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Note: This page contains sample records for the topic "finishing fiber yarn" 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

Tunable micro-cavities in photonic band-gap yarns and optical fibers  

E-Print Network [OSTI]

The vision behind this work is the fabrication of high performance innovative fiber-based optical components over kilometer length-scales. The optical properties of these fibers derive from their multilayer dielectric ...

Benoit, Gilles, Ph. D. Massachusetts Institute of Technology

2006-01-01T23:59:59.000Z

2

Structure and yarn sensor for fabric  

DOE Patents [OSTI]

A structure and yarn sensor for fabric directly determines pick density in a fabric thereby allowing fabric length and velocity to be calculated from a count of the picks made by the sensor over known time intervals. The structure and yarn sensor is also capable of detecting full length woven defects and fabric. As a result, an inexpensive on-line pick (or course) density measurement can be performed which allows a loom or knitting machine to be adjusted by either manual or automatic means to maintain closer fiber density tolerances. Such a sensor apparatus dramatically reduces fabric production costs and significantly improves fabric consistency and quality for woven or knitted fabric.

Mee, David K. (Knoxville, TN); Allgood, Glenn O. (Powell, TN); Mooney, Larry R. (Knoxville, TN); Duncan, Michael G. (Clinton, TN); Turner, John C. (Clinton, TN); Treece, Dale A. (Knoxville, TN)

1998-01-01T23:59:59.000Z

3

Structure and yarn sensor for fabric  

DOE Patents [OSTI]

A structure and yarn sensor for fabric directly determines pick density in a fabric thereby allowing fabric length and velocity to be calculated from a count of the picks made by the sensor over known time intervals. The structure and yarn sensor is also capable of detecting full length woven defects and fabric. As a result, an inexpensive on-line pick (or course) density measurement can be performed which allows a loom or knitting machine to be adjusted by either manual or automatic means to maintain closer fiber density tolerances. Such a sensor apparatus dramatically reduces fabric production costs and significantly improves fabric consistency and quality for woven or knitted fabric. 13 figs.

Mee, D.K.; Allgood, G.O.; Mooney, L.R.; Duncan, M.G.; Turner, J.C.; Treece, D.A.

1998-10-20T23:59:59.000Z

4

Acoustic methods to monitor sliver linear density and yarn strength  

DOE Patents [OSTI]

Methods and apparatus are provided for monitoring sliver and yarn characteristics. Transverse waves are generated relative to the sliver or yarn. At least one acoustic sensor is in contact with the sliver or yarn for detecting waves coupled to the sliver or yarn and for generating a signal. The generated signal is processed to identify the predefined characteristics including sliver or yarn linear density. The transverse waves can be generated with a high-powered acoustic transmitter spaced relative to the sliver or yarn with large amplitude pulses having a central frequency in a range between 20 KHz and 40 KHz applied to the transmitter. The transverse waves can be generated by mechanically agitating the sliver or yarn with a tapping member.

Sheen, Shuh-Haw (Naperville, IL); Chien, Hual-Te (Naperville, IL); Raptis, Apostolos C. (Downers Grove, IL)

1997-01-01T23:59:59.000Z

5

Method for sizing and desizing yarns with liquid and supercritical carbon dioxide solvent  

DOE Patents [OSTI]

Disclosed is a method of sizing and desizing yarn, or more specifically to a method of coating yarn with size and removing size from yarn with liquid carbon dioxide solvent. 3 figs.

Fulton, J.L.; Yonker, C.R.; Hallen, R.R.; Baker, E.G.; Bowman, L.E.; Silva, L.J.

1999-01-26T23:59:59.000Z

6

Hybrid yarn for thermoplastic fibre composites Publications Department  

E-Print Network [OSTI]

. Contents Introduction Wind Turbine Blade Inspection Cover for a Wind Turbine Blade Car Door-Post Air fabrics is suitable for fabrication of larger parts such as wind turbine blades, and press consolidation Texturing of the Hybrid Yarn Materials and Mechanical Properties Press Consolidation of Hybrid Yarn Fabrics

7

Method and apparatus for sizing and separating warp yarns using acoustical energy  

DOE Patents [OSTI]

A slashing process for preparing warp yarns for weaving operations including the steps of sizing and/or desizing the yarns in an acoustic resonance box and separating the yarns with a leasing apparatus comprised of a set of acoustically agitated lease rods. The sizing step includes immersing the yarns in a size solution contained in an acoustic resonance box. Acoustic transducers are positioned against the exterior of the box for generating an acoustic pressure field within the size solution. Ultrasonic waves that result from the acoustic pressure field continuously agitate the size solution to effect greater mixing and more uniform application and penetration of the size onto the yarns. The sized yarns are then separated by passing the warp yarns over and under lease rods. Electroacoustic transducers generate acoustic waves along the longitudinal axis of the lease rods, creating a shearing motion on the surface of the rods for splitting the yarns.

Sheen, Shuh-Haw (Naperville, IL); Chien, Hual-Te (Naperville, IL); Raptis, Apostolos C. (Downers Grove, IL); Kupperman, David S. (Oak Park, IL)

1998-01-01T23:59:59.000Z

8

Method and apparatus for sizing and separating warp yarns using acoustical energy  

DOE Patents [OSTI]

A slashing process is disclosed for preparing warp yarns for weaving operations including the steps of sizing and/or desizing the yarns in an acoustic resonance box and separating the yarns with a leasing apparatus comprised of a set of acoustically agitated lease rods. The sizing step includes immersing the yarns in a size solution contained in an acoustic resonance box. Acoustic transducers are positioned against the exterior of the box for generating an acoustic pressure field within the size solution. Ultrasonic waves that result from the acoustic pressure field continuously agitate the size solution to effect greater mixing and more uniform application and penetration of the size onto the yarns. The sized yarns are then separated by passing the warp yarns over and under lease rods. Electroacoustic transducers generate acoustic waves along the longitudinal axis of the lease rods, creating a shearing motion on the surface of the rods for splitting the yarns. 2 figs.

Sheen, S.H.; Chien, H.T.; Raptis, A.C.; Kupperman, D.S.

1998-05-19T23:59:59.000Z

9

Multi-scale mechanical improvement produced in carbon nanotube fibers by irradiation cross-linking  

E-Print Network [OSTI]

Review Multi-scale mechanical improvement produced in carbon nanotube fibers by irradiation cross T Fibers and yarns based on carbon nanotubes (CNT) are emerging as a possible improve- ment over more traditional high strength carbon fibers used as reinforcement elements in composite materials. This is driven

Espinosa, Horacio D.

10

Independent Activity Report, Hanford Plutonium Finishing Plant...  

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

Plutonium Finishing Plant - May 2012 Independent Activity Report, Hanford Plutonium Finishing Plant - May 2012 May 2012 Criticality Safety Information Meeting for the Hanford...

11

Semi-finished modular cells  

E-Print Network [OSTI]

This thesis subject is a pre-fabricated element (cell): a system that employs natural, light, and economic materials to produce a near-finished portion of a building. The intent is to introduce sustainable design into ...

Bachelder, Laura Govoni, 1971-

2002-01-01T23:59:59.000Z

12

The association of fiber quality parameters and lint yield components of the F3 derived F4 progeny of two upland cotton populations  

E-Print Network [OSTI]

trait in the ring spinning technology, followed by fiber strength and fiber fineness. Rotor spinning requires first and foremost a good fiber strength because twist insertion does not take place under yarn tension. Fiber fineness is almost equafiy... length and strength concurred with the results of Miller (1965), Woodward and Maim (1976), and Scholl and Miller (1976) (Table 4). The positive correlation between length and strength, which does not agree with all literature, is encouraging since both...

Basal, Huseyin

1996-01-01T23:59:59.000Z

13

The Best Finish First: Sequence Finishing with Whole Genome Mapping ( 7th Annual SFAF Meeting, 2012)  

ScienceCinema (OSTI)

Deacon Sweeney on "the Best Finish First: Sequence Finishing with Whole Genome Mapping" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

Sweeney, Deacon [OpGen, Inc.

2013-03-22T23:59:59.000Z

14

High performance fibers. Final report  

SciTech Connect (OSTI)

A two and a half year ONR/ARPA funded program to develop a low cost process for manufacture of a high strength/high modulus sigma/E boron nitride (BN) fiber was initiated on 7/1/90 and ended on 12/31/92. The preparation of high sigma/E BN fibers had been demonstrated in the late 1960's by the PI using a batch nitriding of B2O3 fiber with NH3 followed by stress graphitization at approx. 2000 deg C. Such fibers displayed values comparable to PAN based carbon fibers but the mechanicals were variable most likely because of redeposition of volatiles at 2000 deg C. In addition, the cost of the fibers was very high due to the need for many hours of nitriding necessary to convert the B2O3 fibers. The use of batch nitriding negated two possible cost advantages of this concept, namely, the ease of drawing very fine, multi-filament yarn of B2O3 and more importantly the very low cost of the starting materials.

Economy, J.

1994-01-01T23:59:59.000Z

15

Carbon nanotube yarn strain sensors This article has been downloaded from IOPscience. Please scroll down to see the full text article.  

E-Print Network [OSTI]

Carbon nanotube yarn strain sensors This article has been downloaded from IOPscience. Please scroll Nanotechnology 21 (2010) 305502 (5pp) doi:10.1088/0957-4484/21/30/305502 Carbon nanotube yarn strain sensors nanotube (CNT) based sensors are often fabricated by dispersing CNTs into different types of polymer

Zhu, Yuntian T.

16

YARN: Animating Software Evolution Abram Hindle, Zhen Ming Jiang, Walid Koleilat, Michael W. Godfrey, Richard C. Holt  

E-Print Network [OSTI]

approach by visualizing the evolution of PostgreSQL DBMS. 1. Introduction Successful software systemsYARN: Animating Software Evolution Abram Hindle, Zhen Ming Jiang, Walid Koleilat, Michael W of software evolution is how to explore the aggregated and cumulative effects of changes that occur within

Godfrey, Michael W.

17

Y-12 Finishes Initial HEUMF Loading Ahead of Schedule | National...  

National Nuclear Security Administration (NNSA)

Home Field Offices Welcome to the NNSA Production Office NPO News Releases Y-12 Finishes Initial HEUMF Loading Ahead of Schedule Y-12 Finishes Initial HEUMF Loading...

18

Workers Create Demolition Zone at Hanford Site's Plutonium Finishing...  

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

Create Demolition Zone at Hanford Site's Plutonium Finishing Plant Workers Create Demolition Zone at Hanford Site's Plutonium Finishing Plant August 28, 2014 - 12:00pm Addthis The...

19

Plutonium finishing plant dangerous waste training plan  

SciTech Connect (OSTI)

This training plan describes general requirements, worker categories, and provides course descriptions for operation of the Plutonium Finish Plant (PFP) waste generation facilities, permitted treatment, storage and disposal (TSD) units, and the 90-Day Accumulation Areas.

ENTROP, G.E.

1999-05-24T23:59:59.000Z

20

NCMS PWB Surface Finishes Team project summary  

SciTech Connect (OSTI)

The NCMS PWB Surface Finishes Consortium is just about at the end of the five year program. Dozens of projects related to surface finishes and PWB solder-ability were performed by the team throughout the program, and many of them are listed in this paper. They are listed with a cross reference to where and when a technical paper was presented describing the results of the research. However, due to time and space constraints, this paper can summarize the details of only three of the major research projects accomplished by the team. The first project described is an ``Evaluation of PWB Surface Finishes.`` It describes the solderability, reliability, and wire bondability of numerous surface finishes. The second project outlined is an ``Evaluation of PWB Solderability Test Methods.`` The third project outlined is the ``Development and Evaluation of Organic Solderability Preservatives.``

Kokas, J.; DeSantis, C. [United Technologies Corp., Farmington, CT (United States). Hamilton Standard Div.; Wenger, G. [AT and T, New York, NY (United States)] [and others

1996-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Improved Microbe Assembly and Finishing Using 454 8kb Libraries  

SciTech Connect (OSTI)

Christian Buhay from Baylor College of Medicine's Human Genome Sequencing Center discusses microbial genome finishing strategies on June 3, 2010 at the "Sequencing, Finishing, Analysis in the Future" meeting in Santa Fe, NM

Buhay, Christian [Baylor College of Medicine's Human Genome Sequencing Center

2010-06-03T23:59:59.000Z

22

Nearly Finished Genomes Produced Using Gel Microdroplet Culturing (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

ScienceCinema (OSTI)

Michael Fitzsimmons from Los Alamos National Laboratory gives a talk titled "Nearly Finished Genomes Produced Using Gel Microdroplet Culturing" at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

Fitzsimmons, Michael [LANL

2013-01-25T23:59:59.000Z

23

Perspective on plating for precision finishing  

SciTech Connect (OSTI)

This paper is intended as an overview on platings for precision finishing operations. After a brief review of the two processes (polishing and precision machining) by which a coating on a part can be converted to a precision surface, the coatings which work successfully in these applications will be discussed. Then adhesion and stress aspects of deposits will be covered. Electroless nickel, which is a particularly attractive coating for precision finishing applications, will be discussed in some detail, from its early years as the Kanigen'' process to the present. Since microstructural changes in deposits are important for precision parts, this aspect will be covered for electroless nickel, copper and silver deposits. Lastly, some words will be directed at potential future electrodeposited coatings including nickel-phosphorus alloys, and various silver alloys. 41 refs., 16 figs., 1 tab.

Dini, J.W.

1991-04-01T23:59:59.000Z

24

Wearability of Portland Cement Concrete Pavement Finishes  

E-Print Network [OSTI]

Major Subject: Civil Engineering NEARABILITY OF PORTLAND CENENT CONCRETE PAPFNENT FIVISNFS A Thesis by Nilliam Rem NcKeen Approved as to style and content by: (Chairman of Committ e) (Nember) August 1971 ABSTRACT Hearabil'tv of Portland Cement... portland cement, and an air entrainment admixture. Standard laboratory tests were performed on all aggregates to determine their properties. iv The test specimens were molded in a controlled environmental room and the anpropriate surface finish (burlap...

McKeen, William Rew

1971-01-01T23:59:59.000Z

25

Improvement of Work-to-Break Characteristics of Cotton (Gossypium hirsutum L.) Fibers and Yarn through Breeding and Selection for Improved Fiber Elongation  

E-Print Network [OSTI]

elongation. Three different methodologies were used to obtain estimates of heritability; variance components, parent off-spring regression, and realized heritability using F3, F4, and F5 generation. No inbreeding was assumed because there was no family...

Osorio Marin, Juliana 1982-

2012-11-12T23:59:59.000Z

26

Figure and finish of grazing incidence mirrors  

SciTech Connect (OSTI)

Great improvement has been made in the past several years in the quality of optical components used in synchrotron radiation (SR) beamlines. Most of this progress has been the result of vastly improved metrology techniques and instrumentation permitting rapid and accurate measurement of the surface finish and figure on grazing incidence optics. A significant theoretical effort has linked the actual performance of components used as x-ray wavelengths to their topological properties as measured by surface profiling instruments. Next-generation advanced light sources will require optical components and systems to have sub-arc second surface figure tolerances. This paper will explore the consequences of these requirements in terms of manufacturing tolerances to see if the present manufacturing state-of-the-art is capable of producing the required surfaces. 15 refs., 14 figs., 2 tabs.

Takacs, P.Z. (Brookhaven National Lab., Upton, NY (USA)); Church, E.L. (Picatinny Arsenal, Dover, NJ (USA). Army Armament Research, Development and Engineering Center)

1989-08-01T23:59:59.000Z

27

Plutonium finishing plant safety systems and equipment list  

SciTech Connect (OSTI)

The Safety Equipment List (SEL) supports Analysis Report (FSAR), WHC-SD-CP-SAR-021 and the Plutonium Finishing Plant Operational Safety Requirements (OSRs), WHC-SD-CP-OSR-010. The SEL is a breakdown and classification of all Safety Class 1, 2, and 3 equipment, components, or system at the Plutonium Finishing Plant complex.

Bergquist, G.G.

1995-01-06T23:59:59.000Z

28

Standard Test Methods for Properties of Continuous Filament Carbon and Graphite Fiber Tows  

E-Print Network [OSTI]

1.1 These test methods cover the preparation and tensile testing of resin-impregnated and consolidated test specimens made from continuous filament carbon and graphite yarns, rovings, and tows to determine their tensile properties. 1.2 These test methods also cover the determination of the density and mass per unit length of the yarn, roving, or tow to provide supplementary data for tensile property calculation. 1.3 These test methods include a procedure for sizing removal to provide the preferred desized fiber samples for density measurement. This procedure may also be used to determine the weight percent sizing. 1.4 These test methods include a procedure for determining the weight percent moisture adsorption of carbon or graphite fiber. 1.5 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of t...

American Society for Testing and Materials. Philadelphia

1999-01-01T23:59:59.000Z

29

Plutonium Finishing Plant safety evaluation report  

SciTech Connect (OSTI)

The Plutonium Finishing Plant (PFP) previously known as the Plutonium Process and Storage Facility, or Z-Plant, was built and put into operation in 1949. Since 1949 PFP has been used for various processing missions, including plutonium purification, oxide production, metal production, parts fabrication, plutonium recovery, and the recovery of americium (Am-241). The PFP has also been used for receipt and large scale storage of plutonium scrap and product materials. The PFP Final Safety Analysis Report (FSAR) was prepared by WHC to document the hazards associated with the facility, present safety analyses of potential accident scenarios, and demonstrate the adequacy of safety class structures, systems, and components (SSCs) and operational safety requirements (OSRs) necessary to eliminate, control, or mitigate the identified hazards. Documented in this Safety Evaluation Report (SER) is DOE`s independent review and evaluation of the PFP FSAR and the basis for approval of the PFP FSAR. The evaluation is presented in a format that parallels the format of the PFP FSAR. As an aid to the reactor, a list of acronyms has been included at the beginning of this report. The DOE review concluded that the risks associated with conducting plutonium handling, processing, and storage operations within PFP facilities, as described in the PFP FSAR, are acceptable, since the accident safety analyses associated with these activities meet the WHC risk acceptance guidelines and DOE safety goals in SEN-35-91.

Not Available

1995-01-01T23:59:59.000Z

30

Use of Optical Mapping in Bacterial Genome Finishing  

SciTech Connect (OSTI)

Dibyendu Kumar from the University of Florida discusses whole-genome optical mapping to help validate bacterial genome assemblies on June 3, 2010 at the "Sequencing, Finishing, Analysis in the Future" meeting in Santa Fe, NM

Kumar, Dibyendu [University of Florida

2010-06-03T23:59:59.000Z

31

avaetapi finish oli: Topics by E-print Network  

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

Akvil? 2012-01-01 12 Wearability of Portland Cement Concrete Pavement Finishes Texas A&M University - TxSpace Summary: fine aggregate types: a siliceous sand (SF), also...

32

Progress Continues Toward Demolition of Hanford's Plutonium Finishing...  

Energy Savers [EERE]

Piece by piece, workers are safely and compliantly preparing to demolish a relic of Cold War plutonium production at the Hanford site. The Plutonium Finishing Plant was the final...

33

Worker Involvement Improves Safety at Hanford Site's Plutonium Finishing Plant  

Broader source: Energy.gov [DOE]

Employees at the Hanford site are working together to find new and innovative ways to stay safe at the Plutonium Finishing Plant, one of the site’s most complex decommissioning projects.

34

Solder flow over fine line PWB surface finishes  

SciTech Connect (OSTI)

The rapid advancement of interconnect technology has stimulated the development of alternative printed wiring board (PWB) surface finishes to enhance the solderability of standard copper and solder-coated surfaces. These new finishes are based on either metallic or organic chemistries. As part of an ongoing solderability study, Sandia National Laboratories has investigated the solder flow behavior of two azole-based organic solderability preservations, immersion Au, immersion Ag, electroless Pd, and electroless Pd/Ni on fine line copper features. The coated substrates were solder tested in the as-fabricated and environmentally-stressed conditions. Samples were processed through an inerted reflow machine. The azole-based coatings generally provided the most effective protection after aging. Thin Pd over Cu yielded the best wetting results of the metallic coatings, with complete dissolution of the Pd overcoat and wetting of the underlying Cu by the flowing solder. Limited wetting was measured on the thicker Pd and Pd over Ni finishes, which were not completely dissolved by the molten solder. The immersion Au and Ag finishes yielded the lowest wetted lengths, respectively. These general differences in solderability were directly attributed to the type of surface finish which the solder came in contact with. The effects of circuit geometry, surface finish, stressing, and solder processing conditions are discussed.

Hosking, F.M.; Hernandez, C.L.

1998-08-01T23:59:59.000Z

35

Carbon Fiber  

ScienceCinema (OSTI)

Lee McGetrick leads ORNL's effort to produce light, durable carbon fiber at lower cost -- a key to improvements in manufacturing that will produce more fuel-efficient vehicles and other advances.

McGetrick, Lee

2014-07-23T23:59:59.000Z

36

Carbon Fiber  

SciTech Connect (OSTI)

Lee McGetrick leads ORNL's effort to produce light, durable carbon fiber at lower cost -- a key to improvements in manufacturing that will produce more fuel-efficient vehicles and other advances.

McGetrick, Lee

2014-04-17T23:59:59.000Z

37

Fiber optic temperature sensor  

SciTech Connect (OSTI)

Our fiber optic temperature measurement sensor and system is a major improvement over methods currently in use in most industrial processes, and it delivers all of the attributes required simplicity, accuracy, and cost efficiency-to help improve all of these processes. Because temperature is a basic physical attribute of nearly every industrial and commercial process, our system can eventually result in significant improvements in nearly every industrial and commercial process. Many finished goods, and the materials that go into them, are critically dependent on the temperature. The better the temperature measurement, the better quality the goods will be and the more economically they can be produced. The production and transmission of energy requires the monitoring of temperature in motors, circuit breakers, power generating plants, and transmission line equipment. The more reliable and robust the methods for measuring these temperature, the more available, stable, and affordable the supply of energy will become. The world is increasingly realizing the threats to health and safety of toxic or otherwise undesirable by products of the industrial economy in the environment. Cleanup of such contamination often depends on techniques that require the constant monitoring of temperature in extremely hazardous environments, which can damage most conventional temperature sensors and which are dangerous for operating personnel. Our system makes such monitoring safer and more economical.

Rabold, D.

1995-12-01T23:59:59.000Z

38

Digestible threonine requirement of starter and finisher swine  

E-Print Network [OSTI]

initially, 42 d trial duration) pigs, and two digestion trials (five starter and four finishei pigs) were conducted to determine the digestible threonine (Thr) requirement of starter and finisher pigs. Each trial evaluated control and basal diets..., and the basal diet plus four incr cmental additions of L-Thr (. 04, . 08, . 12 or . 16? for star ter and . 05, , 10, , 15, or . 20'7. for finisher diets). The basal diet used in the growth trial with starter pigs contained . 60%%u Thr, 17. 6A CP, and 1. 258...

Saldana, Carlos Ivan

1992-01-01T23:59:59.000Z

39

Cycle Time Prediction: When Will This Case Finally Be Finished?  

E-Print Network [OSTI]

number. Instead, this is usually the average cycle time of a case, combined with a certain marginCycle Time Prediction: When Will This Case Finally Be Finished? B.F. van Dongen, R.A. Crooy, and W into the remaining cycle time of a case, the current case can be compared to all past ones. The most trivial way

van der Aalst, Wil

40

Lead-Free Surface Finishes for Electronic Components  

E-Print Network [OSTI]

Lead-Free Surface Finishes for Electronic Components: Tin Whisker Growth METALS This project degraded by the switch to lead- free technology. In particular, the state of compressive stress and the localized creep response (whisker growth) of tin-based lead-free electrodeposits are being measured

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Specific Effects of Fiber Size and Fiber Swelling on Biomass...  

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

Effects of Fiber Size and Fiber Swelling on Biomass Substrate Surface Area and Enzymatic Digestibility. Specific Effects of Fiber Size and Fiber Swelling on Biomass Substrate...

42

Cost-effectiveness analysis of effluent standards and limitations for the metal finishing industry. Final report  

SciTech Connect (OSTI)

The report summarizes the results of a cost-effectiveness analysis of the metal finishing industry. The analysis considers the cost-effectiveness of the final metal finishing regulations for direct and indirect dischargers.

Not Available

1983-06-01T23:59:59.000Z

43

Method and system for processing optical elements using magnetorheological finishing  

DOE Patents [OSTI]

A method of finishing an optical element includes mounting the optical element in an optical mount having a plurality of fiducials overlapping with the optical element and obtaining a first metrology map for the optical element and the plurality of fiducials. The method also includes obtaining a second metrology map for the optical element without the plurality of fiducials, forming a difference map between the first metrology map and the second metrology map, and aligning the first metrology map and the second metrology map. The method further includes placing mathematical fiducials onto the second metrology map using the difference map to form a third metrology map and associating the third metrology map to the optical element. Moreover, the method includes mounting the optical element in the fixture in an MRF tool, positioning the optical element in the fixture; removing the plurality of fiducials, and finishing the optical element.

Menapace, Joseph Arthur; Schaffers, Kathleen Irene; Bayramian, Andrew James; Molander, William A

2012-09-18T23:59:59.000Z

44

Polyethylene fiber drawing optimization  

E-Print Network [OSTI]

Polymer fiber drawing creates fibers with enhanced thermal conductivity and strength compared to bulk polymer because drawing aligns the molecular chains. I optimize the polymer fiber drawing method in order to achieve ...

Chiloyan, Vazrik

2011-01-01T23:59:59.000Z

45

Multimaterial acoustic fibers  

E-Print Network [OSTI]

The emergence of multimaterial fibers that combine a multiplicity of solid materials with disparate electrical, optical, and mechanical properties into a single fiber presents new opportunities for extending fiber applications ...

Chocat, Noémie

2012-01-01T23:59:59.000Z

46

Fiber Lasers  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region service area. TheEPSCI HomeTours, Programs and EventsFiber Lasers NIF

47

Investigation into the effect of heat treatment on the thermal conductivity of 3-D carbon/carbon fiber composites  

SciTech Connect (OSTI)

The material used in this study was a carbon-carbon fiber composite manufactured from precursor yarn and petroleum based pitch through a process of repetitive densification of a woven preform. The resultant high temperature-high strength material exhibits relatively high thermal conductivity and is thus of interest to the fusion energy, plasma materials interactions (PMI) and plasma facing components (PFC) communities. Carbon-carbon fiber composite manufacture involves two distinct processes, preform weaving and component densification. In this study three samples were subjected to an additional heat treatment of 2550, 2750 or 3000{degree}C at Oak Ridge National Laboratory (ORNL) subsequent to their fourth graphitization at 2400{degree}C. It should be noted that no effort was made to optimize the composite for thermal conductivity, but rather only to provide a material with which to evaluate the effect of the final heat treatment temperature on the thermal conductivity. The fiber is the primary source of heat conduction in the composite. Consequently, increasing the fiber volume fraction, and/or the fiber thermal conductivity is expected to increase the composite thermal conductivity. 3 refs., 1 fig.

Dinwiddie, R.B.; Burchell, T.D. (Oak Ridge National Lab., TN (USA)); Baker, C.F. (Fiber Materials, Inc., Biddeford, ME (USA))

1991-01-01T23:59:59.000Z

48

Fiber optic connector  

DOE Patents [OSTI]

A fiber optic connector and method for connecting composite materials within which optical fibers are imbedded. The fiber optic connector includes a capillary tube for receiving optical fibers at opposing ends. The method involves inserting a first optical fiber into the capillary tube and imbedding the unit in the end of a softened composite material. The capillary tube is injected with a coupling medium which subsequently solidifies. The composite material is machined to a desired configuration. An external optical fiber is then inserted into the capillary tube after fluidizing the coupling medium, whereby the optical fibers are coupled.

Rajic, Slobodan (Knoxville, TN); Muhs, Jeffrey D. (Lenior City, TN)

1996-01-01T23:59:59.000Z

49

Carbon Fiber Technology Facility  

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

FY13Q4 * Forecast finish FY13Q2 * Currently in design phase * Barriers addressed - Cost - Inadequate supply base - Manufacturability * 34.77M Budget - No cost share * All...

50

Effectiveness and Serviceability of Four Home-applied Cotton Fabric Finishes.  

E-Print Network [OSTI]

subjected to physical and chemical tests to determine the effect of each finish on strength, color, cellulose degradation and other properties. At intervals throughout the study, the men who wore the shirts recorded their opinions of each finish..., stiffness, vrinltle recovery and cellulose degradation. Since there is no laboratory test method that ?;ill simulate actual wear, the fabric was made into sport shirts and the serviceability of the home-applied finishes was determined by a realistic...

Werman, Carolyn A.; Grimes, Mary Anna

1957-01-01T23:59:59.000Z

51

Economics of specialized integrated swine finishing operation in the Texas Panhandle  

E-Print Network [OSTI]

of Department (Member) (Member) C (Member) December 1971 ABSTRACT Economics of Specialized Swine Finishing Operation in the Texas Panhandle. (December 1971) Guyle Earl Cavin, B. S. , Texas Afd1 University Directed by: Dr. Donald E. Ferris The purpose... and finishing stage of production. The objectives of the study were to determine: (1) if a supply of good quality relatively disease-free feeder pigs is available in a supply sufficient to furnish an expanded increase in the swine finishing industry, (2...

Cavin, Guyle Earl

1971-01-01T23:59:59.000Z

52

EXTENDING FIBER RESOURCES: FIBER LOADING RECYCLED FIBER AND MECHANICAL PULPS FOR LIGHTWEIGHT, HIGH OPACITY PAPER  

E-Print Network [OSTI]

alkalinity, precipitates calcium carbonate (PCC) in situ within pulp fibers. Because paper made from fiber include increasing the recovery and utilization of recycled fiber and optimizing virgin fiber yieldEXTENDING FIBER RESOURCES: FIBER LOADING RECYCLED FIBER AND MECHANICAL PULPS FOR LIGHTWEIGHT, HIGH

Abubakr, Said

53

DTRA Algorithm Prize (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

ScienceCinema (OSTI)

Christian Whitchurch on the "DTRA Algorithm Prize" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

Whitechurch, Christian [Defense Threat Reduction Agency

2013-02-12T23:59:59.000Z

54

Voluntary Protection Program Onsite Review, Plutonium Finishing Plant Closure Project- May 2007  

Broader source: Energy.gov [DOE]

Evaluation to determine whether Plutonium Finishing Plant Closure Project is continuing to perform at a level deserving DOE-VPP Star recognition.

55

Multimaterial fiber electronics  

E-Print Network [OSTI]

As the number of materials that are thermally-drawable into fibers is rapidly expending, numerous new multimaterial fiber architectures can be envisioned and fabricated. High-melting temperature metals, compound materials, ...

Lestoquoy, Guillaume

2014-01-01T23:59:59.000Z

56

Omnidirectional fiber optic tiltmeter  

DOE Patents [OSTI]

A tiltmeter is provided which is useful in detecting very small movements such as earth tides. The device comprises a single optical fiber, and an associated weight affixed thereto, suspended from a support to form a pendulum. A light source, e.g., a light emitting diode, mounted on the support transmits light through the optical fiber to a group of further optical fibers located adjacent to but spaced from the free end of the single optical fiber so that displacement of the single optical fiber with respect to the group will result in a change in the amount of light received by the individual optical fibers of the group. Photodetectors individually connectd to the fibers produce corresponding electrical outputs which are differentially compared and processed to produce a resultant continuous analog output representative of the amount and direction of displacement of the single optical fiber.

Benjamin, B.C.; Miller, H.M.

1983-06-30T23:59:59.000Z

57

Plutonium Finishing Plant. Interim plutonium stabilization engineering study  

SciTech Connect (OSTI)

This report provides the results of an engineering study that evaluated the available technologies for stabilizing the plutonium stored at the Plutonium Finishing Plant located at the hanford Site in southeastern Washington. Further processing of the plutonium may be required to prepare the plutonium for interim (<50 years) storage. Specifically this document provides the current plutonium inventory and characterization, the initial screening process, and the process descriptions and flowsheets of the technologies that passed the initial screening. The conclusions and recommendations also are provided. The information contained in this report will be used to assist in the preparation of the environmental impact statement and to help decision makers determine which is the preferred technology to process the plutonium for interim storage.

Sevigny, G.J.; Gallucci, R.H.; Garrett, S.M.K.; Geeting, J.G.H.; Goheen, R.S.; Molton, P.M.; Templeton, K.J.; Villegas, A.J. [Pacific Northwest Lab., Richland, WA (United States); Nass, R. [Nuclear Fuel Services, Inc. (United States)

1995-08-01T23:59:59.000Z

58

Removal Rate Model for Magnetorheological Finishing of Glass  

SciTech Connect (OSTI)

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

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

2007-11-14T23:59:59.000Z

59

Helical Fiber Amplifier  

DOE Patents [OSTI]

A multi-mode gain fiber is provided which affords substantial improvements in the maximum pulse energy, peak power handling capabilities, average output power, and/or pumping efficiency of fiber amplifier and laser sources while maintaining good beam quality (comparable to that of a conventional single-mode fiber source). These benefits are realized by coiling the multimode gain fiber to induce significant bend loss for all but the lowest-order mode(s).

Koplow, Jeffrey P. (Washington, DC); Kliner, Dahy (San Ramon, CA); Goldberg, Lew (Fairfax, VA)

2002-12-17T23:59:59.000Z

60

Fiber optic coupled optical sensor  

DOE Patents [OSTI]

A displacement sensor includes a first optical fiber for radiating light to a target, and a second optical fiber for receiving light from the target. The end of the first fiber is adjacent and not axially aligned with the second fiber end. A lens focuses light from the first fiber onto the target and light from the target onto the second fiber.

Fleming, Kevin J. (Albuquerque, NM)

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Computer Aided Design of Automotive Finishes Gary Meyer and Clement Shimizu  

E-Print Network [OSTI]

Computer Aided Design of Automotive Finishes Gary Meyer and Clement Shimizu Department of Computer The principles of computer aided design were applied to the creation of new automotive finishes. A computer of an automotive paint and visualize the appearance of that paint on a three dimensional surface. The program gives

Minnesota, University of

62

Hanford Workers Achieve Success in Difficult Glove Box Project at Plutonium Finishing Plant  

Broader source: Energy.gov [DOE]

RICHLAND, Wash. – EM’s Richland Operations Office and contractor CH2M HILL Plateau Remediation Company (CH2M HILL) recently finished safely separating three glove boxes for removal from Hanford’s Plutonium Finishing Plant (PFP) after months of planning and preparation.

63

Fiber coating method  

DOE Patents [OSTI]

A coating is applied to reinforcing fibers arranged into a tow by coaxially aligning the tow with an adjacent separation layer and winding or wrapping the tow and separation layer onto a support structure in an interleaved manner so that the separation layer separates a wrap of the tow from an adjacent wrap of the tow. A coating can then be uniformly applied to the reinforcing fibers without defects caused by fiber tow to fiber tow contact. The separation layer can be a carbon fiber veil.

Corman, Gregory Scot (Ballston Lake, NY)

2003-04-15T23:59:59.000Z

64

Fiber optic laser rod  

DOE Patents [OSTI]

A laser rod is formed from a plurality of optical fibers, each forming an individual laser. Synchronization of the individual fiber lasers is obtained by evanescent wave coupling between adjacent optical fiber cores. The fiber cores are dye-doped and spaced at a distance appropriate for evanescent wave coupling at the wavelength of the selected dye. An interstitial material having an index of refraction lower than that of the fiber core provides the optical isolation for effective lasing action while maintaining the cores at the appropriate coupling distance. 2 figs.

Erickson, G.F.

1988-04-13T23:59:59.000Z

65

Fiber coating method  

DOE Patents [OSTI]

A coating is applied to reinforcing fibers arranged into a tow by coaxially aligning the tow with an adjacent separation layer and winding or wrapping the tow and separation layer onto a support structure in an interleaved manner so that the separation layer separates a wrap of the tow from an adjacent wrap of the tow. A coating can then be uniformly applied to the reinforcing fibers without defects caused by fiber tow to fiber tow contact. The separation layer can be a carbon fiber veil.

Corman, Gregory Scot (Ballston Lake, NY)

2001-01-01T23:59:59.000Z

66

Hybrid matrix fiber composites  

DOE Patents [OSTI]

Hybrid matrix fiber composites having enhanced compressive performance as well as enhanced stiffness, toughness and durability suitable for compression-critical applications. The methods for producing the fiber composites using matrix hybridization. The hybrid matrix fiber composites include two chemically or physically bonded matrix materials, whereas the first matrix materials are used to impregnate multi-filament fibers formed into ribbons and the second matrix material is placed around and between the fiber ribbons that are impregnated with the first matrix material and both matrix materials are cured and solidified.

Deteresa, Steven J.; Lyon, Richard E.; Groves, Scott E.

2003-07-15T23:59:59.000Z

67

Fiber optic vibration sensor  

DOE Patents [OSTI]

A fiber optic vibration sensor utilizes two single mode optical fibers supported by a housing with one optical fiber fixedly secured to the housing and providing a reference signal and the other optical fiber having a free span length subject to vibrational displacement thereof with respect to the housing and the first optical fiber for providing a signal indicative of a measurement of any perturbation of the sensor. Damping or tailoring of the sensor to be responsive to selected levels of perturbation is provided by altering the diameter of optical fibers or by immersing at least a portion of the free span length of the vibration sensing optical fiber into a liquid of a selected viscosity.

Dooley, Joseph B. (Harriman, TN); Muhs, Jeffrey D. (Lenoir City, TN); Tobin, Kenneth W. (Harriman, TN)

1995-01-01T23:59:59.000Z

68

Fiber optic vibration sensor  

DOE Patents [OSTI]

A fiber optic vibration sensor utilizes two single mode optical fibers supported by a housing with one optical fiber fixedly secured to the housing and providing a reference signal and the other optical fiber having a free span length subject to vibrational displacement thereof with respect to the housing and the first optical fiber for providing a signal indicative of a measurement of any perturbation of the sensor. Damping or tailoring of the sensor to be responsive to selected levels of perturbation is provided by altering the diameter of optical fibers or by immersing at least a portion of the free span length of the vibration sensing optical fiber into a liquid of a selected viscosity. 2 figures.

Dooley, J.B.; Muhs, J.D.; Tobin, K.W.

1995-01-10T23:59:59.000Z

69

Maintenance implementation plan for the Plutonium Finishing Plant. Revision 3  

SciTech Connect (OSTI)

This document outlines the Maintenance Implementation Plan (MIP) for the Plutonium Finishing Plant (PFP) located at the Hanford site at Richland, Washington. This MIP describes the PFP maintenance program relative to DOE order 4330.4B. The MIP defines the key actions needed to meet the guidelines of the Order to produce a cost-effective and efficient maintenance program. A previous report identified the presence of significant quantities of Pu-bearing materials within PFP that pose risks to workers. PFP`s current mission is to develop, install and operate processes which will mitigate these risks. The PFP Maintenance strategy is to equip the facility with systems and equipment able to sustain scheduled PFP operations. The current operating run is scheduled to last seven years. Activities following the stabilization operation will involve an Environmental Impact Statement (EIS) to determine future plant activities. This strategy includes long-term maintenance of the facility for safe occupancy and material storage. The PFP maintenance staff used the graded approach to dictate the priorities of the improvement and upgrade actions identified in Chapter 2 of this document. The MIP documents PFP compliance to the DOE 4330.4B Order. Chapter 2 of the MIP follows the format of the Order in addressing the eighteen elements. As this revision is a total rewrite, no sidebars are included to highlight changes.

Meldrom, C.A.

1996-03-01T23:59:59.000Z

70

Fire hazard analysis for Plutonium Finishing Plant complex  

SciTech Connect (OSTI)

A fire hazards analysis (FHA) was performed for the Plutonium Finishing Plant (PFP) Complex at the Department of Energy (DOE) Hanford site. The scope of the FHA focuses on the nuclear facilities/structures in the Complex. The analysis was conducted in accordance with RLID 5480.7, [DOE Directive RLID 5480.7, 1/17/94] and DOE Order 5480.7A, ''Fire Protection'' [DOE Order 5480.7A, 2/17/93] and addresses each of the sixteen principle elements outlined in paragraph 9.a(3) of the Order. The elements are addressed in terms of the fire protection objectives stated in paragraph 4 of DOE 5480.7A. In addition, the FHA also complies with WHC-CM-4-41, Fire Protection Program Manual, Section 3.4 [1994] and WHC-SD-GN-FHA-30001, Rev. 0 [WHC, 1994]. Objectives of the FHA are to determine: (1) the fire hazards that expose the PFP facilities, or that are inherent in the building operations, (2) the adequacy of the fire safety features currently located in the PFP Complex, and (3) the degree of compliance of the facility with specific fire safety provisions in DOE orders, related engineering codes, and standards.

MCKINNIS, D.L.

