholine N-oxide, ionic liquids, structure; 1 cells grow (2) . Whatever the origin of the native fiber cells, some common morphological architecture

Boyer, Edmond

331

Nuclear magnetic relaxation dispersion investigations1 of water retention mechanism by cellulose ethers in mortars2  

E-Print Network [OSTI]

Nuclear magnetic relaxation dispersion investigations1 of water retention mechanism by cellulose : 10.1016/j.cemconres.2012.06.002 #12;2 ABSTRACT22 23 We show how nuclear magnetic spin-lattice relaxation dispersion of protons-water24 (NMRD) can be used to elucidate the effect of cellulose ethers

Boyer, Edmond

332

Hydrogen production from cellulose in a two-stage process combining fermentation and electrohydrogenesis  

E-Print Network [OSTI]

Hydrogen production from cellulose in a two-stage process combining fermentation primarily of: acetic, lactic, succinic, and formic acids and ethanol. An additional 800 Ã? 290 mL H2/g #12;1. Introduction Biohydrogen production from cellulose has received consid- erable attention

333

Effects of Diesel Exhaust Emissions on Soot Oxidation and DPF Regeneration  

Broader source: Energy.gov [DOE]

DPF regeneration experiments verified the effects of NO2 and O2 emissions found from the thermogravimetric analyzer soot oxidation.

334

Chapter 3 - Emerging Catalysis for 5-HMF Formation from Cellulosic Carbohydrates  

Science Journals Connector (OSTI)

Abstract The main fundamental building blocks of cellulosic biomass are C-6 carbohydrates followed by C-5 carbohydrates. 5-hydroxymethylfurfural (5-HMF) is a potential platform chemical from C-6 carbohydrates for the production of renewable fuels and chemicals. Converting glucose to 5-HMF is a critical step in the utilization of cellulosic biomass because ?-d-glucose is the fundamental building block of cellulose polymer. The current understanding of the mechanisms involved in glucose isomerization to fructose and subsequent dehydration to 5-HMF in different solvents is presented and discussed. New breakthroughs in catalytic systems efficient for the isomerization between aldohexose and ketohexose are reviewed, with a focus on the mechanistic understanding. One of the challenges of cellulosic biomass utilization by a catalytic system is the presence of a large variety of and often in high loadings of minerals. Understanding the effects of the minerals or other contaminants is emphasized. Keywords 5-HMF, Platform chemicals, Cellulose, Carbohydrates

Z. Conrad Zhang

2013-01-01T23:59:59.000Z

335

Simplified optoelectronic 3R regenerator using nonlinear electro-optical transformation in an  

E-Print Network [OSTI]

Simplified optoelectronic 3R regenerator using nonlinear electro-optical transformation: A simplified optoelectronic 3R regenerator without electrical signal processing is demonstrated by utilizing 80000 km dispersion shifted fibre using compact opto-electronic-3R regeneration," in Proc. European

Bowers, John

336

Lasing modes in polycrystalline and amorphous photonic structures  

SciTech Connect (OSTI)

We systematically studied the lasing characteristics in photonic polycrystalline and amorphous structures. 2D arrays of air holes were fabricated in a GaAs membrane. InAs quantum dots embedded in the membrane provide gain for lasing under optical pumping. The lasing modes are spatially localized, and blue shift as the structural order becomes short ranged. Our three-dimensional numerical simulations reveal that the out-of-plane leakage of the lasing mode dominates over the in-plane leakage. The lasing modes in a photonic polycrystalline move away from the center frequency of the photonic band gap to reduce the out-of-plane leakage. In a photonic amorphous structure, the short-range order improves optical confinement and enhances the quality factor of resonances. Understanding the behavior of photonic polycrystalline laser and amorphous laser opens the possibility of controlling lasing characteristic by varying the degree of structural order.

Yang, Jin-Kyu [Department of Applied Physics, Yale University, New Haven, Connecticut 06520 (United States); Department of Optical Engineering, Kongju National University, Kongju 314-701 (Korea, Republic of); Noh, Heeso; Liew, Seng Fatt; Rooks, Michael J. [Department of Applied Physics, Yale University, New Haven, Connecticut 06520 (United States); Solomon, Glenn S. [Joint Quantum Institute, NIST and University of Maryland, Gaithersburg, Maryland 20899 (United States); Cao Hui [Department of Applied Physics, Yale University, New Haven, Connecticut 06520 (United States); Department of Physics, Yale University, New Haven, Connecticut 06520 (United States)

2011-09-15T23:59:59.000Z

337

Dye Regeneration Kinetics in Dye-Sensitized Solar Cells  

Science Journals Connector (OSTI)

Nevertheless, the calculated diffusion limit provides a useful estimate of the maximum attainable regeneration rate. ... Design of Organic Dyes and Cobalt Polypyridine Redox Mediators for High-Efficiency Dye-Sensitized Solar Cells ... cells are discussed, considering the high photovoltaic efficiencies obtained for devices employing Ru bipyridyl sensitizer dyes in combination with iodide/tri-iodide based redox electrolytes. ...

Torben Daeneke; Attila J. Mozer; Yu Uemura; Satoshi Makuta; Monika Fekete; Yasuhiro Tachibana; Nagatoshi Koumura; Udo Bach; Leone Spiccia

2012-09-27T23:59:59.000Z

338

RESEARCH ARTICLE Open Access The zebrafish heart regenerates after cryoinjury-  

E-Print Network [OSTI]

myocardial infarction, commonly known as a heart attack, which causes muscle cell death due to lack of oxyRESEARCH ARTICLE Open Access The zebrafish heart regenerates after cryoinjury- induced myocardial: In humans, myocardial infarction is characterized by irreversible loss of heart tissue, which becomes

339

Natural Regeneration in Relation to Environment in the  

E-Print Network [OSTI]

Natural Regeneration in Relation to Environment in the Mixed Conifer Forest Type of California H. A in the mixed conifer forest type of California. Berkeley, Calif., Pacific SW. Forest & Range Expt. Sta. 14 pp conifer forest type of California. Berkeley, Calif., Pacific SW. Forest & Range Expt. Sta. 14 pp., illus

Standiford, Richard B.

340

Studies on flow resistance of regenerator in Stirling engine  

SciTech Connect (OSTI)

Studies on flow resistance of regenerator in Stirling engine are to be reported. The purpose of this study is to measure the flow resistance of regenerator in oscillating flow condition, compare with the results of previous studies and examine whether the friction factor changes between accelerating period and decelerating period of the oscillation cycle. New experimental apparatus for measurement of flow resistance of regenerator element was designed and built. Using semiconductor pressure transducer, instantaneous pressure drops during many oscillation cycle were measured. As regenerator elements, layer of usual mesh and packed mesh were used. It was clear that friction factor of usual mesh, obtained from maximum values of pressure drops in oscillation cycle, lay between two previous studies, while friction factor of packed mesh became higher than the previous studies. Also it became obvious that friction factor did not change between accelerating period and decelerating period of oscillation cycle under revolution speed of 100 rpm, while over 200 rpm, friction factor in decelerating period became higher than in accelerating period at same lower Reynolds number.

Sakano, Akira; Isshiki, Seita; Ushiyama, Izumi [Ashikaga Inst. of Technology, Ashikaga, Tochigi (Japan). Dept. of Mechanical Engineering

1995-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Amorphous Alloy Membranes for High Temperature Hydrogen Separation  

SciTech Connect (OSTI)

At the beginning of this project, thin film amorphous alloy membranes were considered a nascent but promising new technology for industrial-scale hydrogen gas separations from coal- derived syngas. This project used a combination of theoretical modeling, advanced physical vapor deposition fabricating, and laboratory and gasifier testing to develop amorphous alloy membranes that had the potential to meet Department of Energy (DOE) targets in the testing strategies outlined in the NETL Membrane Test Protocol. The project is complete with Southwest Research Institute® (SwRI®), Georgia Institute of Technology (GT), and Western Research Institute (WRI) having all operated independently and concurrently. GT studied the hydrogen transport properties of several amorphous alloys and found that ZrCu and ZrCuTi were the most promising candidates. GT also evaluated the hydrogen transport properties of V, Nb and Ta membranes coated with different transition-metal carbides (TMCs) (TM = Ti, Hf, Zr) catalytic layers by employing first-principles calculations together with statistical mechanics methods and determined that TiC was the most promising material to provide catalytic hydrogen dissociation. SwRI developed magnetron coating techniques to deposit a range of amorphous alloys onto both porous discs and tubular substrates. Unfortunately none of the amorphous alloys could be deposited without pinhole defects that undermined the selectivity of the membranes. WRI tested the thermal properties of the ZrCu and ZrNi alloys and found that under reducing environments the upper temperature limit of operation without recrystallization is ~250 °C. There were four publications generated from this project with two additional manuscripts in progress and six presentations were made at national and international technical conferences. The combination of the pinhole defects and the lack of high temperature stability make the theoretically identified most promising candidate amorphous alloys unsuitable for application as hydrogen separation membranes in coal fire systems.

Coulter, K

2013-09-30T23:59:59.000Z

342

A transparent ultraviolet triggered amorphous selenium p-n junction  

SciTech Connect (OSTI)

This paper will introduce a semitransparent amorphous selenium (a-Se) film exhibiting photovoltaic effects under ultraviolet light created through a simple and inexpensive method. We found that chlorine can be doped into a-Se through electrolysis of saturated salt water, and converts the weak p-type material into an n-type material. Furthermore, we found that a p-n diode fabricated through this process has shown an open circuit voltage of 0.35 V toward ultraviolet illumination. Our results suggest the possibility of doping control depending on the electric current during electrolysis and the possibility of developing a simple doping method for amorphous photoconductors.

Saito, Ichitaro; Soga, Kenichi; Overend, Mauro; Amaratunga, Gehan A. J. [Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA (United Kingdom); Miyazaki, Wataru; Onishi, Masanori; Masuzawa, Tomoaki; Okano, Ken [Department of Physics, International Christian University, 3-10-2 Osawa Mitaka, Tokyo 181-8585 (Japan); Kudo, Yuki [Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577 (Japan); Yamada, Takatoshi [Nanotube Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan); Koh, Angel; Chua, Daniel [Department of Materials Science and Engineering, National University of Singapore, 21 Lower Kent Ridge Road, Singapore 119077 (Singapore); Aono, Masami [Department of Materials Science and Engineering, National Defense Academy, 1-10-20 Hashirimizu Yokosuka, Kanagawa 239-8686 (Japan)

2011-04-11T23:59:59.000Z

343

Transmissive metallic contact for amorphous silicon solar cells  

DOE Patents [OSTI]

A transmissive metallic contact for amorphous silicon semiconductors includes a thin layer of metal, such as aluminum or other low work function metal, coated on the amorphous silicon with an antireflective layer coated on the metal. A transparent substrate, such as glass, is positioned on the light reflective layer. The metallic layer is preferably thin enough to transmit at least 50% of light incident thereon, yet thick enough to conduct electricity. The antireflection layer is preferably a transparent material that has a refractive index in the range of 1.8 to 2.2 and is approximately 550A to 600A thick.

Madan, A.

1984-11-29T23:59:59.000Z

344

Chemical Bonding In Amorphous Si Coated-carbon Nanotube As Anodes...  

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

Bonding In Amorphous Si Coated-carbon Nanotube As Anodes For Li ion Batteries: A XANES Study. Chemical Bonding In Amorphous Si Coated-carbon Nanotube As Anodes For Li ion...

345

E-Print Network 3.0 - amorphous ferromagnetic semiconductor Sample...  

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

ORDERING AND MAGNETIZATION IN AMORPHOUS Fe-Ge FILMS 0.MASSENET, H. DAVER, Phase Transition Group, Centre... amorphes d'alliages Fe-Ge dont la composition varie de 0 B 75 at. %...

346

E-Print Network 3.0 - as-doped buried amorphous Sample Search...  

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

Amorphous Si A.J. Dent, G. Derst, G.N. Greaves, S. Kalbitzer* and C... Heidelberg, Germany Abstract. Our previous work has concentrated on the recrystallisation of amorphous...

347

Cellules solaires : quelques aspects des structures Schottky base de silicium amorphe hydrogn  

E-Print Network [OSTI]

obtenir des rendements suffisants (~ 10 %) pour une utilisation industrielle. A côté de couples CU2S-CdS hydrogenated amorphous silicon, highly doped hydrogenated amorphous silicon n+ a-Si:H and various metals. We

Paris-Sud XI, Université de

348

Temperature response of 13C atoms in amorphized 6H-SiC. | EMSL  

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

Temperature response of 13C atoms in amorphized 6H-SiC. Temperature response of 13C atoms in amorphized 6H-SiC. Abstract: Implantation of 13C2+ ions was employed to produce a...

349

The Breaking of the Efficiency-Stability-Production Barrier In Amorphous Photovoltaics  

Science Journals Connector (OSTI)

There are three key issues that challenge amorphous photovoltaics, namely, efficiency, stability, and production. ... will review the current status of our amorphous photovoltaics at ECD in terms of these three.....

Stanford R. Ovshinsky; Jeffrey Yang

1991-01-01T23:59:59.000Z

350

E-Print Network 3.0 - amorphous bodies dover Sample Search Results  

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

in temperature dependent amorphization. The H2O-ice's phase was determined using the near infrared... ) band is strong while it is nearly absent in the amorphous spectrum...

351

Application of hydrated salts in two phase two component Stirling engine regenerators  

SciTech Connect (OSTI)

The use of a two phase two component (TPTC) working fluid in a Stirling has been suggested as one method of increasing the power density of a Stirling engine without raising the mean pressure excessively high. Use of such a working fluid, however causes the regenerator to be totally ineffective. This paper discusses the results of a computer study of a new type of regenerator. These results indicate a marked improvement in performance over the normally regenerated TPTC engine and an ideal gas Stirling engine. An initial conceptual design of how the regenerator may be incorporated into a Stirling engine, and a list of possible regenerator materials is given.

Renfroe, D.A.; Ahlert, A.; Counts, M.

1984-08-01T23:59:59.000Z

352

Amorphous and microcrystalline silicon technology--1997. Materials Research Society symposium proceedings, Volume 467  

SciTech Connect (OSTI)

This book was divided into the following parts: Staebler-Wronski and Fundamental Defect Studies in Amorphous Silicon; The Story of Hydrogen in Amorphous Silicon; Photoelectric Properties of Amorphous Silicon; Deposition and Properties of Microcrystalline Silicon; Deposition Studies for Amorphous Silicon and Related Materials; Solar Cells; Thin-Film Transistors; and Sensors and Novel Device Concepts. Separate abstracts were prepared for most of the papers in the volume.

Wagner, S.; Hack, M.; Schiff, E.A.; Schropp, R.; Shimizu, I. [eds.

1997-07-01T23:59:59.000Z

353

Prospects for the use of amorphous semiconductors in solar energy conversion  

Science Journals Connector (OSTI)

... this article, we review some potential applications of amorphous Si in the field of solar energy ...energyconversion ...