1999-02-23T23:59:59.000Z

71

Pollution prevention and water conservation in metals finishing operations  

SciTech Connect (OSTI)

Attleboro, Massachusetts is the headquarters of the Materials and Controls Group of Texas Instruments Incorporated (Texas Instruments). In support of their activities, Texas Instruments operates a number of metal finishing and electroplating processes. The water supply and the wastewater treatment requirements are supplied throughout the facility from a central location. Water supply quality requirements varies with each manufacturing operation. As a result, manufacturing operations are classified as either high level or a lower water quality. The facility has two methods of wastewater treatment and disposal. The first method involves hydroxide and sulfide metals precipitation prior to discharge to a surface water. The second method involves metals precipitation, filtration, and discharge via sewer to the Attleboro WTF. The facility is limited to a maximum wastewater discharge of 460,000 gallons per day to surface water under the existing National Pollution Discharge Elimination System (NPDES) permit. There is also a hydraulic flow restriction on pretreated wastewater that is discharged to the Attleboro WTF. Both of these restrictions combined with increased production could cause the facility to reach the treatment capacity. The net effect is that wastewater discharge problems are becoming restrictive to the company`s growth. This paper reviews Texas Instruments efforts to overcome these restrictions through pollution prevention and reuse practices rather than expansion of end of pipe treatment methods.

O`Shaughnessy, J.; Clark, W. [Worcester Polytechnic Inst., MA (United States); Lizotte, R.P. Jr.; Mikutel, D. [Texas Instruments Inc., Attleboro, MA (United States)

1996-11-01T23:59:59.000Z

72

Establishing an authorization basis for the Plutonium Finishing Plant  

SciTech Connect (OSTI)

In the summer of 1998, Hanford's Plutonium Finishing Plant (PFP) project prepared to restart its thermal stabilization process after 1(1/2)-yr suspension in operations. The facility had overcome a number of operational and safety problems, yet it had been unable to achieve appropriate update, approval, and implementation of an appropriate, current authorization basis. This problem threatened to prevent a timely restart, which, in turn, could have caused a loss in momentum and dampened enthusiasm within the facility. The authors describe the approach taken by B and W Hanford Company (BWHC) in conjunction with its partners, the US Department of Energy (DOE) Richland Operations Office and Fluor Daniel Hanford Company (FDH), to establish a defensible authorization basis, which allowed the facility to resume its mission of stabilizing reactive plutonium materials. The approach incorporates methods used within the DOE complex for short-term activities and those undergoing deactivation and implements principles of integrated safety management (ISM), as described in ``Defense Nuclear Facility Safety Board [(DNFSB)] Recommendation 95-2'' and related documents.

Roege, P.E.; Ramble, A.L.

1999-07-01T23:59:59.000Z

73

Optical Fibers Optics and Photonics  

E-Print Network [OSTI]

Optical Fibers Optics and Photonics Dr. Palffy-Muhoray Ines Busuladzic Department of Theoretical and Applied Mathematics The University of Akron April 21, 2008 #12;Outline · History of optical fibers · What are optical fibers? · How are optical fibers made? · Light propagation through optical fibers · Application

Palffy-Muhoray, Peter

74

Fiber composite flywheel rim  

DOE Patents [OSTI]

A flywheel comprising a hub having at least one radially projecting disc, an annular rim secured to said disc and providing a surface circumferential to said hub, a first plurality of resin-impregnated fibers wound about said rim congruent to said surface, and a shell enclosing said first plurality of fibers and formed by a second plurality of resin-impregnated fibers wound about said rim tangentially to said surface. 2 figs.

Davis, D.E.; Ingham, K.T.

1987-04-28T23:59:59.000Z

75

Continuous Fiber Ceramic Composites  

SciTech Connect (OSTI)

Fiber-reinforced ceramic composites demonstrate the high-temperature stability of ceramics--with an increased fracture toughness resulting from the fiber reinforcement of the composite. The material optimization performed under the continuous fiber ceramic composites (CFCC) included a series of systematic optimizations. The overall goals were to define the processing window, to increase the robustinous of the process, to increase process yield while reducing costs, and to define the complexity of parts that could be fabricated.

None

2002-09-01T23:59:59.000Z

76

Use of Optical Mapping to Aid in Assembly and Finishing of Human Microbiome Genome Projects  

SciTech Connect (OSTI)

Trevor Wagner of OpGen, Inc. discusses the use of optical mapping to validate the assembly of HMP genomes on June 3, 2010 at the "Sequencing, Finishing, Analysis in the Future" meeting in Santa Fe, NM

Wagner, Trevor [OpGen, Inc

2010-06-03T23:59:59.000Z

77

35461,"AECTRA REFG & MKTG",1,152,"MOTOR GAS, OTHER FINISHED"...  

U.S. Energy Information Administration (EIA) Indexed Site

& MKTG",3,152,"MOTOR GAS, OTHER FINISHED",1803,"JACKSONVILLE, FL","FLORIDA",1,428,"GERMANY",190,0,0,,,,, 35461,"AECTRA REFG & MKTG",4,152,"MOTOR GAS, OTHER...

78

Pilon: Automated Assembly Improvement Software (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

SciTech Connect (OSTI)

Bruce Walker on "Pilon: Automated Assembly Improvement Software" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

Walker, Bruce (Broad Institute) [Broad Institute

2012-06-01T23:59:59.000Z

79

Feeding Value of Wet Sorghum Distillers Grains for Growing and Finishing Beef Cattle  

E-Print Network [OSTI]

Feeding Value of Wet Sorghum Distillers Grains for Growing and Finishing Beef Cattle Ethanol, but sorghum grain is commonly either blended with corn before use or used as the sole grain for ethanol

80

Metagenomics for Etiologic Agent Discovery (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

ScienceCinema (OSTI)

Matthew Ross on "Metagenomics for etiological agent discovery" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

Ross, Matthew [Baylor College of Medicine

2013-02-11T23:59:59.000Z

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Signature Peptide-Enabled Metagenomics (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

ScienceCinema (OSTI)

Ben McMahon of Los Alamos National Laboratory (LANL) presents "Signature Peptide-Enabled Metagenomics" at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

McMahon, Ben [LANL

2013-01-25T23:59:59.000Z

82

Pilon: Automated Assembly Improvement Software (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

ScienceCinema (OSTI)

Bruce Walker on "Pilon: Automated Assembly Improvement Software" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

Walker, Bruce (Broad Institute)

2013-02-11T23:59:59.000Z

83

Technical Basis for Work Place Air Monitoring for the Plutonium Finishing Plan (PFP)  

SciTech Connect (OSTI)

This document establishes the basis for the Plutonium Finishing Plant's (PFP) work place air monitoring program in accordance with the following requirements: Title 10, Code of Federal Regulations (CFR), Part 835 ''Occupational Radiation Protection''; Hanford Site Radiological Control Manual (HSRCM-1); HNF-PRO-33 1, Work Place Air Monitoring; WHC-SD-CP-SAR-021, Plutonium Finishing Plant Final Safety Analysis Report; and Applicable recognized national standards invoked by DOE Orders and Policies.

JONES, R.A.

1999-10-06T23:59:59.000Z

84

Lower Cost Carbon Fiber Precursors  

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

performing fiber. (600-750 KSI) Barriers: Addresses the need for higher performance low cost fiber for hydrogen storage tanks and energy management structures of automobiles....

85

Diamond fiber field emitters  

DOE Patents [OSTI]

A field emission electron emitter comprising an electrode formed of at least one diamond, diamond-like carbon or glassy carbon composite fiber, said composite fiber having a non-diamond core and a diamond, diamond-like carbon or glassy carbon coating on said non-diamond core, and electronic devices employing such a field emission electron emitter.

Blanchet-Fincher, Graciela B. (Wilmington, DE); Coates, Don M. (Santa Fe, NM); Devlin, David J. (Los Alamos, NM); Eaton, David F. (Wilmington, DE); Silzars, Aris K. (Landenburg, PA); Valone, Steven M. (Santa Fe, NM)

1996-01-01T23:59:59.000Z

86

Multimode optical fiber  

DOE Patents [OSTI]

A depressed graded-index multimode optical fiber includes a central core, an inner depressed cladding, a depressed trench, an outer depressed cladding, and an outer cladding. The central core has an alpha-index profile. The depressed claddings limit the impact of leaky modes on optical-fiber performance characteristics (e.g., bandwidth, core size, and/or numerical aperture).

Bigot-Astruc, Marianne; Molin, Denis; Sillard, Pierre

2014-11-04T23:59:59.000Z

87

Expanded Beam Termini John McNeil  

E-Print Network [OSTI]

the acrylate, a tight PVC buffer is applied to the fiber. Aramid yarn (Kevlar) then surrounds the PVC buffer

La Rosa, Andres H.

88

Fiber optic hydrophone  

DOE Patents [OSTI]

A miniature fiber optic hydrophone based on the principles of a Fabry-Perot interferometer. The hydrophone, in one embodiment, includes a body having a shaped flexible bladder at one end which defines a volume containing air or suitable gas, and including a membrane disposed adjacent a vent. An optic fiber extends into the body with one end terminating in spaced relation to the membrane. Acoustic waves in the water that impinge on the bladder cause the pressure of the volume therein to vary causing the membrane to deflect and modulate the reflectivity of the Fabry-Perot cavity formed by the membrane surface and the cleaved end of the optical fiber disposed adjacent to the membrane. When the light is transmitted down the optical fiber, the reflected signal is amplitude modulated by the incident acoustic wave. Another embodiment utilizes a fluid filled volume within which the fiber optic extends.

Kuzmenko, Paul J. (Livermore, CA); Davis, Donald T. (Livermore, CA)

1994-01-01T23:59:59.000Z

89

Fiber optic hydrophone  

DOE Patents [OSTI]

A miniature fiber optic hydrophone based on the principles of a Fabry-Perot interferometer is disclosed. The hydrophone, in one embodiment, includes a body having a shaped flexible bladder at one end which defines a volume containing air or suitable gas, and including a membrane disposed adjacent a vent. An optical fiber extends into the body with one end terminating in spaced relation to the membrane. Acoustic waves in the water that impinge on the bladder cause the pressure of the volume therein to vary causing the membrane to deflect and modulate the reflectivity of the Fabry-Perot cavity formed by the membrane surface and the cleaved end of the optical fiber disposed adjacent to the membrane. When the light is transmitted down the optical fiber, the reflected signal is amplitude modulated by the incident acoustic wave. Another embodiment utilizes a fluid filled volume within which the fiber optic extends. 2 figures.

Kuzmenko, P.J.; Davis, D.T.

1994-05-10T23:59:59.000Z

90

Fiber optic hydrogen sensor  

DOE Patents [OSTI]

An apparatus and method for detecting a chemical substance by exposing an optic fiber having a core and a cladding to the chemical substance so that the chemical substance can be adsorbed onto the surface of the cladding. The optic fiber is coiled inside a container having a pair of valves for controlling the entrance and exit of the substance. Light from a light source is received by one end of the optic fiber, preferably external to the container, and carried by the core of the fiber. Adsorbed substance changes the transmissivity of the fiber as measured by a spectrophotometer at the other end, also preferably external to the container. Hydrogen is detected by the absorption of infrared light carried by an optic fiber with a silica cladding. Since the adsorption is reversible, a sensor according to the present invention can be used repeatedly. Multiple positions in a process system can be monitored using a single container that can be connected to each location to be monitored so that a sample can be obtained for measurement, or, alternatively, containers can be placed near each position and the optic fibers carrying the partially-absorbed light can be multiplexed for rapid sequential reading by a single spectrophotometer.

Buchanan, Bruce R. (1985 Willis, Batesburg, SC 29006); Prather, William S. (2419 Dickey Rd., Augusta, GA 30906)

1992-01-01T23:59:59.000Z

91

Fiber optic hydrogen sensor  

DOE Patents [OSTI]

Apparatus and method for detecting a chemical substance by exposing an optic fiber having a core and a cladding to the chemical substance so that the chemical substance can be adsorbed onto the surface of the cladding. The optic fiber is coiled inside a container having a pair of valves for controlling the entrance and exit of the substance. Light from a light source is received by one end of the optic fiber, preferably external to the container, and carried by the core of the fiber. Adsorbed substance changes the transmissivity of the fiber as measured by a spectrophotometer at the other end, also preferably external to the container. Hydrogen is detected by the absorption of infrared light carried by an optic fiber with a silica cladding. Since the adsorption is reversible, a sensor according to the present invention can be used repeatedly. Multiple positions in a process system can be monitored using a single container that can be connected to each location to be monitored so that a sample can be obtained for measurement, or, alternatively, containers can be placed near each position and the optic fibers carrying the partially-absorbed light can be multiplexed for rapid sequential reading, by a single spectrophotometer.

Buchanan, B.R.; Prather, W.S.

1991-01-01T23:59:59.000Z

92

Fiber optic hydrogen sensor  

DOE Patents [OSTI]

An apparatus and method are described for detecting a chemical substance by exposing an optic fiber having a core and a cladding to the chemical substance so that the chemical substance can be adsorbed onto the surface of the cladding. The optic fiber is coiled inside a container having a pair of valves for controlling the entrance and exit of the substance. Light from a light source is received by one end of the optic fiber, preferably external to the container, and carried by the core of the fiber. Adsorbed substance changes the transmissivity of the fiber as measured by a spectrophotometer at the other end, also preferably external to the container. Hydrogen is detected by the absorption of infrared light carried by an optic fiber with a silica cladding. Since the adsorption is reversible, a sensor according to the present invention can be used repeatedly. Multiple positions in a process system can be monitored using a single container that can be connected to each location to be monitored so that a sample can be obtained for measurement, or, alternatively, containers can be placed near each position and the optic fibers carrying the partially-absorbed light can be multiplexed for rapid sequential reading by a single spectrophotometer. 4 figs.

Buchanan, B.R.; Prather, W.S.

1992-10-06T23:59:59.000Z

93

Fiber bundle phase conjugate mirror  

DOE Patents [OSTI]

An improved method and apparatus for passively conjugating the phases of a distorted wavefronts resulting from optical phase mismatch between elements of a fiber laser array are disclosed. A method for passively conjugating a distorted wavefront comprises the steps of: multiplexing a plurality of probe fibers and a bundle pump fiber in a fiber bundle array; passing the multiplexed output from the fiber bundle array through a collimating lens and into one portion of a non-linear medium; passing the output from a pump collection fiber through a focusing lens and into another portion of the non-linear medium so that the output from the pump collection fiber mixes with the multiplexed output from the fiber bundle; adjusting one or more degrees of freedom of one or more of the fiber bundle array, the collimating lens, the focusing lens, the non-linear medium, or the pump collection fiber to produce a standing wave in the non-linear medium.

Ward, Benjamin G.

2012-05-01T23:59:59.000Z

94

Optoelectronic fiber interface design  

E-Print Network [OSTI]

Recent developments in materials science have led to the development of an exciting, new class of fibers which integrate metals, semiconductors and insulators in the same codrawing process. Various electrical devices have ...

Spencer, Matthew Edmund

2008-01-01T23:59:59.000Z

95

Multimaterial rectifying device fibers  

E-Print Network [OSTI]

Electronic and optoelectronic device processing is commonly thought to be incompatible with much simpler thermal drawing techniques used in optical fiber production. The incorporation of metals, polymer insulators, and ...

Orf, Nicholas D

2009-01-01T23:59:59.000Z

96

Dark Soliton Fiber Laser  

E-Print Network [OSTI]

We report on the experimental observation of stable dark solitons in an all normal dispersion fiber laser. We found experimentally that dark soliton formation is a generic feature of the fiber laser under strong continuous wave (CW) emission. However, only under appropriate pump strength and negative cavity feedback, stable single or multiple dark soliton could be achieved. Furthermore, we show that the features of the observed dark solitons could be well understood based on the nonlinear Schrodinger equation (NLSE).

H. Zhang; D. Y. Tang; L. M. Zhao; X. Wu; Q. L. Bao; K. P. Loh

2009-05-08T23:59:59.000Z

97

Carbon Fiber Pilot Plant and Research Facilities  

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

for the U.S. Department of Energy Presentationname Carbon Fiber Facilities Materials Carbon Fiber Research Facility Type Production Fiber Types Tow Size Tensioning Line...

98

Use of cottonseed hulls, rice hulls, and ammoniated rice hulls for finishing calves commercially  

E-Print Network [OSTI]

USE OF COTTONSEED HULLS, RICE HULLS, AND AMMONIATED RICE HULLS FOR FINISHING CALVES COMMERCIALLY A Theste NORMAN FINLEY VESTAL Subxnttted to the Graduate CoIlege of the Teaac W hhf Uxdvers@y;M -: partfal AdBHaioct:if the reqsh;~ Air. the.... degree-. -cf MASTER OF SCIENCE August 1967 MaJor Subject: ' Anginal Science . USE OF COTTONSEED HULLS, RICE HULLS, AND AMMONIATED RICE HULLS FOR FINISHING CALVES COMMERCIALLY A Tbesls NORMAN FINLEY VESTAL Approved as to style and content by. ) I...

Vestal, Norman Finley

1967-01-01T23:59:59.000Z

99

Au microstructure and the functional properties of Ni/Au finishes on ceramic IC packages  

SciTech Connect (OSTI)

Ni/Au plated finishes used on thick-film metallized multilayer ceramic packages for integrated circuits must meet functional requirements such as bondability, sealability, and solderability. Their ability to do so is dependent, among other things, on the ability of the Au deposit to inhibit the grain boundary diffusion and subsequent surface oxidation of Ni. In this study, the relation between functional performance, Ni diffusionr ate, and Au microstructure was examined. Extent of Ni diffusion during heating was determined by Auger electron spectroscopy for several electrolytic and electroless Ni/Au finishing processes. Results were correlated with differences in Au microstructures determined by SEM, atomic force microscopy, and XRD.

Winters, E.D.; Baxter, W.K. [Coors Electronic Package Co., Chattanooga, TN (United States); Braski, D.N.; Watkins, T.R. [Oak Ridge National Lab., TN (United States)

1995-12-31T23:59:59.000Z

100

Estimation and characterization of decontamination and decommissioning solid waste expected from the Plutonium Finishing Plant  

SciTech Connect (OSTI)

Purpose of the study was to estimate the amounts of equipment and other materials that are candidates for removal and subsequent processing in a solid waste facility when the Hanford Plutonium Finishing Plant is decontaminated and decommissioned. (Building structure and soil are not covered.) Results indicate that {approximately}5,500 m{sup 3} of solid waste is expected to result from the decontamination and decommissioning of the Pu Finishing Plant. The breakdown of the volumes and percentages of waste by category is 1% dangerous solid waste, 71% low-level waste, 21% transuranic waste, 7% transuranic mixed waste.

Millar, J.S.; Pottmeyer, J.A.; Stratton, T.J. [and others

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Third and fourth limiting amino acids in sorghum for growing and finishing swine  

E-Print Network [OSTI]

-methionine (Met) and L-isoleucine (Ile) were added individually and in all combinations to a vitamin, mineral, lysine and threonine fortified sorghum basal diet (B) and fed to growing and finishing pigs (18. 1 and 50. 0 kg average initial weight, respectively...). The B diet was formulated with equimolar additions of glycine (Gly) and L-glutamic acid (Glu) to provide 12. 0 and 11. 5X crude protein (N x 6. 25) for growing and finish- ing diets, respectively. Trp, Met and Ile were added at the expense of Gly...

Purser, Kenneth Wayne

1976-01-01T23:59:59.000Z

102

Enhanced radiation resistant fiber optics  

DOE Patents [OSTI]

A process for producing an optical fiber having enhanced radiation resistance is provided, the process including maintaining an optical fiber within a hydrogen-containing atmosphere for sufficient time to yield a hydrogen-permeated optical fiber having an elevated internal hydrogen concentration, and irradiating the hydrogen-permeated optical fiber at a time while the optical fiber has an elevated internal hydrogen concentration with a source of ionizing radiation. The radiation source is typically a cobalt-60 source and the fiber is pre-irradiated with a dose level up to about 1000 kilorads of radiation. 4 figures.

Lyons, P.B.; Looney, L.D.

1993-11-30T23:59:59.000Z

103

Adsorption of Chromium (VI) by metal hydroxide sludge from the metal finishing  

E-Print Network [OSTI]

and Management, United States (2008)" #12;2 1 Introduction Industrial aqueous pollution (heavy metals) accounts sludge (MHS) during the treatment of their liquid effluents charged with heavy metals. Generally, a small for 30 to 40% of industrial pollution. Metal finishing is one of the sectors which contributes mostly

Paris-Sud XI, Université de

104

Assessment of circuit board surface finishes for electronic assembly with lead-free solders  

SciTech Connect (OSTI)

The suitability of various metallic printed wiring board surface finishes was assessed for new technology applications that incorporate assembly with Lead-free solders. The manufacture of a lead-free product necessitates elimination of lead (Pb) from the solder, the circuit board as well as the component lead termination. It is critical however for the selected interconnect Pb-free solder and the corresponding printed wiring board (PWB) and component lead finishes to be mutually compatible. Baseline compatibility of select Pb-free solders with Pb containing PWB surface finish and components was assessed. This was followed by examining the compatibility of the commercially available CASTIN{trademark} (SnAgCuSb) Pb-free solder with a series of PWB metallic finishes: Ni/Au, Ni/Pd, and Pd/Cu. The compatibility was assessed with respect to assembly performance, solder joint integrity and long term attachment reliability. Solder joint integrity and mechanical behavior of representative 50 mil pitch 20I/O SOICs was determined before and after thermal stress. Mechanical pull test studies demonstrated that the strength of SnAgCuSb solder interconnections is notably greater than that of SnPb interconnections.

Ray, U.; Artaki, I.; Finley, D.W.; Wenger, G.M. [Bell Labs., Princeton, NJ (United States). Lucent Technologies; Pan, T.; Blair, H.D.; Nicholson, J.M. [Ford Motor Co., Dearborn, MI (United States); Vianco, P.T. [Sandia National Labs., Albuquerque, NM (United States)

1996-10-01T23:59:59.000Z

105

Low Cost Carbon Fiber Production Carbon Fiber Manufacturing Cost Modeling  

E-Print Network [OSTI]

to bond with composite matrix material. It is important that a carbon fiber manufacturing cost model manufactured with carbon fiber as opposed to traditional materials such as steel, automotive parts are able associated with both the manufacture of carbon fibers themselves as well as their composites. Traditional

106

Optical and optoelectronic fiber devices  

E-Print Network [OSTI]

The ability to integrate materials with disparate electrical, thermal, and optical properties into a single fiber structure enabled the realization of fiber devices with diverse and complex functionalities. Amongst those, ...

Shapira, Ofer, Ph. D. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

107

Fiber Supply Associate Company Overview  

E-Print Network [OSTI]

materials acquisition, harvesting, logistics coordination, contract negotiations, and inventory management, Purchasing, Industrial Engineering, Operations management, Materials Management, Supply Chain) Authorized leadership roles such as Fiber Specialist, Fiber Supply Manager, Region Manager, Director, General Manager

Mazzotti, Frank

108

Silicon fiber optic sensors  

DOE Patents [OSTI]

A Fabry-Perot cavity is formed by a partially or wholly reflective surface on the free end of an integrated elongate channel or an integrated bounding wall of a chip of a wafer and a partially reflective surface on the end of the optical fiber. Such a constructed device can be utilized to detect one or more physical parameters, such as, for example, strain, through the optical fiber using an optical detection system to provide measuring accuracies of less than aboutb0.1%.

Pocha, Michael D. (Livermore, CA); Swierkowski, Steve P. (Livermore, CA); Wood, Billy E. (Livermore, CA)

2007-10-02T23:59:59.000Z

109

Automated fiber pigtailing machine  

DOE Patents [OSTI]

The Automated Fiber Pigtailing Machine (AFPM) aligns and attaches optical fibers to optoelectronic (OE) devices such as laser diodes, photodiodes, and waveguide devices without operator intervention. The so-called pigtailing process is completed with sub-micron accuracies in less than 3 minutes. The AFPM operates unattended for one hour, is modular in design and is compatible with a mass production manufacturing environment. This machine can be used to build components which are used in military aircraft navigation systems, computer systems, communications systems and in the construction of diagnostics and experimental systems. 26 figs.

Strand, O.T.; Lowry, M.E.

1999-01-05T23:59:59.000Z

110

Automated fiber pigtailing machine  

DOE Patents [OSTI]

The Automated Fiber Pigtailing Machine (AFPM) aligns and attaches optical fibers to optoelectonic (OE) devices such as laser diodes, photodiodes, and waveguide devices without operator intervention. The so-called pigtailing process is completed with sub-micron accuracies in less than 3 minutes. The AFPM operates unattended for one hour, is modular in design and is compatible with a mass production manufacturing environment. This machine can be used to build components which are used in military aircraft navigation systems, computer systems, communications systems and in the construction of diagnostics and experimental systems.

Strand, Oliver T. (Castro Valley, CA); Lowry, Mark E. (Castro Valley, CA)

1999-01-01T23:59:59.000Z

111

*** How PAN based Carbon Fibers are  

E-Print Network [OSTI]

*** How PAN based Carbon Fibers are Manufactured *** How Carbon Fiber Material Properties are Achieved *** Carbon Fiber Markets/Applications CarbonFiber AerospaceEngineeringGuestLecture: Friday as a Business Development Manager for Amoco's carbon fiber business unit (manufacturers of T-300 carbon fiber

Hu, Hui

112

Genetics of Cotton Fiber Elongation  

E-Print Network [OSTI]

ability GxE Genotype by environment interaction HVI High volume instrument Mic Micronaire (HVI) SCA Specific combining ability Str-H Fiber strength (HVI) Str-S Fiber strength (Stelometer) UHML Upper-half mean length (HVI) UI Uniformity index... Station, TX .................................................................................... 38 5 Mean squares of GCA and SCA for HVI fiber properties in 2010 and 2011 in College Station, TX...

Ng, Eng Hwa

2013-05-29T23:59:59.000Z

113

Aerogel-clad optical fiber  

DOE Patents [OSTI]

An optical fiber is surrounded by an aerogel cladding. For a low density aerogel, the index of refraction of the aerogel is close to that of air, which provides a high numerical aperture to the optical fiber. Due to the high numerical aperture, the aerogel clad optical fiber has improved light collection efficiency. 4 figs.

Sprehn, G.A.; Hrubesh, L.W.; Poco, J.F.; Sandler, P.H.

1997-11-04T23:59:59.000Z

114

Aerogel-clad optical fiber  

DOE Patents [OSTI]

An optical fiber is surrounded by an aerogel cladding. For a low density aerogel, the index of refraction of the aerogel is close to that of air, which provides a high numerical aperture to the optical fiber. Due to the high numerical aperture, the aerogel clad optical fiber has improved light collection efficiency.

Sprehn, Gregory A. (Livermore, CA); Hrubesh, Lawrence W. (Pleasanton, CA); Poco, John F. (Livermore, CA); Sandler, Pamela H. (San Marino, CA)

1997-01-01T23:59:59.000Z

115

Finishing and Special Motifs: Lessons Learned from CRISPR Analysis Using Next-Generation Draft Sequences ( 7th Annual SFAF Meeting, 2012)  

ScienceCinema (OSTI)

Catherine Campbell on "Finishing and Special Motifs: Lessons learned from CRISPR analysis using next-generation draft sequences" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

Campbell, Catherine [Noblis

2013-03-22T23:59:59.000Z

116

Drying of fiber webs  

DOE Patents [OSTI]

A process and an apparatus for high-intensity drying of fiber webs or sheets, such as newsprint, printing and writing papers, packaging paper, and paperboard or linerboard, as they are formed on a paper machine. The invention uses direct contact between the wet fiber web or sheet and various molten heat transfer fluids, such as liquified eutectic metal alloys, to impart heat at high rates over prolonged durations, in order to achieve ambient boiling of moisture contained within the web. The molten fluid contact process causes steam vapor to emanate from the web surface, without dilution by ambient air; and it is differentiated from the evaporative drying techniques of the prior industrial art, which depend on the uses of steam-heated cylinders to supply heat to the paper web surface, and ambient air to carry away moisture, which is evaporated from the web surface. Contact between the wet fiber web and the molten fluid can be accomplished either by submersing the web within a molten bath or by coating the surface of the web with the molten media. Because of the high interfacial surface tension between the molten media and the cellulose fiber comprising the paper web, the molten media does not appreciately stick to the paper after it is dried. Steam generated from the paper web is collected and condensed without dilution by ambient air to allow heat recovery at significantly higher temperature levels than attainable in evaporative dryers.

Warren, David W. (9253 Glenoaks Blvd., Sun Valley, CA 91352)

1997-01-01T23:59:59.000Z

117

Drying of fiber webs  

DOE Patents [OSTI]

A process and an apparatus are disclosed for high-intensity drying of fiber webs or sheets, such as newsprint, printing and writing papers, packaging paper, and paperboard or linerboard, as they are formed on a paper machine. The invention uses direct contact between the wet fiber web or sheet and various molten heat transfer fluids, such as liquefied eutectic metal alloys, to impart heat at high rates over prolonged durations, in order to achieve ambient boiling of moisture contained within the web. The molten fluid contact process causes steam vapor to emanate from the web surface, without dilution by ambient air; and it is differentiated from the evaporative drying techniques of the prior industrial art, which depend on the uses of steam-heated cylinders to supply heat to the paper web surface, and ambient air to carry away moisture, which is evaporated from the web surface. Contact between the wet fiber web and the molten fluid can be accomplished either by submersing the web within a molten bath or by coating the surface of the web with the molten media. Because of the high interfacial surface tension between the molten media and the cellulose fiber comprising the paper web, the molten media does not appreciatively stick to the paper after it is dried. Steam generated from the paper web is collected and condensed without dilution by ambient air to allow heat recovery at significantly higher temperature levels than attainable in evaporative dryers. 6 figs.

Warren, D.W.

1997-04-15T23:59:59.000Z

118

Introgression & mapping Fiber cell  

E-Print Network [OSTI]

Germplasm Introgression Genomics & mapping Fiber cell initiation Radiation hybrid (RH) mapping and breeding. Research activities commonly include plant breeding, genetics, genomics, cytogenetics, molecular methods. (C, S) · Contribute uniquely to genomics and its relevance to genetic improvement (C,S) · Harness

119

Energy Saving Method of Manufacturing Ceramic Products from Fiber Glass Waste  

SciTech Connect (OSTI)

The U.S. fiber glass industry disposes of more than 260,000 tons of industrial fiber glass waste in landfills annually. New technology is needed to reprocess this industrial waste into useful products. A low-cost energy-saving method of manufacturing ceramic tile from fiber glass waste was developed. The technology is based on sintering fiber glass waste at 700-900 degrees C to produce products which traditionally require firing temperatures of >1200 degrees C, or glass-melting temperatures >1500 degrees C. The process also eliminates other energy intensive processing steps, including mining and transportation of raw materials, spray-drying to produce granulated powder, drying pressed tile, and glazing. The technology completely transforms fiber glass waste into a dense ceramic product, so that all future environmental problems in the handling and disposal of the fibers is eliminated. The processing steps were developed and optimized to produce glossy and matte surface finishes for wall and floor tile applications. High-quality prototype tile samples were processed for demonstration and tile standards testing. A Market Assessment confirmed the market potential for tile products produced by the technology. Manufacturing equipment trials were successfully conducted for each step of the process. An industrial demonstration plant was designed, including equipment and operating cost analysis. A fiber glass manufacturer was selected as an industrial partner to commercialize the technology. A technology development and licensing agreement was completed with the industrial partner. Haun labs will continue working to transfer the technology and assist the industrial partner with commercialization beyond the DOE project.

Michael J. Haun

2005-07-15T23:59:59.000Z

120

Project plan remove special nuclear material from PFP project plutonium finishing plant  

SciTech Connect (OSTI)

This plan presents the overall objectives, description, justification and planning for the Plutonium Finishing Plant (PFP) Remove Special Nuclear Material (SNM) Materials. The intent of this plan is to describe how this project will be managed and integrated with other facility stabilization and deactivation activities. This plan supplements the overall integrated plan presented in the Plutonium Finishing Plant Integrated Project Management Plan (IPMP), HNF-3617, Rev. 0. This project plan is the top-level definitive project management document for PFP Remove SNM Materials project. It specifies the technical, schedule, requirements and the cost baselines to manage the execution of the Remove SNM Materials project. Any deviations to the document must be authorized through the appropriate change control process.

BARTLETT, W.D.

1999-05-13T23:59:59.000Z

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Grain sorghum, reconstituted in whole and in ground forms, in finishing rations for beef cattle  

E-Print Network [OSTI]

of the grain, is kept by the embryo, the . , only tissue capable of growth. All of the methods described in this work have brought about increases in feed efficiency. It appears that reconstituting brings into play mechanisms similar to those observed... GRAIN SORGHUM, RECONSTITUTED IN WHOLE AND IN GROUND BOHMS, IN FINISHING RATIONS FOR BEEF CATTLE A Thesis PETER PENIC Submitted to the Graduate College of' the Texas A&M University in partial fulfillment of the requirements for the degree...

Penic, Peter

1968-01-01T23:59:59.000Z

122

Plutonium Finishing Plant (PFP) Standards/Requirements Identification Document (S/RID)  

SciTech Connect (OSTI)

This Standards/Requirements Identification Document (S/RID) sets forth the Environmental Safety and Health (ESH) standards/requirements for the Plutonium Finishing Plant (PFP). This S/RID is applicable to the appropriate life cycle phases of design, construction, operation, and preparation for decommissioning. These standards/requirements are adequate to ensure the protection of the health and safety of workers, the public, and the environment.

Maddox, B.S.

1996-01-01T23:59:59.000Z

123

Fiber optic fluid detector  

DOE Patents [OSTI]

Particular gases or liquids are detected with a fiber optic element having a cladding or coating of a material which absorbs the fluid or fluids and which exhibits a change of an optical property, such as index of refraction, light transmissiveness or fluoresence emission, for example, in response to absorption of the fluid. The fluid is sensed by directing light into the fiber optic element and detecting changes in the light, such as exit angle changes for example, that result from the changed optical property of the coating material. The fluid detector may be used for such purposes as sensing toxic or explosive gases in the atmosphere, measuring ground water contamination or monitoring fluid flows in industrial processes, among other uses. 10 figs.

Angel, S.M.

1987-02-27T23:59:59.000Z

124

Fiber optic geophysical sensors  

DOE Patents [OSTI]

A fiber optic geophysical sensor in which laser light is passed through a sensor interferometer in contact with a geophysical event, and a reference interferometer not in contact with the geophysical event but in the same general environment as the sensor interferometer. In one embodiment, a single tunable laser provides the laser light. In another embodiment, separate tunable lasers are used for the sensor and reference interferometers. The invention can find such uses as monitoring for earthquakes, and the weighing of objects.

Homuth, Emil F. (Los Alamos, NM)

1991-01-01T23:59:59.000Z

125

Buried fiber optic sensor  

E-Print Network [OSTI]

, and TMom modes. Otherwise vm gives the HEv hm and EHv-hm modest20] 18 Table I. Parameters of the laser source and the fused silica fiber which are used in this experiment. n=n1=1. 4527 n2= 1. 4483 D (core diameter )= 8 um Cladding Diameter = 125 um... Interferometer . B. Frequency Chirping of Laser Diode C. Pressure Sensitivity to Uniform Pressure . . . . . . . . . . D. Pressure Sensitivity to Transverse Pressure . . . . E. Pressure Sensitivity to Longitudinal Pressure . . . . . . . . . . I 3 . . . . 20...

Park, Jaehee

1992-01-01T23:59:59.000Z

126

Mercury: Next-gen Data Analysis and Annotation Pipeline (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

ScienceCinema (OSTI)

David Sexton (Baylor) gives a talk titled "Mercury: Next-gen Data Analysis and Annotation Pipeline" at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

Sexton, David [Baylor

2013-01-25T23:59:59.000Z

127

The PerkinElmer Omics Laboratory (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

ScienceCinema (OSTI)

Todd Smith of the PerkinElmer Omics Laboratory gives a talk about his lab and its work at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

Smith, Todd [PerkinElmer Omics Laboratory

2013-01-25T23:59:59.000Z

128

High Throughput Plasmid Sequencing with Illumina and CLC Bio (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

ScienceCinema (OSTI)

Ajay Athavale (Monsanto) presents "High Throughput Plasmid Sequencing with Illumina and CLC Bio" at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

Athavale, Ajay [Monsanto

2013-01-25T23:59:59.000Z

129

Introducing National Center for Genome Resources (NCGR) Informatics (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

ScienceCinema (OSTI)

John Crow from the National Center for Genome Resources discusses his organization's informatics at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

Crow, John [National Center for Genome Resources

2013-01-25T23:59:59.000Z

130

Fiber optic sensor and method for making  

DOE Patents [OSTI]

A fiber optic sensor including a fiber having a modified surface integral with the fiber wherein the modified surface includes an open pore network with optical agents dispersed within the open pores of the open pore network. Methods for preparing the fiber optic sensor are also provided. The fiber optic sensors can withstand high temperatures and harsh environments.

Vartuli, James Scott; Bousman, Kenneth Sherwood; Deng, Kung-Li; McEvoy, Kevin Paul; Xia, Hua

2010-05-18T23:59:59.000Z

131

Coated metal fiber coalescing cell  

SciTech Connect (OSTI)

A cell is described for coalescing oil droplets dispersed in a water emulsion including an elongated perforated tube core into which the emulsion is injected, layers of oleophilic plastic covered metal mat wound about the core through which the emulsion is forced to pass, the fibers of the metal mat being covered by oleophilic plastic such as vinyl, acrylic, polypropylene, polyethylene, polyvinyl chloride, the metal being in the form of layers of expanded metal or metal fibers, either aluminum or stainless steel. In manufacturing the cell a helix wound wire is formed around the cylindrical plastic coated metal to retain it in place and resist pressure drop of fluid flowing through the metal fibers. In addition, the preferred arrangement includes the use of an outer sleeve formed of a mat of fibrous material such as polyester fibers, acrylic fibers, modacrylic fibers and mixtures thereof.

Rutz, W.D.; Swain, R.J.

1980-12-23T23:59:59.000Z

132

Fiber laser development for LISA  

E-Print Network [OSTI]

We have developed a linearly-polarized Ytterbium-doped fiber ring laser with single longitudinal-mode output at 1064nm for LISA and other space applications. Single longitudinal-mode selection was achieved by using a fiber Bragg grating (FBG) and a fiber Fabry-Perot (FFP). The FFP also serves as a frequency-reference within our ring laser. Our laser exhibits comparable low frequency and intensity noise to Non-Planar Ring Oscillator (NPRO). By using a fiber-coupled phase modulator as a frequency actuator, the laser frequency can be electro-optically tuned at a rate of 100kHz. It appears that our fiber ring laser is promising for space applications where robustness of fiber optics is desirable.

Kenji Numata; Jeffrey R. Chen; Jordan Camp

2010-03-18T23:59:59.000Z

133

EXTENDING FIBER RESOURCES: FIBER LOADING RECYCLED FIBERAND MECHANICAL PULPS FOR LIGHTWEIGHT, HIGH OPACITY PAPER  

E-Print Network [OSTI]

, precipitates calcium carbonate (PCC) in situ within pulp fibers. Because paper made from fiber-loaded pulp increasing the recovery and utilization of recycled fiber and optimizing virgin fiber yield by relying moreEXTENDING FIBER RESOURCES: FIBER LOADING RECYCLED FIBERAND MECHANICAL PULPS FOR LIGHTWEIGHT, HIGH

Abubakr, Said

134

Carbon Fiber Consortium | Partnerships | ORNL  

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

in 2011 to accelerate the development and deployment of new, lower cost carbon fiber composite materials. The Consortium draws on the broad experience that the Oak Ridge National...

135

Lower Cost Carbon Fiber Precursors  

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

production and conversion parameters must be optimized. Lower cost fiber enable CF composite applications. Approach: 1. Complete previous effort by scaling to the CF production...

136

Carbon Fiber Cluster Strategy | ornl.gov  

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

Carbon Fiber Cluster Strategy ORNL has a 40-year history in R&D on fiber-reinforced composite materials, and has been leading DOE's low-cost carbon fiber initiative for more than...

137

Carbon Fiber Composite Cellular A Dissertation  

E-Print Network [OSTI]

Carbon Fiber Composite Cellular Structures ____________________________________ A Dissertation and honeycombs. However, for weight sensitive, ambient temperature applications, carbon fiber composites have emerged as a promising material due to its high specific strength and low density. Carbon fiber reinforced

Wadley, Haydn

138

Fiber optic geophysical sensors  

DOE Patents [OSTI]

A fiber optic geophysical sensor is described in which laser light is passed through a sensor interferometer in contact with a geophysical event, and a reference interferometer not in contact with the geophysical event but in the same general environment as the sensor interferometer. In one embodiment, a single tunable laser provides the laser light. In another embodiment, separate tunable lasers are used for the sensor and reference interferometers. The invention can find such uses as monitoring for earthquakes, and the weighing of objects. 2 figures.

Homuth, E.F.

1991-03-19T23:59:59.000Z

139

Dark Fiber Testbed  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to UserProduct: CrudeOffice ofINL is a U.S.11-26-20131Daren Dark Fiber

140

Fiber Mesh Diagnostic  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4:EpitaxialtransatlanticUnified Forces | DoTravelSurfaceFiber Mesh

Note: This page contains sample records for the topic "finishing fiber yarn" 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

CFTF | Carbon Fiber Technology Facility | ORNL  

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

BTRIC CNMS CSMB CFTF Working with CFTF HFIR MDF NTRC OLCF SNS Carbon Fiber Technology Facility Home | User Facilities | CFTF CFTF | Carbon Fiber Technology Facility SHARE Oak...

142

Cotton mutants with divergent fiber quality characteristics.  