J. I. B. Wilson; D. Weaire

1978-09-14T23:59:59.000Z

355

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

356

Phosphate and Organic Acids as Competing Sorbates on Amorphous Aluminum Oxide. (3791)  

E-Print Network [OSTI]

Phosphate and Organic Acids as Competing Sorbates on Amorphous Aluminum Oxide. (3791) Authors: K sorption of P to amorphous aluminum oxides. Alum initially decreases litter pH, so the stability of P was employed to investigate the adsorption of phosphate and oxalate, to synthetic amorphous aluminum hydroxide

Sparks, Donald L.

357

C. -AMORPHOUS METALLIC SYSTEMS. TEMPERATURE DEPENDENCE OF THE ELECTRICAL RESISTIVITY OF  

E-Print Network [OSTI]

C. - AMORPHOUS METALLIC SYSTEMS. TEMPERATURE DEPENDENCE OF THE ELECTRICAL RESISTIVITY OF AMORPHOUS of the electrical resistivity is explained with conduction electrons being scattered by p %. In a previous paper [I] it has been shown that the electrical resistivity of amorphous Ga, Sn and Pb alloys

Paris-Sud XI, Université de

358

Amorphous Silicon as Semiconductor Material for High Resolution LAPS  

E-Print Network [OSTI]

-08 3.E -08 0 200 400 600 800 displacem ent/µµµµm current/A 1000 2000 3000 4000 1000 2000 3000 4000-substrate Amorphous silicon -4 -2 0 2 4 0,2 0,4 0,6 0,8 1,0 photocurrenta.u. gate voltage/V 600µm x 600µm area scan

Moritz, Werner

359

AMORPHOUS SILICON-BASED MINIMODULES WITH SILICONE ELASTOMER ENCAPSULATION  

E-Print Network [OSTI]

fabricated one and two cell, amorphous silicon based mini-modules encapsulated with a modern silicone. The first module consisted of a single cell with a current collecting grid and bus bars on two sides of the cell. The current collecting grid used a spacing of 1 cm. 250 µm diameter tinned copper wire was used

Deng, Xunming

360

Nuclear magnetic resonance studies of hydrogen in amorphous silicon  

SciTech Connect (OSTI)

Proton and deuteron NMR in hydrogenated amorphous silicon yield quantitative measures of species-specific structural configurations and their dynamics. Populations of silicon-bonded and molecular hydrogens correlate with photovoltaic quality, doping, illumination/dark anneal sequences, and with infrared and other characterizations. High quality films contain substantial populations of nanovoid-trapped molecular hydrogen.

Norberg, R.E.; Fedders, P.A.; Leopold, D.J. [Washington Univ., St. Louis, MO (United States). Dept. of Physics

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

FORMATION OF A PHYSICALLY STABLE AMORPHOUS DRUG COMPLEX  

E-Print Network [OSTI]

ABSTRACT In this paper we explore the use of Neusilin, an inorganic magnesium aluminometasilicate, to stabilize the amorphous form of an acidic drug a neutral drug and two basic drugs. Both cryomilling and ball milling of the drug with Neusilin were...

MacLean, Jenifer Anne

2010-12-16T23:59:59.000Z

362

Torque magnetometry of an amorphous-alumina/strontium-titanate interface  

E-Print Network [OSTI]

We report torque magnetometry measurements of an oxide heterostructure consisting of an amorphous Al[subscript 2]O[subscript 3] thin film grown on a crystalline SrTiO[subscript 3] substrate (a-AO/STO) by atomic layer ...

Lee, S. W.

363

Conducting polymer and hydrogenated amorphous silicon hybrid solar cells  

E-Print Network [OSTI]

November 2005 An organic-inorganic hybrid solar cell with a p-i-n stack structure has been investigated for their potential in electronic devices such as organic light emitting diodes OLEDs , solar cells, photode- tectorsConducting polymer and hydrogenated amorphous silicon hybrid solar cells Evan L. Williams

Schiff, Eric A.

364

Charge-Density Variation in a Model of Amorphous Silicon  

Science Journals Connector (OSTI)

A population analysis of the one-electron eigenfunctions of random-network models of amorphous silicon shows fluctuations of the net atomic charge of about 0.2 electron units rms. The majority of the charge is calculable from a linear function of the deviations of first-neighbor distance and of the interbond angle from their values in the crystal.

Lester Guttman, W. Y. Ching, and Jagannath Rath

1980-06-09T23:59:59.000Z

365

Assessing Resource Intensity and Renewability of Cellulosic Ethanol Technologies Using Eco-LCA  

Science Journals Connector (OSTI)

Assessing Resource Intensity and Renewability of Cellulosic Ethanol Technologies Using Eco-LCA ... Recognizing the contributions of ecosystem services and the lack of their comprehensive accounting in life cycle assessment (LCA), an in-depth analysis of their contribution in the life cycle of cellulosic ethanol derived from five different feedstocks was conducted, with gasoline and corn ethanol as reference fuels. ... The relative use intensity of natural resources encompassing land and ecosystem goods and services by cellulosic ethanol was estimated using the Eco-LCA framework. ...

Anil Baral; Bhavik R. Bakshi; Raymond L. Smith

2012-01-23T23:59:59.000Z

366

Cellulose hydrolysis in evolving substrate morphologies III: Timescale analysis  

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

Hydrolysis Hydrolysis in Evolving Substrate Morphologies III: Time-Scale Analysis Wen Zhou, 1,2 Ying Xu, 1,2 Heinz-Bernd Schu ¨ ttler 3 1 Computational Systems Biology Lab, Department of Biochemistry and Molecular Biology, Institute of Bioinformatics, University of Georgia, Athens, Georgia; telephone: 706-542-9779; fax: 706-542-9751; e-mail: xyn@bmb.uga.edu 2 BioEnergy Science Center (BESC), Department of Energy (DOE), Oak Ridge, Tennessee 3 Department of Physics and Astronomy, University of Georgia, Athens, Georgia; telephone: 706-542-3886; fax: 706-542-2492; e-mail: hbs@physast.uga.edu Received 11 December 2009; revision received 4 May 2010; accepted 10 May 2010 Published online 1 June 2010 in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/bit.22814 ABSTRACT: We present a time-scale analysis for the enzy- matic hydrolysis of solid cellulosic substrates,

367

Template Synthesis of Nanostructured Metals using Cellulose Nanocrystal  

SciTech Connect (OSTI)

In this chapter, cellulose nanocrystal (CNXL) has been used as a template and reducing agent for synthesizing nanoscale inorganic solids such as metal oxide, metal carbide, and nanocrystalline metals. CNXL selectively nucleates metal or metal oxide phases in ordered arrangements commensurate with the attendant structure and chemistry of the fiber. The reaction has an analogy to the well-known Tollen’s reagent where addition of an aldehyde or glucose analyte to a glass vessel containing a soluble ammoniacal silver complex causes reduction of the silver to form a mirror on the vessel surface. For the synthesis of TiO2, CNXL produced mesoporous anatase with 5-10 nm particle sizes and 170-200 m2/g surface area after air-calcination. Silica-infiltrated CNXL produced very homogeneous SiC nanowires with 70 nm in diameter at 1400 oC in Ar. For the syntheses of metal nanoparticles, upon addition of aqueous metal ion containing solutions (Cu(II), Ni(II), Ag(I), Au(III), Pd(II), Pt(IV), or even selenite, Se(IV)) into the CNXL suspension, reduction to the metal occurs under hydrothermal conditions to form ordered metal nanostructures. Ni (II) and Cu(II) ions required high temperature (300-400 oC) to be reduced due to their low reduction potentials. However, metal ions including Ag(I), Au(III), Pt(IV), Pd(II), Se(IV) needed lower temperatures (160-200 oC) to be reduced. Enhanced catalytic activity on these templated surfaces has been demonstrated for a methylene-blue dye photo-induced decomposition (Se nanocrystals resident on crystalline cellulose).

Shin, Yongsoon; Exarhos, Gregory J.

2009-11-01T23:59:59.000Z

368

Amorphous metal formulations and structured coatings for corrosion and wear resistance  

DOE Patents [OSTI]

A system for coating a surface comprising providing a source of amorphous metal that contains more than 11 elements and applying the amorphous metal that contains more than 11 elements to the surface by a spray. Also a coating comprising a composite material made of amorphous metal that contains more than 11 elements. An apparatus for producing a corrosion-resistant amorphous-metal coating on a structure comprises a deposition chamber, a deposition source in the deposition chamber that produces a deposition spray, the deposition source containing a composite material made of amorphous metal that contains more than 11 elements, and a system that directs the deposition spray onto the structure.

Farmer, Joseph C. (Tracy, CA)

2011-12-13T23:59:59.000Z

369

Amorphous metal formulations and structured coatings for corrosion and wear resistance  

DOE Patents [OSTI]

A system for coating a surface comprising providing a source of amorphous metal that contains more than 11 elements and applying the amorphous metal that contains more than 11 elements to the surface by a spray. Also a coating comprising a composite material made of amorphous metal that contains more than 11 elements. An apparatus for producing a corrosion-resistant amorphous-metal coating on a structure comprises a deposition chamber, a deposition source in the deposition chamber that produces a deposition spray, the deposition source containing a composite material made of amorphous metal that contains more than 11 elements, and a system that directs the deposition spray onto the structure.

Farmer, Joseph C.

2014-07-15T23:59:59.000Z

370

Regenerable Mixed Copper-Iron-Inert Support Oxygen Carriers  

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

Mixed Copper-Iron-Inert Support Oxygen Carriers Mixed Copper-Iron-Inert Support Oxygen Carriers for Solid Fuel Chemical Looping Combustion Process Contact NETL Technology Transfer Group techtransfer@netl.doe.gov December 2012 This patent-pending technology, "Regenerable Mixed Copper-Iron-Inert Support Oxygen Carriers for Solid Fuel Chemical Looping Combustion Process," provides a metal-oxide oxygen carrier for application in fuel combustion processes that use oxygen. This technology is available for licensing and/or further collaborative research with the U.S. Department of Energy's National Energy Technology Laboratory. Overview Patent Details U.S. Non-Provisional Patent Application No. 13/159,553; titled "Regenerable Mixed Copper-Iron-Inert Support Oxygen Carriers for Solid

371

NREL: Continuum Magazine - At $2.15 a Gallon, Cellulosic Ethanol Could Be  

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

At $2.15 a Gallon, Cellulosic Ethanol Could Be Cost Competitive At $2.15 a Gallon, Cellulosic Ethanol Could Be Cost Competitive Issue 5 Print Version Share this resource At $2.15 a Gallon, Cellulosic Ethanol Could Be Cost Competitive DOE challenge met-research advances cut costs to produce fuel from non-food plant sources. A photo showing a silhouette of a man wearing glass in a dark room lit only by a band of light consisting or red, blue, and white dots (26186). Enlarge image In NREL's new Energy Systems Integration Facility, the Insight Collaboration Laboratory shows a 3D model of cellulose microfibrils. Photo by Dennis Schroeder, NREL Imagine a near perfect transportation fuel-it's clean, domestic, abundant, and renewable. Now imagine that it's also affordable. Bringing this vision closer to reality was the challenge the U.S.

372

PROCESS DEVELOPMENT STUDIES ON THE BIOCONVERSION OF CELLULOSE AND PRODUCTION OF ETHANOL  

E-Print Network [OSTI]

OF CELLULOSE AND PRODUCTION OF ETHANOL under auspices of22 Mohammad Riaz ETHANOL FERMENTATION STUDIES II I. A. B.Hydrolyzates to Ethanol J2 Ren-Der Yang

Wilke, C.R.

2011-01-01T23:59:59.000Z

373

Increased enzyme binding to substrate is not necessary for more efficient cellulose hydrolysis  

Science Journals Connector (OSTI)

...ultrastructure, which was reported in a recent review article (1). However, the impact...the Department of Energy Great Lakes Bioenergy Research...based on the values available in the literature for CBH-I acting on cellulose...

Dahai Gao; Shishir P. S. Chundawat; Anurag Sethi; Venkatesh Balan; S. Gnanakaran; Bruce E. Dale

2013-01-01T23:59:59.000Z

374

Energy Department Announces Up to $14 Million for Applying Landscape Design to Cellulosic Bioenergy  

Broader source: Energy.gov [DOE]

The Energy Department today announced up to $14 million to support landscape design approaches that maintain or enhance the environmental and socio-economic sustainability of cellulosic bioenergy through the improvement of feedstock production, logistics systems, and technology development.

375

Breakthrough in Bioenergy: American Process Sells First RIN-qualified Cellulosic Ethanol Shipment  

Broader source: Energy.gov [DOE]

?Imagine powering a plane or car with fuels made from grasses, wood, or other plant residues. This type of fuel, called cellulosic ethanol, has the potential to be a major source of renewable fuel...

376

Graphene for reducing bubble defects and enhancing mechanical properties of graphene/cellulose acetate composite films  

Science Journals Connector (OSTI)

In this study, we have demonstrated a strategy by which graphene was used to reduce the bubble defects and enhance the mechanical properties in graphene/cellulose acetate (Gr/CA) composite films. Mono- and multil...

Lei Liu; Zhigang Shen; Shuaishuai Liang; Min Yi…

2014-01-01T23:59:59.000Z

377

Adsorption and viscoelastic properties of cationic xylan on cellulose film using QCM-D  

Science Journals Connector (OSTI)

The adsorption and viscoelastic properties of cationic xylan layers adsorbed from an aqueous electrolyte solution ... 10, 100 mM) on a cellulose model surface were studied using quartz crystal microbalance with ....

Sang Hoon Lee; Hak Lae Lee; Hye Jung Youn

2014-06-01T23:59:59.000Z

378

The molecular basis of the adsorption of xylans on cellulose surface  

Science Journals Connector (OSTI)

In order to model the adsorption of xylan on cellulose, we have simulated, at ... level, the gas phase adsorption of small xylan fragments having 5 skeletal ? (1 ?...5...), using molecular dynamics simulations. A...

Karim Mazeau; Landry Charlier

2012-04-01T23:59:59.000Z

379

Catalytic transformations of cellulose and its derived carbohydrates into 5-hydroxymethylfurfural, levulinic acid, and lactic acid  

Science Journals Connector (OSTI)

The catalytic transformation of cellulose into key building-block or platform chemicals such as 5-hydoxymethylfurfural (HMF), levulinic acid, and lactic acid under mild conditions, has attracted much attention...

Weiping Deng; Qinghong Zhang; Ye Wang

2014-12-01T23:59:59.000Z

380

Kinetic Study on the Acid-Catalyzed Hydrolysis of Cellulose to Levulinic Acid  

Science Journals Connector (OSTI)

A variety of interesting bulk chemicals is accessible by the acid-catalyzed hydrolysis of cellulose. An interesting example is levulinic acid, a versatile precursor for fuel additives, polymers, and resins. A detailed kinetic study on the acid-catalyzed ...