E-Print Network [OSTI]

??In the U.S. cotton industry there is a need for improved fiber quality to compete in International Markets. This market demands cotton fibers that are… (more)

Vining, Kimberly

2012-01-01T23:59:59.000Z

143

Fiber optic refractive index monitor  

DOE Patents [OSTI]

A sensor for measuring the change in refractive index of a liquid uses the lowest critical angle of a normal fiber optic to achieve sensitivity when the index of the liquid is significantly less than the index of the fiber core. Another embodiment uses a liquid filled core to ensure that its index is approximately the same as the liquid being measured.

Weiss, Jonathan David (Albuquerque, NM)

2002-01-01T23:59:59.000Z

144

STANDARD LAN -1 Fiber Channel  

E-Print Network [OSTI]

STANDARD LAN - 1 Fiber Channel Gruppo Reti TLC nome.cognome@polito.it http://www.telematica.polito.it/ #12;STANDARD LAN - 2 Fibre Channel · Born to interconnect mainframes and servers to storage systems: fibERs, but not only... · Interoperability with SCSI, Internet Protocol (IP), ... · Standard ANSI X3

Mellia, Marco

145

Buried fiber optic intrusion sensor  

E-Print Network [OSTI]

to the buried sensor induces a phase shift in light propagating along the fiber which allows for the detection and localization of intrusions. Through the use of an ultra-stable erbium-doped fiber laser and phase sensitive optical time domain reflectometry...

Maier, Eric William

2004-09-30T23:59:59.000Z

146

Fiber Laser Based Nonlinear Spectroscopy  

E-Print Network [OSTI]

Figure 31. Varied output spectrum of NL-PM-750 (spectrograms) .................................72 Figure 32. Comparison of four dispersion profiles. ..........................................................75 Figure 33. Simulations of four dispersion... characteristics of three photonic crystal fibers. 82 Figure 39. Simulation of NL-PM-750............................................................................... 83 Figure 40. Varying the input wavelength in NL-PM-750 fiber...

Adany, Peter

2012-08-31T23:59:59.000Z

147

Alfalfa leaf meal in finishing steer diets. Quarterly report, July 1, 1997--September 30, 1997  

SciTech Connect (OSTI)

Ninety-six medium frame, Angus and Angus cross steer calves (average initial weight 540 lb.) were allotted to a heavy or light weight block and then randomly assigned to one of four dietary treatments for a 167 or 189-day finishing phase, respectively. Treatments were control (supplemental soybean meal), alfalfa leaf meal (ALM) providing 33%, 66%, 100% of supplemental protein. Finishing diets were formulated to contain .61 Mcal NE{sub g}/lb dry matter, 12.5% crude protein, .6 % Ca and .3 % P. There were no significant (P >.05) effects of dietary treatments on daily gain or dry matter required /lb of gain. Steers fed 100 % ALM consumed more (P <.05) dry matter than steers fed either of the other three treatments. Dry matter consumption increased linearly (P >.05) with increasing ALM. There was no significant (P >.05) dietary treatment effect on marbling, KPH %, yield grade, quality grade, or liver abscesses. There was an apparent trend in reduced liver abscess incidence in steers fed 100 % ALM. Steers fed 66 % ALM had significantly (P <.05) greater backfat measurements, backfat also had a cubic effect (P <.05). Hot carcass weight had a quadratic relation (P <.05) with level of ALM. Substituting alfalfa leaf meal for soybean meal in diets of finishing steers increased DM intake, but this increase was accompanied by an increase in gain which resulted in similar feed efficiency. There may be an advantage in blending ALM and soybean meal as feed efficiency was improved when cattle were fed the blend. Also, feeding ALM may result in lower incidence of liver abscess.

Zehnder, C.M.; DiCostanzo, A.; Smith, L.B.; Brown, D.B.; Hall, J.M.

1997-10-30T23:59:59.000Z

148

Fiber Grating Environmental Sensing System  

DOE Patents [OSTI]

Fiber grating environmental measurement systems are comprised of sensors that are configured to respond to changes in moisture or chemical content of the surrounding medium through the action of coatings and plates inducing strain that is measured. These sensors can also be used to monitor the interior of bonds for degradation due to aging, cracking, or chemical attack. Means to multiplex these sensors at high speed and with high sensitivity can be accomplished by using spectral filters placed to correspond to each fiber grating environmental sensor. By forming networks of spectral elements and using wavelength division multiplexing arrays of fiber grating sensors may be processed in a single fiber line allowing distributed high sensitivity, high bandwidth fiber optic grating environmental sensor systems to be realized.

Schulz, Whitten L. (Fairview, OR); Udd, Eric (Fairview, OR)

2003-07-29T23:59:59.000Z

149

Roughage and roughage substitutes in high concentrate finishing mixtures for beef cattle  

E-Print Network [OSTI]

different levels of roughage, showed that maximum levels of 20 to 30% cottonseed hulls, 20 to 30% coastal bermuda hay, 10 to 20/o rice hulls (ammoniated or non-ammoniated) or 10/o flax shives should be used in finishing mixtures if high gain and feed... into four uniform groups on the basis of weight and grade. These groups received four different feed mixtures as follows: all concentrate, 2 and 4%%uo oyster shell flakes and 10% ammoniated rice hulls. The second and third experiments were part of Texas...

Leigh, Jorge Eduardo

1968-01-01T23:59:59.000Z

150

Aerobic treatability of waste effluent from the leather finishing industry. Master's thesis  

SciTech Connect (OSTI)

The Seton Company supplies finished leather products exclusively for the automotive industry. In the process of finishing leather, two types of wastewaters are generated. The majority of the wastewater is composed of water-based paint residuals while the remainder is composed of solvent-based coating residuals. Aerobic treatability studies were conducted using water-based and solvent-based waste recirculatory waters from the Seton Company's Saxton, Pennsylvania processing plant. The specific objective was to determine the potential for using aerobic biological processes to biodegrade the industry's wastes and determine the potential for joint treatment at the local publicly owned treatment works (POTW). This study was accomplished in two phases. Phase I was conducted during the Spring Semester 1993 and consisted of aerobic respirometer tests of the raw wastes and mass balance analysis. The results of Phase I were published in a report to the Seton Company as Environmental Resources Research Institute project number 92C.II40R-1. Phase II was conducted during the Summer Semester 1993 and consisted of bench-scale reactor tests and additional aerobic respirometer tests. The aerobic respirometer batch tests and bench-scale reactor tests were used to assess the treatability of solvent-based and water-based wastewaters and determine the degree of biodegradability of the wastewaters. Mass balance calculations were made using measured characteristics.

Vinger, J.A.

1993-12-01T23:59:59.000Z

151

HIPed carbon fiber reinforced silicon nitride composites  

SciTech Connect (OSTI)

Carbon fiber/Si3N4 composites were fabricated using slip infiltration of fiber bundles subsequently stacked in a plaster mold, dried, glass encapsulated, and HIPed to form unidirectional composite test bars. Neither chemical reactions between fiber and matrix nor thermal mismatch cracks in the matrix were observed. The bend fracture behavior of the composites was nonbrittle with extensive fiber pullout. 14 references.

Lundberg, R.; Pompe, R.; Carlsson, R.

1988-08-01T23:59:59.000Z

152

Failure of Carbon Fibers at a Crease in a Fiber-Reinforced Silicone Sheet  

E-Print Network [OSTI]

Failure of Carbon Fibers at a Crease in a Fiber-Reinforced Silicone Sheet Francisco L´opez Jim 91125 E-mail: sergiop@caltech.edu Thin sheets of unidirectional carbon fibers embedded in a silicone's modulus Et tensile Young's modulus of fiber Ec compressive Young's modulus of fiber F end force on looped

Pellegrino, Sergio

153

Ethanol extraction of phytosterols from corn fiber  

DOE Patents [OSTI]

The present invention provides a process for extracting sterols from a high solids, thermochemically hydrolyzed corn fiber using ethanol as the extractant. The process includes obtaining a corn fiber slurry having a moisture content from about 20 weight percent to about 50 weight percent solids (high solids content), thermochemically processing the corn fiber slurry having high solids content of 20 to 50% to produce a hydrolyzed corn fiber slurry, dewatering the hydrolyzed corn fiber slurry to achieve a residual corn fiber having a moisture content from about 30 to 80 weight percent solids, washing the residual corn fiber, dewatering the washed, hydrolyzed corn fiber slurry to achieve a residual corn fiber having a moisture content from about 30 to 80 weight percent solids, and extracting the residual corn fiber with ethanol and separating at least one sterol.

Abbas, Charles (Champaign, IL); Beery, Kyle E. (Decatur, IL); Binder, Thomas P. (Decatur, IL); Rammelsberg, Anne M. (Decatur, IL)

2010-11-16T23:59:59.000Z

154

E-Print Network 3.0 - automated fiber pigtailing Sample Search...  

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

fiber pigtailing is based... Epoxyless Fiber-to-Submount Bonding for Active Fiber Optoelectronic and Fiber Backplane Applications Don C... Abstract--A fiber-coupled optical...

155

Scintillator fiber optic long counter  

DOE Patents [OSTI]

A flat response position sensitive neutron detector capable of providing neutron spectroscopic data utilizing scintillator fiber optic filaments embedded in a neutron moderating housing having an open end through which neutrons enter to be detected.

McCollum, Tom (Sterling, VA); Spector, Garry B. (Fairfax, VA)

1994-01-01T23:59:59.000Z

156

LongviewCowlitzFiberCX  

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

new ground disturbance. To accommodate the additional weight of the fiber cable on the transmission line, BPA would need to rebuild eight towers to a higher pole class: 110, 2...

157

Scintillator fiber optic long counter  

DOE Patents [OSTI]

A flat response position sensitive neutron detector capable of providing neutron spectroscopic data utilizing scintillator fiber optic filaments embedded in a neutron moderating housing having an open end through which neutrons enter to be detected is described. 11 figures.

McCollum, T.; Spector, G.B.

1994-03-29T23:59:59.000Z

158

Mobile fiber optic emission spectrograph  

SciTech Connect (OSTI)

Technical Assistance Request HLW/DWPF-TAR-970064 asked SRTC to evaluate the use of a fiber optic coupled emission spectrometer. The spectrometer would provide additional ICP analyses in the DWPF laboratory.

Spencer, W.A.; Coleman, C.J.; McCarty, J.E.; Beck, R.S.

1997-05-01T23:59:59.000Z

159

High repetition rate fiber lasers  

E-Print Network [OSTI]

This thesis reports work in high repetition rate femtosecond fiber lasers. Driven by the applications including optical arbitrary waveform generation, high speed optical sampling, frequency metrology, and timing and frequency ...

Chen, Jian, Ph. D. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

160

Low Cost Carbon Fiber Overview  

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

Strength; Fiber Format & Manufacturing Methods 1-10 M lbsyr 100M - 1B lbsyr Oil & Gas Deep Water Production Enabler Pipes, Drill Shafts, Off-Shore Structures Low Mass, High...

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Lower Cost Carbon Fiber Precursors  

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

1 Lower Cost Carbon Fiber Precursors P.I. Name: Dave Warren Presenter: Dr. Amit K. Naskar Oak Ridge National Laboratory 05162012 Project ID LM004 This presentation does not...

162

Light diffusing fiber optic chamber  

DOE Patents [OSTI]

A light diffusion system for transmitting light to a target area. The light is transmitted in a direction from a proximal end to a distal end by an optical fiber. A diffusing chamber is operatively connected to the optical fiber for transmitting the light from the proximal end to the distal end and transmitting said light to said target area. A plug is operatively connected to the diffusing chamber for increasing the light that is transmitted to the target area.

Maitland, Duncan J. (Lafayette, CA)

2002-01-01T23:59:59.000Z

163

Optical fiber inspection system  

DOE Patents [OSTI]

A remote optical inspection system including an inspection head. The inspection head has a passageway through which pellets or other objects are passed. A window is provided along the passageway through which light is beamed against the objects being inspected. A plurality of lens assemblies are arranged about the window so that reflected light can be gathered and transferred to a plurality of coherent optical fiber light guides. The light guides transfer the light images to a television or other image transducer which converts the optical images into a representative electronic signal. The electronic signal can then be displayed on a signal viewer such as a television monitor for inspection by a person. A staging means can be used to support the objects for viewing through the window. Routing means can be used to direct inspected objects into appropriate exit passages for accepted or rejected objects. The inspected objects are advantageously fed in a singular manner to the staging means and routing means. The inspection system is advantageously used in an enclosure when toxic or hazardous materials are being inspected. 10 figs.

Moore, F.W.

1985-04-05T23:59:59.000Z

164

anchored carbon fiber: Topics by E-print Network  

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

material. It is important that a carbon fiber manufacturing cost model 4 Carbon Fiber Composite Cellular A Dissertation Materials Science Websites Summary: Carbon Fiber Composite...

165

Evaluating an Exterior Insulation and Finish System for Deep Energy Retrofits  

SciTech Connect (OSTI)

Exterior insulation and finish systems (EIFS) are proprietary synthetic formulations that are applied to the exterior walls of buildings to serve as insulation and exterior cladding. The insulation thickness can vary from less than one inch to a foot or more. In this project the applicability of EIFS for residential deep energy retrofits was investigated through modeling and a case study home. The home was retrofitted using a site-applied four-inch-thick EIFS. Site-specific details were developed as required for the residential retrofit application. Site work and the costs of the EIFS system were documented. The demonstration home was modeled using Building Energy Optimization energy and cost analysis software to explore cost effectiveness of various EIFS insulation thicknesses in two climate locations.

Dentz, J.; Podorson, D.

2014-01-01T23:59:59.000Z

166

Characterization of past and present solid waste streams from the plutonium finishing plant  

SciTech Connect (OSTI)

During the next two decades the transuranic (TRU) wastes now stored in the burial trenches and storage facilities at the Hanford Site are to be retrieved, processed at the Waste Receiving and Processing (WRAP) Facility, and shipped to the Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico for final disposal. Over 50% of the TRU waste to be retrieved for shipment to the WIPP has been generated at the Plutonium Finishing Plant (PFP), also known as the Plutonium Processing and Storage Facility and Z Plant. The purpose of this report is to characterize the radioactive solid wastes generated by the PFP since its construction in 1947 using process knowledge, existing records, and history-obtained from interviews. The PFP is currently operated by Westinghouse Hanford Company (WHC) for the US Department of Energy (DOE).

Duncan, D R; Mayancsik, B A [Westinghouse Hanford Co., Richland, WA (United States)] [Westinghouse Hanford Co., Richland, WA (United States); Pottmeyer, J A; Vejvoda, E J; Reddick, J A; Sheldon, K M; Weyns, M I [Los Alamos Technical Associates, Kennewick, WA (United States)] [Los Alamos Technical Associates, Kennewick, WA (United States)

1993-02-01T23:59:59.000Z

167

Role of surface finishing on pitting corrosion of a duplex stainless steel in seawater  

SciTech Connect (OSTI)

Localized corrosion of duplex UNS S32550 stainless steel in seawater was investigated in the laboratory and in field trials for several surface finish conditions: polished, ground, and sandblasted. Electrochemical data obtained by polarization curves showed that the smoother, polished surface had better characteristics (higher pitting and protection potentials) than the ground or sandblasted surfaces. However, despite its high degree of roughness, the sandblasted surface was the most resistant in field conditions, exhibiting the lowest number of sites attacked. Internal compressive stresses created by sandblasting seem also to have an unsensitizing effect on sensitized zones that exist in cast steel (due to repairs of mold defects), reducing its susceptibility to microbiologically influenced corrosion (MIC). Such stresses are not generated in polished or ground surfaces, and localized MIC attack can occur.

Salah-Rousset, N.B.; Chaouachi, M.A. [ENIT, Tunis (Tunisia). Lab. of Metallurgy and Materials; Chellouf, A. [STEG, Tunis (Tunisia)

1996-04-01T23:59:59.000Z

168

Project plan international atomic energy agency (IAEA) safeguards project plutonium finishing plant  

SciTech Connect (OSTI)

This plan presents the overall objectives, description, justification and planning for the Plutonium Finishing Plant (PFP) International Atomic Energy Agency (IAEA) project. The intent of this plan is to describe how this project will be managed and integrated with other facility stabilization and deactivation activities. This plan supplements the overall integrated plan presented in the PFP Integrated Project Management Plan (PMP), HNF-3617, Rev. 0. This project plan is the top-level definitive project management document for the PFP IAEA project. It specifies the technical, schedule, requirements and the cost baselines to manage the execution of the IAEA project. Any deviations to the document must be authorized through the appropriate change control process.

BARTLETT, W.D.

1999-05-13T23:59:59.000Z

169

Evaluating sealed storage of high moisture sorghum grain for a beef finishing program  

E-Print Network [OSTI]

Bedaced coNan and rice, . cro. ge has resulted in a search for crops of hip& ecoiiomic return. har;w corsages h. =ve bean pi". uted to grain sor, -hum and, h ve proluced nigh yields. T%s, problem of, attkising this sorghum grain has sparked 4 grominp...~:fora ~ainee rn aver -j. ?s. of 2. l6 pounIls ~sr Dog, rhile thnie fel, ~nle ~in ~ in& 2. . 'I6 . ". our8O-~er 8:g. . i hi~her i -i . , Qsgres'o'f finish pgihishnr aellin, , price ve"s ohtcinel an 'ths steers fe4 tho' prounIi gs, g, ', Ponos statee. that enr...

Cross, Julian Frederick

2012-06-07T23:59:59.000Z

170

The chemistry of tributyl phosphate at elevated temperatures in the Plutonium Finishing Plant Process Vessels  

SciTech Connect (OSTI)

Potentially violent chemical reactions of the tributyl phosphate solvent used by the Plutonium Finishing Plant at the Hanford Site were investigated. There is a small probability that a significant quantity of this solvent could be accidental transferred to heated process vessels and react there with nitric acid or plutonium nitrate also present in the solvent extraction process. The results of laboratory studies of the reactions show that exothermic oxidation of tributyl phosphate by either nitric acid or actinide nitrates is slow at temperatures expected in the heated vessels. Less than four percent of the tributyl phosphate will be oxidized in these vented vessels at temperatures between 125{degrees}C and 250{degrees}C because the oxidant will be lost from the vessels by vaporization or decomposition before the tributyl phosphate can be extensively oxidized. The net amounts of heat generated by oxidation with concentrated nitric acid and with thorium nitrate (a stand-in for plutonium nitrate) were determined to be about -150 and -220 joules per gram of tributyl phosphate initially present, respectively. This is not enough heat to cause violent reactions in the vessels. Pyrolysis of the tributyl phosphate occurred in these mixtures at temperatures of 110{degrees}C to 270{degrees}C and produced mainly 1-butene gas, water, and pyrophosphoric acid. Butene gas generation is slow at expected process vessel temperatures, but the rate is faster at higher temperatures. At 252{degrees}C the rate of butene gas generated was 0.33 g butene/min/g of tributyl phosphate present. The measured heat absorbed by the pyrolysis reaction was 228 J/g of tributyl phosphate initially present (or 14.5 kcal/mole of tributyl phosphate). Release of flammable butene gas into process areas where it could ignite appears to be the most serious safety consideration for the Plutonium Finishing Plant.

Barney, G.S.; Cooper, T.D.

1994-06-01T23:59:59.000Z

171

Ceramic composites: Roles of fiber and interface  

SciTech Connect (OSTI)

Results are presented that elucidate (a) the effects of fiber coating on retained fiber strength and mechanical properties of Nicalon-fiber-reinforced SiC matrix composites, and (b) the role of residual stresses in the interfacial bond strength of SiC-fiber-reinforced reaction-bonded Si{sub 3}N{sub 4} matrix composites. For Nicalon-fiber-reinforced SiC matrix composites that were fractured in a flexural mode, retained in-situ fiber strength, ultimate strength, and work-of-fracture (WOF) of the composites increased with increasing thickness of the fiber coating and reached maximum values at a coating thickness of {approx} 0.3 {micro}m. A direct correlation between the variation of in-situ fiber strength and the variation of ultimate strength and WOF of the composites clearly indicates the critical role of the retained in-situ strength of reinforcing fibers in composites. Fiber pushout tests performed on SiC-fiber-reinforced reaction-bonded Si{sub 3}N{sub 4} matrix composites indicate that both debonding and frictional shear stresses decreased with increasing fiber content. These variations are consistent with the variation of residual radial stress on fibers, as measured by neutron diffraction, i.e., residual stresses decreased with increasing fiber content. Because fracture behavior is strongly controlled by interfacial bond strength, which is proportional to the residual radial stress, appropriate control of residual stress is critical in the design of composites with desired fracture properties.

Singh, J.P.; Singh, D. [Argonne National Lab., IL (United States). Energy Technology Div.

1997-09-01T23:59:59.000Z

172

Energy-Saving Landscaping for Your Passive Solar Home Landscaping is often regarded as a finishing touch to enhance  

E-Print Network [OSTI]

Energy-Saving Landscaping for Your Passive Solar Home Landscaping is often regarded as a finishing at 30o north of east. When the sun reaches its maximum height, again at solar noon when it is directly Energy Office North Carolina Department of Administration Industrial Extension Service College

173

An Overview of Surface Finishes and Their Role in Printed Circuit Board Solderability and Solder Joint Performance  

SciTech Connect (OSTI)

A overview has been presented on the topic of alternative surface finishes for package I/Os and circuit board features. Aspects of processability and solder joint reliability were described for the following coatings: baseline hot-dipped, plated, and plated-and-fused 100Sn and Sn-Pb coatings; Ni/Au; Pd, Ni/Pd, and Ni/Pd/Au finishes; and the recently marketed immersion Ag coatings. The Ni/Au coatings appear to provide the all-around best option in terms of solderability protection and wire bondability. Nickel/Pal ftishes offer a slightly reduced level of performance in these areas that is most likely due to variable Pd surface conditions. It is necessmy to minimize dissolved Au or Pd contents in the solder material to prevent solder joint embrittlement. Ancillary aspects that included thickness measurement techniques; the importance of finish compatibility with conformal coatings and conductive adhesives; and the need for alternative finishes for the processing of non-Pb bearing solders were discussed.

Vianco, P.T.

1998-10-15T23:59:59.000Z

174

Thermal Stability Studies of Candidate Decontamination Agents for Hanford’s Plutonium Finishing Plant Plutonium-Contaminated Gloveboxes  

SciTech Connect (OSTI)

This report provides the results of PNNL's and Fluor's studies of the thermal stabilities of potential wastes arising from decontamination of Hanford's Plutonium Finishing Plant's plutonium contaminated gloveboxes. The candidate wastes arising from the decontamination technologies ceric nitrate/nitric acid, RadPro, Glygel, and Aspigel.

Scheele, Randall D.; Cooper, Thurman D.; Jones, Susan A.; Ewalt, John R.; Compton, James A.; Trent, Donald S.; Edwards, Matthew K.; Kozelisky, Anne E.; Scott, Paul A.; Minette, Michael J.

2005-09-29T23:59:59.000Z

175

Exterior Insulation Finish System (EIFS) Walls ORNL provides the tools to enable industry to engineer durable, moisture-tolerant  

E-Print Network [OSTI]

Exterior Insulation Finish System (EIFS) Walls ORNL provides the tools to enable industry the insulating value of walls and the energy efficiency of buildings. The EIFS concept came to America from in both moisture control and insulating value. EIFS's are inherently superior on thermal performance

Oak Ridge National Laboratory

176

Carbon nanotube fiber spun from wetted ribbon  

DOE Patents [OSTI]

A fiber of carbon nanotubes was prepared by a wet-spinning method involving drawing carbon nanotubes away from a substantially aligned, supported array of carbon nanotubes to form a ribbon, wetting the ribbon with a liquid, and spinning a fiber from the wetted ribbon. The liquid can be a polymer solution and after forming the fiber, the polymer can be cured. The resulting fiber has a higher tensile strength and higher conductivity compared to dry-spun fibers and to wet-spun fibers prepared by other methods.

Zhu, Yuntian T; Arendt, Paul; Zhang, Xiefei; Li, Qingwen; Fu, Lei; Zheng, Lianxi

2014-04-29T23:59:59.000Z

177

Continuous Fiber Ceramic Composites (CFCC)  

SciTech Connect (OSTI)

This report summarizes work to develop CFCC's for various applications in the Industries of the Future (IOF) and power generation areas. Performance requirements range from relatively modest for hot gas filters to severe for turbine combustor liners and infrared burners. The McDermott Technology Inc. (MTI) CFCC program focused on oxide/oxide composite systems because they are known to be stable in the application environments of interest. The work is broadly focused on dense and porous composite systems depending on the specific application. Dense composites were targeted at corrosion resistant components, molten aluminum handling components and gas turbine combustor liners. The development work on dense composites led to significant advances in fiber coatings for oxide fibers and matrix densification. Additionally, a one-step fabrication process was developed to produce low cost composite components. The program also supported key developments in advanced oxide fibers that resulted in an improved version of Nextel 610 fiber (commercially available as Nextel 650) and significant progress in the development of a YAG/alumina fiber. Porous composite development focused on the vacuum winding process used to produce hot gas filters and infrared burner components.

R. A. Wagner

2002-12-18T23:59:59.000Z

178

Integrating fiber optic radiation dosimeter  

SciTech Connect (OSTI)

The purpose of this research effort was to determine the feasibility of forming a radiation sensor coupled to an optical fiber capable of measuring gamma photon, x-ray, and beta particle dose rates and integrated dose, and to construct a prototype dosimeter read-out system utilizing the fiber optic sensor. The key component of the prototype dosimeter system is a newly developed radiation sensitive storage phosphor. When this phosphor is excited by energetic radiation, a proportionate population of electron-hole pairs are created which become trapped at specific impurities within the phosphor. Trapped electrons can subsequently be stimulated optically with near-infrared at approximately 1 micrometer wavelength; the electrons can recombine with holes at luminescent centers to produce a luminescence which is directly proportional to the trapped electron population, and thus to the radiation exposure. By attaching the phosphor to the end of an optical fiber, it is possible to transmit both the IR optical stimulation and the characteristic phosphor luminescence through the fiber to and from the read-out instrument, which can be located far (e.g., kilometers) from the radiation field. This document reports on the specific design of the prototype system and its operating characteristics, including its sensitivity to various radiation dose rates and energies, its dynamic range, signal-to-noise ratio at various radiation intensities, and other system characteristics. Additionally, the radiation hardness of the phosphor and fiber are evaluated. 17 refs., 29 figs., 5 tabs.

Soltani, P.K.; Wrigley, C.Y.; Storti, G.M.; Creager, R.E.

1989-03-01T23:59:59.000Z

179

Graphitized-carbon fiber/carbon char fuel  

DOE Patents [OSTI]

A method for recovery of intact graphitic fibers from fiber/polymer composites is described. The method comprises first pyrolyzing the graphite fiber/polymer composite mixture and then separating the graphite fibers by molten salt electrochemical oxidation.

Cooper, John F. (Oakland, CA)

2007-08-28T23:59:59.000Z

180

advanced sic fiber: Topics by E-print Network  

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

23 24 25 Next Page Last Page Topic Index 1 Photonic Crystal Fibers Advances in Fiber Optics Physics Websites Summary: Photonic Crystal Fibers Advances in Fiber Optics Elliott L....

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Breakthrough: Better Fiber for Better Products  

SciTech Connect (OSTI)

Researchers at Idaho National Laboratory have developed a cost-effective method for the continuous production of alpha silicon carbide fiber. The exceptionally strong, lightweight fiber could enable significant performance improvements in many everyday products.

Griffith, George; Garnier, John

2012-01-01T23:59:59.000Z

182

Breakthrough: Better Fiber for Better Products  

ScienceCinema (OSTI)

Researchers at Idaho National Laboratory have developed a cost-effective method for the continuous production of alpha silicon carbide fiber. The exceptionally strong, lightweight fiber could enable significant performance improvements in many everyday products.

Griffith, George; Garnier, John;

2013-05-28T23:59:59.000Z

183

Fiber optic diffraction grating maker  

DOE Patents [OSTI]

A compact and portable diffraction grating maker is comprised of a laser beam, optical and fiber optics devices coupling the beam to one or more evanescent beam splitters, and collimating lenses or mirrors directing the split beam at an appropriate photosensitive material. The collimating optics, the output ends of the fiber optic coupler and the photosensitive plate holder are all mounted on an articulated framework so that the angle of intersection of the beams can be altered at will without disturbing the spatial filter, collimation or beam quality, and assuring that the beams will always intersect at the position of the plate. 4 figures.

Deason, V.A.; Ward, M.B.

1991-05-21T23:59:59.000Z

184

Fiber optic diffraction grating maker  

DOE Patents [OSTI]

A compact and portable diffraction grating maker comprised of a laser beam, optical and fiber optics devices coupling the beam to one or more evanescent beam splitters, and collimating lenses or mirrors directing the split beam at an appropriate photosensitive material. The collimating optics, the output ends of the fiber optic coupler and the photosensitive plate holder are all mounted on an articulated framework so that the angle of intersection of the beams can be altered at will without disturbing the spatial filter, collimation or beam quality, and assuring that the beams will always intersect at the position of the plate.

Deason, Vance A. (Idaho Falls, ID); Ward, Michael B. (Idaho Falls, ID)

1991-01-01T23:59:59.000Z

185

Sealed fiber-optic bundle feedthrough  

DOE Patents [OSTI]

A sealed fiber-optic bundle feedthrough by which a multitude of fiber-optic elements may be passed through an opening or port in a wall or structure separating two environments at different pressures or temperatures while maintaining the desired pressure or temperature in each environment. The feedthrough comprises a rigid sleeve of suitable material, a bundle of individual optical fibers, and a resin-based sealing material that bonds the individual optical fibers to each other and to the rigid sleeve.

Tanner, Carol E. (Niles, MI)

2002-01-01T23:59:59.000Z

186

High pressure fiber optic sensor system  

DOE Patents [OSTI]

The present application provides a fiber optic sensor system. The fiber optic sensor system may include a small diameter bellows, a large diameter bellows, and a fiber optic pressure sensor attached to the small diameter bellows. Contraction of the large diameter bellows under an applied pressure may cause the small diameter bellows to expand such that the fiber optic pressure sensor may measure the applied pressure.

Guida, Renato; Xia, Hua; Lee, Boon K; Dekate, Sachin N

2013-11-26T23:59:59.000Z

187

Fiber-optic displacement sensor system  

E-Print Network [OSTI]

. Light pulses from a light emitting diode (LED) were coupled into a multimode fiber. The displacement of a mirror positioned near the end of the fiber was measured by monitoring the amplitude of the reflected pulses. A reference reflection from a... emitting diode (LED) were coupled into a multimode fiber. The displacement of a mirror positioned near the end of the fiber was measured by monitoring the amplitude...

Cava, Norayda Nora

2012-06-07T23:59:59.000Z

188

Applications of fiber optics in physical protection  

SciTech Connect (OSTI)

The purpose of this NUREG is to provide technical information useful for the development of fiber-optic communications and intrusion detection subsystems relevant to physical protection. There are major sections on fiber-optic technology and applications. Other topics include fiber-optic system components and systems engineering. This document also contains a glossary, a list of standards and specifications, and a list of fiber-optic equipment vendors.

Buckle, T.H. [Sandia National Labs., Albuquerque, NM (United States)

1994-03-01T23:59:59.000Z

189

Assessing Deterioration of ADSS Fiber Optic Cables  

E-Print Network [OSTI]

Assessing Deterioration of ADSS Fiber Optic Cables Due to Corona Discharge Final Project Report of ADSS Fiber Optic Cables Due to Corona Discharge Final Project Report George G. Karady, Project Leader-Supporting) fiber optic cables installed on high voltage lines. The high electric field on those lines generates

190

Officials launch Carbon Fiber Technology Facility, announce  

E-Print Network [OSTI]

to reduce carbon fiber's high cost, Danielson noted: "Many of these new clean energy technologies are withinSCIENCE Officials launch Carbon Fiber Technology Facility, announce new manufacturing initiative and a large crowd of local business and civic leaders came to the Carbon Fiber Technology Facility (CFTF

Pennycook, Steve

191

History and stabilization of the Plutonium Finishing Plant (PFP) complex, Hanford Site  

SciTech Connect (OSTI)

The 231-Z Isolation Building or Plutonium Metallurgy Building is located in the Hanford Site`s 200 West Area, approximately 300 yards north of the Plutonium Finishing Plant (PFP) (234-5 Building). When the Hanford Engineer Works (HEW) built it in 1944 to contain the final step for processing plutonium, it was called the Isolation Building. At that time, HEW used a bismuth phosphate radiochemical separations process to make `AT solution,` which was then dried and shipped to Los Alamos, New Mexico. (AT solution is a code name used during World War II for the final HEW product.) The process was carried out first in T Plant and the 224-T Bulk Reduction Building and B Plant and the 224-B Bulk Reduction Building. The 224-T and -B processes produced a concentrated plutonium nitrate stream, which then was sent in 8-gallon batches to the 231-Z Building for final purification. In the 231-Z Building, the plutonium nitrate solution underwent peroxide `strikes` (additions of hydrogen peroxide to further separate the plutonium from its carrier solutions), to form the AT solution. The AT solution was dried and shipped to the Los Alamos Site, where it was made into metallic plutonium and then into weapons hemispheres.` The 231-Z Building began `hot` operations (operations using radioactive materials) with regular runs of plutonium nitrate on January 16, 1945.

Gerber, M.S., Fluor Daniel Hanford

1997-02-18T23:59:59.000Z

192

A comparison of several surface finish measurement methods as applied to ground ceramic and metal surfaces  

SciTech Connect (OSTI)

Surface finish is one of the most common measures of surface quality of ground ceramics and metal parts and a wide variety of methods and parameters have been developed to measure it. The purpose of this investigation was to compare the surface roughness parameters obtained on the same two specimens from three different types of measuring instruments: a traditional mechanical stylus system, a non-contact laser scanning system, and the atomic force microscope (two different AFM systems were compared). The same surface-ground silicon nitride and Inconel 625 alloy specimens were used for all measurements in this investigation. Significant differences in arithmetic average roughness, root-mean-square roughness, and peak-to-valley roughness were obtained when comparing data from the various topography measuring instruments. Non-contact methods agreed better with the others on the metal specimen than on the ceramic specimen. Reasons for these differences include the effective dimensions and geometry of the probe with respect to the surface topography; the reflectivity of the surface, and the type of filtering scheme Results of this investigation emphasize the importance of rigorously specifying the manner of surface roughness measurement when either reporting roughness data or when requesting that roughness data be provided.

Blau, P.J.; Martin, R.L.; Riester, L.

1996-01-01T23:59:59.000Z

193

Thermal Performance of Exterior Insulation and Finish Systems Containing Vacuum Insulation Panels  

SciTech Connect (OSTI)

A high-performance wall system is under development to improve wall thermal performance to a level of U-factor of 0.19 W/(m2 K) (R-30 [h ft2 F]/Btu) in a standard wall thickness by incorporating vacuum insulation panels (VIPs) into an exterior insulation finish system (EIFS). Such a system would be applicable to new construction and will offer a solution to more challenging retrofit situations as well. Multiple design options were considered to balance the need to protect theVIPs during construction and building operation, while minimizing heat transfer through the wall system. The results reported here encompass an indepth assessment of potential system performances including thermal modeling, detailed laboratory measurements under controlled conditions on the component, and system levels according to ASTM C518 (ASTM 2010). The results demonstrate the importance of maximizing the VIP coverage over the wall face. The results also reveal the impact of both the design and execution of system details, such as the joints between adjacent VIPs. The test results include an explicit modeled evaluation of the system performance in a clear wall.

Childs, Kenneth W [ORNL; Stovall, Therese K [ORNL; Biswas, Kaushik [ORNL; Carbary, Lawrence D [Dow Corning Corporation, Midland, MI

2013-01-01T23:59:59.000Z

194

Comparison of Photoluminescence Imaging on Starting Multi-Crystalline Silicon Wafers to Finished Cell Performance: Preprint  

SciTech Connect (OSTI)

Photoluminescence (PL) imaging techniques can be applied to multicrystalline silicon wafers throughout the manufacturing process. Both band-to-band PL and defect-band emissions, which are longer-wavelength emissions from sub-bandgap transitions, are used to characterize wafer quality and defect content on starting multicrystalline silicon wafers and neighboring wafers processed at each step through completion of finished cells. Both PL imaging techniques spatially highlight defect regions that represent dislocations and defect clusters. The relative intensities of these imaged defect regions change with processing. Band-to-band PL on wafers in the later steps of processing shows good correlation to cell quality and performance. The defect band images show regions that change relative intensity through processing, and better correlation to cell efficiency and reverse-bias breakdown is more evident at the starting wafer stage as opposed to later process steps. We show that thermal processing in the 200 degrees - 400 degrees C range causes impurities to diffuse to different defect regions, changing their relative defect band emissions.

Johnston, S.; Yan, F.; Dorn, D.; Zaunbrecher, K.; Al-Jassim, M.; Sidelkheir, O.; Ounadjela, K.

2012-06-01T23:59:59.000Z

195

A Plutonium Finishing Plant Model for the Cercla Removal Action and Decommissioning Construction Final Report  

SciTech Connect (OSTI)

The joint policy between the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Energy (DOE) for decommissioning buildings at DOE facilities documents an agreement between the agencies to perform decommissioning activities including demolition under the Comprehensive Environmental Response Compensation and Liability Act (CERCLA). The use of removal actions for decommissioning integrates EPA oversight authority, DOE lead agency responsibility, and state authority for decommissioning activities. Once removal actions have been performed under CERCLA, a construction completion report is required to document the completion of the required action. Additionally, a decommissioning report is required under DOE guidance. No direct guidance was found for documenting completion of decommissioning activities and preparing a final report that satisfies the CERCLA requirements and the DOE requirements for decommissioning. Additional guidance was needed for the documentation of construction completion under CERCLA for D and D projects undertaken under the joint policy that addresses the requirements of both agencies. A model for the construction completion report was developed to document construction completion for CERCLA D and D activities performed under the joint EPA/DOE policy at the Plutonium Finishing Plant (PFP). The model documentation report developed at PFP integrates the DOE requirements for establishing decommissioning end-points, documenting end-point completion and preparing a final decommissioning report with the CERCLA requirements to document completion of the action identified in the Action Memorandum (AM). The model includes the required information on health and safety, data management, cost and schedule and end-points completion. (authors)

Hopkins, A. [Fluor Hanford, Inc, Richland, WA (United States)

2008-07-01T23:59:59.000Z

196

Fiber-type dosimeter with improved illuminator  

DOE Patents [OSTI]

A single-piece, molded plastic, Cassigrainian-type condenser arrangement is incorporated in a tubular-shaped personal pocket dosimeter of the type which combines an ionization chamber with an optically-read fiber electrometer to provide improved illumination of the electrometer fiber. The condenser routes incoming light from one end of the dosimeter tubular housing around a central axis charging pin assembly and focuses the light at low angles to the axis so that it falls within the acceptance angle of the electrometer fiber objective lens viewed through an eyepiece lens disposed in the opposite end of the dosimeter. This results in improved fiber illumination and fiber image contrast.

Fox, Richard J. (Oak Ridge, TN)

1987-01-01T23:59:59.000Z

197

Fiber-type dosimeter with improved illuminator  

DOE Patents [OSTI]

A single-piece, molded plastic, Cassigrainian-type condenser arrangement is incorporated in a tubular-shaped personal pocket dosimeter of the type which combines an ionization chamber with an optically-read fiber electrometer to provide improved illumination of the electrometer fiber. The condenser routes incoming light from one end of the dosimeter tubular housing around a central axis charging pin assembly and focuses the light at low angles to the axis so that it falls within the acceptance angle of the electrometer fiber objective lens viewed through an eyepiece lens disposed in the opposite end of the dosimeter. This results in improved fiber illumination and fiber image contrast.

Fox, R.J.

1985-12-23T23:59:59.000Z

198

Fabrication of miniature fiber-optic temperature sensors  

DOE Patents [OSTI]

A method of coupling a silica fiber and a sapphire fiber includes providing a silica fiber having a doped core and a cladding layer, with the doped core having a prescribed diameter, providing a sapphire fiber having a diameter less than the doped core, placing an end of the sapphire fiber in close proximity to an end of the silica fiber, applying a heat source to the end of silica fiber and introducing the end of sapphire fiber into the heated doped core of the silica fiber to produce a coupling between the silica and sapphire fibers.

Zhu, Yizheng (Durham, NC); Wang, Anbo (Blacksburg, VA)

2010-07-27T23:59:59.000Z

199

Side-emitting fiber optic position sensor  

DOE Patents [OSTI]

A side-emitting fiber optic position sensor and method of determining an unknown position of an object by using the sensor. In one embodiment, a concentrated beam of light source illuminates the side of a side-emitting fiber optic at an unknown axial position along the fiber's length. Some of this side-illuminated light is in-scattered into the fiber and captured. As the captured light is guided down the fiber, its intensity decreases due to loss from side-emission away from the fiber and from bulk absorption within the fiber. By measuring the intensity of light emitted from one (or both) ends of the fiber with a photodetector(s), the axial position of the light source is determined by comparing the photodetector's signal to a calibrated response curve, look-up table, or by using a mathematical model. Alternatively, the side-emitting fiber is illuminated at one end, while a photodetector measures the intensity of light emitted from the side of the fiber, at an unknown position. As the photodetector moves further away from the illuminated end, the detector's signal strength decreases due to loss from side-emission and/or bulk absorption. As before, the detector's signal is correlated to a unique position along the fiber.