B. Girisuta; L. P. B. M. Janssen; H. J. Heeres

2007-02-13T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

DuPont’s Journey to Build a Global Cellulosic BioFuel Business Enterprise  

Broader source: Energy.gov [DOE]

Plenary I: Progress in Advanced Biofuels DuPont’s Journey to Build a Global Cellulosic BioFuel Business Enterprise William Provine, Director–Science and Technology External Affairs, DuPont

382

Utilization of Vinegar for Isolation of Cellulose Producing Acetic Acid Bacteria  

SciTech Connect (OSTI)

Wastes of traditionally fermented Turkish vinegar were used in the isolation of cellulose producing acetic acid bacteria. Waste material was pre-enriched in Hestrin-Schramm medium and microorganisms were isolated by plating dilution series on HS agar plates The isolated strains were subjected to elaborate biochemical and physiological tests for identification. Test results were compared to those of reference strains Gluconacetobacter xylinus DSM 46604, Gluconacetobacter hansenii DSM 5602 and Gluconacetobacter liquefaciens DSM 5603. Seventeen strains, out of which only three were found to secrete the exopolysaccharide cellulose. The highest cellulose yield was recorded as 0.263+-0.02 g cellulose L{sup -1} for the strain AS14 which resembled Gluconacetobacter hansenii in terms of biochemical tests.

Aydin, Y. Andelib; Aksoy, Nuran Deveci [Chemical Engineering Department of Istanbul Technical University, Ayazaga, Maslak, Istanbul, 34469 (Turkey)

2010-06-17T23:59:59.000Z

383

Modified cellulose synthase gene from 'Arabidopsis thaliana' confers herbicide resistance to plants  

SciTech Connect (OSTI)

Cellulose synthase ('CS'), a key enzyme in the biosynthesis of cellulose in plants is inhibited by herbicides comprising thiazolidinones such as 5-tert-butyl-carbamoyloxy-3-(3-trifluromethyl) phenyl-4-thiazolidinone (TZ), isoxaben and 2,6-dichlorobenzonitrile (DCB). Two mutant genes encoding isoxaben and TZ-resistant cellulose synthase have been isolated from isoxaben and TZ-resistant Arabidopsis thaliana mutants. When compared with the gene coding for isoxaben or TZ-sensitive cellulose synthase, one of the resistant CS genes contains a point mutation, wherein glycine residue 998 is replaced by an aspartic acid. The other resistant mutation is due to a threonine to isoleucine change at amino acid residue 942. The mutant CS gene can be used to impart herbicide resistance to a plant; thereby permitting the utilization of the herbicide as a single application at a concentration which ensures the complete or substantially complete killing of weeds, while leaving the transgenic crop plant essentially undamaged.

Somerville, Chris R.; Scieble, Wolf

2000-10-11T23:59:59.000Z

384

Conduction mechanism of lithium bis(oxalato)borate–cellulose acetate polymer gel electrolytes  

Science Journals Connector (OSTI)

Polymer gel electrolytes (PGE) belonging to salt–solvent–polymer hybrid systems are prepared using a mixture of lithium bis(oxalato)borate (LiBOB), ?-butyrolactone (?-BL), and cellulose acetate (CA). The increase...

S. Z. Z. Abidin; M. Z. A. Yahya; O. H. Hassan; A. M. M. Ali

2014-12-01T23:59:59.000Z

385

Impact of pretreatment and downstream processing technologies on economics and energy in cellulosic ethanol production  

Science Journals Connector (OSTI)

While advantages of biofuel have been widely reported, studies also highlight the challenges in large scale production of biofuel. Cost of ethanol and process energy use in cellulosic ethanol plants are dependent...

Deepak Kumar; Ganti S Murthy

2011-09-01T23:59:59.000Z

386

Ab initio calculation of the structure of acetate cellulose membranes for reverse osmosis  

Science Journals Connector (OSTI)

The elementary unit of the monoacetate cellulose membrane in lithium, sodium, and potassium chloride solutions was simulated with the Gaussian-98 program package. The results are used for qualitative explanation ...

E. V. Butyrskaya; V. A. Shaposhnik; A. A. Reznikov

2005-01-01T23:59:59.000Z

387

Comparison of cellulose consumption between Coptotermes formosanus and Reticulitermes flavipes (Isoptera: Rhinotermitidae) under laboratory conditions  

E-Print Network [OSTI]

We are interested in determining the effects of subterranean termite soldier ratios on the overall cellulose consumption of Coptotermes formosanus and Reticulitermes flavipes. In nature, Coptotermes formosanus is found in very large colonies and a...

Lancaster, Denise

2007-09-17T23:59:59.000Z

388

Catalytic conversion of cellulose into 5-hydroxymethylfurfural over chromium trichloride in ionic liquid  

Science Journals Connector (OSTI)

An efficient method for converting cellulose into 5-hydroxymethylfurfural (5-HMF) using an inexpensive ionic...3·6H2O) was developed. The effects of hydrochloric acid loading, catalyst dosage, reaction temperatur...

Shui Wang; Yizhen Du; Wenqian Zhang…

2014-10-01T23:59:59.000Z

389

Catalytic conversion of cellulose into 5-hydroxymethylfurfural in high yields via a two-step process  

Science Journals Connector (OSTI)

As a key renewable chemical for plastics and fine chemicals, the preparation of 5-hydroxymethylfurfural (5-HMF) from biomass is an...3 was added which lead to a 5-HMF yield of 73% based on cellulose substrate. Th...

Xinhua Qi; Masaru Watanabe; Taku M. Aida; Richard L. Smith Jr.

2011-10-01T23:59:59.000Z

390

The Effects of Surfactant Pretreatment and Xylooligomers on Enzymatic Hydrolysis of Cellulose and Pretreated Biomass  

E-Print Network [OSTI]

cellulose and/or hemicellulose to monomer sugars that could be subsequently fermented into ethanol andcellulose and hemicellulose must be broken down fully to monomers for fermentation to ethanol

Qing, Qing

2010-01-01T23:59:59.000Z

391

Comparison of Cellulosic Ethanol Yields from Midwestern Maize and Reconstructed Tallgrass Prairie Systems Managed for Bioenergy  

Science Journals Connector (OSTI)

Maize- and prairie-based systems were investigated as cellulosic feedstocks by conducting a 9 ha side-by-side comparison on fertile soils in the Midwestern United States. Maize was grown continuously with adequat...

V. A. Nichols; F. E. Miguez; M. E. Jarchow; M. Z. Liebman; B. S. Dien

2014-12-01T23:59:59.000Z

392

EA-1705: Construction and Operation of a Proposed Cellulosic Biorefinery, Mascoma Corporation, Kinross Charter Township, Michigan  

Broader source: Energy.gov [DOE]

The frontier Project consists of the design, construction and operation of a biorefinery producing ethanol and other co-products from cellulosic materials utilizing a proprietary pretreatment and fermentation process.

393

Alternative formulations of regenerable flue gas cleanup catalysts  

SciTech Connect (OSTI)

The major source of man-made SO{sub 2} in the atmosphere is the burning of coal for electric power generation. Coal-fired utility plants are also large sources of NO{sub x} pollution. Regenerable flue gas desulfurization/NO{sub x} abatement catalysts provide one mechanism of simultaneously removing SO{sub 2} and NO{sub x} species from flue gases released into the atmosphere. The purpose of this project is to examine routes of optimizing the adsorption efficiency, the adsorption capacity, and the ease of regeneration of regenerable flue gas cleanup catalysts. We are investigating two different mechanisms for accomplishing this goal. The first involves the use of different alkali and alkaline earth metals as promoters for the alumina sorbents to increase the surface basicity of the sorbent and thus adjust the number and distribution of adsorption sites. The second involves investigation of non-aqueous impregnation, as opposed to aqueous impregnation, as a method to obtain an evenly dispersed monolayer of the promoter on the surface.

Mitchell, M.B.; White, M.G.

1991-01-01T23:59:59.000Z

394

Chapter 32 - Cellular Signaling in Dentin Repair and Regeneration  

Science Journals Connector (OSTI)

Abstract Injury to the dentin-pulp complex results in a variety of cellular responses that determine tooth vitality and survival. Initially, these responses center on the odontoblasts as the first line of defense and environmental sensors, but will subsequently encompass other cells in the pulp with a complex interplay being seen between regenerative responses involving odontoblasts and the inflammation associated with pulpal responses to injury. Local degradation of dentin matrix following injury will release bioactive molecules contributing to cellular signaling. While tissue repair and regeneration will likely occur only when infection and inflammation are under control, low-level cytokine stimulation during the earlier stages of dental disease, and possibly as resolution of inflammation ensues, may facilitate and promote reparative events. Whether odontoblasts survive the injurious challenge will determine if reactionary or reparative dentinogenesis occurs during repair and regeneration in the dentin-pulp complex. Notably the complexity of cellular responses is significantly greater for reparative dentinogenesis where stem/progenitor cell recruitment and induction of differentiation are required prior to up-regulation of cellular secretion of new matrix. Angiogeneic and neurogenic signaling are also important events during repair and regeneration. Improved understanding of cellular signaling following tooth injury helps underpin our approaches to diagnosis and treatment planning, as well as driving novel strategies for translation of new clinical therapeutic approaches.

Anthony (Tony) J. Smith; Paul R. Cooper

2015-01-01T23:59:59.000Z

395

The quantification of oxygen toxicity by the technique of cellulose acetate electrophoresis of rat serum proteins  

E-Print Network [OSTI]

THE QUANTIFICATION OF OXYGEN TOXICITY BY THE TECHNIQUE OF CELLULOSE ACETATE ELECTROPHORESIS OF RAT SERUM PROTEINS A Thesis by MARCIA WAGNER BARKER Submitted to the Graduate College of Texas A&ii University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE December 1979 Major Subject: Biology THE QUANTIFICATION OF OXYGEN TOXICITY BY THE TECHNIQUE OF CELLULOSE ACETATE ELECTROPHORESIS OF RAT SERUM PROTEINS A Thesis by MARCIA WAGNER BARKER Approved...

Barker, Marcia Wagner

2012-06-07T23:59:59.000Z

396

Regeneration of strong-base anion-exchange resins by sequential chemical displacement  

DOE Patents [OSTI]

A method for regenerating strong-base anion exchange resins utilizing a sequential chemical displacement technique with new regenerant formulation. The new first regenerant solution is composed of a mixture of ferric chloride, a water-miscible organic solvent, hydrochloric acid, and water in which tetrachloroferrate anion is formed and used to displace the target anions on the resin. The second regenerant is composed of a dilute hydrochloric acid and is used to decompose tetrachloroferrate and elute ferric ions, thereby regenerating the resin. Alternative chemical displacement methods include: (1) displacement of target anions with fluoroborate followed by nitrate or salicylate and (2) displacement of target anions with salicylate followed by dilute hydrochloric acid. The methodology offers an improved regeneration efficiency, recovery, and waste minimization over the conventional displacement technique using sodium chloride (or a brine) or alkali metal hydroxide.

Brown, Gilbert M. (Knoxville, TN); Gu, Baohua (Oak Ridge, TN); Moyer, Bruce A. (Oak Ridge, TN); Bonnesen, Peter V. (Knoxville, TN)

2002-01-01T23:59:59.000Z

397

The Anatomy of Plastic Events in Magnetic Amorphous Solids  

E-Print Network [OSTI]

Plastic events in amorphous solids can be much more than just "shear transformation zones" when the positional degrees of freedom are coupled non-trivially to other degrees of freedom. Here we consider magnetic amorphous solids where mechanical and magnetic degrees of freedom interact, leading to rather complex plastic events whose nature must be disentangled. In this paper we uncover the anatomy of the various contributions to some typical plastic events. These plastic events are seen as Barkhausen Noise or other "serrated noises". Using theoretical considerations we explain the observed statistics of the various contributions to the considered plastic events. The richness of contributions and their different characteristics imply that in general the statistics of these "serrated noises" cannot be universal, but rather highly dependent on the state of the system and on its microscopic interactions.

H. George E. Hentschel; Itamar Procaccia; Bhaskar Sen Gupta

2015-01-25T23:59:59.000Z

398

Deposition of device quality low H content, amorphous silicon films  

DOE Patents [OSTI]

A high quality, low hydrogen content, hydrogenated amorphous silicon (a-Si:H) film is deposited by passing a stream of silane gas (SiH{sub 4}) over a high temperature, 2,000 C, tungsten (W) filament in the proximity of a high temperature, 400 C, substrate within a low pressure, 8 mTorr, deposition chamber. The silane gas is decomposed into atomic hydrogen and silicon, which in turn collides preferably not more than 20--30 times before being deposited on the hot substrate. The hydrogenated amorphous silicon films thus produced have only about one atomic percent hydrogen, yet have device quality electrical, chemical, and structural properties, despite this lowered hydrogen content. 7 figs.

Mahan, A.H.; Carapella, J.C.; Gallagher, A.C.

1995-03-14T23:59:59.000Z

399

Synergistic Saccharification, and Direct Fermentation to Ethanol, of Amorphous Cellulose by Use of an Engineered Yeast Strain Codisplaying Three Types of Cellulolytic Enzyme  

Science Journals Connector (OSTI)

...fuel sources and most sustainable energy resource and is reproduced...also financed by the New Energy and Industrial Technology...from lignocellulose: a challenge for metabolic engineering and process integration. Appl. Microbiol...

Yasuya Fujita; Junji Ito; Mitsuyoshi Ueda; Hideki Fukuda; Akihiko Kondo

2004-02-01T23:59:59.000Z

400

Technological development for commercialization of amorphous silicon based multijunction modules  

SciTech Connect (OSTI)

Some of the significant steps in technological development for large-scale commercialization of amorphous silicon (a-Si:H) based multijunction photovoltaic modules are presented. These developments are establishing a high quality baseline process for manufacturing large-area ({approximately}8 ft{sup 2}) a-Si:H/a-SiGe:H tandem junction modules with improved stabilized conversion efficiency, throughput, yield, and reduced materials usage.

Yang, L.; Bennett, M.; Chen, L. [Solarex, Newtown, PA (United States)] [and others

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Optically induced conductivity changes in amorphous silicon: A historical perspective  

SciTech Connect (OSTI)

A historical perspective of the discovery of optically induced changes in amorphous silicon is presented in this paper from my personal point of view. It includes the story of how Chris Wronski and the author discovered the effect, the key elements in the R and D environment that lead to the quick realization that the effect was reversible and reproducible, how the research environment supported the rapid publication of their first paper, and a brief look at the effect from today's perspective.

Staebler, D.L.

1997-07-01T23:59:59.000Z

402

Saddle-field glow-discharge deposition of amorphous semiconductors  

SciTech Connect (OSTI)

The authors present a dc saddle-field glow-discharge deposition procedure which combines the positive attributes of the conventional dc and rf glow-discharge techniques. Preliminary mass spectra analyses of both silane and methane glow-discharges demonstrates that ions constitute a significant fraction of the species reaching the film surface. Growth rate analyses suggest that ions play a significant role in the saddle-field glow-discharge deposition of amorphous semiconducting films.