Weiss, Jonathan D. (Albuquerque, NM)

2008-02-12T23:59:59.000Z

200

Electrical Properties of Carbon Fiber Support Systems  

E-Print Network [OSTI]

Carbon fiber support structures have become common elements of detector designs for high energy physics experiments. Carbon fiber has many mechanical advantages but it is also characterized by high conductivity, particularly at high frequency, with associated design issues. This paper discusses the elements required for sound electrical performance of silicon detectors employing carbon fiber support elements. Tests on carbon fiber structures are presented indicating that carbon fiber must be regarded as a conductor for the frequency region of 10 to 100 MHz. The general principles of grounding configurations involving carbon fiber structures will be discussed. To illustrate the design requirements, measurements performed with a silicon detector on a carbon fiber support structure at small radius are presented. A grounding scheme employing copper-kapton mesh circuits is described and shown to provide adequate and robust detector performance.

W. Cooper; C. Daly; M. Demarteau; J. Fast; K. Hanagaki; M. Johnson; W. Kuykendall; H. Lubatti; M. Matulik; A. Nomerotski; B. Quinn; J. Wang

2005-04-19T23:59:59.000Z

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Optical fiber sensors for harsh environments  

DOE Patents [OSTI]

A diaphragm optic sensor comprises a ferrule including a bore having an optical fiber disposed therein and a diaphragm attached to the ferrule, the diaphragm being spaced apart from the ferrule to form a Fabry-Perot cavity. The cavity is formed by creating a pit in the ferrule or in the diaphragm. The components of the sensor are preferably welded together, preferably by laser welding. In some embodiments, the entire ferrule is bonded to the fiber along the entire length of the fiber within the ferrule; in other embodiments, only a portion of the ferrule is welded to the fiber. A partial vacuum is preferably formed in the pit. A small piece of optical fiber with a coefficient of thermal expansion chosen to compensate for mismatches between the main fiber and ferrule may be spliced to the end of the fiber.

Xu, Juncheng; Wang, Anbo

2007-02-06T23:59:59.000Z

202

Fiber Characteristics and Spinning Performance of Mechanically-Stripped Cotton on the High Plains.  

E-Print Network [OSTI]

results Nep count (neps per 100 square inches card web-40 gr. sliver) Average 12 Range 8-19 Picking and carding waste (percent) Average 23.56 Range . 17.56-27.22 Yam strength-skein (pounds) Twist multiple Yarn hTo. 11's 14's 22's 28's 3...

Paulson, W. E.; Hessler, L. E.; Ward, J. M.

1953-01-01T23:59:59.000Z

203

E-Print Network 3.0 - automated fiber placement Sample Search...  

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

Bonding for Active Summary: Epoxyless Fiber-to-Submount Bonding for Active Fiber Optoelectronic and Fiber Backplane Applications Don C... Abstract--A fiber-coupled optical...

204

Plutonium Finishing Plant (PFP) Final Safety Analysis Report (FSAR) [SEC 1 THRU 11  

SciTech Connect (OSTI)

The Plutonium Finishing Plant (PFP) is located on the US Department of Energy (DOE) Hanford Site in south central Washington State. The DOE Richland Operations (DOE-RL) Project Hanford Management Contract (PHMC) is with Fluor Hanford Inc. (FH). Westinghouse Safety Management Systems (WSMS) provides management support to the PFP facility. Since 1991, the mission of the PFP has changed from plutonium material processing to preparation for decontamination and decommissioning (D and D). The PFP is in transition between its previous mission and the proposed D and D mission. The objective of the transition is to place the facility into a stable state for long-term storage of plutonium materials before final disposition of the facility. Accordingly, this update of the Final Safety Analysis Report (FSAR) reflects the current status of the buildings, equipment, and operations during this transition. The primary product of the PFP was plutonium metal in the form of 2.2-kg, cylindrical ingots called buttoms. Plutonium nitrate was one of several chemical compounds containing plutonium that were produced as an intermediate processing product. Plutonium recovery was performed at the Plutonium Reclamation Facility (PRF) and plutonium conversion (from a nitrate form to a metal form) was performed at the Remote Mechanical C (RMC) Line as the primary processes. Plutonium oxide was also produced at the Remote Mechanical A (RMA) Line. Plutonium processed at the PFP contained both weapons-grade and fuels-grade plutonium materials. The capability existed to process both weapons-grade and fuels-grade material through the PRF and only weapons-grade material through the RMC Line although fuels-grade material was processed through the line before 1984. Amounts of these materials exist in storage throughout the facility in various residual forms left from previous years of operations.

ULLAH, M K

2001-02-26T23:59:59.000Z

205

DEACTIVATION AND DECOMMISSIONING ENVIRONMENTAL STRATEGY FOR THE PLUTONIUM FINISHING PLANT COMPLEX, HANFORD NUCLEAR RESERVATION  

SciTech Connect (OSTI)

Maintaining compliance with environmental regulatory requirements is a significant priority in successful completion of the Plutonium Finishing Plant (PFP) Nuclear Material Stabilization (NMS) Project. To ensure regulatory compliance throughout the deactivation and decommissioning of the PFP complex, an environmental regulatory strategy was developed. The overall goal of this strategy is to comply with all applicable environmental laws and regulations and/or compliance agreements during PFP stabilization, deactivation, and eventual dismantlement. Significant environmental drivers for the PFP Nuclear Material Stabilization Project include the Tri-Party Agreement; the Resource Conservation and Recovery Act of 1976 (RCRA); the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA); the National Environmental Policy Act of 1969 (NEPA); the National Historic Preservation Act (NHPA); the Clean Air Act (CAA), and the Clean Water Act (CWA). Recent TPA negotiation s with Ecology and EPA have resulted in milestones that support the use of CERCLA as the primary statutory framework for decommissioning PFP. Milestones have been negotiated to support the preparation of Engineering Evaluations/Cost Analyses for decommissioning major PFP buildings. Specifically, CERCLA EE/CA(s) are anticipated for the following scopes of work: Settling Tank 241-Z-361, the 232-Z Incinerator, , the process facilities (eg, 234-5Z, 242, 236) and the process facility support buildings. These CERCLA EE/CA(s) are for the purpose of analyzing the appropriateness of the slab-on-grade endpoint Additionally, agreement was reached on performing an evaluation of actions necessary to address below-grade structures or other structures remaining after completion of the decommissioning of PFP. Remaining CERCLA actions will be integrated with other Central Plateau activities at the Hanford site.

Hopkins, A.M.; Heineman, R.; Norton, S.; Miller, M.; Oates, L.

2003-02-27T23:59:59.000Z

206

Evaluation of glandless cottonseed meal plus lysine as a substitute for soybean meal in swine starter and growing-finishing diets  

E-Print Network [OSTI]

EVALUATION OF GLANDIZSS COTTONSEED MEAL PLUS LYSINE AS A SUBSTITUTE FOR SOYBEAN MEAL IN SWINE STARTER AND GROWING-FINISHING DIETS A Thesis by DAVID CHARLES LARUE Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE December 1982 Major Subject: Nutrition EVALUATION OF GLANDLESS COTTONSEED MEAL PLUS LYSINE AS A SUBSTITUTE FOR SOYBEAN MEAL IN SWINE STARTER AND GROWING-FINISHING DIETS A Thesis by DAVID CHARLES LARUE...

LaRue, David Charles

1982-01-01T23:59:59.000Z

207

Carbon fibers from SRC pitch  

DOE Patents [OSTI]

This invention relates to an improved method of manufacturing carbon fibers from a coal derived pitch. The improvement resides in the use of a solvent refined coal which has been hydrotreated and subjected to solvent extraction whereby the hetero atom content in the resulting product is less than 4.0% by weight and the softening point is between about 100.degree.-250.degree. F.

Greskovich, Eugene J. (Allentown, PA); Givens, Edwin N. (Bethlehem, PA)

1981-01-01T23:59:59.000Z

208

A Model for Fiber Length Attrition in Injection-Molded Long-Fiber Composites  

SciTech Connect (OSTI)

Long-fiber thermoplastic (LFT) composites consist of an engineering thermoplastic matrix with glass or carbon reinforcing fibers that are initially 10 to 13 mm long. When an LFT is injection molded, flow during mold filling orients the fibers and degrades the fiber length. Fiber orientation models for injection molding are well developed, and special orientation models for LFTs have been developed. Here we present a detailed quantitative model for fiber length attrition in a flowing fiber suspension. The model tracks a discrete fiber length distribution (FLD) at each spatial node. Key equations are a conservation equation for total fiber length, and a breakage rate equation. The breakage rate is based on buckling of fibers due to hydrodynamic forces, when the fibers are in unfavorable orientations. The FLD model is combined with a mold filling simulation to predict spatial and temporal variations in fiber length distribution in a mold cavity during filling. The predictions compare well to experiments on a glassfiber/ PP LFT molding. Fiber length distributions predicted by the model are easily incorporated into micromechanics models to predict the stress-strain behavior of molded LFT materials. Author to whom correspondence should be addressed; electronic mail: ctucker@illinois.edu 1

TuckerIII, Charles L. [University of Illinois, Urbana-Champaign; Phelps, Jay H [University of Illinois, Urbana-Champaign; El-Rahman, Ahmed Abd [University of Illinois, Urbana-Champaign; Kunc, Vlastimil [ORNL

2013-01-01T23:59:59.000Z

209

Rugged fiber optic probe for raman measurement  

DOE Patents [OSTI]

An optical probe for conducting light scattering analysis is disclosed. The probe comprises a hollow housing and a probe tip. A fiber assembly made up of a transmitting fiber and a receiving bundle is inserted in the tip. A filter assembly is inserted in the housing and connected to the fiber assembly. A signal line from the light source and to the spectrometer also is connected to the filter assembly and communicates with the fiber assembly. By using a spring-loaded assembly to hold the fiber connectors together with the in-line filters, complex and sensitive alignment procedures are avoided. The close proximity of the filter assembly to the probe tip eliminates or minimizes self-scattering generated by the optical fiber. Also, because the probe can contact the sample directly, sensitive optics can be eliminated.

O'Rourke, Patrick E. (Martinez, GA); Toole, Jr., William R. (Aiken, SC); Nave, Stanley E. (Evans, GA)

1998-01-01T23:59:59.000Z

210

Characterization of three dimensional fiber orientation in short-fiber composites  

SciTech Connect (OSTI)

A mathematical procedure for recovering from image analysis the three dimensional nonsymmetric fiber-orientation distribution in short-fiber composites is proposed. Microphotographs from two orthogonal faces of a composite sample are needed to determine the three dimensional fiber orientation. A simple weighting function is derived to take into account the probability of intercepting fibers at varying inclination angles. The present procedure improves the previous works of other researchers in the following two aspects. First, it can obtain the single-angle fiber-orientation distribution from one micrograph in reference to the normal of the photographed surface. This distribution is often needed in predicting the mechanical and physical properties of short-fiber composites in this direction. Second, no symmetry in fiber-orientation distribution is assumed in the determination of the three dimensional fiber-orientation, which makes the present procedure more practical and versatile.

Zhu, Yuntian T.; Blumenthal, W.R.

1995-05-01T23:59:59.000Z

211

The effects of fiber waviness on the compressive response of fiber reinforced composite materials  

E-Print Network [OSTI]

mathematical models, based on Euler- Bernoulli beams supported by elastic matrix layers, are developed for predicting the compressive behavior of composites with some initial waviness. The models include several single fiber models and one series of fibers... LIST OF FIGURES Figure 1: Tensile vs. Compressive Problem Figure 2: Photograph of Initial Fiber Waviness Figure 3: Fiber Waviness Representative Volume Figure 4: Dimensions and Coordinates Figure 5: Matrix Coordinates Figure 6: Composite...

Davis, John Jerome

1989-01-01T23:59:59.000Z

212

Carbon Fiber Damage in Accelerator Beam  

E-Print Network [OSTI]

Carbon fibers are commonly used as moving targets in Beam Wire Scanners. Because of their thermomechanical properties they are very resistant to particle beams. Their strength deteriorates with time due to radiation damage and low-cycle thermal fatigue. In case of high intensity beams this process can accelerate and in extreme cases the fiber is damaged during a single scan. In this work a model describing the fiber temperature, thermionic emission and sublimation is discussed. Results are compared with fiber damage test performed on SPS beam in November 2008. In conclusions the limits of Wire Scanner operation on high intensity beams are drawn.

Sapinski, M; Guerrero, A; Koopman, J; Métral, E

2009-01-01T23:59:59.000Z

213

ELECTROSPUN POLYMER-FIBER SOLAR CELL.  

E-Print Network [OSTI]

??A study of fabricating the first electrospun polymer-fiber solar cell with MEHPPV is presented. Motivation for the work and a brief history of solar cell… (more)

Nagata, Shinobu

2011-01-01T23:59:59.000Z

214

Natural Fiber Composites: Retting, Preform Manufacture & Molding...  

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

Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. lm12smith.pdf More Documents & Publications Natural Fiber Composites: Retting, Preform...

215

Natural Fiber Composites: Retting, Preform Manufacture & Molding...  

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

"Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland. merit08smith3.pdf More Documents & Publications Natural Fiber Composites: Retting, Preform...

216

Compound droplet manipulations on fiber arrays  

E-Print Network [OSTI]

Recent works demonstrated that fiber arrays may constitue the basis of an open digital microfluidics. Various processes, such as droplet motion, fragmentation, trapping, release, mixing and encapsulation, may be achieved on fiber arrays. However, handling a large number of tiny droplets resulting from the mixing of several liquid components is still a challenge for developing microreactors, smart sensors or microemulsifying drugs. Here, we show that the manipulation of tiny droplets onto fiber networks allows for creating compound droplets with a high complexity level. Moreover, this cost-effective and flexible method may also be implemented with optical fibers in order to develop fluorescence-based biosensor.

Weyer, Floriane; Dreesen, Laurent; Vandewalle, Nicolas

2015-01-01T23:59:59.000Z

217

Estimation of ovular fiber production in cotton  

SciTech Connect (OSTI)

The present invention is a method for rendering cotton fiber cells that are post-anthesis and pre-harvest available for analysis of their physical properties. The method includes the steps of hydrolyzing cotton fiber cells and separating cotton fiber cells from cotton ovules thereby rendering the cells available for analysis. The analysis of the fiber cells is through any suitable means, e.g., visual inspection. Visual inspection of the cells can be accomplished by placing the cells under an instrument for detection, such as microscope or other means.

Van't Hof, Jack (Brookhaven, NY)

1998-09-01T23:59:59.000Z

218

Estimation of ovular fiber production in cotton  

SciTech Connect (OSTI)

The present invention is a method for rendering cotton fiber cells that are post-anthesis and pre-harvest available for analysis of their physical properties. The method includes the steps of hydrolyzing cotton fiber cells and separating cotton fiber cells from cotton ovules thereby rendering the cells available for analysis. The analysis of the fiber cells is through any suitable means, e.g., visual inspection. Visual inspection of the cells can be accomplished by placing the cells under an instrument for detection, such as microscope or other means. 4 figs.

Van`t Hof, J.

1998-09-01T23:59:59.000Z

219

Plutonium Finishing Plan (PFP) Treatment and Storage Unit Interim Status Closure Plan  

SciTech Connect (OSTI)

This document describes the planned activities and performance standards for closing the Plutonium Finishing Plant (PFP) Treatment and Storage Unit. The PFP Treatment and Storage Unit is located within the 234-52 Building in the 200 West Area of the Hanford Facility. Although this document is prepared based upon Title 40 Code of Federal Regulations (CFR), Part 265, Subpart G requirements, closure of the unit will comply with Washington Administrative Code (WAC) 173-303-610 regulations pursuant to Section 5.3 of the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) Action Plan (Ecology et al. 1996). Because the PFP Treatment and Storage Unit manages transuranic mixed (TRUM) waste, there are many controls placed on management of the waste. Based on the many controls placed on management of TRUM waste, releases of TRUM waste are not anticipated to occur in the PFP Treatment and Storage Unit. Because the intention is to clean close the PFP Treatment and Storage Unit, postclosure activities are not applicable to this closure plan. To clean close the unit, it will be demonstrated that dangerous waste has not been left onsite at levels above the closure performance standard for removal and decontamination. If it is determined that clean closure is not possible or is environmentally impractical, the closure plan will be modified to address required postclosure activities. The PFP Treatment and Storage Unit will be operated to immobilize and/or repackage plutonium-bearing waste in a glovebox process. The waste to be processed is in a solid physical state (chunks and coarse powder) and will be sealed into and out of the glovebox in closed containers. The containers of immobilized waste will be stored in the glovebox and in additional permitted storage locations at PFP. The waste will be managed to minimize the potential for spills outside the glovebox, and to preclude spills from reaching soil. Containment surfaces will be maintained to ensure integrity. In the unlikely event that a waste spill does occur outside the glovebox, operating methods and administrative controls will require that waste spills be cleaned up promptly and completely, and a notation will be made in the operating record. Because dangerous waste does not include source, special nuclear, and by-product material components of mixed waste, radionuclides are not within the scope of this documentation. The information on radionuclides is provided only for general knowledge.

PRIGNANO, A.L.

2000-07-01T23:59:59.000Z

220

Low noise erbium fiber fs frequency comb based on a tapered-fiber carbon nanotube design  

E-Print Network [OSTI]

Low noise erbium fiber fs frequency comb based on a tapered-fiber carbon nanotube design Tsung-fiber carbon nanotube (tf-CNT) design. We mitigate dominant noise sources to show that the free-running linewidth of the carrier-envelope offset frequency (fceo) can be comparable to the best reported performance

Kieu, Khanh

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Efficiency of pump absorption in double-clad fiber amplifiers. I. Fiber with circular symmetry  

E-Print Network [OSTI]

Efficiency of pump absorption in double-clad fiber amplifiers. I. Fiber with circular symmetry with an absorbing core is treated as a model for pump absorption in a double-clad optical fiber amplifier. Mode the pump absorption and is analyzed in the speckle-mode approximation for the example of a Kerr

Kouznetsov, Dmitrii

222

Low-coherent WDM reflectometry for accurate fiber length monitoring  

E-Print Network [OSTI]

A fiber-optic low-coherent reflectometer was developed to accurately monitor fiber length variation. A large length-coverage range was obtained by using a fiber Bragg grating array in a wavelength-division-multiplexing ...

Hui, Rongqing; Thomas, J.; Allen, Christopher Thomas; Fu, B.; Gao, S.

2003-01-01T23:59:59.000Z

223

alcohol fiber reinforced: Topics by E-print Network  

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

AND SHM OF CARBON FIBER REINFORCED POLYMER PART I : IMPEDANCE ANALYSIS-performance composite materials based on carbon fiber are increasingly used in critical security areas...

224

Vehicle Technologies Office Merit Review 2014: Carbon Fiber Technology...  

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

Vehicle Technologies Office Merit Review 2014: Carbon Fiber Technology Facility Vehicle Technologies Office Merit Review 2014: Carbon Fiber Technology Facility Presentation given...

225

Oak Ridge National Laboratory Carbon Fiber Technology Facility  

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

Oak Ridge National Laboratory Carbon Fiber Technology Facility Low-Cost Carbon Fiber | Proposal Guidelines Proposal Guidelines Proposals should be no more than 5 single spaced...

226

Renewable, Low-Cost Carbon Fiber for Lightweight Vehicles: Summary...  

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

Renewable, Low-Cost Carbon Fiber for Lightweight Vehicles: Summary Report Renewable, Low-Cost Carbon Fiber for Lightweight Vehicles: Summary Report This report outlines the final...

227

acontinuous fiber optic: Topics by E-print Network  

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

19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Fiber receptacle Collection optics Computer Technologies and Information Sciences Websites Summary: Fiber receptacle ...

228

Fiber optic probe having fibers with endfaces formed for improved coupling efficiency and method using same  

DOE Patents [OSTI]

A fiber optic probe for detecting scattered light, with transmitting and receiving fibers having slanted ends and bundled together to form a bevel within the tip of the probe. The probe comprises a housing with a transparent window across its tip for protecting the transmitting and receiving fibers held therein. The endfaces of the fibers are slanted, by cutting, polishing and the like, so that they lie in a plane that is not perpendicular to the longitudinal axis of the respective fiber. The fibers are held in the tip of the probe using an epoxy and oriented so that lines normal to the slanted endfaces are divergent with respect to one another. The epoxy, which is positioned substantially between the transmitting and receiving fibers, is tapered so that the transmitting fiber, the epoxy and the receiving fiber form a bevel of not more than 20 degrees. The angled fiber endfaces cause directing of the light cones toward each other, resulting in improved light coupling efficiency. A light absorber, such as carbon black, is contained in the epoxy to reduce crosstalk between the transmitting and receiving fibers.

O'Rourke, Patrick E. (Martinez, GA); Livingston, Ronald R. (Aiken, SC)

1995-01-01T23:59:59.000Z

229

Fiber optic probe having fibers with endfaces formed for improved coupling efficiency and method using same  

DOE Patents [OSTI]

A fiber optic probe is disclosed for detecting scattered light, with transmitting and receiving fibers having slanted ends and bundled together to form a bevel within the tip of the probe. The probe comprises a housing with a transparent window across its tip for protecting the transmitting and receiving fibers held therein. The endfaces of the fibers are slanted, by cutting, polishing and the like, so that they lie in a plane that is not perpendicular to the longitudinal axis of the respective fiber. The fibers are held in the tip of the probe using an epoxy and oriented so that lines normal to the slanted endfaces are divergent with respect to one another. The epoxy, which is positioned substantially between the transmitting and receiving fibers, is tapered so that the transmitting fiber, the epoxy and the receiving fiber form a bevel of not more than 20 degrees. The angled fiber endfaces cause directing of the light cones toward each other, resulting in improved light coupling efficiency. A light absorber, such as carbon black, is contained in the epoxy to reduce crosstalk between the transmitting and receiving fibers. 3 figures.

O`Rourke, P.E.; Livingston, R.R.

1995-03-28T23:59:59.000Z

230

Fiber-optic liquid level sensor  

DOE Patents [OSTI]

A fiber-optic liquid level sensor measures the height of a column of liquid through the hydrostatic pressure it produces. The sensor employs a fiber-optic displacement sensor to detect the pressure-induced displacement of the center of a corrugated diaphragm.

Weiss, Jonathan D. (Albuquerque, NM)

1991-01-01T23:59:59.000Z

231

The transport properties of activated carbon fibers  

SciTech Connect (OSTI)

The transport properties of activated isotropic pitch-based carbon fibers with surface area 1000 m{sup 2}/g have been investigated. We report preliminary results on the electrical conductivity, the magnetoresistance, the thermal conductivity and the thermopower of these fibers as a function of temperature. Comparisons are made to transport properties of other disordered carbons. 19 refs., 4 figs.

di Vittorio, S.L. (Massachusetts Inst. of Tech., Cambridge, MA (USA). Dept. of Materials Science and Engineering); Dresselhaus, M.S. (Massachusetts Inst. of Tech., Cambridge, MA (USA). Dept. of Electrical Engineering and Computer Science Massachusetts Inst. of Tech., Cambridge, MA (USA). Dept. of Physics); Endo, M. (Shinshu Univ., Nagano (Japan). Dept. of Electrical Engineering); Issi, J-P.; Piraux, L.

1990-07-01T23:59:59.000Z

232

Carbon Fiber Composite Pyramidal Lattice Structures  

E-Print Network [OSTI]

Carbon Fiber Composite Pyramidal Lattice Structures A Thesis Presented to the faculty of the School the facesheets and the core were created from pre-cured, bi-axial carbon fiber laminated plates. The cores were approach which permits lattice fabrication from high specific strength aluminum and titanium alloys. Carbon

Wadley, Haydn

233

Fiber-optic voltage sensor with cladded fiber and evanescent wave variation detection  

DOE Patents [OSTI]

A fiber optic voltage sensor is described which includes a source of light, a reference fiber for receiving a known percentage of the light and an electrostrictive element having terminals across which is applied, a voltage to be measured. The electrostrictive element is responsive to the applied voltage to assume an altered physical state. A measuring fiber also receives a known percentage of light from the light source and is secured about the electrostrictive element. The measuring fiber is provided with a cladding and exhibits an evanescent wave in the cladding. The measuring fiber has a known length which is altered when the electrostrictive element assumes its altered physical state. A differential sensor is provided which senses the intensity of light in both the reference fiber and the measuring fiber and provides an output indicative of the difference between the intensities. 3 figs.

Wood, C.B.

1992-12-15T23:59:59.000Z

234

Remotely readable fiber optic compass  

DOE Patents [OSTI]

A remotely readable fiber optic compass. A sheet polarizer is affixed to a magnet rotatably mounted in a compass body, such that the polarizer rotates with the magnet. The optical axis of the sheet polarizer is preferably aligned with the north-south axis of the magnet. A single excitation light beam is divided into four identical beams, two of which are passed through the sheet polarizer and through two fixed polarizing sheets which have their optical axes at right angles to one another. The angle of the compass magnet with respect to a fixed axis of the compass body can be determined by measuring the ratio of the intensities of the two light beams. The remaining ambiguity as to which of the four possible quadrants the magnet is pointing to is resolved by the second pair of light beams, which are passed through the sheet polarizer at positions which are transected by two semicircular opaque strips formed on the sheet polarizer. The incoming excitation beam and the four return beams are communicated by means of optical fibers, giving a remotely readable compass which has no electrical parts.

Migliori, Albert (Santa Fe, NM); Swift, Gregory W. (Los Alamos, NM); Garrett, Steven L. (Pebble Beach, CA)

1986-01-01T23:59:59.000Z

235

Carbon fiber manufacturing via plasma technology  

DOE Patents [OSTI]

The disclosed invention introduces a novel method of manufacturing carbon and/or graphite fibers that avoids the high costs associated with conventional carbonization processes. The method of the present invention avoids these costs by utilizing plasma technology in connection with electromagnetic radiation to produce carbon and/or graphite fibers from fully or partially stabilized carbon fiber precursors. In general, the stabilized or partially stabilized carbon fiber precursors are placed under slight tension, in an oxygen-free atmosphere, and carbonized using a plasma and electromagnetic radiation having a power input which is increased as the fibers become more carbonized and progress towards a final carbon or graphite product. In an additional step, the final carbon or graphite product may be surface treated with an oxygen-plasma treatment to enhance adhesion to matrix materials.

Paulauskas, Felix L. (Knoxville, TN); Yarborough, Kenneth D. (Oak Ridge, TN); Meek, Thomas T. (Knoxville, TN)

2002-01-01T23:59:59.000Z

236

PLUTONIUM FINISHING PLANT (PFP) 241-Z LIQUID WASTE TREATMENT FACILITY DEACTIVATION AND DEMOLITION  

SciTech Connect (OSTI)

Fluor Hanford, Inc. (FH) is proud to submit the Plutonium Finishing Plant (PFP) 241-Z liquid Waste Treatment Facility Deactivation and Demolition (D&D) Project for consideration by the Project Management Institute as Project of the Year for 2008. The decommissioning of the 241-Z Facility presented numerous challenges, many of which were unique with in the Department of Energy (DOE) Complex. The majority of the project budget and schedule was allocated for cleaning out five below-grade tank vaults. These highly contaminated, confined spaces also presented significant industrial safety hazards that presented some of the most hazardous work environments on the Hanford Site. The 241-Z D&D Project encompassed diverse tasks: cleaning out and stabilizing five below-grade tank vaults (also called cells), manually size-reducing and removing over three tons of process piping from the vaults, permanently isolating service utilities, removing a large contaminated chemical supply tank, stabilizing and removing plutonium-contaminated ventilation ducts, demolishing three structures to grade, and installing an environmental barrier on the demolition site . All of this work was performed safely, on schedule, and under budget. During the deactivation phase of the project between November 2005 and February 2007, workers entered the highly contaminated confined-space tank vaults 428 times. Each entry (or 'dive') involved an average of three workers, thus equaling approximately 1,300 individual confined -space entries. Over the course of the entire deactivation and demolition period, there were no recordable injuries and only one minor reportable skin contamination. The 241-Z D&D Project was decommissioned under the provisions of the 'Hanford Federal Facility Agreement and Consent Order' (the Tri-Party Agreement or TPA), the 'Resource Conservation and Recovery Act of 1976' (RCRA), and the 'Comprehensive Environmental Response, Compensation, and Liability Act of 1980' (CERCLA). The project completed TPA Milestone M-083-032 to 'Complete those activities required by the 241-Z Treatment and Storage Unit's RCRA Closure Plan' four years and seven months ahead of this legally enforceable milestone. In addition, the project completed TPA Milestone M-083-042 to 'Complete transition and dismantlement of the 241-2 Waste Treatment Facility' four years and four months ahead of schedule. The project used an innovative approach in developing the project-specific RCRA closure plan to assure clear integration between the 241-Z RCRA closure activities and ongoing and future CERCLA actions at PFP. This approach provided a regulatory mechanism within the RCRA closure plan to place segments of the closure that were not practical to address at this time into future actions under CERCLA. Lessons learned from th is approach can be applied to other closure projects within the DOE Complex to control scope creep and mitigate risk. A paper on this topic, entitled 'Integration of the 241-Z Building D and D Under CERCLA with RCRA Closure at the PFP', was presented at the 2007 Waste Management Conference in Tucson, Arizona. In addition, techniques developed by the 241-Z D&D Project to control airborne contamination, clean the interior of the waste tanks, don and doff protective equipment, size-reduce plutonium-contaminated process piping, and mitigate thermal stress for the workers can be applied to other cleanup activities. The project-management team developed a strategy utilizing early characterization, targeted cleanup, and close coordination with PFP Criticality Engineering to significantly streamline the waste- handling costs associated with the project . The project schedule was structured to support an early transition to a criticality 'incredible' status for the 241-Z Facility. The cleanup work was sequenced and coordinated with project-specific criticality analysis to allow the fissile material waste being generated to be managed in a bulk fashion, instead of individual waste packages. This approach negated the need for real-time assay of individ

JOHNSTON GA

2008-01-15T23:59:59.000Z

237

Compatibility of lead-free solders with lead containing surface finishes as a reliability issue in electronic assemblies  

SciTech Connect (OSTI)

Enhanced performance goals and environmental restrictions have heightened the consideration for use of alternative solders as replacements for the traditional tin-lead (Sn-Pb) eutectic and near-eutectic alloys. However, the implementation of non-Pb bearing surface finishes may lag behind solder alloy development. A study was performed which examined the effect(s) of Pb contamination on the performance of Sn-Ag-Bi and Sn-Ag-Cu-Sb lead-free solders by the controlled addition of 63Sn-37Pb solder at levels of 0.5 {minus} 8.0 wt.%. Thermal analysis and ring-in-plug shear strength studies were conducted on bulk solder properties. Circuit board prototype studies centered on the performance of 20I/O SOIC gull wing joints. Both alloys exhibited declines in their melting temperatures with greater Sn-Pb additions. The ring-in-plug shear strength of the Sn-Ag-Cu-Sb solder increased slightly with Sn-Pb levels while the Sn-Ag-Bi alloy experienced a strength loss. The mechanical behavior of the SOIC (Small Outline Integrated Circuit) Sn-Ag-Bi solder joints reproduced the strength levels were insensitive to 10,106 thermal cycles. The Sn-Ag-Cu-Sb solder showed a slight decrease in the gull wing joint strengths that was sensitive to the Pb content of the surface finish.

Vianco, P.; Rejent, J. [Sandia National Labs., Albuquerque, NM (United States); Artaki, I.; Ray, U.; Finley, D.; Jackson, A. [AT and T Bell Labs., Princeton, NJ (United States)

1996-03-01T23:59:59.000Z

238

Fiber optic D dimer biosensor  

DOE Patents [OSTI]

A fiber optic sensor for D dimer (a fibrinolytic product) can be used in vivo (e.g., in catheter-based procedures) for the diagnosis and treatment of stroke-related conditions in humans. Stroke is the third leading cause of death in the United States. It has been estimated that strokes and stroke-related disorders cost Americans between $15-30 billion annually. Relatively recently, new medical procedures have been developed for the treatment of stroke. These endovascular procedures rely upon the use of microcatheters. These procedures could be facilitated with this sensor for D dimer integrated with a microcatheter for the diagnosis of clot type, and as an indicator of the effectiveness, or end-point of thrombolytic therapy.

Glass, Robert S. (Livermore, CA); Grant, Sheila A. (Pleasanton, CA)

1999-01-01T23:59:59.000Z

239

Fiber optic D dimer biosensor  

DOE Patents [OSTI]

A fiber optic sensor for D dimer (a fibrinolytic product) can be used in vivo (e.g., in catheter-based procedures) for the diagnosis and treatment of stroke-related conditions in humans. Stroke is the third leading cause of death in the United States. It has been estimated that strokes and stroke-related disorders cost Americans between $15-30 billion annually. Relatively recently, new medical procedures have been developed for the treatment of stroke. These endovascular procedures rely upon the use of microcatheters. These procedures could be facilitated with this sensor for D dimer integrated with a microcatheter for the diagnosis of clot type, and as an indicator of the effectiveness, or end-point of thrombolytic therapy. 4 figs.

Glass, R.S.; Grant, S.A.

1999-08-17T23:59:59.000Z

240

2 micron femtosecond fiber laser  

DOE Patents [OSTI]

Methods and systems for generating femtosecond fiber laser pulses are disclose, including generating a signal laser pulse from a seed laser oscillator; using a first amplifier stage comprising an input and an output, wherein the signal laser pulse is coupled into the input of the first stage amplifier and the output of the first amplifier stage emits an amplified and stretched signal laser pulse; using an amplifier chain comprising an input and an output, wherein the amplified and stretched signal laser pulse from the output of the first amplifier stage is coupled into the input of the amplifier chain and the output of the amplifier chain emits a further amplified, stretched signal laser pulse. Other embodiments are described and claimed.

Liu, Jian; Wan, Peng; Yang, Lihmei

2014-07-29T23:59:59.000Z

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Effects of hadron irradiation on scintillating fibers  

SciTech Connect (OSTI)

Trackers based on scintillating-fiber technology are being considered by the Solenoidal Detector Collaboration at SSC and the D[phi] collaboration at Fermilab. An important issue is the effect of the radiation existing in the detector cores on fiber properties. Most studies of radiation damage in scintillators have irradiated small bulk samples rather than fibers, and have used X-rays, [sup 60]Co gammas, or electron beams, often at accelerated rates. The authors have irradiated some 600 fibers in the Fermilab Tevatron C[phi] area, thereby obtaining a hadronic irradiation at realistic rates. Four-meter-long samples of ten Bicron polystyrene-based fiber types, maintained in air, dry nitrogen, argon, and vacuum atmospheres within stainless-steel tubes, were irradiated for seven weeks at various distances from the accelerator beam pipes. Maximum doses, measured by thermoluminescence detectors, were about 80 Krad. Fiber properties, particularly light yield and attenuation length, have been measured over a one-year period. A description of the work together with the results is presented. At the doses achieved, corresponding to a few years of actual fiber-tracking detector operation, little degradation is observed. In addition, recovery after several days' exposure to air has been noted. Properties of unirradiated samples kept in darkness show no changes after one year.

Atac, M. (Univ. of California, Los Angeles, CA (United States) Fermi National Accelerator Lab., Batavia, IL (United States)); Buchanan, C.; Chrisman, D.; Cline, D.; Kolonko, J.; Kubic, J.; Park, J. (Univ. of California, Los Angeles, CA (United States)); Baumbaugh, A.; Binkley, M.; Bross, A.D.; Finley, D.; Elias, J.; Foster, G.W.; Kephart, R.; Kephart, R.; Kim, C.; Park, H.; Pla-Dalmau, A.; Rivetta, C.; Tkaczyk, S.; Wagner, R. (Fermi National Accelerator Lab., Batavia, IL (United States)); Chung, M.; Goldberg, H.; Jeskik, R.; Margulies, S.; Mendez, H.; Solomon, J.; Vaca, F. (Univ. of Illinois, Chicago, IL (United States)); Kelley, C. (Massachusetts College of Pharmacy and Allied Health Sciences, Boston, MA (United States)); Baumbaugh, B.; Bishop, J.; Biswas, N.; Cason, N.; Jacques, J.; Kehoe, R.; Kelly, M.; Kenney, V.; LoSecco, J.; Ruchti, R.; Shephard, W.; Warchol, J.; Wayne, M.; Marchant, J.; Mountain, R.J. (Univ. of Notre Dame, IN (United States)); Davis, D.; Vandergriff, D. (O

1993-08-01T23:59:59.000Z

242

Communication Electric polarization in carbon fiber-reinforced cement  

E-Print Network [OSTI]

Communication Electric polarization in carbon fiber-reinforced cement Sihai Wen, D.D.L. Chung Abstract Electric polarization induced an increase of the measured electrical resistivity of carbon fiber of the cement paste through the use of carbon fibers that were more crystalline, the increase of the fiber

Chung, Deborah D.L.

243

Demonstrating Innovative Low-Cost Carbon Fiber for Energy  

E-Print Network [OSTI]

Demonstrating Innovative Low-Cost Carbon Fiber for Energy and National Security Applications #12 posttreatment for various resin systems Winding and packaging Carbon fiber is a strong, stiff, lightweight of today's relatively high price. Current methods for manufacturing carbon fiber and carbon-fiber

Pennycook, Steve

244

Compact, stable 1 ghz femtosecond er-doped fiber lasers  

E-Print Network [OSTI]

We demonstrate a high-repetition-rate soliton fiber laser that is based on highly-doped anomalously-dispersive erbium-doped fiber. By splicing an 11-mm single mode fiber to the erbium-doped fiber, thermal damage of the ...

Byun, Hyunil

245

Microbend fiber-optic chemical sensor  

DOE Patents [OSTI]

A microbend fiber-optic chemical sensor for detecting chemicals in a sample, and a method for its use, is disclosed. The sensor comprises at least one optical fiber having a microbend section (a section of small undulations in its axis), for transmitting and receiving light. In transmission, light guided through the microbend section scatters out of the fiber core and interacts, either directly or indirectly, with the chemical in the sample, inducing fluorescence radiation. Fluorescence radiation is scattered back into the microbend section and returned to an optical detector for determining characteristics of the fluorescence radiation quantifying the presence of a specific chemical.

Weiss, Jonathan D. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

246

Oxidation induced stress-rupture of fiber bundles  

SciTech Connect (OSTI)

The effect of oxidation on the stress-rupture behavior of fiber bundles was modeled. It is shown that oxidation-induced fiber strength degradation results in the delayed failure of the associated fiber bundle and that the fiber bundle strength decreases with time as t{sup {minus}1/4}. It is also shown that the temperature dependence of the bundle loss of strength reflects the thermal dependence of the mechanism controlling the oxidation of the fibers. The effect of gauge length on the fiber bundle strength was also analyzed. Numerical examples are presented for the special case of Nicalon{trademark} fibers.

Lara-Curzio, E.

1997-03-01T23:59:59.000Z

247

Introduction The Fiber-Lite MI-150 is a 150 Watt quartz halogen fiber optic illuminator designed for general microscopy  

E-Print Network [OSTI]

Introduction ® The Fiber-Lite MI-150 is a 150 Watt quartz halogen fiber optic illuminator designed for general microscopy use. When used with specialty fiber optic cables the MI-150 illuminator can also Illuminator from the carton and retain the manual and any additional documents. ! Remove the fiber optic cable

Kleinfeld, David

248

The effect of second phase particles in the fiber/matrix interfacial strength of carbon fiber reinforced thermoset composites  

E-Print Network [OSTI]

to the failure of the single fiber test specimen prior to saturation in the fiber fragmentation process. The microindentation tests were also unsuccessful due to fracture in the carbon fiber prior to interfacial debond. The fiber push-out test results were twice...

Lu, Chung-Yuan

1996-01-01T23:59:59.000Z

249

PROJECT REPORT COUPLING OF LIGHT THROUGH FIBER  

E-Print Network [OSTI]

1 PROJECT REPORT COUPLING OF LIGHT THROUGH FIBER PHY 564 SUBMITTED BY: GAGANDEEP KAUR (952549116 size simplifies connections and also allows the use of lower-cost electronics such as light

La Rosa, Andres H.

250

Optoelectronic fiber webs for imaging applications  

E-Print Network [OSTI]

We demonstrate the use of novel visible and infrared light-sensitive optoelectronic fiber in the development of large scale photodector arrays. Unlike conventional point photodetectors these one-dimensional linear photodectors ...

Arnold, Jerimy Reeves

2005-01-01T23:59:59.000Z

251

Structural retrofitting using fiber reinforced polymers  

E-Print Network [OSTI]

Over the past decades, fiber reinforced polymers (FRP) have been widely used in the aeronautical and naval industries. Being more costly than conventional Civil Engineering materials such as steel or concrete, they have ...

Dumas, Pierre, M. Eng. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

252

Fiber coupled optical spark delivery system  

DOE Patents [OSTI]

A spark delivery system for generating a spark using a laser beam is provided, the spark delivery system including a laser light source and a laser delivery assembly. The laser delivery assembly includes a hollow fiber and a launch assembly comprising launch focusing optics to input the laser beam in the hollow fiber. In addition, the laser delivery assembly includes exit focusing optics that demagnify an exit beam of laser light from the hollow fiber, thereby increasing the intensity of the laser beam and creating a spark. In accordance with embodiments of the present invention, the assembly may be used to create a spark in a combustion engine. In accordance with other embodiments of the present invention, a method of using the spark delivery system is provided. In addition, a method of choosing an appropriate fiber for creating a spark using a laser beam is also presented.