Gaspari, F.; Sidhu, L.S.; O`Leary, S.K.; Zukotynski, S. [Univ. of Toronto, Ontario (Canada). Dept. of Electrical and Computer Engineering

1996-12-31T23:59:59.000Z

403

Amorphous silicon thin film transistor as nonvolatile device.  

E-Print Network [OSTI]

particles before loaded into the deposition chamber. 2.2.2. Equipment for Plasma Processes Plasma-Enhanced Chemical Vapor...: Dr. Yue Kuo n-channel and p-channel amorphous-silicon thin-film transistors (a-Si:H TFTs) with copper electrodes prepared by a novel plasma etching process have been fabricated and studied. Their characteristics are similar to those of TFTs...

Nominanda, Helinda

2008-10-10T23:59:59.000Z

404

Formation of amorphous metal alloys by chemical vapor deposition  

DOE Patents [OSTI]

Amorphous alloys are deposited by a process of thermal dissociation of mixtures of organometallic compounds and metalloid hydrides,e.g., transition metal carbonyl, such as nickel carbonyl and diborane. Various sizes and shapes of deposits can be achieved, including near-net-shape free standing articles, multilayer deposits, and the like. Manipulation or absence of a magnetic field affects the nature and the structure of the deposit. 1 fig.

Mullendore, A.W.

1988-03-18T23:59:59.000Z

405

Fabrication of amorphous metal matrix composites by severe plastic deformation  

E-Print Network [OSTI]

of Vitreloy 106a (Zr58.5Nb2.8Cu15.6Ni12.8Al10.3-wt%), ARLloy #1 (Hf71.3Cu16.2Ni7.6Ti2.2Al2.6 -wt%), and both of these amorphous alloys blended with crystalline phases of W, Cu and Ni. Novel instrumented extrusions and a host of postprocessing material...

Mathaudhu, Suveen Nigel

2006-10-30T23:59:59.000Z

406

Systematic investigation of picosecond photoinduced absorption in hydrogenated amorphous silicon  

Science Journals Connector (OSTI)

A systematic study of the dependence of picosecond photoinduced absorption (PA) and transmission in hydrogenated amorphous silicon on sample thickness, doping concentration, and excitation intensity has been undertaken. Investigations demonstrated that the picosecond PA decays are not caused by recombination at the sample surface nor by deep trapping. The decays are consistent with thermalization within the band tails and doping-induced band-tail states.

W. B. Jackson; C. Doland; C. C. Tsai

1986-08-15T23:59:59.000Z

407

Energy Efficient Routing and Spectrum Assignment With Regenerator Placement in Elastic Optical Networks  

Science Journals Connector (OSTI)

In this paper, we present a dynamic energy efficient routing and spectrum assignment algorithm with regenerator placement (RP) capability for elastic optical networks. In this...

Fallahpour, Ahmad; Beyranvand, Hamzeh; Nezamalhosseini, S Alireza; Salehi, Jawad A

2014-01-01T23:59:59.000Z

408

A Fast Start-up On-Board Fuel Reformer for NOx Adsorber Regeneration...  

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

Fuel Processor for Rapid and Efficient Regeneration of Single Leg NOx Adsorber Systems Hydrogen generation from plasmatron reformers and use for diesel exhaust aftertreatment...

409

Flash High-Pressure Condensate to Regenerate Low-Pressure Steam  

Broader source: Energy.gov [DOE]

This tip sheet outlines optimal conditions for flashing high-pressure condensate to regenerate low-pressure steam in steam systems.

410

Microwave Regenerated DPF for Auxiliary Power Units and Diesel Hybrid Vehicles  

Broader source: Energy.gov [DOE]

Microwave regeneration of the DPF can be done without diesel fuel or a catalyst in less than 5 minutes with the engine off.

411

Ultra-Lite Diesel Particulate Filter Cartridge for Reduced Regeneration Time and Fuel Consumption  

Broader source: Energy.gov [DOE]

Self-cleaning ceramic filter cartridges offer the advantage of better fuel economy, faster regeneration time, improved heat transfer, and reduction in manufacturing steps

412

Syngas Generator Use for Retrofit DPF Active Regeneration on a Medium Duty Truck  

Broader source: Energy.gov [DOE]

Syngas enables low temperature in-use active regeneration of DPFs based on real-world data from a vehicle tested for over 1,000 hours

413

Design Energy Efficient Translucent Optical Networks with Joint Routing and Wavelength Assignment and Mixed Regenerator Placement  

Science Journals Connector (OSTI)

We propose network design algorithms to improve energy-efficiency of a translucent network with joint optimization of RWA and mixed regenerator placement (MRP). Simulations show that...

Zhong, Weida; Zhu, Zuqing; Wan, Chuanqi; Farahmand, Farid

414

Energy-Efficient Resilience in Translucent Optical Networks With Mixed Regenerator Placement  

Science Journals Connector (OSTI)

In this paper, we investigate energy-efficient resilience designs for the translucent optical networks using mixed regenerator placement (MRP). We consider both static and dynamic...

Chen, Xiaoliang; Ji, Fan; Wu, Yanan; Zhu, Zuqing

2013-01-01T23:59:59.000Z

415

E-Print Network 3.0 - accelerates hemopoietic regeneration Sample...  

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

List Advanced Search Sample search results for: accelerates hemopoietic regeneration Page: << < 1 2 3 4 5 > >> 1 Cytotechnology 41: 7592, 2003. 2003 Kluwer Academic...

416

Isolation of levoglucosan from pyrolysis oil derived from cellulose  

DOE Patents [OSTI]

High purity levoglucosan is obtained from pyrolysis oil derived from cellulose by: mixing pyrolysis oil with water and a basic metal hydroxide, oxide, or salt in amount sufficient to elevate pH values to a range of from about 12 to about 12.5, and adding an amount of the hydroxide, oxide, or salt in excess of the amount needed to obtain the pH range until colored materials of impurities from the oil are removed and a slurry is formed; drying the slurry azeotropically with methyl isobutyl ketone solvent to form a residue, and further drying the residue by evaporation; reducing the residue into a powder; continuously extracting the powder residue with ethyl acetate to provide a levoglucosan-rich extract; and concentrating the extract by removing ethyl acetate to provide crystalline levoglucosan. Preferably, Ca(OH)[sub 2] is added to adjust the pH to the elevated values, and then Ca(OH)[sub 2] is added in an excess amount needed. 3 figures.

Moens, L.

1994-12-06T23:59:59.000Z

417

ZeaChem Pilot Project: High-Yield Hybrid Cellulosic Ethanol Process Using High-Impact Feedstock for Commercialization  

Broader source: Energy.gov [DOE]

This pilot-scale integrated biorefinery will produce 250,000 gallons per year of cellulosic ethanol when running at full operational status.

418

The role of different sources of tree regeneration in the initial stages of natural forest recovery after logging of conifer plantation in a warm-temperate region  

Science Journals Connector (OSTI)

We analyzed the role of regeneration type (surviving from advanced regeneration, resprouting from advanced regeneration, or newly recruited seedlings) in determining the quantity and quality of individuals in ree...

Hiromi Yamagawa; Satoshi Ito

2006-12-01T23:59:59.000Z

419

Fuel Injection Strategy for Soot-Filter Regeneration  

Broader source: Energy.gov [DOE]

Fuel injection is optimized to allow both fast soot removal and temperatures below 700-800oC in case of drop-to-idle event. A 1-D mathematical model was used to simulate soot loading and temperature variations as a function of time and axial position in the filter during active regenerations and drop-to-idle events. The fact that the maximum temperature reached in a soot filter is a function of the soot loading when the drop-to-idle event occurs has been taken into account for developing this fuel injection strategy.

420

Method for the regeneration of spent molten zinc chloride  

DOE Patents [OSTI]

In a process for regenerating spent molten zinc chloride which has been used in the hydrocracking of coal or ash-containing polynuclear aromatic hydrocarbonaceous materials derived therefrom and which contains zinc chloride, zinc oxide, zinc oxide complexes and ash-containing carbonaceous residue, by incinerating the spent molten zinc chloride to vaporize the zinc chloride for subsequent condensation to produce a purified molten zinc chloride: an improvement comprising the use of clay in the incineration zone to suppress the vaporization of metals other than zinc. Optionally water is used in conjunction with the clay to further suppress the vaporization of metals other than zinc.

Zielke, Clyde W. (McMurray, PA); Rosenhoover, William A. (Pittsburgh, PA)

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Single-step conversion of cellulose to 5-hydroxymethylfurfural (HMF), a versatile platform chemical  

Science Journals Connector (OSTI)

The ability to use cellulosic biomass as feedstock for the large-scale production of liquid fuels and chemicals depends critically on the development of effective low temperature processes. One promising biomass-derived platform chemical is 5-hydroxymethylfurfural (HMF), which is suitable for alternative polymers or for liquid biofuels. While HMF can currently be made from fructose and glucose, the ability to synthesize HMF directly from raw natural cellulose would remove a major barrier to the development of a sustainable HMF platform. Here we report a single-step catalytic process where cellulose as the feed is rapidly depolymerized and the resulting glucose is converted to HMF under mild conditions. A pair of metal chlorides (CuCl2 and CrCl2) dissolved in 1-ethyl-3-methylimidazolium chloride ([EMIM]Cl) at temperatures of 80–120 °C collectively catalyze the single-step process of converting cellulose to HMF with an unrefined 96% purity among recoverable products (at 55.4 ± 4.0% HMF yield). After extractive separation of HMF from the solvent, the catalytic performance of recovered [EMIM]Cl and the catalysts was maintained in repeated uses. Cellulose depolymerization occurs at a rate that is about one order of magnitude faster than conventional acid-catalyzed hydrolysis. In contrast, single metal chlorides at the same total loading showed considerably less activity under similar conditions.

Yu Su; Heather M. Brown; Xiwen Huang; Xiao-dong Zhou; James E. Amonette; Z. Conrad Zhang

2009-01-01T23:59:59.000Z

422

The proteome and phosphoproteome of Neurospora crassa in response to cellulose, sucrose and carbon starvation  

Science Journals Connector (OSTI)

Abstract Improving cellulolytic enzyme production by plant biomass degrading fungi holds great potential in reducing costs associated with production of next-generation biofuels generated from lignocellulose. How fungi sense cellulosic materials and respond by secreting enzymes has mainly been examined by assessing function of transcriptional regulators and via transcriptional profiling. Here, we obtained global proteomic and phosphoproteomic profiles of the plant biomass degrading filamentous fungus Neurospora crassa grown on different carbon sources, i.e. sucrose, no carbon, and cellulose, by performing isobaric tags for relative and absolute quantification (iTRAQ)-based LC–MS/MS analyses. A comparison between proteomes and transcriptomes under identical carbon conditions suggests that extensive post-transcriptional regulation occurs in N. crassa in response to exposure to cellulosic material. Several hundred amino acid residues with differential phosphorylation levels on crystalline cellulose (Avicel) or carbon-free medium vs sucrose medium were identified, including phosphorylation sites in a major transcriptional activator for cellulase genes, CLR1, as well as a cellobionic acid transporter, CBT1. Mutation of phosphorylation sites on CLR1 did not have a major effect on transactivation of cellulase production, while mutation of phosphorylation sites in CBT1 increased its transporting capacity. Our data provides rich information at both the protein and phosphorylation levels of the early cellular responses to carbon starvation and cellulosic induction and aids in a greater understanding of the underlying post-transcriptional regulatory mechanisms in filamentous fungi.

Yi Xiong; Samuel T. Coradetti; Xin Li; Marina A. Gritsenko; Therese Clauss; Vlad Petyuk; David Camp; Richard Smith; Jamie H.D. Cate; Feng Yang; N. Louise Glass

2014-01-01T23:59:59.000Z

423

Single-step conversion of cellulose to 5-hydroxymethylfurfural (HMF), a versatile platform chemical  

SciTech Connect (OSTI)

The ability to use cellulosic biomass as feedstock for the production of fuels and chemicals currently derived from petroleum depends critically on the development of effective low-temperature processes. While HMF, as a versatile platform chemical suitable for use in polymer synthesis or production of liquid biofuels, can currently be made from fructose and glucose, synthesis of HMF directly from raw natural cellulose represents the last major barrier toward the development of a sustainable HMF platform. Here we report an unprecedented single-step pathway that depolymerizes cellulose rapidly under mild conditions and converts the resulting glucose to hydroxymethylfurfural (HMF). A pair of metal chlorides (CuCl2 and CrCl2) dissolved in 1-ethyl-3-methylimidazolium chloride at temperatures of 80-120°C catalyzes cellulose depolymerization and the subsequent glucose conversion to HMF with 95% selectivity among recoverable products (at 56% HMF yield). Cellulose depolymerization, which can also be catalyzed by other metalchloride pairs such as CuCl2 paired with PdCl2, CrCl3, or FeCl3, occurs at a rate that is more than one order of magnitude faster than conventional acid-catalyzed hydrolysis. In contrast, single-metal chlorides at the same total loading showed low activity under similar conditions. Mechanistic studies suggest that the C2 hydrogen of the imidazolium ring is activated by the paired metal-chloride catalysts.

Su, Yu; Brown, Heather M.; Huang, Xiwen; Zhou, Xiao Dong; Amonette, James E.; Zhang, Z. Conrad

2009-06-20T23:59:59.000Z

424

Improved method of preparing p-i-n junctions in amorphous silicon semiconductors  

DOE Patents [OSTI]

A method of preparing p/sup +/-i-n/sup +/ junctions for amorphous silicon semiconductors includes depositing amorphous silicon on a thin layer of trivalent material, such as aluminum, indium, or gallium at a temperature in the range of 200/sup 0/C to 250/sup 0/C. At this temperature, the layer of trivalent material diffuses into the amorphous silicon to form a graded p/sup +/-i junction. A layer of n-type doped material is then deposited onto the intrinsic amorphous silicon layer in a conventional manner to finish forming the p/sup +/-i-n/sup +/ junction.

Madan, A.

1984-12-10T23:59:59.000Z

425

Influence of magnetic field on dielectric susceptibility of amorphous solids at ultra low temperature.  

E-Print Network [OSTI]

??The dielectric response of some amorphous solids below 100 mK is known to be sensitive to an applied magnetic field. This work presents new experimental… (more)

Stanford University, Dept. of Physics

2010-01-01T23:59:59.000Z

426

E-Print Network 3.0 - amorphous calcium carbonate Sample Search...  

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

of an otherwise unstable amorphous calcium carbonate (ACC) phase.15,21,25,45 Various additives... known yet most intriguing and fascinating natural biomineral is calcium...

427

E-Print Network 3.0 - amorphous carbon particles Sample Search...  

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

; Renewable Energy 3 High-Purity Catalytic CVD Generation of Single-Walled Carbon Nanotubes from Alcohol Summary: SWNTs with negligible amount of amorphous carbon, multi-walled...