Yalin, Azer (Fort Collins, CO); Willson, Bryan (Fort Collins, CO); Defoort, Morgan (Fort Collins, CO)

2008-08-12T23:59:59.000Z

253

Fiber laser coupled optical spark delivery system  

DOE Patents [OSTI]

A spark delivery system for generating a spark using a laser beam is provided, and includes a laser light source and a laser delivery assembly. The laser delivery assembly includes a hollow fiber and a launch assembly comprising launch focusing optics to input the laser beam in the hollow fiber. The laser delivery assembly further includes exit focusing optics that demagnify an exit beam of laser light from the hollow fiber, thereby increasing the intensity of the laser beam and creating a spark. Other embodiments use a fiber laser to generate a spark. Embodiments of the present invention may be used to create a spark in an engine. Yet other embodiments include collecting light from the spark or a flame resulting from the spark and conveying the light for diagnostics. Methods of using the spark delivery systems and diagnostic systems are provided.

Yalin, Azer (Fort Collins, CO); Willson, Bryan (Fort Collins, CO); Defoort, Morgan (Fort Collins, CO); Joshi, Sachin (Fort Collins, CO); Reynolds, Adam (Fort Collins, CO)

2008-03-04T23:59:59.000Z

254

Lower Cost, Higher Performance Carbon Fiber  

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

Strength; Fiber Format & Manufacturing Methods 1-10 M lbsyr 100M - 1B lbsyr Oil & Gas Deep Water Production Enabler Pipes, Drill Shafts, Off-Shore Structures Low Mass, High...

255

Fiber optic detector for immuno-testing  

DOE Patents [OSTI]

A portable fiber optic detector that senses the presence of specific target chemicals in air or a gas by exchanging the target chemical for a fluoroescently-tagged antigen that is bound to an antibody which is in turn attached to an optical fiber. Replacing the fluorescently-tagged antigen reduces the fluorescence so that a photon sensing detector records the reduced light level and activates an appropriate alarm or indicator.

Partin, Judy K. (Idaho Falls, ID); Ward, Thomas E. (Idaho Falls, ID); Grey, Alan E. (Idaho Falls, ID)

1992-01-01T23:59:59.000Z

256

Fiber optics welder having movable aligning mirror  

DOE Patents [OSTI]

A system for welding fiber optic waveguides together. The ends of the two fibers to be joined together are accurately, collinearly aligned in a vertical orientation and subjected to a controlled, diffuse arc to effect welding and thermal conditioning. A front-surfaced mirror mounted at a 45.degree. angle to the optical axis of a stereomicroscope mounted for viewing the junction of the ends provides two orthogonal views of the interface during the alignment operation.

Higgins, Robert W. (Los Alamos, NM); Robichaud, Roger E. (Jemez Springs, NM)

1981-01-01T23:59:59.000Z

257

Indigestible fiber components as possible internal markers  

E-Print Network [OSTI]

INDIGESTIBLE FIBER COMPONENTS AS POSSIBLE INZERNAL MARKERS A Thesis by BERNARD FREDERICK JACOBS Submitted to the Graduate College of Texas AQf University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August... 1975 Major Subject: Animal Nutrition INDIGESTIBLE FIBER COMPONENTS AS POSSIBLE INTERNAL MARKERS A Thesis by BERNARD FREDERICK JACOBS Approved as to style and content by: !, /, (Chairman of Committee) (Head of Depar ent) (Member) (Member...

Jacobs, Bernard Frederick

1975-01-01T23:59:59.000Z

258

Fiber optic probe for light scattering measurements  

DOE Patents [OSTI]

A fiber optic probe and a method for using the probe for light scattering analyses of a sample. The probe includes a probe body with an inlet for admitting a sample into an interior sample chamber, a first optical fiber for transmitting light from a source into the chamber, and a second optical fiber for transmitting light to a detector such as a spectrophotometer. The interior surface of the probe carries a coating that substantially prevents non-scattered light from reaching the second fiber. The probe is placed in a region where the presence and concentration of an analyte of interest are to be detected, and a sample is admitted into the chamber. Exciting light is transmitted into the sample chamber by the first fiber, where the light interacts with the sample to produce Raman-scattered light. At least some of the Raman-scattered light is received by the second fiber and transmitted to the detector for analysis. Two Raman spectra are measured, at different pressures. The first spectrum is subtracted from the second to remove background effects, and the resulting sample Raman spectrum is compared to a set of stored library spectra to determine the presence and concentration of the analyte.

Nave, Stanley E. (Evans, GA); Livingston, Ronald R. (Aiken, SC); Prather, William S. (Augusta, GA)

1995-01-01T23:59:59.000Z

259

Fiber optic probe for light scattering measurements  

DOE Patents [OSTI]

This invention is comprised of a fiber optic probe and a method for using the probe for light scattering analyses of a sample. The probe includes a probe body with an inlet for admitting a sample into an interior sample chamber, a first optical fiber for transmitting light from a source into the chamber, and a second optical fiber for transmitting light to a detector such as a spectrophotometer. The interior surface of the probe carries a coating that substantially prevents non-scattered light from reaching the second fiber. The probe is placed in a region where the presence and concentration of an analyte of interest are to be detected, and a sample is admitted into the chamber. Exciting light is transmitted into the sample chamber by the first fiber, where the light interacts with the sample to produce Raman-scattered light. At least some of the Raman- scattered light is received by the second fiber and transmitted to the detector for analysis. Two Raman spectra are measured, at different pressures. The first spectrum is subtracted from the second to remove background effects, and the resulting sample Raman spectrum is compared to a set of stored library spectra to determine the presence and concentration of the analyte.

Nave, S.E.; Livingston, R.R.; Prather, W.S.

1993-01-01T23:59:59.000Z

260

Drying and curing of stains and lacquers used in furniture finishing 1 DRYING AND CURING OF STAINS AND LACQUERS USED IN  

E-Print Network [OSTI]

Nexus engaged a consultant to design a semi-automated finishing line, so as to remove inefficiencies. In cold or humid weather white milky patches may appear in the surface fin- ish. This is known as blooming-spray booth which consists of an open area of the factory backed by a wall of filters; fans behind thi

Stokes, Yvonne

Note: This page contains sample records for the topic "finishing fiber yarn" 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

PanFunPro: Bacterial Pan-Genome Analysis Based on the Functional Profiles (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

ScienceCinema (OSTI)

Julien Tremblay from DOE JGI presents "Evaluation of Multiplexed 16S rRNA Microbial Population Surveys Using Illumina MiSeq Platorm" at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

Lukjancenko, Oksana [Technical University of Denmark

2013-01-25T23:59:59.000Z

262

Faculty of Law Number of students who has finished (with a degree) and early leavers (excluding transferred students) by AY (As of May 1, 2012)  

E-Print Network [OSTI]

Holdover H OthersI) Total + early admission Total GraduatesC) over-term within designated term Rate outside school Reasons to leaveF) Leaving RateG) Holdover H within designated term over-term GraduatesCFaculty of Law Number of students who has finished (with a degree) and early leavers (excluding

Banbara, Mutsunori

263

The effect of irregular fiber distribution and error in assumed transverse fiber CTE on thermally induced fiber/matrix interfacial stresses  

E-Print Network [OSTI]

Thermally induced interfacial stress states between fiber and matrix at cryogenic temperature were studied using three-dimensional finite element based micromechanics. Mismatch of the coefficient of thermal expansion between fiber and matrix...

Zu, Seung-Don

2006-08-16T23:59:59.000Z

264

E-Print Network 3.0 - association fiber pathways Sample Search...  

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

fibers (c), mixed corticothalamic and longitudinal fibers (d), and the correct recovery of single... association fibers; (d),(h) mixed ... Source: Thompson, Paul -...

265

FIBER OPTIC SENSING OF A CARBON FIBER PRESfRESSED CONCRETE HIGHWAY BRIDGE  

E-Print Network [OSTI]

composite material replacementsfor steel. These carbon fiber reinforced polymers are practically immune of the civil infrastructure [Dunker and Rabbat 1993]. Carbon fiber based composite materials are practically to corrosion. Since composite materials are unproven in their substitution for steel in concrete structures

266

Optical fibers go nano The manufacture of nanowires from optical fibers provides the longest, most uniform  

E-Print Network [OSTI]

Optical fibers go nano The manufacture of nanowires from optical fibers provides the longest, most uniform and robust nanowires. Most important, the low optical loss associated to small surface roughness and high homogeneity allows the use of nanowires for optical applications and opens the way to a host

267

Effect of Fiber Orientation and Ply Mix on Fiber Reinforced Polymer-Confined Concrete  

E-Print Network [OSTI]

concrete by testing under uniaxial compression a designed array of plain concrete cylinders wrappedEffect of Fiber Orientation and Ply Mix on Fiber Reinforced Polymer-Confined Concrete Ching Au, A concrete lateral strain while the kink stress was found to upshift with increasing jacket stiffness

Entekhabi, Dara

268

Activated carbon fibers and engineered forms from renewable resources  

DOE Patents [OSTI]

A method of producing activated carbon fibers (ACFs) includes the steps of providing a natural carbonaceous precursor fiber material, blending the carbonaceous precursor material with a chemical activation agent to form chemical agent-impregnated precursor fibers, spinning the chemical agent-impregnated precursor material into fibers, and thermally treating the chemical agent-impregnated precursor fibers. The carbonaceous precursor material is both carbonized and activated to form ACFs in a single step. The method produces ACFs exclusive of a step to isolate an intermediate carbon fiber.

Baker, Frederick S

2013-02-19T23:59:59.000Z

269

Activated carbon fibers and engineered forms from renewable resources  

DOE Patents [OSTI]

A method of producing activated carbon fibers (ACFs) includes the steps of providing a natural carbonaceous precursor fiber material, blending the carbonaceous precursor material with a chemical activation agent to form chemical agent-impregnated precursor fibers, spinning the chemical agent-impregnated precursor material into fibers, and thermally treating the chemical agent-impregnated precursor fibers. The carbonaceous precursor material is both carbonized and activated to form ACFs in a single step. The method produces ACFs exclusive of a step to isolate an intermediate carbon fiber.

Baker, Frederick S.

2010-06-01T23:59:59.000Z

270

Evaluations of fiber optic sensors for interior applications  

SciTech Connect (OSTI)

This report addresses the testing and evaluation of commercial fiber optic intrusion detection systems in interior applications. The applications include laying optical fiber cable above suspended ceilings to detect removal of ceiling tiles, embedding optical fibers inside a tamper or item monitoring blanket that could be placed over an asset, and installing optical fibers on a door to detect movement or penetration. Detection capability of the fiber optic sensors as well as nuisance and false alarm information were focused on during the evaluation. Fiber optic sensor processing, system components, and system setup are described.

Sandoval, M.W.; Malone, T.P.

1996-02-01T23:59:59.000Z

271

UPTAKE OF RADIONUCLIDE METALS BY SPME FIBERS  

SciTech Connect (OSTI)

The Federal Bureau of Investigation (FBI) Laboratory currently does not have on site facilities for handling radioactive evidentiary materials and there are no established FBI methods or procedures for decontaminating high explosive (HE) and fire debris (FD) evidence while maintaining evidentiary value. One experimental method for the isolation of HE and FD residue involves using solid phase microextraction or SPME fibers to remove residue of interest. Due to their high affinity for organics, SPME fibers should have little affinity for most metals. However, no studies have measured the affinity of radionuclides for SPME fibers. The focus of this research was to examine the affinity of dissolved radionuclide ({sup 239/240}Pu, {sup 238}U, {sup 237}Np, {sup 85}Sr, {sup 133}Ba, {sup 137}Cs, {sup 60}Co and {sup 226}Ra) and stable radionuclide surrogate metals (Sr, Co, Ir, Re, Ni, Ba, Cs, Nb, Zr, Ru, and Nd) for SPME fibers at the exposure conditions that favor the uptake of HE and FD residues. Our results from radiochemical and mass spectrometric analyses indicate these metals have little measurable affinity for these SPME fibers during conditions that are conducive to HE and FD residue uptake with subsequent analysis by liquid or gas phase chromatography with mass spectrometric detection.

Duff, M; S Crump, S; Robert02 Ray, R; Keisha Martin, K; Donna Beals, D

2006-08-28T23:59:59.000Z

272

Concentric core optical fiber with multiple-mode signal transmission  

DOE Patents [OSTI]

A concentric core optical fiber provides for the simultaneous but independent transmission of signals over a single optical fiber. The concentric optical fiber is constructed of a single-mode or multimode inner optical fiber defined by a core and a cladding of a lower index of refraction than the core and an outer optical fiber defined by additional cladding concentrically disposed around the cladding and of an index of refraction lower than the first mentioned cladding whereby the latter functions as the core of the outer optical fiber. By employing such an optical fiber construction with a single-mode inner core or optical fiber, highly sensitive interferometric and stable less sensitive amplitude based sensors can be placed along the same length of a concentric core optical fiber. Also, by employing the concentric core optical fiber secure telecommunications can be achieved via the inner optical fiber since an intrusion of the concentric optical fiber will first cause a variation in the light being transmitted through the outer optical fiber and this variation of light being used to trigger a suitable alarm indicative of the intrusion.

Muhs, Jeffrey D. (Lenoir City, TN)

1997-01-01T23:59:59.000Z

273

Concentric core optical fiber with multiple-mode signal transmission  

DOE Patents [OSTI]

A concentric core optical fiber provides for the simultaneous but independent transmission of signals over a single optical fiber. The concentric optical fiber is constructed of a single-mode or multimode inner optical fiber defined by a core and a cladding of a lower index of refraction than the core and an outer optical fiber defined by additional cladding concentrically disposed around the cladding and of an index of refraction lower than the first mentioned cladding whereby the latter functions as the core of the outer optical fiber. By employing such an optical fiber construction with a single-mode inner core or optical fiber, highly sensitive interferometric and stable less sensitive amplitude based sensors can be placed along the same length of a concentric core optical fiber. Also, by employing the concentric core optical fiber secure telecommunications can be achieved via the inner optical fiber since an intrusion of the concentric optical fiber will first cause a variation in the light being transmitted through the outer optical fiber and this variation of light being used to trigger a suitable alarm indicative of the intrusion. 3 figs.

Muhs, J.D.

1997-05-06T23:59:59.000Z

274

The effect of neutron irradiation on silicon carbide fibers  

SciTech Connect (OSTI)

Nine types of SiC fiber have been exposed to neutron radiation in the Advanced Test Reactor at 250 C for various lengths of time ranging from 83 to 128 days. The effects of these exposures have been initially determined using scanning electron microscopy. The fibers tested were Nicalon{trademark} CG, Tyranno, Hi-Nicalon{trademark}, Dow Corning SiC, Carborundum SiC, Textron SCS-6, polymethysilane (PMS) derived SiC from the University of Michigan, and two types of MER SiC fiber. This covers a range of fibers from widely used commercial fibers to developmental fibers. Consistent with previous radiation experiments, Nicalon fiber was severely degraded by the neutron irradiation. Similarly, Tyranno suffered severe degradation. The more advanced fibers which approach the composition and properties of SiC performed well under irradiation. Of these, the Carborundum SiC fiber appeared to perform the best. The Hi-Nicalon and Dow Corning Fibers exhibited good general stability, but also appear to have some surface roughening. The MER fibers and the Textron SCS-6 fibers both had carbon cores which adversely influenced the overall stability of the fibers.

Newsome, G.A. [Lockheed Martin Corp., Schenectady, NY (United States)

1997-01-01T23:59:59.000Z

275

The effect of processing on strength of Nicalon fibers in Nicalon fiber-SiC matrix composites  

SciTech Connect (OSTI)

Degradation of strength of Nicalon (silicon carbide) fibers during processing of Nicalon fiber-SiC matrix composites was studied. Strength distribution of as-fabricated Nicalon fibers was obtained via bundle tests. Whereas, strengths of fractured fibers in Nicalon fiber-reinforced SiC matrix composite specimens were estimated by measuring fracture mirror radii. Comparison of fracture probability plots indicate significant differences in the behavior of the as-fabricated fibers and those in the composite. Possible causes leading to these differences are discussed.

Singh, D.; Singh, J.P.

1991-12-01T23:59:59.000Z

276

Carbon Fiber Damage in Particle Beam  

E-Print Network [OSTI]

Carbon fibers are commonly used as moving targets in beam wire scanners. The heating of the fiber due to energy loss of the particles travelling through is simulated with Geant4. The heating induced by the beam electromagnetic field is estimated with ANSYS. The heat transfer and sublimation processes are modelled. Due to the model nonlinearity, a numerical approach based on discretization of the wire movement is used to solve it for particular beams. Radiation damage to the fiber is estimated with SRIM. The model is tested with available SPS and LEP data and a dedicated damage test on the SPS beam is performed followed by a post-mortem analysis of the wire remnants. Predictions for the LHC beams are made.

Dehning, B; Kroyer, T; Meyer, M; Sapinski, M

2011-01-01T23:59:59.000Z

277

Interlayer toughening of fiber composite flywheel rotors  

DOE Patents [OSTI]

An interlayer toughening mechanism to mitigate the growth of damage in fiber composite flywheel rotors for long application. The interlayer toughening mechanism may comprise one or more tough layers composed of high-elongation fibers, high-strength fibers arranged in a woven pattern at a range from 0.degree. to 90.degree. to the rotor axis and bound by a ductile matrix material which adheres to and is compatible with the materials used for the bulk of the rotor. The number and spacing of the tough interlayers is a function of the design requirements and expected lifetime of the rotor. The mechanism has particular application in uninterruptable power supplies, electrical power grid reservoirs, and compulsators for electric guns, as well as electromechanical batteries for vehicles.

Groves, Scott E. (Brentwood, CA); Deteresa, Steven J. (Livermore, CA)

1998-01-01T23:59:59.000Z

278

Interlayer toughening of fiber composite flywheel rotors  

DOE Patents [OSTI]

An interlayer toughening mechanism is described to mitigate the growth of damage in fiber composite flywheel rotors for long application. The interlayer toughening mechanism may comprise one or more tough layers composed of high-elongation fibers, high-strength fibers arranged in a woven pattern at a range from 0{degree} to 90{degree} to the rotor axis and bound by a ductile matrix material which adheres to and is compatible with the materials used for the bulk of the rotor. The number and spacing of the tough interlayers is a function of the design requirements and expected lifetime of the rotor. The mechanism has particular application in uninterruptable power supplies, electrical power grid reservoirs, and compulsators for electric guns, as well as electromechanical batteries for vehicles. 2 figs.

Groves, S.E.; Deteresa, S.J.

1998-07-14T23:59:59.000Z

279

Communication Uniaxial compression in carbon fiber-reinforced cement, sensed by  

E-Print Network [OSTI]

-based and unsized, as obtained from Ashland Petroleum (Ashland, KY). The fiber diameter was 15 mm. The nominal fiber

Chung, Deborah D.L.

280

alloy fiber reinforced: Topics by E-print Network  

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

of FRPs Conditioned FRP-RC Beams Using FiberOptic Sensors, Slenderness Efle 3 Carbon Fiber Reinforced Polymer (CFRP) as Reinforcement for Concrete Beam CiteSeer Summary:...

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Optical fiber smart structures applied to secure containers  

SciTech Connect (OSTI)

A prototype secure container was prepared that uses continually monitored optical fiber as the smart structure. A small ({approx}7.6 cm {times} 10.2 cm {times} 12.7 cm), matchbox-shaped container consisting of an inner drawer within an outer shell was fabricated from polymer resin. The optical fiber was sandwiched between additional non-optical, strength-promoting fibers and embedded into the polymer. The additional non-optical fiber provides strength to the container, protects the optical fiber from damage, hides the fiber and acts as a decoy. The optical fiber was wound with a winding density such that a high probability of fiber damage would be expected if the container was penetrated.

Sliva, P.; Gordon, N.R.; Stahl, K.A.; Simmon, K.L.; Anheier, N.C.

1994-07-01T23:59:59.000Z

282

Intrinsic Fabry-Perot optical fiber sensors and their multiplexing  

DOE Patents [OSTI]

An intrinsic Fabry-Perot optical sensor includes a thin film sandwiched between two fiber ends. When light is launched into the fiber, two reflections are generated at the two fiber/thin film interfaces due to a difference in refractive indices between the fibers and the film, giving rise to the sensor output. In another embodiment, a portion of the cladding of a fiber is removed, creating two parallel surfaces. Part of the evanescent fields of light propagating in the fiber is reflected at each of the surfaces, giving rise to the sensor output. In a third embodiment, the refractive index of a small portion of a fiber is changed through exposure to a laser beam or other radiation. Interference between reflections at the ends of the small portion give rise to the sensor output. Multiple sensors along a single fiber are multiplexed using an optical time domain reflectometry method.

Wang, Anbo (Blacksburg, VA)

2007-12-11T23:59:59.000Z

283

Fiber Supercapacitors DOI: 10.1002/anie.201006062  

E-Print Network [OSTI]

Fiber Supercapacitors DOI: 10.1002/anie.201006062 Fiber Supercapacitors Made of Nanowire storage devices such as batteries and supercapacitors need to be explored, but future develop- ment. In recent years, electrochemical supercapacitors have attracted much attention as novel energy

Wang, Zhong L.

284

Natural fiber reinforced aerated concrete : an experimental investigation  

E-Print Network [OSTI]

The purpose of this study is to compare existing research with aerated concrete and fiber reinforcement to original experiments completed investigating the benefits of adding natural fiber tensile reinforcement to aerated ...

Garbis, Leonidia Maria

2013-01-01T23:59:59.000Z

285

SABIC's Carbon Fiber-Reinforced Material used to Produce the...  

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

SABIC's Carbon Fiber-Reinforced Material used to Produce the World's First 3D-Printed Vehicle at IMTS 2014 SABIC's Carbon Fiber-Reinforced Material used to Produce the World's...

286

Fatigue Enhancement of a Carbon Fiber Reinforced Nanocomposite  

E-Print Network [OSTI]

The primary objective of the present investigation is to study the fatigue characteristics of a woven carbon fiber reinforced polymer which has been modified with either amine or fluorine functionalized carbon nanotubes on the fiber-matrix interface...

Wilkerson, Justin W.

2008-08-19T23:59:59.000Z

287

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

E-Print Network [OSTI]

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

288

Distributed fiber optic intrusion sensor system for monitoring long perimeters  

E-Print Network [OSTI]

A distributed sensor using an optical fiber for detecting and locating intruders over long perimeters (>10 km) is described. Phase changes resulting from either the pressure of the intruder on the ground immediately above the buried fiber or from...

Juarez, Juan C.

2009-06-02T23:59:59.000Z

289

advanced dti fiber: Topics by E-print Network  

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

L, Baley C. Influence of the sampling area of the stem on the mechanical properties of hemp fibers Paris-Sud XI, Universit de 27 Fiber Optic Sensor Interrogation Advancements...

290

Characterization by mercury porosimetry of nonwoven fiber media with deformation  

E-Print Network [OSTI]

The porosity and pore diameter distribution are important characteristics of nonwoven fiber media. With the advent of electrospinning, the production of mats of nonwoven fibrous materials with fiber diameters in the 0.1-10 ...

Rutledge, Gregory C.

291

Indentation experiments on silica optical fibers Bochien Lin  

E-Print Network [OSTI]

fibers, the intrinsic strength seems close to "perfect" 1 Currently, the standard subcritical crack water, fibers exhibit a lower value of n at low applied stress/long time to failure which shows

Matthewson, M. John

292

Effects of fiber direction on heat conduction in unidirectionally aligned fiber composites  

E-Print Network [OSTI]

Composites, " Journal of Applied Mechanics, Vol. 46, pp. 563-567. 44 APPENDIX A NOMENCI ATURE 2G A A d If k k?k, Iy kf km k?k, k? k?, y, k? kgs~ k~v~ kss i, m) B qs 9cai~ q~s S T W s&p~s /f 'y lF V Vf im r fiber spacing... of MASTER OF SCIENCE December 1987 Major Subject: Mechanical Engineering EFFECTS OF FIBER DIRECTION ON HEAT CONDUCTION IN UNIDIRECTIONALLY ALIGNED FIBER COMPOSITES A Thesis CLARK REAGAN HAVIS Approved as to style and content by: G. P. Peterson...

Havis, Clark Reagan

1987-01-01T23:59:59.000Z

293

Development of an alternating magnetic-field-assisted finishing process for microelectromechanical systems micropore x-ray optics  

SciTech Connect (OSTI)

X-ray astronomy research is often limited by the size, weight, complexity, and cost of functioning x-ray optics. Micropore optics promises an economical alternative to traditional (e.g., glass or foil) x-ray optics; however, many manufacturing difficulties prevent micropore optics from being a viable solution. Ezoe et al. introduced microelectromechanical systems (MEMS) micropore optics having curvilinear micropores in 2008. Made by either deep reactive ion etching or x-ray lithography, electroforming, and molding (LIGA), MEMS micropore optics suffer from high micropore sidewall roughness (10-30nmrms) which, by current standards, cannot be improved. In this research, a new alternating magnetic-field-assisted finishing process was developed using a mixture of ferrofluid and microscale abrasive slurry. A machine was built, and a set of working process parameters including alternating frequency, abrasive size, and polishing time was selected. A polishing experiment on a LIGA-fabricated MEMS micropore optic was performed, and a change in micropore sidewall roughness of 9.3{+-}2.5nmrms to 5.7{+-}0.7nmrms was measured. An improvement in x-ray reflectance was also seen. This research shows the feasibility and confirms the effects of this new polishing process on MEMS micropore optics.

Riveros, Raul E.; Yamaguchi, Hitomi; Mitsuishi, Ikuyuki; Takagi, Utako; Ezoe, Yuichiro; Kato, Fumiki; Sugiyama, Susumu; Yamasaki, Noriko; Mitsuda, Kazuhisa

2010-06-20T23:59:59.000Z

294

Fiber optically isolated and remotely stabilized data transmission system  

DOE Patents [OSTI]

A fiber optically isolated and remotely stabilized data transmission systems described wherein optical data may be transmitted over an optical data fiber from a remote source which includes a data transmitter and a power supply at the remote source. The transmitter may be remotely calibrated and stabilized via an optical control fiber, and the power source may be remotely cycled between duty and standby modes via an optical control fiber. 3 figs.

Nelson, M.A.

1992-11-10T23:59:59.000Z

295

Manufacture of thermoelectric generator structures by fiber drawing  

DOE Patents [OSTI]

Methods of manufacturing a thermoelectric generator via fiber drawing and corresponding or associated thermoelectric generator devices are provided.

McIntyre, Timothy J; Simpson, John T; West, David L

2014-11-18T23:59:59.000Z

296

Optimal Design Refrigeration System for a Mucilage Glue Fiber Factory  

E-Print Network [OSTI]

ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency Vol.IV-1-4 Optimal Design Refrigeration System for a Mucilage Glue Fiber Factory Chaoyi Tan Jianlong Liu Fennan Tang Yang Liu Hunan University of Technology... fiber ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency Vol.IV-1-4 2. REFRIGERATION SYSTEM SUPERIOR DESIGN PROPOSAL IN MUCILAGE GLUE FIBER FACTORY 2.1 Refrigeration system superior design proposal in mucilage glue fiber factory...

Tan, C.; Liu, J.; Tang, F.; Liu, Y.

2006-01-01T23:59:59.000Z

297

Constitutive Modeling of Fiber Composites with a Soft Hyperelastic Matrix  

E-Print Network [OSTI]

of unidirectional carbon fiber composites with a silicone matrix, loaded transversally to the fibers study uses a plane-strain finite element continuum model of the composite material in which the fiber (Campbell et al., 2005; Barrett et al., 2006). These composite materials are often described as memory

Pellegrino, Sergio

298

A phase-stabilized carbon nanotube fiber laser frequency comb  

E-Print Network [OSTI]

error on the carrier envelope offset frequency of 0.35 radians. The carbon nanotube fiber laser combA phase-stabilized carbon nanotube fiber laser frequency comb Jinkang Lim1 , Kevin Knabe1 , Karl A by a 167 MHz repetition frequency erbium-doped fiber ring laser using a carbon nanotube saturable absorber

Washburn, Brian

299

Designed amyloid fibers as materials for selective carbon dioxide capture  

E-Print Network [OSTI]

Designed amyloid fibers as materials for selective carbon dioxide capture Dan Lia,b,c,1 , Hiroyasu demonstrate that amyloids, self-assembling protein fibers, are effective for selective carbon dioxide capture. Solid-state NMR proves that amyloid fibers containing alkylamine groups reversibly bind carbon dioxide

300

CURE MONITORING AND SHM OF CARBON FIBER REINFORCED POLYMER  

E-Print Network [OSTI]

CURE MONITORING AND SHM OF CARBON FIBER REINFORCED POLYMER PART I : IMPEDANCE ANALYSIS-performance composite materials based on carbon fiber are increasingly used in critical security areas (aeronautics contains a conductor part (carbon fiber) and an insulator part (resin), a model of electrical conduction

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Hybrid carbon fiber composite lattice truss structures T. George a,  

E-Print Network [OSTI]

Hybrid carbon fiber composite lattice truss structures T. George a, , V.S. Deshpande b , H June 2014 Accepted 14 June 2014 Available online 22 June 2014 Keywords: A. Carbon fiber A. Polymer­matrix composites (PMCs) D. Mechanical testing a b s t r a c t Carbon fiber reinforced polymer (CFRP) composite

Wadley, Haydn

302

Polymer Communication Fibers from polypropylene/nano carbon ber composites  

E-Print Network [OSTI]

Polymer Communication Fibers from polypropylene/nano carbon ®ber composites Satish Kumara,*, Harit Doshia , Mohan Srinivasaraoa , Jung O. Parka , David A. Schiraldib a School of Textile and Fiber in revised form 26 October 2001; accepted 31 October 2001 Abstract Fibers from polypropylene

Srinivasarao, Mohan

303

ON THE GAGE FACTOR FOR OPTICAL FIBER GRATING STRAIN GAGES  

E-Print Network [OSTI]

of grating and fiber types. KEY WORDS: Fiber-Optic Gratings, Fiber-Optic Sensors, Strain Gage Factor 1 theoretical background. Then, in Section 3, we discuss measurement methods followed by the experimental tests and results in Section 4, before concluding in Section 5. 2. THEORETICAL BACKGROUND Consider an FBG fabricated

Park, Yong-Lae

304

HANSEN SOLUBILITY PARAMETERS FOR A CARBON FIBER/EPOXY COMPOSITE  

E-Print Network [OSTI]

HANSEN SOLUBILITY PARAMETERS FOR A CARBON FIBER/EPOXY COMPOSITE Hélène Launay* , Charles Medom demonstrated as appropriate for the study of interactions between the materials in composite carbon fiber. INTRODUCTION Fiber-reinforced composites are used in a wide range of applications where high stiffness

305

STABILITY PROPERTIES OF LIGHT PROPAGATING IN FIBER OPTICS  

E-Print Network [OSTI]

STABILITY PROPERTIES OF LIGHT PROPAGATING IN FIBER OPTICS ST´EPHANE LAFORTUNE Summary The study is crucial in applications such as lasers and optical fibers. In this proposal I will focus on a model of fiber optics: the Manakov system. This system consists of two differential equations, that is two

Kasman, Alex

306

EFFECTS OF FIBER WAVINESS ON COMPOSITES FOR WIND TURBINE BLADES  

E-Print Network [OSTI]

EFFECTS OF FIBER WAVINESS ON COMPOSITES FOR WIND TURBINE BLADES J.F. Mandell D.D. Samborsky and L Composite materials of interest for wind turbine blades use relatively low cost fibers, resins and processes WORDS: Composite Materials, Fiber Waviness, Compressive Strength #12;1. INTRODUCTION Wind turbine blades

307

Novel oxide-oxide fiber reinforced hot gas filter development  

SciTech Connect (OSTI)

The objective of this program is to fabricate and test oxide fiber reinforced composite hot gas filter elements for advanced power generation systems. The level of mechanical durability exhibited by the currently available filters in field tests indicates that more rugged filters are required to meet the demands of large power generation systems. Furthermore, long term corrosion resistance of currently available filters has yet to be demonstrated in PFBC systems. The essential requirements of a composite material designed to meet the program objective for a toughened hot gas filter include the following: Stable continuous fiber; rigid porous matrix; engineered fiber-matrix interface; and cost effectiveness. Based on properties, availability, and cost, Mitsui`s ALMAX alumina fiber and 3M`s NEXTEL 610 alumina fiber were selected as the oxide reinforcement fibers. In order to meet the economic goals of the program it is essential that the cost and amount of continuous fiber be minimized. A four axis filament winder will be used to fabricate filter Preforms in a variety of fiber architectures. Carbon was used as the initial fiber coating because it was known to be resistant to the Processing chemicals. The coating was produced by pyrolysis of the resin based sizings on the continuous fibers. The matrix of the composite filter is comprised of chopped ceramic fiber. Saffil fiber was used for all compositions in this program.

Wagner, R.A.

1995-12-01T23:59:59.000Z

308

Effects of g Radiation on Fiber-Reinforced Polymer Concrete  

E-Print Network [OSTI]

Effects of g Radiation on Fiber-Reinforced Polymer Concrete Gonzalo Marti´nez-Barrera,1,2 Luis F% of nylon fibers. The fiber-containing polymer concretes (PCs) were subjected to 5, 10, 50, and 100 k Engineers INTRODUCTION AND SCOPE It is well known that polymer concrete (PC) is three to five times stronger

North Texas, University of

309

TRANSGENIC COTTON WITH IMPROVED FIBER MICRONAIRE, STRENGTH, AND LENGTH AND  

E-Print Network [OSTI]

483 TRANSGENIC COTTON WITH IMPROVED FIBER MICRONAIRE, STRENGTH, AND LENGTH AND INCREASED FIBER. Keating, N. G. Srinivas, C. Wu and A. S. Holaday Texas Tech University Lubbock, TX G. J. Jividen Cotton Incorporated Raleigh, NC Abstract We set out to use genetic engineering to make cotton crop yield and fiber

Strauss, Richard E.

310

Method for the continuous processing of hermetic fiber optic components and the resultant fiber optic-to-metal components  

DOE Patents [OSTI]

Hermetic fiber optic-to-metal components and method for making hermetic fiber optic-to-metal components by assembling and fixturing elements comprising a metal shell, a glass preform, and a metal-coated fiber optic into desired relative positions and then sealing said fixtured elements preferably using a continuous heating process. The resultant hermetic fiber optic-to-metal components exhibit high hermeticity and durability despite the large differences in thermal coefficients of expansion among the various elements.

Kramer, Daniel P. (Centerville, OH)

1994-08-09T23:59:59.000Z

311

Evaluation of high- and low-protein sorghum grains supplemented with lysine and lysine plus threonine as a feed for finishing swine  

E-Print Network [OSTI]

/or methionine content are below the finishing pigs' requirements for these amino acids. Sorghum grain supplemented with these amino acids, either singularly or in combination, plus needed vitamins and minerals should theoretically provide optimum growth..., there was no significant difference in retained nitrogen. The nutritive value of two sorghum grains containing 7. 9 and 11. 8% protein was compared on the basis of rat growth and amino acid analyses by Waggle eX nf. (1966). The high protein sorghum grain had higher...

Kinslow, William Freddie

1972-01-01T23:59:59.000Z

312

The effects of various levels of coastal bermudagrass and alfalfa hays on feedlot performance, carcass composition and net energy for finishing steers  

E-Print Network [OSTI]

THE EFFECTS OF VARIOUS LEVELS OF COASTAL BERMUDAGRASS AND ALFALFA HAYS ON FEEDLOT PERFORMANCE, CARCASS COMPOSITION AND NET ENERGY FOR FINISHING STEERS A Thesis by WILLIAM EMMETT BROWN, JR. Submitted to the Graduate College of Texas A...&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1978 Major Subject: Animal Science THE EFFECTS OF VARIOUS LEVELS OF COASTAL BERMUDAGRASS AND ALFALFA HAYS ON FEEDLOT PERFORMANCE, CARCASS COMPOSITION...

Brown, William Emmett

1978-01-01T23:59:59.000Z

313

Faculty of Law Number of students who has finished (with a degree) and early leavers (excluding transferred students) by AY (As of May 1, 2011)  

E-Print Network [OSTI]

Faculty of Law Number of students who has finished (with a degree) and early leavers (excluding or less more than 1 year Law 180 227 227 155 65 220 68% 29% 97% 5 2% 0 2 Total 180 227 227 155 65 220 68% 29% 97% 5 2% 0 2 Law 180 184 184 139 37 176 76% 20% 96% 6 3% 2 0 Total 180 184 184 139 37 176 76% 20

Banbara, Mutsunori

314

Analysis of White Matter Fiber Tracts via Fiber Clustering and Parametrization  

E-Print Network [OSTI]

coefficient" (ADC, trace of tensor) and the "fractional anisotropy" (FA, normalized elongation). Previous], scientific visualization [2] and fiber tracking [3,4,5,6,7,8]. Atlas building and comparison of subject

315

Specific Effects of Fiber Size and Fiber Swelling on Biomass Substrate Surface Area and Enzymatic Digestibility  

SciTech Connect (OSTI)

To clarify the specific effect of biomass substrate surface area on its enzymatic digestibility, factors of fiber size reduction and swelling changes were investigated by using poplar substrates with controlled morphological and chemical properties after modified chemical pulping. Results showed that fiber size changes had insignificant influence on enzymatic hydrolysis, although the external surface area increased up to 41% with the reduction of fiber size. Swelling changes caused by increased biomass fiber porosities after PFI refining showed a significant influence on the efficiency of enzymatic hydrolysis. It is also found that chemical properties such as xylan and lignin content can influence the swelling effect. Xylan is confirmed to facilitate substrate hydrolysability by swelling, while lignin restricts swelling effect and thus minimizes the enzyme accessibility to substrates.

Ju, Xiaohui; Grego, Courtnee; Zhang, Xiao

2013-09-01T23:59:59.000Z

316

Single-fiber multi-color pyrometry  

DOE Patents [OSTI]

This invention is a fiber-based multi-color pyrometry set-up for real-time non-contact temperature and emissivity measurement. The system includes a single optical fiber to collect radiation emitted by a target, a reflective rotating chopper to split the collected radiation into two or more paths while modulating the radiation for lock-in amplification (i.e., phase-sensitive detection), at least two detectors possibly of different spectral bandwidths with or without filters to limit the wavelength regions detected and optics to direct and focus the radiation onto the sensitive areas of the detectors. A computer algorithm is used to calculate the true temperature and emissivity of a target based on blackbody calibrations. The system components are enclosed in a light-tight housing, with provision for the fiber to extend outside to collect the radiation. Radiation emitted by the target is transmitted through the fiber to the reflective chopper, which either allows the radiation to pass straight through or reflects the radiation into one or more separate paths. Each path includes a detector with or without filters and corresponding optics to direct and focus the radiation onto the active area of the detector. The signals are recovered using lock-in amplification. Calibration formulas for the signals obtained using a blackbody of known temperature are used to compute the true temperature and emissivity of the target. The temperature range of the pyrometer system is determined by the spectral characteristics of the optical components.

Small IV, Ward; Celliers, Peter

2004-01-27T23:59:59.000Z

317

Single-fiber multi-color pyrometry  

DOE Patents [OSTI]

This invention is a fiber-based multi-color pyrometry set-up for real-time non-contact temperature and emissivity measurement. The system includes a single optical fiber to collect radiation emitted by a target, a reflective rotating chopper to split the collected radiation into two or more paths while modulating the radiation for lock-in amplification (i.e., phase-sensitive detection), at least two detectors possibly of different spectral bandwidths with or without filters to limit the wavelength regions detected and optics to direct and focus the radiation onto the sensitive areas of the detectors. A computer algorithm is used to calculate the true temperature and emissivity of a target based on blackbody calibrations. The system components are enclosed in a light-tight housing, with provision for the fiber to extend outside to collect the radiation. Radiation emitted by the target is transmitted through the fiber to the reflective chopper, which either allows the radiation to pass straight through or reflects the radiation into one or more separate paths. Each path includes a detector with or without filters and corresponding optics to direct and focus the radiation onto the active area of the detector. The signals are recovered using lock-in amplification. Calibration formulas for the signals obtained using a blackbody of known temperature are used to compute the true temperature and emissivity of the target. The temperature range of the pyrometer system is determined by the spectral characteristics of the optical components.

Small, IV, Ward (Livermore, CA); Celliers, Peter (Berkeley, CA)

2000-01-01T23:59:59.000Z

318

Fiber type, meal frequency and colonic cytokinetics  

E-Print Network [OSTI]

The effects of dietary fiber type (cellulose, pectin or oat bran) and meal frequency (gorge or nibble) on colonic short chain fatty acids (SCFAs), in vivo colonic pH and epithelial cell proliferation were examined in male Sprague-Dawley rats...

Zhang, Jianhu

1993-01-01T23:59:59.000Z

319

Method of producing a hybrid matrix fiber composite  

DOE Patents [OSTI]

Hybrid matrix fiber composites having enhanced compressive performance as well as enhanced stiffness, toughness and durability suitable for compression-critical applications. The methods for producing the fiber composites using matrix hybridization. The hybrid matrix fiber composites comprised of two chemically or physically bonded matrix materials, whereas the first matrix materials are used to impregnate multi-filament fibers formed into ribbons and the second matrix material is placed around and between the fiber ribbons that are impregnated with the first matrix material and both matrix materials are cured and solidified.

Deteresa, Steven J. (Livermore, CA); Lyon, Richard E. (Absecon, NJ); Groves, Scott E. (Brentwood, CA)

2006-03-28T23:59:59.000Z

320

Carbon Fiber Production from a Kraft Hardwood Lignin  

SciTech Connect (OSTI)

Lignin is a renewable resource material that is being evaluated for the low cost production of carbon fiber for automotive and other applications. Solvent extraction of a commercial hardwood lignin product yielded a purified lignin free of the contaminants typical of lignins derived from the Kraft chemical pulping of wood. The purified lignin was highly melt-spinnable into fibers, from which carbon fiber was subsequently produced. The lignin has been evaluated in terms of its rheological properties, fiber melt spinning ability, and potential for manufacture of low cost carbon fiber without the need for plasticizing agents or chemical modifications.

Baker, Darren A [ORNL; Gallego, Nidia C [ORNL; Baker, Frederick S [ORNL

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Metal matrix coated fiber composites and the methods of manufacturing such composites  

DOE Patents [OSTI]

A fiber coating which allows ceramic or metal fibers to be wetted by molten metals is disclosed. The coating inhibits degradation of the physical properties caused by chemical reaction between the fiber and the coating itself or between the fiber and the metal matrix. The fiber coating preferably includes at least a wetting layer, and in some applications, a wetting layer and a barrier layer between the fiber and the wetting layer. The wetting layer promotes fiber wetting by the metal matrix. The barrier layer inhibits fiber degradation. The fiber coating permits the fibers to be infiltrated with the metal matrix resulting in composites having unique properties not obtainable in pure materials.

Weeks, Jr., Joseph K. (Salt Lake City, UT); Gensse, Chantal (Salt Lake City, UT)

1993-01-01T23:59:59.000Z

322

Developing Magnetorheological Finishing (MRF) Technology for the Manufacture of Large-Aperture Optics in Megajoule Class Laser Systems  

SciTech Connect (OSTI)

Over the last eight years we have been developing advanced MRF tools and techniques to manufacture meter-scale optics for use in Megajoule class laser systems. These systems call for optics having unique characteristics that can complicate their fabrication using conventional polishing methods. First, exposure to the high-power nanosecond and sub-nanosecond pulsed laser environment in the infrared (>27 J/cm{sup 2} at 1053 nm), visible (>18 J/cm{sup 2} at 527 nm), and ultraviolet (>10 J/cm{sup 2} at 351 nm) demands ultra-precise control of optical figure and finish to avoid intensity modulation and scatter that can result in damage to the optics chain or system hardware. Second, the optics must be super-polished and virtually free of surface and subsurface flaws that can limit optic lifetime through laser-induced damage initiation and growth at the flaw sites, particularly at 351 nm. Lastly, ultra-precise optics for beam conditioning are required to control laser beam quality. These optics contain customized surface topographical structures that cannot be made using traditional fabrication processes. In this review, we will present the development and implementation of large-aperture MRF tools and techniques specifically designed to meet the demanding optical performance challenges required in large-aperture high-power laser systems. In particular, we will discuss the advances made by using MRF technology to expose and remove surface and subsurface flaws in optics during final polishing to yield optics with improve laser damage resistance, the novel application of MRF deterministic polishing to imprint complex topographical information and wavefront correction patterns onto optical surfaces, and our efforts to advance the technology to manufacture large-aperture damage resistant optics.

Menapace, J A

2010-10-27T23:59:59.000Z

323

The Chemical Hazards Assessments Prior to D&D of the Plutonium Finishing Plant Hanford Nuclear Reservation  

SciTech Connect (OSTI)

All Hanford facilities, including the Plutonium Finishing Plant (PFP) were evaluated for chemical hazards in 1997, 1998 and 2000. The hazard evaluation, known as the PFP Facility Vulnerability Assessment (FVA), was prompted when chemicals in Tank A-109 in the Plutonium Reclamation Facility (PRF) exploded in May 1997. Actions were undertaken to eliminate or reduce what were thought to be the worst hazards following that evaluation. In 2001, a new PFP team was organized to review the progress to date in reducing hazards and to reassess hazards that might still remain within the facility. This reassessment continued into 2002 and is referred to as the 2002 PFP Residual Chemical Hazards Reassessment (RCHR). This report explains the results of the 2001/2002 reassessment of the chemical hazards at PFP. This reassessment effort forms the basis of the RCHR. The RCHR relied on previous assessments as the starting point for the 2001/2002 evaluation and used ranking criteria very similar to previous efforts. The RCHR team was composed of professionals representing Industrial Hygiene, Chemical Engineering, Mechanical Engineering, Hazardous Materials Handling Specialists, Solid Waste Management Specialists and Environmental Specialists. All areas of concern that could be accessed were physically examined and photographed where possible. Information from processing records, facility drawings and documents, design engineers, process engineers and work packages were compiled. The PFP vessel inventory was examined and expanded where required. New items listed in the vessel inventory were investigated. All items investigated were ranked using the hazard ranking criteria developed. This information was put on data sheets and compiled in a database.

FITCH, L.R.; HOPKINS, A.M.

2003-01-01T23:59:59.000Z

324

Development of silicon nitride composites with continuous fiber reinforcement  

SciTech Connect (OSTI)

The composites were fabricated using ultrafine Si powders prepared by attritor milling; the powders exhibits full conversion to Si nitride in < 3 h at {le} 1200 C (these conditions reduce degradation of the fibers compared to conventional). Effects of processing conditions on fiber properties and the use of fiber coatings to improve stability during processing as well as change the fiber-matrix interfacial properties were investigated. A duplex carbon-silicon carbide coating, deposited by CVD, reduced fiber degradation in processing, and it modified the fiber-matrix adhesion. Si nitride matrix composites were fabricated using reaction sintering, forming laminates, filament-wound plates, and tubes. In each case, an attritor milled Si powder slurry is infiltrated into ceramic fiber preforms or tows, which are then assembled to form a 3-D structure for reaction sintering. The resulting composites have properties comparable to chemical vapor infiltration densified composites, with reasonable strengths and graceful composite fracture behavior.

Starr, T.L.; Mohr, D.L.; Lackey, W.J.; Hanigofsky, J.A. [Georgia Inst. of Tech., Atlanta, GA (United States). Georgia Technology Research Inst.

1993-10-01T23:59:59.000Z

325

Description Early Finish  

E-Print Network [OSTI]

.00 Level 2 Milestones 1070 Friction Stir-Weld Coil Leads TF Conductors 0 08DEC11 53 05JAN12 B 0 0.00 1150

Princeton Plasma Physics Laboratory

326

Temperature and electrical memory of polymer fibers  

SciTech Connect (OSTI)

We report in this work studies of the shape memory behavior of polymer fibers loaded with carbon nanotubes or graphene flakes. These materials exhibit enhanced shape memory properties with the generation of a giant stress upon shape recovery. In addition, they exhibit a surprising temperature memory with a peak of generated stress at a temperature nearly equal to the temperature of programming. This temperature memory is ascribed to the presence of dynamical heterogeneities and to the intrinsic broadness of the glass transition. We present recent experiments related to observables other than mechanical properties. In particular nanocomposite fibers exhibit variations of electrical conductivity with an accurate memory. Indeed, the rate of conductivity variations during temperature changes reaches a well defined maximum at a temperature equal to the temperature of programming. Such materials are promising for future actuators that couple dimensional changes with sensing electronic functionalities.

Yuan, Jinkai; Zakri, Cécile; Grillard, Fabienne; Neri, Wilfrid; Poulin, Philippe [Centre de Recherche Paul Pascal - CNRS, University of Bordeaux, Avenue Schweitzer, 33600 Pessac (France)

2014-05-15T23:59:59.000Z

327

Photonic bandgap narrowing in conical hollow core Bragg fibers  

SciTech Connect (OSTI)

We report the photonic bandgap engineering of Bragg fibers by controlling the thickness profile of the fiber during the thermal drawing. Conical hollow core Bragg fibers were produced by thermal drawing under a rapidly alternating load, which was applied by introducing steep changes to the fiber drawing speed. In conventional cylindrical Bragg fibers, light is guided by omnidirectional reflections from interior dielectric mirrors with a single quarter wave stack period. In conical fibers, the diameter reduction introduced a gradient of the quarter wave stack period along the length of the fiber. Therefore, the light guided within the fiber encountered slightly smaller dielectric layer thicknesses at each reflection, resulting in a progressive blueshift of the reflectance spectrum. As the reflectance spectrum shifts, longer wavelengths of the initial bandgap cease to be omnidirectionally reflected and exit through the cladding, which narrows the photonic bandgap. A narrow transmission bandwidth is particularly desirable in hollow waveguide mid-infrared sensing schemes, where broadband light is coupled to the fiber and the analyte vapor is introduced into the hollow core to measure infrared absorption. We carried out sensing simulations using the absorption spectrum of isopropyl alcohol vapor to demonstrate the importance of narrow bandgap fibers in chemical sensing applications.

Ozturk, Fahri Emre; Yildirim, Adem; Kanik, Mehmet [UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara (Turkey); Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara (Turkey); Bayindir, Mehmet, E-mail: bayindir@nano.org.tr [UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara (Turkey); Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara (Turkey); Department of Physics, Bilkent University, 06800 Ankara (Turkey)

2014-08-18T23:59:59.000Z

328

Fiber coatings and the fracture behavior of a continuous fiber ceramic composite  

SciTech Connect (OSTI)

Continuous fiber reinforced ceramic composites (CFCC) are being recognized as necessary for high-temperature structural applications. For instance, the applications of SiC/SiC composites in elevated-temperature structures, such as first wall, and high heat flux surfaces in fusion reactors, as well as in combustors and boiler components in power generation systems, have drawn considerable attention. In the present study, Nicalon{sup {reg_sign}} plane-weave fiber reinforced SiC matrix composites have been fabricated by forced chemical vapor infiltration (FCVI) methods. The influence of fiber/matrix interface coating thickness on the fracture behavior of the continuous fiber reinforced SiC composites has been investigated. Experimental results indicate that fiber coating thickness significantly alters the fracture behavior of SiC composites. The fracture strength exhibits a maximum as the coating thickness increases. A mechanistic understanding of the fracture behavior is provided. Furthermore, a theoretical model is formulated to provide a better understanding of the effects of coating thickness on fracture behavior. The predicted fracture behavior was found to be in good agreement with the experimental results.

Miller, J.H.; Lowden, R.A. [Oak Ridge National Lab., TN (United States); Liaw, P.K. [Univ. of Knoxville, TN (United States)

1995-12-31T23:59:59.000Z

329

Growing Crystaline Sapphire Fibers By Laser Heated Pedestal Techiques  

DOE Patents [OSTI]

An improved system and process for growing crystal fibers comprising a means for creating a laser beam having a substantially constant intensity profile through its cross sectional area, means for directing the laser beam at a portion of solid feed material located within a fiber growth chamber to form molten feed material, means to support a seed fiber above the molten feed material, means to translate the seed fiber towards and away from the molten feed material so that the seed fiber can make contact with the molten feed material, fuse to the molten feed material and then be withdrawn away from the molten feed material whereby the molten feed material is drawn off in the form of a crystal fiber. The means for creating a laser beam having a substantially constant intensity profile through its cross sectional area includes transforming a previously generated laser beam having a conventional gaussian intensity profile through its cross sectional area into a laser beam having a substantially constant intensity profile through its cross sectional area by passing the previously generated laser beam through a graded reflectivity mirror. The means for directing the laser beam at a portion of solid feed material is configured to direct the laser beam at a target zone which contains the molten feed material and a portion of crystal fiber drawn off the molten feed material by the seed fiber. The means to support the seed fiber above the molten feed material is positioned at a predetermined height above the molten feed material. This predetermined height provides the seed fiber with sufficient length and sufficient resiliency so that surface tension in the molten feed material can move the seed fiber to the center of the molten feed material irrespective of where the seed fiber makes contact with the molten feed material. The internal atmosphere of the fiber growth chamber is composed substantially of Helium gas.

Phomsakha, Vongvilay (St. Petersburg, FL); Chang, Robert S. F. (Tampa, FL); Djeu, Nicholas I. (Tampa, FL)

1997-03-04T23:59:59.000Z

330

Low-Cost Fiber Optic Pressure Sensor  

DOE Patents [OSTI]

The size and cost of fabricating fiber optic pressure sensors is reduced by fabricating the membrane of the sensor in a non-planar shape. The design of the sensors may be made in such a way that the non-planar membrane becomes a part of an air-tight cavity, so as to make the membrane resilient due to the air-cushion effect of the air-tight cavity. Such non-planar membranes are easier to make and attach.

Sheem, Sang K. (Pleasanton, CA)

2003-07-22T23:59:59.000Z

331

Low-Cost Fiber Optic Pressure Sensor  

DOE Patents [OSTI]

The size and cost of fabricating fiber optic pressure sensors is reduced by fabricating the membrane of the sensor in a non-planar shape. The design of the sensors may be made in such a way that the non-planar membrane becomes a part of an air-tight cavity, so as to make the membrane resilient due to the air-cushion effect of the air-tight cavity. Such non-planar membranes are easier to make and attach.

Sheem, Sang K. (Pleasanton, CA)

2004-05-18T23:59:59.000Z

332

Optical fiber sensors for smart materials characterization  

SciTech Connect (OSTI)

Optical and optical fiber methods may be used to characterize materials and structures. Their advantages for such applications include their immunity to electromagnetic interference, high sensitivity, resolution and dynamic range, and ability to operate in harsh environmental conditions. This paper describes the application of such methods to the characterization of smart materials and structures during their fabrication, in-service lifetime, and damage and degradation.

Claus, R.O. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Electrical Engineering Dept.

1994-12-31T23:59:59.000Z

333

Ternary liquid scintillator for optical fiber applications  

DOE Patents [OSTI]

A multicomponent liquid scintillator solution for use as a radiation-to-light converter in conjunction with a fiber optic transmission system. The scintillator includes a quantity of 5-amino-9-diethylaminobenz (a) phenoxazonium nitrate (Nile Blue Nitrate) as a solute in a fluor solvent such as benzyl alcohol. The use of PPD as an additional solute is also disclosed. The system is controllable by addition of a suitable quenching agent, such as phenol.

Franks, Larry A. (Santa Barbara, CA); Lutz, Stephen S. (Santa Barbara, CA)

1982-01-01T23:59:59.000Z

334

Ammonia fiber explosion (AFEX) treatment of grass  

E-Print Network [OSTI]

solution), high-temperature treatment, and freezing in water suspensions at -75 C (Millett, Baker, and Satter, 1975), Chemical pretreatments include alkali and ammonia swelling, dilute acid extraction, NO with alkali, explosive steam decompression, wet... for ruminants. Ammonia explosion pulping has been investigated as an approach to fiber separation in wood chips (O' Connor, 1971). Recent work on pretreatment techniques includes: pretreatment of cedar with peracetic acid and steam explosion to improve...

Ashok, Ganesh

1991-01-01T23:59:59.000Z

335

Assessment of the Plutonium Finishing Plant Criticality Alarm System U.S. Department of Energy Richland Operations Office  

SciTech Connect (OSTI)

At the request of the Assistant Manager for Safety and Engineering, the U.S. Department of Energy Richland Operations Office (RL) Engineering Support Division, performed an oversight review of the Plutonium Finishing Plant (PFP) nuclear Criticality Alarm System (CAS). The review was conducted to satisfy requirements and agreements associated with Defense Nuclear Facility Safety Board (DNFSB) Recommendation 2000-2, ''Vital Safety Systems.'' The PFP is managed by Fluor Hanford, Inc. for RL. The field assessment and staff interviews were conducted August 12 through August 19,2002. This was a limited scope assessment that consisted of a review of the nuclear CAS operations, maintenance, and compliance with National Consensus Standards Requirements. The main purpose of the assessment was to determine the adequacy of the existing alarm system and its associated infrastructure to support the PFP facility mission through the remaining facility lifetime. The Review Plan was modeled upon Criteria and Review Approach Documents (CRAD) developed for DNFSB Recommendation 2000-2 reviews conducted across the Hanford Site. Concerns regarding component degradation and failure, increasing numbers of occurrence reports associated with the alarm system, and reliability issues were addressed. Additionally, RL performed a review of the engineering aspects of the CAS including the functions of design authorities and aspects of systems engineering. However, the focus of the assessment was on operations, maintenance, and reliability of the CAS, associated procurement practices, adequacy of safety and engineering policies and procedures, safety documentation, and fundamental engineering practices including training, qualification, and systems engineering. This assessment revealed that the PFP CAS and its associated infrastructure, administrative procedures, and conduct of operations are generally effective. There are no imminent criticality safety issues associated with the operation of the existing CAS. The Assessment Team believes that the CAS, as it presently exists at the PFP facility, is adequate to support the remaining mission lifetime of the facility while continuing to ensure personnel safety. This conclusion is dependent upon a continued level of funding adequate to support the required maintenance and occasional system upgrade. Two findings were identified during this assessment. Additionally, the report identified eight observations and two recommendations. The assessment revealed that recent changes to OSR compliance procedures and other documents do not contain the signature of the CSR as required by procedure. Lack of appropriate approval signatures is a noncompliance with site-level procedures.

NIRIDER, L.T.

2002-10-01T23:59:59.000Z

336

CaRbON FibeR Demonstrating Innovative Low-Cost  

E-Print Network [OSTI]

for manufacturing carbon fiber and carbon-fiber-reinforced composite structures tend to be slow and energy intensive the development and growth of existing and new US carbon fiber and composites · Job Growth Seed regionalCaRbON FibeR TeChNOLOGy FaCiLiTy Demonstrating Innovative Low-Cost Carbon Fiber for Energy

Pennycook, Steve

337

12/22/2000 State of Art Fiber Optic 1 UTILITY APPLICATION OF  

E-Print Network [OSTI]

12/22/2000 State of Art Fiber Optic 1 UTILITY APPLICATION OF FIBER OPTIC CABLES George G. Karady Fiber Optic 2 UTILITY APPLICATION OF FIBER OPTIC CABLES Utilities are installing fiber optic cables on high voltage transmission lines. Three basic designs employed are: · 1) OPGW (optical ground wire) · 2

338

An overview of power delivery and laser damage in fibers  

SciTech Connect (OSTI)

Fiber optic delivery systems are an important component of high power laser systems used for applications ranging from laser surgery to industrial cutting and welding. Conventional silica fiber optics may be used to deliver Nd:YAG laser powers in excess of 2,000 W whereas lasers operating beyond 2 {mu}m require non-silica fiber optics. Specifically, IR transmissive fiber optics for Er:YAG (3 {mu}m) or CO{sub 2} (10.6 {mu}m) laser beam delivery require the use of special fiber optics such as sapphire, fluoride or chalcogenide glass, or hollow waveguides. The optical and mechanical properties of these unique guides and their power handling capability are reviewed along with those of silica fibers operating in the UV and near IR wavelength region of the spectrum.

Harrington, J.A. [Rutgers Univ., Piscataway, NJ (United States)

1997-12-01T23:59:59.000Z

339

Progress in the development of scintillating optical fibers  

SciTech Connect (OSTI)

Starting with 1 inch diameter PVT scintillator as a preform, the authors have drawn fibers of several diameters ranging from 1 to 4 mm. These fibers have been coated in line with the draw to form optical fibers. Several cladding materials whose index of refraction ranges from 1.35 to 1.55 have been used. The most successful fiber has been obtained with an extra thick (200 micron) cladding of silicone in combination with a linear draw, as opposed to a spool draw. This fiber is acceptable, but it is extremely fragile and its quality is difficult to control. The authors are currently constructing a 12 channel hodoscope with 1 mm spatial resolution using 4 mm diameter fibers. An account is also given of the progress made in using the Avalanche Photo Diode (APD) operated in the Geiger mode as the photo detector.

Borenstein, S.R.; Strand, R.C.

1983-01-01T23:59:59.000Z

340

Spectrally tailored supercontinuum generation from single-mode-fiber amplifiers  

SciTech Connect (OSTI)

Spectral filtering of an all-normal-dispersion Yb-doped fiber laser was demonstrated effective for broadband supercontinuum generation in the picosecond time region. The picosecond pump pulses were tailored in spectrum with 1 nm band-pass filter installed between two single-mode fiber amplifiers. By tuning the spectral filter around 1028?nm, four-wave mixing was initiated in a photonic crystal fiber spliced with single-mode fiber, as manifested by the simultaneous generation of Stokes wave at 1076?nm and anti-Stokes wave at 984?nm. Four-wave mixing took place in cascade with the influence of stimulated Raman scattering and eventually extended the output spectrum more than 900?nm of 10?dB bandwidth. This technique allows smooth octave supercontinuum generation by using simple single-mode fiber amplifiers rather than complicated multistage large-mode-area fiber amplifiers.

Hao, Qiang; Guo, Zhengru; Zhang, Qingshan [Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System (Ministry of Education), School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093 (China); Liu, Yang; Li, Wenxue [State Key Laboratory of Precision Spectroscopy, East China Normal University, 3663 Zhongshan North Road, Shanghai 200062 (China); Zeng, Heping, E-mail: hpzeng@phy.ecnu.edu.cn [Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System (Ministry of Education), School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093 (China); State Key Laboratory of Precision Spectroscopy, East China Normal University, 3663 Zhongshan North Road, Shanghai 200062 (China)

2014-05-19T23:59:59.000Z

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Fractographic investigation of flaws in sintered SiC fiber  

SciTech Connect (OSTI)

The Carborundum Company has developed a continuous process to produce multifilament, polycrystalline SiC fiber tow. The process uses a melt spinning approach to make the green fibers wherein the submicron SiC powder is mixed with polymers and the resulting compound is melt spun and extruded through a spinnerette. After extraction, the green fibers are sintered in a continuous sintering line. The properties of this fiber are given. This paper will describe the use of fractography in directing the fiber developmental efforts, specifically on characterization of strength-limiting defects and their origination. Fractographic analysis is also extended to determining strength of fibers at any gauge length and in identifying artifacts associated with the tensile strength testing technique.

Srinivasan, G.V.; Venkateswaran, V. [Carborundum Company, Niagara Falls, NY (United States)

1996-12-31T23:59:59.000Z

342

Optical Fiber Sensor Instrumentation for Slagging Coal Gasifiers  

SciTech Connect (OSTI)

Coal gasifier is one of the most promising solutions for clean fossil energy. Refractory thickness monitoring and online real-time temperature measurement is needed for improved reliability and advanced process control for current and future generation power plants. The objective of this program is to design and implement an optical fiber based sensing system that could potentially be used to monitor refractory wall thickness and temperature inside a coal gasifier. For the thickness monitoring, the system should be able to operate at temperatures up to 1000 C. For this temperature range, silica fiber can still work so it is chosen for the sensor design. The measurement is based on a photon counting optical time domain reflectometer. A narrow light pulse is launched into a silica fiber which could be embedded into the gasifier refractory wall, and is partially reflected by the far end of the fiber. The time of flight of the light pulse in the fiber then gives an indication of the position of the fiber end, which is a function of the wall thickness when the fiber is embedded. Results obtained show a measurement accuracy of {+-}2cm in environment of 1000 C with a saw cut fiber end. When the fiber end is corroded by sodium carbide at 900 C, the accuracy is {+-}3cm. For the temperature measurement, a single crystal sapphire fiber sensor is designed. The sapphire fiber guides the broadband light from a light emitting diode to a sapphire wafer functioning as a Fabry-Perot interferometer and the wafer optical thickness is a function of temperature. The returned optical signal is then demodulated by multimode fiber based whitelight interferometry. The system was tested up to 1500 C with a measurement accuracy of {+-}10 C for the entire measurement range.

Anbo Wang; Kristie Cooper

2008-07-19T23:59:59.000Z

343

Faceted ceramic fibers, tapes or ribbons and epitaxial devices therefrom  

DOE Patents [OSTI]

A crystalline article includes a single-crystal ceramic fiber, tape or ribbon. The fiber, tape or ribbon has at least one crystallographic facet along its length, which is generally at least one meter long. In the case of sapphire, the facets are R-plane, M-plane, C-plane or A-plane facets. Epitaxial articles, including superconducting articles, can be formed on the fiber, tape or ribbon.

Goyal, Amit

2013-07-09T23:59:59.000Z

344

Faceted ceramic fibers, tapes or ribbons and epitaxial devices therefrom  

DOE Patents [OSTI]

A crystalline article includes a single-crystal ceramic fiber, tape or ribbon. The fiber, tape or ribbon has at least one crystallographic facet along its length, which is generally at least one meter long. In the case of sapphire, the facets are R-plane, M-plane, C-plane or A-plane facets. Epitaxial articles, including superconducting articles, can be formed on the fiber, tape or ribbon.

Goyal, Amit (Knoxville, TN)

2012-07-24T23:59:59.000Z

345

BN Bonded BN fiber article and method of manufacture  

DOE Patents [OSTI]

A boron nitride bonded boron nitride fiber article and the method for its manufacture which comprises forming a shaped article with a composition comprising a bonding compound selected from boron oxide and boric acid and a structural fiber selected from the group consisting of boron oxide, boron nitride and partially nitrided boron oxide fibers, heating the composition in an anhydrous gas to a temperature above the melting point of the compound and nitriding the resulting article in ammonia gas.

Hamilton, Robert S. (Youngstown, NY)

1981-08-18T23:59:59.000Z

346

Determination of mechanisms by which soluble fibers lower serum cholesterol  

E-Print Network [OSTI]

suggested that one mechanism for the hypo- cholesterolemic effect of certain soluble fibers might be related to the absorption of propionate& a fermentation metabolite of soluble plant fiber, which may inhibit hepatic cholesterol synthesis. In rats, oat... gels and are highly fermentable. In contrast, insoluble fibers do not form gels and are poorly fermentable, but are excellent as bulking agents [37]. This is supported by data from the present study that showed that cellulose-fed rats had...

Sun, Xiao-Qing

1991-01-01T23:59:59.000Z

347

Validation of Material Models for Automotive Carbon Fiber Composite...  

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

Validation of Material Models for Automotive Carbon Fiber Composite Structures (VMM) Libby Berger (General Motors), Omar Faruque (Ford) Co-Principal Investigators US Automotive...

348

aramid fiber reinforced: Topics by E-print Network  

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

2 Micromechanics analysis of Kevlar-29 aramid fiber and epoxy resin microdroplet composite by Micro-Raman spectroscopy Engineering Websites Summary: Micromechanics analysis of...

349

Loading rubidium atoms into a hollow core fiber .  

E-Print Network [OSTI]

??We demonstrate a procedure for cooling, trapping, and transferring rubidium atoms into a hollow core photonic band gap fiber. The atoms are first collected in… (more)

Chu, Yiwen

2007-01-01T23:59:59.000Z

350

Fiber optics interface for a dye laser oscillator and method  

DOE Patents [OSTI]

A dye laser oscillator in which one light beam is used to pump a continuous stream of dye within a cooperating dye chamber for producing a second, different beam is generally disclosed herein along with a specific arrangement including an optical fiber and a fiber optics interface for directing the pumping beam into the dye chamber. The specific fiber optics interface illustrated includes three cooperating lenses which together image one particular dimension of the pumping beam into the dye chamber from the output end of the optical fiber in order to insure that the dye chamber is properly illuminated by the pumping beam.

Johnson, S.A.; Seppala, L.G.

1984-06-13T23:59:59.000Z

351

COURSE SYLLABUS OSE 4470 FALL 2014 `FIBER-OPTIC COMMUNICATIONS'  

E-Print Network [OSTI]

of optical fiber communication systems including the optoelectronic devices used in transmitters) Optoelectronic devices used in transmitters, receivers, and multiplexers. 3) Design of the overall communication

Van Stryland, Eric

352

A microcomputer control system for a fiber optic spectrophotometer  

E-Print Network [OSTI]

SENSOR LICH'I SOURCE OPTICAL F I BER ~SAMPLE PHOTODE'IECTOR o r D o o n o 0 ~ o r Figure lb. Block Diagram of a Fiber Optic Spectrophotometer Fiber optic spectrophotometry uses the light conducting properties of tiny optical fibers... to carry the light to and from a remote sensor, as shown in Figure lb, page 2. At the tip of the fibers, a small chamber contains either the sample itself or an indicator for the sample, whose spectrophotometric properties change with the concentration...

Spar, Steven Matthew

1986-01-01T23:59:59.000Z

353

Connector-induced offsets in optical fiber power meters  

SciTech Connect (OSTI)

We discuss issues related to calibration of optical fiber power meters. The power readings may vary when using various types of fiber connectors, or even the same type of connectors made by different vendors. We study the connector effects by calibrating four types of optical fiber power meters using six different fiber connectors from four vendors at three wavelengths. We found variations of as much as 12% due to the different reflection properties of the detector windows, connectors, and detectors. We also compared connector measurement results with the data obtained by using open beams.

Vayshenker, Igor; Li Xiaoyu; Keenan, Darryl A

2006-08-20T23:59:59.000Z

354

Micromechanical Damage Models for Continuous Fiber Reinforced Composite Materials  

E-Print Network [OSTI]

reinforced plastic matrix composite, Material and Design,1995). Failure of fiber composites: a lattice green functionreinforced titanium composites, Composites Science and

Wu, Yi

2013-01-01T23:59:59.000Z

355

Microsoft Word - CX -Marion to Santiam Fiber.doc  

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

in Marion County, Oregon to BPA's Santiam Substation in Linn County, Oregon. The fiber optics along this route would provide additional support of BPA's internal operational needs...

356

Fiber optics interface for a dye laser oscillator and method  

DOE Patents [OSTI]

A dye laser oscillator in which one light beam is used to pump a continuous tream of dye within a cooperating dye chamber for producing a second, different beam is generally disclosed herein along with a specific arrangement including an optical fiber and a fiber optics interface for directing the pumping beam into the dye chamber. The specific fiber optics interface illustrated includes three cooperating lenses which together image one particular dimension of the pumping beam into the dye chamber from the output end of the optical fiber in order to insure that the dye chamber is properly illuminated by the pumping beam.

Johnson, Steve A. (Tracy, CA); Seppala, Lynn G. (Pleasanton, CA)

1986-01-01T23:59:59.000Z

357

Morphology and properties of recycled polypropylene/bamboo fibers composites  

SciTech Connect (OSTI)

Polypropylene (PP) is among the most widely used thermoplastics in many industrial fields. However, like other recycled polymers, its properties usually decrease after recycling process and sometimes are degraded to poor properties level for direct re-employment. The recycled products, in general, need to be reinforced to have competitive properties. Short bamboo fibers (BF) have been added in a recycled PP (RPP) with and without compatibilizer type maleic anhydride polypropylene (MAPP). Several properties of composite materials, such as helium gas permeability and mechanical properties before and after ageing in water, were examined. The effects of bamboo fiber content and fiber chemical treatment have been also investigated. We showed that the helium permeability increases if fiber content is higher than 30% because of a poor adhesion between untreated bamboo fiber and polymer matrix. The composites reinforced by acetylated bamboo fibers show better helium permeability due to grafting of acetyl groups onto cellulose fibers surface and thus improves compatibility between bamboo fibers and matrix, which has been shown by microscopic observations. Besides, mechanical properties of composite decrease with ageing in water but the effect is less pronounced with low bamboo fiber content.

Phuong, Nguyen Tri; Guinault, Alain; Sollogoub, Cyrille [Laboratoire des Materiaux Industriels Polymeres, CNAM, Paris (France); Chuong, Bui [Polymer Center, Hanoi University of Technology (Viet Nam)

2011-05-04T23:59:59.000Z

358

Biochar Produced from Anaerobically Digested Fiber Reduces Phosphorus...  

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

Lagoons. Abstract: This study evaluated the use of biochar produced from anaerobic digester dairy fiber (ADF) to sequester phosphorus (P) from dairy lagoons. The ADF was...

359

Characterization of commercial fiber optic connectors - Preliminary report  

SciTech Connect (OSTI)

Several types of commercial fiber optic connectors were characterized for potential use in a Sandia designed Laser Diode Ignition (LDI) system. The characterization included optical performance while the connectors were subjected to the more dynamic environmental conditions experienced in weapons applications. The environmental testing included temperature cycling, random vibration, and mechanical shock. This report presents a performance assessment of the fiber optic connectors and fiber included in the characterization. The desirable design features are described for a fiber optic connector that must survive the dynamic environment of weapon systems. The more detailed performance of each connector type will be included as resources permit.

Andrews, Larry A.; Williams, Randy J.

1998-09-01T23:59:59.000Z

360

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...

Note: This page contains sample records for the topic "finishing fiber yarn" 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

acid detergent fiber: Topics by E-print Network  

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

Recent work on pretreatment techniques includes: pretreatment of cedar with peracetic acid and steam explosion to improve... AMMONIA FIBER EXPLOSION (AFEX) TREATMENT OF GRASS A...

362

High-power, hybrid Er:fiber/Tm:fiber frequency comb source in the 2 {\\mu}m wavelength region  

E-Print Network [OSTI]

We present a 2-\\mum frequency comb based on a reliable mode-locked Er:fiber laser with 100 MHz repetition rate. After shifting the spectrum of the amplified Er:fiber comb to longer wavelengths, a single-clad Tm/Ho:fiber is used as a self-pumped pre-amplifier to generate a coherent and broadband spectrum centered at 1.93 \\mum. Subsequently, a cladding-pumped Tm:fiber amplifier boosts the system to a maximum output power of 4.8 W at 1.96 \\mum. After compression in a compact grating compressor, our amplified Er:fiber/Tm:fiber hybrid system delivers as much as 2.9 W with a pulse duration of 141 fs. The system's comb properties are examined via heterodyne measurement.

Adler, Florian

2012-01-01T23:59:59.000Z

363

Method for the continuous processing of hermetic fiber optic components and the resultant fiber optic-to-metal components  

DOE Patents [OSTI]

Hermetic fiber optic-to-metal components and method for making hermetic fiber optic-to-metal components by assembling and fixturing elements comprising a metal shell, a glass preform, and a metal-coated fiber optic into desired relative positions and then sealing said fixtured elements preferably using a continuous heating process is disclosed. The resultant hermetic fiber optic-to-metal components exhibit high hermeticity and durability despite the large differences in thermal coefficients of expansion among the various elements. 3 figs.

Kramer, D.P.

1994-08-09T23:59:59.000Z

364

JOURNAL OF ENVIRONMENTAL ENGINEERING / SEPTEMBER 2000 / 865 CARBON FIBER ADSORPTION USING QUANTITATIVE  

E-Print Network [OSTI]

JOURNAL OF ENVIRONMENTAL ENGINEERING / SEPTEMBER 2000 / 865 CARBON FIBER ADSORPTION USING carbon fiber (ACF) adsorbents. The DR isotherm parameter, k, depends on the adsorbate as well volatile organic compound adsorbates and activated carbon fiber adsorbents. INTRODUCTION Activated carbon

Cal, Mark P.

365

Detection of low concentration oxygen containing functional groups on activated carbon fiber surfaces through fluorescent labeling  

E-Print Network [OSTI]

Detection of low concentration oxygen containing functional groups on activated carbon fiber of surface functional groups (OH, COOH and CHO) on activated carbon fiber surfaces. The chromophores were rights reserved. Keywords: Carbon fibers; X-ray photoelectron spectroscopy; Infrared spectroscopy

Borguet, Eric

366

SURFACE CHARACTERIZATION OF PAN-BASED CARBON FIBERS USING XPS, SIMS, AND AFM  

E-Print Network [OSTI]

SURFACE CHARACTERIZATION OF PAN-BASED CARBON FIBERS USING XPS, SIMS, AND AFM by Kris Anne Battleson on Carbon Fiber Surfaces.....................................17 Atomic Force Microscopy on Carbon Fiber Surfaces.....................................21 Numerical Methods...........................................................................

367

Tests of concrete beams with externally-bonded glass-fiber fabric web reinforcement  

E-Print Network [OSTI]

with vertical glass fibers as tools for shear strengthening and carbon fiber fabrics for flexural strengthening of concrete beams. The experimental study involved testing of two unreinforced control beams and seven other beams with different composite fiber...

Dabholkar, Niranjan Shamsunder

1999-01-01T23:59:59.000Z

368

COMPRESSION STRENGTH OF CARBON FIBER LAMINATES CONTAINING FLAWS WITH FIBER WAVINESS  

E-Print Network [OSTI]

compression strengths and failure strains which are borderline for wind turbine blade designs, depending upon the subject of recent studies of blade materials [1-5] and earlier studies of aerospace prepreg laminates [5 by RTM. Recent interest in blade materials has shown a significant shift toward carbon fiber and hybrids

369

THE DEACTIVATION DECONTAMINATION & DECOMMISSIONING OF THE PLUTONIUM FINISHING PLANT (PFP) A FORMER PLUTONIUM PROCESSING FACILITY AT DOE HANFORD SITE  

SciTech Connect (OSTI)

The Plutonium Finishing Plant (PFP) was constructed as part of the Manhattan Project during World War II. The Manhattan Project was developed to usher in the use of nuclear weapons to end the war. The primary mission of the PFP was to provide plutonium used as special nuclear material (SNM) for fabrication of nuclear devices for the war effort. Subsequent to the end of World War II, the PFP's mission expanded to support the Cold War effort through plutonium production during the nuclear arms race and later the processing of fuel grade mixed plutonium-uranium oxide to support DOE's breeder reactor program. In October 1990, at the close of the production mission for PFP, a shutdown order was prepared by the Department of Energy (DOE) in Washington, DC and issued to the Richland DOE field office. Subsequent to the shutdown order, a team from the Defense Nuclear Facilities Safety Board (DNFSB) analyzed the hazards at PFP associated with the continued storage of certain forms of plutonium solutions and solids. The assessment identified many discrete actions that were required to stabilize the different plutonium forms into stable form and repackage the material in high integrity containers. These actions were technically complicated and completed as part of the PFP nuclear material stabilization project between 1995 and early 2005. The completion of the stabilization project was a necessary first step in deactivating PFP. During stabilization, DOE entered into negotiations with the U.S. Environmental Protection Agency (EPA) and the State of Washington and established milestones for the Deactivation and Decommissioning (D&D) of the PFP. The DOE and its contractor, Fluor Hanford (Fluor), have made great progress in deactivating, decontaminating and decommissioning the PFP at the Hanford Site as detailed in this paper. Background information covering the PFP D&D effort includes descriptions of negotiations with the State of Washington concerning consent-order milestones, milestones completed to date, and the vision of bringing PFP to slab-on-grade. Innovative approaches in planning and regulatory strategies, as well new technologies from within the United States and from other countries and field decontamination techniques developed by workforce personnel, such as the ''turkey roaster'' and the ''lazy Susan'' are covered in detail in the paper. Critical information on issues and opportunities during the performance of the work such as concerns regarding the handling and storage of special nuclear material, concerns regarding criticality safety and the impact of SNM de-inventory at PFP are also provided. The continued success of the PFP D&D effort is due to the detailed, yet flexible, approach to planning that applied innovative techniques and tools, involved a team of experienced independent reviewers, and incorporated previous lessons learned at the Hanford site, Rocky Flats, and commercial nuclear D&D projects. Multi-disciplined worker involvement in the planning and the execution of the work has produced a committed workforce that has developed innovative techniques, resulting in safer and more efficient work evolutions.

CHARBONEAU, S.L.

2006-02-01T23:59:59.000Z

370

Laser and Optical Fiber Metrology in Romania  

SciTech Connect (OSTI)

The Romanian government established in the last five years a National Program for the improvement of country's infrastructure of metrology. The set goal was to develop and accredit testing and calibration laboratories, as well as certification bodies, according to the ISO 17025:2005 norm. Our Institute benefited from this policy, and developed a laboratory for laser and optical fibers metrology in order to provide testing and calibration services for the certification of laser-based industrial, medical and communication products. The paper will present the laboratory accredited facilities and some of the results obtained in the evaluation of irradiation effects of optical and optoelectronic parts, tests run under the EU's Fusion Program.

Sporea, Dan; Sporea, Adelina [National Institute for Lasers, Plasma and Radiation Physics Laser Metrology and Standardization Laboratory 409 Atomistilor St., Magurele, RO-077125 (Romania)

2008-04-15T23:59:59.000Z

371

Programmable optic-fiber delay line  

E-Print Network [OSTI]

. It can supply up to 2 Amp continuous output current with an output short circuit. The thermo-electric cooler (TEC) from Marlow Industries, Inc. can heat or cool material depending on the direction of the electric current driving it. The two input... the fusion. 16 Optical Fiber Electrode V-groove Fig. 5 Basic configuration of electric arc fusion splicer. In order to better understand the fusion process used in fabrication of the Mach-Zender interferometer, especially the available SIECOR model m...

Fang, Shin-Puu

1991-01-01T23:59:59.000Z

372

Kinetics of digestion f forage fiber components  

E-Print Network [OSTI]

. Herzudagrass Katurity Cuttings . . 69 INTHODUCTIOii Fiber is cell wall material composed chiefly of structural carbohydrates wnich are digested by the rumin- ant at one site, the reticulo-rumen, via microbial degra. ? dation and fermen ation to metabolitee... was thought to be involved when whole plant structure was digested in vitro or in situ in contrast to finely ground samples as used in foregoing experiments The forage entering the reticulo-rumen does so in a coarser physical form than that of a sample...