428

E-Print Network 3.0 - amorphous boron coatings Sample Search...  

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

, S. Li et al., "Microstructure and deposition mechanism of CVD amorphous boron carbide coatings... ., "Preparation of pure boron coating film and its characterization by...

429

E-Print Network 3.0 - amorphous-silicon-based thin-film photovoltaic...  

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

CELLS... . 1. Transmittance modulation spectrum TT for an amorphous silicon-based pin solar cell prepared... . ACKNOWLEDGMENTS This research has been supported through the ......

430

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

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

431

E-Print Network 3.0 - amorphous selenium digital Sample Search...  

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

Environmental Sciences and Ecology 55 Structural Organization of Arsenic Selenide Liquids: New Results from Liquid State NMR Summary: of pure amorphous selenium and is...

432

Applications in the Nuclear Industry for Thermal Spray Amorphous Metal and Ceramic Coatings  

E-Print Network [OSTI]

resistance up to the glass METALLURGICAL AND MATERIALScrystalline materials have excellent corrosion resistance,resistance of nickel-based crystalline or amorphous materials

Blink, J.; Farmer, J.; Choi, J.; Saw, C.

2009-01-01T23:59:59.000Z

433

Electron-beam-induced information storage in hydrogenated amorphous silicon devices  

DOE Patents [OSTI]

A method for recording and storing information in a hydrogenated amorphous silicon device, comprising: depositing hydrogenated amorphous silicon on a substrate to form a charge collection device; and generating defects in the hydrogenated amorphous silicon device, wherein the defects act as recombination centers that reduce the lifetime of carriers, thereby reducing charge collection efficiency and thus in the charge collection mode of scanning probe instruments, regions of the hydrogenated amorphous silicon device that contain the defects appear darker in comparison to regions of the device that do not contain the defects, leading to a contrast formation for pattern recognition and information storage.

Yacobi, B.G.

1985-03-18T23:59:59.000Z

434

E-Print Network 3.0 - amorphous layer formation Sample Search...  

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

Tin Anode Material for Lithium Secondary Battery Summary: , indicating the formation of an amorphous phase. The XRD pattern of Sn nanoparticles showed no impurity...

435

E-Print Network 3.0 - amorphous metals high-performance Sample...  

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

Mathematics 4 Licensable Technologies Summary: and low-performance, low-cost amorphous film solar cells. n Potential for high efficiency, high-performance... Benefits: n...

436

E-Print Network 3.0 - amorphous solid water Sample Search Results  

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

34 Energy Conversion DevicesEnergy Conversion Devices Fuel Cell Electrocatalyst Development Program Summary: electrolysis Corrosion resistant amorphous coating for hot...

437

HCI Adsorption and Ionization on Amorphous and Crystalline H2O...  

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

65, 2014041 using synchrotron-based electron spectroscopy Citation: Ayotte P, P Marchand, JL Daschbach, RS Smith, and BD Kay.2011."HCI Adsorption and Ionization on Amorphous...

438

E-Print Network 3.0 - amorphous silicon germanium Sample Search...  

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

6 September 2007; published online 17 October 2007 Amorphous silicon... -fiber optoelectronics.5,6 We have shown that crystalline silicon and ... Source: Gopalan, Venkatraman -...

439

E-Print Network 3.0 - amorphous semiconductors doped Sample Search...  

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

Centre de mathmatiques Collection: Mathematics 69 Synthesis Of Nitrogen-Doped Graphene Films For Lithium Battery Application Summary: of amorphous carbon along with...

440

Semiconductor device PN junction fabrication using optical processing of amorphous semiconductor material  

DOE Patents [OSTI]

Systems and methods for semiconductor device PN junction fabrication are provided. In one embodiment, a method for fabricating an electrical device having a P-N junction comprises: depositing a layer of amorphous semiconductor material onto a crystalline semiconductor base, wherein the crystalline semiconductor base comprises a crystalline phase of a same semiconductor as the amorphous layer; and growing the layer of amorphous semiconductor material into a layer of crystalline semiconductor material that is epitaxially matched to the lattice structure of the crystalline semiconductor base by applying an optical energy that penetrates at least the amorphous semiconductor material.

Sopori, Bhushan; Rangappan, Anikara

2014-11-25T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

E-Print Network 3.0 - amorphous silicon photovoltaic Sample Search...  

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

results for: amorphous silicon photovoltaic Page: << < 1 2 3 4 5 > >> 1 Institute of Energy Conversion University of Delaware Summary: photovoltaics on flexible substrates....

442

E-Print Network 3.0 - amorphous silicon modules Sample Search...  

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

search results for: amorphous silicon modules Page: << < 1 2 3 4 5 > >> 1 Institute of Energy Conversion University of Delaware Summary: modules. Consulted for a research...

443

E-Print Network 3.0 - amorphous-silicon solar cells Sample Search...  

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

results for: amorphous-silicon solar cells Page: << < 1 2 3 4 5 > >> 1 Institute of Energy Conversion University of Delaware Summary: modules. Consulted for a research...

444

E-Print Network 3.0 - amorphous-silicon-based solar cell Sample...  

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

Vol. 609 2000 Materials Research Society Preparation of Microcrystalline Silicon Based Solar Cells at High i-layer Summary: light exposure as do the amorphous silicon-based...

445

E-Print Network 3.0 - amorphous silicon flat-panel Sample Search...  

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

with the low cost of amorphous and polycrystalline silicon films on non... , such as solar cells and flat-panel displays, our ACSi technology promises to fundamentally...

446

E-Print Network 3.0 - amorphous wc superconducting Sample Search...  

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

should ultimately result. Can implantation... of a covalent solute into a transition metal host stabilize the damage and hence produce an amorphous alloy Source: Ecole...

447

Characterization of cellulosic wastes and gasification products from chicken farms  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer The gas chromatography indicated the variable quality of the producer gas. Black-Right-Pointing-Pointer The char had appreciable NPK values, and can be used as a fertiliser. Black-Right-Pointing-Pointer The bio-oil produced was of poor quality, having high moisture content and low pH. Black-Right-Pointing-Pointer Mass and energy balances showed inadequate level energy recovery from the process. Black-Right-Pointing-Pointer Future work includes changing the operating parameters of the gasification unit. - Abstract: The current article focuses on gasification as a primary disposal solution for cellulosic wastes derived from chicken farms, and the possibility to recover energy from this process. Wood shavings and chicken litter were characterized with a view to establishing their thermal parameters, compositional natures and calorific values. The main products obtained from the gasification of chicken litter, namely, producer gas, bio-oil and char, were also analysed in order to establish their potential as energy sources. The experimental protocol included bomb calorimetry, pyrolysis combustion flow calorimetry (PCFC), thermo-gravimetric analyses (TGA), differential scanning calorimetry (DSC), Fourier transform infrared (FT-IR) spectroscopy, Raman spectroscopy, elemental analyses, X-ray diffraction (XRD), mineral content analyses and gas chromatography. The mass and energy balances of the gasification unit were also estimated. The results obtained confirmed that gasification is a viable method of chicken litter disposal. In addition to this, it is also possible to recover some energy from the process. However, energy content in the gas-phase was relatively low. This might be due to the low energy efficiency (19.6%) of the gasification unit, which could be improved by changing the operation parameters.

Joseph, Paul, E-mail: p.joseph@ulster.ac.uk [School of the Built Environment and the Built Environment Research Institute, University of Ulster, Newtownabbey BT37 0QB, County Antrim, Northern Ireland (United Kingdom); Tretsiakova-McNally, Svetlana; McKenna, Siobhan [School of the Built Environment and the Built Environment Research Institute, University of Ulster, Newtownabbey BT37 0QB, County Antrim, Northern Ireland (United Kingdom)

2012-04-15T23:59:59.000Z

448

Effect of Diesel Oxidation Catalysts on the Diesel Particulate Filter Regeneration Process  

Science Journals Connector (OSTI)

Effect of Diesel Oxidation Catalysts on the Diesel Particulate Filter Regeneration Process ... A Diesel Particulate Filter (DPF) regeneration process was investigated during aftertreatment exhaust of a simulated diesel engine under the influence of a Diesel Oxidation Catalyst (DOC). ... Diesel particulate matter (PM) significantly contributes to urban air pollution and has often been associated with adverse health effects. ...

Leonardo Lizarraga; Stamatios Souentie; Antoinette Boreave; Christian George; Barbara D’Anna; Philippe Vernoux

2011-11-03T23:59:59.000Z

449

Small Molecules That Recapitulate the Early Steps of Urodele Amphibian Limb Regeneration and Confer Multipotency  

Science Journals Connector (OSTI)

Small Molecules That Recapitulate the Early Steps of Urodele Amphibian Limb Regeneration and Confer Multipotency ... In urodele amphibians, an early step in limb regeneration is skeletal muscle fiber dedifferentiation into a cellulate that proliferates to contribute new limb tissue. ... Pluripotency is defined as the ability of a cell population to differentiate into the three germ layers (endoderm, mesoderm, and ectoderm) and their differentiated derivatives. ...

Woong-Hee Kim; Da-Woon Jung; Jinmi Kim; Sin-Hyeog Im; Seung Yong Hwang; Darren R. Williams

2012-01-23T23:59:59.000Z

450

White pine (Pinus strobus L.) regeneration dynamics at the species' northern limit of continuous distribution  

E-Print Network [OSTI]

White pine (Pinus strobus L.) regeneration dynamics at the species' northern limit of continuous white pine (Pinus strobus L.) has been significantly reduced across its distribution range over the past quantified natural white pine regeneration in unmanaged mature stands, identified the most important

Asselin, Hugo

451

2,3,7,8-Tetrachlorodibenzo-p-dioxin Inhibits Zebrafish Caudal Fin Regeneration  

E-Print Network [OSTI]

2,3,7,8-Tetrachlorodibenzo-p-dioxin Inhibits Zebrafish Caudal Fin Regeneration Jeanmarie M. Zodrow- chlorodibenzo-p-dioxin (TCDD). Zebrafish caudal fins were par- tially amputated, and the fish received. Key Words: zebrafish; fin regeneration; aryl hydrocarbon recep- tor; AHR; 2,3,7,8-tetrachlorodibenzo-p-dioxin

Tullos, Desiree

452

Regenerator?based thermoacoustic refrigerator for ice cream storage applications  

Science Journals Connector (OSTI)

A regenerator?based chiller has been built in the ‘‘bellows bounce’’ style [J. Acoust. Soc. Am. 112 15 (2002)] to replace the vapor compression system in an ice cream sales cabinet. It utilizes a 6?in.?diam metal bellows to form a compliant cavity that contains the dynamic pressure oscillation (>50?kPa). The stiffness of the gas trapped in the bellows is resonated against the mass of the bellows?cap and the mass of a moving?magnet linear motor which is capable of high (>85%) electro?acoustic efficiency. A second resonator operated well below its natural frequency uses the gas stiffness of a 1?l volume nested within the bellows and the inertia of an ordinary loudspeaker cone to create the pressure difference across the regenerator that drives gas flow that is in?phase with pressure. The mass of the cone can be adjusted to vary the multiplication factor that is typically 5%–10% greater than the dynamic pressure within the bellows. The loudspeaker cone suffers none of the hydrodynamic losses associated with an acoustic inertance and eliminates problems with dc gas flow in the energy feedback path. The cold heat exchanger forms one surface of the pressure vessel permitting direct contact with any thermal load. [Work supported by Ben and Jerry’s Homemade.

2003-01-01T23:59:59.000Z

453

Nuclear reactor cooling system decontamination reagent regeneration. [PWR; BWR  

DOE Patents [OSTI]

An improved method for decontaminating the coolant system of water-cooled nuclear power reactors and for regenerating the decontamination solution is described. A small amount of one or more weak-acid organic complexing agents is added to the reactor coolant, and the pH is adjusted to form a decontamination solution which is circulated throughout the coolant system to dissolve metal oxides from the interior surfaces and complex the resulting metal ions and radionuclide ions. The coolant containing the complexed metal ions and radionuclide ions is passed through a strong-base anion exchange resin bed which has been presaturated with a solution containing the complexing agents in the same ratio and having the same pH as the decontamination solution. As the decontamination solution passes through the resin bed, metal-complexed anions are exchanged for the metal-ion-free anions on the bed, while metal-ion-free anions in the solution pass through the bed, thus removing the metal ions and regenerating the decontamination solution.

Anstine, L.D.; James, D.B.; Melaika, E.A.; Peterson, J.P. Jr.

1980-06-06T23:59:59.000Z

454

Control of hardwood regeneration in restored carolina bay depression wetlands.  

SciTech Connect (OSTI)

Carolina bays are depression wetlands located in the coastal plain region of the eastern United States. Disturbance of this wetland type has been widespread, and many sites contain one or more drainage ditches. Restoration of bays is of interest because they are important habitats for rare flora and fauna. Previous bay restoration projects have identified flood-tolerant woody competitors in the seedbank and re-sprouting as impediments to the establishment of desired herbaceous wetland vegetation communities. We restored 3 bays on the Savannah River Site, South Carolina, by plugging drainage ditches, harvesting residual pine/hardwood stands within the bays, and monitoring the vegetative response of the seedbank to the hydrologic change. We applied a foliar herbicide on one-half of each bay to control red maple (Acerrubrum), sweetgum (Liquidambar styraciflua), and water oak (Quercus nigra) sprouting, and we tested its effectiveness across a hydrologic gradient in each bay. Hardwood regeneration was partially controlled by flooding in bays that exhibited long growing season hydroperiods. The findings also indicated that herbicide application was an effective means for managing hardwood regeneration and re-sprouting in areas where hydrologic control was ineffective. Herbicide use had no effect on species richness in the emerging vegetation community. In late-season drawdown periods, or in bays where hydroperiods are short, more than one herbicide application may be necessary.

Moser, Lee, J.; Barton, Christopher, D.; Blake, John, I.

2012-06-01T23:59:59.000Z

455

Carbon Dioxide Capture from Flue Gas Using Dry Regenerable Sorbents  

SciTech Connect (OSTI)

Regenerable sorbents based on sodium carbonate (Na{sub 2}CO{sub 3}) can be used to separate carbon dioxide (CO{sub 2}) from coal-fired power plant flue gas. Upon thermal regeneration and condensation of water vapor, CO{sub 2} is released in a concentrated form that is suitable for reuse or sequestration. During the research project described in this report, the technical feasibility and economic viability of a thermal-swing CO{sub 2} separation process based on dry, regenerable, carbonate sorbents was confirmed. This process was designated as RTI's Dry Carbonate Process. RTI tested the Dry Carbonate Process through various research phases including thermogravimetric analysis (TGA); bench-scale fixed-bed, bench-scale fluidized-bed, bench-scale co-current downflow reactor testing; pilot-scale entrained-bed testing; and bench-scale demonstration testing with actual coal-fired flue gas. All phases of testing showed the feasibility of the process to capture greater than 90% of the CO{sub 2} present in coal-fired flue gas. Attrition-resistant sorbents were developed, and these sorbents were found to retain their CO{sub 2} removal activity through multiple cycles of adsorption and regeneration. The sodium carbonate-based sorbents developed by RTI react with CO{sub 2} and water vapor at temperatures below 80 C to form sodium bicarbonate (NaHCO3) and/or Wegscheider's salt. This reaction is reversed at temperatures greater than 120 C to release an equimolar mixture of CO{sub 2} and water vapor. After condensation of the water, a pure CO{sub 2} stream can be obtained. TGA testing showed that the Na{sub 2}CO3 sorbents react irreversibly with sulfur dioxide (SO{sub 2}) and hydrogen chloride (HCl) (at the operating conditions for this process). Trace levels of these contaminants are expected to be present in desulfurized flue gas. The sorbents did not collect detectable quantities of mercury (Hg). A process was designed for the Na{sub 2}CO{sub 3}-based sorbent that includes a co-current downflow reactor system for adsorption of CO{sub 2} and a steam-heated, hollow-screw conveyor system for regeneration of the sorbent and release of a concentrated CO{sub 2} gas stream. An economic analysis of this process (based on the U.S. Department of Energy's National Energy Technology Laboratory's [DOE/NETL's] 'Carbon Capture and Sequestration Systems Analysis Guidelines') was carried out. RTI's economic analyses indicate that installation of the Dry Carbonate Process in a 500 MW{sub e} (nominal) power plant could achieve 90% CO{sub 2} removal with an incremental capital cost of about $69 million and an increase in the cost of electricity (COE) of about 1.95 cents per kWh. This represents an increase of roughly 35.4% in the estimated COE - which compares very favorable versus MEA's COE increase of 58%. Both the incremental capital cost and the incremental COE were projected to be less than the comparable costs for an equally efficient CO{sub 2} removal system based on monoethanolamine (MEA).

Thomas Nelson; David Green; Paul Box; Raghubir Gupta; Gennar Henningsen

2007-06-30T23:59:59.000Z

456

Supplementation with xylanase and ?-xylosidase to reduce xylo-oligomer and xylan inhibition of enzymatic hydrolysis of cellulose and pretreated corn stover  

Science Journals Connector (OSTI)

Hemicellulose is often credited with being one of the important physical barriers to enzymatic hydrolysis of cellulose, and acts by blocking enzyme access to the cellulose surface. In addition, our recent researc...

Qing Qing; Charles E Wyman

2011-06-01T23:59:59.000Z

457

CHITINASE-LIKE1/POM-POM1 and Its Homolog CTL2 Are Glucan-Interacting Proteins Important for Cellulose Biosynthesis in Arabidopsis  

Science Journals Connector (OSTI)

...and Fratzl, P. (1995). The elementary cellulose fibril in Picea abies...Modifications of cellulose synthase confer resistance to isoxaben and thiazolidinone...polysaccharide composition in disease resistance. Trends Plant Sci. 9 : 203-209...

Clara Sánchez-Rodríguez; Stefan Bauer; Kian Hématy; Friederike Saxe; Ana Belén Ibáñez; Vera Vodermaier; Cornelia Konlechner; Arun Sampathkumar; Markus Rüggeberg; Ernst Aichinger; Lutz Neumetzler; Ingo Burgert; Chris Somerville; Marie-Theres Hauser; Staffan Persson

2012-02-10T23:59:59.000Z

458

NETL: IEP – Post-Combustion CO2 Emissions Control - Dry Regenerable  

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

Dry Regenerable Sorbents Dry Regenerable Sorbents Project No.: FC26-07NT43089 CLICK ON IMAGE TO ENLARGE Schematic of RTI’s Dry Carbonate Process Research Triangle Institute (RTI) International completed two projects, NT43089 and NT40923, to investigate the use of sodium carbonate (Na2CO3 or soda ash) as an inexpensive, dry, and regenerable sorbent for carbon dioxide (CO2) capture in the Dry Carbonate Process. In this process, Na2CO3 reacts with CO2 and water to form sodium bicarbonate at the temperature of the flue gas exhaust; the sorbent is then regenerated at modest temperatures (~120°C) to yield a concentrated stream of CO2 for sequestration or other use. The regenerated sorbent is recycled to the absorption step for subsequent CO2 capture. See schematic of RTI's Dry Carbonate Process.

459

Cost?Based Optimization of a Papermaking Wastewater Regeneration Recycling System  

Science Journals Connector (OSTI)

Wastewater can be regenerated for recycling in an industrial process to reduce freshwater consumption and wastewater discharge. Such an environment friendly approach will also lead to cost savings that accrue due to reduced freshwater usage and wastewater discharge. However the resulting cost savings are offset to varying degrees by the costs incurred for the regeneration of wastewater for recycling. Therefore systematic procedures should be used to determine the true economic benefits for any water?using system involving wastewater regeneration recycling. In this paper a total cost accounting procedure is employed to construct a comprehensive cost model for a paper mill. The resulting cost model is optimized by means of mathematical programming to determine the optimal regeneration flowrate and regeneration efficiency that will yield the minimum total cost.

Long Huang; Xiao Feng; Khim H. Chu

2010-01-01T23:59:59.000Z

460

Particle-induced amorphization of complex ceramics. Final report  

SciTech Connect (OSTI)

The crystalline-to-amorphous (c-a) phase transition is of fundamental importance. Particle irradiations provide an important, highly controlled means of investigating this phase transformation and the structure of the amorphous state. The interaction of heavy-particles with ceramics is complex because these materials have a wide range of structure types, complex compositions, and because chemical bonding is variable. Radiation damage and annealing can produce diverse results, but most commonly, single crystals become aperiodic or break down into a polycrystalline aggregate. The authors continued the studies of the transition from the periodic-to-aperiodic state in natural materials that have been damaged by {alpha}-recoil nuclei in the uranium and thorium decay series and in synthetic, analogous structures. The transition from the periodic to aperiodic state was followed by detailed x-ray diffraction analysis, in-situ irradiation/transmission electron microscopy, high resolution transmission electron microscopy, extended x-ray absorption fine structure spectroscopy/x-ray absorption near edge spectroscopy and other spectroscopic techniques. These studies were completed in conjunction with bulk irradiations that can be completed at Los Alamos National Laboratory or Sandia National Laboratories. Principal questions addressed in this research program included: (1) What is the process at the atomic level by which a ceramic material is transformed into a disordered or aperiodic state? (2) What are the controlling effects of structural topology, bond-type, dose rate, and irradiation temperature on the final state of the irradiated material? (3) What is the structure of the damaged material? (4) What are the mechanisms and kinetics for the annealing of interstitial and aggregate defects in these irradiated ceramic materials? (5) What general criteria may be applied to the prediction of amorphization in complex ceramics?

Ewing, R.C.; Wang, L.M.

1998-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

NREL: News - NREL Finds a New Cellulose Digestion Mechanism by a  

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

114 114 NREL Finds a New Cellulose Digestion Mechanism by a Fast-eating Enzyme CelA digests cellulose faster than enzymes from commercial preparations January 2, 2014 Researchers at the Energy Department's National Renewable Energy Laboratory (NREL) have discovered that an enzyme from a microorganism first found in the Valley of Geysers on the Kamchatka Peninsula in Russia in 1990 can digest cellulose almost twice as fast as the current leading component cellulase enzyme on the market. If the enzyme continues to perform well in larger tests, it could help drive down the price of making lignocellulosic fuels, from ethanol to other biofuels that can be dropped into existing infrastructure. A paper reporting this finding, "Revealing Nature's Cellulase Diversity: The

462

Direct analysis of cellulose in poplar stem by matrixassisted laser desorption/ionization imaging mass spectrometry  

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

analysis analysis of cellulose in poplar stem by matrix- assisted laser desorption/ionization imaging mass spectrometry Seokwon Jung 1,3 , Yanfeng Chen 3 , M. Cameron Sullards 1,3 and Arthur J. Ragauskas 1,2,3 * 1 BioEnergy Science Center, Georgia Institute of Technology, 500 10 th St., Atlanta, GA 30332, USA 2 Institute of Paper Science and Technology, Georgia Institute of Technology, 500 10 th St., Atlanta, GA 30332, USA 3 School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA 30332, USA Received 10 July 2010; Revised 9 August 2010; Accepted 23 August 2010 Matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI-IMS) was applied to the analysis of the spatial distribution of cellulose on a cross-section of juvenile poplar (Populus deltoids) stems. Microcrystalline cellulose (MCC) was used to optimize matrix (2,5-dihydroxybenzoic

463

Catalytic conversion of cellulosic biomass to ethylene glycol: Effects of inorganic impurities in biomass  

Science Journals Connector (OSTI)

Abstract The effects of typical inorganic impurities on the catalytic conversion of cellulose to ethylene glycol (EG) were investigated, and the mechanism of catalyst deactivation by certain impurities were clarified. It was found that most impurities did not affect the EG yield, but some non-neutral impurities or Ca and Fe ions greatly decreased the EG yield. Conditional experiments and catalyst characterization showed that some impurities changed the pH of the reaction solution and affected the cellulose hydrolysis rate; Ca and Fe cations reacted with tungstate ions and suppressed the retro-aldol condensation. To obtain a high EG yield, the pH of the reaction solution and the concentration of tungstate ions should be respectively adjusted to 5.0–6.0 and higher than 187 ppm. For raw biomass conversion, negative effects were eliminated by suitable pretreatments, and high EG yields comparable to those from pure cellulose were obtained.

Jifeng Pang; Mingyuan Zheng; Ruiyan Sun; Lei Song; Aiqin Wang; Xiaodong Wang; Tao Zhang

2015-01-01T23:59:59.000Z

464

Electrospun and oxidized cellulose materials for environmental remediation of heavy metals in groundwater  

SciTech Connect (OSTI)

This chapter focuses on the use of modified cellulosic materials in the field of environmental remediation. Two different chemical methods were involved in fabricating oxidized cellulose (OC), which has shown promise as a metal ion chelator in environmental applications. Electrospinning was utilized to introduce a more porous structure into an oxidized cellulose matrix. FTIR and Raman spectroscopy were used to study both the formation of OC and its surface complexation with metal ions. IR and Raman spectroscopic data demonstrate the formation of characteristic carboxylic groups in the structure of the final products and the successful formation of OC-metal complexes. Subsequent field tests at the Field Research Site at Oak Ridge National Laboratory confirmed the value of OC for sorption of both U and Th ions.

Han, Dong [Stony Brook University (SUNY); Halada, Gary P. [Stony Brook University (SUNY); Spalding, Brian Patrick [ORNL; Brooks, Scott C [ORNL

2009-12-01T23:59:59.000Z

465

Efficient conversion of cellulose into biofuel precursor 5-hydroxymethylfurfural in dimethyl sulfoxide–ionic liquid mixtures  

Science Journals Connector (OSTI)

Abstract In recent years, cellulose has received increasing attention as a potential material for the production of biofuels and bio-based chemicals. In this study, a new process for the efficient conversion of cellulose into 5-hydroxymethylfurfural (HMF) was developed by the use of AlCl3 as the catalyst in DMSO–ionic liquid ([BMIM]Cl) mixtures. Various reaction parameters such as reaction time, reaction temperature, solvent and catalyst dosage were investigated in detail. A high HMF yield of 54.9% was obtained from cellulose at 150 °C after 9 h in a mixed solvent of DMSO–[BMIM]Cl (10 wt.%). More importantly, the catalytic system could be reused for several times despite of the slight loss of its catalytic activity.

Shaohua Xiao; Bing Liu; Yimei Wang; Zhongfeng Fang; Zehui Zhang

2014-01-01T23:59:59.000Z

466

Ultrastable phosphoglucose isomerase through immobilization of cellulosebinding moduletagged thermophilic enzyme on lowcost highcapacity cellulosic adsorbent  

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

Ultra-stable phosphoglucose isomerase through immobilization of cellulose- Ultra-stable phosphoglucose isomerase through immobilization of cellulose- binding module-tagged thermophilic enzyme on low-cost high-capacity cellulosic adsorbent Suwan Myung 1,2 , Xiao-Zhou Zhang 1 , Y.-H. Percival Zhang 1,2,3* Running title: One-step protein purification and immobilization 1 Department of Biological Systems Engineering, Virginia Polytechnic Institute and State University, 210-A Seitz Hall, Blacksburg, VA 24061, USA 2 Institute for Critical Technology and Applied Science (ICTAS), Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA 3 DOE BioEnergy Science Center (BESC), Oak Ridge, TN 37831, USA *Corresponding author. Tel: 540-231-7414; Fax: 540-231-7414; Email: ypzhang@vt.edu Biocatalysts and Bioreactor Design

467

Chemical vapor deposition of amorphous semiconductor films. Final subcontract report  

SciTech Connect (OSTI)

Chemical vapor deposition (CVD) from higher order silanes has been studied for fabricating amorphous hydrogenated silicon thin-film solar cells. Intrinsic and doped a-Si:H films were deposited in a reduced-pressure, tubular-flow reactor, using disilane feed-gas. Conditions for depositing intrinsic films at growth rates up to 10 A/s were identified. Electrical and optical properties, including dark conductivity, photoconductivity, activation energy, optical absorption, band-gap and sub-band-gap absorption properties of CVD intrinsic material were characterized. Parameter space for depositing intrinsic and doped films, suitable for device analysis, was identified.

Rocheleau, R.E.

1984-12-01T23:59:59.000Z

468

Three dimensional amorphous silicon/microcrystalline silicon solar cells  

DOE Patents [OSTI]

Three dimensional deep contact amorphous silicon/microcrystalline silicon (a-Si/{micro}c-Si) solar cells are disclosed which use deep (high aspect ratio) p and n contacts to create high electric fields within the carrier collection volume material of the cell. The deep contacts are fabricated using repetitive pulsed laser doping so as to create the high aspect p and n contacts. By the provision of the deep contacts which penetrate the electric field deep into the material where the high strength of the field can collect many of the carriers, thereby resulting in a high efficiency solar cell. 4 figs.

Kaschmitter, J.L.

1996-07-23T23:59:59.000Z

469

Thermopower and conductivity activation energies in hydrogenated amorphous silicon  

SciTech Connect (OSTI)

The long range fluctuation model has been widely used to account for the difference in activation energies seen experimentally in dark conductivity and thermopower measurements in hydrogenated amorphous silicon. The authors report on a test of this model using measurements of the conductivity and thermoelectric effects carried out in both open and short circuit configurations. While the thermopower activation energy is less than that of the dark conductivity, the short circuit Seebeck conductivity is found to be nearly identical to the dark conductivity in both activation energy and magnitude, consistent with the long range fluctuation model.