Van Hellen, Russell William

1974-01-01T23:59:59.000Z

373

Carbon Fiber Technology Facility | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: Top FiveDepartment of EnergyLANDSCAPEDepartment ofDepartmentCarbonCarbon Fiber

374

Low Cost Carbon Fiber Research in the LM Materials Program Overview...  

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

Carbon Fiber Research in the LM Materials Program Overview Low Cost Carbon Fiber Research in the LM Materials Program Overview 2009 DOE Hydrogen Program and Vehicle Technologies...

375

Scale Up of Novel, Low-Cost Carbon Fibers Leading to High-Volume...  

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

More Documents & Publications CX-009154: Categorical Exclusion Determination Low Cost Carbon Fiber Research in the LM Materials Program Overview Carbon Fiber Technology...

376

Low-Cost Carbon-Fiber Integration / Users Facility and Commercializati...  

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

Low-Cost Carbon-Fiber Integration Users Facility and Commercialization of Textile Precursors Low-Cost Carbon-Fiber Integration Users Facility and Commercialization of Textile...

377

E-Print Network 3.0 - absolute fiber optic Sample Search Results  

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

Index Terms--Characterization, fiber-arrays, optical fiber, op- tical waveguides, optoelectronic... large numbers of input and output channels that require precisely aligned ......

378

E-Print Network 3.0 - artificial fiber spinning Sample Search...  

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

Design of a Hybrid STMSNOM for Spintronics & OptoelectronicsSpintronics & Optoelectronics the Interiorthe Interior Summary: -field optical fiber Far-field optical fiber...

379

High-Efficiency Solar Cogeneration with TPV & Fiber-Optic Daylighting...  

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

High-Efficiency Solar Cogeneration with TPV & Fiber-Optic Daylighting High-Efficiency Solar Cogeneration with TPV & Fiber-Optic Daylighting Lead Performer: Creative Light Source,...

380

Top 9 Things You Didn't Know about Carbon Fiber | Department...  

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

with the opportunity to develop less expensive, better-performing carbon fiber materials and manufacturing processes. Pictured here is the carbon fiber conversion line with...

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Influence of Lignin modification on PAN-Lignin copolymers as potential carbon fiber precursors.  

E-Print Network [OSTI]

??Carbon fiber based polymer composites have been recognized as advanced materials for structural applications. The unique reinforcing abilities of carbon fibers with their combination of… (more)

Ramasubramanian, Gauri

2013-01-01T23:59:59.000Z

382

The CHORUS scintillating fiber tracker and its monitoring systems  

E-Print Network [OSTI]

A scintillating fiber tracker system consisting of more than one million fibers has been successfully constructed and made operational for the CERN WA95/CHORUS experiment. The design and construction of the tracker system as well as its opto-electronic readout are described. The performance of the detector with high energy muons is presented.

Annis, P; Brooijmans, G; Brunner, J; Dupraz, J P; Dupont, J; Fabre, Jean-Paul; Favart, D; Flegel, Wilfried; Frekers, D; Grégoire, G; Gruwé, M; Hérin, J; Höpfner, K; Kobayashi, M; Konijn, J; Kozaki, T; Lamonte, P; Lemaître, V; Lendermann, P; Macina, Daniela; Meijer-Drees, R; Michel, L; Mommaert, C; Nakamura, K; Nakamura, M; Nakano, T; Nappey, P; Niwa, K; Niu, E; Panman, J; Pintus, R; Riccardi, F; Reynaud, S; Rondeshagen, D; Sato, O; Stefanini, G; Van Beek, G; Van der Donckt, M; Vilain, P; Weinheimer, C; Wilquet, G; Winter, Klaus; Wong, H T

1998-01-01T23:59:59.000Z

383

Fiber Optic Sensors for PEM Fuel Cells Nigel David  

E-Print Network [OSTI]

Fiber Optic Sensors for PEM Fuel Cells by Nigel David B.Sc., Simon Fraser University, 2004 M or other means, without the permission of the author. #12;ii Fiber Optic Sensors for PEM Fuel Cells Fyles, Outside Member (Department of Chemistry) ABSTRACT Fibre-optic sensing techniques for application

Victoria, University of

384

Extrinsic fiber optic displacement sensors and displacement sensing systems  

DOE Patents [OSTI]

An extrinsic Fizeau fiber optic sensor comprises a single-mode fiber, used as an input/output fiber, and a multimode fiber, used purely as a reflector, to form an air gap within a silica tube that acts as a Fizeau cavity. The Fresnel reflection from the glass/air interface at the front of the air gap (reference reflection) and the reflection from the air/glass interface at the far end of the air gap (sensing reflection) interfere in the input/output fiber. The two fibers are allowed to move in the silica tube, and changes in the air gap length cause changes in the phase difference between the reference reflection and the sensing reflection. This phase difference is observed as changes in intensity of the light monitored at the output arm of a fused biconical tapered coupler. The extrinsic Fizeau fiber optic sensor behaves identically whether it is surface mounted or embedded, which is unique to the extrinsic sensor in contrast to intrinsic Fabry-Perot sensors. The sensor may be modified to provide a quadrature phase shift extrinsic Fizeau fiber optic sensor for the detection of both the amplitude and the relative polarity of dynamically varying strain. The quadrature light signals may be generated by either mechanical or optical means. A plurality of the extrinsic sensors may connected in cascade and multiplexed to allow monitoring by a single analyzer.

Murphy, Kent A. (Roanoke, VA); Gunther, Michael F. (Blacksburg, VA); Vengsarkar, Ashish M. (Scotch Plains, NJ); Claus, Richard O. (Christiansburg, VA)

1994-01-01T23:59:59.000Z

385

Method for forming hermetic coatings for optical fibers  

DOE Patents [OSTI]

A method for forming hermetic coatings on optical fibers by hot filament assisted chemical vapor deposition advantageously produces a desirable coating while maintaining the pristine strength of the pristine fiber. The hermetic coatings may be formed from a variety of substances, such as, for example, boron nitride and carbon.

Michalske, Terry A. (P.O. Box 1042, Cedar Crest, NM 87008); Rye, Robert R. (1304 Espanola NE., Albuquerque, NM 87110); Smith, William L. (9916 Fostoria Rd., NE., Albuquerque, NM 87111)

1993-01-01T23:59:59.000Z

386

Broadband Photodetector Based on Carbon Nanotube Fibers Simon Lee,1  

E-Print Network [OSTI]

UG-30 Broadband Photodetector Based on Carbon Nanotube Fibers Simon Lee,1 Xuan Wang absorption properties of the carbon nanotube fibers generate a thermal distribution across the length of applications of carbon nanotubes has been constantly expanding since its inception. From being a copper wire

387

Carbon Fiber Components with Integrated Wiring for Millirobot Prototyping *  

E-Print Network [OSTI]

Carbon Fiber Components with Integrated Wiring for Millirobot Prototyping * Ranjana Sahai Erik a simple four bar mechanism as an example. Finally, the tests show that the wiring loop over a flexure the folded stainless steel triangles and polyester flexures. Hence, we decided to use carbon fiber instead

Fearing, Ron

388

Manufacturing processes and molding of fiber-reinforced polyetheretherketone  

SciTech Connect (OSTI)

The paper presents and discusses cetain procedures for manufacturing components from continuous fiber reinforced thermoplastics using carbon fiber-reinforced polyetheretherketone (PEEK). The manufacturing quality achieved has been examined and compared with the aid of bending tests and micrographs. Some thermal decomposition tests were also done. 5 refs.

Kempe, G.; Krauss, H. (DLR, Stuttgart (West Germany))

1991-04-01T23:59:59.000Z

389

Degradation of Carbon Fiber-reinforced Epoxy Composites by Ultraviolet  

E-Print Network [OSTI]

, combined exposure to UV radiation and water vapor, which are predominantly responsible for degradationDegradation of Carbon Fiber-reinforced Epoxy Composites by Ultraviolet Radiation and Condensation) ABSTRACT: The degradation of an IM7/997 carbon fiber-reinforced epoxy exposed to ultraviolet radiation and

Nakamura, Toshio

390

Fiber Depolymerization M. S. Turner,* G. Agarwal,y  

E-Print Network [OSTI]

in the pathology of sickle cell disease. If sickle hemoglobin fibers fail to depolymerize fully during passage that depolymerization processes are now believed to play an important role in sickle cell disease and may even- strated the feasibility of measuring the depolymerization of individual sickle cell fibers (3). New

Turner, Matthew

391

ON THE SIMULATION OF KINK BANDS IN FIBER REINFORCED COMPOSITES  

E-Print Network [OSTI]

ON THE SIMULATION OF KINK BANDS IN FIBER REINFORCED COMPOSITES Kim D. Sørensen , Lars P. Mikkelsen reinforced composites are carried out using the commercial finite element program ABAQUS. A smeared in fiber reinforced composites has been the subject of a number of recent investigations. It has been found

392

Fiber-optic oxygen sensor using molybdenum chloride cluster luminescence  

E-Print Network [OSTI]

Fiber-optic oxygen sensor using molybdenum chloride cluster luminescence Ruby N. Ghosh,a) Gregory L on a reflection-mode fiber-optic oxygen sensor based on the 3 O2 quenching of the red emission from hexanuclear molybdenum chloride clusters. Measurements of the probe operating in a 0%­21% gaseous oxygen environment have

Ghosh, Ruby N.

393

Porous polymer fibers for low-loss Terahertz guiding  

E-Print Network [OSTI]

of this fiber type is also compared to that of the equivalent sub-wavelength rod-in-the-air fiber the collective vibrational dynamics of a protein in liquid water by terahertz absorption spectroscopy", Protein. Kawase, "Laser terahertz-emission microscope for inspecting electrical faults in integrated circuits

Skorobogatiy, Maksim

394

Properties study of cotton stalk fiber/gypsum composite  

SciTech Connect (OSTI)

This manuscript addresses treating cotton stalk fiber surface with styrene acrylic emulsion, which improves the interfacial combined state of cotton stalk fiber/gypsum composite effectively and improves its mechanical properties notably. Mixes less slag, ordinary Portland cement, etc., to modify gypsum base. The electron microscope was utilized to analyze and research on the effect on composite properties of the abovementioned mixtures.

Li Guozhong; Yu Yanzhen; Zhao Zhongjian; Li Jianquan; Li Changchun

2003-01-01T23:59:59.000Z

395

Grizzly Substation Fiber Optics : Environmental Assessment.  

SciTech Connect (OSTI)

This notice announces BPA`s decision to construct, operate, and maintain the Grizzly Substation Fiber Optic Project (Project). This Project is part of a continuing effort by BPA to complete a regionwide upgrade of its existing telecommunications system. The US Forest Service and BPA jointly prepared the Grizzly Substation Fiber Optic Project Environmental Assessment (EA) (DOE/EA-1241) evaluating the potential environmental impacts of the Proposed Action, the Underground Installation Alternative, and the No Action Alternative. Based on the analysis in the EA, the US Forest Service and BPA have determined that the Proposed Action is not a major Federal action significantly affecting the quality of the human environment, within the meaning of the National Environmental Policy Act (NEPA) of 1969. Therefore, the preparation of an Environmental Impact Statement (EIS) is not required and BPA is issuing this FONSI. The US Forest Service has separately issued a FONSI and Decision Notice authorizing BPA to construct, operate, and maintain the Project within the Crooked River National Grassland (Grassland).

United States. Bonneville Power Administration.

1998-02-01T23:59:59.000Z

396

Fiber optic-based regenerable biosensor  

DOE Patents [OSTI]

A fiber optic-based regenerable biosensor. The biosensor is particularly suitable for use in microscale work in situ. In one embodiment, the biosensor comprises a reaction chamber disposed adjacent the distal end of a waveguide and adapted to receive therein a quantity of a sample containing an analyte. Leading into the chamber is a plurality of capillary conduits suitable for introducing into the chamber antibodies or other reagents suitable for selective interaction with a predetermined analyte. Following such interaction, the contents of the chamber may be subjected to an incident energy signal for developing fluorescence within the chamber that is detectable via the optical fiber and which is representative of the presence, i.e. concentration, of the selected analyte. Regeneration of the biosensor is accomplished by replacement of the reagents and/or the analyte, or a combination of these, at least in part via one or more of the capillary conduits. The capillary conduits extend from their respective terminal ends that are in fluid communication with the chamber, away from the chamber to respective location(s) remote from the chamber thereby permitting in situ location of the chamber and remote manipulation and/or analysis of the activity with the chamber.

Sepaniak, Michael J. (Knoxville, TN); Vo-Dinh, Tuan (Knoxville, TN)

1993-01-01T23:59:59.000Z

397

A Fiber Interferometer for the Magnetized Shock Experiment  

SciTech Connect (OSTI)

The Magnetized Shock Experiment (MSX) at Los Alamos National Laboratory requires remote diagnostics of plasma density. Laser interferometry can be used to determine the line-integrated density of the plasma. A multi-chord heterodyne fiber optic Mach-Zehnder interferometer is being assembled and integrated into the experiment. The advantage of the fiber coupling is that many different view chords can be easily obtained by simply moving transmit and receive fiber couplers. Several such fiber sets will be implemented to provide a time history of line-averaged density for several chords at once. The multiple chord data can then be Abel inverted to provide radially resolved spatial profiles of density. We describe the design and execution of this multiple fiber interferometer.

Yoo, Christian [Los Alamos National Laboratory

2012-08-30T23:59:59.000Z

398

Measurement of large strains in ropes using plastic optical fibers  

DOE Patents [OSTI]

A method for the direct measurement of large strains in ropes in situ using a plastic optical fiber, for example, perfluorocarbon or polymethyl methacrylate and Optical Time-Domain Reflectometer or other light time-of-flight measurement instrumentation. Protective sheaths and guides are incorporated to protect the plastic optical fiber. In one embodiment, a small rope is braided around the plastic optical fiber to impose lateral compressive forces to restrain the plastic optical fiber from slipping and thus experience the same strain as the rope. Methods are described for making reflective interfaces along the length of the plastic optical fiber and to provide the capability to measure strain within discrete segments of the rope. Interpretation of the data allows one to calculate the accumulated strain at any point in time and to determine if the rope has experienced local damage.

Williams, Jerry Gene; Smith, David Barton; Muhs, Jeffrey David

2006-02-14T23:59:59.000Z

399

Apparatus and method for carbon fiber surface treatment  

SciTech Connect (OSTI)

An apparatus and method for enhancing the surface energy and/or surface chemistry of carbon fibers involves exposing the fibers to direct or indirect contact with atmospheric pressure plasma generated using a background gas containing at least some oxygen or other reactive species. The fiber may be exposed directly to the plasma, provided that the plasma is nonfilamentary, or the fiber may be exposed indirectly through contact with gases exhausting from a plasma discharge maintained in a separate volume. In either case, the process is carried out at or near atmospheric pressure, thereby eliminating the need for vacuum equipment. The process may be further modified by moistening the fibers with selected oxygen-containing liquids before exposure to the plasma.

Paulauskas, Felix L; Sherman, Daniel M

2014-06-03T23:59:59.000Z

400

Apparatus and method for carbon fiber surface treatment  

DOE Patents [OSTI]

An apparatus and method for enhancing the surface energy and/or surface chemistry of carbon fibers involves exposing the fibers to direct or indirect contact with atmospheric pressure plasma generated using a background gas containing at least some oxygen or other reactive species. The fiber may be exposed directly to the plasma, provided that the plasma is nonfilamentary, or the fiber may be exposed indirectly through contact with gases exhausting from a plasma discharge maintained in a separate volume. In either case, the process is carried out at or near atmospheric pressure, thereby eliminating the need for vacuum equipment. The process may be further modified by moistening the fibers with selected oxygen-containing liquids before exposure to the plasma.

Paulauskas, Felix L. (Knoxville, TN); Sherman, Daniel M. (Knoxville, TN)

2012-07-24T23:59:59.000Z

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Determining the effect of seawater on the interfacial shear strength of fiber reinforced epoxies using the single fiber fragmentation test  

E-Print Network [OSTI]

of fiber reinforced polymer composite materials. The single fiber fragmentation test (SFFT) and Kelly-Tyson shear lag analysis were used to evaluate the effect of seawater on the interfacial shear strength (IFSS) of carbon/epoxy and glass/epoxy composite...

Pratt, Barbara Ann

1996-01-01T23:59:59.000Z

402

Achieving "Green" Concrete Through The Use Of High Performance FiberThe Use Of High Performance Fiber  

E-Print Network [OSTI]

Achieving "Green" Concrete Through The Use Of High Performance FiberThe Use Of High Performance Fiber Reinforced Concrete ShihShih--Ho Chao,Ho Chao, Ph.DPh.D Assistant Professor, Department of Civil, 2008 #12;What is D rable Concrete?What is D rable Concrete?What is Durable Concrete?What is Durable

Chao, Shih-Ho

403

Rotating fiber array molecular driver and molecular momentum transfer device constructed therewith  

DOE Patents [OSTI]

A rotating fiber array molecular driver is disclosed which includes a magnetically suspended and rotated central hub to which is attached a plurality of elongated fibers extending radially therefrom. The hub is rotated so as to straighten and axially extend the fibers and to provide the fibers with a tip speed which exceeds the average molecular velocity of fluid molecules entering between the fibers. Molecules colliding with the sides of the rotating fibers are accelerated to the tip speed of the fiber and given a momentum having a directional orientation within a relatively narrow distribution angle at a point radially outward of the hub, which is centered and peaks at the normal to the fiber sides in the direction of fiber rotation. The rotating fiber array may be used with other like fiber arrays or with other stationary structures to form molecular momentum transfer devices such as vacuum pumps, molecular separators, molecular coaters, or molecular reactors.

Milleron, Norman (1854 San Juan, Berkeley, CA 94707)

1983-01-01T23:59:59.000Z

404

Effect of high-temperature loading on mechanical properties of Nicalon fibers and Nicalon fiber/SiC matrix composites  

SciTech Connect (OSTI)

Results of an investigation into the effect of elevated temperature exposure on the strength distribution of Nicalon fibers as well on mechanical properties of Nicalon/SiC composites are reported in this paper. Single-fiber strength distribution of as-fabricated Nicalon fibers was obtained from bundle tests. Strength distributions of fractured fibers in as-fabricated Nicalon/SiC composites and after elevated temperature exposure of composites were assessed from measurements of fracture mirror radii. Variations in the mechanical properties of composites evaluated as a function of test temperatures are compared with those evaluated at room temperature and are correlated to the fiber strength characteristics. Limited tests were also conducted to investigate the effect of long term exposure at elevated temperatures on composite ultimate strength.

Singh, D.; Singh, J.P.

1993-01-01T23:59:59.000Z

405

Carbon fiber composite characterization in adverse thermal environments.  

SciTech Connect (OSTI)

The behavior of carbon fiber aircraft composites was studied in adverse thermal environments. The effects of resin composition and fiber orientation were measured in two test configurations: 102 by 127 millimeter (mm) test coupons were irradiated at approximately 22.5 kW/m{sup 2} to measure thermal response, and 102 by 254 mm test coupons were irradiated at approximately 30.7 kW/m{sup 2} to characterize piloted flame spread in the vertically upward direction. Carbon-fiber composite materials with epoxy and bismaleimide resins, and uni-directional and woven fiber orientations, were tested. Bismaleimide samples produced less smoke, and were more resistant to flame spread, as expected for high temperature thermoset resins with characteristically lower heat release rates. All materials lost approximately 20-25% of their mass regardless of resin type, fiber orientation, or test configuration. Woven fiber composites displayed localized smoke jetting whereas uni-directional composites developed cracks parallel to the fibers from which smoke and flames emanated. Swelling and delamination were observed with volumetric expansion on the order of 100% to 200%. The purpose of this work was to provide validation data for SNL's foundational thermal and combustion modeling capabilities.

Gomez-Vasquez, Sylvia; Brown, Alexander L.; Hubbard, Joshua A.; Ramirez, Ciro J.; Dodd, Amanda B.

2011-05-01T23:59:59.000Z

406

Raman fiber optic probe assembly for use in hostile environments  

DOE Patents [OSTI]

This invention provides a device for Raman spectroscopic measurement of composition and concentrations in a hostile environment by the use of a first fiber optic as a means of directing high intensity monochromatic light from a laser to the hostile environment and a second fiber optic to receive the lower intensity scattered light for transmittal to a monochromator for analysis. To avoid damage to the fiber optics, they are protected from the hostile environment. A preferred embodiment of the Raman fiber optic probe is able to obtain Raman spectra of corrosive gases and solutions at temperatures up to 600.degree. F. and pressures up to 2000 psi. The incident exciting fiber optic cable makes an angle of substantially 90.degree. with the collecting fiber optic cable. This 90.degree. geometry minimizes the Rayleigh scattering signal picked up by the collecting fiber, because the intensity of Rayleigh scattering is lowest in the direction perpendicular to the beam path of the exciting light and therefore a 90.degree. scattering geometry optimizes the signal to noise ratio.

Schmucker, John E. (Hurt, VA); Falk, Jon C. (Pittsburgh, PA); Archer, William B. (Bethel Park, PA); Blasi, Raymond J. (Harrison City, PA)

2000-01-01T23:59:59.000Z

407

Unusual ASD Motor Conversions in a Carpet Yarn Plant  

E-Print Network [OSTI]

are from 2002, they were escalated by 6% or 2% per year for three years. The final cost included is the labor to install the motor and controller. The installation is assumed to require one electrician. The labor time to install the motor is six... operation must be known. For this application, assume that the twister speed ratio must be changed once every two weeks, the twister production rate is 150 lb/hr, value added by twisting is $0.75/lb, pulley change-out time is 45 minutes and the labor...

Brown, M.; Meffert, W.

2006-01-01T23:59:59.000Z

408

CONTAMINATED PROCESS EQUIPMENT REMOVAL FOR THE D&D OF THE 232-Z CONTAMINATED WASTE RECOVERY PROCESS FACILITY AT THE PLUTONIUM FINISHING PLANT (PFP)  

SciTech Connect (OSTI)

This paper describes the unique challenges encountered and subsequent resolutions to accomplish the deactivation and decontamination of a plutonium ash contaminated building. The 232-Z Contaminated Waste Recovery Process Facility at the Plutonium Finishing Plant was used to recover plutonium from process wastes such as rags, gloves, containers and other items by incinerating the items and dissolving the resulting ash. The incineration process resulted in a light-weight plutonium ash residue that was highly mobile in air. This light-weight ash coated the incinerator's process equipment, which included gloveboxes, blowers, filters, furnaces, ducts, and filter boxes. Significant airborne contamination (over 1 million derived air concentration hours [DAC]) was found in the scrubber cell of the facility. Over 1300 grams of plutonium held up in the process equipment and attached to the walls had to be removed, packaged and disposed. This ash had to be removed before demolition of the building could take place.

HOPKINS, A.M.; MINETTE, M.J.; KLOS, D.B.

2007-01-25T23:59:59.000Z

409

RAMAN SPECTROSCOPY OF MACROSCALE FIBERS COMPRISED OF CARBON NANOTUBES OF DIFFERENT  

E-Print Network [OSTI]

RAMAN SPECTROSCOPY OF MACROSCALE FIBERS COMPRISED OF CARBON NANOTUBES OF DIFFERENT LENGTHS UNDER University Carbon nanotube (CNT) fibers are considered an excellent material for high performance engineering) Fibers Raman Spectroscopy of Macroscopic Fibers Spun from Carbon Nanotubes under Tensile Strain D

Mellor-Crummey, John

410

Autonomic Healing of Carbon Fiber/Epoxy Interfaces Amanda R. Jones,  

E-Print Network [OSTI]

Autonomic Healing of Carbon Fiber/Epoxy Interfaces Amanda R. Jones, Alicia Cintora, Scott R. White (IFSS) is achieved for carbon fiber/epoxy interfaces functionalized with capsules containing reactive of capsules on the carbon fiber surface. Two different methods for applying the binder to the carbon fiber

Sottos, Nancy R.

411

Magnetic polyacrylonitrile-Fe@FeO nanocomposite fibers -Electrospinning, stabilization and carbonization  

E-Print Network [OSTI]

that of the pure PAN fibers. Magnetic carbon nanocomposite (MCNC) fibers are prepared through the stabilization and carbonization of the electrospun PNC fibers. The effects of the heating procedures, including the stabilization and carbonization temperature and time, on the fiber morphology are systematically investigated. Both short and long

Guo, John Zhanhu

412

Carbon Nanotube Mats and Fibers with Irradiation-Improved Mechanical Characteristics: ATheoretical Model  

E-Print Network [OSTI]

Carbon Nanotube Mats and Fibers with Irradiation-Improved Mechanical Characteristics: ATheoretical model to calculate mechanical characteristics of macroscopic mats and fibers of single-walled carbon-flow technique [4]. The SWNT fibers, which in contrast to most ordinary carbon fibers could be strongly bent with

Krasheninnikov, Arkady V.

413

PERGAMON Carbon 39 (2001) 369373 Effect of carbon fiber grade on the electrical behavior of  

E-Print Network [OSTI]

PERGAMON Carbon 39 (2001) 369­373 Effect of carbon fiber grade on the electrical behavior of carbon 2000 Abstract Electrical conduction in cement reinforced by short carbon fibers below the percolation is decreased by increasing the fiber crystallinity, but is increased by using intercalated fibers. The carbon

Chung, Deborah D.L.

414

Femtosecond laser pulse generation with a fiber taper embedded in carbon  

E-Print Network [OSTI]

Femtosecond laser pulse generation with a fiber taper embedded in carbon nanotube/polymer composite and demonstrate a new saturable absorber based on a fiber taper embedded in a carbon nanotube/polymer composite absorber. Using an embedded fiber-taper saturable absorber, we built an all-fiber mode-locked ring laser

Kieu, Khanh

415

Carbon nanotube mats and fibers with irradiation-improved mechanical characteristics: a theoretical model  

E-Print Network [OSTI]

1 Carbon nanotube mats and fibers with irradiation-improved mechanical characteristics characteristics of macroscopic mats and fibers of single-walled carbon nanotubes. We further investigate]. The SWNT fibers, which in contrast to most ordinary carbon fibers could be strongly bent without breaking

Nordlund, Kai

416

Carbon 39 (2001) 19952001 Silane-treated carbon fiber for reinforcing cement  

E-Print Network [OSTI]

Carbon 39 (2001) 1995­2001 Silane-treated carbon fiber for reinforcing cement *Yunsheng Xu, D-treated carbon fibers and silane-treated silica fume, relative to the values for cement paste with as-received carbon fibers and as-received silica fume. Silane treatment of fibers and silica fume contributed about

Chung, Deborah D.L.

417

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

E-Print Network [OSTI]

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

York, Robyn MB; Gordon, Ian L

2009-01-01T23:59:59.000Z

418

ULTRAFAST OPTICS AND OPTICAL FIBER COMMUNICATIONS LABORATORYLEOS 2003 Multiple Output Channel  

E-Print Network [OSTI]

DSTAWG DST Pulse Shaper Fiber ports Imaging optics U.S. Quarter #12;ULTRAFAST OPTICS AND OPTICAL FIBER;ULTRAFAST OPTICS AND OPTICAL FIBER COMMUNICATIONS LABORATORYLEOS 2003 One Guide ­ One Pulse Pulses slab Loss-engineering to control relative pulse amplitude. #12;ULTRAFAST OPTICS AND OPTICAL FIBER

Purdue University

419

Optical fiber-based fluorescent viscosity sensor Mark A. Haidekker and Walter J. Akers  

E-Print Network [OSTI]

Optical fiber-based fluorescent viscosity sensor Mark A. Haidekker and Walter J. Akers Department bound to a fiber-optic tip without loss of viscosity sensi- tivity. The optical fiber itself may be used to molecular rotors in solution. An optical fiber-based fluorescent vis- cosity sensor may be used in real

Theodorakis, Emmanuel

420

Method of making a continuous ceramic fiber composite hot gas filter  

DOE Patents [OSTI]

A ceramic fiber composite structure particularly suitable for use as a hot gas cleanup ceramic fiber composite filter and method of making same from ceramic composite material has a structure which provides for increased strength and toughness in high temperature environments. The ceramic fiber composite structure or filter is made by a process in which a continuous ceramic fiber is intimately surrounded by discontinuous chopped ceramic fibers during manufacture to produce a ceramic fiber composite preform which is then bonded using various ceramic binders. The ceramic fiber composite preform is then fired to create a bond phase at the fiber contact points. Parameters such as fiber tension, spacing, and the relative proportions of the continuous ceramic fiber and chopped ceramic fibers can be varied as the continuous ceramic fiber and chopped ceramic fiber are simultaneously formed on the porous vacuum mandrel to obtain a desired distribution of the continuous ceramic fiber and the chopped ceramic fiber in the ceramic fiber composite structure or filter.

Hill, Charles A. (Lynchburg, VA); Wagner, Richard A. (Lynchburg, VA); Komoroski, Ronald G. (Lynchburg, VA); Gunter, Greg A. (Lynchburg, VA); Barringer, Eric A. (Lynchburg, VA); Goettler, Richard W. (Lynchburg, VA)

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Use of a fiber optic probe for organic species determination  

DOE Patents [OSTI]

A fiber optic probe for remotely detecting the presence and concentration organic species in aqueous solutions. The probe includes a cylindrical housing with an organic species indicator, preferably diaminonaphthyl sulfonic acid adsorbed in a silica gel (DANS-modified gel), contained in the probe's distal end. The probe admits aqueous solutions to the probe interior for mixing within the DANS-modified gel. An optical fiber transmits light through the DANS-modified gel while the indicator reacts with organic species present in the solution, thereby shifting the location of the fluorescent peak. The altered light is reflected to a receiving fiber that carries the light to a spectrophotometer or other analysis device.

Ekechukwu, Amy A. (Augusta, GA)

1996-01-01T23:59:59.000Z

422

Activated carbon fiber composite material and method of making  

DOE Patents [OSTI]

An activated carbon fiber composite for separation and purification, or catalytic processing of fluids is described. The activated composite comprises carbon fibers rigidly bonded to form an open, permeable, rigid monolith capable of being formed to near-net-shape. Separation and purification of gases are effected by means of a controlled pore structure that is developed in the carbon fibers contained in the composite. The open, permeable structure allows the free flow of gases through the monolith accompanied by high rates of adsorption. By modification of the pore structure and bulk density the composite can be rendered suitable for applications such as gas storage, catalysis, and liquid phase processing.

Burchell, Timothy D. (Oak Ridge, TN); Weaver, Charles E. (Knoxville, TN); Chilcoat, Bill R. (Knoxville, TN); Derbyshire, Frank (Lexington, KY); Jagtoyen, Marit (Lexington, KY)

2001-01-01T23:59:59.000Z

423

Activated carbon fiber composite material and method of making  

DOE Patents [OSTI]

An activated carbon fiber composite for separation and purification, or catalytic processing of fluids is described. The activated composite comprises carbon fibers rigidly bonded to form an open, permeable, rigid monolith capable of being formed to near-net-shape. Separation and purification of gases are effected by means of a controlled pore structure that is developed in the carbon fibers contained in the composite. The open, permeable structure allows the free flow of gases through the monolith accompanied by high rates of adsorption. By modification of the pore structure and bulk density the composite can be rendered suitable for applications such as gas storage, catalysis, and liquid phase processing.

Burchell, Timothy D. (Oak Ridge, TN); Weaver, Charles E. (Knoxville, TN); Chilcoat, Bill R. (Knoxville, TN); Derbyshire, Frank (Lexington, KY); Jagtoyen, Marit (Lexington, KY)

2000-01-01T23:59:59.000Z

424

Dietary fiber consumption by the U.S. population  

E-Print Network [OSTI]

on a sample size of at least 5, 228 individuals per gender. * Values in the same row with a different superscript are significantly different at P&0. 01. The older the person, the more fiber consumed overall and at each meal. Fiber consumption... in the same row with a different superscript are significantly different at P&0. 01. 14 TABLE 3 Grams of dietary fiber contributed by meals according to age for women. 1 15-19 SEM 20-24 SEM 25-39 SEM 40-59 SEM 60-69 SEM MEAL BREAKFAST 1. 6c (0. 11...

Economopoulos, Christine Katherine

2012-06-07T23:59:59.000Z

425

Fabrication of fiber supported ionic liquids and methods of use  

DOE Patents [OSTI]

One or more embodiments relates to the production of a fabricated fiber having an asymmetric polymer network and having an immobilized liquid such as an ionic liquid within the pores of the polymer network. The process produces the fabricated fiber in a dry-wet spinning process using a homogenous dope solution, providing significant advantage over current fabrication methods for liquid-supporting polymers. The fabricated fibers may be effectively utilized for the separation of a chemical species from a mixture based on the selection of the polymer, the liquid, and the solvent utilized in the dope.

Luebke, David R; Wickramanayake, Shan

2013-02-26T23:59:59.000Z

426

Distributed Fiber Optic Gas Sensing for Harsh Environment  

SciTech Connect (OSTI)

This report summarizes work to develop a novel distributed fiber-optic micro-sensor that is capable of detecting common fossil fuel gases in harsh environments. During the 32-month research and development (R&D) program, GE Global Research successfully synthesized sensing materials using two techniques: sol-gel based fiber surface coating and magnetron sputtering based fiber micro-sensor integration. Palladium nanocrystalline embedded silica matrix material (nc-Pd/Silica), nanocrystalline palladium oxides (nc-PdO{sub x}) and palladium alloy (nc-PdAuN{sub 1}), and nanocrystalline tungsten (nc-WO{sub x}) sensing materials were identified to have high sensitivity and selectivity to hydrogen; while the palladium doped and un-doped nanocrystalline tin oxide (nc-PdSnO{sub 2} and nc-SnO{sub 2}) materials were verified to have high sensitivity and selectivity to carbon monoxide. The fiber micro-sensor comprises an apodized long-period grating in a single-mode fiber, and the fiber grating cladding surface was functionalized by above sensing materials with a typical thickness ranging from a few tens of nanometers to a few hundred nanometers. GE found that the morphologies of such sensing nanomaterials are either nanoparticle film or nanoporous film with a typical size distribution from 5-10 nanometers. nc-PdO{sub x} and alloy sensing materials were found to be highly sensitive to hydrogen gas within the temperature range from ambient to 150 C, while nc-Pd/Silica and nc-WO{sub x} sensing materials were found to be suitable to be operated from 150 C to 500 C for hydrogen gas detection. The palladium doped and un-doped nc-SnO{sub 2} materials also demonstrated sensitivity to carbon monoxide gas at approximately 500 C. The prototyped fiber gas sensing system developed in this R&D program is based on wavelength-division-multiplexing technology in which each fiber sensor is identified according to its transmission spectra features within the guiding mode and cladding modes. The interaction between the sensing material and fossil fuel gas results in a refractive index change and optical absorption in the sensing layer. This induces mode coupling strength and boundary conditions changes and thereby shifts the central wavelengths of the guiding mode and cladding modes propagation. GE's experiments demonstrated that such an interaction between the fossil fuel gas and sensing material not only shifts the central wavelengths of the guide mode and cladding modes propagation, but also alters their power loss characteristics. The integrated fiber gas sensing system includes multiple fiber gas sensors, fiber Bragg grating-based temperature sensors, fiber optical interrogator, and signal processing software.

Juntao Wu

2008-03-14T23:59:59.000Z

427

Titanium diboride ceramic fiber composites for Hall-Heroult cells  

DOE Patents [OSTI]

An improved cathode structure for Hall-Heroult cells for the electrolytic production of aluminum metal. This cathode structure is a preform fiber base material that is infiltrated with electrically conductive titanium diboride using chemical vapor infiltration techniques. The structure exhibits good fracture toughness, and is sufficiently resistant to attack by molten aluminum. Typically, the base can be made from a mat of high purity silicon carbide fibers. Other ceramic or carbon fibers that do not degrade at temperatures below about 1000 deg. C can be used.

Besmann, Theodore M. (Knoxville, TN); Lowden, Richard A. (Knoxville, TN)

1990-01-01T23:59:59.000Z

428

Titanium diboride ceramic fiber composites for Hall-Heroult cells  

DOE Patents [OSTI]

An improved cathode structure is described for Hall-Heroult cells for the electrolytic production of aluminum metal. This cathode structure is a preform fiber base material that is infiltrated with electrically conductive titanium diboride using chemical vapor infiltration techniques. The structure exhibits good fracture toughness, and is sufficiently resistant to attack by molten aluminum. Typically, the base can be made from a mat of high purity silicon carbide fibers. Other ceramic or carbon fibers that do not degrade at temperatures below about 1000 C can be used.

Besmann, T.M.; Lowden, R.A.

1990-05-29T23:59:59.000Z

429

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

430

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

431

Metal matrix coated fiber composites and the methods of manufacturing such composites  

DOE Patents [OSTI]

A fiber coating which allows ceramic or metal fibers to be wetted by molten metals is disclosed. The coating inhibits degradation of the physical properties caused by chemical reaction between the fiber and the coating itself or between the fiber and the metal matrix. The fiber coating preferably includes at least a wetting layer, and in some applications, a wetting layer and a barrier layer between the fiber and the wetting layer. The wetting layer promotes fiber wetting by the metal matrix. The barrier layer inhibits fiber degradation. The fiber coating permits the fibers to be infiltrated with the metal matrix resulting in composites having unique properties not obtainable in pure materials. 8 figures.

Weeks, J.K. Jr.; Gensse, C.

1993-09-14T23:59:59.000Z

432

Fosmid Cre-LoxP Inverse PCR Paired-End (Fosmid CLIP-PE), a Novel Method for Constructing Fosmid Pair-End Library (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

SciTech Connect (OSTI)

Ze Peng from DOE JGI presents "Fosmid Cre-LoxP Inverse PCR Paired-End (Fosmid CLIP-PE), a Novel Method for Constructing Fosmid Pair-End Library" at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

Peng, Ze [DOE JGI] [DOE JGI

2012-06-01T23:59:59.000Z

433

Fosmid Cre-LoxP Inverse PCR Paired-End (Fosmid CLIP-PE), a Novel Method for Constructing Fosmid Pair-End Library (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

ScienceCinema (OSTI)

Ze Peng from DOE JGI presents "Fosmid Cre-LoxP Inverse PCR Paired-End (Fosmid CLIP-PE), a Novel Method for Constructing Fosmid Pair-End Library" at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

Peng, Ze [DOE JGI

2013-01-25T23:59:59.000Z

434

Low-temperature hermetic sealing of optical fiber components  

DOE Patents [OSTI]

A method for manufacturing low-temperature hermetically sealed optical fi components is provided. The method comprises the steps of: inserting an optical fiber into a housing, the optical fiber having a glass core, a glass cladding and a protective buffer layer disposed around the core and cladding; heating the housing to a predetermined temperature, the predetermined temperature being below a melting point for the protective buffer layer and above a melting point of a solder; placing the solder in communication with the heated housing to allow the solder to form an eutectic and thereby fill a gap between the interior of the housing and the optical fiber; and cooling the housing to allow the solder to form a hermetic compression seal between the housing and the optical fiber.

Kramer, Daniel P. (Centerville, OH)

1996-10-22T23:59:59.000Z

435

A fiber optic probe for oxygen partial pressure sensing  

E-Print Network [OSTI]

fiber detection methods because the excitation wavelength (468 nm) and the emmission wavelength (514 nm) are both in the visible portion of the spectrum. Fluoro-green gold is available commercially from BASF-Wyandote Corporation. Samples...

Schlain, Leslie Ariel

1986-01-01T23:59:59.000Z

436

Partial-Flow Diesel Particulate Filter of Sintered Metal Fiber...  

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

Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. p-05lu.pdf More Documents & Publications Advanced Metal Fiber...

437

Microsoft Word - Bell-BoundaryFiber_CX_Update_2014.docx  

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

work described in the previous Categorical Exclusion, BPA proposes to clear brush, trim tree limbs, and remove up to 10 trees to enable equipment to install the underground fiber...

438

Hermetic fiber optic-to-metal connection technique  

DOE Patents [OSTI]

A glass-to-glass hermetic sealing technique is disclosed which can be used to splice lengths of glass fibers together. A solid glass preform is inserted into the cavity of a metal component which is then heated to melt the glass. An end of an optical fiber is then advanced into the molten glass and the entire structure cooled to solidify the glass in sealing engagement with the optical fiber end and the metal cavity. The surface of the re-solidified glass may be machined for mating engagement with another component to make a spliced fiber optic connection. The resultant structure has a helium leak rate of less than 1.times.10.sup.-8 cm.sup.3 /sec.

Kramer, Daniel P. (Centerville, OH)

1992-09-01T23:59:59.000Z

439

Stresses resulting from compression of bulk cotton lint fibers  

E-Print Network [OSTI]

The modulus of elasticity, Poisson's ratio and shear modulus of bulk cotton lint fibers were determined. The cotton lint was compressed in an MTS machine to a predetermined density, and the resilient forces induced by the cotton lint after being...

Chimbombi, Ezekiel Maswe

1998-01-01T23:59:59.000Z

440

Loading rubidium atoms into a hollow core fiber  

E-Print Network [OSTI]

We demonstrate a procedure for cooling, trapping, and transferring rubidium atoms into a hollow core photonic band gap fiber. The atoms are first collected in a magneto-optical trap (MOT) and then cooled using polarization ...