Dyalsingh, H.M.; Kakalios, J. [Univ. of Minnesota, Minneapolis, MN (United States). School of Physics and Astronomy

1996-12-31T23:59:59.000Z

470

Template structure at the silicon/amorphous-silicide interface  

SciTech Connect (OSTI)

Surface x-ray diffraction was used to monitor the reaction of Ni on Si(111) at room temperature. Intensity oscillations during deposition signify that a layerwise reaction occurs for the first 30 A of metal deposited, forming a silicide overlayer with stoichiometry Ni{sub 2}Si. Structural analysis of the interfacial layers detects an epitaxial and commensurate phase, Ni{sub 2}Si-{theta}, with long range order imposed by the substrate but with very large local atomic displacements. This epitaxial structure remains at the interface as amorphous silicide forms above it.

Bennett, P.A.; Lee, M.Y.; Yang, P. [Department of Physics and Astronomy, Arizona State University, Box 871504, Tempe, Arizona 85287-1504 (United States)] [Department of Physics and Astronomy, Arizona State University, Box 871504, Tempe, Arizona 85287-1504 (United States); Schuster, R.; Eng, P.J.; Robinson, I.K. [Physics Department, University of Illinois, Urbana, Illinois 61801 (United States)] [Physics Department, University of Illinois, Urbana, Illinois 61801 (United States)

1995-10-02T23:59:59.000Z

471

Process for producing amorphous and crystalline silicon nitride  

DOE Patents [OSTI]

A process for producing amorphous or crystalline silicon nitride is disclosed which comprises reacting silicon disulfide ammonia gas at elevated temperature. In a preferred embodiment silicon disulfide in the form of "whiskers" or needles is heated at temperature ranging from about 900.degree. C. to about 1200.degree. C. to produce silicon nitride which retains the whisker or needle morphological characteristics of the silicon disulfide. Silicon carbide, e.g. in the form of whiskers, also can be prepared by reacting substituted ammonia, e.g. methylamine, or a hydrocarbon containing active hydrogen-containing groups, such as ethylene, with silicon disulfide, at elevated temperature, e.g. 900.degree. C.

Morgan, Peter E. D. (Thousand Oaks, CA); Pugar, Eloise A. (Newbury Park, CA)

1985-01-01T23:59:59.000Z

472

Effects of sudden expansion and contraction flow on pressure drops in the Stirling engine regenerator  

SciTech Connect (OSTI)

The flow losses in the regenerators greatly influence the performance of the Stirling engine. The losses mainly depend on fluid friction through the regenerator matrix, but are also generated in sudden expansion and contraction flow at the regenerator ends. The latter losses can't be neglected in the case of small area ratio (entrance area/cross-sectional area in regenerator). The pressure drops in regenerators are usually estimated assuming a uniform velocity distribution of working gas in the matrices. The estimation results, however, are generally smaller than practical data. The cross-sectional flow areas of the heater and cooler of typical Stirling engines are smaller than the cross- sectional area of the regenerator. The effects of the small flow passage on the velocity distribution of working fluid in the matrix, that is, a flow transition from tubes or channels to a regenerator matrix, can be often confirmed by the discolored matrix. Especially, the lack of a uniform distribution of velocity in the matrix causes increased flow loss and decreased thermal performance. So, it is necessary to understand the quantitative effects of the sudden change in flow area at the regenerator ends on the velocity distribution and pressure drop. In this paper, using matrices made of stacks of wire screens, the effects of the entrance and exit areas and the length of the regenerator on pressure drops are examined by an unidirectional steady flow apparatus. The experimental data are arranged in an empirical equation. The lack of a uniformity of velocity distribution is visualized using smoke-wire methods. The empirical equation presented is applied to the estimation of pressure loss in an actual engine regenerator. The applicability of the equation is examined by comparison of estimated value with engine data in pressure loss.

Hamaguchi, K.; Yamashita, I.; Hirata, K.

1998-07-01T23:59:59.000Z

473

Supplementation with xylanase and beta-xylosidase to reduce xylo-oligomer and xylan inhibition of enzymatic hydrolysis of cellulose and pretreated corn stover  

E-Print Network [OSTI]

in pretreated biomass through conversion of xylan and xylo-dioxide makes conversion of cellulosic biomass to ethanol

Qing, Qing; Wyman, Charles E

2011-01-01T23:59:59.000Z

474

Assembly of Xylanases into Designer Cellulosomes Promotes Efficient Hydrolysis of the Xylan Component of a Natural Recalcitrant Cellulosic Substrate  

Science Journals Connector (OSTI)

...Cellulosomes Promotes Efficient Hydrolysis of the Xylan Component of a Natural Recalcitrant Cellulosic...cellulosomes promotes efficient hydrolysis of the xylan component of a natural recalcitrant cellulosic...hemicelluloses, a major component of which is xylan. In order to enhance enzymatic degradation...

Sarah Moraïs; Yoav Barak; Yitzhak Hadar; David B. Wilson; Yuval Shoham; Raphael Lamed; Edward A. Bayer

2011-12-01T23:59:59.000Z

475

BIOTECHNOLOGICALLY RELEVANT ENZYMES AND PROTEINS Fusion  

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

Fusion Fusion of a family 9 cellulose-binding module improves catalytic potential of Clostridium thermocellum cellodextrin phosphorylase on insoluble cellulose Xinhao Ye & Zhiguang Zhu & Chenming Zhang & Y.-H. Percival Zhang Received: 31 March 2011 / Revised: 2 May 2011 / Accepted: 3 May 2011 # Springer-Verlag (outside the USA) 2011 Abstract Clostridium thermocellum cellodextrin phosphor- ylase (CtCDP), a single-module protein without an apparent carbohydrate-binding module, has reported activities on soluble cellodextrin with a degree of polymerization (DP) from two to five. In this study, CtCDP was first discovered to have weak activities on weakly water-soluble cellohep- taose and insoluble regenerated amorphous cellulose (RAC). To enhance its activity on solid cellulosic materials, four cellulose binding modules, e.g., CBM3 (type A) from C. thermocellum

476

One-Pot Synthesis of 5-Hydroxymethylfurfural by Cellulose Hydrolysis over Highly Active Bimodal Micro/Mesoporous H-ZSM-5 Catalyst  

Science Journals Connector (OSTI)

One-Pot Synthesis of 5-Hydroxymethylfurfural by Cellulose Hydrolysis over Highly Active Bimodal Micro/Mesoporous H-ZSM-5 Catalyst ... Direct synthesis of 5-hydroxymethylfurfural (5-HMF), a useful renewable biofuel and biochemical, was systematically studied by hydrolysis of microcrystalline cellulose over Bimodal-HZ-5 zeolite. ... Microcrystalline cellulose; Hydrolysis; Biomodal-HZ-5; Glucose; 5-Hydroxymethylfurfural ...

Kakasaheb Y. Nandiwale; Nitish D. Galande; Pratika Thakur; Sanjay D. Sawant; Vishal P. Zambre; Vijay V. Bokade

2014-06-16T23:59:59.000Z

477

Strong and Tough Cellulose Nanopaper with High Specific Surface Area and Porosity  

Science Journals Connector (OSTI)

After all NaClO was consumed, the pulp fibers were filtered and washed several times with deionized water until the filtrate solution was neutral. ... 300 mg solid content of cellulose) was diluted to ca. 0.1 wt %, degassed, and filtrated on top of a 0.65 ?m filter membrane (DVPP, Millipore) until a strong hydrogel is formed (see picture of the hydrogel in Figure 1b). ... The results are preliminary but demonstrate the ability of this method to give cellulose aerogels of large surface areas (400-500 m2 g-1) which may be useful as adsorbents, heat/sound insulators, filters, catalyst supports, or carbon aerogel precursors. ...

Houssine Sehaqui; Qi Zhou; Olli Ikkala; Lars A. Berglund

2011-09-02T23:59:59.000Z

478

Cellulose and cellobiose: adventures of a wandering organic chemist in theoretical chemistry  

SciTech Connect (OSTI)

The energies arising from the rotation of free hydroxyl groups in the central glucose residue of a cellulose crystalline assembly, calculated using RHF, DFT, and FMO2/MP2 methods, will be presented. In addition, interactions of this central glucose residue with some of the surrounding residues (selected on the basis of the interaction strengths) are analyzed. The mechanism of acid-catalyzed hydrolysis of cellobiose, which is the repeating unit of cellulose. Energies corresponding to the different steps of this mechanism calculated using RHF and DFT are compared with those previously reported using molecular dynamics calculations and with experimental data.

Baluyut, John

2012-04-03T23:59:59.000Z

479

Land-use change and greenhouse gas emissions from corn and cellulosic  

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

Science Science Computing, Environment & Life Sciences Energy Engineering & Systems Analysis Photon Sciences Physical Sciences & Engineering Energy Frontier Research Centers Science Highlights Postdoctoral Researchers Land-use change and greenhouse gas emissions from corn and cellulosic ethanol July 16, 2013 Tweet EmailPrint The greenhouse gas (GHG) emissions that may accompany land-use change (LUC) from increased biofuel feedstock production are a source of debate in the discussion of drawbacks and advantages of biofuels. Estimates of LUC GHG emissions focus mainly on corn ethanol and vary widely. Increasing the understanding of LUC GHG impacts associated with both corn and cellulosic ethanol will inform the on-going debate concerning their magnitudes and

480

Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars  

DOE Patents [OSTI]

A method is described for separating lignocellulosic material into (a) lignin, (b) cellulose, and (c) hemicellulose and dissolved sugars. Wood or herbaceous biomass is digested at elevated temperature in a single-phase mixture of alcohol, water and a water-immiscible organic solvent (e.g., a ketone). After digestion, the amount of water or organic solvent is adjusted so that there is phase separation. The lignin is present in the organic solvent, the cellulose is present in a solid pulp phase, and the aqueous phase includes hemicellulose and any dissolved sugars.

Black, S.K.; Hames, B.R.; Myers, M.D.

1998-03-24T23:59:59.000Z

Note: This page contains sample records for the topic "regenerated amorphous cellulose" 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

Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars  

DOE Patents [OSTI]

A method for separating lignocellulosic material into (a) lignin, (b) cellulose, and (c) hemicellulose and dissolved sugars. Wood or herbaceous biomass is digested at elevated temperature in a single-phase mixture of alcohol, water and a water-immiscible organic solvent (e.g., a ketone). After digestion, the amount of water or organic solvent is adjusted so that there is phase separation. The lignin is present in the organic solvent, the cellulose is present in a solid pulp phase, and the aqueous phase includes hemicellulose and any dissolved sugars.

Black, Stuart K. (Denver, CO); Hames, Bonnie R. (Westminster, CO); Myers, Michele D. (Dacono, CO)

1998-01-01T23:59:59.000Z

482

Electronic structures of GeSe2 in crystalline, amorphous, and Ag-photodoped amorphous phases studied by photoemission and optical spectra  

Science Journals Connector (OSTI)

Both valence and conduction bands in crystalline, amorphous, and Ag-photodoped GeSe2 are studied by a combination of photoemission, core-exciton, and reflectance spectra by the use of synchrotron radiation. Two conduction-band levels are clarified through observation of Se and Ge 3d core-exciton spectra in both crystalline and amorphous phases. With use of the two conduction-band states and valence-band structures observed in the photoemission spectra, the fine structures in the energy second derivative of the dielectric-response spectra in the region of 1–20 eV are successfully interpreted. The fine structures in the amorphous spectra closely correspond to those in the crystalline spectra in energy. The binding energy of the lowest core excitons in amorphous GeSe2 is slightly smaller than that in the crystal. Core excitons are found to be smeared out in photodoped spectra.

Koichi Inoue; Toshiharu Katayama; Koji Kawamoto; Kazuo Murase

1987-05-15T23:59:59.000Z

483

Increasing cellulose accessibility is more important than removing lignin: A comparison of cellulose solventbased lignocellulose fractionation and soaking in aqueous ammonia  

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

Increasing Increasing Cellulose Accessibility Is More Important Than Removing Lignin: A Comparison of Cellulose Solvent-Based Lignocellulose Fractionation and Soaking in Aqueous Ammonia Joseph A. Rollin, 1 Zhiguang Zhu, 1 Noppadon Sathitsuksanoh, 1,2 Y.-H. Percival Zhang 1,2,3 1 Biological Systems Engineering Department, Virginia Polytechnic Institute and State University, 210-A Seitz Hall, Blacksburg, Virginia 24061; telephone: 1-540-231-7414; fax: þ1- 540-231-3199; e-mail: ypzhang@vt.edu 2 Institute for Critical Technology and Applied Sciences (ICTAS), Virginia Polytechnic Institute and State University, Blacksburg, Virginia 3 DOE BioEnergy Science Center (BESC), Oak Ridge, Tennessee Received 18 May 2010; revision received 11 August 2010; accepted 17 August 2010 Published online 1 September 2010 in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/bit.22919

484

Improved amorphous silicon alloy solar cells for module fabrication  

SciTech Connect (OSTI)

An initial conversion efficiency of 13.5% has been obtained on a triple-junction triple-bandgap device fabricated in a large-area deposition reactor capable of producing one-square-foot modules. The intrinsic layer of the top cell is a wide bandgap amorphous silicon alloy. The middle and bottom cells employ high quality amorphous silicon-germanium alloy. The high efficiency of the triple-junction cell is attributed to the relative reduction of the optical loss in the top tunnel junction and the improvement in the quality of the middle and bottom component cells. Triple-junction devices with initial efficiency of 13.3% have shown saturation at 11.6% after light soaking. Modules of aperture area 909 cm{sup 2} have been fabricated using an assembly process similar to the one being currently used in their manufacturing line. The module design consists of one large-area, high-current monolithic multijunction device. The status of the small-area devices and modules is described.

Banerjee, A.; Yang, J.; Guha, S.

1997-07-01T23:59:59.000Z

485

LASER TRANSFER DOPING USING AMORPHOUS SILICON Rafel Ferr (Correspondence author)1  

E-Print Network [OSTI]

LASER TRANSFER DOPING USING AMORPHOUS SILICON Rafel Ferré (Correspondence author)1 , Ralf Gogolin1@isfh.de ABSTRACT: We demonstrate and characterize "Laser Transfer Doping" (LTD) for producing locally doped regions. For this purpose we use nanosecond pulsed laser for transferring phosphorus doped amorphous silicon from a carrier

486

Sputtered pin amorphous silicon semi-conductor device and method therefor  

DOE Patents [OSTI]

A high efficiency amorphous silicon PIN semi-conductor device is constructed by the sequential sputtering of N, I and P layers of amorphous silicon and at least one semi-transparent ohmic electrode. A method of construction produces a PIN device, exhibiting enhanced physical integrity and facilitates ease of construction in a singular vacuum system and vacuum pump down procedure.

Moustakas, Theodore D. (Berkeley Heights, NJ); Friedman, Robert A. (Milford, NJ)

1983-11-22T23:59:59.000Z

487

Short-and intermediate-range structural correlations in amorphous silicon carbide: A molecular dynamics study  

E-Print Network [OSTI]

Short- and intermediate-range structural correlations in amorphous silicon carbide: A molecular-range structural correlations in amorphous silicon carbide a-SiC are studied in terms of partial pair distributions.43.Dq, 61.43.Bn, 61.66.Dk, 81.05.Gc I. INTRODUCTION Silicon carbide SiC has been receiving increasing

Southern California, University of

488

Electroabsorption measurements and built-in potentials in amorphous silicongermanium solar cells  

E-Print Network [OSTI]

-1130 S. Guha and J. Yang United Solar Systems Corporation, 1100 West Maple Road, Troy, Michigan 48084Electroabsorption measurements and built-in potentials in amorphous silicon­germanium solar cells J spectra in n-i-p solar cells with hydrogenated amorphous silicon­germanium alloy absorber layers. At lower

Schiff, Eric A.

489

Surface tension of amorphous polymer lms Thorsten Hapke, Gerald Patzold, and Dieter W. Heermann  

E-Print Network [OSTI]

Surface tension of amorphous polymer lms Thorsten Hapke, Gerald Patzold, and Dieter W. Heermann study the surface tension for thin, amorphous polymer lms by means of computer simulation. In the framework of molecular dynamics, we present surface tension measurements via the uctuation spectrum

Heermann, Dieter W.

490

Upconversion emission from amorphous Y2O3:Tm3+ prepared by  

E-Print Network [OSTI]

Upconversion emission from amorphous Y2O3:Tm3+ , Yb3+ prepared by nanosecond pulsed laser that the material produced by laser irradiation is amorphous, which presents strong blue upcon- version emission under the excitation of 976 nm diode laser. The relative intensity of the blue emission to the infrared

Cao, Wenwu

491

Atomic hydrogen interactions with amorphous carbon thin films Bhavin N. Jariwala,1  

E-Print Network [OSTI]

Atomic hydrogen interactions with amorphous carbon thin films Bhavin N. Jariwala,1 Cristian V-scale interactions of H atoms with hydrogenated amorphous carbon a-C:H films were identified using molecular dynamics through a detailed analysis of the MD trajectories. The MD simulations showed that hydrogenation occurs

Ciobanu, Cristian

492

Regenerable Immobilized Aminosilane Sorbents for Carbon Dioxide Capture  

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

Immobilized Aminosilane Sorbents Immobilized Aminosilane Sorbents for Carbon Dioxide Capture Opportunity Research is currently active on the patent-pending technology titled "Regenerable Immobilized Aminosilane Sorbents for Carbon Dioxide Capture." The technology is available for licensing and/or further collaborative research from the U.S. Department of Energy's National Energy Technology Laboratory. Overview Carbon sequestration entails a multi-step process in which CO 2 is first separated / captured from gas streams followed by permanent storage. Carbon capture represents a critical step in the process and accounts for a considerable portion of the overall cost. Newly developed, high capacity amine-based sorbents offer many advantages over existing technology including increased CO

493

Lean Gasoline Engine Reductant Chemistry During Lean NOx Trap Regeneration  

SciTech Connect (OSTI)

Lean NOx Trap (LNT) catalysts can effectively reduce NOx from lean engine exhaust. Significant research for LNTs in diesel engine applications has been performed and has led to commercialization of the technology. For lean gasoline engine applications, advanced direct injection engines have led to a renewed interest in the potential for lean gasoline vehicles and, thereby, a renewed demand for lean NOx control. To understand the gasoline-based reductant chemistry during regeneration, a BMW lean gasoline vehicle has been studied on a chassis dynamometer. Exhaust samples were collected and analyzed for key reductant species such as H2, CO, NH3, and hydrocarbons during transient drive cycles. The relation of the reductant species to LNT performance will be discussed. Furthermore, the challenges of NOx storage in the lean gasoline application are reviewed.

Choi, Jae-Soon [ORNL] [ORNL; Prikhodko, Vitaly Y [ORNL] [ORNL; Partridge Jr, William P [ORNL] [ORNL; Parks, II, James E [ORNL; Norman, Kevin M [ORNL] [ORNL; Huff, Shean P [ORNL] [ORNL; Chambon, Paul H [ORNL] [ORNL; Thomas, John F [ORNL] [ORNL

2010-01-01T23:59:59.000Z

494

MHD seed recovery and regeneration, Phase II. Final report  

SciTech Connect (OSTI)

This final report summarizes the work performed by the Space and Technology Division of the TRW Space and Electronics Group for the U.S. Department of Energy, Pittsburgh Energy Technology Center for the Econoseed process. This process involves the economical recovery and regeneration of potassium seed used in the MHD channel. The contract period of performance extended from 1987 through 1994 and was divided into two phases. The Phase II test results are the subject of this Final Report. However, the Phase I test results are presented in summary form in Section 2.3 of this Final Report. The Econoseed process involves the treatment of the potassium sulfate in spent MHD seed with an aqueous calcium formate solution in a continuously stirred reactor system to solubilize, as potassium formate, the potassium content of the seed and to precipitate and recover the sulfate as calcium sulfate. The slurry product from this reaction is centrifuged to separate the calcium sulfate and insoluble seed constituents from the potassium formate solution. The dilute solids-free potassium formate solution is then concentrated in an evaporator. The concentrated potassium formate product is a liquid which can be recycled as a spray into the MHD channel. Calcium formate is the seed regenerant used in the Econoseed process. Since calcium formate is produced in the United States in relatively small quantities, a new route to the continuous production of large quantities of calcium formate needed to support an MHD power industry was investigated. This route involves the reaction of carbon monoxide gas with lime solids in an aqueous medium.

Not Available

1994-10-01T23:59:59.000Z

495

Does Adjuvant Radiotherapy Suppress Liver Regeneration After Partial Hepatectomy?  

SciTech Connect (OSTI)

Purpose: To analyze the influence of the adjuvant radiotherapy (RT) on the liver regeneration and liver function after partial hepatectomy (PH). Methods and Materials: Thirty-four patients who underwent PH for biliary tract cancer between October 2003 and July 2005 were reviewed. Hemihepatectomy was performed in 14 patients and less extensive surgery in 20. Of the patients, 19 patients had no adjuvant therapy (non-RT group) and 15 underwent adjuvant RT by a three-dimensional conformal technique (RT group). Radiation dose range was 40 to 50 Gy (median, 40 Gy). Liver volume on computed tomography and the results of liver function tests at 1, 4, 12, 24, and 52 weeks after PH were compared between the RT and non-RT groups. Results: The preoperative characteristics were identical for both groups. During the interval between Weeks 4 and 12 when adjuvant RT was delivered in the RT group, the increase in liver volume was significantly smaller in the RT group than non-RT group (22.9 {+-} 38.3cm{sup 3} and 81.5 {+-} 75.6cm{sup 3}, respectively, p = 0.007). However, the final liver volume measured at 1 year after PH did not differ between the two groups (p = 0.878). Liver function tests were comparable for both groups. The resection extent and original liver volume was independent factors for final liver volume measured at 1 year after PH. Conclusions: In this study, adjuvant RT delayed the liver regeneration process after PH, but the volume difference between the two study groups became nonsignificant after 1 year. Adjuvant RT had no additional adverse effect on liver function after PH.

Choi, Jin-Hwa; Kim, Kyubo [Department of Radiation Oncology, Seoul National University College of Medicine, Seoul (Korea, Republic of); Chie, Eui Kyu [Department of Radiation Oncology, Seoul National University College of Medicine, Seoul (Korea, Republic of)], E-mail: ekchie93@snu.ac.kr; Jang, Jin-Young; Kim, Sun Whe [Department of Surgery, Seoul National University College of Medicine, Seoul (Korea, Republic of); Oh, Do-Youn; Im, Seock-Ah; Kim, Tae-You; Bang, Yung-Jue [Department of Internal Medicine, Seoul National University College of Medicine, Seoul (Korea, Republic of); Ha, Sung W. [Department of Radiation Oncology, Seoul National University College of Medicine, Seoul (Korea, Republic of); Institute of Radiation Medicine, Medical Research Center, Seoul National University, Seoul (Korea, Republic of)

2009-05-01T23:59:59.000Z

496

Augmenter of liver regeneration (ALR) protects human hepatocytes against apoptosis  

SciTech Connect (OSTI)

Research highlights: {yields} ALR decreases cytochrome c release from mitochondria. {yields} ALR protects hepatocytes against apoptosis induction by ethanol, TRAIL, anti-Apo, TGF-{beta} and actinomycin D. {yields} ALR exerts a liver-specific anti-apoptotic effect. {yields} A possible medical usage of ALR regarding protection of liver cells during apoptosis inducing therapies. -- Abstract: Augmenter of liver regeneration (ALR) is known to support liver regeneration and to stimulate proliferation of hepatocytes. However, it is not known if ALR exerts anti-apoptotic effects in human hepatocytes and whether this protective effect is cell type specific. This is relevant, because compounds that protect the liver against apoptosis without undesired effects, such as protection of metastatic tumour cells, would be appreciated in several clinical settings. Primary human hepatocytes (phH) and organotypic cancer cell lines were exposed to different concentrations of apoptosis inducers (ethanol, TRAIL, anti-Apo, TGF-{beta}, actinomycin D) and cultured with or without recombinant human ALR (rhALR). Apoptosis was evaluated by the release of cytochrome c from mitochondria and by FACS with propidium iodide (PI) staining. ALR significantly decreased apoptosis induced by ethanol, TRAIL, anti-Apo, TGF-{beta} and actinomycin D. Further, the anti-apoptotic effect of ALR was observed in primary human hepatocytes and in HepG2 cells but not in bronchial (BC1), colonic (SW480), gastric (GC1) and pancreatic (L3.6PL) cell lines. Therefore, the hepatotrophic growth factor ALR acts in a liver specific manner with regards to both its mitogenic and its anti-apoptotic effect. Unlike the growth factors HGF and EGF, rhALR acts in a liver specific manner. Therefore, ALR is a promising candidate for further evaluation as a possible hepatoprotective factor in clinical settings.

Ilowski, Maren [Liver Regeneration Group, Department of Surgery, Grosshadern Hospital, Ludwig Maximilians University, Munich (Germany)] [Liver Regeneration Group, Department of Surgery, Grosshadern Hospital, Ludwig Maximilians University, Munich (Germany); Kleespies, Axel [Department of Surgery, Grosshadern Hospital, Ludwig Maximilians University, Munich (Germany)] [Department of Surgery, Grosshadern Hospital, Ludwig Maximilians University, Munich (Germany); Toni, Enrico N. de [Department of Medicine II, Grosshadern Hospital, Ludwig Maximilians University, Munich (Germany)] [Department of Medicine II, Grosshadern Hospital, Ludwig Maximilians University, Munich (Germany); Donabauer, Barbara [Liver Regeneration Group, Department of Surgery, Grosshadern Hospital, Ludwig Maximilians University, Munich (Germany)] [Liver Regeneration Group, Department of Surgery, Grosshadern Hospital, Ludwig Maximilians University, Munich (Germany); Jauch, Karl-Walter [Department of Surgery, Grosshadern Hospital, Ludwig Maximilians University, Munich (Germany)] [Department of Surgery, Grosshadern Hospital, Ludwig Maximilians University, Munich (Germany); Hengstler, Jan G. [Leibniz Research Centre for Working Environment and Human Factors, Technical University, Dortmund (Germany)] [Leibniz Research Centre for Working Environment and Human Factors, Technical University, Dortmund (Germany); Thasler, Wolfgang E., E-mail: wolfgang.thasler@med.uni-muenchen.de [Liver Regeneration Group, Department of Surgery, Grosshadern Hospital, Ludwig Maximilians University, Munich (Germany); Department of Surgery, Grosshadern Hospital, Ludwig Maximilians University, Munich (Germany)

2011-01-07T23:59:59.000Z

497

Regeneration tests of a room temperature magnetic refrigerator and heat pump  

E-Print Network [OSTI]

A magnetic heat pump apparatus consisting of a solid magnetic refrigerant, gadolinium, and a liquid regenerator column of ethanol and water has been tested. Utilizing a 7T field, it produced a maximum temperature span of 80 K, and in separate tests, a lowest temperature of 241 K and a highest temperature of 328 K. Thermocouples, placed at intervals along the regenerator tube, permitted measurement of the temperature distribution in the regenerator fluid. No attempt was made to extract refrigeration from the device, but analysis of the temperature distributions shows that 34 watts of refrigeration was produced.

Brown, G V

2014-01-01T23:59:59.000Z

498

Hydrochloric Acid-Catalyzed Levulinic Acid Formation from Cellulose: Data and Kinetic  

E-Print Network [OSTI]

formation initially to HMF forma- tion later. VVC 2011 American Institute of Chemical Engineers AIChE J, 00 and chemicals.1 LA can be produced from glu- cose,2,3 cellulose,4,5 5-hydroxymethyl-2-furfural (HMF),6 normal, and Chemical and Environmental Engineering Dept., Bourns College of Engineering, University of California

California at Riverside, University of

499

Direct in Situ Observation of Synergism between Cellulolytic Enzymes during the Biodegradation of Crystalline Cellulose Fibers  

E-Print Network [OSTI]

Direct in Situ Observation of Synergism between Cellulolytic Enzymes during the Biodegradation types of T. reesei cellulolytic enzymes TrCel6A, TrCel7A, and TrCel7Band their mixtures. TrCel6A and Tr. When acting alone on native cellulose fibers, each of the three enzymes is incapable of significant

Dutcher, John

500

Biopolymer foams - Relationship between material characteristics and foaming behavior of cellulose based foams  

SciTech Connect (OSTI)

Biopolymers are becoming increasingly important to both industry and consumers. With regard to waste management, CO{sub 2} balance and the conservation of petrochemical resources, increasing efforts are being made to replace standard plastics with bio-based polymers. Nowadays biopolymers can be built for example of cellulose, lactic acid, starch, lignin or bio mass. The paper will present material properties of selected cellulose based polymers (cellulose propionate [CP], cellulose acetate butyrate [CAB]) and corresponding processing conditions for particle foams as well as characterization of produced parts. Special focus is given to the raw material properties by analyzing thermal behavior (differential scanning calorimetry), melt strength (Rheotens test) and molecular weight distribution (gel-permeation chromatography). These results will be correlated with the foaming behavior in a continuous extrusion process with physical blowing agents and underwater pelletizer. Process set-up regarding particle foam technology, including extrusion foaming and pre-foaming, will be shown. The characteristics of the resulting foam beads will be analyzed regarding part density, cell morphology and geometry. The molded parts will be tested on thermal conductivity as well as compression behavior (E-modulus, compression strength)

Rapp, F., E-mail: florian.rapp@ict.fraunhofer.de, E-mail: anja.schneider@ict.fraunhofer.de; Schneider, A., E-mail: florian.rapp@ict.fraunhofer.de, E-mail: anja.schneider@ict.fraunhofer.de [Fraunhofer Institute for Chemical Technology ICT (Germany); Elsner, P., E-mail: peter.elsner@ict.fraunhofer.de [Fraunhofer Institute for Chemical Technology ICT, Germany and Karlsruhe Institute of Technology KIT (Germany)

2014-05-15T23:59:59.000Z