Chu, Yiwen

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Contact Lee McGetrick Director, Carbon Fiber Technology Facility  

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

Lee McGetrick Director, Carbon Fiber Technology Facility (865) 574-6549 mcgetricklb@ornl.gov Craig Blue, Ph.D. Director, Manufacturing Demonstration Facility (865) 574-4351...

442

Demonstrating Innovative Low-Cost Carbon Fiber for Energy and...  

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

Demonstrating Innovative Low-Cost Carbon Fiber for Energy and National Security Applications Front-end creel for processing precursor in tow format In-line melt spinning for...

443

Design and implementation of nanoscale fiber mechanical testing apparatus  

E-Print Network [OSTI]

The rapid growth in the synthetic manufacturing industry demands higher resolution mechanical testing devices, capable of working with nanoscale fibers. A new device has been developed to perform single-axis tensile tests ...

Brayanov, Jordan, 1981-

2004-01-01T23:59:59.000Z

444

Fiber optic signal amplifier using thermoelectric power generation  

DOE Patents [OSTI]

A remote fiber optic signal amplifier for use as a repeater/amplifier, such as in transoceanic communication, powered by a Pu{sub 238} or Sr{sub 90} thermoelectric generator. The amplifier comprises a unit with connections on the receiving and sending sides of the communications system, and an erbium-doped fiber amplifier connecting each sending fiber to each receiving fiber. The thermoelectric generator, preferably a Pu{sub 238} or Sr{sub 90} thermoelectric generator delivers power to the amplifiers through a regulator. The heat exchange surfaces of the thermoelectric generator are made of material resistant to corrosion and biological growth and are directly exposed to the outside, such as the ocean water in transoceanic communications.

Hart, M.M.

1993-01-01T23:59:59.000Z

445

Signal processing for fiber optic acoustic sensor system  

E-Print Network [OSTI]

pulses from a single mode laser. Signals from multiple sensors in the array are separated and demultiplexed. The acoustic pressure information is determined by processing the returned optical pulses using a fiber Mach-Zehnder interferometer as an optical...

Zhu, Juhong

2000-01-01T23:59:59.000Z

446

Holographic imaging of natural-fiber-containing materials  

DOE Patents [OSTI]

The present invention includes methods and apparatuses for imaging material properties in natural-fiber-containing materials. In particular, the images can provide quantified measures of localized moisture content. Embodiments of the invention utilize an array of antennas and at least one transceiver to collect amplitude and phase data from radiation interacting with the natural-fiber-containing materials. The antennas and the transceivers are configured to transmit and receive electromagnetic radiation at one or more frequencies, which are between 50 MHz and 1 THz. A conveyance system passes the natural-fiber-containing materials through a field of view of the array of antennas. A computing device is configured to apply a synthetic imaging algorithm to construct a three-dimensional image of the natural-fiber-containing materials that provides a quantified measure of localized moisture content. The image and the quantified measure are both based on the amplitude data, the phase data, or both.

Bunch, Kyle J [Richland, WA; Tucker, Brian J [Pasco, WA; Severtsen, Ronald H [Richland, WA; Hall, Thomas E [Kennewick, WA; McMakin, Douglas L [Richland, WA; Lechelt, Wayne M [West Richland, WA; Griffin, Jeffrey W [Kennewick, WA; Sheen, David M [Richland, WA

2010-12-21T23:59:59.000Z

447

Optical fiber based ultrashort pulse multispectral nonlinear optical microscopy  

E-Print Network [OSTI]

Nonlinear optical microscopy (NLOM) utilizing femtosecond laser pulses is well suited for imaging living tissues. This work reports on the design and development of an optical fiber based multispectral NLOM developed around a laser generating...

Larson, Adam Michael

2009-05-15T23:59:59.000Z

448

Accelerated Aging Effects on Kevlar KM2 Fiber Survivability  

E-Print Network [OSTI]

Kevlar materials offer excellent tensile and thermal properties but can rapidly degrade under exposure to hot and humid environmental conditions. Currently Kevlar fiber's survival probability comes from a single filament test. Unfortunately...

Yang, Tony

2013-04-12T23:59:59.000Z

449

Demonstrating LED and Fiber Optic Lighting in Commissary Applications  

Broader source: Energy.gov [DOE]

Presentation—given at the Federal Utility Partnership Working Group (FUPWG) Fall 2008 meeting—covers goals of the project and applications for light-emitting diodes (LEDs) and fiber optic lighting.

450

Fiber optic signal amplifier using thermoelectric power generation  

DOE Patents [OSTI]

A remote fiber optic signal amplifier for use as a repeater/amplifier, such as in transoceanic communications, powered by a Pu{sub 238} or Sr{sub 90} thermoelectric generator. The amplifier comprises a unit with connections on the receiving and sending sides of the communications system, and an erbium-doped fiber amplifier connecting each sending fiber to each receiving fiber. The thermoelectric generator, preferably a Pu{sub 238} or Sr{sub 90} thermoelectric generator delivers power to the amplifiers through a regulator. The heat exchange surfaces of the thermoelectric generator are made of materials resistant to corrosion and biological growth and are directly exposed to the outside, such as the ocean water in transoceanic communications. 2 figs.

Hart, M.M.

1995-04-18T23:59:59.000Z

451

Fiber optic signal amplifier using thermoelectric power generation  

DOE Patents [OSTI]

A remote fiber optic signal amplifier for use as a repeater/amplifier, such as in transoceanic communications, powered by a Pu.sub.238 or Sr.sub.90 thermoelectric generator. The amplifier comprises a unit with connections on the receiving and sending sides of the communications system, and an erbium-doped fiber amplifier connecting each sending fiber to each receiving fiber. The thermoelectric generator, preferably a Pu.sub.238 or Sr.sub.90 thermoelectric generator delivers power to the amplifiers through a regulator. The heat exchange surfaces of the thermoelectric generator are made of materials resistant to corrosion and biological growth and are directly exposed to the outside, such as the ocean water in transoceanic communications.

Hart, Mark M. (Aiken, SC)

1995-01-01T23:59:59.000Z

452

Microsoft Word - PGE Pearl Fiber CX.doc  

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

Proposed Action: Pearl Substation Fiber Project Budget Information: Work Order 279257 Task 01 Categorical Exclusions Applied (from Subpart D, 10 C.F.R. Part 1021: B1.7...

453

Microsoft Word - Central Ferry Fiber Project CX.doc  

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

Proposed Action: Central Ferry Fiber Project Budget Information: Work Order 00223131, Task 03 Categorical Exclusions Applied (from Subpart D, 10 C.F.R. Part 1021: B1.7...

454

Microsoft Word - GrandCouleeFiber_CX_2014.docx  

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

it into compliance. The fiber would be moved underground through a new conduit of 4-foot PVC pipe that would be installed as part of this project. The conduit would be 130 feet...

455

ON FIBERED COMMENSURABILITY DANNY CALEGARI, HONGBIN SUN, AND SHICHENG WANG  

E-Print Network [OSTI]

ON FIBERED COMMENSURABILITY DANNY CALEGARI, HONGBIN SUN, AND SHICHENG WANG Abstract. This paper fibrations of M; Date: June 28, 2010. 1 #12;2 DANNY CALEGARI, HONGBIN SUN, AND SHICHENG WANG hence M has

McReynolds, Ben

456

Use of fiber reinforced polymer composite in bridge structures  

E-Print Network [OSTI]

Fiber reinforced polymer composite (FRP) is a new construction material, gradually gaining acceptance from civil engineers. Bridge engineering is among the fields in civil engineering benefiting from the introduction of ...

Tuakta, Chakrapan, 1980-

2005-01-01T23:59:59.000Z

457

Fiber Reinforced Polymer Composite Manufacturing Workshop “Save the Date”  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy’s Advanced Manufacturing Office plans to host a Fiber Reinforced Polymer Composite Manufacturing Workshop in the Washington D.C. area on Monday January 13, 2014.

458

Lightweight concrete : investigations into the production of natural fiber reinforcement  

E-Print Network [OSTI]

The purpose of this study is to investigate the benefits of adding natural fiber tensile reinforcement to aerated concrete. Concrete is a great composite material which can be created in various proportions and with various ...

Garbis, Leonidia Maria

2013-01-01T23:59:59.000Z

459

Method for dissolution and stabilization of silica-rich fibers  

DOE Patents [OSTI]

A method is described for dissolving silica-rich fibers such as borosilicate fibers, fiberglass and asbestos to stabilize them for disposal. The method comprises (1) immersing the fibers in hot, five-weight-percent sodium hydroxide solution until the concentration of dissolved silica reaches equilibrium and a only a residue is left (about 48 hours), then immersing the residue in hot, five-weight-percent nitric acid until the residue dissolves (about 96 hours). After adjusting the pH of the dissolved fibers to be caustic, the solution can then be added to a waste vitrification stream for safe disposal. The method is useful in disposing contaminated HEME and HEPA filters. 1 fig.

Jantzen, C.M.

1997-11-11T23:59:59.000Z

460

Carbon-Fiber-Reinforced Elastomers: "Materials by Design" Approach...  

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

Carbon-Fiber-Reinforced Elastomers: "Materials by Design" Approach to Property Tuning with Applications to Impact-Resistant Structures Apr 22 2015 02:00 PM - 03:00 PM Thomas L....

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Airborne asbestos fiber evaluation: a comparison of three methods  

E-Print Network [OSTI]

Najor Subject: Industrial Hygiene AIRBORNE ASBESTOS FIBER EVALUATION-A COMPARISON OF THRFE METHODS A Thesis by EMIL STUDI NKA Approved as to style and content by: ichard B. onzen air ar, of Committee) llaymon L. Johnston (Member) hlilliam P.... Fife (Member) N. . Ellis (Department Head) December 1979 ABSTRACT Airborne Asbestos Fiber Evaluat1on - A Compar1son Of Three Methods. ( December 1979) Emil Studinka, Jr. , S. S. , Clemson University M. S. , Texas A&M University Cha1rman of Ad...

Studinka, Emil

2012-06-07T23:59:59.000Z

462

Clad fiber capacitor and method of making same  

SciTech Connect (OSTI)

A clad capacitor and method of manufacture includes assembling a preform comprising a ductile, electrically conductive fiber; a ductile, electrically insulating cladding positioned on the fiber; a ductile, electrically conductive sleeve positioned over the cladding. One or more of the preforms are then bundled, heated and drawn along a longitudinal axis to decrease the diameter of the ductile components of the preform and fuse the preform into a unitized strand.

Tuncer, Enis

2013-11-26T23:59:59.000Z

463

Fabry-Perot fiber optic sensor using multimode laser diode  

E-Print Network [OSTI]

heating and cooling cycles. Also, a sporadic waveform on top of the periodic waveform is observed. This is due to mechanical drift in the feedback loop between the thermoelectric cooler and the temperature controller as previously mentioned. Fig. 11... fiber and later reaches a transducer, which takes the form of an integrated optics device, bulk optical components or a fiber optic device, placed within the sensing environment. The optical signal is modulated within the sensing region...

Chu, Siu Yi Andrew

1993-01-01T23:59:59.000Z

464

Fiber tip interferometry for non-contact ultrasonic NDE  

E-Print Network [OSTI]

FIBER TIP INTERFEROMETRY FOR NON-CONTACT ULTRASONIC NDE A Thesis by Neal Andrew Schumacher Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... August 1990 Major Subject: Mechanical Engineering FIBER TIP INTERFEROMETRY FOR NON-CONTACT ULTRASONIC NDE A Thesis by Neal Andrew Schumacher Approved as to style and content by: Christian P. Burger (Chair of Committee) Hans Schuessler...

Schumacher, Neal Andrew

2012-06-07T23:59:59.000Z

465

Modeling the thermal conductivity of fiber-reinforced ceramic composites  

SciTech Connect (OSTI)

A review of models for the prediction of the thermal conductivity of uni-directional fiber-reinforced composites will be presented. The ability of these models to give an accurate prediction of the composite thermal conductivity depends on the amount of information known about the constituent phase properties under the assumption that these properties do not change as a result of processing. Also presented are models that take into account the effects of fiber coatings.

Beecher, S.C.; Dinwiddie, R.B.

1993-06-01T23:59:59.000Z

466

Fiber optic diagnostic techniques for the electrical discharge machining process  

E-Print Network [OSTI]

FIBER OPTIC DIAGNOSTIC TECHNIQUES FOR THE ELECTRICAL DISCHARGE MACHINING PROCESS A Thesis by BRANDON WILLIAM PILLANS Submitted to the Office of Graduate Studies of Texas AB M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE August t 998 Major Subject: Electrical Engineering FIBER OPTIC DIAGNOSTIC TECHNIQUES FOR THE ELECTRICAL DISCHARGE MACHINING PROCESS A Thesis by BRANDON WILLIAM PILLANS Submitted to Texas A8M University in partial...

Pillans, Brandon William

2012-06-07T23:59:59.000Z

467

Surface plasmon sensing of gas phase contaminants using optical fiber.  

SciTech Connect (OSTI)

Fiber-optic gas phase surface plasmon resonance (SPR) detection of several contaminant gases of interest to state-of-health monitoring in high-consequence sealed systems has been demonstrated. These contaminant gases include H{sub 2}, H{sub 2}S, and moisture using a single-ended optical fiber mode. Data demonstrate that results can be obtained and sensitivity is adequate in a dosimetric mode that allows periodic monitoring of system atmospheres. Modeling studies were performed to direct the design of the sensor probe for optimized dimensions and to allow simultaneous monitoring of several constituents with a single sensor fiber. Testing of the system demonstrates the ability to detect 70mTorr partial pressures of H{sub 2} using this technique and <280 {micro}Torr partial pressures of H{sub 2}S. In addition, a multiple sensor fiber has been demonstrated that allows a single fiber to measure H{sub 2}, H{sub 2}S, and H{sub 2}O without changing the fiber or the analytical system.

Thornberg, Steven Michael; White, Michael I.; Rumpf, Arthur Norman; Pfeifer, Kent Bryant

2009-10-01T23:59:59.000Z

468

Continuous fiber ceramic composites for energy related applications. Final report  

SciTech Connect (OSTI)

The US Department of Energy has established the Continuous Fiber Ceramic Composites (CFCC) program to develop technology for the manufacture of CFCC`s for use in industrial applications where a reduction in energy usage or emissions could be realized. As part of this program, the Dow Chemical Company explored the manufacture of a fiber reinforced/self reinforced silicon nitride for use in industrial chemical processing. In Dow`s program, CFCC manufacturing technology was developed around traditional, cost effective, tape casting routes. Formulations were developed and coupled with unique processing procedures which enabled the manufacture of tubular green laminates of the dimension needed for the application. An evaluation of the effect of various fibers and fiber coatings on the properties of a fiber reinforced composites was also conducted. Results indicated that fiber coatings could provide composites exhibiting non-catastrophic failure and substantially improved toughness. However, an evaluation of these materials in industrial process environments showed that the material system chosen by Dow did not provide the required performance improvements to make replacement of current metallic components with CFCC components economically viable.

NONE

1998-04-07T23:59:59.000Z

469

IDENTIFICATION OF DAMAGE TYPES IN CARBON FIBER REINFORCED PLASTIC LAMINATES BY A NOVEL OPTICAL FIBER ACOUSTIC EMISSION SENSOR  

E-Print Network [OSTI]

IDENTIFICATION OF DAMAGE TYPES IN CARBON FIBER REINFORCED PLASTIC LAMINATES BY A NOVEL OPTICAL technology. PZT sensors have been being used as AE sensors. However, because this kind of sensor has bulk

Boyer, Edmond

470

Fiber optic temperature sensor using a grating on an angled fiber tip  

E-Print Network [OSTI]

by a DC current source. The sensor was spliced with some more single mode fiber and coupled to the photo detector. The photo detector circuit consisted of an InGaAs 1550nm photodiode along with a trans-impedance circuit to reduce the noise... and amplify the output signal. The output signal was received in a data file using an NI-DAQ interface and a C program (Appendix E). The receiver circuit used with the photodiode is shown in figure 21. 30 2K 2K DC Power Supply 9V Ph oto Dtode 10K OP27...

Varadarajan, Harini

2012-06-07T23:59:59.000Z

471

Polarization insensitive in-fiber mode-locker based on carbon nanotube with N-methyl-2-pryrrolidone solvent filled fiber microchamber  

E-Print Network [OSTI]

) Theoretical study on phase locking of the array of fiber lasers coupled by bi-dimensional mutual injection AIP excitation source for coherent Raman spectroscopy based on a single fiber laser Appl. Phys. Lett. 99, 181112 locking. The proposed and demonstrated passively mode locked fiber laser shows higher energy soliton

Turitsyn, Sergei K.

472

CODIFICATION OF FIBER REINFORCED COMPOSITE PIPING  

SciTech Connect (OSTI)

The goal of the overall project is to successfully adapt spoolable FRP currently used in the oil industry for use in hydrogen pipelines. The use of FRP materials for hydrogen service will rely on the demonstrated compatibility of these materials for pipeline service environments and operating conditions. The ability of the polymer piping to withstand degradation while in service, and development of the tools and data required for life management are imperative for successful implementation of these materials for hydrogen pipeline. The information and data provided in this report provides the technical basis for the codification for fiber reinforced piping (FRP) for hydrogen service. The DOE has invested in the evaluation of FRP for the delivery for gaseous hydrogen to support the development of a hydrogen infrastructure. The codification plan calls for detailed investigation of the following areas: System design and applicable codes and standards; Service degradation of FRP; Flaw tolerance and flaw detection; Integrity management plan; Leak detection and operational controls evaluation; Repair evaluation. The FRP codification process started with commercially available products that had extensive use in the oil and gas industry. These products have been evaluated to assure that sufficient structural integrity is available for a gaseous hydrogen environment.

Rawls, G.

2012-10-10T23:59:59.000Z

473

Lithium Loaded Glass Fiber Neutron Detector Tests  

SciTech Connect (OSTI)

Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world and, thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. Reported here are the results of tests of the lithium-loaded glass fibers option. This testing measured the neutron detection efficiency and gamma ray rejection capabilities of a small system manufactured by Nucsafe (Oak Ridge, TN).

Ely, James H.; Erikson, Luke E.; Kouzes, Richard T.; Lintereur, Azaree T.; Stromswold, David C.

2009-11-12T23:59:59.000Z

474

2568 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 23, NO. 8, AUGUST 2005 Long-Period Fiber Grating Fabrication by  

E-Print Network [OSTI]

fiber). It was found that the grating strength in the case of SMF-28 fiber, irradiated with high. The thermal studies of the recorded gratings were also conducted. Index Terms--Laser excitation, optical fiber devices, optical fiber filters, ultraviolet radiation effects. I. INTRODUCTION THOUGH long-period fiber

Nikogosyan, David N.

475

System to continuously produce carbon fiber via microwave assisted plasma processing  

DOE Patents [OSTI]

A system to continuously produce fully carbonized or graphitized carbon fibers using microwave-assisted plasma (MAP) processing comprises an elongated chamber in which a microwave plasma is excited in a selected gas atmosphere. Fiber is drawn continuously through the chamber, entering and exiting through openings designed to minimize in-leakage of air. There is a gradient of microwave power within the chamber with generally higher power near where the fiber exits and lower power near where the fiber enters. Polyacrylonitrile (PAN), pitch, or any other suitable organic/polymeric precursor fibers can be used as a feedstock for the inventive system. Oxidized or partially oxidized PAN or pitch or other polymeric fiber precursors are run continuously through a MAP reactor in an inert, non-oxidizing atmosphere to heat the fibers, drive off the unwanted elements such as oxygen, nitrogen, and hydrogen, and produce carbon or graphite fibers faster than conventionally produced carbon fibers.

White, Terry L. (Knoxville, TN) [Knoxville, TN; Paulauskas, Felix L. (Knoxville, TN) [Knoxville, TN; Bigelow, Timothy S. (Knoxville, TN) [Knoxville, TN

2010-11-02T23:59:59.000Z

476

Fiber scrambling for high-resolution spectrographs. II. A double fiber scrambler for Keck Observatory  

E-Print Network [OSTI]

We have designed a fiber scrambler as a prototype for the Keck HIRES spectrograph, using double scrambling to stabilize illumination of the spectrometer and a pupil slicer to increase spectral resolution to R = 70,000 with minimal slit losses. We find that the spectral line spread function (SLSF) for the double scrambler observations is 18 times more stable than the SLSF for comparable slit observations and 9 times more stable than the SLSF for a single fiber scrambler that we tested in 2010. For the double scrambler test data, we further reduced the radial velocity scatter from an average of 2.1 m/s to 1.5 m/s after adopting a median description of the stabilized SLSF in our Doppler model. This demonstrates that inaccuracies in modeling the SLSF contribute to the velocity RMS. Imperfect knowledge of the SLSF, rather than stellar jitter, sets the precision floor for chromospherically quiet stars analyzed with the iodine technique using Keck HIRES and other slit-fed spectrometers. It is increasingly common pra...

Spronck, Julien F P; Kaplan, Zachary; Jurgenson, Colby; Valenti, Jeff; Moriarty, John; Szymkowiak, Andrew E

2015-01-01T23:59:59.000Z

477

Multiparameter fiber optic sensing system for monitoring enhanced geothermal systems  

SciTech Connect (OSTI)

The goal of this project was to design, fabricate and test an optical fiber cable which supports multiple sensing modalities for measurements in the harsh environment of enhanced geothermal systems. To accomplish this task, optical fiber was tested at both high temperatures and strains for mechanical integrity, and in the presence of hydrogen for resistance to darkening. Both single mode (SM) and multimode (MM) commercially available optical fiber were identified and selected for the cable based on the results of these tests. The cable was designed and fabricated using a tube-within-tube construction containing two MM fibers and one SM fiber, and without supporting gel that is not suitable for high temperature environments. Commercial fiber optic sensing instruments using Raman DTS (distributed temperature sensing), Brillouin DTSS (distributed temperature and strain sensing), and Raleigh COTDR (coherent optical time domain reflectometry) were selected for field testing. A microelectromechanical systems (MEMS) pressure sensor was designed, fabricated, packaged, and calibrated for high pressure measurements at high temperatures and spliced to the cable. A fiber Bragg grating (FBG) temperature sensor was also spliced to the cable. A geothermal well was selected and its temperature and pressure were logged. The cable was then deployed in the well in two separate field tests and measurements were made on these different sensing modalities. Raman DTS measurements were found to be accurate to ���±5���°C, even with some residual hydrogen darkening. Brillouin DTSS measurements were in good agreement with the Raman results. The Rayleigh COTDR instrument was able to detect some acoustic signatures, but was generally disappointing. The FBG sensor was used to determine the effects of hydrogen darkening, but drift over time made it unreliable as a temperature or pressure sensor. The MEMS sensor was found to be highly stable and accurate to better than its 0.1% calibration.

William A. Challener

2014-12-04T23:59:59.000Z

478

Tensile strain measurements of ceramic fibers using scanning laser acoustic microscopy  

SciTech Connect (OSTI)

A noncontacting technique using scanning laser acoustic microscopy for making in situ tensile strain measurements of small diameter fibers was implemented for the tensile strain analysis of individual Nicalon SiC fibers (nominal diameter 15 microns). Stress versus strain curves for the fibers were plotted from the experimental data. The mean elastic modulus of the fibers was determined to be 185.3 GPa. Similar measurements were made for Carborundum SiC fibers (nominal diameter 28 microns) and Saphikon sapphire fibers (nominal diameter 140 microns), yielding and elastic modulus of 401 and 466.8 GPa, respectively.

Kent, R.M.; Vary, A.

1992-01-01T23:59:59.000Z

479

Tensile strain measurements of ceramic fibers using scanning laser acoustic microscopy  

SciTech Connect (OSTI)

A noncontacting technique using scanning laser acoustic microscopy for making in situ tensile strain measurements of small diameter fibers was implemented for the tensile strain analysis of individual Nicalon SiC fibers (nominal diameter 15 microns). Stress vs strain curves for the fibers were plotted from the experimental data. The mean elastic modulus of the fibers was determined to be 185.3 GPa. Similar measurements were made for Carborundum SiC fibers (nominal diameter 28 microns) and Saphikon sapphire fibers (nominal diameter 140 microns). 8 refs.

Kent, R.M.; Vary, A.

1992-08-01T23:59:59.000Z

480

Optical Fiber High Temperature Sensor Instrumentation for Energy Intensive Industries  

SciTech Connect (OSTI)

This report summarizes technical progress during the program “Optical Fiber High Temperature Sensor Instrumentation for Energy Intensive Industries”, performed by the Center for Photonics Technology of the Bradley Department of Electrical and Computer Engineering at Virginia Tech. The objective of this program was to use technology recently invented at Virginia Tech to develop and demonstrate the application of self-calibrating optical fiber temperature and pressure sensors to several key energy-intensive industries where conventional, commercially available sensors exhibit greatly abbreviated lifetimes due primarily to environmental degradation. A number of significant technologies were developed under this program, including • a laser bonded silica high temperature fiber sensor with a high temperature capability up to 700°C and a frequency response up to 150 kHz, • the world’s smallest fiber Fabry-Perot high temperature pressure sensor (125 x 20 ?m) with 700°C capability, • UV-induced intrinsic Fabry-Perot interferometric sensors for distributed measurement, • a single crystal sapphire fiber-based sensor with a temperature capability up to 1600°C. These technologies have been well demonstrated and laboratory tested. Our work plan included conducting major field tests of these technologies at EPRI, Corning, Pratt & Whitney, and Global Energy; field validation of the technology is critical to ensuring its usefulness to U.S. industries. Unfortunately, due to budget cuts, DOE was unable to follow through with its funding commitment to support Energy Efficiency Science Initiative projects and this final phase was eliminated.

Cooper, Kristie L.; Wang, Anbo; Pickrell, Gary R.

2006-11-14T23:59:59.000Z

Note: This page contains sample records for the topic "finishing fiber yarn" 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

Comparison of flat cleaved and cylindrical diffusing fibers as treatment sources for interstitial photodynamic therapy  

SciTech Connect (OSTI)

Purpose: For interstitial photodynamic therapy (iPDT) of bulky tumors, careful treatment planning is required in order to ensure that a therapeutic dose is delivered to the tumor, while minimizing damage to surrounding normal tissue. In clinical contexts, iPDT has typically been performed with either flat cleaved or cylindrical diffusing optical fibers as light sources. Here, the authors directly compare these two source geometries in terms of the number of fibers and duration of treatment required to deliver a prescribed light dose to a tumor volume. Methods: Treatment planning software for iPDT was developed based on graphics processing unit enhanced Monte Carlo simulations. This software was used to optimize the number of fibers, total energy delivered by each fiber, and the position of individual fibers in order to deliver a target light dose (D{sub 90}) to 90% of the tumor volume. Treatment plans were developed using both flat cleaved and cylindrical diffusing fibers, based on tissue volumes derived from CT data from a head and neck cancer patient. Plans were created for four cases: fixed energy per fiber, fixed number of fibers, and in cases where both or neither of these factors were fixed. Results: When the number of source fibers was fixed at eight, treatment plans based on flat cleaved fibers required each to deliver 7180–8080 J in order to deposit 90 J/cm{sup 2} in 90% of the tumor volume. For diffusers, each fiber was required to deliver 2270–2350 J (333–1178 J/cm) in order to achieve this same result. For the case of fibers delivering a fixed 900 J, 13 diffusers or 19 flat cleaved fibers at a spacing of 1 cm were required to deliver the desired dose. With energy per fiber fixed at 2400 J and the number of fibers fixed at eight, diffuser fibers delivered the desired dose to 93% of the tumor volume, while flat cleaved fibers delivered this dose to 79%. With both energy and number of fibers allowed to vary, six diffusers delivering 3485–3600 J were required, compared to ten flat cleaved fibers delivering 2780–3600 J. Conclusions: For the same number of fibers, cylindrical diffusers allow for a shorter treatment duration compared to flat cleaved fibers. For the same energy delivered per fiber, diffusers allow for the insertion of fewer fibers in order to deliver the same light dose to a target volume.

Baran, Timothy M., E-mail: timothy.baran@rochester.edu; Foster, Thomas H. [Department of Imaging Sciences, University of Rochester, Rochester, New York 14642 (United States)] [Department of Imaging Sciences, University of Rochester, Rochester, New York 14642 (United States)

2014-02-15T23:59:59.000Z

482

The effect of fiber coating thickness on the interfacial properties of a continuous fiber ceramic matrix composite  

SciTech Connect (OSTI)

The interfacial properties (coefficient of friction, residual clamping stress, residual axial stress, and debond stress) of a continuous fiber ceramic composite were determined by means of single-fiber push-out tests. The composite consisted of Nicalon{trademark} fibers, that had been coated prior to matrix infiltration with carbon layers ranging in thickness from 0.03 to 1.2 {mu}m, and a SiC matrix. It was found that the effective interfacial frictional stress decreased as the thickness of the carbon layer increased, from 24.6 {plus_minus} 9.9 MPa for a thickness of 0.03 Jim to 5.8 {plus_minus} 1.4 MPa for a thickness of 1.25 {mu}m. It was also found that both the coefficient of friction and the residual clamping stress decreased as the thickness of the carbon layer increased. These results are explained in terms of the state of residual stresses in this composite and the role of the fiber surface topography during fiber sliding.

Lara-Curzio, E.; Ferber, M.K.; Lowden, R.A.

1994-09-01T23:59:59.000Z

483

New Manufacturing Method for Paper filler and Fiber Material  

SciTech Connect (OSTI)

The study compares commercial available filler products with a new developed â??Hybrid Fiber Filler Composite Materialâ?ť and how main structural, optical and strength properties are affected by increasing the filler content of at least 5% over commercial values. The study consists of: (i) an overview of paper filler materials used in the paper production process, (ii) discusses the manufacturing technology of lime based filler materials for paper applications, (iii) gives an overview of new emerging paper filler technologies, (iv) discusses a filler evaluation of commercial available digital printing paper products, (v) reports from a detailed handsheet study and 12â?ť pilot plant paper machine trial runs with the new Hybrid Fiber Filler Composite Material, and (vi) evaluates and compares commercial filler products and the new Hybrid Fiber Filler Composite Material with a life cycle analyses that explains manufacturing, economic and environmental benefits as they are applied to uncoated digital printing papers.

Doelle, Klaus

2011-11-22T23:59:59.000Z

484

Compact multiwavelength transmitter module for multimode fiber optic ribbon cable  

DOE Patents [OSTI]

A compact multiwavelength transmitter module for multimode fiber optic ribbon cable, which couples light from an M.times.N array of emitters onto N fibers, where the M wavelength may be distributed across two or more vertical-cavity surface-emitting laser (VCSEL) chips, and combining emitters and multiplexer into a compact package that is compatible with placement on a printed circuit board. A key feature is bringing together two emitter arrays fabricated on different substrates--each array designed for a different wavelength--into close physical proximity. Another key feature is to compactly and efficiently combine the light from two or more clusters of optical emitters, each in a different wavelength band, into a fiber ribbon.

Deri, Robert J. (Pleasanton, CA); Pocha, Michael D. (Livermore, CA); Larson, Michael C. (Goleta, CA); Garrett, Henry E. (Livermore, CA)

2002-01-01T23:59:59.000Z

485

Mid-Infrared Fiber-Coupled QCl-QEPAS Sensor  

SciTech Connect (OSTI)

An innovative spectroscopic system based on an external cavity quantum cascade laser (EC-QCL) coupled with a mid-infrared (mid-IR) fiber and quartz enhanced photoacoustic spectroscopy (QEPAS) is described. SF6 has been selected as a target gas in demonstration of the system for trace gas sensing. Single mode laser delivery through the prongs of the quartz tuning fork has been obtained employing a hollow waveguide fiber with inner silver–silver iodine (Ag–AgI) coatings and internal core diameter of 300 lm. A detailed design and realization of the QCL fiber coupling and output collimator system allowed almost practically all (99.4 %) of the laser beam to be transmitted through the spectrophone module. The achieved sensitivity of the system is 50 parts per trillion in 1 s, corresponding to a record for QEPAS normalized noise-equivalent absorption 2.7 9 10-10 W cm-1 Hz-1/2.

Spagnolo, V.; Patimisco, P.; Borri, Simone; Scamarcio, G.; Bernacki, Bruce E.; Kriesel, J.M.

2013-08-01T23:59:59.000Z

486

Expanded beam non-imaging fiber optic connector  

DOE Patents [OSTI]

There is disclosed an expanded beam fiber to fiber connector, based on non-imaging optic principles for coupling light beams from one optical fiber to another. The system consists of two identical connector parts, referred to herein as a collimating part and a concentrating part, each having a preferred partially curved reflective boundary surface for minimizing power loss and surrounding either a hollow space or a space filled with a uniform transparent medium. In one embodiment the boundary is metallic while in a second embodiment the boundary is in the form of an interface allowing total internal reflection. In both the hollow and filled case a lens may be located at the expanded end of both the collimater part and the concentrator part forming the connector. The connector is preferably located in a housing in order to protect and preserve the mechanical stability of the coupler.

Jannson, Tommasz (Redondo Beach, CA); Jannson, Joanna (Redondo Beach, CA); Yeung, Peter (Redondo Beach, CA)

1990-01-01T23:59:59.000Z

487

Expanded beam non-imaging fiber optic connector  

DOE Patents [OSTI]

There is disclosed an expanded beam fiber to fiber connector, based on non-imaging optic principles for coupling light beams from one optical fiber to another. The system consists of two identical connector parts, referred to herein as a collimating part and a concentrating part, each having a preferred partially curved reflective boundary surface for minimizing power loss and surrounding either a hollow space or a space filled with a uniform transparent medium. In one embodiment the boundary is metallic while in a second embodiment the boundary is in the form of an interface allowing total internal reflection. In both the hollow and filled case a lens may be located at the expanded end of both the collimator part and the concentrator part forming the connector. The connector is preferably located in a housing in order to protect and preserve the mechanical stability of the coupler. 13 figs.

Jannson, T.; Jannson, J.; Yeung, P.

1990-02-06T23:59:59.000Z

488

Superconductor fiber elongation with a heated injected gas  

DOE Patents [OSTI]

An improved method and apparatus for producing flexible fibers (30) of superconducting material includes a crucible (12) for containing a charge of the superconducting material. The material is melted in the crucible (12) and falls in a stream (18) through a bottom hole (16) in the crucible (12). The stream (18) falls through a protecting collar (22) which maintains the stream (18) at high temperatures. The stream (18) is then supplied through a downwardly directed nozzle (26) where it is subjected to a high velocity of a heated gas (36') which breaks the melted superconducting material into ligaments which solidify into the flexible fibers (30). The fibers (30) are collected by directing them against a collection filter (32).

Zeigler, Douglas D. (Atwater, OH); Conrad, Barry L. (Alliance, OH); Gleixner, Richard A. (North Canton, OH)

2001-01-16T23:59:59.000Z

489

Thermal shock behavior of fiber-reinforced composites  

SciTech Connect (OSTI)

The thermal shock behavior of three types of continuous fiber-reinforced ceramic composites (Nextel{trademark} or Nicalon{trademark} fiber-reinforced chemical vapor infiltrated or polymer-derived SiC matrix composites) was studied using the water quench technique. The thermal shock induced damage was characterized by both destructive and nondestructive techniques. As compared with monolithic ceramics, the continuous fiber-reinforced ceramic composites were capable of preventing catastrophic failure caused by thermal shock and were able to retain a significant portion of their original strength at {Delta}{Tau} = 1000{degrees}C. The nondestructive techniques involved measuring the thermal diffusivity by the flash technique and determining the Young`s modulus by the dynamic resonance method. It has been demonstrated that these nondestructive techniques can detect damage induced by thermal shock and are more sensitive in detecting damage in the early stage than the conventional destructive technique of measuring the retained strength.

Wang, H.; Singh, R.N. [Cincinnati Univ., OH (United States). Dept. of Materials Science and Engineering; Beecher, S.C.; Dinwiddie, R.B. [Oak Ridge National Lab., TN (United States)

1995-02-01T23:59:59.000Z

490

Oxidation-resistant interfacial coatings for continuous fiber ceramic composites  

SciTech Connect (OSTI)

Developing an oxidation-resistant interfacial coating for continuous fiber ceramic composites (CFCCs) continues to be a major challenge. CFCCs` mechanical behavior are influenced by the interfacial bonding characteristics between the fiber and the matrix. Finite element modeling studies suggest that a low-modulus interfacial coating material will be effective in reducing the residual thermal stresses that are generated upon cooling from processing temperatures. Nicalon/SiC composites with carbon, alumina and mullite interfacial coatings were fabricated with the SiC matrix deposited using a forced-flow chemical vapor infiltration process. Composites with mullite interfacial coatings exhibited considerable fiber pull-out even after oxidation and have potential as a composite system.

Shanmugham, S.; Liaw, P.K. [Tennessee Univ., Knoxville, TN (United States); Stinton, D.P.; Bleier, A.; Besmann, T.M.; Lara-Curzio, E. [Oak Ridge National Lab., TN (United States); Rebillat, F. [LCTS, Pessac (France)

1995-06-01T23:59:59.000Z

491

Carbon nanotube growth on challenging substrates : applications for carbon-fiber composites  

E-Print Network [OSTI]

Nanoengineered hierarchal fiber architectures are promising approaches towards improving the inter- and intralaminar mechanical properties (e.g., toughness and strength) and non-mechanical properties of advanced fiber-reinforced ...

Steiner, Stephen Alan, III

2012-01-01T23:59:59.000Z

492

Fiber-optic apparatus and method for measurement of luminescence and raman scattering  

DOE Patents [OSTI]

A dual fiber forward scattering optrode for Raman spectroscopy with the remote ends of the fibers in opposed, spaced relationship to each other to form a analyte sampling space therebetween and the method of measuring Raman spectra utilizing same. One optical fiber is for sending an exciting signal to the remote sampling space and, at its remote end, has a collimating microlens and an optical filter for filtering out background emissions generated in the fiber. The other optical fiber is for collecting the Raman scattering signal at the remote sampling space and, at its remote end, has a collimating microlens and an optical filter to prevent the exciting signal from the exciting fiber from entering the collection fiber and to thereby prevent the generation of background emissions in the collecting fiber.

Myrick, Michael L. (Livermore, CA); Angel, Stanley M. (Livermore, CA)

1993-01-01T23:59:59.000Z

493

A line-of-sight voice communication system with optoelectric fibers  

E-Print Network [OSTI]

Recently developed multi-material optoelectric fibers have showed great potential for use as photodetectors [1]. Such light-sensitive fibers are flexible and can be weaved through clothing with a seamless interface. Our ...

Yang, Paul L

2009-01-01T23:59:59.000Z

494

An instrument for high-throughput measurements of fiber mechanical properties  

E-Print Network [OSTI]

In this thesis, an instrument is designed and constructed for the purpose of measuring the mechanical properties of single fibers. The instrument is intended to provide high throughput measurement of single fiber geometric ...

Kristofek, Grant William, 1980-

2005-01-01T23:59:59.000Z

495

An optical fiber Faraday effect current sensor for power system applications  

E-Print Network [OSTI]

Optical fiber sensors have many inherent properties which make them ideal for applications within electric power systems. The dielectric isolation achieved in using optical fiber has fostered research in the areas of communication and sensing...

Short, Shayne Xavier

1995-01-01T23:59:59.000Z

496

Ford-Dow Partnership Is Linked to Carbon Fiber Research at ORNL...  

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

Ford-Dow Partnership Is Linked to Carbon Fiber Research at ORNL Ford-Dow Partnership Is Linked to Carbon Fiber Research at ORNL May 16, 2013 - 12:00am Addthis EERE provided funding...

497

Lorentz force actuator and carbon fiber co-winding design, construction and characterization  

E-Print Network [OSTI]

Carbon fiber composites are materials that present many benefits to engineering applications, ranging from aerospace to medicine. This thesis provides background on carbon fiber properties and manufacturing techniques, and ...

Chen, Yi, S. B. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

498

Amendment to LM-07-12 for Fiber Optic Cable Trenching at the...  

Energy Savers [EERE]

Amendment to LM-07-12 for Fiber Optic Cable Trenching at the Westminster, Colorado, Office Amendment to LM-07-12 for Fiber Optic Cable Trenching at the Westminster, Colorado,...

499

PURDUE UNIVERSITY ULTRAFAST OPTICS & OPTICAL FIBER COMMUNICATIONS LABORATORY Photonic RF Waveform Synthesis,  

E-Print Network [OSTI]

PURDUE UNIVERSITY ULTRAFAST OPTICS & OPTICAL FIBER COMMUNICATIONS LABORATORY Photonic RF Waveform, Shijun Xiao Funding from ARO, DARPA, and NSF #12;PURDUE UNIVERSITY ULTRAFAST OPTICS & OPTICAL FIBER performance (spectral engineering, dispersion compensation) #12;PURDUE UNIVERSITY ULTRAFAST OPTICS & OPTICAL

Purdue University

500

Ultrafast Optics and Optical Fiber Communications Laboratory http://purcell.ecn.purdue.edu/~fsoptics/  

E-Print Network [OSTI]

Ultrafast Optics and Optical Fiber Communications Laboratory http, A. M. Weiner Purdue University C. Lin Avanex Corporation Conference on Lasers and Electro Optics;Ultrafast Optics and Optical Fiber Communications Laboratory http://purcell.ecn.purdue.edu/~fsoptics/ 2

Purdue University